Debug utility to print index file

Still needs implemention in GUI

.gitignore

@@ -1,3 +1,7 @@
-_build/
-_deployed
-_deployed.old
+syncthing
+syncthing.exe
+stcli
+stcli.exe
+*.tar.gz
+*.zip
+*.asc

CONTRIBUTING.md

@@ -0,0 +1,54 @@
+Please do contribute! If you want to contribute but are unsure where to
+start, the [Contributions Needed
+page](https://github.com/calmh/syncthing/wiki/Contributions-Needed)
+lists areas in need of attention.
+
+## Licensing
+
+All contributions are made under the same MIT License as the rest of the
+project, except documentation which is licensed under the Creative
+Commons Attribution 4.0 International License. You retain the copyright
+to code you have written.
+
+When accepting your first contribution, the maintainer of the project
+will ensure that you are added to the CONTRIBUTORS file.
+
+## Building
+
+[See the wiki](https://github.com/calmh/syncthing/wiki/Building)
+
+## Branches
+
+ - `master` is the main branch containing good code that will end up in
+   the next release. You should base your work on it. It won't ever be
+   rebased or force-pushed to.
+
+ - `vx.y` branches exist to make patch releases on otherwise obsolete
+   minor releases. Should only contain fixes cherry picked from master.
+   Don't base any work on them.
+
+ - Other branches are probably topic branches and may be subject to
+   rebasing. Don't base any work on them unless you specifically know
+   otherwise.
+
+## Tags
+
+All releases are tagged semver style as `vx.y.z`. Release tags are
+signed by GPG key BCE524C7.
+
+## Tests
+
+Yes please!
+
+## Style
+
+`go fmt`
+
+## Documentation
+
+[Hack it here](https://github.com/calmh/syncthing/wiki)
+
+## License
+
+MIT
+

CONTRIBUTORS

@@ -0,0 +1,4 @@
+Aaron Bieber <qbit@deftly.net>
+Brandon Philips <brandon@ifup.org>
+James Patterson <jamespatterson@operamail.com>
+Philippe Schommers <philippe@schommers.be>

Godeps/Godeps.json

@@ -0,0 +1,49 @@
+{
+	"ImportPath": "github.com/calmh/syncthing",
+	"GoVersion": "go1.2.1",
+	"Packages": [
+		"./cmd/syncthing",
+		"./cmd/assets",
+		"./cmd/stcli",
+		"./discover/cmd/discosrv"
+	],
+	"Deps": [
+		{
+			"ImportPath": "code.google.com/p/go.crypto/bcrypt",
+			"Comment": "null-185",
+			"Rev": "6478cc9340cbbe6c04511280c5007722269108e9"
+		},
+		{
+			"ImportPath": "code.google.com/p/go.crypto/blowfish",
+			"Comment": "null-185",
+			"Rev": "6478cc9340cbbe6c04511280c5007722269108e9"
+		},
+		{
+			"ImportPath": "code.google.com/p/go.text/transform",
+			"Comment": "null-81",
+			"Rev": "9cbe983aed9b0dfc73954433fead5e00866342ac"
+		},
+		{
+			"ImportPath": "code.google.com/p/go.text/unicode/norm",
+			"Comment": "null-81",
+			"Rev": "9cbe983aed9b0dfc73954433fead5e00866342ac"
+		},
+		{
+			"ImportPath": "github.com/codegangsta/inject",
+			"Rev": "9aea7a2fa5b79ef7fc00f63a575e72df33b4e886"
+		},
+		{
+			"ImportPath": "github.com/codegangsta/martini",
+			"Comment": "v0.1-142-g8659df7",
+			"Rev": "8659df7a51aebe6c6120268cd5a8b4c34fa8441a"
+		},
+		{
+			"ImportPath": "github.com/golang/groupcache/lru",
+			"Rev": "d781998583680cda80cf61e0b37dd0cd8da2eb52"
+		},
+		{
+			"ImportPath": "github.com/juju/ratelimit",
+			"Rev": "cbaa435c80a9716e086f25d409344b26c4039358"
+		}
+	]
+}

Godeps/Readme

@@ -0,0 +1,5 @@
+This directory tree is generated automatically by godep.
+
+Please do not edit.
+
+See https://github.com/tools/godep for more information.

Godeps/_workspace/.gitignore

@@ -0,0 +1,2 @@
+/pkg
+/bin

Godeps/_workspace/src/code.google.com/p/go.crypto/bcrypt/base64.go

@@ -0,0 +1,35 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package bcrypt
+
+import "encoding/base64"
+
+const alphabet = "./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
+
+var bcEncoding = base64.NewEncoding(alphabet)
+
+func base64Encode(src []byte) []byte {
+	n := bcEncoding.EncodedLen(len(src))
+	dst := make([]byte, n)
+	bcEncoding.Encode(dst, src)
+	for dst[n-1] == '=' {
+		n--
+	}
+	return dst[:n]
+}
+
+func base64Decode(src []byte) ([]byte, error) {
+	numOfEquals := 4 - (len(src) % 4)
+	for i := 0; i < numOfEquals; i++ {
+		src = append(src, '=')
+	}
+
+	dst := make([]byte, bcEncoding.DecodedLen(len(src)))
+	n, err := bcEncoding.Decode(dst, src)
+	if err != nil {
+		return nil, err
+	}
+	return dst[:n], nil
+}

Godeps/_workspace/src/code.google.com/p/go.crypto/bcrypt/bcrypt.go

@@ -0,0 +1,294 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package bcrypt implements Provos and Mazières's bcrypt adaptive hashing
+// algorithm. See http://www.usenix.org/event/usenix99/provos/provos.pdf
+package bcrypt
+
+// The code is a port of Provos and Mazières's C implementation.
+import (
+	"code.google.com/p/go.crypto/blowfish"
+	"crypto/rand"
+	"crypto/subtle"
+	"errors"
+	"fmt"
+	"io"
+	"strconv"
+)
+
+const (
+	MinCost     int = 4  // the minimum allowable cost as passed in to GenerateFromPassword
+	MaxCost     int = 31 // the maximum allowable cost as passed in to GenerateFromPassword
+	DefaultCost int = 10 // the cost that will actually be set if a cost below MinCost is passed into GenerateFromPassword
+)
+
+// The error returned from CompareHashAndPassword when a password and hash do
+// not match.
+var ErrMismatchedHashAndPassword = errors.New("crypto/bcrypt: hashedPassword is not the hash of the given password")
+
+// The error returned from CompareHashAndPassword when a hash is too short to
+// be a bcrypt hash.
+var ErrHashTooShort = errors.New("crypto/bcrypt: hashedSecret too short to be a bcrypted password")
+
+// The error returned from CompareHashAndPassword when a hash was created with
+// a bcrypt algorithm newer than this implementation.
+type HashVersionTooNewError byte
+
+func (hv HashVersionTooNewError) Error() string {
+	return fmt.Sprintf("crypto/bcrypt: bcrypt algorithm version '%c' requested is newer than current version '%c'", byte(hv), majorVersion)
+}
+
+// The error returned from CompareHashAndPassword when a hash starts with something other than '$'
+type InvalidHashPrefixError byte
+
+func (ih InvalidHashPrefixError) Error() string {
+	return fmt.Sprintf("crypto/bcrypt: bcrypt hashes must start with '$', but hashedSecret started with '%c'", byte(ih))
+}
+
+type InvalidCostError int
+
+func (ic InvalidCostError) Error() string {
+	return fmt.Sprintf("crypto/bcrypt: cost %d is outside allowed range (%d,%d)", int(ic), int(MinCost), int(MaxCost))
+}
+
+const (
+	majorVersion       = '2'
+	minorVersion       = 'a'
+	maxSaltSize        = 16
+	maxCryptedHashSize = 23
+	encodedSaltSize    = 22
+	encodedHashSize    = 31
+	minHashSize        = 59
+)
+
+// magicCipherData is an IV for the 64 Blowfish encryption calls in
+// bcrypt(). It's the string "OrpheanBeholderScryDoubt" in big-endian bytes.
+var magicCipherData = []byte{
+	0x4f, 0x72, 0x70, 0x68,
+	0x65, 0x61, 0x6e, 0x42,
+	0x65, 0x68, 0x6f, 0x6c,
+	0x64, 0x65, 0x72, 0x53,
+	0x63, 0x72, 0x79, 0x44,
+	0x6f, 0x75, 0x62, 0x74,
+}
+
+type hashed struct {
+	hash  []byte
+	salt  []byte
+	cost  int // allowed range is MinCost to MaxCost
+	major byte
+	minor byte
+}
+
+// GenerateFromPassword returns the bcrypt hash of the password at the given
+// cost. If the cost given is less than MinCost, the cost will be set to
+// DefaultCost, instead. Use CompareHashAndPassword, as defined in this package,
+// to compare the returned hashed password with its cleartext version.
+func GenerateFromPassword(password []byte, cost int) ([]byte, error) {
+	p, err := newFromPassword(password, cost)
+	if err != nil {
+		return nil, err
+	}
+	return p.Hash(), nil
+}
+
+// CompareHashAndPassword compares a bcrypt hashed password with its possible
+// plaintext equivalent. Returns nil on success, or an error on failure.
+func CompareHashAndPassword(hashedPassword, password []byte) error {
+	p, err := newFromHash(hashedPassword)
+	if err != nil {
+		return err
+	}
+
+	otherHash, err := bcrypt(password, p.cost, p.salt)
+	if err != nil {
+		return err
+	}
+
+	otherP := &hashed{otherHash, p.salt, p.cost, p.major, p.minor}
+	if subtle.ConstantTimeCompare(p.Hash(), otherP.Hash()) == 1 {
+		return nil
+	}
+
+	return ErrMismatchedHashAndPassword
+}
+
+// Cost returns the hashing cost used to create the given hashed
+// password. When, in the future, the hashing cost of a password system needs
+// to be increased in order to adjust for greater computational power, this
+// function allows one to establish which passwords need to be updated.
+func Cost(hashedPassword []byte) (int, error) {
+	p, err := newFromHash(hashedPassword)
+	if err != nil {
+		return 0, err
+	}
+	return p.cost, nil
+}
+
+func newFromPassword(password []byte, cost int) (*hashed, error) {
+	if cost < MinCost {
+		cost = DefaultCost
+	}
+	p := new(hashed)
+	p.major = majorVersion
+	p.minor = minorVersion
+
+	err := checkCost(cost)
+	if err != nil {
+		return nil, err
+	}
+	p.cost = cost
+
+	unencodedSalt := make([]byte, maxSaltSize)
+	_, err = io.ReadFull(rand.Reader, unencodedSalt)
+	if err != nil {
+		return nil, err
+	}
+
+	p.salt = base64Encode(unencodedSalt)
+	hash, err := bcrypt(password, p.cost, p.salt)
+	if err != nil {
+		return nil, err
+	}
+	p.hash = hash
+	return p, err
+}
+
+func newFromHash(hashedSecret []byte) (*hashed, error) {
+	if len(hashedSecret) < minHashSize {
+		return nil, ErrHashTooShort
+	}
+	p := new(hashed)
+	n, err := p.decodeVersion(hashedSecret)
+	if err != nil {
+		return nil, err
+	}
+	hashedSecret = hashedSecret[n:]
+	n, err = p.decodeCost(hashedSecret)
+	if err != nil {
+		return nil, err
+	}
+	hashedSecret = hashedSecret[n:]
+
+	// The "+2" is here because we'll have to append at most 2 '=' to the salt
+	// when base64 decoding it in expensiveBlowfishSetup().
+	p.salt = make([]byte, encodedSaltSize, encodedSaltSize+2)
+	copy(p.salt, hashedSecret[:encodedSaltSize])
+
+	hashedSecret = hashedSecret[encodedSaltSize:]
+	p.hash = make([]byte, len(hashedSecret))
+	copy(p.hash, hashedSecret)
+
+	return p, nil
+}
+
+func bcrypt(password []byte, cost int, salt []byte) ([]byte, error) {
+	cipherData := make([]byte, len(magicCipherData))
+	copy(cipherData, magicCipherData)
+
+	c, err := expensiveBlowfishSetup(password, uint32(cost), salt)
+	if err != nil {
+		return nil, err
+	}
+
+	for i := 0; i < 24; i += 8 {
+		for j := 0; j < 64; j++ {
+			c.Encrypt(cipherData[i:i+8], cipherData[i:i+8])
+		}
+	}
+
+	// Bug compatibility with C bcrypt implementations. We only encode 23 of
+	// the 24 bytes encrypted.
+	hsh := base64Encode(cipherData[:maxCryptedHashSize])
+	return hsh, nil
+}
+
+func expensiveBlowfishSetup(key []byte, cost uint32, salt []byte) (*blowfish.Cipher, error) {
+
+	csalt, err := base64Decode(salt)
+	if err != nil {
+		return nil, err
+	}
+
+	// Bug compatibility with C bcrypt implementations. They use the trailing
+	// NULL in the key string during expansion.
+	ckey := append(key, 0)
+
+	c, err := blowfish.NewSaltedCipher(ckey, csalt)
+	if err != nil {
+		return nil, err
+	}
+
+	var i, rounds uint64
+	rounds = 1 << cost
+	for i = 0; i < rounds; i++ {
+		blowfish.ExpandKey(ckey, c)
+		blowfish.ExpandKey(csalt, c)
+	}
+
+	return c, nil
+}
+
+func (p *hashed) Hash() []byte {
+	arr := make([]byte, 60)
+	arr[0] = '$'
+	arr[1] = p.major
+	n := 2
+	if p.minor != 0 {
+		arr[2] = p.minor
+		n = 3
+	}
+	arr[n] = '$'
+	n += 1
+	copy(arr[n:], []byte(fmt.Sprintf("%02d", p.cost)))
+	n += 2
+	arr[n] = '$'
+	n += 1
+	copy(arr[n:], p.salt)
+	n += encodedSaltSize
+	copy(arr[n:], p.hash)
+	n += encodedHashSize
+	return arr[:n]
+}
+
+func (p *hashed) decodeVersion(sbytes []byte) (int, error) {
+	if sbytes[0] != '$' {
+		return -1, InvalidHashPrefixError(sbytes[0])
+	}
+	if sbytes[1] > majorVersion {
+		return -1, HashVersionTooNewError(sbytes[1])
+	}
+	p.major = sbytes[1]
+	n := 3
+	if sbytes[2] != '$' {
+		p.minor = sbytes[2]
+		n++
+	}
+	return n, nil
+}
+
+// sbytes should begin where decodeVersion left off.
+func (p *hashed) decodeCost(sbytes []byte) (int, error) {
+	cost, err := strconv.Atoi(string(sbytes[0:2]))
+	if err != nil {
+		return -1, err
+	}
+	err = checkCost(cost)
+	if err != nil {
+		return -1, err
+	}
+	p.cost = cost
+	return 3, nil
+}
+
+func (p *hashed) String() string {
+	return fmt.Sprintf("&{hash: %#v, salt: %#v, cost: %d, major: %c, minor: %c}", string(p.hash), p.salt, p.cost, p.major, p.minor)
+}
+
+func checkCost(cost int) error {
+	if cost < MinCost || cost > MaxCost {
+		return InvalidCostError(cost)
+	}
+	return nil
+}

Godeps/_workspace/src/code.google.com/p/go.crypto/bcrypt/bcrypt_test.go

@@ -0,0 +1,217 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package bcrypt
+
+import (
+	"bytes"
+	"fmt"
+	"testing"
+)
+
+func TestBcryptingIsEasy(t *testing.T) {
+	pass := []byte("mypassword")
+	hp, err := GenerateFromPassword(pass, 0)
+	if err != nil {
+		t.Fatalf("GenerateFromPassword error: %s", err)
+	}
+
+	if CompareHashAndPassword(hp, pass) != nil {
+		t.Errorf("%v should hash %s correctly", hp, pass)
+	}
+
+	notPass := "notthepass"
+	err = CompareHashAndPassword(hp, []byte(notPass))
+	if err != ErrMismatchedHashAndPassword {
+		t.Errorf("%v and %s should be mismatched", hp, notPass)
+	}
+}
+
+func TestBcryptingIsCorrect(t *testing.T) {
+	pass := []byte("allmine")
+	salt := []byte("XajjQvNhvvRt5GSeFk1xFe")
+	expectedHash := []byte("$2a$10$XajjQvNhvvRt5GSeFk1xFeyqRrsxkhBkUiQeg0dt.wU1qD4aFDcga")
+
+	hash, err := bcrypt(pass, 10, salt)
+	if err != nil {
+		t.Fatalf("bcrypt blew up: %v", err)
+	}
+	if !bytes.HasSuffix(expectedHash, hash) {
+		t.Errorf("%v should be the suffix of %v", hash, expectedHash)
+	}
+
+	h, err := newFromHash(expectedHash)
+	if err != nil {
+		t.Errorf("Unable to parse %s: %v", string(expectedHash), err)
+	}
+
+	// This is not the safe way to compare these hashes. We do this only for
+	// testing clarity. Use bcrypt.CompareHashAndPassword()
+	if err == nil && !bytes.Equal(expectedHash, h.Hash()) {
+		t.Errorf("Parsed hash %v should equal %v", h.Hash(), expectedHash)
+	}
+}
+
+func TestTooLongPasswordsWork(t *testing.T) {
+	salt := []byte("XajjQvNhvvRt5GSeFk1xFe")
+	// One byte over the usual 56 byte limit that blowfish has
+	tooLongPass := []byte("012345678901234567890123456789012345678901234567890123456")
+	tooLongExpected := []byte("$2a$10$XajjQvNhvvRt5GSeFk1xFe5l47dONXg781AmZtd869sO8zfsHuw7C")
+	hash, err := bcrypt(tooLongPass, 10, salt)
+	if err != nil {
+		t.Fatalf("bcrypt blew up on long password: %v", err)
+	}
+	if !bytes.HasSuffix(tooLongExpected, hash) {
+		t.Errorf("%v should be the suffix of %v", hash, tooLongExpected)
+	}
+}
+
+type InvalidHashTest struct {
+	err  error
+	hash []byte
+}
+
+var invalidTests = []InvalidHashTest{
+	{ErrHashTooShort, []byte("$2a$10$fooo")},
+	{ErrHashTooShort, []byte("$2a")},
+	{HashVersionTooNewError('3'), []byte("$3a$10$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},
+	{InvalidHashPrefixError('%'), []byte("%2a$10$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},
+	{InvalidCostError(32), []byte("$2a$32$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},
+}
+
+func TestInvalidHashErrors(t *testing.T) {
+	check := func(name string, expected, err error) {
+		if err == nil {
+			t.Errorf("%s: Should have returned an error", name)
+		}
+		if err != nil && err != expected {
+			t.Errorf("%s gave err %v but should have given %v", name, err, expected)
+		}
+	}
+	for _, iht := range invalidTests {
+		_, err := newFromHash(iht.hash)
+		check("newFromHash", iht.err, err)
+		err = CompareHashAndPassword(iht.hash, []byte("anything"))
+		check("CompareHashAndPassword", iht.err, err)
+	}
+}
+
+func TestUnpaddedBase64Encoding(t *testing.T) {
+	original := []byte{101, 201, 101, 75, 19, 227, 199, 20, 239, 236, 133, 32, 30, 109, 243, 30}
+	encodedOriginal := []byte("XajjQvNhvvRt5GSeFk1xFe")
+
+	encoded := base64Encode(original)
+
+	if !bytes.Equal(encodedOriginal, encoded) {
+		t.Errorf("Encoded %v should have equaled %v", encoded, encodedOriginal)
+	}
+
+	decoded, err := base64Decode(encodedOriginal)
+	if err != nil {
+		t.Fatalf("base64Decode blew up: %s", err)
+	}
+
+	if !bytes.Equal(decoded, original) {
+		t.Errorf("Decoded %v should have equaled %v", decoded, original)
+	}
+}
+
+func TestCost(t *testing.T) {
+	suffix := "XajjQvNhvvRt5GSeFk1xFe5l47dONXg781AmZtd869sO8zfsHuw7C"
+	for _, vers := range []string{"2a", "2"} {
+		for _, cost := range []int{4, 10} {
+			s := fmt.Sprintf("$%s$%02d$%s", vers, cost, suffix)
+			h := []byte(s)
+			actual, err := Cost(h)
+			if err != nil {
+				t.Errorf("Cost, error: %s", err)
+				continue
+			}
+			if actual != cost {
+				t.Errorf("Cost, expected: %d, actual: %d", cost, actual)
+			}
+		}
+	}
+	_, err := Cost([]byte("$a$a$" + suffix))
+	if err == nil {
+		t.Errorf("Cost, malformed but no error returned")
+	}
+}
+
+func TestCostValidationInHash(t *testing.T) {
+	if testing.Short() {
+		return
+	}
+
+	pass := []byte("mypassword")
+
+	for c := 0; c < MinCost; c++ {
+		p, _ := newFromPassword(pass, c)
+		if p.cost != DefaultCost {
+			t.Errorf("newFromPassword should default costs below %d to %d, but was %d", MinCost, DefaultCost, p.cost)
+		}
+	}
+
+	p, _ := newFromPassword(pass, 14)
+	if p.cost != 14 {
+		t.Errorf("newFromPassword should default cost to 14, but was %d", p.cost)
+	}
+
+	hp, _ := newFromHash(p.Hash())
+	if p.cost != hp.cost {
+		t.Errorf("newFromHash should maintain the cost at %d, but was %d", p.cost, hp.cost)
+	}
+
+	_, err := newFromPassword(pass, 32)
+	if err == nil {
+		t.Fatalf("newFromPassword: should return a cost error")
+	}
+	if err != InvalidCostError(32) {
+		t.Errorf("newFromPassword: should return cost error, got %#v", err)
+	}
+}
+
+func TestCostReturnsWithLeadingZeroes(t *testing.T) {
+	hp, _ := newFromPassword([]byte("abcdefgh"), 7)
+	cost := hp.Hash()[4:7]
+	expected := []byte("07$")
+
+	if !bytes.Equal(expected, cost) {
+		t.Errorf("single digit costs in hash should have leading zeros: was %v instead of %v", cost, expected)
+	}
+}
+
+func TestMinorNotRequired(t *testing.T) {
+	noMinorHash := []byte("$2$10$XajjQvNhvvRt5GSeFk1xFeyqRrsxkhBkUiQeg0dt.wU1qD4aFDcga")
+	h, err := newFromHash(noMinorHash)
+	if err != nil {
+		t.Fatalf("No minor hash blew up: %s", err)
+	}
+	if h.minor != 0 {
+		t.Errorf("Should leave minor version at 0, but was %d", h.minor)
+	}
+
+	if !bytes.Equal(noMinorHash, h.Hash()) {
+		t.Errorf("Should generate hash %v, but created %v", noMinorHash, h.Hash())
+	}
+}
+
+func BenchmarkEqual(b *testing.B) {
+	b.StopTimer()
+	passwd := []byte("somepasswordyoulike")
+	hash, _ := GenerateFromPassword(passwd, 10)
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		CompareHashAndPassword(hash, passwd)
+	}
+}
+
+func BenchmarkGeneration(b *testing.B) {
+	b.StopTimer()
+	passwd := []byte("mylongpassword1234")
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		GenerateFromPassword(passwd, 10)
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.crypto/blowfish/block.go

@@ -0,0 +1,190 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package blowfish
+
+// ExpandKey performs a key expansion on the given *Cipher. Specifically, it
+// performs the Blowfish algorithm's key schedule which sets up the *Cipher's
+// pi and substitution tables for calls to Encrypt. This is used, primarily,
+// by the bcrypt package to reuse the Blowfish key schedule during its
+// set up. It's unlikely that you need to use this directly.
+func ExpandKey(key []byte, c *Cipher) {
+	j := 0
+	for i := 0; i < 18; i++ {
+		var d uint32
+		for k := 0; k < 4; k++ {
+			d = d<<8 | uint32(key[j])
+			j++
+			if j >= len(key) {
+				j = 0
+			}
+		}
+		c.p[i] ^= d
+	}
+
+	var l, r uint32
+	for i := 0; i < 18; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.p[i], c.p[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s0[i], c.s0[i+1] = l, r
+	}
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s1[i], c.s1[i+1] = l, r
+	}
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s2[i], c.s2[i+1] = l, r
+	}
+	for i := 0; i < 256; i += 2 {
+		l, r = encryptBlock(l, r, c)
+		c.s3[i], c.s3[i+1] = l, r
+	}
+}
+
+// This is similar to ExpandKey, but folds the salt during the key
+// schedule. While ExpandKey is essentially expandKeyWithSalt with an all-zero
+// salt passed in, reusing ExpandKey turns out to be a place of inefficiency
+// and specializing it here is useful.
+func expandKeyWithSalt(key []byte, salt []byte, c *Cipher) {
+	j := 0
+	for i := 0; i < 18; i++ {
+		var d uint32
+		for k := 0; k < 4; k++ {
+			d = d<<8 | uint32(key[j])
+			j++
+			if j >= len(key) {
+				j = 0
+			}
+		}
+		c.p[i] ^= d
+	}
+
+	j = 0
+	var expandedSalt [4]uint32
+	for i := range expandedSalt {
+		var d uint32
+		for k := 0; k < 4; k++ {
+			d = d<<8 | uint32(salt[j])
+			j++
+			if j >= len(salt) {
+				j = 0
+			}
+		}
+		expandedSalt[i] = d
+	}
+
+	var l, r uint32
+	for i := 0; i < 18; i += 2 {
+		l ^= expandedSalt[i&2]
+		r ^= expandedSalt[(i&2)+1]
+		l, r = encryptBlock(l, r, c)
+		c.p[i], c.p[i+1] = l, r
+	}
+
+	for i := 0; i < 256; i += 4 {
+		l ^= expandedSalt[2]
+		r ^= expandedSalt[3]
+		l, r = encryptBlock(l, r, c)
+		c.s0[i], c.s0[i+1] = l, r
+
+		l ^= expandedSalt[0]
+		r ^= expandedSalt[1]
+		l, r = encryptBlock(l, r, c)
+		c.s0[i+2], c.s0[i+3] = l, r
+
+	}
+
+	for i := 0; i < 256; i += 4 {
+		l ^= expandedSalt[2]
+		r ^= expandedSalt[3]
+		l, r = encryptBlock(l, r, c)
+		c.s1[i], c.s1[i+1] = l, r
+
+		l ^= expandedSalt[0]
+		r ^= expandedSalt[1]
+		l, r = encryptBlock(l, r, c)
+		c.s1[i+2], c.s1[i+3] = l, r
+	}
+
+	for i := 0; i < 256; i += 4 {
+		l ^= expandedSalt[2]
+		r ^= expandedSalt[3]
+		l, r = encryptBlock(l, r, c)
+		c.s2[i], c.s2[i+1] = l, r
+
+		l ^= expandedSalt[0]
+		r ^= expandedSalt[1]
+		l, r = encryptBlock(l, r, c)
+		c.s2[i+2], c.s2[i+3] = l, r
+	}
+
+	for i := 0; i < 256; i += 4 {
+		l ^= expandedSalt[2]
+		r ^= expandedSalt[3]
+		l, r = encryptBlock(l, r, c)
+		c.s3[i], c.s3[i+1] = l, r
+
+		l ^= expandedSalt[0]
+		r ^= expandedSalt[1]
+		l, r = encryptBlock(l, r, c)
+		c.s3[i+2], c.s3[i+3] = l, r
+	}
+}
+
+func encryptBlock(l, r uint32, c *Cipher) (uint32, uint32) {
+	xl, xr := l, r
+	xl ^= c.p[0]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[1]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[2]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[3]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[4]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[5]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[6]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[7]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[8]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[9]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[10]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[11]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[12]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[13]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[14]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[15]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[16]
+	xr ^= c.p[17]
+	return xr, xl
+}
+
+func decryptBlock(l, r uint32, c *Cipher) (uint32, uint32) {
+	xl, xr := l, r
+	xl ^= c.p[17]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[16]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[15]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[14]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[13]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[12]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[11]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[10]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[9]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[8]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[7]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[6]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[5]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[4]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[3]
+	xr ^= ((c.s0[byte(xl>>24)] + c.s1[byte(xl>>16)]) ^ c.s2[byte(xl>>8)]) + c.s3[byte(xl)] ^ c.p[2]
+	xl ^= ((c.s0[byte(xr>>24)] + c.s1[byte(xr>>16)]) ^ c.s2[byte(xr>>8)]) + c.s3[byte(xr)] ^ c.p[1]
+	xr ^= c.p[0]
+	return xr, xl
+}
+
+func zero(x []uint32) {
+	for i := range x {
+		x[i] = 0
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.crypto/blowfish/blowfish_test.go

@@ -0,0 +1,210 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package blowfish
+
+import (
+	"testing"
+)
+
+type CryptTest struct {
+	key []byte
+	in  []byte
+	out []byte
+}
+
+// Test vector values are from http://www.schneier.com/code/vectors.txt.
+var encryptTests = []CryptTest{
+	{
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78}},
+	{
+		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
+		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
+		[]byte{0x51, 0x86, 0x6F, 0xD5, 0xB8, 0x5E, 0xCB, 0x8A}},
+	{
+		[]byte{0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
+		[]byte{0x7D, 0x85, 0x6F, 0x9A, 0x61, 0x30, 0x63, 0xF2}},
+	{
+		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
+		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
+		[]byte{0x24, 0x66, 0xDD, 0x87, 0x8B, 0x96, 0x3C, 0x9D}},
+
+	{
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
+		[]byte{0x61, 0xF9, 0xC3, 0x80, 0x22, 0x81, 0xB0, 0x96}},
+	{
+		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0x7D, 0x0C, 0xC6, 0x30, 0xAF, 0xDA, 0x1E, 0xC7}},
+	{
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78}},
+	{
+		[]byte{0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10},
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0x0A, 0xCE, 0xAB, 0x0F, 0xC6, 0xA0, 0xA2, 0x8D}},
+	{
+		[]byte{0x7C, 0xA1, 0x10, 0x45, 0x4A, 0x1A, 0x6E, 0x57},
+		[]byte{0x01, 0xA1, 0xD6, 0xD0, 0x39, 0x77, 0x67, 0x42},
+		[]byte{0x59, 0xC6, 0x82, 0x45, 0xEB, 0x05, 0x28, 0x2B}},
+	{
+		[]byte{0x01, 0x31, 0xD9, 0x61, 0x9D, 0xC1, 0x37, 0x6E},
+		[]byte{0x5C, 0xD5, 0x4C, 0xA8, 0x3D, 0xEF, 0x57, 0xDA},
+		[]byte{0xB1, 0xB8, 0xCC, 0x0B, 0x25, 0x0F, 0x09, 0xA0}},
+	{
+		[]byte{0x07, 0xA1, 0x13, 0x3E, 0x4A, 0x0B, 0x26, 0x86},
+		[]byte{0x02, 0x48, 0xD4, 0x38, 0x06, 0xF6, 0x71, 0x72},
+		[]byte{0x17, 0x30, 0xE5, 0x77, 0x8B, 0xEA, 0x1D, 0xA4}},
+	{
+		[]byte{0x38, 0x49, 0x67, 0x4C, 0x26, 0x02, 0x31, 0x9E},
+		[]byte{0x51, 0x45, 0x4B, 0x58, 0x2D, 0xDF, 0x44, 0x0A},
+		[]byte{0xA2, 0x5E, 0x78, 0x56, 0xCF, 0x26, 0x51, 0xEB}},
+	{
+		[]byte{0x04, 0xB9, 0x15, 0xBA, 0x43, 0xFE, 0xB5, 0xB6},
+		[]byte{0x42, 0xFD, 0x44, 0x30, 0x59, 0x57, 0x7F, 0xA2},
+		[]byte{0x35, 0x38, 0x82, 0xB1, 0x09, 0xCE, 0x8F, 0x1A}},
+	{
+		[]byte{0x01, 0x13, 0xB9, 0x70, 0xFD, 0x34, 0xF2, 0xCE},
+		[]byte{0x05, 0x9B, 0x5E, 0x08, 0x51, 0xCF, 0x14, 0x3A},
+		[]byte{0x48, 0xF4, 0xD0, 0x88, 0x4C, 0x37, 0x99, 0x18}},
+	{
+		[]byte{0x01, 0x70, 0xF1, 0x75, 0x46, 0x8F, 0xB5, 0xE6},
+		[]byte{0x07, 0x56, 0xD8, 0xE0, 0x77, 0x47, 0x61, 0xD2},
+		[]byte{0x43, 0x21, 0x93, 0xB7, 0x89, 0x51, 0xFC, 0x98}},
+	{
+		[]byte{0x43, 0x29, 0x7F, 0xAD, 0x38, 0xE3, 0x73, 0xFE},
+		[]byte{0x76, 0x25, 0x14, 0xB8, 0x29, 0xBF, 0x48, 0x6A},
+		[]byte{0x13, 0xF0, 0x41, 0x54, 0xD6, 0x9D, 0x1A, 0xE5}},
+	{
+		[]byte{0x07, 0xA7, 0x13, 0x70, 0x45, 0xDA, 0x2A, 0x16},
+		[]byte{0x3B, 0xDD, 0x11, 0x90, 0x49, 0x37, 0x28, 0x02},
+		[]byte{0x2E, 0xED, 0xDA, 0x93, 0xFF, 0xD3, 0x9C, 0x79}},
+	{
+		[]byte{0x04, 0x68, 0x91, 0x04, 0xC2, 0xFD, 0x3B, 0x2F},
+		[]byte{0x26, 0x95, 0x5F, 0x68, 0x35, 0xAF, 0x60, 0x9A},
+		[]byte{0xD8, 0x87, 0xE0, 0x39, 0x3C, 0x2D, 0xA6, 0xE3}},
+	{
+		[]byte{0x37, 0xD0, 0x6B, 0xB5, 0x16, 0xCB, 0x75, 0x46},
+		[]byte{0x16, 0x4D, 0x5E, 0x40, 0x4F, 0x27, 0x52, 0x32},
+		[]byte{0x5F, 0x99, 0xD0, 0x4F, 0x5B, 0x16, 0x39, 0x69}},
+	{
+		[]byte{0x1F, 0x08, 0x26, 0x0D, 0x1A, 0xC2, 0x46, 0x5E},
+		[]byte{0x6B, 0x05, 0x6E, 0x18, 0x75, 0x9F, 0x5C, 0xCA},
+		[]byte{0x4A, 0x05, 0x7A, 0x3B, 0x24, 0xD3, 0x97, 0x7B}},
+	{
+		[]byte{0x58, 0x40, 0x23, 0x64, 0x1A, 0xBA, 0x61, 0x76},
+		[]byte{0x00, 0x4B, 0xD6, 0xEF, 0x09, 0x17, 0x60, 0x62},
+		[]byte{0x45, 0x20, 0x31, 0xC1, 0xE4, 0xFA, 0xDA, 0x8E}},
+	{
+		[]byte{0x02, 0x58, 0x16, 0x16, 0x46, 0x29, 0xB0, 0x07},
+		[]byte{0x48, 0x0D, 0x39, 0x00, 0x6E, 0xE7, 0x62, 0xF2},
+		[]byte{0x75, 0x55, 0xAE, 0x39, 0xF5, 0x9B, 0x87, 0xBD}},
+	{
+		[]byte{0x49, 0x79, 0x3E, 0xBC, 0x79, 0xB3, 0x25, 0x8F},
+		[]byte{0x43, 0x75, 0x40, 0xC8, 0x69, 0x8F, 0x3C, 0xFA},
+		[]byte{0x53, 0xC5, 0x5F, 0x9C, 0xB4, 0x9F, 0xC0, 0x19}},
+	{
+		[]byte{0x4F, 0xB0, 0x5E, 0x15, 0x15, 0xAB, 0x73, 0xA7},
+		[]byte{0x07, 0x2D, 0x43, 0xA0, 0x77, 0x07, 0x52, 0x92},
+		[]byte{0x7A, 0x8E, 0x7B, 0xFA, 0x93, 0x7E, 0x89, 0xA3}},
+	{
+		[]byte{0x49, 0xE9, 0x5D, 0x6D, 0x4C, 0xA2, 0x29, 0xBF},
+		[]byte{0x02, 0xFE, 0x55, 0x77, 0x81, 0x17, 0xF1, 0x2A},
+		[]byte{0xCF, 0x9C, 0x5D, 0x7A, 0x49, 0x86, 0xAD, 0xB5}},
+	{
+		[]byte{0x01, 0x83, 0x10, 0xDC, 0x40, 0x9B, 0x26, 0xD6},
+		[]byte{0x1D, 0x9D, 0x5C, 0x50, 0x18, 0xF7, 0x28, 0xC2},
+		[]byte{0xD1, 0xAB, 0xB2, 0x90, 0x65, 0x8B, 0xC7, 0x78}},
+	{
+		[]byte{0x1C, 0x58, 0x7F, 0x1C, 0x13, 0x92, 0x4F, 0xEF},
+		[]byte{0x30, 0x55, 0x32, 0x28, 0x6D, 0x6F, 0x29, 0x5A},
+		[]byte{0x55, 0xCB, 0x37, 0x74, 0xD1, 0x3E, 0xF2, 0x01}},
+	{
+		[]byte{0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01},
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0xFA, 0x34, 0xEC, 0x48, 0x47, 0xB2, 0x68, 0xB2}},
+	{
+		[]byte{0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E},
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0xA7, 0x90, 0x79, 0x51, 0x08, 0xEA, 0x3C, 0xAE}},
+	{
+		[]byte{0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE},
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0xC3, 0x9E, 0x07, 0x2D, 0x9F, 0xAC, 0x63, 0x1D}},
+	{
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
+		[]byte{0x01, 0x49, 0x33, 0xE0, 0xCD, 0xAF, 0xF6, 0xE4}},
+	{
+		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0xF2, 0x1E, 0x9A, 0x77, 0xB7, 0x1C, 0x49, 0xBC}},
+	{
+		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
+		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+		[]byte{0x24, 0x59, 0x46, 0x88, 0x57, 0x54, 0x36, 0x9A}},
+	{
+		[]byte{0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10},
+		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
+		[]byte{0x6B, 0x5C, 0x5A, 0x9C, 0x5D, 0x9E, 0x0A, 0x5A}},
+}
+
+func TestCipherEncrypt(t *testing.T) {
+	for i, tt := range encryptTests {
+		c, err := NewCipher(tt.key)
+		if err != nil {
+			t.Errorf("NewCipher(%d bytes) = %s", len(tt.key), err)
+			continue
+		}
+		ct := make([]byte, len(tt.out))
+		c.Encrypt(ct, tt.in)
+		for j, v := range ct {
+			if v != tt.out[j] {
+				t.Errorf("Cipher.Encrypt, test vector #%d: cipher-text[%d] = %#x, expected %#x", i, j, v, tt.out[j])
+				break
+			}
+		}
+	}
+}
+
+func TestCipherDecrypt(t *testing.T) {
+	for i, tt := range encryptTests {
+		c, err := NewCipher(tt.key)
+		if err != nil {
+			t.Errorf("NewCipher(%d bytes) = %s", len(tt.key), err)
+			continue
+		}
+		pt := make([]byte, len(tt.in))
+		c.Decrypt(pt, tt.out)
+		for j, v := range pt {
+			if v != tt.in[j] {
+				t.Errorf("Cipher.Decrypt, test vector #%d: plain-text[%d] = %#x, expected %#x", i, j, v, tt.in[j])
+				break
+			}
+		}
+	}
+}
+
+func TestSaltedCipherKeyLength(t *testing.T) {
+	var key []byte
+	for i := 0; i < 4; i++ {
+		_, err := NewSaltedCipher(key, []byte{'a'})
+		if err != KeySizeError(i) {
+			t.Errorf("NewSaltedCipher with short key, gave error %#v, expected %#v", err, KeySizeError(i))
+		}
+		key = append(key, 'a')
+	}
+
+	// A 57-byte key. One over the typical blowfish restriction.
+	key = []byte("012345678901234567890123456789012345678901234567890123456")
+	_, err := NewSaltedCipher(key, []byte{'a'})
+	if err != nil {
+		t.Errorf("NewSaltedCipher with long key, gave error %#v", err)
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.crypto/blowfish/cipher.go

@@ -0,0 +1,90 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package blowfish implements Bruce Schneier's Blowfish encryption algorithm.
+package blowfish
+
+// The code is a port of Bruce Schneier's C implementation.
+// See http://www.schneier.com/blowfish.html.
+
+import "strconv"
+
+// The Blowfish block size in bytes.
+const BlockSize = 8
+
+// A Cipher is an instance of Blowfish encryption using a particular key.
+type Cipher struct {
+	p              [18]uint32
+	s0, s1, s2, s3 [256]uint32
+}
+
+type KeySizeError int
+
+func (k KeySizeError) Error() string {
+	return "crypto/blowfish: invalid key size " + strconv.Itoa(int(k))
+}
+
+// NewCipher creates and returns a Cipher.
+// The key argument should be the Blowfish key, 4 to 56 bytes.
+func NewCipher(key []byte) (*Cipher, error) {
+	var result Cipher
+	k := len(key)
+	if k < 4 || k > 56 {
+		return nil, KeySizeError(k)
+	}
+	initCipher(key, &result)
+	ExpandKey(key, &result)
+	return &result, nil
+}
+
+// NewSaltedCipher creates a returns a Cipher that folds a salt into its key
+// schedule. For most purposes, NewCipher, instead of NewSaltedCipher, is
+// sufficient and desirable. For bcrypt compatiblity, the key can be over 56
+// bytes. Only the first 16 bytes of salt are used.
+func NewSaltedCipher(key, salt []byte) (*Cipher, error) {
+	var result Cipher
+	k := len(key)
+	if k < 4 {
+		return nil, KeySizeError(k)
+	}
+	initCipher(key, &result)
+	expandKeyWithSalt(key, salt, &result)
+	return &result, nil
+}
+
+// BlockSize returns the Blowfish block size, 8 bytes.
+// It is necessary to satisfy the Block interface in the
+// package "crypto/cipher".
+func (c *Cipher) BlockSize() int { return BlockSize }
+
+// Encrypt encrypts the 8-byte buffer src using the key k
+// and stores the result in dst.
+// Note that for amounts of data larger than a block,
+// it is not safe to just call Encrypt on successive blocks;
+// instead, use an encryption mode like CBC (see crypto/cipher/cbc.go).
+func (c *Cipher) Encrypt(dst, src []byte) {
+	l := uint32(src[0])<<24 | uint32(src[1])<<16 | uint32(src[2])<<8 | uint32(src[3])
+	r := uint32(src[4])<<24 | uint32(src[5])<<16 | uint32(src[6])<<8 | uint32(src[7])
+	l, r = encryptBlock(l, r, c)
+	dst[0], dst[1], dst[2], dst[3] = byte(l>>24), byte(l>>16), byte(l>>8), byte(l)
+	dst[4], dst[5], dst[6], dst[7] = byte(r>>24), byte(r>>16), byte(r>>8), byte(r)
+}
+
+// Decrypt decrypts the 8-byte buffer src using the key k
+// and stores the result in dst.
+func (c *Cipher) Decrypt(dst, src []byte) {
+	l := uint32(src[0])<<24 | uint32(src[1])<<16 | uint32(src[2])<<8 | uint32(src[3])
+	r := uint32(src[4])<<24 | uint32(src[5])<<16 | uint32(src[6])<<8 | uint32(src[7])
+	l, r = decryptBlock(l, r, c)
+	dst[0], dst[1], dst[2], dst[3] = byte(l>>24), byte(l>>16), byte(l>>8), byte(l)
+	dst[4], dst[5], dst[6], dst[7] = byte(r>>24), byte(r>>16), byte(r>>8), byte(r)
+}
+
+func initCipher(key []byte, c *Cipher) {
+	copy(c.p[0:], p[0:])
+	copy(c.s0[0:], s0[0:])
+	copy(c.s1[0:], s1[0:])
+	copy(c.s2[0:], s2[0:])
+	copy(c.s3[0:], s3[0:])
+}

Godeps/_workspace/src/code.google.com/p/go.crypto/blowfish/const.go

@@ -0,0 +1,199 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// The startup permutation array and substitution boxes.
+// They are the hexadecimal digits of PI; see:
+// http://www.schneier.com/code/constants.txt.
+
+package blowfish
+
+var s0 = [256]uint32{
+	0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, 0xb8e1afed, 0x6a267e96,
+	0xba7c9045, 0xf12c7f99, 0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
+	0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e, 0x0d95748f, 0x728eb658,
+	0x718bcd58, 0x82154aee, 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
+	0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, 0x8e79dcb0, 0x603a180e,
+	0x6c9e0e8b, 0xb01e8a3e, 0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
+	0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440, 0x55ca396a, 0x2aab10b6,
+	0xb4cc5c34, 0x1141e8ce, 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
+	0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, 0xafd6ba33, 0x6c24cf5c,
+	0x7a325381, 0x28958677, 0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
+	0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032, 0xef845d5d, 0xe98575b1,
+	0xdc262302, 0xeb651b88, 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
+	0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, 0x21c66842, 0xf6e96c9a,
+	0x670c9c61, 0xabd388f0, 0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
+	0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98, 0xa1f1651d, 0x39af0176,
+	0x66ca593e, 0x82430e88, 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
+	0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, 0x4ed3aa62, 0x363f7706,
+	0x1bfedf72, 0x429b023d, 0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
+	0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7, 0xe3fe501a, 0xb6794c3b,
+	0x976ce0bd, 0x04c006ba, 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
+	0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, 0x6dfc511f, 0x9b30952c,
+	0xcc814544, 0xaf5ebd09, 0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
+	0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb, 0x5579c0bd, 0x1a60320a,
+	0xd6a100c6, 0x402c7279, 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
+	0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, 0x323db5fa, 0xfd238760,
+	0x53317b48, 0x3e00df82, 0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
+	0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573, 0x695b27b0, 0xbbca58c8,
+	0xe1ffa35d, 0xb8f011a0, 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
+	0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, 0xe1ddf2da, 0xa4cb7e33,
+	0x62fb1341, 0xcee4c6e8, 0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
+	0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0, 0xd08ed1d0, 0xafc725e0,
+	0x8e3c5b2f, 0x8e7594b7, 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
+	0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, 0x2f2f2218, 0xbe0e1777,
+	0xea752dfe, 0x8b021fa1, 0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
+	0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9, 0x165fa266, 0x80957705,
+	0x93cc7314, 0x211a1477, 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
+	0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, 0x00250e2d, 0x2071b35e,
+	0x226800bb, 0x57b8e0af, 0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
+	0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5, 0x83260376, 0x6295cfa9,
+	0x11c81968, 0x4e734a41, 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
+	0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, 0x08ba6fb5, 0x571be91f,
+	0xf296ec6b, 0x2a0dd915, 0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
+	0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a,
+}
+
+var s1 = [256]uint32{
+	0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, 0xad6ea6b0, 0x49a7df7d,
+	0x9cee60b8, 0x8fedb266, 0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
+	0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e, 0x3f54989a, 0x5b429d65,
+	0x6b8fe4d6, 0x99f73fd6, 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
+	0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, 0x09686b3f, 0x3ebaefc9,
+	0x3c971814, 0x6b6a70a1, 0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
+	0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8, 0xb03ada37, 0xf0500c0d,
+	0xf01c1f04, 0x0200b3ff, 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
+	0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc,
+	0xc8b57634, 0x9af3dda7, 0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
+	0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331, 0x4e548b38, 0x4f6db908,
+	0x6f420d03, 0xf60a04bf, 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
+	0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, 0x5512721f, 0x2e6b7124,
+	0x501adde6, 0x9f84cd87, 0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
+	0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2, 0xef1c1847, 0x3215d908,
+	0xdd433b37, 0x24c2ba16, 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
+	0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, 0x043556f1, 0xd7a3c76b,
+	0x3c11183b, 0x5924a509, 0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
+	0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3, 0x771fe71c, 0x4e3d06fa,
+	0x2965dcb9, 0x99e71d0f, 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
+	0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, 0xf2f74ea7, 0x361d2b3d,
+	0x1939260f, 0x19c27960, 0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
+	0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28, 0xc332ddef, 0xbe6c5aa5,
+	0x65582185, 0x68ab9802, 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
+	0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, 0x13cca830, 0xeb61bd96,
+	0x0334fe1e, 0xaa0363cf, 0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
+	0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e, 0x648b1eaf, 0x19bdf0ca,
+	0xa02369b9, 0x655abb50, 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
+	0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, 0xf837889a, 0x97e32d77,
+	0x11ed935f, 0x16681281, 0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
+	0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696, 0xcdb30aeb, 0x532e3054,
+	0x8fd948e4, 0x6dbc3128, 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
+	0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, 0x45eee2b6, 0xa3aaabea,
+	0xdb6c4f15, 0xfacb4fd0, 0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
+	0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250, 0xcf62a1f2, 0x5b8d2646,
+	0xfc8883a0, 0xc1c7b6a3, 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
+	0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, 0x58428d2a, 0x0c55f5ea,
+	0x1dadf43e, 0x233f7061, 0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
+	0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e, 0xa6078084, 0x19f8509e,
+	0xe8efd855, 0x61d99735, 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
+	0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, 0xdb73dbd3, 0x105588cd,
+	0x675fda79, 0xe3674340, 0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
+	0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7,
+}
+
+var s2 = [256]uint32{
+	0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, 0x411520f7, 0x7602d4f7,
+	0xbcf46b2e, 0xd4a20068, 0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
+	0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840, 0x4d95fc1d, 0x96b591af,
+	0x70f4ddd3, 0x66a02f45, 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
+	0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, 0x28507825, 0x530429f4,
+	0x0a2c86da, 0xe9b66dfb, 0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
+	0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6, 0xaace1e7c, 0xd3375fec,
+	0xce78a399, 0x406b2a42, 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
+	0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, 0x3a6efa74, 0xdd5b4332,
+	0x6841e7f7, 0xca7820fb, 0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
+	0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b, 0x55a867bc, 0xa1159a58,
+	0xcca92963, 0x99e1db33, 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
+	0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, 0x95c11548, 0xe4c66d22,
+	0x48c1133f, 0xc70f86dc, 0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
+	0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564, 0x257b7834, 0x602a9c60,
+	0xdff8e8a3, 0x1f636c1b, 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
+	0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, 0x85b2a20e, 0xe6ba0d99,
+	0xde720c8c, 0x2da2f728, 0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
+	0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e, 0x0a476341, 0x992eff74,
+	0x3a6f6eab, 0xf4f8fd37, 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
+	0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, 0xf1290dc7, 0xcc00ffa3,
+	0xb5390f92, 0x690fed0b, 0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
+	0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb, 0x37392eb3, 0xcc115979,
+	0x8026e297, 0xf42e312d, 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
+	0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, 0x1a6b1018, 0x11caedfa,
+	0x3d25bdd8, 0xe2e1c3c9, 0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
+	0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe, 0x9dbc8057, 0xf0f7c086,
+	0x60787bf8, 0x6003604d, 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
+	0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, 0x77a057be, 0xbde8ae24,
+	0x55464299, 0xbf582e61, 0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
+	0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9, 0x7aeb2661, 0x8b1ddf84,
+	0x846a0e79, 0x915f95e2, 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
+	0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, 0xb77f19b6, 0xe0a9dc09,
+	0x662d09a1, 0xc4324633, 0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
+	0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169, 0xdcb7da83, 0x573906fe,
+	0xa1e2ce9b, 0x4fcd7f52, 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
+	0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, 0xf0177a28, 0xc0f586e0,
+	0x006058aa, 0x30dc7d62, 0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
+	0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76, 0x6f05e409, 0x4b7c0188,
+	0x39720a3d, 0x7c927c24, 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
+	0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, 0x1e50ef5e, 0xb161e6f8,
+	0xa28514d9, 0x6c51133c, 0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
+	0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0,
+}
+
+var s3 = [256]uint32{
+	0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, 0x5cb0679e, 0x4fa33742,
+	0xd3822740, 0x99bc9bbe, 0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
+	0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4, 0x5748ab2f, 0xbc946e79,
+	0xc6a376d2, 0x6549c2c8, 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
+	0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, 0xa1fad5f0, 0x6a2d519a,
+	0x63ef8ce2, 0x9a86ee22, 0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
+	0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6, 0x2826a2f9, 0xa73a3ae1,
+	0x4ba99586, 0xef5562e9, 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
+	0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, 0xe990fd5a, 0x9e34d797,
+	0x2cf0b7d9, 0x022b8b51, 0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
+	0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c, 0xe029ac71, 0xe019a5e6,
+	0x47b0acfd, 0xed93fa9b, 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
+	0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, 0x15056dd4, 0x88f46dba,
+	0x03a16125, 0x0564f0bd, 0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
+	0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319, 0x7533d928, 0xb155fdf5,
+	0x03563482, 0x8aba3cbb, 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
+	0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, 0xea7a90c2, 0xfb3e7bce,
+	0x5121ce64, 0x774fbe32, 0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
+	0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166, 0xb39a460a, 0x6445c0dd,
+	0x586cdecf, 0x1c20c8ae, 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
+	0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, 0x72eacea8, 0xfa6484bb,
+	0x8d6612ae, 0xbf3c6f47, 0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
+	0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d, 0x4040cb08, 0x4eb4e2cc,
+	0x34d2466a, 0x0115af84, 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
+	0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, 0x611560b1, 0xe7933fdc,
+	0xbb3a792b, 0x344525bd, 0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
+	0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7, 0x1a908749, 0xd44fbd9a,
+	0xd0dadecb, 0xd50ada38, 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
+	0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, 0xbf97222c, 0x15e6fc2a,
+	0x0f91fc71, 0x9b941525, 0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
+	0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442, 0xe0ec6e0e, 0x1698db3b,
+	0x4c98a0be, 0x3278e964, 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
+	0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, 0xdf359f8d, 0x9b992f2e,
+	0xe60b6f47, 0x0fe3f11d, 0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
+	0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299, 0xf523f357, 0xa6327623,
+	0x93a83531, 0x56cccd02, 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
+	0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, 0xe6c6c7bd, 0x327a140a,
+	0x45e1d006, 0xc3f27b9a, 0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
+	0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b, 0x53113ec0, 0x1640e3d3,
+	0x38abbd60, 0x2547adf0, 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
+	0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, 0x1948c25c, 0x02fb8a8c,
+	0x01c36ae4, 0xd6ebe1f9, 0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
+	0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6,
+}
+
+var p = [18]uint32{
+	0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822, 0x299f31d0,
+	0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
+	0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, 0x9216d5d9, 0x8979fb1b,
+}

Godeps/_workspace/src/code.google.com/p/go.text/transform/examples_test.go

@@ -0,0 +1,37 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package transform_test
+
+import (
+	"fmt"
+	"unicode"
+
+	"code.google.com/p/go.text/transform"
+	"code.google.com/p/go.text/unicode/norm"
+)
+
+func ExampleRemoveFunc() {
+	input := []byte(`tschüß; до свидания`)
+
+	b := make([]byte, len(input))
+
+	t := transform.RemoveFunc(unicode.IsSpace)
+	n, _, _ := t.Transform(b, input, true)
+	fmt.Println(string(b[:n]))
+
+	t = transform.RemoveFunc(func(r rune) bool {
+		return !unicode.Is(unicode.Latin, r)
+	})
+	n, _, _ = t.Transform(b, input, true)
+	fmt.Println(string(b[:n]))
+
+	n, _, _ = t.Transform(b, norm.NFD.Bytes(input), true)
+	fmt.Println(string(b[:n]))
+
+	// Output:
+	// tschüß;досвидания
+	// tschüß
+	// tschuß
+}

Godeps/_workspace/src/code.google.com/p/go.text/transform/transform.go

@@ -0,0 +1,496 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package transform provides reader and writer wrappers that transform the
+// bytes passing through as well as various transformations. Example
+// transformations provided by other packages include normalization and
+// conversion between character sets.
+package transform
+
+import (
+	"errors"
+	"io"
+	"unicode/utf8"
+)
+
+var (
+	// ErrShortDst means that the destination buffer was too short to
+	// receive all of the transformed bytes.
+	ErrShortDst = errors.New("transform: short destination buffer")
+
+	// ErrShortSrc means that the source buffer has insufficient data to
+	// complete the transformation.
+	ErrShortSrc = errors.New("transform: short source buffer")
+
+	// errInconsistentByteCount means that Transform returned success (nil
+	// error) but also returned nSrc inconsistent with the src argument.
+	errInconsistentByteCount = errors.New("transform: inconsistent byte count returned")
+
+	// errShortInternal means that an internal buffer is not large enough
+	// to make progress and the Transform operation must be aborted.
+	errShortInternal = errors.New("transform: short internal buffer")
+)
+
+// Transformer transforms bytes.
+type Transformer interface {
+	// Transform writes to dst the transformed bytes read from src, and
+	// returns the number of dst bytes written and src bytes read. The
+	// atEOF argument tells whether src represents the last bytes of the
+	// input.
+	//
+	// Callers should always process the nDst bytes produced and account
+	// for the nSrc bytes consumed before considering the error err.
+	//
+	// A nil error means that all of the transformed bytes (whether freshly
+	// transformed from src or left over from previous Transform calls)
+	// were written to dst. A nil error can be returned regardless of
+	// whether atEOF is true. If err is nil then nSrc must equal len(src);
+	// the converse is not necessarily true.
+	//
+	// ErrShortDst means that dst was too short to receive all of the
+	// transformed bytes. ErrShortSrc means that src had insufficient data
+	// to complete the transformation. If both conditions apply, then
+	// either error may be returned. Other than the error conditions listed
+	// here, implementations are free to report other errors that arise.
+	Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error)
+}
+
+// TODO: Do we require that a Transformer be reusable if it returns a nil error
+// or do we always require a reset after use?  Is Reset mandatory or optional?
+
+// Reader wraps another io.Reader by transforming the bytes read.
+type Reader struct {
+	r   io.Reader
+	t   Transformer
+	err error
+
+	// dst[dst0:dst1] contains bytes that have been transformed by t but
+	// not yet copied out via Read.
+	dst        []byte
+	dst0, dst1 int
+
+	// src[src0:src1] contains bytes that have been read from r but not
+	// yet transformed through t.
+	src        []byte
+	src0, src1 int
+
+	// transformComplete is whether the transformation is complete,
+	// regardless of whether or not it was successful.
+	transformComplete bool
+}
+
+const defaultBufSize = 4096
+
+// NewReader returns a new Reader that wraps r by transforming the bytes read
+// via t.
+func NewReader(r io.Reader, t Transformer) *Reader {
+	return &Reader{
+		r:   r,
+		t:   t,
+		dst: make([]byte, defaultBufSize),
+		src: make([]byte, defaultBufSize),
+	}
+}
+
+// Read implements the io.Reader interface.
+func (r *Reader) Read(p []byte) (int, error) {
+	n, err := 0, error(nil)
+	for {
+		// Copy out any transformed bytes and return the final error if we are done.
+		if r.dst0 != r.dst1 {
+			n = copy(p, r.dst[r.dst0:r.dst1])
+			r.dst0 += n
+			if r.dst0 == r.dst1 && r.transformComplete {
+				return n, r.err
+			}
+			return n, nil
+		} else if r.transformComplete {
+			return 0, r.err
+		}
+
+		// Try to transform some source bytes, or to flush the transformer if we
+		// are out of source bytes. We do this even if r.r.Read returned an error.
+		// As the io.Reader documentation says, "process the n > 0 bytes returned
+		// before considering the error".
+		if r.src0 != r.src1 || r.err != nil {
+			r.dst0 = 0
+			r.dst1, n, err = r.t.Transform(r.dst, r.src[r.src0:r.src1], r.err == io.EOF)
+			r.src0 += n
+
+			switch {
+			case err == nil:
+				if r.src0 != r.src1 {
+					r.err = errInconsistentByteCount
+				}
+				// The Transform call was successful; we are complete if we
+				// cannot read more bytes into src.
+				r.transformComplete = r.err != nil
+				continue
+			case err == ErrShortDst && r.dst1 != 0:
+				// Make room in dst by copying out, and try again.
+				continue
+			case err == ErrShortSrc && r.src1-r.src0 != len(r.src) && r.err == nil:
+				// Read more bytes into src via the code below, and try again.
+			default:
+				r.transformComplete = true
+				// The reader error (r.err) takes precedence over the
+				// transformer error (err) unless r.err is nil or io.EOF.
+				if r.err == nil || r.err == io.EOF {
+					r.err = err
+				}
+				continue
+			}
+		}
+
+		// Move any untransformed source bytes to the start of the buffer
+		// and read more bytes.
+		if r.src0 != 0 {
+			r.src0, r.src1 = 0, copy(r.src, r.src[r.src0:r.src1])
+		}
+		n, r.err = r.r.Read(r.src[r.src1:])
+		r.src1 += n
+	}
+}
+
+// TODO: implement ReadByte (and ReadRune??).
+
+// Writer wraps another io.Writer by transforming the bytes read.
+// The user needs to call Close to flush unwritten bytes that may
+// be buffered.
+type Writer struct {
+	w   io.Writer
+	t   Transformer
+	dst []byte
+
+	// src[:n] contains bytes that have not yet passed through t.
+	src []byte
+	n   int
+}
+
+// NewWriter returns a new Writer that wraps w by transforming the bytes written
+// via t.
+func NewWriter(w io.Writer, t Transformer) *Writer {
+	return &Writer{
+		w:   w,
+		t:   t,
+		dst: make([]byte, defaultBufSize),
+		src: make([]byte, defaultBufSize),
+	}
+}
+
+// Write implements the io.Writer interface. If there are not enough
+// bytes available to complete a Transform, the bytes will be buffered
+// for the next write. Call Close to convert the remaining bytes.
+func (w *Writer) Write(data []byte) (n int, err error) {
+	src := data
+	if w.n > 0 {
+		// Append bytes from data to the last remainder.
+		// TODO: limit the amount copied on first try.
+		n = copy(w.src[w.n:], data)
+		w.n += n
+		src = w.src[:w.n]
+	}
+	for {
+		nDst, nSrc, err := w.t.Transform(w.dst, src, false)
+		if _, werr := w.w.Write(w.dst[:nDst]); werr != nil {
+			return n, werr
+		}
+		src = src[nSrc:]
+		if w.n > 0 && len(src) <= n {
+			// Enough bytes from w.src have been consumed. We make src point
+			// to data instead to reduce the copying.
+			w.n = 0
+			n -= len(src)
+			src = data[n:]
+			if n < len(data) && (err == nil || err == ErrShortSrc) {
+				continue
+			}
+		} else {
+			n += nSrc
+		}
+		switch {
+		case err == ErrShortDst && nDst > 0:
+		case err == ErrShortSrc && len(src) < len(w.src):
+			m := copy(w.src, src)
+			// If w.n > 0, bytes from data were already copied to w.src and n
+			// was already set to the number of bytes consumed.
+			if w.n == 0 {
+				n += m
+			}
+			w.n = m
+			return n, nil
+		case err == nil && w.n > 0:
+			return n, errInconsistentByteCount
+		default:
+			return n, err
+		}
+	}
+}
+
+// Close implements the io.Closer interface.
+func (w *Writer) Close() error {
+	for src := w.src[:w.n]; len(src) > 0; {
+		nDst, nSrc, err := w.t.Transform(w.dst, src, true)
+		if nDst == 0 {
+			return err
+		}
+		if _, werr := w.w.Write(w.dst[:nDst]); werr != nil {
+			return werr
+		}
+		if err != ErrShortDst {
+			return err
+		}
+		src = src[nSrc:]
+	}
+	return nil
+}
+
+type nop struct{}
+
+func (nop) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
+	n := copy(dst, src)
+	if n < len(src) {
+		err = ErrShortDst
+	}
+	return n, n, err
+}
+
+type discard struct{}
+
+func (discard) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
+	return 0, len(src), nil
+}
+
+var (
+	// Discard is a Transformer for which all Transform calls succeed
+	// by consuming all bytes and writing nothing.
+	Discard Transformer = discard{}
+
+	// Nop is a Transformer that copies src to dst.
+	Nop Transformer = nop{}
+)
+
+// chain is a sequence of links. A chain with N Transformers has N+1 links and
+// N+1 buffers. Of those N+1 buffers, the first and last are the src and dst
+// buffers given to chain.Transform and the middle N-1 buffers are intermediate
+// buffers owned by the chain. The i'th link transforms bytes from the i'th
+// buffer chain.link[i].b at read offset chain.link[i].p to the i+1'th buffer
+// chain.link[i+1].b at write offset chain.link[i+1].n, for i in [0, N).
+type chain struct {
+	link []link
+	err  error
+	// errStart is the index at which the error occurred plus 1. Processing
+	// errStart at this level at the next call to Transform. As long as
+	// errStart > 0, chain will not consume any more source bytes.
+	errStart int
+}
+
+func (c *chain) fatalError(errIndex int, err error) {
+	if i := errIndex + 1; i > c.errStart {
+		c.errStart = i
+		c.err = err
+	}
+}
+
+type link struct {
+	t Transformer
+	// b[p:n] holds the bytes to be transformed by t.
+	b []byte
+	p int
+	n int
+}
+
+func (l *link) src() []byte {
+	return l.b[l.p:l.n]
+}
+
+func (l *link) dst() []byte {
+	return l.b[l.n:]
+}
+
+// Chain returns a Transformer that applies t in sequence.
+func Chain(t ...Transformer) Transformer {
+	if len(t) == 0 {
+		return nop{}
+	}
+	c := &chain{link: make([]link, len(t)+1)}
+	for i, tt := range t {
+		c.link[i].t = tt
+	}
+	// Allocate intermediate buffers.
+	b := make([][defaultBufSize]byte, len(t)-1)
+	for i := range b {
+		c.link[i+1].b = b[i][:]
+	}
+	return c
+}
+
+// Transform applies the transformers of c in sequence.
+func (c *chain) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
+	// Set up src and dst in the chain.
+	srcL := &c.link[0]
+	dstL := &c.link[len(c.link)-1]
+	srcL.b, srcL.p, srcL.n = src, 0, len(src)
+	dstL.b, dstL.n = dst, 0
+	var lastFull, needProgress bool // for detecting progress
+
+	// i is the index of the next Transformer to apply, for i in [low, high].
+	// low is the lowest index for which c.link[low] may still produce bytes.
+	// high is the highest index for which c.link[high] has a Transformer.
+	// The error returned by Transform determines whether to increase or
+	// decrease i. We try to completely fill a buffer before converting it.
+	for low, i, high := c.errStart, c.errStart, len(c.link)-2; low <= i && i <= high; {
+		in, out := &c.link[i], &c.link[i+1]
+		nDst, nSrc, err0 := in.t.Transform(out.dst(), in.src(), atEOF && low == i)
+		out.n += nDst
+		in.p += nSrc
+		if i > 0 && in.p == in.n {
+			in.p, in.n = 0, 0
+		}
+		needProgress, lastFull = lastFull, false
+		switch err0 {
+		case ErrShortDst:
+			// Process the destination buffer next. Return if we are already
+			// at the high index.
+			if i == high {
+				return dstL.n, srcL.p, ErrShortDst
+			}
+			if out.n != 0 {
+				i++
+				// If the Transformer at the next index is not able to process any
+				// source bytes there is nothing that can be done to make progress
+				// and the bytes will remain unprocessed. lastFull is used to
+				// detect this and break out of the loop with a fatal error.
+				lastFull = true
+				continue
+			}
+			// The destination buffer was too small, but is completely empty.
+			// Return a fatal error as this transformation can never complete.
+			c.fatalError(i, errShortInternal)
+		case ErrShortSrc:
+			if i == 0 {
+				// Save ErrShortSrc in err. All other errors take precedence.
+				err = ErrShortSrc
+				break
+			}
+			// Source bytes were depleted before filling up the destination buffer.
+			// Verify we made some progress, move the remaining bytes to the errStart
+			// and try to get more source bytes.
+			if needProgress && nSrc == 0 || in.n-in.p == len(in.b) {
+				// There were not enough source bytes to proceed while the source
+				// buffer cannot hold any more bytes. Return a fatal error as this
+				// transformation can never complete.
+				c.fatalError(i, errShortInternal)
+				break
+			}
+			// in.b is an internal buffer and we can make progress.
+			in.p, in.n = 0, copy(in.b, in.src())
+			fallthrough
+		case nil:
+			// if i == low, we have depleted the bytes at index i or any lower levels.
+			// In that case we increase low and i. In all other cases we decrease i to
+			// fetch more bytes before proceeding to the next index.
+			if i > low {
+				i--
+				continue
+			}
+		default:
+			c.fatalError(i, err0)
+		}
+		// Exhausted level low or fatal error: increase low and continue
+		// to process the bytes accepted so far.
+		i++
+		low = i
+	}
+
+	// If c.errStart > 0, this means we found a fatal error.  We will clear
+	// all upstream buffers. At this point, no more progress can be made
+	// downstream, as Transform would have bailed while handling ErrShortDst.
+	if c.errStart > 0 {
+		for i := 1; i < c.errStart; i++ {
+			c.link[i].p, c.link[i].n = 0, 0
+		}
+		err, c.errStart, c.err = c.err, 0, nil
+	}
+	return dstL.n, srcL.p, err
+}
+
+// RemoveFunc returns a Transformer that removes from the input all runes r for
+// which f(r) is true. Illegal bytes in the input are replaced by RuneError.
+func RemoveFunc(f func(r rune) bool) Transformer {
+	return removeF(f)
+}
+
+type removeF func(r rune) bool
+
+// Transform implements the Transformer interface.
+func (t removeF) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
+	for r, sz := rune(0), 0; len(src) > 0; src = src[sz:] {
+
+		if r = rune(src[0]); r < utf8.RuneSelf {
+			sz = 1
+		} else {
+			r, sz = utf8.DecodeRune(src)
+
+			if sz == 1 {
+				// Invalid rune.
+				if !atEOF && !utf8.FullRune(src[nSrc:]) {
+					err = ErrShortSrc
+					break
+				}
+				// We replace illegal bytes with RuneError. Not doing so might
+				// otherwise turn a sequence of invalid UTF-8 into valid UTF-8.
+				// The resulting byte sequence may subsequently contain runes
+				// for which t(r) is true that were passed unnoticed.
+				if !t(r) {
+					if nDst+3 > len(dst) {
+						err = ErrShortDst
+						break
+					}
+					nDst += copy(dst[nDst:], "\uFFFD")
+				}
+				nSrc++
+				continue
+			}
+		}
+
+		if !t(r) {
+			if nDst+sz > len(dst) {
+				err = ErrShortDst
+				break
+			}
+			nDst += copy(dst[nDst:], src[:sz])
+		}
+		nSrc += sz
+	}
+	return
+}
+
+// Bytes returns a new byte slice with the result of converting b using t.
+// If any unrecoverable error occurs it returns nil.
+func Bytes(t Transformer, b []byte) []byte {
+	out := make([]byte, len(b))
+	n := 0
+	for {
+		nDst, nSrc, err := t.Transform(out[n:], b, true)
+		n += nDst
+		if err == nil {
+			return out[:n]
+		} else if err != ErrShortDst {
+			return nil
+		}
+		b = b[nSrc:]
+
+		// Grow the destination buffer.
+		sz := len(out)
+		if sz <= 256 {
+			sz *= 2
+		} else {
+			sz += sz >> 1
+		}
+		out2 := make([]byte, sz)
+		copy(out2, out[:n])
+		out = out2
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/transform/transform_test.go

@@ -0,0 +1,901 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package transform
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"strconv"
+	"strings"
+	"testing"
+	"unicode/utf8"
+)
+
+type lowerCaseASCII struct{}
+
+func (lowerCaseASCII) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
+	n := len(src)
+	if n > len(dst) {
+		n, err = len(dst), ErrShortDst
+	}
+	for i, c := range src[:n] {
+		if 'A' <= c && c <= 'Z' {
+			c += 'a' - 'A'
+		}
+		dst[i] = c
+	}
+	return n, n, err
+}
+
+var errYouMentionedX = errors.New("you mentioned X")
+
+type dontMentionX struct{}
+
+func (dontMentionX) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
+	n := len(src)
+	if n > len(dst) {
+		n, err = len(dst), ErrShortDst
+	}
+	for i, c := range src[:n] {
+		if c == 'X' {
+			return i, i, errYouMentionedX
+		}
+		dst[i] = c
+	}
+	return n, n, err
+}
+
+// doublerAtEOF is a strange Transformer that transforms "this" to "tthhiiss",
+// but only if atEOF is true.
+type doublerAtEOF struct{}
+
+func (doublerAtEOF) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
+	if !atEOF {
+		return 0, 0, ErrShortSrc
+	}
+	for i, c := range src {
+		if 2*i+2 >= len(dst) {
+			return 2 * i, i, ErrShortDst
+		}
+		dst[2*i+0] = c
+		dst[2*i+1] = c
+	}
+	return 2 * len(src), len(src), nil
+}
+
+// rleDecode and rleEncode implement a toy run-length encoding: "aabbbbbbbbbb"
+// is encoded as "2a10b". The decoding is assumed to not contain any numbers.
+
+type rleDecode struct{}
+
+func (rleDecode) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
+loop:
+	for len(src) > 0 {
+		n := 0
+		for i, c := range src {
+			if '0' <= c && c <= '9' {
+				n = 10*n + int(c-'0')
+				continue
+			}
+			if i == 0 {
+				return nDst, nSrc, errors.New("rleDecode: bad input")
+			}
+			if n > len(dst) {
+				return nDst, nSrc, ErrShortDst
+			}
+			for j := 0; j < n; j++ {
+				dst[j] = c
+			}
+			dst, src = dst[n:], src[i+1:]
+			nDst, nSrc = nDst+n, nSrc+i+1
+			continue loop
+		}
+		if atEOF {
+			return nDst, nSrc, errors.New("rleDecode: bad input")
+		}
+		return nDst, nSrc, ErrShortSrc
+	}
+	return nDst, nSrc, nil
+}
+
+type rleEncode struct {
+	// allowStutter means that "xxxxxxxx" can be encoded as "5x3x"
+	// instead of always as "8x".
+	allowStutter bool
+}
+
+func (e rleEncode) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
+	for len(src) > 0 {
+		n, c0 := len(src), src[0]
+		for i, c := range src[1:] {
+			if c != c0 {
+				n = i + 1
+				break
+			}
+		}
+		if n == len(src) && !atEOF && !e.allowStutter {
+			return nDst, nSrc, ErrShortSrc
+		}
+		s := strconv.Itoa(n)
+		if len(s) >= len(dst) {
+			return nDst, nSrc, ErrShortDst
+		}
+		copy(dst, s)
+		dst[len(s)] = c0
+		dst, src = dst[len(s)+1:], src[n:]
+		nDst, nSrc = nDst+len(s)+1, nSrc+n
+	}
+	return nDst, nSrc, nil
+}
+
+type testCase struct {
+	desc     string
+	t        Transformer
+	src      string
+	dstSize  int
+	srcSize  int
+	ioSize   int
+	wantStr  string
+	wantErr  error
+	wantIter int // number of iterations taken; 0 means we don't care.
+}
+
+func (t testCase) String() string {
+	return tstr(t.t) + "; " + t.desc
+}
+
+func tstr(t Transformer) string {
+	if stringer, ok := t.(fmt.Stringer); ok {
+		return stringer.String()
+	}
+	s := fmt.Sprintf("%T", t)
+	return s[1+strings.Index(s, "."):]
+}
+
+func (c chain) String() string {
+	buf := &bytes.Buffer{}
+	buf.WriteString("Chain(")
+	for i, l := range c.link[:len(c.link)-1] {
+		if i != 0 {
+			fmt.Fprint(buf, ", ")
+		}
+		buf.WriteString(tstr(l.t))
+	}
+	buf.WriteString(")")
+	return buf.String()
+}
+
+var testCases = []testCase{
+	{
+		desc:    "basic",
+		t:       lowerCaseASCII{},
+		src:     "Hello WORLD.",
+		dstSize: 100,
+		srcSize: 100,
+		wantStr: "hello world.",
+	},
+
+	{
+		desc:    "small dst",
+		t:       lowerCaseASCII{},
+		src:     "Hello WORLD.",
+		dstSize: 3,
+		srcSize: 100,
+		wantStr: "hello world.",
+	},
+
+	{
+		desc:    "small src",
+		t:       lowerCaseASCII{},
+		src:     "Hello WORLD.",
+		dstSize: 100,
+		srcSize: 4,
+		wantStr: "hello world.",
+	},
+
+	{
+		desc:    "small buffers",
+		t:       lowerCaseASCII{},
+		src:     "Hello WORLD.",
+		dstSize: 3,
+		srcSize: 4,
+		wantStr: "hello world.",
+	},
+
+	{
+		desc:    "very small buffers",
+		t:       lowerCaseASCII{},
+		src:     "Hello WORLD.",
+		dstSize: 1,
+		srcSize: 1,
+		wantStr: "hello world.",
+	},
+
+	{
+		desc:    "basic",
+		t:       dontMentionX{},
+		src:     "The First Rule of Transform Club: don't mention Mister X, ever.",
+		dstSize: 100,
+		srcSize: 100,
+		wantStr: "The First Rule of Transform Club: don't mention Mister ",
+		wantErr: errYouMentionedX,
+	},
+
+	{
+		desc:    "small buffers",
+		t:       dontMentionX{},
+		src:     "The First Rule of Transform Club: don't mention Mister X, ever.",
+		dstSize: 10,
+		srcSize: 10,
+		wantStr: "The First Rule of Transform Club: don't mention Mister ",
+		wantErr: errYouMentionedX,
+	},
+
+	{
+		desc:    "very small buffers",
+		t:       dontMentionX{},
+		src:     "The First Rule of Transform Club: don't mention Mister X, ever.",
+		dstSize: 1,
+		srcSize: 1,
+		wantStr: "The First Rule of Transform Club: don't mention Mister ",
+		wantErr: errYouMentionedX,
+	},
+
+	{
+		desc:    "only transform at EOF",
+		t:       doublerAtEOF{},
+		src:     "this",
+		dstSize: 100,
+		srcSize: 100,
+		wantStr: "tthhiiss",
+	},
+
+	{
+		desc:    "basic",
+		t:       rleDecode{},
+		src:     "1a2b3c10d11e0f1g",
+		dstSize: 100,
+		srcSize: 100,
+		wantStr: "abbcccddddddddddeeeeeeeeeeeg",
+	},
+
+	{
+		desc:    "long",
+		t:       rleDecode{},
+		src:     "12a23b34c45d56e99z",
+		dstSize: 100,
+		srcSize: 100,
+		wantStr: strings.Repeat("a", 12) +
+			strings.Repeat("b", 23) +
+			strings.Repeat("c", 34) +
+			strings.Repeat("d", 45) +
+			strings.Repeat("e", 56) +
+			strings.Repeat("z", 99),
+	},
+
+	{
+		desc:    "tight buffers",
+		t:       rleDecode{},
+		src:     "1a2b3c10d11e0f1g",
+		dstSize: 11,
+		srcSize: 3,
+		wantStr: "abbcccddddddddddeeeeeeeeeeeg",
+	},
+
+	{
+		desc:    "short dst",
+		t:       rleDecode{},
+		src:     "1a2b3c10d11e0f1g",
+		dstSize: 10,
+		srcSize: 3,
+		wantStr: "abbcccdddddddddd",
+		wantErr: ErrShortDst,
+	},
+
+	{
+		desc:    "short src",
+		t:       rleDecode{},
+		src:     "1a2b3c10d11e0f1g",
+		dstSize: 11,
+		srcSize: 2,
+		ioSize:  2,
+		wantStr: "abbccc",
+		wantErr: ErrShortSrc,
+	},
+
+	{
+		desc:    "basic",
+		t:       rleEncode{},
+		src:     "abbcccddddddddddeeeeeeeeeeeg",
+		dstSize: 100,
+		srcSize: 100,
+		wantStr: "1a2b3c10d11e1g",
+	},
+
+	{
+		desc: "long",
+		t:    rleEncode{},
+		src: strings.Repeat("a", 12) +
+			strings.Repeat("b", 23) +
+			strings.Repeat("c", 34) +
+			strings.Repeat("d", 45) +
+			strings.Repeat("e", 56) +
+			strings.Repeat("z", 99),
+		dstSize: 100,
+		srcSize: 100,
+		wantStr: "12a23b34c45d56e99z",
+	},
+
+	{
+		desc:    "tight buffers",
+		t:       rleEncode{},
+		src:     "abbcccddddddddddeeeeeeeeeeeg",
+		dstSize: 3,
+		srcSize: 12,
+		wantStr: "1a2b3c10d11e1g",
+	},
+
+	{
+		desc:    "short dst",
+		t:       rleEncode{},
+		src:     "abbcccddddddddddeeeeeeeeeeeg",
+		dstSize: 2,
+		srcSize: 12,
+		wantStr: "1a2b3c",
+		wantErr: ErrShortDst,
+	},
+
+	{
+		desc:    "short src",
+		t:       rleEncode{},
+		src:     "abbcccddddddddddeeeeeeeeeeeg",
+		dstSize: 3,
+		srcSize: 11,
+		ioSize:  11,
+		wantStr: "1a2b3c10d",
+		wantErr: ErrShortSrc,
+	},
+
+	{
+		desc:    "allowStutter = false",
+		t:       rleEncode{allowStutter: false},
+		src:     "aaaabbbbbbbbccccddddd",
+		dstSize: 10,
+		srcSize: 10,
+		wantStr: "4a8b4c5d",
+	},
+
+	{
+		desc:    "allowStutter = true",
+		t:       rleEncode{allowStutter: true},
+		src:     "aaaabbbbbbbbccccddddd",
+		dstSize: 10,
+		srcSize: 10,
+		ioSize:  10,
+		wantStr: "4a6b2b4c4d1d",
+	},
+}
+
+func TestReader(t *testing.T) {
+	for _, tc := range testCases {
+		reset(tc.t)
+		r := NewReader(strings.NewReader(tc.src), tc.t)
+		// Differently sized dst and src buffers are not part of the
+		// exported API. We override them manually.
+		r.dst = make([]byte, tc.dstSize)
+		r.src = make([]byte, tc.srcSize)
+		got, err := ioutil.ReadAll(r)
+		str := string(got)
+		if str != tc.wantStr || err != tc.wantErr {
+			t.Errorf("%s:\ngot  %q, %v\nwant %q, %v", tc, str, err, tc.wantStr, tc.wantErr)
+		}
+	}
+}
+
+func reset(t Transformer) {
+	var dst [128]byte
+	for err := ErrShortDst; err != nil; {
+		_, _, err = t.Transform(dst[:], nil, true)
+	}
+}
+
+func TestWriter(t *testing.T) {
+	tests := append(testCases, chainTests()...)
+	for _, tc := range tests {
+		sizes := []int{1, 2, 3, 4, 5, 10, 100, 1000}
+		if tc.ioSize > 0 {
+			sizes = []int{tc.ioSize}
+		}
+		for _, sz := range sizes {
+			bb := &bytes.Buffer{}
+			reset(tc.t)
+			w := NewWriter(bb, tc.t)
+			// Differently sized dst and src buffers are not part of the
+			// exported API. We override them manually.
+			w.dst = make([]byte, tc.dstSize)
+			w.src = make([]byte, tc.srcSize)
+			src := make([]byte, sz)
+			var err error
+			for b := tc.src; len(b) > 0 && err == nil; {
+				n := copy(src, b)
+				b = b[n:]
+				m := 0
+				m, err = w.Write(src[:n])
+				if m != n && err == nil {
+					t.Errorf("%s:%d: did not consume all bytes %d < %d", tc, sz, m, n)
+				}
+			}
+			if err == nil {
+				err = w.Close()
+			}
+			str := bb.String()
+			if str != tc.wantStr || err != tc.wantErr {
+				t.Errorf("%s:%d:\ngot  %q, %v\nwant %q, %v", tc, sz, str, err, tc.wantStr, tc.wantErr)
+			}
+		}
+	}
+}
+
+func TestNop(t *testing.T) {
+	testCases := []struct {
+		str     string
+		dstSize int
+		err     error
+	}{
+		{"", 0, nil},
+		{"", 10, nil},
+		{"a", 0, ErrShortDst},
+		{"a", 1, nil},
+		{"a", 10, nil},
+	}
+	for i, tc := range testCases {
+		dst := make([]byte, tc.dstSize)
+		nDst, nSrc, err := Nop.Transform(dst, []byte(tc.str), true)
+		want := tc.str
+		if tc.dstSize < len(want) {
+			want = want[:tc.dstSize]
+		}
+		if got := string(dst[:nDst]); got != want || err != tc.err || nSrc != nDst {
+			t.Errorf("%d:\ngot %q, %d, %v\nwant %q, %d, %v", i, got, nSrc, err, want, nDst, tc.err)
+		}
+	}
+}
+
+func TestDiscard(t *testing.T) {
+	testCases := []struct {
+		str     string
+		dstSize int
+	}{
+		{"", 0},
+		{"", 10},
+		{"a", 0},
+		{"ab", 10},
+	}
+	for i, tc := range testCases {
+		nDst, nSrc, err := Discard.Transform(make([]byte, tc.dstSize), []byte(tc.str), true)
+		if nDst != 0 || nSrc != len(tc.str) || err != nil {
+			t.Errorf("%d:\ngot %q, %d, %v\nwant 0, %d, nil", i, nDst, nSrc, err, len(tc.str))
+		}
+	}
+}
+
+// mkChain creates a Chain transformer. x must be alternating between transformer
+// and bufSize, like T, (sz, T)*
+func mkChain(x ...interface{}) *chain {
+	t := []Transformer{}
+	for i := 0; i < len(x); i += 2 {
+		t = append(t, x[i].(Transformer))
+	}
+	c := Chain(t...).(*chain)
+	for i, j := 1, 1; i < len(x); i, j = i+2, j+1 {
+		c.link[j].b = make([]byte, x[i].(int))
+	}
+	return c
+}
+
+func chainTests() []testCase {
+	return []testCase{
+		{
+			desc:     "nil error",
+			t:        mkChain(rleEncode{}, 100, lowerCaseASCII{}),
+			src:      "ABB",
+			dstSize:  100,
+			srcSize:  100,
+			wantStr:  "1a2b",
+			wantErr:  nil,
+			wantIter: 1,
+		},
+
+		{
+			desc:    "short dst buffer",
+			t:       mkChain(lowerCaseASCII{}, 3, rleDecode{}),
+			src:     "1a2b3c10d11e0f1g",
+			dstSize: 10,
+			srcSize: 3,
+			wantStr: "abbcccdddddddddd",
+			wantErr: ErrShortDst,
+		},
+
+		{
+			desc:    "short internal dst buffer",
+			t:       mkChain(lowerCaseASCII{}, 3, rleDecode{}, 10, Nop),
+			src:     "1a2b3c10d11e0f1g",
+			dstSize: 100,
+			srcSize: 3,
+			wantStr: "abbcccdddddddddd",
+			wantErr: errShortInternal,
+		},
+
+		{
+			desc:    "short internal dst buffer from input",
+			t:       mkChain(rleDecode{}, 10, Nop),
+			src:     "1a2b3c10d11e0f1g",
+			dstSize: 100,
+			srcSize: 3,
+			wantStr: "abbcccdddddddddd",
+			wantErr: errShortInternal,
+		},
+
+		{
+			desc:    "empty short internal dst buffer",
+			t:       mkChain(lowerCaseASCII{}, 3, rleDecode{}, 10, Nop),
+			src:     "4a7b11e0f1g",
+			dstSize: 100,
+			srcSize: 3,
+			wantStr: "aaaabbbbbbb",
+			wantErr: errShortInternal,
+		},
+
+		{
+			desc:    "empty short internal dst buffer from input",
+			t:       mkChain(rleDecode{}, 10, Nop),
+			src:     "4a7b11e0f1g",
+			dstSize: 100,
+			srcSize: 3,
+			wantStr: "aaaabbbbbbb",
+			wantErr: errShortInternal,
+		},
+
+		{
+			desc:     "short internal src buffer after full dst buffer",
+			t:        mkChain(Nop, 5, rleEncode{}, 10, Nop),
+			src:      "cccccddddd",
+			dstSize:  100,
+			srcSize:  100,
+			wantStr:  "",
+			wantErr:  errShortInternal,
+			wantIter: 1,
+		},
+
+		{
+			desc:    "short internal src buffer after short dst buffer; test lastFull",
+			t:       mkChain(rleDecode{}, 5, rleEncode{}, 4, Nop),
+			src:     "2a1b4c6d",
+			dstSize: 100,
+			srcSize: 100,
+			wantStr: "2a1b",
+			wantErr: errShortInternal,
+		},
+
+		{
+			desc:     "short internal src buffer after successful complete fill",
+			t:        mkChain(Nop, 3, rleDecode{}),
+			src:      "123a4b",
+			dstSize:  4,
+			srcSize:  3,
+			wantStr:  "",
+			wantErr:  errShortInternal,
+			wantIter: 1,
+		},
+
+		{
+			desc:    "short internal src buffer after short dst buffer; test lastFull",
+			t:       mkChain(rleDecode{}, 5, rleEncode{}),
+			src:     "2a1b4c6d",
+			dstSize: 4,
+			srcSize: 100,
+			wantStr: "2a1b",
+			wantErr: errShortInternal,
+		},
+
+		{
+			desc:    "short src buffer",
+			t:       mkChain(rleEncode{}, 5, Nop),
+			src:     "abbcccddddeeeee",
+			dstSize: 4,
+			srcSize: 4,
+			ioSize:  4,
+			wantStr: "1a2b3c",
+			wantErr: ErrShortSrc,
+		},
+
+		{
+			desc:     "process all in one go",
+			t:        mkChain(rleEncode{}, 5, Nop),
+			src:      "abbcccddddeeeeeffffff",
+			dstSize:  100,
+			srcSize:  100,
+			wantStr:  "1a2b3c4d5e6f",
+			wantErr:  nil,
+			wantIter: 1,
+		},
+
+		{
+			desc:    "complete processing downstream after error",
+			t:       mkChain(dontMentionX{}, 2, rleDecode{}, 5, Nop),
+			src:     "3a4b5eX",
+			dstSize: 100,
+			srcSize: 100,
+			ioSize:  100,
+			wantStr: "aaabbbbeeeee",
+			wantErr: errYouMentionedX,
+		},
+
+		{
+			desc:    "return downstream fatal errors first (followed by short dst)",
+			t:       mkChain(dontMentionX{}, 8, rleDecode{}, 4, Nop),
+			src:     "3a4b5eX",
+			dstSize: 100,
+			srcSize: 100,
+			ioSize:  100,
+			wantStr: "aaabbbb",
+			wantErr: errShortInternal,
+		},
+
+		{
+			desc:    "return downstream fatal errors first (followed by short src)",
+			t:       mkChain(dontMentionX{}, 5, Nop, 1, rleDecode{}),
+			src:     "1a5bX",
+			dstSize: 100,
+			srcSize: 100,
+			ioSize:  100,
+			wantStr: "",
+			wantErr: errShortInternal,
+		},
+
+		{
+			desc:    "short internal",
+			t:       mkChain(Nop, 11, rleEncode{}, 3, Nop),
+			src:     "abbcccddddddddddeeeeeeeeeeeg",
+			dstSize: 3,
+			srcSize: 100,
+			wantStr: "1a2b3c10d",
+			wantErr: errShortInternal,
+		},
+	}
+}
+
+func doTransform(tc testCase) (res string, iter int, err error) {
+	reset(tc.t)
+	dst := make([]byte, tc.dstSize)
+	out, in := make([]byte, 0, 2*len(tc.src)), []byte(tc.src)
+	for {
+		iter++
+		src, atEOF := in, true
+		if len(src) > tc.srcSize {
+			src, atEOF = src[:tc.srcSize], false
+		}
+		nDst, nSrc, err := tc.t.Transform(dst, src, atEOF)
+		out = append(out, dst[:nDst]...)
+		in = in[nSrc:]
+		switch {
+		case err == nil && len(in) != 0:
+		case err == ErrShortSrc && nSrc > 0:
+		case err == ErrShortDst && nDst > 0:
+		default:
+			return string(out), iter, err
+		}
+	}
+}
+
+func TestChain(t *testing.T) {
+	if c, ok := Chain().(nop); !ok {
+		t.Errorf("empty chain: %v; want Nop", c)
+	}
+
+	// Test Chain for a single Transformer.
+	for _, tc := range testCases {
+		tc.t = Chain(tc.t)
+		str, _, err := doTransform(tc)
+		if str != tc.wantStr || err != tc.wantErr {
+			t.Errorf("%s:\ngot  %q, %v\nwant %q, %v", tc, str, err, tc.wantStr, tc.wantErr)
+		}
+	}
+
+	tests := chainTests()
+	sizes := []int{1, 2, 3, 4, 5, 7, 10, 100, 1000}
+	addTest := func(tc testCase, t *chain) {
+		if t.link[0].t != tc.t && tc.wantErr == ErrShortSrc {
+			tc.wantErr = errShortInternal
+		}
+		if t.link[len(t.link)-2].t != tc.t && tc.wantErr == ErrShortDst {
+			tc.wantErr = errShortInternal
+		}
+		tc.t = t
+		tests = append(tests, tc)
+	}
+	for _, tc := range testCases {
+		for _, sz := range sizes {
+			tt := tc
+			tt.dstSize = sz
+			addTest(tt, mkChain(tc.t, tc.dstSize, Nop))
+			addTest(tt, mkChain(tc.t, tc.dstSize, Nop, 2, Nop))
+			addTest(tt, mkChain(Nop, tc.srcSize, tc.t, tc.dstSize, Nop))
+			if sz >= tc.dstSize && (tc.wantErr != ErrShortDst || sz == tc.dstSize) {
+				addTest(tt, mkChain(Nop, tc.srcSize, tc.t))
+				addTest(tt, mkChain(Nop, 100, Nop, tc.srcSize, tc.t))
+			}
+		}
+	}
+	for _, tc := range testCases {
+		tt := tc
+		tt.dstSize = 1
+		tt.wantStr = ""
+		addTest(tt, mkChain(tc.t, tc.dstSize, Discard))
+		addTest(tt, mkChain(Nop, tc.srcSize, tc.t, tc.dstSize, Discard))
+		addTest(tt, mkChain(Nop, tc.srcSize, tc.t, tc.dstSize, Nop, tc.dstSize, Discard))
+	}
+	for _, tc := range testCases {
+		tt := tc
+		tt.dstSize = 100
+		tt.wantStr = strings.Replace(tc.src, "0f", "", -1)
+		// Chain encoders and decoders.
+		if _, ok := tc.t.(rleEncode); ok && tc.wantErr == nil {
+			addTest(tt, mkChain(tc.t, tc.dstSize, Nop, 1000, rleDecode{}))
+			addTest(tt, mkChain(tc.t, tc.dstSize, Nop, tc.dstSize, rleDecode{}))
+			addTest(tt, mkChain(Nop, tc.srcSize, tc.t, tc.dstSize, Nop, 100, rleDecode{}))
+			// decoding needs larger destinations
+			addTest(tt, mkChain(Nop, tc.srcSize, tc.t, tc.dstSize, rleDecode{}, 100, Nop))
+			addTest(tt, mkChain(Nop, tc.srcSize, tc.t, tc.dstSize, Nop, 100, rleDecode{}, 100, Nop))
+		} else if _, ok := tc.t.(rleDecode); ok && tc.wantErr == nil {
+			// The internal buffer size may need to be the sum of the maximum segment
+			// size of the two encoders!
+			addTest(tt, mkChain(tc.t, 2*tc.dstSize, rleEncode{}))
+			addTest(tt, mkChain(tc.t, tc.dstSize, Nop, 101, rleEncode{}))
+			addTest(tt, mkChain(Nop, tc.srcSize, tc.t, tc.dstSize, Nop, 100, rleEncode{}))
+			addTest(tt, mkChain(Nop, tc.srcSize, tc.t, tc.dstSize, Nop, 200, rleEncode{}, 100, Nop))
+		}
+	}
+	for _, tc := range tests {
+		str, iter, err := doTransform(tc)
+		mi := tc.wantIter != 0 && tc.wantIter != iter
+		if str != tc.wantStr || err != tc.wantErr || mi {
+			t.Errorf("%s:\ngot  iter:%d, %q, %v\nwant iter:%d, %q, %v", tc, iter, str, err, tc.wantIter, tc.wantStr, tc.wantErr)
+		}
+		break
+	}
+}
+
+func TestRemoveFunc(t *testing.T) {
+	filter := RemoveFunc(func(r rune) bool {
+		return strings.IndexRune("ab\u0300\u1234,", r) != -1
+	})
+	tests := []testCase{
+		{
+			src:     ",",
+			wantStr: "",
+		},
+
+		{
+			src:     "c",
+			wantStr: "c",
+		},
+
+		{
+			src:     "\u2345",
+			wantStr: "\u2345",
+		},
+
+		{
+			src:     "tschüß",
+			wantStr: "tschüß",
+		},
+
+		{
+			src:     ",до,свидания,",
+			wantStr: "досвидания",
+		},
+
+		{
+			src:     "a\xbd\xb2=\xbc ⌘",
+			wantStr: "\uFFFD\uFFFD=\uFFFD ⌘",
+		},
+
+		{
+			// If we didn't replace illegal bytes with RuneError, the result
+			// would be \u0300 or the code would need to be more complex.
+			src:     "\xcc\u0300\x80",
+			wantStr: "\uFFFD\uFFFD",
+		},
+
+		{
+			src:      "\xcc\u0300\x80",
+			dstSize:  3,
+			wantStr:  "\uFFFD\uFFFD",
+			wantIter: 2,
+		},
+
+		{
+			src:     "\u2345",
+			dstSize: 2,
+			wantStr: "",
+			wantErr: ErrShortDst,
+		},
+
+		{
+			src:     "\xcc",
+			dstSize: 2,
+			wantStr: "",
+			wantErr: ErrShortDst,
+		},
+
+		{
+			src:     "\u0300",
+			dstSize: 2,
+			srcSize: 1,
+			wantStr: "",
+			wantErr: ErrShortSrc,
+		},
+
+		{
+			t: RemoveFunc(func(r rune) bool {
+				return r == utf8.RuneError
+			}),
+			src:     "\xcc\u0300\x80",
+			wantStr: "\u0300",
+		},
+	}
+
+	for _, tc := range tests {
+		tc.desc = tc.src
+		if tc.t == nil {
+			tc.t = filter
+		}
+		if tc.dstSize == 0 {
+			tc.dstSize = 100
+		}
+		if tc.srcSize == 0 {
+			tc.srcSize = 100
+		}
+		str, iter, err := doTransform(tc)
+		mi := tc.wantIter != 0 && tc.wantIter != iter
+		if str != tc.wantStr || err != tc.wantErr || mi {
+			t.Errorf("%+q:\ngot  iter:%d, %+q, %v\nwant iter:%d, %+q, %v", tc.src, iter, str, err, tc.wantIter, tc.wantStr, tc.wantErr)
+		}
+
+		tc.src = str
+		idem, _, _ := doTransform(tc)
+		if str != idem {
+			t.Errorf("%+q: found %+q; want %+q", tc.src, idem, str)
+		}
+	}
+}
+
+func TestBytes(t *testing.T) {
+	for _, tt := range append(testCases, chainTests()...) {
+		if tt.desc == "allowStutter = true" {
+			// We don't have control over the buffer size, so we eliminate tests
+			// that depend on a specific buffer size being set.
+			continue
+		}
+		got := Bytes(tt.t, []byte(tt.src))
+		if tt.wantErr != nil {
+			if tt.wantErr != ErrShortDst && tt.wantErr != ErrShortSrc {
+				// Bytes should return nil for non-recoverable errors.
+				if g, w := (got == nil), (tt.wantErr != nil); g != w {
+					t.Errorf("%s:error: got %v; want %v", tt.desc, g, w)
+				}
+			}
+			// The output strings in the tests that expect an error will
+			// almost certainly not be the same as the result of Bytes.
+			continue
+		}
+		if string(got) != tt.wantStr {
+			t.Errorf("%s:string: got %q; want %q", tt.desc, got, tt.wantStr)
+		}
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/Makefile

@@ -0,0 +1,30 @@
+# Copyright 2011 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+maketables: maketables.go triegen.go
+	go build $^
+
+maketesttables: maketesttables.go triegen.go
+	go build $^
+
+normregtest: normregtest.go
+	go build $^
+
+tables:	maketables
+	./maketables > tables.go
+	gofmt -w tables.go
+
+trietesttables: maketesttables
+	./maketesttables > triedata_test.go
+	gofmt -w triedata_test.go
+
+# Downloads from www.unicode.org, so not part
+# of standard test scripts.
+test: testtables regtest
+
+testtables: maketables
+	./maketables -test > data_test.go && go test -tags=test
+
+regtest: normregtest
+	./normregtest

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/composition.go

@@ -0,0 +1,514 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import "unicode/utf8"
+
+const (
+	maxNonStarters = 30
+	// The maximum number of characters needed for a buffer is
+	// maxNonStarters + 1 for the starter + 1 for the GCJ
+	maxBufferSize    = maxNonStarters + 2
+	maxNFCExpansion  = 3  // NFC(0x1D160)
+	maxNFKCExpansion = 18 // NFKC(0xFDFA)
+
+	maxByteBufferSize = utf8.UTFMax * maxBufferSize // 128
+)
+
+// ssState is used for reporting the segment state after inserting a rune.
+// It is returned by streamSafe.next.
+type ssState int
+
+const (
+	// Indicates a rune was successfully added to the segment.
+	ssSuccess ssState = iota
+	// Indicates a rune starts a new segment and should not be added.
+	ssStarter
+	// Indicates a rune caused a segment overflow and a CGJ should be inserted.
+	ssOverflow
+)
+
+// streamSafe implements the policy of when a CGJ should be inserted.
+type streamSafe uint8
+
+// mkStreamSafe is a shorthand for declaring a streamSafe var and calling
+// first on it.
+func mkStreamSafe(p Properties) streamSafe {
+	return streamSafe(p.nTrailingNonStarters())
+}
+
+// first inserts the first rune of a segment.
+func (ss *streamSafe) first(p Properties) {
+	if *ss != 0 {
+		panic("!= 0")
+	}
+	*ss = streamSafe(p.nTrailingNonStarters())
+}
+
+// insert returns a ssState value to indicate whether a rune represented by p
+// can be inserted.
+func (ss *streamSafe) next(p Properties) ssState {
+	if *ss > maxNonStarters {
+		panic("streamSafe was not reset")
+	}
+	n := p.nLeadingNonStarters()
+	if *ss += streamSafe(n); *ss > maxNonStarters {
+		*ss = 0
+		return ssOverflow
+	}
+	// The Stream-Safe Text Processing prescribes that the counting can stop
+	// as soon as a starter is encountered. However, there are some starters,
+	// like Jamo V and T, that can combine with other runes, leaving their
+	// successive non-starters appended to the previous, possibly causing an
+	// overflow. We will therefore consider any rune with a non-zero nLead to
+	// be a non-starter. Note that it always hold that if nLead > 0 then
+	// nLead == nTrail.
+	if n == 0 {
+		*ss = 0
+		return ssStarter
+	}
+	return ssSuccess
+}
+
+// backwards is used for checking for overflow and segment starts
+// when traversing a string backwards. Users do not need to call first
+// for the first rune. The state of the streamSafe retains the count of
+// the non-starters loaded.
+func (ss *streamSafe) backwards(p Properties) ssState {
+	if *ss > maxNonStarters {
+		panic("streamSafe was not reset")
+	}
+	c := *ss + streamSafe(p.nTrailingNonStarters())
+	if c > maxNonStarters {
+		return ssOverflow
+	}
+	*ss = c
+	if p.nLeadingNonStarters() == 0 {
+		return ssStarter
+	}
+	return ssSuccess
+}
+
+func (ss streamSafe) isMax() bool {
+	return ss == maxNonStarters
+}
+
+// GraphemeJoiner is inserted after maxNonStarters non-starter runes.
+const GraphemeJoiner = "\u034F"
+
+// reorderBuffer is used to normalize a single segment.  Characters inserted with
+// insert are decomposed and reordered based on CCC. The compose method can
+// be used to recombine characters.  Note that the byte buffer does not hold
+// the UTF-8 characters in order.  Only the rune array is maintained in sorted
+// order. flush writes the resulting segment to a byte array.
+type reorderBuffer struct {
+	rune  [maxBufferSize]Properties // Per character info.
+	byte  [maxByteBufferSize]byte   // UTF-8 buffer. Referenced by runeInfo.pos.
+	nbyte uint8                     // Number or bytes.
+	ss    streamSafe                // For limiting length of non-starter sequence.
+	nrune int                       // Number of runeInfos.
+	f     formInfo
+
+	src      input
+	nsrc     int
+	tmpBytes input
+
+	out    []byte
+	flushF func(*reorderBuffer) bool
+}
+
+func (rb *reorderBuffer) init(f Form, src []byte) {
+	rb.f = *formTable[f]
+	rb.src.setBytes(src)
+	rb.nsrc = len(src)
+	rb.ss = 0
+}
+
+func (rb *reorderBuffer) initString(f Form, src string) {
+	rb.f = *formTable[f]
+	rb.src.setString(src)
+	rb.nsrc = len(src)
+	rb.ss = 0
+}
+
+func (rb *reorderBuffer) setFlusher(out []byte, f func(*reorderBuffer) bool) {
+	rb.out = out
+	rb.flushF = f
+}
+
+// reset discards all characters from the buffer.
+func (rb *reorderBuffer) reset() {
+	rb.nrune = 0
+	rb.nbyte = 0
+	rb.ss = 0
+}
+
+func (rb *reorderBuffer) doFlush() bool {
+	if rb.f.composing {
+		rb.compose()
+	}
+	res := rb.flushF(rb)
+	rb.reset()
+	return res
+}
+
+// appendFlush appends the normalized segment to rb.out.
+func appendFlush(rb *reorderBuffer) bool {
+	for i := 0; i < rb.nrune; i++ {
+		start := rb.rune[i].pos
+		end := start + rb.rune[i].size
+		rb.out = append(rb.out, rb.byte[start:end]...)
+	}
+	return true
+}
+
+// flush appends the normalized segment to out and resets rb.
+func (rb *reorderBuffer) flush(out []byte) []byte {
+	for i := 0; i < rb.nrune; i++ {
+		start := rb.rune[i].pos
+		end := start + rb.rune[i].size
+		out = append(out, rb.byte[start:end]...)
+	}
+	rb.reset()
+	return out
+}
+
+// flushCopy copies the normalized segment to buf and resets rb.
+// It returns the number of bytes written to buf.
+func (rb *reorderBuffer) flushCopy(buf []byte) int {
+	p := 0
+	for i := 0; i < rb.nrune; i++ {
+		runep := rb.rune[i]
+		p += copy(buf[p:], rb.byte[runep.pos:runep.pos+runep.size])
+	}
+	rb.reset()
+	return p
+}
+
+// insertOrdered inserts a rune in the buffer, ordered by Canonical Combining Class.
+// It returns false if the buffer is not large enough to hold the rune.
+// It is used internally by insert and insertString only.
+func (rb *reorderBuffer) insertOrdered(info Properties) {
+	n := rb.nrune
+	b := rb.rune[:]
+	cc := info.ccc
+	if cc > 0 {
+		// Find insertion position + move elements to make room.
+		for ; n > 0; n-- {
+			if b[n-1].ccc <= cc {
+				break
+			}
+			b[n] = b[n-1]
+		}
+	}
+	rb.nrune += 1
+	pos := uint8(rb.nbyte)
+	rb.nbyte += utf8.UTFMax
+	info.pos = pos
+	b[n] = info
+}
+
+// insertErr is an error code returned by insert. Using this type instead
+// of error improves performance up to 20% for many of the benchmarks.
+type insertErr int
+
+const (
+	iSuccess insertErr = -iota
+	iShortDst
+	iShortSrc
+)
+
+// insertFlush inserts the given rune in the buffer ordered by CCC.
+// If a decomposition with multiple segments are encountered, they leading
+// ones are flushed.
+// It returns a non-zero error code if the rune was not inserted.
+func (rb *reorderBuffer) insertFlush(src input, i int, info Properties) insertErr {
+	if rune := src.hangul(i); rune != 0 {
+		rb.decomposeHangul(rune)
+		return iSuccess
+	}
+	if info.hasDecomposition() {
+		return rb.insertDecomposed(info.Decomposition())
+	}
+	rb.insertSingle(src, i, info)
+	return iSuccess
+}
+
+// insertUnsafe inserts the given rune in the buffer ordered by CCC.
+// It is assumed there is sufficient space to hold the runes. It is the
+// responsibility of the caller to ensure this. This can be done by checking
+// the state returned by the streamSafe type.
+func (rb *reorderBuffer) insertUnsafe(src input, i int, info Properties) {
+	if rune := src.hangul(i); rune != 0 {
+		rb.decomposeHangul(rune)
+	}
+	if info.hasDecomposition() {
+		// TODO: inline.
+		rb.insertDecomposed(info.Decomposition())
+	} else {
+		rb.insertSingle(src, i, info)
+	}
+}
+
+// insertDecomposed inserts an entry in to the reorderBuffer for each rune
+// in dcomp. dcomp must be a sequence of decomposed UTF-8-encoded runes.
+// It flushes the buffer on each new segment start.
+func (rb *reorderBuffer) insertDecomposed(dcomp []byte) insertErr {
+	rb.tmpBytes.setBytes(dcomp)
+	for i := 0; i < len(dcomp); {
+		info := rb.f.info(rb.tmpBytes, i)
+		if info.BoundaryBefore() && rb.nrune > 0 && !rb.doFlush() {
+			return iShortDst
+		}
+		i += copy(rb.byte[rb.nbyte:], dcomp[i:i+int(info.size)])
+		rb.insertOrdered(info)
+	}
+	return iSuccess
+}
+
+// insertSingle inserts an entry in the reorderBuffer for the rune at
+// position i. info is the runeInfo for the rune at position i.
+func (rb *reorderBuffer) insertSingle(src input, i int, info Properties) {
+	src.copySlice(rb.byte[rb.nbyte:], i, i+int(info.size))
+	rb.insertOrdered(info)
+}
+
+// insertCGJ inserts a Combining Grapheme Joiner (0x034f) into rb.
+func (rb *reorderBuffer) insertCGJ() {
+	rb.insertSingle(input{str: GraphemeJoiner}, 0, Properties{size: uint8(len(GraphemeJoiner))})
+}
+
+// appendRune inserts a rune at the end of the buffer. It is used for Hangul.
+func (rb *reorderBuffer) appendRune(r rune) {
+	bn := rb.nbyte
+	sz := utf8.EncodeRune(rb.byte[bn:], rune(r))
+	rb.nbyte += utf8.UTFMax
+	rb.rune[rb.nrune] = Properties{pos: bn, size: uint8(sz)}
+	rb.nrune++
+}
+
+// assignRune sets a rune at position pos. It is used for Hangul and recomposition.
+func (rb *reorderBuffer) assignRune(pos int, r rune) {
+	bn := rb.rune[pos].pos
+	sz := utf8.EncodeRune(rb.byte[bn:], rune(r))
+	rb.rune[pos] = Properties{pos: bn, size: uint8(sz)}
+}
+
+// runeAt returns the rune at position n. It is used for Hangul and recomposition.
+func (rb *reorderBuffer) runeAt(n int) rune {
+	inf := rb.rune[n]
+	r, _ := utf8.DecodeRune(rb.byte[inf.pos : inf.pos+inf.size])
+	return r
+}
+
+// bytesAt returns the UTF-8 encoding of the rune at position n.
+// It is used for Hangul and recomposition.
+func (rb *reorderBuffer) bytesAt(n int) []byte {
+	inf := rb.rune[n]
+	return rb.byte[inf.pos : int(inf.pos)+int(inf.size)]
+}
+
+// For Hangul we combine algorithmically, instead of using tables.
+const (
+	hangulBase  = 0xAC00 // UTF-8(hangulBase) -> EA B0 80
+	hangulBase0 = 0xEA
+	hangulBase1 = 0xB0
+	hangulBase2 = 0x80
+
+	hangulEnd  = hangulBase + jamoLVTCount // UTF-8(0xD7A4) -> ED 9E A4
+	hangulEnd0 = 0xED
+	hangulEnd1 = 0x9E
+	hangulEnd2 = 0xA4
+
+	jamoLBase  = 0x1100 // UTF-8(jamoLBase) -> E1 84 00
+	jamoLBase0 = 0xE1
+	jamoLBase1 = 0x84
+	jamoLEnd   = 0x1113
+	jamoVBase  = 0x1161
+	jamoVEnd   = 0x1176
+	jamoTBase  = 0x11A7
+	jamoTEnd   = 0x11C3
+
+	jamoTCount   = 28
+	jamoVCount   = 21
+	jamoVTCount  = 21 * 28
+	jamoLVTCount = 19 * 21 * 28
+)
+
+const hangulUTF8Size = 3
+
+func isHangul(b []byte) bool {
+	if len(b) < hangulUTF8Size {
+		return false
+	}
+	b0 := b[0]
+	if b0 < hangulBase0 {
+		return false
+	}
+	b1 := b[1]
+	switch {
+	case b0 == hangulBase0:
+		return b1 >= hangulBase1
+	case b0 < hangulEnd0:
+		return true
+	case b0 > hangulEnd0:
+		return false
+	case b1 < hangulEnd1:
+		return true
+	}
+	return b1 == hangulEnd1 && b[2] < hangulEnd2
+}
+
+func isHangulString(b string) bool {
+	if len(b) < hangulUTF8Size {
+		return false
+	}
+	b0 := b[0]
+	if b0 < hangulBase0 {
+		return false
+	}
+	b1 := b[1]
+	switch {
+	case b0 == hangulBase0:
+		return b1 >= hangulBase1
+	case b0 < hangulEnd0:
+		return true
+	case b0 > hangulEnd0:
+		return false
+	case b1 < hangulEnd1:
+		return true
+	}
+	return b1 == hangulEnd1 && b[2] < hangulEnd2
+}
+
+// Caller must ensure len(b) >= 2.
+func isJamoVT(b []byte) bool {
+	// True if (rune & 0xff00) == jamoLBase
+	return b[0] == jamoLBase0 && (b[1]&0xFC) == jamoLBase1
+}
+
+func isHangulWithoutJamoT(b []byte) bool {
+	c, _ := utf8.DecodeRune(b)
+	c -= hangulBase
+	return c < jamoLVTCount && c%jamoTCount == 0
+}
+
+// decomposeHangul writes the decomposed Hangul to buf and returns the number
+// of bytes written.  len(buf) should be at least 9.
+func decomposeHangul(buf []byte, r rune) int {
+	const JamoUTF8Len = 3
+	r -= hangulBase
+	x := r % jamoTCount
+	r /= jamoTCount
+	utf8.EncodeRune(buf, jamoLBase+r/jamoVCount)
+	utf8.EncodeRune(buf[JamoUTF8Len:], jamoVBase+r%jamoVCount)
+	if x != 0 {
+		utf8.EncodeRune(buf[2*JamoUTF8Len:], jamoTBase+x)
+		return 3 * JamoUTF8Len
+	}
+	return 2 * JamoUTF8Len
+}
+
+// decomposeHangul algorithmically decomposes a Hangul rune into
+// its Jamo components.
+// See http://unicode.org/reports/tr15/#Hangul for details on decomposing Hangul.
+func (rb *reorderBuffer) decomposeHangul(r rune) {
+	r -= hangulBase
+	x := r % jamoTCount
+	r /= jamoTCount
+	rb.appendRune(jamoLBase + r/jamoVCount)
+	rb.appendRune(jamoVBase + r%jamoVCount)
+	if x != 0 {
+		rb.appendRune(jamoTBase + x)
+	}
+}
+
+// combineHangul algorithmically combines Jamo character components into Hangul.
+// See http://unicode.org/reports/tr15/#Hangul for details on combining Hangul.
+func (rb *reorderBuffer) combineHangul(s, i, k int) {
+	b := rb.rune[:]
+	bn := rb.nrune
+	for ; i < bn; i++ {
+		cccB := b[k-1].ccc
+		cccC := b[i].ccc
+		if cccB == 0 {
+			s = k - 1
+		}
+		if s != k-1 && cccB >= cccC {
+			// b[i] is blocked by greater-equal cccX below it
+			b[k] = b[i]
+			k++
+		} else {
+			l := rb.runeAt(s) // also used to compare to hangulBase
+			v := rb.runeAt(i) // also used to compare to jamoT
+			switch {
+			case jamoLBase <= l && l < jamoLEnd &&
+				jamoVBase <= v && v < jamoVEnd:
+				// 11xx plus 116x to LV
+				rb.assignRune(s, hangulBase+
+					(l-jamoLBase)*jamoVTCount+(v-jamoVBase)*jamoTCount)
+			case hangulBase <= l && l < hangulEnd &&
+				jamoTBase < v && v < jamoTEnd &&
+				((l-hangulBase)%jamoTCount) == 0:
+				// ACxx plus 11Ax to LVT
+				rb.assignRune(s, l+v-jamoTBase)
+			default:
+				b[k] = b[i]
+				k++
+			}
+		}
+	}
+	rb.nrune = k
+}
+
+// compose recombines the runes in the buffer.
+// It should only be used to recompose a single segment, as it will not
+// handle alternations between Hangul and non-Hangul characters correctly.
+func (rb *reorderBuffer) compose() {
+	// UAX #15, section X5 , including Corrigendum #5
+	// "In any character sequence beginning with starter S, a character C is
+	//  blocked from S if and only if there is some character B between S
+	//  and C, and either B is a starter or it has the same or higher
+	//  combining class as C."
+	bn := rb.nrune
+	if bn == 0 {
+		return
+	}
+	k := 1
+	b := rb.rune[:]
+	for s, i := 0, 1; i < bn; i++ {
+		if isJamoVT(rb.bytesAt(i)) {
+			// Redo from start in Hangul mode. Necessary to support
+			// U+320E..U+321E in NFKC mode.
+			rb.combineHangul(s, i, k)
+			return
+		}
+		ii := b[i]
+		// We can only use combineForward as a filter if we later
+		// get the info for the combined character. This is more
+		// expensive than using the filter. Using combinesBackward()
+		// is safe.
+		if ii.combinesBackward() {
+			cccB := b[k-1].ccc
+			cccC := ii.ccc
+			blocked := false // b[i] blocked by starter or greater or equal CCC?
+			if cccB == 0 {
+				s = k - 1
+			} else {
+				blocked = s != k-1 && cccB >= cccC
+			}
+			if !blocked {
+				combined := combine(rb.runeAt(s), rb.runeAt(i))
+				if combined != 0 {
+					rb.assignRune(s, combined)
+					continue
+				}
+			}
+		}
+		b[k] = b[i]
+		k++
+	}
+	rb.nrune = k
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/composition_test.go

@@ -0,0 +1,130 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import "testing"
+
+// TestCase is used for most tests.
+type TestCase struct {
+	in  []rune
+	out []rune
+}
+
+func runTests(t *testing.T, name string, fm Form, tests []TestCase) {
+	rb := reorderBuffer{}
+	rb.init(fm, nil)
+	for i, test := range tests {
+		rb.setFlusher(nil, appendFlush)
+		for j, rune := range test.in {
+			b := []byte(string(rune))
+			src := inputBytes(b)
+			info := rb.f.info(src, 0)
+			if j == 0 {
+				rb.ss.first(info)
+			} else {
+				rb.ss.next(info)
+			}
+			if rb.insertFlush(src, 0, info) < 0 {
+				t.Errorf("%s:%d: insert failed for rune %d", name, i, j)
+			}
+		}
+		rb.doFlush()
+		was := string(rb.out)
+		want := string(test.out)
+		if len(was) != len(want) {
+			t.Errorf("%s:%d: length = %d; want %d", name, i, len(was), len(want))
+		}
+		if was != want {
+			k, pfx := pidx(was, want)
+			t.Errorf("%s:%d: \nwas  %s%+q; \nwant %s%+q", name, i, pfx, was[k:], pfx, want[k:])
+		}
+	}
+}
+
+func TestFlush(t *testing.T) {
+	const (
+		hello = "Hello "
+		world = "world!"
+	)
+	buf := make([]byte, maxByteBufferSize)
+	p := copy(buf, hello)
+	out := buf[p:]
+	rb := reorderBuffer{}
+	rb.initString(NFC, world)
+	if i := rb.flushCopy(out); i != 0 {
+		t.Errorf("wrote bytes on flush of empty buffer. (len(out) = %d)", i)
+	}
+
+	for i := range world {
+		// No need to set streamSafe values for this test.
+		rb.insertFlush(rb.src, i, rb.f.info(rb.src, i))
+		n := rb.flushCopy(out)
+		out = out[n:]
+		p += n
+	}
+
+	was := buf[:p]
+	want := hello + world
+	if string(was) != want {
+		t.Errorf(`output after flush was "%s"; want "%s"`, string(was), want)
+	}
+	if rb.nrune != 0 {
+		t.Errorf("non-null size of info buffer (rb.nrune == %d)", rb.nrune)
+	}
+	if rb.nbyte != 0 {
+		t.Errorf("non-null size of byte buffer (rb.nbyte == %d)", rb.nbyte)
+	}
+}
+
+var insertTests = []TestCase{
+	{[]rune{'a'}, []rune{'a'}},
+	{[]rune{0x300}, []rune{0x300}},
+	{[]rune{0x300, 0x316}, []rune{0x316, 0x300}}, // CCC(0x300)==230; CCC(0x316)==220
+	{[]rune{0x316, 0x300}, []rune{0x316, 0x300}},
+	{[]rune{0x41, 0x316, 0x300}, []rune{0x41, 0x316, 0x300}},
+	{[]rune{0x41, 0x300, 0x316}, []rune{0x41, 0x316, 0x300}},
+	{[]rune{0x300, 0x316, 0x41}, []rune{0x316, 0x300, 0x41}},
+	{[]rune{0x41, 0x300, 0x40, 0x316}, []rune{0x41, 0x300, 0x40, 0x316}},
+}
+
+func TestInsert(t *testing.T) {
+	runTests(t, "TestInsert", NFD, insertTests)
+}
+
+var decompositionNFDTest = []TestCase{
+	{[]rune{0xC0}, []rune{0x41, 0x300}},
+	{[]rune{0xAC00}, []rune{0x1100, 0x1161}},
+	{[]rune{0x01C4}, []rune{0x01C4}},
+	{[]rune{0x320E}, []rune{0x320E}},
+	{[]rune("음ẻ과"), []rune{0x110B, 0x1173, 0x11B7, 0x65, 0x309, 0x1100, 0x116A}},
+}
+
+var decompositionNFKDTest = []TestCase{
+	{[]rune{0xC0}, []rune{0x41, 0x300}},
+	{[]rune{0xAC00}, []rune{0x1100, 0x1161}},
+	{[]rune{0x01C4}, []rune{0x44, 0x5A, 0x030C}},
+	{[]rune{0x320E}, []rune{0x28, 0x1100, 0x1161, 0x29}},
+}
+
+func TestDecomposition(t *testing.T) {
+	runTests(t, "TestDecompositionNFD", NFD, decompositionNFDTest)
+	runTests(t, "TestDecompositionNFKD", NFKD, decompositionNFKDTest)
+}
+
+var compositionTest = []TestCase{
+	{[]rune{0x41, 0x300}, []rune{0xC0}},
+	{[]rune{0x41, 0x316}, []rune{0x41, 0x316}},
+	{[]rune{0x41, 0x300, 0x35D}, []rune{0xC0, 0x35D}},
+	{[]rune{0x41, 0x316, 0x300}, []rune{0xC0, 0x316}},
+	// blocking starter
+	{[]rune{0x41, 0x316, 0x40, 0x300}, []rune{0x41, 0x316, 0x40, 0x300}},
+	{[]rune{0x1100, 0x1161}, []rune{0xAC00}},
+	// parenthesized Hangul, alternate between ASCII and Hangul.
+	{[]rune{0x28, 0x1100, 0x1161, 0x29}, []rune{0x28, 0xAC00, 0x29}},
+}
+
+func TestComposition(t *testing.T) {
+	runTests(t, "TestComposition", NFC, compositionTest)
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/example_iter_test.go

@@ -0,0 +1,82 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm_test
+
+import (
+	"bytes"
+	"fmt"
+	"unicode/utf8"
+
+	"code.google.com/p/go.text/unicode/norm"
+)
+
+// EqualSimple uses a norm.Iter to compare two non-normalized
+// strings for equivalence.
+func EqualSimple(a, b string) bool {
+	var ia, ib norm.Iter
+	ia.InitString(norm.NFKD, a)
+	ib.InitString(norm.NFKD, b)
+	for !ia.Done() && !ib.Done() {
+		if !bytes.Equal(ia.Next(), ib.Next()) {
+			return false
+		}
+	}
+	return ia.Done() && ib.Done()
+}
+
+// FindPrefix finds the longest common prefix of ASCII characters
+// of a and b.
+func FindPrefix(a, b string) int {
+	i := 0
+	for ; i < len(a) && i < len(b) && a[i] < utf8.RuneSelf && a[i] == b[i]; i++ {
+	}
+	return i
+}
+
+// EqualOpt is like EqualSimple, but optimizes the special
+// case for ASCII characters.
+func EqualOpt(a, b string) bool {
+	n := FindPrefix(a, b)
+	a, b = a[n:], b[n:]
+	var ia, ib norm.Iter
+	ia.InitString(norm.NFKD, a)
+	ib.InitString(norm.NFKD, b)
+	for !ia.Done() && !ib.Done() {
+		if !bytes.Equal(ia.Next(), ib.Next()) {
+			return false
+		}
+		if n := int64(FindPrefix(a[ia.Pos():], b[ib.Pos():])); n != 0 {
+			ia.Seek(n, 1)
+			ib.Seek(n, 1)
+		}
+	}
+	return ia.Done() && ib.Done()
+}
+
+var compareTests = []struct{ a, b string }{
+	{"aaa", "aaa"},
+	{"aaa", "aab"},
+	{"a\u0300a", "\u00E0a"},
+	{"a\u0300\u0320b", "a\u0320\u0300b"},
+	{"\u1E0A\u0323", "\x44\u0323\u0307"},
+	// A character that decomposes into multiple segments
+	// spans several iterations.
+	{"\u3304", "\u30A4\u30CB\u30F3\u30AF\u3099"},
+}
+
+func ExampleIter() {
+	for i, t := range compareTests {
+		r0 := EqualSimple(t.a, t.b)
+		r1 := EqualOpt(t.a, t.b)
+		fmt.Printf("%d: %v %v\n", i, r0, r1)
+	}
+	// Output:
+	// 0: true true
+	// 1: false false
+	// 2: true true
+	// 3: true true
+	// 4: true true
+	// 5: true true
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/forminfo.go

@@ -0,0 +1,256 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+// This file contains Form-specific logic and wrappers for data in tables.go.
+
+// Rune info is stored in a separate trie per composing form. A composing form
+// and its corresponding decomposing form share the same trie.  Each trie maps
+// a rune to a uint16. The values take two forms.  For v >= 0x8000:
+//   bits
+//   15:    1 (inverse of NFD_QD bit of qcInfo)
+//   13..7: qcInfo (see below). isYesD is always true (no decompostion).
+//    6..0: ccc (compressed CCC value).
+// For v < 0x8000, the respective rune has a decomposition and v is an index
+// into a byte array of UTF-8 decomposition sequences and additional info and
+// has the form:
+//    <header> <decomp_byte>* [<tccc> [<lccc>]]
+// The header contains the number of bytes in the decomposition (excluding this
+// length byte). The two most significant bits of this length byte correspond
+// to bit 5 and 4 of qcInfo (see below).  The byte sequence itself starts at v+1.
+// The byte sequence is followed by a trailing and leading CCC if the values
+// for these are not zero.  The value of v determines which ccc are appended
+// to the sequences.  For v < firstCCC, there are none, for v >= firstCCC,
+// the sequence is followed by a trailing ccc, and for v >= firstLeadingCC
+// there is an additional leading ccc. The value of tccc itself is the
+// trailing CCC shifted left 2 bits. The two least-significant bits of tccc
+// are the number of trailing non-starters.
+
+const (
+	qcInfoMask      = 0x3F // to clear all but the relevant bits in a qcInfo
+	headerLenMask   = 0x3F // extract the length value from the header byte
+	headerFlagsMask = 0xC0 // extract the qcInfo bits from the header byte
+)
+
+// Properties provides access to normalization properties of a rune.
+type Properties struct {
+	pos   uint8  // start position in reorderBuffer; used in composition.go
+	size  uint8  // length of UTF-8 encoding of this rune
+	ccc   uint8  // leading canonical combining class (ccc if not decomposition)
+	tccc  uint8  // trailing canonical combining class (ccc if not decomposition)
+	nLead uint8  // number of leading non-starters.
+	flags qcInfo // quick check flags
+	index uint16
+}
+
+// functions dispatchable per form
+type lookupFunc func(b input, i int) Properties
+
+// formInfo holds Form-specific functions and tables.
+type formInfo struct {
+	form                     Form
+	composing, compatibility bool // form type
+	info                     lookupFunc
+	nextMain                 iterFunc
+}
+
+var formTable []*formInfo
+
+func init() {
+	formTable = make([]*formInfo, 4)
+
+	for i := range formTable {
+		f := &formInfo{}
+		formTable[i] = f
+		f.form = Form(i)
+		if Form(i) == NFKD || Form(i) == NFKC {
+			f.compatibility = true
+			f.info = lookupInfoNFKC
+		} else {
+			f.info = lookupInfoNFC
+		}
+		f.nextMain = nextDecomposed
+		if Form(i) == NFC || Form(i) == NFKC {
+			f.nextMain = nextComposed
+			f.composing = true
+		}
+	}
+}
+
+// We do not distinguish between boundaries for NFC, NFD, etc. to avoid
+// unexpected behavior for the user.  For example, in NFD, there is a boundary
+// after 'a'.  However, 'a' might combine with modifiers, so from the application's
+// perspective it is not a good boundary. We will therefore always use the
+// boundaries for the combining variants.
+
+// BoundaryBefore returns true if this rune starts a new segment and
+// cannot combine with any rune on the left.
+func (p Properties) BoundaryBefore() bool {
+	if p.ccc == 0 && !p.combinesBackward() {
+		return true
+	}
+	// We assume that the CCC of the first character in a decomposition
+	// is always non-zero if different from info.ccc and that we can return
+	// false at this point. This is verified by maketables.
+	return false
+}
+
+// BoundaryAfter returns true if runes cannot combine with or otherwise
+// interact with this or previous runes.
+func (p Properties) BoundaryAfter() bool {
+	// TODO: loosen these conditions.
+	return p.isInert()
+}
+
+// We pack quick check data in 4 bits:
+//   5:    Combines forward  (0 == false, 1 == true)
+//   4..3: NFC_QC Yes(00), No (10), or Maybe (11)
+//   2:    NFD_QC Yes (0) or No (1). No also means there is a decomposition.
+//   1..0: Number of trailing non-starters.
+//
+// When all 4 bits are zero, the character is inert, meaning it is never
+// influenced by normalization.
+type qcInfo uint8
+
+func (p Properties) isYesC() bool { return p.flags&0x10 == 0 }
+func (p Properties) isYesD() bool { return p.flags&0x4 == 0 }
+
+func (p Properties) combinesForward() bool  { return p.flags&0x20 != 0 }
+func (p Properties) combinesBackward() bool { return p.flags&0x8 != 0 } // == isMaybe
+func (p Properties) hasDecomposition() bool { return p.flags&0x4 != 0 } // == isNoD
+
+func (p Properties) isInert() bool {
+	return p.flags&qcInfoMask == 0 && p.ccc == 0
+}
+
+func (p Properties) multiSegment() bool {
+	return p.index >= firstMulti && p.index < endMulti
+}
+
+func (p Properties) nLeadingNonStarters() uint8 {
+	return p.nLead
+}
+
+func (p Properties) nTrailingNonStarters() uint8 {
+	return uint8(p.flags & 0x03)
+}
+
+// Decomposition returns the decomposition for the underlying rune
+// or nil if there is none.
+func (p Properties) Decomposition() []byte {
+	// TODO: create the decomposition for Hangul?
+	if p.index == 0 {
+		return nil
+	}
+	i := p.index
+	n := decomps[i] & headerLenMask
+	i++
+	return decomps[i : i+uint16(n)]
+}
+
+// Size returns the length of UTF-8 encoding of the rune.
+func (p Properties) Size() int {
+	return int(p.size)
+}
+
+// CCC returns the canonical combining class of the underlying rune.
+func (p Properties) CCC() uint8 {
+	if p.index >= firstCCCZeroExcept {
+		return 0
+	}
+	return ccc[p.ccc]
+}
+
+// LeadCCC returns the CCC of the first rune in the decomposition.
+// If there is no decomposition, LeadCCC equals CCC.
+func (p Properties) LeadCCC() uint8 {
+	return ccc[p.ccc]
+}
+
+// TrailCCC returns the CCC of the last rune in the decomposition.
+// If there is no decomposition, TrailCCC equals CCC.
+func (p Properties) TrailCCC() uint8 {
+	return ccc[p.tccc]
+}
+
+// Recomposition
+// We use 32-bit keys instead of 64-bit for the two codepoint keys.
+// This clips off the bits of three entries, but we know this will not
+// result in a collision. In the unlikely event that changes to
+// UnicodeData.txt introduce collisions, the compiler will catch it.
+// Note that the recomposition map for NFC and NFKC are identical.
+
+// combine returns the combined rune or 0 if it doesn't exist.
+func combine(a, b rune) rune {
+	key := uint32(uint16(a))<<16 + uint32(uint16(b))
+	return recompMap[key]
+}
+
+func lookupInfoNFC(b input, i int) Properties {
+	v, sz := b.charinfoNFC(i)
+	return compInfo(v, sz)
+}
+
+func lookupInfoNFKC(b input, i int) Properties {
+	v, sz := b.charinfoNFKC(i)
+	return compInfo(v, sz)
+}
+
+// Properties returns properties for the first rune in s.
+func (f Form) Properties(s []byte) Properties {
+	if f == NFC || f == NFD {
+		return compInfo(nfcTrie.lookup(s))
+	}
+	return compInfo(nfkcTrie.lookup(s))
+}
+
+// PropertiesString returns properties for the first rune in s.
+func (f Form) PropertiesString(s string) Properties {
+	if f == NFC || f == NFD {
+		return compInfo(nfcTrie.lookupString(s))
+	}
+	return compInfo(nfkcTrie.lookupString(s))
+}
+
+// compInfo converts the information contained in v and sz
+// to a Properties.  See the comment at the top of the file
+// for more information on the format.
+func compInfo(v uint16, sz int) Properties {
+	if v == 0 {
+		return Properties{size: uint8(sz)}
+	} else if v >= 0x8000 {
+		p := Properties{
+			size:  uint8(sz),
+			ccc:   uint8(v),
+			tccc:  uint8(v),
+			flags: qcInfo(v >> 8),
+		}
+		if p.ccc > 0 || p.combinesBackward() {
+			p.nLead = uint8(p.flags & 0x3)
+		}
+		return p
+	}
+	// has decomposition
+	h := decomps[v]
+	f := (qcInfo(h&headerFlagsMask) >> 2) | 0x4
+	p := Properties{size: uint8(sz), flags: f, index: v}
+	if v >= firstCCC {
+		v += uint16(h&headerLenMask) + 1
+		c := decomps[v]
+		p.tccc = c >> 2
+		p.flags |= qcInfo(c & 0x3)
+		if v >= firstLeadingCCC {
+			p.nLead = c & 0x3
+			if v >= firstStarterWithNLead {
+				// We were tricked. Remove the decomposition.
+				p.flags &= 0x03
+				p.index = 0
+				return p
+			}
+			p.ccc = decomps[v+1]
+		}
+	}
+	return p
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/forminfo_test.go

@@ -0,0 +1,54 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build test
+
+package norm
+
+import "testing"
+
+func TestProperties(t *testing.T) {
+	var d runeData
+	CK := [2]string{"C", "K"}
+	for k, r := 1, rune(0); r < 0x2ffff; r++ {
+		if k < len(testData) && r == testData[k].r {
+			d = testData[k]
+			k++
+		}
+		s := string(r)
+		for j, p := range []Properties{NFC.PropertiesString(s), NFKC.PropertiesString(s)} {
+			f := d.f[j]
+			if p.CCC() != d.ccc {
+				t.Errorf("%U: ccc(%s): was %d; want %d %X", r, CK[j], p.CCC(), d.ccc, p.index)
+			}
+			if p.isYesC() != (f.qc == Yes) {
+				t.Errorf("%U: YesC(%s): was %v; want %v", r, CK[j], p.isYesC(), f.qc == Yes)
+			}
+			if p.combinesBackward() != (f.qc == Maybe) {
+				t.Errorf("%U: combines backwards(%s): was %v; want %v", r, CK[j], p.combinesBackward(), f.qc == Maybe)
+			}
+			if p.nLeadingNonStarters() != d.nLead {
+				t.Errorf("%U: nLead(%s): was %d; want %d %#v %#v", r, CK[j], p.nLeadingNonStarters(), d.nLead, p, d)
+			}
+			if p.nTrailingNonStarters() != d.nTrail {
+				t.Errorf("%U: nTrail(%s): was %d; want %d %#v %#v", r, CK[j], p.nTrailingNonStarters(), d.nTrail, p, d)
+			}
+			if p.combinesForward() != f.combinesForward {
+				t.Errorf("%U: combines forward(%s): was %v; want %v %#v", r, CK[j], p.combinesForward(), f.combinesForward, p)
+			}
+			// Skip Hangul as it is algorithmically computed.
+			if r >= hangulBase && r < hangulEnd {
+				continue
+			}
+			if p.hasDecomposition() {
+				if has := f.decomposition != ""; !has {
+					t.Errorf("%U: hasDecomposition(%s): was %v; want %v", r, CK[j], p.hasDecomposition(), has)
+				}
+				if string(p.Decomposition()) != f.decomposition {
+					t.Errorf("%U: decomp(%s): was %+q; want %+q", r, CK[j], p.Decomposition(), f.decomposition)
+				}
+			}
+		}
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/input.go

@@ -0,0 +1,105 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import "unicode/utf8"
+
+type input struct {
+	str   string
+	bytes []byte
+}
+
+func inputBytes(str []byte) input {
+	return input{bytes: str}
+}
+
+func inputString(str string) input {
+	return input{str: str}
+}
+
+func (in *input) setBytes(str []byte) {
+	in.str = ""
+	in.bytes = str
+}
+
+func (in *input) setString(str string) {
+	in.str = str
+	in.bytes = nil
+}
+
+func (in *input) _byte(p int) byte {
+	if in.bytes == nil {
+		return in.str[p]
+	}
+	return in.bytes[p]
+}
+
+func (in *input) skipASCII(p, max int) int {
+	if in.bytes == nil {
+		for ; p < max && in.str[p] < utf8.RuneSelf; p++ {
+		}
+	} else {
+		for ; p < max && in.bytes[p] < utf8.RuneSelf; p++ {
+		}
+	}
+	return p
+}
+
+func (in *input) skipContinuationBytes(p int) int {
+	if in.bytes == nil {
+		for ; p < len(in.str) && !utf8.RuneStart(in.str[p]); p++ {
+		}
+	} else {
+		for ; p < len(in.bytes) && !utf8.RuneStart(in.bytes[p]); p++ {
+		}
+	}
+	return p
+}
+
+func (in *input) appendSlice(buf []byte, b, e int) []byte {
+	if in.bytes != nil {
+		return append(buf, in.bytes[b:e]...)
+	}
+	for i := b; i < e; i++ {
+		buf = append(buf, in.str[i])
+	}
+	return buf
+}
+
+func (in *input) copySlice(buf []byte, b, e int) int {
+	if in.bytes == nil {
+		return copy(buf, in.str[b:e])
+	}
+	return copy(buf, in.bytes[b:e])
+}
+
+func (in *input) charinfoNFC(p int) (uint16, int) {
+	if in.bytes == nil {
+		return nfcTrie.lookupString(in.str[p:])
+	}
+	return nfcTrie.lookup(in.bytes[p:])
+}
+
+func (in *input) charinfoNFKC(p int) (uint16, int) {
+	if in.bytes == nil {
+		return nfkcTrie.lookupString(in.str[p:])
+	}
+	return nfkcTrie.lookup(in.bytes[p:])
+}
+
+func (in *input) hangul(p int) (r rune) {
+	if in.bytes == nil {
+		if !isHangulString(in.str[p:]) {
+			return 0
+		}
+		r, _ = utf8.DecodeRuneInString(in.str[p:])
+	} else {
+		if !isHangul(in.bytes[p:]) {
+			return 0
+		}
+		r, _ = utf8.DecodeRune(in.bytes[p:])
+	}
+	return r
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/iter.go

@@ -0,0 +1,448 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import (
+	"fmt"
+	"unicode/utf8"
+)
+
+const MaxSegmentSize = maxByteBufferSize
+
+// An Iter iterates over a string or byte slice, while normalizing it
+// to a given Form.
+type Iter struct {
+	rb     reorderBuffer
+	buf    [maxByteBufferSize]byte
+	info   Properties // first character saved from previous iteration
+	next   iterFunc   // implementation of next depends on form
+	asciiF iterFunc
+
+	p        int    // current position in input source
+	multiSeg []byte // remainder of multi-segment decomposition
+}
+
+type iterFunc func(*Iter) []byte
+
+// Init initializes i to iterate over src after normalizing it to Form f.
+func (i *Iter) Init(f Form, src []byte) {
+	i.p = 0
+	if len(src) == 0 {
+		i.setDone()
+		i.rb.nsrc = 0
+		return
+	}
+	i.multiSeg = nil
+	i.rb.init(f, src)
+	i.next = i.rb.f.nextMain
+	i.asciiF = nextASCIIBytes
+	i.info = i.rb.f.info(i.rb.src, i.p)
+}
+
+// InitString initializes i to iterate over src after normalizing it to Form f.
+func (i *Iter) InitString(f Form, src string) {
+	i.p = 0
+	if len(src) == 0 {
+		i.setDone()
+		i.rb.nsrc = 0
+		return
+	}
+	i.multiSeg = nil
+	i.rb.initString(f, src)
+	i.next = i.rb.f.nextMain
+	i.asciiF = nextASCIIString
+	i.info = i.rb.f.info(i.rb.src, i.p)
+}
+
+// Seek sets the segment to be returned by the next call to Next to start
+// at position p.  It is the responsibility of the caller to set p to the
+// start of a UTF8 rune.
+func (i *Iter) Seek(offset int64, whence int) (int64, error) {
+	var abs int64
+	switch whence {
+	case 0:
+		abs = offset
+	case 1:
+		abs = int64(i.p) + offset
+	case 2:
+		abs = int64(i.rb.nsrc) + offset
+	default:
+		return 0, fmt.Errorf("norm: invalid whence")
+	}
+	if abs < 0 {
+		return 0, fmt.Errorf("norm: negative position")
+	}
+	if int(abs) >= i.rb.nsrc {
+		i.setDone()
+		return int64(i.p), nil
+	}
+	i.p = int(abs)
+	i.multiSeg = nil
+	i.next = i.rb.f.nextMain
+	i.info = i.rb.f.info(i.rb.src, i.p)
+	return abs, nil
+}
+
+// returnSlice returns a slice of the underlying input type as a byte slice.
+// If the underlying is of type []byte, it will simply return a slice.
+// If the underlying is of type string, it will copy the slice to the buffer
+// and return that.
+func (i *Iter) returnSlice(a, b int) []byte {
+	if i.rb.src.bytes == nil {
+		return i.buf[:copy(i.buf[:], i.rb.src.str[a:b])]
+	}
+	return i.rb.src.bytes[a:b]
+}
+
+// Pos returns the byte position at which the next call to Next will commence processing.
+func (i *Iter) Pos() int {
+	return i.p
+}
+
+func (i *Iter) setDone() {
+	i.next = nextDone
+	i.p = i.rb.nsrc
+}
+
+// Done returns true if there is no more input to process.
+func (i *Iter) Done() bool {
+	return i.p >= i.rb.nsrc
+}
+
+// Next returns f(i.input[i.Pos():n]), where n is a boundary of i.input.
+// For any input a and b for which f(a) == f(b), subsequent calls
+// to Next will return the same segments.
+// Modifying runes are grouped together with the preceding starter, if such a starter exists.
+// Although not guaranteed, n will typically be the smallest possible n.
+func (i *Iter) Next() []byte {
+	return i.next(i)
+}
+
+func nextASCIIBytes(i *Iter) []byte {
+	p := i.p + 1
+	if p >= i.rb.nsrc {
+		i.setDone()
+		return i.rb.src.bytes[i.p:p]
+	}
+	if i.rb.src.bytes[p] < utf8.RuneSelf {
+		p0 := i.p
+		i.p = p
+		return i.rb.src.bytes[p0:p]
+	}
+	i.info = i.rb.f.info(i.rb.src, i.p)
+	i.next = i.rb.f.nextMain
+	return i.next(i)
+}
+
+func nextASCIIString(i *Iter) []byte {
+	p := i.p + 1
+	if p >= i.rb.nsrc {
+		i.buf[0] = i.rb.src.str[i.p]
+		i.setDone()
+		return i.buf[:1]
+	}
+	if i.rb.src.str[p] < utf8.RuneSelf {
+		i.buf[0] = i.rb.src.str[i.p]
+		i.p = p
+		return i.buf[:1]
+	}
+	i.info = i.rb.f.info(i.rb.src, i.p)
+	i.next = i.rb.f.nextMain
+	return i.next(i)
+}
+
+func nextHangul(i *Iter) []byte {
+	p := i.p
+	next := p + hangulUTF8Size
+	if next >= i.rb.nsrc {
+		i.setDone()
+	} else if i.rb.src.hangul(next) == 0 {
+		i.info = i.rb.f.info(i.rb.src, i.p)
+		i.next = i.rb.f.nextMain
+		return i.next(i)
+	}
+	i.p = next
+	return i.buf[:decomposeHangul(i.buf[:], i.rb.src.hangul(p))]
+}
+
+func nextDone(i *Iter) []byte {
+	return nil
+}
+
+// nextMulti is used for iterating over multi-segment decompositions
+// for decomposing normal forms.
+func nextMulti(i *Iter) []byte {
+	j := 0
+	d := i.multiSeg
+	// skip first rune
+	for j = 1; j < len(d) && !utf8.RuneStart(d[j]); j++ {
+	}
+	for j < len(d) {
+		info := i.rb.f.info(input{bytes: d}, j)
+		if info.BoundaryBefore() {
+			i.multiSeg = d[j:]
+			return d[:j]
+		}
+		j += int(info.size)
+	}
+	// treat last segment as normal decomposition
+	i.next = i.rb.f.nextMain
+	return i.next(i)
+}
+
+// nextMultiNorm is used for iterating over multi-segment decompositions
+// for composing normal forms.
+func nextMultiNorm(i *Iter) []byte {
+	j := 0
+	d := i.multiSeg
+	for j < len(d) {
+		info := i.rb.f.info(input{bytes: d}, j)
+		if info.BoundaryBefore() {
+			i.rb.compose()
+			seg := i.buf[:i.rb.flushCopy(i.buf[:])]
+			i.rb.ss.first(info)
+			i.rb.insertUnsafe(input{bytes: d}, j, info)
+			i.multiSeg = d[j+int(info.size):]
+			return seg
+		}
+		i.rb.ss.next(info)
+		i.rb.insertUnsafe(input{bytes: d}, j, info)
+		j += int(info.size)
+	}
+	i.multiSeg = nil
+	i.next = nextComposed
+	return doNormComposed(i)
+}
+
+// nextDecomposed is the implementation of Next for forms NFD and NFKD.
+func nextDecomposed(i *Iter) (next []byte) {
+	outp := 0
+	inCopyStart, outCopyStart := i.p, 0
+	ss := mkStreamSafe(i.info)
+	for {
+		if sz := int(i.info.size); sz <= 1 {
+			p := i.p
+			i.p++ // ASCII or illegal byte.  Either way, advance by 1.
+			if i.p >= i.rb.nsrc {
+				i.setDone()
+				return i.returnSlice(p, i.p)
+			} else if i.rb.src._byte(i.p) < utf8.RuneSelf {
+				i.next = i.asciiF
+				return i.returnSlice(p, i.p)
+			}
+			outp++
+		} else if d := i.info.Decomposition(); d != nil {
+			// Note: If leading CCC != 0, then len(d) == 2 and last is also non-zero.
+			// Case 1: there is a leftover to copy.  In this case the decomposition
+			// must begin with a modifier and should always be appended.
+			// Case 2: no leftover. Simply return d if followed by a ccc == 0 value.
+			p := outp + len(d)
+			if outp > 0 {
+				i.rb.src.copySlice(i.buf[outCopyStart:], inCopyStart, i.p)
+				if p > len(i.buf) {
+					return i.buf[:outp]
+				}
+			} else if i.info.multiSegment() {
+				// outp must be 0 as multi-segment decompositions always
+				// start a new segment.
+				if i.multiSeg == nil {
+					i.multiSeg = d
+					i.next = nextMulti
+					return nextMulti(i)
+				}
+				// We are in the last segment.  Treat as normal decomposition.
+				d = i.multiSeg
+				i.multiSeg = nil
+				p = len(d)
+			}
+			prevCC := i.info.tccc
+			if i.p += sz; i.p >= i.rb.nsrc {
+				i.setDone()
+				i.info = Properties{} // Force BoundaryBefore to succeed.
+			} else {
+				i.info = i.rb.f.info(i.rb.src, i.p)
+			}
+			switch ss.next(i.info) {
+			case ssOverflow:
+				i.next = nextCGJDecompose
+				fallthrough
+			case ssStarter:
+				if outp > 0 {
+					copy(i.buf[outp:], d)
+					return i.buf[:p]
+				}
+				return d
+			}
+			copy(i.buf[outp:], d)
+			outp = p
+			inCopyStart, outCopyStart = i.p, outp
+			if i.info.ccc < prevCC {
+				goto doNorm
+			}
+			continue
+		} else if r := i.rb.src.hangul(i.p); r != 0 {
+			outp = decomposeHangul(i.buf[:], r)
+			i.p += hangulUTF8Size
+			inCopyStart, outCopyStart = i.p, outp
+			if i.p >= i.rb.nsrc {
+				i.setDone()
+				break
+			} else if i.rb.src.hangul(i.p) != 0 {
+				i.next = nextHangul
+				return i.buf[:outp]
+			}
+		} else {
+			p := outp + sz
+			if p > len(i.buf) {
+				break
+			}
+			outp = p
+			i.p += sz
+		}
+		if i.p >= i.rb.nsrc {
+			i.setDone()
+			break
+		}
+		prevCC := i.info.tccc
+		i.info = i.rb.f.info(i.rb.src, i.p)
+		if v := ss.next(i.info); v == ssStarter {
+			break
+		} else if v == ssOverflow {
+			i.next = nextCGJDecompose
+			break
+		}
+		if i.info.ccc < prevCC {
+			goto doNorm
+		}
+	}
+	if outCopyStart == 0 {
+		return i.returnSlice(inCopyStart, i.p)
+	} else if inCopyStart < i.p {
+		i.rb.src.copySlice(i.buf[outCopyStart:], inCopyStart, i.p)
+	}
+	return i.buf[:outp]
+doNorm:
+	// Insert what we have decomposed so far in the reorderBuffer.
+	// As we will only reorder, there will always be enough room.
+	i.rb.src.copySlice(i.buf[outCopyStart:], inCopyStart, i.p)
+	i.rb.insertDecomposed(i.buf[0:outp])
+	return doNormDecomposed(i)
+}
+
+func doNormDecomposed(i *Iter) []byte {
+	for {
+		if s := i.rb.ss.next(i.info); s == ssOverflow {
+			i.next = nextCGJDecompose
+			break
+		}
+		i.rb.insertUnsafe(i.rb.src, i.p, i.info)
+		if i.p += int(i.info.size); i.p >= i.rb.nsrc {
+			i.setDone()
+			break
+		}
+		i.info = i.rb.f.info(i.rb.src, i.p)
+		if i.info.ccc == 0 {
+			break
+		}
+	}
+	// new segment or too many combining characters: exit normalization
+	return i.buf[:i.rb.flushCopy(i.buf[:])]
+}
+
+func nextCGJDecompose(i *Iter) []byte {
+	i.rb.ss = 0
+	i.rb.insertCGJ()
+	i.next = nextDecomposed
+	buf := doNormDecomposed(i)
+	return buf
+}
+
+// nextComposed is the implementation of Next for forms NFC and NFKC.
+func nextComposed(i *Iter) []byte {
+	outp, startp := 0, i.p
+	var prevCC uint8
+	ss := mkStreamSafe(i.info)
+	for {
+		if !i.info.isYesC() {
+			goto doNorm
+		}
+		prevCC = i.info.tccc
+		sz := int(i.info.size)
+		if sz == 0 {
+			sz = 1 // illegal rune: copy byte-by-byte
+		}
+		p := outp + sz
+		if p > len(i.buf) {
+			break
+		}
+		outp = p
+		i.p += sz
+		if i.p >= i.rb.nsrc {
+			i.setDone()
+			break
+		} else if i.rb.src._byte(i.p) < utf8.RuneSelf {
+			i.next = i.asciiF
+			break
+		}
+		i.info = i.rb.f.info(i.rb.src, i.p)
+		if v := ss.next(i.info); v == ssStarter {
+			break
+		} else if v == ssOverflow {
+			i.next = nextCGJCompose
+			break
+		}
+		if i.info.ccc < prevCC {
+			goto doNorm
+		}
+	}
+	return i.returnSlice(startp, i.p)
+doNorm:
+	i.p = startp
+	i.info = i.rb.f.info(i.rb.src, i.p)
+	if i.info.multiSegment() {
+		d := i.info.Decomposition()
+		info := i.rb.f.info(input{bytes: d}, 0)
+		i.rb.insertUnsafe(input{bytes: d}, 0, info)
+		i.multiSeg = d[int(info.size):]
+		i.next = nextMultiNorm
+		return nextMultiNorm(i)
+	}
+	i.rb.ss.first(i.info)
+	i.rb.insertUnsafe(i.rb.src, i.p, i.info)
+	return doNormComposed(i)
+}
+
+func doNormComposed(i *Iter) []byte {
+	// First rune should already be inserted.
+	for {
+		if i.p += int(i.info.size); i.p >= i.rb.nsrc {
+			i.setDone()
+			break
+		}
+		i.info = i.rb.f.info(i.rb.src, i.p)
+		if s := i.rb.ss.next(i.info); s == ssStarter {
+			break
+		} else if s == ssOverflow {
+			i.next = nextCGJCompose
+			break
+		}
+		i.rb.insertUnsafe(i.rb.src, i.p, i.info)
+	}
+	i.rb.compose()
+	seg := i.buf[:i.rb.flushCopy(i.buf[:])]
+	return seg
+}
+
+func nextCGJCompose(i *Iter) []byte {
+	i.rb.ss = 0 // instead of first
+	i.rb.insertCGJ()
+	i.next = nextComposed
+	// Note that we treat any rune with nLeadingNonStarters > 0 as a non-starter,
+	// even if they are not. This is particularly dubious for U+FF9E and UFF9A.
+	// If we ever change that, insert a check here.
+	i.rb.ss.first(i.info)
+	i.rb.insertUnsafe(i.rb.src, i.p, i.info)
+	return doNormComposed(i)
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/iter_test.go

@@ -0,0 +1,98 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import (
+	"strings"
+	"testing"
+)
+
+func doIterNorm(f Form, s string) []byte {
+	acc := []byte{}
+	i := Iter{}
+	i.InitString(f, s)
+	for !i.Done() {
+		acc = append(acc, i.Next()...)
+	}
+	return acc
+}
+
+func TestIterNext(t *testing.T) {
+	runNormTests(t, "IterNext", func(f Form, out []byte, s string) []byte {
+		return doIterNorm(f, string(append(out, s...)))
+	})
+}
+
+type SegmentTest struct {
+	in  string
+	out []string
+}
+
+var segmentTests = []SegmentTest{
+	{"\u1E0A\u0323a", []string{"\x44\u0323\u0307", "a", ""}},
+	{rep('a', segSize), append(strings.Split(rep('a', segSize), ""), "")},
+	{rep('a', segSize+2), append(strings.Split(rep('a', segSize+2), ""), "")},
+	{rep('a', segSize) + "\u0300aa",
+		append(strings.Split(rep('a', segSize-1), ""), "a\u0300", "a", "a", "")},
+
+	// U+0f73 is NOT treated as a starter as it is a modifier
+	{"a" + grave(29) + "\u0f73", []string{"a" + grave(29), cgj + "\u0f73"}},
+	{"a\u0f73", []string{"a\u0f73"}},
+
+	// U+ff9e is treated as a non-starter.
+	// TODO: should we? Note that this will only affect iteration, as whether
+	// or not we do so does not affect the normalization output and will either
+	// way result in consistent iteration output.
+	{"a" + grave(30) + "\uff9e", []string{"a" + grave(30), cgj + "\uff9e"}},
+	{"a\uff9e", []string{"a\uff9e"}},
+}
+
+var segmentTestsK = []SegmentTest{
+	{"\u3332", []string{"\u30D5", "\u30A1", "\u30E9", "\u30C3", "\u30C8\u3099", ""}},
+	// last segment of multi-segment decomposition needs normalization
+	{"\u3332\u093C", []string{"\u30D5", "\u30A1", "\u30E9", "\u30C3", "\u30C8\u093C\u3099", ""}},
+	{"\u320E", []string{"\x28", "\uAC00", "\x29"}},
+
+	// last segment should be copied to start of buffer.
+	{"\ufdfa", []string{"\u0635", "\u0644", "\u0649", " ", "\u0627", "\u0644", "\u0644", "\u0647", " ", "\u0639", "\u0644", "\u064a", "\u0647", " ", "\u0648", "\u0633", "\u0644", "\u0645", ""}},
+	{"\ufdfa" + grave(30), []string{"\u0635", "\u0644", "\u0649", " ", "\u0627", "\u0644", "\u0644", "\u0647", " ", "\u0639", "\u0644", "\u064a", "\u0647", " ", "\u0648", "\u0633", "\u0644", "\u0645" + grave(30), ""}},
+	{"\uFDFA" + grave(64), []string{"\u0635", "\u0644", "\u0649", " ", "\u0627", "\u0644", "\u0644", "\u0647", " ", "\u0639", "\u0644", "\u064a", "\u0647", " ", "\u0648", "\u0633", "\u0644", "\u0645" + grave(30), cgj + grave(30), cgj + grave(4), ""}},
+
+	// Hangul and Jamo are grouped togeter.
+	{"\uAC00", []string{"\u1100\u1161", ""}},
+	{"\uAC01", []string{"\u1100\u1161\u11A8", ""}},
+	{"\u1100\u1161", []string{"\u1100\u1161", ""}},
+}
+
+// Note that, by design, segmentation is equal for composing and decomposing forms.
+func TestIterSegmentation(t *testing.T) {
+	segmentTest(t, "SegmentTestD", NFD, segmentTests)
+	segmentTest(t, "SegmentTestC", NFC, segmentTests)
+	segmentTest(t, "SegmentTestKD", NFKD, segmentTestsK)
+	segmentTest(t, "SegmentTestKC", NFKC, segmentTestsK)
+}
+
+func segmentTest(t *testing.T, name string, f Form, tests []SegmentTest) {
+	iter := Iter{}
+	for i, tt := range tests {
+		iter.InitString(f, tt.in)
+		for j, seg := range tt.out {
+			if seg == "" {
+				if !iter.Done() {
+					res := string(iter.Next())
+					t.Errorf(`%s:%d:%d: expected Done()==true, found segment %+q`, name, i, j, res)
+				}
+				continue
+			}
+			if iter.Done() {
+				t.Errorf("%s:%d:%d: Done()==true, want false", name, i, j)
+			}
+			seg = f.String(seg)
+			if res := string(iter.Next()); res != seg {
+				t.Errorf(`%s:%d:%d" segment was %+q (%d); want %+q (%d)`, name, i, j, pc(res), len(res), pc(seg), len(seg))
+			}
+		}
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/maketesttables.go

@@ -0,0 +1,45 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+
+// Generate test data for trie code.
+
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	printTestTables()
+}
+
+// We take the smallest, largest and an arbitrary value for each
+// of the UTF-8 sequence lengths.
+var testRunes = []rune{
+	0x01, 0x0C, 0x7F, // 1-byte sequences
+	0x80, 0x100, 0x7FF, // 2-byte sequences
+	0x800, 0x999, 0xFFFF, // 3-byte sequences
+	0x10000, 0x10101, 0x10FFFF, // 4-byte sequences
+	0x200, 0x201, 0x202, 0x210, 0x215, // five entries in one sparse block
+}
+
+const fileHeader = `// Generated by running
+//	maketesttables
+// DO NOT EDIT
+
+package norm
+
+`
+
+func printTestTables() {
+	fmt.Print(fileHeader)
+	fmt.Printf("var testRunes = %#v\n\n", testRunes)
+	t := newNode()
+	for i, r := range testRunes {
+		t.insert(r, uint16(i))
+	}
+	t.printTables("testdata")
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/norm_test.go

@@ -0,0 +1,14 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm_test
+
+import (
+	"testing"
+)
+
+func TestPlaceHolder(t *testing.T) {
+	// Does nothing, just allows the Makefile to be canonical
+	// while waiting for the package itself to be written.
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/normalize.go

@@ -0,0 +1,524 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package norm contains types and functions for normalizing Unicode strings.
+package norm
+
+import "unicode/utf8"
+
+// A Form denotes a canonical representation of Unicode code points.
+// The Unicode-defined normalization and equivalence forms are:
+//
+//   NFC   Unicode Normalization Form C
+//   NFD   Unicode Normalization Form D
+//   NFKC  Unicode Normalization Form KC
+//   NFKD  Unicode Normalization Form KD
+//
+// For a Form f, this documentation uses the notation f(x) to mean
+// the bytes or string x converted to the given form.
+// A position n in x is called a boundary if conversion to the form can
+// proceed independently on both sides:
+//   f(x) == append(f(x[0:n]), f(x[n:])...)
+//
+// References: http://unicode.org/reports/tr15/ and
+// http://unicode.org/notes/tn5/.
+type Form int
+
+const (
+	NFC Form = iota
+	NFD
+	NFKC
+	NFKD
+)
+
+// Bytes returns f(b). May return b if f(b) = b.
+func (f Form) Bytes(b []byte) []byte {
+	src := inputBytes(b)
+	ft := formTable[f]
+	n, ok := ft.quickSpan(src, 0, len(b), true)
+	if ok {
+		return b
+	}
+	out := make([]byte, n, len(b))
+	copy(out, b[0:n])
+	rb := reorderBuffer{f: *ft, src: src, nsrc: len(b), out: out, flushF: appendFlush}
+	return doAppendInner(&rb, n)
+}
+
+// String returns f(s).
+func (f Form) String(s string) string {
+	src := inputString(s)
+	ft := formTable[f]
+	n, ok := ft.quickSpan(src, 0, len(s), true)
+	if ok {
+		return s
+	}
+	out := make([]byte, n, len(s))
+	copy(out, s[0:n])
+	rb := reorderBuffer{f: *ft, src: src, nsrc: len(s), out: out, flushF: appendFlush}
+	return string(doAppendInner(&rb, n))
+}
+
+// IsNormal returns true if b == f(b).
+func (f Form) IsNormal(b []byte) bool {
+	src := inputBytes(b)
+	ft := formTable[f]
+	bp, ok := ft.quickSpan(src, 0, len(b), true)
+	if ok {
+		return true
+	}
+	rb := reorderBuffer{f: *ft, src: src, nsrc: len(b)}
+	rb.setFlusher(nil, cmpNormalBytes)
+	for bp < len(b) {
+		rb.out = b[bp:]
+		if bp = decomposeSegment(&rb, bp, true); bp < 0 {
+			return false
+		}
+		bp, _ = rb.f.quickSpan(rb.src, bp, len(b), true)
+	}
+	return true
+}
+
+func cmpNormalBytes(rb *reorderBuffer) bool {
+	b := rb.out
+	for i := 0; i < rb.nrune; i++ {
+		info := rb.rune[i]
+		if int(info.size) > len(b) {
+			return false
+		}
+		p := info.pos
+		pe := p + info.size
+		for ; p < pe; p++ {
+			if b[0] != rb.byte[p] {
+				return false
+			}
+			b = b[1:]
+		}
+	}
+	return true
+}
+
+// IsNormalString returns true if s == f(s).
+func (f Form) IsNormalString(s string) bool {
+	src := inputString(s)
+	ft := formTable[f]
+	bp, ok := ft.quickSpan(src, 0, len(s), true)
+	if ok {
+		return true
+	}
+	rb := reorderBuffer{f: *ft, src: src, nsrc: len(s)}
+	rb.setFlusher(nil, func(rb *reorderBuffer) bool {
+		for i := 0; i < rb.nrune; i++ {
+			info := rb.rune[i]
+			if bp+int(info.size) > len(s) {
+				return false
+			}
+			p := info.pos
+			pe := p + info.size
+			for ; p < pe; p++ {
+				if s[bp] != rb.byte[p] {
+					return false
+				}
+				bp++
+			}
+		}
+		return true
+	})
+	for bp < len(s) {
+		if bp = decomposeSegment(&rb, bp, true); bp < 0 {
+			return false
+		}
+		bp, _ = rb.f.quickSpan(rb.src, bp, len(s), true)
+	}
+	return true
+}
+
+// patchTail fixes a case where a rune may be incorrectly normalized
+// if it is followed by illegal continuation bytes. It returns the
+// patched buffer and whether the decomposition is still in progress.
+func patchTail(rb *reorderBuffer) bool {
+	info, p := lastRuneStart(&rb.f, rb.out)
+	if p == -1 || info.size == 0 {
+		return true
+	}
+	end := p + int(info.size)
+	extra := len(rb.out) - end
+	if extra > 0 {
+		// Potentially allocating memory. However, this only
+		// happens with ill-formed UTF-8.
+		x := make([]byte, 0)
+		x = append(x, rb.out[len(rb.out)-extra:]...)
+		rb.out = rb.out[:end]
+		decomposeToLastBoundary(rb)
+		rb.doFlush()
+		rb.out = append(rb.out, x...)
+		return false
+	}
+	buf := rb.out[p:]
+	rb.out = rb.out[:p]
+	decomposeToLastBoundary(rb)
+	if s := rb.ss.next(info); s == ssStarter {
+		rb.doFlush()
+		rb.ss.first(info)
+	} else if s == ssOverflow {
+		rb.doFlush()
+		rb.insertCGJ()
+		rb.ss = 0
+	}
+	rb.insertUnsafe(inputBytes(buf), 0, info)
+	return true
+}
+
+func appendQuick(rb *reorderBuffer, i int) int {
+	if rb.nsrc == i {
+		return i
+	}
+	end, _ := rb.f.quickSpan(rb.src, i, rb.nsrc, true)
+	rb.out = rb.src.appendSlice(rb.out, i, end)
+	return end
+}
+
+// Append returns f(append(out, b...)).
+// The buffer out must be nil, empty, or equal to f(out).
+func (f Form) Append(out []byte, src ...byte) []byte {
+	return f.doAppend(out, inputBytes(src), len(src))
+}
+
+func (f Form) doAppend(out []byte, src input, n int) []byte {
+	if n == 0 {
+		return out
+	}
+	ft := formTable[f]
+	// Attempt to do a quickSpan first so we can avoid initializing the reorderBuffer.
+	if len(out) == 0 {
+		p, _ := ft.quickSpan(src, 0, n, true)
+		out = src.appendSlice(out, 0, p)
+		if p == n {
+			return out
+		}
+		rb := reorderBuffer{f: *ft, src: src, nsrc: n, out: out, flushF: appendFlush}
+		return doAppendInner(&rb, p)
+	}
+	rb := reorderBuffer{f: *ft, src: src, nsrc: n}
+	return doAppend(&rb, out, 0)
+}
+
+func doAppend(rb *reorderBuffer, out []byte, p int) []byte {
+	rb.setFlusher(out, appendFlush)
+	src, n := rb.src, rb.nsrc
+	doMerge := len(out) > 0
+	if q := src.skipContinuationBytes(p); q > p {
+		// Move leading non-starters to destination.
+		rb.out = src.appendSlice(rb.out, p, q)
+		p = q
+		doMerge = patchTail(rb)
+	}
+	fd := &rb.f
+	if doMerge {
+		var info Properties
+		if p < n {
+			info = fd.info(src, p)
+			if !info.BoundaryBefore() || info.nLeadingNonStarters() > 0 {
+				if p == 0 {
+					decomposeToLastBoundary(rb)
+				}
+				p = decomposeSegment(rb, p, true)
+			}
+		}
+		if info.size == 0 {
+			rb.doFlush()
+			// Append incomplete UTF-8 encoding.
+			return src.appendSlice(rb.out, p, n)
+		}
+		if rb.nrune > 0 {
+			return doAppendInner(rb, p)
+		}
+	}
+	p = appendQuick(rb, p)
+	return doAppendInner(rb, p)
+}
+
+func doAppendInner(rb *reorderBuffer, p int) []byte {
+	for n := rb.nsrc; p < n; {
+		p = decomposeSegment(rb, p, true)
+		p = appendQuick(rb, p)
+	}
+	return rb.out
+}
+
+// AppendString returns f(append(out, []byte(s))).
+// The buffer out must be nil, empty, or equal to f(out).
+func (f Form) AppendString(out []byte, src string) []byte {
+	return f.doAppend(out, inputString(src), len(src))
+}
+
+// QuickSpan returns a boundary n such that b[0:n] == f(b[0:n]).
+// It is not guaranteed to return the largest such n.
+func (f Form) QuickSpan(b []byte) int {
+	n, _ := formTable[f].quickSpan(inputBytes(b), 0, len(b), true)
+	return n
+}
+
+// quickSpan returns a boundary n such that src[0:n] == f(src[0:n]) and
+// whether any non-normalized parts were found. If atEOF is false, n will
+// not point past the last segment if this segment might be become
+// non-normalized by appending other runes.
+func (f *formInfo) quickSpan(src input, i, end int, atEOF bool) (n int, ok bool) {
+	var lastCC uint8
+	ss := streamSafe(0)
+	lastSegStart := i
+	for n = end; i < n; {
+		if j := src.skipASCII(i, n); i != j {
+			i = j
+			lastSegStart = i - 1
+			lastCC = 0
+			ss = 0
+			continue
+		}
+		info := f.info(src, i)
+		if info.size == 0 {
+			if atEOF {
+				// include incomplete runes
+				return n, true
+			}
+			return lastSegStart, true
+		}
+		// This block needs to be before the next, because it is possible to
+		// have an overflow for runes that are starters (e.g. with U+FF9E).
+		switch ss.next(info) {
+		case ssStarter:
+			ss.first(info)
+			lastSegStart = i
+		case ssOverflow:
+			return lastSegStart, false
+		case ssSuccess:
+			if lastCC > info.ccc {
+				return lastSegStart, false
+			}
+		}
+		if f.composing {
+			if !info.isYesC() {
+				break
+			}
+		} else {
+			if !info.isYesD() {
+				break
+			}
+		}
+		lastCC = info.ccc
+		i += int(info.size)
+	}
+	if i == n {
+		if !atEOF {
+			n = lastSegStart
+		}
+		return n, true
+	}
+	return lastSegStart, false
+}
+
+// QuickSpanString returns a boundary n such that b[0:n] == f(s[0:n]).
+// It is not guaranteed to return the largest such n.
+func (f Form) QuickSpanString(s string) int {
+	n, _ := formTable[f].quickSpan(inputString(s), 0, len(s), true)
+	return n
+}
+
+// FirstBoundary returns the position i of the first boundary in b
+// or -1 if b contains no boundary.
+func (f Form) FirstBoundary(b []byte) int {
+	return f.firstBoundary(inputBytes(b), len(b))
+}
+
+func (f Form) firstBoundary(src input, nsrc int) int {
+	i := src.skipContinuationBytes(0)
+	if i >= nsrc {
+		return -1
+	}
+	fd := formTable[f]
+	ss := streamSafe(0)
+	// We should call ss.first here, but we can't as the first rune is
+	// skipped already. This means FirstBoundary can't really determine
+	// CGJ insertion points correctly. Luckily it doesn't have to.
+	// TODO: consider adding NextBoundary
+	for {
+		info := fd.info(src, i)
+		if info.size == 0 {
+			return -1
+		}
+		if s := ss.next(info); s != ssSuccess {
+			return i
+		}
+		i += int(info.size)
+		if i >= nsrc {
+			if !info.BoundaryAfter() && !ss.isMax() {
+				return -1
+			}
+			return nsrc
+		}
+	}
+}
+
+// FirstBoundaryInString returns the position i of the first boundary in s
+// or -1 if s contains no boundary.
+func (f Form) FirstBoundaryInString(s string) int {
+	return f.firstBoundary(inputString(s), len(s))
+}
+
+// LastBoundary returns the position i of the last boundary in b
+// or -1 if b contains no boundary.
+func (f Form) LastBoundary(b []byte) int {
+	return lastBoundary(formTable[f], b)
+}
+
+func lastBoundary(fd *formInfo, b []byte) int {
+	i := len(b)
+	info, p := lastRuneStart(fd, b)
+	if p == -1 {
+		return -1
+	}
+	if info.size == 0 { // ends with incomplete rune
+		if p == 0 { // starts with incomplete rune
+			return -1
+		}
+		i = p
+		info, p = lastRuneStart(fd, b[:i])
+		if p == -1 { // incomplete UTF-8 encoding or non-starter bytes without a starter
+			return i
+		}
+	}
+	if p+int(info.size) != i { // trailing non-starter bytes: illegal UTF-8
+		return i
+	}
+	if info.BoundaryAfter() {
+		return i
+	}
+	ss := streamSafe(0)
+	v := ss.backwards(info)
+	for i = p; i >= 0 && v != ssStarter; i = p {
+		info, p = lastRuneStart(fd, b[:i])
+		if v = ss.backwards(info); v == ssOverflow {
+			break
+		}
+		if p+int(info.size) != i {
+			if p == -1 { // no boundary found
+				return -1
+			}
+			return i // boundary after an illegal UTF-8 encoding
+		}
+	}
+	return i
+}
+
+// decomposeSegment scans the first segment in src into rb. It inserts 0x034f
+// (Grapheme Joiner) when it encounters a sequence of more than 30 non-starters
+// and returns the number of bytes consumed from src or iShortDst or iShortSrc.
+func decomposeSegment(rb *reorderBuffer, sp int, atEOF bool) int {
+	// Force one character to be consumed.
+	info := rb.f.info(rb.src, sp)
+	if info.size == 0 {
+		return 0
+	}
+	if rb.nrune > 0 {
+		if s := rb.ss.next(info); s == ssStarter {
+			goto end
+		} else if s == ssOverflow {
+			rb.insertCGJ()
+			goto end
+		}
+	} else {
+		rb.ss.first(info)
+	}
+	if err := rb.insertFlush(rb.src, sp, info); err != iSuccess {
+		return int(err)
+	}
+	for {
+		sp += int(info.size)
+		if sp >= rb.nsrc {
+			if !atEOF && !info.BoundaryAfter() {
+				return int(iShortSrc)
+			}
+			break
+		}
+		info = rb.f.info(rb.src, sp)
+		if info.size == 0 {
+			if !atEOF {
+				return int(iShortSrc)
+			}
+			break
+		}
+		if s := rb.ss.next(info); s == ssStarter {
+			break
+		} else if s == ssOverflow {
+			rb.insertCGJ()
+			break
+		}
+		if err := rb.insertFlush(rb.src, sp, info); err != iSuccess {
+			return int(err)
+		}
+	}
+end:
+	if !rb.doFlush() {
+		return int(iShortDst)
+	}
+	return sp
+}
+
+// lastRuneStart returns the runeInfo and position of the last
+// rune in buf or the zero runeInfo and -1 if no rune was found.
+func lastRuneStart(fd *formInfo, buf []byte) (Properties, int) {
+	p := len(buf) - 1
+	for ; p >= 0 && !utf8.RuneStart(buf[p]); p-- {
+	}
+	if p < 0 {
+		return Properties{}, -1
+	}
+	return fd.info(inputBytes(buf), p), p
+}
+
+// decomposeToLastBoundary finds an open segment at the end of the buffer
+// and scans it into rb. Returns the buffer minus the last segment.
+func decomposeToLastBoundary(rb *reorderBuffer) {
+	fd := &rb.f
+	info, i := lastRuneStart(fd, rb.out)
+	if int(info.size) != len(rb.out)-i {
+		// illegal trailing continuation bytes
+		return
+	}
+	if info.BoundaryAfter() {
+		return
+	}
+	var add [maxNonStarters + 1]Properties // stores runeInfo in reverse order
+	padd := 0
+	ss := streamSafe(0)
+	p := len(rb.out)
+	for {
+		add[padd] = info
+		v := ss.backwards(info)
+		if v == ssOverflow {
+			// Note that if we have an overflow, it the string we are appending to
+			// is not correctly normalized. In this case the behavior is undefined.
+			break
+		}
+		padd++
+		p -= int(info.size)
+		if v == ssStarter || p < 0 {
+			break
+		}
+		info, i = lastRuneStart(fd, rb.out[:p])
+		if int(info.size) != p-i {
+			break
+		}
+	}
+	rb.ss = ss
+	// Copy bytes for insertion as we may need to overwrite rb.out.
+	var buf [maxBufferSize * utf8.UTFMax]byte
+	cp := buf[:copy(buf[:], rb.out[p:])]
+	rb.out = rb.out[:p]
+	for padd--; padd >= 0; padd-- {
+		info = add[padd]
+		rb.insertUnsafe(inputBytes(cp), 0, info)
+		cp = cp[info.size:]
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/normregtest.go

@@ -0,0 +1,318 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+
+package main
+
+import (
+	"bufio"
+	"bytes"
+	"flag"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"path"
+	"regexp"
+	"runtime"
+	"strconv"
+	"strings"
+	"time"
+	"unicode"
+	"unicode/utf8"
+
+	"code.google.com/p/go.text/unicode/norm"
+)
+
+func main() {
+	flag.Parse()
+	loadTestData()
+	CharacterByCharacterTests()
+	StandardTests()
+	PerformanceTest()
+	if errorCount == 0 {
+		fmt.Println("PASS")
+	}
+}
+
+const file = "NormalizationTest.txt"
+
+var url = flag.String("url",
+	"http://www.unicode.org/Public/"+unicode.Version+"/ucd/"+file,
+	"URL of Unicode database directory")
+var localFiles = flag.Bool("local",
+	false,
+	"data files have been copied to the current directory; for debugging only")
+
+var logger = log.New(os.Stderr, "", log.Lshortfile)
+
+// This regression test runs the test set in NormalizationTest.txt
+// (taken from http://www.unicode.org/Public/<unicode.Version>/ucd/).
+//
+// NormalizationTest.txt has form:
+// @Part0 # Specific cases
+// #
+// 1E0A;1E0A;0044 0307;1E0A;0044 0307; # (Ḋ; Ḋ; D◌̇; Ḋ; D◌̇; ) LATIN CAPITAL LETTER D WITH DOT ABOVE
+// 1E0C;1E0C;0044 0323;1E0C;0044 0323; # (Ḍ; Ḍ; D◌̣; Ḍ; D◌̣; ) LATIN CAPITAL LETTER D WITH DOT BELOW
+//
+// Each test has 5 columns (c1, c2, c3, c4, c5), where
+// (c1, c2, c3, c4, c5) == (c1, NFC(c1), NFD(c1), NFKC(c1), NFKD(c1))
+//
+// CONFORMANCE:
+// 1. The following invariants must be true for all conformant implementations
+//
+//    NFC
+//      c2 ==  NFC(c1) ==  NFC(c2) ==  NFC(c3)
+//      c4 ==  NFC(c4) ==  NFC(c5)
+//
+//    NFD
+//      c3 ==  NFD(c1) ==  NFD(c2) ==  NFD(c3)
+//      c5 ==  NFD(c4) ==  NFD(c5)
+//
+//    NFKC
+//      c4 == NFKC(c1) == NFKC(c2) == NFKC(c3) == NFKC(c4) == NFKC(c5)
+//
+//    NFKD
+//      c5 == NFKD(c1) == NFKD(c2) == NFKD(c3) == NFKD(c4) == NFKD(c5)
+//
+// 2. For every code point X assigned in this version of Unicode that is not
+//    specifically listed in Part 1, the following invariants must be true
+//    for all conformant implementations:
+//
+//      X == NFC(X) == NFD(X) == NFKC(X) == NFKD(X)
+//
+
+// Column types.
+const (
+	cRaw = iota
+	cNFC
+	cNFD
+	cNFKC
+	cNFKD
+	cMaxColumns
+)
+
+// Holds data from NormalizationTest.txt
+var part []Part
+
+type Part struct {
+	name   string
+	number int
+	tests  []Test
+}
+
+type Test struct {
+	name   string
+	partnr int
+	number int
+	r      rune                // used for character by character test
+	cols   [cMaxColumns]string // Each has 5 entries, see below.
+}
+
+func (t Test) Name() string {
+	if t.number < 0 {
+		return part[t.partnr].name
+	}
+	return fmt.Sprintf("%s:%d", part[t.partnr].name, t.number)
+}
+
+var partRe = regexp.MustCompile(`@Part(\d) # (.*)$`)
+var testRe = regexp.MustCompile(`^` + strings.Repeat(`([\dA-F ]+);`, 5) + ` # (.*)$`)
+
+var counter int
+
+// Load the data form NormalizationTest.txt
+func loadTestData() {
+	if *localFiles {
+		pwd, _ := os.Getwd()
+		*url = "file://" + path.Join(pwd, file)
+	}
+	t := &http.Transport{}
+	t.RegisterProtocol("file", http.NewFileTransport(http.Dir("/")))
+	c := &http.Client{Transport: t}
+	resp, err := c.Get(*url)
+	if err != nil {
+		logger.Fatal(err)
+	}
+	if resp.StatusCode != 200 {
+		logger.Fatal("bad GET status for "+file, resp.Status)
+	}
+	f := resp.Body
+	defer f.Close()
+	scanner := bufio.NewScanner(f)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if len(line) == 0 || line[0] == '#' {
+			continue
+		}
+		m := partRe.FindStringSubmatch(line)
+		if m != nil {
+			if len(m) < 3 {
+				logger.Fatal("Failed to parse Part: ", line)
+			}
+			i, err := strconv.Atoi(m[1])
+			if err != nil {
+				logger.Fatal(err)
+			}
+			name := m[2]
+			part = append(part, Part{name: name[:len(name)-1], number: i})
+			continue
+		}
+		m = testRe.FindStringSubmatch(line)
+		if m == nil || len(m) < 7 {
+			logger.Fatalf(`Failed to parse: "%s" result: %#v`, line, m)
+		}
+		test := Test{name: m[6], partnr: len(part) - 1, number: counter}
+		counter++
+		for j := 1; j < len(m)-1; j++ {
+			for _, split := range strings.Split(m[j], " ") {
+				r, err := strconv.ParseUint(split, 16, 64)
+				if err != nil {
+					logger.Fatal(err)
+				}
+				if test.r == 0 {
+					// save for CharacterByCharacterTests
+					test.r = rune(r)
+				}
+				var buf [utf8.UTFMax]byte
+				sz := utf8.EncodeRune(buf[:], rune(r))
+				test.cols[j-1] += string(buf[:sz])
+			}
+		}
+		part := &part[len(part)-1]
+		part.tests = append(part.tests, test)
+	}
+	if scanner.Err() != nil {
+		logger.Fatal(scanner.Err())
+	}
+}
+
+var fstr = []string{"NFC", "NFD", "NFKC", "NFKD"}
+
+var errorCount int
+
+func cmpResult(t *Test, name string, f norm.Form, gold, test, result string) {
+	if gold != result {
+		errorCount++
+		if errorCount > 20 {
+			return
+		}
+		logger.Printf("%s:%s: %s(%+q)=%+q; want %+q: %s",
+			t.Name(), name, fstr[f], test, result, gold, t.name)
+	}
+}
+
+func cmpIsNormal(t *Test, name string, f norm.Form, test string, result, want bool) {
+	if result != want {
+		errorCount++
+		if errorCount > 20 {
+			return
+		}
+		logger.Printf("%s:%s: %s(%+q)=%v; want %v", t.Name(), name, fstr[f], test, result, want)
+	}
+}
+
+func doTest(t *Test, f norm.Form, gold, test string) {
+	testb := []byte(test)
+	result := f.Bytes(testb)
+	cmpResult(t, "Bytes", f, gold, test, string(result))
+
+	sresult := f.String(test)
+	cmpResult(t, "String", f, gold, test, sresult)
+
+	acc := []byte{}
+	i := norm.Iter{}
+	i.InitString(f, test)
+	for !i.Done() {
+		acc = append(acc, i.Next()...)
+	}
+	cmpResult(t, "Iter.Next", f, gold, test, string(acc))
+
+	buf := make([]byte, 128)
+	acc = nil
+	for p := 0; p < len(testb); {
+		nDst, nSrc, _ := f.Transform(buf, testb[p:], true)
+		acc = append(acc, buf[:nDst]...)
+		p += nSrc
+	}
+	cmpResult(t, "Transform", f, gold, test, string(acc))
+
+	for i := range test {
+		out := f.Append(f.Bytes([]byte(test[:i])), []byte(test[i:])...)
+		cmpResult(t, fmt.Sprintf(":Append:%d", i), f, gold, test, string(out))
+	}
+	cmpIsNormal(t, "IsNormal", f, test, f.IsNormal([]byte(test)), test == gold)
+	cmpIsNormal(t, "IsNormalString", f, test, f.IsNormalString(test), test == gold)
+}
+
+func doConformanceTests(t *Test, partn int) {
+	for i := 0; i <= 2; i++ {
+		doTest(t, norm.NFC, t.cols[1], t.cols[i])
+		doTest(t, norm.NFD, t.cols[2], t.cols[i])
+		doTest(t, norm.NFKC, t.cols[3], t.cols[i])
+		doTest(t, norm.NFKD, t.cols[4], t.cols[i])
+	}
+	for i := 3; i <= 4; i++ {
+		doTest(t, norm.NFC, t.cols[3], t.cols[i])
+		doTest(t, norm.NFD, t.cols[4], t.cols[i])
+		doTest(t, norm.NFKC, t.cols[3], t.cols[i])
+		doTest(t, norm.NFKD, t.cols[4], t.cols[i])
+	}
+}
+
+func CharacterByCharacterTests() {
+	tests := part[1].tests
+	var last rune = 0
+	for i := 0; i <= len(tests); i++ { // last one is special case
+		var r rune
+		if i == len(tests) {
+			r = 0x2FA1E // Don't have to go to 0x10FFFF
+		} else {
+			r = tests[i].r
+		}
+		for last++; last < r; last++ {
+			// Check all characters that were not explicitly listed in the test.
+			t := &Test{partnr: 1, number: -1}
+			char := string(last)
+			doTest(t, norm.NFC, char, char)
+			doTest(t, norm.NFD, char, char)
+			doTest(t, norm.NFKC, char, char)
+			doTest(t, norm.NFKD, char, char)
+		}
+		if i < len(tests) {
+			doConformanceTests(&tests[i], 1)
+		}
+	}
+}
+
+func StandardTests() {
+	for _, j := range []int{0, 2, 3} {
+		for _, test := range part[j].tests {
+			doConformanceTests(&test, j)
+		}
+	}
+}
+
+// PerformanceTest verifies that normalization is O(n). If any of the
+// code does not properly check for maxCombiningChars, normalization
+// may exhibit O(n**2) behavior.
+func PerformanceTest() {
+	runtime.GOMAXPROCS(2)
+	success := make(chan bool, 1)
+	go func() {
+		buf := bytes.Repeat([]byte("\u035D"), 1024*1024)
+		buf = append(buf, "\u035B"...)
+		norm.NFC.Append(nil, buf...)
+		success <- true
+	}()
+	timeout := time.After(1 * time.Second)
+	select {
+	case <-success:
+		// test completed before the timeout
+	case <-timeout:
+		errorCount++
+		logger.Printf(`unexpectedly long time to complete PerformanceTest`)
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/readwriter.go

@@ -0,0 +1,126 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import "io"
+
+type normWriter struct {
+	rb  reorderBuffer
+	w   io.Writer
+	buf []byte
+}
+
+// Write implements the standard write interface.  If the last characters are
+// not at a normalization boundary, the bytes will be buffered for the next
+// write. The remaining bytes will be written on close.
+func (w *normWriter) Write(data []byte) (n int, err error) {
+	// Process data in pieces to keep w.buf size bounded.
+	const chunk = 4000
+
+	for len(data) > 0 {
+		// Normalize into w.buf.
+		m := len(data)
+		if m > chunk {
+			m = chunk
+		}
+		w.rb.src = inputBytes(data[:m])
+		w.rb.nsrc = m
+		w.buf = doAppend(&w.rb, w.buf, 0)
+		data = data[m:]
+		n += m
+
+		// Write out complete prefix, save remainder.
+		// Note that lastBoundary looks back at most 31 runes.
+		i := lastBoundary(&w.rb.f, w.buf)
+		if i == -1 {
+			i = 0
+		}
+		if i > 0 {
+			if _, err = w.w.Write(w.buf[:i]); err != nil {
+				break
+			}
+			bn := copy(w.buf, w.buf[i:])
+			w.buf = w.buf[:bn]
+		}
+	}
+	return n, err
+}
+
+// Close forces data that remains in the buffer to be written.
+func (w *normWriter) Close() error {
+	if len(w.buf) > 0 {
+		_, err := w.w.Write(w.buf)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// Writer returns a new writer that implements Write(b)
+// by writing f(b) to w.  The returned writer may use an
+// an internal buffer to maintain state across Write calls.
+// Calling its Close method writes any buffered data to w.
+func (f Form) Writer(w io.Writer) io.WriteCloser {
+	wr := &normWriter{rb: reorderBuffer{}, w: w}
+	wr.rb.init(f, nil)
+	return wr
+}
+
+type normReader struct {
+	rb           reorderBuffer
+	r            io.Reader
+	inbuf        []byte
+	outbuf       []byte
+	bufStart     int
+	lastBoundary int
+	err          error
+}
+
+// Read implements the standard read interface.
+func (r *normReader) Read(p []byte) (int, error) {
+	for {
+		if r.lastBoundary-r.bufStart > 0 {
+			n := copy(p, r.outbuf[r.bufStart:r.lastBoundary])
+			r.bufStart += n
+			if r.lastBoundary-r.bufStart > 0 {
+				return n, nil
+			}
+			return n, r.err
+		}
+		if r.err != nil {
+			return 0, r.err
+		}
+		outn := copy(r.outbuf, r.outbuf[r.lastBoundary:])
+		r.outbuf = r.outbuf[0:outn]
+		r.bufStart = 0
+
+		n, err := r.r.Read(r.inbuf)
+		r.rb.src = inputBytes(r.inbuf[0:n])
+		r.rb.nsrc, r.err = n, err
+		if n > 0 {
+			r.outbuf = doAppend(&r.rb, r.outbuf, 0)
+		}
+		if err == io.EOF {
+			r.lastBoundary = len(r.outbuf)
+		} else {
+			r.lastBoundary = lastBoundary(&r.rb.f, r.outbuf)
+			if r.lastBoundary == -1 {
+				r.lastBoundary = 0
+			}
+		}
+	}
+	panic("should not reach here")
+}
+
+// Reader returns a new reader that implements Read
+// by reading data from r and returning f(data).
+func (f Form) Reader(r io.Reader) io.Reader {
+	const chunk = 4000
+	buf := make([]byte, chunk)
+	rr := &normReader{rb: reorderBuffer{}, r: r, inbuf: buf}
+	rr.rb.init(f, buf)
+	return rr
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/readwriter_test.go

@@ -0,0 +1,56 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import (
+	"bytes"
+	"fmt"
+	"testing"
+)
+
+var bufSizes = []int{1, 2, 3, 4, 5, 6, 7, 8, 100, 101, 102, 103, 4000, 4001, 4002, 4003}
+
+func readFunc(size int) appendFunc {
+	return func(f Form, out []byte, s string) []byte {
+		out = append(out, s...)
+		r := f.Reader(bytes.NewBuffer(out))
+		buf := make([]byte, size)
+		result := []byte{}
+		for n, err := 0, error(nil); err == nil; {
+			n, err = r.Read(buf)
+			result = append(result, buf[:n]...)
+		}
+		return result
+	}
+}
+
+func TestReader(t *testing.T) {
+	for _, s := range bufSizes {
+		name := fmt.Sprintf("TestReader%d", s)
+		runNormTests(t, name, readFunc(s))
+	}
+}
+
+func writeFunc(size int) appendFunc {
+	return func(f Form, out []byte, s string) []byte {
+		in := append(out, s...)
+		result := new(bytes.Buffer)
+		w := f.Writer(result)
+		buf := make([]byte, size)
+		for n := 0; len(in) > 0; in = in[n:] {
+			n = copy(buf, in)
+			_, _ = w.Write(buf[:n])
+		}
+		w.Close()
+		return result.Bytes()
+	}
+}
+
+func TestWriter(t *testing.T) {
+	for _, s := range bufSizes {
+		name := fmt.Sprintf("TestWriter%d", s)
+		runNormTests(t, name, writeFunc(s))
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/transform.go

@@ -0,0 +1,85 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import (
+	"unicode/utf8"
+
+	"code.google.com/p/go.text/transform"
+)
+
+// Transform implements the transform.Transformer interface. It may need to
+// write segments of up to MaxSegmentSize at once. Users should either catch
+// ErrShortDst and allow dst to grow or have dst be at least of size
+// MaxTransformChunkSize to be guaranteed of progress.
+func (f Form) Transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
+	n := 0
+	// Cap the maximum number of src bytes to check.
+	b := src
+	eof := atEOF
+	if ns := len(dst); ns < len(b) {
+		err = transform.ErrShortDst
+		eof = false
+		b = b[:ns]
+	}
+	i, ok := formTable[f].quickSpan(inputBytes(b), n, len(b), eof)
+	n += copy(dst[n:], b[n:i])
+	if !ok {
+		nDst, nSrc, err = f.transform(dst[n:], src[n:], atEOF)
+		return nDst + n, nSrc + n, err
+	}
+	if n < len(src) && !atEOF {
+		err = transform.ErrShortSrc
+	}
+	return n, n, err
+}
+
+func flushTransform(rb *reorderBuffer) bool {
+	// Write out (must fully fit in dst, or else it is a ErrShortDst).
+	if len(rb.out) < rb.nrune*utf8.UTFMax {
+		return false
+	}
+	rb.out = rb.out[rb.flushCopy(rb.out):]
+	return true
+}
+
+var errs = []error{nil, transform.ErrShortDst, transform.ErrShortSrc}
+
+// transform implements the transform.Transformer interface. It is only called
+// when quickSpan does not pass for a given string.
+func (f Form) transform(dst, src []byte, atEOF bool) (nDst, nSrc int, err error) {
+	// TODO: get rid of reorderBuffer. See CL 23460044.
+	rb := reorderBuffer{}
+	rb.init(f, src)
+	for {
+		// Load segment into reorder buffer.
+		rb.setFlusher(dst[nDst:], flushTransform)
+		end := decomposeSegment(&rb, nSrc, atEOF)
+		if end < 0 {
+			return nDst, nSrc, errs[-end]
+		}
+		nDst = len(dst) - len(rb.out)
+		nSrc = end
+
+		// Next quickSpan.
+		end = rb.nsrc
+		eof := atEOF
+		if n := nSrc + len(dst) - nDst; n < end {
+			err = transform.ErrShortDst
+			end = n
+			eof = false
+		}
+		end, ok := rb.f.quickSpan(rb.src, nSrc, end, eof)
+		n := copy(dst[nDst:], rb.src.bytes[nSrc:end])
+		nSrc += n
+		nDst += n
+		if ok {
+			if n < rb.nsrc && !atEOF {
+				err = transform.ErrShortSrc
+			}
+			return nDst, nSrc, err
+		}
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/transform_test.go

@@ -0,0 +1,101 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import (
+	"fmt"
+	"testing"
+
+	"code.google.com/p/go.text/transform"
+)
+
+func TestTransform(t *testing.T) {
+	tests := []struct {
+		f       Form
+		in, out string
+		eof     bool
+		dstSize int
+		err     error
+	}{
+		{NFC, "ab", "ab", true, 2, nil},
+		{NFC, "qx", "qx", true, 2, nil},
+		{NFD, "qx", "qx", true, 2, nil},
+		{NFC, "", "", true, 1, nil},
+		{NFD, "", "", true, 1, nil},
+		{NFC, "", "", false, 1, nil},
+		{NFD, "", "", false, 1, nil},
+
+		// Normalized segment does not fit in destination.
+		{NFD, "ö", "", true, 1, transform.ErrShortDst},
+		{NFD, "ö", "", true, 2, transform.ErrShortDst},
+
+		// As an artifact of the algorithm, only full segments are written.
+		// This is not strictly required, and some bytes could be written.
+		// In practice, for Transform to not block, the destination buffer
+		// should be at least MaxSegmentSize to work anyway and these edge
+		// conditions will be relatively rare.
+		{NFC, "ab", "", true, 1, transform.ErrShortDst},
+		// This is even true for inert runes.
+		{NFC, "qx", "", true, 1, transform.ErrShortDst},
+		{NFC, "a\u0300abc", "\u00e0a", true, 4, transform.ErrShortDst},
+
+		// We cannot write a segment if succesive runes could still change the result.
+		{NFD, "ö", "", false, 3, transform.ErrShortSrc},
+		{NFC, "a\u0300", "", false, 4, transform.ErrShortSrc},
+		{NFD, "a\u0300", "", false, 4, transform.ErrShortSrc},
+		{NFC, "ö", "", false, 3, transform.ErrShortSrc},
+
+		{NFC, "a\u0300", "", true, 1, transform.ErrShortDst},
+		// Theoretically could fit, but won't due to simplified checks.
+		{NFC, "a\u0300", "", true, 2, transform.ErrShortDst},
+		{NFC, "a\u0300", "", true, 3, transform.ErrShortDst},
+		{NFC, "a\u0300", "\u00e0", true, 4, nil},
+
+		{NFD, "öa\u0300", "o\u0308", false, 8, transform.ErrShortSrc},
+		{NFD, "öa\u0300ö", "o\u0308a\u0300", true, 8, transform.ErrShortDst},
+		{NFD, "öa\u0300ö", "o\u0308a\u0300", false, 12, transform.ErrShortSrc},
+
+		// Illegal input is copied verbatim.
+		{NFD, "\xbd\xb2=\xbc ", "\xbd\xb2=\xbc ", true, 8, nil},
+	}
+	b := make([]byte, 100)
+	for i, tt := range tests {
+		nDst, _, err := tt.f.Transform(b[:tt.dstSize], []byte(tt.in), tt.eof)
+		out := string(b[:nDst])
+		if out != tt.out || err != tt.err {
+			t.Errorf("%d: was %+q (%v); want %+q (%v)", i, out, err, tt.out, tt.err)
+		}
+		if want := tt.f.String(tt.in)[:nDst]; want != out {
+			t.Errorf("%d: incorect normalization: was %+q; want %+q", i, out, want)
+		}
+	}
+}
+
+var transBufSizes = []int{
+	MaxTransformChunkSize,
+	3 * MaxTransformChunkSize / 2,
+	2 * MaxTransformChunkSize,
+	3 * MaxTransformChunkSize,
+	100 * MaxTransformChunkSize,
+}
+
+func doTransNorm(f Form, buf []byte, b []byte) []byte {
+	acc := []byte{}
+	for p := 0; p < len(b); {
+		nd, ns, _ := f.Transform(buf[:], b[p:], true)
+		p += ns
+		acc = append(acc, buf[:nd]...)
+	}
+	return acc
+}
+
+func TestTransformNorm(t *testing.T) {
+	for _, sz := range transBufSizes {
+		buf := make([]byte, sz)
+		runNormTests(t, fmt.Sprintf("Transform:%d", sz), func(f Form, out []byte, s string) []byte {
+			return doTransNorm(f, buf, append(out, s...))
+		})
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/trie.go

@@ -0,0 +1,232 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+type valueRange struct {
+	value  uint16 // header: value:stride
+	lo, hi byte   // header: lo:n
+}
+
+type trie struct {
+	index        []uint8
+	values       []uint16
+	sparse       []valueRange
+	sparseOffset []uint16
+	cutoff       uint8 // indices >= cutoff are sparse
+}
+
+// lookupValue determines the type of block n and looks up the value for b.
+// For n < t.cutoff, the block is a simple lookup table. Otherwise, the block
+// is a list of ranges with an accompanying value. Given a matching range r,
+// the value for b is by r.value + (b - r.lo) * stride.
+func (t *trie) lookupValue(n uint8, b byte) uint16 {
+	if n < t.cutoff {
+		return t.values[uint16(n)<<6+uint16(b)]
+	}
+	offset := t.sparseOffset[n-t.cutoff]
+	header := t.sparse[offset]
+	lo := offset + 1
+	hi := lo + uint16(header.lo)
+	for lo < hi {
+		m := lo + (hi-lo)/2
+		r := t.sparse[m]
+		if r.lo <= b && b <= r.hi {
+			return r.value + uint16(b-r.lo)*header.value
+		}
+		if b < r.lo {
+			hi = m
+		} else {
+			lo = m + 1
+		}
+	}
+	return 0
+}
+
+const (
+	t1 = 0x00 // 0000 0000
+	tx = 0x80 // 1000 0000
+	t2 = 0xC0 // 1100 0000
+	t3 = 0xE0 // 1110 0000
+	t4 = 0xF0 // 1111 0000
+	t5 = 0xF8 // 1111 1000
+	t6 = 0xFC // 1111 1100
+	te = 0xFE // 1111 1110
+)
+
+// lookup returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *trie) lookup(s []byte) (v uint16, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < tx:
+		return t.values[c0], 1
+	case c0 < t2:
+		return 0, 1
+	case c0 < t3:
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		return t.lookupValue(i, c1), 2
+	case c0 < t4:
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		o := uint16(i)<<6 + uint16(c1)
+		i = t.index[o]
+		c2 := s[2]
+		if c2 < tx || t2 <= c2 {
+			return 0, 2
+		}
+		return t.lookupValue(i, c2), 3
+	case c0 < t5:
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		o := uint16(i)<<6 + uint16(c1)
+		i = t.index[o]
+		c2 := s[2]
+		if c2 < tx || t2 <= c2 {
+			return 0, 2
+		}
+		o = uint16(i)<<6 + uint16(c2)
+		i = t.index[o]
+		c3 := s[3]
+		if c3 < tx || t2 <= c3 {
+			return 0, 3
+		}
+		return t.lookupValue(i, c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupString returns the trie value for the first UTF-8 encoding in s and
+// the width in bytes of this encoding. The size will be 0 if s does not
+// hold enough bytes to complete the encoding. len(s) must be greater than 0.
+func (t *trie) lookupString(s string) (v uint16, sz int) {
+	c0 := s[0]
+	switch {
+	case c0 < tx:
+		return t.values[c0], 1
+	case c0 < t2:
+		return 0, 1
+	case c0 < t3:
+		if len(s) < 2 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		return t.lookupValue(i, c1), 2
+	case c0 < t4:
+		if len(s) < 3 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		o := uint16(i)<<6 + uint16(c1)
+		i = t.index[o]
+		c2 := s[2]
+		if c2 < tx || t2 <= c2 {
+			return 0, 2
+		}
+		return t.lookupValue(i, c2), 3
+	case c0 < t5:
+		if len(s) < 4 {
+			return 0, 0
+		}
+		i := t.index[c0]
+		c1 := s[1]
+		if c1 < tx || t2 <= c1 {
+			return 0, 1
+		}
+		o := uint16(i)<<6 + uint16(c1)
+		i = t.index[o]
+		c2 := s[2]
+		if c2 < tx || t2 <= c2 {
+			return 0, 2
+		}
+		o = uint16(i)<<6 + uint16(c2)
+		i = t.index[o]
+		c3 := s[3]
+		if c3 < tx || t2 <= c3 {
+			return 0, 3
+		}
+		return t.lookupValue(i, c3), 4
+	}
+	// Illegal rune
+	return 0, 1
+}
+
+// lookupUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must hold a full encoding.
+func (t *trie) lookupUnsafe(s []byte) uint16 {
+	c0 := s[0]
+	if c0 < tx {
+		return t.values[c0]
+	}
+	if c0 < t2 {
+		return 0
+	}
+	i := t.index[c0]
+	if c0 < t3 {
+		return t.lookupValue(i, s[1])
+	}
+	i = t.index[uint16(i)<<6+uint16(s[1])]
+	if c0 < t4 {
+		return t.lookupValue(i, s[2])
+	}
+	i = t.index[uint16(i)<<6+uint16(s[2])]
+	if c0 < t5 {
+		return t.lookupValue(i, s[3])
+	}
+	return 0
+}
+
+// lookupStringUnsafe returns the trie value for the first UTF-8 encoding in s.
+// s must hold a full encoding.
+func (t *trie) lookupStringUnsafe(s string) uint16 {
+	c0 := s[0]
+	if c0 < tx {
+		return t.values[c0]
+	}
+	if c0 < t2 {
+		return 0
+	}
+	i := t.index[c0]
+	if c0 < t3 {
+		return t.lookupValue(i, s[1])
+	}
+	i = t.index[uint16(i)<<6+uint16(s[1])]
+	if c0 < t4 {
+		return t.lookupValue(i, s[2])
+	}
+	i = t.index[uint16(i)<<6+uint16(s[2])]
+	if c0 < t5 {
+		return t.lookupValue(i, s[3])
+	}
+	return 0
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/trie_test.go

@@ -0,0 +1,152 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package norm
+
+import (
+	"testing"
+	"unicode/utf8"
+)
+
+// Test data is located in triedata_test.go; generated by maketesttables.
+var testdata = testdataTrie
+
+type rangeTest struct {
+	block   uint8
+	lookup  byte
+	result  uint16
+	table   []valueRange
+	offsets []uint16
+}
+
+var range1Off = []uint16{0, 2}
+var range1 = []valueRange{
+	{0, 1, 0},
+	{1, 0x80, 0x80},
+	{0, 2, 0},
+	{1, 0x80, 0x80},
+	{9, 0xff, 0xff},
+}
+
+var rangeTests = []rangeTest{
+	{10, 0x80, 1, range1, range1Off},
+	{10, 0x00, 0, range1, range1Off},
+	{11, 0x80, 1, range1, range1Off},
+	{11, 0xff, 9, range1, range1Off},
+	{11, 0x00, 0, range1, range1Off},
+}
+
+func TestLookupSparse(t *testing.T) {
+	for i, test := range rangeTests {
+		n := trie{sparse: test.table, sparseOffset: test.offsets, cutoff: 10}
+		v := n.lookupValue(test.block, test.lookup)
+		if v != test.result {
+			t.Errorf("LookupSparse:%d: found %X; want %X", i, v, test.result)
+		}
+	}
+}
+
+// Test cases for illegal runes.
+type trietest struct {
+	size  int
+	bytes []byte
+}
+
+var tests = []trietest{
+	// illegal runes
+	{1, []byte{0x80}},
+	{1, []byte{0xFF}},
+	{1, []byte{t2, tx - 1}},
+	{1, []byte{t2, t2}},
+	{2, []byte{t3, tx, tx - 1}},
+	{2, []byte{t3, tx, t2}},
+	{1, []byte{t3, tx - 1, tx}},
+	{3, []byte{t4, tx, tx, tx - 1}},
+	{3, []byte{t4, tx, tx, t2}},
+	{1, []byte{t4, t2, tx, tx - 1}},
+	{2, []byte{t4, tx, t2, tx - 1}},
+
+	// short runes
+	{0, []byte{t2}},
+	{0, []byte{t3, tx}},
+	{0, []byte{t4, tx, tx}},
+
+	// we only support UTF-8 up to utf8.UTFMax bytes (4 bytes)
+	{1, []byte{t5, tx, tx, tx, tx}},
+	{1, []byte{t6, tx, tx, tx, tx, tx}},
+}
+
+func mkUTF8(r rune) ([]byte, int) {
+	var b [utf8.UTFMax]byte
+	sz := utf8.EncodeRune(b[:], r)
+	return b[:sz], sz
+}
+
+func TestLookup(t *testing.T) {
+	for i, tt := range testRunes {
+		b, szg := mkUTF8(tt)
+		v, szt := testdata.lookup(b)
+		if int(v) != i {
+			t.Errorf("lookup(%U): found value %#x, expected %#x", tt, v, i)
+		}
+		if szt != szg {
+			t.Errorf("lookup(%U): found size %d, expected %d", tt, szt, szg)
+		}
+	}
+	for i, tt := range tests {
+		v, sz := testdata.lookup(tt.bytes)
+		if v != 0 {
+			t.Errorf("lookup of illegal rune, case %d: found value %#x, expected 0", i, v)
+		}
+		if sz != tt.size {
+			t.Errorf("lookup of illegal rune, case %d: found size %d, expected %d", i, sz, tt.size)
+		}
+	}
+	// Verify defaults.
+	if v, _ := testdata.lookup([]byte{0xC1, 0x8C}); v != 0 {
+		t.Errorf("lookup of non-existing rune should be 0; found %X", v)
+	}
+}
+
+func TestLookupUnsafe(t *testing.T) {
+	for i, tt := range testRunes {
+		b, _ := mkUTF8(tt)
+		v := testdata.lookupUnsafe(b)
+		if int(v) != i {
+			t.Errorf("lookupUnsafe(%U): found value %#x, expected %#x", i, v, i)
+		}
+	}
+}
+
+func TestLookupString(t *testing.T) {
+	for i, tt := range testRunes {
+		b, szg := mkUTF8(tt)
+		v, szt := testdata.lookupString(string(b))
+		if int(v) != i {
+			t.Errorf("lookup(%U): found value %#x, expected %#x", i, v, i)
+		}
+		if szt != szg {
+			t.Errorf("lookup(%U): found size %d, expected %d", i, szt, szg)
+		}
+	}
+	for i, tt := range tests {
+		v, sz := testdata.lookupString(string(tt.bytes))
+		if int(v) != 0 {
+			t.Errorf("lookup of illegal rune, case %d: found value %#x, expected 0", i, v)
+		}
+		if sz != tt.size {
+			t.Errorf("lookup of illegal rune, case %d: found size %d, expected %d", i, sz, tt.size)
+		}
+	}
+}
+
+func TestLookupStringUnsafe(t *testing.T) {
+	for i, tt := range testRunes {
+		b, _ := mkUTF8(tt)
+		v := testdata.lookupStringUnsafe(string(b))
+		if int(v) != i {
+			t.Errorf("lookupUnsafe(%U): found value %#x, expected %#x", i, v, i)
+		}
+	}
+}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/triedata_test.go

@@ -0,0 +1,85 @@
+// Generated by running
+//	maketesttables
+// DO NOT EDIT
+
+package norm
+
+var testRunes = []int32{1, 12, 127, 128, 256, 2047, 2048, 2457, 65535, 65536, 65793, 1114111, 512, 513, 514, 528, 533}
+
+// testdataValues: 192 entries, 384 bytes
+// Block 2 is the null block.
+var testdataValues = [192]uint16{
+	// Block 0x0, offset 0x0
+	0x000c: 0x0001,
+	// Block 0x1, offset 0x40
+	0x007f: 0x0002,
+	// Block 0x2, offset 0x80
+}
+
+// testdataSparseOffset: 10 entries, 20 bytes
+var testdataSparseOffset = []uint16{0x0, 0x2, 0x4, 0x8, 0xa, 0xc, 0xe, 0x10, 0x12, 0x14}
+
+// testdataSparseValues: 22 entries, 88 bytes
+var testdataSparseValues = [22]valueRange{
+	// Block 0x0, offset 0x1
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0003, lo: 0x80, hi: 0x80},
+	// Block 0x1, offset 0x2
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0004, lo: 0x80, hi: 0x80},
+	// Block 0x2, offset 0x3
+	{value: 0x0001, lo: 0x03},
+	{value: 0x000c, lo: 0x80, hi: 0x82},
+	{value: 0x000f, lo: 0x90, hi: 0x90},
+	{value: 0x0010, lo: 0x95, hi: 0x95},
+	// Block 0x3, offset 0x4
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0005, lo: 0xbf, hi: 0xbf},
+	// Block 0x4, offset 0x5
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0006, lo: 0x80, hi: 0x80},
+	// Block 0x5, offset 0x6
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0007, lo: 0x99, hi: 0x99},
+	// Block 0x6, offset 0x7
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0008, lo: 0xbf, hi: 0xbf},
+	// Block 0x7, offset 0x8
+	{value: 0x0000, lo: 0x01},
+	{value: 0x0009, lo: 0x80, hi: 0x80},
+	// Block 0x8, offset 0x9
+	{value: 0x0000, lo: 0x01},
+	{value: 0x000a, lo: 0x81, hi: 0x81},
+	// Block 0x9, offset 0xa
+	{value: 0x0000, lo: 0x01},
+	{value: 0x000b, lo: 0xbf, hi: 0xbf},
+}
+
+// testdataLookup: 640 bytes
+// Block 0 is the null block.
+var testdataLookup = [640]uint8{
+	// Block 0x0, offset 0x0
+	// Block 0x1, offset 0x40
+	// Block 0x2, offset 0x80
+	// Block 0x3, offset 0xc0
+	0x0c2: 0x01, 0x0c4: 0x02,
+	0x0c8: 0x03,
+	0x0df: 0x04,
+	0x0e0: 0x02,
+	0x0ef: 0x03,
+	0x0f0: 0x05, 0x0f4: 0x07,
+	// Block 0x4, offset 0x100
+	0x120: 0x05, 0x126: 0x06,
+	// Block 0x5, offset 0x140
+	0x17f: 0x07,
+	// Block 0x6, offset 0x180
+	0x180: 0x08, 0x184: 0x09,
+	// Block 0x7, offset 0x1c0
+	0x1d0: 0x04,
+	// Block 0x8, offset 0x200
+	0x23f: 0x0a,
+	// Block 0x9, offset 0x240
+	0x24f: 0x06,
+}
+
+var testdataTrie = trie{testdataLookup[:], testdataValues[:], testdataSparseValues[:], testdataSparseOffset[:], 1}

Godeps/_workspace/src/code.google.com/p/go.text/unicode/norm/triegen.go

@@ -0,0 +1,317 @@
+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+
+// Trie table generator.
+// Used by make*tables tools to generate a go file with trie data structures
+// for mapping UTF-8 to a 16-bit value. All but the last byte in a UTF-8 byte
+// sequence are used to lookup offsets in the index table to be used for the
+// next byte. The last byte is used to index into a table with 16-bit values.
+
+package main
+
+import (
+	"fmt"
+	"hash/crc32"
+	"log"
+	"unicode/utf8"
+)
+
+const (
+	blockSize        = 64
+	blockOffset      = 2 // Subtract two blocks to compensate for the 0x80 added to continuation bytes.
+	maxSparseEntries = 16
+)
+
+// Intermediate trie structure
+type trieNode struct {
+	table [256]*trieNode
+	value int
+	b     byte
+	leaf  bool
+}
+
+func newNode() *trieNode {
+	return new(trieNode)
+}
+
+func (n trieNode) String() string {
+	s := fmt.Sprint("trieNode{table: { non-nil at index: ")
+	for i, v := range n.table {
+		if v != nil {
+			s += fmt.Sprintf("%d, ", i)
+		}
+	}
+	s += fmt.Sprintf("}, value:%#x, b:%#x leaf:%v}", n.value, n.b, n.leaf)
+	return s
+}
+
+func (n trieNode) isInternal() bool {
+	internal := true
+	for i := 0; i < 256; i++ {
+		if nn := n.table[i]; nn != nil {
+			if !internal && !nn.leaf {
+				log.Fatalf("triegen: isInternal: node contains both leaf and non-leaf children (%v)", n)
+			}
+			internal = internal && !nn.leaf
+		}
+	}
+	return internal
+}
+
+func (n trieNode) mostFrequentStride() int {
+	counts := make(map[int]int)
+	v := 0
+	for _, t := range n.table[0x80 : 0x80+blockSize] {
+		if t != nil {
+			if stride := t.value - v; v != 0 && stride >= 0 {
+				counts[stride]++
+			}
+			v = t.value
+		} else {
+			v = 0
+		}
+	}
+	var maxs, maxc int
+	for stride, cnt := range counts {
+		if cnt > maxc || (cnt == maxc && stride < maxs) {
+			maxs, maxc = stride, cnt
+		}
+	}
+	return maxs
+}
+
+func (n trieNode) countSparseEntries() int {
+	stride := n.mostFrequentStride()
+	var count, v int
+	for _, t := range n.table[0x80 : 0x80+blockSize] {
+		tv := 0
+		if t != nil {
+			tv = t.value
+		}
+		if tv-v != stride {
+			if tv != 0 {
+				count++
+			}
+		}
+		v = tv
+	}
+	return count
+}
+
+func (n *trieNode) insert(r rune, value uint16) {
+	var p [utf8.UTFMax]byte
+	sz := utf8.EncodeRune(p[:], r)
+
+	for i := 0; i < sz; i++ {
+		if n.leaf {
+			log.Fatalf("triegen: insert: node (%#v) should not be a leaf", n)
+		}
+		nn := n.table[p[i]]
+		if nn == nil {
+			nn = newNode()
+			nn.b = p[i]
+			n.table[p[i]] = nn
+		}
+		n = nn
+	}
+	n.value = int(value)
+	n.leaf = true
+}
+
+type nodeIndex struct {
+	lookupBlocks []*trieNode
+	valueBlocks  []*trieNode
+	sparseBlocks []*trieNode
+	sparseOffset []uint16
+	sparseCount  int
+
+	lookupBlockIdx map[uint32]int
+	valueBlockIdx  map[uint32]int
+}
+
+func newIndex() *nodeIndex {
+	index := &nodeIndex{}
+	index.lookupBlocks = make([]*trieNode, 0)
+	index.valueBlocks = make([]*trieNode, 0)
+	index.sparseBlocks = make([]*trieNode, 0)
+	index.sparseOffset = make([]uint16, 1)
+	index.lookupBlockIdx = make(map[uint32]int)
+	index.valueBlockIdx = make(map[uint32]int)
+	return index
+}
+
+func computeOffsets(index *nodeIndex, n *trieNode) int {
+	if n.leaf {
+		return n.value
+	}
+	hasher := crc32.New(crc32.MakeTable(crc32.IEEE))
+	// We only index continuation bytes.
+	for i := 0; i < blockSize; i++ {
+		v := 0
+		if nn := n.table[0x80+i]; nn != nil {
+			v = computeOffsets(index, nn)
+		}
+		hasher.Write([]byte{uint8(v >> 8), uint8(v)})
+	}
+	h := hasher.Sum32()
+	if n.isInternal() {
+		v, ok := index.lookupBlockIdx[h]
+		if !ok {
+			v = len(index.lookupBlocks) - blockOffset
+			index.lookupBlocks = append(index.lookupBlocks, n)
+			index.lookupBlockIdx[h] = v
+		}
+		n.value = v
+	} else {
+		v, ok := index.valueBlockIdx[h]
+		if !ok {
+			if c := n.countSparseEntries(); c > maxSparseEntries {
+				v = len(index.valueBlocks) - blockOffset
+				index.valueBlocks = append(index.valueBlocks, n)
+				index.valueBlockIdx[h] = v
+			} else {
+				v = -len(index.sparseOffset)
+				index.sparseBlocks = append(index.sparseBlocks, n)
+				index.sparseOffset = append(index.sparseOffset, uint16(index.sparseCount))
+				index.sparseCount += c + 1
+				index.valueBlockIdx[h] = v
+			}
+		}
+		n.value = v
+	}
+	return n.value
+}
+
+func printValueBlock(nr int, n *trieNode, offset int) {
+	boff := nr * blockSize
+	fmt.Printf("\n// Block %#x, offset %#x", nr, boff)
+	var printnewline bool
+	for i := 0; i < blockSize; i++ {
+		if i%6 == 0 {
+			printnewline = true
+		}
+		v := 0
+		if nn := n.table[i+offset]; nn != nil {
+			v = nn.value
+		}
+		if v != 0 {
+			if printnewline {
+				fmt.Printf("\n")
+				printnewline = false
+			}
+			fmt.Printf("%#04x:%#04x, ", boff+i, v)
+		}
+	}
+}
+
+func printSparseBlock(nr int, n *trieNode) {
+	boff := -n.value
+	fmt.Printf("\n// Block %#x, offset %#x", nr, boff)
+	v := 0
+	//stride := f(n)
+	stride := n.mostFrequentStride()
+	c := n.countSparseEntries()
+	fmt.Printf("\n{value:%#04x,lo:%#02x},", stride, uint8(c))
+	for i, nn := range n.table[0x80 : 0x80+blockSize] {
+		nv := 0
+		if nn != nil {
+			nv = nn.value
+		}
+		if nv-v != stride {
+			if v != 0 {
+				fmt.Printf(",hi:%#02x},", 0x80+i-1)
+			}
+			if nv != 0 {
+				fmt.Printf("\n{value:%#04x,lo:%#02x", nv, nn.b)
+			}
+		}
+		v = nv
+	}
+	if v != 0 {
+		fmt.Printf(",hi:%#02x},", 0x80+blockSize-1)
+	}
+}
+
+func printLookupBlock(nr int, n *trieNode, offset, cutoff int) {
+	boff := nr * blockSize
+	fmt.Printf("\n// Block %#x, offset %#x", nr, boff)
+	var printnewline bool
+	for i := 0; i < blockSize; i++ {
+		if i%8 == 0 {
+			printnewline = true
+		}
+		v := 0
+		if nn := n.table[i+offset]; nn != nil {
+			v = nn.value
+		}
+		if v != 0 {
+			if v < 0 {
+				v = -v - 1 + cutoff
+			}
+			if printnewline {
+				fmt.Printf("\n")
+				printnewline = false
+			}
+			fmt.Printf("%#03x:%#02x, ", boff+i, v)
+		}
+	}
+}
+
+// printTables returns the size in bytes of the generated tables.
+func (t *trieNode) printTables(name string) int {
+	index := newIndex()
+	// Values for 7-bit ASCII are stored in first two block, followed by nil block.
+	index.valueBlocks = append(index.valueBlocks, nil, nil, nil)
+	// First byte of multi-byte UTF-8 codepoints are indexed in 4th block.
+	index.lookupBlocks = append(index.lookupBlocks, nil, nil, nil, nil)
+	// Index starter bytes of multi-byte UTF-8.
+	for i := 0xC0; i < 0x100; i++ {
+		if t.table[i] != nil {
+			computeOffsets(index, t.table[i])
+		}
+	}
+
+	nv := len(index.valueBlocks) * blockSize
+	fmt.Printf("// %sValues: %d entries, %d bytes\n", name, nv, nv*2)
+	fmt.Printf("// Block 2 is the null block.\n")
+	fmt.Printf("var %sValues = [%d]uint16 {", name, nv)
+	printValueBlock(0, t, 0)
+	printValueBlock(1, t, 64)
+	printValueBlock(2, newNode(), 0)
+	for i := 3; i < len(index.valueBlocks); i++ {
+		printValueBlock(i, index.valueBlocks[i], 0x80)
+	}
+	fmt.Print("\n}\n\n")
+
+	ls := len(index.sparseBlocks)
+	fmt.Printf("// %sSparseOffset: %d entries, %d bytes\n", name, ls, ls*2)
+	fmt.Printf("var %sSparseOffset = %#v\n\n", name, index.sparseOffset[1:])
+
+	ns := index.sparseCount
+	fmt.Printf("// %sSparseValues: %d entries, %d bytes\n", name, ns, ns*4)
+	fmt.Printf("var %sSparseValues = [%d]valueRange {", name, ns)
+	for i, n := range index.sparseBlocks {
+		printSparseBlock(i, n)
+	}
+	fmt.Print("\n}\n\n")
+
+	cutoff := len(index.valueBlocks) - blockOffset
+	ni := len(index.lookupBlocks) * blockSize
+	fmt.Printf("// %sLookup: %d bytes\n", name, ni)
+	fmt.Printf("// Block 0 is the null block.\n")
+	fmt.Printf("var %sLookup = [%d]uint8 {", name, ni)
+	printLookupBlock(0, newNode(), 0, cutoff)
+	printLookupBlock(1, newNode(), 0, cutoff)
+	printLookupBlock(2, newNode(), 0, cutoff)
+	printLookupBlock(3, t, 0xC0, cutoff)
+	for i := 4; i < len(index.lookupBlocks); i++ {
+		printLookupBlock(i, index.lookupBlocks[i], 0x80, cutoff)
+	}
+	fmt.Print("\n}\n\n")
+	fmt.Printf("var %sTrie = trie{ %sLookup[:], %sValues[:], %sSparseValues[:], %sSparseOffset[:], %d}\n\n",
+		name, name, name, name, name, cutoff)
+	return nv*2 + ns*4 + ni + ls*2
+}

Godeps/_workspace/src/github.com/codegangsta/inject/.gitignore

@@ -0,0 +1,2 @@
+inject
+inject.test

Godeps/_workspace/src/github.com/codegangsta/inject/LICENSE

@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Jeremy Saenz
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Godeps/_workspace/src/github.com/codegangsta/inject/README.md

@@ -0,0 +1,4 @@
+inject
+======
+
+Dependency injection for go

Godeps/_workspace/src/github.com/codegangsta/inject/inject.go

@@ -0,0 +1,168 @@
+// Package inject provides utilities for mapping and injecting dependencies in various ways.
+package inject
+
+import (
+	"fmt"
+	"reflect"
+)
+
+// Injector represents an interface for mapping and injecting dependencies into structs
+// and function arguments.
+type Injector interface {
+	Applicator
+	Invoker
+	TypeMapper
+	// SetParent sets the parent of the injector. If the injector cannot find a
+	// dependency in its Type map it will check its parent before returning an
+	// error.
+	SetParent(Injector)
+}
+
+// Applicator represents an interface for mapping dependencies to a struct.
+type Applicator interface {
+	// Maps dependencies in the Type map to each field in the struct
+	// that is tagged with 'inject'. Returns an error if the injection
+	// fails.
+	Apply(interface{}) error
+}
+
+// Invoker represents an interface for calling functions via reflection.
+type Invoker interface {
+	// Invoke attempts to call the interface{} provided as a function,
+	// providing dependencies for function arguments based on Type. Returns
+	// a slice of reflect.Value representing the returned values of the function.
+	// Returns an error if the injection fails.
+	Invoke(interface{}) ([]reflect.Value, error)
+}
+
+// TypeMapper represents an interface for mapping interface{} values based on type.
+type TypeMapper interface {
+	// Maps the interface{} value based on its immediate type from reflect.TypeOf.
+	Map(interface{}) TypeMapper
+	// Maps the interface{} value based on the pointer of an Interface provided.
+	// This is really only useful for mapping a value as an interface, as interfaces
+	// cannot at this time be referenced directly without a pointer.
+	MapTo(interface{}, interface{}) TypeMapper
+	// Provides a possibility to directly insert a mapping based on type and value.
+	// This makes it possible to directly map type arguments not possible to instantiate
+	// with reflect like unidirectional channels.
+	Set(reflect.Type, reflect.Value) TypeMapper
+	// Returns the Value that is mapped to the current type. Returns a zeroed Value if
+	// the Type has not been mapped.
+	Get(reflect.Type) reflect.Value
+}
+
+type injector struct {
+	values map[reflect.Type]reflect.Value
+	parent Injector
+}
+
+// InterfaceOf dereferences a pointer to an Interface type.
+// It panics if value is not an pointer to an interface.
+func InterfaceOf(value interface{}) reflect.Type {
+	t := reflect.TypeOf(value)
+
+	for t.Kind() == reflect.Ptr {
+		t = t.Elem()
+	}
+
+	if t.Kind() != reflect.Interface {
+		panic("Called inject.InterfaceOf with a value that is not a pointer to an interface. (*MyInterface)(nil)")
+	}
+
+	return t
+}
+
+// New returns a new Injector.
+func New() Injector {
+	return &injector{
+		values: make(map[reflect.Type]reflect.Value),
+	}
+}
+
+// Invoke attempts to call the interface{} provided as a function,
+// providing dependencies for function arguments based on Type.
+// Returns a slice of reflect.Value representing the returned values of the function.
+// Returns an error if the injection fails.
+// It panics if f is not a function
+func (inj *injector) Invoke(f interface{}) ([]reflect.Value, error) {
+	t := reflect.TypeOf(f)
+
+	var in = make([]reflect.Value, t.NumIn()) //Panic if t is not kind of Func
+	for i := 0; i < t.NumIn(); i++ {
+		argType := t.In(i)
+		val := inj.Get(argType)
+		if !val.IsValid() {
+			return nil, fmt.Errorf("Value not found for type %v", argType)
+		}
+
+		in[i] = val
+	}
+
+	return reflect.ValueOf(f).Call(in), nil
+}
+
+// Maps dependencies in the Type map to each field in the struct
+// that is tagged with 'inject'.
+// Returns an error if the injection fails.
+func (inj *injector) Apply(val interface{}) error {
+	v := reflect.ValueOf(val)
+
+	for v.Kind() == reflect.Ptr {
+		v = v.Elem()
+	}
+
+	if v.Kind() != reflect.Struct {
+		return nil // Should not panic here ?
+	}
+
+	t := v.Type()
+
+	for i := 0; i < v.NumField(); i++ {
+		f := v.Field(i)
+		structField := t.Field(i)
+		if f.CanSet() && structField.Tag == "inject" {
+			ft := f.Type()
+			v := inj.Get(ft)
+			if !v.IsValid() {
+				return fmt.Errorf("Value not found for type %v", ft)
+			}
+
+			f.Set(v)
+		}
+
+	}
+
+	return nil
+}
+
+// Maps the concrete value of val to its dynamic type using reflect.TypeOf,
+// It returns the TypeMapper registered in.
+func (i *injector) Map(val interface{}) TypeMapper {
+	i.values[reflect.TypeOf(val)] = reflect.ValueOf(val)
+	return i
+}
+
+func (i *injector) MapTo(val interface{}, ifacePtr interface{}) TypeMapper {
+	i.values[InterfaceOf(ifacePtr)] = reflect.ValueOf(val)
+	return i
+}
+
+// Maps the given reflect.Type to the given reflect.Value and returns
+// the Typemapper the mapping has been registered in.
+func (i *injector) Set(typ reflect.Type, val reflect.Value) TypeMapper {
+	i.values[typ] = val
+	return i
+}
+
+func (i *injector) Get(t reflect.Type) reflect.Value {
+	val := i.values[t]
+	if !val.IsValid() && i.parent != nil {
+		val = i.parent.Get(t)
+	}
+	return val
+}
+
+func (i *injector) SetParent(parent Injector) {
+	i.parent = parent
+}

Godeps/_workspace/src/github.com/codegangsta/inject/inject_test.go

@@ -0,0 +1,142 @@
+package inject_test
+
+import (
+	"github.com/codegangsta/inject"
+	"reflect"
+	"testing"
+)
+
+type SpecialString interface {
+}
+
+type TestStruct struct {
+	Dep1 string        `inject`
+	Dep2 SpecialString `inject`
+	Dep3 string
+}
+
+/* Test Helpers */
+func expect(t *testing.T, a interface{}, b interface{}) {
+	if a != b {
+		t.Errorf("Expected %v (type %v) - Got %v (type %v)", b, reflect.TypeOf(b), a, reflect.TypeOf(a))
+	}
+}
+
+func refute(t *testing.T, a interface{}, b interface{}) {
+	if a == b {
+		t.Errorf("Did not expect %v (type %v) - Got %v (type %v)", b, reflect.TypeOf(b), a, reflect.TypeOf(a))
+	}
+}
+
+func Test_InjectorInvoke(t *testing.T) {
+	injector := inject.New()
+	expect(t, injector == nil, false)
+
+	dep := "some dependency"
+	injector.Map(dep)
+	dep2 := "another dep"
+	injector.MapTo(dep2, (*SpecialString)(nil))
+	dep3 := make(chan *SpecialString)
+	dep4 := make(chan *SpecialString)
+	typRecv := reflect.ChanOf(reflect.RecvDir, reflect.TypeOf(dep3).Elem())
+	typSend := reflect.ChanOf(reflect.SendDir, reflect.TypeOf(dep4).Elem())
+	injector.Set(typRecv, reflect.ValueOf(dep3))
+	injector.Set(typSend, reflect.ValueOf(dep4))
+	
+	_, err := injector.Invoke(func(d1 string, d2 SpecialString, d3 <-chan *SpecialString, d4 chan<- *SpecialString) {
+		expect(t, d1, dep)
+		expect(t, d2, dep2)
+		expect(t, reflect.TypeOf(d3).Elem(), reflect.TypeOf(dep3).Elem())
+		expect(t, reflect.TypeOf(d4).Elem(), reflect.TypeOf(dep4).Elem())
+		expect(t, reflect.TypeOf(d3).ChanDir(), reflect.RecvDir)
+		expect(t, reflect.TypeOf(d4).ChanDir(), reflect.SendDir)
+	})
+
+	expect(t, err, nil)
+}
+
+func Test_InjectorInvokeReturnValues(t *testing.T) {
+	injector := inject.New()
+	expect(t, injector == nil, false)
+
+	dep := "some dependency"
+	injector.Map(dep)
+	dep2 := "another dep"
+	injector.MapTo(dep2, (*SpecialString)(nil))
+
+	result, err := injector.Invoke(func(d1 string, d2 SpecialString) string {
+		expect(t, d1, dep)
+		expect(t, d2, dep2)
+		return "Hello world"
+	})
+
+	expect(t, result[0].String(), "Hello world")
+	expect(t, err, nil)
+}
+
+func Test_InjectorApply(t *testing.T) {
+	injector := inject.New()
+
+	injector.Map("a dep").MapTo("another dep", (*SpecialString)(nil))
+
+	s := TestStruct{}
+	err := injector.Apply(&s)
+	expect(t, err, nil)
+
+	expect(t, s.Dep1, "a dep")
+	expect(t, s.Dep2, "another dep")
+}
+
+func Test_InterfaceOf(t *testing.T) {
+	iType := inject.InterfaceOf((*SpecialString)(nil))
+	expect(t, iType.Kind(), reflect.Interface)
+
+	iType = inject.InterfaceOf((**SpecialString)(nil))
+	expect(t, iType.Kind(), reflect.Interface)
+
+	// Expecting nil
+	defer func() {
+		rec := recover()
+		refute(t, rec, nil)
+	}()
+	iType = inject.InterfaceOf((*testing.T)(nil))
+}
+
+func Test_InjectorSet(t *testing.T) {
+	injector := inject.New()
+	typ      := reflect.TypeOf("string")
+	typSend  := reflect.ChanOf(reflect.SendDir, typ)
+	typRecv  := reflect.ChanOf(reflect.RecvDir, typ)
+	
+	// instantiating unidirectional channels is not possible using reflect
+	// http://golang.org/src/pkg/reflect/value.go?s=60463:60504#L2064
+	chanRecv := reflect.MakeChan(reflect.ChanOf(reflect.BothDir, typ), 0)
+	chanSend := reflect.MakeChan(reflect.ChanOf(reflect.BothDir, typ), 0)
+	
+	injector.Set(typSend, chanSend)
+	injector.Set(typRecv, chanRecv)
+
+	expect(t, injector.Get(typSend).IsValid(), true)
+	expect(t, injector.Get(typRecv).IsValid(), true)
+	expect(t, injector.Get(chanSend.Type()).IsValid(), false)
+}
+
+
+func Test_InjectorGet(t *testing.T) {
+	injector := inject.New()
+
+	injector.Map("some dependency")
+
+	expect(t, injector.Get(reflect.TypeOf("string")).IsValid(), true)
+	expect(t, injector.Get(reflect.TypeOf(11)).IsValid(), false)
+}
+
+func Test_InjectorSetParent(t *testing.T) {
+	injector := inject.New()
+	injector.MapTo("another dep", (*SpecialString)(nil))
+
+	injector2 := inject.New()
+	injector2.SetParent(injector)
+
+	expect(t, injector2.Get(inject.InterfaceOf((*SpecialString)(nil))).IsValid(), true)
+}

Godeps/_workspace/src/github.com/codegangsta/martini/.gitignore

@@ -0,0 +1,23 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test

Godeps/_workspace/src/github.com/codegangsta/martini/LICENSE

@@ -0,0 +1,20 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Jeremy Saenz
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Godeps/_workspace/src/github.com/codegangsta/martini/README.md

@@ -0,0 +1,345 @@
+# Martini  [![wercker status](https://app.wercker.com/status/174bef7e3c999e103cacfe2770102266 "wercker status")](https://app.wercker.com/project/bykey/174bef7e3c999e103cacfe2770102266) [![GoDoc](https://godoc.org/github.com/codegangsta/martini?status.png)](http://godoc.org/github.com/codegangsta/martini)
+
+Martini is a powerful package for quickly writing modular web applications/services in Golang.
+
+Language Translations: [Simplified Chinese (zh_CN)](translations/README_zh_cn.md)
+
+
+## Getting Started
+
+After installing Go and setting up your [GOPATH](http://golang.org/doc/code.html#GOPATH), create your first `.go` file. We'll call it `server.go`.
+
+~~~ go
+package main
+
+import "github.com/codegangsta/martini"
+
+func main() {
+  m := martini.Classic()
+  m.Get("/", func() string {
+    return "Hello world!"
+  })
+  m.Run()
+}
+~~~
+
+Then install the Martini package (**go 1.1** and greater is required):
+~~~
+go get github.com/codegangsta/martini
+~~~
+
+Then run your server:
+~~~
+go run server.go
+~~~
+
+You will now have a Martini webserver running on `localhost:3000`.
+
+## Getting Help
+
+Join the [Mailing list](https://groups.google.com/forum/#!forum/martini-go)
+
+Watch the [Demo Video](http://martini.codegangsta.io/#demo)
+
+## Features
+* Extremely simple to use.
+* Non-intrusive design.
+* Plays nice with other Golang packages.
+* Awesome path matching and routing.
+* Modular design - Easy to add functionality, easy to rip stuff out.
+* Lots of good handlers/middlewares to use.
+* Great 'out of the box' feature set.
+* **Fully compatible with the [http.HandlerFunc](http://godoc.org/net/http#HandlerFunc) interface.**
+
+## More Middleware
+For more middleware and functionality, check out the repositories in the  [martini-contrib](https://github.com/martini-contrib) organization.
+
+## Table of Contents
+* [Classic Martini](#classic-martini)
+  * [Handlers](#handlers)
+  * [Routing](#routing)
+  * [Services](#services)
+  * [Serving Static Files](#serving-static-files)
+* [Middleware Handlers](#middleware-handlers)
+  * [Next()](#next)
+* [Martini Env](#martini-env)
+* [FAQ](#faq)
+
+## Classic Martini
+To get up and running quickly, [martini.Classic()](http://godoc.org/github.com/codegangsta/martini#Classic) provides some reasonable defaults that work well for most web applications:
+~~~ go
+  m := martini.Classic()
+  // ... middleware and routing goes here
+  m.Run()
+~~~
+
+Below is some of the functionality [martini.Classic()](http://godoc.org/github.com/codegangsta/martini#Classic) pulls in automatically:
+  * Request/Response Logging - [martini.Logger](http://godoc.org/github.com/codegangsta/martini#Logger)
+  * Panic Recovery - [martini.Recovery](http://godoc.org/github.com/codegangsta/martini#Recovery)
+  * Static File serving - [martini.Static](http://godoc.org/github.com/codegangsta/martini#Static)
+  * Routing - [martini.Router](http://godoc.org/github.com/codegangsta/martini#Router)
+
+### Handlers
+Handlers are the heart and soul of Martini. A handler is basically any kind of callable function:
+~~~ go
+m.Get("/", func() {
+  println("hello world")
+})
+~~~
+
+#### Return Values
+If a handler returns something, Martini will write the result to the current [http.ResponseWriter](http://godoc.org/net/http#ResponseWriter) as a string:
+~~~ go
+m.Get("/", func() string {
+  return "hello world" // HTTP 200 : "hello world"
+})
+~~~
+
+You can also optionally return a status code:
+~~~ go
+m.Get("/", func() (int, string) {
+  return 418, "i'm a teapot" // HTTP 418 : "i'm a teapot"
+})
+~~~
+
+#### Service Injection
+Handlers are invoked via reflection. Martini makes use of *Dependency Injection* to resolve dependencies in a Handlers argument list. **This makes Martini completely  compatible with golang's `http.HandlerFunc` interface.** 
+
+If you add an argument to your Handler, Martini will search its list of services and attempt to resolve the dependency via type assertion:
+~~~ go
+m.Get("/", func(res http.ResponseWriter, req *http.Request) { // res and req are injected by Martini
+  res.WriteHeader(200) // HTTP 200
+})
+~~~
+
+The following services are included with [martini.Classic()](http://godoc.org/github.com/codegangsta/martini#Classic):
+  * [*log.Logger](http://godoc.org/log#Logger) - Global logger for Martini.
+  * [martini.Context](http://godoc.org/github.com/codegangsta/martini#Context) - http request context.
+  * [martini.Params](http://godoc.org/github.com/codegangsta/martini#Params) - `map[string]string` of named params found by route matching.
+  * [martini.Routes](http://godoc.org/github.com/codegangsta/martini#Routes) - Route helper service.
+  * [http.ResponseWriter](http://godoc.org/net/http/#ResponseWriter) - http Response writer interface.
+  * [*http.Request](http://godoc.org/net/http/#Request) - http Request.
+
+### Routing
+In Martini, a route is an HTTP method paired with a URL-matching pattern.
+Each route can take one or more handler methods:
+~~~ go
+m.Get("/", func() {
+  // show something
+})
+
+m.Patch("/", func() {
+  // update something
+})
+
+m.Post("/", func() {
+  // create something
+})
+
+m.Put("/", func() {
+  // replace something
+})
+
+m.Delete("/", func() {
+  // destroy something
+})
+
+m.Options("/", func() {
+  // http options
+})
+
+m.NotFound(func() {
+  // handle 404
+})
+~~~
+
+Routes are matched in the order they are defined. The first route that
+matches the request is invoked.
+
+Route patterns may include named parameters, accessible via the [martini.Params](http://godoc.org/github.com/codegangsta/martini#Params) service:
+~~~ go
+m.Get("/hello/:name", func(params martini.Params) string {
+  return "Hello " + params["name"]
+})
+~~~
+
+Routes can be matched with regular expressions and globs as well:
+~~~ go
+m.Get("/hello/**", func(params martini.Params) string {
+  return "Hello " + params["_1"]
+})
+~~~
+
+Route handlers can be stacked on top of each other, which is useful for things like authentication and authorization:
+~~~ go
+m.Get("/secret", authorize, func() {
+  // this will execute as long as authorize doesn't write a response
+})
+~~~
+
+Route groups can be added too using the Group method.
+~~~ go
+m.Group("/books", func(r Router) {
+    r.Get("/:id", GetBooks)
+    r.Post("/new", NewBook)
+    r.Put("/update/:id", UpdateBook)
+    r.Delete("/delete/:id", DeleteBook)
+})
+~~~
+
+Just like you can pass middlewares to a handler you can pass middlewares to groups.
+~~~ go
+m.Group("/books", func(r Router) {
+    r.Get("/:id", GetBooks)
+    r.Post("/new", NewBook)
+    r.Put("/update/:id", UpdateBook)
+    r.Delete("/delete/:id", DeleteBook)
+}, MyMiddleware1, MyMiddleware2)
+~~~
+
+### Services
+Services are objects that are available to be injected into a Handler's argument list. You can map a service on a *Global* or *Request* level.
+
+#### Global Mapping
+A Martini instance implements the inject.Injector interface, so mapping a service is easy:
+~~~ go
+db := &MyDatabase{}
+m := martini.Classic()
+m.Map(db) // the service will be available to all handlers as *MyDatabase
+// ...
+m.Run()
+~~~
+
+#### Request-Level Mapping
+Mapping on the request level can be done in a handler via [martini.Context](http://godoc.org/github.com/codegangsta/martini#Context):
+~~~ go
+func MyCustomLoggerHandler(c martini.Context, req *http.Request) {
+  logger := &MyCustomLogger{req}
+  c.Map(logger) // mapped as *MyCustomLogger
+}
+~~~
+
+#### Mapping values to Interfaces
+One of the most powerful parts about services is the ability to map a service to an interface. For instance, if you wanted to override the [http.ResponseWriter](http://godoc.org/net/http#ResponseWriter) with an object that wrapped it and performed extra operations, you can write the following handler:
+~~~ go
+func WrapResponseWriter(res http.ResponseWriter, c martini.Context) {
+  rw := NewSpecialResponseWriter(res)
+  c.MapTo(rw, (*http.ResponseWriter)(nil)) // override ResponseWriter with our wrapper ResponseWriter
+}
+~~~
+
+### Serving Static Files
+A [martini.Classic()](http://godoc.org/github.com/codegangsta/martini#Classic) instance automatically serves static files from the "public" directory in the root of your server.
+You can serve from more directories by adding more [martini.Static](http://godoc.org/github.com/codegangsta/martini#Static) handlers.
+~~~ go
+m.Use(martini.Static("assets")) // serve from the "assets" directory as well
+~~~
+
+## Middleware Handlers
+Middleware Handlers sit between the incoming http request and the router. In essence they are no different than any other Handler in Martini. You can add a middleware handler to the stack like so:
+~~~ go
+m.Use(func() {
+  // do some middleware stuff
+})
+~~~
+
+You can have full control over the middleware stack with the `Handlers` function. This will replace any handlers that have been previously set:
+~~~ go
+m.Handlers(
+  Middleware1,
+  Middleware2,
+  Middleware3,
+)
+~~~
+
+Middleware Handlers work really well for things like logging, authorization, authentication, sessions, gzipping, error pages and any other operations that must happen before or after an http request:
+~~~ go
+// validate an api key
+m.Use(func(res http.ResponseWriter, req *http.Request) {
+  if req.Header.Get("X-API-KEY") != "secret123" {
+    res.WriteHeader(http.StatusUnauthorized)
+  }
+})
+~~~
+
+### Next()
+[Context.Next()](http://godoc.org/github.com/codegangsta/martini#Context) is an optional function that Middleware Handlers can call to yield the until after the other Handlers have been executed. This works really well for any operations that must happen after an http request:
+~~~ go
+// log before and after a request
+m.Use(func(c martini.Context, log *log.Logger){
+  log.Println("before a request")
+
+  c.Next()
+  
+  log.Println("after a request")
+})
+~~~
+
+## Martini Env
+
+Some Martini handlers make use of the `martini.Env` global variable to provide special functionality for development environments vs production environments. It is reccomended that the `MARTINI_ENV=production` environment variable to be set when deploying a Martini server into a production environment.
+
+## FAQ
+
+### Where do I find middleware X?
+
+Start by looking in the [martini-contrib](https://github.com/martini-contrib) projects. If it is not there feel free to contact a martini-contrib team member about adding a new repo to the organization.
+
+* [auth](https://github.com/martini-contrib/auth) - Handlers for authentication.
+* [binding](https://github.com/martini-contrib/binding) - Handler for mapping/validating a raw request into a structure.
+* [gzip](https://github.com/martini-contrib/gzip) - Handler for adding gzip compress to requests
+* [render](https://github.com/martini-contrib/render) - Handler that provides a service for easily rendering JSON and HTML templates.
+* [acceptlang](https://github.com/martini-contrib/acceptlang) - Handler for parsing the `Accept-Language` HTTP header.
+* [sessions](https://github.com/martini-contrib/sessions) - Handler that provides a Session service.
+* [strip](https://github.com/martini-contrib/strip) - URL Prefix stripping.
+* [method](https://github.com/martini-contrib/method) - HTTP method overriding via Header or form fields.
+* [secure](https://github.com/martini-contrib/secure) - Implements a few quick security wins.
+* [encoder](https://github.com/martini-contrib/encoder) - Encoder service for rendering data in several formats and content negotiation.
+* [cors](https://github.com/martini-contrib/cors) - Handler that enables CORS support.
+* [oauth2](https://github.com/martini-contrib/oauth2) - Handler that provides OAuth 2.0 login for Martini apps. Google Sign-in, Facebook Connect and Github login is supported.
+
+### How do I integrate with existing servers?
+
+A Martini instance implements `http.Handler`, so it can easily be used to serve subtrees 
+on existing Go servers. For example this is a working Martini app for Google App Engine:
+
+~~~ go
+package hello
+
+import (
+  "net/http"
+  "github.com/codegangsta/martini"
+)
+
+func init() {
+  m := martini.Classic()
+  m.Get("/", func() string {
+    return "Hello world!"
+  })
+  http.Handle("/", m)
+}
+~~~
+
+### How do I change the port/host?
+
+Martini's `Run` function looks for the PORT and HOST environment variables and uses those. Otherwise Martini will default to localhost:3000.
+To have more flexibility over port and host, use the `http.ListenAndServe` function instead.
+
+~~~ go
+  m := martini.Classic()
+  // ...
+  log.Fatal(http.ListenAndServe(":8080", m))
+~~~
+
+### Live code reload?
+
+[gin](https://github.com/codegangsta/gin) and [fresh](https://github.com/pilu/fresh) both live reload martini apps.
+
+## Contributing
+Martini is meant to be kept tiny and clean. Most contributions should end up in a repository in the [martini-contrib](https://github.com/martini-contrib) organization. If you do have a contribution for the core of Martini feel free to put up a Pull Request.
+
+## About
+
+Inspired by [express](https://github.com/visionmedia/express) and [sinatra](https://github.com/sinatra/sinatra)
+
+Martini is obsessively designed by none other than the [Code Gangsta](http://codegangsta.io/)

Godeps/_workspace/src/github.com/codegangsta/martini/env.go

@@ -0,0 +1,25 @@
+package martini
+
+import (
+	"os"
+)
+
+// Envs
+const (
+	Dev  string = "development"
+	Prod string = "production"
+	Test string = "test"
+)
+
+// Env is the environment that Martini is executing in. The MARTINI_ENV is read on initialization to set this variable.
+var Env = Dev
+
+func setENV(e string) {
+	if len(e) > 0 {
+		Env = e
+	}
+}
+
+func init() {
+	setENV(os.Getenv("MARTINI_ENV"))
+}

Godeps/_workspace/src/github.com/codegangsta/martini/env_test.go

@@ -0,0 +1,22 @@
+package martini
+
+import (
+	"testing"
+)
+
+func Test_SetENV(t *testing.T) {
+	tests := []struct {
+		in  string
+		out string
+	}{
+		{"", "development"},
+		{"not_development", "not_development"},
+	}
+
+	for _, test := range tests {
+		setENV(test.in)
+		if Env != test.out {
+			expect(t, Env, test.out)
+		}
+	}
+}

Godeps/_workspace/src/github.com/codegangsta/martini/go_version.go

@@ -0,0 +1,7 @@
+// +build !go1.1
+
+package martini
+
+func MartiniDoesNotSupportGo1Point0() {
+	"Martini requires Go 1.1 or greater."
+}

Godeps/_workspace/src/github.com/codegangsta/martini/logger.go

@@ -0,0 +1,20 @@
+package martini
+
+import (
+	"log"
+	"net/http"
+	"time"
+)
+
+// Logger returns a middleware handler that logs the request as it goes in and the response as it goes out.
+func Logger() Handler {
+	return func(res http.ResponseWriter, req *http.Request, c Context, log *log.Logger) {
+		start := time.Now()
+		log.Printf("Started %s %s", req.Method, req.URL.Path)
+
+		rw := res.(ResponseWriter)
+		c.Next()
+
+		log.Printf("Completed %v %s in %v\n", rw.Status(), http.StatusText(rw.Status()), time.Since(start))
+	}
+}

Godeps/_workspace/src/github.com/codegangsta/martini/logger_test.go

@@ -0,0 +1,31 @@
+package martini
+
+import (
+	"bytes"
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func Test_Logger(t *testing.T) {
+	buff := bytes.NewBufferString("")
+	recorder := httptest.NewRecorder()
+
+	m := New()
+	// replace log for testing
+	m.Map(log.New(buff, "[martini] ", 0))
+	m.Use(Logger())
+	m.Use(func(res http.ResponseWriter) {
+		res.WriteHeader(http.StatusNotFound)
+	})
+
+	req, err := http.NewRequest("GET", "http://localhost:3000/foobar", nil)
+	if err != nil {
+		t.Error(err)
+	}
+
+	m.ServeHTTP(recorder, req)
+	expect(t, recorder.Code, http.StatusNotFound)
+	refute(t, len(buff.String()), 0)
+}

Godeps/_workspace/src/github.com/codegangsta/martini/martini.go

@@ -0,0 +1,173 @@
+// Package martini is a powerful package for quickly writing modular web applications/services in Golang.
+//
+// For a full guide visit http://github.com/codegangsta/martini
+//
+//  package main
+//
+//  import "github.com/codegangsta/martini"
+//
+//  func main() {
+//    m := martini.Classic()
+//
+//    m.Get("/", func() string {
+//      return "Hello world!"
+//    })
+//
+//    m.Run()
+//  }
+package martini
+
+import (
+	"log"
+	"net/http"
+	"os"
+	"reflect"
+
+	"github.com/codegangsta/inject"
+)
+
+// Martini represents the top level web application. inject.Injector methods can be invoked to map services on a global level.
+type Martini struct {
+	inject.Injector
+	handlers []Handler
+	action   Handler
+	logger   *log.Logger
+}
+
+// New creates a bare bones Martini instance. Use this method if you want to have full control over the middleware that is used.
+func New() *Martini {
+	m := &Martini{Injector: inject.New(), action: func() {}, logger: log.New(os.Stdout, "[martini] ", 0)}
+	m.Map(m.logger)
+	m.Map(defaultReturnHandler())
+	return m
+}
+
+// Handlers sets the entire middleware stack with the given Handlers. This will clear any current middleware handlers.
+// Will panic if any of the handlers is not a callable function
+func (m *Martini) Handlers(handlers ...Handler) {
+	m.handlers = make([]Handler, 0)
+	for _, handler := range handlers {
+		m.Use(handler)
+	}
+}
+
+// Action sets the handler that will be called after all the middleware has been invoked. This is set to martini.Router in a martini.Classic().
+func (m *Martini) Action(handler Handler) {
+	validateHandler(handler)
+	m.action = handler
+}
+
+// Use adds a middleware Handler to the stack. Will panic if the handler is not a callable func. Middleware Handlers are invoked in the order that they are added.
+func (m *Martini) Use(handler Handler) {
+	validateHandler(handler)
+
+	m.handlers = append(m.handlers, handler)
+}
+
+// ServeHTTP is the HTTP Entry point for a Martini instance. Useful if you want to control your own HTTP server.
+func (m *Martini) ServeHTTP(res http.ResponseWriter, req *http.Request) {
+	m.createContext(res, req).run()
+}
+
+// Run the http server. Listening on os.GetEnv("PORT") or 3000 by default.
+func (m *Martini) Run() {
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "3000"
+	}
+
+	host := os.Getenv("HOST")
+
+	m.logger.Println("listening on " + host + ":" + port)
+	m.logger.Fatalln(http.ListenAndServe(host+":"+port, m))
+}
+
+func (m *Martini) createContext(res http.ResponseWriter, req *http.Request) *context {
+	c := &context{inject.New(), m.handlers, m.action, NewResponseWriter(res), 0}
+	c.SetParent(m)
+	c.MapTo(c, (*Context)(nil))
+	c.MapTo(c.rw, (*http.ResponseWriter)(nil))
+	c.Map(req)
+	return c
+}
+
+// ClassicMartini represents a Martini with some reasonable defaults. Embeds the router functions for convenience.
+type ClassicMartini struct {
+	*Martini
+	Router
+}
+
+// Classic creates a classic Martini with some basic default middleware - martini.Logger, martini.Recovery and martini.Static.
+// Classic also maps martini.Routes as a service.
+func Classic() *ClassicMartini {
+	r := NewRouter()
+	m := New()
+	m.Use(Logger())
+	m.Use(Recovery())
+	m.Use(Static("public"))
+	m.MapTo(r, (*Routes)(nil))
+	m.Action(r.Handle)
+	return &ClassicMartini{m, r}
+}
+
+// Handler can be any callable function. Martini attempts to inject services into the handler's argument list.
+// Martini will panic if an argument could not be fullfilled via dependency injection.
+type Handler interface{}
+
+func validateHandler(handler Handler) {
+	if reflect.TypeOf(handler).Kind() != reflect.Func {
+		panic("martini handler must be a callable func")
+	}
+}
+
+// Context represents a request context. Services can be mapped on the request level from this interface.
+type Context interface {
+	inject.Injector
+	// Next is an optional function that Middleware Handlers can call to yield the until after
+	// the other Handlers have been executed. This works really well for any operations that must
+	// happen after an http request
+	Next()
+	// Written returns whether or not the response for this context has been written.
+	Written() bool
+}
+
+type context struct {
+	inject.Injector
+	handlers []Handler
+	action   Handler
+	rw       ResponseWriter
+	index    int
+}
+
+func (c *context) handler() Handler {
+	if c.index < len(c.handlers) {
+		return c.handlers[c.index]
+	}
+	if c.index == len(c.handlers) {
+		return c.action
+	}
+	panic("invalid index for context handler")
+}
+
+func (c *context) Next() {
+	c.index += 1
+	c.run()
+}
+
+func (c *context) Written() bool {
+	return c.rw.Written()
+}
+
+func (c *context) run() {
+	for c.index <= len(c.handlers) {
+		_, err := c.Invoke(c.handler())
+		if err != nil {
+			panic(err)
+		}
+		c.index += 1
+
+		if c.Written() {
+			return
+		}
+	}
+}

Godeps/_workspace/src/github.com/codegangsta/martini/martini_test.go

@@ -0,0 +1,141 @@
+package martini
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"reflect"
+	"testing"
+)
+
+/* Test Helpers */
+func expect(t *testing.T, a interface{}, b interface{}) {
+	if a != b {
+		t.Errorf("Expected %v (type %v) - Got %v (type %v)", b, reflect.TypeOf(b), a, reflect.TypeOf(a))
+	}
+}
+
+func refute(t *testing.T, a interface{}, b interface{}) {
+	if a == b {
+		t.Errorf("Did not expect %v (type %v) - Got %v (type %v)", b, reflect.TypeOf(b), a, reflect.TypeOf(a))
+	}
+}
+
+func Test_New(t *testing.T) {
+	m := New()
+	if m == nil {
+		t.Error("martini.New() cannot return nil")
+	}
+}
+
+func Test_Martini_Run(t *testing.T) {
+	// just test that Run doesn't bomb
+	go New().Run()
+}
+
+func Test_Martini_ServeHTTP(t *testing.T) {
+	result := ""
+	response := httptest.NewRecorder()
+
+	m := New()
+	m.Use(func(c Context) {
+		result += "foo"
+		c.Next()
+		result += "ban"
+	})
+	m.Use(func(c Context) {
+		result += "bar"
+		c.Next()
+		result += "baz"
+	})
+	m.Action(func(res http.ResponseWriter, req *http.Request) {
+		result += "bat"
+		res.WriteHeader(http.StatusBadRequest)
+	})
+
+	m.ServeHTTP(response, (*http.Request)(nil))
+
+	expect(t, result, "foobarbatbazban")
+	expect(t, response.Code, http.StatusBadRequest)
+}
+
+func Test_Martini_Handlers(t *testing.T) {
+	result := ""
+	response := httptest.NewRecorder()
+
+	batman := func(c Context) {
+		result += "batman!"
+	}
+
+	m := New()
+	m.Use(func(c Context) {
+		result += "foo"
+		c.Next()
+		result += "ban"
+	})
+	m.Handlers(
+		batman,
+		batman,
+		batman,
+	)
+	m.Action(func(res http.ResponseWriter, req *http.Request) {
+		result += "bat"
+		res.WriteHeader(http.StatusBadRequest)
+	})
+
+	m.ServeHTTP(response, (*http.Request)(nil))
+
+	expect(t, result, "batman!batman!batman!bat")
+	expect(t, response.Code, http.StatusBadRequest)
+}
+
+func Test_Martini_EarlyWrite(t *testing.T) {
+	result := ""
+	response := httptest.NewRecorder()
+
+	m := New()
+	m.Use(func(res http.ResponseWriter) {
+		result += "foobar"
+		res.Write([]byte("Hello world"))
+	})
+	m.Use(func() {
+		result += "bat"
+	})
+	m.Action(func(res http.ResponseWriter) {
+		result += "baz"
+		res.WriteHeader(http.StatusBadRequest)
+	})
+
+	m.ServeHTTP(response, (*http.Request)(nil))
+
+	expect(t, result, "foobar")
+	expect(t, response.Code, http.StatusOK)
+}
+
+func Test_Martini_Written(t *testing.T) {
+	response := httptest.NewRecorder()
+
+	m := New()
+	m.Handlers(func(res http.ResponseWriter) {
+		res.WriteHeader(http.StatusOK)
+	})
+
+	ctx := m.createContext(response, (*http.Request)(nil))
+	expect(t, ctx.Written(), false)
+
+	ctx.run()
+	expect(t, ctx.Written(), true)
+}
+
+func Test_Martini_Basic_NoRace(t *testing.T) {
+	m := New()
+	handlers := []Handler{func() {}, func() {}}
+	// Ensure append will not realloc to trigger the race condition
+	m.handlers = handlers[:1]
+	req, _ := http.NewRequest("GET", "/", nil)
+	for i := 0; i < 2; i++ {
+		go func() {
+			response := httptest.NewRecorder()
+			m.ServeHTTP(response, req)
+		}()
+	}
+}

Godeps/_workspace/src/github.com/codegangsta/martini/recovery.go

@@ -0,0 +1,142 @@
+package martini
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"runtime"
+
+	"github.com/codegangsta/inject"
+)
+
+const (
+	panicHtml = `<html>
+<head><title>PANIC: %s</title>
+<style type="text/css">
+html, body {
+	font-family: "Roboto", sans-serif;
+	color: #333333;
+	background-color: #ea5343;
+	margin: 0px;
+}
+h1 {
+	color: #d04526;
+	background-color: #ffffff;
+	padding: 20px;
+	border-bottom: 1px dashed #2b3848;
+}
+pre {
+	margin: 20px;
+	padding: 20px;
+	border: 2px solid #2b3848;
+	background-color: #ffffff;
+}
+</style>
+</head><body>
+<h1>PANIC</h1>
+<pre style="font-weight: bold;">%s</pre>
+<pre>%s</pre>
+</body>
+</html>`
+)
+
+var (
+	dunno     = []byte("???")
+	centerDot = []byte("·")
+	dot       = []byte(".")
+	slash     = []byte("/")
+)
+
+// stack returns a nicely formated stack frame, skipping skip frames
+func stack(skip int) []byte {
+	buf := new(bytes.Buffer) // the returned data
+	// As we loop, we open files and read them. These variables record the currently
+	// loaded file.
+	var lines [][]byte
+	var lastFile string
+	for i := skip; ; i++ { // Skip the expected number of frames
+		pc, file, line, ok := runtime.Caller(i)
+		if !ok {
+			break
+		}
+		// Print this much at least.  If we can't find the source, it won't show.
+		fmt.Fprintf(buf, "%s:%d (0x%x)\n", file, line, pc)
+		if file != lastFile {
+			data, err := ioutil.ReadFile(file)
+			if err != nil {
+				continue
+			}
+			lines = bytes.Split(data, []byte{'\n'})
+			lastFile = file
+		}
+		fmt.Fprintf(buf, "\t%s: %s\n", function(pc), source(lines, line))
+	}
+	return buf.Bytes()
+}
+
+// source returns a space-trimmed slice of the n'th line.
+func source(lines [][]byte, n int) []byte {
+	n-- // in stack trace, lines are 1-indexed but our array is 0-indexed
+	if n < 0 || n >= len(lines) {
+		return dunno
+	}
+	return bytes.TrimSpace(lines[n])
+}
+
+// function returns, if possible, the name of the function containing the PC.
+func function(pc uintptr) []byte {
+	fn := runtime.FuncForPC(pc)
+	if fn == nil {
+		return dunno
+	}
+	name := []byte(fn.Name())
+	// The name includes the path name to the package, which is unnecessary
+	// since the file name is already included.  Plus, it has center dots.
+	// That is, we see
+	//	runtime/debug.*T·ptrmethod
+	// and want
+	//	*T.ptrmethod
+	// Also the package path might contains dot (e.g. code.google.com/...),
+	// so first eliminate the path prefix
+	if lastslash := bytes.LastIndex(name, slash); lastslash >= 0 {
+		name = name[lastslash+1:]
+	}
+	if period := bytes.Index(name, dot); period >= 0 {
+		name = name[period+1:]
+	}
+	name = bytes.Replace(name, centerDot, dot, -1)
+	return name
+}
+
+// Recovery returns a middleware that recovers from any panics and writes a 500 if there was one.
+// While Martini is in development mode, Recovery will also output the panic as HTML.
+func Recovery() Handler {
+	return func(c Context, log *log.Logger) {
+		defer func() {
+			if err := recover(); err != nil {
+				stack := stack(3)
+				log.Printf("PANIC: %s\n%s", err, stack)
+
+				// Lookup the current responsewriter
+				val := c.Get(inject.InterfaceOf((*http.ResponseWriter)(nil)))
+				res := val.Interface().(http.ResponseWriter)
+
+				// respond with panic message while in development mode
+				var body []byte
+				if Env == Dev {
+					res.Header().Set("Content-Type", "text/html")
+					body = []byte(fmt.Sprintf(panicHtml, err, err, stack))
+				}
+
+				res.WriteHeader(http.StatusInternalServerError)
+				if nil != body {
+					res.Write(body)
+				}
+			}
+		}()
+
+		c.Next()
+	}
+}

Godeps/_workspace/src/github.com/codegangsta/martini/recovery_test.go

@@ -0,0 +1,49 @@
+package martini
+
+import (
+	"bytes"
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func Test_Recovery(t *testing.T) {
+	buff := bytes.NewBufferString("")
+	recorder := httptest.NewRecorder()
+
+	setENV(Dev)
+	m := New()
+	// replace log for testing
+	m.Map(log.New(buff, "[martini] ", 0))
+	m.Use(func(res http.ResponseWriter, req *http.Request) {
+		res.Header().Set("Content-Type", "unpredictable")
+	})
+	m.Use(Recovery())
+	m.Use(func(res http.ResponseWriter, req *http.Request) {
+		panic("here is a panic!")
+	})
+	m.ServeHTTP(recorder, (*http.Request)(nil))
+	expect(t, recorder.Code, http.StatusInternalServerError)
+	expect(t, recorder.HeaderMap.Get("Content-Type"), "text/html")
+	refute(t, recorder.Body.Len(), 0)
+	refute(t, len(buff.String()), 0)
+}
+
+func Test_Recovery_ResponseWriter(t *testing.T) {
+	recorder := httptest.NewRecorder()
+	recorder2 := httptest.NewRecorder()
+
+	setENV(Dev)
+	m := New()
+	m.Use(Recovery())
+	m.Use(func(c Context) {
+		c.MapTo(recorder2, (*http.ResponseWriter)(nil))
+		panic("here is a panic!")
+	})
+	m.ServeHTTP(recorder, (*http.Request)(nil))
+
+	expect(t, recorder2.Code, http.StatusInternalServerError)
+	expect(t, recorder2.HeaderMap.Get("Content-Type"), "text/html")
+	refute(t, recorder2.Body.Len(), 0)
+}

Godeps/_workspace/src/github.com/codegangsta/martini/response_writer.go

@@ -0,0 +1,97 @@
+package martini
+
+import (
+	"bufio"
+	"fmt"
+	"net"
+	"net/http"
+)
+
+// ResponseWriter is a wrapper around http.ResponseWriter that provides extra information about
+// the response. It is recommended that middleware handlers use this construct to wrap a responsewriter
+// if the functionality calls for it.
+type ResponseWriter interface {
+	http.ResponseWriter
+	http.Flusher
+	// Status returns the status code of the response or 0 if the response has not been written.
+	Status() int
+	// Written returns whether or not the ResponseWriter has been written.
+	Written() bool
+	// Size returns the size of the response body.
+	Size() int
+	// Before allows for a function to be called before the ResponseWriter has been written to. This is
+	// useful for setting headers or any other operations that must happen before a response has been written.
+	Before(BeforeFunc)
+}
+
+// BeforeFunc is a function that is called before the ResponseWriter has been written to.
+type BeforeFunc func(ResponseWriter)
+
+// NewResponseWriter creates a ResponseWriter that wraps an http.ResponseWriter
+func NewResponseWriter(rw http.ResponseWriter) ResponseWriter {
+	return &responseWriter{rw, 0, 0, nil}
+}
+
+type responseWriter struct {
+	http.ResponseWriter
+	status      int
+	size        int
+	beforeFuncs []BeforeFunc
+}
+
+func (rw *responseWriter) WriteHeader(s int) {
+	rw.callBefore()
+	rw.ResponseWriter.WriteHeader(s)
+	rw.status = s
+}
+
+func (rw *responseWriter) Write(b []byte) (int, error) {
+	if !rw.Written() {
+		// The status will be StatusOK if WriteHeader has not been called yet
+		rw.WriteHeader(http.StatusOK)
+	}
+	size, err := rw.ResponseWriter.Write(b)
+	rw.size += size
+	return size, err
+}
+
+func (rw *responseWriter) Status() int {
+	return rw.status
+}
+
+func (rw *responseWriter) Size() int {
+	return rw.size
+}
+
+func (rw *responseWriter) Written() bool {
+	return rw.status != 0
+}
+
+func (rw *responseWriter) Before(before BeforeFunc) {
+	rw.beforeFuncs = append(rw.beforeFuncs, before)
+}
+
+func (rw *responseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	hijacker, ok := rw.ResponseWriter.(http.Hijacker)
+	if !ok {
+		return nil, nil, fmt.Errorf("the ResponseWriter doesn't support the Hijacker interface")
+	}
+	return hijacker.Hijack()
+}
+
+func (rw *responseWriter) CloseNotify() <-chan bool {
+	return rw.ResponseWriter.(http.CloseNotifier).CloseNotify()
+}
+
+func (rw *responseWriter) callBefore() {
+	for i := len(rw.beforeFuncs) - 1; i >= 0; i-- {
+		rw.beforeFuncs[i](rw)
+	}
+}
+
+func (rw *responseWriter) Flush() {
+	flusher, ok := rw.ResponseWriter.(http.Flusher)
+	if ok {
+		flusher.Flush()
+	}
+}

Godeps/_workspace/src/github.com/codegangsta/martini/response_writer_test.go

@@ -0,0 +1,188 @@
+package martini
+
+import (
+	"bufio"
+	"io"
+	"net"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+)
+
+type closeNotifyingRecorder struct {
+	*httptest.ResponseRecorder
+	closed chan bool
+}
+
+func newCloseNotifyingRecorder() *closeNotifyingRecorder {
+	return &closeNotifyingRecorder{
+		httptest.NewRecorder(),
+		make(chan bool, 1),
+	}
+}
+
+func (c *closeNotifyingRecorder) close() {
+	c.closed <- true
+}
+
+func (c *closeNotifyingRecorder) CloseNotify() <-chan bool {
+	return c.closed
+}
+
+type hijackableResponse struct {
+	Hijacked bool
+}
+
+func newHijackableResponse() *hijackableResponse {
+	return &hijackableResponse{}
+}
+
+func (h *hijackableResponse) Header() http.Header           { return nil }
+func (h *hijackableResponse) Write(buf []byte) (int, error) { return 0, nil }
+func (h *hijackableResponse) WriteHeader(code int)          {}
+func (h *hijackableResponse) Flush()                        {}
+func (h *hijackableResponse) Hijack() (net.Conn, *bufio.ReadWriter, error) {
+	h.Hijacked = true
+	return nil, nil, nil
+}
+
+func Test_ResponseWriter_WritingString(t *testing.T) {
+	rec := httptest.NewRecorder()
+	rw := NewResponseWriter(rec)
+
+	rw.Write([]byte("Hello world"))
+
+	expect(t, rec.Code, rw.Status())
+	expect(t, rec.Body.String(), "Hello world")
+	expect(t, rw.Status(), http.StatusOK)
+	expect(t, rw.Size(), 11)
+	expect(t, rw.Written(), true)
+}
+
+func Test_ResponseWriter_WritingStrings(t *testing.T) {
+	rec := httptest.NewRecorder()
+	rw := NewResponseWriter(rec)
+
+	rw.Write([]byte("Hello world"))
+	rw.Write([]byte("foo bar bat baz"))
+
+	expect(t, rec.Code, rw.Status())
+	expect(t, rec.Body.String(), "Hello worldfoo bar bat baz")
+	expect(t, rw.Status(), http.StatusOK)
+	expect(t, rw.Size(), 26)
+}
+
+func Test_ResponseWriter_WritingHeader(t *testing.T) {
+	rec := httptest.NewRecorder()
+	rw := NewResponseWriter(rec)
+
+	rw.WriteHeader(http.StatusNotFound)
+
+	expect(t, rec.Code, rw.Status())
+	expect(t, rec.Body.String(), "")
+	expect(t, rw.Status(), http.StatusNotFound)
+	expect(t, rw.Size(), 0)
+}
+
+func Test_ResponseWriter_Before(t *testing.T) {
+	rec := httptest.NewRecorder()
+	rw := NewResponseWriter(rec)
+	result := ""
+
+	rw.Before(func(ResponseWriter) {
+		result += "foo"
+	})
+	rw.Before(func(ResponseWriter) {
+		result += "bar"
+	})
+
+	rw.WriteHeader(http.StatusNotFound)
+
+	expect(t, rec.Code, rw.Status())
+	expect(t, rec.Body.String(), "")
+	expect(t, rw.Status(), http.StatusNotFound)
+	expect(t, rw.Size(), 0)
+	expect(t, result, "barfoo")
+}
+
+func Test_ResponseWriter_Hijack(t *testing.T) {
+	hijackable := newHijackableResponse()
+	rw := NewResponseWriter(hijackable)
+	hijacker, ok := rw.(http.Hijacker)
+	expect(t, ok, true)
+	_, _, err := hijacker.Hijack()
+	if err != nil {
+		t.Error(err)
+	}
+	expect(t, hijackable.Hijacked, true)
+}
+
+func Test_ResponseWrite_Hijack_NotOK(t *testing.T) {
+	hijackable := new(http.ResponseWriter)
+	rw := NewResponseWriter(*hijackable)
+	hijacker, ok := rw.(http.Hijacker)
+	expect(t, ok, true)
+	_, _, err := hijacker.Hijack()
+
+	refute(t, err, nil)
+}
+
+func Test_ResponseWriter_CloseNotify(t *testing.T) {
+	rec := newCloseNotifyingRecorder()
+	rw := NewResponseWriter(rec)
+	closed := false
+	notifier := rw.(http.CloseNotifier).CloseNotify()
+	rec.close()
+	select {
+	case <-notifier:
+		closed = true
+	case <-time.After(time.Second):
+	}
+	expect(t, closed, true)
+}
+
+func Test_ResponseWriter_Flusher(t *testing.T) {
+
+	rec := httptest.NewRecorder()
+	rw := NewResponseWriter(rec)
+
+	_, ok := rw.(http.Flusher)
+	expect(t, ok, true)
+}
+
+func Test_ResponseWriter_FlusherHandler(t *testing.T) {
+
+	// New martini instance
+	m := Classic()
+
+	m.Get("/events", func(w http.ResponseWriter, r *http.Request) {
+
+		f, ok := w.(http.Flusher)
+		expect(t, ok, true)
+
+		w.Header().Set("Content-Type", "text/event-stream")
+		w.Header().Set("Cache-Control", "no-cache")
+		w.Header().Set("Connection", "keep-alive")
+
+		for i := 0; i < 2; i++ {
+			time.Sleep(10 * time.Millisecond)
+			io.WriteString(w, "data: Hello\n\n")
+			f.Flush()
+		}
+
+	})
+
+	recorder := httptest.NewRecorder()
+	r, _ := http.NewRequest("GET", "/events", nil)
+	m.ServeHTTP(recorder, r)
+
+	if recorder.Code != 200 {
+		t.Error("Response not 200")
+	}
+
+	if recorder.Body.String() != "data: Hello\n\ndata: Hello\n\n" {
+		t.Error("Didn't receive correct body, got:", recorder.Body.String())
+	}
+
+}

Godeps/_workspace/src/github.com/codegangsta/martini/return_handler.go

@@ -0,0 +1,43 @@
+package martini
+
+import (
+	"github.com/codegangsta/inject"
+	"net/http"
+	"reflect"
+)
+
+// ReturnHandler is a service that Martini provides that is called
+// when a route handler returns something. The ReturnHandler is
+// responsible for writing to the ResponseWriter based on the values
+// that are passed into this function.
+type ReturnHandler func(Context, []reflect.Value)
+
+func defaultReturnHandler() ReturnHandler {
+	return func(ctx Context, vals []reflect.Value) {
+		rv := ctx.Get(inject.InterfaceOf((*http.ResponseWriter)(nil)))
+		res := rv.Interface().(http.ResponseWriter)
+		var responseVal reflect.Value
+		if len(vals) > 1 && vals[0].Kind() == reflect.Int {
+			res.WriteHeader(int(vals[0].Int()))
+			responseVal = vals[1]
+		} else if len(vals) > 0 {
+			responseVal = vals[0]
+		}
+		if canDeref(responseVal) {
+			responseVal = responseVal.Elem()
+		}
+		if isByteSlice(responseVal) {
+			res.Write(responseVal.Bytes())
+		} else {
+			res.Write([]byte(responseVal.String()))
+		}
+	}
+}
+
+func isByteSlice(val reflect.Value) bool {
+	return val.Kind() == reflect.Slice && val.Type().Elem().Kind() == reflect.Uint8
+}
+
+func canDeref(val reflect.Value) bool {
+	return val.Kind() == reflect.Interface || val.Kind() == reflect.Ptr
+}

Godeps/_workspace/src/github.com/codegangsta/martini/router.go

@@ -0,0 +1,331 @@
+package martini
+
+import (
+	"fmt"
+	"net/http"
+	"reflect"
+	"regexp"
+	"strconv"
+)
+
+// Params is a map of name/value pairs for named routes. An instance of martini.Params is available to be injected into any route handler.
+type Params map[string]string
+
+// Router is Martini's de-facto routing interface. Supports HTTP verbs, stacked handlers, and dependency injection.
+type Router interface {
+	Routes
+
+	// Group adds a group where related routes can be added.
+	Group(string, func(Router), ...Handler)
+	// Get adds a route for a HTTP GET request to the specified matching pattern.
+	Get(string, ...Handler) Route
+	// Patch adds a route for a HTTP PATCH request to the specified matching pattern.
+	Patch(string, ...Handler) Route
+	// Post adds a route for a HTTP POST request to the specified matching pattern.
+	Post(string, ...Handler) Route
+	// Put adds a route for a HTTP PUT request to the specified matching pattern.
+	Put(string, ...Handler) Route
+	// Delete adds a route for a HTTP DELETE request to the specified matching pattern.
+	Delete(string, ...Handler) Route
+	// Options adds a route for a HTTP OPTIONS request to the specified matching pattern.
+	Options(string, ...Handler) Route
+	// Head adds a route for a HTTP HEAD request to the specified matching pattern.
+	Head(string, ...Handler) Route
+	// Any adds a route for any HTTP method request to the specified matching pattern.
+	Any(string, ...Handler) Route
+
+	// NotFound sets the handlers that are called when a no route matches a request. Throws a basic 404 by default.
+	NotFound(...Handler)
+
+	// Handle is the entry point for routing. This is used as a martini.Handler
+	Handle(http.ResponseWriter, *http.Request, Context)
+}
+
+type router struct {
+	routes    []*route
+	notFounds []Handler
+	groups    []group
+}
+
+type group struct {
+	pattern  string
+	handlers []Handler
+}
+
+// NewRouter creates a new Router instance.
+// If you aren't using ClassicMartini, then you can add Routes as a
+// service with:
+//
+//	m := martini.New()
+//	r := martini.NewRouter()
+//	m.MapTo(r, (*martini.Routes)(nil))
+//
+// If you are using ClassicMartini, then this is done for you.
+func NewRouter() Router {
+	return &router{notFounds: []Handler{http.NotFound}, groups: make([]group, 0)}
+}
+
+func (r *router) Group(pattern string, fn func(Router), h ...Handler) {
+	r.groups = append(r.groups, group{pattern, h})
+	fn(r)
+	r.groups = r.groups[:len(r.groups)-1]
+}
+
+func (r *router) Get(pattern string, h ...Handler) Route {
+	return r.addRoute("GET", pattern, h)
+}
+
+func (r *router) Patch(pattern string, h ...Handler) Route {
+	return r.addRoute("PATCH", pattern, h)
+}
+
+func (r *router) Post(pattern string, h ...Handler) Route {
+	return r.addRoute("POST", pattern, h)
+}
+
+func (r *router) Put(pattern string, h ...Handler) Route {
+	return r.addRoute("PUT", pattern, h)
+}
+
+func (r *router) Delete(pattern string, h ...Handler) Route {
+	return r.addRoute("DELETE", pattern, h)
+}
+
+func (r *router) Options(pattern string, h ...Handler) Route {
+	return r.addRoute("OPTIONS", pattern, h)
+}
+
+func (r *router) Head(pattern string, h ...Handler) Route {
+	return r.addRoute("HEAD", pattern, h)
+}
+
+func (r *router) Any(pattern string, h ...Handler) Route {
+	return r.addRoute("*", pattern, h)
+}
+
+func (r *router) Handle(res http.ResponseWriter, req *http.Request, context Context) {
+	for _, route := range r.routes {
+		ok, vals := route.Match(req.Method, req.URL.Path)
+		if ok {
+			params := Params(vals)
+			context.Map(params)
+			route.Handle(context, res)
+			return
+		}
+	}
+
+	// no routes exist, 404
+	c := &routeContext{context, 0, r.notFounds}
+	context.MapTo(c, (*Context)(nil))
+	c.run()
+}
+
+func (r *router) NotFound(handler ...Handler) {
+	r.notFounds = handler
+}
+
+func (r *router) addRoute(method string, pattern string, handlers []Handler) *route {
+	if len(r.groups) > 0 {
+		group := r.groups[len(r.groups)-1]
+		pattern = group.pattern + pattern
+		h := make([]Handler, len(group.handlers)+len(handlers))
+		copy(h, group.handlers)
+		copy(h[len(group.handlers):], handlers)
+		handlers = h
+	}
+
+	route := newRoute(method, pattern, handlers)
+	route.Validate()
+	r.routes = append(r.routes, route)
+	return route
+}
+
+func (r *router) findRoute(name string) *route {
+	for _, route := range r.routes {
+		if route.name == name {
+			return route
+		}
+	}
+
+	return nil
+}
+
+// Route is an interface representing a Route in Martini's routing layer.
+type Route interface {
+	// URLWith returns a rendering of the Route's url with the given string params.
+	URLWith([]string) string
+	Name(string)
+}
+
+type route struct {
+	method   string
+	regex    *regexp.Regexp
+	handlers []Handler
+	pattern  string
+	name     string
+}
+
+func newRoute(method string, pattern string, handlers []Handler) *route {
+	route := route{method, nil, handlers, pattern, ""}
+	r := regexp.MustCompile(`:[^/#?()\.\\]+`)
+	pattern = r.ReplaceAllStringFunc(pattern, func(m string) string {
+		return fmt.Sprintf(`(?P<%s>[^/#?]+)`, m[1:])
+	})
+	r2 := regexp.MustCompile(`\*\*`)
+	var index int
+	pattern = r2.ReplaceAllStringFunc(pattern, func(m string) string {
+		index++
+		return fmt.Sprintf(`(?P<_%d>[^#?]*)`, index)
+	})
+	pattern += `\/?`
+	route.regex = regexp.MustCompile(pattern)
+	return &route
+}
+
+func (r route) MatchMethod(method string) bool {
+	return r.method == "*" || method == r.method || (method == "HEAD" && r.method == "GET")
+}
+
+func (r route) Match(method string, path string) (bool, map[string]string) {
+	// add Any method matching support
+	if !r.MatchMethod(method) {
+		return false, nil
+	}
+
+	matches := r.regex.FindStringSubmatch(path)
+	if len(matches) > 0 && matches[0] == path {
+		params := make(map[string]string)
+		for i, name := range r.regex.SubexpNames() {
+			if len(name) > 0 {
+				params[name] = matches[i]
+			}
+		}
+		return true, params
+	}
+	return false, nil
+}
+
+func (r *route) Validate() {
+	for _, handler := range r.handlers {
+		validateHandler(handler)
+	}
+}
+
+func (r *route) Handle(c Context, res http.ResponseWriter) {
+	context := &routeContext{c, 0, r.handlers}
+	c.MapTo(context, (*Context)(nil))
+	context.run()
+}
+
+// URLWith returns the url pattern replacing the parameters for its values
+func (r *route) URLWith(args []string) string {
+	if len(args) > 0 {
+		reg := regexp.MustCompile(`:[^/#?()\.\\]+`)
+		argCount := len(args)
+		i := 0
+		url := reg.ReplaceAllStringFunc(r.pattern, func(m string) string {
+			var val interface{}
+			if i < argCount {
+				val = args[i]
+			} else {
+				val = m
+			}
+			i += 1
+			return fmt.Sprintf(`%v`, val)
+		})
+
+		return url
+	}
+	return r.pattern
+}
+
+func (r *route) Name(name string) {
+	r.name = name
+}
+
+// Routes is a helper service for Martini's routing layer.
+type Routes interface {
+	// URLFor returns a rendered URL for the given route. Optional params can be passed to fulfill named parameters in the route.
+	URLFor(name string, params ...interface{}) string
+	// MethodsFor returns an array of methods available for the path
+	MethodsFor(path string) []string
+}
+
+// URLFor returns the url for the given route name.
+func (r *router) URLFor(name string, params ...interface{}) string {
+	route := r.findRoute(name)
+
+	if route == nil {
+		panic("route not found")
+	}
+
+	var args []string
+	for _, param := range params {
+		switch v := param.(type) {
+		case int:
+			args = append(args, strconv.FormatInt(int64(v), 10))
+		case string:
+			args = append(args, v)
+		default:
+			if v != nil {
+				panic("Arguments passed to URLFor must be integers or strings")
+			}
+		}
+	}
+
+	return route.URLWith(args)
+}
+
+func hasMethod(methods []string, method string) bool {
+	for _, v := range methods {
+		if v == method {
+			return true
+		}
+	}
+	return false
+}
+
+// MethodsFor returns all methods available for path
+func (r *router) MethodsFor(path string) []string {
+	methods := []string{}
+	for _, route := range r.routes {
+		matches := route.regex.FindStringSubmatch(path)
+		if len(matches) > 0 && matches[0] == path && !hasMethod(methods, route.method) {
+			methods = append(methods, route.method)
+		}
+	}
+	return methods
+}
+
+type routeContext struct {
+	Context
+	index    int
+	handlers []Handler
+}
+
+func (r *routeContext) Next() {
+	r.index += 1
+	r.run()
+}
+
+func (r *routeContext) run() {
+	for r.index < len(r.handlers) {
+		handler := r.handlers[r.index]
+		vals, err := r.Invoke(handler)
+		if err != nil {
+			panic(err)
+		}
+		r.index += 1
+
+		// if the handler returned something, write it to the http response
+		if len(vals) > 0 {
+			ev := r.Get(reflect.TypeOf(ReturnHandler(nil)))
+			handleReturn := ev.Interface().(ReturnHandler)
+			handleReturn(r, vals)
+		}
+
+		if r.Written() {
+			return
+		}
+	}
+}

Godeps/_workspace/src/github.com/codegangsta/martini/router_test.go

@@ -0,0 +1,410 @@
+package martini
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+func Test_Routing(t *testing.T) {
+	router := NewRouter()
+	recorder := httptest.NewRecorder()
+
+	req, _ := http.NewRequest("GET", "http://localhost:3000/foo", nil)
+	context := New().createContext(recorder, req)
+
+	req2, _ := http.NewRequest("POST", "http://localhost:3000/bar/bat", nil)
+	context2 := New().createContext(recorder, req2)
+
+	req3, _ := http.NewRequest("DELETE", "http://localhost:3000/baz", nil)
+	context3 := New().createContext(recorder, req3)
+
+	req4, _ := http.NewRequest("PATCH", "http://localhost:3000/bar/foo", nil)
+	context4 := New().createContext(recorder, req4)
+
+	req5, _ := http.NewRequest("GET", "http://localhost:3000/fez/this/should/match", nil)
+	context5 := New().createContext(recorder, req5)
+
+	req6, _ := http.NewRequest("PUT", "http://localhost:3000/pop/blah/blah/blah/bap/foo/", nil)
+	context6 := New().createContext(recorder, req6)
+
+	req7, _ := http.NewRequest("DELETE", "http://localhost:3000/wap//pow", nil)
+	context7 := New().createContext(recorder, req7)
+
+	req8, _ := http.NewRequest("HEAD", "http://localhost:3000/wap//pow", nil)
+	context8 := New().createContext(recorder, req8)
+
+	req9, _ := http.NewRequest("OPTIONS", "http://localhost:3000/opts", nil)
+	context9 := New().createContext(recorder, req9)
+
+	req10, _ := http.NewRequest("HEAD", "http://localhost:3000/foo", nil)
+	context10 := New().createContext(recorder, req10)
+
+	req11, _ := http.NewRequest("GET", "http://localhost:3000/bazz/inga", nil)
+	context11 := New().createContext(recorder, req11)
+
+	req12, _ := http.NewRequest("POST", "http://localhost:3000/bazz/inga", nil)
+	context12 := New().createContext(recorder, req12)
+
+	result := ""
+	router.Get("/foo", func(req *http.Request) {
+		result += "foo"
+	})
+	router.Patch("/bar/:id", func(params Params) {
+		expect(t, params["id"], "foo")
+		result += "barfoo"
+	})
+	router.Post("/bar/:id", func(params Params) {
+		expect(t, params["id"], "bat")
+		result += "barbat"
+	})
+	router.Put("/fizzbuzz", func() {
+		result += "fizzbuzz"
+	})
+	router.Delete("/bazzer", func(c Context) {
+		result += "baz"
+	})
+	router.Get("/fez/**", func(params Params) {
+		expect(t, params["_1"], "this/should/match")
+		result += "fez"
+	})
+	router.Put("/pop/**/bap/:id/**", func(params Params) {
+		expect(t, params["id"], "foo")
+		expect(t, params["_1"], "blah/blah/blah")
+		expect(t, params["_2"], "")
+		result += "popbap"
+	})
+	router.Delete("/wap/**/pow", func(params Params) {
+		expect(t, params["_1"], "")
+		result += "wappow"
+	})
+	router.Options("/opts", func() {
+		result += "opts"
+	})
+	router.Head("/wap/**/pow", func(params Params) {
+		expect(t, params["_1"], "")
+		result += "wappow"
+	})
+	router.Group("/bazz", func(r Router) {
+		r.Get("/inga", func() {
+			result += "get"
+		})
+
+		r.Post("/inga", func() {
+			result += "post"
+		})
+	}, func() {
+		result += "bazz"
+	}, func() {
+		result += "inga"
+	})
+
+	router.Handle(recorder, req, context)
+	router.Handle(recorder, req2, context2)
+	router.Handle(recorder, req3, context3)
+	router.Handle(recorder, req4, context4)
+	router.Handle(recorder, req5, context5)
+	router.Handle(recorder, req6, context6)
+	router.Handle(recorder, req7, context7)
+	router.Handle(recorder, req8, context8)
+	router.Handle(recorder, req9, context9)
+	router.Handle(recorder, req10, context10)
+	router.Handle(recorder, req11, context11)
+	router.Handle(recorder, req12, context12)
+	expect(t, result, "foobarbatbarfoofezpopbapwappowwappowoptsfoobazzingagetbazzingapost")
+	expect(t, recorder.Code, http.StatusNotFound)
+	expect(t, recorder.Body.String(), "404 page not found\n")
+}
+
+func Test_RouterHandlerStatusCode(t *testing.T) {
+	router := NewRouter()
+	router.Get("/foo", func() string {
+		return "foo"
+	})
+	router.Get("/bar", func() (int, string) {
+		return http.StatusForbidden, "bar"
+	})
+	router.Get("/baz", func() (string, string) {
+		return "baz", "BAZ!"
+	})
+	router.Get("/bytes", func() []byte {
+		return []byte("Bytes!")
+	})
+	router.Get("/interface", func() interface{} {
+		return "Interface!"
+	})
+
+	// code should be 200 if none is returned from the handler
+	recorder := httptest.NewRecorder()
+	req, _ := http.NewRequest("GET", "http://localhost:3000/foo", nil)
+	context := New().createContext(recorder, req)
+	router.Handle(recorder, req, context)
+	expect(t, recorder.Code, http.StatusOK)
+	expect(t, recorder.Body.String(), "foo")
+
+	// if a status code is returned, it should be used
+	recorder = httptest.NewRecorder()
+	req, _ = http.NewRequest("GET", "http://localhost:3000/bar", nil)
+	context = New().createContext(recorder, req)
+	router.Handle(recorder, req, context)
+	expect(t, recorder.Code, http.StatusForbidden)
+	expect(t, recorder.Body.String(), "bar")
+
+	// shouldn't use the first returned value as a status code if not an integer
+	recorder = httptest.NewRecorder()
+	req, _ = http.NewRequest("GET", "http://localhost:3000/baz", nil)
+	context = New().createContext(recorder, req)
+	router.Handle(recorder, req, context)
+	expect(t, recorder.Code, http.StatusOK)
+	expect(t, recorder.Body.String(), "baz")
+
+	// Should render bytes as a return value as well.
+	recorder = httptest.NewRecorder()
+	req, _ = http.NewRequest("GET", "http://localhost:3000/bytes", nil)
+	context = New().createContext(recorder, req)
+	router.Handle(recorder, req, context)
+	expect(t, recorder.Code, http.StatusOK)
+	expect(t, recorder.Body.String(), "Bytes!")
+
+	// Should render interface{} values.
+	recorder = httptest.NewRecorder()
+	req, _ = http.NewRequest("GET", "http://localhost:3000/interface", nil)
+	context = New().createContext(recorder, req)
+	router.Handle(recorder, req, context)
+	expect(t, recorder.Code, http.StatusOK)
+	expect(t, recorder.Body.String(), "Interface!")
+}
+
+func Test_RouterHandlerStacking(t *testing.T) {
+	router := NewRouter()
+	recorder := httptest.NewRecorder()
+
+	req, _ := http.NewRequest("GET", "http://localhost:3000/foo", nil)
+	context := New().createContext(recorder, req)
+
+	result := ""
+
+	f1 := func() {
+		result += "foo"
+	}
+
+	f2 := func(c Context) {
+		result += "bar"
+		c.Next()
+		result += "bing"
+	}
+
+	f3 := func() string {
+		result += "bat"
+		return "Hello world"
+	}
+
+	f4 := func() {
+		result += "baz"
+	}
+
+	router.Get("/foo", f1, f2, f3, f4)
+
+	router.Handle(recorder, req, context)
+	expect(t, result, "foobarbatbing")
+	expect(t, recorder.Body.String(), "Hello world")
+}
+
+var routeTests = []struct {
+	// in
+	method string
+	path   string
+
+	// out
+	ok     bool
+	params map[string]string
+}{
+	{"GET", "/foo/123/bat/321", true, map[string]string{"bar": "123", "baz": "321"}},
+	{"POST", "/foo/123/bat/321", false, map[string]string{}},
+	{"GET", "/foo/hello/bat/world", true, map[string]string{"bar": "hello", "baz": "world"}},
+	{"GET", "foo/hello/bat/world", false, map[string]string{}},
+	{"GET", "/foo/123/bat/321/", true, map[string]string{"bar": "123", "baz": "321"}},
+	{"GET", "/foo/123/bat/321//", false, map[string]string{}},
+	{"GET", "/foo/123//bat/321/", false, map[string]string{}},
+}
+
+func Test_RouteMatching(t *testing.T) {
+	route := newRoute("GET", "/foo/:bar/bat/:baz", nil)
+	for _, tt := range routeTests {
+		ok, params := route.Match(tt.method, tt.path)
+		if ok != tt.ok || params["bar"] != tt.params["bar"] || params["baz"] != tt.params["baz"] {
+			t.Errorf("expected: (%v, %v) got: (%v, %v)", tt.ok, tt.params, ok, params)
+		}
+	}
+}
+
+func Test_MethodsFor(t *testing.T) {
+	router := NewRouter()
+	recorder := httptest.NewRecorder()
+
+	req, _ := http.NewRequest("POST", "http://localhost:3000/foo", nil)
+	context := New().createContext(recorder, req)
+	context.MapTo(router, (*Routes)(nil))
+	router.Post("/foo/bar", func() {
+	})
+
+	router.Post("/fo", func() {
+	})
+
+	router.Get("/foo", func() {
+	})
+
+	router.Put("/foo", func() {
+	})
+
+	router.NotFound(func(routes Routes, w http.ResponseWriter, r *http.Request) {
+		methods := routes.MethodsFor(r.URL.Path)
+		if len(methods) != 0 {
+			w.Header().Set("Allow", strings.Join(methods, ","))
+			w.WriteHeader(http.StatusMethodNotAllowed)
+		}
+	})
+	router.Handle(recorder, req, context)
+	expect(t, recorder.Code, http.StatusMethodNotAllowed)
+	expect(t, recorder.Header().Get("Allow"), "GET,PUT")
+}
+
+func Test_NotFound(t *testing.T) {
+	router := NewRouter()
+	recorder := httptest.NewRecorder()
+
+	req, _ := http.NewRequest("GET", "http://localhost:3000/foo", nil)
+	context := New().createContext(recorder, req)
+
+	router.NotFound(func(res http.ResponseWriter) {
+		http.Error(res, "Nope", http.StatusNotFound)
+	})
+
+	router.Handle(recorder, req, context)
+	expect(t, recorder.Code, http.StatusNotFound)
+	expect(t, recorder.Body.String(), "Nope\n")
+}
+
+func Test_NotFoundAsHandler(t *testing.T) {
+	router := NewRouter()
+	recorder := httptest.NewRecorder()
+
+	req, _ := http.NewRequest("GET", "http://localhost:3000/foo", nil)
+	context := New().createContext(recorder, req)
+
+	router.NotFound(func() string {
+		return "not found"
+	})
+
+	router.Handle(recorder, req, context)
+	expect(t, recorder.Code, http.StatusOK)
+	expect(t, recorder.Body.String(), "not found")
+
+	recorder = httptest.NewRecorder()
+
+	context = New().createContext(recorder, req)
+
+	router.NotFound(func() (int, string) {
+		return 404, "not found"
+	})
+
+	router.Handle(recorder, req, context)
+	expect(t, recorder.Code, http.StatusNotFound)
+	expect(t, recorder.Body.String(), "not found")
+
+	recorder = httptest.NewRecorder()
+
+	context = New().createContext(recorder, req)
+
+	router.NotFound(func() (int, string) {
+		return 200, ""
+	})
+
+	router.Handle(recorder, req, context)
+	expect(t, recorder.Code, http.StatusOK)
+	expect(t, recorder.Body.String(), "")
+}
+
+func Test_NotFoundStacking(t *testing.T) {
+	router := NewRouter()
+	recorder := httptest.NewRecorder()
+
+	req, _ := http.NewRequest("GET", "http://localhost:3000/foo", nil)
+	context := New().createContext(recorder, req)
+
+	result := ""
+
+	f1 := func() {
+		result += "foo"
+	}
+
+	f2 := func(c Context) {
+		result += "bar"
+		c.Next()
+		result += "bing"
+	}
+
+	f3 := func() string {
+		result += "bat"
+		return "Not Found"
+	}
+
+	f4 := func() {
+		result += "baz"
+	}
+
+	router.NotFound(f1, f2, f3, f4)
+
+	router.Handle(recorder, req, context)
+	expect(t, result, "foobarbatbing")
+	expect(t, recorder.Body.String(), "Not Found")
+}
+
+func Test_Any(t *testing.T) {
+	router := NewRouter()
+	router.Any("/foo", func(res http.ResponseWriter) {
+		http.Error(res, "Nope", http.StatusNotFound)
+	})
+
+	recorder := httptest.NewRecorder()
+	req, _ := http.NewRequest("GET", "http://localhost:3000/foo", nil)
+	context := New().createContext(recorder, req)
+	router.Handle(recorder, req, context)
+
+	expect(t, recorder.Code, http.StatusNotFound)
+	expect(t, recorder.Body.String(), "Nope\n")
+
+	recorder = httptest.NewRecorder()
+	req, _ = http.NewRequest("PUT", "http://localhost:3000/foo", nil)
+	context = New().createContext(recorder, req)
+	router.Handle(recorder, req, context)
+
+	expect(t, recorder.Code, http.StatusNotFound)
+	expect(t, recorder.Body.String(), "Nope\n")
+}
+
+func Test_URLFor(t *testing.T) {
+	router := NewRouter()
+
+	router.Get("/foo", func() {
+		// Nothing
+	}).Name("foo")
+
+	router.Post("/bar/:id", func(params Params) {
+		// Nothing
+	}).Name("bar")
+
+	router.Get("/bar/:id/:name", func(params Params, routes Routes) {
+		expect(t, routes.URLFor("foo", nil), "/foo")
+		expect(t, routes.URLFor("bar", 5), "/bar/5")
+		expect(t, routes.URLFor("bar_id", 5, "john"), "/bar/5/john")
+	}).Name("bar_id")
+
+	// code should be 200 if none is returned from the handler
+	recorder := httptest.NewRecorder()
+	req, _ := http.NewRequest("GET", "http://localhost:3000/bar/foo/bar", nil)
+	context := New().createContext(recorder, req)
+	context.MapTo(router, (*Routes)(nil))
+	router.Handle(recorder, req, context)
+}

Godeps/_workspace/src/github.com/codegangsta/martini/static.go

@@ -0,0 +1,109 @@
+package martini
+
+import (
+	"log"
+	"net/http"
+	"path"
+	"strings"
+)
+
+// StaticOptions is a struct for specifying configuration options for the martini.Static middleware.
+type StaticOptions struct {
+	// Prefix is the optional prefix used to serve the static directory content
+	Prefix string
+	// SkipLogging will disable [Static] log messages when a static file is served.
+	SkipLogging bool
+	// IndexFile defines which file to serve as index if it exists.
+	IndexFile string
+	// Expires defines which user-defined function to use for producing a HTTP Expires Header
+	// https://developers.google.com/speed/docs/insights/LeverageBrowserCaching
+	Expires func() string
+}
+
+func prepareStaticOptions(options []StaticOptions) StaticOptions {
+	var opt StaticOptions
+	if len(options) > 0 {
+		opt = options[0]
+	}
+
+	// Defaults
+	if len(opt.IndexFile) == 0 {
+		opt.IndexFile = "index.html"
+	}
+	// Normalize the prefix if provided
+	if opt.Prefix != "" {
+		// Ensure we have a leading '/'
+		if opt.Prefix[0] != '/' {
+			opt.Prefix = "/" + opt.Prefix
+		}
+		// Remove any trailing '/'
+		opt.Prefix = strings.TrimRight(opt.Prefix, "/")
+	}
+	return opt
+}
+
+// Static returns a middleware handler that serves static files in the given directory.
+func Static(directory string, staticOpt ...StaticOptions) Handler {
+	dir := http.Dir(directory)
+	opt := prepareStaticOptions(staticOpt)
+
+	return func(res http.ResponseWriter, req *http.Request, log *log.Logger) {
+		if req.Method != "GET" && req.Method != "HEAD" {
+			return
+		}
+		file := req.URL.Path
+		// if we have a prefix, filter requests by stripping the prefix
+		if opt.Prefix != "" {
+			if !strings.HasPrefix(file, opt.Prefix) {
+				return
+			}
+			file = file[len(opt.Prefix):]
+			if file != "" && file[0] != '/' {
+				return
+			}
+		}
+		f, err := dir.Open(file)
+		if err != nil {
+			// discard the error?
+			return
+		}
+		defer f.Close()
+
+		fi, err := f.Stat()
+		if err != nil {
+			return
+		}
+
+		// try to serve index file
+		if fi.IsDir() {
+			// redirect if missing trailing slash
+			if !strings.HasSuffix(req.URL.Path, "/") {
+				http.Redirect(res, req, req.URL.Path+"/", http.StatusFound)
+				return
+			}
+
+			file = path.Join(file, opt.IndexFile)
+			f, err = dir.Open(file)
+			if err != nil {
+				return
+			}
+			defer f.Close()
+
+			fi, err = f.Stat()
+			if err != nil || fi.IsDir() {
+				return
+			}
+		}
+
+		if !opt.SkipLogging {
+			log.Println("[Static] Serving " + file)
+		}
+
+		// Add an Expires header to the static content
+		if opt.Expires != nil {
+			res.Header().Set("Expires", opt.Expires())
+		}
+
+		http.ServeContent(res, req, file, fi.ModTime(), f)
+	}
+}

Godeps/_workspace/src/github.com/codegangsta/martini/static_test.go

@@ -0,0 +1,200 @@
+package martini
+
+import (
+	"bytes"
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/codegangsta/inject"
+)
+
+func Test_Static(t *testing.T) {
+	response := httptest.NewRecorder()
+	response.Body = new(bytes.Buffer)
+
+	m := New()
+	r := NewRouter()
+
+	m.Use(Static("."))
+	m.Action(r.Handle)
+
+	req, err := http.NewRequest("GET", "http://localhost:3000/martini.go", nil)
+	if err != nil {
+		t.Error(err)
+	}
+	m.ServeHTTP(response, req)
+	expect(t, response.Code, http.StatusOK)
+	expect(t, response.Header().Get("Expires"), "")
+	if response.Body.Len() == 0 {
+		t.Errorf("Got empty body for GET request")
+	}
+}
+
+func Test_Static_Head(t *testing.T) {
+	response := httptest.NewRecorder()
+	response.Body = new(bytes.Buffer)
+
+	m := New()
+	r := NewRouter()
+
+	m.Use(Static("."))
+	m.Action(r.Handle)
+
+	req, err := http.NewRequest("HEAD", "http://localhost:3000/martini.go", nil)
+	if err != nil {
+		t.Error(err)
+	}
+
+	m.ServeHTTP(response, req)
+	expect(t, response.Code, http.StatusOK)
+	if response.Body.Len() != 0 {
+		t.Errorf("Got non-empty body for HEAD request")
+	}
+}
+
+func Test_Static_As_Post(t *testing.T) {
+	response := httptest.NewRecorder()
+
+	m := New()
+	r := NewRouter()
+
+	m.Use(Static("."))
+	m.Action(r.Handle)
+
+	req, err := http.NewRequest("POST", "http://localhost:3000/martini.go", nil)
+	if err != nil {
+		t.Error(err)
+	}
+
+	m.ServeHTTP(response, req)
+	expect(t, response.Code, http.StatusNotFound)
+}
+
+func Test_Static_BadDir(t *testing.T) {
+	response := httptest.NewRecorder()
+
+	m := Classic()
+
+	req, err := http.NewRequest("GET", "http://localhost:3000/martini.go", nil)
+	if err != nil {
+		t.Error(err)
+	}
+
+	m.ServeHTTP(response, req)
+	refute(t, response.Code, http.StatusOK)
+}
+
+func Test_Static_Options_Logging(t *testing.T) {
+	response := httptest.NewRecorder()
+
+	var buffer bytes.Buffer
+	m := &Martini{Injector: inject.New(), action: func() {}, logger: log.New(&buffer, "[martini] ", 0)}
+	m.Map(m.logger)
+	m.Map(defaultReturnHandler())
+
+	opt := StaticOptions{}
+	m.Use(Static(".", opt))
+
+	req, err := http.NewRequest("GET", "http://localhost:3000/martini.go", nil)
+	if err != nil {
+		t.Error(err)
+	}
+
+	m.ServeHTTP(response, req)
+	expect(t, response.Code, http.StatusOK)
+	expect(t, buffer.String(), "[martini] [Static] Serving /martini.go\n")
+
+	// Now without logging
+	m.Handlers()
+	buffer.Reset()
+
+	// This should disable logging
+	opt.SkipLogging = true
+	m.Use(Static(".", opt))
+
+	m.ServeHTTP(response, req)
+	expect(t, response.Code, http.StatusOK)
+	expect(t, buffer.String(), "")
+}
+
+func Test_Static_Options_ServeIndex(t *testing.T) {
+	response := httptest.NewRecorder()
+
+	var buffer bytes.Buffer
+	m := &Martini{Injector: inject.New(), action: func() {}, logger: log.New(&buffer, "[martini] ", 0)}
+	m.Map(m.logger)
+	m.Map(defaultReturnHandler())
+
+	opt := StaticOptions{IndexFile: "martini.go"} // Define martini.go as index file
+	m.Use(Static(".", opt))
+
+	req, err := http.NewRequest("GET", "http://localhost:3000/", nil)
+	if err != nil {
+		t.Error(err)
+	}
+
+	m.ServeHTTP(response, req)
+	expect(t, response.Code, http.StatusOK)
+	expect(t, buffer.String(), "[martini] [Static] Serving /martini.go\n")
+}
+
+func Test_Static_Options_Prefix(t *testing.T) {
+	response := httptest.NewRecorder()
+
+	var buffer bytes.Buffer
+	m := &Martini{Injector: inject.New(), action: func() {}, logger: log.New(&buffer, "[martini] ", 0)}
+	m.Map(m.logger)
+	m.Map(defaultReturnHandler())
+
+	// Serve current directory under /public
+	m.Use(Static(".", StaticOptions{Prefix: "/public"}))
+
+	// Check file content behaviour
+	req, err := http.NewRequest("GET", "http://localhost:3000/public/martini.go", nil)
+	if err != nil {
+		t.Error(err)
+	}
+
+	m.ServeHTTP(response, req)
+	expect(t, response.Code, http.StatusOK)
+	expect(t, buffer.String(), "[martini] [Static] Serving /martini.go\n")
+}
+
+func Test_Static_Options_Expires(t *testing.T) {
+	response := httptest.NewRecorder()
+
+	var buffer bytes.Buffer
+	m := &Martini{Injector: inject.New(), action: func() {}, logger: log.New(&buffer, "[martini] ", 0)}
+	m.Map(m.logger)
+	m.Map(defaultReturnHandler())
+
+	// Serve current directory under /public
+	m.Use(Static(".", StaticOptions{Expires: func() string { return "46" }}))
+
+	// Check file content behaviour
+	req, err := http.NewRequest("GET", "http://localhost:3000/martini.go", nil)
+	if err != nil {
+		t.Error(err)
+	}
+
+	m.ServeHTTP(response, req)
+	expect(t, response.Header().Get("Expires"), "46")
+}
+
+func Test_Static_Redirect(t *testing.T) {
+	response := httptest.NewRecorder()
+
+	m := New()
+	m.Use(Static(".", StaticOptions{Prefix: "/public"}))
+
+	req, err := http.NewRequest("GET", "http://localhost:3000/public", nil)
+	if err != nil {
+		t.Error(err)
+	}
+
+	m.ServeHTTP(response, req)
+	expect(t, response.Code, http.StatusFound)
+	expect(t, response.Header().Get("Location"), "/public/")
+}

Godeps/_workspace/src/github.com/codegangsta/martini/translations/README_zh_cn.md

@@ -0,0 +1,311 @@
+# Martini  [![wercker status](https://app.wercker.com/status/174bef7e3c999e103cacfe2770102266 "wercker status")](https://app.wercker.com/project/bykey/174bef7e3c999e103cacfe2770102266) [![GoDoc](https://godoc.org/github.com/codegangsta/martini?status.png)](http://godoc.org/github.com/codegangsta/martini)
+
+Martini是一个强大为了编写模块化Web应用而生的GO语言框架.
+
+## 第一个应用
+
+在你安装了GO语言和设置了你的[GOPATH](http://golang.org/doc/code.html#GOPATH)之后, 创建你的自己的`.go`文件, 这里我们假设它的名字叫做 `server.go`.
+
+~~~ go
+package main
+
+import "github.com/codegangsta/martini"
+
+func main() {
+  m := martini.Classic()
+  m.Get("/", func() string {
+    return "Hello world!"
+  })
+  m.Run()
+}
+~~~
+
+然后安装Martini的包. (注意Martini需要Go语言1.1或者以上的版本支持):
+~~~
+go get github.com/codegangsta/martini
+~~~
+
+最后运行你的服务:
+~~~
+go run server.go
+~~~
+
+这时你将会有一个Martini的服务监听了, 地址是: `localhost:3000`.
+
+## 获得帮助
+
+请加入: [邮件列表](https://groups.google.com/forum/#!forum/martini-go)
+
+或者可以查看在线演示地址: [演示视频](http://martini.codegangsta.io/#demo)
+
+## 功能列表
+* 使用极其简单.
+* 无侵入式的设计.
+* 很好的与其他的Go语言包协同使用.
+* 超赞的路径匹配和路由.
+* 模块化的设计 - 容易插入功能件，也容易将其拔出来.
+* 已有很多的中间件可以直接使用.
+* 框架内已拥有很好的开箱即用的功能支持.
+* **完全兼容[http.HandlerFunc](http://godoc.org/net/http#HandlerFunc)接口.**
+
+## 更多中间件
+更多的中间件和功能组件, 请查看代码仓库: [martini-contrib](https://github.com/martini-contrib).
+
+## 目录
+* [核心 Martini](#classic-martini)
+  * [处理器](#handlers)
+  * [路由](#routing)
+  * [服务](#services)
+  * [服务静态文件](#serving-static-files)
+* [中间件处理器](#middleware-handlers)
+  * [Next()](#next)
+* [常见问答](#faq)
+
+## 核心 Martini
+为了更快速的启用Martini, [martini.Classic()](http://godoc.org/github.com/codegangsta/martini#Classic) 提供了一些默认的方便Web开发的工具:
+~~~ go
+  m := martini.Classic()
+  // ... middleware and routing goes here
+  m.Run()
+~~~
+
+下面是Martini核心已经包含的功能 [martini.Classic()](http://godoc.org/github.com/codegangsta/martini#Classic):
+  * Request/Response Logging （请求/相应日志） - [martini.Logger](http://godoc.org/github.com/codegangsta/martini#Logger)
+  * Panic Recovery （容错） - [martini.Recovery](http://godoc.org/github.com/codegangsta/martini#Recovery)
+  * Static File serving （静态文件服务） - [martini.Static](http://godoc.org/github.com/codegangsta/martini#Static)
+  * Routing （路由） - [martini.Router](http://godoc.org/github.com/codegangsta/martini#Router)
+
+### 处理器
+处理器是Martini的灵魂和核心所在. 一个处理器基本上可以是任何的函数:
+~~~ go
+m.Get("/", func() {
+  println("hello world")
+})
+~~~
+
+#### 返回值
+当一个处理器返回结果的时候, Martini将会把返回值作为字符串写入到当前的[http.ResponseWriter](http://godoc.org/net/http#ResponseWriter)里面:
+~~~ go
+m.Get("/", func() string {
+  return "hello world" // HTTP 200 : "hello world"
+})
+~~~
+
+另外你也可以选择性的返回多一个状态码:
+~~~ go
+m.Get("/", func() (int, string) {
+  return 418, "i'm a teapot" // HTTP 418 : "i'm a teapot"
+})
+~~~
+
+#### 服务的注入 
+处理器是通过反射来调用的. Martini 通过*Dependency Injection* *（依赖注入）* 来为处理器注入参数列表. **这样使得Martini与Go语言的`http.HandlerFunc`接口完全兼容.** 
+
+如果你加入一个参数到你的处理器, Martini将会搜索它参数列表中的服务，并且通过类型判断来解决依赖关系:
+~~~ go
+m.Get("/", func(res http.ResponseWriter, req *http.Request) { // res 和 req 是通过Martini注入的
+  res.WriteHeader(200) // HTTP 200
+})
+~~~
+
+下面的这些服务已经被包含在核心Martini中: [martini.Classic()](http://godoc.org/github.com/codegangsta/martini#Classic):
+  * [*log.Logger](http://godoc.org/log#Logger) - Martini的全局日志.
+  * [martini.Context](http://godoc.org/github.com/codegangsta/martini#Context) - http request context （请求上下文）.
+  * [martini.Params](http://godoc.org/github.com/codegangsta/martini#Params) - `map[string]string` of named params found by route matching. （名字和参数键值对的参数列表）
+  * [martini.Routes](http://godoc.org/github.com/codegangsta/martini#Routes) - Route helper service. （路由协助处理）
+  * [http.ResponseWriter](http://godoc.org/net/http/#ResponseWriter) - http Response writer interface. (响应结果的流接口)
+  * [*http.Request](http://godoc.org/net/http/#Request) - http Request. （http请求)
+
+### 路由
+在Martini中, 路由是一个HTTP方法配对一个URL匹配模型. 每一个路由可以对应一个或多个处理器方法:
+~~~ go
+m.Get("/", func() {
+  // 显示
+})
+
+m.Patch("/", func() {
+  // 更新
+})
+
+m.Post("/", func() {
+  // 创建
+})
+
+m.Put("/", func() {
+  // 替换
+})
+
+m.Delete("/", func() {
+  // 删除
+})
+
+m.Options("/", func() {
+  // http 选项
+})
+
+m.NotFound(func() {
+  // 处理 404
+})
+~~~
+
+路由匹配的顺序是按照他们被定义的顺序执行的. 最先被定义的路由将会首先被用户请求匹配并调用.
+
+路由模型可能包含参数列表, 可以通过[martini.Params](http://godoc.org/github.com/codegangsta/martini#Params)服务来获取:
+~~~ go
+m.Get("/hello/:name", func(params martini.Params) string {
+  return "Hello " + params["name"]
+})
+~~~
+
+路由匹配可以通过正则表达式或者glob的形式:
+~~~ go
+m.Get("/hello/**", func(params martini.Params) string {
+  return "Hello " + params["_1"]
+})
+~~~
+
+路由处理器可以被相互叠加使用, 例如很有用的地方可以是在验证和授权的时候:
+~~~ go
+m.Get("/secret", authorize, func() {
+  // 该方法将会在authorize方法没有输出结果的时候执行.
+})
+~~~
+
+### 服务
+服务即是被注入到处理器中的参数. 你可以映射一个服务到 *全局* 或者 *请求* 的级别.
+
+
+#### 全局映射
+如果一个Martini实现了inject.Injector的接口, 那么映射成为一个服务就非常简单:
+~~~ go
+db := &MyDatabase{}
+m := martini.Classic()
+m.Map(db) // *MyDatabase 这个服务将可以在所有的处理器中被使用到.
+// ...
+m.Run()
+~~~
+
+#### 请求级别的映射
+映射在请求级别的服务可以用[martini.Context](http://godoc.org/github.com/codegangsta/martini#Context)来完成:
+~~~ go
+func MyCustomLoggerHandler(c martini.Context, req *http.Request) {
+  logger := &MyCustomLogger{req}
+  c.Map(logger) // 映射成为了 *MyCustomLogger
+}
+~~~
+
+#### 映射值到接口
+关于服务最强悍的地方之一就是它能够映射服务到接口. 例如说, 假设你想要覆盖[http.ResponseWriter](http://godoc.org/net/http#ResponseWriter)成为一个对象, 那么你可以封装它并包含你自己的额外操作, 你可以如下这样来编写你的处理器:
+~~~ go
+func WrapResponseWriter(res http.ResponseWriter, c martini.Context) {
+  rw := NewSpecialResponseWriter(res)
+  c.MapTo(rw, (*http.ResponseWriter)(nil)) // 覆盖 ResponseWriter 成为我们封装过的 ResponseWriter
+}
+~~~
+
+### 服务静态文件
+[martini.Classic()](http://godoc.org/github.com/codegangsta/martini#Classic) 默认会服务位于你服务器环境根目录下的"public"文件夹.
+你可以通过加入[martini.Static](http://godoc.org/github.com/codegangsta/martini#Static)的处理器来加入更多的静态文件服务的文件夹.
+~~~ go
+m.Use(martini.Static("assets")) // 也会服务静态文件于"assets"的文件夹
+~~~
+
+## 中间件处理器
+中间件处理器是工作于请求和路由之间的. 本质上来说和Martini其他的处理器没有分别. 你可以像如下这样添加一个中间件处理器到它的堆中:
+~~~ go
+m.Use(func() {
+  // 做一些中间件该做的事情
+})
+~~~
+
+你可以通过`Handlers`函数对中间件堆有完全的控制. 它将会替换掉之前的任何设置过的处理器:
+~~~ go
+m.Handlers(
+  Middleware1,
+  Middleware2,
+  Middleware3,
+)
+~~~
+
+中间件处理器可以非常好处理一些功能，像logging(日志), authorization(授权), authentication(认证), sessions(会话), error pages(错误页面), 以及任何其他的操作需要在http请求发生之前或者之后的:
+
+~~~ go
+// 验证api密匙
+m.Use(func(res http.ResponseWriter, req *http.Request) {
+  if req.Header.Get("X-API-KEY") != "secret123" {
+    res.WriteHeader(http.StatusUnauthorized)
+  }
+})
+~~~
+
+### Next()
+[Context.Next()](http://godoc.org/github.com/codegangsta/martini#Context)是一个可选的函数用于中间件处理器暂时放弃执行直到其他的处理器都执行完毕. 这样就可以很好的处理在http请求完成后需要做的操作.
+~~~ go
+// log 记录请求完成前后  (*译者注: 很巧妙，掌声鼓励.)
+m.Use(func(c martini.Context, log *log.Logger){
+  log.Println("before a request")
+
+  c.Next()
+  
+  log.Println("after a request")
+})
+~~~
+
+## 常见问答
+
+### 我在哪里可以找到中间件资源?
+
+可以查看 [martini-contrib](https://github.com/martini-contrib) 项目. 如果看了觉得没有什么好货色, 可以联系martini-contrib的团队成员为你创建一个新的代码资源库.
+
+* [auth](https://github.com/martini-contrib/auth) - 认证处理器.
+* [binding](https://github.com/martini-contrib/binding) - 映射/验证raw请求到结构体(structure)里的处理器
+* [gzip](https://github.com/martini-contrib/gzip) - 加入giz支持的处理器
+* [render](https://github.com/martini-contrib/render) - 渲染JSON和HTML模板的处理器.
+* [acceptlang](https://github.com/martini-contrib/acceptlang) - 解析`Accept-Language` HTTP报头的处理器.
+* [sessions](https://github.com/martini-contrib/sessions) - 提供会话服务支持的处理器.
+* [strip](https://github.com/martini-contrib/strip) - URL Prefix stripping.
+* [method](https://github.com/martini-contrib/method) - HTTP method overriding via Header or form fields.
+* [secure](https://github.com/martini-contrib/secure) - Implements a few quick security wins.
+* [encoder](https://github.com/martini-contrib/encoder) - Encoder service for rendering data in several formats and content negotiation.
+
+### 我如何整合到我现有的服务器中?
+
+由于Martini实现了 `http.Handler`, 所以它可以很简单的应用到现有Go服务器的子集中. 例如说这是一段在Google App Engine中的示例:
+
+~~~ go
+package hello
+
+import (
+  "net/http"
+  "github.com/codegangsta/martini"
+)
+
+func init() {
+  m := martini.Classic()
+  m.Get("/", func() string {
+    return "Hello world!"
+  })
+  http.Handle("/", m)
+}
+~~~
+
+### 我如何修改port/host?
+
+Martini的`Run`函数会检查PORT和HOST的环境变量并使用它们. 否则Martini将会默认使用localhost:3000
+如果想要自定义PORT和HOST, 使用`http.ListenAndServe`函数来代替.
+
+~~~ go
+  m := martini.Classic()
+  // ...
+  http.ListenAndServe(":8080", m)
+~~~
+
+## 贡献
+Martini项目想要保持简单且干净的代码. 大部分的代码应该贡献到[martini-contrib](https://github.com/martini-contrib)组织中作为一个项目. 如果你想要贡献Martini的核心代码也可以发起一个Pull Request.
+
+## 关于
+
+灵感来自于 [express](https://github.com/visionmedia/express) 和 [sinatra](https://github.com/sinatra/sinatra)
+
+Martini作者 [Code Gangsta](http://codegangsta.io/)
+译者: [Leon](http://github.com/leonli)

Godeps/_workspace/src/github.com/codegangsta/martini/wercker.yml

@@ -0,0 +1 @@
+box: wercker/golang@1.1.1

Godeps/_workspace/src/github.com/golang/groupcache/lru/lru.go

@@ -0,0 +1,121 @@
+/*
+Copyright 2013 Google Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package lru implements an LRU cache.
+package lru
+
+import "container/list"
+
+// Cache is an LRU cache. It is not safe for concurrent access.
+type Cache struct {
+	// MaxEntries is the maximum number of cache entries before
+	// an item is evicted. Zero means no limit.
+	MaxEntries int
+
+	// OnEvicted optionally specificies a callback function to be
+	// executed when an entry is purged from the cache.
+	OnEvicted func(key Key, value interface{})
+
+	ll    *list.List
+	cache map[interface{}]*list.Element
+}
+
+// A Key may be any value that is comparable. See http://golang.org/ref/spec#Comparison_operators
+type Key interface{}
+
+type entry struct {
+	key   Key
+	value interface{}
+}
+
+// New creates a new Cache.
+// If maxEntries is zero, the cache has no limit and it's assumed
+// that eviction is done by the caller.
+func New(maxEntries int) *Cache {
+	return &Cache{
+		MaxEntries: maxEntries,
+		ll:         list.New(),
+		cache:      make(map[interface{}]*list.Element),
+	}
+}
+
+// Add adds a value to the cache.
+func (c *Cache) Add(key Key, value interface{}) {
+	if c.cache == nil {
+		c.cache = make(map[interface{}]*list.Element)
+		c.ll = list.New()
+	}
+	if ee, ok := c.cache[key]; ok {
+		c.ll.MoveToFront(ee)
+		ee.Value.(*entry).value = value
+		return
+	}
+	ele := c.ll.PushFront(&entry{key, value})
+	c.cache[key] = ele
+	if c.MaxEntries != 0 && c.ll.Len() > c.MaxEntries {
+		c.RemoveOldest()
+	}
+}
+
+// Get looks up a key's value from the cache.
+func (c *Cache) Get(key Key) (value interface{}, ok bool) {
+	if c.cache == nil {
+		return
+	}
+	if ele, hit := c.cache[key]; hit {
+		c.ll.MoveToFront(ele)
+		return ele.Value.(*entry).value, true
+	}
+	return
+}
+
+// Remove removes the provided key from the cache.
+func (c *Cache) Remove(key Key) {
+	if c.cache == nil {
+		return
+	}
+	if ele, hit := c.cache[key]; hit {
+		c.removeElement(ele)
+	}
+}
+
+// RemoveOldest removes the oldest item from the cache.
+func (c *Cache) RemoveOldest() {
+	if c.cache == nil {
+		return
+	}
+	ele := c.ll.Back()
+	if ele != nil {
+		c.removeElement(ele)
+	}
+}
+
+func (c *Cache) removeElement(e *list.Element) {
+	c.ll.Remove(e)
+	kv := e.Value.(*entry)
+	delete(c.cache, kv.key)
+	if c.OnEvicted != nil {
+		c.OnEvicted(kv.key, kv.value)
+	}
+}
+
+// Len returns the number of items in the cache.
+func (c *Cache) Len() int {
+	if c.cache == nil {
+		return 0
+	}
+	return c.ll.Len()
+}

Godeps/_workspace/src/github.com/golang/groupcache/lru/lru_test.go

@@ -0,0 +1,73 @@
+/*
+Copyright 2013 Google Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package lru
+
+import (
+	"testing"
+)
+
+type simpleStruct struct {
+	int
+	string
+}
+
+type complexStruct struct {
+	int
+	simpleStruct
+}
+
+var getTests = []struct {
+	name       string
+	keyToAdd   interface{}
+	keyToGet   interface{}
+	expectedOk bool
+}{
+	{"string_hit", "myKey", "myKey", true},
+	{"string_miss", "myKey", "nonsense", false},
+	{"simple_struct_hit", simpleStruct{1, "two"}, simpleStruct{1, "two"}, true},
+	{"simeple_struct_miss", simpleStruct{1, "two"}, simpleStruct{0, "noway"}, false},
+	{"complex_struct_hit", complexStruct{1, simpleStruct{2, "three"}},
+		complexStruct{1, simpleStruct{2, "three"}}, true},
+}
+
+func TestGet(t *testing.T) {
+	for _, tt := range getTests {
+		lru := New(0)
+		lru.Add(tt.keyToAdd, 1234)
+		val, ok := lru.Get(tt.keyToGet)
+		if ok != tt.expectedOk {
+			t.Fatalf("%s: cache hit = %v; want %v", tt.name, ok, !ok)
+		} else if ok && val != 1234 {
+			t.Fatalf("%s expected get to return 1234 but got %v", tt.name, val)
+		}
+	}
+}
+
+func TestRemove(t *testing.T) {
+	lru := New(0)
+	lru.Add("myKey", 1234)
+	if val, ok := lru.Get("myKey"); !ok {
+		t.Fatal("TestRemove returned no match")
+	} else if val != 1234 {
+		t.Fatalf("TestRemove failed.  Expected %d, got %v", 1234, val)
+	}
+
+	lru.Remove("myKey")
+	if _, ok := lru.Get("myKey"); ok {
+		t.Fatal("TestRemove returned a removed entry")
+	}
+}

Godeps/_workspace/src/github.com/juju/ratelimit/LICENSE

@@ -0,0 +1,185 @@
+This software is licensed under the LGPLv3, included below.
+
+As a special exception to the GNU Lesser General Public License version 3
+("LGPL3"), the copyright holders of this Library give you permission to
+convey to a third party a Combined Work that links statically or dynamically
+to this Library without providing any Minimal Corresponding Source or
+Minimal Application Code as set out in 4d or providing the installation
+information set out in section 4e, provided that you comply with the other
+provisions of LGPL3 and provided that you meet, for the Application the
+terms and conditions of the license(s) which apply to the Application.
+
+Except as stated in this special exception, the provisions of LGPL3 will
+continue to comply in full to this Library. If you modify this Library, you
+may apply this exception to your version of this Library, but you are not
+obliged to do so. If you do not wish to do so, delete this exception
+statement from your version. This exception does not (and cannot) modify any
+license terms which apply to the Application, with which you must still
+comply.
+
+
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.

Godeps/_workspace/src/github.com/juju/ratelimit/README.md

@@ -0,0 +1,109 @@
+# ratelimit
+--
+    import "github.com/juju/ratelimit"
+
+The ratelimit package provides an efficient token bucket implementation. See
+http://en.wikipedia.org/wiki/Token_bucket.
+
+## Usage
+
+#### func  Reader
+
+```go
+func Reader(r io.Reader, bucket *Bucket) io.Reader
+```
+Reader returns a reader that is rate limited by the given token bucket. Each
+token in the bucket represents one byte.
+
+#### func  Writer
+
+```go
+func Writer(w io.Writer, bucket *Bucket) io.Writer
+```
+Writer returns a reader that is rate limited by the given token bucket. Each
+token in the bucket represents one byte.
+
+#### type Bucket
+
+```go
+type Bucket struct {
+}
+```
+
+Bucket represents a token bucket that fills at a predetermined rate. Methods on
+Bucket may be called concurrently.
+
+#### func  NewBucket
+
+```go
+func NewBucket(fillInterval time.Duration, capacity int64) *Bucket
+```
+NewBucket returns a new token bucket that fills at the rate of one token every
+fillInterval, up to the given maximum capacity. Both arguments must be positive.
+The bucket is initially full.
+
+#### func  NewBucketWithRate
+
+```go
+func NewBucketWithRate(rate float64, capacity int64) *Bucket
+```
+NewBucketWithRate returns a token bucket that fills the bucket at the rate of
+rate tokens per second up to the given maximum capacity. Because of limited
+clock resolution, at high rates, the actual rate may be up to 1% different from
+the specified rate.
+
+#### func (*Bucket) Rate
+
+```go
+func (tb *Bucket) Rate() float64
+```
+Rate returns the fill rate of the bucket, in tokens per second.
+
+#### func (*Bucket) Take
+
+```go
+func (tb *Bucket) Take(count int64) time.Duration
+```
+Take takes count tokens from the bucket without blocking. It returns the time
+that the caller should wait until the tokens are actually available.
+
+Note that if the request is irrevocable - there is no way to return tokens to
+the bucket once this method commits us to taking them.
+
+#### func (*Bucket) TakeAvailable
+
+```go
+func (tb *Bucket) TakeAvailable(count int64) int64
+```
+TakeAvailable takes up to count immediately available tokens from the bucket. It
+returns the number of tokens removed, or zero if there are no available tokens.
+It does not block.
+
+#### func (*Bucket) TakeMaxDuration
+
+```go
+func (tb *Bucket) TakeMaxDuration(count int64, maxWait time.Duration) (time.Duration, bool)
+```
+TakeMaxDuration is like Take, except that it will only take tokens from the
+bucket if the wait time for the tokens is no greater than maxWait.
+
+If it would take longer than maxWait for the tokens to become available, it does
+nothing and reports false, otherwise it returns the time that the caller should
+wait until the tokens are actually available, and reports true.
+
+#### func (*Bucket) Wait
+
+```go
+func (tb *Bucket) Wait(count int64)
+```
+Wait takes count tokens from the bucket, waiting until they are available.
+
+#### func (*Bucket) WaitMaxDuration
+
+```go
+func (tb *Bucket) WaitMaxDuration(count int64, maxWait time.Duration) bool
+```
+WaitMaxDuration is like Wait except that it will only take tokens from the
+bucket if it needs to wait for no greater than maxWait. It reports whether any
+tokens have been removed from the bucket If no tokens have been removed, it
+returns immediately.

Godeps/_workspace/src/github.com/juju/ratelimit/ratelimit.go

@@ -0,0 +1,227 @@
+// Copyright 2014 Canonical Ltd.
+// Licensed under the LGPLv3 with static-linking exception.
+// See LICENCE file for details.
+
+// The ratelimit package provides an efficient token bucket implementation.
+// See http://en.wikipedia.org/wiki/Token_bucket.
+package ratelimit
+
+import (
+	"strconv"
+	"sync"
+	"time"
+)
+
+// Bucket represents a token bucket that fills at a predetermined rate.
+// Methods on Bucket may be called concurrently.
+type Bucket struct {
+	startTime    time.Time
+	capacity     int64
+	quantum      int64
+	fillInterval time.Duration
+
+	// The mutex guards the fields following it.
+	mu sync.Mutex
+
+	// avail holds the number of available tokens
+	// in the bucket, as of availTick ticks from startTime.
+	// It will be negative when there are consumers
+	// waiting for tokens.
+	avail     int64
+	availTick int64
+}
+
+// NewBucket returns a new token bucket that fills at the
+// rate of one token every fillInterval, up to the given
+// maximum capacity. Both arguments must be
+// positive. The bucket is initially full.
+func NewBucket(fillInterval time.Duration, capacity int64) *Bucket {
+	return newBucketWithQuantum(fillInterval, capacity, 1)
+}
+
+// rateMargin specifes the allowed variance of actual
+// rate from specified rate. 1% seems reasonable.
+const rateMargin = 0.01
+
+// NewBucketWithRate returns a token bucket that fills the bucket
+// at the rate of rate tokens per second up to the given
+// maximum capacity. Because of limited clock resolution,
+// at high rates, the actual rate may be up to 1% different from the
+// specified rate.
+func NewBucketWithRate(rate float64, capacity int64) *Bucket {
+	for quantum := int64(1); quantum < 1<<50; quantum = nextQuantum(quantum) {
+		fillInterval := time.Duration(1e9 * float64(quantum) / rate)
+		if fillInterval <= 0 {
+			continue
+		}
+		tb := newBucketWithQuantum(fillInterval, capacity, quantum)
+		if diff := abs(tb.Rate() - rate); diff/rate <= rateMargin {
+			return tb
+		}
+	}
+	panic("cannot find suitable quantum for " + strconv.FormatFloat(rate, 'g', -1, 64))
+}
+
+// nextQuantum returns the next quantum to try after q.
+// We grow the quantum exponentially, but slowly, so we
+// get a good fit in the lower numbers.
+func nextQuantum(q int64) int64 {
+	q1 := q * 11 / 10
+	if q1 == q {
+		q1++
+	}
+	return q1
+}
+
+// newBucketWithQuantum is similar to NewBucket, but allows
+// the specification of the quantum size - quantum tokens
+// are added every fillInterval. This is so that we can get accurate
+// rates even when we want to add more than one token per ns.
+func newBucketWithQuantum(fillInterval time.Duration, capacity, quantum int64) *Bucket {
+	if fillInterval <= 0 {
+		panic("token bucket fill interval is not > 0")
+	}
+	if capacity <= 0 {
+		panic("token bucket capacity is not > 0")
+	}
+	if quantum <= 0 {
+		panic("token bucket quantum is not > 0")
+	}
+	return &Bucket{
+		startTime:    time.Now(),
+		capacity:     capacity,
+		quantum:      quantum,
+		avail:        capacity,
+		fillInterval: fillInterval,
+	}
+}
+
+// Wait takes count tokens from the bucket, waiting until they are
+// available.
+func (tb *Bucket) Wait(count int64) {
+	if d := tb.Take(count); d > 0 {
+		time.Sleep(d)
+	}
+}
+
+// WaitMaxDuration is like Wait except that it will
+// only take tokens from the bucket if it needs to wait
+// for no greater than maxWait. It reports whether
+// any tokens have been removed from the bucket
+// If no tokens have been removed, it returns immediately.
+func (tb *Bucket) WaitMaxDuration(count int64, maxWait time.Duration) bool {
+	d, ok := tb.TakeMaxDuration(count, maxWait)
+	if d > 0 {
+		time.Sleep(d)
+	}
+	return ok
+}
+
+const infinityDuration time.Duration = 0x7fffffffffffffff
+
+// Take takes count tokens from the bucket without blocking. It returns
+// the time that the caller should wait until the tokens are actually
+// available.
+//
+// Note that if the request is irrevocable - there is no way to return
+// tokens to the bucket once this method commits us to taking them.
+func (tb *Bucket) Take(count int64) time.Duration {
+	d, _ := tb.take(time.Now(), count, infinityDuration)
+	return d
+}
+
+// TakeMaxDuration is like Take, except that
+// it will only take tokens from the bucket if the wait
+// time for the tokens is no greater than maxWait.
+//
+// If it would take longer than maxWait for the tokens
+// to become available, it does nothing and reports false,
+// otherwise it returns the time that the caller should
+// wait until the tokens are actually available, and reports
+// true.
+func (tb *Bucket) TakeMaxDuration(count int64, maxWait time.Duration) (time.Duration, bool) {
+	return tb.take(time.Now(), count, maxWait)
+}
+
+// TakeAvailable takes up to count immediately available tokens from the
+// bucket. It returns the number of tokens removed, or zero if there are
+// no available tokens. It does not block.
+func (tb *Bucket) TakeAvailable(count int64) int64 {
+	return tb.takeAvailable(time.Now(), count)
+}
+
+// takeAvailable is the internal version of TakeAvailable - it takes the
+// current time as an argument to enable easy testing.
+func (tb *Bucket) takeAvailable(now time.Time, count int64) int64 {
+	if count <= 0 {
+		return 0
+	}
+	tb.mu.Lock()
+	defer tb.mu.Unlock()
+
+	tb.adjust(now)
+	if tb.avail <= 0 {
+		return 0
+	}
+	if count > tb.avail {
+		count = tb.avail
+	}
+	tb.avail -= count
+	return count
+}
+
+// Rate returns the fill rate of the bucket, in tokens per second.
+func (tb *Bucket) Rate() float64 {
+	return 1e9 * float64(tb.quantum) / float64(tb.fillInterval)
+}
+
+// take is the internal version of Take - it takes the current time as
+// an argument to enable easy testing.
+func (tb *Bucket) take(now time.Time, count int64, maxWait time.Duration) (time.Duration, bool) {
+	if count <= 0 {
+		return 0, true
+	}
+	tb.mu.Lock()
+	defer tb.mu.Unlock()
+
+	currentTick := tb.adjust(now)
+	avail := tb.avail - count
+	if avail >= 0 {
+		tb.avail = avail
+		return 0, true
+	}
+	// Round up the missing tokens to the nearest multiple
+	// of quantum - the tokens won't be available until
+	// that tick.
+	endTick := currentTick + (-avail+tb.quantum-1)/tb.quantum
+	endTime := tb.startTime.Add(time.Duration(endTick) * tb.fillInterval)
+	waitTime := endTime.Sub(now)
+	if waitTime > maxWait {
+		return 0, false
+	}
+	tb.avail = avail
+	return waitTime, true
+}
+
+// adjust adjusts the current bucket capacity based on the current time.
+// It returns the current tick.
+func (tb *Bucket) adjust(now time.Time) (currentTick int64) {
+	currentTick = int64(now.Sub(tb.startTime) / tb.fillInterval)
+
+	if tb.avail >= tb.capacity {
+		return
+	}
+	tb.avail += (currentTick - tb.availTick) * tb.quantum
+	if tb.avail > tb.capacity {
+		tb.avail = tb.capacity
+	}
+	tb.availTick = currentTick
+	return
+}
+
+func abs(f float64) float64 {
+	if f < 0 {
+		return -f
+	}
+	return f
+}

Godeps/_workspace/src/github.com/juju/ratelimit/ratelimit_test.go

@@ -0,0 +1,328 @@
+// Copyright 2014 Canonical Ltd.
+// Licensed under the LGPLv3 with static-linking exception.
+// See LICENCE file for details.
+
+package ratelimit
+
+import (
+	gc "launchpad.net/gocheck"
+
+	"testing"
+	"time"
+)
+
+func TestPackage(t *testing.T) {
+	gc.TestingT(t)
+}
+
+type rateLimitSuite struct{}
+
+var _ = gc.Suite(rateLimitSuite{})
+
+type takeReq struct {
+	time       time.Duration
+	count      int64
+	expectWait time.Duration
+}
+
+var takeTests = []struct {
+	about        string
+	fillInterval time.Duration
+	capacity     int64
+	reqs         []takeReq
+}{{
+	about:        "serial requests",
+	fillInterval: 250 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeReq{{
+		time:       0,
+		count:      0,
+		expectWait: 0,
+	}, {
+		time:       0,
+		count:      10,
+		expectWait: 0,
+	}, {
+		time:       0,
+		count:      1,
+		expectWait: 250 * time.Millisecond,
+	}, {
+		time:       250 * time.Millisecond,
+		count:      1,
+		expectWait: 250 * time.Millisecond,
+	}},
+}, {
+	about:        "concurrent requests",
+	fillInterval: 250 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeReq{{
+		time:       0,
+		count:      10,
+		expectWait: 0,
+	}, {
+		time:       0,
+		count:      2,
+		expectWait: 500 * time.Millisecond,
+	}, {
+		time:       0,
+		count:      2,
+		expectWait: 1000 * time.Millisecond,
+	}, {
+		time:       0,
+		count:      1,
+		expectWait: 1250 * time.Millisecond,
+	}},
+}, {
+	about:        "more than capacity",
+	fillInterval: 1 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeReq{{
+		time:       0,
+		count:      10,
+		expectWait: 0,
+	}, {
+		time:       20 * time.Millisecond,
+		count:      15,
+		expectWait: 5 * time.Millisecond,
+	}},
+}, {
+	about:        "sub-quantum time",
+	fillInterval: 10 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeReq{{
+		time:       0,
+		count:      10,
+		expectWait: 0,
+	}, {
+		time:       7 * time.Millisecond,
+		count:      1,
+		expectWait: 3 * time.Millisecond,
+	}, {
+		time:       8 * time.Millisecond,
+		count:      1,
+		expectWait: 12 * time.Millisecond,
+	}},
+}, {
+	about:        "within capacity",
+	fillInterval: 10 * time.Millisecond,
+	capacity:     5,
+	reqs: []takeReq{{
+		time:       0,
+		count:      5,
+		expectWait: 0,
+	}, {
+		time:       60 * time.Millisecond,
+		count:      5,
+		expectWait: 0,
+	}, {
+		time:       60 * time.Millisecond,
+		count:      1,
+		expectWait: 10 * time.Millisecond,
+	}, {
+		time:       80 * time.Millisecond,
+		count:      2,
+		expectWait: 10 * time.Millisecond,
+	}},
+}}
+
+func (rateLimitSuite) TestTake(c *gc.C) {
+	for i, test := range takeTests {
+		tb := NewBucket(test.fillInterval, test.capacity)
+		for j, req := range test.reqs {
+			d, ok := tb.take(tb.startTime.Add(req.time), req.count, infinityDuration)
+			c.Assert(ok, gc.Equals, true)
+			if d != req.expectWait {
+				c.Fatalf("test %d.%d, %s, got %v want %v", i, j, test.about, d, req.expectWait)
+			}
+		}
+	}
+}
+
+func (rateLimitSuite) TestTakeMaxDuration(c *gc.C) {
+	for i, test := range takeTests {
+		tb := NewBucket(test.fillInterval, test.capacity)
+		for j, req := range test.reqs {
+			if req.expectWait > 0 {
+				d, ok := tb.take(tb.startTime.Add(req.time), req.count, req.expectWait-1)
+				c.Assert(ok, gc.Equals, false)
+				c.Assert(d, gc.Equals, time.Duration(0))
+			}
+			d, ok := tb.take(tb.startTime.Add(req.time), req.count, req.expectWait)
+			c.Assert(ok, gc.Equals, true)
+			if d != req.expectWait {
+				c.Fatalf("test %d.%d, %s, got %v want %v", i, j, test.about, d, req.expectWait)
+			}
+		}
+	}
+}
+
+type takeAvailableReq struct {
+	time   time.Duration
+	count  int64
+	expect int64
+}
+
+var takeAvailableTests = []struct {
+	about        string
+	fillInterval time.Duration
+	capacity     int64
+	reqs         []takeAvailableReq
+}{{
+	about:        "serial requests",
+	fillInterval: 250 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeAvailableReq{{
+		time:   0,
+		count:  0,
+		expect: 0,
+	}, {
+		time:   0,
+		count:  10,
+		expect: 10,
+	}, {
+		time:   0,
+		count:  1,
+		expect: 0,
+	}, {
+		time:   250 * time.Millisecond,
+		count:  1,
+		expect: 1,
+	}},
+}, {
+	about:        "concurrent requests",
+	fillInterval: 250 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeAvailableReq{{
+		time:   0,
+		count:  5,
+		expect: 5,
+	}, {
+		time:   0,
+		count:  2,
+		expect: 2,
+	}, {
+		time:   0,
+		count:  5,
+		expect: 3,
+	}, {
+		time:   0,
+		count:  1,
+		expect: 0,
+	}},
+}, {
+	about:        "more than capacity",
+	fillInterval: 1 * time.Millisecond,
+	capacity:     10,
+	reqs: []takeAvailableReq{{
+		time:   0,
+		count:  10,
+		expect: 10,
+	}, {
+		time:   20 * time.Millisecond,
+		count:  15,
+		expect: 10,
+	}},
+}, {
+	about:        "within capacity",
+	fillInterval: 10 * time.Millisecond,
+	capacity:     5,
+	reqs: []takeAvailableReq{{
+		time:   0,
+		count:  5,
+		expect: 5,
+	}, {
+		time:   60 * time.Millisecond,
+		count:  5,
+		expect: 5,
+	}, {
+		time:   70 * time.Millisecond,
+		count:  1,
+		expect: 1,
+	}},
+}}
+
+func (rateLimitSuite) TestTakeAvailable(c *gc.C) {
+	for i, test := range takeAvailableTests {
+		tb := NewBucket(test.fillInterval, test.capacity)
+		for j, req := range test.reqs {
+			d := tb.takeAvailable(tb.startTime.Add(req.time), req.count)
+			if d != req.expect {
+				c.Fatalf("test %d.%d, %s, got %v want %v", i, j, test.about, d, req.expect)
+			}
+		}
+	}
+}
+
+func (rateLimitSuite) TestPanics(c *gc.C) {
+	c.Assert(func() { NewBucket(0, 1) }, gc.PanicMatches, "token bucket fill interval is not > 0")
+	c.Assert(func() { NewBucket(-2, 1) }, gc.PanicMatches, "token bucket fill interval is not > 0")
+	c.Assert(func() { NewBucket(1, 0) }, gc.PanicMatches, "token bucket capacity is not > 0")
+	c.Assert(func() { NewBucket(1, -2) }, gc.PanicMatches, "token bucket capacity is not > 0")
+}
+
+func isCloseTo(x, y, tolerance float64) bool {
+	return abs(x-y)/y < tolerance
+}
+
+func (rateLimitSuite) TestRate(c *gc.C) {
+	tb := NewBucket(1, 1)
+	if !isCloseTo(tb.Rate(), 1e9, 0.00001) {
+		c.Fatalf("got %v want 1e9", tb.Rate())
+	}
+	tb = NewBucket(2*time.Second, 1)
+	if !isCloseTo(tb.Rate(), 0.5, 0.00001) {
+		c.Fatalf("got %v want 0.5", tb.Rate())
+	}
+	tb = newBucketWithQuantum(100*time.Millisecond, 1, 5)
+	if !isCloseTo(tb.Rate(), 50, 0.00001) {
+		c.Fatalf("got %v want 50", tb.Rate())
+	}
+}
+
+func checkRate(c *gc.C, rate float64) {
+	tb := NewBucketWithRate(rate, 1<<62)
+	if !isCloseTo(tb.Rate(), rate, rateMargin) {
+		c.Fatalf("got %g want %v", tb.Rate(), rate)
+	}
+	d, ok := tb.take(tb.startTime, 1<<62, infinityDuration)
+	c.Assert(ok, gc.Equals, true)
+	c.Assert(d, gc.Equals, time.Duration(0))
+
+	// Check that the actual rate is as expected by
+	// asking for a not-quite multiple of the bucket's
+	// quantum and checking that the wait time
+	// correct.
+	d, ok = tb.take(tb.startTime, tb.quantum*2-tb.quantum/2, infinityDuration)
+	c.Assert(ok, gc.Equals, true)
+	expectTime := 1e9 * float64(tb.quantum) * 2 / rate
+	if !isCloseTo(float64(d), expectTime, rateMargin) {
+		c.Fatalf("rate %g: got %g want %v", rate, float64(d), expectTime)
+	}
+}
+
+func (rateLimitSuite) TestNewWithRate(c *gc.C) {
+	for rate := float64(1); rate < 1e6; rate += 7 {
+		checkRate(c, rate)
+	}
+	for _, rate := range []float64{
+		1024 * 1024 * 1024,
+		1e-5,
+		0.9e-5,
+		0.5,
+		0.9,
+		0.9e8,
+		3e12,
+		4e18,
+	} {
+		checkRate(c, rate)
+		checkRate(c, rate/3)
+		checkRate(c, rate*1.3)
+	}
+}
+
+func BenchmarkWait(b *testing.B) {
+	tb := NewBucket(1, 16*1024)
+	for i := b.N - 1; i >= 0; i-- {
+		tb.Wait(1)
+	}
+}

Godeps/_workspace/src/github.com/juju/ratelimit/reader.go

@@ -0,0 +1,51 @@
+// Copyright 2014 Canonical Ltd.
+// Licensed under the LGPLv3 with static-linking exception.
+// See LICENCE file for details.
+
+package ratelimit
+
+import "io"
+
+type reader struct {
+	r      io.Reader
+	bucket *Bucket
+}
+
+// Reader returns a reader that is rate limited by
+// the given token bucket. Each token in the bucket
+// represents one byte.
+func Reader(r io.Reader, bucket *Bucket) io.Reader {
+	return &reader{
+		r:      r,
+		bucket: bucket,
+	}
+}
+
+func (r *reader) Read(buf []byte) (int, error) {
+	n, err := r.r.Read(buf)
+	if n <= 0 {
+		return n, err
+	}
+	r.bucket.Wait(int64(n))
+	return n, err
+}
+
+type writer struct {
+	w      io.Writer
+	bucket *Bucket
+}
+
+// Writer returns a reader that is rate limited by
+// the given token bucket. Each token in the bucket
+// represents one byte.
+func Writer(w io.Writer, bucket *Bucket) io.Writer {
+	return &writer{
+		w:      w,
+		bucket: bucket,
+	}
+}
+
+func (w *writer) Write(buf []byte) (int, error) {
+	w.bucket.Wait(int64(len(buf)))
+	return w.w.Write(buf)
+}

LICENSE

@@ -0,0 +1,19 @@
+Copyright (C) 2014 Jakob Borg and other contributors (see the CONTRIBUTORS file).
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+- The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Makefile

@@ -1,177 +0,0 @@
-# Makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line.
-SPHINXOPTS    =
-SPHINXBUILD   = sphinx-build
-PAPER         =
-BUILDDIR      = _build
-
-# User-friendly check for sphinx-build
-ifeq ($(shell which $(SPHINXBUILD) >/dev/null 2>&1; echo $$?), 1)
-$(error The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed, then set the SPHINXBUILD environment variable to point to the full path of the '$(SPHINXBUILD)' executable. Alternatively you can add the directory with the executable to your PATH. If you don't have Sphinx installed, grab it from http://sphinx-doc.org/)
-endif
-
-# Internal variables.
-PAPEROPT_a4     = -D latex_paper_size=a4
-PAPEROPT_letter = -D latex_paper_size=letter
-ALLSPHINXOPTS   = -d $(BUILDDIR)/doctrees $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
-# the i18n builder cannot share the environment and doctrees with the others
-I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
-
-.PHONY: help clean html dirhtml singlehtml pickle json htmlhelp qthelp devhelp epub latex latexpdf text man changes linkcheck doctest gettext
-
-help:
-	@echo "Please use \`make <target>' where <target> is one of"
-	@echo "  html       to make standalone HTML files"
-	@echo "  dirhtml    to make HTML files named index.html in directories"
-	@echo "  singlehtml to make a single large HTML file"
-	@echo "  pickle     to make pickle files"
-	@echo "  json       to make JSON files"
-	@echo "  htmlhelp   to make HTML files and a HTML help project"
-	@echo "  qthelp     to make HTML files and a qthelp project"
-	@echo "  devhelp    to make HTML files and a Devhelp project"
-	@echo "  epub       to make an epub"
-	@echo "  latex      to make LaTeX files, you can set PAPER=a4 or PAPER=letter"
-	@echo "  latexpdf   to make LaTeX files and run them through pdflatex"
-	@echo "  latexpdfja to make LaTeX files and run them through platex/dvipdfmx"
-	@echo "  text       to make text files"
-	@echo "  man        to make manual pages"
-	@echo "  texinfo    to make Texinfo files"
-	@echo "  info       to make Texinfo files and run them through makeinfo"
-	@echo "  gettext    to make PO message catalogs"
-	@echo "  changes    to make an overview of all changed/added/deprecated items"
-	@echo "  xml        to make Docutils-native XML files"
-	@echo "  pseudoxml  to make pseudoxml-XML files for display purposes"
-	@echo "  linkcheck  to check all external links for integrity"
-	@echo "  doctest    to run all doctests embedded in the documentation (if enabled)"
-
-clean:
-	rm -rf $(BUILDDIR)/*
-
-html:
-	$(SPHINXBUILD) -b html $(ALLSPHINXOPTS) $(BUILDDIR)/html
-	@echo
-	@echo "Build finished. The HTML pages are in $(BUILDDIR)/html."
-
-dirhtml:
-	$(SPHINXBUILD) -b dirhtml $(ALLSPHINXOPTS) $(BUILDDIR)/dirhtml
-	@echo
-	@echo "Build finished. The HTML pages are in $(BUILDDIR)/dirhtml."
-
-singlehtml:
-	$(SPHINXBUILD) -b singlehtml $(ALLSPHINXOPTS) $(BUILDDIR)/singlehtml
-	@echo
-	@echo "Build finished. The HTML page is in $(BUILDDIR)/singlehtml."
-
-pickle:
-	$(SPHINXBUILD) -b pickle $(ALLSPHINXOPTS) $(BUILDDIR)/pickle
-	@echo
-	@echo "Build finished; now you can process the pickle files."
-
-json:
-	$(SPHINXBUILD) -b json $(ALLSPHINXOPTS) $(BUILDDIR)/json
-	@echo
-	@echo "Build finished; now you can process the JSON files."
-
-htmlhelp:
-	$(SPHINXBUILD) -b htmlhelp $(ALLSPHINXOPTS) $(BUILDDIR)/htmlhelp
-	@echo
-	@echo "Build finished; now you can run HTML Help Workshop with the" \
-	      ".hhp project file in $(BUILDDIR)/htmlhelp."
-
-qthelp:
-	$(SPHINXBUILD) -b qthelp $(ALLSPHINXOPTS) $(BUILDDIR)/qthelp
-	@echo
-	@echo "Build finished; now you can run "qcollectiongenerator" with the" \
-	      ".qhcp project file in $(BUILDDIR)/qthelp, like this:"
-	@echo "# qcollectiongenerator $(BUILDDIR)/qthelp/Syncthing.qhcp"
-	@echo "To view the help file:"
-	@echo "# assistant -collectionFile $(BUILDDIR)/qthelp/Syncthing.qhc"
-
-devhelp:
-	$(SPHINXBUILD) -b devhelp $(ALLSPHINXOPTS) $(BUILDDIR)/devhelp
-	@echo
-	@echo "Build finished."
-	@echo "To view the help file:"
-	@echo "# mkdir -p $$HOME/.local/share/devhelp/Syncthing"
-	@echo "# ln -s $(BUILDDIR)/devhelp $$HOME/.local/share/devhelp/Syncthing"
-	@echo "# devhelp"
-
-epub:
-	$(SPHINXBUILD) -b epub $(ALLSPHINXOPTS) $(BUILDDIR)/epub
-	@echo
-	@echo "Build finished. The epub file is in $(BUILDDIR)/epub."
-
-latex:
-	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
-	@echo
-	@echo "Build finished; the LaTeX files are in $(BUILDDIR)/latex."
-	@echo "Run \`make' in that directory to run these through (pdf)latex" \
-	      "(use \`make latexpdf' here to do that automatically)."
-
-latexpdf:
-	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
-	@echo "Running LaTeX files through pdflatex..."
-	$(MAKE) -C $(BUILDDIR)/latex all-pdf
-	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
-
-latexpdfja:
-	$(SPHINXBUILD) -b latex $(ALLSPHINXOPTS) $(BUILDDIR)/latex
-	@echo "Running LaTeX files through platex and dvipdfmx..."
-	$(MAKE) -C $(BUILDDIR)/latex all-pdf-ja
-	@echo "pdflatex finished; the PDF files are in $(BUILDDIR)/latex."
-
-text:
-	$(SPHINXBUILD) -b text $(ALLSPHINXOPTS) $(BUILDDIR)/text
-	@echo
-	@echo "Build finished. The text files are in $(BUILDDIR)/text."
-
-man:
-	$(SPHINXBUILD) -b man $(ALLSPHINXOPTS) $(BUILDDIR)/man
-	@echo
-	@echo "Build finished. The manual pages are in $(BUILDDIR)/man."
-
-texinfo:
-	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
-	@echo
-	@echo "Build finished. The Texinfo files are in $(BUILDDIR)/texinfo."
-	@echo "Run \`make' in that directory to run these through makeinfo" \
-	      "(use \`make info' here to do that automatically)."
-
-info:
-	$(SPHINXBUILD) -b texinfo $(ALLSPHINXOPTS) $(BUILDDIR)/texinfo
-	@echo "Running Texinfo files through makeinfo..."
-	make -C $(BUILDDIR)/texinfo info
-	@echo "makeinfo finished; the Info files are in $(BUILDDIR)/texinfo."
-
-gettext:
-	$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) $(BUILDDIR)/locale
-	@echo
-	@echo "Build finished. The message catalogs are in $(BUILDDIR)/locale."
-
-changes:
-	$(SPHINXBUILD) -b changes $(ALLSPHINXOPTS) $(BUILDDIR)/changes
-	@echo
-	@echo "The overview file is in $(BUILDDIR)/changes."
-
-linkcheck:
-	$(SPHINXBUILD) -b linkcheck $(ALLSPHINXOPTS) $(BUILDDIR)/linkcheck
-	@echo
-	@echo "Link check complete; look for any errors in the above output " \
-	      "or in $(BUILDDIR)/linkcheck/output.txt."
-
-doctest:
-	$(SPHINXBUILD) -b doctest $(ALLSPHINXOPTS) $(BUILDDIR)/doctest
-	@echo "Testing of doctests in the sources finished, look at the " \
-	      "results in $(BUILDDIR)/doctest/output.txt."
-
-xml:
-	$(SPHINXBUILD) -b xml $(ALLSPHINXOPTS) $(BUILDDIR)/xml
-	@echo
-	@echo "Build finished. The XML files are in $(BUILDDIR)/xml."
-
-pseudoxml:
-	$(SPHINXBUILD) -b pseudoxml $(ALLSPHINXOPTS) $(BUILDDIR)/pseudoxml
-	@echo
-	@echo "Build finished. The pseudo-XML files are in $(BUILDDIR)/pseudoxml."

README.md

@@ -0,0 +1,49 @@
+syncthing [![Build Status](https://drone.io/github.com/calmh/syncthing/status.png)](https://drone.io/github.com/calmh/syncthing/latest)
+=========
+
+This is the `syncthing` project. The following are the project goals:
+
+ 1. Define a protocol for synchronization of a file repository between a
+    number of collaborating nodes. The protocol should be well defined,
+    unambigous, easily understood, free to use, efficient, secure and
+    languange neutral. This is the [Block Exchange
+    Protocol](https://github.com/calmh/syncthing/blob/master/protocol/PROTOCOL.md).
+
+ 2. Provide the reference implementation to demonstrate the usability of
+    said protocol. This is the `syncthing` utility. It is the hope that
+    alternative, compatible implementations of the protocol will come to
+    exist.
+
+The two are evolving together; the protocol is not to be considered
+stable until syncthing 1.0 is released, at which point it is locked down
+for incompatible changes.
+
+Syncthing does not use the BitTorrent protocol. The reasons for this are
+1) we don't know if BitTorrent Sync does either, so there's nothing to
+be compatible with, 2) BitTorrent includes a lot of functionality for
+making sure large swarms of selfish agents behave and somehow work
+towards a common goal. Here we have a much smaller swarm of cooperative
+agents and a simpler approach will suffice.
+
+Signed Releases
+---------------
+
+As of v0.7.0 and onwards, git tags and release binaries are GPG signed with
+the key BCE524C7 (http://nym.se/gpg.txt). The signature is included in the
+normal release bundle as `syncthing.asc` or `syncthing.exe.asc`.
+
+Documentation
+=============
+
+The syncthing documentation is kept on the
+[GitHub Wiki](https://github.com/calmh/syncthing/wiki).
+
+License
+=======
+
+All documentation and protocol specifications are licensed
+under the [Creative Commons Attribution 4.0 International
+License](http://creativecommons.org/licenses/by/4.0/).
+
+All code is licensed under the [MIT
+License](https://github.com/calmh/syncthing/blob/master/LICENSE).

README.rst

@@ -1,51 +0,0 @@
-Syncthing Docs
-==============
-
-This repo is the source behind http://docs.syncthing.net/.
-
-Editing
--------
-
-To edit the documentation you need a GitHub account. Once you have created one
-and logged in, you can edit any page by navigating to the corresponding file and
-clicking the edit (pen) icon. This will create a so called "fork" and a "pull
-request", which will be approved by one of the existing documentation team
-members. Once you have made a contribution or two, you can be added to the
-documentation team and perform edits without requiring approval.
-
-In the long run, learning to use Git_ and running Sphinx_ on your computer is
-beneficial.
-
-First steps to run is locally
- ::
- 
-  git clone https://github.com/syncthing/docs.git
-  pip install -U Sphinx
-  cd docs 
-  make html
-  # open _build/html/index.html
-
-Structure
----------
-
-The documentation is divided into an index page (``index.rst``) and various
-subsections. The sections are:
-
-- Introductory information in ``intro``.
-- Information for users in ``users``.
-- Information for developers in ``dev``.
-
-The documentation uses the `rst format`_. For a starting point check out the
-`reStructuredText Primer`_
-
-.. _Git: http://www.git-scm.com/
-.. _Sphinx: http://sphinx-doc.org/
-.. _`rst format`: http://docutils.sourceforge.net/docs/ref/rst/restructuredtext.html
-.. _`reStructuredText Primer`: http://sphinx-doc.org/rest.html
-
-License
-=======
-
-All documentation and protocol specifications are licensed under the `Creative
-Commons Attribution 4.0 International License
-<http://creativecommons.org/licenses/by/4.0/>`__.

_static/syncthing.css

@@ -1,28 +0,0 @@
-/* These don't get the default font size from the theme for whatever reason. */
-.rst-content blockquote, .rst-content li, .rst-content dd, .rst-content dt, .rst-content th, .rst-content td {
-	font-size: 18px !important;
-	line-height: 27px !important;
-}
-/* The theme sets this to 75% which seems to small to me. */
-.rst-content code {
-	font-size: 95%;
-}
-/* Bring back some vertical spacing between bullet points. */
-.rst-content li {
-	margin-bottom: 14px;
-}
-/* Make block quotes stand out a bit more. */
-.rst-content blockquote {
-	border-left: 5px solid #f0f0f0;
-	padding-left: 22px;
-	margin-left: 0px;
-}
-.versionadded p {
-	padding: 14px;
-	background-color: rgb(231, 242, 250);
-	color: rgb(41, 128, 185);
-}
-/* Add a strike-through class. */
-.strike {
-	text-decoration: line-through;
-}

_themes/sphinx_rtd_theme/__init__.py

@@ -1,17 +0,0 @@
-"""Sphinx ReadTheDocs theme.
-
-From https://github.com/ryan-roemer/sphinx-bootstrap-theme.
-
-"""
-import os
-
-VERSION = (0, 1, 8)
-
-__version__ = ".".join(str(v) for v in VERSION)
-__version_full__ = __version__
-
-
-def get_html_theme_path():
-    """Return list of HTML theme paths."""
-    cur_dir = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
-    return cur_dir

_themes/sphinx_rtd_theme/breadcrumbs.html

@@ -1,23 +0,0 @@
-<div role="navigation" aria-label="breadcrumbs navigation">
-  <ul class="wy-breadcrumbs">
-    <li><a href="{{ pathto(master_doc) }}">Docs</a> &raquo;</li>
-      {% for doc in parents %}
-          <li><a href="{{ doc.link|e }}">{{ doc.title }}</a> &raquo;</li>
-      {% endfor %}
-    <li>{{ title }}</li>
-      <li class="wy-breadcrumbs-aside">
-        {% if pagename != "search" %}
-          {% if display_github %}
-            <a href="https://{{ github_host|default("github.com") }}/{{ github_user }}/{{ github_repo }}/blob/{{ github_version }}{{ conf_py_path }}{{ pagename }}{{ source_suffix }}" class="fa fa-github"> Edit on GitHub</a>
-          {% elif display_bitbucket %}
-            <a href="https://bitbucket.org/{{ bitbucket_user }}/{{ bitbucket_repo }}/src/{{ bitbucket_version}}{{ conf_py_path }}{{ pagename }}{{ source_suffix }}" class="fa fa-bitbucket"> Edit on Bitbucket</a>
-          {% elif show_source and source_url_prefix %}
-            <a href="{{ source_url_prefix }}{{ pagename }}{{ source_suffix }}">View page source</a>
-          {% elif show_source and has_source and sourcename %}
-            <a href="{{ pathto('_sources/' + sourcename, true)|e }}" rel="nofollow"> View page source</a>
-          {% endif %}
-        {% endif %}
-      </li>
-  </ul>
-  <hr/>
-</div>

_themes/sphinx_rtd_theme/footer.html

@@ -1,36 +0,0 @@
-<footer>
-  {% if next or prev %}
-    <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
-      {% if next %}
-        <a href="{{ next.link|e }}" class="btn btn-neutral float-right" title="{{ next.title|striptags|e }}" accesskey="n">Next <span class="fa fa-arrow-circle-right"></span></a>
-      {% endif %}
-      {% if prev %}
-        <a href="{{ prev.link|e }}" class="btn btn-neutral" title="{{ prev.title|striptags|e }}" accesskey="p"><span class="fa fa-arrow-circle-left"></span> Previous</a>
-      {% endif %}
-    </div>
-  {% endif %}
-
-  <hr/>
-
-  <div role="contentinfo">
-    <p>
-    {%- if show_copyright %}
-      {%- if hasdoc('copyright') %}
-        {% trans path=pathto('copyright'), copyright=copyright|e %}&copy; <a href="{{ path }}">Copyright</a> {{ copyright }}.{% endtrans %}
-      {%- else %}
-        {% trans copyright=copyright|e %}&copy; Copyright {{ copyright }}.{% endtrans %}
-      {%- endif %}
-    {%- endif %}
-
-    {%- if last_updated %}
-      {% trans last_updated=last_updated|e %}Last updated on {{ last_updated }}.{% endtrans %}
-    {%- endif %}
-    </p>
-  </div>
-
-  {%- if show_sphinx %}
-  {% trans %}Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>{% endtrans %}.
-  {%- endif %}
-
-</footer>
-

_themes/sphinx_rtd_theme/layout.html

@@ -1,181 +0,0 @@
-{# TEMPLATE VAR SETTINGS #}
-{%- set url_root = pathto('', 1) %}
-{%- if url_root == '#' %}{% set url_root = '' %}{% endif %}
-{%- if not embedded and docstitle %}
-  {%- set titlesuffix = " — "|safe + docstitle|e %}
-{%- else %}
-  {%- set titlesuffix = "" %}
-{%- endif %}
-
-<!DOCTYPE html>
-<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
-<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
-<head>
-  <meta charset="utf-8">
-  {{ metatags }}
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  {% block htmltitle %}
-  <title>{{ title|striptags|e }}{{ titlesuffix }}</title>
-  {% endblock %}
-
-  {# FAVICON #}
-  {% if favicon %}
-    <link rel="shortcut icon" href="{{ pathto('_static/' + favicon, 1) }}"/>
-  {% endif %}
-
-  {# CSS #}
-
-  {# OPENSEARCH #}
-  {% if not embedded %}
-    {% if use_opensearch %}
-      <link rel="search" type="application/opensearchdescription+xml" title="{% trans docstitle=docstitle|e %}Search within {{ docstitle }}{% endtrans %}" href="{{ pathto('_static/opensearch.xml', 1) }}"/>
-    {% endif %}
-
-  {% endif %}
-
-  {# RTD hosts this file, so just load on non RTD builds #}
-  {% if not READTHEDOCS %}
-    <link rel="stylesheet" href="{{ pathto('_static/' + style, 1) }}" type="text/css" />
-  {% endif %}
-
-  {% for cssfile in css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-  {% endfor %}
-
-  {% for cssfile in extra_css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-  {% endfor %}
-
-  {%- block linktags %}
-    {%- if hasdoc('about') %}
-        <link rel="author" title="{{ _('About these documents') }}"
-              href="{{ pathto('about') }}"/>
-    {%- endif %}
-    {%- if hasdoc('genindex') %}
-        <link rel="index" title="{{ _('Index') }}"
-              href="{{ pathto('genindex') }}"/>
-    {%- endif %}
-    {%- if hasdoc('search') %}
-        <link rel="search" title="{{ _('Search') }}" href="{{ pathto('search') }}"/>
-    {%- endif %}
-    {%- if hasdoc('copyright') %}
-        <link rel="copyright" title="{{ _('Copyright') }}" href="{{ pathto('copyright') }}"/>
-    {%- endif %}
-    <link rel="top" title="{{ docstitle|e }}" href="{{ pathto('index') }}"/>
-    {%- if parents %}
-        <link rel="up" title="{{ parents[-1].title|striptags|e }}" href="{{ parents[-1].link|e }}"/>
-    {%- endif %}
-    {%- if next %}
-        <link rel="next" title="{{ next.title|striptags|e }}" href="{{ next.link|e }}"/>
-    {%- endif %}
-    {%- if prev %}
-        <link rel="prev" title="{{ prev.title|striptags|e }}" href="{{ prev.link|e }}"/>
-    {%- endif %}
-  {%- endblock %}
-  {%- block extrahead %} {% endblock %}
-
-  {# Keep modernizr in head - http://modernizr.com/docs/#installing #}
-  <script src="_static/js/modernizr.min.js"></script>
-
-</head>
-
-<body class="wy-body-for-nav" role="document">
-
-  <div class="wy-grid-for-nav">
-
-    {# SIDE NAV, TOGGLES ON MOBILE #}
-    <nav data-toggle="wy-nav-shift" class="wy-nav-side">
-      <div class="wy-side-nav-search">
-        {% block sidebartitle %}
-
-        {% if logo and theme_logo_only %}
-          <a href="{{ pathto(master_doc) }}">
-        {% else %}
-          <a href="{{ pathto(master_doc) }}" class="icon icon-home"> {{ project }}
-        {% endif %}
-
-        {% if logo %}
-          {# Not strictly valid HTML, but it's the only way to display/scale it properly, without weird scripting or heaps of work #}
-          <img src="{{ pathto('_static/' + logo, 1) }}" class="logo" />
-        {% endif %}
-        </a>
-
-        {% include "searchbox.html" %}
-
-        {% endblock %}
-      </div>
-
-      <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
-        {% block menu %}
-          {% set toctree = toctree(maxdepth=4, collapse=False, includehidden=True) %}
-          {% if toctree %}
-              {{ toctree }}
-          {% else %}
-              <!-- Local TOC -->
-              <div class="local-toc">{{ toc }}</div>
-          {% endif %}
-        {% endblock %}
-      </div>
-      &nbsp;
-    </nav>
-
-    <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
-
-      {# MOBILE NAV, TRIGGLES SIDE NAV ON TOGGLE #}
-      <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
-        <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
-        <a href="{{ pathto(master_doc) }}">{{ project }}</a>
-      </nav>
-
-
-      {# PAGE CONTENT #}
-      <div class="wy-nav-content">
-        <div class="rst-content">
-          {% include "breadcrumbs.html" %}
-          <div role="main" class="document">
-            {% block body %}{% endblock %}
-          </div>
-          {% include "footer.html" %}
-        </div>
-      </div>
-
-    </section>
-
-  </div>
-  {% include "versions.html" %}
-
-  {% if not embedded %}
-
-    <script type="text/javascript">
-        var DOCUMENTATION_OPTIONS = {
-            URL_ROOT:'{{ url_root }}',
-            VERSION:'{{ release|e }}',
-            COLLAPSE_INDEX:false,
-            FILE_SUFFIX:'{{ '' if no_search_suffix else file_suffix }}',
-            HAS_SOURCE:  {{ has_source|lower }}
-        };
-    </script>
-    {%- for scriptfile in script_files %}
-      <script type="text/javascript" src="{{ pathto(scriptfile, 1) }}"></script>
-    {%- endfor %}
-
-  {% endif %}
-
-  {# RTD hosts this file, so just load on non RTD builds #}
-  {% if not READTHEDOCS %}
-    <script type="text/javascript" src="{{ pathto('_static/js/theme.js', 1) }}"></script>
-  {% endif %}
-
-  {# STICKY NAVIGATION #}
-  {% if theme_sticky_navigation %}
-  <script type="text/javascript">
-      jQuery(function () {
-          SphinxRtdTheme.StickyNav.enable();
-      });
-  </script>
-  {% endif %}
-
-  {%- block footer %} {% endblock %}
-
-</body>
-</html>

_themes/sphinx_rtd_theme/layout_old.html

@@ -1,205 +0,0 @@
-{#
-    basic/layout.html
-    ~~~~~~~~~~~~~~~~~
-
-    Master layout template for Sphinx themes.
-
-    :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
-    :license: BSD, see LICENSE for details.
-#}
-{%- block doctype -%}
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
-  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-{%- endblock %}
-{%- set reldelim1 = reldelim1 is not defined and ' &raquo;' or reldelim1 %}
-{%- set reldelim2 = reldelim2 is not defined and ' |' or reldelim2 %}
-{%- set render_sidebar = (not embedded) and (not theme_nosidebar|tobool) and
-                         (sidebars != []) %}
-{%- set url_root = pathto('', 1) %}
-{# XXX necessary? #}
-{%- if url_root == '#' %}{% set url_root = '' %}{% endif %}
-{%- if not embedded and docstitle %}
-  {%- set titlesuffix = " &mdash; "|safe + docstitle|e %}
-{%- else %}
-  {%- set titlesuffix = "" %}
-{%- endif %}
-
-{%- macro relbar() %}
-    <div class="related">
-      <h3>{{ _('Navigation') }}</h3>
-      <ul>
-        {%- for rellink in rellinks %}
-        <li class="right" {% if loop.first %}style="margin-right: 10px"{% endif %}>
-          <a href="{{ pathto(rellink[0]) }}" title="{{ rellink[1]|striptags|e }}"
-             {{ accesskey(rellink[2]) }}>{{ rellink[3] }}</a>
-          {%- if not loop.first %}{{ reldelim2 }}{% endif %}</li>
-        {%- endfor %}
-        {%- block rootrellink %}
-        <li><a href="{{ pathto(master_doc) }}">{{ shorttitle|e }}</a>{{ reldelim1 }}</li>
-        {%- endblock %}
-        {%- for parent in parents %}
-          <li><a href="{{ parent.link|e }}" {% if loop.last %}{{ accesskey("U") }}{% endif %}>{{ parent.title }}</a>{{ reldelim1 }}</li>
-        {%- endfor %}
-        {%- block relbaritems %} {% endblock %}
-      </ul>
-    </div>
-{%- endmacro %}
-
-{%- macro sidebar() %}
-      {%- if render_sidebar %}
-      <div class="sphinxsidebar">
-        <div class="sphinxsidebarwrapper">
-          {%- block sidebarlogo %}
-          {%- if logo %}
-            <p class="logo"><a href="{{ pathto(master_doc) }}">
-              <img class="logo" src="{{ pathto('_static/' + logo, 1) }}" alt="Logo"/>
-            </a></p>
-          {%- endif %}
-          {%- endblock %}
-          {%- if sidebars != None %}
-            {#- new style sidebar: explicitly include/exclude templates #}
-            {%- for sidebartemplate in sidebars %}
-            {%- include sidebartemplate %}
-            {%- endfor %}
-          {%- else %}
-            {#- old style sidebars: using blocks -- should be deprecated #}
-            {%- block sidebartoc %}
-            {%- include "localtoc.html" %}
-            {%- endblock %}
-            {%- block sidebarrel %}
-            {%- include "relations.html" %}
-            {%- endblock %}
-            {%- block sidebarsourcelink %}
-            {%- include "sourcelink.html" %}
-            {%- endblock %}
-            {%- if customsidebar %}
-            {%- include customsidebar %}
-            {%- endif %}
-            {%- block sidebarsearch %}
-            {%- include "searchbox.html" %}
-            {%- endblock %}
-          {%- endif %}
-        </div>
-      </div>
-      {%- endif %}
-{%- endmacro %}
-
-{%- macro script() %}
-    <script type="text/javascript">
-      var DOCUMENTATION_OPTIONS = {
-        URL_ROOT:    '{{ url_root }}',
-        VERSION:     '{{ release|e }}',
-        COLLAPSE_INDEX: false,
-        FILE_SUFFIX: '{{ '' if no_search_suffix else file_suffix }}',
-        HAS_SOURCE:  {{ has_source|lower }}
-      };
-    </script>
-    {%- for scriptfile in script_files %}
-    <script type="text/javascript" src="{{ pathto(scriptfile, 1) }}"></script>
-    {%- endfor %}
-{%- endmacro %}
-
-{%- macro css() %}
-    <link rel="stylesheet" href="{{ pathto('_static/' + style, 1) }}" type="text/css" />
-    <link rel="stylesheet" href="{{ pathto('_static/pygments.css', 1) }}" type="text/css" />
-    {%- for cssfile in css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-    {%- endfor %}
-{%- endmacro %}
-
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <meta http-equiv="Content-Type" content="text/html; charset={{ encoding }}" />
-    {{ metatags }}
-    {%- block htmltitle %}
-    <title>{{ title|striptags|e }}{{ titlesuffix }}</title>
-    {%- endblock %}
-    {{ css() }}
-    {%- if not embedded %}
-    {{ script() }}
-    {%- if use_opensearch %}
-    <link rel="search" type="application/opensearchdescription+xml"
-          title="{% trans docstitle=docstitle|e %}Search within {{ docstitle }}{% endtrans %}"
-          href="{{ pathto('_static/opensearch.xml', 1) }}"/>
-    {%- endif %}
-    {%- if favicon %}
-    <link rel="shortcut icon" href="{{ pathto('_static/' + favicon, 1) }}"/>
-    {%- endif %}
-    {%- endif %}
-{%- block linktags %}
-    {%- if hasdoc('about') %}
-    <link rel="author" title="{{ _('About these documents') }}" href="{{ pathto('about') }}" />
-    {%- endif %}
-    {%- if hasdoc('genindex') %}
-    <link rel="index" title="{{ _('Index') }}" href="{{ pathto('genindex') }}" />
-    {%- endif %}
-    {%- if hasdoc('search') %}
-    <link rel="search" title="{{ _('Search') }}" href="{{ pathto('search') }}" />
-    {%- endif %}
-    {%- if hasdoc('copyright') %}
-    <link rel="copyright" title="{{ _('Copyright') }}" href="{{ pathto('copyright') }}" />
-    {%- endif %}
-    <link rel="top" title="{{ docstitle|e }}" href="{{ pathto('index') }}" />
-    {%- if parents %}
-    <link rel="up" title="{{ parents[-1].title|striptags|e }}" href="{{ parents[-1].link|e }}" />
-    {%- endif %}
-    {%- if next %}
-    <link rel="next" title="{{ next.title|striptags|e }}" href="{{ next.link|e }}" />
-    {%- endif %}
-    {%- if prev %}
-    <link rel="prev" title="{{ prev.title|striptags|e }}" href="{{ prev.link|e }}" />
-    {%- endif %}
-{%- endblock %}
-{%- block extrahead %} {% endblock %}
-  </head>
-  <body>
-{%- block header %}{% endblock %}
-
-{%- block relbar1 %}{{ relbar() }}{% endblock %}
-
-{%- block content %}
-  {%- block sidebar1 %} {# possible location for sidebar #} {% endblock %}
-
-    <div class="document">
-  {%- block document %}
-      <div class="documentwrapper">
-      {%- if render_sidebar %}
-        <div class="bodywrapper">
-      {%- endif %}
-          <div class="body">
-            {% block body %} {% endblock %}
-          </div>
-      {%- if render_sidebar %}
-        </div>
-      {%- endif %}
-      </div>
-  {%- endblock %}
-
-  {%- block sidebar2 %}{{ sidebar() }}{% endblock %}
-      <div class="clearer"></div>
-    </div>
-{%- endblock %}
-
-{%- block relbar2 %}{{ relbar() }}{% endblock %}
-
-{%- block footer %}
-    <div class="footer">
-    {%- if show_copyright %}
-      {%- if hasdoc('copyright') %}
-        {% trans path=pathto('copyright'), copyright=copyright|e %}&copy; <a href="{{ path }}">Copyright</a> {{ copyright }}.{% endtrans %}
-      {%- else %}
-        {% trans copyright=copyright|e %}&copy; Copyright {{ copyright }}.{% endtrans %}
-      {%- endif %}
-    {%- endif %}
-    {%- if last_updated %}
-      {% trans last_updated=last_updated|e %}Last updated on {{ last_updated }}.{% endtrans %}
-    {%- endif %}
-    {%- if show_sphinx %}
-      {% trans sphinx_version=sphinx_version|e %}Created using <a href="http://sphinx-doc.org/">Sphinx</a> {{ sphinx_version }}.{% endtrans %}
-    {%- endif %}
-    </div>
-    <p>asdf asdf asdf asdf 22</p>
-{%- endblock %}
-  </body>
-</html>
-

_themes/sphinx_rtd_theme/search.html

@@ -1,50 +0,0 @@
-{#
-    basic/search.html
-    ~~~~~~~~~~~~~~~~~
-
-    Template for the search page.
-
-    :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
-    :license: BSD, see LICENSE for details.
-#}
-{%- extends "layout.html" %}
-{% set title = _('Search') %}
-{% set script_files = script_files + ['_static/searchtools.js'] %}
-{% block footer %}
-  <script type="text/javascript">
-    jQuery(function() { Search.loadIndex("{{ pathto('searchindex.js', 1) }}"); });
-  </script>
-  {# this is used when loading the search index using $.ajax fails,
-     such as on Chrome for documents on localhost #}
-  <script type="text/javascript" id="searchindexloader"></script>
-  {{ super() }}
-{% endblock %}
-{% block body %}
-  <noscript>
-  <div id="fallback" class="admonition warning">
-    <p class="last">
-      {% trans %}Please activate JavaScript to enable the search
-      functionality.{% endtrans %}
-    </p>
-  </div>
-  </noscript>
-
-  {% if search_performed %}
-    <h2>{{ _('Search Results') }}</h2>
-    {% if not search_results %}
-      <p>{{ _('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.') }}</p>
-    {% endif %}
-  {% endif %}
-  <div id="search-results">
-  {% if search_results %}
-    <ul>
-    {% for href, caption, context in search_results %}
-      <li>
-        <a href="{{ pathto(item.href) }}">{{ caption }}</a>
-        <p class="context">{{ context|e }}</p>
-      </li>
-    {% endfor %}
-    </ul>
-  {% endif %}
-  </div>
-{% endblock %}

_themes/sphinx_rtd_theme/searchbox.html

@@ -1,9 +0,0 @@
-{%- if builder != 'singlehtml' %}
-<div role="search">
-  <form id="rtd-search-form" class="wy-form" action="{{ pathto('search') }}" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
-    <input type="hidden" name="check_keywords" value="yes" />
-    <input type="hidden" name="area" value="default" />
-  </form>
-</div>
-{%- endif %}

_themes/sphinx_rtd_theme/static/css/badge_only.css

@@ -1,226 +0,0 @@
-@charset "UTF-8";
-.fa:before {
-  -webkit-font-smoothing: antialiased;
-}
-
-.clearfix {
-  *zoom: 1;
-}
-.clearfix:before, .clearfix:after {
-  display: table;
-  content: "";
-}
-.clearfix:after {
-  clear: both;
-}
-
-@font-face {
-  font-family: FontAwesome;
-  font-weight: normal;
-  font-style: normal;
-  src: url("../font/fontawesome_webfont.eot");
-  src: url("../font/fontawesome_webfont.eot?#iefix") format("embedded-opentype"), url("../font/fontawesome_webfont.woff") format("woff"), url("../font/fontawesome_webfont.ttf") format("truetype"), url("../font/fontawesome_webfont.svg#FontAwesome") format("svg");
-}
-.fa:before {
-  display: inline-block;
-  font-family: FontAwesome;
-  font-style: normal;
-  font-weight: normal;
-  line-height: 1;
-  text-decoration: inherit;
-}
-
-a .fa {
-  display: inline-block;
-  text-decoration: inherit;
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