Update WHATSNEW with release date.

DATE or DATETIME.  Update docs.

COPYRIGHT

@@ -3,7 +3,7 @@ THE REMIND COPYRIGHT
 1. REMIND refers to the entire set of files and documentation in the
 REMIND package.
 
-2. REMIND is Copyright 1999-2008 Roaring Penguin Software Inc.,
+2. REMIND is Copyright 1999-2010 Roaring Penguin Software Inc.,
 except where noted in individual files.
 
 3. DISTRIBUTION AND USE

MICROSOFT-AND-APPLE

@@ -0,0 +1,30 @@
+MICROSOFT WINDOWS
+=================
+
+I used to prohibit porting Remind to Microsoft Windows.  However, this
+may cause problems with the GPL, so I have removed that restriction.
+
+Although I cannot prevent you from porting Remind to Windows, I appeal
+to you not to do it.  I am trying to encourage the growth of free
+software, not proprietary software.
+
+If you port Remind to Windows, I will not provide support or answers to
+questions -- you're on your own.  On the other hand, I will feel no guilt
+in taking enhancements and merging them into the UNIX stream.
+
+APPLE
+=====
+
+I can't prevent you from using Remind on Apple's products, but I hope
+you don't.  Apple's corporate culture is the very antithesis of Free
+Software.  Rather than using Mac OS X, I encourage you to switch to
+Linux or FreeBSD, two Free Software operating systems that are every
+bit as capable as Mac OS X and which are unencumbered by Apple's
+arbitrary restrictions.
+
+And if you're looking to port Remind to other Apple products like the
+iPhone or iPad, please don't.  Those products enforce Apple's rigorous
+controls much more stringently than Mac OS X on an Apple PC.
+
+--
+David F. Skoll

Makefile

@@ -25,7 +25,7 @@ clean:
 	cd src; $(MAKE) clean
 
 test:
-	cd src && $(MAKE) test
+	@cd src && $(MAKE) test
 
 distclean: clean
 	rm -f config.cache config.log config.status src/Makefile src/config.h tests/test.out www/Makefile

WINDOWS

@@ -1,15 +0,0 @@
-MICROSOFT WINDOWS
-
-I used to prohibit porting Remind to Microsoft Windows.  However, this
-may cause problems with the GPL, so I have removed that restriction.
-
-Although I cannot prevent you from porting Remind to Windows, I appeal
-to you not to do it.  I am trying to encourage the growth of free
-software, not proprietary software.
-
-If you port Remind to Windows, I will not provide support or answers to
-questions -- you're on your own.  On the other hand, I will feel no guilt
-in taking enhancements and merging them into the UNIX stream.
-
---
-David F. Skoll.

configure

@@ -1691,6 +1691,36 @@ EOF
 ac_config_headers="$ac_config_headers src/config.h"
 
 
+if test "`uname -s`" = "Darwin" ; then
+   trap 'echo Be patient...' INT TERM
+   cat <<'EOF'
+
+Please don't use Apple products.  This script will continue in 30 seconds
+if you insist on compiling Remind on Mac OS X.
+
+EOF
+    for i in 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 ; do
+        sleep 1
+    done
+    trap - INT
+    trap - TERM
+fi
+
+if uname -s | grep -i -q 'cygwin' ; then
+   trap 'echo Be patient...' INT TERM
+   cat <<'EOF'
+
+Please don't use Microsoft products.  This script will continue in 30
+seconds if you insist on compiling Remind on Cygwin.
+
+EOF
+    for i in 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 ; do
+        sleep 1
+    done
+    trap - INT
+    trap - TERM
+fi
+
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -5284,7 +5314,7 @@ _ACEOF
 fi
 done
 
-VERSION=03.01.07
+VERSION=03.01.09
 
 ac_config_files="$ac_config_files src/Makefile www/Makefile src/version.h"
 

configure.in

@@ -14,6 +14,36 @@ EOF
 
 AC_CONFIG_HEADER(src/config.h)
 
+if test "`uname -s`" = "Darwin" ; then
+   trap 'echo Be patient...' INT TERM
+   cat <<'EOF'
+
+Please don't use Apple products.  This script will continue in 30 seconds
+if you insist on compiling Remind on Mac OS X.
+
+EOF
+    for i in 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 ; do
+        sleep 1
+    done
+    trap - INT
+    trap - TERM
+fi
+
+if uname -s | grep -i -q 'cygwin' ; then
+   trap 'echo Be patient...' INT TERM
+   cat <<'EOF'
+
+Please don't use Microsoft products.  This script will continue in 30
+seconds if you insist on compiling Remind on Cygwin.
+
+EOF
+    for i in 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 ; do
+        sleep 1
+    done
+    trap - INT
+    trap - TERM
+fi
+
 dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_INSTALL
@@ -45,6 +75,6 @@ if test "$GCC" = yes; then
 fi
 
 AC_CHECK_FUNCS(setenv unsetenv glob)
-VERSION=03.01.07
+VERSION=03.01.09
 AC_SUBST(VERSION)
 AC_OUTPUT(src/Makefile www/Makefile src/version.h)

contrib/README

@@ -0,0 +1,10 @@
+This directory contains contributed scripts.  They are provided
+"as-is" with no warranty.  Please do not contact David Skoll
+or Roaring Penguin Software Inc. for help with these scripts;
+instead, contact the script authors.
+
+You should check the upstream sources; there may be newer versions
+of these scripts available.
+
+--
+David F. Skoll

contrib/ical2rem.pl

@@ -0,0 +1,279 @@
+#!/usr/bin/perl -w
+#
+# ical2rem.pl - 
+# Reads iCal files and outputs remind-compatible files.   Tested ONLY with
+#   calendar files created by Mozilla Calendar/Sunbird. Use at your own risk.
+# Copyright (c) 2005, 2007, Justin B. Alcorn
+
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+#
+# version 0.5.2 2007-03-23
+# 	- BUG: leadtime for recurring events had a max of 4 instead of DEFAULT_LEAD_TIME
+#	- remove project-lead-time, since Category was a non-standard attribute
+#	- NOTE: There is a bug in iCal::Parser v1.14 that causes multiple calendars to
+#		fail if a calendar with recurring events is followed by a calendar with no
+#		recurring events.  This has been reported to the iCal::Parser author.
+# version 0.5.1 2007-03-21
+#	- BUG: Handle multiple calendars on STDIN
+#	- add --heading option for priority on section headers
+# version 0.5 2007-03-21
+#	- Add more help options
+#	- --project-lead-time option
+#	- Supress printing of heading if there are no todos to print
+# version 0.4
+#	- Version 0.4 changes all written or inspired by, and thanks to Mark Stosberg
+#	- Change to GetOptions
+#	- Change to pipe
+#	- Add --label, --help options
+#	- Add Help Text
+#	- Change to subroutines
+#	- Efficiency and Cleanup
+# version 0.3
+#	- Convert to GPL (Thanks to Mark Stosberg)
+#	- Add usage
+# version 0.2
+#	- add command line switches
+#	- add debug code
+#	- add SCHED _sfun keyword
+#	- fix typos
+# version 0.1 - ALPHA CODE.  
+
+=head1 SYNOPSIS
+
+ cat /path/to/file*.ics | ical2rem.pl > ~/.ical2rem
+
+ All options have reasonable defaults:
+ --label		       Calendar name (Default: Calendar)
+ --lead-time	       Advance days to start reminders (Default: 3)
+ --todos, --no-todos   Process Todos? (Default: Yes)
+ --heading			   Define a priority for static entries
+ --help				   Usage
+ --man				   Complete man page
+
+Expects an ICAL stream on STDIN. Converts it to the format
+used by the C<remind> script and prints it to STDOUT. 
+
+=head2 --label
+
+  ical2rem.pl --label "Bob's Calendar"
+
+The syntax generated includes a label for the calendar parsed.
+By default this is "Calendar". You can customize this with 
+the "--label" option.
+
+=head2 --lead-time 
+
+  ical2rem.pl --lead-time 3
+ 
+How may days in advance to start getting reminders about the events. Defaults to 3. 
+
+=head2 --no-todos
+
+  ical2rem.pl --no-todos
+
+If you don't care about the ToDos the calendar, this will surpress
+printing of the ToDo heading, as well as skipping ToDo processing. 
+
+=head2 --heading
+
+  ical2rem.pl --heading "PRIORITY 9999"
+
+Set an option on static messages output.  Using priorities can made the static messages look different from
+the calendar entries.  See the file defs.rem from the remind distribution for more information.
+
+=cut 
+
+use strict;
+use iCal::Parser;
+use DateTime;
+use Getopt::Long 2.24 qw':config auto_help';
+use Pod::Usage;
+use Data::Dumper;
+use vars '$VERSION';
+$VERSION = "0.5.2";
+
+# Declare how many days in advance to remind
+my $DEFAULT_LEAD_TIME = 3;
+my $PROCESS_TODOS     = 1;
+my $HEADING			  = "";
+my $help;
+my $man;
+
+my $label = 'Calendar';
+GetOptions (
+	"label=s"     => \$label,
+	"lead-time=i" => \$DEFAULT_LEAD_TIME,
+	"todos!"	  => \$PROCESS_TODOS,
+	"heading=s"	  => \$HEADING,
+	"help|?" 	  => \$help, 
+	"man" 	 	  => \$man
+);
+pod2usage(1) if $help;
+pod2usage(-verbose => 2) if $man;
+
+my $month = ['None','Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'];
+
+my @calendars;
+my $in;
+
+while (<>) {
+	$in .= $_;
+	if (/END:VCALENDAR/) {
+		push(@calendars,$in);
+		$in = "";
+	}
+}
+my $parser = iCal::Parser->new();
+my $hash = $parser->parse_strings(@calendars);
+
+##############################################################
+#
+# Subroutines 
+#
+#############################################################
+#
+# _process_todos()
+# expects 'todos' hashref from iCal::Parser is input
+# returns String to output
+sub _process_todos {
+	my $todos = shift; 
+	
+	my ($todo, @newtodos, $leadtime);
+	my $output = "";
+
+	$output .=  'REM '.$HEADING.' MSG '.$label.' ToDos:%"%"%'."\n";
+
+# For sorting, make sure everything's got something
+#   To sort on.  
+	my $now = DateTime->now;
+	for $todo (@{$todos}) {
+		# remove completed items
+		if ($todo->{'STATUS'} && $todo->{'STATUS'} eq 'COMPLETED') {
+			next;
+		} elsif ($todo->{'DUE'}) {
+			# All we need is a due date, everything else is sugar
+			$todo->{'SORT'} = $todo->{'DUE'}->clone;
+		} elsif ($todo->{'DTSTART'}) {
+			# for sorting, sort on start date if there's no due date
+			$todo->{'SORT'} = $todo->{'DTSTART'}->clone;
+		} else {
+			# if there's no due or start date, just make it now.
+			$todo->{'SORT'} = $now;
+		}
+		push(@newtodos,$todo);
+	}
+	if (! (scalar @newtodos)) {
+		return "";
+	}
+# Now sort on the new Due dates and print them out.  
+	for $todo (sort { DateTime->compare($a->{'SORT'}, $b->{'SORT'}) } @newtodos) {
+		my $due = $todo->{'SORT'}->clone();
+		my $priority = "";
+		if (defined($todo->{'PRIORITY'})) {
+			if ($todo->{'PRIORITY'} == 1) {
+				$priority = "PRIORITY 1000";
+			} elsif ($todo->{'PRIORITY'} == 3) {
+				$priority = "PRIORITY 7500";
+			}
+		}
+		if (defined($todo->{'DTSTART'}) && defined($todo->{'DUE'})) {
+			# Lead time is duration of task + lead time
+			my $diff = ($todo->{'DUE'}->delta_days($todo->{'DTSTART'})->days())+$DEFAULT_LEAD_TIME;
+			$leadtime = "+".$diff;
+		} else {
+			$leadtime = "+".$DEFAULT_LEAD_TIME;
+		}
+		$output .=  "REM ".$due->month_abbr." ".$due->day." ".$due->year." $leadtime $priority MSG \%a $todo->{'SUMMARY'}\%\"\%\"\%\n";
+	}
+	$output .= 'REM '.$HEADING.' MSG %"%"%'."\n";
+	return $output;
+}
+
+
+#######################################################################
+#
+#  Main Program
+#
+######################################################################
+
+print _process_todos($hash->{'todos'}) if $PROCESS_TODOS;
+
+my ($leadtime, $yearkey, $monkey, $daykey,$uid,%eventsbyuid);
+print 'REM '.$HEADING.' MSG '.$label.' Events:%"%"%'."\n";
+my $events = $hash->{'events'};
+foreach $yearkey (sort keys %{$events} ) {
+    my $yearevents = $events->{$yearkey};
+    foreach $monkey (sort {$a <=> $b} keys %{$yearevents}){
+        my $monevents = $yearevents->{$monkey};
+        foreach $daykey (sort {$a <=> $b} keys %{$monevents} ) {
+            my $dayevents = $monevents->{$daykey};
+            foreach $uid (sort {
+                            DateTime->compare($dayevents->{$a}->{'DTSTART'}, $dayevents->{$b}->{'DTSTART'})    
+                            } keys %{$dayevents}) {
+                my $event = $dayevents->{$uid};
+               if ($eventsbyuid{$uid}) {
+                    my $curreventday = $event->{'DTSTART'}->clone;
+                    $curreventday->truncate( to => 'day' );
+                    $eventsbyuid{$uid}{$curreventday->epoch()} =1;
+                    for (my $i = 0;$i < $DEFAULT_LEAD_TIME && !defined($event->{'LEADTIME'});$i++) {
+                        if ($eventsbyuid{$uid}{$curreventday->subtract( days => $i+1 )->epoch() }) {
+                            $event->{'LEADTIME'} = $i;
+                        }
+                    }
+                } else {
+                    $eventsbyuid{$uid} = $event;
+                    my $curreventday = $event->{'DTSTART'}->clone;
+                    $curreventday->truncate( to => 'day' );
+                    $eventsbyuid{$uid}{$curreventday->epoch()} =1;
+                }
+
+            }
+        }
+    }
+}
+foreach $yearkey (sort keys %{$events} ) {
+    my $yearevents = $events->{$yearkey};
+    foreach $monkey (sort {$a <=> $b} keys %{$yearevents}){
+        my $monevents = $yearevents->{$monkey};
+        foreach $daykey (sort {$a <=> $b} keys %{$monevents} ) {
+            my $dayevents = $monevents->{$daykey};
+            foreach $uid (sort {
+                            DateTime->compare($dayevents->{$a}->{'DTSTART'}, $dayevents->{$b}->{'DTSTART'})
+                            } keys %{$dayevents}) {
+                my $event = $dayevents->{$uid};
+                if (exists($event->{'LEADTIME'})) {
+                    $leadtime = "+".$event->{'LEADTIME'};
+                } else {
+                    $leadtime = "+".$DEFAULT_LEAD_TIME;
+                }
+                my $start = $event->{'DTSTART'};
+                print "REM ".$start->month_abbr." ".$start->day." ".$start->year." $leadtime ";
+                if ($start->hour > 0) { 
+                    print " AT ";
+                    print $start->strftime("%H:%M");
+                    print " SCHED _sfun MSG %a %2 ";
+                } else {
+                    print " MSG %a ";
+                }
+                print "%\"$event->{'SUMMARY'}";
+                print " at $event->{'LOCATION'}" if $event->{'LOCATION'};
+                print "\%\"%\n";
+            }
+        }
+    }
+}
+exit 0;
+#:vim set ft=perl ts=4 sts=4 expandtab :

contrib/rem2ics-0.93/Makefile

@@ -0,0 +1,13 @@
+DESTDIR?=
+PREFIX?=/usr
+BINDIR?=$(PREFIX)/bin
+MANDIR?=$(PREFIX)/share/man
+
+default: rem2ics.1
+
+rem2ics.1:
+	pod2man -c "" rem2ics > rem2ics.1
+
+install: rem2ics.1
+	install -p -D rem2ics $(DESTDIR)$(BINDIR)/rem2ics
+	install -p -D -m 0644 rem2ics.1 $(DESTDIR)$(MANDIR)/man1/rem2ics.1

contrib/rem2ics-0.93/rem2ics

@@ -0,0 +1,847 @@
+#!/usr/bin/perl -w
+
+# rem2ics -- convert the output of "remind -s" into RFC2445 iCalendar format.
+
+# Copyright 2007,2008,2009
+#  Mark Atwood <me@mark.atwood.name>
+#  Paul Hinze <paul dot t dot hinze at gmail dot com>
+#  Michael Schultz <mjschultz at gmail dot com>
+# 
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the
+#   Free Software Foundation, Inc.
+#   51 Franklin Street, Fifth Floor
+#   Boston MA  02110-1301 USA
+
+use strict;
+use warnings;
+
+=head1 NAME
+
+rem2ics - convert the output of "remind -s" into RFC2445 iCalendar format.
+
+=head1 SYNOPSIS
+
+TZ=I<timezone> B<rem2ics> [B<-man>] [B<-do>] [B<-norecur>] [B<-usetag>] E<lt>input E<gt>output
+
+=head1 OPTIONS AND ARGUMENTS
+
+=over 8
+
+=item B<-man>
+
+Print the manual page and exit.
+
+=item B<-do>
+
+Actually do the conversion.  Otherwise just print a brief help message
+and usage example, and then exit.
+
+=item B<-norecur>
+
+Do not attempt to detect and fold together recurring events.
+
+=item B<-usetag>
+
+Generate UIDs using remind TAG clauses.
+
+=back
+
+Input is from standard input
+
+Output is to standard output.
+
+=head1 USAGE
+
+  remind -s360 -irem2ics=1 ~/.reminders 1 Jan 1991 | TZ=PST8PDT rem2ics -do >reminders.ics
+
+This tells B<remind> to use ~/.reminders, and to process the entire
+range of dates it can handle (from Jan 1 1991 to Dec 31 2020), and to
+define a variable named C<rem2ics>, which can be used in
+C<IF !defined("rem2ics")> / C<ENDIF> pairs.
+B<rem2ics> will use a timezone of PST8PDT, and will fold events that
+have the same name and duration into a single iCalendar VEVENT object.
+
+=head1 NOTES
+
+=head2 Timezones and the TZ environment variable.
+
+B<rem2ics> uses the TZ environment variable to determine the value of
+the RFC2445 TZID property.  If you are running on a Linux or other GNU
+libc based system, you probably don't (and probably shouldn't)
+normally have TZ set.  You can confirm this by running C<printenv TZ>
+at a shell prompt.  If your remind data is in your "local time", and
+it probably is, you should probably set TZ to a good name for your
+local timezone just for the run of this script.  You probably should
+NOT set TZ in your login scripts.
+
+You can use TZ like this:
+
+  remind -s ~/.reminders | TZ=PST8PDT rem2ics -do >reminders.ics
+
+or
+
+  remind -s ~/.reminders | TZ=US/Pacific rem2ics -do >reminders.ics
+
+
+If, for some reason, your remind files are all in GMT instead of
+localtime (you smart person you!), you can do this:
+
+  remind -s ~/.reminders | TZ=GMT rem2ics -do >reminders.ics
+
+or
+
+  remind -s ~/.reminders | TZ=0 rem2ics -do >reminders.ics
+
+and B<rem2ics> will use the ISO8601 "Z" notation for GMT time in the ics
+file.  (Other synonyms for GMT are the empty string (not the same as
+the TZ not set), "I<0>", "I<Z>", "I<Zulu>", "I<Greenwitch>", "I<GMT>",
+"I<GMT+0>, and "I<GMT-0>".)
+
+If you leave TZ undefined and unset, B<rem2ics> will use the ISO8601
+"T" notation date strings with no TZID property, which RFC2445 calls a
+"floating time".  Who knows, it might work for you!
+
+The TZ string value is literally incorporated into the iCalendar
+stream, so whatever your iCalendar-using application needs is what you
+should use.  You may have to experiment a bit.
+
+You can look around in C</usr/share/zoneinfo> to get the names of
+every timezone anywhere.  This is the "Olson database" that RFC2445
+refers to.  Read the man page for L<tzfile(5)> for more than you ever
+wanted to know about the format of these files, and about GNU libc's
+handling of timezones.  As complex as it is, it's certainly better
+than what POSIX defines or what most legacy UNIX systems do, and most
+certainly better than Microsoft, who in their "cutting edge" "state of
+the art" "server" OS, still hasn't figured out that daylight time
+rules might be different in different years.
+
+If you just ran B<rem2ics> without reading all this stuff, or if you
+don't want to worry about it at all, and somehow your iCalendar
+application manager is able to guess the proper timezone for you, just
+leave TZ undefined, and B<rem2ics> will use the ISO8601 "T" notation
+date strings with no TZID property, which RFC2445 calls a "floating
+time".  Who knows, it might work for you!
+
+=head2 Detecting recurring events
+
+B<rem2ics> tries to detect recurring events.  If any multiple events
+appear with exactly the text and exactly the same duration (including
+"no duration"), instead of multiple VEVENT objects, there will be just
+one VEVENT object, that will have a RFC2445 C<RDATE> property.
+
+B<rem2ics> is not yet smart enough to derive an C<RRULE> based
+recurrance.  If you really want that feature, either implement it and
+send in a patch, or contact the author and convince him to do it.
+
+=head2 Other iCalendar Properties
+
+B<rem2ics> does not generate C<DESCRIPTION> or C<LOCATION>.  One
+would have to heuristically parse them out of the text, and everyone
+uses a idiosyncratic way of putting things in B<remind>.
+
+If the B<-usetag> option is not used or no C<TAG> is set for a
+reminder, B<rem2ics> will synthesize C<UID> properties for each
+VEVENT, but the UIDs will be different (and unique) for each run of
+B<rem2ics>.  If you run rem2ics twice and import the two resulting ICS
+streams into your new scheduling program, your appointments will
+appear twice.  If, however, you have set C<TAG> clauses in your
+reminders and activated B<-usetag>, these will be used.  The same
+applies for tags synthesized by B<remind>'s B<-y> option.  Hence, it
+is more useful to use the B<-y> option than to let B<rem2ics>
+synthesize UIDs, because the UIDs will stay the same across multiple
+runs.
+
+=head2 Other iCalendar Perl objects
+
+Why does't B<rem2ics> use any of the iCalendar Perl stuff in CPAN?
+Because I don't trust them, and they are too big for this app.  One
+links to a binary library. Another hasn't been maintained since 1991,
+and is full of notes as to how buggy and incomplete it is.  And so
+forth.  I am not at this moment interested in groveling around in
+L<Net::iCal>, L<DateTime::Format::iCal>, L<Tie::iCal>,
+L<iCal::Parser>, or C<libical>.
+
+=head2 Previous implementation
+
+There is a working quick & dirty rem2ics written in awk
+by Anthony J. Chivetta E<lt>achivetta@gmail.comE<gt>.
+
+But it has the following problems: it doesn't escape the text, it
+doesn't handle events that cross over midnight, it doesn't do
+timezones, it doesn't enforce the correct EOL sequence, and it doesn't
+fold long lines.  This is a replacement for that script.
+
+=head1 TODO
+
+ If TZ not set, grab out of system config somewhere
+ Detect recurring events.
+  If I'm REALLY smart, derive RRULE
+ Handle characters not in US-ASCII. Latin1? UTF8?
+
+=head1 VERSION HISTORY
+
+=over 8
+
+=item version 0.1 2007-02-08
+
+First cut.
+
+=item version 0.2 2007-02-09
+
+Reorg into multipass over a data structure.
+
+=item version 0.3 2007-02-10
+
+Collapse repeating events. Fold output lines.
+
+=item version 0.9 2007-02-11
+
+POD. Command line options. First public release.
+
+=item version 0.91 2007-02-14
+
+Bug fix, error message for non-recurring events
+
+=item version 0.92 2008-01-28
+
+Bug fix, 
+ rem2ics 0.91 chokes on timed reminders with
+ duration using `remind -s` as it functions in remind-03.01.03.
+ Remind 3.01 changed how the -s data is formated for events that have a duration
+ Patch by Paul Hinze E<lt>paul dot t dot hinze at gmail dot comE<gt>
+  and Michael Schultz E<lt>mjschultz at gmail dot comE<gt>
+
+=item version 0.93 2009-06-25
+
+Add B<-usetag> option to allow for UIDs to stay the same across multiple runs
+ by using the remind TAG clause.
+ Patch by Tim Weber E<lt>scy at scytale dot nameE<gt>
+
+=back
+
+=head1 SEE ALSO
+
+L<http://mark.atwood.name/code/rem2ics>
+
+L<http://en.wikipedia.org/wiki/ICalendar>
+
+L<http://tools.ietf.org/html/rfc2445>
+
+L<http://www.roaringpenguin.com/en/penguin/openSourceProducts/remind>
+
+L<remind(1)>
+
+=head1 AUTHOR
+
+Copyright 2007,2008,2009 by Mark Atwood E<lt>me+rem2ics@mark.atwood.nameE<gt>. L<http://mark.atwood.name/>.
+
+Please report bugs (with patches, if possible).
+
+Inspired by Anthony J. Chivetta E<lt>achivetta@gmail.comE<gt>'s
+rem2ics in awk.
+
+Thank you to David Skoll E<lt>dfs@roaringpengiun.com<gt> for Remind,
+and to the IETF calsch wg for the iCalendar specification.
+
+=cut
+
+use Getopt::Long;
+use Pod::Usage;
+
+my $app_name = "rem2ics";
+my $app_version = "0.93";
+
+# process the command line
+my %options;
+GetOptions(\%options, qw(man do norecurr usetag))  ||  pod2usage(2);
+pod2usage(-verbose => 2)  if ($options{man});
+
+unless ($options{do}) {
+    print STDERR "Run \"$0 -man\" for information and usage examples.\n"
+	. "Pay special attention to information about timezone.\n";
+    exit(99);
+}
+
+# grab the hostname
+# this is used as part of the UID property of each VEVENT
+my $ical_uid_hostname = $ENV{'HOSTNAME'};
+unless ($ical_uid_hostname) {
+    print STDERR "Warning! "
+	. "The environment variable HOSTNAME was not properly set.\n"
+	. "Will use \"localhost\" in the RFC2445 UID property\n";
+    $ical_uid_hostname = "localhost";
+}
+
+# look for the TZ
+my $ical_tzid = undef;
+if (exists $ENV{'TZ'}) {
+    $ical_tzid = $ENV{'TZ'};
+    my %synonyms_for_gmt = (
+	'' => 1, '0' => 1, 'z' => 1, 'zulu' => 1, 'greenwitch' => 1, 
+	'gmt' => 1, 'gmt+0' => 1, 'gmt-0' => 1, );
+    if (exists $synonyms_for_gmt{lc($ical_tzid)}) {
+	$ical_tzid = '';  # empty means GMT, below
+    }
+} else {
+    # leave it undefined, that has a meaning below
+}
+
+# RFC2445 DTSTAMP property will be the time we started running ($^T)
+my ($ical_dtstamp);
+{
+    my @gt = gmtime($^T);
+    $ical_dtstamp = sprintf("%04d%02d%02dZ%02d%02d%02dZ",
+			    1900+$gt[5], $gt[4]+1, $gt[3],
+			    $gt[2], $gt[1], $gt[0]);
+}
+
+my ($cnt, $v, @events);
+
+$cnt = 0;
+foreach (<STDIN>) {
+    $cnt++;
+
+    s/#.*//;  # toss comments
+    next if /^\s*$/;  # skip blank lines
+    chomp;
+
+    $v = undef;
+
+    # store the raw line
+    $v->{src} = $_;
+    $v->{cnt} = $cnt;
+
+    # split and parse the line
+    #  if we don't like it, skip it and go around again
+    
+    # sf[0] = date, in yyyy/mm/dd format
+    # sf[1] = special, usually "*"
+    # sf[2] = tag, usually "*"
+    # sf[3] = duration, in minutes
+    # sf[4] = time, since midnight, in minutes
+    # sf[5] = text
+
+    my @sf = split(' ', $_, 6);
+    next unless ($sf[1] eq '*');  # ignore SPECIAL lines
+    next unless (($sf[3] eq '*') or ($sf[3] =~ m/\d+/));
+    next unless (($sf[4] eq '*') or ($sf[4] =~ m/\d+/));
+    next unless (length($sf[5]) > 0);
+
+    my @dt = split('/', $sf[0], 3);
+    next unless ($dt[0] =~ m/^\d{4}$/);  # year
+    next unless ($dt[1] =~ m/^\d{2}$/);  # month
+    next unless ($dt[2] =~ m/^\d{2}$/);  # day
+
+    if ($sf[4] ne "*") {  # a time was given
+	# When an event has a time, remind -s "helpfully" also
+	# puts it as text at the start of the text portion.
+	# This takes the following form:
+	#   ##:##[a|p]m <rest of MSG>
+	# or, if the event has a duration:
+	#   ##:##[a|p]m-##:##[a|p]m <rest of MSG>
+	# Rather than a nasty regex, just splitting at the 
+	# first space does the trick.
+	my($extra_time, $textmsg) = split(' ', $sf[5], 2);
+	$sf[5] = $textmsg;
+    }
+
+    $v->{sf} = \@sf;
+    $v->{dt} = \@dt;
+
+    push @events, $v;
+}
+
+# generate the "date time string" for each event
+foreach $v (@events) {
+    if (${$v->{sf}}[4] eq "*") {  # no time was given
+	$v->{dts} = sprintf("%04d%02d%02d", @{$v->{dt}});
+    } else { # a time was given
+	my ($t_hr, $t_mn) = &idiv(${$v->{sf}}[4], 60);
+	$v->{dts} = sprintf("%04d%02d%02dT%02d%02d00",
+				@{$v->{dt}}, $t_hr, $t_mn);
+
+    }
+}
+
+my(%grovel);
+
+# if the user doesnt want recurrance detection
+unless ($options{norecurr}) {
+
+    # then dont put events in the grovel hash
+
+    foreach $v (@events) {
+	# key is duration followed by text
+	#  \036 is "ASCII RS Record Separator"
+	my $k = ${$v->{sf}}[3] . "\036" . ${$v->{sf}}[5];
+	push @{$grovel{$k}}, $v;
+    }
+
+    foreach my $k (keys %grovel) {
+	if ((scalar @{$grovel{$k}}) > 1) {
+	    $v = ${$grovel{$k}}[0];
+	    $v->{recurlist} = \@{$grovel{$k}};
+	    foreach my $v0 (@{$grovel{$k}}) {
+		$v0->{is_recurrance} = $v;
+	    }
+	}
+    }
+}
+
+
+# All of the individual events are in the @events array.  All of the
+# unique combinations of duration/event name are the keys in the
+# %grovel hash, the elements of which are references to an arrays of
+# references to the events, in the same ordering as they we read by
+# us, which *ought* to be in datewise order.  I don't know if "remind
+# -s" actually sorts into true chronological order.  If it doesn't, we
+# might have a problem if a recurring event has two instances both on
+# the first day.
+
+# Every event that is recurring has a "is_recurrance" property.
+# Additionally, (hopefully) the first/earliest event in a set of
+# recurrances has a "recurlist" property.  The "recurlist" is a
+# reference to a list of references to each of the events.  The first
+# one on that list will be the same event that has the "recurlist"
+# property.  The "is_recurrance" property is a reference back to the
+# event that has the "recurlist" property.
+
+foreach my $k (keys %grovel) {
+    next if ((scalar @{$grovel{$k}}) <= 1);
+
+    my $recur_str = "";
+    foreach $v (@{$grovel{$k}}) {
+	if (${$v->{sf}}[4] eq "*") {  # no time was given
+	    $recur_str .= ($v->{dts} . ",");
+	} else {
+	    if (defined($ical_tzid)) {
+		if ($ical_tzid eq '') {  # tz is defined but empty, so in GMT
+		    $recur_str .= $v->{dts} . "Z,";
+		} else {  # tz is non-zero, so output the tz as well
+		    $recur_str .= $v->{dts} . ",";
+		}
+	    } else {  # undefined tz, just floating time
+		$recur_str .= $v->{dts} . ",";
+	    }
+	}
+    }
+
+    # the recur_str now has an extra comma at the end. chop it off
+    chop($recur_str);
+    ${$grovel{$k}}[0]->{recur_str} = $recur_str;
+}
+
+foreach my $k (keys %grovel) {
+    next if ((scalar @{$grovel{$k}}) <= 1);
+    my $v = ${$grovel{$k}}[0];  # grab the head of each list
+    if (${$v->{sf}}[4] eq "*") {  # no time was given
+	# the default value type for an RDATE is DATE-TIME,
+	# we much change the type to DATE
+	$v->{i_rdate} = sprintf("RDATE;VALUE=DATE:");
+    } else {
+	if (defined($ical_tzid)) {
+	    if ($ical_tzid eq '') {  # tz is defined but empty, so in GMT
+		$v->{i_rdate} = sprintf("RDATE:");
+	    } else {  # tz is non-zero, so output the tz as well
+		$v->{i_rdate} = sprintf("RDATE;TZID=%s:", $ical_tzid);
+	    }
+	} else {  # undefined tz, just floating time
+	    $v->{i_rdate} = sprintf("RDATE:");
+	}
+    }
+    # now stick the recur_str onto the end
+    $v->{i_rdate} .= $v->{recur_str};
+    # if we ever get memory tight, we can probably undef($v->{recur_str})
+}
+
+foreach $v (@events) {
+    # for recurrant events, skip those that arnt the "head"
+    next if ($v->{is_recurrance} and (not $v->{recurlist}));
+
+    if (${$v->{sf}}[4] eq "*") {  # no time was given
+	$v->{i_dtstart} = sprintf("DTSTART:%s", $v->{dts});
+    } else {
+	if (defined($ical_tzid)) {
+	    if ($ical_tzid eq '') {  # tz is defined but empty, so in GMT
+		$v->{i_dtstart} = sprintf("DTSTART:%sZ", $v->{dts});
+	    } else {  # tz is non-zero, so output the tz as well
+		$v->{i_dtstart} = sprintf("DTSTART;TZID=%s:%s",
+					  $ical_tzid, $v->{dts});
+	    }
+	} else {  # undefined tz, just floating time
+	    $v->{i_dtstart} = sprintf("DTSTART:%s", $v->{dts});
+	}
+    }
+
+    if (${$v->{sf}}[3] ne "*") {  # a duration was given
+	# It's convienient that RFC2445 defines DURATION, thus we
+	# don't need to calculate DTEND, with awkward figuring out
+	# crossing hours, days, months, year, etc.  Instead we
+	# will let the iCalendar consuming application worry about it.
+	$v->{i_duration} = sprintf("PT%dM", ${$v->{sf}}[3]);
+    }
+}
+
+# output header
+print "BEGIN:VCALENDAR\015\012"
+    . "VERSION:2.0\015\012"
+    . "PRODID:http://mark.atwood.name/code/rem2ics"
+    . " $app_name $app_version\015\012";
+
+# output each vevent
+foreach $v (@events) {
+    # for recurrant events, only output the "head", skip the others
+    next if ($v->{is_recurrance} and (not $v->{recurlist}));
+
+    print "BEGIN:VEVENT\015\012";
+    my $tag = ${$v->{sf}}[2];
+    # if $tag is not set, fake up a UID from start time, process id & input line count
+    if ($tag eq "*" || !$options{usetag}) {
+        $tag = sprintf("%x.%x.%x", $^T, $$, $v->{cnt});
+    }
+    # add rem2ics and hostname to UID
+    print &lineify(sprintf("UID:rem2ics.%s@%s",
+			   $tag, $ical_uid_hostname));
+    print &lineify("SUMMARY:" . &quotify(${$v->{sf}}[5]));
+    print &lineify($v->{i_dtstart});
+    print &lineify("DURATION:" . $v->{i_duration})
+	if ($v->{i_duration});
+    print &lineify($v->{i_rdate})
+	if ($v->{i_rdate});
+    print &lineify("DTSTAMP:" . $ical_dtstamp);
+    print &lineify("COMMENT: generated by $app_name $app_version\\n"
+		   . " http://mark.atwood.name/code/rem2ics\\n"
+		   . " data[" . $v->{cnt} . "]=|" . &quotify($v->{src}) . "|");
+    print "END:VEVENT\015\012";
+}
+
+# output trailer
+print "END:VCALENDAR\015\012";
+
+
+# integer division, return both quotient and remainder
+sub idiv {
+    my $n = shift; my $d = shift;
+    my $r = $n; my $q = 0;
+    while ($r >= $d) { 
+	$r = $r - $d;
+	$q = $q + 1;
+    }
+    return ($q, $r);
+}
+
+# todo, perl5 version that defines ()*, need to specify a requires up top
+sub lineify {
+    return join("\015\012 ", unpack('(A72)*', shift)) . "\015\012";
+}
+
+sub quotify {
+    my $s = shift;
+    return $s if $s =~ m/^(\w| )*$/;
+
+    $s =~ s/\\/\\\\/gso;
+    $s =~ s/\n/\\n/gso;
+    $s =~ s/\s/ /gso;
+    $s =~ s/\"/\\"/gso;
+    $s =~ s/\,/\\,/gso;
+    $s =~ s/\:/\\:/gso;
+    $s =~ s/\;/\\;/gso;
+
+    return $s;
+}
+
+__END__
+
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
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+  8. If the distribution and/or use of the Program is restricted in
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+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the 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 Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+EOF

contrib/rem2ics-0.93/rem2ics.spec

@@ -0,0 +1,50 @@
+Name:           rem2ics
+Version:        0.93
+Release:        1%{?dist}
+Summary:        Converts the output of "remind -s" into RFC2445 iCalendar format
+
+Group:          Applications/Productivity
+License:        GPLv2+
+URL:            http://mark.atwood.name/code/rem2ics/
+Source0:        http://mark.atwood.name/code/rem2ics/rem2ics-%{version}.tar.gz
+Source1:        rem2ics-Makefile
+BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+
+BuildArch:      noarch
+BuildRequires:  perl
+
+
+%description
+rem2ics converts the output of "remind -s" into RFC2445 iCalendar format.
+You may want to install remind if you install this package.
+
+
+%prep
+%setup -q -c
+cp -a %SOURCE1 Makefile
+
+
+%build
+make  %{?_smp_mflags}
+
+
+%install
+rm -rf $RPM_BUILD_ROOT
+mkdir $RPM_BUILD_ROOT
+make install DESTDIR=$RPM_BUILD_ROOT
+
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+
+%files
+%defattr(-,root,root,-)
+%doc
+%{_bindir}/rem2ics
+%{_mandir}/man1/rem2ics.1*
+
+
+%changelog
+* Tue Mar 25 2008 Till Maas <opensource till name> - 0.92-1
+- initial spec for Fedora

contrib/remind-conf-mode.06/ac-remind.el

@@ -0,0 +1,56 @@
+;;; setup for remind autocompletion (totally optional)
+
+;; put something like 
+;; (add-hook 'remind-conf-mode '(load-library "ac-remind")) in your .emacs file.
+(require 'auto-complete)
+
+(define-key ac-complete-mode-map "\r" nil)
+
+(defvar ac-remind-keywords
+  '((candidates
+     . (lambda ()
+	 (all-completions ac-target remind-keywords ))))
+  "Source for remind-conf completion keywords.")
+
+(defvar ac-remind-time-words
+'((candidates
+   . (lambda ()
+       (all-completions ac-target remind-time-words))))
+"Source for remind-conf time words completions.")
+
+(defvar ac-remind-builtin-variables
+  '((candidates
+	 . (lambda ()
+	     (all-completions ac-target remind-builtin-variables))))
+  "Source for remind-conf builtin variables.")
+
+(defvar ac-remind-type-keywords
+  '((candidates
+     . (lambda ()
+	 (all-completions ac-target remind-type-keywords))))
+  "Source for remind-conf type keywords.")
+
+(defvar ac-remind-builtin-functions
+ '((candidates
+	 . (lambda ()
+	     (all-completions ac-target remind-builtin-functions))))
+ "Source for remind-conf completion builtin functions.")
+	       
+(add-hook 'remind-conf-mode-hook
+	  (lambda () "Makes auto-completion work in remind-conf-mode"
+	    (make-local-variable 'ac-sources)
+	    (setq ac-sources '(ac-remind-keywords
+			       ac-remind-builtin-variables
+			       ac-remind-builtin-functions
+			       ac-remind-type-keywords
+			       ac-remind-time-words
+			       ac-source-abbrev))		
+	    (auto-complete-mode 1)))
+
+(provide 'ac-remind)
+;; (define-skeleton ac-look
+;; ""
+;; (skeleton-read "well? ")
+;; "(when (looking-at (regexp-opt remind-" str " 'words))" \n
+;; >"(setq ac-sources '(ac-remind-" str ")))"
+;; )

contrib/remind-conf-mode.06/remind-conf-mode.el

@@ -0,0 +1,444 @@
+;;; remind-conf-mode.el --- A mode to help configure remind.
+
+;; Copyright (C) 2008  Shelagh Manton <shelagh.manton@gmail.com>
+
+;; Author: Shelagh Manton <shelagh.manton@gmail.com> with help from
+;; David F. Skoll
+;; Keywords: remind configure mode
+;; Version: .04
+
+;; This program is free software; you can redistribute it and/or
+;; modify it under the terms of the GNU General Public License
+;; as published by the Free Software Foundation; either version 2
+;; of the License, or (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; Commentary:
+
+;; Use this mode to help with the configuration of remind configuration files.
+;; Put (require 'remind-conf-mode) in your .emacs file
+;; or (autoload 'remind-conf-mode "remind-conf-mode" "Mode to help with remind files" t)
+;; also put (add-to-list 'auto-mode-alist '("\\.rem\\'" . remind-conf-mode)) and
+;; (setq auto-mode-alist
+;;     (cons '(".reminders$" . remind-conf-mode) auto-mode-alist))
+;; if you want to have the mode work automatically when you open a remind configuration file.
+
+;; If you want to use the auto-complete stuff, you will need to download and install the
+;; auto-complete library from  http://www.cx4a.org/pub/auto-complete.el and put
+;; (require 'auto-complete) in your emacs with
+;; (add-hook 'remind-conf-mode-hook
+;;  (lambda ()
+;;    (make-local-variable 'ac-sources)
+;;    (setq ac-sources '(ac-remind-conf ac-remind-builtin-variables ac-remind-builtin-functions))
+;;    (auto-complete t)))
+;;   in your .emacs file
+
+;;   PS. you could add ac-source-abbrev ac-source-words-in-buffer to have abbrevs and
+;;   other words in buffer auto-complete too
+
+;;; History:
+;; Thu, Feb 14, 2008
+;; Based mode on wpld-mode tutorial and sample-mode on emacs wiki.
+;; Ideas from mupad.el for font-lock styles.
+;; Mon, Jan 26, 2008
+;; Added rem-setup-colors to make it easy for colourised remind output.
+;; Added a demo skeleton for people to copy for easy entry of coloured remind entries.
+;; tried to hook in the auto-complete library so that all known functions and keywords can be easily entered.
+;; EXPERIMENTAL, but seems to work well here (emacs cvs).
+;; Seems to work without case folding which is nice. wonder why it didn't yesterday?
+
+;;; Code:
+
+
+(require 'font-lock); this goes in the define-derived-mode part.
+(when (featurep 'xemacs)
+  (require 'overlay)) ;I wonder if this will help with font-lock and xemacs?
+
+
+(defgroup remind-conf nil
+  "Options for remind-conf-mode."
+  :group 'remind-conf
+  :prefix "remind-conf-")
+
+
+(defvar remind-conf-mode-hook nil
+  "Hook to run in `remind-conf-mode'.")
+
+;; keymap
+
+(defvar remind-conf-mode-map
+  (let ((remind-conf-mode-map (make-sparse-keymap)))
+    remind-conf-mode-map)
+  "Keymap for `remind-conf-mode'.")
+
+(define-key remind-conf-mode-map "\C-cr" 'rem-skel)
+(define-key remind-conf-mode-map "\C-ct" 'rem-today)
+(define-key remind-conf-mode-map "\C-cd" 'rem-today-skel)
+(define-key remind-conf-mode-map "\C-cw" 'rem-week-away)
+(define-key remind-conf-mode-map "\C-cx" 'rem-tomorrow)
+(define-key remind-conf-mode-map "\C-ca" 'rem-days-away)
+(define-key remind-conf-mode-map "\M-j" 'remind-indent-line)
+(define-key remind-conf-mode-map (kbd "RET") 'remind-indent-line)
+(define-key remind-conf-mode-map "\C-c\C-c" 'rem-save-file)
+
+;; syntax-table
+
+(defvar remind-conf-syntax-table
+  (let ((remind-conf-syntax-table (make-syntax-table text-mode-syntax-table)))
+    (modify-syntax-entry ?\; ". 1b" remind-conf-syntax-table)
+    (modify-syntax-entry ?\# ". 1b" remind-conf-syntax-table)
+    (modify-syntax-entry ?\n "> b" remind-conf-syntax-table)
+					;Names with _ are still one word.
+    (modify-syntax-entry ?_ "w" remind-conf-syntax-table)
+    (modify-syntax-entry ?. "w" remind-conf-syntax-table)
+       remind-conf-syntax-table)
+  "Syntax table for `remind-conf-mode'.")
+
+;;; keyword sets
+
+(defconst remind-keywords
+  (sort
+   (list "RUN" "REM" "ONCE" "SATISFY" "BEFORE" "UNSET" "OMIT"
+	 "OMIT" "DATE" "SKIP" "ONCE" "AFTER" "WARN" "PRIORITY" "AT" "SCHED" "IF" "ELSE" "ENDIF"
+	 "WARN" "UNTIL" "SCANFROM" "DURATION" "TAG" "MSG" "MSF" "CAL" "SPECIAL" "IFTRIG"
+	 "PS" "PSFILE" "BANNER" "INCLUDE" "PUSH-OMIT-CONTEXT" "DEBUG" "DUMPVARS"
+	 "CLEAR-OMIT-CONTEXT" "POP-OMIT-CONTEXT"  "SET" "ERRMSG" "FSET"
+	 "EXIT" "FLUSH" "PRESERVE" "MOON" "COLOR")
+   #'(lambda (a b) (> (length a) (length b)))))
+
+(defconst remind-type-keywords
+  (sort
+   (list "INT" "STRING" "TIME" "DATE" "SHADE")
+     #'(lambda (a b) (> (length a) (length b)))))
+
+(defconst remind-builtin-variables
+  (sort
+   (list "$CalcUTC" "$CalMode" "$DefaultPrio" "$EndSent" "$EndSentIg" "$NumTrig"
+	 "$FirstIndent" "$FoldYear" "$FormWidth" "$MinsFromUTC" "$LatDeg" "$LatMin" "$LatSec"
+	 "$Location" "$LongDeg" "$LongMin" "$LongSec" "$MaxSatIter" "$SubsIndent")
+   #'(lambda (a b) (> (length a) (length b)))))
+
+(defconst remind-time-words
+  (sort
+   (list "Jan" "January" "Feb" "Mar" "Apr" "Jun" "Jul" "Aug" "Sept" "Sep" "Oct" "Nov" "Dec" "February" "March" "April" "May" "June" "July" "August" "September" "October" "November" "December" "Mon" "Monday" "Tue" "Tues" "Tuesday" "Wed" "Wednesday" "Thu" "Thursday" "Fri" "Friday" "Saturday" "Sat" "Sun" "Sunday")
+   #'(lambda (a b) (> (length a) (length b)))))
+
+(defconst remind-builtin-functions
+  (sort
+   (list "abs" "access" "shell" "args" "asc" "baseyr" "char" "choose" "coerce" "date"
+	 "dawn" "today" "day" "daysinmon" "defined" "dosubst" "dusk" "easterdate" "easter"
+	 "filedir" "filename" "getenv" "hour" "iif" "trigger" "index" "isdst" "isleap"
+	 "isomitted" "hebdate" "hebday" "hebmon" "hebyear" "language" "ord" "thisyear"
+	 "sunrise" "sunset" "lower" "max" "min" "minute" "mon" "moondate" "moontime"
+	 "moonphase" "now" "ostype" "plural" "realnow" "realtoday" "sgn" "strlen" "psshade"
+	 "substr" "trigdate" "trigger" "trigtime" "trigvalid" "typeof" "upper" "psmoon"
+	 "value" "version" "wkday" "wkdaynum" "msgprefix" "msgsuffix" "year")
+   #'(lambda (a b) (> (length a) (length b)))))
+
+;;; faces
+;;example of setting up special faces for a mode.
+
+(defvar remind-conf-command-face 'remind-conf-command-face
+  "Remind commands.")
+(defface remind-conf-command-face
+  '((t :foreground "SeaGreen4" :bold t))
+  "Font Lock mode face used to highlight commands."
+  :group 'remind-conf)
+
+(defvar remind-conf-keyword-face 'remind-conf-keyword-face
+  "Remind keywords.")
+(defface remind-conf-keyword-face
+  '((t :foreground "blue violet"))
+  "Font Lock mode face used to highlight keywords."
+  :group 'remind-conf)
+
+(defvar remind-conf-substitutes-face 'remind-conf-substitutes-face
+  "Remind substitutes.")
+(defface remind-conf-substitutes-face
+  '((t :foreground "blue2"))
+  "Font Lock mode face used to highlight substitutes."
+  :group 'remind-conf)
+
+(defvar remind-conf-endline-face 'remind-conf-endline-face
+  "Remind endline.")
+(defface remind-conf-endline-face
+  '((t :foreground "goldenrod2" :bold t))
+  "Font Lock mode face used to highlight commands."
+  :group 'remind-conf)
+
+(defvar remind-conf-variable-face 'remind-conf-variable-face
+  "Remind variable.")
+(defface remind-conf-variable-face
+  '((t :foreground "DeepPink2" :bold t))
+  "Font Lock mode face used to highlight commands."
+  :group 'remind-conf)
+
+(defvar remind-conf-color-face 'remind-conf-color-face
+  "Remind color variables.")
+(defface remind-conf-color-face
+  '((t :foreground "gold" :bold t))
+  "Font Lock mode face used to highlight color changes."
+  :group 'remind-conf)
+
+(defvar remind-conf-delta-face 'remind-conf-delta-face
+  "Remind deltas.")
+(defface remind-conf-delta-face
+  '((t :foreground "sandy brown" :bold t))
+  "Font Lock mode face used to highlight deltas."
+  :group 'remind-conf)
+
+(defvar remind-comment-face 'remind-comment-face
+  "Remind comments.")
+(defface remind-comment-face
+  '((t :foreground "brown"))
+  "Font-lock face for highlighting comments."
+  :group 'remind-conf)
+
+(defvar remind-string-face 'remind-string-face
+  "Remind strings.")
+(defface remind-string-face
+  '((t :foreground "tomato"))
+  "Font lock mode face used to highlight strings."
+  :group 'remind-conf)
+
+(defvar remind-time-face 'remind-time-face
+  "Remind time words.")
+(defface remind-time-face
+  '((t :foreground "LightSeaGreen" :bold t))
+  "Font lock mode face to highlight time phrases."
+  :group 'remind-conf)
+
+(defvar remind-conf-type-face 'remind-conf-type-face
+  "Remind type keywords.")
+(defface remind-conf-type-face
+  '((t :foreground "orange" :bold t))
+  "Font lock mode face to highlight type keywords."
+  :group 'remind-conf)
+
+(defcustom rem-post-save-function ""
+  "Name of shell function that can be run when you save and close a remind file.
+
+If you put a & after the name of the function, it will run asyncronously.  This might
+be useful if the process takes a long time."
+:type 'string
+:group 'remind-conf
+)
+
+;; keywords
+
+(defconst remind-conf-font-lock-keywords-1
+  (list
+   '("^[\;\#]\\s-+.*$" . remind-comment-face)
+   (cons (regexp-opt remind-keywords 'words) remind-conf-keyword-face)
+   '("%[\"_]" . font-lock-warning-face)
+   '("\\(%[a-mops-w]\\)" . remind-conf-substitutes-face)
+   '("\"[^\"]*\"" . remind-string-face))
+  "Minimal font-locking for `remind-conf-mode'.")
+
+(defconst remind-conf-font-lock-keywords-2
+  (append remind-conf-font-lock-keywords-1
+	  (list
+	   (cons (regexp-opt remind-time-words 'words) remind-time-face)
+	   (cons (regexp-opt remind-builtin-functions 'words) remind-conf-command-face)
+	   '("%$" . remind-conf-endline-face)))
+  "Additional commands to highlight in `remind-conf-mode'.")
+
+(defconst remind-conf-font-lock-keywords-3
+  (append remind-conf-font-lock-keywords-2
+	  (list
+	   (cons (regexp-opt remind-type-keywords 'words) remind-conf-type-face)
+	   '("\[[a-zA-Z]\\{3,6\\}\]" . remind-conf-color-face)
+	   '("\\s-+\\([12][0-9]\\|3[01]\\|0?[0-9]\\)\\s-+" . remind-conf-substitutes-face);better date regexp
+	   '("\\s-+\\(\\(?:20\\|19\\)[0-9][0-9]\\)\\s-+" . remind-conf-substitutes-face);years
+	   '("\\s-+\\(2[0-4]\\|[01]?[0-9][.:][0-5][0-9]\\)\\s-+" . remind-conf-substitutes-face);24hour clock, more precise
+	   '("\\s-+\\([+-][+-]?[1-9][0-9]*\\)\\s-+" 1 remind-conf-delta-face prepend)
+	   (cons (regexp-opt remind-builtin-variables 'words) remind-conf-variable-face)))
+  "The ultimate in highlighting experiences for `remind-conf-mode'.")
+
+(defcustom remind-conf-font-lock-keywords 'remind-conf-font-lock-keywords-3
+  "Font-lock highlighting level for `remind-conf-mode'."
+  :group 'remind-conf
+  :type '(choice (const :tag "Barest minimum of highlighting." remind-conf-font-lock-keywords-1)
+		 (const :tag "Medium highlighting." remind-conf-font-lock-keywords-2)
+		 (const :tag "Highlighting deluxe." remind-conf-font-lock-keywords-3)))
+
+;;; Indentation (I'm sure this could be made more simple. But at least it works.)
+
+(defcustom remind-indent-level 4
+  "User definable indentation."
+  :group 'remind-conf
+  :type '(integer)
+  )
+
+(defun remind-indent-line ()
+  "Indent current line for remind configuration files."
+  (interactive)
+  (forward-line 0) ;remember this happens on every line as it is done per line basis
+  (if (bobp)
+      (indent-line-to 0)
+    (let ((not-indented t) cur-indent)
+     	(if (looking-at "^[ \t]*\\<\\(ENDIF\\|POP\\(?:-OMIT-CONTEXT\\)?\\)\\>")
+	   (progn
+	     (save-excursion
+	     (forward-line -1) 
+	     (setq cur-indent (- (current-indentation) remind-indent-level))) ;note that not-indented is still t
+	     (if (< cur-indent 0) (setq cur-indent 0)))
+	  (save-excursion
+	    (while not-indented
+	      (forward-line -1)
+	      (if (looking-at "^[ \t]*\\<\\(ENDIF\\|POP\\(?:-OMIT-CONTEXT\\)?\\)\\>")
+		  (progn
+		    (setq cur-indent 0)
+		    (delete-horizontal-space) ;don't know why I need this when other similar indent functions don't.
+		    (setq not-indented nil))
+		(if (looking-at "\\<\\(IF\\(?:TRIG\\)?\\|PUSH\\(?:-OMIT-CONTEXT\\)?\\)\\>")
+		    (progn
+		      (setq cur-indent remind-indent-level)
+		      (setq not-indented nil))
+		  (if (bobp) 
+		      (setq not-indented nil))))))
+	  (if cur-indent
+	      (indent-line-to cur-indent)
+	    (indent-line-to 0))))))
+
+;;; Convenience functions
+
+(define-skeleton rem-skel
+  "Skeleton to insert a rem line in a remind configuration file."
+  nil
+  "REM "(skeleton-read "Date? " )
+  ("Optional: How many days ahead? " " +" str )
+  resume:
+  ("Optional: At what time? Format eg 13:00. " " AT " str)
+  resume:
+  ("Optional: How many minutes ahead? " " +" str )
+  resume:
+  ("Optional: At what priority? eg 0-9999" " PRIORITY " str )
+  resume:
+  " MSG %\"" (skeleton-read "Your message? " )"%b%\"%" \n
+  )
+
+(define-skeleton rem-today-skel
+  "Skeleton to insert a line for today's date."
+  nil
+  "REM " (format-time-string "%d %b %Y")
+  ("Optional: At what time? Format eg 13:20. " " AT " str)
+  resume:
+  ("Optional: How many minutes ahead? " " +" str )
+  resume:
+  ("Optional: At what priority? eg 0-9999" " PRIORITY " str )
+  resume:
+  " MSG " (skeleton-read "Your message? " )"%b.%" \n
+  )
+
+(defun rem-today ()
+  "Insert the date for today in a remind friendly style."
+  (interactive)
+  (insert (format-time-string "%e %b %Y")))
+
+(defun rem-tomorrow ()
+  "Insert tomorrow's date in a remind friendly style."
+  (interactive)
+  (insert (format-time-string "%e %b %Y" (time-add (current-time) (days-to-time 1)))))
+
+(defun rem-days-away (arg)
+  "Insert a day N number of days in the future.
+
+Takes a prefix argument, but defaults to 4."
+  (interactive "nHow many Days?: ")
+  (insert (format-time-string "%e %b %Y" (time-add (current-time) (days-to-time arg)))))
+
+(defun rem-week-away ()
+  "Insert a day 7 days in the future."
+  (interactive)
+  (insert (format-time-string "%e %b %Y" (time-add (current-time) (days-to-time 7)))))
+
+(setq skeleton-end-hook nil) ; so the skeletons will not automatically go to a new line.
+
+;;; private function
+;; could make it useful for others. Put somethin like the following in your .emacs
+;(setq rem-post-save-function "~/bin/dailypic &")
+
+(defun rem-save-file ()
+  "Save the file and start the shell function in one go.
+
+This function will close the window after running. It needs the
+variable `rem-post-save-function' to be set. It will be most
+useful to people who have some sort of function they run to use
+remind data ie procucing calendars."
+  (interactive)
+  (if (boundp 'rem-post-save-function)
+      (progn (save-buffer)
+	     (shell-command rem-post-save-function)
+	     (kill-buffer-and-window))
+    (error "`rem-post-save-function' variable is not set")))
+
+(defun rem-setup-colors ()
+  "Insert set of variables for coloured output in remind messages."
+  (interactive)
+  (find-file (expand-file-name "~/.reminders"))
+  (goto-char 0) ;we do want it somewhere near the top of the file.
+  (save-excursion
+    (re-search-forward "\n\n"); squeeze it in where you have a free line.
+    (insert "\nSET Esc   CHAR(27)
+SET Nrm   Esc + \"[0m\"
+SET Blk   Esc + \"[0;30m\"
+SET Red   Esc + \"[0;31m\"
+SET Grn   Esc + \"[0;32m\"
+SET Ylw   Esc + \"[0;33m\"
+SET Blu   Esc + \"[0;34m\"
+SET Mag   Esc + \"[0;35m\"
+SET Cyn   Esc + \"[0;36m\"
+SET Wht   Esc + \"[0;37m\"
+SET Gry   Esc + \"[30;1m\"
+SET BrRed Esc + \"[31;1m\"
+SET BrGrn Esc + \"[32;1m\"
+SET BrYlw Esc + \"[33;1m\"
+SET BrBlu Esc + \"[34;1m\"
+SET BrMag Esc + \"[35;1m\"
+SET BrCyn Esc + \"[36;1m\"
+SET BrWht Esc + \"[37;1m\" \n \n")))
+
+    ;; So now you can do things like:
+
+(define-skeleton birthcol
+  "Make birthdays magenta.
+Acts on the region or places point where it needs to be."
+  nil
+  "[Mag]" _ " [Nrm]")
+
+;; finally the derived mode.
+
+;;;###autoload
+(define-derived-mode remind-conf-mode text-mode "REM"
+  "Major mode for editing remind calendar configuration files.
+
+\\{remind-conf-mode-map}"
+  :syntax-table remind-conf-syntax-table
+  (set (make-local-variable 'font-lock-keywords-case-fold-search) t) ;this is not working atm 2009-04-13
+  (set (make-local-variable 'font-lock-defaults) '(remind-conf-font-lock-keywords))
+  (set (make-local-variable 'comment-start) ";")
+  (set (make-local-variable 'comment-start) "#")
+  (set (make-local-variable 'comment-end) "\n")
+  (set (make-local-variable 'fill-column) '100);cause I was having problems with autofill.
+  (set (make-local-variable 'indent-line-function) 'remind-indent-line)
+  (use-local-map remind-conf-mode-map)
+  )
+
+
+    (provide 'remind-conf-mode)
+;;; remind-conf-mode.el ends here
+
+;;; Indentation code
+;;; work out how to make the syntax highlighting work only before the (MSG|MSF)
+;;; keywords and not after. 
+;;; for my own use. keymap to save file and do dailypic C-c C-c in time honoured tradition?

docs/WHATSNEW

@@ -1,5 +1,41 @@
 CHANGES TO REMIND
 
+* Version 3.1 Patch 9 - 2010-06-20
+
+- MAJOR ENHANCEMENT: New "purge mode" to delete expired reminders.  See
+  the PURGE MODE section of the remind man page.
+
+- ENHANCEMENT: Support DURATION in TkRemind.  Thanks to Marek Marczykowski.
+
+- BUG FIX: Don't change the order of PS and PSFILE reminders.  Bug found
+  by John McGowan.
+
+- BUG FIX: "REM 1990-01-01 SATISFY 1" would yield a spurious parse error
+  in earlier versions of Remind.
+
+- BUG FIX: Yom HaShoah is moved to Thursday if it would normally fall on
+  a Friday.  Thanks to Jonathan Kamens for pointing this out.
+
+* Version 3.1 Patch 8 - 2010-03-09
+
+- ENHANCEMENT: Include some useful scripts in contrib/
+
+- ENHANCEMENT: Add the $T, $Td, $Tm, $Tw, $Ty, $U, $Ud, $Um, $Uw, $Uy
+  special variables to make reminder files less wordy.  See man page
+  for details.
+
+- MINOR ENHANCEMENT: Set an icon photo window manager resource on TkRemind.
+
+- POLICY CHANGE: Discourage use of Remind on MS Windows or Apple Mac OS X.
+
+- BUG FIX: Ignore msgprefix() and msgsuffix() on RUN-type reminders.
+
+- BUG FIX: Adjust Remind and Rem2PS so that SHADE specials don't obliterate
+  earlier MOON specials.
+
+- BUG FIX: Fix bug in SCHED calculations if Remind is started in the middle
+  of a SCHED interval.
+
 * Version 3.1 Patch 7 - 2009-05-31
 
 - ENHANCEMENT: Wherever you could write "day Mon year", the parser now

examples/defs.rem

@@ -27,8 +27,8 @@ RUN OFF
 ################################################
 # Ensure required version of remind is used... #
 ################################################
-IF version() < "03.01.07"
-   ERRMSG This file requires at least version 03.01.07 of Remind.%
+IF version() < "03.01.08"
+   ERRMSG This file requires at least version 03.01.08 of Remind.%
    ERRMSG This version is version [version()].
    EXIT
 ENDIF
@@ -508,7 +508,13 @@ IF !InIsrael && !Reform
    [_h(22, "Nisan")] MSG %"Pesach 8%"
 ENDIF
 
-[_PastSun(27, "Nisan")] ++4 MSG %"Yom HaShoah%" is %b.
+REM [_PastSun(27, "Nisan")] SATISFY 1
+
+IF $Tw == 5
+   REM [_PastSun(26, "Nisan")] ++4 MSG %"Yom HaShoah%" is %b.
+ELSE
+   REM [_PastSun(27, "Nisan")] ++4 MSG %"Yom HaShoah%" is %b.
+ENDIF
 
 # If 4 Iyar is a Friday, then Yom Hazikaron is
 # the Wednesday before and Yom Ha'atzmaut is on

man/remind.1

@@ -29,6 +29,10 @@ The \fB\-n\fR option causes \fBRemind\fR to print the \fBnext\fR occurrence
 of each reminder in a simple calendar format.  You can sort this by
 date by piping the output through \fBsort(1)\fR.
 .TP
+.B \-j\fR[\fIn\fR]
+Runs \fBRemind\fR in "purge" mode to get rid of expired reminders.
+See the section PURGE MODE for details.
+.TP
 .B \-r
 The \fB\-r\fR option disables \fBRUN\fR directives and the \fBshell()\fR
 function.  As of Remind 3.00.17, using \fB\-u\fR implies \fB\-r\fR.
@@ -668,6 +672,17 @@ In the second statement, the "+60" is a \fIdelta\fR that applies to the
 date rather than a \fItdelta\fR that applies to the time.  We recommend
 explicitly using the AT keyword with timed reminders.
 .PP
+.B THE REMIND ALGORITHM
+.PP
+\fBRemind\fR uses the following algorithm to compute a trigger date:
+Starting from the current date, it examines each day, one at a time, until
+it finds a date that satisfies the date specification, or proves to
+itself that no such date exists.  (Actually, \fBRemind\fR merely
+\fIbehaves\fR as if it used this algorithm; it would be much too slow
+in practice.  Internally, \fBRemind\fR uses much faster techniques to
+calculate a trigger date.)  See DETAILS ABOUT TRIGGER COMPUTATION for
+more information.
+.PP
 .B BACKWARD SCANNING
 .PP
 Sometimes, it is necessary to specify a date as being a set amount of
@@ -1968,10 +1983,21 @@ order, or 2 if sorting by time in descending order.
 .B $SubsIndent
 The number of spaces by which all lines (except the first) of an
 \fBMSF\fR-type reminder should be indented.  The default is 0.
-.PP
-Note:  If any of the calendar modes are in effect, then the
-values of $Daemon, $DontFork, $DontTrigAts, $DontQueue, $HushMode,
-$IgnoreOnce, $InfDelta, and $NextMode are not meaningful.
+.TP
+.B $T (read-only, DATE type)
+Exactly equivalent to \fBtrigdate()\fR.  (See BUILT-IN FUNCTIONS.)
+.TP
+.B $Td (read-only)
+Equivalent to \fBday(trigdate())\fR.
+.TP
+.B $Tm (read-only)
+Equivalent to \fBmonnum(trigdate())\fR.
+.TP
+.B $Tw (read-only)
+Equivalent to \fBwkdaynum(trigdate())\fR.
+.TP
+.B $Ty (read-only)
+Equivalent to \fByear(trigdate())\fR.
 .TP
 .B $TimeSep
 This variable can be set only to ":" or ".".  It holds the character
@@ -1981,6 +2007,25 @@ DATETIME value.
 .B $UntimedFirst (read-only)
 Set to 1 if the \fB\-g\fR option is used with a fourth sort character
 of "d"; set to 0 otherwise.
+.TP
+.B $U (read-only, DATE type)
+Exactly equivalent to \fBtoday()\fR.  (See BUILT-IN FUNCTIONS.)
+.TP
+.B $Ud (read-only)
+Equivalent to \fBday(today())\fR.
+.TP
+.B $Um (read-only)
+Equivalent to \fBmonnum(today())\fR.
+.TP
+.B $Uw (read-only)
+Equivalent to \fBwkdaynum(today())\fR.
+.TP
+.B $Uy (read-only)
+Equivalent to \fByear(today())\fR.
+.PP
+Note:  If any of the calendar modes are in effect, then the
+values of $Daemon, $DontFork, $DontTrigAts, $DontQueue, $HushMode,
+$IgnoreOnce, $InfDelta, and $NextMode are not meaningful.
 .PP
 .B BUILT-IN FUNCTIONS
 .PP
@@ -2107,6 +2152,10 @@ actual date and time, or may be the date and time supplied on the command line.
 The \fBdate()\fR function returns a \fBDATE\fR object with the year,
 month and day components specified by \fIy\fR, \fIm\fR and \fId\fR.
 .TP
+.B datepart(dq_datetime)
+Returns a \fBDATE\fR object representing the date portion of
+\fIdatetime\fR.
+.TP
 .B datetime(args)
 The \fBdatetime()\fR function can take anywhere from two to five arguments.
 It always returns a DATETIME generated from its arguments.
@@ -2254,6 +2303,18 @@ environment variable is not defined.  Note that the names of environment
 variables are generally case-sensitive; thus, getenv("HOME") is not
 the same as getenv("home").
 .TP
+.B hebdate(i_day, s_hebmon [,idq_yrstart [,i_jahr [,i_aflag]]])
+Support for Hebrew dates - see the section "The Hebrew Calendar"
+.TP
+.B hebday(dq_date)
+Support for Hebrew dates - see the section "The Hebrew Calendar"
+.TP
+.B hebmon(dq_date)
+Support for Hebrew dates - see the section "The Hebrew Calendar"
+.TP
+.B hebyear(dq_date)
+Support for Hebrew dates - see the section "The Hebrew Calendar"
+.TP
 .B hour(tq_time)
 Returns the hour component of \fItime\fR.
 .TP
@@ -2297,18 +2358,6 @@ context.  Returns 0 otherwise.  (If a datetime is supplied, only the
 date part is used.)  Note that any local \fBOMIT\fR or \fBOMITFUNC\fR
 clauses are \fInot\fR taken into account by this function.
 .TP
-.B hebdate(i_day, s_hebmon [,idq_yrstart [,i_jahr [,i_aflag]]])
-Support for Hebrew dates - see the section "The Hebrew Calendar"
-.TP
-.B hebday(dq_date)
-Support for Hebrew dates - see the section "The Hebrew Calendar"
-.TP
-.B hebmon(dq_date)
-Support for Hebrew dates - see the section "The Hebrew Calendar"
-.TP
-.B hebyear(dq_date)
-Support for Hebrew dates - see the section "The Hebrew Calendar"
-.TP
 .B language()
 Returns a \fBSTRING\fR naming the language supported by \fBRemind\fR.
 (See "Foreign Language Support.") By default, \fBRemind\fR is compiled
@@ -2639,6 +2688,10 @@ than 60 degrees.  The functions are available starting from version
 Creates a \fBTIME\fR with the hour and minute components specified by
 \fIhr\fR and \fImin\fR.
 .TP
+.B timepart(tq_datetime)
+Returns a \fBTIME\fR object representing the time portion of
+\fIdatetime\fR.
+.TP
 .B today()
 Returns \fBRemind\fR's notion of "today."  This may be the actual system
 date, or a date supplied on the command line, or the date of the
@@ -3585,7 +3638,68 @@ so to run in the daemon mode in the background, use:
 .PP
 If you use \fBsh\fR or \fBbash\fR, you may have to use the "nohup" command
 to ensure that the daemon is not killed when you log out.
+
 .PP
+.SH PURGE MODE
+.PP
+
+If you supply the \fB\-j\fR command-line option, \fBRemind\fR runs
+in \fIpurge mode\fR.  In this mode, it tries to purge expired reminders
+from your reminder files.
+.PP
+In purge mode, \fBRemind\fR reads your reminder file and creates a new
+file by appending ".purged" to the original file name.  Note that
+\fBRemind\fR \fInever\fR edits your original file; it always creates
+a new .purged file.
+.PP
+If you invoke \fBRemind\fR against a directory instead of a file, then
+a .purged file is created for each *.rem file in the directory.
+.PP
+Normally, \fBRemind\fR does not create .purged files for INCLUDed files.
+However, if you supply a numeric argument after \fB\-j\fR, then \fBRemind\fR
+will create .purged files for the specified level of INCLUDE.  For example,
+if you invoke \fBRemind\fR with the argument \fB\-j2\fR, then .purged
+files will be created for the file (or directory) specified on the command
+line, any files included by them, and any files included by those files.
+However, .purged files will not be created for third-or-higher level
+INCLUDE files.
+.PP
+Determining which reminders have expired is extremely tricky.  \fBRemind\fR
+does its best, but you should always compare the .purged file to the
+original file and hand-merge the changes back in.
+.PP
+Remind annotates the .purged file as follows:
+.PP
+An expired reminder is prefixed with:  #!P: Expired:
+.PP
+In situations where \fBRemind\fR cannot reliably determine that
+something was expired, you may see the following comments inserted
+before the problematic line:
+.PP
+.nf
+   #!P: Cannot purge SATISFY-type reminders
+
+   #!P: The next IF evaluated false...
+   #!P: REM statements in IF block not checked for purging.
+
+   #!P: The previous IF evaluated true.
+   #!P: REM statements in ELSE block not checked for purging
+
+   #!P: The next IFTRIG did not trigger.
+   #!P: REM statements in IFTRIG block not checked for purging.
+
+   #!P: Next line has expired, but contains expression...  please verify
+
+   #!P: Next line may have expired, but contains non-constant expression
+
+   #!P! Could not parse next line: Some-Error-Message-Here
+.fi
+.PP
+\fBRemind\fR always annotates .purged files with lines beginning with
+"#!P".  If such lines are encountered in the \fIoriginal\fR file,
+they are not copied to the .purged file.
+.PP
+
 .SH SORTING REMINDERS
 .PP
 

scripts/tkremind

@@ -8,7 +8,7 @@
 #
 #   This file is part of REMIND.
 #   Copyright (C) 1992-1998 David F. Skoll
-#   Copyright (C) 1999-2009 Roaring Penguin Software Inc.
+#   Copyright (C) 1999-2010 Roaring Penguin Software Inc.
 #
 #--------------------------------------------------------------
 
@@ -17,6 +17,38 @@ exec wish "$0" "$@"
 
 wm withdraw .
 
+# Our icon photo
+catch {
+    image create photo rpicon -data {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    }
+
+    wm iconphoto . -default rpicon
+}
+
 proc missing_tcllib { pkg } {
     catch { puts stderr "Could not find the '$pkg' package -- you must install tcllib.\nPlease see http://tcllib.sourceforge.net/" }
     tk_dialog .err "Error: tcllib not installed" "Could not find the '$pkg' package -- you must install tcllib.  Please see http://tcllib.sourceforge.net/" error 0 OK
@@ -1123,12 +1155,13 @@ proc CreateModifyDialog {w day firstDay args} {
     frame $w.exp -border 4
     frame $w.adv -border 4
     frame $w.weekend -border 4
+    frame $w.durationbox -border 4
     frame $w.time -border 4
     frame $w.hol -border 4
     frame $w.msg
     frame $w.buttons
     pack $w.o1 $w.o2 $w.o3  -side top -anchor w -in $w.o
-    pack $w.o $w.exp $w.adv $w.weekend $w.time $w.hol $w.msg -side top -anchor w -pady 4 -expand 1 -fill both
+    pack $w.o $w.exp $w.adv $w.weekend $w.time $w.durationbox $w.hol $w.msg -side top -anchor w -pady 4 -expand 1 -fill both
     pack $w.buttons -side top -anchor w -pady 4 -expand 1 -fill x
 
     # TYPE 1 REMINDER
@@ -1269,6 +1302,22 @@ proc CreateModifyDialog {w day firstDay args} {
 	pack $w.timebut $w.timehour $w.timemin $w.ampm $w.timeadvbut $w.timeadv $w.timelab1 $w.timerepbut $w.timerep $w.timelab2 -side left -anchor w -in $w.time
     }
 
+    # DURATION
+    checkbutton $w.durationbut -text "Duration"
+    $w.durationbut deselect
+    menubutton $w.durationh -text "1" -menu $w.durationh.menu -relief raised
+    menu $w.durationh.menu -tearoff 0
+    foreach i {0 1 2 3 4 5 6 7 8 9 10 11 12} {
+	$w.durationh.menu add command -label $i -command "$w.durationh configure -text $i"
+    }
+    label $w.durationcolon -text ":"
+    menubutton $w.durationm -text "00" -menu $w.durationm.menu -relief raised
+    menu $w.durationm.menu -tearoff 0
+    foreach i {00 15 30 45} {
+	$w.durationm.menu add command -label $i -command "$w.durationm configure -text $i"
+    }
+    pack $w.durationbut $w.durationh $w.durationcolon $w.durationm -side left -anchor w -in $w.durationbox
+
     # SKIP TYPE
     label $w.labhol -text "On holidays or weekends:"
     radiobutton $w.issue -variable SkipType -value 1 -text "Issue reminder as usual"
@@ -1311,7 +1360,7 @@ proc CreateModifyDialog {w day firstDay args} {
 #***********************************************************************
 proc RemindDialogToOptions { w } {
     global OptionType SkipType repbut expbut advbut advcount
-    global timebut timeadvbut timerepbut
+    global timebut timeadvbut timerepbut durationbut
     global dSaturday dSunday dMonday dTuesday dWednesday dThursday dFriday
     set ans {}
     lappend ans "-global-OptionType" $OptionType
@@ -1345,7 +1394,7 @@ proc RemindDialogToOptions { w } {
 #***********************************************************************
 proc OptionsToRemindDialog { w opts } {
     global OptionType SkipType repbut expbut advbut advcount
-    global timebut timeadvbut timerepbut TwentyFourHourMode
+    global timebut timeadvbut timerepbut TwentyFourHourMode durationbut
     global dSaturday dSunday dMonday dTuesday dWednesday dThursday dFriday
     set hour ""
     set ampm ""
@@ -1557,7 +1606,7 @@ proc CreateReminder {w} {
     # Delegate the first part to CreateReminder1, CreateReminder2, or
     # CreateReminder3
     global OptionType SkipType repbut expbut advbut advcount
-    global timebut timeadvbut timerepbut
+    global timebut timeadvbut timerepbut durationbut
 
     set rem [CreateReminder$OptionType $w]
 
@@ -1599,6 +1648,9 @@ proc CreateReminder {w} {
 	if {$timerepbut} {
 	    append rem " *[$w.timerep cget -text]"
 	}
+	if {$durationbut} {
+	    append rem " DURATION [$w.durationh cget -text]:[$w.durationm cget -text]"
+	}
     }
 
     global SkipType
@@ -2271,7 +2323,7 @@ proc main {} {
     global AppendFile HighestTagSoFar DayNames
     catch {
 	puts "\nTkRemind Copyright (C) 1996-1998 David F. Skoll"
-	puts "Copyright (C) 1999-2009 Roaring Penguin Software Inc."
+	puts "Copyright (C) 1999-2010 Roaring Penguin Software Inc."
     }
     catch { SetFonts }
     LoadOptions

src/Makefile.in

@@ -38,7 +38,7 @@ REMINDOBJS= $(REMINDSRCS:.c=.o)
 all: remind rem2ps
 
 test: remind
-	sh ../tests/test-rem
+	@sh ../tests/test-rem
 
 .c.o:
 	@CC@ -c @CFLAGS@ @DEFS@ $(CEXTRA) $(LANGDEF) -I. -I$(srcdir) $<
@@ -80,13 +80,13 @@ depend:
 # Build a tar file based on all files checked into git.
 distro:
 	ln -s . ../remind-$(VERSION)
-	(cd ..; git-ls-files -x .gitignore) | sed -e 's/^/remind-$(VERSION)\//' | xargs tar -C .. -cvf remind-$(VERSION).tar
+	(cd ..; git ls-files -x .gitignore) | sed -e 's/^/remind-$(VERSION)\//' | xargs tar -C .. -cvf remind-$(VERSION).tar
 	gzip -f -v -9 remind-$(VERSION).tar
 	rm -f ../remind-$(VERSION)
 
 beta-tgz:
 	ln -s . ../remind-$(VERSION)-BETA-$(BETA)
-	(cd ..; git-ls-files -x .gitignore) | sed -e 's/^/remind-$(VERSION)-BETA-$(BETA)\//' | xargs tar -C .. -cvf remind-$(VERSION)-BETA-$(BETA).tar
+	(cd ..; git ls-files -x .gitignore) | sed -e 's/^/remind-$(VERSION)-BETA-$(BETA)\//' | xargs tar -C .. -cvf remind-$(VERSION)-BETA-$(BETA).tar
 	gzip -f -v -9 remind-$(VERSION)-BETA-$(BETA).tar
 	rm -f ../remind-$(VERSION)-BETA-$(BETA)
 

src/calendar.c

@@ -770,7 +770,10 @@ static int DoCalRem(ParsePtr p, int col)
     if (trig.typ == NO_TYPE) return E_EOLN;
     if (trig.typ == SAT_TYPE) {
 	r=DoSatRemind(&trig, &tim, p);
-	if (r) return r;
+	if (r) {
+	    if (r == E_EXPIRED) return OK;
+	    return r;
+	}
 	if (!LastTrigValid) return OK;
 	r=ParseToken(p, &buf);
 	if (r) return r;
@@ -871,7 +874,7 @@ static int DoCalRem(ParsePtr p, int col)
 	    char evalBuf[64];
 	    sprintf(evalBuf, "calprefix(%d)", trig.priority);
 	    s2 = evalBuf;
-	    r = EvalExpr(&s2, &v);
+	    r = EvalExpr(&s2, &v, NULL);
 	    if (!r) {
 		if (!DoCoerce(STR_TYPE, &v)) {
 		    if (DBufPuts(&obuf, v.v.str) != OK) {
@@ -908,7 +911,7 @@ static int DoCalRem(ParsePtr p, int col)
 	    char evalBuf[64];
 	    sprintf(evalBuf, "calsuffix(%d)", trig.priority);
 	    s2 = evalBuf;
-	    r = EvalExpr(&s2, &v);
+	    r = EvalExpr(&s2, &v, NULL);
 	    if (!r) {
 		if (!DoCoerce(STR_TYPE, &v)) {
 		    if (DBufPuts(&obuf, v.v.str) != OK) {
@@ -922,7 +925,7 @@ static int DoCalRem(ParsePtr p, int col)
 	    }
 	}
 	s = DBufValue(&obuf);
-	if (!DoSimpleCalendar) while (isspace(*s)) s++;
+	if (!DoSimpleCalendar) while (isempty(*s)) s++;
 	DBufPuts(&pre_buf, s);
 	s = DBufValue(&pre_buf);
 	e = NEW(CalEntry);

src/dorem.c

@@ -58,10 +58,18 @@ int DoRem(ParsePtr p)
     /* Parse the trigger date and time */
     if ( (r=ParseRem(p, &trig, &tim, 1)) ) return r;
 
-    if (trig.typ == NO_TYPE) return E_EOLN;
+    if (trig.typ == NO_TYPE) {
+	PurgeEchoLine("%s\n%s\n", "#!P! Cannot parse next line", CurLine);
+	return E_EOLN;
+    }
     if (trig.typ == SAT_TYPE) {
+	PurgeEchoLine("%s\n", "#!P: Cannot purge SATISFY-type reminders");
+	PurgeEchoLine("%s\n", CurLine);
 	r=DoSatRemind(&trig, &tim, p);
-	if (r) return r;
+	if (r) {
+	    if (r == E_EXPIRED) return OK;
+	    return r;
+	}
 	if (!LastTrigValid) return OK;
 	r=ParseToken(p, &buf);
 	if (r) return r;
@@ -88,12 +96,37 @@ int DoRem(ParsePtr p)
 	trig.typ = tok.val;
 	jul = LastTriggerDate;
 	if (!LastTrigValid) return OK;
+	if (PurgeMode) return OK;
     } else {
 	/* Calculate the trigger date */
 	jul = ComputeTrigger(trig.scanfrom, &trig, &r, 1);
-	if (r) return r;
+	if (r) {
+	    if (PurgeMode) {
+		PurgeEchoLine("%s: %s\n", "#!P! Problem calculating trigger date", ErrMsg[r]);
+		PurgeEchoLine("%s\n", CurLine);
+	    }
+	    return r;
+	}
     }
 
+    if (PurgeMode) {
+	if (trig.expired || jul < JulianToday) {
+	    if (p->expr_happened) {
+		if (p->nonconst_expr) {
+		    PurgeEchoLine("%s\n", "#!P: Next line may have expired, but contains non-constant expression");
+		    PurgeEchoLine("%s\n", CurLine);
+		} else {
+		    PurgeEchoLine("%s\n", "#!P: Next line has expired, but contains expression...  please verify");
+		    PurgeEchoLine("#!P: Expired: %s\n", CurLine);
+		}
+	    } else {
+		PurgeEchoLine("#!P: Expired: %s\n", CurLine);
+	    }
+	} else {
+	    PurgeEchoLine("%s\n", CurLine);
+	}
+	return OK;
+    }
 /* Queue the reminder, if necessary */
     if (jul == JulianToday &&
 	!(!IgnoreOnce &&
@@ -653,18 +686,24 @@ int TriggerReminder(ParsePtr p, Trigger *t, TimeTrig *tim, int jul)
     if (t->typ == PASSTHRU_TYPE && !strcmp(t->passthru, "COLOR")) {
 	/* Strip off three tokens */
 	r = ParseToken(p, &buf);
-	DBufPuts(&pre_buf, DBufValue(&buf));
-	DBufPutc(&pre_buf, ' ');
+	if (!NextMode) {
+	    DBufPuts(&pre_buf, DBufValue(&buf));
+	    DBufPutc(&pre_buf, ' ');
+	}
 	DBufFree(&buf);
 	if (r) return r;
 	r = ParseToken(p, &buf);
-	DBufPuts(&pre_buf, DBufValue(&buf));
-	DBufPutc(&pre_buf, ' ');
+	if (!NextMode) {
+	    DBufPuts(&pre_buf, DBufValue(&buf));
+	    DBufPutc(&pre_buf, ' ');
+	}
 	DBufFree(&buf);
 	if (r) return r;
 	r = ParseToken(p, &buf);
-	DBufPuts(&pre_buf, DBufValue(&buf));
-	DBufPutc(&pre_buf, ' ');
+	if (!NextMode) {
+	    DBufPuts(&pre_buf, DBufValue(&buf));
+	    DBufPutc(&pre_buf, ' ');
+	}
 	DBufFree(&buf);
 	if (r) return r;
 	t->typ = MSG_TYPE;
@@ -748,38 +787,46 @@ int TriggerReminder(ParsePtr p, Trigger *t, TimeTrig *tim, int jul)
 	return OK;
     }
 
-/* Put the substituted string into the substitution buffer */
-    if (UserFuncExists("msgprefix") == 1) {
-	sprintf(PrioExpr, "msgprefix(%d)", t->priority);
-	s = PrioExpr;
-	r = EvalExpr(&s, &v);
-	if (!r) {
-	    if (!DoCoerce(STR_TYPE, &v)) {
-		if (DBufPuts(&buf, v.v.str) != OK) {
-		    DBufFree(&buf);
-		    DestroyValue(v);
-		    return E_NO_MEM;
+    /* Put the substituted string into the substitution buffer */
+
+    /* Don't use msgprefix() on RUN-type reminders */
+    if (t->typ != RUN_TYPE) {
+	if (UserFuncExists("msgprefix") == 1) {
+	    sprintf(PrioExpr, "msgprefix(%d)", t->priority);
+	    s = PrioExpr;
+	    r = EvalExpr(&s, &v, NULL);
+	    if (!r) {
+		if (!DoCoerce(STR_TYPE, &v)) {
+		    if (DBufPuts(&buf, v.v.str) != OK) {
+			DBufFree(&buf);
+			DestroyValue(v);
+			return E_NO_MEM;
+		    }
 		}
+		DestroyValue(v);
 	    }
-	    DestroyValue(v);
 	}
     }
+
     if ( (r=DoSubst(p, &buf, t, tim, jul, NORMAL_MODE)) ) return r;
-    if (UserFuncExists("msgsuffix") == 1) {
-	sprintf(PrioExpr, "msgsuffix(%d)", t->priority);
-	s = PrioExpr;
-	r = EvalExpr(&s, &v);
-	if (!r) {
-	    if (!DoCoerce(STR_TYPE, &v)) {
-		if (DBufPuts(&buf, v.v.str) != OK) {
-		    DBufFree(&buf);
-		    DestroyValue(v);
-		    return E_NO_MEM;
+    if (t->typ != RUN_TYPE) {
+	if (UserFuncExists("msgsuffix") == 1) {
+	    sprintf(PrioExpr, "msgsuffix(%d)", t->priority);
+	    s = PrioExpr;
+	    r = EvalExpr(&s, &v, NULL);
+	    if (!r) {
+		if (!DoCoerce(STR_TYPE, &v)) {
+		    if (DBufPuts(&buf, v.v.str) != OK) {
+			DBufFree(&buf);
+			DestroyValue(v);
+			return E_NO_MEM;
+		    }
 		}
+		DestroyValue(v);
 	    }
-	    DestroyValue(v);
 	}
     }
+
     if ((!MsgCommand && t->typ == MSG_TYPE) || t->typ == MSF_TYPE) {
 	if (DBufPutc(&buf, '\n') != OK) {
 	    DBufFree(&buf);
@@ -924,7 +971,7 @@ int DoSatRemind(Trigger *trig, TimeTrig *tim, ParsePtr p)
 	    if (r == E_CANT_TRIG) return OK; else return r;
 	}
 	if (jul == -1) {
-	    return OK;
+	    return E_EXPIRED;
 	}
 	s = p->pos;
 	r = EvaluateExpr(p, &v);
@@ -1065,7 +1112,7 @@ static int ShouldTriggerBasedOnWarn(Trigger *t, int jul, int *err)
     for (i=1; ; i++) {
 	sprintf(buffer, "%s(%d)", t->warn, i);
 	s = buffer;
-	r = EvalExpr(&s, &v);
+	r = EvalExpr(&s, &v, NULL);
 	if (r) {
 	    Eprint("%s: `%s': %s", ErrMsg[M_BAD_WARN_FUNC],
 		   t->warn, ErrMsg[r]);

src/expr.c

@@ -41,7 +41,7 @@ static int Multiply(void), Divide(void), Mod(void), Add(void),
     UnMinus(void), LogNot(void),
     Compare(int);
 
-static int MakeValue (char const *s, Value *v, Var *locals);
+static int MakeValue (char const *s, Value *v, Var *locals, ParsePtr p);
 
 /* Binary operators - all left-associative */
 
@@ -132,7 +132,7 @@ static void CleanStack(void)
 static char PeekChar(char const **s)
 {
     char const *t = *s;
-    while (*t && isspace(*t)) t++;
+    while (*t && isempty(*t)) t++;
     return *t;
 }
 
@@ -150,7 +150,7 @@ static int ParseExprToken(DynamicBuffer *buf, char const **in)
 
     DBufFree(buf);
 /* Skip white space */
-    while (**in && isspace(**in)) (*in)++;
+    while (**in && isempty(**in)) (*in)++;
 
     if (!**in) return OK;
 
@@ -283,7 +283,7 @@ static int ParseExprToken(DynamicBuffer *buf, char const **in)
 	(*in)++;
     }
     /* Chew up any remaining white space */
-    while (**in && isspace(**in)) (*in)++;
+    while (**in && isempty(**in)) (*in)++;
 
     /* Peek ahead - is it '('?  Then we have a function call */
     if (**in == '(') {
@@ -303,14 +303,14 @@ static int ParseExprToken(DynamicBuffer *buf, char const **in)
 /*  Put the result into value pointed to by v.                 */
 /*                                                             */
 /***************************************************************/
-int EvalExpr(char const **e, Value *v)
+int EvalExpr(char const **e, Value *v, ParsePtr p)
 {
     int r;
 
     OpStackPtr = 0;
     ValStackPtr = 0;
 
-    r = Evaluate(e, NULL);
+    r = Evaluate(e, NULL, p);
 
     /* Put last character parsed back onto input stream */
     if (DBufLen(&ExprBuf)) (*e)--;
@@ -326,7 +326,7 @@ int EvalExpr(char const **e, Value *v)
 }
 
 /* Evaluate - do the actual work of evaluation. */
-int Evaluate(char const **s, Var *locals)
+int Evaluate(char const **s, Var *locals, ParsePtr p)
 {
     int OpBase, ValBase;
     int r;
@@ -351,7 +351,7 @@ int Evaluate(char const **s, Var *locals)
 
 	if (*DBufValue(&ExprBuf) == '(') { /* Parenthesized expression */
 	    DBufFree(&ExprBuf);
-	    r = Evaluate(s, locals);  /* Leaves the last parsed token in ExprBuf */
+	    r = Evaluate(s, locals, p);  /* Leaves the last parsed token in ExprBuf */
 	    if (r) return r;
 	    r = OK;
 	    if (*DBufValue(&ExprBuf) != ')') {
@@ -374,9 +374,11 @@ int Evaluate(char const **s, Var *locals)
 	    }
 	    args = 0;
 	    if (PeekChar(s) == ')') { /* Function has no arguments */
-		if (f) r = CallFunc(f, 0);
-		else {
-		    r = CallUserFunc(ufname, 0);
+		if (f) {
+		    if (!f->is_constant && (p != NULL)) p->nonconst_expr = 1;
+		    r = CallFunc(f, 0);
+		} else {
+		    r = CallUserFunc(ufname, 0, p);
 		    free((char *) ufname);
 		}
 		if (r) return r;
@@ -385,7 +387,7 @@ int Evaluate(char const **s, Var *locals)
 	    } else { /* Function has some arguments */
 		while(1) {
 		    args++;
-		    r = Evaluate(s, locals);
+		    r = Evaluate(s, locals, p);
 		    if (r) {
 			if (!f) free((char *) ufname);
 			return r;
@@ -399,9 +401,11 @@ int Evaluate(char const **s, Var *locals)
 			return E_EXPECT_COMMA;
 		    }
 		}
-		if (f) r = CallFunc(f, args);
-		else {
-		    r = CallUserFunc(ufname, args);
+		if (f) {
+		    if (!f->is_constant && (p != NULL)) p->nonconst_expr = 1;
+		    r = CallFunc(f, args);
+		} else {
+		    r = CallUserFunc(ufname, args, p);
 		    free((char *) ufname);
 		}
 		DBufFree(&ExprBuf);
@@ -422,7 +426,7 @@ int Evaluate(char const **s, Var *locals)
 		DBufFree(&ExprBuf);
 		return E_ILLEGAL_CHAR;
 	    } else { /* Must be a literal value */
-		r = MakeValue(DBufValue(&ExprBuf), &va, locals);
+		r = MakeValue(DBufValue(&ExprBuf), &va, locals, p);
 		DBufFree(&ExprBuf);
 		if (r) return r;
 		PushValStack(va);
@@ -486,7 +490,7 @@ int Evaluate(char const **s, Var *locals)
 /*  a date or the value of a symbol.                           */
 /*                                                             */
 /***************************************************************/
-static int MakeValue(char const *s, Value *v, Var *locals)
+static int MakeValue(char const *s, Value *v, Var *locals, ParsePtr p)
 {
     int len;
     int h, m, r;
@@ -541,6 +545,7 @@ static int MakeValue(char const *s, Value *v, Var *locals)
 	v->v.val = len;
 	return OK;
     } else if (*s == '$') { /* A system variable */
+	if (p) p->nonconst_expr = 1;
 	if (DebugFlag & DB_PRTEXPR)
 	    fprintf(ErrFp, "%s => ", s);
 	r = GetSysVar(s+1, v);
@@ -551,10 +556,11 @@ static int MakeValue(char const *s, Value *v, Var *locals)
 	    Putc('\n', ErrFp);
 	}
 	return r;
-    } else /* Must be a symbol */
+    } else { /* Must be a symbol */
 	if (DebugFlag & DB_PRTEXPR)
 	    fprintf(ErrFp, "%s => ", s);
-    r = GetVarValue(s, v, locals);
+    }
+    r = GetVarValue(s, v, locals, p);
     if (! (DebugFlag & DB_PRTEXPR)) return r;
     if (r == OK) {
 	PrintValue(v, ErrFp);

src/files.c

@@ -17,6 +17,7 @@
 #include <stdio.h>
 
 #include <string.h>
+#include <errno.h>
 #include <ctype.h>
 #include <sys/stat.h>
 
@@ -97,6 +98,32 @@ static void DestroyCache (CachedFile *cf);
 static int CheckSafety (void);
 static int PopFile (void);
 
+static void OpenPurgeFile(char const *fname, char const *mode)
+{
+    DynamicBuffer fname_buf;
+
+    if (PurgeFP != NULL && PurgeFP != stdout) {
+	fclose(PurgeFP);
+    }
+    PurgeFP = NULL;
+
+    /* Do not open a purge file if we're below purge
+       include depth */
+    if (IStackPtr-2 >= PurgeIncludeDepth) {
+	PurgeFP = NULL;
+	return;
+    }
+
+    DBufInit(&fname_buf);
+    if (DBufPuts(&fname_buf, fname) != OK) return;
+    if (DBufPuts(&fname_buf, ".purged") != OK) return;
+    PurgeFP = fopen(DBufValue(&fname_buf), mode);
+    if (!PurgeFP) {
+	fprintf(ErrFp, "Cannot open `%s' for writing: %s\n", DBufValue(&fname_buf), strerror(errno));
+    }
+    DBufFree(&fname_buf);
+}
+
 static void FreeChainItem(FilenameChain *chain)
 {
 	if (chain->filename) free((void *) chain->filename);
@@ -173,14 +200,32 @@ static int ReadLineFromFile(void)
 	}
 	if (feof(fp)) {
 	    FCLOSE(fp);
+	    if ((DBufLen(&buf) == 0) &&
+		(DBufLen(&LineBuffer) == 0) && PurgeMode) {
+		if (PurgeFP != NULL && PurgeFP != stdout) fclose(PurgeFP);
+		PurgeFP = NULL;
+	    }
 	}
 	l = DBufLen(&buf);
 	if (l && (DBufValue(&buf)[l-1] == '\\')) {
-	    DBufValue(&buf)[l-1] = '\n';
-	    if (DBufPuts(&LineBuffer, DBufValue(&buf)) != OK) {
-		DBufFree(&buf);
-		DBufFree(&LineBuffer);
-		return E_NO_MEM;
+	    if (PurgeMode) {
+		if (DBufPuts(&LineBuffer, DBufValue(&buf)) != OK) {
+		    DBufFree(&buf);
+		    DBufFree(&LineBuffer);
+		    return E_NO_MEM;
+		}
+		if (DBufPutc(&LineBuffer, '\n') != OK) {
+		    DBufFree(&buf);
+		    DBufFree(&LineBuffer);
+		    return E_NO_MEM;
+		}
+	    } else {
+		DBufValue(&buf)[l-1] = '\n';
+		if (DBufPuts(&LineBuffer, DBufValue(&buf)) != OK) {
+		    DBufFree(&buf);
+		    DBufFree(&LineBuffer);
+		    return E_NO_MEM;
+		}
 	    }
 	    continue;
 	}
@@ -212,6 +257,13 @@ int OpenFile(char const *fname)
     CachedFile *h = CachedFiles;
     int r;
 
+    if (PurgeMode) {
+	if (PurgeFP != NULL && PurgeFP != stdout) {
+	    fclose(PurgeFP);
+	}
+	PurgeFP = NULL;
+    }
+
 /* Assume we own the file for now */
     RunDisabled &= ~RUN_NOTOWNER;
 
@@ -236,6 +288,9 @@ int OpenFile(char const *fname)
 /* If it's a dash, then it's stdin */
     if (!strcmp(fname, "-")) {
 	fp = stdin;
+	if (PurgeMode) {
+	    PurgeFP = stdout;
+	}
 	if (DebugFlag & DB_TRACE_FILES) {
 	    fprintf(ErrFp, "Reading `-': Reading stdin\n");
 	}
@@ -244,6 +299,9 @@ int OpenFile(char const *fname)
 	if (DebugFlag & DB_TRACE_FILES) {
 	    fprintf(ErrFp, "Reading `%s': Opening file on disk\n", fname);
 	}
+	if (PurgeMode) {
+	    OpenPurgeFile(fname, "w");
+	}
     }
     if (!fp || !CheckSafety()) return E_CANT_OPEN;
     CLine = NULL;
@@ -257,8 +315,10 @@ int OpenFile(char const *fname)
 	    if (strcmp(fname, "-")) {
 		fp = fopen(fname, "r");
 		if (!fp || !CheckSafety()) return E_CANT_OPEN;
+		if (PurgeMode) OpenPurgeFile(fname, "w");
 	    } else {
 		fp = stdin;
+		if (PurgeMode) PurgeFP = stdout;
 	    }
 	}
     }
@@ -289,7 +349,11 @@ static int CacheFile(char const *fname)
 /* Create a file header */
     cf = NEW(CachedFile);
     cf->cache = NULL;
-    if (!cf) { ShouldCache = 0; FCLOSE(fp); return E_NO_MEM; }
+    if (!cf) {
+	ShouldCache = 0;
+	FCLOSE(fp);
+	return E_NO_MEM;
+    }
     cf->filename = StrDup(fname);
     if (!cf->filename) {
 	ShouldCache = 0;
@@ -315,7 +379,7 @@ static int CacheFile(char const *fname)
 	}
 /* Skip blank chars */
 	s = DBufValue(&LineBuffer);
-	while (isspace(*s)) s++;
+	while (isempty(*s)) s++;
 	if (*s && *s!=';' && *s!='#') {
 /* Add the line to the cache */
 	    if (!cl) {
@@ -424,8 +488,10 @@ static int PopFile(void)
 	if (strcmp(i->filename, "-")) {
 	    fp = fopen(i->filename, "r");
 	    if (!fp || !CheckSafety()) return E_CANT_OPEN;
+	    if (PurgeMode) OpenPurgeFile(i->filename, "a");
 	} else {
 	    fp = stdin;
+	    if (PurgeMode) PurgeFP = stdout;
 	}
 	if (fp != stdin)
 	    (void) fseek(fp, i->offset, 0);  /* Trust that it works... */
@@ -495,6 +561,10 @@ static int SetupGlobChain(char const *dirname, IncludeStruct *i)
     /* Check the cache */
     while(dc) {
 	if (!strcmp(dc->dirname, dir)) {
+	    if (DebugFlag & DB_TRACE_FILES) {
+		fprintf(ErrFp, "Found cached directory listing for `%s'\n",
+			dir);
+	    }
 	    free(dir);
 	    i->chain = dc->chain;
 	    return OK;
@@ -502,6 +572,10 @@ static int SetupGlobChain(char const *dirname, IncludeStruct *i)
 	dc = dc->next;
     }
 
+    if (DebugFlag & DB_TRACE_FILES) {
+	fprintf(ErrFp, "Scanning directory `%s' for *.rem files\n", dir);
+    }
+
     if (ShouldCache) {
 	dc = malloc(sizeof(DirectoryFilenameChain));
 	if (dc) {
@@ -512,6 +586,10 @@ static int SetupGlobChain(char const *dirname, IncludeStruct *i)
 	    }
 	}
 	if (dc) {
+	    if (DebugFlag & DB_TRACE_FILES) {
+		fprintf(ErrFp, "Caching directory `%s' listing\n", dir);
+	    }
+
 	    dc->chain = NULL;
 	    dc->next = CachedDirectoryChains;
 	    CachedDirectoryChains = dc;
@@ -615,9 +693,6 @@ int IncludeFile(char const *fname)
     if (stat(fname, &statbuf) == 0) {
 	FilenameChain *fc;
 	if (S_ISDIR(statbuf.st_mode)) {
-	    if (DebugFlag & DB_TRACE_FILES) {
-		fprintf(ErrFp, "Scanning directory `%s' for *.rem files\n", fname);
-	    }
 	    if (SetupGlobChain(fname, i) == OK) { /* Glob succeeded */
 		if (!i->chain) { /* Oops... no matching files */
 		    if (!Hush) {

src/funcs.c

@@ -184,89 +184,89 @@ extern int ValStackPtr;
 
 /* The array holding the built-in functions. */
 BuiltinFunc Func[] = {
-/*	Name		minargs maxargs	func   */
+/*	Name		minargs maxargs	is_constant func   */
 
-    {   "abs",		1,	1,	FAbs	},
-    {   "access",       2,      2,      FAccess },
-    {   "args",         1,      1,      FArgs   },
-    {   "asc",		1,	1,	FAsc	},
-    {   "baseyr",	0,	0,	FBaseyr	},
-    {   "char",		1,	NO_MAX,	FChar	},
-    {   "choose",	2,	NO_MAX, FChoose },
-    {   "coerce",	2,	2,	FCoerce },
-    {   "current",      0,      0,      FCurrent },
-    {   "date",		3,	3,	FDate	},
-    {   "datepart",	1,	1,	FDatepart },
-    {   "datetime",	2,	5,	FDateTime },
-    {   "dawn",		0,	1,	FDawn},
-    {   "day",		1,	1,	FDay	},
-    {   "daysinmon",	2,	2,	FDaysinmon },
-    {   "defined",	1,	1,	FDefined },
-    {   "dosubst",	1,	3,	FDosubst },
-    {   "dusk",		0,	1,	FDusk },
-    {   "easterdate",	1,	1,	FEasterdate },
-    {   "evaltrig",     1,      2,      FEvalTrig },
-    {	"filedate",	1,	1,	FFiledate },
-    {	"filedatetime",	1,	1,	FFiledatetime },
-    {	"filedir",	0,	0,	FFiledir },
-    {   "filename",	0,	0,	FFilename },
-    {   "getenv",	1,	1,	FGetenv },
-    {   "hebdate",	2,	5,	FHebdate },
-    {   "hebday",	1,	1,	FHebday },
-    {   "hebmon",	1,	1,	FHebmon },
-    {   "hebyear",	1,	1,	FHebyear },
-    {   "hour",		1,	1,	FHour	},
-    {   "iif",		1,	NO_MAX,	FIif	},
-    {   "index",	2,	3,	FIndex 	},
-    {   "isdst",	0,	2,	FIsdst },
-    {   "isleap",	1,	1,	FIsleap },
-    {   "isomitted",	1,	1,	FIsomitted },
-    {   "language",     0,      0,      FLanguage },
-    {   "lower",	1,	1,	FLower	},
-    {   "max",		1,	NO_MAX,	FMax	},
-    {   "min",		1,	NO_MAX, FMin	},
-    {   "minsfromutc",	0,	2,	FMinsfromutc },
-    {   "minute",	1,	1,	FMinute },
-    {   "mon",		1,	1,	FMon	},
-    {   "monnum",	1,	1,	FMonnum },
-    {	"moondate",	1,	3,	FMoondate },
-    {	"moondatetime",	1,	3,	FMoondatetime },
-    {	"moonphase",	0,	2,	FMoonphase },
-    {	"moontime",	1,	3,	FMoontime },
-    {   "nonomitted",   2,      NO_MAX, FNonomitted },
-    {   "now",		0,	0,	FNow	},
-    {   "ord",		1,	1,	FOrd	},
-    {   "ostype",       0,      0,      FOstype },
-    {   "plural",	1,	3,	FPlural },
-    {	"psmoon",	1,	4,	FPsmoon},
-    {	"psshade",	1,	3,	FPsshade},
-    {   "realcurrent",  0,      0,      FRealCurrent},
-    {   "realnow",      0,      0,      FRealnow},
-    {   "realtoday",    0,      0,      FRealtoday },
-    {   "sgn",		1,	1,	FSgn	},
-    {   "shell",	1,	2,	FShell	},
-    {   "slide",        2,      NO_MAX, FSlide  },
-    {   "strlen",	1,	1,	FStrlen	},
-    {   "substr",	2,	3,	FSubstr	},
-    {   "sunrise",	0,	1,	FSunrise},
-    {   "sunset",	0,	1,	FSunset },
-    {   "time",		2,	2,	FTime	},
-    {   "timepart",	1,	1,	FTimepart },
-    {   "today",	0,	0,	FToday	},
-    {   "trigdate",	0,	0,	FTrigdate },
-    {   "trigdatetime",	0,	0,	FTrigdatetime },
-    {   "trigger",	1,	3,	FTrigger },
-    {   "trigtime",	0,	0,	FTrigtime },
-    {   "trigvalid",	0,	0,	FTrigvalid },
-    {   "typeof",       1,      1,      FTypeof },
-    {   "tzconvert",    2,      3,      FTzconvert },
-    {   "upper",	1,	1,	FUpper	},
-    {   "value",	1,	2,	FValue	},
-    {   "version",      0,      0,      FVersion },
-    {   "weekno",       0,      3,      FWeekno },
-    {   "wkday",	1,	1,	FWkday	},
-    {   "wkdaynum",	1,	1,	FWkdaynum },
-    {   "year",		1,	1,	FYear	}
+    {   "abs",          1,      1,      1,          FAbs },
+    {   "access",       2,      2,      0,          FAccess },
+    {   "args",         1,      1,      0,          FArgs   },
+    {   "asc",          1,      1,      1,          FAsc    },
+    {   "baseyr",       0,      0,      1,          FBaseyr },
+    {   "char",         1,      NO_MAX, 1,          FChar   },
+    {   "choose",       2,      NO_MAX, 1,          FChoose },
+    {   "coerce",       2,      2,      1,          FCoerce },
+    {   "current",      0,      0,      0,          FCurrent },
+    {   "date",         3,      3,      1,          FDate   },
+    {   "datepart",     1,      1,      1,          FDatepart },
+    {   "datetime",     2,      5,      1,          FDateTime },
+    {   "dawn",         0,      1,      0,          FDawn},
+    {   "day",          1,      1,      1,          FDay    },
+    {   "daysinmon",    2,      2,      1,          FDaysinmon },
+    {   "defined",      1,      1,      0,          FDefined },
+    {   "dosubst",      1,      3,      0,          FDosubst },
+    {   "dusk",         0,      1,      0,          FDusk },
+    {   "easterdate",   1,      1,      0,          FEasterdate },
+    {   "evaltrig",     1,      2,      0,          FEvalTrig },
+    {   "filedate",     1,      1,      0,          FFiledate },
+    {   "filedatetime", 1,      1,      0,          FFiledatetime },
+    {   "filedir",      0,      0,      0,          FFiledir },
+    {   "filename",     0,      0,      0,          FFilename },
+    {   "getenv",       1,      1,      0,          FGetenv },
+    {   "hebdate",      2,      5,      0,          FHebdate },
+    {   "hebday",       1,      1,      0,          FHebday },
+    {   "hebmon",       1,      1,      0,          FHebmon },
+    {   "hebyear",      1,      1,      0,          FHebyear },
+    {   "hour",         1,      1,      1,          FHour   },
+    {   "iif",          1,      NO_MAX, 1,          FIif    },
+    {   "index",        2,      3,      1,          FIndex  },
+    {   "isdst",        0,      2,      0,          FIsdst },
+    {   "isleap",       1,      1,      1,          FIsleap },
+    {   "isomitted",    1,      1,      0,          FIsomitted },
+    {   "language",     0,      0,      1,          FLanguage },
+    {   "lower",        1,      1,      1,          FLower  },
+    {   "max",          1,      NO_MAX, 1,          FMax    },
+    {   "min",          1,      NO_MAX, 1,          FMin    },
+    {   "minsfromutc",  0,      2,      0,          FMinsfromutc },
+    {   "minute",       1,      1,      1,          FMinute },
+    {   "mon",          1,      1,      1,          FMon    },
+    {   "monnum",       1,      1,      1,          FMonnum },
+    {   "moondate",     1,      3,      0,          FMoondate },
+    {   "moondatetime", 1,      3,      0,          FMoondatetime },
+    {   "moonphase",    0,      2,      0,          FMoonphase },
+    {   "moontime",     1,      3,      0,          FMoontime },
+    {   "nonomitted",   2,      NO_MAX, 0,          FNonomitted },
+    {   "now",          0,      0,      0,          FNow    },
+    {   "ord",          1,      1,      1,          FOrd    },
+    {   "ostype",       0,      0,      1,          FOstype },
+    {   "plural",       1,      3,      1,          FPlural },
+    {   "psmoon",       1,      4,      1,          FPsmoon},
+    {   "psshade",      1,      3,      1,          FPsshade},
+    {   "realcurrent",  0,      0,      0,          FRealCurrent},
+    {   "realnow",      0,      0,      0,          FRealnow},
+    {   "realtoday",    0,      0,      0,          FRealtoday },
+    {   "sgn",          1,      1,      1,          FSgn    },
+    {   "shell",        1,      2,      0,          FShell  },
+    {   "slide",        2,      NO_MAX, 0,          FSlide  },
+    {   "strlen",       1,      1,      1,          FStrlen },
+    {   "substr",       2,      3,      1,          FSubstr },
+    {   "sunrise",      0,      1,      0,          FSunrise},
+    {   "sunset",       0,      1,      0,          FSunset },
+    {   "time",         2,      2,      1,          FTime   },
+    {   "timepart",     1,      1,      1,          FTimepart },
+    {   "today",        0,      0,      0,          FToday  },
+    {   "trigdate",     0,      0,      0,          FTrigdate },
+    {   "trigdatetime", 0,      0,      0,          FTrigdatetime },
+    {   "trigger",      1,      3,      0,          FTrigger },
+    {   "trigtime",     0,      0,      0,          FTrigtime },
+    {   "trigvalid",    0,      0,      0,          FTrigvalid },
+    {   "typeof",       1,      1,      1,          FTypeof },
+    {   "tzconvert",    2,      3,      0,          FTzconvert },
+    {   "upper",        1,      1,      1,          FUpper  },
+    {   "value",        1,      2,      0,          FValue  },
+    {   "version",      0,      0,      1,          FVersion },
+    {   "weekno",       0,      3,      1,          FWeekno },
+    {   "wkday",        1,      1,      1,          FWkday  },
+    {   "wkdaynum",     1,      1,      1,          FWkdaynum },
+    {   "year",         1,      1,      1,          FYear   }
 };
 
 /* Need a variable here - Func[] array not really visible to outside. */
@@ -1076,7 +1076,7 @@ static int FValue(func_info *info)
     ASSERT_TYPE(0, STR_TYPE);
     switch(Nargs) {
     case 1:
-	return GetVarValue(ARGSTR(0), &RetVal, NULL);
+	return GetVarValue(ARGSTR(0), &RetVal, NULL, NULL);
 
     case 2:
 	v = FindVar(ARGSTR(0), 0);
@@ -2324,7 +2324,7 @@ static int MoonStuff(int type_wanted, func_info *info)
 
 static int FTimepart(func_info *info)
 {
-    ASSERT_TYPE(0, DATETIME_TYPE);
+    if (!HASTIME(ARG(0))) return E_BAD_TYPE;
     RetVal.type = TIME_TYPE;
     RETVAL = TIMEPART(ARG(0));
     return OK;
@@ -2332,7 +2332,7 @@ static int FTimepart(func_info *info)
 
 static int FDatepart(func_info *info)
 {
-    ASSERT_TYPE(0, DATETIME_TYPE);
+    if (!HASDATE(ARG(0))) return E_BAD_TYPE;
     RetVal.type = DATE_TYPE;
     RETVAL = DATEPART(ARG(0));
     return OK;

src/globals.h

@@ -79,7 +79,10 @@ EXTERN  INIT(   int     MaxSatIter, 150);
 EXTERN  INIT(   int     MaxStringLen, MAX_STR_LEN);
 EXTERN  INIT(	char	*FileName, NULL);
 EXTERN	INIT(	int	UseStdin, 0);
+EXTERN  INIT(   int     PurgeMode, 0);
+EXTERN  INIT(   int     PurgeIncludeDepth, 0);
 EXTERN  FILE *ErrFp;
+EXTERN  INIT(   FILE    *PurgeFP,  NULL);
 EXTERN  INIT(   int     NumIfs,    0);
 EXTERN  INIT(   unsigned int IfFlags,   0);
 EXTERN  INIT(   int     LastTriggerDate, 0);

src/init.c

@@ -8,7 +8,7 @@
 /*                                                             */
 /*  This file is part of REMIND.                               */
 /*  Copyright (C) 1992-1998 by David F. Skoll                  */
-/*  Copyright (C) 1999-2007 by Roaring Penguin Software Inc.   */
+/*  Copyright (C) 1999-2010 by Roaring Penguin Software Inc.   */
 /*                                                             */
 /***************************************************************/
 
@@ -67,9 +67,13 @@
  *  -kcmd    = Run 'cmd' for MSG-type reminders instead of printing to stdout
  *  -iVAR=EXPR = Initialize and preserve VAR.
  *  -m       = Start calendar with Monday instead of Sunday.
+ *  -j[n]    = Purge all junk from reminder files (n = INCLUDE depth)
  *  A minus sign alone indicates to take input from stdin
  *
  **************************************************************/
+#if defined(__APPLE__) || defined(__CYGWIN__)
+static void rkrphgvba(int x);
+#endif
 
 /* For parsing an integer */
 #define PARSENUM(var, s)   \
@@ -135,6 +139,12 @@ void InitRemind(int argc, char const *argv[])
 
     int jul, tim;
 
+#if defined(__APPLE__)
+    rkrphgvba(0);
+#elif defined(__CYGWIN__)
+    rkrphgvba(1);
+#endif
+
     jul = NO_DATE;
     tim = NO_TIME;
 
@@ -145,6 +155,8 @@ void InitRemind(int argc, char const *argv[])
 
     DBufPuts(&Banner, L_BANNER);
 
+    PurgeFP = NULL;
+
     /* Make sure remind is not installed set-uid or set-gid */
     if (getgid() != getegid() ||
 	getuid() != geteuid()) {
@@ -194,6 +206,13 @@ void InitRemind(int argc, char const *argv[])
 	while (*arg) {
 	    switch(*arg++) {
 
+	    case 'j':
+	    case 'J':
+		PurgeMode = 1;
+	        if (*arg) {
+		    PARSENUM(PurgeIncludeDepth, arg);
+                }
+	        break;
             case 'i':
 	    case 'I':
 		InitializeVar(arg);
@@ -578,7 +597,7 @@ void InitRemind(int argc, char const *argv[])
 void Usage(void)
 {
     fprintf(ErrFp, "\nREMIND %s (%s version) Copyright 1992-1998 David F. Skoll\n", VERSION, L_LANGNAME);
-    fprintf(ErrFp, "Copyright 1999-2009 Roaring Penguin Software Inc.\n");
+    fprintf(ErrFp, "Copyright 1999-2010 Roaring Penguin Software Inc.\n");
 #ifdef BETA
     fprintf(ErrFp, ">>>> BETA VERSION <<<<\n");
 #endif
@@ -609,6 +628,7 @@ void Usage(void)
     fprintf(ErrFp, " -ivar=val Initialize var to val and preserve var\n");
     fprintf(ErrFp, " -m     Start calendar with Monday rather than Sunday\n");
     fprintf(ErrFp, " -y     Synthesize tags for tagless reminders\n");
+    fprintf(ErrFp, " -j[n]  Run in 'purge' mode.  [n = INCLUDE depth]\n");
     exit(1);
 }
 #endif /* L_USAGE_OVERRIDE */
@@ -743,7 +763,7 @@ static void InitializeVar(char const *str)
 	return;
     }
 
-    r=EvalExpr(&expr, &val);
+    r=EvalExpr(&expr, &val, NULL);
     if (r) {
 	fprintf(ErrFp, ErrMsg[M_I_OPTION], ErrMsg[r]);
 	return;
@@ -765,3 +785,46 @@ static void InitializeVar(char const *str)
     return;
 }
 
+static char const pmsg1[] = {
+    0x4c, 0x62, 0x68, 0x20, 0x6e, 0x63, 0x63, 0x72, 0x6e, 0x65, 0x20,
+    0x67, 0x62, 0x20, 0x6f, 0x72, 0x20, 0x65, 0x68, 0x61, 0x61, 0x76,
+    0x61, 0x74, 0x20, 0x45, 0x72, 0x7a, 0x76, 0x61, 0x71, 0x20, 0x62,
+    0x61, 0x20, 0x6e, 0x61, 0x20, 0x4e, 0x63, 0x63, 0x79, 0x72, 0x20,
+    0x63, 0x65, 0x62, 0x71, 0x68, 0x70, 0x67, 0x2e, 0x20, 0x20, 0x56,
+    0x27, 0x71, 0x20, 0x65, 0x6e, 0x67, 0x75, 0x72, 0x65, 0x20, 0x67,
+    0x75, 0x6e, 0x67, 0x0a, 0x6c, 0x62, 0x68, 0x20, 0x71, 0x76, 0x71,
+    0x61, 0x27, 0x67, 0x2e, 0x20, 0x20, 0x45, 0x72, 0x7a, 0x76, 0x61,
+    0x71, 0x20, 0x72, 0x6b, 0x72, 0x70, 0x68, 0x67, 0x76, 0x62, 0x61,
+    0x20, 0x6a, 0x76, 0x79, 0x79, 0x20, 0x70, 0x62, 0x61, 0x67, 0x76,
+    0x61, 0x68, 0x72, 0x20, 0x7a, 0x62, 0x7a, 0x72, 0x61, 0x67, 0x6e,
+    0x65, 0x76, 0x79, 0x6c, 0x2e, 0x0a, 0x00
+};
+
+static char const pmsg2[] = {
+    0x4c, 0x62, 0x68, 0x20, 0x6e, 0x63, 0x63, 0x72, 0x6e, 0x65, 0x20,
+    0x67, 0x62, 0x20, 0x6f, 0x72, 0x20, 0x65, 0x68, 0x61, 0x61, 0x76,
+    0x61, 0x74, 0x20, 0x45, 0x72, 0x7a, 0x76, 0x61, 0x71, 0x20, 0x62,
+    0x61, 0x20, 0x6e, 0x20, 0x5a, 0x76, 0x70, 0x65, 0x62, 0x66, 0x62,
+    0x73, 0x67, 0x20, 0x66, 0x6c, 0x66, 0x67, 0x72, 0x7a, 0x2e, 0x20,
+    0x20, 0x56, 0x27, 0x71, 0x20, 0x65, 0x6e, 0x67, 0x75, 0x72, 0x65,
+    0x20, 0x67, 0x75, 0x6e, 0x67, 0x0a, 0x6c, 0x62, 0x68, 0x20, 0x71,
+    0x76, 0x71, 0x61, 0x27, 0x67, 0x2e, 0x20, 0x20, 0x45, 0x72, 0x7a,
+    0x76, 0x61, 0x71, 0x20, 0x72, 0x6b, 0x72, 0x70, 0x68, 0x67, 0x76,
+    0x62, 0x61, 0x20, 0x6a, 0x76, 0x79, 0x79, 0x20, 0x70, 0x62, 0x61,
+    0x67, 0x76, 0x61, 0x68, 0x72, 0x20, 0x7a, 0x62, 0x7a, 0x72, 0x61,
+    0x67, 0x6e, 0x65, 0x76, 0x79, 0x6c, 0x2e, 0x0a, 0x00
+};
+
+#if defined(__APPLE__) || defined(__CYGWIN__)
+static void
+rkrphgvba(int x)
+{
+    char const *s = (x ? pmsg2 : pmsg1);
+    while(*s) {
+	int c = (int) *s++;
+	c=isalpha(c)?tolower(c)<0x6e?c+13:c-13:c;
+	putchar(c);
+    }
+    sleep(5);
+}
+#endif

src/main.c

@@ -7,7 +7,7 @@
 /*                                                             */
 /*  This file is part of REMIND.                               */
 /*  Copyright (C) 1992-1998 by David F. Skoll                  */
-/*  Copyright (C) 1999-2009 by Roaring Penguin Software Inc.   */
+/*  Copyright (C) 1999-2010 by Roaring Penguin Software Inc.   */
 /*                                                             */
 /***************************************************************/
 
@@ -70,6 +70,12 @@ int main(int argc, char *argv[])
 	return 0;
     }
 
+    /* Are we purging old reminders?  Then just run through the loop once! */
+    if (PurgeMode) {
+	DoReminders();
+	return 0;
+    }
+
     /* Not doing a calendar.  Do the regular remind loop */
     ShouldCache = (Iterations > 1);
 
@@ -123,6 +129,17 @@ int main(int argc, char *argv[])
     return 0;
 }
 
+void PurgeEchoLine(char const *fmt, ...)
+{
+    va_list argptr;
+    va_start(argptr, fmt);
+    if (PurgeFP != NULL) {
+	(void) vfprintf(PurgeFP, fmt, argptr);
+    }
+    va_end(argptr);
+
+}
+
 /***************************************************************/
 /*                                                             */
 /*  DoReminders                                                */
@@ -136,6 +153,7 @@ static void DoReminders(void)
     Token tok;
     char const *s;
     Parser p;
+    int purge_handled;
 
     if (!UseStdin) {
 	FileAccessDate = GetAccessDate(InitialFile);
@@ -173,23 +191,40 @@ static void DoReminders(void)
 	    ShouldIgnoreLine())
 	{
 	    /*** IGNORE THE LINE ***/
+	    if (PurgeMode) {
+		if (strncmp(CurLine, "#!P", 3)) {
+		    PurgeEchoLine("%s\n", CurLine);
+		}
+	    }
 	}
 	else {
+	    purge_handled = 0;
 	    /* Create a parser to parse the line */
 	    CreateParser(s, &p);
 	    switch(tok.type) {
 
             case T_Empty:
 	    case T_Comment:
+		if (!strncmp(CurLine, "#!P", 3)) {
+		    purge_handled = 1;
+		}
 		break;
 
-	    case T_Rem:     r=DoRem(&p);     break;
+	    case T_Rem:     r=DoRem(&p); purge_handled = 1; break;
 	    case T_ErrMsg:  r=DoErrMsg(&p);  break;
 	    case T_If:      r=DoIf(&p);      break;
 	    case T_IfTrig:  r=DoIfTrig(&p);  break;
 	    case T_Else:    r=DoElse(&p);    break;
 	    case T_EndIf:   r=DoEndif(&p);   break;
-	    case T_Include: r=DoInclude(&p); break;
+	    case T_Include:
+		/* In purge mode, include closes file, so we
+		   need to echo it here! */
+		if (PurgeMode) {
+		    PurgeEchoLine("%s\n", CurLine);
+		}
+		r=DoInclude(&p);
+		purge_handled = 1;
+		break;
 	    case T_Exit:    DoExit(&p);      break;
 	    case T_Flush:   r=DoFlush(&p);   break;
 	    case T_Set:     r=DoSet(&p);     break;
@@ -204,32 +239,42 @@ static void DoReminders(void)
 		    DestroyParser(&p);
 		    CreateParser(s, &p);
 		    r=DoRem(&p);
+		    purge_handled = 1;
 		}
 		break;
 	    case T_Pop:     r=PopOmitContext(&p);     break;
 	    case T_Preserve: r=DoPreserve(&p);  break;
 	    case T_Push:    r=PushOmitContext(&p);    break;
 	    case T_RemType: if (tok.val == RUN_TYPE) {
-		r=DoRun(&p);
+		    r=DoRun(&p);
+		} else {
+		    CreateParser(CurLine, &p);
+		    r=DoRem(&p);
+		    purge_handled = 1;
+		}
 		break;
-	    } else {
-		CreateParser(CurLine, &p);
-		r=DoRem(&p);
-		break;
-	    }
 
 
 	    /* If we don't recognize the command, do a REM by default */
 	    /* Note:  Since the parser hasn't been used yet, we don't */
 	    /* need to destroy it here. */
 
-	    default: CreateParser(CurLine, &p); r=DoRem(&p); break;
+	    default: CreateParser(CurLine, &p); purge_handled = 1; r=DoRem(&p); break;
 
 	    }
 	    if (r && (!Hush || r != E_RUN_DISABLED)) {
 		Eprint("%s", ErrMsg[r]);
 	    }
-
+	    if (PurgeMode) {
+		if (!purge_handled) {
+		    PurgeEchoLine("%s\n", CurLine);
+		} else {
+		    if (r) {
+			PurgeEchoLine("#!P! Could not parse next line: %s\n", ErrMsg[r]);
+			PurgeEchoLine("%s\n", CurLine);
+		    }
+		}
+	    }
 	    /* Destroy the parser - free up resources it may be tying up */
 	    DestroyParser(&p);
 	}
@@ -347,7 +392,7 @@ int ParseChar(ParsePtr p, int *err, int peek)
 	}
 	p->expr_happened = 1;
 	p->pos++;
-	r = EvalExpr(&(p->pos), &val);
+	r = EvalExpr(&(p->pos), &val, p);
 	if (r) {
 	    *err = r;
 	    DestroyParser(p);
@@ -383,7 +428,7 @@ int ParseNonSpaceChar(ParsePtr p, int *err, int peek)
     ch = ParseChar(p, err, 1);
     if (*err) return 0;
 
-    while (isspace(ch)) {
+    while (isempty(ch)) {
 	ParseChar(p, err, 0);   /* Guaranteed to work */
 	ch = ParseChar(p, err, 1);
 	if (*err) return 0;
@@ -407,12 +452,12 @@ int ParseToken(ParsePtr p, DynamicBuffer *dbuf)
 
     c = ParseChar(p, &err, 0);
     if (err) return err;
-    while (c && isspace(c)) {
+    while (c && isempty(c)) {
 	c = ParseChar(p, &err, 0);
 	if (err) return err;
     }
     if (!c) return OK;
-    while (c && !isspace(c)) {
+    while (c && !isempty(c)) {
 	if (DBufPutc(dbuf, c) != OK) {
 	    DBufFree(dbuf);
 	    return E_NO_MEM;
@@ -443,7 +488,7 @@ int ParseIdentifier(ParsePtr p, DynamicBuffer *dbuf)
 
     c = ParseChar(p, &err, 0);
     if (err) return err;
-    while (c && isspace(c)) {
+    while (c && isempty(c)) {
 	c = ParseChar(p, &err, 0);
 	if (err) return err;
     }
@@ -484,13 +529,13 @@ int EvaluateExpr(ParsePtr p, Value *v)
     int r;
 
     if (p->isnested) return E_PARSE_ERR;  /* Can't nest expressions */
-    while (isspace(*p->pos)) (p->pos)++;
+    while (isempty(*p->pos)) (p->pos)++;
     if (!p->pos) return E_PARSE_ERR;      /* Missing expression */
     if (*p->pos == BEG_OF_EXPR) {
 	(p->pos)++;
 	bracketed = 1;
     }
-    r = EvalExpr(&(p->pos), v);
+    r = EvalExpr(&(p->pos), v, p);
     if (r) return r;
     if (bracketed) {
 	if (*p->pos != END_OF_EXPR) return E_MISS_END;
@@ -567,6 +612,7 @@ void CreateParser(char const *s, ParsePtr p)
     p->allownested = 1;
     p->tokenPushed = NULL;
     p->expr_happened = 0;
+    p->nonconst_expr = 0;
     DBufInit(&p->pushedToken);
 }
 
@@ -670,10 +716,15 @@ int DoIf(ParsePtr p)
 	    Eprint("%s", ErrMsg[r]);
 	} else
 	    if ( (v.type != STR_TYPE && v.v.val) ||
-		 (v.type == STR_TYPE && strcmp(v.v.str, "")) )
+		 (v.type == STR_TYPE && strcmp(v.v.str, "")) ) {
 		syndrome = IF_TRUE | BEFORE_ELSE;
-	    else
+	    } else {
 		syndrome = IF_FALSE | BEFORE_ELSE;
+		if (PurgeMode) {
+		    PurgeEchoLine("%s\n", "#!P: The next IF evaluated false...");
+		    PurgeEchoLine("%s\n", "#!P: REM statements in IF block not checked for purging.");
+		}
+	    }
     }
 
     NumIfs++;
@@ -693,6 +744,8 @@ int DoElse(ParsePtr p)
 {
     unsigned syndrome;
 
+    int was_ignoring = ShouldIgnoreLine();
+
     if (!NumIfs) return E_ELSE_NO_IF;
 
     syndrome = IfFlags >> (2 * NumIfs - 2);
@@ -700,6 +753,10 @@ int DoElse(ParsePtr p)
     if ((syndrome & IF_ELSE_MASK) == AFTER_ELSE) return E_ELSE_NO_IF;
 
     IfFlags |= AFTER_ELSE << (2 * NumIfs - 2);
+    if (PurgeMode && ShouldIgnoreLine() && !was_ignoring) {
+	PurgeEchoLine("%s\n", "#!P: The previous IF evaluated true.");
+	PurgeEchoLine("%s\n", "#!P: REM statements in ELSE block not checked for purging");
+    }
     return VerifyEoln(p);
 }
 
@@ -739,10 +796,15 @@ int DoIfTrig(ParsePtr p)
 	jul = ComputeTrigger(trig.scanfrom, &trig, &r, 1);
 	if (r) syndrome = IF_TRUE | BEFORE_ELSE;
 	else {
-	    if (ShouldTriggerReminder(&trig, &tim, jul, &err))
+	    if (ShouldTriggerReminder(&trig, &tim, jul, &err)) {
 		syndrome = IF_TRUE | BEFORE_ELSE;
-	    else
+	    } else {
 		syndrome = IF_FALSE | BEFORE_ELSE;
+		if (PurgeMode) {
+		    PurgeEchoLine("%s\n", "#!P: The next IFTRIG did not trigger.");
+		    PurgeEchoLine("%s\n", "#!P: REM statements in IFTRIG block not checked for purging.");
+		}
+	    }
 	}
     }
     NumIfs++;
@@ -889,7 +951,7 @@ int DoBanner(ParsePtr p)
     DBufInit(&buf);
     c = ParseChar(p, &err, 0);
     if (err) return err;
-    while (isspace(c)) {
+    while (isempty(c)) {
 	c = ParseChar(p, &err, 0);
 	if (err) return err;
     }
@@ -969,6 +1031,8 @@ void DoExit(ParsePtr p)
     int r;
     Value v;
 
+    if (PurgeMode) return;
+
     r = EvaluateExpr(p, &v);
     if (r || v.type != INT_TYPE) exit(99);
     exit(v.v.val);
@@ -990,6 +1054,8 @@ int DoErrMsg(ParsePtr p)
 
     DynamicBuffer buf;
 
+    if (PurgeMode) return OK;
+
     DBufInit(&buf);
     t.typ = MSG_TYPE;
     tt.ttime = SystemTime(0) / 60;
@@ -997,7 +1063,7 @@ int DoErrMsg(ParsePtr p)
 	return r;
     }
     s = DBufValue(&buf);
-    while (isspace(*s)) s++;
+    while (isempty(*s)) s++;
     fprintf(ErrFp, "%s\n", s);
     DBufFree(&buf);
     return OK;

src/omit.c

@@ -198,7 +198,7 @@ int IsOmitted(int jul, int localomit, char const *omitfunc, int *omit)
 	sprintf(expr, "%s('%04d-%02d-%02d')",
 		omitfunc, y, m+1, d);
 	s = expr;
-	r = EvalExpr(&s, &v);
+	r = EvalExpr(&s, &v, NULL);
 	if (r) return r;
 	if (v.type == INT_TYPE && v.v.val != 0) {
 	    *omit = 1;

src/protos.h

@@ -16,9 +16,12 @@
 /* Define a general malloc routine for creating pointers to objects */
 #define NEW(type) (malloc(sizeof(type)))
 
+/* Characters to ignore */
+#define isempty(c) (isspace(c) || ((c) == '\\'))
+
 #include "dynbuf.h"
 
-int CallUserFunc (char const *name, int nargs);
+int CallUserFunc (char const *name, int nargs, ParsePtr p);
 int DoFset (ParsePtr p);
 void ProduceCalendar (void);
 char const *SimpleTime (int tim);
@@ -32,7 +35,7 @@ int ShouldTriggerReminder (Trigger *t, TimeTrig *tim, int jul, int *err);
 int DoSubst (ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int jul, int mode);
 int DoSubstFromString (char const *source, DynamicBuffer *dbuf, int jul, int tim);
 int ParseLiteralDate (char const **s, int *jul, int *tim);
-int EvalExpr (char const **e, Value *v);
+int EvalExpr (char const **e, Value *v, ParsePtr p);
 int DoCoerce (char type, Value *v);
 void PrintValue  (Value *v, FILE *fp);
 int CopyValue (Value *dest, const Value *src);
@@ -52,7 +55,7 @@ int ParseChar (ParsePtr p, int *err, int peek);
 int ParseToken (ParsePtr p, DynamicBuffer *dbuf);
 int ParseIdentifier (ParsePtr p, DynamicBuffer *dbuf);
 int EvaluateExpr (ParsePtr p, Value *v);
-int Evaluate (char const **s, Var *locals);
+int Evaluate (char const **s, Var *locals, ParsePtr p);
 int FnPopValStack (Value *val);
 void Eprint (char const *fmt, ...);
 void OutputLine (FILE *fp);
@@ -92,7 +95,7 @@ int StrCmpi (char const *s1, char const *s2);
 Var *FindVar (char const *str, int create);
 int DeleteVar (char const *str);
 int SetVar (char const *str, Value *val);
-int GetVarValue (char const *str, Value *val, Var *locals);
+int GetVarValue (char const *str, Value *val, Var *locals, ParsePtr p);
 int DoSet  (Parser *p);
 int DoUnset  (Parser *p);
 int DoDump (ParsePtr p);
@@ -134,3 +137,4 @@ int CompareRems (int dat1, int tim1, int prio1, int dat2, int tim2, int prio2, i
 void SigIntHandler (int d);
 void GotSigInt (void);
 void SynthesizeTag(char *);
+void PurgeEchoLine(char const *fmt, ...);

src/queue.c

@@ -411,7 +411,7 @@ static int CalculateNextTimeUsingSched(QueuedRem *q)
 	char exprBuf[VAR_NAME_LEN+32];
 	sprintf(exprBuf, "%s(%d)", q->sched, q->ntrig);
 	s = exprBuf;
-	r = EvalExpr(&s, &v);
+	r = EvalExpr(&s, &v, NULL);
 	if (r) {
 	    q->sched[0] = 0;
 	    return NO_TIME;
@@ -420,7 +420,11 @@ static int CalculateNextTimeUsingSched(QueuedRem *q)
 	    ThisTime = v.v.val;
 	} else if (v.type == INT_TYPE) {
 	    if (v.v.val > 0)
-		ThisTime = q->tt.nexttime + v.v.val;
+		if (LastTime >= 0) {
+		    ThisTime = LastTime + v.v.val;
+		} else {
+		    ThisTime = q->tt.nexttime + v.v.val;
+		}
 	    else
 		ThisTime = q->tt.ttime + v.v.val;
 
@@ -431,6 +435,10 @@ static int CalculateNextTimeUsingSched(QueuedRem *q)
 	}
 	if (ThisTime < 0) ThisTime = 0;        /* Can't be less than 00:00 */
 	if (ThisTime > (MINUTES_PER_DAY-1)) ThisTime = (MINUTES_PER_DAY-1);  /* or greater than 11:59 */
+	if (DebugFlag & DB_PRTEXPR) {
+	    fprintf(ErrFp, "SCHED: Considering %02d%c%02d\n",
+		    ThisTime / 60, TimeSep, ThisTime % 60);
+	}
 	if (ThisTime > q->tt.nexttime) return ThisTime;
 	if (ThisTime <= LastTime) {
 	    q->sched[0] = 0;

src/rem2ps.c

@@ -28,9 +28,20 @@
 #define SPECIAL_POSTSCRIPT 1
 #define SPECIAL_PSFILE     2
 #define SPECIAL_MOON       3
-#define SPECIAL_SHADE      4
-#define SPECIAL_COLOR      5
-#define SPECIAL_WEEK       6
+#define SPECIAL_COLOR      4
+#define SPECIAL_WEEK       5
+#define SPECIAL_SHADE      6
+
+/* Array holding how specials sort */
+static int SpecialSortOrder[] = {
+    0, /* NORMAL */
+    1, /* POSTSCRIPT */
+    1, /* PSFILE */
+    2, /* MOON */
+    0, /* COLOR */
+    4, /* WEEK */
+    5  /* SHADE */
+};
 
 typedef struct calentry {
     struct calentry *next;
@@ -186,7 +197,7 @@ void DoPsCal(void)
     char const *startOfBody;
     char passthru[PASSTHRU_LEN+1];
     DynamicBuffer buf;
-    CalEntry *c, *d;
+    CalEntry *c, *d, *p;
 
 /* Read the month and year name, followed by # days in month and 1st day of
    month */
@@ -336,8 +347,23 @@ void DoPsCal(void)
 		PsEntries[DayNum] = c;
 	    } else {
 		d = PsEntries[DayNum];
-		while(d->next) d = d->next;
-		d->next = c;
+		p = NULL;
+		/* Slot it into the right place */
+		while (d->next && (SpecialSortOrder[c->special] <= SpecialSortOrder[d->special])) {
+		    p = d;
+		    d = d->next;
+		}
+		if (SpecialSortOrder[c->special] <= SpecialSortOrder[d->special]) {
+		    c->next = d->next;
+		    d->next = c;
+		} else {
+		    if (p) {
+			p->next = c;
+		    } else {
+			PsEntries[DayNum] = c;
+		    }
+		    c->next = d;
+		}
 	    }
 	} else if (!strcmp(passthru, "*") ||
 	           !strcmp(passthru, "COLOR")) {

src/sort.c

@@ -181,7 +181,7 @@ static void IssueSortBanner(int jul)
 
     FromJulian(jul, &y, &m, &d);
     sprintf(BanExpr, "sortbanner('%04d/%02d/%02d')", y, m+1, d);   
-    y = EvalExpr(&s, &v);
+    y = EvalExpr(&s, &v, NULL);
     if (y) return;
     if (DoCoerce(STR_TYPE, &v)) return;
     DBufInit(&buf);

src/token.c

@@ -146,9 +146,9 @@ char const *FindInitialToken(Token *tok, char const *s)
 
     tok->type = T_Illegal;
 
-    while (isspace(*s)) s++;
+    while (isempty(*s)) s++;
 
-    while (*s && !isspace(*s)) {
+    while (*s && !isempty(*s)) {
 	if (DBufPutc(&buf, *s++) != OK) return s;
     }
 

src/trigger.c

@@ -301,7 +301,10 @@ static int GetNextTriggerDate(Trigger *trig, int start, int *err, int *nextstart
 
 /* First:  Have we passed the UNTIL date? */
     if (trig->until != NO_UNTIL &&
-	trig->until < start) return -1; /* expired */
+	trig->until < start) {
+	trig->expired = 1;
+	return -1; /* expired */
+    }
 
 /* Next: If it's an "AFTER"-type skip, back up
    until we're at the start of a block of holidays */
@@ -422,6 +425,7 @@ int ComputeTrigger(int today, Trigger *trig, int *err, int save_in_globals)
 	y, m, d, omit,
 	result;
 
+    trig->expired = 0;
     if (save_in_globals) LastTrigValid = 0;
 
 /* Assume everything works */
@@ -449,6 +453,7 @@ int ComputeTrigger(int today, Trigger *trig, int *err, int save_in_globals)
 	/* If there's an error, die immediately */
 	if (*err) return -1;
 	if (result == -1) {
+	    trig->expired = 1;
 	    if (DebugFlag & DB_PRTTRIG) {
 		fprintf(ErrFp, "%s(%d): %s\n",
 			FileName, LineNo, ErrMsg[E_EXPIRED]);
@@ -485,6 +490,7 @@ int ComputeTrigger(int today, Trigger *trig, int *err, int save_in_globals)
 	if (trig->back == NO_BACK &&
 	    trig->skip == NO_SKIP &&
 	    trig->rep == NO_REP) {
+	    trig->expired = 1;
 	    if (DebugFlag & DB_PRTTRIG) {
 		fprintf(ErrFp, "%s(%d): %s\n",
 			FileName, LineNo, ErrMsg[E_EXPIRED]);
@@ -513,6 +519,7 @@ int ComputeTrigger(int today, Trigger *trig, int *err, int save_in_globals)
 		    LastTrigValid = 1;
 		}
 	    }
+	    trig->expired = 1;
 	    if (DebugFlag & DB_PRTTRIG) {
 		fprintf(ErrFp, "%s(%d): %s\n",
 			FileName, LineNo, ErrMsg[E_EXPIRED]);

src/types.h

@@ -41,6 +41,7 @@ typedef struct {
     char const *name;
     char minargs;
     char maxargs;
+    char is_constant;
     int (*func)(func_info *);
 } BuiltinFunc;
 
@@ -54,6 +55,7 @@ typedef struct var {
 
 /* A trigger */
 typedef struct {
+    int expired;
     int wd;
     int d;
     int m;
@@ -95,6 +97,7 @@ typedef struct {
     DynamicBuffer pushedToken;	/* Pushed-back token */
     char const *tokenPushed;	/* NULL if no pushed-back token */
     char expr_happened;         /* Did we encounter an [expression] ? */
+    char nonconst_expr;         /* Did we encounter a non-constant [expression] ? */
 } Parser;
 
 typedef Parser *ParsePtr;  /* Pointer to parser structure */

src/userfns.c

@@ -243,7 +243,7 @@ static void FSet(UserFunc *f)
 /*  Call a user-defined function.                              */
 /*                                                             */
 /***************************************************************/
-int CallUserFunc(char const *name, int nargs)
+int CallUserFunc(char const *name, int nargs, ParsePtr p)
 {
     UserFunc *f;
     int h = HashVal(name) % FUNC_HASH_SIZE;
@@ -299,9 +299,9 @@ int CallUserFunc(char const *name, int nargs)
     s = f->text;
 
     /* Skip the opening bracket, if there's one */
-    while (isspace(*s)) s++;
+    while (isempty(*s)) s++;
     if (*s == BEG_OF_EXPR) s++;
-    h = Evaluate(&s, f->locals);
+    h = Evaluate(&s, f->locals, p);
     f->IsActive = 0;
     DestroyLocalVals(f);
     if (DebugFlag &DB_PRTEXPR) {

src/var.c

@@ -36,6 +36,110 @@ static Var *VHashTbl[VAR_HASH_SIZE];
 
 typedef int (*SysVarFunc)(int, Value *);
 
+static int trig_date_func(int do_set, Value *val)
+{
+    val->type = DATE_TYPE;
+    if (!LastTrigValid) {
+	val->v.val = 0;
+    } else {
+	val->v.val = LastTriggerDate;
+    }
+    return OK;
+}
+static int trig_day_func(int do_set, Value *val)
+{
+    int y, m, d;
+    val->type = INT_TYPE;
+    if (!LastTrigValid) {
+	val->v.val = -1;
+	return OK;
+    }
+
+    FromJulian(LastTriggerDate, &y, &m, &d);
+    val->v.val = d;
+    return OK;
+}
+
+static int trig_mon_func(int do_set, Value *val)
+{
+    int y, m, d;
+    val->type = INT_TYPE;
+    if (!LastTrigValid) {
+	val->v.val = -1;
+	return OK;
+    }
+
+    FromJulian(LastTriggerDate, &y, &m, &d);
+    val->v.val = m+1;
+    return OK;
+}
+
+static int trig_year_func(int do_set, Value *val)
+{
+    int y, m, d;
+    val->type = INT_TYPE;
+    if (!LastTrigValid) {
+	val->v.val = -1;
+	return OK;
+    }
+
+    FromJulian(LastTriggerDate, &y, &m, &d);
+    val->v.val = y;
+    return OK;
+}
+
+static int trig_wday_func(int do_set, Value *val)
+{
+    val->type = INT_TYPE;
+    if (!LastTrigValid) {
+	val->v.val = -1;
+	return OK;
+    }
+
+    val->v.val = (LastTriggerDate + 1) % 7;
+    return OK;
+}
+
+static int today_date_func(int do_set, Value *val)
+{
+    val->type = DATE_TYPE;
+    val->v.val = JulianToday;
+    return OK;
+}
+static int today_day_func(int do_set, Value *val)
+{
+    int y, m, d;
+    val->type = INT_TYPE;
+    FromJulian(JulianToday, &y, &m, &d);
+    val->v.val = d;
+    return OK;
+}
+
+static int today_mon_func(int do_set, Value *val)
+{
+    int y, m, d;
+    val->type = INT_TYPE;
+    FromJulian(JulianToday, &y, &m, &d);
+    val->v.val = m+1;
+    return OK;
+}
+
+static int today_year_func(int do_set, Value *val)
+{
+    int y, m, d;
+    val->type = INT_TYPE;
+    FromJulian(JulianToday, &y, &m, &d);
+    val->v.val = y;
+    return OK;
+}
+
+static int today_wday_func(int do_set, Value *val)
+{
+    val->type = INT_TYPE;
+    val->v.val = (JulianToday + 1) % 7;
+    return OK;
+}
+
 static int date_sep_func(int do_set, Value *val)
 {
     if (!do_set) {
@@ -186,7 +290,7 @@ int SetVar(char const *str, Value *val)
 /*  Get a copy of the value of the variable.                   */
 /*                                                             */
 /***************************************************************/
-int GetVarValue(char const *str, Value *val, Var *locals)
+int GetVarValue(char const *str, Value *val, Var *locals, ParsePtr p)
 {
     Var *v;
 
@@ -198,6 +302,8 @@ int GetVarValue(char const *str, Value *val, Var *locals)
 	v = v->next;
     }
 
+    /* Global variable... mark expression as non-constant */
+    if (p) p->nonconst_expr = 1;
     v=FindVar(str, 0);
 
     if (!v) {
@@ -286,6 +392,8 @@ int DoDump(ParsePtr p)
     Var *v;
     DynamicBuffer buf;
 
+    if (PurgeMode) return OK;
+
     DBufInit(&buf);
     r = ParseToken(p, &buf);
     if (r) return r;
@@ -462,47 +570,57 @@ typedef struct {
 
 /* All of the system variables sorted alphabetically */
 static SysVar SysVarArr[] = {
-    /* name		  mod	type		value		min/mal	max */
-    {   "CalcUTC",	  1,	INT_TYPE,	&CalculateUTC,	0,	1   },
-    {   "CalMode",	  0,	INT_TYPE,	&DoCalendar,	0,	0   },
-    {   "Daemon",	  0,	INT_TYPE,	&Daemon,	0,	0   },
-    {   "DateSep",        1,    SPECIAL_TYPE,   date_sep_func,  0,      0   },
-    {   "DefaultPrio",	  1,	INT_TYPE,	&DefaultPrio,	0,	9999 },
-    {   "DeltaOffset",    0,    INT_TYPE,       &DeltaOffset,   0,      0   },
-    {   "DontFork",	  0,	INT_TYPE,	&DontFork,	0,	0   },
-    {   "DontQueue",	  0,	INT_TYPE,	&DontQueue,	0,	0   },
-    {   "DontTrigAts",	  0,	INT_TYPE,	&DontIssueAts,	0,	0   },
-    {   "EndSent",	  1,	STR_TYPE,	&EndSent,	0,	0   },
-    {   "EndSentIg",	  1,	STR_TYPE,	&EndSentIg,	0,	0   },
-    {   "FirstIndent",	  1,	INT_TYPE,	&FirstIndent,	0,	132 },
-    {   "FoldYear",	  1,	INT_TYPE,	&FoldYear,	0,	1   },
-    {   "FormWidth",	  1,	INT_TYPE,	&FormWidth,	20,	132 },
-    {   "HushMode",	  0,	INT_TYPE,	&Hush,		0,	0   },
-    {   "IgnoreOnce",	  0,	INT_TYPE,	&IgnoreOnce,	0,	0   },
-    {   "InfDelta",	  0,	INT_TYPE,	&InfiniteDelta,	0,	0   },
-    {   "LatDeg",	  1,	INT_TYPE,	&LatDeg,	-90,	90  },
-    {   "LatMin",	  1,	INT_TYPE,	&LatMin,	-59,	59  },
-    {   "LatSec",	  1,	INT_TYPE,	&LatSec,	-59,	59  },
-    {   "Location",	  1,	STR_TYPE,	&Location,	0,	0   },
-    {   "LongDeg",	  1,	INT_TYPE,	&LongDeg,	-180,	180  },
-    {   "LongMin",	  1,	INT_TYPE,	&LongMin,	-59,	59  },
-    {   "LongSec",	  1,	INT_TYPE,	&LongSec,	-59,	59  },
-    {   "MaxSatIter",	  1,	INT_TYPE,	&MaxSatIter,	10,	ANY },
-    {   "MaxStringLen",	  1,	INT_TYPE,	&MaxStringLen,	-1,	ANY },
-    {   "MinsFromUTC",	  1,	INT_TYPE,	&MinsFromUTC,	-13*60,	13*60 },
-    {   "NextMode",	  0,	INT_TYPE,	&NextMode,	0,	0   },
-    {   "NumQueued",	  0,	INT_TYPE,	&NumQueued,	0,	0   },
-    {   "NumTrig",	  0,	INT_TYPE,	&NumTriggered,	0,	0   },
-    {   "PrefixLineNo",	  0,	INT_TYPE,	&DoPrefixLineNo,0,	0   },
-    {   "PSCal",	  0,	INT_TYPE,	&PsCal,		0,	0   },
-    {   "RunOff",	  0,	INT_TYPE,	&RunDisabled,	0,	0   },
-    {   "SimpleCal",	  0,	INT_TYPE,	&DoSimpleCalendar,	0,  0 },
-    {   "SortByDate",	  0,	INT_TYPE,	&SortByDate,	0,	0},
-    {   "SortByPrio",	  0,	INT_TYPE,	&SortByPrio,	0,	0},
-    {   "SortByTime",	  0,	INT_TYPE,	&SortByTime,	0,	0},
-    {   "SubsIndent",	  1,	INT_TYPE,	&SubsIndent,	0,	132},
-    {   "TimeSep",        1,    SPECIAL_TYPE,   time_sep_func,  0,      0   },
-    {   "UntimedFirst", 0, INT_TYPE,      &UntimedBeforeTimed, 0, 0 }
+    /*  name          mod  type              value         min/mal   max */
+    {"CalcUTC",        1,  INT_TYPE,     &CalculateUTC,       0,      1   },
+    {"CalMode",        0,  INT_TYPE,     &DoCalendar,         0,      0   },
+    {"Daemon",         0,  INT_TYPE,     &Daemon,             0,      0   },
+    {"DateSep",        1,  SPECIAL_TYPE, date_sep_func,       0,      0   },
+    {"DefaultPrio",    1,  INT_TYPE,     &DefaultPrio,        0,      9999},
+    {"DeltaOffset",    0,  INT_TYPE,     &DeltaOffset,        0,      0   },
+    {"DontFork",       0,  INT_TYPE,     &DontFork,           0,      0   },
+    {"DontQueue",      0,  INT_TYPE,     &DontQueue,          0,      0   },
+    {"DontTrigAts",    0,  INT_TYPE,     &DontIssueAts,       0,      0   },
+    {"EndSent",        1,  STR_TYPE,     &EndSent,            0,      0   },
+    {"EndSentIg",      1,  STR_TYPE,     &EndSentIg,          0,      0   },
+    {"FirstIndent",    1,  INT_TYPE,     &FirstIndent,        0,      132 },
+    {"FoldYear",       1,  INT_TYPE,     &FoldYear,           0,      1   },
+    {"FormWidth",      1,  INT_TYPE,     &FormWidth,          20,     132 },
+    {"HushMode",       0,  INT_TYPE,     &Hush,               0,      0   },
+    {"IgnoreOnce",     0,  INT_TYPE,     &IgnoreOnce,         0,      0   },
+    {"InfDelta",       0,  INT_TYPE,     &InfiniteDelta,      0,      0   },
+    {"LatDeg",         1,  INT_TYPE,     &LatDeg,             -90,    90  },
+    {"LatMin",         1,  INT_TYPE,     &LatMin,             -59,    59  },
+    {"LatSec",         1,  INT_TYPE,     &LatSec,             -59,    59  },
+    {"Location",       1,  STR_TYPE,     &Location,           0,      0   },
+    {"LongDeg",        1,  INT_TYPE,     &LongDeg,            -180,   180 },
+    {"LongMin",        1,  INT_TYPE,     &LongMin,            -59,    59  },
+    {"LongSec",        1,  INT_TYPE,     &LongSec,            -59,    59  },
+    {"MaxSatIter",     1,  INT_TYPE,     &MaxSatIter,         10,     ANY },
+    {"MaxStringLen",   1,  INT_TYPE,     &MaxStringLen,       -1,     ANY },
+    {"MinsFromUTC",    1,  INT_TYPE,     &MinsFromUTC,        -780,   780 },
+    {"NextMode",       0,  INT_TYPE,     &NextMode,           0,      0   },
+    {"NumQueued",      0,  INT_TYPE,     &NumQueued,          0,      0   },
+    {"NumTrig",        0,  INT_TYPE,     &NumTriggered,       0,      0   },
+    {"PrefixLineNo",   0,  INT_TYPE,     &DoPrefixLineNo,     0,      0   },
+    {"PSCal",          0,  INT_TYPE,     &PsCal,              0,      0   },
+    {"RunOff",         0,  INT_TYPE,     &RunDisabled,        0,      0   },
+    {"SimpleCal",      0,  INT_TYPE,     &DoSimpleCalendar,   0,      0   },
+    {"SortByDate",     0,  INT_TYPE,     &SortByDate,         0,      0   },
+    {"SortByPrio",     0,  INT_TYPE,     &SortByPrio,         0,      0   },
+    {"SortByTime",     0,  INT_TYPE,     &SortByTime,         0,      0   },
+    {"SubsIndent",     1,  INT_TYPE,     &SubsIndent,         0,      132 },
+    {"T",              0,  SPECIAL_TYPE, trig_date_func,      0,      0   },
+    {"Td",             0,  SPECIAL_TYPE, trig_day_func,       0,      0   },
+    {"TimeSep",        1,  SPECIAL_TYPE, time_sep_func,       0,      0   },
+    {"Tm",             0,  SPECIAL_TYPE, trig_mon_func,       0,      0   },
+    {"Tw",             0,  SPECIAL_TYPE, trig_wday_func,      0,      0   },
+    {"Ty",             0,  SPECIAL_TYPE, trig_year_func,      0,      0   },
+    {"U",              0,  SPECIAL_TYPE, today_date_func,     0,      0   },
+    {"Ud",             0,  SPECIAL_TYPE, today_day_func,      0,      0   },
+    {"Um",             0,  SPECIAL_TYPE, today_mon_func,      0,      0   },
+    {"UntimedFirst",   0,  INT_TYPE,     &UntimedBeforeTimed, 0,      0   },
+    {"Uw",             0,  SPECIAL_TYPE, today_wday_func,     0,      0   },
+    {"Uy",             0,  SPECIAL_TYPE, today_year_func,     0,      0   }
 };
 
 #define NUMSYSVARS ( sizeof(SysVarArr) / sizeof(SysVar) )
@@ -646,9 +764,8 @@ static void DumpSysVar(char const *name, const SysVar *v)
 	    Value val;
 	    SysVarFunc f = (SysVarFunc) v->value;
 	    f(0, &val);
-	    if (DoCoerce(STR_TYPE, &val) == OK) {
-		fprintf(ErrFp, "\"%s\"\n", val.v.str);
-	    }
+	    PrintValue(&val, ErrFp);
+	    Putc('\n', ErrFp);
 	    DestroyValue(val);
 	} else if (v->type == STR_TYPE) {
 	    char const *s = *((char **)v->value);
@@ -665,6 +782,12 @@ static void DumpSysVar(char const *name, const SysVar *v)
 	    Putc('"', ErrFp);
 	    if (*s) fprintf(ErrFp, "...");
 	    Putc('\n', ErrFp);
+	} else if (v->type == DATE_TYPE) {
+	    Value val;
+	    val.type = DATE_TYPE;
+	    val.v.val = * (int *) v->value;
+	    PrintValue(&val, ErrFp);
+	    Putc('\n', ErrFp);
 	} else {
 	    if (!v->modifiable) fprintf(ErrFp, "%d\n", *((int *)v->value));
 	    else {

tests/file.ps

@@ -0,0 +1 @@
+(Second-Bit-Of-PS)

tests/file2.ps

@@ -0,0 +1 @@
+(Fourth-Bit-Of-PS)

tests/purge_dir/f1.rem

@@ -0,0 +1,7 @@
+# This is f1.rem
+INCLUDE [filedir()]/f2.rem
+INCLUDE [filedir()]/f2.rem
+
+REM 1 Oct 1991 MSG old1.
+
+REM Monday UNTIL 1 Oct 1991 MSG old2.

tests/purge_dir/f2.rem

@@ -0,0 +1,6 @@
+# This is f2.rem
+
+REM 3 feb 2012 MSG new
+REM 3 1998 MSG old
+
+INCLUDE [filedir()]/f3.rem

tests/purge_dir/f3.rem

@@ -0,0 +1,92 @@
+# This is f3.rem
+
+REM Mon MSG repeat
+
+REM Mon SATISFY [1] MSG repeat
+
+IF 0
+REM 1991 MSG wookie
+ENDIF
+
+IF 1
+REM 1991 MSG wookie
+ENDIF
+
+IFTRIG 1991
+REM MSG wookie
+ENDIF
+
+# More complex conditional statements
+IF 1
+  IF 0
+    REM 1991 MSG wookie
+  ELSE
+    REM 1991 MSG wookie
+  ENDIF
+ELSE
+  IF 1
+    REM 1991 MSG wookie
+  ELSE
+    REM 1991 MSG wookie
+  ENDIF
+ENDIF
+
+REM [1990+1] MSG old-with-constant-expression
+
+REM [1990+1] \
+  MSG Continued line-old-with-constant-expression
+
+REM 1990 \
+  MSG expired-continued-line
+
+set y 1990
+
+REM [y+1] MSG old-with-nonconstant-expression
+
+# A comment that should be preserved
+
+#!P A comment that should be nuked because it \
+starts with #!P
+
+REM [y+1] \
+  MSG Continued-line-old-with-nonconstant-expression
+
+OMIT 25 Dec MSG woaaahh!
+OMIT 24 Dec
+
+OMIT 1 Jan 1992 MSG woaaahah... expired
+OMIT 2 Jan 1992
+
+# Complicated expressions
+SET a 3
+FSET const(x) x+3
+FSET nonconst(x) x+a
+
+REM [const(5)] Jan 1992 MSG expired... should be commented out
+REM [const(a)] Jan 1992 MSG nonconstant expression
+REM [nonconst(5)] Jan 1992 MSG nonconstant expression
+REM [value("a")] Jan 1992 MSG nonconstant expression
+
+IF 0
+# A comment in a false IF block
+#!P This should be nuked
+ENDIF
+
+# Busted line
+REM [0/0] Jan 1992 MSG ouch
+
+ERRMSG blorky
+FLUSH
+SET a 1
+FSET a(x) x*x
+UNSET a
+CLEAR-OMIT-CONTEXT
+PUSH-OMIT-CONTEXT
+POP-OMIT-CONTEXT
+BANNER wow
+DEBUG +x
+DEBUG -x
+DUMP $
+EXIT 0
+PRESERVE i
+

tests/shade.rem

@@ -0,0 +1,30 @@
+set $MinsFromUTC -240
+set $CalcUTC 0
+set $Location "Ottawa"
+set $LongDeg 75
+set $LongMin 39
+set $LongSec 0
+set $LatDeg 45
+set $LatMin 24
+set $LatSec 0
+
+IF $PSCAL
+	[trigger(moondate(0))] SPECIAL MOON 0 -1 -1 [moontime(0)]
+	[trigger(moondate(1))] SPECIAL MOON 1 -1 -1 [moontime(1)]
+	[trigger(moondate(2))] SPECIAL MOON 2 -1 -1 [moontime(2)]
+	[trigger(moondate(3))] SPECIAL MOON 3 -1 -1 [moontime(3)]
+ENDIF
+
+REM 4 PS (First-Bit-Of-PS)
+REM 4 PSFILE file.ps
+REM 4 PS (Third-Bit-Of-PS)
+REM 4 PSFILE file2.ps
+
+REM Mon SPECIAL SHADE 255 255 255
+REM Tue SPECIAL SHADE 255 255 204
+REM Wed SPECIAL SHADE 255 204 255
+REM Thu SPECIAL SHADE 204 255 255
+REM Fri SPECIAL SHADE 255 204 204
+REM Sat SPECIAL SHADE 204 255 204
+REM Sun SPECIAL SHADE 204 204 255
+

tests/test-rem

@@ -67,8 +67,20 @@ echo "Sort Test" >> ../tests/test.out
 (echo "REM AT 12:00 MSG Untimed"; echo "REM MSG Timed") | ../src/remind -gaaa - 1 Jan 2000 >> ../tests/test.out 2>&1
 (echo "REM AT 12:00 MSG Untimed"; echo "REM MSG Timed") | ../src/remind -gaaad - 1 Jan 2000 >> ../tests/test.out 2>&1
 
+echo "Purge Test" >> ../tests/test.out
+../src/remind -j999 ../tests/purge_dir/f1.rem >> ../tests/test.out 2>&1
+echo "F1" >> ../tests/test.out
+cat ../tests/purge_dir/f1.rem.purged >> ../tests/test.out
+echo "F2" >> ../tests/test.out
+cat ../tests/purge_dir/f2.rem.purged >> ../tests/test.out
+echo "F3" >> ../tests/test.out
+cat ../tests/purge_dir/f3.rem.purged >> ../tests/test.out
+
+rm -f ../tests/purge_dir/*.rem.purged >> ../tests/test.out 2>&1
 ../src/remind ../tests/runtest.rem >> ../tests/test.out 2>&1
 
+../src/remind -p ../tests/shade.rem 1 August 2009 | ../src/rem2ps -e -l -c3 >> ../tests/test.out 2>&1
+
 cmp -s ../tests/test.out ../tests/test.cmp
 if [ "$?" = "0" ]; then
    echo "Remind:  Acceptance test PASSED"

tests/test.rem

@@ -45,6 +45,9 @@ fset _i(x,y,z,a) trigger(hebdate(x,y,z,a))
 [_i(29, "Adar A", today(), 5755)] MSG Leap
 [_i(29, "Adar A", today(), 5756)] MSG Illegal
 
+# This causes a parse error on version 03.01.01
+REM 1990-01-01 SATISFY 1
+
 # Test each possible case of the basic reminders.
 
 REM MSG Every Day