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Add German holidays

See merge request dskoll/remind!6

.gitignore

@@ -22,6 +22,7 @@ rem2pdf/Makefile.PL
 rem2pdf/Makefile.old
 rem2pdf/Makefile.top
 rem2pdf/bin/rem2pdf
+scripts/tkremind
 set-irc-topic
 src/*.tar.gz*
 src/Makefile
@@ -33,3 +34,4 @@ src/version.h
 tests/test.out
 www/Makefile
 gmon.out
+tests/once.timestamp

.gitlab-ci.yml

@@ -1,3 +1,8 @@
+workflow:
+  rules:
+    - if: $CI_COMMIT_BRANCH =~ /wip/
+      when: never
+
 tests:
   image: 'debian:stable-slim'
   before_script:

MICROSOFT-AND-APPLE

@@ -1,30 +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.
-
-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.
-
---
-Dianne Skoll

Makefile

@@ -24,7 +24,7 @@ install:
 	@$(MAKE) -C rem2pdf -f Makefile.top install INSTALL_BASE=$(INSTALL_BASE)
 clean:
 	find . -name '*~' -exec rm {} \;
-	-rm man/rem.1 man/rem2ps.1 man/remind.1 man/tkremind.1
+	-rm man/rem.1 man/rem2ps.1 man/remind.1 man/tkremind.1 scripts/tkremind
 	-$(MAKE) -C src clean
 	-$(MAKE) -C rem2pdf clean
 

build.tk

@@ -15,6 +15,8 @@
 # the next line restarts using wish \
 exec wish "$0" "$@"
 
+global RemindExecutable
+
 #***********************************************************************
 # %PROCEDURE: SetConfigDefaults
 # %ARGUMENTS:
@@ -40,7 +42,7 @@ proc SetConfigDefaults {} {
     set Config(WESTERN_HEMISPHERE) 1
     set Config(LANGUAGE) "English"
     set Config(INST_DIR) "/usr/local/bin"
-    set Config(MAN_DIR) "/usr/local/man"
+    set Config(MAN_DIR) "/usr/local/share/man"
 }
 
 #***********************************************************************
@@ -53,7 +55,7 @@ proc SetConfigDefaults {} {
 #  Pops up an error dialog; then calls exit.
 #***********************************************************************
 proc Bail { msg } {
-    tk_dialog .err "Remind Configuration Error" $msg error 0 "Bummer"
+    tk_messageBox -message "Remind Build Error" -detail $msg -icon error -type ok
     exit 1
 }
 
@@ -124,7 +126,7 @@ proc CreateMainDialog {} {
 #  Creates the "installation directories" dialog.
 #***********************************************************************
 proc CreateInstallDirDialog { w } {
-    global Config
+    global Config RemindExecutable
     label $w.binlabel -text "Location for programs: "
     entry $w.bin -width 30
     $w.bin insert end $Config(INST_DIR)
@@ -133,16 +135,19 @@ proc CreateInstallDirDialog { w } {
     entry $w.man -width 30
     $w.man insert end $Config(MAN_DIR)
 
-    text $w.blurb -width 1 -height 5 -wrap word -relief flat -takefocus 0
-    $w.blurb insert end "\n(Tabbed-notebook Tcl code taken from \"Effective Tcl/Tk Programming\" by Mark Harrison and Michael McLennan, Addison-Wesley Professional Computing Series.)"
-    $w.blurb configure -state disabled
-    # Disable all text-window behaviour
-    bindtags $w.blurb {NoSuchTag}
+    text $w.blurb -width 1 -height 20 -wrap word -relief flat -takefocus 0
+    if { "$RemindExecutable" != "" } {
+        $w.blurb insert end "Note: Default settings were obtained by querying the existing installed version of Remind found at: $RemindExecutable\n"
+    }
+    $w.blurb insert end "\n(Tabbed-notebook Tcl code taken from \"Effective Tcl/Tk Programming\" by Mark Harrison and Michael McLennan, Addison-Wesley Professional Computing Series.)\n"
     grid $w.binlabel -row 0 -column 0 -sticky e
     grid $w.bin -row 0 -column 1 -sticky nsew
     grid $w.manlabel -row 1 -column 0 -sticky e
     grid $w.man -row 1 -column 1 -sticky nsew
     grid $w.blurb - -sticky nsew
+    # Disable all text-window behaviour
+    bindtags $w.blurb {NoSuchTag}
+    $w.blurb configure -state disabled
 }
 
 #***********************************************************************
@@ -727,7 +732,7 @@ proc notebook_fix_size {win} {
 #***********************************************************************
 proc FindRemind {} {
     global env
-    set path [concat [split $env(PATH) ":"] "/bin" "/usr/bin" "/usr/local/bin"]
+    set path [concat [split $env(PATH) ":"] "/usr/local/bin" "/bin" "/usr/bin" ]
     foreach thing $path {
 	if [file executable [file join $thing "remind"]] {
 	    return [file join $thing "remind"]
@@ -745,16 +750,17 @@ proc FindRemind {} {
 #  sensible defaults.
 #***********************************************************************
 proc SetConfigFromRemind {} {
-    global Config
+    global Config RemindExecutable
     SetConfigDefaults
     set rem [FindRemind]
+    set RemindExecutable $rem
     if {"$rem" == ""} {
 	return
     }
     set dir [file dirname $rem]
     set Config(INST_DIR) $dir
     if {"$dir" == "/usr/local/bin"} {
-	set Config(MAN_DIR) "/usr/local/man"
+	set Config(MAN_DIR) "/usr/local/share/man"
     } elseif {$dir == "/usr/bin"} {
 	set Config(MAN_DIR) "/usr/share/man"
     }
@@ -764,6 +770,8 @@ proc SetConfigFromRemind {} {
 	set Config(MAN_DIR) "/usr/share/man"
     } elseif {[file readable "/usr/man/man1/remind.1"]} {
 	set Config(MAN_DIR) "/usr/man"
+    } elseif {[file readable "/usr/local/share/man/man1/remind.1"]} {
+	set Config(MAN_DIR) "/usr/local/share/man"
     } elseif {[file readable "/usr/local/man/man1/remind.1"]} {
 	set Config(MAN_DIR) "/usr/local/man"
     }

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.71.
+# Generated by GNU Autoconf 2.71 for remind 05.00.07.
 #
 #
 # Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
@@ -606,12 +606,12 @@ MFLAGS=
 MAKEFLAGS=
 
 # Identity of this package.
-PACKAGE_NAME=''
-PACKAGE_TARNAME=''
-PACKAGE_VERSION=''
-PACKAGE_STRING=''
+PACKAGE_NAME='remind'
+PACKAGE_TARNAME='remind'
+PACKAGE_VERSION='05.00.07'
+PACKAGE_STRING='remind 05.00.07'
 PACKAGE_BUGREPORT=''
-PACKAGE_URL=''
+PACKAGE_URL='https://dianne.skoll.ca/projects/remind/'
 
 ac_unique_file="src/queue.c"
 # Factoring default headers for most tests.
@@ -651,6 +651,7 @@ LIBOBJS
 RELEASE_DATE
 PERLARTIFACTS
 VERSION
+CONFIG_CMD
 PERL
 SET_MAKE
 LN_S
@@ -757,7 +758,7 @@ localstatedir='${prefix}/var'
 runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
-docdir='${datarootdir}/doc/${PACKAGE}'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
 infodir='${datarootdir}/info'
 htmldir='${docdir}'
 dvidir='${docdir}'
@@ -1264,7 +1265,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures this package to adapt to many kinds of systems.
+\`configure' configures remind 05.00.07 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1313,7 +1314,7 @@ Fine tuning of the installation directories:
   --infodir=DIR           info documentation [DATAROOTDIR/info]
   --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
   --mandir=DIR            man documentation [DATAROOTDIR/man]
-  --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]
+  --docdir=DIR            documentation root [DATAROOTDIR/doc/remind]
   --htmldir=DIR           html documentation [DOCDIR]
   --dvidir=DIR            dvi documentation [DOCDIR]
   --pdfdir=DIR            pdf documentation [DOCDIR]
@@ -1325,7 +1326,9 @@ _ACEOF
 fi
 
 if test -n "$ac_init_help"; then
-
+  case $ac_init_help in
+     short | recursive ) echo "Configuration of remind 05.00.07:";;
+   esac
   cat <<\_ACEOF
 
 Optional Features:
@@ -1348,6 +1351,7 @@ Use these variables to override the choices made by `configure' or to help
 it to find libraries and programs with nonstandard names/locations.
 
 Report bugs to the package provider.
+remind home page: <https://dianne.skoll.ca/projects/remind/>.
 _ACEOF
 ac_status=$?
 fi
@@ -1411,7 +1415,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-configure
+remind configure 05.00.07
 generated by GNU Autoconf 2.71
 
 Copyright (C) 2021 Free Software Foundation, Inc.
@@ -1861,7 +1865,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by $as_me, which was
+It was created by remind $as_me 05.00.07, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   $ $0$ac_configure_args_raw
@@ -2450,7 +2454,6 @@ as_fn_append ac_header_c_list " sys/stat.h sys_stat_h HAVE_SYS_STAT_H"
 as_fn_append ac_header_c_list " sys/types.h sys_types_h HAVE_SYS_TYPES_H"
 as_fn_append ac_header_c_list " unistd.h unistd_h HAVE_UNISTD_H"
 as_fn_append ac_header_c_list " sys/time.h sys_time_h HAVE_SYS_TIME_H"
-as_fn_append ac_header_c_list " utime.h utime_h HAVE_UTIME_H"
 
 # Auxiliary files required by this configure script.
 ac_aux_files="install-sh"
@@ -4004,6 +4007,12 @@ printf "%s\n" "#define SIZEOF_TIME_T $ac_cv_sizeof_time_t" >>confdefs.h
 
 
 
+ac_fn_c_check_header_compile "$LINENO" "strings.h" "ac_cv_header_strings_h" "$ac_includes_default"
+if test "x$ac_cv_header_strings_h" = xyes
+then :
+  printf "%s\n" "#define HAVE_STRINGS_H 1" >>confdefs.h
+
+fi
 ac_fn_c_check_header_compile "$LINENO" "sys/types.h" "ac_cv_header_sys_types_h" "$ac_includes_default"
 if test "x$ac_cv_header_sys_types_h" = xyes
 then :
@@ -4080,60 +4089,6 @@ printf "%s\n" "#define TM_IN_SYS_TIME 1" >>confdefs.h
 fi
 
 
-
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether utime accepts a null argument" >&5
-printf %s "checking whether utime accepts a null argument... " >&6; }
-if test ${ac_cv_func_utime_null+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  rm -f conftest.data; >conftest.data
-# Sequent interprets utime(file, 0) to mean use start of epoch.  Wrong.
-if test "$cross_compiling" = yes
-then :
-  ac_cv_func_utime_null='guessing yes'
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$ac_includes_default
-	       #ifdef HAVE_UTIME_H
-	       # include <utime.h>
-	       #endif
-int
-main (void)
-{
-struct stat s, t;
-  return ! (stat ("conftest.data", &s) == 0
-	    && utime ("conftest.data", 0) == 0
-	    && stat ("conftest.data", &t) == 0
-	    && t.st_mtime >= s.st_mtime
-	    && t.st_mtime - s.st_mtime < 120);
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"
-then :
-  ac_cv_func_utime_null=yes
-else $as_nop
-  ac_cv_func_utime_null=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_utime_null" >&5
-printf "%s\n" "$ac_cv_func_utime_null" >&6; }
-if test "x$ac_cv_func_utime_null" != xno; then
-  ac_cv_func_utime_null=yes
-
-printf "%s\n" "#define HAVE_UTIME_NULL 1" >>confdefs.h
-
-fi
-rm -f conftest.data
-
 if test "$GCC" = yes; then
 	CFLAGS="$CFLAGS -Wall -Wextra -Wstrict-prototypes"
         # Check for link-time optimization support
@@ -4181,6 +4136,24 @@ if test "$?" != 0 ; then
     echo "*** COULD NOT DETERMINE RELEASE DATE: docs/WHATSNEW is incorrect!"
     exit 1
 fi
+ac_fn_c_check_func "$LINENO" "strdup" "ac_cv_func_strdup"
+if test "x$ac_cv_func_strdup" = xyes
+then :
+  printf "%s\n" "#define HAVE_STRDUP 1" >>confdefs.h
+
+fi
+ac_fn_c_check_func "$LINENO" "strcasecmp" "ac_cv_func_strcasecmp"
+if test "x$ac_cv_func_strcasecmp" = xyes
+then :
+  printf "%s\n" "#define HAVE_STRCASECMP 1" >>confdefs.h
+
+fi
+ac_fn_c_check_func "$LINENO" "strncasecmp" "ac_cv_func_strncasecmp"
+if test "x$ac_cv_func_strncasecmp" = xyes
+then :
+  printf "%s\n" "#define HAVE_STRNCASECMP 1" >>confdefs.h
+
+fi
 ac_fn_c_check_func "$LINENO" "setenv" "ac_cv_func_setenv"
 if test "x$ac_cv_func_setenv" = xyes
 then :
@@ -4225,12 +4198,18 @@ then :
 fi
 
 
-VERSION=04.03.01
+VERSION=$PACKAGE_VERSION
+CONFIG_CMD="$0$ac_configure_args_raw"
+CONFIG_CMD=`echo "$CONFIG_CMD" | sed -e 's/"/\\\\"/g'`
+
+printf "%s\n" "#define CONFIG_CMD \"$CONFIG_CMD\"" >>confdefs.h
 
 
 
 
-ac_config_files="$ac_config_files src/Makefile www/Makefile src/version.h rem2html/Makefile rem2html/rem2html rem2pdf/Makefile.PL rem2pdf/Makefile.top rem2pdf/bin/rem2pdf man/rem.1 man/rem2ps.1 man/remind.1 man/tkremind.1"
+
+
+ac_config_files="$ac_config_files src/Makefile www/Makefile src/version.h rem2html/Makefile rem2html/rem2html rem2pdf/Makefile.PL rem2pdf/Makefile.top rem2pdf/bin/rem2pdf man/rem.1 man/rem2ps.1 man/remind.1 man/tkremind.1 scripts/tkremind"
 
 cat >confcache <<\_ACEOF
 # This file is a shell script that caches the results of configure
@@ -4731,7 +4710,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by $as_me, which was
+This file was extended by remind $as_me 05.00.07, which was
 generated by GNU Autoconf 2.71.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -4787,7 +4766,8 @@ $config_files
 Configuration headers:
 $config_headers
 
-Report bugs to the package provider."
+Report bugs to the package provider.
+remind home page: <https://dianne.skoll.ca/projects/remind/>."
 
 _ACEOF
 ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`
@@ -4795,7 +4775,7 @@ ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
-config.status
+remind config.status 05.00.07
 configured by $0, generated by GNU Autoconf 2.71,
   with options \\"\$ac_cs_config\\"
 
@@ -4930,6 +4910,7 @@ do
     "man/rem2ps.1") CONFIG_FILES="$CONFIG_FILES man/rem2ps.1" ;;
     "man/remind.1") CONFIG_FILES="$CONFIG_FILES man/remind.1" ;;
     "man/tkremind.1") CONFIG_FILES="$CONFIG_FILES man/tkremind.1" ;;
+    "scripts/tkremind") CONFIG_FILES="$CONFIG_FILES scripts/tkremind" ;;
 
   *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac
@@ -5517,4 +5498,5 @@ printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2
 fi
 
 chmod a+x rem2pdf/bin/rem2pdf
+chmod a+x scripts/tkremind
 

configure.ac

@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 
-AC_INIT
+AC_INIT(remind, 05.00.07, , , https://dianne.skoll.ca/projects/remind/)
 AC_CONFIG_SRCDIR([src/queue.c])
 
 cat <<'EOF'
@@ -30,7 +30,7 @@ AC_PATH_PROG([PERL], [perl])
 
 dnl Checks for libraries.
 AC_CHECK_LIB(m, sqrt)
-AC_CHECK_HEADERS_ONCE([sys/time.h])
+AC_CHECK_HEADERS_ONCE([sys/time.h stdint.h])
 
 dnl Integer sizes
 AC_CHECK_SIZEOF(unsigned int)
@@ -38,13 +38,11 @@ AC_CHECK_SIZEOF(unsigned long)
 AC_CHECK_SIZEOF(time_t)
 
 dnl Checks for header files.
-AC_CHECK_HEADERS(sys/types.h glob.h wctype.h locale.h langinfo.h sys/inotify.h)
+AC_CHECK_HEADERS(strings.h sys/types.h glob.h wctype.h locale.h langinfo.h sys/inotify.h)
 
 dnl Checks for typedefs, structures, and compiler characteristics.
 AC_STRUCT_TM
 
-dnl Checks for library functions.
-AC_FUNC_UTIME_NULL
 if test "$GCC" = yes; then
 	CFLAGS="$CFLAGS -Wall -Wextra -Wstrict-prototypes"
         # Check for link-time optimization support
@@ -86,13 +84,18 @@ if test "$?" != 0 ; then
     echo "*** COULD NOT DETERMINE RELEASE DATE: docs/WHATSNEW is incorrect!"
     exit 1
 fi
-AC_CHECK_FUNCS(setenv unsetenv glob mbstowcs setlocale initgroups inotify_init1)
+AC_CHECK_FUNCS(strdup strcasecmp strncasecmp setenv unsetenv glob mbstowcs setlocale initgroups inotify_init1)
 
-VERSION=04.03.01
+VERSION=$PACKAGE_VERSION
+CONFIG_CMD="$0$ac_configure_args_raw"
+CONFIG_CMD=`echo "$CONFIG_CMD" | sed -e 's/"/\\\\"/g'`
+AC_DEFINE_UNQUOTED([CONFIG_CMD], ["$CONFIG_CMD"], [Configuration command used to build Remind])
+AC_SUBST(CONFIG_CMD)
 AC_SUBST(VERSION)
 AC_SUBST(PERL)
 AC_SUBST(PERLARTIFACTS)
 AC_SUBST(RELEASE_DATE)
-AC_CONFIG_FILES([src/Makefile www/Makefile src/version.h rem2html/Makefile rem2html/rem2html rem2pdf/Makefile.PL rem2pdf/Makefile.top rem2pdf/bin/rem2pdf man/rem.1 man/rem2ps.1 man/remind.1 man/tkremind.1])
+AC_CONFIG_FILES([src/Makefile www/Makefile src/version.h rem2html/Makefile rem2html/rem2html rem2pdf/Makefile.PL rem2pdf/Makefile.top rem2pdf/bin/rem2pdf man/rem.1 man/rem2ps.1 man/remind.1 man/tkremind.1 scripts/tkremind])
 AC_OUTPUT
 chmod a+x rem2pdf/bin/rem2pdf
+chmod a+x scripts/tkremind

contrib/ical2rem-0.8/GITHUB

@@ -0,0 +1,3 @@
+The upstream GitHub project for ical2rem is:
+
+https://github.com/jbalcorn/ical2rem

contrib/ical2rem-0.8/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2005, 2007, 2019 Justin B. Alcorn
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

contrib/ical2rem-0.8/README.md

@@ -0,0 +1,103 @@
+# ical2rem
+The original iCal to Remind script, first released in 2005.
+
+Reads iCal files and outputs remind-compatible files.   Tested ONLY with
+  calendar files created by Mozilla Calendar/Sunbird. Use at your own risk.
+
+## License
+In 2005, this was released with the Gnu Public License V2.  However, I am changing it to the MIT License, since that provides greater freedom to do with this code what you want.
+
+Copyright (c) 2005, 2007, 2019 Justin B. Alcorn
+
+## How I use Remind and Google Calendar together
+
+  - My family has a Google Email domain, and our email addresses all end in the same domain. We all use Google Calendars and I want to mail reminders to each of the family members containing both Google Calendar and .reminder information.
+  - Under my ~/.rem/ directory each family member has a directory.  Each directory contains a standard remind file called 'reminders' that at the very least has the line "INCLUDE /home/jalcorn/.rem/<username>/ical2rem" and flag files indicating whether they want Daily or Weekly reminders.  My reminders files references my standard .reminders file, and I also have a flag so if I run a Test run I'll get it.  There's actually a lot more files (I have a big family).
+````
+  ./rem
+    ./son1:
+      drwxrwxr-x  2 jalcorn jalcorn 4096 Dec 12 14:02 .
+      drwxr-xr-x 12 jalcorn jalcorn 4096 Dec 12 14:13 ..
+      -rw-rw-r--  1 jalcorn jalcorn   51 Mar  3 06:10 ical2rem
+      lrwxrwxrwx  1 jalcorn jalcorn   33 Oct 27  2016 son1.ics -> /home/jalcorn/calendars/son1.ics
+      -rw-rw-r--  1 jalcorn jalcorn  976 Dec 12 14:02 reminders
+      -rw-rw-r--  1 jalcorn jalcorn    0 Oct 27  2016 Weekly
+
+    ./justin:
+      drwxrwxr-x  2 jalcorn jalcorn  4096 Feb 27 08:29 .
+      drwxr-xr-x 12 jalcorn jalcorn  4096 Dec 12 14:13 ..
+      lrwxrwxrwx  1 jalcorn jalcorn    32 Oct 27  2016 son1.ics -> /home/jalcorn/calendars/son1.ics
+      -rw-rw-r--  1 jalcorn jalcorn     0 Nov  7  2016 Daily
+      lrwxrwxrwx  1 jalcorn jalcorn    34 Oct 27  2016 family.ics -> /home/jalcorn/calendars/family.ics
+      -rw-rw-r--  1 jalcorn jalcorn 37320 Mar  3 06:10 ical2rem
+      lrwxrwxrwx  1 jalcorn jalcorn    34 Oct 27  2016 justin.ics -> /home/jalcorn/calendars/justin.ics
+      lrwxrwxrwx  1 jalcorn jalcorn    24 Nov  7  2016 reminders -> /home/jalcorn/.reminders
+      lrwxrwxrwx  1 jalcorn jalcorn    34 Oct 27  2016 vmd.ics -> /home/jalcorn/calendars/vmd.ics
+      -rw-rw-r--  1 jalcorn jalcorn     0 Oct 27  2016 Test
+      -rw-rw-r--  1 jalcorn jalcorn     0 Nov  7  2016 Weekly
+````
+  - bin/getgooglecals.sh runs out of crontab and downloads whatever calendars I want. Note that we can also download organization calendars, I've included a public one here (Cleveland Heights Vocal Music Department calendar).
+  - dailyreminders.sh is linked to weeklyreminders.sh and testreminders.sh so I can run it in different modes. The concatenate the various calendar outputs as a single remind file then send the reminders via email.
+### Example: .rem/son1/reminders file:
+````
+INCLUDE /home/jalcorn/.rem/defs.rem
+INCLUDE /home/jalcorn/.rem/float
+INCLUDE /home/jalcorn/.rem/son1/ical2rem
+fset _weeks() coerce("STRING", (trigdate()-today())/7) + plural((trigdate()-today())/7, " week")
+FSET _sfun(x) choose(x, -60, 30, 5, 0)
+FSET oldfloat(y,m,d) trigger(MAX(realtoday(), date(y,m,d)))
+FSET due(y,m,d) "(" + (date(y,m,d)-trigdate()) + ")"
+SET fullmoon moondate(2)
+REM [trigger(realtoday())] SPECIAL SHADE 145 70 100 %
+REM [float(2019,4,15,105)] MSG File tax return [due(2017,4,15)]%
+REM PRIORITY 9999 MSG %"%"%
+INCLUDE /home/jalcorn/.rem/bdays
+SET $LongDeg 81
+SET $LongMin 11
+SET $LongSec 11
+SET $LatDeg 41
+SET $LatMin 11
+SET $LatSec 11
+REM [trigger(moondate(2))] +1 MSG %"Full Moon%" %b%
+fset _srtd() coerce("STRING", _no_lz(_am_pm(sunrise(today()))))
+fset _sstd() coerce("STRING", _no_lz(_am_pm(sunset(today()))))
+MSG Sun is up today from [_srtd()] to [_sstd()].%"%"%
+````
+## Revision History
+### Version 0.7 2024-09-04
+  - ISSUE 8: New version of remind complains if _sfun isn't defined. Output a header
+	to define a function that does nothing if the function doesn't exist.
+### Version 0.6 2019-03-01
+  - Publish on GitHub and change license to MIT License
+  - Add supporting files and explanation of how I use it
+### 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.
+

contrib/ical2rem-0.8/cal_futureonly.pl

@@ -0,0 +1,82 @@
+#!/usr/bin/perl -w
+#
+# cal_futureonly.pl - 
+# Reads iCal files and outputs events between 1 month ago and 1 year from now.
+# Copyright (c) 2005, 2007, 2019 Justin B. Alcorn
+
+=head1 SYNOPSIS
+
+ cal_futureonly.pl --file=filname.ics > output.ics
+
+ --help				   Usage
+ --man				   Complete man page
+ --infile				   (REQUIRED) name of input calendar file
+ --file				   (REQUIRED) name of output calendar file
+
+Expects an ICAL stream on STDIN. Converts it to the format
+used by the C<remind> script and prints it to STDOUT. 
+
+=head2 --infile
+
+Input file
+
+=head2 --file 
+
+Output File
+
+=cut 
+
+use strict;
+use Data::ICal;
+use Data::ICal::Entry;
+use DateTime::Span;
+use Data::ICal::DateTime;
+use DateTime;
+use Getopt::Long 2.24 qw':config auto_help';
+use Pod::Usage;
+use Data::Dumper;
+use vars '$VERSION';
+$VERSION = "0.1";
+
+my $help;
+my $man;
+my $infile;
+my $file;
+my $debug = 0;
+
+GetOptions (
+	"help|?" 	  => \$help, 
+	"man" 	 	  => \$man,
+    "debug"       => \$debug,
+    "infile=s"    => \$infile,
+	"file=s"      => \$file
+);
+pod2usage(1) if $help;
+pod2usage(1) if (! $file);
+pod2usage(-verbose => 2) if $man;
+
+my $limit = DateTime->now();
+$limit->subtract( months => 1);
+my $endlimit = DateTime->now()->add(years =>1);
+print STDERR "including events from: ",$limit->ymd," to: ".$endlimit->ymd,"\n" if $debug;
+my $span  = DateTime::Span->from_datetimes( start => $limit, end => $endlimit );
+print STDERR "Parsing $infile\n" if $debug;
+my $cal = Data::ICal->new(filename => $infile);
+if (! $cal) {
+	die "Died Trying to read $infile :".$cal->error_message;
+}
+#my $archive = Data::ICal->new(filename => 'archive.ics');
+print "Output = $file\n" if $debug;
+my $new = Data::ICal->new();
+if (! $new) {
+	die $new->error_message;
+}
+
+my @events = $cal->events($span);
+$new->add_entries(@events);
+
+open(NEW, ">$file");
+print NEW $new->as_string;
+close NEW;
+exit 0;
+#:vim set ft=perl ts=4 sts=4 expandtab :

contrib/ical2rem-0.8/dailyreminders.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+r=`basename $0`
+
+if [ $r == 'weeklyreminders.sh' ];
+then
+	t=14;
+	w=Weekly;
+elif [ $r ==  'dailyreminders.sh' ];
+then
+	t=3;
+	w=Daily;
+else
+	t=5
+	w=Test;
+fi
+
+cd .rem
+for d in * ;
+do
+	if [ "$( ls -A $d/$w 2>/dev/null )" ];
+	then
+		echo "Sending a $w reminder to $d"
+		ft=/tmp/$d-t-$$.txt
+		f=/tmp/$d-$$.txt
+		echo "Reminders for next $t days:" >> $f
+		cat /dev/null > $d/ical2rem
+		for c in $d/*.ics
+		do
+			calname=`basename $c .ics | tr a-z A-Z`
+			cat $c 2>/dev/null | sed -e "s/^SUMMARY:/SUMMARY: {${calname}} /" \
+				| sed -e 's/DT\([A-Z]*\);TZID=UTC:\([0-9T]*\)/DT\1:\2Z/' >> $ft
+		done
+		cat $ft | ~/bin/ical2rem.pl --label "Online Calendar" --heading "PRIORITY 9999" --lead-time $t >> $d/ical2rem
+			if [ -e $d/reminders ];then r="${d}/reminders"; else r="${d}/ical2rem";fi
+			/usr/bin/remind -q -iplain=1 $r >> $f
+		echo "
+All calendars can be accessed by logging into https://calendar.google.com/ as $d@jalcorn.net
+" >> $f
+		cat $f	| mail -s "$w Reminders for $d" $d@jalcorn.net;
+		cat $f
+		rm $f
+		rm $ft
+	fi; 
+done

contrib/ical2rem-0.8/getgooglecals.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+#
+#   Get google calendars, fix issues caused by changes in Google calendars, and remove all past events.
+#
+#   Obviously, I've removed the private hashes from private calendars.
+#
+cd ~/calendars
+wget -q -O full/justin.ics --no-check-certificate https://www.google.com/calendar/ical/jbalcorn\%40gmail.com/private-aaaaaaaaaaaaaaaaaaaaaaaaaa/basic.ics
+wget -q -O full/family.ics --no-check-certificate https://www.google.com/calendar/ical/jalcorn.net_aaaaaaaaaaaaaaaaaaaaaaaaaa\%40group.calendar.google.com/private-6c42a79dec0b3b3bb7b9b0ebf9776bc1/basic.ics
+wget -q -O full/son1.ics --no-check-certificate https://www.google.com/calendar/ical/son1\%40jalcorn.net/private-aaaaaaaaaaaaaaaaaaaaaaaaaa/basic.ics
+wget -q -O full/vmd.ics --no-check-certificate https://calendar.google.com/calendar/ical/chuh.org_0pmkefjkiqc4snoel7occlslh8%40group.calendar.google.com/public/basic.ics
+
+for i in full/*.ics;do
+                cat $i 2>/dev/null | sed -e 's/DT\([A-Z]*\);TZID=UTC:\([0-9T]*\)/DT\1:\2Z/' > /tmp/temp.ics
+                cp /tmp/temp.ics $i
+done
+
+~/bin/cal_futureonly.pl --infile=full/justin.ics --file=justin.ics
+~/bin/cal_futureonly.pl --infile=full/family.ics --file=family.ics
+~/bin/cal_futureonly.pl --infile=full/son1.ics --file=son1.ics
+~/bin/cal_futureonly.pl --infile=full/vmd.ics --file=vmd.ics

contrib/ical2rem-0.8/ical2rem.pl

@@ -0,0 +1,396 @@
+#!/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.
+# MIT License
+# 
+# Copyright (c) 2005, 2007, 2019 Justin B. Alcorn
+# 
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+# 
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+# version 0.8 2024-10-16
+#   - Issue 9. Remove extra day notation on all day events.
+# version 0.7.1 2024-09-19
+#       - Made sure license statements were consistent
+# version 0.7 2024-09-04
+#       - Added dummy _sfun to resolve Issue #8
+# version 0.6 2019-03-01
+#       - Updates to put on GitHub
+# 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)
+ --start               Start of time period to parse (parsed by str2time)
+ --end                 End of time period to parse
+ --lead-time           Advance days to start reminders (Default: 3)
+ --todos, --no-todos   Process Todos? (Default: Yes)
+ --iso8601             Use YYYY-MM-DD date format
+ --locations, --no-locations  Include location? (Default: Yes)
+ --end-times, --no-end-times  Include event end times in reminder text
+                              (Default: No)
+ --heading             Define a priority for static entries
+ --help            Usage
+ --debug           Enable debug output
+ --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 --iso8601
+
+Use YYYY-MM-DD date format in output instead of Mmm DD YYYY
+
+=head2 --locations, --no-locations
+
+Whether or not to include locations in events
+
+=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 Date::Parse;
+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 $debug;
+my $man;
+my $iso8601;
+my $do_location = 1;
+my $do_end_times;
+my $start;
+my $end;
+
+my $label = 'Calendar';
+GetOptions (
+    "label=s"     => \$label,
+    "start=s"     => \$start,
+    "end=s"       => \$end,
+    "lead-time=i" => \$DEFAULT_LEAD_TIME,
+    "todos!"      => \$PROCESS_TODOS,
+    "iso8601!"    => \$iso8601,
+    "locations!"  => \$do_location,
+    "end-times!"  => \$do_end_times,
+    "heading=s"   => \$HEADING,
+    "help|?"      => \$help, 
+    "debug"       => \$debug,
+    "man"         => \$man
+) or pod2usage(1);
+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 = "";
+    }
+}
+print STDERR "Read all calendars\n" if $debug;
+my(%parser_opts) = ("debug" => $debug);
+if ($start) {
+    my $t = str2time($start);
+    die "Invalid time $start\n" if (! $t);
+    $parser_opts{'start'} = DateTime->from_epoch(epoch => $t);
+}
+if ($end) {
+    my $t = str2time($end);
+    die "Invalid time $end\n" if (! $t);
+    $parser_opts{'end'} = DateTime->from_epoch(epoch => $t);
+}
+print STDERR "About to parse calendars\n" if $debug;
+my $parser = iCal::Parser->new(%parser_opts);
+my $hash = $parser->parse_strings(@calendars);
+print STDERR "Calendars parsed\n" if $debug;
+
+##############################################################
+#
+# 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 $output;
+}
+
+
+#######################################################################
+#
+#  Main Program
+#
+######################################################################
+
+# Issue 8 https://github.com/jbalcorn/ical2rem/issues/8
+# Make sure there is a _sfun function declared in the reminder file.  We'll just make it do nothing here.
+print 'IF args("_sfun") < 1
+    FSET _sfun(x) choose(x,0)
+ENDIF
+';
+
+print _process_todos($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'} = $i;
+                        }
+                    }
+                    # Issue 9. Multi-day events have extra day with zero time. Mark this as the date not needed in reminders file so we can skip later
+                    #   Repeating multi-day events have the same uid so we need to mark each one.
+                    if ($event->{'DTSTART'} eq $event->{'DTEND'} and $event->{'DTEND'}->hour eq 0 and $event->{'DTEND'}->minute eq 0 and $event->{'DTEND'}->second eq 0) {
+                        $eventsbyuid{$uid}{$event->{'DTSTART'}->ymd} = 'rm';
+                    }
+                } 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'};
+                my $end = $event->{'DTEND'};
+                my $duration = "";
+                # Issue 9. All Day events create an event that has zero length and DTSTART and DTEND at 00:00 on last day. Marked while handling multi-day events. Ignore these
+                if ($start eq $end and $eventsbyuid{$uid}{$start->ymd} and $eventsbyuid{$uid}{$start->ymd} eq 'rm') {
+                    next;
+                }
+                if ($end and ($start->hour or $start->minute or $end->hour or $end->minute)) {
+                    # We need both an HH:MM version of the delta, to put in the
+                    # DURATION specifier, and a human-readable version of the
+                    # delta, to put in the message if the user requested it.
+                    my $seconds = $end->epoch - $start->epoch;
+                    my $minutes = int($seconds / 60);
+                    my $hours = int($minutes / 60);
+                    $minutes -= $hours * 60;
+                    $duration = sprintf("DURATION %d:%02d ", $hours, $minutes);
+                }
+                print "REM ";
+                if ($iso8601) {
+                    print $start->strftime("%F ");
+                } else {
+                    print $start->month_abbr." ".$start->day." ".$start->year." ";
+                }
+                print "$leadtime ";
+                if ($duration or $start->hour > 0 or $start->minute > 0) {
+                    print "AT ";
+                    print $start->strftime("%H:%M");
+                    print " SCHED _sfun ${duration}MSG %a %2 ";
+                } else {
+                    print "MSG %a ";
+                }
+                print "%\"", &quote($event->{'SUMMARY'});
+                print(" at ", &quote($event->{'LOCATION'}))
+                    if ($do_location and $event->{'LOCATION'});
+                print "\%\"";
+                if ($do_end_times and ($start->hour or $start->minute or
+                                       $end->hour or $end->minute)) {
+                    my $start_date = $start->strftime("%F");
+                    my $start_time = $start->strftime("%k:%M");
+                    my $end_date = $end->strftime("%F");
+                    my $end_time = $end->strftime("%k:%M");
+                    # We don't want leading whitespace; some strftime's support
+                    # disabling the pdding in the format string, but not all,
+                    # so for maximum portability we do it ourselves.
+                    $start_time =~ s/^\s+//;
+                    $end_time =~ s/^\s+//;
+                    my(@pieces);
+                    if ($start_date ne $end_date) {
+                        push(@pieces, $end_date);
+                    }
+                    if ($start_time ne $end_time) {
+                        push(@pieces, $end_time);
+                    }
+                    print " (-", join(" ", @pieces), ")";
+                }
+                print "%\n";
+            }
+        }
+    }
+}
+
+sub quote {
+    local($_) = @_;
+    s/\[/["["]/g;
+    return $_;
+}
+
+exit 0;
+#:vim set ft=perl ts=4 sts=4 tabstop=4 expandtab :

contrib/ical2rem.pl

@@ -1,279 +0,0 @@
-#!/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
-#	- Suppress 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 suppress
-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/remind-conf-mode/remind-conf-mode.el

@@ -109,18 +109,15 @@
 
 (defconst remind-keywords
   (sort
-   (list "ADDOMIT" "AFTER" "AT" "BANNER" "BEFORE"
-         "CAL" "CLEAR-OMIT-CONTEXT" "DEBUG" "DO" "DUMPVARS"
-         "DURATION" "ELSE" "ENDIF" "ERRMSG" "EXIT" "FIRST"
-         "FLUSH" "FOURTH" "FROM" "FSET" "IF" "IFTRIG" "IN"
-         "INCLUDE" "INCLUDECMD" "LAST" "LASTDAY"
-         "LASTWORKDAY" "MAYBE-UNCOMPUTABLE" "MSF"
-         "MSG" "OMIT" "OMITFUNC" "ONCE"
-         "POP-OMIT-CONTEXT" "PRESERVE" "PRIORITY" "PS" "PSFILE"
-         "PUSH-OMIT-CONTEXT" "REM" "RUN" "SATISFY" "SCANFROM"
-         "SCHED" "SECOND" "SET" "SKIP" "SPECIAL"
-         "TAG" "THIRD" "THROUGH" "UNSET" "UNTIL"
-         "WARN")
+   (list "ADDOMIT" "AFTER" "AT" "BAN" "BANNER" "BEFORE" "CAL" "CLEAR"
+         "CLEAR-OMIT-CONTEXT" "DEBUG" "DO" "DUMP" "DUMPVARS" "DURATION" "ELSE"
+         "ENDIF" "ERRMSG" "EXIT" "EXPR" "FIRST" "FLUSH" "FOURTH" "FROM" "FSET"
+         "FUNSET" "IF" "IFTRIG" "IN" "INC" "INCLUDE" "INCLUDECMD" "LAST"
+         "LASTDAY" "LASTWORKDAY" "MAYBE" "MAYBE-UNCOMPUTABLE" "MSF" "MSG"
+         "NOQUEUE" "OMIT" "OMITFUNC" "ONCE" "POP" "POP-OMIT-CONTEXT" "PRESERVE"
+         "PRIORITY" "PS" "PSFILE" "PUSH" "PUSH-OMIT-CONTEXT" "REM" "RUN"
+         "SATISFY" "SCAN" "SCANFROM" "SCHED" "SECOND" "SET" "SKIP" "SPECIAL"
+         "TAG" "THIRD" "THROUGH" "UNSET" "UNTIL" "WARN")
    #'(lambda (a b) (> (length a) (length b)))))
 
 
@@ -131,50 +128,57 @@
 
 (defconst remind-builtin-variables
   (sort
-   (list "$Ago" "$Am" "$And" "$April" "$At" "$August" "$CalcUTC" "$CalMode" "$Daemon" "$DateSep"
-         "$DateTimeSep" "$December" "$DefaultColor" "$DefaultPrio"
-         "$DefaultTDelta" "$DeltaOffset" "$DontFork" "$DontQueue"
-         "$DontTrigAts" "$EndSent" "$EndSentIg" "$February" "$FirstIndent"
-         "$FoldYear" "$FormWidth" "$Friday" "$Fromnow" "$Hour" "$Hplu" "$HushMode" "$IgnoreOnce"
-         "$InfDelta" "$IntMax" "$IntMin" "$Is" "$January" "$July" "$June" "$LatDeg"
-         "$Latitude" "$LatMin" "$LatSec" "$Location" "$LongDeg" "$Longitude"
-         "$LongMin" "$LongSec" "$March" "$MaxSatIter" "$MaxStringLen" "$May"
-         "$MinsFromUTC" "$Minute" "$Monday" "$Mplu" "$NextMode" "$November" "$Now" "$NumQueued"
-         "$NumTrig" "$October" "$On" "$Pm" "$PrefixLineNo" "$PSCal" "$RunOff" "$Saturday"
-         "$September" "$SimpleCal" "$SortByDate" "$SortByPrio" "$SortByTime"
-         "$SubsIndent" "$Sunday" "$SysInclude" "$T" "$Td" "$Thursday" "$TimeSep" "$Tm"
-         "$Today" "$Tomorrow" "$Tuesday" "$Tw" "$Ty" "$U" "$Ud" "$Um" "$UntimedFirst" "$Uw" "$Uy"
-         "$Was" "$Wednesday")
+   (list "$AddBlankLines" "$Ago" "$Am" "$And" "$April" "$At" "$August"
+         "$CalcUTC" "$CalMode" "$Daemon" "$DateSep" "$DateTimeSep" "$December"
+         "$DefaultColor" "$DefaultPrio" "$DefaultTDelta" "$DeltaOverride"
+         "$DontFork" "$DontQueue" "$DontTrigAts" "$EndSent" "$EndSentIg"
+         "$ExpressionTimeLimit" "$February" "$FirstIndent" "$FoldYear"
+         "$FormWidth" "$Friday" "$Fromnow" "$Hour" "$Hplu" "$HushMode"
+         "$IgnoreOnce" "$InfDelta" "$IntMax" "$IntMin" "$Is" "$January" "$July"
+         "$June" "$LatDeg" "$Latitude" "$LatMin" "$LatSec" "$Location"
+         "$LongDeg" "$Longitude" "$LongMin" "$LongSec" "$March" "$MaxFullOmits"
+         "$MaxLateMinutes" "$MaxPartialOmits" "$MaxSatIter" "$MaxStringLen"
+         "$May" "$MinsFromUTC" "$Minute" "$Monday" "$Mplu" "$NextMode"
+         "$November" "$Now" "$NumFullOmits" "$NumPartialOmits" "$NumQueued"
+         "$NumTrig" "$October" "$On" "$OnceFile" "$ParseUntriggered" "$Pm"
+         "$PrefixLineNo" "$PSCal" "$RunOff" "$Saturday" "$September"
+         "$SimpleCal" "$SortByDate" "$SortByPrio" "$SortByTime" "$SubsIndent"
+         "$Sunday" "$SuppressImplicitWarnings" "$SuppressLRM" "$SysInclude" "$T" "$Td"
+         "$TerminalBackground" "$Thursday" "$TimeSep" "$Tm" "$Today"
+         "$Tomorrow" "$Tt" "$Tuesday" "$Tw" "$Ty" "$U" "$Ud" "$Um"
+         "$UntimedFirst" "$Use256Colors" "$UseBGVTColors" "$UseTrueColors"
+         "$UseVTColors" "$Uw" "$Uy" "$Was" "$Wednesday")
    #'(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" "Thurs" "Fri" "Friday" "Saturday" "Sat" "Sun" "Sunday")
+   (list "Apr" "April" "Aug" "August" "Dec" "December" "Feb" "February"
+         "Jan" "January" "Jul" "July" "Jun" "June" "Mar" "March" "May"
+         "Nov" "November" "Oct" "October" "Sep" "September" "Fri"
+         "Friday" "Mon" "Monday" "Sat" "Saturday" "Sun" "Sunday" "Thu"
+         "Thursday" "Tue" "Tuesday" "Wed" "Wednesday")
    #'(lambda (a b) (> (length a) (length b)))))
 
-
 (defconst remind-builtin-functions
   (sort
-   (list "abs" "access" "adawn" "adusk" "ampm" "args" "asc" "baseyr" "char"
-         "choose" "coerce" "current" "date" "datepart" "datetime" "dawn" "day"
-         "daysinmon" "defined" "dosubst" "dusk" "easterdate" "evaltrig"
-         "filedate" "filedatetime" "filedir" "filename" "getenv" "hebdate"
-         "hebday" "hebmon" "hebyear" "hour" "iif" "index" "isany" "isdst"
-         "isleap" "isomitted" "language" "lower" "max" "min" "minsfromutc"
+   (list "abs" "access" "adawn" "adusk" "ampm" "ansicolor" "args" "asc"
+         "baseyr" "char" "choose" "coerce" "columns" "current" "date"
+         "datepart" "datetime" "dawn" "day" "daysinmon" "defined" "dosubst"
+         "dusk" "easterdate" "evaltrig" "filedate" "filedatetime" "filedir"
+         "filename" "getenv" "hebdate" "hebday" "hebmon" "hebyear" "hour"
+         "htmlescape" "htmlstriptags" "iif" "index" "isany" "isdst" "isleap"
+         "isomitted" "language" "localtoutc" "lower" "max" "min" "minsfromutc"
          "minute" "mon" "monnum" "moondate" "moondatetime" "moonphase"
-         "moontime" "ndawn" "ndusk" "nonomitted" "now" "ord" "ostype" "pad" "plural"
-         "psmoon" "psshade" "realcurrent" "realnow" "realtoday" "sgn" "shell"
-         "shellescape" "slide" "strlen" "substr" "sunrise" "sunset" "time"
-         "timepart" "today" "trig" "trigback" "trigdate" "trigdatetime"
-         "trigdelta" "trigduration" "trigeventduration" "trigeventstart"
-         "trigfrom" "trigger" "trigpriority" "trigrep" "trigscanfrom"
-         "trigtime" "trigtimedelta" "trigtimerep" "triguntil" "trigvalid"
-         "typeof" "tzconvert" "upper" "value" "version" "weekno" "wkday"
-         "wkdaynum" "year")
+         "moontime" "multitrig" "ndawn" "ndusk" "nonomitted" "now" "ord"
+         "orthodoxeaster" "ostype" "pad" "plural" "psmoon" "psshade"
+         "realcurrent" "realnow" "realtoday" "rows" "sgn" "shell" "shellescape"
+         "slide" "soleq" "stdout" "strlen" "substr" "sunrise" "sunset" "time"
+         "timepart" "timezone" "today" "trig" "trigback" "trigdate"
+         "trigdatetime" "trigdelta" "trigduration" "trigeventduration"
+         "trigeventstart" "trigfrom" "trigger" "trigpriority" "trigrep"
+         "trigscanfrom" "trigtags" "trigtime" "trigtimedelta" "trigtimerep"
+         "triguntil" "trigvalid" "typeof" "tzconvert" "upper" "utctolocal"
+         "value" "version" "weekno" "wkday" "wkdaynum" "year")
    #'(lambda (a b) (> (length a) (length b)))))
 
 ;;; faces
@@ -290,7 +294,7 @@
 
 (defconst remind-conf-font-lock-keywords-1
   (list
-   '("^[\;\#]\\s-+.*$" . remind-comment-face)
+   '("^\s*[\;\#].*$" . remind-comment-face)
    '(remind-keywords-matcher . remind-conf-keyword-face)
    '("%[\"_]" . font-lock-warning-face)
    '("\\(%[a-mops-w]\\)" . remind-conf-substitutes-face)

docs/README.UNIX

@@ -95,7 +95,7 @@ Norman Walsh.
 #!/usr/local/bin/wish
 wm withdraw .
 after 15000 { destroy . ; exit }
-tk_dialog .d { Message } $argv warning 0 { OK }
+tk_messageBox -message Message -detail $argv -icon info -type ok
 destroy .
 exit
 -------------- Cut Here ---------- Cut Here ---------- Cut Here -------------

docs/WHATSNEW

@@ -1,5 +1,370 @@
 CHANGES TO REMIND
 
+* VERSION 5.0 Patch 7 - 2024-10-16
+
+- NEW FEATURE: tkremind: Add option to create a desktop notification when
+  a queued reminder is triggered.  For Tcl/Tk 9.0 or later, uses the native
+  "tk sysnotify" facility.  For earlier versions of Tcl/Tk, executes the
+  "notify-send" program if possible.
+
+- NEW FEATURE: remind: Add --print-config-cmd option which prints the
+  exact ./configure command used to build Remind.  This will let you
+  configure future Remind releases exactly the same way an installed
+  version was configured.
+
+- UPDATE: include/holidays/ca.rem: Add National Day for Truth and
+  Reconciliation to Canadian holiday list.
+
+- MINOR IMPROVEMENTS: Update examples/ansitext and examples/astro
+
+- MINOR IMPROVEMENT: remind: Use HashPJW to hash variable and function
+  names; make the hash table size a prime rather than a power of two.
+  This seems to improve hash performance ever so slightly in most cases.
+
+- UPDATE: Update contrib/ical2rem to upstream version 0.7.1
+
+- FIX: tkremind: Make tkremind work with Tcl/Tk 8.5 or higher, including
+  Tcl/Tk 9.0
+
+- MINOR CHANGE: remind: Add hash table statistics to "-ds" debugging
+  output.  This is probably of no use to anyone except the author of
+  Remind.
+
+* VERSION 5.0 Patch 6 - 2024-09-16
+
+- NEW FEATURE: remind: Include a file containing the dates of Chinese
+  New Year through 2050.
+
+- NEW FEATURE: remind: Add $SuppressImplicitWarnings system variable.
+  Setting this to 1 suppresses the warnings "Unrecognized command;
+  interpreting as REM" and "Missing REM type; assuming MSG"
+
+- NEW FEATURE: remind: Add --print-tokens command-line argument.  This
+  simply prints all of Remind's built-in tokens, functions, and system
+  variables.  It's designed to help people who are writing editor
+  add-ons for syntax highlighting.
+
+- CHANGE: remind: allow '12:34' to be parsed as a TIME constant.  This
+  matches DATEs and DATETIMEs which are enclosed in single-quotes.
+  (The quotes are optional for TIME constants, however.)
+
+- IMPROVEMENT: Improve many error messages and warnings.
+
+- UPDATE: contrib/ical2rem: Update to upstream version 0.7
+
+- IMPROVEMENT: contrib/remind-conf-mode: Improve the Emacs
+  remind-conf-mode package.  Add new keywords and make comment
+  highlighting correct.
+
+- FIX: remind man page: Remove note saying REM can be omitted.
+
+* VERSION 5.0 Patch 5 - 2024-09-02
+
+- CHANGE: remind: When using the "-c" option and with the SHADE special
+  enabled, shade the entire calendar box including the line containing the
+  day number.
+
+- IMPROVEMENT: remind: Better error messages when diagnosing certain
+  errors in expressions.
+
+- IMPROVEMENT: include/holidays/jewish.rem: Remove unnecessary _h()
+  function definition.
+
+- BUG FIX: remind: In a couple of spots when we parsed a character, we did
+  not check for an error return.  This has been fixed.
+
+- BUG FIX: remind: Fix edge-case bugs in "remind -c" output formatting.
+
+- BUG FIX: make test: Fix a test that was broken for all of September 2024.
+
+- BUG FIX: remind: Fix a couple of potential file-descriptor leaks.
+
+- BUG FIX: contrib/ical2rem.pl: Replace "SCHED _sfun" with "+15" to
+  hard-code 15-minutes advance warning rather than using an undefined
+  scheduling function.  If this is not what you want, you should edit
+  ical2rem.pl to suit your taste; it's not officially part of Remind and
+  is meant more as a starting point for you to customize than a finished
+  product.
+
+- DOCUMENTATION FIX: Remove obsolete info from Remind man page.
+
+* VERSION 5.0 Patch 4 - 2024-08-29
+
+- IMPROVEMENT: remind: When checking if a SATISFY expression refers to the
+  trigger date, look recursively at any user-defined functions it calls.
+  This reduces spurious warnings.
+
+- CHANGE: remind: Allow any type to be used as the test argument for IIF.
+
+- IMPROVEMENT: remind man page: Clarify how various types are treated
+  in boolean context.
+
+* VERSION 5.0 Patch 3 - 2024-08-28
+
+- IMPROVEMENT: remind: Preserve newlines ("%_" sequences) in calendar
+  mode in most cases.  See the remind man page for details.
+
+- IMPROVEMENT: rem2pdf: rem2pdf can now produce PostScript and
+  Encapsulated PostScript output in addition to PDF and SVG.
+
+- IMPROVEMENT: remind: Emit warnings if a subst_XXX function takes the
+  wrong number of arguments, or for custom sequences, if the function
+  is not defined.
+
+- IMPROVEMENT: remind: Emit warnings if WARN/SCHED/OMITFUNC functions
+  do not reference their argument.
+
+- IMPROVEMENT: remind: Allow strings to be used with logical
+  operators.  The empty string "" is considered false and all other
+  strings are considered true.
+
+- IMPROVEMENT: remind: Emit warnings for lines that are implicitly
+  treated as REM commands; add warnings for REM commands that are
+  implicitly treated as MSG-type reminders.
+
+- IMPROVEMENT: remind: Add an optional fourth argument to the built-in
+  ampm() function that specifies not to suppress a leading zero in the
+  hour component.
+
+- IMPROVEMENT: remind: If a SATISFY expression is not constant and
+  doesn't reference the trigger date somehow, issue a warning.
+
+- IMPROVEMENT: remind: Add a warning if a user-defined function is
+  redefined.  If you do have a use-case that requires you to redefine
+  a function, simply FUNSET it first before FSETting it for the second
+  time.
+
+- DOCUMENTATION FIX: Clarify man pages and remove some information that
+  has become incorrect as Remind has evolved.
+
+- BUG FIX: Fix typos in man pages
+
+* VERSION 5.0 Patch 2 - 2024-07-26
+
+- IMPROVEMENT: Remind: Revamp how ONCE works.  You can now set a
+  special variable $OnceFile to be the path to a timestamp file.  The
+  ONCE directive uses this timestamp file to track when it was last
+  run rather than the access date of the main reminder script.  This
+  is more reliable because it doesn't rely on the atime of a file
+  (which might not be maintained accurately) and is not affected if
+  you edit your reminder script.
+
+- CHANGE: Taking input from stdin no longer implies the "-o" option; ONCE can
+  work if you set $OnceFile
+
+- CHANGE: Any of the -c, -n, -p and -s options implicitly enable the
+  -o option.  As before, specifying a repeat factor *N or a date that
+  is not today on the command-line also implies -o.
+
+- MINOR NEW FEATURE: Rem2PDF: Add the "--svg" command-line option to produce
+  SVG output rather than PDF.
+
+- MINOR IMPROVEMENT: Remind: Improve the storage efficiency of short
+  string constants in compiled expression trees.
+
+- MINOR IMPROVEMENT: Remind: Remove some obsolete macro definitions
+
+* VERSION 5.0 Patch 1 - 2024-06-08
+
+- MINOR IMPROVEMENT: Add short-circuit evaluation to the isany() function,
+  which now only evaluates those arguments absolutely necessary to determine
+  the result.
+
+- BUG FIX: Mark weekno() as a non-constant function (the zero-argument form
+  depends on external conditions.)
+
+- BUG FIX: Fix a couple of memory leaks.
+
+- BUG FIX: Don't rely on support for unnamed function parameters; this caused
+  compilation failures with older versions of gcc.
+
+* VERSION 5.0 Patch 0 - 2024-06-06
+
+- MAJOR CHANGE: The expression evaluation engine has been completely replaced
+  with a new one that splits parsing and evaluating into two separate steps.
+  It also features short-circuit evaluation of &&, ||, iif() and choose().
+  This should speed up expression-heavy reminder files.
+
+  NOTE INCOMPATIBILITY: In expressions with side-effects, the short-circuit
+  evaluation might change the result you get.  For example, consider
+  running the following file through: remind file.rem 2024-06-04
+
+    SET a trig("Mon +7") || trig("Thu +7")
+    MSG trig = [trig()]
+
+  Older Remind versions will output:
+
+    trig = 2024-06-06
+
+  whereas this version outputs:
+
+    trig = 2024-06-10
+
+  because the second part of the "||" expression is not evaluated.  The vast
+  majority of Remind expressions do not have side-effects and should yield
+  the same results as before.
+
+  The newer expression engine also permits recursive functions, but
+  these are not recommended.  Still, if you want to, you can do:
+
+    fset factorial(n) iif(n <= 1, 1, n*factorial(n-1))
+
+  and it will work for values of n that don't cause integer overflow.
+
+- IMPROVEMENT: If there's an unmatched PUSH-OMIT-CONTEXT, print the
+  filename and line number containing it.
+
+- IMPROVEMENT: If there's an IF with a missing ENDIF, print the filename
+  and line number of the IF statement.
+
+- NEW FEATURE: Add EXPR OFF command to completely disable expression
+  evaluation.  Useful if you INCLUDE files that you don't expect to
+  contain expressions and may come from slightly untrustworthy sources.
+
+- NEW FEATURE: Add $ExpressionTimeLimit system variable to enforce a
+  maximum limit on how long evaluating an expression is allowed to take.
+
+- NEW FEATURE: Add --max-execution-time=n command-line option to terminate
+  Remind if it runs for more than n seconds.
+
+- CHANGE: Make the command-line option "-ifoo" equivalent to "-ifoo=0"
+
+- CHANGE: Permit a literal [ in a reminder by using the sequence [[
+  The old ["["] still works.
+
+- BUG FIX: In "purge" mode, Remind would sometimes purge reminders with
+  a relative "SCANFROM" which haven't actually expired.  This has been fixed.
+
+- BUG FIX: Disallow something like: FSET func(x, x) expr
+  which shouldn't have been allowed in the first place.
+
+- BUG FIX: Replace leading spaces with tabs in Makefiles (per Emanuele Torre
+  and Tim Chase)
+
+* VERSION 4.3 Patch 7 - 2024-04-29
+
+- IMPROVEMENT: build.tk: Add a note if build.tk obtains default settings
+  from an existing Remind installation.
+
+- IMPROVEMENT: configure: Pass all args to AC_INIT including the Remind
+  home page.  Remove some unused autoconf cruft.
+
+- IMPROVEMENT: Use standard C library versions of strdup, strcasecmp and
+  strncasecmp where available, rather than using our own versions.
+
+- MINOR FEATURE: remind: Make $Tt a synonym for trigtime().
+
+- BUG FIX: remind: Make sure shellescape() doesn't mangle UTF-8 characters
+  with high-bits set.
+
+- BUG FIX: remind: Don't rely on undefined behavior of "%" operator in
+  the ord() built-in function.
+
+- BUG FIX: remind: Do not clear out trigtime() unnecessarily.  Before,
+  you could not write things like the following; now you can:
+
+      REM Tue AT 11:30 DURATION 0:30 MSG Thing 1
+      REM Tue AT [trigtime()+trigduration()] DURATION 1:00 MSG Thing 2
+      REM Tue AT [trigtime()+trigduration()] DURATION 0:45 MSG Thing 3
+
+  for successive reminders that should be moved as a block if the time of
+  the first one changes.
+
+- BUG FIX: Don't update trigdate() or trigtime() while parsing a REM
+  statement... only when actually computing the trigger.
+
+* VERSION 4.3 Patch 6 - 2024-04-02
+
+- NEW FILE: Add [$SysInclude]/holidays/pt.rem - Portuguese holidays, courtesy
+  of Joop Kiefte.
+
+- BUG FIX: remind: Fix compile error on systems that don't support inotify(7).
+
+- BUG FIX: remind: Fix test failures on FreeBSD.  On FreeBSD, you have to copy
+  the result of getenv() or else a subsequent setenv() can change the stored
+  value.
+
+* VERSION 4.3 Patch 5 - 2024-04-01
+
+- IMPROVEMENT: remind: Use inotify to detect reminder file changes
+  even in regular daemon mode (-zn where n>0).
+
+- INTERNAL IMPROVEMENTS: Rearrange and refactor some code.
+
+- FIXES: Various fixes and improvements to man pages.
+
+- BUG FIX: remind: Handle queued "SPECIAL COLOR" reminders correctly.
+
+- BUG FIX: remind: Preserve the value of $DefaultColor that was in effect
+  when a reminder was queued; restore it before issuing the queued reminder.
+
+* VERSION 4.3 Patch 4 - 2024-03-25
+
+- NEW FEATURE: remind: Add the new "multitrig" function, which is how "trig"
+  should have worked in the first place.  See man page for details.
+
+- IMPROVEMENT: tkremind: Make errors in your reminders file stand out more
+  prominently.
+
+- IMPROVEMENT: tkremind: If you click on an error in the "Errors..." popup,
+  tkremind will open a text editor on the offending file and line.
+
+- IMPROVEMENT: tkremind: Format the "Queue..." output better and make queue
+  items clickable; clicking on a queue item opens a text editor on the
+  corresponding file and line.
+
+- IMPROVEMENT: Add a standard [$SysInclude]/moonphases.rem file to display
+  moon phases on your calendar.
+
+- IMPROVEMENT: Clean up the demo code in www/ and add PDF output.
+
+- BUG FIX: tkremind: Correctly handle filenames containing spaces and other
+  characters that tend to confuse the shell.
+
+- BUG FIX: tkremind: Raise dialog boxes after errors so that they
+  remain visible.
+
+- CLEANUP: tkremind: Remove some dead code.
+
+* VERSION 4.3 Patch 3 - 2024-03-18
+
+- IMPROVEMENT: tkremind: Update icon to include a white border so it shows
+  up better on dark backgrounds.
+
+- IMPROVEMENT: C code: Fix a number of cppcheck static-analysis warnings.
+
+- IMPROVEMENT: remind: Update the "-zj" protocol to include a queue-id for
+  each queued reminder and add the DEL client command to delete a specific
+  item from the queue.  Used by tkremind to implement "don't remind me about
+  this again today."
+
+- MINOR NEW FEATURE: Add a "-ds" debugging flag to print out expression-parsing
+  stack high-water marks on exit.  This esoteric feature is of no use to
+  anyone but the Remind author.
+
+- IMPROVEMENT: tkremind: Stop using the deprecated tk_dialog command in favor
+  of the newer tk_messageBox command.
+
+- IMPROVEMENT: remind: In server mode, try to minimize redraws by
+  consuming inotify events until at least 0.2s elapses without an
+  event appearing.
+
+- BUG FIX: tkremind:  The "Don't remind me about this again today" feature
+  was unreliable and only worked for reminders created with TkRemind itself.
+  It has been made more reliable and works with any reminder.
+
+- BUG FIX: remind: Make it a syntax error if a local OMIT in a REM statement
+  is not followed by at least one weekday name.
+
+* VERSION 4.3 Patch 2 - 2024-03-01
+
+- BUG FIX: remind: Fix a logic error when implementing the RUN command in
+  server mode.  As it turns out, the error is harmless, but it's best to do
+  things correctly.
+
+- BUG FIX: The Makefile would install the tkremind.png and tkremind.desktop
+  files in the wrong location.  This has been fixed.
+
 * VERSION 4.3 Patch 1 - 2024-02-29
 
 - BUG FIX: tests:  "make test" could fail because of a bad test.  This
@@ -961,7 +1326,7 @@ CHANGES TO REMIND
 
 - MINOR IMPROVEMENT: Add the "ampm()" built-in function.
 
-* Version 3.3 Patch 0 - 2020-01-31
+* VERSION 3.3 Patch 0 - 2020-01-31
 
 - FIX: rem2ps: Add a %%PageBoundingBox: document structuring convention
   comment.
@@ -996,7 +1361,7 @@ CHANGES TO REMIND
 - CHANGE: SPECIALs are now case-insensitive.  Before, only SPECIAL COLOR
   would work.  Now you can use Special Color, special color, etc.
 
-* Version 3.2 Patch 0 - 2020-01-03
+* VERSION 3.2 Patch 0 - 2020-01-03
 
 - IMPROVEMENT: Add support for events spanning multiple days (with AT
   and DURATION).  Add trigeventstart() and trigeventduration()
@@ -1038,7 +1403,7 @@ CHANGES TO REMIND
 - BUG FIX: TkRemind: Fix startup failure of TkRemind if options are at
   default. :(
 
-* Version 3.1 Patch 17 - 2019-11-15
+* VERSION 3.1 Patch 17 - 2019-11-15
 
 - IMPROVEMENT: Add "Extra Remind Options" setting to TkRemind.
 
@@ -1055,7 +1420,7 @@ CHANGES TO REMIND
 
 - BUG FIX: Fix various documentation errors and update man page.
 
-* Version 3.1 Patch 16 - 2018-11-09
+* VERSION 3.1 Patch 16 - 2018-11-09
 
 - IMPROVEMENT: Add patch from Stephen Morgan to calculate astronomical and
   nautical twilight in addition to civil twilight.
@@ -1085,7 +1450,7 @@ CHANGES TO REMIND
 - BUG FIX: In "remind -z0" mode, remind wakes up exactly on the minute instead
   of sleeping for 60 seconds each time, which could cause it to fall behind.
 
-* Version 3.1 Patch 15 - 2015-07-27
+* VERSION 3.1 Patch 15 - 2015-07-27
 
 - BUG FIX: Fix a buffer overflow found by Alexander Keller
 
@@ -1095,7 +1460,7 @@ CHANGES TO REMIND
 
 - BUG FIX: Make parser reject repeated delta or *repeat values.
 
-* Version 3.1 Patch 14 - 2015-04-24
+* VERSION 3.1 Patch 14 - 2015-04-24
 
 - NEW FEATURE: Putting the line __EOF__ in a .rem file causes Remind
   to treat it as end-of-file.
@@ -1112,7 +1477,7 @@ CHANGES TO REMIND
 
 - BUG FIX: Typo in Spanish translation was fixed.
 
-* Version 3.1 Patch 13 - 2013-03-22
+* VERSION 3.1 Patch 13 - 2013-03-22
 
 - BUG FIX: Sunrise/Sunset calculations greatly improved thanks to John
   McGowan.  Accuracy should now be within a couple of minutes in most
@@ -1129,7 +1494,7 @@ CHANGES TO REMIND
 
 - BUG FIX: Spurious test harness failure was fixed.
 
-* Version 3.1 Patch 12 - 2012-01-23
+* VERSION 3.1 Patch 12 - 2012-01-23
 
 - NEW FEATURE: Many substitution sequences "%x" have an alternate mode
   denoted by "%*x".  This alternate mode leaves out prepositions.  For
@@ -1141,7 +1506,7 @@ CHANGES TO REMIND
   so the results may be off by a minute or two compared to previous versions
   of Remind.
 
-* Version 3.1 Patch 11 - 2011-12-16
+* VERSION 3.1 Patch 11 - 2011-12-16
 
 - BUG FIX: For some inexplicable reason, dawn was considered to happen when
   the sun was 14 degrees below the horizon instead of the standard 6
@@ -1155,7 +1520,7 @@ CHANGES TO REMIND
 
 - BUG FIX: Apply minor Debian cleanups reported by Kurt B. Kaiser.
 
-* Version 3.1 Patch 10 - 2010-11-01
+* VERSION 3.1 Patch 10 - 2010-11-01
 
 - NOTE: This is the 20th anniversary of Remind's first public release.
 
@@ -1179,7 +1544,7 @@ CHANGES TO REMIND
 - BUG FIX: Don't declare variables in the middle of statements (old C
   compilers choke.)
 
-* Version 3.1 Patch 9 - 2010-06-20
+* 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.
@@ -1195,7 +1560,7 @@ CHANGES TO 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
+* VERSION 3.1 Patch 8 - 2010-03-09
 
 - ENHANCEMENT: Include some useful scripts in contrib/
 
@@ -1215,7 +1580,7 @@ CHANGES TO REMIND
 - 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
+* VERSION 3.1 Patch 7 - 2009-05-31
 
 - ENHANCEMENT: Wherever you could write "day Mon year", the parser now
   accepts "YYYY-MM-DD".  This applies on the command-line and to the
@@ -1224,7 +1589,7 @@ CHANGES TO REMIND
 
 - ENHANCEMENT: New slide() built-in function eases some complicated reminders.
 
-* Version 3.1 Patch 6 - 2008-11-16
+* VERSION 3.1 Patch 6 - 2008-11-16
 
 - MAJOR ENHANCEMENT: A new OMITFUNC clause gives you additional
   control and flexibility over "omitted days" calculations.  This is
@@ -1252,7 +1617,7 @@ CHANGES TO REMIND
   weekday would fail if it needed to cross a year boundary.  This has
   been fixed.
 
-* Version 3.1 Patch 5 - 2008-04-15
+* VERSION 3.1 Patch 5 - 2008-04-15
 
 - MAJOR ENHANCEMENT: If you supply a directory name on the command line
   or for an INCLUDE command, then Remind reads all *.rem file in that
@@ -1282,7 +1647,7 @@ CHANGES TO REMIND
 
 - BUG FIX: Parse error in calendar mode was fixed.
 
-* Version 3.1 Patch 4 - 2008-02-03
+* VERSION 3.1 Patch 4 - 2008-02-03
 
 - ENHANCEMENT: tkremind respects the "-b1" option and operates in 24-hour
   clock mode if the option is supplied.
@@ -1304,7 +1669,7 @@ CHANGES TO REMIND
 - BUG FIX: The "-ivar=value" command-line option failed if Remind re-execed
   itself because we overwrote argv[].  This has been fixed.
 
-* Version 3.1 Patch 3 - 2007-10-15
+* VERSION 3.1 Patch 3 - 2007-10-15
 
 + MINOR ENHANCEMENTS
 
@@ -1323,7 +1688,7 @@ CHANGES TO REMIND
   is not evaluated.  This helps avoid spurious error messages in some
   reminders.
 
-* Version 3.1 Patch 2 - 2007-09-12
+* VERSION 3.1 Patch 2 - 2007-09-12
 
 + MINOR ENHANCEMENTS
 
@@ -1377,7 +1742,7 @@ CHANGES TO REMIND
 - Using the psshade() or psmoon() functions emits a warning on stderr.  You
   should use SPECIAL SHADE or SPECIAL MOON instead.
 
-* Version 3.1 Patch 1 - 2007-08-23
+* VERSION 3.1 Patch 1 - 2007-08-23
 
 + MAJOR ENHANCEMENTS
 
@@ -1407,7 +1772,7 @@ CHANGES TO REMIND
 
 - Various man-page fixes.
 
-* Version 3.1 Patch 0 - 2007-07-14
+* VERSION 3.1 Patch 0 - 2007-07-14
 
 + MAJOR ENHANCEMENTS
 
@@ -1470,7 +1835,7 @@ CHANGES TO REMIND
 - rem2ps would produce invalid PostScript in some rare cases
   (eg, for February 2007).  This has been fixed.
 
-* Version 3.0 Patch 24 - 2005-11-19
+* VERSION 3.0 Patch 24 - 2005-11-19
 
 + MINOR ENHANCEMENTS
 
@@ -1493,7 +1858,7 @@ CHANGES TO REMIND
 - Fixed a bug in the tokenizer that could make Remind segfault.  Fix courtesy
   of Stan Tobias.
 
-* Version 3.0 Patch 23 - 2005-04-14
+* VERSION 3.0 Patch 23 - 2005-04-14
 
 + MINOR ENHANCEMENTS
 
@@ -1517,7 +1882,7 @@ CHANGES TO REMIND
 
 - Fixed parser error for unterminated date constant: '2005/01/01
 
-* Version 3.0 Patch 22 - 2000-06-16
+* VERSION 3.0 Patch 22 - 2000-06-16
 
 + MINOR ENHANCEMENTS
 
@@ -1539,7 +1904,7 @@ CHANGES TO REMIND
 - Fixed serious bug in which background queued reminders were ignored and
   Remind simply exited.  Doh!  Sorry about that.
 
-* Version 3.0 Patch 21 - 2000-03-15
+* VERSION 3.0 Patch 21 - 2000-03-15
 
 + MINOR ENHANCEMENTS
 
@@ -1570,7 +1935,7 @@ CHANGES TO REMIND
 
 - Fixed compilation problem on FreeBSD, IRIX, Tru64 and other UNIXes.
 
-* Version 3.0 Patch 20 - 1999-04-12
+* VERSION 3.0 Patch 20 - 1999-04-12
 
 + LICENSE CHANGE
 
@@ -1592,7 +1957,7 @@ CHANGES TO REMIND
 
 - Fixed a typo in danish.h, courtesy of  Niels Kristian Bech Jensen.
 
-* Version 3.0 Patch 19 - 1998-05-09
+* VERSION 3.0 Patch 19 - 1998-05-09
 
 + MAJOR ENHANCEMENTS
 
@@ -1634,7 +1999,7 @@ CHANGES TO REMIND
 - Lots more silly little bugs squashed -- too many to go into in
   detail.
 
-* Version 3.0 Patch 18 - 1998-02-15
+* VERSION 3.0 Patch 18 - 1998-02-15
 
 + MAJOR ENHANCEMENTS
 
@@ -1698,7 +2063,7 @@ CHANGES TO REMIND
 - Getting rid of fixed-sized buffers meant lots of changes to code.
   No doubt, I missed a few regression tests.
 
-* Version 3.0 Patch 17 - 1997-09-07
+* VERSION 3.0 Patch 17 - 1997-09-07
 
 + MINOR ENHANCEMENTS
 
@@ -1739,7 +2104,7 @@ CHANGES TO REMIND
   library.  All three of these fixes are courtesy of Christopher
   J. Madsen <madsen@iglobal.net>.  Thanks, Christopher.
 
-* Version 3.0 Patch 16 - 1997-02-11
+* VERSION 3.0 Patch 16 - 1997-02-11
 
 + MINOR ENHANCEMENTS
 
@@ -1767,7 +2132,7 @@ CHANGES TO REMIND
 - Fixed a problem under Solaris 2.5 whereby rem2ps was skipping some
   latin1 characters which it interpreted as white space.
 
-* Version 3.0 Patch 15 - 1996-10-27
+* VERSION 3.0 Patch 15 - 1996-10-27
 
 + IMPORTANT NOTES
 
@@ -1797,7 +2162,7 @@ CHANGES TO REMIND
 - Fixed bug in TkRemind which caused a crash if the "-m" option was used
   for a month beginning on Sunday.  Doh!!!
 
-* Version 3.0 Patch 14 - 1996-05-25
+* VERSION 3.0 Patch 14 - 1996-05-25
 
 + CHANGE IN COPYING POLICY
 
@@ -1856,7 +2221,7 @@ CHANGES TO REMIND
   _not_ support MS Windows, and in fact do not allow Remind to run
   under Windows (see COPYRIGHT).
 
-* Version 3.0 Patch 13 - 1994-05-06
+* VERSION 3.0 Patch 13 - 1994-05-06
 
 + MINOR ENHANCEMENTS
 
@@ -1891,7 +2256,7 @@ CHANGES TO REMIND
 
 - Updated the copyright notices everywhere.
 
-* Version 3.0 Patch 12 - 1994-02-01
+* VERSION 3.0 Patch 12 - 1994-02-01
 
 + MINOR ENHANCEMENTS
 
@@ -1910,7 +2275,7 @@ CHANGES TO REMIND
 - Fixed a problem with the '-k' option which resulted in a newline being
   placed after the message text.  This was giving sh(1) heartburn...
 
-* Version 3.0 Patch 11 - 1993-11-26
+* VERSION 3.0 Patch 11 - 1993-11-26
 
 + MINOR ENHANCEMENTS
 
@@ -1942,7 +2307,7 @@ CHANGES TO REMIND
 
 - Fixed typos in french.h
 
-* Version 3.0 Patch 10
+* VERSION 3.0 Patch 10
 
 + MAJOR ENHANCEMENT
 
@@ -1990,7 +2355,7 @@ CHANGES TO REMIND
 
 - Fixed the Finnish language support which was missing a few newlines.
 
-* Version 3.0 Patch 9 - 1993-10-04
+* VERSION 3.0 Patch 9 - 1993-10-04
 
 + NOTES
 
@@ -2047,7 +2412,7 @@ CHANGES TO REMIND
   so that newlines in the body start new paragraphs, rather than being
   swallowed as white-space.
 
-* Version 3.0 Patch 8 - 1993-09-08
+* VERSION 3.0 Patch 8 - 1993-09-08
 
 + MAJOR ENHANCEMENTS
 
@@ -2099,7 +2464,7 @@ CHANGES TO REMIND
   range [-128, 255] (but not 0) so that char(asc(s)) works even
   on machines with signed char types.
 
-* Version 3.0 Patch 7 - 1993-07-22
+* VERSION 3.0 Patch 7 - 1993-07-22
 
 + MAJOR ENHANCEMENTS
 
@@ -2142,7 +2507,7 @@ CHANGES TO REMIND
 - Changed kall so that "kall sh" doesn't commit suicide - patch courtesy
   of Michael Salmon.
 
-* Version 3.0 Patch 6 - 1993-05-05
+* VERSION 3.0 Patch 6 - 1993-05-05
 
 + MINOR ENHANCEMENTS
 
@@ -2165,7 +2530,7 @@ CHANGES TO REMIND
 - Fixed a bug in the -u option which sometimes caused a core dump
   (embarrassed grin!)  The fix is due to Tina Hoeltig.  Thanks, Tina!
 
-* Version 3.0 Patch 5 - 1993-04-27
+* VERSION 3.0 Patch 5 - 1993-04-27
 
 + MAJOR ENHANCEMENTS:
 
@@ -2200,7 +2565,7 @@ CHANGES TO REMIND
 
 - Fixed a bug in the man page - thanks to Ed Oskiewicz.
 
-* Version 3.0 Patch 4 - 1993-03-08
+* VERSION 3.0 Patch 4 - 1993-03-08
 
 - Added the -g option - this sorts reminders by date/time before
   issuing them.  (You can see I'm running out of letters to
@@ -2259,13 +2624,13 @@ CHANGES TO REMIND
 
 - Put my new mailing address in the README files.
 
-* Version 3.0 Patch 3 - 1993-02-21
+* VERSION 3.0 Patch 3 - 1993-02-21
 
 - Corrected bugs in Remind and Rem2PS.  No new features added.  You
   should NOT use patch level 2 - either stick to 3.0.1 or upgrade to
   3.0.3.
 
-* Version 3.0 Patch 2 - 1993-02-04
+* VERSION 3.0 Patch 2 - 1993-02-04
 
 - Added the -u option to Remind so that root can run it as any user.
   This simplifies the remind-all scripts, and makes them more efficient.
@@ -2305,7 +2670,7 @@ CHANGES TO REMIND
 - Changed Remind so that supplying the -a option causes timed reminders
   not to be placed into the calendar in calendar mode.
 
-* Version 3.0 Patch 1 - 1992-12-18
+* VERSION 3.0 Patch 1 - 1992-12-18
 
 - Wrote the Rem2ps program to produce PostScript calendars
 
@@ -2345,7 +2710,7 @@ CHANGES TO REMIND
 
 - Re-formatted the WHATSNEW.30 file.
 
-* Version 3.0 - 1992-11-09
+* VERSION 3.0 - 1992-11-09
 
 - Total rewrite from previous versions
 
@@ -2366,23 +2731,23 @@ CHANGES TO REMIND
 - Fixed a lurking bug in trigger date calculation which, amazingly, had not
   been caught in the couple of years that Remind has been out!
 
-* Version 2.3 Patch 5 - 1992-04-11
+* VERSION 2.3 Patch 5 - 1992-04-11
 
 - Added the "c+n" option for printing a calendar by
   weeks instead of months, courtesy Dennis Cottel (dennis@peanuts.nosc.mil).
 
-* Version 2.3 Patch 4 - 1991-11-06
+* VERSION 2.3 Patch 4 - 1991-11-06
 
 - Made the init.c file nicer.  Made the Makefile
   prettier.  Added "make test", "make tar" and "make shar" Makefile targets.
 
-* Version 2.3 Patch 3 - 1991-09-11
+* VERSION 2.3 Patch 3 - 1991-09-11
 
 - Added a command-line option for Remind to process
   queued reminders in the foreground.  This makes automatic termination
   of Remind processes from within X-Windows and Sunview easier.
 
-* Version 2.3 Patch 2 - 1991-07-19
+* VERSION 2.3 Patch 2 - 1991-07-19
 
 - Fixed up a problem with timed reminders which resulted
   in cursor not starting from left side of screen on some systems.
@@ -2399,7 +2764,7 @@ CHANGES TO REMIND
 
 - Made the Makefile more portable
 
-* Version 2.3 Patch 1 - 1991-03-08
+* VERSION 2.3 Patch 1 - 1991-03-08
 
 - Added the "-t" command-line option to get Remind
   to trigger all non-expired reminders.
@@ -2413,7 +2778,7 @@ CHANGES TO REMIND
 
 - Added manual pages for "kall" and "rem".
 
-* Version 2.3 - 1991-02-20
+* VERSION 2.3 - 1991-02-20
 
 - Added the UNTIL keyword for forcing reminders to expire.
 
@@ -2435,32 +2800,32 @@ CHANGES TO REMIND
 - Modified the calendar and SimpleCalendar formats so that the % escape
   substitutions ARE performed.
 
-* Version 2.2 - Patch 5 - 1990-12-03
+* VERSION 2.2 - Patch 5 - 1990-12-03
 
 - Added the BEFORE, AFTER and SKIP tokens to make the
   handling of holidays more sensible.  Also corrected a few more bugs.
 
-* Version 2.2 - Patch 3 - 1990-11-28
+* VERSION 2.2 - Patch 3 - 1990-11-28
 
 - Added the MSG or RUN tokens in an OMIT command; also
   allowed RUN-type reminders to be explicitly included in the calendar by
   using the %" escape sequence.
 
-* Version 2.2 - 1990-11-16
+* VERSION 2.2 - 1990-11-16
 
 - Added the AT keyword, the timed reminders daemon, and the
   calendar facility.
 
-* Version 2.1 - 1990-11-06
+* VERSION 2.1 - 1990-11-06
 
 - Added the "repeat" token for repeating reminders with a period
   other than 7 days.  Also fixed some bugs from version 2.0
 
-* Version 2.0 - 1990-11-01
+* VERSION 2.0 - 1990-11-01
 
 - first public release.  Included advanced date specifications,
   character substitution, and the RUN keyword.
 
-* Version 1.0
+* VERSION 1.0
 
 - never publicly released.

examples/ansitext

@@ -26,7 +26,10 @@ MSG This is [ansicolor(0,255,0)]green.[ansicolor("")]
 MSG This is [ansicolor(0,0,255)]blue.[ansicolor("")]
 MSG This is [ansicolor(255,255,0)]yellow.[ansicolor("")]
 MSG This is [ansicolor(255,0,255)]magenta.[ansicolor("")]
-MSG This is [ansicolor(0,255,255)]cyan.[ansicolor("")]%_
+MSG This is [ansicolor(0,255,255)]cyan.[ansicolor("")]
+MSG This is [ansi_bold][ansicolor(255,255,255)][ansicolor(0,0,0,1)]white on black[ansicolor("")][ansi_normal]
+MSG This is [ansi_bold][ansicolor(0,0,0)][ansicolor(255,255,255,1)]black on white[ansicolor("")][ansi_normal]
+MSG %_
 
 # You can combine attributes
 MSG This is [ansicolor(0,255,0)][ansicolor(0,0,96,1)][ansi_italic][ansi_bold]Green-Bold-Italic-on-Blue[ansi_normal][ansicolor("")]

examples/astro

@@ -5,9 +5,6 @@
 # Best used in a UTF-8 environment.
 # SPDX-License-Identifier: GPL-2.0-only
 
-# Set this variable to 1 if your terminal has a dark background or 0 if
-# it: light.
-
 # Set your latitude and longitude correctly for Sunrise/Sunset/Equinox/Solstice
 #
 # The values below are for Ottawa, Ontario, Canada
@@ -20,7 +17,8 @@ BANNER %
 
 INCLUDE [$SysInclude]/ansitext.rem
 
-MSG Today is [ansi_bold][$T][ansi_normal], being the [ord($T-date(year($T),1,1)+1)] day of [year($T)].%_
+MSG Today is [ansi_bold][$T][ansi_normal], being the [ord($T-date(year($T),1,1)+1)] day of [year($T)].
+MSG Not including today, the year [year($T)] has [date(year($T)+1, 1, 1)-$T-1] more [plural(date(year($T)+1, 1, 1)-$T-1, "day")] left.%_
 
 IF $TerminalBackground == 0
    SPECIAL COLOR 255 255 0 Sunrise:               🌅 [sunrise()] today and [sunrise($T+1)] tomorrow

examples/defs.rem

@@ -6,6 +6,11 @@
 # Cut and paste as desired!  Also, near the end, there are a bunch of	    #
 # holiday definitions for the U.S.					    #
 # 									    #
+# *** NOTE ***                                                              #
+# 									    #
+# This file is simply a grab-bag of examples.  It is NOT meant to be	    #
+# included as-is in a live reminder file.				    #
+# 									    #
 # Some examples provided by George M. Sipe <gsipe@pyratl.ga.pyramid.com>    #
 # 									    #
 # U.S. holidays provided by Dave Rickel <drickel@sjc.mentorg.com>	    #
@@ -27,7 +32,7 @@ RUN OFF
 # Ensure required version of remind is used... #
 ################################################
 IF version() < "03.04.02"
-   ERRMSG This file requires at least version 03.01.10 of Remind.%
+   ERRMSG This file requires at least version 03.04.02 of Remind.%
    ERRMSG This version is version [version()].
    EXIT
 ENDIF
@@ -305,51 +310,51 @@ FSET _PastMon(x, y) IIF(WKDAYNUM(_h2(x,y))!=1, _h2(x,y), _h2(x,y)+1)
 SET InIsrael VALUE("InIsrael", 0)
 SET Reform   VALUE("Reform", 0)
 
-[_h(1,  "Tishrey")] ++4 MSG %"Rosh Hashana 1%" is %b.
+REM [_h(1,  "Tishrey")] ++4 MSG %"Rosh Hashana 1%" is %b.
 
 # No RH-2 or Tzom Gedalia in Reform
 IF !Reform
-   [_h(2,  "Tishrey")] ++4 MSG %"Rosh Hashana 2%" is %b.
-   [_PastSat(3,  "Tishrey")] ++4 MSG %"Tzom Gedalia%" is %b.
+   REM [_h(2,  "Tishrey")] ++4 MSG %"Rosh Hashana 2%" is %b.
+   REM [_PastSat(3,  "Tishrey")] ++4 MSG %"Tzom Gedalia%" is %b.
 ENDIF
 
-[_h(10, "Tishrey")] ++4 MSG %"Yom Kippur%" is %b.
-[_h(15, "Tishrey")] ++4 MSG %"Sukkot 1%" is %b.
+REM [_h(10, "Tishrey")] ++4 MSG %"Yom Kippur%" is %b.
+REM [_h(15, "Tishrey")] ++4 MSG %"Sukkot 1%" is %b.
 
 IF !InIsrael
-   [_h(16, "Tishrey")] MSG %"Sukkot 2%"
+   REM [_h(16, "Tishrey")] MSG %"Sukkot 2%"
 ENDIF
 
-[_h(21, "Tishrey")] ++4 MSG %"Hoshana Rabba%" is %b.
-[_h(22, "Tishrey")] ++4 MSG %"Shemini Atzeret%" is %b.
+REM [_h(21, "Tishrey")] ++4 MSG %"Hoshana Rabba%" is %b.
+REM [_h(22, "Tishrey")] ++4 MSG %"Shemini Atzeret%" is %b.
 
 IF InIsrael
-   [_h(22, "Tishrey")] ++4 MSG %"Simchat Torah%" is %b.
+   REM [_h(22, "Tishrey")] ++4 MSG %"Simchat Torah%" is %b.
 ELSE
-   [_h(23, "Tishrey")] ++4 MSG %"Simchat Torah%" is %b.
+   REM [_h(23, "Tishrey")] ++4 MSG %"Simchat Torah%" is %b.
 ENDIF
 
 # Because Kislev can change length, we must be more careful about Chanukah
 FSET _chan(x) HEBDATE(24, "Kislev", $U-9)+x
-[_chan(1)] ++4 MSG %"Chanukah 1%" is %b.
-[_chan(2)] MSG %"Chanukah 2%"
-[_chan(3)] MSG %"Chanukah 3%"
-[_chan(4)] MSG %"Chanukah 4%"
-[_chan(5)] MSG %"Chanukah 5%"
-[_chan(6)] MSG %"Chanukah 6%"
-[_chan(7)] MSG %"Chanukah 7%"
-[_chan(8)] MSG %"Chanukah 8%"
+REM [_chan(1)] ++4 MSG %"Chanukah 1%" is %b.
+REM [_chan(2)] MSG %"Chanukah 2%"
+REM [_chan(3)] MSG %"Chanukah 3%"
+REM [_chan(4)] MSG %"Chanukah 4%"
+REM [_chan(5)] MSG %"Chanukah 5%"
+REM [_chan(6)] MSG %"Chanukah 6%"
+REM [_chan(7)] MSG %"Chanukah 7%"
+REM [_chan(8)] MSG %"Chanukah 8%"
 
 # Not sure about Reform's position on the next one.
 IF !Reform
 # 10 Tevet will never be a Saturday, so whether or not to
 # move it is moot.  (Thanks to Art Werschulz.)
-   [_h(10, "Tevet")] MSG %"Tzom Tevet%" is %b.
+   REM [_h(10, "Tevet")] MSG %"Tzom Tevet%" is %b.
 ENDIF
 
-[_h(15, "Shvat")] ++4 MSG %"Tu B'Shvat%" is %b.
-[_h(14, "Adar A")] ++4 MSG %"Purim Katan%" is %b.
-[_h(15, "Adar A")] ++4 MSG %"Shushan Purim Katan%" is %b.
+REM [_h(15, "Shvat")] ++4 MSG %"Tu B'Shvat%" is %b.
+REM [_h(14, "Adar A")] ++4 MSG %"Purim Katan%" is %b.
+REM [_h(15, "Adar A")] ++4 MSG %"Shushan Purim Katan%" is %b.
 
 # If Purim is on Sunday, then Fast of Esther is 11 Adar.
 IF WKDAYNUM(_h2(13, "Adar")) != 6
@@ -357,18 +362,18 @@ IF WKDAYNUM(_h2(13, "Adar")) != 6
 ELSE
    REM [_h2(11, "Adar")] ++4 MSG %"Fast of Esther%" is %b.
 ENDIF
-[_h(14, "Adar")] ++4 MSG %"Purim%" is %b.
-[_h(15, "Adar")] ++4 MSG %"Shushan Purim%" is %b.
-[_h(15, "Nisan")] ++4 MSG %"Pesach%" is %b.
+REM [_h(14, "Adar")] ++4 MSG %"Purim%" is %b.
+REM [_h(15, "Adar")] ++4 MSG %"Shushan Purim%" is %b.
+REM [_h(15, "Nisan")] ++4 MSG %"Pesach%" is %b.
 
 IF !InIsrael
-   [_h(16, "Nisan")] MSG %"Pesach 2%"
+   REM [_h(16, "Nisan")] MSG %"Pesach 2%"
 ENDIF
 
-[_h(21, "Nisan")] MSG %"Pesach 7%"
+REM [_h(21, "Nisan")] MSG %"Pesach 7%"
 
 IF !InIsrael && !Reform
-   [_h(22, "Nisan")] MSG %"Pesach 8%"
+   REM [_h(22, "Nisan")] MSG %"Pesach 8%"
 ENDIF
 
 REM [_PastSun(27, "Nisan")] SATISFY 1
@@ -384,36 +389,36 @@ ENDIF
 # Thursday.  If 4 Iyar is a Sunday, then Yom Hazikaron
 # moves to 5 Iyar and Yom Ha'atzmaut to 6 Iyar.
 IF WKDAYNUM(_h2(4, "Iyar")) == 4 || WKDAYNUM(_h2(4, "Iyar")) == 5
-	[_h(2, "Iyar")] ++4 MSG %"Yom Hazikaron%" is %b.
-	[_h(3, "Iyar")] ++4 MSG %"Yom Ha'atzmaut%" is %b.
+   REM [_h(2, "Iyar")] ++4 MSG %"Yom Hazikaron%" is %b.
+   REM [_h(3, "Iyar")] ++4 MSG %"Yom Ha'atzmaut%" is %b.
 ELSE
 IF WKDAYNUM(_h2(4, "Iyar")) == 0
-	[_h(5, "Iyar")] ++4 MSG %"Yom Hazikaron%" is %b.
-	[_h(6, "Iyar")] ++4 MSG %"Yom Ha'atzmaut%" is %b.
+   REM [_h(5, "Iyar")] ++4 MSG %"Yom Hazikaron%" is %b.
+   REM [_h(6, "Iyar")] ++4 MSG %"Yom Ha'atzmaut%" is %b.
 ELSE
-	[_h(4, "Iyar")] ++4 MSG %"Yom Hazikaron%" is %b.
-	[_h(5, "Iyar")] ++4 MSG %"Yom Ha'atzmaut%" is %b.
+   REM [_h(4, "Iyar")] ++4 MSG %"Yom Hazikaron%" is %b.
+   REM [_h(5, "Iyar")] ++4 MSG %"Yom Ha'atzmaut%" is %b.
 ENDIF
 ENDIF
 
 # Not sure about Reform's position on Lag B'Omer
 IF !Reform
-   [_h(18, "Iyar")] ++4 MSG %"Lag B'Omer%" is %b.
+   REM [_h(18, "Iyar")] ++4 MSG %"Lag B'Omer%" is %b.
 ENDIF
 
-[_h(28, "Iyar")] ++4 MSG %"Yom Yerushalayim%" is %b.
-[_h(6,  "Sivan")] ++4 MSG %"Shavuot%" is %b.
+REM [_h(28, "Iyar")] ++4 MSG %"Yom Yerushalayim%" is %b.
+REM [_h(6,  "Sivan")] ++4 MSG %"Shavuot%" is %b.
 
 IF !InIsrael && !Reform
-   [_h(7, "Sivan")] MSG %"Shavuot 2%"
+   REM [_h(7, "Sivan")] MSG %"Shavuot 2%"
 ENDIF
 
 # Fairly sure Reform Jews don't observe the next two
 IF !Reform
 # Tzom Tamuz and Tish'a B'Av are moved to Sunday if they normally
 # fall on a Saturday
-   [_PastSat(17, "Tamuz")] ++4 MSG %"Tzom Tammuz%" is %b.
-   [_PastSat(9,  "Av")] ++4 MSG %"Tish'a B'Av%" is %b.
+   REM [_PastSat(17, "Tamuz")] ++4 MSG %"Tzom Tammuz%" is %b.
+   REM [_PastSat(9,  "Av")] ++4 MSG %"Tish'a B'Av%" is %b.
 ENDIF
 
 # Counting the omer - do the whole spiel, i.e:

include/holidays/ca.rem

@@ -1,30 +1,16 @@
-# Canadian holidays
+# Canadian Federal Holidays
 # SPDX-License-Identifier: GPL-2.0-only
 
+# NOTE: This file ONLY includes Federal holidays that are observed throughout
+# Canada.  You should also include the appropriate file for the province
+# or territory where you live to get all of the statutory holidays for
+# that province.  For example, if you live in Ontario, use:
+#
+# INCLUDE [$SysInclude]/ca.rem
+# INCLUDE [$SysInclude]/ca/on.rem
+
 OMIT 1 Jan MSG New Year's Day
-
-# This varies by province
-REM Third Monday in Feb SCANFROM -7 ADDOMIT MSG Family Day
-
-# This varies by province
-OMIT [easterdate($Uy) - 2] MSG Good Friday
-
-# This varies by province
-OMIT [easterdate($Uy) + 1] MSG Easter Monday
-
-REM Mon 18 May SCANFROM -7 ADDOMIT MSG Victoria Day
 OMIT 1 July MSG Canada Day
-
-# This varies by province
-REM First Monday in Aug SCANFROM -7 ADDOMIT MSG Civic Holiday
-
 REM First Monday in Sep SCANFROM -7 ADDOMIT MSG Labour Day
-
-REM Second Monday in Oct SCANFROM -7 ADDOMIT MSG Thanksgiving Day
-
-REM 11 November MSG Remembrance Day
-
+REM 30 Sep MSG National Day for Truth and Reconciliation
 OMIT 25 Dec MSG Christmas
-
-OMIT 26 Dec MSG Boxing Day
-

include/holidays/ca/ab.rem

@@ -0,0 +1,12 @@
+# Alberta Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for Alberta.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+REM Third Monday in Feb SCANFROM -7 ADDOMIT MSG Family Day
+REM Mon 18 May SCANFROM -7 ADDOMIT MSG Victoria Day
+REM First Monday in Aug SCANFROM -7 ADDOMIT MSG Civic Holiday
+REM Second Monday in Oct SCANFROM -7 ADDOMIT MSG Thanksgiving Day
+OMIT 11 November MSG Remembrance Day

include/holidays/ca/bc.rem

@@ -0,0 +1,12 @@
+# British Columbia Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for British Columbia.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+REM Third Monday in Feb SCANFROM -7 ADDOMIT MSG Family Day
+REM Mon 18 May SCANFROM -7 ADDOMIT MSG Victoria Day
+REM First Monday in Aug SCANFROM -7 ADDOMIT MSG Civic Holiday
+REM Second Monday in Oct SCANFROM -7 ADDOMIT MSG Thanksgiving Day
+OMIT 11 November MSG Remembrance Day

include/holidays/ca/mb.rem

@@ -0,0 +1,11 @@
+# Manitoba Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for Manitoba.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+REM Third Monday in Feb SCANFROM -7 ADDOMIT MSG Louis Riel Day
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+REM Mon 18 May SCANFROM -7 ADDOMIT MSG Victoria Day
+REM Second Monday in Oct SCANFROM -7 ADDOMIT MSG Thanksgiving Day
+OMIT 11 November MSG Remembrance Day

include/holidays/ca/nb.rem

@@ -0,0 +1,10 @@
+# New Brunswick Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for New Brunswick.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+REM Third Monday in Feb SCANFROM -7 ADDOMIT MSG Family Day
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+REM First Monday in Aug SCANFROM -7 ADDOMIT MSG Civic Holiday
+OMIT 11 November MSG Remembrance Day

include/holidays/ca/nl.rem

@@ -0,0 +1,11 @@
+# Newfoundland and Labrador Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for Newfoundland and Labrador.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+OMIT 17 March MSG St. Patrick's Day
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+OMIT 23 April MSG St. George's Day
+OMIT 24 June MSG Discovery Day
+REM 11 November MSG Remembrance Day

include/holidays/ca/ns.rem

@@ -0,0 +1,10 @@
+# Nova Scotia Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for Nova Scotia.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+REM Third Monday in Feb SCANFROM -7 ADDOMIT MSG Heritage Day
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+REM 11 November MSG Remembrance Day
+

include/holidays/ca/nt.rem

@@ -0,0 +1,11 @@
+# Northwest Territories Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for the Northwest Territories.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+REM Mon 18 May SCANFROM -7 ADDOMIT MSG Victoria Day
+OMIT 21 June MSG National Aboriginal Day
+REM Second Monday in Oct SCANFROM -7 ADDOMIT MSG Thanksgiving Day
+OMIT 11 November MSG Remembrance Day

include/holidays/ca/nu.rem

@@ -0,0 +1,11 @@
+# Nunavut Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for Nunavut.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+REM Mon 18 May SCANFROM -7 ADDOMIT MSG Victoria Day
+OMIT 9 July MSG Nunavut Day
+REM First Monday in Aug SCANFROM -7 ADDOMIT MSG Civic Holiday
+OMIT 11 November MSG Remembrance Day

include/holidays/ca/on.rem

@@ -0,0 +1,12 @@
+# Ontario Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for Ontario.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+REM Third Monday in Feb SCANFROM -7 ADDOMIT MSG Family Day
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+REM Mon 18 May SCANFROM -7 ADDOMIT MSG Victoria Day
+REM First Monday in Aug SCANFROM -7 ADDOMIT MSG Civic Holiday
+REM 11 November MSG Remembrance Day
+OMIT 26 Dec MSG Boxing Day

include/holidays/ca/pe.rem

@@ -0,0 +1,10 @@
+# Prince Edward Island Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for Prince Edward Island.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+REM First Monday in Aug SCANFROM -7 ADDOMIT MSG Islander Day
+OMIT 11 November MSG Remembrance Day
+

include/holidays/ca/qc.rem

@@ -0,0 +1,11 @@
+# Quebec Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for Quebec.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+OMIT [easterdate($Uy) + 1] MSG Easter Monday
+REM Mon 18 May SCANFROM -7 ADDOMIT MSG Victoria Day
+OMIT 24 June MSG Fête Nationale
+REM Second Monday in Oct SCANFROM -7 ADDOMIT MSG Thanksgiving Day
+REM 11 November MSG Remembrance Day

include/holidays/ca/sk.rem

@@ -0,0 +1,12 @@
+# Saskatchewan Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for Saskatchewan.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+REM Third Monday in Feb SCANFROM -7 ADDOMIT MSG Family Day
+REM Mon 18 May SCANFROM -7 ADDOMIT MSG Victoria Day
+REM First Monday in Aug SCANFROM -7 ADDOMIT MSG Civic Holiday
+REM Second Monday in Oct SCANFROM -7 ADDOMIT MSG Thanksgiving Day
+OMIT 11 November MSG Remembrance Day

include/holidays/ca/yt.rem

@@ -0,0 +1,12 @@
+# Yukon Territory Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file includes holidays only for Yukon Territory.
+# To get Federal holidays as well, INCLUDE [$SysInclude]/ca.rem
+
+REM Third Monday in Feb SCANFROM -7 ADDOMIT MSG Discovery Day
+OMIT [easterdate($Uy) - 2] MSG Good Friday
+REM Mon 18 May SCANFROM -7 ADDOMIT MSG Victoria Day
+OMIT June 21 MSG National Indigenous Peoples Day
+REM Second Monday in Oct SCANFROM -7 ADDOMIT MSG Thanksgiving Day
+OMIT 11 November MSG Remembrance Day

include/holidays/chinese-new-year.rem

@@ -0,0 +1,29 @@
+REM  1 Feb 2022 MSG Chinese New Year (Tiger)
+REM 22 Jan 2023 MSG Chinese New Year (Rabbit)
+REM 10 Feb 2024 MSG Chinese New Year (Dragon)
+REM 29 Jan 2025 MSG Chinese New Year (Snake)
+REM 17 Feb 2026 MSG Chinese New Year (Horse)
+REM  6 Feb 2027 MSG Chinese New Year (Goat)
+REM 26 Jan 2028 MSG Chinese New Year (Monkey)
+REM 13 Feb 2029 MSG Chinese New Year (Rooster)
+REM  3 Feb 2030 MSG Chinese New Year (Dog)
+REM 23 Jan 2031 MSG Chinese New Year (Pig)
+REM 11 Feb 2032 MSG Chinese New Year (Rat)
+REM 31 Jan 2033 MSG Chinese New Year (Ox)
+REM 19 Feb 2034 MSG Chinese New Year (Tiger)
+REM  8 Feb 2035 MSG Chinese New Year (Rabbit)
+REM 28 Jan 2036 MSG Chinese New Year (Dragon)
+REM 15 Feb 2037 MSG Chinese New Year (Snake)
+REM  4 Feb 2038 MSG Chinese New Year (Horse)
+REM 24 Jan 2039 MSG Chinese New Year (Goat)
+REM 12 Feb 2040 MSG Chinese New Year (Monkey)
+REM  1 Feb 2041 MSG Chinese New Year (Rooster)
+REM 22 Jan 2042 MSG Chinese New Year (Dog)
+REM 10 Feb 2043 MSG Chinese New Year (Pig)
+REM 30 Jan 2044 MSG Chinese New Year (Rat)
+REM 17 Feb 2045 MSG Chinese New Year (Ox)
+REM  6 Feb 2046 MSG Chinese New Year (Tiger)
+REM 26 Jan 2047 MSG Chinese New Year (Rabbit)
+REM 14 Feb 2048 MSG Chinese New Year (Dragon)
+REM  2 Feb 2049 MSG Chinese New Year (Snake)
+REM 23 Jan 2050 MSG Chinese New Year (Horse)

include/holidays/de.rem

@@ -0,0 +1,20 @@
+# German Federal Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+# NOTE: This file ONLY includes Federal holidays that are observed throughout Germany.
+# You should also include the appropriate file for the state where you live
+# to get all of the statutory holidays.
+# For example, if you live in Lower Saxony, use:
+#
+# INCLUDE [$SysInclude]/de.rem
+# INCLUDE [$SysInclude]/de/ni.rem
+
+OMIT Jan 1 MSG Neujahr
+OMIT [easterdate($Uy)-2] MSG Karfreitag
+OMIT [easterdate($Uy)+1] MSG Ostermontag
+OMIT May 1 MSG Tag der Arbeit
+OMIT [easterdate($Uy)+39] MSG Christi Himmelfahrt
+OMIT [easterdate($Uy)+50] MSG Pfingstmontag
+OMIT Oct 3 MSG Tag der deutschen Einheit
+OMIT Dec 25 MSG 1. Weihnachtsfeiertag
+OMIT Dec 26 MSG 2. Weihnachtsfeiertag

include/holidays/de/by.rem

@@ -0,0 +1,7 @@
+# Bavarian Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+OMIT Jan 6 MSG Heilige Drei Könige
+OMIT [easterdate($Uy)+60] MSG Fronleichnam
+OMIT Aug 15 MSG Mariä Himmelfahrt
+OMIT Nov 1 MSG Allerheiligen (regional)

include/holidays/de/ni.rem

@@ -0,0 +1,4 @@
+# Lower Saxony Holidays
+# SPDX-License-Identifier: GPL-2.0-only
+
+OMIT Oct 31 MSG Tag Reformationstag

include/holidays/fr.rem

@@ -5,14 +5,12 @@
 #   https://www.legifrance.gouv.fr/codes/section_lc/LEGITEXT000006072050/LEGISCTA000006178007/2016-08-10/
 #
 
-SET easter EASTERDATE($Uy)
-
 REM Jan  1      MSG %"Jour de l'an%"
-REM [easter+1]  MSG %"Lundi de Pâques%"
+REM [easterdate($Uy)+1]  MSG %"Lundi de Pâques%"
 REM May  1      MSG %"Fête du Travail%"
 REM May  8      MSG %"Victoire des alliés%"
-REM [easter+39] MSG %"Jeudi de l'Ascension%"
-REM [easter+50] MSG %"Lundi de Pentecôte%"
+REM [easterdate($Uy)+39] MSG %"Jeudi de l'Ascension%"
+REM [easterdate($Uy)+50] MSG %"Lundi de Pentecôte%"
 REM Jul 14      MSG %"Fête nationale%"
 REM Aug 15      MSG %"Assomption%"
 REM Nov  1      MSG %"La Toussaint%"

include/holidays/gr.rem

@@ -10,7 +10,7 @@ REM 28 Oct MSG ΟΧΙ
 REM 25 Dec MSG ΧΡΙΣΤΟΥΓΕΝΝΑ
 REM 26 Dec MSG ΧΡΙΣΤΟΥΓΕΝΝΑ2
 
-REM [orthodoxeaster($Uy)+1] ΔΕΥΤΕΡΑ ΤΟΥ ΠΑΣΧΑ
+REM [orthodoxeaster($Uy)+1] MSG ΔΕΥΤΕΡΑ ΤΟΥ ΠΑΣΧΑ
 
 
 # May first is a national holiday except if Sunday, day of great week (week before easter) or Monday after easter, then

include/holidays/ie.rem

@@ -31,10 +31,9 @@ REM Monday 1 August SCANFROM -7 ADDOMIT MSG August Public Holiday
 REM Monday 1 -7 November SCANFROM -7 ADDOMIT MSG October Public Holiday
 
 ; Easter
-SET easter easterdate(today())
-REM [TRIGGER(easter-2)] MSG Good Friday (Aoine an Chéasta)
-REM [TRIGGER(easter)] MSG Easter Sunday (Domhnach Cásca)
-OMIT [TRIGGER(easter+1)] MSG Easter Monday (Luan Cásca) Public Holiday
+REM [easterdate($Uy)-2] MSG Good Friday (Aoine an Chéasta)
+REM [easterdate($Uy)] MSG Easter Sunday (Domhnach Cásca)
+OMIT [easterdate($Uy)+1] MSG Easter Monday (Luan Cásca) Public Holiday
 
 ; St. Brigid's Day
 REM 1 February MSG Saint Brigid's Day (Lá Fhéile Bríde or Imbolc)

include/holidays/jewish.rem

@@ -10,7 +10,6 @@ SET InIsrael value("InIsrael", 0)
 SET Reform value("Reform", 0)
 
 # Convenient function definition to save typing
-FSET _h(x, y) HEBDATE(x,y)
 FSET _h2(x, y) HEBDATE(x, y, $U-7)
 FSET _PastSat(x, y) IIF(WKDAYNUM(_h2(x,y))!=6, _h2(x,y), _h2(x,y)+1)
 FSET _BackTwoFri(x, y) IIF(WKDAYNUM(_h2(x,y))!=5, _h2(x,y), _h2(x,y)-2)
@@ -19,50 +18,50 @@ FSET _BackTwoSat(x, y) IIF(WKDAYNUM(_h2(x,y))!=6, _h2(x,y), _h2(x,y)-2)
 SET InIsrael VALUE("InIsrael", 0)
 SET Reform   VALUE("Reform", 0)
 
-[_h(1,  "Tishrey")] ++4 MSG %"Rosh Hashana 1%" is %b.
+REM [hebdate(1,  "Tishrey")] ++4 MSG %"Rosh Hashana 1%" is %b.
 
 # No RH-2 or Tzom Gedalia in Reform
 IF !Reform
-   [_h(2,  "Tishrey")] ++4 MSG %"Rosh Hashana 2%" is %b.
-   [_PastSat(3,  "Tishrey")] ++4 MSG %"Tzom Gedalia%" is %b.
+   REM [hebdate(2,  "Tishrey")] ++4 MSG %"Rosh Hashana 2%" is %b.
+   REM [_PastSat(3,  "Tishrey")] ++4 MSG %"Tzom Gedalia%" is %b.
 ENDIF
 
-[_h(10, "Tishrey")] ++4 MSG %"Yom Kippur%" is %b.
-[_h(15, "Tishrey")] ++4 MSG %"Sukkot 1%" is %b.
+REM [hebdate(10, "Tishrey")] ++4 MSG %"Yom Kippur%" is %b.
+REM [hebdate(15, "Tishrey")] ++4 MSG %"Sukkot 1%" is %b.
 
 IF !InIsrael
-   [_h(16, "Tishrey")] MSG %"Sukkot 2%"
+   REM [hebdate(16, "Tishrey")] MSG %"Sukkot 2%"
 ENDIF
 
-[_h(21, "Tishrey")] ++4 MSG %"Hoshana Rabba%" is %b.
-[_h(22, "Tishrey")] ++4 MSG %"Shemini Atzeret%" is %b.
+REM [hebdate(21, "Tishrey")] ++4 MSG %"Hoshana Rabba%" is %b.
+REM [hebdate(22, "Tishrey")] ++4 MSG %"Shemini Atzeret%" is %b.
 
 IF InIsrael
-   [_h(22, "Tishrey")] ++4 MSG %"Simchat Torah%" is %b.
+   REM [hebdate(22, "Tishrey")] ++4 MSG %"Simchat Torah%" is %b.
 ELSE
-   [_h(23, "Tishrey")] ++4 MSG %"Simchat Torah%" is %b.
+   REM [hebdate(23, "Tishrey")] ++4 MSG %"Simchat Torah%" is %b.
 ENDIF
 
 # Because Kislev can change length, we must be more careful about Chanukah
 FSET _chan(x) HEBDATE(24, "Kislev", $U-9)+x
-[_chan(1)] ++4 MSG %"Chanukah 1%" is %b.
-[_chan(2)] MSG %"Chanukah 2%"
-[_chan(3)] MSG %"Chanukah 3%"
-[_chan(4)] MSG %"Chanukah 4%"
-[_chan(5)] MSG %"Chanukah 5%"
-[_chan(6)] MSG %"Chanukah 6%"
-[_chan(7)] MSG %"Chanukah 7%"
-[_chan(8)] MSG %"Chanukah 8%"
+REM [_chan(1)] ++4 MSG %"Chanukah 1%" is %b.
+REM [_chan(2)] MSG %"Chanukah 2%"
+REM [_chan(3)] MSG %"Chanukah 3%"
+REM [_chan(4)] MSG %"Chanukah 4%"
+REM [_chan(5)] MSG %"Chanukah 5%"
+REM [_chan(6)] MSG %"Chanukah 6%"
+REM [_chan(7)] MSG %"Chanukah 7%"
+REM [_chan(8)] MSG %"Chanukah 8%"
 
 # Not sure about Reform's position on the next one.
 IF !Reform
 # 10 Tevet will never be a Saturday, so whether or not to
 # move it is moot.  (Thanks to Art Werschulz.)
-   [_h(10, "Tevet")] MSG %"Tzom Tevet%" is %b.
+   REM [hebdate(10, "Tevet")] MSG %"Tzom Tevet%" is %b.
 ENDIF
 
-[_h(15, "Shvat")] ++4 MSG %"Tu B'Shvat%" is %b.
-[_h(14, "Adar A")] ++4 MSG %"Purim Katan%" is %b.
+REM [hebdate(15, "Shvat")] ++4 MSG %"Tu B'Shvat%" is %b.
+REM [hebdate(14, "Adar A")] ++4 MSG %"Purim Katan%" is %b.
 
 # If Purim is on Sunday, then Fast of Esther is 11 Adar.
 IF WKDAYNUM(_h2(13, "Adar")) != 6
@@ -70,43 +69,39 @@ IF WKDAYNUM(_h2(13, "Adar")) != 6
 ELSE
    REM [_h2(11, "Adar")] ++4 MSG %"Fast of Esther%" is %b.
 ENDIF
-[_h(14, "Adar")] ++4 MSG %"Purim%" is %b.
-[_h(15, "Nisan")] ++4 MSG %"Pesach%" is %b.
+REM [hebdate(14, "Adar")] ++4 MSG %"Purim%" is %b.
+REM [hebdate(15, "Nisan")] ++4 MSG %"Pesach%" is %b.
 
 IF !InIsrael
-   [_h(16, "Nisan")] MSG %"Pesach 2%"
+   REM [hebdate(16, "Nisan")] MSG %"Pesach 2%"
 ENDIF
 
-[_h(21, "Nisan")] MSG %"Pesach 7%"
+REM [hebdate(21, "Nisan")] MSG %"Pesach 7%"
 
 IF !InIsrael && !Reform
-   [_h(22, "Nisan")] MSG %"Pesach 8%"
+   REM [hebdate(22, "Nisan")] MSG %"Pesach 8%"
 ENDIF
 
-[_h(27, "Nisan")] ++4 MSG %"Yom HaShoah%" is %b.
-[_BackTwoFri(4,  "Iyar")] ++4 MSG %"Yom HaZikaron%" is %b.
-[_BackTwoSat(5,  "Iyar")] ++4 MSG %"Yom Ha'atzmaut%" is %b.
+REM [hebdate(27, "Nisan")] ++4 MSG %"Yom HaShoah%" is %b.
+REM [_BackTwoFri(4,  "Iyar")] ++4 MSG %"Yom HaZikaron%" is %b.
+REM [_BackTwoSat(5,  "Iyar")] ++4 MSG %"Yom Ha'atzmaut%" is %b.
 
 # Not sure about Reform's position on Lag B'Omer
 IF !Reform
-   [_h(18, "Iyar")] ++4 MSG %"Lag B'Omer%" is %b.
+   REM [hebdate(18, "Iyar")] ++4 MSG %"Lag B'Omer%" is %b.
 ENDIF
 
-[_h(28, "Iyar")] ++4 MSG %"Yom Yerushalayim%" is %b.
-[_h(6,  "Sivan")] ++4 MSG %"Shavuot%" is %b.
+REM [hebdate(28, "Iyar")] ++4 MSG %"Yom Yerushalayim%" is %b.
+REM [hebdate(6,  "Sivan")] ++4 MSG %"Shavuot%" is %b.
 
 IF !InIsrael && !Reform
-   [_h(7, "Sivan")] MSG %"Shavuot 2%"
+   REM [hebdate(7, "Sivan")] MSG %"Shavuot 2%"
 ENDIF
 
 # Fairly sure Reform Jews don't observe the next two
 IF !Reform
 # Tzom Tamuz and Tish'a B'Av are moved to Sunday if they normally
 # fall on a Saturday
-   [_PastSat(17, "Tamuz")] ++4 MSG %"Tzom Tammuz%" is %b.
-   [_PastSat(9,  "Av")] ++4 MSG %"Tish'a B'Av%" is %b.
+   REM [_PastSat(17, "Tamuz")] ++4 MSG %"Tzom Tammuz%" is %b.
+   REM [_PastSat(9,  "Av")] ++4 MSG %"Tish'a B'Av%" is %b.
 ENDIF
-
-# Clean up
-FUNSET _h _h2 _PastSat _BackTwoFri _BackTwoSat _chan
-

include/holidays/jp.rem

@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: MIT
+
+# Public Holidays in Japan, courtesy of Brandon Wilson.
+
+OMIT January 01 MSG 元日
+REM January 15 UNTIL December 31 1999 ADDOMIT MSG 成人の日
+REM Second Monday in January SCANFROM -7 ADDOMIT SATISFY [$Ty >= 2000] MSG 成人の日
+REM February 11 ADDOMIT SATISFY [$Ty >= 1967] MSG 建国記念の日
+REM February 23 ADDOMIT SATISFY [$Ty >= 2020] MSG 天皇誕生日
+REM [soleq(0)] NOQUEUE SCANFROM -7 ADDOMIT MSG  春分の日
+REM April 29 UNTIL December 31 2006 ADDOMIT SATISFY [$Ty >= 1989] MSG みどりの日
+REM April 29 ADDOMIT SATISFY [$Ty >= 2007] MSG 昭和の日
+OMIT May 03 MSG 憲法記念日
+REM May 4 ADDOMIT SATISFY [$Ty >= 2007] MSG みどりの日
+OMIT May 05 MSG こどもの日
+REM July 20 UNTIL December 31 2002 ADDOMIT SATISFY [$Ty >= 1996] MSG 海の日
+REM Third Monday in July SCANFROM -7 ADDOMIT SATISFY [$Ty >= 2003] MSG 海の日
+REM August 11 ADDOMIT SATISFY [$Ty >= 2016] MSG 山の日
+REM September 15 UNTIL December 31 2002 ADDOMIT SATISFY [$Ty >= 1966] MSG 敬老の日
+REM Third Monday in September SCANFROM -7 ADDOMIT SATISFY [$Ty >= 2003] MSG 敬老の日
+REM [soleq(2)] NOQUEUE SCANFROM -7 ADDOMIT MSG 秋分の日
+REM October 10 UNTIL December 31 1999 ADDOMIT SATISFY [$Ty >= 1966] MSG 体育の日
+REM Second Monday in October UNTIL December 31 2019 SCANFROM -7 ADDOMIT SATISFY [$Ty >= 2000] MSG 体育の日
+REM Second Monday in October SCANFROM -7 ADDOMIT SATISFY [$Ty >= 2020] MSG スポーツの日
+OMIT November 03 MSG 文化の日
+OMIT November 23 MSG 勤労感謝の日
+REM December 23 UNTIL December 31 2018 ADDOMIT SATISFY [$Ty >= 1989] MSG 天皇の誕生日

include/holidays/pt.rem

@@ -0,0 +1,17 @@
+# Portuguese holidays
+# Courtesy of Joop Kiefte
+
+OMIT 1 Jan MSG Ano Novo
+OMIT [easterdate()-47] MSG Carnaval
+OMIT [easterdate()-2] MSG Sexta-feira Santa
+OMIT [easterdate()] MSG Domingo de Páscoa
+OMIT 25 Apr MSG Dia da Liberdade
+OMIT 1 May MSG Dia do Trabalhador
+OMIT [easterdate()+60] MSG Corpo de Deus
+OMIT 10 Jun MSG Dia de Portugal, de Camões e das Comunidades Portuguesas
+OMIT 15 Aug MSG Assunção de Nossa Senhora
+OMIT 5 Oct MSG Implantação da República
+OMIT 1 Nov MSG Dia de Todos os Santos
+OMIT 1 Dec MSG Restauração da Independência
+OMIT 8 Dec MSG Imaculada Conceição
+OMIT 25 Dec MSG Natal

include/lang/auto.rem

@@ -1,24 +1,28 @@
 # SPDX-License-Identifier: GPL-2.0-only
-SET autolang getenv("REMIND_LANG")
+if !defined("__autolang__")
+    SET __autolang__ 1
+    PRESERVE __autolang__
+    SET autolang getenv("REMIND_LANG")
 
-IF autolang == ""
-    SET autolang getenv("LC_ALL")
-ENDIF
-IF autolang == ""
-    SET autolang getenv("LANGUAGE")
-ENDIF
-IF autolang == ""
-    SET autolang getenv("LANG")
-ENDIF
+    IF autolang == ""
+        SET autolang getenv("LC_ALL")
+    ENDIF
+    IF autolang == ""
+        SET autolang getenv("LANGUAGE")
+    ENDIF
+    IF autolang == ""
+        SET autolang getenv("LANG")
+    ENDIF
 
-IF autolang != ""
-    IF access($SysInclude + "/lang/" + lower(substr(autolang, 1, 5)) + ".rem", "r") == 0
-        INCLUDE [$SysInclude]/lang/[lower(substr(autolang, 1, 5))].rem
-    ELSE
-        IF access($SysInclude + "/lang/" + lower(substr(autolang, 1, 2)) + ".rem", "r") == 0
-            INCLUDE [$SysInclude]/lang/[lower(substr(autolang, 1, 2))].rem
+    IF autolang != ""
+        IF access($SysInclude + "/lang/" + lower(substr(autolang, 1, 5)) + ".rem", "r") == 0
+            INCLUDE [$SysInclude]/lang/[lower(substr(autolang, 1, 5))].rem
+        ELSE
+            IF access($SysInclude + "/lang/" + lower(substr(autolang, 1, 2)) + ".rem", "r") == 0
+                INCLUDE [$SysInclude]/lang/[lower(substr(autolang, 1, 2))].rem
+            ENDIF
         ENDIF
     ENDIF
+    UNSET autolang
 ENDIF
 
-UNSET autolang

include/lang/de.rem

@@ -87,3 +87,5 @@ SET daylightST_starts_str        "Beginn Sommerzeit"
 
 # Daylight saving time ends
 SET daylightST_ends_str          "Ende Sommerzeit"
+
+PRESERVE earthseasons_Perihelion_str earthseasons_EquinoxMar_str earthseasons_SolsticeJun_str earthseasons_Aphelion_str earthseasons_EquinoxSep_str earthseasons_SolsticeDec_str daylightST_starts_str daylightST_ends_str

include/lang/gr.rem

@@ -81,3 +81,5 @@ SET daylightST_starts_str        "Έναρξη θέρους"
 
 # Daylight saving time ends
 SET daylightST_ends_str          "Τέλος θέρους"
+
+PRESERVE earthseasons_Perihelion_str earthseasons_EquinoxMar_str earthseasons_SolsticeJun_str earthseasons_Aphelion_str earthseasons_EquinoxSep_str earthseasons_SolsticeDec_str daylightST_starts_str daylightST_ends_str

include/moonphases.rem

@@ -0,0 +1,14 @@
+# Moon phases
+# SPDX-License-Identifier: GPL-2.0-only
+
+IF $CalMode || $PsCal
+    REM [moondate(0)] SPECIAL MOON 0 -1 -1 [moontime(0)]
+    REM [moondate(1)] SPECIAL MOON 1 -1 -1 [moontime(1)]
+    REM [moondate(2)] SPECIAL MOON 2 -1 -1 [moontime(2)]
+    REM [moondate(3)] SPECIAL MOON 3 -1 -1 [moontime(3)]
+ELSE
+    REM NOQUEUE [moondatetime(0)] MSG New Moon (%2)
+    REM NOQUEUE [moondatetime(1)] MSG First Quarter (%2)
+    REM NOQUEUE [moondatetime(2)] MSG Full Moon (%2)
+    REM NOQUEUE [moondatetime(3)] MSG Last Quarter (%2)
+ENDIF

man/rem2ps.1.in

@@ -525,9 +525,9 @@ contains the back value.  If the "back" value was \-n, the value will
 be positive; if it was \-\-n, the value will be negative.
 .TP
 .B delta \fIn\fR
-If the reminder contained a "delta" clause (\+n or \+\+n), this key
-contains the delta value.  If the "delta" value was \+n, the value will
-be positive; if it was \+\+n, the value will be negative.
+If the reminder contained a "delta" clause (+n or ++n), this key
+contains the delta value.  If the "delta" value was +n, the value will
+be positive; if it was ++n, the value will be negative.
 .TP
 .B rep \fIn\fR
 If the reminder contained a "repeat" clause (*n), this key contains

man/remind.1.in

@@ -11,8 +11,8 @@ reminder or alarm can consist of a message sent to standard output, or
 a program to be executed.
 .PP
 If \fIfilename\fR is specified as a single dash '-', then \fBRemind\fR
-takes its input from standard input.  This also implicitly enables
-the \fB\-o\fR option, described below.
+takes its input from standard input.
+
 .PP
 If \fIfilename\fR happens to
 be a directory rather than a plain file, then \fBRemind\fR reads all of
@@ -28,15 +28,12 @@ Anything after the __EOF__ marker is completely ignored.
 \fBRemind\fR has a slew of options.  If you're new to the program,
 ignore them for now and skip to the section "REMINDER FILES".
 .TP
-.B \-\-version
-The \fB\-\-version\fR option causes \fBRemind\fR to print its version number
-to standard output and then exit.
-.TP
 .B \-n
 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.  Note that the \fB\-n\fR
-option causes any \fB\-g\fR option to be \fIignored\fR.
+option causes any \fB\-g\fR option to be \fIignored\fR and also implicitly
+enables the \fB\-o\fR option.
 .TP
 .B \-j\fR[\fIn\fR]
 Runs \fBRemind\fR in "purge" mode to get rid of expired reminders.
@@ -51,7 +48,7 @@ The \fB\-c\fR option causes \fBRemind\fR to produce a calendar that is
 sent to standard output.  If you supply a number \fIn\fR, then a
 calendar will be generated for \fIn\fR months, starting with the
 current month.  By default, a calendar for only the current month is
-produced.
+produced.  This option implicitly enables the \fB\-o\fR option.
 .RS
 .PP
 You can precede \fIn\fR (if any) with a set of flags.  The flags
@@ -66,7 +63,7 @@ causes \fBRemind\fR to display reminders on the calendar on the
 day they actually occur \fIas well as\fR on any preceding days
 specified by the reminder's \fIdelta\fR.  This \fIalso\fR causes
 \fBRemind\fR to include text outside %"...%" sequences that would
-otherwise be removed (though the actual %" markers themselves are removed.)
+otherwise be removed (though the actual %" markers themselves are removed.) \"" Add comment to avoid Emacs highlighting problems
 .TP
 .B 'l'
 causes \fBRemind\fR to use VT100 line-drawing characters to draw
@@ -177,7 +174,7 @@ The \fB\-s\fR option is very similar to the \fB\-c\fR option, except
 that the output calendar is not formatted.  It is listed in a "simple
 format" that can be used as input for more sophisticated calendar-drawing
 programs.  If \fIn\fR starts with "+", then it is interpreted as a number
-of weeks.
+of weeks.  This option also implicitly enables the \fB\-o\fR option.
 
 If you immediately follow the \fBs\fR with the letter
 \fBa\fR, then \fBRemind\fR displays reminders on the calendar on the
@@ -204,6 +201,9 @@ letter with this option, then the normal calendar-mode substitution filter
 is disabled and the %"...%" sequences are preserved in the output.
 .RS
 .PP
+The \fB\-p\fR, \fB\-pp\fR and \fB\-ppp\fR options implicitly enable
+the \fB\-o\fR option.
+.PP
 Note that the \fB\-pp\fR or \fB\-ppp\fR options also enable the \fB\-l\fR
 option.
 .RE
@@ -227,7 +227,11 @@ error, and to print a security message if a script tests the
 $RunOff system variable.
 .TP
 .B \-o
-The \fB\-o\fR option causes \fBRemind\fR to ignore all \fBONCE\fR directives.
+The \fB\-o\fR option causes \fBRemind\fR to ignore all \fBONCE\fR
+directives.  Note that \fBONCE\fR is also ignored if any of the
+\fB\-c\fR, \fB\-n\fR, \fB\-p\fR, or \fB\-s\fR options is used, if a
+repetition factor \fB*n\fR is used, or if a date other than today's
+date is specified on the command-line.
 .TP
 .B \-t
 The \fB\-t\fR option causes \fBRemind\fR to trigger all non-expired reminders,
@@ -236,13 +240,13 @@ regardless of the \fIdelta\fR supplied for each reminder.
 .B \-t\fR\fIn\fR
 If you supply a number \fIn\fR after the \fB\-t\fR option, then
 \fBRemind\fR pretends that echo \fBREM\fR command has a delta
-of \+\+\fIn\fR, regardless of any existing delta.
+of ++\fIn\fR, regardless of any existing delta.
 .TP
 .B \-tz\fR
 If you supply the letter \fBz\fR after the \fB\-t\fR option, then
 \fBRemind\fR sets all REM statements' deltas to zero, regardless of the
 value supplied in the REM statement itself.  In effect, this disables
-all deltas of the form \fB\+\fIn\fR and \fB\+\+\fIn\fR.
+all deltas of the form \fB+\fIn\fR and \fB++\fIn\fR.
 .TP
 .B \-tt\fR[\fIn\fR]
 The \fB-tt\fR option causes \fBRemind\fR to assume a default delta of
@@ -300,6 +304,11 @@ Echo lines when displaying error messages
 .TP
 .B f
 Trace the reading of reminder files
+.TP
+.B s
+Trace expression parsing and display the internal expression node
+tree.  This is unlikely to be useful unless you are working on
+\fBRemind\fR's expression evaluation engine.
 .RE
 .TP
 \fB\-g\fR[\fBa|d\fR[\fBa|d\fR[\fBa|d\fR[\fBa|d\fR]]]]
@@ -361,13 +370,18 @@ You use both \fB\-k\fR\fIcmd1\fR and \fB\-k:\fR\fIcmd2\fR to use different
 commands for queued versus non-queued reminders.
 .RE
 .TP
-\fB\-z\fR[\fIn\fR] Runs \fBRemind\fR in the daemon mode.  If \fIn\fR
+\fB\-z\fR[\fIn\fR] Runs \fBRemind\fR in "daemon mode".  If \fIn\fR
 is supplied, it specifies how often (in minutes) \fBRemind\fR should
 wake up to check if the reminder script has been changed.  \fIN\fR
 defaults to 1, and can range from 1 to 60.  Note that the use of the
 \fB\-z\fR option also enables the \fB\-f\fR option.
 .PP
 .RS
+If \fBRemind\fR is compiled on a system that supports
+\fBinotify\fR(7), then if the reminder script supplied on the
+command-line is actually a directory, \fBRemind\fR additionally checks
+if all files within that directory have been modified since startup.
+.PP
 If you supply the option \fB\-zj\fR, \fBRemind\fR runs in a
 special mode called \fBserver mode\fR.  This is documented
 in the tkremind man page; see tkremind(1).  The older server mode
@@ -410,7 +424,9 @@ TAG clause.
 \fB\-i\fR\fIvar\fR\fB=\fR\fIexpr\fR
 Sets the value of the specified \fIvar\fR to \fIexpr\fR, and \fBpreserves\fR
 \fIvar\fR.  \fIExpr\fR can be any valid \fBRemind\fR expression.  See the
-section "INITIALIZING VARIABLES ON THE COMMAND LINE" for more details.
+section "INITIALIZING VARIABLES ON THE COMMAND LINE" for more details.  If
+you omit the \fB=\fR\fIexpr\fR part, then \fIvar\fR is initialized to 0.
+In other words, \fB\-i\fIvar\fR is exactly the same as \fB\-i\fIvar\fR\fB=\fR0.
 .TP
 \fB\-i\fR\fIfunc\fR(\fIargs\fR)=\fIdefinition\fR
 Allows you to define a function on the command line.
@@ -441,6 +457,55 @@ with the date incrementing on each iteration.  You may have to enclose
 the parameter in quotes to avoid shell expansion.  See the subsection
 "Repeated Execution" in the section "CALENDAR MODE" for more
 information.
+
+.SH LONG OPTIONS
+
+\fBRemind\fR supports the following long options, which \fIare\fR
+case-sensitive:
+
+.PP
+.B \-\-version
+The \fB\-\-version\fR option causes \fBRemind\fR to print its version number
+to standard output and then exit.
+.TP
+.B \-\-print-config-cmd
+This option causes \fBRemind\fR to print the exact \fB./configure\fR
+command that was used when \fBRemind\fR was built.  You can use this
+to build a new version of \fBRemind\fR using the same configuration
+as an existing one by running:
+.RS
+.PP
+.nf
+        eval `remind --print-config-cmd`
+.fi
+.PP
+from the top-level \fBRemind\fR source directory.  (However, it's safer
+to simply run \fBremind --print-config-cmd\fR and then type in the
+command once you've verified that it looks OK.)
+.RE
+
+.TP
+.B \-\-print-tokens
+The \fB\-\-print-tokens\fR option causes \fBRemind\fR to print the tokens
+used by the parser, built-in function names, and system variable names
+to standard output and then exit.  This output is designed to make it easy
+to create a syntax-highlighting file for various text editors.  The output
+can be modified by hand or by a script into a syntax-highlighting file
+with relative ease.
+.TP
+.B \-\-max-execution-time\fR=\fIn\fR
+Limit the total execution time (as measured by the wall clock) to
+\fIn\fR seconds.  This is useful if \fBRemind\fR is invoked on
+potentially-untrustworthy files that could attempt to use a lot of
+resources.  Note that the limit \fIn\fR is approximate and
+\fBRemind\fR might execute for one or two more seconds before it is
+killed.  If \fIn\fR is specified as zero, then no limit is applied, just
+as if the option had not been used at all.
+.PP
+If a limit is applied, it applies only to the foreground run of \fBRemind\fR.
+If \fBRemind\fR finishes processing the script and then starts handling
+queued reminders, the time limit is reset to no limit.
+.PP
 .SH REMINDER FILES
 .PP
 \fBRemind\fR uses scripts to control its operation.  You can use any
@@ -449,14 +514,14 @@ text editor capable of creating plain-text files to create a
 very simple and almost immediately understandable:
 .PP
 .nf
-	REM 6 Jan MSG Dianne's birthday
+        REM Mar 31 MSG International Transgender Day of Visibility
 .fi
 .PP
 to the baroque and obscure:
 .PP
 .nf
-	REM [date(thisyear, 1, 1) + 180] ++5 OMIT \\
-	sat sun BEFORE MSG [ord(thisyear-1980)] payment due %b!
+        REM [date(thisyear, 1, 1) + 180] ++5 OMIT \\
+        sat sun BEFORE MSG [ord(thisyear-1980)] payment due %b!
 .fi
 .PP
 A reminder file consists of commands, with one command per line.  Several
@@ -515,12 +580,15 @@ Its syntax is:
 The parts of the \fBREM\fR command can be specified in any order, except
 that the \fIbody\fR must come immediately after the \fBMSG\fR,
 \fBRUN\fR, \fBCAL\fR, \fBPS\fR, \fBPSFILE\fR or \fBSATISFY\fR keyword.
+The portion of the \fBREM\fR command before the \fBMSG\fR, \fBMSF\fR
+\fBRUN\fR, \fBCAL\fR or \fBSATISFY\fR clause is called a
+\fItrigger\fR.
 .PP
-The \fBREM\fR token is optional, providing that the remainder
-of the command cannot be mistaken for another \fBRemind\fR command
-such as \fBOMIT\fR or \fBRUN\fR.  The portion of the \fBREM\fR command
-before the \fBMSG\fR, \fBMSF\fR \fBRUN\fR, \fBCAL\fR or \fBSATISFY\fR clause
-is called a \fItrigger\fR.
+In earlier versions of \fBRemind\fR, the \fBREM\fR token was optional
+providing that the remainder of the command cannot be mistaken for
+another \fBRemind\fR command.  However, this use is deprecated and will
+now cause a warning to be issued.  All of your reminder lines should
+be written to start with the REM command.
 .PP
 .B "MSG, MSF, RUN, CAL, SPECIAL, PS and PSFILE"
 .PP
@@ -533,14 +601,16 @@ used the \fB\-k\fR command-line option, then \fBMSG\fR-type reminders are
 passed to the appropriate program.  Note that the options \fB\-c\fR,
 \fB\-s\fR, \fB\-p\fR and \fB\-n\fR disable the \fB\-k\fR option.
 .PP
-Note that you can omit the reminder type, in which case it
-defaults to \fBMSG\fR.  So you can write:
+Earlier versions of \fBRemind\fR let you omit the reminder type,
+in which case it defaulted to \fBMSG\fR.  However, this usage is
+deprecated and will cause a warning.  Something like:
 .PP
 .nf
-	6 January Dianne's Birthday
+	REM 6 January Dianne's Birthday
 .fi
 .PP
-although this is not recommended.
+will issue the warning "Missing REM type; assuming MSG"
+
 .PP
 The \fBMSF\fR keyword is almost the same as the \fBMSG\fR keyword,
 except that the reminder is formatted to fit into a paragraph-like
@@ -987,26 +1057,35 @@ overrides that.
 .B THE ONCE KEYWORD
 .PP
 Sometimes, it is necessary to ensure that reminders are run only once
-on a given day.  For example, if you have a reminder that makes a backup
-of your files every Friday:
+on a given day.  For example, compare the following two reminders:
 .PP
 .nf
-	REM Fri RUN do_backup
+        REM Fri RUN do_backup
+        REM Fri ONCE RUN do_backup
 .fi
 .PP
-(Here, \fIdo_backup\fR is assumed to be a program or shell script that
-does the work.)  If you run \fBRemind\fR from your .login script, for
-example, and log in several times per day, the \fIdo_backup\fR program
-will be run each time you log in.  If, however, you use the \fBONCE\fR
-keyword in the reminder, the \fBRemind\fR checks the last access date of
-the reminder script.  If it is the same as the current date, \fBRemind\fR
-assumes that it has already been run, and will not issue reminders containing
-the \fBONCE\fR keyword.
+The first will be run every time you invoke \fBRemind\fR on a Friday,
+whereas the second will be run only the first time you invoke
+\fBRemind\fR on a given Friday.
+.PP
+If you run \fBRemind\fR from your .login script, for example, and log
+in several times per day, the \fIdo_backup\fR program in the first
+reminder will be run each time you log in.  If, however, you use the
+\fBONCE\fR keyword in the reminder, the \fBRemind\fR checks the last
+access date of the reminder script.  If it is the same as the current
+date, \fBRemind\fR assumes that it has already been run, and will not
+issue reminders containing the \fBONCE\fR keyword.
 .PP
 Note that if you view or edit your reminder script, the last access date
 will be updated, and the \fBONCE\fR keyword will not operate properly.
+You can fix this by setting a timestamp file for \fBRemind\fR to track
+the last-run date; see the documentation of \fB$OnceFile\fR in the
+\fBSYSTEM VARIABLES\fR section.  If you use standard input as your
+\fBRemind\fR input file, then you \fImust\fR use \fB$OnceFile\fR for the
+\fBONCE\fR keyword to work properly.
+.PP
 If you start \fBRemind\fR with the \fB\-o\fR option, then the \fBONCE\fR
-keyword will be ignored.
+keyword will be ignored and any \fB$OnceFile\fR will be ignored.
 .PP
 .B LOCALLY OMITTING WEEKDAYS
 .PP
@@ -1060,6 +1139,10 @@ be Friday, Saturday and Sunday.
 .PP
 The \fBOMITFUNC\fR phrase of the \fBREM\fR command allows you to
 supply a function that determines whether or not a date is omitted.
+Note that \fBOMITFUNC\fR must be given just the name of a user-defined
+function; it can't take an arbitrary expression or the name of a built-in
+function.
+.PP
 The function is passed a single parameter of type \fBDATE\fR, and must
 return a non-zero integer if the date is considered "omitted" and 0
 otherwise.  Here's an example:
@@ -1516,7 +1599,35 @@ is replaced with "\fIyy\fR", the last two digits of the year.
 .TP
 .B %_
 (percent-underscore) is replaced with a newline.  You can use this to
-achieve multi-line reminders.
+achieve multi-line reminders.  Note that calendar back-ends vary in
+how they handle multi-line reminders:
+.RS
+.TP
+.B o
+Running \fBremind -c\fR preserves newlines in the terminal calendar output.
+.TP
+.B o
+\fBrem2pdf\fR preserves newlines if \fBremind\fR is invoked with the \fB\-pp\fR
+or \fB\-ppp\fR option.
+.TP
+.B o
+\fBrem2html\fR preserves newlines if \fBremind\fR is invoked with the
+\fB\-pp\fR option.
+.TP
+.B o
+\fBtkremind\fR preserves newlines.\fR
+.TP
+.B o
+\fBrem2ps\fR converts newlines to spaces.  But \fBrem2ps\fR is deprecated;
+use \fBrem2pdf\fR instead.
+.TP
+.B o
+The "simple calendar" formats (ie, \fBremind\fR's \fB\-s\fR, \fB\-n\fR and
+\fB\-p\fR options) convert newlines to spaces.
+.PP
+All calendar back-ends collapse multiple spaces to a single space and
+multiple newlines to a single newline.
+.RE
 .TP
 .B %1
 is replaced with "now", "\fIm\fR minutes from now", "\fIm\fR minutes ago",
@@ -1650,7 +1761,7 @@ or:
 The \fBOMIT\fR command is used to "globally" omit certain days
 (usually holidays).  These globally-omitted days are skipped by the
 "\-" and "+" forms of \fIback\fR and \fIdelta\fR, but not by the
-"\-\-" and "\+\+" forms.  Some examples:
+"\-\-" and "++" forms.  Some examples:
 .PP
 .nf
     OMIT Saturday Sunday
@@ -1870,24 +1981,6 @@ If you run \fBRemind\fR with the \fB\-r\fR command-line option,
 regardless of any \fBRUN\fR commands in the reminder script.  However,
 any command supplied with the \fB\-k\fR option will still be executed.
 .PP
-One use of the \fBRUN\fR command is to provide a secure interface
-between \fBRemind\fR and the \fBElm\fR mail system.  The \fBElm\fR
-system can automatically scan incoming mail for reminder or calendar
-entries, and place them in your calendar file.  To use this feature,
-you should set the calendar filename option under \fBElm\fR to be something
-like "~/.reminders.in", \fInot\fR your main reminder file!  This is
-so that any \fBRUN ON\fR commands mailed to you can never be activated.
-.PP
-Then, you can use the \fBElm\fR \fIscan message for calendar entries\fR
-command to place reminders prefaced by "->" into .reminders.in.  In
-your main .reminders file, include the following lines:
-.PP
-.nf
-	RUN OFF   # Disable RUN
-	INCLUDE .reminders.in
-	RUN ON    # Re-enable RUN
-.fi
-.PP
 In addition, \fBRemind\fR contains a few other security
 features.  It will not read a file that is group- or world-writable.
 It will not run set-uid.  If it reads a file you don't own, it will
@@ -1899,6 +1992,30 @@ attempt to check the ownership of standard input, even if it is
 coming from a file, and hence does \fInot\fR disable RUN and shell()
 in this situation.
 
+.PP
+.SH THE EXPR COMMAND
+.PP
+\fBRemind\fR lets you completely disable expression evaluation.  This
+could be useful if you are running Remind on a somewhat-untrustworthy
+file that is not expected to contain expressions.  To disable
+expression evaluation, use:
+.PP
+.nf
+        EXPR OFF
+.fi
+.PP
+If \fBRemind\fR encounters an expression while EXPR OFF is in effect, it
+returns an error
+.PP
+To re-enable expression evaluation, use:
+.PP
+.nf
+        EXPR ON
+.fi
+.PP
+As with \fBRUN ON\fB, \fBEXPR ON\fR can be used only in the top-level
+script, not in an included file.
+.PP
 .SH THE INCLUDECMD COMMAND
 .PP
 \fBRemind\fR allows you to execute a shell command and evaluate the
@@ -1940,6 +2057,10 @@ your INCLUDECMD uses expression-pasting that results in differences depending
 on the value of \fBtoday()\fR, then each \fIunique\fR version of the
 command will be executed once.
 .PP
+If a given reminder file contains more than one identical
+\fBINCLUDECMD\fR, only the first one will actually be executed.  All
+subsequent identical ones will use the cached output from the first one.
+.PP
 
 .SH THE BANNER COMMAND
 .PP
@@ -2089,6 +2210,11 @@ If the \fBTIME\fR is used where \fBRemind\fR expects a time-of-day
 \fIpm\fR suffix and the hour can be as large as you want, so long
 as the total number of minutes in the duration fits in a signed integer
 variable.
+.PP
+For convenience, a \fBTIME\fR constant may be surrounded by single
+quotes to match \fBDATE\fR and \fBDATETIME\fR constants, but these
+quotes are optional.  That is, 12:56 and '12:56' represent the same
+\fBTIME\fR constant.
 .RE
 .TP
 .B DATE constants
@@ -2123,11 +2249,11 @@ and time separator characters for \fBDATE\fR and \fBTIME\fR constants apply
 also to \fBDATETIME\fR constants.
 .RE
 .PP
-.B ZERO VALUES
+.B ZERO VALUES AND TRUE/FALSE
 .PP
-The non-string types all have an associated \fIzero\fR value, which is
-treated as "false" by the IF command and the logical operators.  The
-zero values are:
+All types have an associated \fIzero value\fR, which is treated as
+\fIfalse\fR by the IF command, the IIF function, and the logical
+operators.  The zero values are:
 .PP
 .RS
 .PP
@@ -2138,10 +2264,11 @@ zero values are:
 \fBTIME\fR - 00:00
 .PP
 \fBDATETIME\fR - '1990-01-01@00:00'
+.PP
+\fBSTRING\fR - "" (the empty string)
 .RE
 .PP
-Additionally, for the purpose of the IF command (but \fInot\fR the
-logical operators) the empty string "" is considered a false value.
+Any value other than the \fIzero value\fR is treated as \fItrue\fR.
 .PP
 .B OPERATORS
 .PP
@@ -2151,21 +2278,21 @@ than those on higher lines.  The operators approximately correspond to
 C operators.
 .PP
 .nf
-	!  -     (unary logical negation and arithmetic negation)
-	*  /  %
-	+  -
-	<  <=  >  >=
-	==  !=
-	&&
-	||
+	!  -            (unary logical negation and arithmetic negation)
+	*  /  %         (multiplication, division, modulus)
+	+  -            (addition/concatenation, subtraction)
+	<  <=  >  >=    (comparisons)
+	==  !=          (equality and inequality tests)
+	&&              (logical AND)
+	||              (logical OR)
 .fi
 .PP
 .B DESCRIPTION OF OPERATORS
 .PP
 .TP
 .B !
-Logical negation.  Can be applied to an \fBINT\fR type.  If the operand
-is non-zero, returns zero.  Otherwise, returns 1.
+Logical negation.  Can be applied to any type.  If the operand
+is non-zero, returns 0.  Otherwise, returns 1.
 .TP
 .B \-
 Unary minus.  Can be applied to an \fBINT\fR.  Returns the negative
@@ -2269,16 +2396,16 @@ If the operands are not of the same type, == returns 0 and != returns
 .RE
 .TP
 .B &&
-This is the logical AND operator.  Both of its operands must be of the
-same type and must not be \fBSTRING\fR type.  Returns the second
-operand if both operands are non-zero.  Otherwise, returns a zero
-of the same type as the operands.
+This is the logical AND operator.  Returns the second operand if both
+operands are non-zero.  Otherwise, returns whichever operand is zero.
+Operands can be any type and "zero" is interpreted as appropriate for
+each operand's type.
 .TP
 .B ||
-This is the logical OR operator.  Both of its operands must be of
-the same type and must not be of \fBSTRING\fR type.  It returns
-the first operand that is non-zero; if both operands are zero, then
-returns a zero of the same type as the operands.
+This is the logical OR operator.  It returns the first operand that is
+non-zero; if both operands are zero, then returns the second operand.
+Operands can be any type and "zero" is interpreted as appropriate for
+each operand's type.
 .PP
 .B NOTES
 .PP
@@ -2299,15 +2426,10 @@ For example:
 	12:59 + (1 + "test")  yields "12:591test"
 .fi
 .PP
-The logical operators are \fInot\fR so-called short-circuit operators, as
-they are in C.  Both operands are always evaluated.  Thus, an expression
-such as:
-.PP
-.nf
-	(f!=0) && (100/f <= 3)
-.fi
-.PP
-will cause an error if f is zero.
+The logical operators are so-called short-circuit operators, as
+they are in C.  This means that if the first operand of || is true,
+then the second operand is \fInot\fR evaluated.  Similarly, if the first
+operand of && is false, then the second operand is \fInot\fR evaluated.
 .PP
 .B VARIABLES
 .PP
@@ -2389,9 +2511,9 @@ Universal Time Coordinated in the \fB$MinsFromUTC\fR system variable.
 If non-zero, then the \fB\-c\fR option was supplied on the command line.
 .TP
 .B $Daemon (read-only)
-If the daemon mode \fB\-z\fR was invoked, contains the number of
+If "daemon mode" \fB\-z\fR was invoked, contains the number of
 minutes between wakeups.  If not running in daemon mode, contains
-0.
+0.  In server mode (either \fB-z0\fR or \fB-zj\fR), contains -1.
 .TP
 .B $DateSep
 This variable can be set only to "/" or "-".  It holds the character
@@ -2464,6 +2586,14 @@ because the final parenthesis and quote are ignored (for the purposes
 of spacing) when they follow a period.
 .RE
 .TP
+.B $ExpressionTimeLimit
+If set to a non-zero value \fIn\fR, than any expression that takes longer than
+\fIn\fR seconds to evaluate will be aborted and an error returned.  This is
+to prevent maliciously-crafted expressions for creating a denial-of-service.
+In an included file, $ExpressionTimeLimit can only be lowered from its
+current value.  In the top-level file, it can be set to any value, including
+zero to disable the time limit.
+.TP
 .B $FirstIndent
 The number of spaces by which to indent the first line of a \fBMSF\fR-type
 reminder.  The default is 0.
@@ -2492,9 +2622,9 @@ truncated - the width limit will be ignored.
 If non-zero, then the \fB\-h\fR option was supplied on the command line.
 .TP
 .B $IgnoreOnce (read-only)
-If non-zero, then the \fB\-o\fR option was supplied on the command line,
-or a date different from today's true date was supplied.  If non-zero,
-then \fBONCE\fR directives will be ignored.
+If non-zero, then the \fB\-o\fR option was supplied on the command
+line, or implicitly enabled for some other reason.  In this case,
+\fBONCE\fR directives will be ignored.
 .TP
 .B $InfDelta (read-only)
 If non-zero, then the \fB\-t\fR option was supplied on the command line,
@@ -2651,6 +2781,20 @@ by \fBREM\fR commands; triggers in \fBIFTRIG\fR commands do
 not affect it.
 .RE
 .TP
+.B $OnceFile (STRING type)
+If you set this variable to a non-empty string, then rather than using
+the file access date to determine whether or not to run a ONCE-type
+reminder, \fBRemind\fR will maintain a timestamp in the file \fB$OnceFile\fR.
+This is more reliable than using the access date of the reminder file.
+.RS
+.PP
+If \fB$OnceFile\fR does not exist, then it will be created the first time
+a \fBONCE\fR keyword is processed.  The file must be writable by the
+current user.  If you try to set \fB$OnceFile\fR \fIafter\fR a \fBONCE\fR
+reminder has already been processed, \fBRemind\fR will issue a warning
+and ignore the attempt to set \fB$OnceFile\fR.
+.RE
+.TP
 .B $ParseUntriggered
 A flag indicating whether or not \fBRemind\fR should fully parse \fBREM\fR
 statements that are not triggered.  0 means to skip parsing them and 1
@@ -2702,8 +2846,15 @@ order, or 2 if sorting by time in descending order.
 The number of spaces by which all lines (except the first) of an
 \fBMSF\fR-type reminder should be indented.  The default is 0.
 .TP
+.B $SuppressImplicitWarnings
+Normally, \fBRemind\fR issues a warning if a line begins with an unknown
+token and is treated as a \fBREM\fR command, or if a \fBREM\fR command
+is missing a type and is treated as a \fBMSG\fR-type reminder.  Setting
+\fB$SuppressImplicitWarnings\fR to 1 suppresses these warnings.  The default
+is 0 and we do not recommend disabling the warnings.
+.TP
 .B $SuppressLRM
-Normally, when Remind is run with the \fB\-c\fR option in a UTF-8 locale,
+Normally, when \fBRemind\fR is run with the \fB\-c\fR option in a UTF-8 locale,
 it emits a left-to-right mark sequence after printing day names or
 reminders.  Some terminals render this incorrectly, so you can use:
 .RS
@@ -2737,6 +2888,9 @@ Equivalent to \fBwkdaynum(trigdate())\fR.
 .B $Ty (read-only)
 Equivalent to \fByear(trigdate())\fR.
 .TP
+.B $Tt (read-only, TIME type)
+Equivalent to \fBtrigtime()\fR.
+.TP
 .B $TimeSep
 This variable can be set only to ":" or ".".  It holds the character
 used to separate portions of a time when \fBRemind\fR prints a TIME or
@@ -2826,18 +2980,25 @@ is supplied, only the date component is used.
 Returns the time of "astronomical twilight" on the specified \fIdate\fR.  If
 \fIdate\fR is omitted, defaults to \fBtoday()\fR.
 .TP
-.B ampm(tq_time [,s_am [,s_pm]])
+.B ampm(tq_time [,s_am [,s_pm [,i_lz]]])
 Returns a \fBSTRING\fR that is the result of converting \fItime\fR
 (which is either a \fBTIME\fR or a \fBDATETIME\fR object) to "AM/PM"
 format.  The optional arguments \fIam\fR and \fIpm\fR are the strings
 to append in the AM and PM case, respectively; they default to "AM"
-and "PM".  The function obeys the system variables $DateSep,
-$TimeSep and $DateTimeSep when formatting its output.  For example:
+and "PM".  The optional argument \fIlz\fR specifies whether or not
+the hour should be padded to two digits with a leading zero.  If \fIlz\fR is
+zero, then a leading 0 is not added; otherwise, the hour is padded out to
+two digits with a leading zero.  If not supplied, \fIlz\fR defaults to zero.
 .RS
 .PP
+The function obeys the system variables $DateSep, $TimeSep and
+$DateTimeSep when formatting its output.  Here are some examples of
+its output:
+.PP
 .nf
         ampm(0:22)                 returns "12:22AM"
         ampm(17:45, "am", "pm")    returns "5:45pm"
+        ampm(17:45, "am", "pm", 1) returns "05:45pm"
         ampm('2020-03-14@21:34')   returns "2020-03-14@9:34PM"
 .fi
 .PP
@@ -2940,8 +3101,9 @@ arguments, then the last argument is returned.  Examples:
 		\fBchoose(4, "foo", 1:13, 1000)\fR returns 1000
 .fi
 .RS
-Note that all arguments to \fBchoose()\fR are \fIalways\fR
-evaluated.
+.PP
+Note that only the first argument and the chosen result are
+evaluated.  Any non-chosen arguments will not be evaluated.
 .RE
 .TP
 .B coerce(s_type, x_arg)
@@ -3197,14 +3359,15 @@ out.  The stripping algorithm is fairly naive; the function starts
 stripping characters when it encounters a "<" and it stops stripping
 when it encounters a ">".
 .TP
-.B iif(si_test1, x_arg1, [si_test2, x_arg2,...], x_default)
-If \fItest1\fR is not zero or the null string, returns \fIarg1\fR.
-Otherwise, if \fItest2\fR is not zero or the null string, returns
-\fIarg2\fR, and so on.  If all of the \fItest\fR arguments are false,
-returns \fIdefault\fR.  Note that all arguments are \fIalways\fR evaluated.
-This function accepts an odd number of arguments - note that prior to version
-03.00.05 of \fBRemind\fR, it accepted 3 arguments only.  The 3-argument
-version of \fBiif()\fR is compatible with previous versions of \fBRemind\fR.
+.B iif(x_test1, x_arg1, [x_test2, x_arg2,...], x_default)
+If \fItest1\fR is true, returns \fIarg1\fR.  Otherwise, if \fItest2\fR
+is true, returns \fIarg2\fR, and so on.  If all of the \fItest\fR
+arguments are false, returns \fIdefault\fR.  Note that only
+those arguments needed to determine the final result are
+evaluated.  This function accepts an odd number of
+arguments - note that prior to version 03.00.05 of \fBRemind\fR, it
+accepted 3 arguments only.  The 3-argument version of \fBiif()\fR is
+compatible with previous versions of \fBRemind\fR.
 .TP
 .B index(s_search, s_target [,i_start)
 Returns an \fBINT\fR that is the location of \fItarget\fR in the
@@ -3350,6 +3513,62 @@ which default to \fBtoday()\fR and midnight, respectively.  The returned
 value is an integer from 0 to 359, representing the phase of the moon
 in degrees.  0 is a new moon, 180 is a full moon, 90 is first-quarter, etc.
 .TP
+.B multitrig(s_trig1 [,s_trig2, [... s_trigN]])
+\fBmultitrig\fR evaluates each string as a trigger, similar to \fBevaltrig\fR,
+and returns the \fIearliest\fR trigger date that is on or after \fBtoday()\fR.
+\fBmultitrig\fR is similar to \fBtrig\fR but has the following difference:
+.RS
+.PP
+\fBtrig\fR returns the \fIfirst\fR trigger date that would have triggered today,
+whereas \fBmultitrig\fR returns the \fIearliest\fR trigger date later than
+today, regardless of whether it would have triggered today.
+.PP
+If no trigger can be computed that is later than \fBtoday()\fR, then
+\fBmultitrig\fR returns 1990-01-01.
+.PP
+Consider the following examples, assuming that today is Sunday, 24 March 2024:
+.PP
+.nf
+   # Returns 1990-01-01 because neither would trigger today
+   SET a trig("Mon", "Wed")
+
+   # Returns 2024-03-25 because it's the earlier trigger date
+   SET a multitrig("Mon", "Wed")
+
+   # Returns 2024-03-27 because it's the first that would trigger today
+   SET a trig("Wed +3", "Mon +3")
+
+   # Returns 2024-03-25 because it's the earlier trigger date
+   SET a multitrig("Wed +3", "Mon +3")
+
+   # Returns 1990-01-01 because all triggers have expired
+   SET a multitrig("2000", "2022", "1998", "2023")
+.fi
+.PP
+In general, \fBmultitrig\fR works better with the Remind algorithm than
+\fBtrig\fR and should be used most of the time.  As an example, this
+reminder is issued at the end of each quarter:
+.PP
+.nf
+    REM [multitrig("Mar 31", "Jun 30", "Sep 30", "Dec 31")] +7 MSG \\
+    %"End of [ord($Tm/3)] quarter%" is %b.
+.fi
+.PP
+If you want the last working day of each quarter, you could use:
+.PP
+.nf
+    PUSH-OMIT-CONTEXT
+    OMIT Sat Sun
+    REM [multitrig("Mar ~1", "Jun ~1", "Sep ~1", "Dec ~1")] +7 MSG \\
+    %"Last working day of [ord($Tm/3)] quarter%" is %b.
+    POP-OMIT-CONTEXT
+.fi
+.PP
+Note that unlike \fBevaltrig\fR, \fBmultitrig\fR always returns a \fBDATE\fR
+and never a \fBDATETIME\fR.  Including an \fBAT\fR clause in a trigger
+supplied to \fBmultitrig\fR will result in an error.
+.RE
+.TP
 .B ndawn([dq_date])
 Returns the time of "nautical dawn" on the specified \fIdate\fR.  If
 \fIdate\fR is omitted, defaults to \fBtoday()\fR.  If a \fIdatetime\fR object
@@ -3769,7 +3988,7 @@ function for advance warning to work properly.  This is because
 \fBtrig\fR returns a date constant (the trigger date) and the
 REM command does not know the details of \fBtrig\fR's arguments.
 .PP
-Note that because \fBRemind\fR does not have short-circuit logical
+Note that because \fBRemind\fR has short-circuit logical
 operators, something like:
 .PP
 .nf
@@ -3777,58 +3996,9 @@ operators, something like:
 .fi
 
 would set the value of trig() to the date of the following
-Thursday.  Even though trig("Mon +7") always returns true,
-the logical-OR operator still evaluates trig("Fri +7") which
-\fIalso\fR returns true and sets \fBtrig()\fR.
-.PP
-You can work around the lack of a short-circuit logical-OR as follows:
-If \fBtrig\fR returns a true value, the specific value it returns
-can be coerced to a DATE which is the trigger date.  So the following code:
-.PP
-.nf
-    SET a trig("Mon +4") || trig("Fri +4")
-    IF a
-        REM [a] +4 MSG [wkday($T)] %b.
-    ENDIF
-.fi
-.PP
-would operate as follows:
-.PP
-.nf
-    On Monday:    Monday today.
-    On Tuesday:   Friday in 3 days' time.
-    On Wednesday: Friday in 2 days' time.
-    On Thursday:  Monday in 4 days' time.
-    On Friday:    Monday in 3 days' time.
-    On Saturday:  Monday in 2 days' time.
-    On Sunday:    Monday tomorrow.
-.fi
-.PP
-Compare with the following:
-.PP
-.nf
-    SET a trig("Mon +4") || trig("Fri +4")
-    IF a
-        REM [trig()] +4 MSG [wkday($T)] %b.
-    ENDIF
-.fi
-.PP
-which yields:
-.PP
-.nf
-    On Monday:    Friday in 4 days' time.
-    On Tuesday:   Friday in 3 days' time.
-    On Wednesday: Friday in 2 days' time.
-    On Thursday:  Friday tomorrow.
-    On Friday:    Friday today.
-    On Saturday:  Monday in 2 days' time.
-    On Sunday:    Monday tomorrow.
-.fi
-.PP
-That is because \fBtrig()\fR returns the trigger date of
-the \fIlast\fR trig function that returns true,
-whereas the value of \fBa\fR is the trigger date of the \fIfirst\fR
-trig function that returns true.
+Monday.  Because trig("Mon +7") always returns true,
+the logical-OR operator does not bother evaluating trig("Fri +7") which
+therefore does not set \fBtrig()\fR.
 .PP
 \fBImportant Note\fR:  Because \fBtrig()\fR always returns an absolute
 date, it will \fBnot\fR work properly with a \fBSATISFY\fR clause.
@@ -4168,6 +4338,14 @@ with square brackets.  For example:
 This evaluates the expression "mydate", where "mydate" is
 presumably some pre-computed variable, and then "pastes" the result
 into the command-line for the parser to process.
+.PP
+If you want a literal "[" character for some reason, simply use "[[".  For
+example:
+.PP
+.nf
+        REM MSG Here are [[square] brackets!
+.fi
+
 .PP
 A formal description of this is:  When \fBRemind\fR encounters a
 "pasted-in" expression, it evaluates the expression, and coerces the
@@ -4404,11 +4582,10 @@ The above sequence sets y to 1, which is the global value of x.
 .TP
 o
 User-defined functions may call other functions, including other user-defined
-functions.  However, recursive calls are not allowed.
-.TP
-o
-User-defined functions are not syntax-checked when they are defined; parsing
-occurs only when they are called.
+functions.  Recursive calls are allowed, but they must terminate (for
+example, by using a short-circuit operator or function that breaks the
+recursion) or an error will result after a certain maximum number of
+recursive calls (by default, 1000.)
 .TP
 o
 If a user-defined function has the same name as a built-in function,
@@ -4430,6 +4607,11 @@ or thirdfunc will exist.  \fBRemind\fR does not issue an error if you
 try to \fBFUNSET\fR a nonexistent user-defined function; it simply
 does nothing in that case.
 .PP
+If you define a user-defined function and then later on redefine it,
+\fBRemind\fR will issue a warning.  If you do not want this warning,
+then use \fBFUNSET\fR to remove the existing definition before you
+redefine the function.
+.PP
 .SH PRECISE SCHEDULING
 .PP
 The \fBWARN\fR keyword allows precise control over advance warning in
@@ -4563,8 +4745,11 @@ the error message "Can't compute trigger" is issued.  Otherwise,
 \fBtrigvalid()\fR is set to 1.
 .PP
 This is really useful only if \fIexpr\fR involves a call to the
-\fBtrigdate()\fR or related functions; otherwise, \fIexpr\fR will not change as
-\fBRemind\fR iterates.
+\fBtrigdate()\fR or related functions or system variables; otherwise,
+\fIexpr\fR will not change as \fBRemind\fR iterates.  In fact, if
+\fIexpr\fR is not a constant and does not call \fBtrigdate()\fR or
+related functions or system variables, then \fBRemind\fR will issue a
+warning.
 .PP
 An example of the usefulness of \fBSATISFY\fR:  Suppose you wish to
 be warned of every Friday the 13th.  Your first attempt may be:
@@ -4715,7 +4900,7 @@ under program control.  The format is:
 .PP
 \fBDEBUG\fR [+\fIflagson\fR] [\-\fIflagsoff\fR]
 .PP
-\fIFlagson\fR and \fIflagsoff\fR consist of strings of the characters "extvlf"
+\fIFlagson\fR and \fIflagsoff\fR consist of strings of the characters "extvlfs"
 that correspond to the debugging options discussed in the command-line
 options section.  If preceded with a "+", the corresponding group of
 debugging options is switched on.  Otherwise, they are switched off.
@@ -5019,21 +5204,25 @@ structuring comments in your PostScript code.
 .PP
 .SH DAEMON MODE
 .PP
-If you use the \fB\-z\fR command-line option, \fBRemind\fR runs in the
-"daemon" mode.  In this mode, no "normal" reminders are issued.
+If you use the \fB\-z\fR command-line option, \fBRemind\fR runs in
+"daemon mode".  In this mode, no "normal" reminders are issued.
 Instead, only timed reminders are collected and queued, and are then
 issued whenever they reach their trigger time.
 .PP
-In addition, \fBRemind\fR wakes up every few minutes to check the modification
-date on the reminder script (the filename supplied on the command line.)
-If \fBRemind\fR detects that the script has changed, it re-executes itself
-in daemon mode, and interprets the changed script.
+In addition, \fBRemind\fR wakes up every few minutes to check the
+modification date on the reminder script (the filename supplied on the
+command line.)  If \fBRemind\fR detects that the script has changed,
+it re-executes itself in daemon mode, and interprets the changed
+script.  If \fBRemind\fR was compiled with support for
+\fBinotify\fR(7), then if the command-line reminder script is really a
+directory, \fBRemind\fR also re-executes itself if any of the files in
+the directory is changed.
 .PP
 In daemon mode, \fBRemind\fR also re-reads the remind script when it
 detects that the system date has changed.
 .PP
 In daemon mode, \fBRemind\fR acts as if the \fB\-f\fR option had been used,
-so to run in the daemon mode in the background, use:
+so to run in daemon mode in the background, use:
 .PP
 .nf
 	remind \-z .reminders &
@@ -5363,7 +5552,7 @@ as:
 .PP
 You can define your own substitution sequences in addition to the built-in
 ones as follows:  If you define a function named \fBsubst_\fIname\fB(alt, date, time)\fR, then the sequence \fB%{name}\fR calls the function with \fBalt\fR
-set to 0 and \fBdate\fR and \fRtime\fR to the trigger date and time,
+set to 0 and \fBdate\fR and \fBtime\fR to the trigger date and time,
 respectively.  The \fB%{name}\fR sequence is replaced with whatever the
 function returns.  The sequence \fB%*{name}\fR is similar, but calls
 the function with \fBalt\fR set to 1.
@@ -5691,10 +5880,6 @@ after the WEEK keyword.
 The following tokens can be abbreviated:
 .TP
 o
-\fBREM\fR can be omitted - it is implied if no other valid command
-is present.
-.TP
-o
 \fBCLEAR-OMIT-CONTEXT\fR --> \fBCLEAR\fR
 .TP
 o

man/tkremind.1.in

@@ -184,7 +184,9 @@ on the reminder.
 If there are any errors in your reminder file, the "Queue..." button
 changes to "Errors...".  Click on "Errors..." to see the Remind error
 output.  Click "OK" to close the error window; this makes the button
-in the main TkRemind window to revert to "Queue..."
+in the main TkRemind window to revert to "Queue..."  You can click on
+any error message to open an editor on the file and line number that
+caused the error.
 
 .SH BACKGROUND REMINDERS
 
@@ -222,6 +224,14 @@ If this is selected, pop-up reminder boxes will be closed after one minute
 has elapsed.  Otherwise, they remain on your screen forever until you
 explicitly dismiss them.
 
+.TP
+.B Use system notifications when issuing a reminder
+This option is available only for Tcl/Tk version 9.0 or later, or if
+you have the \fBnotify-send\fR program installed; it will be greyed
+out if neither condition is true.  If selected, then when a reminder
+is popped up, it will also be sent to the desktop notification system,
+causing a notification to appear.
+
 .TP
 .B Beep terminal when popping up a reminder
 If selected, \fBTkRemind\fR beeps the terminal bell when a queued reminder
@@ -264,7 +274,7 @@ Useful strings might be "emacs +%d %s" or "gvim +%d %s"
 .TP
 .B Extra Argument for Remind
 This specifies any extra arguments that should be passed to Remind
-when \BTkRemind\fR invokes \fBremind\fR.  Unless you know what
+when \fBTkRemind\fR invokes \fBremind\fR.  Unless you know what
 you are doing, leave this blank.
 
 .TP
@@ -403,6 +413,10 @@ like this:
 The value of the \fBqueue\fR key is an array of JSON objects, each
 representing a queued reminder.
 
+.TP
+DEL \fIqid\fR
+Delete the reminder with queue-id \fIqid\fR from the queue.
+
 .TP
 REREAD
 Re-read the reminder file.  Returns the following status line:
@@ -419,15 +433,19 @@ Additional status lines written are as follows:
 .TP
 .nf
 
-{"response":"reminder","ttime":tt,"now":now,"tags":tags,"body":body}
+{"response":"reminder","ttime":tt,"now":now,"tags":tags,"qid":qid,"body":body}
 
 .fi
 In this line, \fItt\fR is the trigger time of the reminder (expressed
 as a string), \fInow\fR is the current time, \fItags\fR (if present)
-is the tag or tags associated with the reminder, and \fIbody\fR is
-the body of the reminder.  This response causes \fBTkRemind\fR to
-pop up a reminder notification.
-
+is the tag or tags associated with the reminder, and \fIbody\fR is the
+body of the reminder.  This response causes \fBTkRemind\fR to pop up a
+reminder notification.  \fIqid\fR is a unique identifier for this
+reminder.  You may delete it from the queue by sending a \fBDEL\fR
+\fIqid\fR command to the server.  Note that \fIqid\fRs are not stable
+across re-reads; if \fBRemind\fR restarts itself to re-read the reminder
+file, then the \fIqid\fR values are likely to change, and any reminder
+deleted with a \fBDEL\fR \fIqid\fR command is likely to be re-queued.
 .TP
 .nf
 

rem2html/Makefile.in

@@ -15,7 +15,7 @@ install:
 	@if test "$(PERL)" = "" ; then \
 	    echo "Not installing rem2html; Perl is required"; exit 0; fi; \
 	 for m in $(PERLMODS_NEEDED) ; \
-         do \
+	do \
 	    $(PERL) -M$$m -e 1 > /dev/null 2>&1; \
 	    if test $$? != 0 ; then echo "Not installing rem2html; missing $$m"; exit 0; fi; \
 	done; \

rem2html/rem2html.in

@@ -26,12 +26,12 @@ rem2html - Convert the output of "remind -pp" to HTML
 
 =head1 SYNOPSIS
 
-    remind -pp ... | rem2html [options]
+    remind -pp [remind_options] file | rem2html [options]
 
 You can also use the old interchange format as below, but the -pp
 version is preferred.
 
-    remind -p ... | rem2html [options]
+    remind -p [remind_options] file | rem2html [options]
 
 =head1 OPTIONS
 
@@ -155,7 +155,7 @@ sub usage
     print STDERR <<"EOM";
 $TIDY_PROGNAME: Produce an HTML calendar from the output of "remind -pp"
 
-Usage: remind -pp ... | rem2html [options]
+Usage: remind -pp [remind_options] file | rem2html [options]
 
 Options:
 
@@ -374,19 +374,37 @@ sub parse_input
 						($1 % 256), ($1 % 256), ($1 % 256));
 		}
 	} elsif ($special eq 'COLOR' || $special eq 'COLOUR') {
-		if ($body =~ /(\d+)\s+(\d+)\s+(\d+)\s+(.*)$/) {
+		if ($body =~ /(\d+)\s+(\d+)\s+(\d+)\s+(.*)$/s) {
 			my($r, $g, $b, $text) = ($1, $2, $3, $4);
 			my $color = sprintf("style=\"color: #%02X%02X%02X;\"",
 					    $r % 256, $g % 256, $b % 256);
-			push(@{$days->[$d]}, "<p$class $color>" . escape_html($text) . '</p>');
+			push(@{$days->[$d]}, "<p$class $color>" . fix_whitespace(escape_html($text)) . '</p>');
 		}
 	} elsif ($special eq '*') {
-	    push(@{$days->[$d]}, "<p$class>" . escape_html($body) . '</p>');
+	    push(@{$days->[$d]}, "<p$class>" . fix_whitespace(escape_html($body)) . '</p>');
 	}
     }
     return $found_data;
 }
 
+sub fix_whitespace
+{
+        my ($text) = @_;
+
+        # Collapse multiple spaces/tabs to a single space
+        $text =~ s/[ \t]+/ /gs;
+
+        # Remove whitespace before/after newlines
+        $text =~ s/\s+\n/\n/gs;
+        $text =~ s/\n\s+/\n/gs;
+        # Collapse multiple newlines to a single newline
+        $text =~ s/\n+/\n/gs;
+
+        # Convert newlines to <br />
+        $text =~ s|\n|<br />|g;
+        return $text;
+}
+
 sub small_calendar
 {
 	my($month, $monlen, $url, $first_col) = @_;

rem2pdf/bin/rem2pdf.in

@@ -60,7 +60,9 @@ my $settings = {
         margin_bottom => 36,
         margin_left => 36,
         margin_right => 36,
-
+        svg => 0,
+        ps => 0,
+        eps => 0,
         verbose => 0,
 };
 
@@ -80,6 +82,9 @@ Options:
 
 --landscape, -l         Print in landscape orientation
 --small-calendars=N     Choose location for small calendars
+--svg                   Output SVG instead of PDF
+--ps                    Output PostScript instead of PDF
+--eps                   Output encapsulated PostScript instead of PDF
 -cN                     Synonym for --small-calendars=N
 --left-numbers, -x      Print day numbers on the left
 --fill-page, -e         Fill the entire page
@@ -112,6 +117,9 @@ Getopt::Long::Configure('bundling_values');
 my $ret = GetOptions('landscape|l' =>        \$settings->{landscape},
                      'small-calendars|c=i' =>  \$settings->{small_calendars},
                      'left-numbers|x' =>     \$settings->{numbers_on_left},
+                     'svg'         =>        \$settings->{svg},
+                     'ps'          =>        \$settings->{ps},
+                     'eps'         =>        \$settings->{eps},
                      'fill-page|e' =>        \$settings->{fill_entire_page},
                      'media|m=s' =>          \$settings->{media},
                      'width|w=i' =>          \$settings->{width},
@@ -176,6 +184,17 @@ if ($settings->{landscape}) {
         $settings->{height} = $tmp;
 }
 
+if ($settings->{svg} && $settings->{ps} ||
+    $settings->{svg} && $settings->{eps} ||
+    $settings->{eps} && $settings->{ps}) {
+        print STDERR "Only one of --eps, --ps or --svg may be used.\n";
+        exit(1);
+}
+
+if ($settings->{eps}) {
+        $settings->{ps} = 1;
+}
+
 # Don't read from a terminal
 if (-t STDIN) { ## no critic
         print STDERR "I can't read data from a terminal.  Please run like this:\n";
@@ -187,8 +206,25 @@ my $done_one = 0;
 
 my $errored_out = 0;
 
-my $surface = Cairo::PdfSurface->create_for_stream(sub { print $_[1] unless $errored_out; }, undef,
-                                                   $settings->{width}, $settings->{height});
+my $surface;
+if ($settings->{svg}) {
+        $surface = Cairo::SvgSurface->create_for_stream(sub { print $_[1] unless $errored_out; }, undef,
+                                                        $settings->{width}, $settings->{height});
+} elsif ($settings->{ps}) {
+        if ($settings->{landscape}) {
+                $surface = Cairo::PsSurface->create_for_stream(sub { print $_[1] unless $errored_out; }, undef,
+                                                               $settings->{height}, $settings->{width});
+        } else {
+                $surface = Cairo::PsSurface->create_for_stream(sub { print $_[1] unless $errored_out; }, undef,
+                                                               $settings->{width}, $settings->{height});
+        }
+        if ($settings->{eps}) {
+                $surface->set_eps(1);
+        }
+} else {
+        $surface = Cairo::PdfSurface->create_for_stream(sub { print $_[1] unless $errored_out; }, undef,
+                                                        $settings->{width}, $settings->{height});
+}
 
 # set_metadata not available in older versions of Cairo
 eval { $surface->set_metadata('title', 'Calendar'); };
@@ -196,10 +232,26 @@ eval { $surface->set_metadata('author', 'Remind (https://dianne.skoll.ca/project
 eval { $surface->set_metadata('creator', 'rem2pdf (https://dianne.skoll.ca/projects/remind/)'); };
 eval { $surface->set_metadata('subject', 'Calendar'); };
 
+if ($settings->{ps}) {
+        $surface->dsc_comment('%%Title: Calendar');
+        $surface->dsc_comment('%%Producer: rem2pdf (https://dianne.skoll.ca/projects/remind/)');
+        $surface->dsc_comment('%%PageOrientation: ' . (($settings->{landscape}) ? 'Landscape' : 'Portrait'));
+        $surface->dsc_begin_setup();
+}
+
 my $cr = Cairo::Context->create($surface);
 $cr->set_line_width($settings->{line_thickness});
+if ($settings->{ps} && $settings->{landscape}) {
+        $cr->translate(0, $settings->{width});
+        $cr->rotate(-1.5707963267949);  # Rotate -90 degrees
+}
 
+my $warned = 0;
 while(1) {
+        if ($settings->{ps}) {
+                $surface->dsc_begin_page_setup();
+                $surface->dsc_comment('%%PageOrientation: ' . (($settings->{landscape}) ? 'Landscape' : 'Portrait'));
+        }
         my ($obj, $err) = Remind::PDF->create_from_stream(*STDIN,
                                                           {color => 1,
                                                            shade => 1,
@@ -215,8 +267,15 @@ while(1) {
                 }
                 last;
         }
-        $done_one = 1;
+        if (($settings->{eps} || $settings->{svg}) && $done_one) {
+                if (!$warned) {
+                        print STDERR "WARNING: --eps and --svg can only output one page; ignoring subsequent\nmonths in a multi-month calendar.\n";
+                        $warned = 1;
+                }
+                next;
+        }
         $obj->render($cr, $settings);
+        $done_one = 1;
 }
 
 $surface->finish();
@@ -273,17 +332,22 @@ __END__
 
 =head1 NAME
 
-rem2pdf - draw a PDF calendar from Remind output
+rem2pdf - draw a PDF, SVG or PostScript calendar from Remind output
 
 =head1 SYNOPSIS
 
-    remind -pp [options] file | rem2pdf [options] > output.pdf
+    remind -pp [remind_options] file | rem2pdf [options] > output.pdf
+    remind -pp [remind_options] file | rem2pdf --svg [options] > output.svg
+    remind -pp [remind_options] file | rem2pdf --ps [options] > output.ps
+    remind -pp [remind_options] file | rem2pdf --eps [options] > output.eps
 
 =head1 DESCRIPTION
 
 B<rem2pdf> reads the standard input, which should be the results of
 running B<remind> with the B<-p>, B<-pp> or B<-ppp> options.  It emits
-PDF code that draws a calendar to standard output.
+PDF, SVG or PostScript code that draws a calendar to standard output.  (The
+addition of support for SVG and PostScript means that rem2pdf is increasingly
+misnamed...)
 
 B<rem2pdf> uses the Pango text formatting library (L<https://pango.gnome.org/>)
 and the Cairo graphics library (L<https://www.cairographics.org/>) to produce
@@ -298,6 +362,22 @@ output at all.
 
 =over
 
+=item --ps
+
+Output PostScript instead of PDF.
+
+=item --eps
+
+Output Encapsulated PostScript instead of PDF.  In this case, you
+should feed C<rem2pdf> only one month's worth of calendar data,
+because it cannot create a multi-page encapsulated PostScript file.
+
+=item --svg
+
+Output SVG instead of PDF.  In this case, you should feed C<rem2pdf>
+only one month's worth of calendar data, because it cannot create
+a multi-page SVG file.
+
 =item --landscape, -l
 
 Print the calendar in landscape orientation.  Essentially, this swaps
@@ -486,7 +566,7 @@ output for the invalid reminder.
 =head1 ABSOLUTELY-POSITIONED TEXT
 
 If your B<PANGO> special reminder starts with C<@I<x>,I<y>> where I<x>
-and I<y> are floating-point numbers, then the Pango marked-up test is
+and I<y> are floating-point numbers, then the Pango marked-up text is
 positioned absolutely with respect to the day's box (and is not
 counted when calculating the box's height.)
 

rem2pdf/lib/Remind/PDF.pm

@@ -1008,7 +1008,17 @@ as were read from the C<remind -ppp> stream
 sub render
 {
         my ($self, $cr, $settings) = @_;
+        my $done = 0;
+        my $warned = 0;
         foreach my $e (@{$self->{entries}}) {
+                if ($settings->{svg} && $done) {
+                        if (!$warned) {
+                                print STDERR "WARNING: --svg can only output one page; ignoring subsequent\nmonths in a multi-month calendar.\n";
+                                $warned = 1;
+                        }
+                        next;
+                }
+                $done = 1;
                 $e->render($cr, $settings);
         }
 }

rem2pdf/lib/Remind/PDF/Entry.pm

@@ -85,6 +85,18 @@ sub render
         } else {
                 $body = $self->{body};
         }
+
+        # Clean up the body:
+
+        # Collapse multiple spaces/tabs to a single space
+        $body =~ s/[ \t]+/ /gs;
+
+        # Remove whitespace before/after newlines
+        $body =~ s/\s+\n/\n/gs;
+        $body =~ s/\n\s+/\n/gs;
+        # Collapse multiple newlines to a single newline
+        $body =~ s/\n+/\n/gs;
+
         $layout->set_text(Encode::decode('UTF-8', $body));
         my $desc = Pango::FontDescription->from_string($settings->{entry_font} . ' ' . $settings->{entry_size} . 'px');
         $layout->set_font_description($desc);

src/Makefile.in

@@ -30,7 +30,7 @@ REMINDSRCS=	calendar.c dynbuf.c dorem.c dosubst.c expr.c files.c funcs.c \
 		globals.c hbcal.c init.c main.c md5.c moon.c omit.c queue.c \
 		sort.c token.c trigger.c userfns.c utils.c var.c
 
-REMINDHDRS=config.h custom.h dynbuf.h err.h expr.h globals.h lang.h \
+REMINDHDRS=config.h custom.h dynbuf.h err.h globals.h lang.h \
 	   md5.h protos.h rem2ps.h types.h version.h
 REMINDOBJS= $(REMINDSRCS:.c=.o)
 
@@ -63,15 +63,16 @@ install: all
 	done
 	-mkdir -p $(DESTDIR)$(datarootdir)/remind || true
 	cp -R ../include/* $(DESTDIR)$(datarootdir)/remind
-	-mkdir -p $(DESTDIR)$(prefix)/icons
-	-mkdir -p $(DESTDIR)$(prefix)/applications
-	$(INSTALL_DATA) $(srcdir)/../resources/tkremind.png $(DESTDIR)$(prefix)/icons
-	$(INSTALL_PROGRAM) $(srcdir)/../resources/tkremind.desktop $(DESTDIR)$(prefix)/applications
+	chmod -R a+rX $(DESTDIR)$(datarootdir)/remind
+	-mkdir -p $(DESTDIR)$(prefix)/share/pixmaps
+	-mkdir -p $(DESTDIR)$(prefix)/share/applications
+	$(INSTALL_DATA) $(srcdir)/../resources/tkremind.png $(DESTDIR)$(prefix)/share/pixmaps
+	$(INSTALL_PROGRAM) $(srcdir)/../resources/tkremind.desktop $(DESTDIR)$(prefix)/share/applications
 	-if test "$(DESTDIR)" = ""; then \
 	    update-desktop-database < /dev/null > /dev/null 2>&1 ; \
-	    xdg-icon-resource install --novendor --size 64 $(DESTDIR)$(prefix)/icons/tkremind.png < /dev/null > /dev/null 2>&1; \
-	    xdg-desktop-menu install --novendor $(DESTDIR)$(prefix)/applications/tkremind.desktop < /dev/null > /dev/null 2>&1 ; \
-        fi
+	    xdg-icon-resource install --novendor --size 64 $(DESTDIR)$(prefix)/share/pixmaps/tkremind.png < /dev/null > /dev/null 2>&1 || true; \
+	    xdg-desktop-menu install --novendor $(DESTDIR)$(prefix)/share/applications/tkremind.desktop < /dev/null > /dev/null 2>&1 || true; \
+	fi
 
 install-stripped: install
 	strip $(DESTDIR)$(bindir)/remind || true
@@ -80,9 +81,6 @@ install-stripped: install
 clean:
 	rm -f *.o *~ core *.bak $(PROGS)
 
-cppcheck:
-	cppcheck --force --enable=all --suppress=variableScope --suppress=ConfigurationNotChecked *.c
-
 clobber:
 	rm -f *.o *~ remind rem2ps test.out core *.bak
 
@@ -92,6 +90,9 @@ depend:
 # The next targets are not very useful to you.  I use them to build
 # distributions, etc.
 
+cppcheck:
+	cppcheck -j`nproc` --force --enable=all --suppress=ConfigurationNotChecked --suppress=unmatchedSuppression --suppress=variableScope --inline-suppr .
+
 # Build a tar file based on all files checked into git.
 distro:
 	cd .. && git archive --worktree-attributes --format=tar --prefix=remind-$(VERSION)/ HEAD > src/remind-$(VERSION).tar

src/calendar.c

@@ -35,7 +35,6 @@
 #include "lang.h"
 #include "types.h"
 #include "protos.h"
-#include "expr.h"
 #include "globals.h"
 #include "err.h"
 #include "md5.h"
@@ -282,6 +281,7 @@ static void ColorizeEntry(CalEntry const *e, int clamp);
 static void SortCol (CalEntry **col);
 static void DoCalendarOneWeek (int nleft);
 static void DoCalendarOneMonth (void);
+static void DoSimpleCalendarOneMonth (void);
 static int WriteCalendarRow (void);
 static void WriteWeekHeaderLine (void);
 static void WritePostHeaderLine (void);
@@ -339,6 +339,7 @@ UnBackgroundize(int d)
     printf("%s", Decolorize());
 }
 
+#ifdef REM_USE_WCHAR
 static void
 send_lrm(void)
 {
@@ -353,6 +354,7 @@ send_lrm(void)
         printf("\xE2\x80\x8E");
     }
 }
+#endif
 
 static char const *
 despace(char const *s)
@@ -527,9 +529,9 @@ get_month_abbrev(char const *mon)
 #endif
 }
 
+#ifdef REM_USE_WCHAR
 static int make_wchar_versions(CalEntry *e)
 {
-#ifdef REM_USE_WCHAR
     size_t len;
     wchar_t *buf;
     len = mbstowcs(NULL, e->text, 0);
@@ -543,10 +545,8 @@ static int make_wchar_versions(CalEntry *e)
     e->wc_text = buf;
     e->wc_pos = buf;
     return 1;
-#else
-    return 1;
-#endif
 }
+#endif
 
 static void gon(void)
 {
@@ -759,13 +759,11 @@ SetMoonEntry(int dse, char const *moon)
     if (sscanf(moon, "%d %*d %*d %27[^\x01]", &phase, msg) < 4) {
         if (sscanf(moon, "%d", &phase) != 1) {
             /* Malformed MOON special; ignore */
-            fprintf(stderr, "Oops 1\n");
             return;
         }
     }
     if (phase < 0 || phase > 3) {
         /* Bad phase */
-        fprintf(stderr, "Oops 2\n");
         return;
     }
     FromDSE(dse, &y, &m, &d);
@@ -903,13 +901,17 @@ static void DoCalendarOneWeek(int nleft)
             if (UseVTColors) {
                 printf("\x1B[1m"); /* Bold */
             }
+            Backgroundize(d);
 	    PrintLeft(buf, ColSpaces-1, '*');
+            putchar(' ');
+            UnBackgroundize(d);
             if (UseVTColors) {
                 printf("\x1B[0m"); /* Normal */
             }
-            putchar(' ');
         } else {
+            Backgroundize(d);
 	    PrintLeft(buf, ColSpaces, ' ');
+            UnBackgroundize(d);
         }
 	gon();
 	DRAW(tb);
@@ -966,21 +968,20 @@ static void DoCalendarOneWeek(int nleft)
 
 /***************************************************************/
 /*                                                             */
-/*  DoCalendarOneMonth                                         */
+/*  DoSimpleCalendarOneMonth                                   */
 /*                                                             */
-/*  Produce a calendar for the current month.                  */
+/*  Produce a "simple" calendar for the current month.         */
+/*                                                             */
+/*  A simple calendar is produced if the -s or -p option       */
+/*  was used.                                                  */
 /*                                                             */
 /***************************************************************/
-static void DoCalendarOneMonth(void)
+static void DoSimpleCalendarOneMonth(void)
 {
     int y, m, d, mm, yy, i, j;
 
     InitMoonsAndShades();
-
-    if (!DoSimpleCalendar) WriteCalHeader();
-
     DidADay = 0;
-
     if (PsCal) {
 	FromDSE(DSEToday, &y, &m, &d);
 	if (PsCal == PSCAL_LEVEL1) {
@@ -1041,7 +1042,7 @@ static void DoCalendarOneMonth(void)
 	    printf("\"entries\":[\n");
 	}
     }
-    while (WriteCalendarRow()) continue;
+    while (WriteCalendarRow()) /* continue */;
 
     if (PsCal == PSCAL_LEVEL1) {
 	printf("%s\n", PSEND);
@@ -1053,7 +1054,29 @@ static void DoCalendarOneMonth(void)
 	}
 	printf("]\n}");
     }
-    if (!DoSimpleCalendar) WriteCalTrailer();
+}
+
+/***************************************************************/
+/*                                                             */
+/*  DoCalendarOneMonth                                         */
+/*                                                             */
+/*  Produce a calendar for the current month.                  */
+/*                                                             */
+/***************************************************************/
+static void DoCalendarOneMonth(void)
+{
+    InitMoonsAndShades();
+
+    if (DoSimpleCalendar) {
+        DoSimpleCalendarOneMonth();
+        return;
+    }
+
+    WriteCalHeader();
+
+    while (WriteCalendarRow()) /* continue */;
+
+    WriteCalTrailer();
 }
 
 /***************************************************************/
@@ -1125,13 +1148,17 @@ static int WriteCalendarRow(void)
                 if (UseVTColors) {
                     printf("\x1B[1m"); /* Bold */
                 }
+                Backgroundize(d+i-wd);
 		PrintLeft(buf, ColSpaces-1, '*');
+		putchar(' ');
                 if (UseVTColors) {
                     printf("\x1B[0m"); /* Normal */
                 }
-		putchar(' ');
+                UnBackgroundize(d+i-wd);
 	    } else {
+                Backgroundize(d+i-wd);
 		PrintLeft(buf, ColSpaces, ' ');
+                UnBackgroundize(d+i-wd);
 	    }
 	}
 	gon();
@@ -1199,15 +1226,17 @@ static void PrintLeft(char const *s, int width, char pad)
 {
 #ifndef REM_USE_WCHAR
     int len = strlen(s);
-    printf("%s", s);
-    while (len++ < width) putchar(pad);
+    int i;
+    for (i=0; i<len && i<width; i++) {
+        fputc(*(s+i), stdout);
+    }
+    while (i++ < width) putchar(pad);
 #else
     size_t len = mbstowcs(NULL, s, 0);
     int i;
     wchar_t static_buf[128];
     wchar_t *buf;
     wchar_t *ws;
-    int display_len;
 
     if (!len) {
 	for (i=0; i<width; i++) {
@@ -1226,13 +1255,16 @@ static void PrintLeft(char const *s, int width, char pad)
 	}
     }
     (void) mbstowcs(buf, s, len+1);
-    display_len = wcswidth(buf, len+1);
 
     ws = buf;
-    for (i=0; i<width;) {
+    i=0;
+    while (i<width) {
 	if (*ws) {
+            if (i + wcwidth(*ws) > width) {
+                break;
+            }
+            i += wcwidth(*ws);
             PutWideChar(*ws++, NULL);
-            i+= wcwidth(*ws);
         } else {
             break;
         }
@@ -1245,7 +1277,10 @@ static void PrintLeft(char const *s, int width, char pad)
     /* Possibly send lrm control sequence */
     send_lrm();
 
-    for (i=display_len; i<width; i++) fputc(pad, stdout);
+    while (i<width) {
+        fputc(pad, stdout);
+        i++;
+    }
     if (buf != static_buf) free(buf);
 #endif
 
@@ -1266,7 +1301,7 @@ static void PrintCentered(char const *s, int width, char *pad)
     int i;
 
     for (i=0; i<d; i++) fputs(pad, stdout);
-    for (i=0; i<width; i++) {
+    for (i=0; i<width-d; i++) {
 	if (*s) {
             if (isspace(*s)) {
                 putchar(' ');
@@ -1310,13 +1345,14 @@ static void PrintCentered(char const *s, int width, char *pad)
     if (d < 0) d = 0;
     ws = buf;
     for (i=0; i<d; i++) fputs(pad, stdout);
-    for (i=0; i<width; i++) {
+    i=0;
+    while (i+d < width) {
 	if (*ws) {
-            PutWideChar(*ws++, NULL);
-            if (wcwidth(*ws) == 0) {
-                /* Don't count this character... it's zero-width */
-                i--;
+            if (i+d + wcwidth(*ws) > width) {
+                break;
             }
+            i += wcwidth(*ws);
+            PutWideChar(*ws++, NULL);
         } else {
             break;
         }
@@ -1328,7 +1364,10 @@ static void PrintCentered(char const *s, int width, char *pad)
     /* Possibly send lrm control sequence */
     send_lrm();
 
-    for (i=d+display_len; i<width; i++) fputs(pad, stdout);
+    while (i+d<width) {
+        fputs(pad, stdout);
+        i++;
+    }
     if (buf != static_buf) free(buf);
 #endif
 }
@@ -1415,7 +1454,7 @@ static int WriteOneColLine(int col)
 	/* Find the last space char within the column. */
         width = 0;
 	while (width <= ColSpaces) {
-	    if (!*ws) {
+	    if (!*ws || *ws == '\n') {
                 wspace = ws;
                 break;
             }
@@ -1521,7 +1560,7 @@ static int WriteOneColLine(int col)
 
 	/* Find the last space char within the column. */
 	while (s - e->pos <= ColSpaces) {
-	    if (!*s) {space = s; break;}
+	    if (!*s || *s == '\n') {space = s; break;}
 	    if (isspace(*s)) space = s;
 	    s++;
 	}
@@ -1670,6 +1709,7 @@ static void GenerateCalEntries(int col)
 	    case T_Pop:     r=PopOmitContext(&p);     break;
 	    case T_Push:    r=PushOmitContext(&p);    break;
 	    case T_Preserve: r=DoPreserve(&p);        break;
+            case T_Expr: r = DoExpr(&p);              break;
 	    case T_RemType: if (tok.val == RUN_TYPE) {
 		r=DoRun(&p);
 		break;
@@ -1683,7 +1723,12 @@ static void GenerateCalEntries(int col)
 	    /* Note:  Since the parser hasn't been used yet, we don't */
 	    /* need to destroy it here. */
 
-	    default:        CreateParser(CurLine, &p);
+	    default:
+                if (!SuppressImplicitRemWarnings) {
+                    Wprint("Unrecognized command; interpreting as REM");
+                    WarnedAboutImplicit = 1;
+                }
+                CreateParser(CurLine, &p);
 		r=DoCalRem(&p, col);
 		break;
 	    }
@@ -1770,7 +1815,7 @@ static int DoCalRem(ParsePtr p, int col)
     DBufInit(&raw_buf);
 
     /* Parse the trigger date and time */
-    if ( (r=ParseRem(p, &trig, &tim, 1)) ) {
+    if ( (r=ParseRem(p, &trig, &tim)) ) {
 	FreeTrig(&trig);
 	return r;
     }
@@ -2142,7 +2187,9 @@ static int DoCalRem(ParsePtr p, int col)
 	    FreeTrig(&trig);
 	    return E_NO_MEM;
 	}
+#ifdef REM_USE_WCHAR
 	make_wchar_versions(e);
+#endif
 	DBufInit(&(e->tags));
 	DBufPuts(&(e->tags), DBufValue(&(trig.tags)));
 	if (SynthesizeTags) {

src/compare-language-mods.pl

@@ -24,27 +24,46 @@ if (!$ARGV[0]) {
 }
 
 my $lang = $ARGV[0];
-if (!exists($language_map->{$lang})) {
-        print STDERR "$lang is not a valid language.\n";
-        exit(1);
-}
-
-my $flag = $language_map->{$lang};
-print STDERR "Testing for: $lang - $flag.\n";
-my_sys("make clean > /dev/null 2>&1") && die("make clean failed");
-my_sys("make -j6 all LANGDEF=-DLANG=$flag > /dev/null 2>&1") && die("make all failed");
-my_sys("./remind -q -r ../tests/tstlang.rem 2022-03-23 11:44 > test-$lang-compiled.out 2>&1");
-
-my_sys("make clean > /dev/null 2>&1") && die("make clean failed");
-my_sys("make -j6 all > /dev/null 2>&1") && die("make all failed");
-my_sys("./remind -q -r -ii=\\\"../include/lang/$lang.rem\\\" ../tests/tstlang.rem 2022-03-23 11:44 > test-$lang-runtime.out 2>&1");
-
-my $rc = my_sys("cmp test-$lang-compiled.out test-$lang-runtime.out > /dev/null 2>&1");
-if ($rc == 0) {
-        print STDERR "Congrats!  Compiled and runtime language output matches for $lang.\n";
+my $rc = 0;
+if ($lang eq 'all') {
+        foreach my $l (sort(keys(%$language_map))) {
+                if (check($l)) {
+                        $rc = 1;
+                }
+        }
 } else {
-        print STDERR "Whoops.  Compiled and runtime language output differs for $lang.\n"
+        $rc = check($lang);
 }
+
+exit($rc);
+
+sub check
+{
+        my ($lang) = @_;
+        if (!exists($language_map->{$lang})) {
+                print STDERR "$lang is not a valid language.\n";
+                return 1;
+        }
+
+        my $flag = $language_map->{$lang};
+        print STDERR "Testing for: $lang - $flag.\n";
+        my_sys("make clean > /dev/null 2>&1") && die("make clean failed");
+        my_sys("make -j18 all LANGDEF=-DLANG=$flag > /dev/null 2>&1") && die("make all failed");
+        my_sys("./remind -q -r ../tests/tstlang.rem 2022-03-23 11:44 > test-$lang-compiled.out 2>&1");
+
+        my_sys("make clean > /dev/null 2>&1") && die("make clean failed");
+        my_sys("make -j18 all > /dev/null 2>&1") && die("make all failed");
+        my_sys("./remind -q -r -ii=\\\"../include/lang/$lang.rem\\\" ../tests/tstlang.rem 2022-03-23 11:44 > test-$lang-runtime.out 2>&1");
+
+        my $rc = my_sys("cmp test-$lang-compiled.out test-$lang-runtime.out > /dev/null 2>&1");
+        if ($rc == 0) {
+                print STDERR "Congrats!  Compiled and runtime language output matches for $lang.\n";
+        } else {
+                print STDERR "Whoops.  Compiled and runtime language output differs for $lang.\n"
+        }
+        return $rc;
+}
+
 exit(0);
 
 sub my_sys

src/config.h.in

@@ -1,45 +1,119 @@
-/* Define if utime(file, NULL) sets file's timestamp to the present.  */
-#undef HAVE_UTIME_NULL
+/* src/config.h.in.  Generated from configure.ac by autoheader.  */
 
-/* Define if you can safely include both <sys/time.h> and <time.h>.  */
-#undef TIME_WITH_SYS_TIME
-
-/* Define if your <sys/time.h> declares struct tm.  */
-#undef TM_IN_SYS_TIME
-
-/* Define if you have the <sys/types.h> header file.  */
-#undef HAVE_SYS_TYPES_H
-
-/* Define if you have the <sys/inotify.h> header file.  */
-#undef HAVE_SYS_INOTIFY_H
-
-/* Define if you have the <glob.h> header file */
-#undef HAVE_GLOB_H
-
-#undef HAVE_WCTYPE_H
-
-#undef HAVE_LOCALE_H
-
-#undef HAVE_INOTIFY_INIT1
-
-#undef HAVE_LANGINFO_H
+/* Configuration command used to build Remind */
+#undef CONFIG_CMD
 
+/* Define to 1 if you have the `glob' function. */
 #undef HAVE_GLOB
 
-#undef HAVE_SETENV
+/* Define to 1 if you have the <glob.h> header file. */
+#undef HAVE_GLOB_H
 
+/* Define to 1 if you have the `initgroups' function. */
 #undef HAVE_INITGROUPS
 
-#undef HAVE_UNSETENV
+/* Define to 1 if you have the `inotify_init1' function. */
+#undef HAVE_INOTIFY_INIT1
 
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the <langinfo.h> header file. */
+#undef HAVE_LANGINFO_H
+
+/* Define to 1 if you have the `m' library (-lm). */
+#undef HAVE_LIBM
+
+/* Define to 1 if you have the <locale.h> header file. */
+#undef HAVE_LOCALE_H
+
+/* Define to 1 if you have the `mbstowcs' function. */
 #undef HAVE_MBSTOWCS
 
+/* Define to 1 if you have the `setenv' function. */
+#undef HAVE_SETENV
+
+/* Define to 1 if you have the `setlocale' function. */
 #undef HAVE_SETLOCALE
 
-/* The number of bytes in a unsigned int.  */
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdio.h> header file. */
+#undef HAVE_STDIO_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the `strcasecmp' function. */
+#undef HAVE_STRCASECMP
+
+/* Define to 1 if you have the `strdup' function. */
+#undef HAVE_STRDUP
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the `strncasecmp' function. */
+#undef HAVE_STRNCASECMP
+
+/* Define to 1 if you have the <sys/inotify.h> header file. */
+#undef HAVE_SYS_INOTIFY_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#undef HAVE_SYS_TIME_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to 1 if you have the `unsetenv' function. */
+#undef HAVE_UNSETENV
+
+/* Define to 1 if you have the <wctype.h> header file. */
+#undef HAVE_WCTYPE_H
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* The size of `time_t', as computed by sizeof. */
+#undef SIZEOF_TIME_T
+
+/* The size of `unsigned int', as computed by sizeof. */
 #undef SIZEOF_UNSIGNED_INT
 
-/* The number of bytes in a unsigned long.  */
+/* The size of `unsigned long', as computed by sizeof. */
 #undef SIZEOF_UNSIGNED_LONG
 
-#include "custom.h"
+/* Define to 1 if all of the C90 standard headers exist (not just the ones
+   required in a freestanding environment). This macro is provided for
+   backward compatibility; new code need not use it. */
+#undef STDC_HEADERS
+
+/* Define to 1 if your <sys/time.h> declares `struct tm'. */
+#undef TM_IN_SYS_TIME
+
+#include <custom.h>

src/custom.h

@@ -20,7 +20,7 @@
 /* western hemisphere.                                                 */
 /*                                                                     */
 /* The default values are initially set to the city hall in Ottawa,    */
-/* Ontario, Canada.    */
+/* Ontario, Canada.                                                    */
 /*---------------------------------------------------------------------*/
 #define DEFAULT_LATITUDE 45.420556
 #define DEFAULT_LONGITUDE -75.689722
@@ -68,12 +68,6 @@
 /**********************************************************************/
 /**********************************************************************/
 
-/*---------------------------------------------------------------------*/
-/* WANT_SHELL_ESCAPING:  Define this if you want special shell         */
-/* characters to be escaped with a backslash for the -k option.        */
-/*---------------------------------------------------------------------*/
-#define WANT_SHELL_ESCAPING 1
-
 /*---------------------------------------------------------------------*/
 /* BASE: The base year for date calculation.  NOTE!  January 1 of the  */
 /*       base year MUST be a Monday, else Remind will not work!        */
@@ -109,16 +103,6 @@
 /*---------------------------------------------------------------------*/
 #define MAX_STR_LEN 65535
 
-/*---------------------------------------------------------------------*/
-/* OP_STACK_SIZE: The size of the operator stack for expr. parsing     */
-/*---------------------------------------------------------------------*/
-#define OP_STACK_SIZE 100
-
-/*---------------------------------------------------------------------*/
-/* VAL_STACK_SIZE: The size of the operand stack for expr. parsing     */
-/*---------------------------------------------------------------------*/
-#define VAL_STACK_SIZE 1000
-
 /*---------------------------------------------------------------------*/
 /* INCLUDE_NEST: How many nested INCLUDES do we handle?                */
 /*---------------------------------------------------------------------*/
@@ -166,6 +150,10 @@
 
 #define PASSTHRU_LEN 32
 
+#define MAX_RECURSION_LEVEL 1000
+
+#define MAX_FUNC_ARGS 64
+
 #define PSBEGIN "# rem2ps begin"
 #define PSEND   "# rem2ps end"
 

src/custom.h.in

@@ -20,7 +20,7 @@
 /* western hemisphere.                                                 */
 /*                                                                     */
 /* The default values are initially set to the city hall in Ottawa,    */
-/* Ontario, Canada.    */
+/* Ontario, Canada.                                                    */
 /*---------------------------------------------------------------------*/
 #define DEFAULT_LATITUDE 45.420556
 #define DEFAULT_LONGITUDE -75.689722
@@ -68,12 +68,6 @@
 /**********************************************************************/
 /**********************************************************************/
 
-/*---------------------------------------------------------------------*/
-/* WANT_SHELL_ESCAPING:  Define this if you want special shell         */
-/* characters to be escaped with a backslash for the -k option.        */
-/*---------------------------------------------------------------------*/
-#define WANT_SHELL_ESCAPING 1
-
 /*---------------------------------------------------------------------*/
 /* BASE: The base year for date calculation.  NOTE!  January 1 of the  */
 /*       base year MUST be a Monday, else Remind will not work!        */
@@ -109,16 +103,6 @@
 /*---------------------------------------------------------------------*/
 #define MAX_STR_LEN 65535
 
-/*---------------------------------------------------------------------*/
-/* OP_STACK_SIZE: The size of the operator stack for expr. parsing     */
-/*---------------------------------------------------------------------*/
-#define OP_STACK_SIZE 100
-
-/*---------------------------------------------------------------------*/
-/* VAL_STACK_SIZE: The size of the operand stack for expr. parsing     */
-/*---------------------------------------------------------------------*/
-#define VAL_STACK_SIZE 1000
-
 /*---------------------------------------------------------------------*/
 /* INCLUDE_NEST: How many nested INCLUDES do we handle?                */
 /*---------------------------------------------------------------------*/
@@ -166,6 +150,10 @@
 
 #define PASSTHRU_LEN 32
 
+#define MAX_RECURSION_LEVEL 1000
+
+#define MAX_FUNC_ARGS 64
+
 #define PSBEGIN "# rem2ps begin"
 #define PSEND   "# rem2ps end"
 

src/dorem.c

@@ -23,9 +23,8 @@
 #include "globals.h"
 #include "err.h"
 #include "protos.h"
-#include "expr.h"
 
-static int ParseTimeTrig (ParsePtr s, TimeTrig *tim, int save_in_globals);
+static int ParseTimeTrig (ParsePtr s, TimeTrig *tim);
 static int ParseLocalOmit (ParsePtr s, Trigger *t);
 static int ParseScanFrom (ParsePtr s, Trigger *t, int type);
 static int ParsePriority (ParsePtr s, Trigger *t);
@@ -33,6 +32,152 @@ static int ParseUntil (ParsePtr s, Trigger *t, int type);
 static int ShouldTriggerBasedOnWarn (Trigger *t, int dse, int *err);
 static int ComputeTrigDuration(TimeTrig *t);
 
+static int
+ensure_expr_references_first_local_arg(expr_node *node)
+{
+    expr_node *other;
+
+    if (!node) {
+        return 0;
+    }
+    if (node->type == N_LOCAL_VAR && node->u.arg == 0) {
+        return 1;
+    }
+    if (ensure_expr_references_first_local_arg(node->child)) {
+        return 1;
+    }
+    other = node->sibling;
+    while (other) {
+        if (ensure_expr_references_first_local_arg(other)) {
+            return 1;
+        }
+        other = other->sibling;
+    }
+    return 0;
+}
+
+static void
+check_trigger_function(char const *fname, char const *type)
+{
+    UserFunc *f;
+    if (!*fname) {
+        return;
+    }
+    f = FindUserFunc(fname);
+    if (!f) {
+        if (strcmp(type, "WARN")) {
+            /* Undefined WARN functions are diagnosed elsewhere... */
+            Wprint("Undefined %s function: `%s'", type, fname);
+        }
+        return;
+    }
+    if (f->nargs != 1) {
+        Wprint("%s function `%s' defined at %s:%d should take 1 argument but actually takes %d", type, fname, f->filename, f->lineno, f->nargs);
+        return;
+    }
+    if (ensure_expr_references_first_local_arg(f->node)) {
+        return;
+    }
+    Wprint("%s function `%s' defined at %s:%d does not use its argument", type, fname, f->filename, f->lineno);
+}
+
+static void
+ensure_satnode_mentions_trigdate_aux(expr_node *node, int *mentioned)
+{
+    char const *name;
+    expr_node *other;
+    UserFunc *f;
+
+    if (!node) {
+        return;
+    }
+    if (*mentioned) {
+        return;
+    }
+
+    if (node->type == N_BUILTIN_FUNC) {
+        name = node->u.builtin_func->name;
+        if (!strcmp(name, "trigdate") ||
+            !strcmp(name, "trigdatetime")) {
+            *mentioned = 1;
+            return;
+        }
+    } else if (node->type == N_SHORT_SYSVAR || node->type == N_SYSVAR) {
+        if (node->type == N_SHORT_SYSVAR) {
+            name = node->u.name;
+        } else {
+            name = node->u.value.v.str;
+        }
+        if (!StrCmpi(name, "T") ||
+            !StrCmpi(name, "Td") ||
+            !StrCmpi(name, "Tm") ||
+            !StrCmpi(name, "Tw") ||
+            !StrCmpi(name, "Ty")) {
+            *mentioned = 1;
+            return;
+        }
+    } else if (node->type == N_SHORT_USER_FUNC || node->type == N_USER_FUNC) {
+        if (node->type == N_SHORT_USER_FUNC) {
+            name = node->u.name;
+        } else {
+            name = node->u.value.v.str;
+        }
+        f = FindUserFunc(name);
+        if (f && !f->recurse_flag) {
+            f->recurse_flag = 1;
+            ensure_satnode_mentions_trigdate_aux(f->node, mentioned);
+            f->recurse_flag = 0;
+            if (*mentioned) {
+                return;
+            }
+        }
+    }
+    ensure_satnode_mentions_trigdate_aux(node->child, mentioned);
+    if (*mentioned) {
+        return;
+    }
+    other = node->sibling;
+    while (other) {
+        ensure_satnode_mentions_trigdate_aux(other, mentioned);
+        if (*mentioned) {
+            return;
+        }
+        other = other->sibling;
+    }
+}
+
+static void ensure_satnode_mentions_trigdate(expr_node *node)
+{
+    int mentioned = 0;
+    char const *str;
+    if (node->type == N_CONSTANT || node->type == N_SHORT_STR) {
+        if (node->type == N_CONSTANT) {
+            if (node->u.value.type == INT_TYPE) {
+                if (node->u.value.v.val == 0) {
+                    Wprint("SATISFY: constant 0 will never be true");
+                }
+                return;
+            }
+            if (node->u.value.type != STR_TYPE) {
+                return;
+            }
+            str = node->u.value.v.str;
+        } else {
+            str = node->u.name;
+        }
+        if (!*str) {
+            Wprint("SATISFY: constant \"\" will never be true");
+        }
+        return;
+    }
+
+    ensure_satnode_mentions_trigdate_aux(node, &mentioned);
+    if (!mentioned) {
+        Wprint("SATISFY: expression has no reference to trigdate() or $T...");
+    }
+}
+
+
 static int
 ComputeTrigDuration(TimeTrig *t)
 {
@@ -63,7 +208,7 @@ int DoRem(ParsePtr p)
     DBufInit(&buf);
 
     /* Parse the trigger date and time */
-    if ( (r=ParseRem(p, &trig, &tim, 1)) ) {
+    if ( (r=ParseRem(p, &trig, &tim)) != OK ) {
 	FreeTrig(&trig);
 	return r;
     }
@@ -163,6 +308,7 @@ int DoRem(ParsePtr p)
 	    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", "#!P: or a relative SCANFROM clause");
 		    PurgeEchoLine("%s\n", CurLine);
 		} else {
 		    PurgeEchoLine("%s\n", "#!P: Next line has expired, but contains expression...  please verify");
@@ -182,7 +328,7 @@ int DoRem(ParsePtr p)
     if (dse == DSEToday &&
 	!(!IgnoreOnce &&
 	  trig.once != NO_ONCE &&
-	  FileAccessDate == DSEToday))
+	  GetOnceDate() == DSEToday))
 	QueueReminder(p, &trig, &tim, trig.sched);
     /* If we're in daemon mode, do nothing over here */
     if (Daemon) {
@@ -220,7 +366,7 @@ int DoRem(ParsePtr p)
 /*  trigger structure.                                         */
 /*                                                             */
 /***************************************************************/
-int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
+int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim)
 {
     register int r;
     DynamicBuffer buf;
@@ -262,10 +408,6 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
     trig->need_wkday = 0;
     trig->adj_for_last = 0;
 
-    if (save_in_globals) {
-	LastTriggerTime = NO_TIME;
-    }
-
     int parsing = 1;
     while(parsing) {
 	/* Read space-delimited string */
@@ -295,10 +437,17 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
             break;
 
 	case T_Date:
-	    DBufFree(&buf);
-	    if (trig->d != NO_DAY) return E_DAY_TWICE;
-	    if (trig->m != NO_MON) return E_MON_TWICE;
-	    if (trig->y != NO_YR)  return E_YR_TWICE;
+            DBufFree(&buf);
+	    if (trig->d != NO_DAY) {
+                return E_DAY_TWICE;
+            }
+	    if (trig->m != NO_MON) {
+                return E_MON_TWICE;
+            }
+	    if (trig->y != NO_YR)  {
+                return E_YR_TWICE;
+            }
+
 	    FromDSE(tok.val, &y, &m, &d);
 	    trig->y = y;
 	    trig->m = m;
@@ -315,10 +464,6 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
 	    trig->m = m;
 	    trig->d = d;
 	    tim->ttime = (tok.val % MINUTES_PER_DAY);
-	    if (save_in_globals) {
-		LastTriggerTime = tim->ttime;
-		SaveLastTimeTrig(tim);
-	    }
 	    break;
 
 	case T_WkDay:
@@ -355,14 +500,14 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
             DBufFree(&buf);
             if (tim->ttime != NO_TIME) return E_TIME_TWICE;
             tim->ttime = tok.val;
-            r = ParseTimeTrig(s, tim, save_in_globals);
+            r = ParseTimeTrig(s, tim);
             if (r) return r;
 	    trig->duration_days = ComputeTrigDuration(tim);
 	    break;
 
 	case T_At:
 	    DBufFree(&buf);
-	    r=ParseTimeTrig(s, tim, save_in_globals);
+	    r=ParseTimeTrig(s, tim);
 	    if (r) return r;
 	    trig->duration_days = ComputeTrigDuration(tim);
 	    break;
@@ -404,6 +549,12 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
 	    if (r) return r;
 	    break;
 
+        case T_Number:
+            DBufFree(&buf);
+            Eprint("`%d' is not recognized as a year (%d-%d) or a day number (1-31)",
+                   tok.val, BASE, BASE+YR_RANGE);
+            return E_PARSE_ERR;
+
 	case T_Year:
 	    DBufFree(&buf);
 	    if (trig->y != NO_YR) return E_YR_TWICE;
@@ -481,10 +632,10 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
 	    r=ParseToken(s, &buf);
 	    if (r) return r;
 	    StrnCpy(trig->omitfunc, DBufValue(&buf), VAR_NAME_LEN);
-
+            strtolower(trig->omitfunc);
 	    /* An OMITFUNC counts as a nonconst_expr! */
-	    s->expr_happened = 1;
-	    s->nonconst_expr = 1;
+            s->expr_happened = 1;
+            s->nonconst_expr = 1;
 	    DBufFree(&buf);
 	    break;
 
@@ -492,6 +643,7 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
 	    r=ParseToken(s, &buf);
 	    if(r) return r;
 	    StrnCpy(trig->warn, DBufValue(&buf), VAR_NAME_LEN);
+            strtolower(trig->warn);
 	    DBufFree(&buf);
 	    break;
 
@@ -522,9 +674,6 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
 		} else {
 		    tim->duration = NO_TIME;
 		}
-		if (save_in_globals) {
-		    SaveLastTimeTrig(tim);
-		}
 		trig->duration_days = ComputeTrigDuration(tim);
 		break;
 	    default:
@@ -536,6 +685,7 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
 	    r=ParseToken(s, &buf);
 	    if(r) return r;
 	    StrnCpy(trig->sched, DBufValue(&buf), VAR_NAME_LEN);
+            strtolower(trig->sched);
 	    DBufFree(&buf);
 	    break;
 
@@ -545,10 +695,19 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
 	    break;
 
 	default:
+            if (tok.type == T_Illegal && tok.val < 0) {
+                Eprint("%s: `%s'", ErrMsg[-tok.val], DBufValue(&buf));
+                DBufFree(&buf);
+                return -tok.val;
+            }
 	    PushToken(DBufValue(&buf), s);
 	    DBufFree(&buf);
 	    trig->typ = MSG_TYPE;
 	    if (s->isnested) return E_CANT_NEST_RTYPE;
+            if (!WarnedAboutImplicit && !SuppressImplicitRemWarnings) {
+                Wprint("Missing REM type; assuming MSG");
+                WarnedAboutImplicit = 1;
+            }
             parsing = 0;
             break;
 	}
@@ -600,6 +759,11 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
         trig->scanfrom = DSEToday;
     }
 
+    /* Check that any SCHED / WARN / OMITFUNC functions refer to
+       their arguments */
+    check_trigger_function(trig->sched, "SCHED");
+    check_trigger_function(trig->warn, "WARN");
+    check_trigger_function(trig->omitfunc, "OMITFUNC");
     return OK;
 }
 
@@ -608,7 +772,7 @@ int ParseRem(ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals)
 /*  ParseTimeTrig - parse the AT part of a timed reminder      */
 /*                                                             */
 /***************************************************************/
-static int ParseTimeTrig(ParsePtr s, TimeTrig *tim, int save_in_globals)
+static int ParseTimeTrig(ParsePtr s, TimeTrig *tim)
 {
     Token tok;
     int r;
@@ -641,13 +805,13 @@ static int ParseTimeTrig(ParsePtr s, TimeTrig *tim, int save_in_globals)
 	    break;
 
 	default:
+            if (tok.type == T_Illegal && tok.val < 0) {
+                Eprint("%s: `%s'", ErrMsg[-tok.val], DBufValue(&buf));
+                DBufFree(&buf);
+                return -tok.val;
+            }
 	    if (tim->ttime == NO_TIME) return E_EXPECT_TIME;
 
-	    /* Save trigger time in global variable */
-	    if (save_in_globals) {
-		LastTriggerTime = tim->ttime;
-		SaveLastTimeTrig(tim);
-	    }
 	    PushToken(DBufValue(&buf), s);
 	    DBufFree(&buf);
 	    return OK;
@@ -679,6 +843,9 @@ static int ParseLocalOmit(ParsePtr s, Trigger *t)
 	    break;
 
 	default:
+            if (t->localomit == NO_WD) {
+                return E_EXPECTING_WEEKDAY;
+            }
 	    PushToken(DBufValue(&buf), s);
 	    DBufFree(&buf);
 	    return OK;
@@ -760,6 +927,11 @@ static int ParseUntil(ParsePtr s, Trigger *t, int type)
 	    break;
 
 	default:
+            if (tok.type == T_Illegal && tok.val < 0) {
+                Eprint("%s: `%s'", ErrMsg[-tok.val], DBufValue(&buf));
+                DBufFree(&buf);
+                return -tok.val;
+            }
 	    if (y == NO_YR || m == NO_MON || d == NO_DAY) {
 		Eprint("%s: %s", which, ErrMsg[E_INCOMPLETE]);
 		DBufFree(&buf);
@@ -873,9 +1045,17 @@ static int ParseScanFrom(ParsePtr s, Trigger *t, int type)
 		tok.val = -tok.val;
 	    }
 	    FromDSE(DSEToday - tok.val, &y, &m, &d);
+            /* Don't purge reminders with a relative scanfrom */
+            s->expr_happened = 1;
+            s->nonconst_expr = 1;
 	    break;
 
 	default:
+            if (tok.type == T_Illegal && tok.val < 0) {
+                Eprint("%s: `%s'", ErrMsg[-tok.val], DBufValue(&buf));
+                DBufFree(&buf);
+                return -tok.val;
+            }
 	    if (y == NO_YR || m == NO_MON || d == NO_DAY) {
 		Eprint("%s: %s", word, ErrMsg[E_INCOMPLETE]);
 		DBufFree(&buf);
@@ -1199,7 +1379,7 @@ int ShouldTriggerReminder(Trigger *t, TimeTrig *tim, int dse, int *err)
     *err = 0;
 
     /* Handle the ONCE modifier in the reminder. */
-    if (!IgnoreOnce && t->once !=NO_ONCE && FileAccessDate == DSEToday)
+    if (!IgnoreOnce && t->once !=NO_ONCE && GetOnceDate() == DSEToday)
 	return 0;
 
     if (dse < DSEToday) return 0;
@@ -1281,20 +1461,32 @@ int DoSatRemind(Trigger *trig, TimeTrig *tt, ParsePtr p)
 {
     int iter, dse, r, start;
     Value v;
-    char const *s;
-    char const *t;
+    expr_node *sat_node;
+    int nonconst = 0;
+
+    sat_node = ParseExpr(p, &r);
+    if (r != OK) {
+        return r;
+    }
+    if (!sat_node) {
+        return E_SWERR;
+    }
+
+    /* Diagnose if SAT_NODE does not reference trigdate */
+    ensure_satnode_mentions_trigdate(sat_node);
 
-    t = p->pos;
     iter = 0;
     start = trig->scanfrom;
     while (iter++ < MaxSatIter) {
 	dse = ComputeTriggerNoAdjustDuration(start, trig, tt, &r, 1, 0);
 	if (r) {
+            free_expr_tree(sat_node);
 	    if (r == E_CANT_TRIG) return OK; else return r;
 	}
 	if (dse != start && trig->duration_days) {
 	    dse = ComputeTriggerNoAdjustDuration(start, trig, tt, &r, 1, trig->duration_days);
 	    if (r) {
+                free_expr_tree(sat_node);
 		if (r == E_CANT_TRIG) return OK; else return r;
 	    }
 	} else if (dse == start) {
@@ -1307,13 +1499,18 @@ int DoSatRemind(Trigger *trig, TimeTrig *tt, ParsePtr p)
 	    SaveAllTriggerInfo(trig, tt, dse, tt->ttime, 1);
 	}
 	if (dse == -1) {
+            free_expr_tree(sat_node);
 	    return E_EXPIRED;
 	}
-	s = p->pos;
-	r = EvaluateExpr(p, &v);
-	t = p->pos;
-	if (r) return r;
-	if (v.type != INT_TYPE && v.type != STR_TYPE) return E_BAD_TYPE;
+        r = evaluate_expression(sat_node, NULL, &v, &nonconst);
+	if (r) {
+            free_expr_tree(sat_node);
+            return r;
+        }
+	if (v.type != INT_TYPE && v.type != STR_TYPE) {
+            free_expr_tree(sat_node);
+            return E_BAD_TYPE;
+        }
 	if ((v.type == INT_TYPE && v.v.val) ||
 	    (v.type == STR_TYPE && *v.v.str)) {
 	    AdjustTriggerForDuration(trig->scanfrom, dse, trig, tt, 1);
@@ -1338,17 +1535,17 @@ int DoSatRemind(Trigger *trig, TimeTrig *tt, ParsePtr p)
 		}
 		fprintf(ErrFp, "\n");
 	    }
+            free_expr_tree(sat_node);
 	    return OK;
 	}
-	p->pos = s;
 	if (dse+trig->duration_days < start) {
 	    start++;
 	} else {
 	    start = dse+trig->duration_days+1;
 	}
     }
-    p->pos = t;
     LastTrigValid = 0;
+    free_expr_tree(sat_node);
     return E_CANT_TRIG;
 }
 

src/dosubst.c

@@ -12,15 +12,13 @@
 /***************************************************************/
 
 #include "config.h"
-#include "expr.h"
-#define L_IN_DOSUBST
+#include "types.h"
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
 
 #include <stdlib.h>
 
-#include "types.h"
 #include "globals.h"
 #include "err.h"
 #include "protos.h"
@@ -33,6 +31,19 @@
 
 #define SHIP_OUT(s) if(DBufPuts(dbuf, s) != OK) return E_NO_MEM
 
+static int
+check_subst_args(UserFunc *f, int n)
+{
+    if (!f) {
+        return 0;
+    }
+    if (f->nargs == n) {
+        return 1;
+    }
+    Wprint("Function `%s' defined at %s:%d should take %d argument%s, but actually takes %d",
+           f->name, f->filename, f->lineno, n, (n == 1 ? "" : "s"), f->nargs);
+    return 0;
+}
 /***************************************************************/
 /*                                                             */
 /*  DoSubst                                                    */
@@ -50,7 +61,7 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
     int err, done;
     int c;
     int d, m, y;
-    int tim = tt->ttime;
+    int tim = NO_TIME;
     int h, min, hh, ch, cmin, chh;
     int i;
     char const *pm, *cpm;
@@ -69,9 +80,13 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
     int altmode;
     int r;
     Value v;
+    UserFunc *func;
 
     FromDSE(dse, &y, &m, &d);
 
+    if (tt) {
+        tim = tt->ttime;
+    }
     if (tim == NO_TIME) tim = curtime;
     tdiff = tim - curtime;
     adiff = ABS(tdiff);
@@ -99,7 +114,8 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
     L_AMPM_OVERRIDE (pm, h)
 #else
     r = -1;
-    if (UserFuncExists("subst_ampm") == 1) {
+    func = FindUserFunc("subst_ampm");
+    if (func && check_subst_args(func, 1)) {
         snprintf(s, sizeof(s), "subst_ampm(%d)", h);
         expr = (char const *) s;
         r = EvalExpr(&expr, &v, NULL);
@@ -128,7 +144,8 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
     L_AMPM_OVERRIDE (cpm, ch)
 #else
     r = -1;
-    if (UserFuncExists("subst_ampm") == 1) {
+    func = FindUserFunc("subst_ampm");
+    if (func && check_subst_args(func, 1)) {
         snprintf(s, sizeof(s), "subst_ampm(%d)", ch);
         expr = (char const *) s;
         r = EvalExpr(&expr, &v, NULL);
@@ -139,6 +156,7 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
             } else {
                 r = -1;
             }
+            DestroyValue(v);
         } else {
             Eprint("%s", ErrMsg[r]);
         }
@@ -152,7 +170,8 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
 #ifdef L_ORDINAL_OVERRIDE
     L_ORDINAL_OVERRIDE;
 #else
-    if (UserFuncExists("subst_ordinal") == 1) {
+    func = FindUserFunc("subst_ordinal");
+    if (func && check_subst_args(func, 1)) {
         snprintf(s, sizeof(s), "subst_ordinal(%d)", d);
         expr = (char const *) s;
         r = EvalExpr(&expr, &v, NULL);
@@ -163,6 +182,7 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
             } else {
                 r = -1;
             }
+            DestroyValue(v);
         } else {
             Eprint("%s", ErrMsg[r]);
         }
@@ -239,7 +259,7 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
                     break;
                 }
                 if (i < 64) {
-                    *ss++ = c;
+                    *ss++ = tolower(c);
                     *ss = 0;
                     i++;
                 }
@@ -247,7 +267,13 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
             if (!c) {
                 Wprint("Warning: Unterminated %%{...} substitution sequence");
             }
-            if (UserFuncExists(s) != 3) {
+            func = FindUserFunc(s);
+            if (!func) {
+                Wprint("No substition function `%s' defined", s);
+                continue;
+            }
+
+            if (!check_subst_args(func, 3)) {
                 continue;
             }
             snprintf(ss, sizeof(s) - (ss-s), "(%d,'%04d-%02d-%02d',%02d:%02d)",
@@ -266,10 +292,11 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
             continue;
         }
 	done = 0;
-        snprintf(uf, sizeof(uf), "subst_%c", c);
-        if (UserFuncExists(uf) == 3) {
+        snprintf(uf, sizeof(uf), "subst_%c", tolower(c));
+        func = FindUserFunc(uf);
+        if (func && check_subst_args(func, 3)) {
             snprintf(s, sizeof(s), "subst_%c(%d,'%04d-%02d-%02d',%02d:%02d)",
-                     c, altmode ? 1 : 0, y, m+1, d, h, min);
+                     tolower(c), altmode ? 1 : 0, y, m+1, d, h, min);
             expr = (char const *) s;
             r = EvalExpr(&expr, &v, NULL);
             if (r == OK) {
@@ -341,10 +368,11 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
 
 
         if (!done) {
-            snprintf(uf, sizeof(uf), "subst_%cx", c);
-            if (UserFuncExists(uf) == 3) {
+            snprintf(uf, sizeof(uf), "subst_%cx", tolower(c));
+            func = FindUserFunc(uf);
+            if (func && check_subst_args(func, 3)) {
                 snprintf(s, sizeof(s), "subst_%cx(%d,'%04d-%02d-%02d',%02d:%02d)",
-                         c, altmode ? 1 : 0, y, m+1, d, h, min);
+                         tolower(c), altmode ? 1 : 0, y, m+1, d, h, min);
                 expr = (char const *) s;
                 r = EvalExpr(&expr, &v, NULL);
                 if (r == OK) {
@@ -794,7 +822,7 @@ int DoSubst(ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse,
                 break;
 
             case '_':
-                if (PsCal == PSCAL_LEVEL2 || PsCal == PSCAL_LEVEL3 || (mode != CAL_MODE && mode != ADVANCE_MODE && !(MsgCommand && *MsgCommand))) {
+                if (PsCal == PSCAL_LEVEL2 || PsCal == PSCAL_LEVEL3 || DoCalendar || (mode != CAL_MODE && mode != ADVANCE_MODE && !(MsgCommand && *MsgCommand))) {
                     snprintf(s, sizeof(s), "%s", NL);
                 } else {
                     snprintf(s, sizeof(s), " ");

src/dynbuf.c

@@ -124,7 +124,9 @@ int DBufPuts(DynamicBuffer *dbuf, char const *str)
 **********************************************************************/
 void DBufFree(DynamicBuffer *dbuf)
 {
-    if (dbuf->buffer != dbuf->staticBuf) free(dbuf->buffer);
+    if (dbuf->buffer != NULL && dbuf->buffer != dbuf->staticBuf) {
+        free(dbuf->buffer);
+    }
     DBufInit(dbuf);
 }
 
@@ -150,7 +152,6 @@ int DBufGets(DynamicBuffer *dbuf, FILE *fp)
     /* Try reading the first few bytes right into the buffer --
        we can usually save some unnecessary copying */
 
-    *(dbuf->buffer) = 0;
     if (fgets(dbuf->buffer, dbuf->allocatedLen, fp) == NULL) {
 	return OK;
     }

src/dynbuf.h

@@ -15,7 +15,7 @@
 
 #include <stdio.h>  /* For FILE */
 
-#define DBUF_STATIC_SIZE 128
+#define DBUF_STATIC_SIZE 32
 typedef struct {
     char *buffer;
     size_t len;

src/err.h

@@ -121,6 +121,11 @@
 #define E_STRING_TOO_LONG   101
 #define E_TIME_TWICE        102
 #define E_DURATION_NO_AT    103
+#define E_EXPECTING_WEEKDAY 104
+#define E_REPEATED_ARG      105
+#define E_EXPR_DISABLED     106
+#define E_TIME_EXCEEDED     107
+
 #ifdef MK_GLOBALS
 #undef EXTERN
 #define EXTERN
@@ -138,110 +143,114 @@ EXTERN char *ErrMsg[]
 
 #ifdef MK_GLOBALS
 = {
-    "Ok",
-    "Missing ']'",
-    "Missing quote",
-    "Expression too complex - too many operators",
-    "Expression too complex - too many operands",
-    "Missing ')'",
-    "Undefined function",
-    "Illegal character",
-    "Expecting binary operator",
-    "Out of memory",
-    "Ill-formed number",
-    "Op stack underflow - internal error",
-    "Va stack underflow - internal error",
-    "Can't coerce",
-    "Type mismatch",
-    "Date overflow",
-    "Stack error - internal error",
-    "Division by zero",
-    "Undefined variable",
-    "Unexpected end of line",
-    "Unexpected end of file",
-    "I/O error",
-    "Line too long",
-    "Internal error",
-    "Bad date specification",
-    "Not enough arguments",
-    "Too many arguments",
-    "Ill-formed time",
-    "Number too high",
-    "Number too low",
-    "Can't open file",
-    "INCLUDE nested too deeply (max. " STR(INCLUDE_NEST) ")",
-    "Parse error",
-    "Can't compute trigger",
-    "Too many nested IFs",
-    "ELSE with no matching IF",
-    "ENDIF with no matching IF",
-    "Can't OMIT every weekday",
-    "Extraneous token(s) on line",
-    "POP-OMIT-CONTEXT without matching PUSH-OMIT-CONTEXT",
-    "RUN disabled",
-    "Domain error",
-    "Invalid identifier",
-    "Recursive function call detected",
-    "",
-    "Cannot modify system variable",
-    "C library function can't represent date/time",
-    "Attempt to redefine built-in function",
-    "Can't nest function definition in expression",
-    "Must fully specify date to use repeat factor",
-    "Year specified twice",
-    "Month specified twice",
-    "Day specified twice",
-    "Unknown token",
-    "Must specify month in OMIT command",
-    "Too many partial OMITs (max. " STR(MAX_PARTIAL_OMITS) ")",
-    "Too many full OMITs (max. " STR(MAX_FULL_OMITS) ")",
-    "Warning: PUSH-OMIT-CONTEXT without matching POP-OMIT-CONTEXT",
-    "Error reading",
-    "Expecting end-of-line",
-    "Invalid Hebrew date",
-    "IIF needs odd number of arguments",
-    "Warning: Missing ENDIF",
-    "Expecting comma",
-    "Weekday specified twice",
-    "Only use one of BEFORE, AFTER or SKIP",
-    "Can't nest MSG, MSF, RUN, etc. in expression",
-    "Repeat value specified twice",
-    "Delta value specified twice",
-    "Back value specified twice",
-    "ONCE keyword used twice. (Hah.)",
-    "Expecting time after AT",
-    "THROUGH/UNTIL keyword used twice",
-    "Incomplete date specification",
-    "FROM/SCANFROM keyword used twice",
-    "Variable",
-    "Value",
-    "*UNDEFINED*",
-    "Entering UserFN",
-    "Leaving UserFN",
-    "Expired",
-    "fork() failed - can't do queued reminders",
-    "Can't access file",
-    "Illegal system date: Year is less than %d\n",
-    "Unknown debug flag '%c'\n",
-    "Unknown option '%c'\n",
-    "Unknown user '%s'\n",
-    "Could not change gid to %d\n",
-    "Could not change uid to %d\n",
-    "Out of memory for environment\n",
-    "Missing '=' sign",
-    "Missing variable name",
-    "Missing expression",
-    "Can't reset access date of %s\n",
-    "Remind: '-i' option: %s\n",
-    "No reminders.",
-    "%d reminder(s) queued for later today.\n",
-    "Expecting number",
-    "Bad function in WARN clause",
-    "Can't convert between time zones",
-    "No files matching *.rem",
-    "String too long",
-    "Time specified twice",
-    "Cannot specify DURATION without specifying AT"
+/* OK */                  "Ok",
+/* E_MISS_END */          "Missing ']'",
+/* E_MISS_QUOTE */        "Missing quote",
+/* E_OP_STK_OVER */       "Expression too complex",
+/* E_VA_STK_OVER */       "Expression too complex - too many operands",
+/* E_MISS_RIGHT_PAREN */  "Missing ')'",
+/* E_UNDEF_FUNC */        "Undefined function",
+/* E_ILLEGAL_CHAR */      "Illegal character",
+/* E_EXPECTING_BINOP */   "Expecting binary operator",
+/* E_NO_MEM */            "Out of memory",
+/* E_BAD_NUMBER */        "Ill-formed number",
+/* E_OP_STK_UNDER */      "Op stack underflow - internal error",
+/* E_VA_STK_UNDER */      "Va stack underflow - internal error",
+/* E_CANT_COERCE */       "Can't coerce",
+/* E_BAD_TYPE */          "Type mismatch",
+/* E_DATE_OVER */         "Date overflow",
+/* E_STACK_ERR */         "Stack error - internal error",
+/* E_DIV_ZERO */          "Division by zero",
+/* E_NOSUCH_VAR */        "Undefined variable",
+/* E_EOLN */              "Unexpected end of line",
+/* E_EOF */               "Unexpected end of file",
+/* E_IO_ERR */            "I/O error",
+/* E_LINE_2_LONG */       "Line too long",
+/* E_SWERR */             "Internal error",
+/* E_BAD_DATE */          "Bad date specification",
+/* E_2FEW_ARGS */         "Not enough arguments",
+/* E_2MANY_ARGS */        "Too many arguments",
+/* E_BAD_TIME */          "Ill-formed time",
+/* E_2HIGH */             "Number too high",
+/* E_2LOW */              "Number too low",
+/* E_CANT_OPEN */         "Can't open file",
+/* E_NESTED_INCLUDE */    "INCLUDE nested too deeply (max. " STR(INCLUDE_NEST) ")",
+/* E_PARSE_ERR */         "Parse error",
+/* E_CANT_TRIG */         "Can't compute trigger",
+/* E_NESTED_IF */         "Too many nested IFs",
+/* E_ELSE_NO_IF */        "ELSE with no matching IF",
+/* E_ENDIF_NO_IF */       "ENDIF with no matching IF",
+/* E_2MANY_LOCALOMIT */   "Can't OMIT every weekday",
+/* E_EXTRANEOUS_TOKEN */  "Extraneous token(s) on line",
+/* E_POP_NO_PUSH */       "POP-OMIT-CONTEXT without matching PUSH-OMIT-CONTEXT",
+/* E_RUN_DISABLED */      "RUN disabled",
+/* E_DOMAIN_ERR */        "Domain error",
+/* E_BAD_ID */            "Invalid identifier",
+/* E_RECURSIVE */         "Too many recursive function calls",
+/* E_PARSE_AS_REM */      "",
+/* E_CANT_MODIFY */       "Cannot modify system variable",
+/* E_MKTIME_PROBLEM */    "C library function can't represent date/time",
+/* E_REDEF_FUNC */        "Attempt to redefine built-in function",
+/* E_CANTNEST_FDEF */     "Can't nest function definition in expression",
+/* E_REP_FULSPEC */       "Must fully specify date to use repeat factor",
+/* E_YR_TWICE */          "Year specified twice",
+/* E_MON_TWICE */         "Month specified twice",
+/* E_DAY_TWICE */         "Day specified twice",
+/* E_UNKNOWN_TOKEN */     "Unknown token",
+/* E_SPEC_MON */          "Must specify month in OMIT command",
+/* E_2MANY_PART */        "Too many partial OMITs (max. " STR(MAX_PARTIAL_OMITS) ")",
+/* E_2MANY_FULL */        "Too many full OMITs (max. " STR(MAX_FULL_OMITS) ")",
+/* E_PUSH_NOPOP */        "Warning: PUSH-OMIT-CONTEXT without matching POP-OMIT-CONTEXT",
+/* E_ERR_READING */       "Error reading",
+/* E_EXPECTING_EOL */     "Expecting end-of-line",
+/* E_BAD_HEBDATE */       "Invalid Hebrew date",
+/* E_IIF_ODD */           "iif(): odd number of arguments required",
+/* E_MISS_ENDIF */        "Warning: Missing ENDIF",
+/* E_EXPECT_COMMA */      "Expecting comma",
+/* E_WD_TWICE */          "Weekday specified twice",
+/* E_SKIP_ERR */          "Only use one of BEFORE, AFTER or SKIP",
+/* E_CANT_NEST_RTYPE */   "Can't nest MSG, MSF, RUN, etc. in expression",
+/* E_REP_TWICE */         "Repeat value specified twice",
+/* E_DELTA_TWICE */       "Delta value specified twice",
+/* E_BACK_TWICE */        "Back value specified twice",
+/* E_ONCE_TWICE */        "ONCE keyword used twice. (Hah.)",
+/* E_EXPECT_TIME */       "Expecting time after AT",
+/* E_UNTIL_TWICE */       "THROUGH/UNTIL keyword used twice",
+/* E_INCOMPLETE */        "Incomplete date specification",
+/* E_SCAN_TWICE */        "FROM/SCANFROM keyword used twice",
+/* E_VAR */               "Variable",
+/* E_VAL */               "Value",
+/* E_UNDEF */             "*UNDEFINED*",
+/* E_ENTER_FUN */         "Entering UserFN",
+/* E_LEAVE_FUN */         "Leaving UserFN",
+/* E_EXPIRED */           "Expired",
+/* E_CANTFORK */          "fork() failed - can't do queued reminders",
+/* E_CANTACCESS */        "Can't access file",
+/* M_BAD_SYS_DATE */      "Illegal system date: Year is less than %d\n",
+/* M_BAD_DB_FLAG */       "Unknown debug flag '%c'\n",
+/* M_BAD_OPTION */        "Unknown option '%c'\n",
+/* M_BAD_USER */          "Unknown user '%s'\n",
+/* M_NO_CHG_GID */        "Could not change gid to %d\n",
+/* M_NO_CHG_UID */        "Could not change uid to %d\n",
+/* M_NOMEM_ENV */         "Out of memory for environment\n",
+/* E_MISS_EQ */           "Missing '=' sign",
+/* E_MISS_VAR */          "Missing variable name",
+/* E_MISS_EXPR */         "Missing expression",
+/* M_CANTSET_ACCESS */    "Can't reset access date of %s\n",
+/* M_I_OPTION */          "Remind: '-i' option: %s\n",
+/* E_NOREMINDERS */       "No reminders.",
+/* M_QUEUED */            "%d reminder(s) queued for later today.\n",
+/* E_EXPECTING_NUMBER */  "Expecting number",
+/* M_BAD_WARN_FUNC */     "Undefined WARN function",
+/* E_CANT_CONVERT_TZ */   "Can't convert between time zones",
+/* E_NO_MATCHING_REMS */  "No files matching *.rem",
+/* E_STRING_TOO_LONG */   "String too long",
+/* E_TIME_TWICE */        "Time specified twice",
+/* E_DURATION_NO_AT */    "Cannot specify DURATION without specifying AT",
+/* E_EXPECTING_WEEKDAY */ "Expecting weekday name",
+/* E_REPEATED_ARG */      "Duplicate argument name",
+/* E_EXPR_DISABLED */     "Expression evaluation is disabled",
+/* E_TIME_EXCEEDED */     "Time limit for expression evaluation exceeded",
 }
 #endif /* MK_GLOBALS */
 ;

src/expr.h

@@ -1,66 +0,0 @@
-/***************************************************************/
-/*                                                             */
-/*  EXPR.H                                                     */
-/*                                                             */
-/*  Contains a few definitions used by expression evaluator.   */
-/*                                                             */
-/*  This file is part of REMIND.                               */
-/*  Copyright (C) 1992-2024 by Dianne Skoll                    */
-/*  SPDX-License-Identifier: GPL-2.0-only                      */
-/*                                                             */
-/***************************************************************/
-
-/* Define the types of values */
-#define ERR_TYPE       0
-#define INT_TYPE       1
-#define TIME_TYPE      2
-#define DATE_TYPE      3
-#define STR_TYPE       4
-#define DATETIME_TYPE  5
-#define SPECIAL_TYPE   6 /* Only for system variables */
-#define CONST_INT_TYPE 7 /* Only for system variables */
-
-/* Define stuff for parsing expressions */
-#define BEG_OF_EXPR '['
-#define END_OF_EXPR ']'
-#define COMMA ','
-
-#define UN_OP 0  /* Unary operator */
-#define BIN_OP 1 /* Binary Operator */
-#define FUNC 2   /* Function */
-
-/* Make the pushing and popping of values and operators in-line code
-   for speed.  BEWARE:  These macros invoke return if an error happens ! */
-
-#define PushOpStack(op) \
-if (OpStackPtr >= OP_STACK_SIZE) \
-return E_OP_STK_OVER; \
-else \
-OpStack[OpStackPtr++] = (op)
-
-#define PopOpStack(op) \
-if (OpStackPtr <= 0) \
-return E_OP_STK_UNDER; \
-else \
-(op) = OpStack[--OpStackPtr]
-
-#define PushValStack(val) \
-if (ValStackPtr >= VAL_STACK_SIZE) \
-return E_VA_STK_OVER; \
-else \
-ValStack[ValStackPtr++] = (val)
-
-#define PopValStack(val) \
-if (ValStackPtr <= 0) \
-return E_VA_STK_UNDER; \
-else \
-(val) = ValStack[--ValStackPtr]
-
-/* These functions are in utils.c and are used to detect overflow
-   in various arithmetic operators.  They have to be in separate
-   functions with extern linkage to defeat compiler optimizations
-   that would otherwise break the overflow checks. */
-extern int _private_mul_overflow(int a, int b);
-extern int _private_add_overflow(int a, int b);
-extern int _private_sub_overflow(int a, int b);
-

src/files.c

@@ -42,8 +42,8 @@
 
 
 /* Convenient macros for closing files */
-#define FCLOSE(fp) (((fp)&&((fp)!=stdin)) ? (fclose(fp),(fp)=NULL) : ((fp)=NULL))
-#define PCLOSE(fp) (((fp)&&((fp)!=stdin)) ? (pclose(fp),(fp)=NULL) : ((fp)=NULL))
+#define FCLOSE(fp) ((((fp)!=stdin)) ? (fclose(fp),(fp)=NULL) : ((fp)=NULL))
+#define PCLOSE(fp) ((((fp)!=stdin)) ? (pclose(fp),(fp)=NULL) : ((fp)=NULL))
 
 /* Define the structures needed by the file caching system */
 typedef struct cache {
@@ -79,6 +79,7 @@ typedef struct {
     int LineNo;
     unsigned int IfFlags;
     int NumIfs;
+    int IfLinenos[IF_NEST];
     long offset;
     CachedLine *CLine;
     int ownedByMe;
@@ -101,13 +102,24 @@ static int CheckSafetyAux (struct stat *statbuf);
 static int PopFile (void);
 static int IncludeCmd(char const *);
 
-void set_cloexec(int fd)
+static void
+got_a_fresh_line(void)
+{
+    FreshLine = 1;
+    WarnedAboutImplicit = 0;
+}
+
+void set_cloexec(FILE *fp)
 {
     int flags;
-    flags = fcntl(fd, F_GETFD);
-    if (flags >= 0) {
-        flags |= FD_CLOEXEC;
-        fcntl(fd, F_SETFD, flags);
+    int fd;
+    if (fp) {
+        fd = fileno(fp);
+        flags = fcntl(fd, F_GETFD);
+        if (flags >= 0) {
+            flags |= FD_CLOEXEC;
+            fcntl(fd, F_SETFD, flags);
+        }
     }
 }
 
@@ -135,7 +147,7 @@ static void OpenPurgeFile(char const *fname, char const *mode)
     if (!PurgeFP) {
 	fprintf(ErrFp, "Cannot open `%s' for writing: %s\n", DBufValue(&fname_buf), strerror(errno));
     }
-    set_cloexec(fileno(PurgeFP));
+    set_cloexec(PurgeFP);
     DBufFree(&fname_buf);
 }
 
@@ -177,7 +189,7 @@ int ReadLine(void)
 	CurLine = CLine->text;
 	LineNo = CLine->LineNo;
 	CLine = CLine->next;
-	FreshLine = 1;
+	got_a_fresh_line();
         clear_callstack();
 	if (DebugFlag & DB_ECHO_LINE) OutputLine(ErrFp);
 	return OK;
@@ -278,7 +290,7 @@ static int ReadLineFromFile(int use_pclose)
 	    CurLine = DBufValue(&LineBuffer);
 	}
 
-	FreshLine = 1;
+	got_a_fresh_line();
         clear_callstack();
 	if (DebugFlag & DB_ECHO_LINE) OutputLine(ErrFp);
 	return OK;
@@ -340,7 +352,7 @@ int OpenFile(char const *fname)
 	}
     } else {
 	fp = fopen(fname, "r");
-        if (fp) set_cloexec(fileno(fp));
+        set_cloexec(fp);
 	if (DebugFlag & DB_TRACE_FILES) {
 	    fprintf(ErrFp, "Reading `%s': Opening file on disk\n", fname);
 	}
@@ -360,7 +372,7 @@ int OpenFile(char const *fname)
 	    if (strcmp(fname, "-")) {
 		fp = fopen(fname, "r");
 		if (!fp || !CheckSafety()) return E_CANT_OPEN;
-                set_cloexec(fileno(fp));
+                set_cloexec(fp);
 		if (PurgeMode) OpenPurgeFile(fname, "w");
 	    } else {
 		fp = stdin;
@@ -522,8 +534,14 @@ static int NextChainedFile(IncludeStruct *i)
 static int PopFile(void)
 {
     IncludeStruct *i;
+    int j;
 
-    if (!Hush && NumIfs) Eprint("%s", ErrMsg[E_MISS_ENDIF]);
+    if (!Hush && NumIfs) {
+        Eprint("%s", ErrMsg[E_MISS_ENDIF]);
+        for (j=NumIfs-1; j >=0; j--) {
+            fprintf(ErrFp, "%s(%d): IF without ENDIF\n", FileName, IfLinenos[j]);
+        }
+    }
     if (!IStackPtr) return E_EOF;
     i = &IStack[IStackPtr-1];
 
@@ -543,6 +561,7 @@ static int PopFile(void)
 
     LineNo = i->LineNo;
     IfFlags = i->IfFlags;
+    memcpy(IfLinenos, i->IfLinenos, IF_NEST);
     NumIfs = i->NumIfs;
     CLine = i->CLine;
     fp = NULL;
@@ -557,7 +576,7 @@ static int PopFile(void)
 	if (strcmp(i->filename, "-")) {
 	    fp = fopen(i->filename, "r");
 	    if (!fp || !CheckSafety()) return E_CANT_OPEN;
-            set_cloexec(fileno(fp));
+            set_cloexec(fp);
 	    if (PurgeMode) OpenPurgeFile(i->filename, "a");
 	} else {
 	    fp = stdin;
@@ -837,7 +856,7 @@ static int IncludeCmd(char const *cmd)
     char const *fname;
     int old_flag;
 
-    FreshLine = 1;
+    got_a_fresh_line();
     clear_callstack();
     if (IStackPtr+1 >= INCLUDE_NEST) return E_NESTED_INCLUDE;
     i = &IStack[IStackPtr];
@@ -867,6 +886,7 @@ static int IncludeCmd(char const *cmd)
     i->LineNo = LineNo;
     i->NumIfs = NumIfs;
     i->IfFlags = IfFlags;
+    memcpy(i->IfLinenos, IfLinenos, IF_NEST);
     i->CLine = CLine;
     i->offset = -1L;
     i->chain = NULL;
@@ -955,7 +975,7 @@ int IncludeFile(char const *fname)
     int oldRunDisabled;
     struct stat statbuf;
 
-    FreshLine = 1;
+    got_a_fresh_line();
     clear_callstack();
     if (IStackPtr+1 >= INCLUDE_NEST) return E_NESTED_INCLUDE;
     i = &IStack[IStackPtr];
@@ -969,6 +989,7 @@ int IncludeFile(char const *fname)
     i->LineNo = LineNo;
     i->NumIfs = NumIfs;
     i->IfFlags = IfFlags;
+    memcpy(i->IfLinenos, IfLinenos, IF_NEST);
     i->CLine = CLine;
     i->offset = -1L;
     i->chain = NULL;

src/globals.h

@@ -23,6 +23,7 @@
 #define INIT(var, val) var
 #endif
 
+#include <signal.h>
 #ifdef HAVE_SYS_TYPES_H
 #include <sys/types.h>
 #endif
@@ -39,7 +40,7 @@ EXTERN  FILE *ErrFp;
 #define IsLeapYear(y) (((y) % 4) ? 0 : ((!((y) % 100) && ((y) % 400)) ? 0 : 1 ))
 #define DaysInMonth(m, y) ((m) != 1 ? MonthDays[m] : 28 + IsLeapYear(y))
 
-#define DestroyValue(x) (void) (((x).type == STR_TYPE && (x).v.str) ? (free((x).v.str),(x).v.str = NULL,(x).type = ERR_TYPE) : 0)
+#define DestroyValue(x) do { if ((x).type == STR_TYPE && (x).v.str) { free((x).v.str); (x).v.str = NULL; } (x).type = ERR_TYPE; } while (0)
 
 EXTERN	int	DSEToday;
 EXTERN	int	RealToday;
@@ -48,6 +49,7 @@ EXTERN	int	CurMon;
 EXTERN	int	CurYear;
 EXTERN  int	LineNo;
 EXTERN  int     FreshLine;
+EXTERN  int     WarnedAboutImplicit;
 EXTERN  uid_t   TrustedUsers[MAX_TRUSTED_USERS];
 
 EXTERN  INIT(   int     MaxLateMinutes, 0);
@@ -73,10 +75,16 @@ EXTERN  INIT(	int 	InfiniteDelta, 0);
 EXTERN  INIT(   int     DefaultTDelta, 0);
 EXTERN  INIT(   int     DeltaOverride, 0);
 EXTERN  INIT(   int     RunDisabled, 0);
+EXTERN  INIT(   int     ExpressionEvaluationDisabled, 0);
+EXTERN  INIT(   int     ExpressionEvaluationTimeLimit, 0);
+EXTERN  INIT(   volatile sig_atomic_t ExpressionTimeLimitExceeded, 0);
 EXTERN  INIT(   int     IgnoreOnce, 0);
-EXTERN  INIT(   int     SortByTime, 0);
-EXTERN  INIT(   int     SortByDate, 0);
-EXTERN	INIT(	int	SortByPrio, 0);
+EXTERN  INIT(   char const *OnceFile, NULL);
+EXTERN  INIT(   int     OnceDate, -1);
+EXTERN  INIT(   int     ProcessedOnce, 0);
+EXTERN  INIT(   int     SortByTime, SORT_NONE);
+EXTERN  INIT(   int     SortByDate, SORT_NONE);
+EXTERN	INIT(	int	SortByPrio, SORT_NONE);
 EXTERN  INIT(   int     UntimedBeforeTimed, 0);
 EXTERN	INIT(	int	DefaultPrio, NO_PRIORITY);
 EXTERN  INIT(   int     SysTime, -1);
@@ -110,11 +118,12 @@ EXTERN  INIT(   int     PurgeIncludeDepth, 0);
 EXTERN  INIT(   FILE    *PurgeFP,  NULL);
 EXTERN  INIT(   int     NumIfs,    0);
 EXTERN  INIT(   unsigned int IfFlags,   0);
+EXTERN  INIT(   int IfLinenos[IF_NEST], {0});
 EXTERN  INIT(   int     LastTrigValid, 0);
 EXTERN  Trigger  LastTrigger;
 EXTERN  TimeTrig LastTimeTrig;
 EXTERN  INIT(   int     LastTriggerDate, 0);
-EXTERN  INIT(   int     LastTriggerTime, 0);
+EXTERN  INIT(   int     LastTriggerTime, NO_TIME);
 EXTERN  INIT(   int     ShouldCache, 0);
 EXTERN  char const   *CurLine;
 EXTERN  INIT(   int     NumTriggered, 0);
@@ -159,6 +168,12 @@ EXTERN DynamicBuffer Banner;
 EXTERN DynamicBuffer LineBuffer;
 EXTERN DynamicBuffer ExprBuf;
 
+/* User-func recursion level */
+EXTERN  INIT(   unsigned int FuncRecursionLevel, 0);
+
+/* Suppress warnings about implicit REM and MSG */
+EXTERN  INIT(   int SuppressImplicitRemWarnings, 0);
+
 extern int NumFullOmits, NumPartialOmits;
 
 /* List of months */

src/hbcal.c

@@ -20,6 +20,12 @@
 #include "protos.h"
 #include "globals.h"
 #include "err.h"
+#include <string.h>
+
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+
 #define HOUR 1080L
 #define DAY  (24L*HOUR)
 #define WEEK (7L*DAY)

src/init.c

@@ -19,7 +19,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <ctype.h>
-
+#include <time.h>
 #include <stdlib.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -38,7 +38,6 @@
 #include "types.h"
 #include "globals.h"
 #include "protos.h"
-#include "expr.h"
 #include "err.h"
 
 static int should_guess_terminal_background = 1;
@@ -78,6 +77,7 @@ static void ProcessLongOption(char const *arg);
  *             t = Display trigger dates
  *             v = Dump variables at end
  *             l = Display entire line in error messages
+ *             s = Display expression-parsing stack usage before exit
  *  -e       = Send messages normally sent to stderr to stdout instead
  *  -z[n]    = Daemon mode waking up every n (def 1) minutes.
  *  -bn      = Time format for cal (0, 1, or 2)
@@ -241,7 +241,6 @@ void InitRemind(int argc, char const *argv[])
 	arg++;
 	if (!*arg) {
 	    UseStdin = 1;
-	    IgnoreOnce = 1;
 	    i--;
 	    break;
 	}
@@ -324,6 +323,7 @@ void InitRemind(int argc, char const *argv[])
 		NextMode = 1;
 		DontQueue = 1;
 		Daemon = 0;
+                IgnoreOnce = 1;
 		break;
 
 	    case 'r':
@@ -457,6 +457,7 @@ void InitRemind(int argc, char const *argv[])
 		break;
 	    case 'c':
 	    case 'C':
+                IgnoreOnce = 1;
 		DoCalendar = 1;
 		weeks = 0;
 		/* Parse the flags */
@@ -501,6 +502,7 @@ void InitRemind(int argc, char const *argv[])
 	    case 's':
 	    case 'S':
 		DoSimpleCalendar = 1;
+                IgnoreOnce = 1;
 		weeks = 0;
 		while(*arg) {
 		    if (*arg == 'a' || *arg == 'A') {
@@ -527,6 +529,7 @@ void InitRemind(int argc, char const *argv[])
 	    case 'p':
 	    case 'P':
 		DoSimpleCalendar = 1;
+                IgnoreOnce = 1;
 		PsCal = PSCAL_LEVEL1;
 		while (*arg == 'a' || *arg == 'A' ||
                        *arg == 'q' || *arg == 'Q' ||
@@ -604,6 +607,7 @@ void InitRemind(int argc, char const *argv[])
 	    case 'D':
 		while (*arg) {
 		    switch(*arg++) {
+                    case 's': case 'S': DebugFlag |= DB_PARSE_EXPR;  break;
 		    case 'e': case 'E': DebugFlag |= DB_ECHO_LINE;   break;
 		    case 'x': case 'X': DebugFlag |= DB_PRTEXPR;     break;
 		    case 't': case 'T': DebugFlag |= DB_PRTTRIG;     break;
@@ -713,12 +717,17 @@ void InitRemind(int argc, char const *argv[])
 		break;
 
 	    default:
+                if (tok.type == T_Illegal && tok.val < 0) {
+                    fprintf(stderr, "%s: `%s'\n", ErrMsg[-tok.val], arg);
+                    Usage();
+                }
 		Usage();
 	    }
 	}
 
 	if (rep > 0) {
 	    Iterations = rep;
+            IgnoreOnce = 1;
 	    DontQueue = 1;
 	    Daemon = 0;
 	}
@@ -804,6 +813,7 @@ void Usage(void)
     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");
+    fprintf(ErrFp, "\nRemind home page: %s\n", PACKAGE_URL);
     exit(EXIT_FAILURE);
 }
 #endif /* L_USAGE_OVERRIDE */
@@ -923,7 +933,12 @@ static void InitializeVar(char const *str)
     r = 0;
     while (*str && *str != '=') {
 	if (r < VAR_NAME_LEN) {
-	    varname[r++] = *str;
+            if (isalpha(*str) || *str == '_' || (r > 0 && *str == '(') || (r == 0 && *str == '$') || (r > 0 && isdigit(*str))) {
+                varname[r++] = *str;
+            } else {
+                fprintf(ErrFp, ErrMsg[M_I_OPTION], ErrMsg[E_ILLEGAL_CHAR]);
+                return;
+            }
 	}
 	if (*str == '(') {
 	    /* Do a function definition if we see a paren */
@@ -933,10 +948,28 @@ static void InitializeVar(char const *str)
 	str++;
     }
     varname[r] = 0;
-    if (!*str) {
-	fprintf(ErrFp, ErrMsg[M_I_OPTION], ErrMsg[E_MISS_EQ]);
+    if (!*varname) {
+	fprintf(ErrFp, ErrMsg[M_I_OPTION], ErrMsg[E_MISS_VAR]);
 	return;
     }
+    if (!*str) {
+        /* Setting a system var does require =expr on the commandline */
+        if (*varname == '$') {
+            fprintf(ErrFp, ErrMsg[M_I_OPTION], ErrMsg[E_MISS_EQ]);
+            return;
+        }
+        val.type = INT_TYPE;
+        val.v.val = 0;
+        r = SetVar(varname, &val);
+        if (!r) {
+            r = PreserveVar(varname);
+        }
+        if (r) {
+            fprintf(ErrFp, ErrMsg[M_I_OPTION], ErrMsg[r]);
+        }
+        return;
+    }
+
     if (!*varname) {
 	fprintf(ErrFp, ErrMsg[M_I_OPTION], ErrMsg[E_MISS_VAR]);
 	return;
@@ -989,13 +1022,75 @@ AddTrustedUser(char const *username)
     NumTrustedUsers++;
 }
 
+static pid_t LimiterPid = (pid_t) -1;
+
+void unlimit_execution_time(void)
+{
+    if (LimiterPid != (pid_t) -1) {
+        kill(LimiterPid, SIGTERM);
+        LimiterPid = (pid_t) -1;
+    }
+}
+
+static void limit_execution_time(int t)
+{
+    pid_t parent = getpid();
+
+    pid_t pid = fork();
+    if (pid < 0) {
+        perror("fork");
+        exit(1);
+    }
+
+    if (pid > 0) {
+        LimiterPid = pid;
+        /* In the parent */
+        return;
+    }
+
+    /* In the child */
+    time_t start = time(NULL);
+    while(1) {
+        sleep(1);
+        if (kill(parent, 0) < 0) {
+            /* Parent has probably exited */
+            exit(0);
+        }
+        if (time(NULL) - start > t) {
+            kill(parent, SIGXCPU);
+            exit(0);
+        }
+    }
+}
+
 static void
 ProcessLongOption(char const *arg)
 {
+    int t;
     if (!strcmp(arg, "version")) {
         printf("%s\n", VERSION);
         exit(EXIT_SUCCESS);
     }
+    if (!strcmp(arg, "print-config-cmd")) {
+        printf("%s\n", CONFIG_CMD);
+        exit(EXIT_SUCCESS);
+    }
+    if (!strcmp(arg, "print-tokens")) {
+        print_remind_tokens();
+        print_builtinfunc_tokens();
+        print_sysvar_tokens();
+        exit(0);
+    }
+    if (sscanf(arg, "max-execution-time=%d", &t) == 1) {
+        if (t < 0) {
+            fprintf(ErrFp, "%s: --max-execution-time must be non-negative\n", ArgV[0]);
+            return;
+        }
+        if (t > 0) {
+            limit_execution_time(t);
+        }
+        return;
+    }
     fprintf(ErrFp, "%s: Unknown long option --%s\n", ArgV[0], arg);
 }
 
@@ -1004,7 +1099,7 @@ guess_terminal_background(int *r, int *g, int *b)
 {
     int ttyfd;
     struct pollfd p;
-    int rr, gg, bb;
+    unsigned int rr, gg, bb;
     char buf[128];
     int n;
 
@@ -1038,6 +1133,8 @@ guess_terminal_background(int *r, int *g, int *b)
 
     if (n != 8) {
         /* write failed... WTF?  Not much we can do */
+        tty_reset(ttyfd);
+        close(ttyfd);
         return;
     }
 
@@ -1061,6 +1158,7 @@ guess_terminal_background(int *r, int *g, int *b)
         return;
     }
     tty_reset(ttyfd);
+    close(ttyfd);
     buf[n+1] = 0;
     if (n < 25) {
         /* Too short */
@@ -1070,9 +1168,9 @@ guess_terminal_background(int *r, int *g, int *b)
         /* Couldn't scan color codes */
         return;
     }
-    *r = (rr >> 8) & 255;
-    *g = (gg >> 8) & 255;
-    *b = (bb >> 8) & 255;
+    *r = (int) ((rr >> 8) & 255);
+    *g = (int) ((gg >> 8) & 255);
+    *b = (int) ((bb >> 8) & 255);
 }
 
 static struct termios orig_termios;

src/langs/finnish.h

@@ -145,7 +145,7 @@ EXTERN char *ErrMsg[] =
     "Ok",
     "Puuttuva ']'",
     "Puuttuva lainausmerkki",
-    "Liian monimutkainen lauseke - liikaa operaattoreita",
+    "Liian monimutkainen lauseke",
     "Liian monimutkainen lauseke - liikaa operandeja",
     "Puuttuva ')'",
     "Määrittelemätön funktio",
@@ -245,7 +245,11 @@ EXTERN char *ErrMsg[] =
     "No files matching *.rem",
     "String too long",
     "Time specified twice",
-    "Cannot specify DURATION without specifying AT"
+    "Cannot specify DURATION without specifying AT",
+    "Odotettu viikonpäivän nimi",
+    "Päällekkäinen argumentin nimi",
+    "Lausekkeiden arviointi on poistettu käytöstä",
+
 };
 #endif /* MK_GLOBALS */
 
@@ -271,12 +275,10 @@ void Usage(void)
     fprintf(ErrFp, " -o     Älä noudata ONCE-lauseita\n");
     fprintf(ErrFp, " -t     Laukaise kaikki viestit deltan arvosta välittämättä\n");
     fprintf(ErrFp, " -h     Suppeat tulostukset\n");
-#ifdef HAVE_QUEUED
     fprintf(ErrFp, " -a     Älä laukaise viestejä heti - lisää ne jonoon\n");
     fprintf(ErrFp, " -q     Älä lisää viestejä jonoon\n");
     fprintf(ErrFp, " -f     Laukaise viestit, pysy etualalla\n");
     fprintf(ErrFp, " -z[n]  Käynnisty demonina, herätys n:n (5:n) minuutin välein\n");
-#endif
     fprintf(ErrFp, " -d...  Virheenetsintä: e=echo x=expr-eval t=trig v=dumpvars l=showline\n");
     fprintf(ErrFp, " -e     Ohjaa virhetulostus stdout-vuohon\n");
     fprintf(ErrFp, " -b[n]  Ajan ilmaisu: 0=ap/ip, 1=24 tuntia, 2=ei aikoja\n");

src/langs/french.h

@@ -119,7 +119,7 @@ EXTERN char *ErrMsg[] =
     "Ok",
     "']' manquant",
     "Apostrophe manquant",
-    "Expression trop complexe - trop d'opérateurs",
+    "Expression trop complexe",
     "Expression trop complexe - trop d'opérandes",
     "')' manquante",
     "Fonction non-définie",
@@ -219,7 +219,11 @@ EXTERN char *ErrMsg[] =
     "No files matching *.rem",
     "String too long",
     "Time specified twice",
-    "Cannot specify DURATION without specifying AT"
+    "Cannot specify DURATION without specifying AT",
+    "Nom du jour de la semaine attendu",
+    "Nom de l'argument en double",
+    "L'évaluation de l'expression est désactivée",
+
 };
 #endif /* MK_GLOBALS */
 
@@ -245,12 +249,10 @@ void Usage(void)
     fprintf(ErrFp, " -o     Ignorer instructions ONCE\n");
     fprintf(ErrFp, " -t     Déclencher tous les rappels peu importe le delta\n");
     fprintf(ErrFp, " -h     Mode silencieux\n");
-#ifdef HAVE_QUEUED
     fprintf(ErrFp, " -a     Ne pas déclencher les rappels minutés immédiatement - les mettre en file\n");
     fprintf(ErrFp, " -q     Ne pas mettre les rappels minutés en file\n");
     fprintf(ErrFp, " -f     Déclencher les rappels minutés immédiatement en restant en avant-plan\n");
     fprintf(ErrFp, " -z[n]  Entrer en mode 'daemon', réveil chaque n (5) minutes\n");
-#endif
     fprintf(ErrFp, " -d...  Debug: e=echo x=expr-eval t=trig v=dumpvars l=showline\n");
     fprintf(ErrFp, " -e     Envoyer les messages de stderr à stdout\n");
     fprintf(ErrFp, " -b[n]  Formats de l'heure pour le calendrier: 0=am/pm, 1=24hr, 2=aucun\n");

src/langs/polish.h

@@ -135,7 +135,7 @@ EXTERN char *ErrMsg[] =
     "OK",
     "Brakujący ']'",
     "Brakujący nawias",
-    "Zbyt skomplikowane wyrażenie - za dużo operatorów",
+    "Zbyt skomplikowane wyrażenie",
     "Zbyt skomplikowane wyrażenie - za dużo argumentów",
     "Brakujący ')'",
     "Nie zdefiniowana funkcja",
@@ -235,7 +235,10 @@ EXTERN char *ErrMsg[] =
     "No files matching *.rem",
     "String too long",
     "Time specified twice",
-    "Cannot specify DURATION without specifying AT"
+    "Cannot specify DURATION without specifying AT",
+    "Oczekiwana nazwa dnia tygodnia",
+    "Zduplikowana nazwa argumentu",
+    "Ocena wyrażeń jest wyłączona",
 };
 #endif /* MK_GLOBALS */
 
@@ -261,12 +264,10 @@ void Usage(void)
     fprintf(ErrFp, " -o     Ignoruj instrukcje ONCE\n");
     fprintf(ErrFp, " -t     Odpal wszystkie przyszłe przypomnienia niezależnie od delty\n");
     fprintf(ErrFp, " -h     Praca bezszmerowa\n");
-#ifdef HAVE_QUEUED
     fprintf(ErrFp, " -a     Nie odpalaj przyponień czasowych - kolejkuj je\n");
     fprintf(ErrFp, " -q     Nie kolejkuj przyponień czasowych\n");
     fprintf(ErrFp, " -f     Nie przechodź do pracy w tle\n");
     fprintf(ErrFp, " -z[n]  Pracuj jako demon, budząc się co n (5) minut\n");
-#endif
     fprintf(ErrFp, " -d...  Odpluskwianie: e=echo x=expr-eval t=trig v=dumpvars l=showline\n");
     fprintf(ErrFp, " -e     Komunikaty o błędach skieruj na stdout\n");
     fprintf(ErrFp, " -b[n]  Format czasu: 0=am/pm, 1=24godz., 2=żaden\n");

src/langs/portbr.h

@@ -144,7 +144,7 @@ EXTERN char *ErrMsg[] =
     "Ok",
     "Falta um ']'",
     "Falta uma aspa",
-    "Expressao muito complexa - muitos operadores",
+    "Expressao muito complexa",
     "Expressao muito complexa - muitos operandos",
     "Falta um ')'",
     "Funcao nao definida",
@@ -244,7 +244,10 @@ EXTERN char *ErrMsg[] =
     "No files matching *.rem",
     "String too long",
     "Time specified twice",
-    "Cannot specify DURATION without specifying AT"
+    "Cannot specify DURATION without specifying AT",
+    "Esperando nome do dia da semana",
+    "Nome de argumento duplicado",
+    "A avaliação da expressão está desabilitada",
 };
 #endif /* MK_GLOBALS */
 
@@ -270,12 +273,10 @@ void Usage(void)
     fprintf(ErrFp, " -o     Ignora diretivas ONCE\n");
     fprintf(ErrFp, " -t     Aciona todos os compromissos futuros, sem considerar o delta\n");
     fprintf(ErrFp, " -h     Modo `Hush' - quieto\n");
-#ifdef HAVE_QUEUED
     fprintf(ErrFp, " -a     Nao aciona compromissos com hora imediatamente - apenas coloca na fila\n");
     fprintf(ErrFp, " -q     Nao coloca compromissos com hora na fila\n");
     fprintf(ErrFp, " -f     Aciona compromissos com hora em modo foreground\n");
     fprintf(ErrFp, " -z[n]  Modo `daemon', acordando a cada n (5) minutos.\n");
-#endif
     fprintf(ErrFp, " -d...  Debug: e=echo x=expr-eval t=trigger v=dumpvars l=showline\n");
     fprintf(ErrFp, " -e     Desvia mensagens normalmente enviadas a stderr para stdout\n");
     fprintf(ErrFp, " -b[n]  Formato da hora para o cal: 0=am/pm, 1=24hr, 2=nenhum\n");

src/main.c

@@ -22,6 +22,11 @@
 #include <stdio.h>
 #include <signal.h>
 #include <string.h>
+
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+
 #include <stdarg.h>
 #ifdef HAVE_LOCALE_H
 #include <locale.h>
@@ -41,7 +46,6 @@
 
 #include "types.h"
 #include "protos.h"
-#include "expr.h"
 #include "globals.h"
 #include "err.h"
 
@@ -50,6 +54,46 @@ static void DoReminders(void);
 /* Macro for simplifying common block so as not to litter code */
 #define OUTPUT(c) do { if (output) { DBufPutc(output, c); } else { putchar(c); } } while(0)
 
+void
+exitfunc(void)
+{
+    /* Kill any execution-time-limiter process */
+    unlimit_execution_time();
+
+    int maxlen, total;
+    double avglen;
+    if (DebugFlag & DB_PARSE_EXPR) {
+        fflush(stdout);
+        fflush(stderr);
+        get_var_hash_stats(&total, &maxlen, &avglen);
+        fprintf(stderr, " Var hash: total = %d; maxlen = %d; avglen = %.3f\n", total, maxlen, avglen);
+        get_userfunc_hash_stats(&total, &maxlen, &avglen);
+        fprintf(stderr, "Func hash: total = %d; maxlen = %d; avglen = %.3f\n", total, maxlen, avglen);
+        UnsetAllUserFuncs();
+        print_expr_nodes_stats();
+    }
+}
+
+static void sigalrm(int sig)
+{
+    UNUSED(sig);
+    if (ExpressionEvaluationTimeLimit) {
+        ExpressionTimeLimitExceeded = 1;
+    }
+}
+
+static void sigxcpu(int sig)
+{
+
+    UNUSED(sig);
+    int r = write(STDERR_FILENO, "\n\nmax-execution-time exceeded.\n\n", 32);
+
+    /* Pretend to use r to avoid compiler warning */
+    /* cppcheck-suppress duplicateExpression */
+    /* cppcheck-suppress knownArgument */
+    _exit(1 + (r-r));
+}
+
 /***************************************************************/
 /***************************************************************/
 /**                                                           **/
@@ -61,6 +105,8 @@ int main(int argc, char *argv[])
 {
     int pid;
 
+    struct sigaction act;
+
 #ifdef HAVE_SETLOCALE
     setlocale(LC_ALL, "");
 #endif
@@ -73,9 +119,30 @@ int main(int argc, char *argv[])
     ArgV = (char const **) argv;
 
     InitRemind(argc, (char const **) argv);
+
+    act.sa_handler = sigalrm;
+    sigemptyset(&act.sa_mask);
+    act.sa_flags = SA_RESTART;
+    if (sigaction(SIGALRM, &act, NULL) < 0) {
+        fprintf(stderr, "%s: sigaction() failed: %s\n",
+                argv[0], strerror(errno));
+        exit(1);
+    }
+
+    act.sa_handler = sigxcpu;
+    act.sa_flags = SA_RESTART;
+    sigemptyset(&act.sa_mask);
+    if (sigaction(SIGXCPU, &act, NULL) < 0) {
+        fprintf(stderr, "%s: sigaction() failed: %s\n",
+                argv[0], strerror(errno));
+        exit(1);
+    }
+
     DBufInit(&(LastTrigger.tags));
     ClearLastTriggers();
 
+    atexit(exitfunc);
+
     if (DoCalendar || (DoSimpleCalendar && (!NextMode || PsCal))) {
 	ProduceCalendar();
 	return 0;
@@ -99,7 +166,7 @@ int main(int argc, char *argv[])
 	}
 
 	if (!Hush) {
-	    if (DestroyOmitContexts())
+	    if (DestroyOmitContexts(1))
 		Eprint("%s", ErrMsg[E_PUSH_NOPOP]);
 	    if (!Daemon && !NextMode && !NumTriggered && !NumQueued) {
 		printf("%s\n", ErrMsg[E_NOREMINDERS]);
@@ -152,7 +219,7 @@ void
 PerIterationInit(void)
 {
     ClearGlobalOmits();
-    DestroyOmitContexts();
+    DestroyOmitContexts(1);
     DestroyVars(0);
     DefaultColorR = -1;
     DefaultColorG = -1;
@@ -181,7 +248,8 @@ static void DoReminders(void)
     if (!UseStdin) {
 	FileAccessDate = GetAccessDate(InitialFile);
     } else {
-	FileAccessDate = DSEToday;
+	FileAccessDate = DSEToday - 1;
+        if (FileAccessDate < 0) FileAccessDate = 0;
     }
 
     if (FileAccessDate < 0) {
@@ -279,9 +347,11 @@ static void DoReminders(void)
 	    case T_Pop:     r=PopOmitContext(&p);     break;
 	    case T_Preserve: r=DoPreserve(&p);  break;
 	    case T_Push:    r=PushOmitContext(&p);    break;
+            case T_Expr: r = DoExpr(&p); break;
 	    case T_RemType: if (tok.val == RUN_TYPE) {
 		    r=DoRun(&p);
 		} else {
+		    DestroyParser(&p);
 		    CreateParser(CurLine, &p);
 		    r=DoRem(&p);
 		    purge_handled = 1;
@@ -289,11 +359,18 @@ static void DoReminders(void)
 		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. */
+	    /* If we don't recognize the command, do a REM by default, but warn */
 
-	    default: CreateParser(CurLine, &p); purge_handled = 1; r=DoRem(&p); break;
+	    default:
+                if (!SuppressImplicitRemWarnings) {
+                    Wprint("Unrecognized command; interpreting as REM");
+                    WarnedAboutImplicit = 1;
+                }
+                DestroyParser(&p);
+                CreateParser(CurLine, &p);
+                purge_handled = 1;
+                r=DoRem(&p);
+                break;
 
 	    }
 	    if (r && (!Hush || r != E_RUN_DISABLED)) {
@@ -451,6 +528,16 @@ int ParseChar(ParsePtr p, int *err, int peek)
 		return *(p->pos++);
 	    }
 	}
+
+        /* Convert [[ to just a literal [ */
+        if (*p->pos == BEG_OF_EXPR && *(p->pos+1) == BEG_OF_EXPR) {
+	    if (peek) {
+		return *(p->pos+1);
+	    } else {
+                p->pos++;
+		return *(p->pos++);
+	    }
+        }
 	p->expr_happened = 1;
 	p->pos++;
 	r = EvalExpr(&(p->pos), &val, p);
@@ -459,8 +546,15 @@ int ParseChar(ParsePtr p, int *err, int peek)
 	    DestroyParser(p);
 	    return 0;
 	}
+        while(*p->pos && (isempty(*p->pos))) {
+            p->pos++;
+        }
 	if (*p->pos != END_OF_EXPR) {
-	    *err = E_MISS_END;
+            if (*p->pos) {
+                *err = E_PARSE_ERR;
+            } else {
+                *err = E_MISS_END;
+            }
 	    DestroyParser(p);
 	    DestroyValue(val);
 	    return 0;
@@ -575,6 +669,57 @@ int ParseIdentifier(ParsePtr p, DynamicBuffer *dbuf)
     }
 }
 
+/***************************************************************/
+/*                                                             */
+/* ParseExpr                                                   */
+/*                                                             */
+/* We are expecting an expression here.  Parse it and return   */
+/* the value node tree.                                        */
+/*                                                             */
+/***************************************************************/
+expr_node * ParseExpr(ParsePtr p, int *r)
+{
+
+    int bracketed = 0;
+    expr_node *node;
+
+    if (p->isnested) {
+        *r = E_PARSE_ERR;  /* Can't nest expressions */
+        return NULL;
+    }
+    if (!p->pos) {
+        *r = E_PARSE_ERR;      /* Missing expression */
+        return NULL;
+    }
+
+    while (isempty(*p->pos)) (p->pos)++;
+    if (!*(p->pos)) {
+        *r = E_EOLN;
+        return NULL;
+    }
+    if (*p->pos == BEG_OF_EXPR) {
+	(p->pos)++;
+	bracketed = 1;
+    }
+    node = parse_expression(&(p->pos), r, NULL);
+    if (*r) {
+        return free_expr_tree(node);
+    }
+
+    if (bracketed) {
+	if (*p->pos != END_OF_EXPR) {
+            if (*p->pos) {
+                *r = E_PARSE_ERR;
+            } else {
+                *r = E_MISS_END;
+            }
+            return free_expr_tree(node);
+        }
+	(p->pos)++;
+    }
+    return node;
+}
+
 /***************************************************************/
 /*                                                             */
 /* EvaluateExpr                                                */
@@ -586,21 +731,22 @@ int ParseIdentifier(ParsePtr p, DynamicBuffer *dbuf)
 int EvaluateExpr(ParsePtr p, Value *v)
 {
 
-    int bracketed = 0;
     int r;
+    int nonconst = 0;
+    expr_node *node = ParseExpr(p, &r);
 
-    if (p->isnested) return E_PARSE_ERR;  /* Can't nest expressions */
-    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;
+    if (r != OK) {
+        return r;
     }
-    r = EvalExpr(&(p->pos), v, p);
+    if (!node) {
+        return E_SWERR;
+    }
+
+    r = evaluate_expression(node, NULL, v, &nonconst);
+    free_expr_tree(node);
     if (r) return r;
-    if (bracketed) {
-	if (*p->pos != END_OF_EXPR) return E_MISS_END;
-	(p->pos)++;
+    if (nonconst) {
+        p->nonconst_expr = 1;
     }
     return OK;
 }
@@ -636,36 +782,36 @@ void Wprint(char const *fmt, ...)
 void Eprint(char const *fmt, ...)
 {
     va_list argptr;
+    char const *fname;
 
     /* Check if more than one error msg. from this line */
     if (!FreshLine && !ShowAllErrors) return;
 
-    if (FreshLine && FileName) {
-	FreshLine = 0;
-	if (strcmp(FileName, "-")) {
-	    (void) fprintf(ErrFp, "%s(%d): ", FileName, LineNo);
-            if (print_callstack(ErrFp)) {
-                (void) fprintf(ErrFp, ": ");
-            }
-        } else {
-	    (void) fprintf(ErrFp, "-stdin-(%d): ", LineNo);
-            if (print_callstack(ErrFp)) {
-                (void) fprintf(ErrFp, ": ");
-            }
-        }
-	if (DebugFlag & DB_PRTLINE) OutputLine(ErrFp);
-    } else if (FileName) {
-	fprintf(ErrFp, "       ");
-        if (print_callstack(ErrFp)) {
-            (void) fprintf(ErrFp, ": ");
-        }
+    if (!FileName) {
+        return;
     }
 
+    if (strcmp(FileName, "-")) {
+        fname = FileName;
+    } else {
+        fname = "-stdin-";
+    }
+    if (FreshLine) {
+        (void) fprintf(ErrFp, "%s(%d): ", fname, LineNo);
+    } else {
+	fprintf(ErrFp, "       ");
+    }
     va_start(argptr, fmt);
     (void) vfprintf(ErrFp, fmt, argptr);
     (void) fputc('\n', ErrFp);
     va_end(argptr);
-    return;
+    if (print_callstack(ErrFp)) {
+        (void) fprintf(ErrFp, "\n");
+    }
+    if (FreshLine) {
+        if (DebugFlag & DB_PRTLINE) OutputLine(ErrFp);
+    }
+    FreshLine = 0;
 }
 
 /***************************************************************/
@@ -834,6 +980,7 @@ int DoIf(ParsePtr p)
 	    }
     }
 
+    IfLinenos[NumIfs] = LineNo;
     NumIfs++;
     IfFlags &= ~(IF_MASK << (2*NumIfs - 2));
     IfFlags |= syndrome << (2 * NumIfs - 2);
@@ -898,7 +1045,7 @@ int DoIfTrig(ParsePtr p)
     if ((size_t) NumIfs >= IF_NEST) return E_NESTED_IF;
     if (ShouldIgnoreLine()) syndrome = IF_TRUE | BEFORE_ELSE;
     else {
-	if ( (r=ParseRem(p, &trig, &tim, 1)) ) return r;
+	if ( (r=ParseRem(p, &trig, &tim)) ) return r;
 	if (trig.typ != NO_TYPE) return E_PARSE_ERR;
 	dse = ComputeTrigger(trig.scanfrom, &trig, &tim, &r, 1);
 	if (r) {
@@ -1016,6 +1163,12 @@ int DoDebug(ParsePtr p)
 	    else     DebugFlag &= ~DB_ECHO_LINE;
 	    break;
 
+        case 's':
+        case 'S':
+	    if (val) DebugFlag |=  DB_PARSE_EXPR;
+	    else     DebugFlag &= ~DB_PARSE_EXPR;
+	    break;
+
 	case 'x':
 	case 'X':
 	    if (val) DebugFlag |=  DB_PRTEXPR;
@@ -1081,7 +1234,7 @@ int DoBanner(ParsePtr p)
 	}
     }
     DBufFree(&Banner);
-    
+
     err = DBufPuts(&Banner, DBufValue(&buf));
     DBufFree(&buf);
     return err;
@@ -1093,7 +1246,6 @@ int DoBanner(ParsePtr p)
 /*                                                             */
 /*  Enable or disable the RUN command under program control    */
 /*                                                             */
-/*                                                             */
 /***************************************************************/
 int DoRun(ParsePtr p)
 {
@@ -1120,6 +1272,38 @@ int DoRun(ParsePtr p)
     return VerifyEoln(p);
 }
 
+/***************************************************************/
+/*                                                             */
+/*  DoExpr                                                     */
+/*                                                             */
+/*  Enable or disable expression evaluation                    */
+/*                                                             */
+/***************************************************************/
+int DoExpr(ParsePtr p)
+{
+    int r;
+
+    DynamicBuffer buf;
+    DBufInit(&buf);
+
+    if ( (r=ParseToken(p, &buf)) ) return r;
+
+/* Only allow EXPR ON in top-level script */
+    if (! StrCmpi(DBufValue(&buf), "ON")) {
+	if (TopLevel()) ExpressionEvaluationDisabled = 0;
+    }
+/* But allow EXPR OFF anywhere */
+    else if (! StrCmpi(DBufValue(&buf), "OFF"))
+        ExpressionEvaluationDisabled = 1;
+    else {
+	DBufFree(&buf);
+	return E_PARSE_ERR;
+    }
+    DBufFree(&buf);
+
+    return VerifyEoln(p);
+}
+
 /***************************************************************/
 /*                                                             */
 /*  DoFlush                                                    */
@@ -1666,7 +1850,9 @@ System(char const *cmd, int is_queued)
     pid_t kid;
     int fd;
     int status;
+    int do_exit = 0;
     if (is_queued && IsServerMode()) {
+        do_exit = 1;
         /* Server mode... redirect stdin and stdout to /dev/null */
         kid = fork();
         if (kid == (pid_t) -1) {
@@ -1688,14 +1874,17 @@ System(char const *cmd, int is_queued)
             }
         } else {
             /* In the parent */
-            while (waitpid(kid, &status, 0) != kid) {
-                continue;
-            }
+            while (waitpid(kid, &status, 0) != kid) /* continue */ ;
             return;
         }
     }
     /* This is the child process or original if we never forked */
     r = system(cmd);
+    if (do_exit) {
+        /* In the child process, so exit! */
+        exit(0);
+    }
+
     if (r == 0) {
         return;
     }
@@ -1720,3 +1909,40 @@ get_month_name(int mon)
     if (DynamicMonthName[mon]) return DynamicMonthName[mon];
     return MonthName[mon];
 }
+
+static int GetOnceDateFromFile(void)
+{
+    FILE *fp;
+
+    int once_date = 0;
+
+    fp = fopen(OnceFile, "r");
+    if (fp) {
+        if (fscanf(fp, "%d", &once_date) != 1) {
+            once_date = 0;
+        }
+        fclose(fp);
+    }
+    /* Save today to file */
+    fp = fopen(OnceFile, "w");
+    if (!fp) {
+        Wprint("Warning: Unable to save ONCE timestamp to %s: %s",
+               OnceFile, strerror(errno));
+        return once_date;
+    }
+    fprintf(fp, "%d\n# This is a timestamp file used by Remind to track ONCE reminders.\n# Do not edit or delete it.\n", DSEToday);
+    fclose(fp);
+    return once_date;
+}
+
+int GetOnceDate(void)
+{
+    ProcessedOnce = 1;
+    if (IgnoreOnce || !OnceFile || !*OnceFile) {
+        return FileAccessDate;
+    }
+    if (OnceDate < 0) {
+        OnceDate = GetOnceDateFromFile();
+    }
+    return OnceDate;
+}

src/md5.h

@@ -6,6 +6,10 @@
 
 #include "config.h"
 
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+typedef uint32_t uint32;
+#else
 #if SIZEOF_UNSIGNED_INT == 4
 typedef unsigned int uint32;
 #elif SIZEOF_UNSIGNED_LONG == 4
@@ -13,6 +17,7 @@ typedef unsigned long uint32;
 #else
 # error Could not find a 32-bit integer type
 #endif
+#endif
 
 struct MD5Context {
 	uint32 buf[4];
@@ -26,9 +31,4 @@ void MD5Update(struct MD5Context *context, unsigned char const *buf,
 void MD5Final(unsigned char digest[16], struct MD5Context *context);
 void MD5Transform(uint32 buf[4], uint32 const in[16]);
 
-/*
- * This is needed to make RSAREF happy on some MS-DOS compilers.
- */
-typedef struct MD5Context MD5_CTX;
-
 #endif /* !MD5_H */

src/moon.c

@@ -66,7 +66,6 @@
 #include <time.h>
 #include "types.h"
 #include "protos.h"
-#include "expr.h"
 #include "globals.h"
 #include "err.h"
 
@@ -101,21 +100,12 @@ static double phase (double, double *, double *, double *, double *, double *, d
 #define mmlong      64.975464      /* Moon's mean lonigitude at the epoch */
 #define mmlongp     349.383063	   /* Mean longitude of the perigee at the
 				      epoch */
-#define mlnode	    151.950429	   /* Mean longitude of the node at the
-				      epoch */
-#define minc        5.145396       /* Inclination of the Moon's orbit */
 #define mecc        0.054900       /* Eccentricity of the Moon's orbit */
 #define mangsiz     0.5181         /* Moon's angular size at distance a
 				      from Earth */
 #define msmax       384401.0       /* Semi-major axis of Moon's orbit in km */
-#define mparallax   0.9507	   /* Parallax at distance a from Earth */
 #define synmonth    29.53058868    /* Synodic month (new Moon to new Moon) */
-#define lunatbase   2423436.0      /* Base date for E. W. Brown's numbered
-				      series of lunations (1923 January 16) */
 
-/*  Properties of the Earth  */
-
-#define earthrad    6378.16	   /* Radius of Earth in kilometres */
 #ifdef PI
 #undef PI
 #endif
@@ -124,11 +114,6 @@ static double phase (double, double *, double *, double *, double *, double *, d
 
 /*  Handy mathematical functions  */
 
-#ifdef sgn
-#undef sgn
-#endif
-#define sgn(x) (((x) < 0) ? -1 : ((x) > 0 ? 1 : 0))	  /* Extract sign */
-
 #ifdef abs
 #undef abs
 #endif
@@ -144,7 +129,7 @@ static double phase (double, double *, double *, double *, double *, double *, d
 /*                                                             */
 /*  jdate                                                      */
 /*                                                             */
-/*  Convert a date and time to DSE day and fraction.        */
+/*  Convert a date and time to Julian day and fraction.        */
 /*                                                             */
 /***************************************************************/
 static long jdate(int y, int mon, int day)

src/omit.c

@@ -14,15 +14,14 @@
 #include "config.h"
 
 #include <stdio.h>
-
+#include <string.h>
 #include <stdlib.h>
 #include "types.h"
 #include "protos.h"
 #include "globals.h"
 #include "err.h"
-#include "expr.h"
 
-static int BexistsIntArray (int array[], int num, int key);
+static int BexistsIntArray (int const array[], int num, int key);
 static void InsertIntoSortedArray (int *array, int num, int key);
 
 /* Arrays for the global omits */
@@ -37,6 +36,8 @@ int NumFullOmits, NumPartialOmits;
 /* The structure for saving and restoring OMIT contexts */
 typedef struct omitcontext {
     struct omitcontext *next;
+    char *filename;
+    int lineno;
     int numfull, numpart;
     int *fullsave;
     int *partsave;
@@ -79,19 +80,25 @@ int DoClear(ParsePtr p)
 /*                                                             */
 /*  Free all the memory used by saved OMIT contexts.           */
 /*  As a side effect, return the number of OMIT contexts       */
-/*  destroyed.                                                 */
+/*  destroyed.  If print_unmatched is true, print an error for */
+/*  each undestroyed OMIT contect                              */
 /*                                                             */
 /***************************************************************/
-int DestroyOmitContexts(void)
+int DestroyOmitContexts(int print_unmatched)
 {
     OmitContext *c = SavedOmitContexts;
     OmitContext *d;
     int num = 0;
 
     while (c) {
+        if (print_unmatched) {
+            Wprint("Unmatched PUSH-OMIT-CONTEXT at %s(%d)",
+                   c->filename, c->lineno);
+        }
 	num++;
 	if (c->fullsave) free(c->fullsave);
 	if (c->partsave) free(c->partsave);
+        if (c->filename) free(c->filename);
 	d = c->next;
 	free(c);
 	c = d;
@@ -116,17 +123,31 @@ int PushOmitContext(ParsePtr p)
     context = NEW(OmitContext);
     if (!context) return E_NO_MEM;
 
+    if (FileName) {
+        context->filename = StrDup(FileName);
+    } else {
+        context->filename = StrDup("");
+    }
+    if (!context->filename) {
+        free(context);
+        return E_NO_MEM;
+    }
+    context->lineno = LineNo;
     context->numfull = NumFullOmits;
     context->numpart = NumPartialOmits;
     context->weekdaysave = WeekdayOmits;
     context->fullsave = malloc(NumFullOmits * sizeof(int));
     if (NumFullOmits && !context->fullsave) {
+        free(context->filename);
 	free(context);
 	return E_NO_MEM;
     }
     context->partsave = malloc(NumPartialOmits * sizeof(int));
     if (NumPartialOmits && !context->partsave) {
-	free(context->fullsave);
+        free(context->filename);
+	if (context->fullsave) {
+            free(context->fullsave);
+        }
 	free(context);
 	return E_NO_MEM;
     }
@@ -175,6 +196,7 @@ int PopOmitContext(ParsePtr p)
 /* Free memory used by the saved context */
     if (c->partsave) free(c->partsave);
     if (c->fullsave) free(c->fullsave);
+    if (c->filename) free(c->filename);
     free(c);
 
     return VerifyEoln(p);
@@ -251,7 +273,7 @@ int IsOmitted(int dse, int localomit, char const *omitfunc, int *omit)
 /*  element is found, 0 otherwise.                             */
 /*                                                             */
 /***************************************************************/
-static int BexistsIntArray(int array[], int num, int key)
+static int BexistsIntArray(int const array[], int num, int key)
 {
     int top=num-1, bot=0, mid;
 
@@ -379,6 +401,8 @@ int DoOmit(ParsePtr p)
 	default:
             if (tok.type == T_Until) {
                 Eprint("OMIT: UNTIL not allowed; did you mean THROUGH?");
+            } else if (tok.type == T_Illegal && tok.val < 0) {
+                Eprint("%s: `%s'", ErrMsg[-tok.val], DBufValue(&buf));
             } else {
                 Eprint("%s: `%s' (OMIT)", ErrMsg[E_UNKNOWN_TOKEN],
                        DBufValue(&buf));

src/protos.h

@@ -13,6 +13,18 @@
 /* Suppress unused variable warnings */
 #define UNUSED(x) (void) x
 
+#ifdef HAVE_STRDUP
+#define StrDup strdup
+#endif
+
+#ifdef HAVE_STRNCASECMP
+#define StrinCmp strncasecmp
+#endif
+
+#ifdef HAVE_STRCASECMP
+#define StrCmpi strcasecmp
+#endif
+
 /* Define a string assignment macro - be careful!!! */
 #define STRSET(x, str) { if (x) free(x); (x) = StrDup(str); }
 
@@ -31,22 +43,32 @@
 int CallUserFunc (char const *name, int nargs, ParsePtr p);
 int DoFset (ParsePtr p);
 int DoFunset (ParsePtr p);
+void UnsetAllUserFuncs(void);
 void ProduceCalendar (void);
 char const *SimpleTime (int tim);
 char const *CalendarTime (int tim, int duration);
 int DoRem (ParsePtr p);
 int DoFlush (ParsePtr p);
 void DoExit (ParsePtr p);
-int ParseRem (ParsePtr s, Trigger *trig, TimeTrig *tim, int save_in_globals);
+int ParseRem (ParsePtr s, Trigger *trig, TimeTrig *tim);
 int TriggerReminder (ParsePtr p, Trigger *t, TimeTrig *tim, int dse, int is_queued, DynamicBuffer *output);
 int ShouldTriggerReminder (Trigger *t, TimeTrig *tim, int dse, int *err);
 int DoSubst (ParsePtr p, DynamicBuffer *dbuf, Trigger *t, TimeTrig *tt, int dse, int mode);
 int DoSubstFromString (char const *source, DynamicBuffer *dbuf, int dse, int tim);
-int ParseLiteralDate (char const **s, int *dse, int *tim);
+int ParseLiteralDateOrTime (char const **s, int *dse, int *tim);
 int ParseLiteralTime (char const **s, int *tim);
+expr_node *parse_expression(char const **e, int *r, Var *locals);
+
+int evaluate_expression(expr_node *node, Value *locals, Value *ans, int *nonconst);
+int evaluate_expr_node(expr_node *node, Value *locals, Value *ans, int *nonconst);
+int truthy(Value const *v);
+
+void print_expr_tree(expr_node *node, FILE *fp);
+void unlimit_execution_time(void);
+expr_node *free_expr_tree(expr_node *node);
 int EvalExpr (char const **e, Value *v, ParsePtr p);
 int DoCoerce (char type, Value *v);
-void PrintValue  (Value *v, FILE *fp);
+char const *PrintValue  (Value *v, FILE *fp);
 int CopyValue (Value *dest, const Value *src);
 int ReadLine (void);
 int OpenFile (char const *fname);
@@ -65,8 +87,9 @@ int JulianToGregorianOffset(int y, int m);
 int ParseChar (ParsePtr p, int *err, int peek);
 int ParseToken (ParsePtr p, DynamicBuffer *dbuf);
 int ParseIdentifier (ParsePtr p, DynamicBuffer *dbuf);
+expr_node * ParseExpr(ParsePtr p, int *r);
+void print_expr_nodes_stats(void);
 int EvaluateExpr (ParsePtr p, Value *v);
-int Evaluate (char const **s, Var *locals, ParsePtr p);
 int FnPopValStack (Value *val);
 void Eprint (char const *fmt, ...);
 void Wprint (char const *fmt, ...);
@@ -86,10 +109,11 @@ int VerifyEoln (ParsePtr p);
 int DoDebug (ParsePtr p);
 int DoBanner (ParsePtr p);
 int DoRun (ParsePtr p);
+int DoExpr (ParsePtr p);
 int DoErrMsg (ParsePtr p);
 int ClearGlobalOmits (void);
 int DoClear (ParsePtr p);
-int DestroyOmitContexts (void);
+int DestroyOmitContexts (int print_unmatched);
 int PushOmitContext (ParsePtr p);
 int PopOmitContext (ParsePtr p);
 int IsOmitted (int dse, int localomit, char const *omitfunc, int *omit);
@@ -103,13 +127,26 @@ int ComputeTrigger (int today, Trigger *trig, TimeTrig *tim, int *err, int save_
 int ComputeTriggerNoAdjustDuration (int today, Trigger *trig, TimeTrig *tim, int *err, int save_in_globals, int duration_days);
 int AdjustTriggerForDuration(int today, int r, Trigger *trig, TimeTrig *tim, int save_in_globals);
 char *StrnCpy (char *dest, char const *source, int n);
+
+#ifndef HAVE_STRNCASECMP
 int StrinCmp (char const *s1, char const *s2, int n);
+#endif
+
+#ifndef HAVE_STRDUP
 char *StrDup (char const *s);
+#endif
+
+#ifndef HAVE_STRCASECMP
 int StrCmpi (char const *s1, char const *s2);
+#endif
+
+void strtolower(char *s);
+
 Var *FindVar (char const *str, int create);
+SysVar *FindSysVar (char const *name);
 int DeleteVar (char const *str);
-int SetVar (char const *str, Value *val);
-int GetVarValue (char const *str, Value *val, Var *locals, ParsePtr p);
+int SetVar (char const *str, Value const *val);
+int GetVarValue (char const *str, Value *val);
 int DoSet  (Parser *p);
 int DoUnset  (Parser *p);
 int DoDump (ParsePtr p);
@@ -122,10 +159,10 @@ int DoMsgCommand (char const *cmd, char const *msg, int is_queued);
 int ParseNonSpaceChar (ParsePtr p, int *err, int peek);
 unsigned int HashVal (char const *str);
 int DateOK (int y, int m, int d);
-Operator *FindOperator (char const *name, Operator where[], int num);
-BuiltinFunc *FindFunc (char const *name, BuiltinFunc where[], int num);
+BuiltinFunc *FindBuiltinFunc (char const *name);
 int InsertIntoSortBuffer (int dse, int tim, char const *body, int typ, int prio);
 void IssueSortedReminders (void);
+UserFunc *FindUserFunc(char const *name);
 int UserFuncExists (char const *fn);
 void DSEToHeb (int dse, int *hy, int *hm, int *hd);
 int HebNameToNum (char const *mname);
@@ -174,22 +211,42 @@ int AddGlobalOmit(int dse);
 void set_lat_and_long_from_components(void);
 void set_components_from_lat_and_long(void);
 
+void DebugExitFunc(void);
+
 int GetTerminalBackground(void);
 
 char const *get_day_name(int wkday);
 char const *get_month_name(int mon);
 
-void set_cloexec(int fd);
+void set_cloexec(FILE *fp);
 int push_call(char const *filename, char const *func, int lineno);
 void clear_callstack(void);
 int print_callstack(FILE *fp);
+int have_callstack(void);
 void pop_call(void);
 void FixSpecialType(Trigger *trig);
 void WriteJSONTrigger(Trigger const *t, int include_tags, int today);
 void WriteJSONTimeTrigger(TimeTrig const *tt);
+int GetOnceDate(void);
 #ifdef REM_USE_WCHAR
 #define _XOPEN_SOURCE 600
 #include <wctype.h>
 #include <wchar.h>
 void PutWideChar(wchar_t const wc, DynamicBuffer *output);
 #endif
+
+/* These functions are in utils.c and are used to detect overflow
+   in various arithmetic operators.  They have to be in separate
+   functions with extern linkage to defeat compiler optimizations
+   that would otherwise break the overflow checks. */
+extern int _private_mul_overflow(int a, int b);
+extern int _private_add_overflow(int a, int b);
+extern int _private_sub_overflow(int a, int b);
+
+/* Utility functions for dumping tokens */
+void print_sysvar_tokens(void);
+void print_builtinfunc_tokens(void);
+void print_remind_tokens(void);
+void get_var_hash_stats(int *total, int *maxlen, double *avglen);
+void get_userfunc_hash_stats(int *total, int *maxlen, double *avglen);
+

src/queue.c

@@ -34,7 +34,6 @@
 #include "globals.h"
 #include "err.h"
 #include "protos.h"
-#include "expr.h"
 
 #undef USE_INOTIFY
 #if defined(HAVE_SYS_INOTIFY_H) && defined(HAVE_INOTIFY_INIT1)
@@ -66,6 +65,7 @@ typedef struct queuedrem {
     char sched[VAR_NAME_LEN+1];
     Trigger t;
     TimeTrig tt;
+    int red, green, blue;
 } QueuedRem;
 
 /* Global variables */
@@ -79,7 +79,7 @@ static void CheckInitialFile (void);
 static int CalculateNextTime (QueuedRem *q);
 static QueuedRem *FindNextReminder (void);
 static int CalculateNextTimeUsingSched (QueuedRem *q);
-static void DaemonWait (struct timeval *sleep_tv);
+static void ServerWait (struct timeval *sleep_tv);
 static void reread (void);
 static void PrintQueue(void);
 static char const *QueueFilename(char const *fname);
@@ -153,6 +153,34 @@ static char const *QueueFilename(char const *fname)
     return elem->fname;
 }
 
+static void del_reminder(QueuedRem *qid)
+{
+    QueuedRem *q = QueueHead;
+    QueuedRem *next;
+    if (!q) {
+        return;
+    }
+    if (q == qid) {
+        QueueHead = q->next;
+        if (q->text) free((void *) q->text);
+        free(q);
+        return;
+    }
+    while(q->next) {
+        next = q->next;
+        if (q->next == qid) {
+            q->next = q->next->next;
+            if (next->text) free((void *) next->text);
+            free(next);
+            return;
+        }
+        q = q->next;
+    }
+}
+
+static void del_reminder_ul(unsigned long qid) {
+    del_reminder((QueuedRem *) qid);
+}
 
 /***************************************************************/
 /*                                                             */
@@ -178,6 +206,9 @@ int QueueReminder(ParsePtr p, Trigger *trig,
     if (!qelem) {
 	return E_NO_MEM;
     }
+    qelem->red = DefaultColorR;
+    qelem->green = DefaultColorG;
+    qelem->blue = DefaultColorB;
     qelem->text = StrDup(p->pos);  /* Guaranteed that parser is not nested. */
     if (!qelem->text) {
 	free(qelem);
@@ -277,6 +308,13 @@ void HandleQueuedReminders(void)
     struct timeval tv;
     struct timeval sleep_tv;
     struct sigaction sa;
+    char qid[64];
+
+    /* Disable any potential pending SIGALRMs */
+    alarm(0);
+
+    /* Un-limit execution time */
+    unlimit_execution_time();
 
     /* Turn off sorting -- otherwise, TriggerReminder has no effect! */
     SortByDate = 0;
@@ -321,16 +359,15 @@ void HandleQueuedReminders(void)
 
     if (ShouldFork || Daemon) {
         sa.sa_handler = SigIntHandler;
-        sa.sa_flags = 0;
+        sa.sa_flags = SA_RESTART;
+        sigemptyset(&sa.sa_mask);
         (void) sigaction(SIGINT, &sa, NULL);
         sa.sa_handler = SigContHandler;
         (void) sigaction(SIGCONT, &sa, NULL);
     }
 
 #ifdef USE_INOTIFY
-    if (IsServerMode()) {
-        watch_fd = setup_inotify_watch();
-    }
+    watch_fd = setup_inotify_watch();
 #endif
     /* Sit in a loop, issuing reminders when necessary */
     while(1) {
@@ -357,8 +394,6 @@ void HandleQueuedReminders(void)
                 SleepTime = 60*Daemon;
             }
 
-	    /* Wake up once a minute to recalibrate sleep time in
-	       case of laptop hibernation */
 	    if (IsServerMode()) {
 		/* Wake up on the next exact minute */
                 gettimeofday(&tv, NULL);
@@ -369,7 +404,9 @@ void HandleQueuedReminders(void)
                 } else {
                     sleep_tv.tv_usec = 0;
                 }
-		DaemonWait(&sleep_tv);
+		ServerWait(&sleep_tv);
+                /* A DEL command might have deleted our queued reminder! */
+                q = FindNextReminder();
 	    } else {
 		sleep(SleepTime);
             }
@@ -387,7 +424,9 @@ void HandleQueuedReminders(void)
 		}
 	    }
 
-	    if (Daemon > 0 && SleepTime) CheckInitialFile();
+	    if (Daemon > 0 && SleepTime) {
+                CheckInitialFile();
+            }
 
 	    if (Daemon && !q) {
 		if (IsServerMode()) {
@@ -417,6 +456,8 @@ void HandleQueuedReminders(void)
 	    if (IsServerMode() && q->typ != RUN_TYPE) {
                 if (DaemonJSON) {
                     printf("{\"response\":\"reminder\",");
+                    snprintf(qid, sizeof(qid), "%lx", (unsigned long) q);
+                    PrintJSONKeyPairString("qid", qid);
                     PrintJSONKeyPairString("ttime", SimpleTimeNoSpace(q->tt.ttime));
                     PrintJSONKeyPairString("now", SimpleTimeNoSpace(MinutesPastMidnight(1)));
                     PrintJSONKeyPairString("tags", DBufValue(&q->t.tags));
@@ -436,10 +477,15 @@ void HandleQueuedReminders(void)
 	       and trigtime() work correctly                             */
 	    SaveAllTriggerInfo(&(q->t), &(q->tt), DSEToday, q->tt.ttime, 1);
             FileName = (char *) q->fname;
+            DefaultColorR = q->red;
+            DefaultColorG = q->green;
+            DefaultColorB = q->blue;
+            /* Make a COPY of q->t because TriggerReminder can change q->t.typ */
+            Trigger tcopy = q->t;
             if (DaemonJSON) {
                 DynamicBuffer out;
                 DBufInit(&out);
-                (void) TriggerReminder(&p, &q->t, &q->tt, DSEToday, 1, &out);
+                (void) TriggerReminder(&p, &tcopy, &q->tt, DSEToday, 1, &out);
                 if (q->typ != RUN_TYPE) {
                     printf("\"body\":\"");
                     chomp(&out);
@@ -448,7 +494,7 @@ void HandleQueuedReminders(void)
                 }
                 DBufFree(&out);
             } else {
-                (void) TriggerReminder(&p, &q->t, &q->tt, DSEToday, 1, NULL);
+                (void) TriggerReminder(&p, &tcopy, &q->tt, DSEToday, 1, NULL);
             }
             FileName = NULL;
 	    if (IsServerMode() && !DaemonJSON && q->typ != RUN_TYPE) {
@@ -461,7 +507,6 @@ void HandleQueuedReminders(void)
 	/* Calculate the next trigger time */
 	q->tt.nexttime = CalculateNextTime(q);
 
-        /* If it's dequeued, update num_queued */
         if (q->tt.nexttime != NO_TIME) {
             /* If trigger time is way in the past because computer has been
                suspended or hibernated, remove from queue */
@@ -471,9 +516,13 @@ void HandleQueuedReminders(void)
             }
         }
 
-        /* If we have dequeued a reminder, update controlling process */
-        if (q->tt.nexttime == NO_TIME && IsServerMode()) {
-            print_num_queued();
+        /* If queued reminder has expired, actually remove it from queue
+           and update status */
+        if (q->tt.nexttime == NO_TIME) {
+            del_reminder(q);
+            if (IsServerMode()) {
+                print_num_queued();
+            }
         }
     }
     exit(EXIT_SUCCESS);
@@ -594,7 +643,25 @@ static void CheckInitialFile(void)
     /* If date has rolled around, or file has changed, spawn a new version. */
     time_t tim = FileModTime;
     int y, m, d;
+#ifdef USE_INOTIFY
+    char buf[sizeof(struct inotify_event) + NAME_MAX + 1];
+    int n;
+#endif
 
+#ifdef USE_INOTIFY
+    /* If there are any inotify events, reread */
+    if (watch_fd >= 0) {
+        while(1) {
+            n = read(watch_fd, buf, sizeof(buf));
+            if (n < 0 && errno == EINTR) continue;
+            if (n > 0) {
+                close(watch_fd);
+                reread();
+            }
+            break;
+        }
+    }
+#endif
     if (stat(InitialFile, &StatBuf) == 0) tim = StatBuf.st_mtime;
     if (tim != FileModTime ||
 	RealToday != SystemDate(&y, &m, &d)) {
@@ -676,6 +743,7 @@ json_queue(QueuedRem const *q)
         printf("{\"response\":\"queue\",\"queue\":");
     }
     printf("[");
+    char idbuf[64];
     while(q) {
 	if (q->tt.nexttime == NO_TIME) {
 	    q = q->next;
@@ -688,6 +756,8 @@ json_queue(QueuedRem const *q)
 	printf("{");
         WriteJSONTrigger(&(q->t), 1, DSEToday);
         WriteJSONTimeTrigger(&(q->tt));
+        snprintf(idbuf, sizeof(idbuf), "%lx", (unsigned long) q);
+        PrintJSONKeyPairString("qid", idbuf);
         PrintJSONKeyPairInt("rundisabled", q->RunDisabled);
         PrintJSONKeyPairInt("ntrig", q->ntrig);
         PrintJSONKeyPairString("filename", q->fname);
@@ -701,7 +771,10 @@ json_queue(QueuedRem const *q)
 	case PS_TYPE: PrintJSONKeyPairString("type", "PS_TYPE"); break;
 	case PSF_TYPE: PrintJSONKeyPairString("type", "PSF_TYPE"); break;
 	case MSF_TYPE: PrintJSONKeyPairString("type", "MSF_TYPE"); break;
-	case PASSTHRU_TYPE: PrintJSONKeyPairString("type", "PASSTHRU_TYPE"); break;
+	case PASSTHRU_TYPE:
+            PrintJSONKeyPairString("type", "PASSTHRU_TYPE");
+            PrintJSONKeyPairString("passthru", q->passthru);
+            break;
 	default: PrintJSONKeyPairString("type", "?"); break;
 	}
 
@@ -727,12 +800,12 @@ json_queue(QueuedRem const *q)
 
 /***************************************************************/
 /*                                                             */
-/*  DaemonWait                                                 */
+/*  ServerWait                                                 */
 /*                                                             */
-/*  Sleep or read command from stdin in "daemon -1" mode       */
+/*  Sleep or read command from stdin in server mode            */
 /*                                                             */
 /***************************************************************/
-static void DaemonWait(struct timeval *sleep_tv)
+static void ServerWait(struct timeval *sleep_tv)
 {
     fd_set readSet;
     int retval;
@@ -849,6 +922,13 @@ static void DaemonWait(struct timeval *sleep_tv)
         }
 	fflush(stdout);
 	reread();
+    } else if (!strncmp(cmdLine, "DEL ", 4)) {
+        unsigned long qid;
+        if (sscanf(cmdLine, "DEL %lx", &qid) == 1) {
+            del_reminder_ul(qid);
+        }
+        print_num_queued();
+        fflush(stdout);
     } else {
         if (DaemonJSON) {
             size_t l = strlen(cmdLine);
@@ -884,18 +964,27 @@ static void consume_inotify_events(int fd)
     int n;
 
     struct timespec sleeptime;
-    /* HACK: sleep for 0.2 seconds to let multiple events queue up so we
-       only do a single reread */
-    sleeptime.tv_sec = 0;
-    sleeptime.tv_nsec = 200000000;
-    nanosleep(&sleeptime, NULL);
 
+    int slept = 0;
     /* Consume all the inotify events */
     while(1) {
         n = read(fd, buf, sizeof(buf));
+        if (n > 0) {
+            /* Something new since we slept */
+            slept = 0;
+        }
         if (n < 0) {
             if (errno == EINTR) continue;
-            return;
+            if (slept) {
+                /* Nothing new since we slept */
+                return;
+            }
+            slept = 1;
+            /* HACK: sleep for 0.2 seconds to let multiple events queue up so we
+               only do a single reread */
+            sleeptime.tv_sec = 0;
+            sleeptime.tv_nsec = 200000000;
+            nanosleep(&sleeptime, NULL);
         }
     }
 }

src/sort.c

@@ -18,7 +18,6 @@
 #include <stdlib.h>
 #include "types.h"
 #include "protos.h"
-#include "expr.h"
 #include "globals.h"
 #include "err.h"
 

src/token.c

@@ -39,23 +39,24 @@ while (isdigit(*(string))) { \
 Token TokArray[] = {
     /* NAME          MINLEN      TYPE           VALUE */
     { "addomit",        7,      T_AddOmit,      0 },
-    { "after",		3,	T_Skip,	AFTER_SKIP },
+    { "after",		5,	T_Skip,	AFTER_SKIP },
     { "april",		3,	T_Month,	3 },
     { "at",		2,	T_At,		0 },
     { "august",		3,	T_Month,	7 },
     { "banner",		3,	T_Banner,	0 },
-    { "before",	        3,	T_Skip,	        BEFORE_SKIP },
+    { "before",	        6,	T_Skip,	        BEFORE_SKIP },
     { "cal",		3,	T_RemType,	CAL_TYPE },
     { "clear-omit-context", 5,   T_Clr,         0 },
     { "debug",          5,      T_Debug,        0 },
     { "december",	3,	T_Month,       11 },
     { "do",     	2,	T_IncludeR,	0 },
     { "dumpvars",       4,      T_Dumpvars,     0 },
-    { "duration",       3,      T_Duration,     0 },
+    { "duration",       8,      T_Duration,     0 },
     { "else",		4,	T_Else,	        0 },
     { "endif",		5,	T_EndIf,	0 },
     { "errmsg",         6,      T_ErrMsg,       0 },
     { "exit",		4,	T_Exit,		0 },
+    { "expr",           4,      T_Expr,         0 },
     { "february",	3,	T_Month,	1 },
     { "first",          5,      T_Ordinal,      0 },
     { "flush",		5,	T_Flush,	0 },
@@ -84,9 +85,9 @@ Token TokArray[] = {
     { "noqueue",        7,      T_NoQueue,      0 },
     { "november",	3,	T_Month,	10 },
     { "october",	3,	T_Month,	9 },
-    { "omit",		3,	T_Omit,		0 },
+    { "omit",		4,	T_Omit,		0 },
     { "omitfunc",       8,      T_OmitFunc,     0 },
-    { "once",		3,	T_Once,		0 },
+    { "once",		4,	T_Once,		0 },
     { "pop-omit-context", 3,	T_Pop,		0 },
     { "preserve",       8,      T_Preserve,     0 },
     { "priority",	8,	T_Priority,	0 },
@@ -102,7 +103,7 @@ Token TokArray[] = {
     { "second",         6,      T_Ordinal,      1 },
     { "september",	3,	T_Month,	8 },
     { "set",		3,	T_Set,		0 },
-    { "skip",		3,	T_Skip,	SKIP_SKIP },
+    { "skip",		4,	T_Skip,	SKIP_SKIP },
     { "special",        7,      T_RemType,      PASSTHRU_TYPE },
     { "sunday",		3,	T_WkDay,	6 },
     { "tag",            3,      T_Tag,          0 },
@@ -111,13 +112,28 @@ Token TokArray[] = {
     { "thursday",	3,	T_WkDay,	3 },
     { "tuesday",	3,	T_WkDay,	1 },
     { "unset",		5,	T_UnSet,	0 },
-    { "until",		3,	T_Until,	0 },
+    { "until",		5,	T_Until,	0 },
     { "warn",           4,      T_Warn,         0 },
     { "wednesday",	3,	T_WkDay,	2 }
 };
 
 static int TokStrCmp (Token const *t, char const *s);
 
+static void
+init_token(Token *t)
+{
+    t->name = NULL;
+    t->type = T_Illegal;
+    t->val = 0;
+}
+
+static void
+token_error(Token *t, int errcode)
+{
+    t->type = T_Illegal;
+    t->val = -errcode;
+}
+
 /***************************************************************/
 /*                                                             */
 /*  FindInitialToken                                           */
@@ -131,7 +147,7 @@ char const *FindInitialToken(Token *tok, char const *s)
     DynamicBuffer buf;
     DBufInit(&buf);
 
-    tok->type = T_Illegal;
+    init_token(tok);
 
     while (isempty(*s)) s++;
 
@@ -158,7 +174,7 @@ void FindToken(char const *s, Token *tok)
     int top, bot, mid, r, max;
     int l;
 
-    tok->type = T_Illegal;
+    init_token(tok);
     if (! *s) {
 	tok->type = T_Empty;
 	return;
@@ -232,9 +248,9 @@ void FindNumericToken(char const *s, Token *t)
     int mult = 1, hour, min;
     char const *s_orig = s;
     int ampm = 0;
+    int r;
 
-    t->type = T_Illegal;
-    t->val = 0;
+    init_token(t);
     if (isdigit(*s)) {
 	PARSENUM(t->val, s);
 
@@ -242,22 +258,37 @@ void FindNumericToken(char const *s, Token *t)
 	if (*s == '-' || *s == '/') {
 	    char const *p = s_orig;
 	    int dse, tim;
-	    if (ParseLiteralDate(&p, &dse, &tim) == OK) {
-		if (*p) return;
+            r = ParseLiteralDateOrTime(&p, &dse, &tim);
+	    if (r == OK) {
+		if (*p) {
+                    if (tim == NO_TIME) {
+                        t->val = -E_BAD_DATE;
+                    } else {
+                        t->val = -E_BAD_TIME;
+                    }
+                    return;
+                }
 		if (tim == NO_TIME) {
 		    t->type = T_Date;
 		    t->val = dse;
 		    return;
 		}
+                if (dse == NO_DATE) {
+                    t->type = T_Time;
+                    t->val = tim;
+                    return;
+                }
 		t->type = T_DateTime;
 		t->val = MINUTES_PER_DAY * dse + tim;
-	    }
+	    } else {
+                token_error(t, r);
+            }
 	    return;
 	}
 
 	/* If we hit a comma, swallow it.  This allows stuff
 	   like Jan 6, 1998 */
-	if (*s == ',') {
+	if (*s == ',' && *(s+1) == 0) {
 	    /* Classify the number we've got */
 	    if (t->val >= BASE && t->val <= BASE+YR_RANGE) t->type = T_Year;
 	    else if (t->val >= 1 && t->val <= 31) t->type = T_Day;
@@ -268,8 +299,16 @@ void FindNumericToken(char const *s, Token *t)
 	if (*s == ':' || *s == '.' || *s == TimeSep) {
 	    s++;
 	    hour = t->val;
+            if (!isdigit(*s)) {
+                token_error(t, E_BAD_TIME);
+                return;
+            }
 	    PARSENUM(min, s);
-	    if (min > 59) return; /* Illegal time */
+	    if (min > 59) {
+                /* Illegal time */
+                token_error(t, E_BAD_TIME);
+                return;
+            }
 	    /* Check for p[m] or a[m] */
 	    if (*s == 'A' || *s == 'a' || *s == 'P' || *s == 'p') {
 		ampm = tolower(*s);
@@ -278,9 +317,15 @@ void FindNumericToken(char const *s, Token *t)
 		    s++;
 		}
 	    }
-	    if (*s) return;  /* Illegal time */
+	    if (*s) {
+                token_error(t, E_BAD_TIME);
+                return;
+            }
 	    if (ampm) {
-		if (hour < 1 || hour > 12) return;
+		if (hour < 1 || hour > 12) {
+                    token_error(t, E_BAD_TIME);
+                    return;
+                }
 		if (ampm == 'a') {
 		    if (hour == 12) {
 			hour = 0;
@@ -302,45 +347,70 @@ void FindNumericToken(char const *s, Token *t)
 	}
 
 	/* If we hit a non-digit, error! */
-	if (*s) return;
+	if (*s) {
+            token_error(t, E_BAD_NUMBER);
+            return;
+        }
 
 	/* Classify the number we've got */
 	if (t->val >= BASE && t->val <= BASE+YR_RANGE) t->type = T_Year;
 	else if (t->val >= 1 && t->val <= 31) t->type = T_Day;
 	else t->type = T_Number;
 	return;
-    } else if (*s == '*') {
+    }
+
+    switch (*s) {
+    case '*':
 	s++;
 	PARSENUM(t->val, s);
-	if (*s) return;  /* Illegal token if followed by non-numeric char */
+	if (*s) {
+            /* Illegal token if followed by non-numeric char */
+            token_error(t, E_BAD_NUMBER);
+            return;
+        }
 	t->type = T_Rep;
 	return;
-    } else if (*s == '+') {
+
+    case '+':
 	s++;
 	if (*s == '+') { mult = -1; s++; }
 	PARSENUM(t->val, s);
-	if (*s) return;  /* Illegal token if followed by non-numeric char */
+	if (*s) {
+            /* Illegal token if followed by non-numeric char */
+            token_error(t, E_BAD_NUMBER);
+            return;
+        }
 	t->type = T_Delta;
 	t->val *= mult;
 	return;
-    } else if (*s == '-') {
+    case '-':
 	s++;
 	if (*s == '-') { mult = -1; s++; }
 	PARSENUM(t->val, s);
-	if (*s) return;  /* Illegal token if followed by non-numeric char */
+	if (*s) {
+            /* Illegal token if followed by non-numeric char */
+            token_error(t, E_BAD_NUMBER);
+            return;
+        }
 	t->type = T_Back;
 	t->val *= mult;
 	return;
-    } else if (*s == '~') {
+
+    case '~':
 	s++;
 	if (*s == '~') { mult = -1; s++; }
 	PARSENUM(t->val, s);
-	if (*s) return;  /* Illegal token if followed by non-numeric char */
+	if (*s) {
+            /* Illegal token if followed by non-numeric char */
+            token_error(t, E_BAD_NUMBER);
+            return;
+        }
 	t->type = T_BackAdj;
 	t->val *= mult;
 	return;
+
+    default: return;
     }
-    return;  /* Unknown token type */
 }
 
 
@@ -367,3 +437,43 @@ static int TokStrCmp(Token const *t, char const *s)
     if (!*s || (*s == ',' && !*(s+1))) return 0;
     return (*tk - tolower(*s));
 }
+
+static void
+print_token(Token *tok)
+{
+    if (tok->MinLen < (int) strlen(tok->name)) {
+        printf("%.*s\n", tok->MinLen, tok->name);
+    }
+    printf("%s\n", tok->name);
+}
+
+void
+print_remind_tokens(void)
+{
+    int i;
+    Token *tok;
+    int num = (int) (sizeof(TokArray) / sizeof(TokArray[0]));
+    printf("# Remind Tokens\n\n");
+    for (i=0; i<num; i++) {
+        tok = &TokArray[i];
+        if (tok->type != T_Month && tok->type != T_WkDay) {
+            print_token(tok);
+        }
+    }
+
+    printf("\n# Month Names\n\n");
+    for (i=0; i<num; i++) {
+        tok = &TokArray[i];
+        if (tok->type == T_Month) {
+            print_token(tok);
+        }
+    }
+
+    printf("\n# Weekdays\n\n");
+    for (i=0; i<num; i++) {
+        tok = &TokArray[i];
+        if (tok->type == T_WkDay) {
+            print_token(tok);
+        }
+    }
+}

src/trigger.c

@@ -15,7 +15,6 @@
 
 #include <stdlib.h>
 #include "types.h"
-#include "expr.h"
 #include "protos.h"
 #include "globals.h"
 #include "err.h"
@@ -244,6 +243,7 @@ static int NextSimpleTrig(int startdate, Trigger *trig, int *err)
 
     case GOT_WD+GOT_MON+GOT_YR:
 	if (y > trig->y || (y == trig->y && m > trig->m)) return -1;
+        /* cppcheck-suppress knownConditionTrueFalse */
 	if (trig->y > y || (trig->y == y && trig->m > m)) {
 	    j = DSE(trig->y, trig->m, 1);
             ADVANCE_TO_WD(j, trig->wd);

src/types.h

@@ -13,6 +13,22 @@
 #include <limits.h>
 #include "dynbuf.h"
 
+typedef struct udf_struct UserFunc;
+
+/* Define the types of values */
+#define ERR_TYPE       0
+#define INT_TYPE       1
+#define TIME_TYPE      2
+#define DATE_TYPE      3
+#define STR_TYPE       4
+#define DATETIME_TYPE  5
+#define SPECIAL_TYPE   6 /* Only for system variables */
+#define CONST_INT_TYPE 7 /* Only for system variables */
+
+#define BEG_OF_EXPR '['
+#define END_OF_EXPR ']'
+#define COMMA ','
+
 /* Values */
 typedef struct {
     char type;
@@ -22,29 +38,62 @@ typedef struct {
     } v;
 } Value;
 
-/* Define the type of operators */
-typedef struct {
-    char const *name;
-    char prec;
-    char type;
-    int (*func)(void);
-} Operator;
+/* New-style expr_node structure and constants */
+enum expr_node_type
+{
+    N_FREE = 0,
+    N_CONSTANT,
+    N_SHORT_STR,
+    N_LOCAL_VAR,
+    N_SHORT_VAR,
+    N_VARIABLE,
+    N_SHORT_SYSVAR,
+    N_SYSVAR,
+    N_BUILTIN_FUNC,
+    N_SHORT_USER_FUNC,
+    N_USER_FUNC,
+    N_OPERATOR,
+    N_ERROR = 32767,
+};
 
 /* Structure for passing in Nargs and out RetVal from functions */
 typedef struct {
     int nargs;
+    Value *args;
     Value retval;
 } func_info;
 
+/* Forward reference */
+typedef struct expr_node_struct expr_node;
+
 /* Define the type of user-functions */
 typedef struct {
     char const *name;
     char minargs;
     char maxargs;
     char is_constant;
+    /* Old-style function calling convention */
     int (*func)(func_info *);
+
+    /* New-style function calling convention */
+    int (*newfunc)(expr_node *node, Value *locals, Value *ans, int *nonconst);
 } BuiltinFunc;
 
+#define SHORT_NAME_BUF 16
+typedef struct expr_node_struct {
+    struct expr_node_struct *child;
+    struct expr_node_struct *sibling;
+    enum expr_node_type type;
+    int num_kids;
+    union {
+        Value value;
+        int arg;
+        BuiltinFunc *builtin_func;
+        char name[SHORT_NAME_BUF];
+        int (*operator_func) (struct expr_node_struct *node, Value *locals, Value *ans, int *nonconst);
+    } u;
+} expr_node;
+
 /* Define the structure of a variable */
 typedef struct var {
     struct var *next;
@@ -142,6 +191,8 @@ typedef Parser *ParsePtr;  /* Pointer to parser structure */
 #define MSF_TYPE 7
 #define PASSTHRU_TYPE 8
 
+/* For function arguments */
+#define NO_MAX 127
 
 /* DEFINES for debugging flags */
 #define DB_PRTLINE      1
@@ -150,6 +201,7 @@ typedef Parser *ParsePtr;  /* Pointer to parser structure */
 #define DB_DUMP_VARS    8
 #define DB_ECHO_LINE   16
 #define DB_TRACE_FILES 32
+#define DB_PARSE_EXPR  64
 
 /* Enumeration of the tokens */
 enum TokTypes
@@ -183,7 +235,8 @@ enum TokTypes
   T_MaybeUncomputable,
   T_Ordinal,
   T_In,
-  T_LastBack
+  T_LastBack,
+  T_Expr
 };
 
 /* The structure of a token */
@@ -243,3 +296,27 @@ typedef struct {
 #define TERMINAL_BACKGROUND_UNKNOWN -1
 #define TERMINAL_BACKGROUND_DARK    0
 #define TERMINAL_BACKGROUND_LIGHT   1
+
+typedef int (*SysVarFunc)(int, Value *);
+/* The structure of a system variable */
+typedef struct {
+    char const *name;
+    char modifiable;
+    int type;
+    void *value;
+    int min; /* Or const-value */
+    int max;
+} SysVar;
+
+/* Define the data structure used to hold a user-defined function */
+typedef struct udf_struct {
+    struct udf_struct *next;
+    char name[VAR_NAME_LEN+1];
+    expr_node *node;
+    char **args;
+    int nargs;
+    char const *filename;
+    int lineno;
+    int recurse_flag;
+} UserFunc;
+

src/userfns.c

@@ -16,43 +16,46 @@
 #include <stdio.h>
 #include <ctype.h>
 
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#include <string.h>
+
 #include <stdlib.h>
 #include "types.h"
 #include "globals.h"
 #include "protos.h"
 #include "err.h"
-#include "expr.h"
 
-#define FUNC_HASH_SIZE 32   /* Size of User-defined function hash table */
-
-/* Define the data structure used to hold a user-defined function */
-typedef struct udf_struct {
-    struct udf_struct *next;
-    char name[VAR_NAME_LEN+1];
-    char const *text;
-    Var *locals;
-    char IsActive;
-    int nargs;
-    char const *filename;
-    int lineno;
-} UserFunc;
+#define FUNC_HASH_SIZE 31   /* Size of User-defined function hash table */
 
 /* The hash table */
 static UserFunc *FuncHash[FUNC_HASH_SIZE];
 
-/* Access to built-in functions */
-extern int NumFuncs;
-extern BuiltinFunc Func[];
-
-/* We need access to the expression evaluation stack */
-extern Value ValStack[];
-extern int ValStackPtr;
-
 static void DestroyUserFunc (UserFunc *f);
 static void FUnset (char const *name);
 static void FSet (UserFunc *f);
-static int SetUpLocalVars (UserFunc *f);
-static void DestroyLocalVals (UserFunc *f);
+
+/***************************************************************/
+/*                                                             */
+/*  HashVal                                                    */
+/*  Given a string, compute the hash value.                    */
+/*                                                             */
+/***************************************************************/
+unsigned int HashVal_nocase(char const *str)
+{
+    unsigned int h = 0, high;
+    while(*str) {
+        h = (h << 4) + (unsigned int) *str;
+        str++;
+        high = h & 0xF0000000;
+        if (high) {
+            h ^= (high >> 24);
+        }
+        h &= ~high;
+    }
+    return h;
+}
 
 /***************************************************************/
 /*                                                             */
@@ -75,6 +78,7 @@ int DoFunset(ParsePtr p)
             break;
         }
         seen_one = 1;
+        strtolower(DBufValue(&buf));
         FUnset(DBufValue(&buf));
         DBufFree(&buf);
     }
@@ -93,8 +97,11 @@ int DoFset(ParsePtr p)
 {
     int r;
     int c;
+    int i;
     UserFunc *func;
-    Var *v;
+    UserFunc *existing;
+    Var *locals = NULL;
+    Var local_array[MAX_FUNC_ARGS];
     int orig_namelen;
 
     DynamicBuffer buf;
@@ -108,6 +115,25 @@ int DoFset(ParsePtr p)
     }
     orig_namelen = buf.len;
 
+    /* Convert to lower-case */
+    strtolower(DBufValue(&buf));
+
+    /* If the function exists and was defined at the same line of the same
+       file, do nothing */
+    existing = FindUserFunc(DBufValue(&buf));
+    if (existing) {
+        if (!strcmp(existing->filename, FileName) &&
+            strcmp(existing->filename, "[cmdline]") &&
+            existing->lineno == LineNo) {
+            DBufFree(&buf);
+            /* We already have it!  Our work here is done. */
+            return OK;
+        }
+        /* Warn about redefinition */
+        Wprint("Function %s redefined (previously defined at %s:%d)",
+               existing->name, existing->filename, existing->lineno);
+    }
+
     /* Should be followed by '(' */
     c = ParseNonSpaceChar(p, &r, 0);
     if (r) {
@@ -134,28 +160,26 @@ int DoFset(ParsePtr p)
         return E_NO_MEM;
     }
     func->lineno = LineNo;
+    func->recurse_flag = 0;
     StrnCpy(func->name, DBufValue(&buf), VAR_NAME_LEN);
     DBufFree(&buf);
     if (!Hush) {
-	if (FindFunc(func->name, Func, NumFuncs)) {
+	if (FindBuiltinFunc(func->name)) {
 	    Eprint("%s: `%s'", ErrMsg[E_REDEF_FUNC], func->name);
 	}
     }
-    func->locals = NULL;
-    func->text = NULL;
-    func->IsActive = 0;
+    func->node = NULL;
     func->nargs = 0;
+    func->args = NULL;
 
-    /* Get the local variables - we insert the local variables in REVERSE
-       order, but that's OK, because we pop them off the stack in reverse
-       order, too, so everything works out just fine. */
+    /* Get the local variables */
 
     c=ParseNonSpaceChar(p, &r, 1);
     if (r) return r;
     if (c == ')') {
 	(void) ParseNonSpaceChar(p, &r, 0);
-    }
-    else {
+    } else {
+        locals = local_array;
 	while(1) {
 	    if ( (r=ParseIdentifier(p, &buf)) ) return r;
 	    if (*DBufValue(&buf) == '$') {
@@ -163,19 +187,31 @@ int DoFset(ParsePtr p)
 		DestroyUserFunc(func);
 		return E_BAD_ID;
 	    }
-	    v = NEW(Var);
-	    if (!v) {
-		DBufFree(&buf);
-		DestroyUserFunc(func);
-		return E_NO_MEM;
-	    }
+            /* If we've already seen this local variable, error */
+            for (i=0; i<func->nargs; i++) {
+                if (!StrinCmp(DBufValue(&buf), local_array[i].name, VAR_NAME_LEN)) {
+                    DBufFree(&buf);
+                    DestroyUserFunc(func);
+                    return E_REPEATED_ARG;
+                }
+            }
+            i = func->nargs;
+            if (i >= MAX_FUNC_ARGS-1) {
+                DBufFree(&buf);
+                DestroyUserFunc(func);
+                return E_2MANY_ARGS;
+            }
+            local_array[i].v.type = ERR_TYPE;
+            StrnCpy(local_array[i].name, DBufValue(&buf), VAR_NAME_LEN);
+            local_array[i].next = &(local_array[i+1]);
+            local_array[i+1].next = NULL;
 	    func->nargs++;
-	    v->v.type = ERR_TYPE;
-	    StrnCpy(v->name, DBufValue(&buf), VAR_NAME_LEN);
-	    DBufFree(&buf);
-	    v->next = func->locals;
-	    func->locals = v;
 	    c = ParseNonSpaceChar(p, &r, 0);
+            if (r) {
+                DBufFree(&buf);
+                DestroyUserFunc(func);
+                return r;
+            }
 	    if (c == ')') break;
 	    else if (c != ',') {
 		DestroyUserFunc(func);
@@ -186,20 +222,50 @@ int DoFset(ParsePtr p)
 
     /* Allow an optional = sign: FSET f(x) = x*x */
     c = ParseNonSpaceChar(p, &r, 1);
+    if (r) {
+        DestroyUserFunc(func);
+        return r;
+    }
     if (c == '=') {
 	(void) ParseNonSpaceChar(p, &r, 0);
     }
-    /* Copy the text over */
     if (p->isnested) {
 	Eprint("%s", ErrMsg[E_CANTNEST_FDEF]);
 	DestroyUserFunc(func);
 	return E_PARSE_ERR;
     }
 
-    func->text = StrDup(p->pos);
-    if (!func->text) {
-	DestroyUserFunc(func);
-	return E_NO_MEM;
+    while(*(p->pos) && isspace(*(p->pos))) {
+        p->pos++;
+    }
+    if (!*(p->pos)) {
+        DestroyUserFunc(func);
+        return E_EOLN;
+    }
+    /* Parse the expression */
+    func->node = parse_expression(&(p->pos), &r, locals);
+    if (!func->node) {
+        DestroyUserFunc(func);
+        return r;
+    }
+
+    c = ParseNonSpaceChar(p, &r, 1);
+    if (c != 0 || r != 0) {
+        DestroyUserFunc(func);
+        if (r != 0) return r;
+        return E_EXPECTING_EOL;
+    }
+
+    /* Save the argument names */
+    if (func->nargs) {
+        func->args = calloc(func->nargs, sizeof(char *));
+        for (i=0; i<func->nargs; i++) {
+            func->args[i] = StrDup(local_array[i].name);
+            if (!func->args[i]) {
+                DestroyUserFunc(func);
+                return E_NO_MEM;
+            }
+        }
     }
 
     /* If an old definition of this function exists, destroy it */
@@ -223,23 +289,22 @@ int DoFset(ParsePtr p)
 /***************************************************************/
 static void DestroyUserFunc(UserFunc *f)
 {
-    Var *v, *prev;
-
-    /* Free the local variables first */
-    v = f->locals;
-    while(v) {
-	DestroyValue(v->v);
-	prev = v;
-	v = v->next;
-	free(prev);
-    }
+    int i;
 
     /* Free the function definition */
-    if (f->text) free( (char *) f->text);
+    if (f->node) free_expr_tree(f->node);
 
     /* Free the filename */
     if (f->filename) free( (char *) f->filename);
 
+    /* Free arg names */
+    if (f->args) {
+        for (i=0; i<f->nargs; i++) {
+            if (f->args[i]) free(f->args[i]);
+        }
+        free(f->args);
+    }
+
     /* Free the data structure itself */
     free(f);
 }
@@ -257,12 +322,12 @@ static void FUnset(char const *name)
     UserFunc *cur, *prev;
     int h;
 
-    h = HashVal(name) % FUNC_HASH_SIZE;
+    h = HashVal_nocase(name) % FUNC_HASH_SIZE;
 
     cur = FuncHash[h];
     prev = NULL;
     while(cur) {
-	if (! StrinCmp(name, cur->name, VAR_NAME_LEN)) break;
+	if (! strncmp(name, cur->name, VAR_NAME_LEN)) break;
 	prev = cur;
 	cur = cur->next;
     }
@@ -280,134 +345,22 @@ static void FUnset(char const *name)
 /***************************************************************/
 static void FSet(UserFunc *f)
 {
-    int h = HashVal(f->name) % FUNC_HASH_SIZE;
+    int h = HashVal_nocase(f->name) % FUNC_HASH_SIZE;
     f->next = FuncHash[h];
     FuncHash[h] = f;
 }
 
-/***************************************************************/
-/*                                                             */
-/*  CallUserFunc                                               */
-/*                                                             */
-/*  Call a user-defined function.                              */
-/*                                                             */
-/***************************************************************/
-int CallUserFunc(char const *name, int nargs, ParsePtr p)
+UserFunc *FindUserFunc(char const *name)
 {
-    UserFunc *f;
-    int h = HashVal(name) % FUNC_HASH_SIZE;
-    int i;
-    char const *s;
+   UserFunc *f;
+   int h = HashVal_nocase(name) % FUNC_HASH_SIZE;
 
-    /* Search for the function */
-    f = FuncHash[h];
-    while (f && StrinCmp(name, f->name, VAR_NAME_LEN)) f = f->next;
-    if (!f) {
-	Eprint("%s: `%s'", ErrMsg[E_UNDEF_FUNC], name);
-	return E_UNDEF_FUNC;
-    }
-    /* Debugging stuff */
-    if (DebugFlag & DB_PRTEXPR) {
-	fprintf(ErrFp, "%s %s(", ErrMsg[E_ENTER_FUN], f->name);
-	for (i=0; i<nargs; i++) {
-	    PrintValue(&ValStack[ValStackPtr - nargs + i], ErrFp);
-	    if (i<nargs-1) fprintf(ErrFp, ", ");
-	}
-	fprintf(ErrFp, ")\n");
-    }
-    /* Detect illegal recursive call */
-    if (f->IsActive) {
-	if (DebugFlag &DB_PRTEXPR) {
-	    fprintf(ErrFp, "%s %s() => ", ErrMsg[E_LEAVE_FUN], name);
-	    fprintf(ErrFp, "%s\n", ErrMsg[E_RECURSIVE]);
-	}
-	return E_RECURSIVE;
-    }
-
-    /* Check number of args */
-    if (nargs != f->nargs) {
-	if (DebugFlag &DB_PRTEXPR) {
-	    fprintf(ErrFp, "%s %s() => ", ErrMsg[E_LEAVE_FUN], name);
-	    fprintf(ErrFp, "%s\n",
-		    ErrMsg[(nargs < f->nargs) ? E_2FEW_ARGS : E_2MANY_ARGS]);
-	}
-	return (nargs < f->nargs) ? E_2FEW_ARGS : E_2MANY_ARGS;
-    }
-    /* Found the function - set up a local variable frame */
-    h = SetUpLocalVars(f);
-    if (h) {
-	if (DebugFlag &DB_PRTEXPR) {
-	    fprintf(ErrFp, "%s %s() => ", ErrMsg[E_LEAVE_FUN], name);
-	    fprintf(ErrFp, "%s\n", ErrMsg[h]);
-	}
-	return h;
-    }
-
-    /* Evaluate the expression */
-    f->IsActive = 1;
-    s = f->text;
-
-    /* Skip the opening bracket, if there's one */
-    while (isempty(*s)) s++;
-    if (*s == BEG_OF_EXPR) {
-        s++;
-    }
-    push_call(f->filename, f->name, f->lineno);
-    h = Evaluate(&s, f->locals, p);
-    if (h == OK) {
-        pop_call();
-    }
-    f->IsActive = 0;
-    DestroyLocalVals(f);
-    if (DebugFlag &DB_PRTEXPR) {
-	fprintf(ErrFp, "%s %s() => ", ErrMsg[E_LEAVE_FUN], name);
-	if (h) fprintf(ErrFp, "%s\n", ErrMsg[h]);
-	else {
-	    PrintValue(&ValStack[ValStackPtr-1], ErrFp);
-	    fprintf(ErrFp, "\n");
-	}
-    }
-    return h;
+   /* Search for the function */
+   f = FuncHash[h];
+   while (f && strncmp(name, f->name, VAR_NAME_LEN)) f = f->next;
+   return f;
 }
 
-/***************************************************************/
-/*                                                             */
-/*  SetUpLocalVars                                             */
-/*                                                             */
-/*  Set up the local variables from the stack frame.           */
-/*                                                             */
-/***************************************************************/
-static int SetUpLocalVars(UserFunc *f)
-{
-    int i, r;
-    Var *var;
-
-    for (i=0, var=f->locals; var && i<f->nargs; var=var->next, i++) {
-	if ( (r=FnPopValStack(&(var->v))) ) {
-	    DestroyLocalVals(f);
-	    return r;
-	}
-    }
-    return OK;
-}
-
-/***************************************************************/
-/*                                                             */
-/*  DestroyLocalVals                                           */
-/*                                                             */
-/*  Destroy the values of all local variables after evaluating */
-/*  the function.                                              */
-/*                                                             */
-/***************************************************************/
-static void DestroyLocalVals(UserFunc *f)
-{
-    Var *v = f->locals;
-
-    while(v) {
-	DestroyValue(v->v);
-	v = v->next;
-    }
-}
 /***************************************************************/
 /*                                                             */
 /*  UserFuncExists                                             */
@@ -418,12 +371,58 @@ static void DestroyLocalVals(UserFunc *f)
 /***************************************************************/
 int UserFuncExists(char const *fn)
 {
-    UserFunc *f;
-    int h = HashVal(fn) % FUNC_HASH_SIZE;
+    UserFunc *f = FindUserFunc(fn);
 
-    f = FuncHash[h];
-    while (f && StrinCmp(fn, f->name, VAR_NAME_LEN)) f = f->next;
     if (!f) return -1;
     else return f->nargs;
 }
 
+/***************************************************************/
+/*                                                             */
+/*  UnsetAllUserFuncs                                          */
+/*                                                             */
+/*  Call FUNSET on all user funcs.  Used with -ds flag to      */
+/*  ensure no expr_node memory leaks.                          */
+/*                                                             */
+/***************************************************************/
+void
+UnsetAllUserFuncs(void)
+{
+    UserFunc *f;
+    UserFunc *next;
+    int i;
+    for (i=0; i<FUNC_HASH_SIZE; i++) {
+        f = FuncHash[i];
+        while(f) {
+            next = f->next;
+            DestroyUserFunc(f);
+            f = next;
+        }
+        FuncHash[i] = NULL;
+    }
+}
+
+void
+get_userfunc_hash_stats(int *total, int *maxlen, double *avglen)
+{
+    int len;
+    int i;
+    UserFunc *f;
+
+    *maxlen = 0;
+    *total = 0;
+
+    for (i=0; i<FUNC_HASH_SIZE; i++) {
+        len = 0;
+        f = FuncHash[i];
+        while(f) {
+            len++;
+            (*total)++;
+            f = f->next;
+        }
+        if (len > *maxlen) {
+            *maxlen = len;
+        }
+    }
+    *avglen = (double) *total / (double) FUNC_HASH_SIZE;
+}

src/utils.c

@@ -17,6 +17,11 @@ static char const DontEscapeMe[] =
 #include "err.h"
 
 #include <string.h>
+
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+
 #include <stdio.h>
 #include <ctype.h>
 
@@ -46,6 +51,7 @@ char *StrnCpy(char *dest, char const *source, int n)
     return odest;
 }
 
+#ifndef HAVE_STRNCASECMP
 /***************************************************************/
 /*                                                             */
 /*  StrinCmp - compare strings, case-insensitive               */
@@ -64,6 +70,9 @@ int StrinCmp(char const *s1, char const *s2, int n)
     if (n) return (toupper(*s1) - toupper(*s2)); else return 0;
 }
 
+#endif
+
+#ifndef HAVE_STRDUP
 /***************************************************************/
 /*                                                             */
 /*  StrDup                                                     */
@@ -79,6 +88,9 @@ char *StrDup(char const *s)
     return ret;
 }
 
+#endif
+
+#ifndef HAVE_STRCASECMP
 /***************************************************************/
 /*                                                             */
 /*  StrCmpi                                                    */
@@ -98,6 +110,8 @@ int StrCmpi(char const *s1, char const *s2)
     return toupper(*s1) - toupper(*s2);
 }
 
+#endif
+
 /***************************************************************/
 /*                                                             */
 /*  DateOK                                                     */
@@ -116,6 +130,14 @@ int DateOK(int y, int m, int d)
     return 1;
 }
 
+void strtolower(char *s)
+{
+    while (*s) {
+        *s = tolower(*s);
+        s++;
+    }
+}
+
 /* Functions designed to defeat gcc optimizer */
 
 int _private_mul_overflow(int a, int b)
@@ -151,11 +173,15 @@ int _private_sub_overflow(int a, int b)
 int
 ShellEscape(char const *in, DynamicBuffer *out)
 {
-    while(*in) {
-        if (!strchr(DontEscapeMe, *in)) {
-            if (DBufPutc(out, '\\') != OK) return E_NO_MEM;
+    unsigned char const *i = (unsigned char const *) in;
+    while(*i) {
+        /* Don't escape chars with high bit set.  That will mangle UTF-8 */
+        if (! (*i & 0x80) ) {
+            if (!strchr(DontEscapeMe, *i)) {
+                if (DBufPutc(out, '\\') != OK) return E_NO_MEM;
+            }
         }
-        if (DBufPutc(out, *in++) != OK) return E_NO_MEM;
+        if (DBufPutc(out, *i++) != OK) return E_NO_MEM;
     }
     return OK;
 }
@@ -169,31 +195,33 @@ typedef struct cs_s {
 } cs;
 
 static cs *callstack = NULL;
+static cs *freecs = NULL;
 
 static void
 destroy_cs(cs *entry)
 {
-    if (entry->filename) free( (void *) entry->filename);
-    if (entry->func) free( (void *) entry->func);
-    free( (void *) entry);
+    entry->next = freecs;
+    freecs = entry;
 }
 
 
 int
 push_call(char const *filename, char const *func, int lineno)
 {
-    cs *entry = NEW(cs);
-    if (!entry) {
-        return E_NO_MEM;
+    cs *entry;
+    if (freecs) {
+        entry = freecs;
+        freecs = freecs->next;
+    } else {
+        entry = NEW(cs);
+        if (!entry) {
+            return E_NO_MEM;
+        }
     }
     entry->next = NULL;
-    entry->filename = StrDup(filename);
-    entry->func = StrDup(func);
+    entry->filename = filename;
+    entry->func = func;
     entry->lineno = lineno;
-    if (!entry->filename || !entry->func) {
-        destroy_cs(entry);
-        return E_NO_MEM;
-    }
     entry->next = callstack;
     callstack = entry;
     return OK;
@@ -215,11 +243,35 @@ clear_callstack(void)
 static void
 print_callstack_aux(FILE *fp, cs *entry)
 {
-    if (entry) {
-        print_callstack_aux(fp, entry->next);
-        fprintf(fp, "\n");
-        (void) fprintf(fp, "%s(%d): In function `%s'", entry->filename, entry->lineno, entry->func);
+    int i = 0;
+    char const *in = "In";
+    cs *prev = NULL;
+    while(entry) {
+        if (prev) {
+            in = "Called from";
+        }
+        if (!prev || strcmp(prev->func, entry->func) || strcmp(prev->filename, entry->filename) || prev->lineno != entry->lineno) {
+            if (prev) {
+                fprintf(fp, "\n");
+            }
+            (void) fprintf(fp, "    %s(%d): [#%d] %s function `%s'", entry->filename, entry->lineno, i, in, entry->func);
+        }
+        prev = entry;
+        entry = entry->next;
+        i++;
+        if (i > 10) {
+            break;
+        }
     }
+    if (entry) {
+        (void) fprintf(fp, "\n    [remaining call frames omitted]");
+    }
+}
+
+int
+have_callstack(void)
+{
+    return (callstack != NULL);
 }
 
 int

src/var.c

@@ -22,14 +22,13 @@
 #include <errno.h>
 #include <locale.h>
 #include "types.h"
-#include "expr.h"
 #include "globals.h"
 #include "protos.h"
 #include "err.h"
 #define UPPER(c) (islower(c) ? toupper(c) : c)
 
 /* The variable hash table */
-#define VAR_HASH_SIZE 64
+#define VAR_HASH_SIZE 67
 #define VARIABLE ErrMsg[E_VAR]
 #define VALUE    ErrMsg[E_VAL]
 #define UNDEF	 ErrMsg[E_UNDEF]
@@ -39,8 +38,6 @@ static int IntMax = INT_MAX;
 
 static Var *VHashTbl[VAR_HASH_SIZE];
 
-typedef int (*SysVarFunc)(int, Value *);
-
 static double
 strtod_in_c_locale(char const *str, char **endptr)
 {
@@ -167,6 +164,40 @@ static int latitude_func(int do_set, Value *val)
     return latitude_longitude_func(do_set, val, &Latitude, -90.0, 90.0);
 }
 
+static int oncefile_func(int do_set, Value *val)
+{
+    if (do_set) {
+        if (val->type != STR_TYPE) return E_BAD_TYPE;
+        if (! (*val->v.str) && (!OnceFile || !*OnceFile)) {
+            /* Trying to set already-empty string to empty string */
+            return OK;
+        }
+        if (OnceFile && !strcmp(OnceFile, val->v.str)) {
+            /* Trying to set to the exact same value */
+            return OK;
+        }
+
+        if (ProcessedOnce) {
+            Wprint("Not setting $OnceFile: Already processed a reminder with a ONCE clause");
+            return OK;
+        }
+        if (OnceFile) {
+            free( (void *) OnceFile);
+        }
+        OnceFile = StrDup(val->v.str);
+        if (!OnceFile) return E_NO_MEM;
+        return OK;
+    }
+    if (!OnceFile) {
+        val->v.str = StrDup("");
+    } else {
+        val->v.str = StrDup(OnceFile);
+    }
+    if (!val->v.str) return E_NO_MEM;
+    val->type = STR_TYPE;
+    return OK;
+
+}
 static int terminal_bg_func(int do_set, Value *val)
 {
     UNUSED(do_set);
@@ -175,6 +206,19 @@ static int terminal_bg_func(int do_set, Value *val)
     return OK;
 }
 
+static int trig_time_func(int do_set, Value *val)
+{
+    UNUSED(do_set);
+    if (LastTriggerTime != NO_TIME) {
+        val->type = TIME_TYPE;
+        val->v.val = LastTriggerTime;
+    } else {
+        val->type = INT_TYPE;
+        val->v.val = 0;
+    }
+    return OK;
+}
+
 static int trig_date_func(int do_set, Value *val)
 {
     UNUSED(do_set);
@@ -309,6 +353,29 @@ static int datetime_sep_func(int do_set, Value *val)
     return OK;
 }
 
+static int expr_time_limit_func(int do_set, Value *val)
+{
+    if (!do_set) {
+        val->type = INT_TYPE;
+        val->v.val = ExpressionEvaluationTimeLimit;
+        return OK;
+    }
+    if (val->type != INT_TYPE) return E_BAD_TYPE;
+    if (val->v.val < 0) return E_2LOW;
+
+    if (!TopLevel()) {
+        /* Ignore attempts to set from non-toplevel unless it's
+           lower than current value */
+        if (val->v.val == 0 ||
+            val->v.val >= ExpressionEvaluationTimeLimit) {
+            return OK;
+        }
+    }
+
+    ExpressionEvaluationTimeLimit = val->v.val;
+    return OK;
+}
+
 static int default_color_func(int do_set, Value *val)
 {
     int col_r, col_g, col_b;
@@ -394,17 +461,17 @@ static int time_sep_func(int do_set, Value *val)
 /***************************************************************/
 unsigned int HashVal(char const *str)
 {
-    register unsigned int i=0;
-    register unsigned int j=1;
-    register unsigned int len=0;
-
-    while(*str && len < VAR_NAME_LEN) {
-	i += j * (unsigned int) UPPER(*str);
-	str++;
-	len++;
-	j = 3-j;
+    unsigned int h = 0, high;
+    while(*str) {
+        h = (h << 4) + (unsigned int) UPPER(*str);
+        str++;
+        high = h & 0xF0000000;
+        if (high) {
+            h ^= (high >> 24);
+        }
+        h &= ~high;
     }
-    return i;
+    return h;
 }
 
 /***************************************************************/
@@ -477,10 +544,10 @@ int DeleteVar(char const *str)
 /*                                                             */
 /*  SetVar                                                     */
 /*                                                             */
-/*  Set the indicate variable to the specified value.          */
+/*  Set the indicated variable to the specified value.         */
 /*                                                             */
 /***************************************************************/
-int SetVar(char const *str, Value *val)
+int SetVar(char const *str, Value const *val)
 {
     Var *v = FindVar(str, 1);
 
@@ -498,24 +565,14 @@ 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, ParsePtr p)
+int GetVarValue(char const *str, Value *val)
 {
     Var *v;
 
-    /* Try searching local variables first */
-    v = locals;
-    while (v) {
-	if (! StrinCmp(str, v->name, VAR_NAME_LEN))
-	    return CopyValue(val, &v->v);
-	v = v->next;
-    }
-
-    /* Global variable... mark expression as non-constant */
-    if (p) p->nonconst_expr = 1;
     v=FindVar(str, 0);
 
     if (!v) {
-	Eprint("%s: %s", ErrMsg[E_NOSUCH_VAR], str);
+	Eprint("%s: `%s'", ErrMsg[E_NOSUCH_VAR], str);
 	return E_NOSUCH_VAR;
     }
     return CopyValue(val, &v->v);
@@ -530,7 +587,7 @@ int DoSet (Parser *p)
 {
     Value v;
     int r;
-
+    int ch;
     DynamicBuffer buf;
     DynamicBuffer buf2;
     DBufInit(&buf);
@@ -540,8 +597,16 @@ int DoSet (Parser *p)
     if (r) return r;
 
     /* Allow optional equals-sign:  SET var = value */
-    if (ParseNonSpaceChar(p, &r, 1) == '=') {
+    ch = ParseNonSpaceChar(p, &r, 1);
+    if (r) return r;
+    if (ch == '=') {
 	ParseNonSpaceChar(p, &r, 0);
+        if (r) return r;
+    }
+
+    if (p->isnested) {
+        Eprint("%s", "Do not use [] around expression in SET command");
+        return E_CANTNEST_FDEF;
     }
 
     r = EvaluateExpr(p, &v);
@@ -772,16 +837,6 @@ int DoPreserve (Parser *p)
 /*                                                             */
 /***************************************************************/
 
-/* The structure of a system variable */
-typedef struct {
-    char const *name;
-    char modifiable;
-    int type;
-    void *value;
-    int min; /* Or const-value */
-    int max;
-} SysVar;
-
 /* Macro to access "min" but as a constval.  Just to make source more
    readable */
 #define constval min
@@ -818,6 +873,7 @@ static SysVar SysVarArr[] = {
     {"DontTrigAts",    0,  INT_TYPE,     &DontIssueAts,        0,      0 },
     {"EndSent",        1,  STR_TYPE,     &EndSent,             0,      0 },
     {"EndSentIg",      1,  STR_TYPE,     &EndSentIg,           0,      0 },
+    {"ExpressionTimeLimit", 1, SPECIAL_TYPE, expr_time_limit_func, 0,  0 },
     {"February",       1,  STR_TYPE,     &DynamicMonthName[1], 0,      0 },
     {"FirstIndent",    1,  INT_TYPE,     &FirstIndent,         0,      132 },
     {"FoldYear",       1,  INT_TYPE,     &FoldYear,            0,      1 },
@@ -864,6 +920,7 @@ static SysVar SysVarArr[] = {
     {"NumTrig",        0,  INT_TYPE,     &NumTriggered,        0,      0 },
     {"October",        1,  STR_TYPE,     &DynamicMonthName[9], 0,      0 },
     {"On",             1,  STR_TYPE,     &DynamicOn,           0,      0 },
+    {"OnceFile",       1,  SPECIAL_TYPE, oncefile_func,        0,      0 },
     {"ParseUntriggered", 1, INT_TYPE,    &ParseUntriggered,    0,      1 },
     {"Pm",             1,  STR_TYPE,     &DynamicPm,           0,      0 },
     {"PrefixLineNo",   0,  INT_TYPE,     &DoPrefixLineNo,      0,      0 },
@@ -877,6 +934,7 @@ static SysVar SysVarArr[] = {
     {"SortByTime",     0,  INT_TYPE,     &SortByTime,          0,      0 },
     {"SubsIndent",     1,  INT_TYPE,     &SubsIndent,          0,      132 },
     {"Sunday",         1,  STR_TYPE,     &DynamicDayName[6],   0,      0 },
+    {"SuppressImplicitWarnings", 1, INT_TYPE, &SuppressImplicitRemWarnings, 0, 1},
     {"SuppressLRM",    1,  INT_TYPE,     &SuppressLRM,         0,      1 },
     {"SysInclude",     0,  STR_TYPE,     &SysDir,              0,      0 },
     {"T",              0,  SPECIAL_TYPE, trig_date_func,       0,      0 },
@@ -887,6 +945,7 @@ static SysVar SysVarArr[] = {
     {"Tm",             0,  SPECIAL_TYPE, trig_mon_func,        0,      0 },
     {"Today",          1,  STR_TYPE,     &DynamicToday,        0,      0 },
     {"Tomorrow",       1,  STR_TYPE,     &DynamicTomorrow,     0,      0 },
+    {"Tt",             0,  SPECIAL_TYPE, trig_time_func,       0,      0 },
     {"Tuesday",        1,  STR_TYPE,     &DynamicDayName[1],   0,      0 },
     {"Tw",             0,  SPECIAL_TYPE, trig_wday_func,       0,      0 },
     {"Ty",             0,  SPECIAL_TYPE, trig_year_func,       0,      0 },
@@ -905,7 +964,6 @@ static SysVar SysVarArr[] = {
 };
 
 #define NUMSYSVARS ( sizeof(SysVarArr) / sizeof(SysVar) )
-static SysVar *FindSysVar (char const *name);
 static void DumpSysVar (char const *name, const SysVar *v);
 /***************************************************************/
 /*                                                             */
@@ -1002,7 +1060,7 @@ int GetSysVar(char const *name, Value *val)
 /* Find a system var with specified name.                      */
 /*                                                             */
 /***************************************************************/
-static SysVar *FindSysVar(char const *name)
+SysVar *FindSysVar(char const *name)
 {
     int top=NUMSYSVARS-1, bottom=0;
     int mid=(top + bottom) / 2;
@@ -1062,7 +1120,7 @@ static void DumpSysVar(char const *name, const SysVar *v)
 	return;
     }
     if (name) strcat(buffer, name); else strcat(buffer, v->name);
-    fprintf(ErrFp, "%16s  ", buffer);
+    fprintf(ErrFp, "%25s  ", buffer);
     if (v) {
         if (v->type == CONST_INT_TYPE) {
             fprintf(ErrFp, "%d\n", v->constval);
@@ -1141,3 +1199,37 @@ set_components_from_lat_and_long(void)
     }
 }
 
+void
+print_sysvar_tokens(void)
+{
+    int i;
+    printf("\n# System Variables\n\n");
+    for (i=0; i< (int) NUMSYSVARS; i++) {
+        printf("$%s\n", SysVarArr[i].name);
+    }
+}
+
+void
+get_var_hash_stats(int *total, int *maxlen, double *avglen)
+{
+    int len;
+    int i;
+    Var *v;
+
+    *maxlen = 0;
+    *total = 0;
+
+    for (i=0; i<VAR_HASH_SIZE; i++) {
+        len = 0;
+        v = VHashTbl[i];
+        while(v) {
+            len++;
+            (*total)++;
+            v = v->next;
+        }
+        if (len > *maxlen) {
+            *maxlen = len;
+        }
+    }
+    *avglen = (double) *total / (double) VAR_HASH_SIZE;
+}

tests/ansicolors.rem

@@ -35,8 +35,8 @@ set a ansicolor(-1, 0, 0)
 set a ansicolor(42, 42, 256)
 set a ansicolor("foo")
 set a ansicolor("1 1")
-set a ansicolor("-1 -1 0");
-set a ansicolor("256 1 1");
+set a ansicolor("-1 -1 0")
+set a ansicolor("256 1 1")
 set a ansicolor(128, 128, 128, 2)
 set a ansicolor(128, 128, 128, -1)
 set a ansicolor(128, 128, 128, 0, 2)

tests/expr.rem

@@ -0,0 +1,55 @@
+debug +sx
+
+set a 1
+
+set a 0&&0
+set a 0&&1
+set a 1&&0
+set a 1&&1
+
+set a 0||0
+set a 0||1
+set a 1||0
+set a 1||1
+
+set a 2, 3
+
+set a iif(0, "foo", 0, "bar", 1, "blech", 0, "quux", 1, "borhy", "wacka")
+
+set a max(2*3, 4+5, min(6*7+8, 7+6*8))
+
+set a max(1,,1)
+
+set a 5%0
+
+set a 5/0
+
+set a -$IntMin
+
+set a $IntMin / -1
+set a $IntMin % -1
+
+set a (7+5)*(8+2)/(9-4)
+
+set a "foo" * 5
+set a "foo" / 5
+set a "foo" * "five"
+set a "foo" + "bar"
+set a '2024-01-02' + 3
+set a 3 + '2024-01-02'
+set a 11:33 + 75
+set a 75 + 11:33
+set a '2024-01-01@11:33' + 1500
+set a 1500 + '2024-01-01@11:33'
+
+set a '2024-03-02' - '2024-01-01'
+set a 15:00 - 14:44
+
+
+set a (1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+1))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
+
+set a (1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+(1+1)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))
+
+set a isany(1)
+set a isany(1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6)
+set a isany("foo", 1 + 1, 2:00 + 1, '2021-01-01' + 1, '2021-01-01@14:00' + 1, "f" + "oo", "fo" + "o")

tests/if1.rem

@@ -0,0 +1,4 @@
+BANNER %
+set $AddBlankLines 0
+IF 1
+INCLUDE [filedir()]/if2.rem

tests/if2.rem

@@ -0,0 +1,5 @@
+# Another unmatched IF
+IF 0
+ELSE
+IF 1
+

tests/queue1.rem

@@ -2,5 +2,5 @@ FSET msgprefix(x) "Priority: " + x + "; Filename: " + filename() + ":  "
 
 REM at 23:56 MSG foo
 REM PRIORITY 42 at 23:57 MSG bar
-REM PRIORITY 999 at 23:58 MSQ quux
+REM PRIORITY 999 at 23:58 MSG quux
 DO queue2.rem

tests/shade.rem

@@ -9,10 +9,10 @@ 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)]
+	REM [trigger(moondate(0))] SPECIAL MOON 0 -1 -1 [moontime(0)]
+	REM [trigger(moondate(1))] SPECIAL MOON 1 -1 -1 [moontime(1)]
+	REM [trigger(moondate(2))] SPECIAL MOON 2 -1 -1 [moontime(2)]
+	REM [trigger(moondate(3))] SPECIAL MOON 3 -1 -1 [moontime(3)]
 ENDIF
 
 REM 4 PS (First-Bit-Of-PS)