Update release notes for 06.02.06 release.

april-fools-announcements/2026-april-fool-announcement.txt

@@ -0,0 +1,40 @@
+Hi, all,
+
+As you know, Remind has been around for a long time---over 36 years.
+It's written in C, and I think it's high time to rewrite it in a
+memory-safe language.  After all, one CVE in 36 years is simply
+unacceptable.
+
+I was looking at writing it in Rust, but decided that Rust isn't quite
+mature enough yet.  So I decided to do it in FORTAN-77.  I chose
+FORTRAN-77 over the more obvious choice of COBOL because I studied
+engineering and not business.
+
+The rewrite will have the following implications:
+
+o Remind will henceforth be known as REMIND.
+
+o Sadly, I have to drop UTF-8 support.  Your choices are ASCII or
+  EBCDIC.
+
+o All statements must begin in column 7.  That means you might need to
+  edit your existing scripts to add 6 spaces at the beginning of the
+  line.
+
+o Variables whose names begin with "I" through "N" can only hold INTs.
+
+o I will be setting up a store on my web site to sell punched cards.
+  (Yes; those will be needed to run REMIND.)
+
+Now, I confess I haven't programmed in FORTRAN-77 in several decades,
+so I plan on using AI to assist me.  After all, it has been trained on
+the mountains of open-source FORTRAN-77 code on the Internet.
+
+I anticipate the rewrite will take about 9 years.  You can use this
+reminder to alert yourself to when it's ready:
+
+      REM 1 APRIL 2035 MSG REMIND IN FORTRAN-77 READY. STOP.
+
+Regards,
+
+Dianne.

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.72 for remind 06.02.05.
+# Generated by GNU Autoconf 2.72 for remind 06.02.06.
 #
 #
 # Copyright (C) 1992-1996, 1998-2017, 2020-2023 Free Software Foundation,
@@ -601,8 +601,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='remind'
 PACKAGE_TARNAME='remind'
-PACKAGE_VERSION='06.02.05'
+PACKAGE_VERSION='06.02.06'
-PACKAGE_STRING='remind 06.02.05'
+PACKAGE_STRING='remind 06.02.06'
 PACKAGE_BUGREPORT=''
 PACKAGE_URL='https://dianne.skoll.ca/projects/remind/'
 
@@ -1258,7 +1258,7 @@ 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 remind 06.02.05 to adapt to many kinds of systems.
+'configure' configures remind 06.02.06 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1320,7 +1320,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of remind 06.02.05:";;
+     short | recursive ) echo "Configuration of remind 06.02.06:";;
    esac
   cat <<\_ACEOF
 
@@ -1408,7 +1408,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-remind configure 06.02.05
+remind configure 06.02.06
 generated by GNU Autoconf 2.72
 
 Copyright (C) 2023 Free Software Foundation, Inc.
@@ -1871,7 +1871,7 @@ 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 remind $as_me 06.02.05, which was
+It was created by remind $as_me 06.02.06, which was
 generated by GNU Autoconf 2.72.  Invocation command line was
 
   $ $0$ac_configure_args_raw
@@ -4892,7 +4892,7 @@ 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 remind $as_me 06.02.05, which was
+This file was extended by remind $as_me 06.02.06, which was
 generated by GNU Autoconf 2.72.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -4957,7 +4957,7 @@ ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
-remind config.status 06.02.05
+remind config.status 06.02.06
 configured by $0, generated by GNU Autoconf 2.72,
   with options \\"\$ac_cs_config\\"
 

configure.ac

@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 
-AC_INIT(remind, 06.02.05, , , https://dianne.skoll.ca/projects/remind/)
+AC_INIT(remind, 06.02.06, , , https://dianne.skoll.ca/projects/remind/)
 AC_CONFIG_SRCDIR([src/queue.c])
 
 cat <<'EOF'

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

@@ -147,7 +147,7 @@
          "$May" "$MinsFromUTC" "$Minute" "$Monday" "$Mplu" "$NextMode"
          "$November" "$Now" "$NumFullOmits" "$NumPartialOmits" "$NumQueued"
          "$NumTrig" "$October" "$On" "$OnceFile" "$ParseUntriggered" "$Pm"
-         "$PrefixLineNo" "$PSCal" "$RunOff" "$Saturday" "$September" "$Shaded"
+         "$PrefixLineNo" "$PSCal" "$Repeat" "$RunOff" "$Saturday" "$September" "$Shaded"
          "$SimpleCal" "$SortByDate" "$SortByPrio" "$SortByTime" "$SubsIndent"
          "$Sunday" "$SuppressImplicitWarnings" "$SuppressLRM" "$SysInclude" "$T" "$Tb" "$Td"
          "$TerminalBackground" "$TerminalHyperlinks" "$Thursday" "$TimeSep" "$TimetIs64bit" "$Tm" "$Today" "$TodoFilter"

docs/WHATSNEW

@@ -1,5 +1,38 @@
 CHANGES TO REMIND
 
+* VERSION 06.02.06 - 2026-05-15
+
+- NEW FEATURE: remind: Add $Repeat read-only system variable which is
+  set to N if a command-line repeat of '*N' is supplied.
+
+- NEW FEATURE: remind: You can use a command-line argument of the form
+  '@trigger' to set the current date.  Remind evaluates the trigger
+  and sets today() to the result.  For example, the following command
+  runs Remind in Agenda Mode on the next upcoming Friday the 13th:
+
+      remind filename.rem '@13 SATISFY [$Tw == 5]'
+
+  and the next command runs it on 2026-11-13, the first Friday the 13th
+  on or after 2026-08-01:
+
+      remind filename.rem 2026-08-01 '@13 SATISFY [$Tw == 5]'
+
+- MINOR CHANGE: remind: When you supply the date on the command-line,
+  you can leave out the year, which defaults to the current year in
+  that case.
+
+- MINOR CHANGE: remind: When dumping variables, indicate preserved
+  variables with a <preserved> tag.
+
+- MINOR CHANGE: remind: Issue warnings if we try to FUNSET or
+  PUSH-FUNCS a built-in function.
+
+- BUG FIX: include/holidays/jewish.rem: Rearrange code to improve ICS
+  export.
+
+- BUG FIX: "make install": Remove old holidays files to avoid installation
+  failure because of change in symlink setup.
+
 * VERSION 06.02.05 - 2026-03-02
 
 - NEW FEATURE: rem2pdf: Add --avoid-overfull option.  This makes the

include/holidays/jewish.rem

@@ -1,5 +1,5 @@
 # Save variables and functions that we will mess with
-PUSH-VARS InIsrael IncludeIsraeliHolidays Reform IncludeOmer IncludeOmerCal SunCal ostart yz
+PUSH-VARS InIsrael IncludeIsraeliHolidays Reform IncludeOmer IncludeOmerCal SunCal ostart yz odays
 PUSH-FUNCS _h2 _h2I _YZ _PastSat _BackTwoSat
 
 SET InIsrael value("InIsrael", 0)
@@ -105,22 +105,22 @@ IF !Reform
 ENDIF
 
 IF IncludeOmer || IncludeOmerCal
-    SET ostart HEBDATE(16, "Nisan", TODAY()-50)
+    SET ostart HEBDATE(16, "Nisan", $U-50)
-    IF ostart <= TODAY() && (TODAY() - ostart < 49)
+    IF ostart <= $U && ($U - ostart < 49)
-        SET odays TODAY()-ostart+1
+        SET odays $U-ostart+1
         IF IncludeOmer
             IF odays < 7
-                REM MSG %"%"Today is the [ORD(odays)] day of the Omer.
+                REM [$U] MSG %"%"Today is the [ORD(odays)] day of the Omer.
             ELSE
                 IF !(odays % 7)
-                    REM MSG %"%"Today is the [ORD(odays)] day of the Omer, being [odays / 7] [PLURAL(odays/7, "week")] of the Omer.
+                    REM [$U] MSG %"%"Today is the [ORD(odays)] day of the Omer, being [odays / 7] [PLURAL(odays/7, "week")] of the Omer.
                 ELSE
-                    REM MSG %"%"Today is the [ORD(odays)] day of the Omer, being [odays/7] [PLURAL(odays/7, "week")] and [odays%7] [PLURAL(odays%7, "day")] of the Omer.
+                    REM [$U] MSG %"%"Today is the [ORD(odays)] day of the Omer, being [odays/7] [PLURAL(odays/7, "week")] and [odays%7] [PLURAL(odays%7, "day")] of the Omer.
                 ENDIF
             ENDIF
         ENDIF
         IF IncludeOmerCal
-            REM CAL [ORD(odays)] of Omer
+            REM [$U] CAL [ORD(odays)] of Omer
         ENDIF
     ENDIF
 ENDIF

include/lang/ca.rem

@@ -33,7 +33,7 @@ TRANSLATE "are" "són"
 TRANSLATE "were" "eren"
 TRANSLATE "done" "completada"
 
-FSET - subst_bx(a,d,t) iif(d==today()+2, "demà passat", d >= today(), "d'aquí " + (d-today()) + " dies", "fa " + (today()-d) + " dies")
+FSET - subst_bx(a,d,t) iif(d==$U+2, "demà passat", d >= $U, "d'aquí " + (d-$U) + " dies", "fa " + ($U-d) + " dies")
 
 # 1 d'abril vs 1 de maig.
 FSET - subst_sx(a,d,t) iif(isany(substr(mon(d), 1, 1), "a", "o") , "d'", "de")

include/lang/da.rem

@@ -58,12 +58,12 @@ FSET - subst_ampm(h) iif(h<5, " om natten", h < 12, " om formiddagen", h < 18, "
 FSET - subst_ordinal(d) "."
 FSET - ordx(n) n + "."
 
-FSET - subst_p(alt, d, t) iif(d==today()+1, "", "e")
+FSET - subst_p(alt, d, t) iif(d==$U+1, "", "e")
 FSET - zeropad(s, len) pad(s, "0", len)
 FSET - subst_a_alt(d) wkday(d) + ", den " + day(d) + ". " + mon(d) + " " + year(d)
 FSET - subst_ax(alt, d, t) iif(alt, subst_a_alt(d), $On + " " + subst_a_alt(d))
 
-FSET - subst_bx(a, d, t)  iif(d >= today(), "om " + (d-today()) + " dage", "for " + (today()-d) + " dage siden")
+FSET - subst_bx(a, d, t)  iif(d >= $U, "om " + (d-$U) + " dage", "for " + ($U-d) + " dage siden")
 
 FSET - subst_ex(alt, d, t) "den " + zeropad(day(d), 2) + $DateSep + zeropad(monnum(d), 2) + $DateSep + zeropad(year(d), 4)
 FSET - subst_fx(alt, d, t) "den " + zeropad(monnum(d), 2) + $DateSep + zeropad(day(d), 2) + $DateSep + zeropad(year(d), 4)

include/lang/de.rem

@@ -61,14 +61,14 @@ FSET - ordx(n) n + "."
 FSET - subst_a_alt(d)     wkday(d) + ", den " + day(d) + ". " + mon(d) + " " + year(d)
 FSET - subst_ax(alt, d, t) iif(alt, subst_a_alt(d), $On + " " + subst_a_alt(d))
 
-FSET - subst_bx(a, d, t)   iif(d >= today(), "in " + (d-today()) + " Tagen", "vor " + (today()-d) + " Tagen")
+FSET - subst_bx(a, d, t)   iif(d >= $U, "in " + (d-$U) + " Tagen", "vor " + ($U-d) + " Tagen")
 
 FSET - subst_g_alt(d)     wkday(d) + ", den " + day(d) + ". " + mon(d)
 FSET - subst_gx(alt, d, t) iif(alt, subst_g_alt(d), $On + " " + subst_g_alt(d))
 
 FSET - subst_ux(alt, d, t) subst_ax(alt, d, t)
 FSET - subst_vx(alt, d, t) subst_gx(alt, d, t)
-FSET - subst_p(alt, d, t) iif(d == today()+1, "", "en")
+FSET - subst_p(alt, d, t) iif(d == $U+1, "", "en")
 
 # Localization of various astronomical events
 

include/lang/es.rem

@@ -52,4 +52,4 @@ SET $And "y"
 SET $Hplu "s"
 SET $Mplu "s"
 
-FSET - subst_bx(a, d, t) iif(d >= today(), "dentro de " + (d-today()) + " días", "hace " + (today()-d) + " dias")
+FSET - subst_bx(a, d, t) iif(d >= $U, "dentro de " + (d-$U) + " días", "hace " + ($U-d) + " dias")

include/lang/fi.rem

@@ -62,7 +62,7 @@ FSET - ordx(d) d + subst_ordinal(d)
 FSET - subst_a_alt(d, o, p) wkday(d) + o + " " + day(d) + ". " + mon(d) + p + " " + year(d)
 FSET - subst_ax(a, d, t) iif(a, subst_a_alt(d, "", ""), subst_a_alt(d, $On, "ta"))
 
-FSET - subst_bx(a, d, t) iif(d >= today(), (d-today()) + " päivän kuluttua", (today()-d) + " päivää sitten")
+FSET - subst_bx(a, d, t) iif(d >= $U, (d-$U) + " päivän kuluttua", ($U-d) + " päivää sitten")
 FSET - subst_cx(a, d, t) iif(a, wkday(d), wkday(d) + $On)
 
 FSET - subst_ex(a, d, t) zeropad(day(d), 2) + $DateSep + zeropad(monnum(d), 2) + $DateSep + zeropad(year(d), 4)
@@ -81,7 +81,7 @@ FSET - subst_k_alt(d, o) wkday(d) + o + " " + mon(d) + "n " + day(d) + subst_ord
 FSET - subst_kx(a, d, t) iif(a, subst_k_alt(d, ""), subst_k_alt(d, $On))
 
 FSET - subst_lx(a, d, t) zeropad(year(d), 4) + $DateSep + zeropad(monnum(d), 2) + $DateSep + zeropad(day(d), 2)
-FSET - subst_p(a, d, t) iif(d==today()+1, "", "ä")
+FSET - subst_p(a, d, t) iif(d==$U+1, "", "ä")
 FSET - subst_qx(a, d, t) "n"
 
 FSET - subst_u_alt(d, o, p) wkday(d) + o + " " + day(d) + subst_ordinal(day(d)) + " " + mon(d) + p + " " + year(d)

include/lang/fr.rem

@@ -63,7 +63,7 @@ FSET - subst_1(alt, date, time) iif(time == now(), "maintenant", \
                                   time > now(), "dans " + subst_tdiff((time-now())/60, (time-now())%60), \
                                   "il y a " + subst_tdiff ((now()-time)/60, (now()-time)%60))
 
-FSET - subst_bx(alt, date, time) iif(date >= today(), "dans " + (date-today()) + " jours", "il y a " + (today()-date) + " jours")
+FSET - subst_bx(alt, date, time) iif(date >= $U, "dans " + (date-$U) + " jours", "il y a " + ($U-date) + " jours")
 FSET - subst_j_alt(date) wkday(date) + ", " + day(date) + subst_ordinal(day(date)) + " " + mon(date) + ", " + year(date)
 FSET - subst_jx(alt, date, time) iif(alt, subst_j_alt(date), $On + " " + subst_j_alt(date))
 

include/lang/gr.rem

@@ -54,7 +54,7 @@ SET $And "και"
 SET $Hplu ""
 SET $Mplu ""
 
-FSET - subst_bx(a, d, t) iif(d >= today(), "σε " + (d - today()) + " ημέρες", "πριν από " + (today()-d) + " ημέρες")
+FSET - subst_bx(a, d, t) iif(d >= $U, "σε " + (d - $U) + " ημέρες", "πριν από " + ($U-d) + " ημέρες")
 FSET - subst_ordinal(d)   "."
 FSET - ordx(d) d + "."
 FSET - subst_a_alt(d)     wkday(d) + ", " + day(d) + ". " + mon(d) + " " + year(d)

include/lang/is.rem

@@ -54,5 +54,5 @@ SET $And "og"
 SET $Hplu "ir"
 SET $Mplu "r"
 
-FSET - subst_bx(a, d, t) iif(d >= today(), "eftir " + (d - today()) + " daga", "fyrir " + (today()-d) + " dögum")
+FSET - subst_bx(a, d, t) iif(d >= $U, "eftir " + (d - $U) + " daga", "fyrir " + ($U-d) + " dögum")
-FSET - subst_p(a, d, t) iif(d == today()+1, "", "a")
+FSET - subst_p(a, d, t) iif(d == $U+1, "", "a")

include/lang/it.rem

@@ -53,9 +53,9 @@ SET $And "e"
 SET $Hplu "a"
 SET $Mplu "i"
 
-FSET - subst_bx(a, d, t) iif(d >= today(), "fra " + (d-today()) + " giorni", (today()-d) + " giorni fa")
+FSET - subst_bx(a, d, t) iif(d >= $U, "fra " + (d-$U) + " giorni", ($U-d) + " giorni fa")
-FSET - subst_p(a, d, t) iif(d==today()+1, "o", "i")
+FSET - subst_p(a, d, t) iif(d==$U+1, "o", "i")
-FSET - subst_q(a, d, t) iif(d==today()+1, "a", "e")
+FSET - subst_q(a, d, t) iif(d==$U+1, "a", "e")
 
 FSET - subst_ax(a, d, t) wkday(d) + ", " + day(d) + " " + mon(d) + " " + year(d)
 FSET - subst_jx(a, d, t) subst_ax(a, d, t)

include/lang/nl.rem

@@ -59,7 +59,7 @@ FSET - subst_1b(hdiff, mdiff) iif(hdiff==0, subst_minutes(mdiff), mdiff==0, subs
 FSET - subst_minutes(m) iif(m==1, "1 minuut", m + " minuten")
 FSET - subst_hours(h) iif(h==1, "1 uur", h + " uren")
 
-FSET - subst_bx(a, d, t) iif (d == today()+2, "overmorgen", d+2 == today(), "eergisteren", d >= today(), "over " + (d-today()) + " dagen", (today()-d) + " dagen geleden")
+FSET - subst_bx(a, d, t) iif (d == $U+2, "overmorgen", d+2 == $U, "eergisteren", d >= $U, "over " + (d-$U) + " dagen", ($U-d) + " dagen geleden")
 
 FSET - subst_s(a, d, t) iif(day(d) == 1 || day(d) == 8, "e", day(d) < 20, "de", "te")
 

include/lang/no.rem

@@ -53,7 +53,7 @@ SET $And "og"
 SET $Hplu "r"
 SET $Mplu "er"
 
-FSET - subst_bx(a, d, t) iif(d >= today(), "om " + (d-today()) + " dager", "for " + (today()-d) + " dager siden")
+FSET - subst_bx(a, d, t) iif(d >= $U, "om " + (d-$U) + " dager", "for " + ($U-d) + " dager siden")
 FSET - subst_ordinal(d) "."
 FSET - ordx(n) n + "."
 
@@ -63,4 +63,4 @@ FSET - subst_gx(a, d, t) iif(a, subst_g_alt(d), $On + " " + subst_g_alt(d))
 FSET - subst_g_alt(d) wkday(d) + ", den " + day(d) + ". " + mon(d)
 FSET - subst_ux(a, d, t) subst_ax(a, d, t)
 FSET - subst_vx(a, d, t) subst_gx(a, d, t)
-FSET - subst_p(a, d, t) iif(d==today()+1, "", "er")
+FSET - subst_p(a, d, t) iif(d==$U+1, "", "er")

include/lang/pl.rem

@@ -58,7 +58,7 @@ FSET - subst_ordinal(d) ""
 
 FSET - subst_a_alt(d) wkday(d) + ", " + day(d) + ". " + mon(d) + " " + year(d)
 FSET - subst_ax(a, d, t) iif(a, subst_a_alt(d), $On + " " + subst_a_alt(d))
-FSET - subst_bx(a, d, t) iif(d >= today(), "za " + (d-today()) + " dni", (today()-d) + " dni temu")
+FSET - subst_bx(a, d, t) iif(d >= $U, "za " + (d-$U) + " dni", ($U-d) + " dni temu")
 FSET - subst_g_alt(d) wkday(d) + ", " + day(d) + ". " + mon(d)
 FSET - subst_gx(a, d, t) iif(a, subst_g_alt(d), $On + " " + subst_g_alt(d))
 FSET - subst_ux(a, d, t) subst_ax(a, d, t)

include/lang/pt.rem

@@ -58,7 +58,7 @@ FSET - subst_ordinal(d) ""
 FSET - subst_on_wd(d) iif(wkdaynum(d) == 1 || wkdaynum(d) == 2, "no", "na")
 
 FSET - subst_a_alt(d) wkday(d) + ", " + day(d) + " de " + mon(d) + " de " + year(d)
-FSET - subst_bx(a, d, t) iif(d >= today(), "em " + (d-today()) + " dias", "há " + (today()-d) + " dias")
+FSET - subst_bx(a, d, t) iif(d >= $U, "em " + (d-$U) + " dias", "há " + ($U-d) + " dias")
 FSET - subst_c_alt(d) wkday(d)
 FSET - subst_g_alt(d) wkday(d) + ", " + day(d) + " " + mon(d)
 FSET - subst_ax(a, d, t) iif(a, subst_a_alt(d), subst_on_wd(d) + " " + subst_a_alt(d))

include/lang/ro.rem

@@ -53,7 +53,7 @@ SET $Mplu "e"
 SET $Hplu "e"
 SET $And "şi"
 
-FSET - subst_bx(a, d, t) iif(d >= today(), "peste " + (d-today()) + " zile", "acume " + (today()-d) + " zile")
+FSET - subst_bx(a, d, t) iif(d >= $U, "peste " + (d-$U) + " zile", "acume " + ($U-d) + " zile")
 
 FSET - subst_ampm(h) iif(h<4, " noaptea", h<12, " dimineaţa", h<18, " după-amiaza", " seara")
 FSET - subst_ordinal(d) ""
@@ -65,7 +65,7 @@ FSET - subst_jx(a, d, t) wkday(d) + ", " + mon(d) + " " + day(d) + ", " + year(d
 FSET - subst_kx(a, d, t) wkday(d) + ", " + mon(d) + " " + day(d)
 FSET - subst_ux(a, d, t) subst_ax(a, d, t)
 FSET - subst_vx(a, d, t) subst_gx(a, d, t)
-FSET - subst_p(a, d, t) iif(d==today()+1, "", "le")
+FSET - subst_p(a, d, t) iif(d==$U+1, "", "le")
 
 FSET - subst_1(a, d, t) iif(t==now(), $Now, t<now(), subst_1helper(now()-t, "acum "), subst_1helper(t-now(), "peste "))
 FSET - subst_1helper(diff, when) when + iif(diff%60==0, subst_1h(diff/60), diff/60==0, subst_1m(diff%60), subst_1h(diff/60) + " " + $And + " " + subst_1m(diff%60))

include/moonphases.rem

@@ -7,10 +7,10 @@ IF access($SysInclude + "/translations/" + _("LANGID") + "/moonphases.rem", "r")
 ENDIF
 
 IF $CalMode || $PsCal
-    REM [moondate(0)] INFO "Url: https://en.wikipedia.org/wiki/New_moon"    SPECIAL MOON 0 -1 -1 [moontime(0)]
+    REM NOQUEUE [moondatetime(0)] INFO "Url: https://en.wikipedia.org/wiki/New_moon"    SPECIAL MOON 0 -1 -1 %*3
-    REM [moondate(1)] INFO "Url: https://en.wikipedia.org/wiki/Lunar_phase" SPECIAL MOON 1 -1 -1 [moontime(1)]
+    REM NOQUEUE [moondatetime(1)] INFO "Url: https://en.wikipedia.org/wiki/Lunar_phase" SPECIAL MOON 1 -1 -1 %*3
-    REM [moondate(2)] INFO "Url: https://en.wikipedia.org/wiki/Full_moon"   SPECIAL MOON 2 -1 -1 [moontime(2)]
+    REM NOQUEUE [moondatetime(2)] INFO "Url: https://en.wikipedia.org/wiki/Full_moon"   SPECIAL MOON 2 -1 -1 %*3
-    REM [moondate(3)] INFO "Url: https://en.wikipedia.org/wiki/Lunar_phase" SPECIAL MOON 3 -1 -1 [moontime(3)]
+    REM NOQUEUE [moondatetime(3)] INFO "Url: https://en.wikipedia.org/wiki/Lunar_phase" SPECIAL MOON 3 -1 -1 %*3
 ELSE
     REM NOQUEUE INFO "Url: https://en.wikipedia.org/wiki/New_moon"    [moondatetime(0)] MSG %"%(New Moon) (%2)%" %! %b.
     REM NOQUEUE INFO "Url: https://en.wikipedia.org/wiki/Lunar_phase" [moondatetime(1)] MSG %"%(First Quarter) (%2)%" %! %b.

man/remind.1.in

@@ -4,7 +4,11 @@ remind \- a sophisticated reminder service
 .SH THE BOOK OF REMIND
 This man page is a good \fIreference\fR for Remind.  However, if you
 are a novice wishing to \fIlearn\fR Remind, I suggest downloading
-"The Book of Remind" from the Remind home page at https://dianne.skoll.ca/projects/remind/
+"The Book of Remind" from the Remind home page at the following URL:
+.PP
+.nf
+        https://dianne.skoll.ca/projects/remind/
+.fi
 .SH SYNOPSIS
 .B remind [\fIoptions\fR] \fIfilename\fR [\fIdate\fR] [\fI*rep\fR] [\fItime\fR]
 .SH DESCRIPTION
@@ -515,10 +519,12 @@ In other words, \fB\-i\fIvar\fR is exactly the same as \fB\-i\fIvar\fR\fB=\fR0.
 Allows you to define a function on the command line.
 .PP
 If you supply a \fIdate\fR on the command line, it must consist of
-\fIday month year\fR, where \fIday\fR is the day of the month,
+[\fIday\fR] \fImonth\fR [\fIyear\fR], where \fIday\fR is the day of the month,
 \fImonth\fR is at least the first three letters of the English name
 of the month, and \fIyear\fR is a year (all 4 digits) from 1990 to
 about 2075.  You can leave out the \fIday\fR, which then defaults to 1.
+If you leave out the year, then it defaults to the current year.  You
+cannot leave out the \fImonth\fR.
 .PP
 If you do supply a \fIdate\fR on the command line, then \fBRemind\fR
 uses it, rather than the actual system date, as its notion of "today."
@@ -534,6 +540,28 @@ If you would rather specify the date more succinctly, you can supply
 it as YYYY-MM-DD or YYYY/MM/DD.  You can even supply a date and
 time on the command line as one argument: YYYY-MM-DD@HH:MM.
 .PP
+You can also specify the date as a \fItrigger\fR by prefixing it
+with the at symbol, "@".  You might need to quote the argument.  In this
+case, Remind evaluates everything after the "@" as a trigger and the
+resulting trigger date is used as the effective date.  For example,
+if you want to see what reminders will trigger on the next Friday
+the 13th, you could use this:
+.PP
+.nf
+    remind .reminders '@13 SATISFY [$Tw == 5]'
+.fi
+.PP
+You can also specify the date directly \fIand\fR use an "@" trigger
+argument; in this case, Remind uses the specified date as the starting
+point for the trigger calculation.  As an example:
+.PP
+.nf
+    remind .reminders 2026-07-01 '@13 SATISFY [$Tw == 5]'
+.fi
+.PP
+will set \fBRemind\fR's notion of "today" to 2026-11-13 because that
+is the first Friday the 13th on or after 2026-07-01.
+.PP
 In addition, you can supply a \fIrepeat\fR parameter, which has the
 form *\fIrep\fR.  This causes \fBRemind\fR to be run \fIrep\fR times,
 with the date incrementing on each iteration.  You may have to enclose
@@ -3363,6 +3391,10 @@ If non-zero, then the \fB\-l\fR option was supplied on the command line.
 .B $PSCal (read-only)
 If non-zero, then the \fB\-p\fR option was supplied on the command line.
 .TP
+.B $Repeat (read-only)
+If this variable holds a non-zero value \fIn\fR, then a command-line
+argument of *\fIn\fR was supplied to specify repeated runs of \fBRemind\fR..
+.TP
 .B $RunOff (read-only)
 If non-zero, the \fBRUN\fR directives are disabled.
 .TP
@@ -6167,10 +6199,11 @@ For example, suppose you set the variables "me" and "hostname" as follows:
 .fi
 .PP
 Normally, \fBRemind\fR clears all variables between iterations in calendar
-mode.  However, if certain variables are slow to compute, and will
+mode and between iterations if a '*N' parameter was supplied on the
+command-line.  However, if certain variables are slow to compute, and will
 not change between iterations, you can "preserve" their values with the
 \fBPRESERVE\fR command.  Also, since function definitions are preserved
-between calendar iterations, there is no need to redefine them on each
+between iterations, there is no need to redefine them on each
 iteration.  Thus, you could use the following sequence:
 .PP
 .nf

src/Makefile.in

@@ -80,6 +80,8 @@ install: all
 		$(INSTALL_DATA) $$man $(DESTDIR)$(mandir)/man1 || exit 1; \
 	done
 	-mkdir -p $(DESTDIR)$(datarootdir)/remind || true
+        # Avoid problems with symlinks under holidays/
+	-rm -rf $(DESTDIR)$(datarootdir)/remind/holidays > /dev/null 2>&1 || true
 	cp -R ../include/* $(DESTDIR)$(datarootdir)/remind
 	chmod -R a+rX $(DESTDIR)$(datarootdir)/remind
 	-mkdir -p $(DESTDIR)$(prefix)/share/pixmaps

src/err.h

@@ -68,7 +68,7 @@
                                    as a REM statement, also. */
 #define E_CANT_MODIFY        45
 #define E_MKTIME_PROBLEM     46
-#define E_REDEF_FUNC         47
+#define E_REDEF_BUILTIN_FUNC 47
 #define E_CANTNEST_FDEF      48
 #define E_REP_FULSPEC        49
 #define E_YR_TWICE           50
@@ -139,7 +139,8 @@
 #define E_EXPECTING_EOXPR   115
 #define E_EXPECTING_ATOM    116
 #define E_BAD_VAL_FOR_SYSVAR 117
-
+#define E_UNSET_BUILTIN_FUNC 118
+#define E_PUSH_BUILTIN_FUNC  119
 #ifdef MK_GLOBALS
 #undef EXTERN
 #define EXTERN
@@ -203,7 +204,7 @@ EXTERN char *ErrMsg[]
 /* 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_REDEF_BUILTIN_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",
@@ -274,6 +275,8 @@ EXTERN char *ErrMsg[]
 /* E_EXPECTING_EOXPR */    "Expecting operator or end-of-expression",
 /* E_EXPECTING_ATOM */     "Expecting constant, variable, function call or (expression)",
 /* E_BAD_VAL_FOR_SYSVAR */ "Invalid value for system variable",
+/* E_UNSET_BUILTIN_FUNC */ "Attempt to unset built-in function",
+/* E_PUSH_BUILTIN_FUNC */  "Attempt to PUSH built-in function",
 }
 #endif /* MK_GLOBALS */
 ;

src/funcs.c

@@ -4727,6 +4727,7 @@ FEvalTrig(func_info *info)
         return r;
     }
     if (trig.tz != NULL && tim.ttime == NO_TIME) {
+        DestroyParser(&p);
         FreeTrig(&trig);
         return E_TZ_NO_AT;
     }
@@ -4753,7 +4754,10 @@ FEvalTrig(func_info *info)
         dse = -1;
     }
     DestroyParser(&p);
-    if (r) return r;
+    if (r) {
+        FreeTrig(&trig);
+        return r;
+    }
     if (dse < 0) {
         RetVal.type = INT_TYPE;
         RETVAL = dse;

src/globals.h

@@ -74,6 +74,7 @@ EXTERN  INIT(   int     DoPrefixLineNo, 0);
 EXTERN  INIT(   int     MondayFirst, 0);
 EXTERN  INIT(   int     AddBlankLines, 1);
 EXTERN  INIT(   int     Iterations, 1);
+EXTERN  INIT(   int     OrigIterations, 0);
 EXTERN  INIT(   int     PsCal, 0);
 EXTERN  INIT(   int     CalWidth, 80);
 EXTERN  INIT(   int     CalWeeks, 0);

src/init.c

@@ -54,6 +54,9 @@ static int tty_init(int fd);
 static void tty_raw(int fd);
 static void tty_reset(int fd);
 
+static int GetInitDateFromTrigger(char const *s, int *y, int *m, int *d, int *systime);
+static void SetTodayFromCmdlineArgs(int dse, int y, int m, int d);
+
 static void ProcessLongOption(char const *arg);
 /***************************************************************
  *
@@ -183,6 +186,7 @@ void InitRemind(int argc, char const *argv[])
     int x;
     int dse;
     int ttyfd;
+    int r;
 
     /* Make sure remind is not installed set-uid or set-gid */
     if (getgid() != getegid() ||
@@ -740,10 +744,27 @@ void InitRemind(int argc, char const *argv[])
     if (i < argc) {
         while (i < argc) {
             arg = argv[i++];
+            /* If it begins with '@' then it's a trigger spec */
+            if (*arg == '@') {
+                SetTodayFromCmdlineArgs(dse, y, m, d);
+                r = GetInitDateFromTrigger(arg+1, &y, &m, &d, &SysTime);
+                if (r == OK) {
+                    dse = NO_DATE; /* Date is in y/m/d */
+                    if (SysTime != -1) {
+                        DontQueue = 1;
+                        Daemon = 0;
+                        LocalSysTime = SysTime;
+                    }
+                } else {
+                    fprintf(stderr, "Could not evaluate command-line trigger: %s\n", GetErr(r));
+                    exit(1);
+                }
+                continue;
+            }
             FindToken(arg, &tok);
             switch (tok.type) {
             case T_Time:
-                if (SysTime != -1L) Usage();
+                if (SysTime != -1) Usage();
                 else {
                     SysTime = (long) tok.val * 60L;
                     LocalSysTime = SysTime;
@@ -753,7 +774,7 @@ void InitRemind(int argc, char const *argv[])
                 break;
 
             case T_DateTime:
-                if (SysTime != -1L) Usage();
+                if (SysTime != -1) Usage();
                 if (m != NO_MON || d != NO_DAY || y != NO_YR || dse != NO_DATE) Usage();
                 SysTime = (tok.val % MINUTES_PER_DAY) * 60;
                 LocalSysTime = SysTime;
@@ -798,42 +819,13 @@ void InitRemind(int argc, char const *argv[])
 
         if (rep > 0) {
             Iterations = rep;
+            OrigIterations = rep;
             IgnoreOnce = 1;
             DontQueue = 1;
             Daemon = 0;
         }
 
-        if (dse != NO_DATE) {
+        SetTodayFromCmdlineArgs(dse, y, m, d);
-            FromDSE(dse, &y, &m, &d);
-        }
-/* Must supply date in the form:  day, mon, yr OR mon, yr */
-        if (m != NO_MON || y != NO_YR || d != NO_DAY) {
-            if (m == NO_MON || y == NO_YR) {
-                if (rep == NO_REP) Usage();
-                else if (m != NO_MON || y != NO_YR) Usage();
-                else {
-                    m = CurMon;
-                    y = CurYear;
-                    if (d == NO_DAY) d = CurDay;
-                }
-            }
-            if (d == NO_DAY) d=1;
-            if (d > DaysInMonth(m, y)) {
-                fprintf(ErrFp, "%s", BadDate);
-                Usage();
-            }
-            DSEToday = DSE(y, m, d);
-            if (DSEToday == -1) {
-                fprintf(ErrFp, "%s", BadDate);
-                Usage();
-            }
-            LocalDSEToday = DSEToday;
-            CurYear = y;
-            CurMon = m;
-            CurDay = d;
-            if (DSEToday != RealToday) IgnoreOnce = 1;
-        }
-
     }
 
     /* JSON mode turns off sorting */
@@ -1401,3 +1393,101 @@ GetTerminalBackground(void)
     }
     return TerminalBackground;
 }
+
+static int
+GetInitDateFromTrigger(char const *s, int *y, int *m, int *d, int *systime)
+{
+    Parser p;
+    Trigger trig;
+    TimeTrig tim;
+    int dse;
+    int r;
+
+    CreateParser(s, &p);
+    r = ParseRem(&p, &trig, &tim);
+    if (r) {
+        DestroyParser(&p);
+        return r;
+    }
+    if (trig.tz != NULL && tim.ttime == NO_TIME) {
+        DestroyParser(&p);
+        FreeTrig(&trig);
+        return E_TZ_NO_AT;
+    }
+    if (trig.typ == SAT_TYPE) {
+        EnterTimezone(trig.tz);
+        r=DoSatRemind(&trig, &tim, &p);
+        ExitTimezone(trig.tz);
+        if (r) {
+            DestroyParser(&p);
+            FreeTrig(&trig);
+            return r;
+        }
+        dse = LastTriggerDate;
+    } else if (trig.typ == NO_TYPE) {
+        EnterTimezone(trig.tz);
+        dse = ComputeTrigger(get_scanfrom(&trig), &trig, &tim, &r, 0);
+        ExitTimezone(trig.tz);
+    } else {
+        DestroyParser(&p);
+        FreeTrig(&trig);
+        return E_PARSE_ERR;
+    }
+
+    DestroyParser(&p);
+    if (r) {
+        FreeTrig(&trig);
+        return r;
+    }
+    if (dse < 0) {
+        FreeTrig(&trig);
+        return E_CANT_TRIG;
+    }
+    if (dse >= 0) {
+        if (tim.ttime != NO_TIME) {
+            if (*systime != -1) {
+                Usage();
+            }
+            dse=AdjustTriggerForTimeZone(&trig, dse, &tim, 1);
+            *systime = tim.ttime * 60;
+        }
+        FromDSE(dse, y, m, d);
+        if (dse != RealToday) {
+            IgnoreOnce = 1;
+        }
+    }
+    FreeTrig(&trig);
+    return OK;
+}
+
+static void
+SetTodayFromCmdlineArgs(int dse, int y, int m, int d)
+{
+    if (dse != NO_DATE) {
+        FromDSE(dse, &y, &m, &d);
+    }
+    /* Must supply date in the form:  day, mon, yr OR mon, yr */
+    if (m != NO_MON || y != NO_YR || d != NO_DAY) {
+        if (y == NO_YR) {
+            y = CurYear;
+        }
+        if (m == NO_MON) {
+            Usage();
+        }
+        if (d == NO_DAY) d=1;
+        if (d > DaysInMonth(m, y)) {
+            fprintf(ErrFp, "%s", BadDate);
+            Usage();
+        }
+        DSEToday = DSE(y, m, d);
+        if (DSEToday == -1) {
+            fprintf(ErrFp, "%s", BadDate);
+            Usage();
+        }
+        LocalDSEToday = DSEToday;
+        CurYear = y;
+        CurMon = m;
+        CurDay = d;
+        if (DSEToday != RealToday) IgnoreOnce = 1;
+    }
+}

src/userfns.c

@@ -117,16 +117,16 @@ int DoFrename(ParsePtr p)
         return r;
     }
     if (FindBuiltinFunc(DBufValue(&newbuf))) {
-        Eprint("%s: `%s'", GetErr(E_REDEF_FUNC), DBufValue(&newbuf));
+        Eprint("%s: `%s'", GetErr(E_REDEF_BUILTIN_FUNC), DBufValue(&newbuf));
         DBufFree(&oldbuf);
         DBufFree(&newbuf);
-        return E_REDEF_FUNC;
+        return E_REDEF_BUILTIN_FUNC;
     }
     if (FindBuiltinFunc(DBufValue(&oldbuf))) {
-        Eprint("%s: `%s'", GetErr(E_REDEF_FUNC), DBufValue(&oldbuf));
+        Eprint("%s: `%s'", GetErr(E_REDEF_BUILTIN_FUNC), DBufValue(&oldbuf));
         DBufFree(&oldbuf);
         DBufFree(&newbuf);
-        return E_REDEF_FUNC;
+        return E_REDEF_BUILTIN_FUNC;
     }
     RenameUserFunc(DBufValue(&oldbuf), DBufValue(&newbuf));
     DBufFree(&oldbuf);
@@ -288,23 +288,29 @@ int DoFset(ParsePtr p)
         nonconst_debug(0, tr("Function definition considered non-constant because of context"));
         func->is_constant = 0;
     }
-    StrnCpy(func->name, DBufValue(&buf), VAR_NAME_LEN);
-    DBufFree(&buf);
-    if (!Hush) {
-        if (FindBuiltinFunc(func->name)) {
-            if (warning_level("03.00.04")) {
-                Eprint("%s: `%s'", GetErr(E_REDEF_FUNC), func->name);
-            }
-        }
-    }
     func->node = NULL;
     func->nargs = 0;
     func->args = NULL;
 
+    StrnCpy(func->name, DBufValue(&buf), VAR_NAME_LEN);
+    DBufFree(&buf);
+    if (FindBuiltinFunc(func->name)) {
+        if (!Hush) {
+            if (warning_level("03.00.04")) {
+                Eprint("%s: `%s'", GetErr(E_REDEF_BUILTIN_FUNC), func->name);
+            }
+        }
+        DestroyUserFunc(func);
+        return E_REDEF_BUILTIN_FUNC;
+    }
+
     /* Get the local variables */
 
     c=ParseNonSpaceChar(p, &r, 1);
-    if (r) return r;
+    if (r) {
+        DestroyUserFunc(func);
+        return r;
+    }
     if (c == ')') {
         (void) ParseNonSpaceChar(p, &r, 0);
     } else {
@@ -449,6 +455,13 @@ static void DestroyUserFunc(UserFunc *f)
 /***************************************************************/
 static void FUnset(char const *name)
 {
+    if (!Hush) {
+        if (FindBuiltinFunc(name)) {
+            if (warning_level("06.02.06")) {
+                Eprint("%s: `%s'", GetErr(E_UNSET_BUILTIN_FUNC), name);
+            }
+        }
+    }
     UserFunc *f = FindUserFunc(name);
     if (f) {
         hash_table_delete(&FuncHash, f);
@@ -715,6 +728,16 @@ int PushUserFuncs(ParsePtr p)
             return E_BAD_ID;
         }
 
+        if (FindBuiltinFunc(name)) {
+            if (!Hush) {
+                if (warning_level("06.02.06")) {
+                    Eprint("%s: `%s'", GetErr(E_PUSH_BUILTIN_FUNC), name);
+                    FreshLine = 1;
+                }
+            }
+            DBufFree(&buf);
+            continue;
+        }
         r = add_func_to_push(name, pf);
 
         DBufFree(&buf);

src/var.c

@@ -850,6 +850,9 @@ int DoDump(ParsePtr p)
             else {
                 fprintf(ErrFp, "%s  ", v->name);
                 PrintValue(&(v->v), ErrFp);
+                if (v->preserve) {
+                    fprintf(ErrFp, " <preserved>");
+                }
                 if (dump_constness) {
                     if (v->is_constant) {
                         fprintf(ErrFp, " <const>");
@@ -885,6 +888,9 @@ void DumpVarTable(int dump_constness)
     hash_table_for_each(v, &VHashTbl) {
         fprintf(ErrFp, "%s  ", v->name);
         PrintValue(&(v->v), ErrFp);
+        if (v->preserve) {
+            fprintf(ErrFp, " <preserved>");
+        }
         if (dump_constness) {
             if (v->is_constant) {
                 fprintf(ErrFp, " <const>");
@@ -1098,6 +1104,7 @@ static SysVar SysVarArr[] = {
     {"Pm",             1,  TRANS_TYPE,   "pm",                 0,      0 },
     {"PrefixLineNo",   0,  INT_TYPE,     &DoPrefixLineNo,      0,      0 },
     {"PSCal",          0,  INT_TYPE,     &PsCal,               0,      0 },
+    {"Repeat",         0,  INT_TYPE,     &OrigIterations,      0,      0 },
     {"RunOff",         0,  INT_TYPE,     &RunDisabled,         0,      0 },
     {"Saturday",       1,  TRANS_TYPE,   "Saturday",           0,      0 },
     {"September",      1,  TRANS_TYPE,   "September",          0,      0 },

tests/manpage-personal-dict

@@ -184,6 +184,7 @@ Hohl
 Hplu
 Hurray
 HushMode
+ICS
 IFTRIG
 IFs
 IIF

tests/purge_dir/f3.rem

@@ -59,11 +59,11 @@ OMIT 2 Jan 1992
 
 # Complicated expressions
 SET a 3
-FSET const(x) x+3
+FSET is_const(x) x+3
 FSET not_const(x) x+nonconst(a)
 
-REM [const(5)] Jan 1992 MSG expired... should be commented out
+REM [is_const(5)] Jan 1992 MSG expired... should be commented out
-REM [const(a)] Jan 1992 MSG expired... should be commented out
+REM [is_const(a)] Jan 1992 MSG expired... should be commented out
 REM [not_const(5)] Jan 1992 MSG nonconstant expression
 REM [value("a")] Jan 1992 MSG constant expression
 REM [value("__cabbage", 1)] Jan 1992 MSG non-constant expression

tests/test-rem

@@ -994,6 +994,17 @@ $REMIND -pp ../tests/shaded.rem 2026-02-01 >> $OUT 2>&1
 $REMIND ../tests/test-pushpop1.rem 2026-01-01 >> $OUT 2>&1
 $REMIND -dp ../tests/test-pushpop1.rem 2026-01-01 >> $OUT 2>&1
 
+# Test the '@trigger" command-line parameter
+echo "REM MSG %y-%t-%r" | $REMIND --test - '@13 SATISFY [$Tw == 5]' >> $OUT 2>&1
+echo "REM MSG %y-%t-%r" | $REMIND --test - '@January' >> $OUT 2>&1
+echo "REM MSG %y-%t-%r" | $REMIND --test - '@Dec SATISFY [$Tw == 6]' >> $OUT 2>&1
+echo "REM MSG %y-%t-%r" | $REMIND --test - '@Dec 1990' >> $OUT 2>&1
+
+echo "REM MSG %y-%t-%r" | $REMIND - 2026-08-01 '@13 SATISFY [$Tw == 5]' >> $OUT 2>&1
+echo "REM MSG %y-%t-%r" | $REMIND - 2026-08-01 '@January' >> $OUT 2>&1
+echo "REM MSG %y-%t-%r" | $REMIND - 2026-08-01 '@Dec SATISFY [$Tw == 6]' >> $OUT 2>&1
+echo "REM MSG %y-%t-%r" | $REMIND - 2026-08-01 '@Dec 1990' >> $OUT 2>&1
+
 cmp -s $OUT $CMP
 if [ "$?" = "0" ]; then
    echo "Remind:  Acceptance tests ${GRN}PASSED${NRM}"

tests/test.cmp

@@ -1046,7 +1046,7 @@ set a057 value("a05"+"6")
 "a05" + "6" => "a056"
 value("a056") => "SDFJHSDF KSJDFH KJSDFH KSJDFH"
 set a058 version()
-version() => "06.02.05"
+version() => "06.02.06"
 set a059 wkday(today())
 today() => 1991-02-16
 wkday(1991-02-16) => "Saturday"
@@ -2609,7 +2609,7 @@ a056  "SDFJHSDF KSJDFH KJSDFH KSJDFH"
 a007  "1991-02-16"
 a057  "SDFJHSDF KSJDFH KJSDFH KSJDFH"
 a008  "11:44"
-a058  "06.02.05"
+a058  "06.02.06"
 a059  "Saturday"
 a010  12
 a060  6
@@ -5563,8 +5563,8 @@ REM SATISFY ""
 REM SATISFY [version() > "01.00.00"]
 ../tests/test.rem(1074): SATISFY: expression has no reference to trigdate() or $T...
 ../tests/test.rem(1074): Trig = Saturday, 16 February, 1991
-version() => "06.02.05"
+version() => "06.02.06"
-"06.02.05" > "01.00.00" => 1
+"06.02.06" > "01.00.00" => 1
 ../tests/test.rem(1074): Trig(satisfied) = Saturday, 16 February, 1991
 REM SATISFY [max(x, max(x, 1, 2, 3), 4, 5, 6) * 5]
 ../tests/test.rem(1075): SATISFY: expression has no reference to trigdate() or $T...
@@ -16771,13 +16771,16 @@ mbupper("öÖçÇéôñÑÉÊ") => "ÖÖÇÇÉÔÑÑÉÊ"
 mblower("öÖçÇéôñÑÉÊ") => "ööççéôññéê"
 upper("öÖçÇéôñÑÉÊ") => "öÖçÇéôñÑÉÊ"
 lower("öÖçÇéôñÑÉÊ") => "öÖçÇéôñÑÉÊ"
-DynBuf Mallocs: 1132 mallocs; 31873408 bytes
+../tests/test.rem(1915): Attempt to redefine built-in function: `max'
+../tests/test.rem(1916): Attempt to unset built-in function: `max'
+../tests/test.rem(1917): Attempt to PUSH built-in function: `max'
+DynBuf Mallocs: 1134 mallocs; 31873536 bytes
 Variable hash table statistics:
   Entries: 100146; Buckets: 87719; Non-empty Buckets: 66303
   Maxlen: 5; Minlen: 0; Avglen: 1.142; Stddev: 0.878; Avg nonempty len: 1.510
   Growths: 13; Shrinks: 0
 Function hash table statistics:
-  Entries: 100023; Buckets: 87719; Non-empty Buckets: 63576
+  Entries: 100022; Buckets: 87719; Non-empty Buckets: 63575
   Maxlen: 5; Minlen: 0; Avglen: 1.140; Stddev: 0.934; Avg nonempty len: 1.573
   Growths: 13; Shrinks: 0
 Dedupe hash table statistics:
@@ -16789,7 +16792,7 @@ Translation hash table statistics:
   Maxlen: 1; Minlen: 0; Avglen: 0.143; Stddev: 0.350; Avg nonempty len: 1.000
   Growths: 0; Shrinks: 0
  Expression nodes allocated: 302080
-Expression nodes high-water: 302076
+Expression nodes high-water: 302075
     Expression nodes leaked: 0
      Parse level high-water: 34
 Max expr node evaluations per line: 2001
@@ -20507,7 +20510,6 @@ Timed
 Untimed
 
 Purge Test
-../tests/purge_dir/f3.rem(62): Attempt to redefine built-in function: `const'
 ../tests/purge_dir/f3.rem(76): `/': Division by zero
 ../tests/purge_dir/f3.rem(76): `/': Division by zero
 F1
@@ -20603,13 +20605,13 @@ OMIT 2 Jan 1992
 
 # Complicated expressions
 SET a 3
-FSET const(x) x+3
+FSET is_const(x) x+3
 FSET not_const(x) x+nonconst(a)
 
 #!P: Next line has expired, but contains expression...  please verify
-#!P: Expired: REM [const(5)] Jan 1992 MSG expired... should be commented out
+#!P: Expired: REM [is_const(5)] Jan 1992 MSG expired... should be commented out
 #!P: Next line has expired, but contains expression...  please verify
-#!P: Expired: REM [const(a)] Jan 1992 MSG expired... should be commented out
+#!P: Expired: REM [is_const(a)] Jan 1992 MSG expired... should be commented out
 #!P: Next line may have expired, but contains non-constant expression
 #!P: or a relative SCANFROM clause
 REM [not_const(5)] Jan 1992 MSG nonconstant expression
@@ -20727,11 +20729,11 @@ OMIT 2 Jan 1992
 
 # Complicated expressions
 SET a 3
-FSET const(x) x+3
+FSET is_const(x) x+3
 FSET not_const(x) x+nonconst(a)
 
-#!P: Expired: REM [const(5)] Jan 1992 MSG expired... should be commented out
+#!P: Expired: REM [is_const(5)] Jan 1992 MSG expired... should be commented out
-#!P: Expired: REM [const(a)] Jan 1992 MSG expired... should be commented out
+#!P: Expired: REM [is_const(a)] Jan 1992 MSG expired... should be commented out
 REM [not_const(5)] Jan 1992 MSG nonconstant expression
 #!P: Expired: REM [value("a")] Jan 1992 MSG constant expression
 REM [value("__cabbage", 1)] Jan 1992 MSG non-constant expression
@@ -23831,7 +23833,7 @@ SECURITY: Won't read world-writable file or directory!
 Error reading include_dir/ww: Can't open file
 SECURITY: Won't read world-writable file or directory!
 Error reading include_dir/ww: No files matching *.rem
-06.02.05
+06.02.06
 Enabling test mode: This is meant for the acceptance test.
 Do not use --test in production.
 In test mode, the system time is fixed at 2025-01-06@19:00
@@ -23994,7 +23996,7 @@ No bug
 
 Variable  Value
 
-foo  0
+foo  0 <preserved>
 No reminders.
 Variable  Value
 
@@ -24948,6 +24950,7 @@ $ParseUntriggered
 $Pm
 $PrefixLineNo
 $PSCal
+$Repeat
 $RunOff
 $Saturday
 $September
@@ -25200,6 +25203,8 @@ TRANSLATE "Maximum expression complexity exceeded" ""
 TRANSLATE "Expecting operator or end-of-expression" ""
 TRANSLATE "Expecting constant, variable, function call or (expression)" ""
 TRANSLATE "Invalid value for system variable" ""
+TRANSLATE "Attempt to unset built-in function" ""
+TRANSLATE "Attempt to PUSH built-in function" ""
 
 # Other Messages
 TRANSLATE "%s function `%s' defined at %s(%s) does not use its argument" ""
@@ -40278,3 +40283,41 @@ No reminders.
 ../tests/test-pushpop2.rem(2): POP-FUNCS at ../tests/test-pushpop2.rem:2 matches PUSH-FUNCS in different file: ../tests/test-pushpop1.rem:2
 ../tests/test-pushpop2.rem(3): POP-OMIT-CONTEXT at ../tests/test-pushpop2.rem:3 matches PUSH-OMIT-CONTEXT in different file: ../tests/test-pushpop1.rem:1
 No reminders.
+Enabling test mode: This is meant for the acceptance test.
+Do not use --test in production.
+In test mode, the system time is fixed at 2025-01-06@19:00
+Reminders for Friday, 13th June, 2025:
+
+2025-06-13
+
+Enabling test mode: This is meant for the acceptance test.
+Do not use --test in production.
+In test mode, the system time is fixed at 2025-01-06@19:00
+Reminders for Monday, 6th January, 2025 (today):
+
+2025-01-06
+
+Enabling test mode: This is meant for the acceptance test.
+Do not use --test in production.
+In test mode, the system time is fixed at 2025-01-06@19:00
+Reminders for Saturday, 6th December, 2025:
+
+2025-12-06
+
+Enabling test mode: This is meant for the acceptance test.
+Do not use --test in production.
+In test mode, the system time is fixed at 2025-01-06@19:00
+Could not evaluate command-line trigger: Can't compute trigger
+Reminders for Friday, 13th November, 2026:
+
+2026-11-13
+
+Reminders for Friday, 1st January, 2027:
+
+2027-01-01
+
+Reminders for Saturday, 5th December, 2026:
+
+2026-12-05
+
+Could not evaluate command-line trigger: Can't compute trigger

tests/test.rem

@@ -1911,6 +1911,12 @@ SET a upper("öÖçÇéôñÑÉÊ")
 SET a lower("öÖçÇéôñÑÉÊ")
 DEBUG -x
 
+# Warnings about defining/unsetting/pushing built-in functions
+FSET max(x) x*2
+FUNSET max
+PUSH-FUNCS max a b c
+POP-FUNCS
+
 # Don't want Remind to queue reminders
 EXIT