Update WHATSNEW and prep for 06.01.00 release.

docs/WHATSNEW

@@ -1,11 +1,17 @@
 CHANGES TO REMIND
 
-* VERSION 6.1 Patch 0 - 2025-??-??
+* VERSION 6.1 Patch 0 - 2025-09-08
 
 - MAJOR NEW FEATURE: remind: The TZ keyword lets you specify a time
   zone for a REM command.  All trigger calculations are performed in
   the named time zone.
 
+- DOCUMENTATION: Update README.md to document prerequisites for readline
+  support.
+
+- DOCUMENTATION: remind.1: Document system variables such as $T that can
+  have multiple types.
+
 - BUG FIX: remind: If Remind was run interactively ("remind -c -" with
   readline support enabled) it would not properly cache the input
   file, but would keep asking for interactive input.  This has been

examples/tflag.rem

@@ -5,15 +5,20 @@
 # trans people are under attack in the USA and many
 # other places.  So this is a little show of support
 # and resistance for trans people.
-BANNER %
 SET $AddBlankLines 0
-REM SPECIAL COLOR  91 206 250 ██████████████████████████████████
+BANNER %
-REM SPECIAL COLOR  91 206 250 ██████████████████████████████████
+set c max(columns()-1, 10)
-REM SPECIAL COLOR 245 169 184 ██████████████████████████████████
+set r max(rows(), 5)
-REM SPECIAL COLOR 245 169 184 ██████████████████████████████████
+
-REM SPECIAL COLOR 255 255 255 ██████████████████████████████████
+set bar "█" * c
-REM SPECIAL COLOR 255 255 255 ██████████████████████████████████
+set dups r/5
-REM SPECIAL COLOR 245 169 184 ██████████████████████████████████
+set bars (bar + "%_") * dups
-REM SPECIAL COLOR 245 169 184 ██████████████████████████████████
+
-REM SPECIAL COLOR  91 206 250 ██████████████████████████████████
+set bars substr(bars, 0, strlen(bars)-2)
-REM SPECIAL COLOR  91 206 250 ██████████████████████████████████
+
+REM SPECIAL COLOR  91 206 250 [bars]
+REM SPECIAL COLOR 245 169 184 [bars]
+REM SPECIAL COLOR 255 255 255 [bars]
+REM SPECIAL COLOR 245 169 184 [bars]
+REM SPECIAL COLOR  91 206 250 [bars]
+

man/remind.1.in

@@ -2340,7 +2340,7 @@ symbolic links to files.
 .PP
 The \fBSYSINCLUDE\fR command is similar to \fBDO\fR, but it looks for
 relative pathnames under the system directory containing standard reminder
-scripts.  For this version of \fBRemind\fR, the system directory is
+scripts.  For this installation of \fBRemind\fR, the system directory is
 "@prefix@/share/remind".
 .PP
 .SH THE RETURN COMMAND
@@ -4900,12 +4900,10 @@ Returns a string suitable for use in a \fBREM\fR command or a
 dates in advance.  Note that in earlier versions of \fBRemind\fR,
 \fBtrigger\fR was required to convert a date into something the
 \fBREM\fR command could consume.  However, in this version of
-\fBRemind\fR, you can omit it.  Note that \fBtrigger()\fR \fIalways\fR
+\fBRemind\fR, you can omit it.  Normally, the \fIdate\fR and
-returns its result in English, even for non-English versions of
+\fItime\fR are the local date and time; however, if \fIutcflag\fR is
-\fBRemind\fR.  Normally, the \fIdate\fR and \fItime\fR are the local
+non-zero, the \fIdate\fR and \fItime\fR are interpreted as UTC times,
-date and time; however, if \fIutcflag\fR is non-zero, the \fIdate\fR
+and are converted to local time.  Examples:
-and \fItime\fR are interpreted as UTC times, and are converted to
-local time.  Examples:
 .RS
 .PP
      trigger('1993/04/01')

tests/test-timezone-support

@@ -135,13 +135,30 @@ REM AT 13:33 TZ "" TZ America/Los_Angeles MSG Whatsup? %*l %3.
 REM TZ Universal MSG Borked
 EOF
 
-TZ=America/Toronto $REMIND -dx - <<'EOF' >> $OUT 2>&1
+TZ=America/Toronto $REMIND -dx - 2025-09-01@01:00 <<'EOF' >> $OUT 2>&1
 SET a tzconvert('2025-09-01@14:44', "", "Europe/Berlin")
 SET a tzconvert('2025-09-01@14:44', "America/Toronto", "Europe/Berlin")
 SET a tzconvert('2025-09-01@14:44', "Europe/Berlin", "")
 SET a tzconvert('2025-09-01@14:44', "Europe/Berlin")
 SET a tzconvert('2025-09-01@14:44', "", "")
 SET a tzconvert('2025-09-01@14:44', "")
+
+SET b evaltrig("Wednesday at 23:00 TZ Australia/Sydney")
+SET b evaltrig("Wednesday at 23:00 TZ Europe/Amsterdam")
+SET b evaltrig("Wednesday at 23:00 TZ America/Los_Angeles")
+set b evaltrig("Wednesday TZ Europe/Amsterdam")
+
+debug +t
+set c trig("Mon at 00:00 TZ Australia/Sydney",\
+           "Tue at 00:00 TZ America/Toronto",\
+           "Wed at 00:00 TZ Europe/Amsterdam",\
+           "Thu at 00:00 TZ America/Los_Angeles",\
+           "Fri at 00:00 TZ Australia/Sydney",\
+           "Sat at 00:00 TZ Australia/Sydney",\
+           "Sun at 00:00 TZ Australia/Sydney", \
+           "at 14:42")
+debug -t
+
 EOF
 
 cmp -s $OUT $CMP

tests/tz.cmp

@@ -49,3 +49,32 @@ tzconvert(2025-09-01@14:44, "Europe/Berlin", "") => 2025-09-01@08:44
 tzconvert(2025-09-01@14:44, "Europe/Berlin") => 2025-09-01@08:44
 tzconvert(2025-09-01@14:44, "", "") => 2025-09-01@14:44
 tzconvert(2025-09-01@14:44, "") => 2025-09-01@14:44
+evaltrig("Wednesday at 23:00 TZ Australia/Sydney") => 2025-09-03@09:00
+evaltrig("Wednesday at 23:00 TZ Europe/Amsterdam") => 2025-09-03@17:00
+evaltrig("Wednesday at 23:00 TZ America/Los_Angele"...) => 2025-09-04@02:00
+evaltrig("Wednesday TZ Europe/Amsterdam") => TZ specified for non-timed reminder
+-stdin-(11): evaltrig(): TZ specified for non-timed reminder
+trig("Mon at 00:00 TZ Australia/Sydney", "Tue at 00:00 TZ America/Toronto", "Wed at 00:00 TZ Europe/Amsterdam", "Thu at 00:00 TZ America/Los_Angeles", "Fri at 00:00 TZ Australia/Sydney", "Sat at 00:00 TZ Australia/Sydney", "Sun at 00:00 TZ Australia/Sydney", "at 14:42") => -stdin-(14:21): Trig(tz_adj Australia/Sydney) = Sunday, 31 August, 2025 AT 10:00
+-stdin-(14:21): Trig(tz_adj Australia/Sydney) = Sunday, 7 September, 2025 AT 10:00
+-stdin-(14:21): Trig = Monday, 8 September, 2025 AT 00:00
+-stdin-(14:21): Trig(tz_adj Australia/Sydney) = Sunday, 7 September, 2025 AT 10:00
+-stdin-(14:21): Trig(tz_adj America/Toronto) = Tuesday, 2 September, 2025 AT 00:00
+-stdin-(14:21): Trig = Tuesday, 2 September, 2025 AT 00:00
+-stdin-(14:21): Trig(tz_adj America/Toronto) = Tuesday, 2 September, 2025 AT 00:00
+-stdin-(14:21): Trig(tz_adj Europe/Amsterdam) = Tuesday, 2 September, 2025 AT 18:00
+-stdin-(14:21): Trig = Wednesday, 3 September, 2025 AT 00:00
+-stdin-(14:21): Trig(tz_adj Europe/Amsterdam) = Tuesday, 2 September, 2025 AT 18:00
+-stdin-(14:21): Trig(tz_adj America/Los_Angeles) = Thursday, 4 September, 2025 AT 03:00
+-stdin-(14:21): Trig = Thursday, 4 September, 2025 AT 00:00
+-stdin-(14:21): Trig(tz_adj America/Los_Angeles) = Thursday, 4 September, 2025 AT 03:00
+-stdin-(14:21): Trig(tz_adj Australia/Sydney) = Thursday, 4 September, 2025 AT 10:00
+-stdin-(14:21): Trig = Friday, 5 September, 2025 AT 00:00
+-stdin-(14:21): Trig(tz_adj Australia/Sydney) = Thursday, 4 September, 2025 AT 10:00
+-stdin-(14:21): Trig(tz_adj Australia/Sydney) = Friday, 5 September, 2025 AT 10:00
+-stdin-(14:21): Trig = Saturday, 6 September, 2025 AT 00:00
+-stdin-(14:21): Trig(tz_adj Australia/Sydney) = Friday, 5 September, 2025 AT 10:00
+-stdin-(14:21): Trig(tz_adj Australia/Sydney) = Saturday, 6 September, 2025 AT 10:00
+-stdin-(14:21): Trig = Sunday, 7 September, 2025 AT 00:00
+-stdin-(14:21): Trig(tz_adj Australia/Sydney) = Saturday, 6 September, 2025 AT 10:00
+-stdin-(14:21): Trig = Monday, 1 September, 2025 AT 14:42
+2025-09-01