Allow SATISFY on command-line.

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.

man/remind.1.in

@@ -515,10 +515,12 @@ 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."

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/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/init.c

@@ -54,6 +54,8 @@ 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 ProcessLongOption(char const *arg);
 /***************************************************************
  *
@@ -183,6 +185,7 @@ 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 +743,28 @@ 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 == '@') {
+                if (m != NO_MON || d != NO_DAY || y != NO_YR || dse != NO_DATE) {
+                    Usage();
+                }
+                r = GetInitDateFromTrigger(arg+1, &y, &m, &d, &SysTime);
+                if (r == OK) {
+                    if (SysTime != -1) {
+                        DontQueue = 1;
+                        Daemon = 0;
+                        LocalSysTime = SysTime;
+                    }
+                } else {
+                    fprintf(stderr, "Could not evaluate command-line trigger: %s\n", GetErr(r));
+                    Usage();
+                }
+                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;
@@ -806,16 +827,13 @@ void InitRemind(int argc, char const *argv[])
         if (dse != NO_DATE) {
             FromDSE(dse, &y, &m, &d);
         }
-/* Must supply date in the form:  day, mon, yr OR mon, yr */
+        /* 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 (y == NO_YR) {
+                y = CurYear;
+            }
+            if (m == NO_MON) {
+                Usage();
             }
             if (d == NO_DAY) d=1;
             if (d > DaysInMonth(m, y)) {
@@ -1401,3 +1419,66 @@ 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);
+    }
+    FreeTrig(&trig);
+    return OK;
+}