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Clarify how we determine uniqueness of INCLUDECMD commands.

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Dianne Skoll
2021-09-05 11:38:13 -04:00
parent 4b4b2ddcd4
commit 1d0cc31b10
1 changed files with 7 additions and 3 deletions
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10
man/remind.1
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@@ -1611,9 +1611,13 @@ prefix it with "!" so that any RUN commands it emits fail.
.PP
An \fBINCLUDECMD\fR command counts towards the INCLUDE nesting depth.
For any given Remind run, a given INCLUDECMD command is only executed
once and the results are cached. For example, if you generate a calendar,
each INCLUDECMD command is run just once, not once for each day of the
produced calendar.
once and the results are cached. For example, if you generate a
calendar, each unique INCLUDECMD command is run just once, not once
for each day of the produced calendar. "Uniqueness" is determined by
looking at the command that will be passed to the shell, so if (for example)
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
.SH THE BANNER COMMAND