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Is it possible to expand macro just once?
From: |
Wolf |
Subject: |
Is it possible to expand macro just once? |
Date: |
Mon, 12 Oct 2020 12:27:55 +0200 |
Hello,
Not subscribed to the list, so please CC.
I have m4 template that contains macro, that I do not know the value of
(provided by user). That can lead to user setting the macro to name of
another macro, like:
$ echo foo | m4 -Dfoo=bar -Dbar=baz
baz
Now, I understand why it happens and that it is expected. However, due
to reason stated above, I need the macro to expand just once, so that
the snippet above would produce `bar`. Is there a way to do so?
Thank you in advance for any help :)
W.
--
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.
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- Is it possible to expand macro just once?,
Wolf <=