[sr #105855] Multi-op patsubst() and translit()

Eric Blake <[email protected]> Fri, 4 Apr 2025 10:21:15 -0400 (EDT)

Newsgroups	gmane.comp.gnu.m4.bugs
Message-ID	<[email protected]>

Follow-up Comment #4, sr #105855 (group m4):

I'm seriously thinking of adding a qindir builtin to m4 1.6, which executes
any other builtin macro but adds a layer of quoting around its expansion.
Example:

define(`b', `B')dnl
substr(`abc', 1, 1)
=> B
indir(`substr', `abc', 1, 1)
=> B
qindir(`substr', `abc', 1, 1)
=> b

with qindir, you CAN write a recursive patsubst that properly quotes the input
for the next round of replacement.


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