I think it would be nice to make the regex module to import a texinfo
file documenting the supported regular expressions syntax
I agree in principle, but ...
We could get the "Regular Expression Syntax"
chapter in its own file regex-syntax.texi,
.. this isn't ideal as-is. There's a bunch of stuff in there referring
to syntax bits. That's needed as documentation of the library, but
isn't relevant to users.
I fear the ideal would be to actually write new text with users in mind.
But as we all know, the ideal is hard to put into practice.
As an available-now alternative, James (Youngman) developed some
automatically-generated Texinfo for each syntax for findutils. I'd
suggest going that way for recutils. I don't remember why we never
generated/imported/exported those docs in gnulibs, but see the findutils
sources for what he did.
POSIX BREs and EREs
And the GNU extensions that we should all be supporting by default :).
Everything except the "Overview" and "Programming with Regex" chapters
looks more or less relevant, modulo the caveats above ...
Best,
k
