Salut Akim!
Akim Demaille wrote:
>>>>"Gary" == Gary V Vaughan <gary@xxxxxxx> writes:
> > Would you mind if I ship an implementation of m4sugar.m4 with the
> > next release of GNU m4, with an eye to replacing parts of it with
> > C at some point?
>
> There are some issues in m4sugar that were waiting for a better C
> implementation. In particular:
>
> - ERE instead of BRE
I'm still not sure how to do this in a backwards compatible way.
What about adding an optional 4th parameter for setting the regexp
syntax (that defaults to BRE if unset)? Apps that need ERE can use:
patsubst(foo, bar, baz, ERE)
> - text builtins should return their result *quoted*.
Agreed. I'll make sure this goes in!
> However, a C implementation of m4sugar is not the best (=more urgent)
> service GNU M4 can give to M4sugar: call-stack introspection would be
> much better, and would considerably speed up Autoconf (I bet of 30%).
> Basically, everything related on m4_expansion_stack should be provided
> by m4 itself.
Okay, that sounds like a worthy goal. I'll put it at the top of my
m4 TODO.
Cheers,
Gary.
--
Gary V. Vaughan ())_. gary@{lilith.warpmail.net,gnu.org}
Research Scientist ( '/ http://tkd.kicks-ass.net
GNU Hacker / )= http://www.gnu.org/software/libtool
Technical Author `(_~)_ http://sources.redhat.com/autobook
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