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Re: 02AS_HELP_STRING.diff


From: Derek Robert Price
Subject: Re: 02AS_HELP_STRING.diff
Date: Fri, 28 Mar 2003 09:47:48 -0500
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.2) Gecko/20030208 Netscape/7.02

Akim Demaille wrote:

Derek> address@hidden wrote:
>> Index: ChangeLog
>> 2003-03-21  Derek Price  <address@hidden>
>> >> * lib/autoconf/general.m4 (AC_ARG_VAR): Use AS_HELP_STRING instead of
>> obsolete AC_HELP_STRING.
>> (AC_HELP_STRING): AU_DEFUN to...
>> * lib/m4sugar/m4sh.m4 (AS_HELP_STRING): ...here.
>> * tests/m4sh.at (AS_HELP_STRING): New test.
>>
Derek> Committed.

Why this patch?  AC_HELP_STRING is a *bad* thing, I did not mean to
propagate it further.  Are you using this in an AS script?  Such a
patch also needs that documentation, and NEWS.

NEWS and doc I can deal with. As for how I am using it, I want to use it in an Autotest script. In another patch or three I will add an AT_ macro to accept scripter-defined options. Since the functionality would be shared between AT and AC, I thought AS would be the best place. Is there a better place? Printing help strings and accepting options isn't exactly an uncommon idiom in scripts.

The deeper reason behind this is that I started converting the CVS test suite (on the CVS project itself, as opposed to the Autoconf test suite checked into CVS) to use autotest. The CVS tests suite is currently a molithic, 25k+ line Bourne shell script. You can imagine what a bear that is to maintain. In converting it, I am attempting to maintain backwards compatibility with the options the original test suite accepts and in a few cases I just can't imagine a better way of accomplishing what the options accomplish.

Derek

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