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* doc/autoconf.texi (Programming in M4sh): Sharpen the descriptions

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of AS_BASENAME and AS_DIRNAME.  Reported by Stepan Kasal.
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Paul Eggert 2006-03-31 18:55:43 +00:00
parent e4913c88f3
commit 572ffd5b0b
2 changed files with 7 additions and 6 deletions
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ChangeLog
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@ -1,5 +1,8 @@
2006-03-31 Paul Eggert <eggert@cs.ucla.edu>
* doc/autoconf.texi (Programming in M4sh): Sharpen the descriptions
of AS_BASENAME and AS_DIRNAME. Reported by Stepan Kasal.
* lib/m4sugar/m4sh.m4 (AS_BASENAME_EXPR): Handle ///, ////, etc.
correctly. Problem reported by Eric Blake.
(_AS_EXPR_PREPARE): Detect Tru64 expr bug. Problem reported by

10
doc/autoconf.texi
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@ -9386,9 +9386,8 @@ that unfortunately are not portable in practice.
@defmac AS_BASENAME (@var{file-name})
@asindex{BASENAME}
Output the non-directory portion of @var{file-name}. For example,
@code{file=`AS_BASENAME([/one/two/three])`} sets @code{file} to
@samp{three}. @xref{Limitations of Usual Tools}, for why this is more
portable than @command{file=`basename /one/two/three`}.
if @code{$file} is @samp{/one/two/three}, the command
@code{base=`AS_BASENAME(["$file"])`} sets @code{base} to @samp{three}.
@end defmac
@defmac AS_BOURNE_COMPATIBLE
@ -9409,9 +9408,8 @@ corresponding pattern matched @var{word}, else @var{default} is run.
@defmac AS_DIRNAME (@var{file-name})
@asindex{DIRNAME}
Output the directory portion of @var{file-name}. For example,
@code{file=`AS_DIRNAME([/one/two/three])`} sets @code{file} to
@samp{/one/two}. @xref{Limitations of Usual Tools}, for why this is
more portable than @command{file=`dirname /one/two/three`}.
if @code{$file} is @samp{/one/two/three}, the command
@code{dir=`AS_DIRNAME(["$file"])`} sets @code{dir} to @samp{/one/two}.
@end defmac
@defmac AS_IF (@var{test1}, @ovar{run-if-true1}, @dots{}, @ovar{run-if-false})