Does anyone have any feelings on this? It's a simple macro to allow one to write case patterns with both open and close parentheses, to make tools like emacs play more nicely with your source code.
-Dan
Index: lib/m4sugar/m4sh.m4 =================================================================== RCS file: /cvsroot/autoconf/autoconf/lib/m4sugar/m4sh.m4,v retrieving revision 1.135 diff -u -r1.135 m4sh.m4 --- lib/m4sugar/m4sh.m4 5 Feb 2005 07:58:43 -0000 1.135 +++ lib/m4sugar/m4sh.m4 8 Feb 2005 19:37:38 -0000 @@ -423,6 +423,16 @@ # This section is lexicographically sorted. +# AS_CASE_PATTERN(PATTERN...) +# --------------------------- +# Expands to the pattern portion of a case clause. This just separate all +# arguments from one another by ` | ' and terminates them with ` ) '. This is +# just a nicety to make m4sh source code look more balanced. Note that since +# having zero arguments would be erroneous, this macro outputs itself when +# given no arguments, which should then be noticed an an unexpanded macro. +m4_define([AS_CASE_PATTERN], +[m4_if($#,0,[[$0]],$#,1,[[$1 ) ]],[[$1 | ]$0(m4_shift($@))])]) + # AS_EXIT([EXIT-CODE = 1]) # ------------------------ # Exit and set exit code to EXIT-CODE in the way that it's seen
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