From: Stefan Monnier <monnier@iro.umontreal.ca>
Date: Tue, 3 Oct 2006 13:19:18 +0000 (+0000)
Subject: (regex_compile): Set the new `used_syntax' bit.
X-Git-Tag: emacs-pretest-22.0.90~251
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=6224b623fd39be87b33e0ff7dd582a3e8818e340;p=emacs.git

(regex_compile): Set the new `used_syntax' bit.
---

diff --git a/src/regex.c b/src/regex.c
index 66e363e731c..ae80ad0cee8 100644
--- a/src/regex.c
+++ b/src/regex.c
@@ -2530,6 +2530,7 @@ regex_compile (pattern, size, syntax, bufp)
   bufp->syntax = syntax;
   bufp->fastmap_accurate = 0;
   bufp->not_bol = bufp->not_eol = 0;
+  bufp->used_syntax = 0;
 
   /* Set `used' to zero, so that if we return an error, the pattern
      printer (for debugging) will think there's no pattern.  We reset it
@@ -2942,6 +2943,14 @@ regex_compile (pattern, size, syntax, bufp)
 			      SET_LIST_BIT (translated);
 			  }
 
+			/* In most cases the matching rule for char classes
+			   only uses the syntax table for multibyte chars,
+			   so that the content of the syntax-table it is not
+			   hardcoded in the range_table.  SPACE and WORD are
+			   the two exceptions.  */
+			if ((1 << cc) & ((1 << RECC_SPACE) | (1 << RECC_WORD)))
+			  bufp->used_syntax = 1;
+
 			/* Repeat the loop. */
 			continue;
 		      }