Changes to m4/ChangeLog,v [branch-1_4]

[Eric Blake]

CVSROOT:        /sources/m4
Module name:    m4
Branch:         branch-1_4
Changes by:     Eric Blake <ericb>      06/08/18 16:28:22

Index: ChangeLog
===================================================================
RCS file: /sources/m4/m4/ChangeLog,v
retrieving revision 1.1.1.1.2.159
retrieving revision 1.1.1.1.2.160
diff -u -b -r1.1.1.1.2.159 -r1.1.1.1.2.160
--- ChangeLog   18 Aug 2006 04:00:59 -0000      1.1.1.1.2.159
+++ ChangeLog   18 Aug 2006 16:28:22 -0000      1.1.1.1.2.160
@@ -1,3 +1,17 @@
+2006-08-18  Eric Blake  <address@hidden>
+
+       Regular expressions were leaking memory.
+       * src/builtin.c (init_pattern_buffer, free_pattern_buffer): New
+       helper methods.
+       (m4_regexp, m4_patsubst): Avoid memory leak.
+       * src/input.c (init_pattern_buffer) [ENABLE_CHANGEWORD]: Make
+       static.
+       (set_word_regexp) [ENABLE_CHANGEWORD]: Avoid memory leak.  Change
+       from O(n^2) to O(n) for calculating word_start.
+       (next_token, peek_token) [ENABLE_CHANGEWORD]: Treat word_start as
+       O(1) bitmap, not O(n) search string.
+       * NEWS: Document this fix.
+
 2006-08-17  Eric Blake  <address@hidden>
 
        * NEWS: Document previous checkin.
@@ -2830,4 +2844,4 @@
 
        * Initial beta release.  Release 0.50, manual 0.05.
 
-       $Revision: 1.1.1.1.2.159 $ $Date: 2006/08/18 04:00:59 $
+       $Revision: 1.1.1.1.2.160 $ $Date: 2006/08/18 16:28:22 $