*** empty log message ***

[bpt/emacs.git] / src / regex.c

diff --git a/src/regex.c b/src/regex.c
index c765f4b..846c870 100644 (file)
--- a/src/regex.c
+++ b/src/regex.c
@@ -3,7 +3,7 @@
    internationalization features.)
 
    Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-                 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+                 2002, 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -181,6 +181,51 @@ char *malloc ();
 char *realloc ();
 # endif
 
+/* When used in Emacs's lib-src, we need xmalloc and xrealloc. */
+
+void *
+xmalloc (size)
+     size_t size;
+{
+  register void *val;
+  val = (void *) malloc (size);
+  if (!val && size)
+    {
+      write (2, "virtual memory exhausted\n", 25);
+      exit (1);
+    }
+  return val;
+}
+
+void *
+xrealloc (block, size)
+     void *block;
+     size_t size;
+{
+  register void *val;
+  /* We must call malloc explicitly when BLOCK is 0, since some
+     reallocs don't do this.  */
+  if (! block)
+    val = (void *) malloc (size);
+  else
+    val = (void *) realloc (block, size);
+  if (!val && size)
+    {
+      write (2, "virtual memory exhausted\n", 25);
+      exit (1);
+    }
+  return val;
+}
+
+# ifdef malloc
+#  undef malloc
+# endif
+# define malloc xmalloc
+# ifdef realloc
+#  undef realloc
+# endif
+# define realloc xrealloc
+
 /* When used in Emacs's lib-src, we need to get bzero and bcopy somehow.
    If nothing else has been done, use the method below.  */
 # ifdef INHIBIT_STRING_HEADER
@@ -524,6 +569,9 @@ init_syntax_once ()
 #define MAX(a, b) ((a) > (b) ? (a) : (b))
 #define MIN(a, b) ((a) < (b) ? (a) : (b))
 
+/* Type of source-pattern and string chars.  */
+typedef const unsigned char re_char;
+
 typedef char boolean;
 #define false 0
 #define true 1
@@ -1262,9 +1310,9 @@ static re_char *whitespace_regexp;
 
 void
 re_set_whitespace_regexp (regexp)
-     re_char *regexp;
+     const char *regexp;
 {
-  whitespace_regexp = regexp;
+  whitespace_regexp = (re_char *) regexp;
 }
 WEAK_ALIAS (__re_set_syntax, re_set_syntax)
 \f
@@ -1871,8 +1919,9 @@ typedef struct
 /* The next available element.  */
 #define COMPILE_STACK_TOP (compile_stack.stack[compile_stack.avail])
 
-/* Explicit quit checking is only used on NTemacs.  */
-#if defined WINDOWSNT && defined emacs && defined QUIT
+/* Explicit quit checking is only used on NTemacs and whenever we
+   use polling to process input events.  */
+#if defined emacs && (defined WINDOWSNT || defined SYNC_INPUT) && defined QUIT
 extern int immediate_quit;
 # define IMMEDIATE_QUIT_CHECK                  \
     do {                                       \
@@ -5633,7 +5682,6 @@ re_match_2_internal (bufp, string1, size1, string2, size2, pos, regs, stop)
           the repetition text and either the following jump or
           pop_failure_jump back to this on_failure_jump.  */
        case on_failure_jump:
-         IMMEDIATE_QUIT_CHECK;
          EXTRACT_NUMBER_AND_INCR (mcnt, p);
          DEBUG_PRINT3 ("EXECUTING on_failure_jump %d (to %p):\n",
                        mcnt, p + mcnt);
@@ -5649,7 +5697,6 @@ re_match_2_internal (bufp, string1, size1, string2, size2, pos, regs, stop)
           then we can use a non-backtracking loop based on
           on_failure_keep_string_jump instead of on_failure_jump.  */
        case on_failure_jump_smart:
-         IMMEDIATE_QUIT_CHECK;
          EXTRACT_NUMBER_AND_INCR (mcnt, p);
          DEBUG_PRINT3 ("EXECUTING on_failure_jump_smart %d (to %p).\n",
                        mcnt, p + mcnt);