added common regex

[wxWidgets.git] / src / regex / regfree.c

diff --git a/src/regex/regfree.c b/src/regex/regfree.c
index 17a73896f55701c03ce11694ef96b39deaad098b..9a6acf1733ab0fed70814c2528410b15d804e3ac 100644 (file)
--- a/src/regex/regfree.c
+++ b/src/regex/regfree.c
@@ -1,53 +1,37 @@
-/*
- * regfree - free an RE
- *
- * Copyright (c) 1998, 1999 Henry Spencer.  All rights reserved.
- * 
- * Development of this software was funded, in part, by Cray Research Inc.,
- * UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
- * Corporation, none of whom are responsible for the results.  The author
- * thanks all of them. 
- * 
- * Redistribution and use in source and binary forms -- with or without
- * modification -- are permitted for any purpose, provided that
- * redistributions in source form retain this entire copyright notice and
- * indicate the origin and nature of any modifications.
- * 
- * I'd appreciate being given credit for this package in the documentation
- * of software which uses it, but that is not a requirement.
- * 
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
- * HENRY SPENCER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *
- *
- * You might think that this could be incorporated into regcomp.c, and
- * that would be a reasonable idea... except that this is a generic
- * function (with a generic name), applicable to all compiled REs
- * regardless of the size of their characters, whereas the stuff in
- * regcomp.c gets compiled once per character size.
- */
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <regex.h>
 
-#include "regguts.h"
+#include "utils.h"
+#include "regex2.h"
 
 /*
- - regfree - free an RE (generic function, punts to RE-specific function)
- *
- * Ignoring invocation with NULL is a convenience.
+ - regfree - free everything
+ = extern void regfree(regex_t *);
  */
-VOID
-regfree(re)
-regex_t *re;
+void
+regfree(preg)
+regex_t *preg;
 {
-       if (re == NULL)
+       register struct re_guts *g;
+
+       if (preg->re_magic != MAGIC1)   /* oops */
+               return;                 /* nice to complain, but hard */
+
+       g = preg->re_g;
+       if (g == NULL || g->magic != MAGIC2)    /* oops again */
                return;
-       (*((struct fns *)re->re_fns)->free)(re);
+       preg->re_magic = 0;             /* mark it invalid */
+       g->magic = 0;                   /* mark it invalid */
+
+       if (g->strip != NULL)
+               free((char *)g->strip);
+       if (g->sets != NULL)
+               free((char *)g->sets);
+       if (g->setbits != NULL)
+               free((char *)g->setbits);
+       if (g->must != NULL)
+               free(g->must);
+       free((char *)g);
 }