source: regex.c @ fe67f1f

barnowl_perlaimdebianowlrelease-1.10release-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since fe67f1f was bc08664, checked in by James M. Kretchmar <kretch@mit.edu>, 21 years ago
zpunt now works wtih weird regex characters CVS: ----------------------------------------------------------------------
  • Property mode set to 100644
File size: 1.6 KB
RevLine 
[7d4fbcd]1#include <string.h>
2#include "owl.h"
3
[1aee7d9]4static const char fileIdent[] = "$Id$";
5
[e187445]6void owl_regex_init(owl_regex *re)
7{
[7d4fbcd]8  re->negate=0;
9  re->string=NULL;
10}
11
[e187445]12int owl_regex_create(owl_regex *re, char *string)
13{
[7d4fbcd]14  int ret;
15  char buff1[LINE], buff2[LINE];
16  char *ptr;
17 
18  re->string=owl_strdup(string);
19
20  ptr=string;
21  re->negate=0;
22  if (string[0]=='!') {
23    ptr++;
24    re->negate=1;
25  }
26
27  /* set the regex */
28  ret=regcomp(&(re->re), ptr, REG_EXTENDED|REG_ICASE);
29  if (ret) {
30    regerror(ret, NULL, buff1, LINE);
31    sprintf(buff2, "Error in regular expression: %s", buff1);
32    owl_function_makemsg(buff2);
33    owl_free(re->string);
[a6560fe]34    re->string=NULL;
[7d4fbcd]35    return(-1);
36  }
37
38  return(0);
39}
40
[bc08664]41int owl_regex_create_quoted(owl_regex *re, char *string)
42{
43  char *quoted;
44 
45  quoted=owl_text_quote(string, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH);
46  owl_regex_create(re, quoted);
47  owl_free(quoted);
48  return(0);
49}
50
[e187445]51int owl_regex_compare(owl_regex *re, char *string)
52{
[7d4fbcd]53  int out, ret;
54
55  /* if the regex is not set we match */
56  if (!owl_regex_is_set(re)) {
57    return(0);
58  }
59 
60  ret=regexec(&(re->re), string, 0, NULL, 0);
61  out=ret;
62  if (re->negate) {
63    out=!out;
64  }
65  return(out);
66}
67
[e187445]68int owl_regex_is_set(owl_regex *re)
69{
[7d4fbcd]70  if (re->string) return(1);
71  return(0);
72}
73
[e187445]74char *owl_regex_get_string(owl_regex *re)
75{
[7d4fbcd]76  return(re->string);
77}
78
[e187445]79void owl_regex_copy(owl_regex *a, owl_regex *b)
80{
[7d4fbcd]81  b->negate=a->negate;
82  b->string=owl_strdup(a->string);
83  memcpy(&(b->re), &(a->re), sizeof(regex_t));
84}
85
[e187445]86void owl_regex_free(owl_regex *re)
87{
[7d4fbcd]88  if (re->string) owl_free(re->string);
89
90  /* do we need to free the regular expression? */
91}
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