source: regex.c @ e187445

barnowl_perlaimdebianowlrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since e187445 was e187445, checked in by James M. Kretchmar <kretch@mit.edu>, 17 years ago
reformatted filter, filterelement and regex to new code style
  • Property mode set to 100644
File size: 1.4 KB
Line 
1#include <string.h>
2#include "owl.h"
3
4static const char fileIdent[] = "$Id$";
5
6void owl_regex_init(owl_regex *re)
7{
8  re->negate=0;
9  re->string=NULL;
10}
11
12int owl_regex_create(owl_regex *re, char *string)
13{
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);
34    re->string=NULL;
35    return(-1);
36  }
37
38  return(0);
39}
40
41int owl_regex_compare(owl_regex *re, char *string)
42{
43  int out, ret;
44
45  /* if the regex is not set we match */
46  if (!owl_regex_is_set(re)) {
47    return(0);
48  }
49 
50  ret=regexec(&(re->re), string, 0, NULL, 0);
51  out=ret;
52  if (re->negate) {
53    out=!out;
54  }
55  return(out);
56}
57
58int owl_regex_is_set(owl_regex *re)
59{
60  if (re->string) return(1);
61  return(0);
62}
63
64char *owl_regex_get_string(owl_regex *re)
65{
66  return(re->string);
67}
68
69void owl_regex_copy(owl_regex *a, owl_regex *b)
70{
71  b->negate=a->negate;
72  b->string=owl_strdup(a->string);
73  memcpy(&(b->re), &(a->re), sizeof(regex_t));
74}
75
76void owl_regex_free(owl_regex *re)
77{
78  if (re->string) owl_free(re->string);
79
80  /* do we need to free the regular expression? */
81}
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