summaryrefslogtreecommitdiff
path: root/sample/bug_fix.c
blob: 44802efab1579b1b06aaacc7c57f6f1d86f3c950 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
/*
 * bug_fix.c
 */
#include <stdio.h>
#include "oniguruma.h"

static OnigCaseFoldType CF = ONIGENC_CASE_FOLD_MIN;

static int
search(regex_t* reg, unsigned char* str, unsigned char* end)
{
  int r;
  unsigned char *start, *range;
  OnigRegion *region;

  region = onig_region_new();

  start = str;
  range = end;
  r = onig_search(reg, str, end, start, range, region, ONIG_OPTION_NONE);
  if (r >= 0) {
    int i;

    fprintf(stderr, "match at %d  (%s)\n", r,
            ONIGENC_NAME(onig_get_encoding(reg)));
    for (i = 0; i < region->num_regs; i++) {
      fprintf(stderr, "%d: (%d-%d)\n", i, region->beg[i], region->end[i]);
    }
  }
  else if (r == ONIG_MISMATCH) {
    fprintf(stderr, "search fail (%s)\n",
            ONIGENC_NAME(onig_get_encoding(reg)));
  }
  else { /* error */
    char s[ONIG_MAX_ERROR_MESSAGE_LEN];
    onig_error_code_to_str((UChar* )s, r);
    fprintf(stderr, "ERROR: %s\n", s);
    fprintf(stderr, "  (%s)\n", ONIGENC_NAME(onig_get_encoding(reg)));
    return -1;
  }

  onig_region_free(region, 1 /* 1:free self, 0:free contents only */);
  return 0;
}

static int
exec_deluxe(OnigEncoding pattern_enc, OnigEncoding str_enc,
            OnigOptionType options, char* apattern, char* astr)
{
  int r;
  unsigned char *end;
  regex_t* reg;
  OnigCompileInfo ci;
  OnigErrorInfo einfo;
  UChar* pattern = (UChar* )apattern;
  UChar* str     = (UChar* )astr;

  onig_initialize(&str_enc, 1);

  ci.num_of_elements = 5;
  ci.pattern_enc = pattern_enc;
  ci.target_enc  = str_enc;
  ci.syntax      = ONIG_SYNTAX_DEFAULT;
  ci.option      = options;
  ci.case_fold_flag  = CF;

  r = onig_new_deluxe(&reg, pattern,
                      pattern + onigenc_str_bytelen_null(pattern_enc, pattern),
                      &ci, &einfo);
  if (r != ONIG_NORMAL) {
    char s[ONIG_MAX_ERROR_MESSAGE_LEN];
    onig_error_code_to_str((UChar* )s, r, &einfo);
    fprintf(stderr, "ERROR: %s\n", s);
    return -1;
  }

  end = str + onigenc_str_bytelen_null(str_enc, str);
  r = search(reg, str, end);

  onig_free(reg);
  onig_end();
  return 0;
}

static int
exec(OnigEncoding enc, OnigOptionType options, char* apattern, char* astr)
{
  int r;
  unsigned char *end;
  regex_t* reg;
  OnigErrorInfo einfo;
  UChar* pattern = (UChar* )apattern;
  UChar* str     = (UChar* )astr;

  onig_initialize(&enc, 1);

  r = onig_new(&reg, pattern,
	       pattern + onigenc_str_bytelen_null(enc, pattern),
	       options, enc, ONIG_SYNTAX_DEFAULT, &einfo);
  if (r != ONIG_NORMAL) {
    char s[ONIG_MAX_ERROR_MESSAGE_LEN];
    onig_error_code_to_str((UChar* )s, r, &einfo);
    fprintf(stderr, "ERROR: %s\n", s);
    return -1;
  }

  end = str + onigenc_str_bytelen_null(enc, str);
  r = search(reg, str, end);

  onig_free(reg);
  onig_end();
  return 0;
}



extern int main(int argc, char* argv[])
{
  /* fix ignore case in look-behind
     commit: 3340ec2cc5627172665303fe248c9793354d2251 */
  exec_deluxe(ONIG_ENCODING_UTF8, ONIG_ENCODING_UTF8,
              ONIG_OPTION_IGNORECASE,
              "(?<=\305\211)a", "\312\274na"); /* \u{0149}a  \u{02bc}na */

  exec(ONIG_ENCODING_UTF8, ONIG_OPTION_NONE, "(\\2)(\\1)", "aa"); /* fail. */

  exec(ONIG_ENCODING_UTF8, ONIG_OPTION_FIND_LONGEST,
       "a*", "aa aaa aaaa aaaaa "); /* match 12-17 */

  return 0;
}