| 75 | } |
| 76 | |
| 77 | static unsigned int contains(mmfile_t *mf, regex_t *regexp, kwset_t kws, |
| 78 | unsigned int limit) |
| 79 | { |
| 80 | unsigned int cnt = 0; |
| 81 | unsigned long sz = mf->size; |
| 82 | const char *data = mf->ptr; |
| 83 | |
| 84 | if (regexp) { |
| 85 | regmatch_t regmatch; |
| 86 | int flags = 0; |
| 87 | |
| 88 | while (sz && |
| 89 | !regexec_buf(regexp, data, sz, 1, ®match, flags)) { |
| 90 | flags |= REG_NOTBOL; |
| 91 | data += regmatch.rm_eo; |
| 92 | sz -= regmatch.rm_eo; |
| 93 | if (sz && regmatch.rm_so == regmatch.rm_eo) { |
| 94 | data++; |
| 95 | sz--; |
| 96 | } |
| 97 | cnt++; |
| 98 | |
| 99 | if (limit && cnt == limit) |
| 100 | return cnt; |
| 101 | } |
| 102 | |
| 103 | } else { /* Classic exact string match */ |
| 104 | while (sz) { |
| 105 | struct kwsmatch kwsm; |
| 106 | size_t offset = kwsexec(kws, data, sz, &kwsm); |
| 107 | if (offset == -1) |
| 108 | break; |
| 109 | sz -= offset + kwsm.size[0]; |
| 110 | data += offset + kwsm.size[0]; |
| 111 | cnt++; |
| 112 | |
| 113 | if (limit && cnt == limit) |
| 114 | return cnt; |
| 115 | } |
| 116 | } |
| 117 | return cnt; |
| 118 | } |
| 119 | |
| 120 | static int has_changes(mmfile_t *one, mmfile_t *two, |
| 121 | struct diff_options *o UNUSED, |
no test coverage detected