diff options
Diffstat (limited to 'xdiff/xutils.c')
| -rw-r--r-- | xdiff/xutils.c | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/xdiff/xutils.c b/xdiff/xutils.c index f91b403475..f7bdd395ad 100644 --- a/xdiff/xutils.c +++ b/xdiff/xutils.c @@ -186,12 +186,61 @@ long xdl_guess_lines(mmfile_t *mf) { return nl + 1; } +int xdl_recmatch(const char *l1, long s1, const char *l2, long s2, long flags) +{ + int i1, i2; + + if (flags & XDF_IGNORE_WHITESPACE) { + for (i1 = i2 = 0; i1 < s1 && i2 < s2; i1++, i2++) { + if (isspace(l1[i1])) + while (isspace(l1[i1]) && i1 < s1) + i1++; + else if (isspace(l2[i2])) + while (isspace(l2[i2]) && i2 < s2) + i2++; + else if (l1[i1] != l2[i2]) + return l2[i2] - l1[i1]; + } + if (i1 >= s1) + return 1; + else if (i2 >= s2) + return -1; + } else if (flags & XDF_IGNORE_WHITESPACE_CHANGE) { + for (i1 = i2 = 0; i1 < s1 && i2 < s2; i1++, i2++) { + if (isspace(l1[i1])) { + if (!isspace(l2[i2])) + return -1; + while (isspace(l1[i1]) && i1 < s1) + i1++; + while (isspace(l2[i2]) && i2 < s2) + i2++; + } else if (l1[i1] != l2[i2]) + return l2[i2] - l1[i1]; + } + if (i1 >= s1) + return 1; + else if (i2 >= s2) + return -1; + } else + return s1 == s2 && !memcmp(l1, l2, s1); + + return 0; +} -unsigned long xdl_hash_record(char const **data, char const *top) { +unsigned long xdl_hash_record(char const **data, char const *top, long flags) { unsigned long ha = 5381; char const *ptr = *data; for (; ptr < top && *ptr != '\n'; ptr++) { + if (isspace(*ptr) && (flags & XDF_WHITESPACE_FLAGS)) { + while (ptr < top && isspace(*ptr) && ptr[1] != '\n') + ptr++; + if (flags & XDF_IGNORE_WHITESPACE_CHANGE) { + ha += (ha << 5); + ha ^= (unsigned long) ' '; + } + continue; + } ha += (ha << 5); ha ^= (unsigned long) *ptr; } |