diff options
Diffstat (limited to 'posix')
| -rw-r--r-- | posix/regex.c | 45 |
1 files changed, 28 insertions, 17 deletions
diff --git a/posix/regex.c b/posix/regex.c index f1d066b844..b4adfcf6ed 100644 --- a/posix/regex.c +++ b/posix/regex.c @@ -3507,23 +3507,19 @@ compile_range (range_start_char, p_ptr, pend, translate, syntax, b) unsigned char *b; { unsigned this_char; - const char *p = *p_ptr; reg_errcode_t ret; - char range_start[2]; - char range_end[2]; - char ch[2]; +#if _LIBC + const unsigned char *collseq; + unsigned int start_colseq; + unsigned int end_colseq; +#else + unsigned end_char; +#endif if (p == pend) return REG_ERANGE; - /* Fetch the endpoints without translating them; the - appropriate translation is done in the bit-setting loop below. */ - range_start[0] = TRANSLATE (range_start_char); - range_start[1] = '\0'; - range_end[0] = TRANSLATE (p[0]); - range_end[1] = '\0'; - /* Have to increment the pointer into the pattern string, so the caller isn't still at the ending character. */ (*p_ptr)++; @@ -3531,19 +3527,34 @@ compile_range (range_start_char, p_ptr, pend, translate, syntax, b) /* Report an error if the range is empty and the syntax prohibits this. */ ret = syntax & RE_NO_EMPTY_RANGES ? REG_ERANGE : REG_NOERROR; - /* Here we see why `this_char' has to be larger than an `unsigned - char' -- we would otherwise go into an infinite loop, since all - characters <= 0xff. */ - ch[1] = '\0'; +#if _LIBC + collseq = (const unsigned char *) _NL_CURRENT (LC_COLLATE, + _NL_COLLATE_COLLSEQMB); + + start_colseq = collseq[TRANSLATE (range_start_char)]; + end_colseq = collseq[TRANSLATE (p[0])]; for (this_char = 0; this_char <= (unsigned char) -1; ++this_char) { - ch[0] = this_char; - if (strcoll (range_start, ch) <= 0 && strcoll (ch, range_end) <= 0) + unsigned int this_colseq = collseq[TRANSLATE (this_char)]; + + if (start_colseq <= this_colseq && this_colseq <= end_colseq) { SET_LIST_BIT (TRANSLATE (this_char)); ret = REG_NOERROR; } } +#else + /* Here we see why `this_char' has to be larger than an `unsigned + char' -- we would otherwise go into an infinite loop, since all + characters <= 0xff. */ + range_start_char = TRANSLATE (range_start_char); + end_char = TRANSLATE (p[0]); + for (this_char = range_start_char; this_char <= end_char; ++this_char) + { + SET_LIST_BIT (TRANSLATE (this_char)); + ret = REG_NOERROR; + } +#endif return ret; } |