diff options
Diffstat (limited to 'libc/misc/regex/regcomp.c')
| -rw-r--r-- | libc/misc/regex/regcomp.c | 75 |
1 files changed, 33 insertions, 42 deletions
diff --git a/libc/misc/regex/regcomp.c b/libc/misc/regex/regcomp.c index bacba36c6..e14243051 100644 --- a/libc/misc/regex/regcomp.c +++ b/libc/misc/regex/regcomp.c @@ -344,7 +344,7 @@ re_compile_fastmap_iter (regex_t *bufp, const re_dfastate_t *init_state, if (cset->non_match || cset->ncoll_syms || cset->nequiv_classes || cset->nranges || cset->nchar_classes) { -# ifdef _LIBC +# if 0 if (_NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES) != 0) { /* In this case we want to catch the bytes which are @@ -364,7 +364,7 @@ re_compile_fastmap_iter (regex_t *bufp, const re_dfastate_t *init_state, for (i = 0; i < SBC_MAX; ++i) if (__btowc (i) == WEOF) re_set_fastmap (fastmap, icase, i); -# endif /* not _LIBC */ +# endif } for (i = 0; i < cset->nmbchars; ++i) { @@ -610,18 +610,16 @@ libc_hidden_def(regfree) /* Entry points compatible with 4.2 BSD regex library. We don't define them unless specifically requested. */ -#if defined _REGEX_RE_COMP || defined _LIBC || defined __UCLIBC__ +#if defined _REGEX_RE_COMP || defined __UCLIBC__ /* BSD has one and only one pattern buffer. */ static struct re_pattern_buffer *re_comp_buf; char * -# if defined _LIBC || defined __UCLIBC__ -/* Make these definitions weak in libc, so POSIX programs can redefine +/* Make BCD definitions weak in libc, so POSIX programs can redefine these names if they don't use our functions, and still use regcomp/regexec above without link errors. */ weak_function -# endif re_comp (const char *s) { reg_errcode_t ret; @@ -679,7 +677,7 @@ re_comp (const char *s) return (char *) gettext (__re_error_msgid + __re_error_msgid_idx[(int) ret]); } -#ifdef _LIBC +#if 0 libc_freeres_fn (free_mem) { regfree (re_comp_buf); @@ -801,7 +799,7 @@ static reg_errcode_t init_dfa (re_dfa_t *dfa, size_t pat_len) { unsigned int table_size; -#ifndef _LIBC +#if 1 char *codeset_name; #endif @@ -830,7 +828,7 @@ init_dfa (re_dfa_t *dfa, size_t pat_len) #else dfa->mb_cur_max = 1; #endif -#ifdef _LIBC +#if 0 if (dfa->mb_cur_max == 6 && strcmp (_NL_CURRENT (LC_CTYPE, _NL_CTYPE_CODESET_NAME), "UTF-8") == 0) dfa->is_utf8 = 1; @@ -880,7 +878,7 @@ init_dfa (re_dfa_t *dfa, size_t pat_len) wint_t wch = __btowc (ch); if (wch != WEOF) dfa->sb_char[i] |= (bitset_word_t) 1 << j; -# ifndef _LIBC +# if 1 if (isascii (ch) && wch != ch) dfa->map_notascii = 1; # endif @@ -2541,8 +2539,8 @@ parse_dup_op (bin_tree_t *elem, re_string_t *regexp, re_dfa_t *dfa, I'm not sure, but maybe enough. */ #define BRACKET_NAME_BUF_SIZE 32 -#ifndef _LIBC - /* Local function for parse_bracket_exp only used in case of NOT _LIBC. +#if 1 + /* Local function for parse_bracket_exp only used in case of NOT glibc. Build the range expression which starts from START_ELEM, and ends at END_ELEM. The result are written to MBCSET and SBCSET. RANGE_ALLOC is the allocated size of mbcset->range_starts, and @@ -2599,7 +2597,7 @@ build_range_exp (bitset_t sbcset, bracket_elem_t *start_elem, return REG_ERANGE; /* Got valid collation sequence values, add them as a new entry. - However, for !_LIBC we have no collation elements: if the + However, for !glibc we have no collation elements: if the character set is single byte, the single byte character set that we build below suffices. parse_bracket_exp passes no MBCSET if dfa->mb_cur_max == 1. */ @@ -2661,10 +2659,10 @@ build_range_exp (bitset_t sbcset, bracket_elem_t *start_elem, # endif /* not RE_ENABLE_I18N */ return REG_NOERROR; } -#endif /* not _LIBC */ +#endif -#ifndef _LIBC -/* Helper function for parse_bracket_exp only used in case of NOT _LIBC.. +#if 1 +/* Helper function for parse_bracket_exp only used in case of NOT glibc. Build the collating element which is represented by NAME. The result are written to MBCSET and SBCSET. COLL_SYM_ALLOC is the allocated size of mbcset->coll_sym, is a @@ -2682,13 +2680,10 @@ build_collating_symbol (bitset_t sbcset, const unsigned char *name) size_t name_len = strlen ((const char *) name); if (BE (name_len != 1, 0)) return REG_ECOLLATE; - else - { - bitset_set (sbcset, name[0]); - return REG_NOERROR; - } + bitset_set (sbcset, name[0]); + return REG_NOERROR; } -#endif /* not _LIBC */ +#endif /* This function parse bracket expression like "[abc]", "[a-c]", "[[.a-a.]]" etc. */ @@ -2697,7 +2692,7 @@ static bin_tree_t * parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token, reg_syntax_t syntax, reg_errcode_t *err) { -#ifdef _LIBC +#if 0 const unsigned char *collseqmb; const char *collseqwc; uint32_t nrules; @@ -2705,15 +2700,13 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token, const int32_t *symb_table; const unsigned char *extra; - /* Local function for parse_bracket_exp used in _LIBC environement. + /* Local function for parse_bracket_exp used in glibc. Seek the collating symbol entry correspondings to NAME. Return the index of the symbol in the SYMB_TABLE. */ auto __inline__ int32_t __attribute ((always_inline)) - seek_collating_symbol_entry (name, name_len) - const unsigned char *name; - size_t name_len; + seek_collating_symbol_entry (const unsigned char *name, size_t name_len) { int32_t hash = elem_hash ((const char *) name, name_len); int32_t elem = hash % table_size; @@ -2743,14 +2736,13 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token, return elem; } - /* Local function for parse_bracket_exp used in _LIBC environement. + /* Local function for parse_bracket_exp used in glibc. Look up the collation sequence value of BR_ELEM. Return the value if succeeded, UINT_MAX otherwise. */ auto __inline__ unsigned int __attribute ((always_inline)) - lookup_collation_sequence_value (br_elem) - bracket_elem_t *br_elem; + lookup_collation_sequence_value (bracket_elem_t *br_elem) { if (br_elem->type == SB_CHAR) { @@ -2808,7 +2800,7 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token, return UINT_MAX; } - /* Local function for parse_bracket_exp used in _LIBC environement. + /* Local function for parse_bracket_exp used in glibc. Build the range expression which starts from START_ELEM, and ends at END_ELEM. The result are written to MBCSET and SBCSET. RANGE_ALLOC is the allocated size of mbcset->range_starts, and @@ -2892,7 +2884,7 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token, return REG_NOERROR; } - /* Local function for parse_bracket_exp used in _LIBC environement. + /* Local function for parse_bracket_exp used in glibc. Build the collating element which is represented by NAME. The result are written to MBCSET and SBCSET. COLL_SYM_ALLOC is the allocated size of mbcset->coll_sym, is a @@ -2900,11 +2892,10 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token, auto __inline__ reg_errcode_t __attribute ((always_inline)) - build_collating_symbol (sbcset, mbcset, coll_sym_alloc, name) - re_charset_t *mbcset; - int *coll_sym_alloc; - bitset_t sbcset; - const unsigned char *name; + build_collating_symbol (re_charset_t *mbcset, + int *coll_sym_alloc, + bitset_t sbcset, + const unsigned char *name) { int32_t elem, idx; size_t name_len = strlen ((const char *) name); @@ -2971,7 +2962,7 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token, bin_tree_t *work_tree; int token_len; int first_round = 1; -#ifdef _LIBC +#if 0 collseqmb = (const unsigned char *) _NL_CURRENT (LC_COLLATE, _NL_COLLATE_COLLSEQMB); nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); @@ -3092,7 +3083,7 @@ parse_bracket_exp (re_string_t *regexp, re_dfa_t *dfa, re_token_t *token, token_len = peek_token_bracket (token, regexp, syntax); -#ifdef _LIBC +#if 0 *err = build_range_exp (sbcset, mbcset, &range_alloc, &start_elem, &end_elem); #else @@ -3345,7 +3336,7 @@ build_equiv_class (bitset_t sbcset, re_charset_t *mbcset, build_equiv_class (bitset_t sbcset, const unsigned char *name) #endif { -#ifdef _LIBC +#if 0 uint32_t nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES); if (nrules != 0) { @@ -3414,7 +3405,7 @@ build_equiv_class (bitset_t sbcset, const unsigned char *name) mbcset->equiv_classes[mbcset->nequiv_classes++] = idx1; } else -#endif /* _LIBC */ +#endif { if (BE (strlen ((const char *) name) != 1, 0)) return REG_ECOLLATE; @@ -3654,7 +3645,7 @@ static void free_charset (re_charset_t *cset) { re_free (cset->mbchars); -# ifdef _LIBC +# if 0 re_free (cset->coll_syms); re_free (cset->equiv_classes); re_free (cset->range_starts); |