diff options
Diffstat (limited to 'support/regcomp.c')
| -rw-r--r-- | support/regcomp.c | 43 |
1 files changed, 21 insertions, 22 deletions
diff --git a/support/regcomp.c b/support/regcomp.c index c45e91fc..2b662edb 100644 --- a/support/regcomp.c +++ b/support/regcomp.c @@ -67,7 +67,7 @@ static reg_errcode_t calc_inveclosure (re_dfa_t *dfa); static int fetch_number (re_string_t *input, re_token_t *token, reg_syntax_t syntax); static int peek_token (re_token_t *token, re_string_t *input, - reg_syntax_t syntax) internal_function; + reg_syntax_t syntax); static bin_tree_t *parse (re_string_t *regexp, regex_t *preg, reg_syntax_t syntax, reg_errcode_t *err); static bin_tree_t *parse_reg_exp (re_string_t *regexp, regex_t *preg, @@ -542,6 +542,7 @@ regcomp (regex_t *__restrict preg, const char *__restrict pattern, int cflags) return (int) ret; } #ifdef _LIBC +libc_hidden_def (__regcomp) weak_alias (__regcomp, regcomp) #endif @@ -672,6 +673,7 @@ regfree (regex_t *preg) preg->translate = NULL; } #ifdef _LIBC +libc_hidden_def (__regfree) weak_alias (__regfree, regfree) #endif @@ -958,7 +960,6 @@ init_dfa (re_dfa_t *dfa, size_t pat_len) character used by some operators like "\<", "\>", etc. */ static void -internal_function init_word_char (re_dfa_t *dfa) { dfa->word_ops_used = 1; @@ -967,26 +968,29 @@ init_word_char (re_dfa_t *dfa) #ifndef GAWK if (BE (dfa->map_notascii == 0, 1)) { - if (sizeof (dfa->word_char[0]) == 8) - { - /* The extra temporaries here avoid "implicitly truncated" - warnings in the case when this is dead code, i.e. 32-bit. */ - const uint64_t wc0 = UINT64_C (0x03ff000000000000); - const uint64_t wc1 = UINT64_C (0x07fffffe87fffffe); - dfa->word_char[0] = wc0; - dfa->word_char[1] = wc1; + /* Avoid uint32_t and uint64_t as some non-GCC platforms lack + them, an issue when this code is used in Gnulib. */ + bitset_word_t bits0 = 0x00000000; + bitset_word_t bits1 = 0x03ff0000; + bitset_word_t bits2 = 0x87fffffe; + bitset_word_t bits3 = 0x07fffffe; + if (BITSET_WORD_BITS == 64) + { + /* Pacify gcc -Woverflow on 32-bit platformns. */ + dfa->word_char[0] = bits1 << 31 << 1 | bits0; + dfa->word_char[1] = bits3 << 31 << 1 | bits2; i = 2; } - else if (sizeof (dfa->word_char[0]) == 4) + else if (BITSET_WORD_BITS == 32) { - dfa->word_char[0] = UINT32_C (0x00000000); - dfa->word_char[1] = UINT32_C (0x03ff0000); - dfa->word_char[2] = UINT32_C (0x87fffffe); - dfa->word_char[3] = UINT32_C (0x07fffffe); + dfa->word_char[0] = bits0; + dfa->word_char[1] = bits1; + dfa->word_char[2] = bits2; + dfa->word_char[3] = bits3; i = 4; } else - abort (); + goto general_case; ch = 128; if (BE (dfa->is_utf8, 1)) @@ -997,6 +1001,7 @@ init_word_char (re_dfa_t *dfa) } #endif + general_case: for (; i < BITSET_WORDS; ++i) for (int j = 0; j < BITSET_WORD_BITS; ++j, ++ch) if (isalnum (ch) || ch == '_') @@ -1509,7 +1514,6 @@ link_nfa_nodes (void *extra, bin_tree_t *node) to their own constraint. */ static reg_errcode_t -internal_function duplicate_node_closure (re_dfa_t *dfa, int top_org_node, int top_clone_node, int root_node, unsigned int init_constraint) { @@ -1798,7 +1802,6 @@ calc_eclosure_iter (re_node_set *new_set, re_dfa_t *dfa, int node, int root) We must not use this function inside bracket expressions. */ static void -internal_function fetch_token (re_token_t *result, re_string_t *input, reg_syntax_t syntax) { re_string_skip_bytes (input, peek_token (result, input, syntax)); @@ -1808,7 +1811,6 @@ fetch_token (re_token_t *result, re_string_t *input, reg_syntax_t syntax) We must not use this function inside bracket expressions. */ static int -internal_function peek_token (re_token_t *token, re_string_t *input, reg_syntax_t syntax) { unsigned char c; @@ -2047,7 +2049,6 @@ peek_token (re_token_t *token, re_string_t *input, reg_syntax_t syntax) We must not use this function out of bracket expressions. */ static int -internal_function peek_token_bracket (re_token_t *token, re_string_t *input, reg_syntax_t syntax) { unsigned char c; @@ -2679,7 +2680,6 @@ parse_dup_op (bin_tree_t *elem, re_string_t *regexp, re_dfa_t *dfa, update it. */ static reg_errcode_t -internal_function # ifdef RE_ENABLE_I18N build_range_exp (reg_syntax_t syntax, bitset_t sbcset, re_charset_t *mbcset, int *range_alloc, bracket_elem_t *start_elem, @@ -2815,7 +2815,6 @@ build_range_exp (reg_syntax_t syntax, bitset_t sbcset, pointer argument since we may update it. */ static reg_errcode_t -internal_function # ifdef RE_ENABLE_I18N build_collating_symbol (bitset_t sbcset, re_charset_t *mbcset, int *coll_sym_alloc, const unsigned char *name) |