/* Extended regular expression matching and search library.
- Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2002-2007,2009,2010,2011,2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
static reg_errcode_t re_compile_internal (regex_t *preg, const char * pattern,
size_t length, reg_syntax_t syntax);
const re_dfastate_t *init_state,
char *fastmap);
static reg_errcode_t init_dfa (re_dfa_t *dfa, size_t pat_len);
-static void init_word_char (re_dfa_t *dfa);
#ifdef RE_ENABLE_I18N
static void free_charset (re_charset_t *cset);
#endif /* RE_ENABLE_I18N */
static reg_errcode_t calc_first (void *extra, bin_tree_t *node);
static reg_errcode_t calc_next (void *extra, bin_tree_t *node);
static reg_errcode_t link_nfa_nodes (void *extra, bin_tree_t *node);
-static reg_errcode_t duplicate_node_closure (re_dfa_t *dfa, int top_org_node,
- int top_clone_node, int root_node,
- unsigned int constraint);
static int duplicate_node (re_dfa_t *dfa, int org_idx, unsigned int constraint);
static int search_duplicated_node (const re_dfa_t *dfa, int org_node,
unsigned int constraint);
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 void fetch_token (re_token_t *result, re_string_t *input,
- reg_syntax_t syntax);
static int peek_token (re_token_t *token, re_string_t *input,
- reg_syntax_t syntax);
-static int peek_token_bracket (re_token_t *token, re_string_t *input,
- reg_syntax_t syntax);
+ reg_syntax_t syntax) internal_function;
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,
static reg_errcode_t parse_bracket_symbol (bracket_elem_t *elem,
re_string_t *regexp,
re_token_t *token);
-#ifndef _LIBC
-# ifdef RE_ENABLE_I18N
-static reg_errcode_t build_range_exp (re_bitset_ptr_t sbcset,
- re_charset_t *mbcset, int *range_alloc,
- bracket_elem_t *start_elem,
- bracket_elem_t *end_elem);
-static reg_errcode_t build_collating_symbol (re_bitset_ptr_t sbcset,
- re_charset_t *mbcset,
- int *coll_sym_alloc,
- const unsigned char *name);
-# else /* not RE_ENABLE_I18N */
-static reg_errcode_t build_range_exp (re_bitset_ptr_t sbcset,
- bracket_elem_t *start_elem,
- bracket_elem_t *end_elem);
-static reg_errcode_t build_collating_symbol (re_bitset_ptr_t sbcset,
- const unsigned char *name);
-# endif /* not RE_ENABLE_I18N */
-#endif /* not _LIBC */
#ifdef RE_ENABLE_I18N
-static reg_errcode_t build_equiv_class (re_bitset_ptr_t sbcset,
+static reg_errcode_t build_equiv_class (bitset_t sbcset,
re_charset_t *mbcset,
int *equiv_class_alloc,
const unsigned char *name);
-static reg_errcode_t build_charclass (unsigned RE_TRANSLATE_TYPE trans,
- re_bitset_ptr_t sbcset,
+static reg_errcode_t build_charclass (RE_TRANSLATE_TYPE trans,
+ bitset_t sbcset,
re_charset_t *mbcset,
int *char_class_alloc,
const unsigned char *class_name,
reg_syntax_t syntax);
#else /* not RE_ENABLE_I18N */
-static reg_errcode_t build_equiv_class (re_bitset_ptr_t sbcset,
+static reg_errcode_t build_equiv_class (bitset_t sbcset,
const unsigned char *name);
-static reg_errcode_t build_charclass (unsigned RE_TRANSLATE_TYPE trans,
- re_bitset_ptr_t sbcset,
+static reg_errcode_t build_charclass (RE_TRANSLATE_TYPE trans,
+ bitset_t sbcset,
const unsigned char *class_name,
reg_syntax_t syntax);
#endif /* not RE_ENABLE_I18N */
static bin_tree_t *build_charclass_op (re_dfa_t *dfa,
- unsigned RE_TRANSLATE_TYPE trans,
+ RE_TRANSLATE_TYPE trans,
const unsigned char *class_name,
const unsigned char *extra,
int non_match, reg_errcode_t *err);
Compile fastmap for the initial_state INIT_STATE. */
static void
-re_compile_fastmap_iter (bufp, init_state, fastmap)
- regex_t *bufp;
- const re_dfastate_t *init_state;
- char *fastmap;
+re_compile_fastmap_iter (regex_t *bufp, const re_dfastate_t *init_state,
+ char *fastmap)
{
re_dfa_t *dfa = (re_dfa_t *) bufp->buffer;
int node_cnt;
&& dfa->nodes[node].type == CHARACTER
&& dfa->nodes[node].mb_partial)
*p++ = dfa->nodes[node].opr.c;
- memset (&state, 0, sizeof (state));
- if (mbrtowc (&wc, (const char *) buf, p - buf,
- &state) == p - buf
+ memset (&state, '\0', sizeof (state));
+ if (__mbrtowc (&wc, (const char *) buf, p - buf,
+ &state) == p - buf
&& (__wcrtomb ((char *) buf, towlower (wc), &state)
!= (size_t) -1))
re_set_fastmap (fastmap, 0, buf[0]);
}
else if (type == SIMPLE_BRACKET)
{
- int i, j, ch;
- for (i = 0, ch = 0; i < BITSET_UINTS; ++i)
- for (j = 0; j < UINT_BITS; ++j, ++ch)
- if (dfa->nodes[node].opr.sbcset[i] & (1u << j))
- re_set_fastmap (fastmap, icase, ch);
+ int i, ch;
+ for (i = 0, ch = 0; i < BITSET_WORDS; ++i)
+ {
+ int j;
+ bitset_word_t w = dfa->nodes[node].opr.sbcset[i];
+ for (j = 0; j < BITSET_WORD_BITS; ++j, ++ch)
+ if (w & ((bitset_word_t) 1 << j))
+ re_set_fastmap (fastmap, icase, ch);
+ }
}
#ifdef RE_ENABLE_I18N
else if (type == COMPLEX_BRACKET)
{
- int i;
re_charset_t *cset = dfa->nodes[node].opr.mbcset;
- if (cset->non_match || cset->ncoll_syms || cset->nequiv_classes
- || cset->nranges || cset->nchar_classes)
- {
+ int i;
+
# ifdef _LIBC
- if (_NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES) != 0)
+ /* See if we have to try all bytes which start multiple collation
+ elements.
+ e.g. In da_DK, we want to catch 'a' since "aa" is a valid
+ collation element, and don't catch 'b' since 'b' is
+ the only collation element which starts from 'b' (and
+ it is caught by SIMPLE_BRACKET). */
+ if (_NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES) != 0
+ && (cset->ncoll_syms || cset->nranges))
{
- /* In this case we want to catch the bytes which are
- the first byte of any collation elements.
- e.g. In da_DK, we want to catch 'a' since "aa"
- is a valid collation element, and don't catch
- 'b' since 'b' is the only collation element
- which starts from 'b'. */
- int j, ch;
const int32_t *table = (const int32_t *)
_NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEMB);
- for (i = 0, ch = 0; i < BITSET_UINTS; ++i)
- for (j = 0; j < UINT_BITS; ++j, ++ch)
- if (table[ch] < 0)
- re_set_fastmap (fastmap, icase, ch);
+ for (i = 0; i < SBC_MAX; ++i)
+ if (table[i] < 0)
+ re_set_fastmap (fastmap, icase, i);
}
-# else
- if (dfa->mb_cur_max > 1)
- for (i = 0; i < SBC_MAX; ++i)
- if (__btowc (i) == WEOF)
- re_set_fastmap (fastmap, icase, i);
-# endif /* not _LIBC */
+# endif /* _LIBC */
+
+ /* See if we have to start the match at all multibyte characters,
+ i.e. where we would not find an invalid sequence. This only
+ applies to multibyte character sets; for single byte character
+ sets, the SIMPLE_BRACKET again suffices. */
+ if (dfa->mb_cur_max > 1
+ && (cset->nchar_classes || cset->non_match || cset->nranges
+# ifdef _LIBC
+ || cset->nequiv_classes
+# endif /* _LIBC */
+ ))
+ {
+ unsigned char c = 0;
+ do
+ {
+ mbstate_t mbs;
+ memset (&mbs, 0, sizeof (mbs));
+ if (__mbrtowc (NULL, (char *) &c, 1, &mbs) == (size_t) -2)
+ re_set_fastmap (fastmap, false, (int) c);
+ }
+ while (++c != 0);
}
- for (i = 0; i < cset->nmbchars; ++i)
+
+ else
{
- char buf[256];
- mbstate_t state;
- memset (&state, '\0', sizeof (state));
- if (__wcrtomb (buf, cset->mbchars[i], &state) != (size_t) -1)
- re_set_fastmap (fastmap, icase, *(unsigned char *) buf);
- if ((bufp->syntax & RE_ICASE) && dfa->mb_cur_max > 1)
+ /* ... Else catch all bytes which can start the mbchars. */
+ for (i = 0; i < cset->nmbchars; ++i)
{
- if (__wcrtomb (buf, towlower (cset->mbchars[i]), &state)
- != (size_t) -1)
- re_set_fastmap (fastmap, 0, *(unsigned char *) buf);
+ char buf[256];
+ mbstate_t state;
+ memset (&state, '\0', sizeof (state));
+ if (__wcrtomb (buf, cset->mbchars[i], &state) != (size_t) -1)
+ re_set_fastmap (fastmap, icase, *(unsigned char *) buf);
+ if ((bufp->syntax & RE_ICASE) && dfa->mb_cur_max > 1)
+ {
+ if (__wcrtomb (buf, towlower (cset->mbchars[i]), &state)
+ != (size_t) -1)
+ re_set_fastmap (fastmap, false, *(unsigned char *) buf);
+ }
}
}
}
UTF-8 is used. Otherwise we would allocate memory just to initialize
it the same all the time. UTF-8 is the preferred encoding so this is
a worthwhile optimization. */
-static const bitset utf8_sb_map =
+static const bitset_t utf8_sb_map =
{
/* Set the first 128 bits. */
-# if UINT_MAX == 0xffffffff
- 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff
-# else
-# error "Add case for new unsigned int size"
-# endif
+ [0 ... 0x80 / BITSET_WORD_BITS - 1] = BITSET_WORD_MAX
};
#endif
re_dfastate_t *state = entry->array[j];
free_state (state);
}
- re_free (entry->array);
+ re_free (entry->array);
}
re_free (dfa->state_table);
#ifdef RE_ENABLE_I18N
SYNTAX indicate regular expression's syntax. */
static reg_errcode_t
-re_compile_internal (preg, pattern, length, syntax)
- regex_t *preg;
- const char * pattern;
- size_t length;
- reg_syntax_t syntax;
+re_compile_internal (regex_t *preg, const char * pattern, size_t length,
+ reg_syntax_t syntax)
{
reg_errcode_t err = REG_NOERROR;
re_dfa_t *dfa;
as the initial length of some arrays. */
static reg_errcode_t
-init_dfa (dfa, pat_len)
- re_dfa_t *dfa;
- size_t pat_len;
+init_dfa (re_dfa_t *dfa, size_t pat_len)
{
unsigned int table_size;
#ifndef _LIBC
{
int i, j, ch;
- dfa->sb_char = (re_bitset_ptr_t) calloc (sizeof (bitset), 1);
+ dfa->sb_char = (re_bitset_ptr_t) calloc (sizeof (bitset_t), 1);
if (BE (dfa->sb_char == NULL, 0))
return REG_ESPACE;
- /* Clear all bits by, then set those corresponding to single
- byte chars. */
- bitset_empty (dfa->sb_char);
-
- for (i = 0, ch = 0; i < BITSET_UINTS; ++i)
- for (j = 0; j < UINT_BITS; ++j, ++ch)
+ /* Set the bits corresponding to single byte chars. */
+ for (i = 0, ch = 0; i < BITSET_WORDS; ++i)
+ for (j = 0; j < BITSET_WORD_BITS; ++j, ++ch)
{
wint_t wch = __btowc (ch);
if (wch != WEOF)
- dfa->sb_char[i] |= 1u << j;
+ dfa->sb_char[i] |= (bitset_word_t) 1 << j;
# ifndef _LIBC
if (isascii (ch) && wch != ch)
dfa->map_notascii = 1;
character used by some operators like "\<", "\>", etc. */
static void
-init_word_char (dfa)
- re_dfa_t *dfa;
+internal_function
+init_word_char (re_dfa_t *dfa)
{
- int i, j, ch;
dfa->word_ops_used = 1;
- for (i = 0, ch = 0; i < BITSET_UINTS; ++i)
- for (j = 0; j < UINT_BITS; ++j, ++ch)
+ int i = 0;
+ int ch = 0;
+ if (BE (dfa->map_notascii == 0, 1))
+ {
+ if (sizeof (dfa->word_char[0]) == 8)
+ {
+ dfa->word_char[0] = UINT64_C (0x03ff000000000000);
+ dfa->word_char[1] = UINT64_C (0x07fffffe87fffffe);
+ i = 2;
+ }
+ else if (sizeof (dfa->word_char[0]) == 4)
+ {
+ 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);
+ i = 4;
+ }
+ else
+ abort ();
+ ch = 128;
+
+ if (BE (dfa->is_utf8, 1))
+ {
+ memset (&dfa->word_char[i], '\0', (SBC_MAX - ch) / 8);
+ return;
+ }
+ }
+
+ for (; i < BITSET_WORDS; ++i)
+ for (int j = 0; j < BITSET_WORD_BITS; ++j, ++ch)
if (isalnum (ch) || ch == '_')
- dfa->word_char[i] |= 1u << j;
+ dfa->word_char[i] |= (bitset_word_t) 1 << j;
}
/* Free the work area which are only used while compiling. */
static void
-free_workarea_compile (preg)
- regex_t *preg;
+free_workarea_compile (regex_t *preg)
{
re_dfa_t *dfa = (re_dfa_t *) preg->buffer;
bin_tree_storage_t *storage, *next;
/* Create initial states for all contexts. */
static reg_errcode_t
-create_initial_state (dfa)
- re_dfa_t *dfa;
+create_initial_state (re_dfa_t *dfa)
{
int first, i;
reg_errcode_t err;
int dest_idx = dfa->edests[node_idx].elems[0];
if (!re_node_set_contains (&init_nodes, dest_idx))
{
- re_node_set_merge (&init_nodes, dfa->eclosures + dest_idx);
+ reg_errcode_t err = re_node_set_merge (&init_nodes,
+ dfa->eclosures
+ + dest_idx);
+ if (err != REG_NOERROR)
+ return err;
i = 0;
}
}
DFA nodes where needed. */
static void
-optimize_utf8 (dfa)
- re_dfa_t *dfa;
+optimize_utf8 (re_dfa_t *dfa)
{
int node, i, mb_chars = 0, has_period = 0;
mb_chars = 1;
break;
case ANCHOR:
- switch (dfa->nodes[node].opr.idx)
+ switch (dfa->nodes[node].opr.ctx_type)
{
case LINE_FIRST:
case LINE_LAST:
case BUF_LAST:
break;
default:
- /* Word anchors etc. cannot be handled. */
+ /* Word anchors etc. cannot be handled. It's okay to test
+ opr.ctx_type since constraints (for all DFA nodes) are
+ created by ORing one or more opr.ctx_type values. */
return;
}
break;
case OP_PERIOD:
- has_period = 1;
- break;
+ has_period = 1;
+ break;
case OP_BACK_REF:
case OP_ALT:
case END_OF_RE:
case COMPLEX_BRACKET:
return;
case SIMPLE_BRACKET:
- /* Just double check. */
- for (i = 0x80 / UINT_BITS; i < BITSET_UINTS; ++i)
+ /* Just double check. The non-ASCII range starts at 0x80. */
+ assert (0x80 % BITSET_WORD_BITS == 0);
+ for (i = 0x80 / BITSET_WORD_BITS; i < BITSET_WORDS; ++i)
if (dfa->nodes[node].opr.sbcset[i])
return;
break;
"eclosure", and "inveclosure". */
static reg_errcode_t
-analyze (preg)
- regex_t *preg;
+analyze (regex_t *preg)
{
re_dfa_t *dfa = (re_dfa_t *) preg->buffer;
reg_errcode_t ret;
{
dfa->inveclosures = re_malloc (re_node_set, dfa->nodes_len);
if (BE (dfa->inveclosures == NULL, 0))
- return REG_ESPACE;
+ return REG_ESPACE;
ret = calc_inveclosure (dfa);
}
implement parse tree visits. Instead, we use parent pointers and
some hairy code in these two functions. */
static reg_errcode_t
-postorder (root, fn, extra)
- bin_tree_t *root;
- reg_errcode_t (fn (void *, bin_tree_t *));
- void *extra;
+postorder (bin_tree_t *root, reg_errcode_t (fn (void *, bin_tree_t *)),
+ void *extra)
{
bin_tree_t *node, *prev;
if that's the only child). */
while (node->left || node->right)
if (node->left)
- node = node->left;
- else
- node = node->right;
+ node = node->left;
+ else
+ node = node->right;
do
{
reg_errcode_t err = fn (extra, node);
if (BE (err != REG_NOERROR, 0))
return err;
- if (node->parent == NULL)
+ if (node->parent == NULL)
return REG_NOERROR;
prev = node;
node = node->parent;
}
static reg_errcode_t
-preorder (root, fn, extra)
- bin_tree_t *root;
- reg_errcode_t (fn (void *, bin_tree_t *));
- void *extra;
+preorder (bin_tree_t *root, reg_errcode_t (fn (void *, bin_tree_t *)),
+ void *extra)
{
bin_tree_t *node;
prev = node;
node = node->parent;
if (!node)
- return REG_NOERROR;
+ return REG_NOERROR;
}
node = node->right;
}
re_search_internal to map the inner one's opr.idx to this one's. Adjust
backreferences as well. Requires a preorder visit. */
static reg_errcode_t
-optimize_subexps (extra, node)
- void *extra;
- bin_tree_t *node;
+optimize_subexps (void *extra, bin_tree_t *node)
{
re_dfa_t *dfa = (re_dfa_t *) extra;
}
else if (node->token.type == SUBEXP
- && node->left && node->left->token.type == SUBEXP)
+ && node->left && node->left->token.type == SUBEXP)
{
int other_idx = node->left->token.opr.idx;
node->left = node->left->left;
if (node->left)
- node->left->parent = node;
+ node->left->parent = node;
dfa->subexp_map[other_idx] = dfa->subexp_map[node->token.opr.idx];
- if (other_idx < CHAR_BIT * sizeof dfa->used_bkref_map)
- dfa->used_bkref_map &= ~(1u << other_idx);
+ if (other_idx < BITSET_WORD_BITS)
+ dfa->used_bkref_map &= ~((bitset_word_t) 1 << other_idx);
}
return REG_NOERROR;
/* Lowering pass: Turn each SUBEXP node into the appropriate concatenation
of OP_OPEN_SUBEXP, the body of the SUBEXP (if any) and OP_CLOSE_SUBEXP. */
static reg_errcode_t
-lower_subexps (extra, node)
- void *extra;
- bin_tree_t *node;
+lower_subexps (void *extra, bin_tree_t *node)
{
regex_t *preg = (regex_t *) extra;
reg_errcode_t err = REG_NOERROR;
}
static bin_tree_t *
-lower_subexp (err, preg, node)
- reg_errcode_t *err;
- regex_t *preg;
- bin_tree_t *node;
+lower_subexp (reg_errcode_t *err, regex_t *preg, bin_tree_t *node)
{
re_dfa_t *dfa = (re_dfa_t *) preg->buffer;
bin_tree_t *body = node->left;
very common, so we do not lose much. An example that triggers
this case is the sed "script" /\(\)/x. */
&& node->left != NULL
- && (node->token.opr.idx >= CHAR_BIT * sizeof dfa->used_bkref_map
- || !(dfa->used_bkref_map & (1u << node->token.opr.idx))))
+ && (node->token.opr.idx >= BITSET_WORD_BITS
+ || !(dfa->used_bkref_map
+ & ((bitset_word_t) 1 << node->token.opr.idx))))
return node->left;
/* Convert the SUBEXP node to the concatenation of an
/* Pass 1 in building the NFA: compute FIRST and create unlinked automaton
nodes. Requires a postorder visit. */
static reg_errcode_t
-calc_first (extra, node)
- void *extra;
- bin_tree_t *node;
+calc_first (void *extra, bin_tree_t *node)
{
re_dfa_t *dfa = (re_dfa_t *) extra;
if (node->token.type == CONCAT)
node->first = node;
node->node_idx = re_dfa_add_node (dfa, node->token);
if (BE (node->node_idx == -1, 0))
- return REG_ESPACE;
+ return REG_ESPACE;
+ if (node->token.type == ANCHOR)
+ dfa->nodes[node->node_idx].constraint = node->token.opr.ctx_type;
}
return REG_NOERROR;
}
/* Pass 2: compute NEXT on the tree. Preorder visit. */
static reg_errcode_t
-calc_next (extra, node)
- void *extra;
- bin_tree_t *node;
+calc_next (void *extra, bin_tree_t *node)
{
switch (node->token.type)
{
if (node->left)
node->left->next = node->next;
if (node->right)
- node->right->next = node->next;
+ node->right->next = node->next;
break;
}
return REG_NOERROR;
/* Pass 3: link all DFA nodes to their NEXT node (any order will do). */
static reg_errcode_t
-link_nfa_nodes (extra, node)
- void *extra;
- bin_tree_t *node;
+link_nfa_nodes (void *extra, bin_tree_t *node)
{
re_dfa_t *dfa = (re_dfa_t *) extra;
int idx = node->node_idx;
case OP_BACK_REF:
dfa->nexts[idx] = node->next->node_idx;
if (node->token.type == OP_BACK_REF)
- re_node_set_init_1 (dfa->edests + idx, dfa->nexts[idx]);
+ err = re_node_set_init_1 (dfa->edests + idx, dfa->nexts[idx]);
break;
default:
to their own constraint. */
static reg_errcode_t
-duplicate_node_closure (dfa, top_org_node, top_clone_node, root_node,
- init_constraint)
- re_dfa_t *dfa;
- int top_org_node, top_clone_node, root_node;
- unsigned int init_constraint;
+internal_function
+duplicate_node_closure (re_dfa_t *dfa, int top_org_node, int top_clone_node,
+ int root_node, unsigned int init_constraint)
{
int org_node, clone_node, ret;
unsigned int constraint = init_constraint;
destination. */
org_dest = dfa->edests[org_node].elems[0];
re_node_set_empty (dfa->edests + clone_node);
- if (dfa->nodes[org_node].type == ANCHOR)
+ /* If the node is root_node itself, it means the epsilon clsoure
+ has a loop. Then tie it to the destination of the root_node. */
+ if (org_node == root_node && clone_node != org_node)
{
- /* In case of the node has another constraint, append it. */
- if (org_node == root_node && clone_node != org_node)
- {
- /* ...but if the node is root_node itself, it means the
- epsilon closure have a loop, then tie it to the
- destination of the root_node. */
- ret = re_node_set_insert (dfa->edests + clone_node,
- org_dest);
- if (BE (ret < 0, 0))
- return REG_ESPACE;
- break;
- }
- constraint |= dfa->nodes[org_node].opr.ctx_type;
+ ret = re_node_set_insert (dfa->edests + clone_node, org_dest);
+ if (BE (ret < 0, 0))
+ return REG_ESPACE;
+ break;
}
+ /* In case of the node has another constraint, add it. */
+ constraint |= dfa->nodes[org_node].constraint;
clone_dest = duplicate_node (dfa, org_dest, constraint);
if (BE (clone_dest == -1, 0))
return REG_ESPACE;
clone_dest = search_duplicated_node (dfa, org_dest, constraint);
if (clone_dest == -1)
{
- /* There are no such a duplicated node, create a new one. */
+ /* There is no such duplicated node, create a new one. */
reg_errcode_t err;
clone_dest = duplicate_node (dfa, org_dest, constraint);
if (BE (clone_dest == -1, 0))
}
else
{
- /* There are a duplicated node which satisfy the constraint,
+ /* There is a duplicated node which satisfies the constraint,
use it to avoid infinite loop. */
ret = re_node_set_insert (dfa->edests + clone_node, clone_dest);
if (BE (ret < 0, 0))
satisfies the constraint CONSTRAINT. */
static int
-search_duplicated_node (dfa, org_node, constraint)
- const re_dfa_t *dfa;
- int org_node;
- unsigned int constraint;
+search_duplicated_node (const re_dfa_t *dfa, int org_node,
+ unsigned int constraint)
{
int idx;
for (idx = dfa->nodes_len - 1; dfa->nodes[idx].duplicated && idx > 0; --idx)
available. */
static int
-duplicate_node (dfa, org_idx, constraint)
- re_dfa_t *dfa;
- int org_idx;
- unsigned int constraint;
+duplicate_node (re_dfa_t *dfa, int org_idx, unsigned int constraint)
{
int dup_idx = re_dfa_add_node (dfa, dfa->nodes[org_idx]);
if (BE (dup_idx != -1, 1))
{
dfa->nodes[dup_idx].constraint = constraint;
- if (dfa->nodes[org_idx].type == ANCHOR)
- dfa->nodes[dup_idx].constraint |= dfa->nodes[org_idx].opr.ctx_type;
+ dfa->nodes[dup_idx].constraint |= dfa->nodes[org_idx].constraint;
dfa->nodes[dup_idx].duplicated = 1;
/* Store the index of the original node. */
}
static reg_errcode_t
-calc_inveclosure (dfa)
- re_dfa_t *dfa;
+calc_inveclosure (re_dfa_t *dfa)
{
int src, idx, ret;
for (idx = 0; idx < dfa->nodes_len; ++idx)
/* Calculate "eclosure" for all the node in DFA. */
static reg_errcode_t
-calc_eclosure (dfa)
- re_dfa_t *dfa;
+calc_eclosure (re_dfa_t *dfa)
{
int node_idx, incomplete;
#ifdef DEBUG
/* Calculate epsilon closure of NODE. */
static reg_errcode_t
-calc_eclosure_iter (new_set, dfa, node, root)
- re_node_set *new_set;
- re_dfa_t *dfa;
- int node, root;
+calc_eclosure_iter (re_node_set *new_set, re_dfa_t *dfa, int node, int root)
{
reg_errcode_t err;
- unsigned int constraint;
- int i, incomplete;
+ int i;
re_node_set eclosure;
- incomplete = 0;
+ int ret;
+ int incomplete = 0;
err = re_node_set_alloc (&eclosure, dfa->edests[node].nelem + 1);
if (BE (err != REG_NOERROR, 0))
return err;
We reference this value to avoid infinite loop. */
dfa->eclosures[node].nelem = -1;
- constraint = ((dfa->nodes[node].type == ANCHOR)
- ? dfa->nodes[node].opr.ctx_type : 0);
- /* If the current node has constraints, duplicate all nodes.
- Since they must inherit the constraints. */
- if (constraint
+ /* If the current node has constraints, duplicate all nodes
+ since they must inherit the constraints. */
+ if (dfa->nodes[node].constraint
&& dfa->edests[node].nelem
&& !dfa->nodes[dfa->edests[node].elems[0]].duplicated)
{
- int org_node, cur_node;
- org_node = cur_node = node;
- err = duplicate_node_closure (dfa, node, node, node, constraint);
+ err = duplicate_node_closure (dfa, node, node, node,
+ dfa->nodes[node].constraint);
if (BE (err != REG_NOERROR, 0))
return err;
}
else
eclosure_elem = dfa->eclosures[edest];
/* Merge the epsilon closure of `edest'. */
- re_node_set_merge (&eclosure, &eclosure_elem);
+ err = re_node_set_merge (&eclosure, &eclosure_elem);
+ if (BE (err != REG_NOERROR, 0))
+ return err;
/* If the epsilon closure of `edest' is incomplete,
the epsilon closure of this node is also incomplete. */
if (dfa->eclosures[edest].nelem == 0)
}
}
- /* Epsilon closures include itself. */
- re_node_set_insert (&eclosure, node);
+ /* An epsilon closure includes itself. */
+ ret = re_node_set_insert (&eclosure, node);
+ if (BE (ret < 0, 0))
+ return REG_ESPACE;
if (incomplete && !root)
dfa->eclosures[node].nelem = 0;
else
We must not use this function inside bracket expressions. */
static void
-fetch_token (result, input, syntax)
- re_token_t *result;
- re_string_t *input;
- reg_syntax_t syntax;
+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));
}
We must not use this function inside bracket expressions. */
static int
-peek_token (token, input, syntax)
- re_token_t *token;
- re_string_t *input;
- reg_syntax_t syntax;
+internal_function
+peek_token (re_token_t *token, re_string_t *input, reg_syntax_t syntax)
{
unsigned char c;
We must not use this function out of bracket expressions. */
static int
-peek_token_bracket (token, input, syntax)
- re_token_t *token;
- re_string_t *input;
- reg_syntax_t syntax;
+internal_function
+peek_token_bracket (re_token_t *token, re_string_t *input, reg_syntax_t syntax)
{
unsigned char c;
if (re_string_eoi (input))
EOR means end of regular expression. */
static bin_tree_t *
-parse (regexp, preg, syntax, err)
- re_string_t *regexp;
- regex_t *preg;
- reg_syntax_t syntax;
- reg_errcode_t *err;
+parse (re_string_t *regexp, regex_t *preg, reg_syntax_t syntax,
+ reg_errcode_t *err)
{
re_dfa_t *dfa = (re_dfa_t *) preg->buffer;
bin_tree_t *tree, *eor, *root;
ALT means alternative, which represents the operator `|'. */
static bin_tree_t *
-parse_reg_exp (regexp, preg, token, syntax, nest, err)
- re_string_t *regexp;
- regex_t *preg;
- re_token_t *token;
- reg_syntax_t syntax;
- int nest;
- reg_errcode_t *err;
+parse_reg_exp (re_string_t *regexp, regex_t *preg, re_token_t *token,
+ reg_syntax_t syntax, int nest, reg_errcode_t *err)
{
re_dfa_t *dfa = (re_dfa_t *) preg->buffer;
bin_tree_t *tree, *branch = NULL;
CAT means concatenation. */
static bin_tree_t *
-parse_branch (regexp, preg, token, syntax, nest, err)
- re_string_t *regexp;
- regex_t *preg;
- re_token_t *token;
- reg_syntax_t syntax;
- int nest;
- reg_errcode_t *err;
+parse_branch (re_string_t *regexp, regex_t *preg, re_token_t *token,
+ reg_syntax_t syntax, int nest, reg_errcode_t *err)
{
bin_tree_t *tree, *exp;
re_dfa_t *dfa = (re_dfa_t *) preg->buffer;
exp = parse_expression (regexp, preg, token, syntax, nest, err);
if (BE (*err != REG_NOERROR && exp == NULL, 0))
{
+ if (tree != NULL)
+ postorder (tree, free_tree, NULL);
return NULL;
}
if (tree != NULL && exp != NULL)
{
- tree = create_tree (dfa, tree, exp, CONCAT);
- if (tree == NULL)
+ bin_tree_t *newtree = create_tree (dfa, tree, exp, CONCAT);
+ if (newtree == NULL)
{
+ postorder (exp, free_tree, NULL);
+ postorder (tree, free_tree, NULL);
*err = REG_ESPACE;
return NULL;
}
+ tree = newtree;
}
else if (tree == NULL)
tree = exp;
*/
static bin_tree_t *
-parse_expression (regexp, preg, token, syntax, nest, err)
- re_string_t *regexp;
- regex_t *preg;
- re_token_t *token;
- reg_syntax_t syntax;
- int nest;
- reg_errcode_t *err;
+parse_expression (re_string_t *regexp, regex_t *preg, re_token_t *token,
+ reg_syntax_t syntax, int nest, reg_errcode_t *err)
{
re_dfa_t *dfa = (re_dfa_t *) preg->buffer;
bin_tree_t *tree;
&& dfa->word_ops_used == 0)
init_word_char (dfa);
if (token->opr.ctx_type == WORD_DELIM
- || token->opr.ctx_type == NOT_WORD_DELIM)
+ || token->opr.ctx_type == NOT_WORD_DELIM)
{
bin_tree_t *tree_first, *tree_last;
if (token->opr.ctx_type == WORD_DELIM)
token->opr.ctx_type = WORD_FIRST;
tree_first = create_token_tree (dfa, NULL, NULL, token);
token->opr.ctx_type = WORD_LAST;
- }
- else
- {
+ }
+ else
+ {
token->opr.ctx_type = INSIDE_WORD;
tree_first = create_token_tree (dfa, NULL, NULL, token);
token->opr.ctx_type = INSIDE_NOTWORD;
- }
+ }
tree_last = create_token_tree (dfa, NULL, NULL, token);
tree = create_tree (dfa, tree_first, tree_last, OP_ALT);
if (BE (tree_first == NULL || tree_last == NULL || tree == NULL, 0))
*/
static bin_tree_t *
-parse_sub_exp (regexp, preg, token, syntax, nest, err)
- re_string_t *regexp;
- regex_t *preg;
- re_token_t *token;
- reg_syntax_t syntax;
- int nest;
- reg_errcode_t *err;
+parse_sub_exp (re_string_t *regexp, regex_t *preg, re_token_t *token,
+ reg_syntax_t syntax, int nest, reg_errcode_t *err)
{
re_dfa_t *dfa = (re_dfa_t *) preg->buffer;
bin_tree_t *tree;
{
tree = parse_reg_exp (regexp, preg, token, syntax, nest, err);
if (BE (*err == REG_NOERROR && token->type != OP_CLOSE_SUBEXP, 0))
- *err = REG_EPAREN;
+ {
+ if (tree != NULL)
+ postorder (tree, free_tree, NULL);
+ *err = REG_EPAREN;
+ }
if (BE (*err != REG_NOERROR, 0))
return NULL;
}
/* This function parse repetition operators like "*", "+", "{1,3}" etc. */
static bin_tree_t *
-parse_dup_op (elem, regexp, dfa, token, syntax, err)
- bin_tree_t *elem;
- re_string_t *regexp;
- re_dfa_t *dfa;
- re_token_t *token;
- reg_syntax_t syntax;
- reg_errcode_t *err;
+parse_dup_op (bin_tree_t *elem, re_string_t *regexp, re_dfa_t *dfa,
+ re_token_t *token, reg_syntax_t syntax, reg_errcode_t *err)
{
bin_tree_t *tree = NULL, *old_tree = NULL;
int i, start, end, start_idx = re_string_cur_idx (regexp);
return elem;
}
- if (BE (end != -1 && start > end, 0))
+ if (BE ((end != -1 && start > end) || token->type != OP_CLOSE_DUP_NUM, 0))
{
/* First number greater than second. */
*err = REG_BADBR;
elem = duplicate_tree (elem, dfa);
tree = create_tree (dfa, tree, elem, CONCAT);
if (BE (elem == NULL || tree == NULL, 0))
- goto parse_dup_op_espace;
+ goto parse_dup_op_espace;
tree = create_tree (dfa, tree, NULL, OP_ALT);
if (BE (tree == NULL, 0))
- goto parse_dup_op_espace;
+ goto parse_dup_op_espace;
}
if (old_tree)
update it. */
static reg_errcode_t
+internal_function
# ifdef RE_ENABLE_I18N
-build_range_exp (sbcset, mbcset, range_alloc, start_elem, end_elem)
- re_charset_t *mbcset;
- int *range_alloc;
+build_range_exp (bitset_t sbcset, re_charset_t *mbcset, int *range_alloc,
+ bracket_elem_t *start_elem, bracket_elem_t *end_elem)
# else /* not RE_ENABLE_I18N */
-build_range_exp (sbcset, start_elem, end_elem)
+build_range_exp (bitset_t sbcset, bracket_elem_t *start_elem,
+ bracket_elem_t *end_elem)
# endif /* not RE_ENABLE_I18N */
- re_bitset_ptr_t sbcset;
- bracket_elem_t *start_elem, *end_elem;
{
unsigned int start_ch, end_ch;
/* Equivalence Classes and Character Classes can't be a range start/end. */
no MBCSET if dfa->mb_cur_max == 1. */
if (mbcset)
{
- /* Check the space of the arrays. */
- if (BE (*range_alloc == mbcset->nranges, 0))
- {
+ /* Check the space of the arrays. */
+ if (BE (*range_alloc == mbcset->nranges, 0))
+ {
/* There is not enough space, need realloc. */
wchar_t *new_array_start, *new_array_end;
int new_nranges;
/* Use realloc since mbcset->range_starts and mbcset->range_ends
are NULL if *range_alloc == 0. */
new_array_start = re_realloc (mbcset->range_starts, wchar_t,
- new_nranges);
+ new_nranges);
new_array_end = re_realloc (mbcset->range_ends, wchar_t,
- new_nranges);
+ new_nranges);
if (BE (new_array_start == NULL || new_array_end == NULL, 0))
return REG_ESPACE;
mbcset->range_starts = new_array_start;
mbcset->range_ends = new_array_end;
*range_alloc = new_nranges;
- }
+ }
- mbcset->range_starts[mbcset->nranges] = start_wc;
- mbcset->range_ends[mbcset->nranges++] = end_wc;
+ mbcset->range_starts[mbcset->nranges] = start_wc;
+ mbcset->range_ends[mbcset->nranges++] = end_wc;
}
/* Build the table for single byte characters. */
pointer argument since we may update it. */
static reg_errcode_t
+internal_function
# ifdef RE_ENABLE_I18N
-build_collating_symbol (sbcset, mbcset, coll_sym_alloc, name)
- re_charset_t *mbcset;
- int *coll_sym_alloc;
+build_collating_symbol (bitset_t sbcset, re_charset_t *mbcset,
+ int *coll_sym_alloc, const unsigned char *name)
# else /* not RE_ENABLE_I18N */
-build_collating_symbol (sbcset, name)
+build_collating_symbol (bitset_t sbcset, const unsigned char *name)
# endif /* not RE_ENABLE_I18N */
- re_bitset_ptr_t sbcset;
- const unsigned char *name;
{
size_t name_len = strlen ((const char *) name);
if (BE (name_len != 1, 0))
"[[.a-a.]]" etc. */
static bin_tree_t *
-parse_bracket_exp (regexp, dfa, token, syntax, err)
- re_string_t *regexp;
- re_dfa_t *dfa;
- re_token_t *token;
- reg_syntax_t syntax;
- reg_errcode_t *err;
+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
const unsigned char *collseqmb;
{
int32_t hash = elem_hash ((const char *) name, name_len);
int32_t elem = hash % table_size;
- int32_t second = hash % (table_size - 2);
- while (symb_table[2 * elem] != 0)
- {
- /* First compare the hashing value. */
- if (symb_table[2 * elem] == hash
- /* Compare the length of the name. */
- && name_len == extra[symb_table[2 * elem + 1]]
- /* Compare the name. */
- && memcmp (name, &extra[symb_table[2 * elem + 1] + 1],
- name_len) == 0)
+ if (symb_table[2 * elem] != 0)
+ {
+ int32_t second = hash % (table_size - 2) + 1;
+
+ do
{
- /* Yep, this is the entry. */
- break;
- }
+ /* First compare the hashing value. */
+ if (symb_table[2 * elem] == hash
+ /* Compare the length of the name. */
+ && name_len == extra[symb_table[2 * elem + 1]]
+ /* Compare the name. */
+ && memcmp (name, &extra[symb_table[2 * elem + 1] + 1],
+ name_len) == 0)
+ {
+ /* Yep, this is the entry. */
+ break;
+ }
- /* Next entry. */
- elem += second;
+ /* Next entry. */
+ elem += second;
+ }
+ while (symb_table[2 * elem] != 0);
}
return elem;
}
- /* Local function for parse_bracket_exp used in _LIBC environement.
+ /* Local function for parse_bracket_exp used in _LIBC environment.
Look up the collation sequence value of BR_ELEM.
Return the value if succeeded, UINT_MAX otherwise. */
}
else if (br_elem->type == MB_CHAR)
{
- return __collseq_table_lookup (collseqwc, br_elem->opr.wch);
+ if (nrules != 0)
+ return __collseq_table_lookup (collseqwc, br_elem->opr.wch);
}
else if (br_elem->type == COLL_SYM)
{
build_range_exp (sbcset, mbcset, range_alloc, start_elem, end_elem)
re_charset_t *mbcset;
int *range_alloc;
- re_bitset_ptr_t sbcset;
+ bitset_t sbcset;
bracket_elem_t *start_elem, *end_elem;
{
unsigned int ch;
build below suffices. */
if (nrules > 0 || dfa->mb_cur_max > 1)
{
- /* Check the space of the arrays. */
- if (BE (*range_alloc == mbcset->nranges, 0))
+ /* Check the space of the arrays. */
+ if (BE (*range_alloc == mbcset->nranges, 0))
{
/* There is not enough space, need realloc. */
uint32_t *new_array_start;
new_array_start = re_realloc (mbcset->range_starts, uint32_t,
new_nranges);
new_array_end = re_realloc (mbcset->range_ends, uint32_t,
- new_nranges);
+ new_nranges);
if (BE (new_array_start == NULL || new_array_end == NULL, 0))
- return REG_ESPACE;
+ return REG_ESPACE;
mbcset->range_starts = new_array_start;
mbcset->range_ends = new_array_end;
*range_alloc = new_nranges;
}
- mbcset->range_starts[mbcset->nranges] = start_collseq;
- mbcset->range_ends[mbcset->nranges++] = end_collseq;
+ mbcset->range_starts[mbcset->nranges] = start_collseq;
+ mbcset->range_ends[mbcset->nranges++] = end_collseq;
}
/* Build the table for single byte characters. */
build_collating_symbol (sbcset, mbcset, coll_sym_alloc, name)
re_charset_t *mbcset;
int *coll_sym_alloc;
- re_bitset_ptr_t sbcset;
+ bitset_t sbcset;
const unsigned char *name;
{
int32_t elem, idx;
/*
if (MB_CUR_MAX > 1)
*/
- collseqwc = _NL_CURRENT (LC_COLLATE, _NL_COLLATE_COLLSEQWC);
+ collseqwc = _NL_CURRENT (LC_COLLATE, _NL_COLLATE_COLLSEQWC);
table_size = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_SYMB_HASH_SIZEMB);
symb_table = (const int32_t *) _NL_CURRENT (LC_COLLATE,
_NL_COLLATE_SYMB_TABLEMB);
_NL_COLLATE_SYMB_EXTRAMB);
}
#endif
- sbcset = (re_bitset_ptr_t) calloc (sizeof (unsigned int), BITSET_UINTS);
+ sbcset = (re_bitset_ptr_t) calloc (sizeof (bitset_t), 1);
#ifdef RE_ENABLE_I18N
mbcset = (re_charset_t *) calloc (sizeof (re_charset_t), 1);
#endif /* RE_ENABLE_I18N */
if (BE (sbcset == NULL, 0))
#endif /* RE_ENABLE_I18N */
{
+ re_free (sbcset);
+#ifdef RE_ENABLE_I18N
+ re_free (mbcset);
+#endif
*err = REG_ESPACE;
return NULL;
}
#endif /* not RE_ENABLE_I18N */
non_match = 1;
if (syntax & RE_HAT_LISTS_NOT_NEWLINE)
- bitset_set (sbcset, '\0');
+ bitset_set (sbcset, '\n');
re_string_skip_bytes (regexp, token_len); /* Skip a token. */
token_len = peek_token_bracket (token, regexp, syntax);
if (BE (token->type == END_OF_RE, 0))
mbc_tree = create_token_tree (dfa, NULL, NULL, &br_token);
if (BE (mbc_tree == NULL, 0))
goto parse_bracket_exp_espace;
- for (sbc_idx = 0; sbc_idx < BITSET_UINTS; ++sbc_idx)
+ for (sbc_idx = 0; sbc_idx < BITSET_WORDS; ++sbc_idx)
if (sbcset[sbc_idx])
break;
/* If there are no bits set in sbcset, there is no point
of having both SIMPLE_BRACKET and COMPLEX_BRACKET. */
- if (sbc_idx < BITSET_UINTS)
+ if (sbc_idx < BITSET_WORDS)
{
- /* Build a tree for simple bracket. */
- br_token.type = SIMPLE_BRACKET;
- br_token.opr.sbcset = sbcset;
- work_tree = create_token_tree (dfa, NULL, NULL, &br_token);
- if (BE (work_tree == NULL, 0))
- goto parse_bracket_exp_espace;
+ /* Build a tree for simple bracket. */
+ br_token.type = SIMPLE_BRACKET;
+ br_token.opr.sbcset = sbcset;
+ work_tree = create_token_tree (dfa, NULL, NULL, &br_token);
+ if (BE (work_tree == NULL, 0))
+ goto parse_bracket_exp_espace;
- /* Then join them by ALT node. */
- work_tree = create_tree (dfa, work_tree, mbc_tree, OP_ALT);
- if (BE (work_tree == NULL, 0))
- goto parse_bracket_exp_espace;
+ /* Then join them by ALT node. */
+ work_tree = create_tree (dfa, work_tree, mbc_tree, OP_ALT);
+ if (BE (work_tree == NULL, 0))
+ goto parse_bracket_exp_espace;
}
else
{
br_token.opr.sbcset = sbcset;
work_tree = create_token_tree (dfa, NULL, NULL, &br_token);
if (BE (work_tree == NULL, 0))
- goto parse_bracket_exp_espace;
+ goto parse_bracket_exp_espace;
}
return work_tree;
/* Parse an element in the bracket expression. */
static reg_errcode_t
-parse_bracket_element (elem, regexp, token, token_len, dfa, syntax,
- accept_hyphen)
- bracket_elem_t *elem;
- re_string_t *regexp;
- re_token_t *token;
- int token_len;
- re_dfa_t *dfa;
- reg_syntax_t syntax;
- int accept_hyphen;
+parse_bracket_element (bracket_elem_t *elem, re_string_t *regexp,
+ re_token_t *token, int token_len, re_dfa_t *dfa,
+ reg_syntax_t syntax, int accept_hyphen)
{
#ifdef RE_ENABLE_I18N
int cur_char_size;
[=<equivalent_class>=]. */
static reg_errcode_t
-parse_bracket_symbol (elem, regexp, token)
- bracket_elem_t *elem;
- re_string_t *regexp;
- re_token_t *token;
+parse_bracket_symbol (bracket_elem_t *elem, re_string_t *regexp,
+ re_token_t *token)
{
unsigned char ch, delim = token->opr.c;
int i = 0;
static reg_errcode_t
#ifdef RE_ENABLE_I18N
-build_equiv_class (sbcset, mbcset, equiv_class_alloc, name)
- re_charset_t *mbcset;
- int *equiv_class_alloc;
+build_equiv_class (bitset_t sbcset, re_charset_t *mbcset,
+ int *equiv_class_alloc, const unsigned char *name)
#else /* not RE_ENABLE_I18N */
-build_equiv_class (sbcset, name)
+build_equiv_class (bitset_t sbcset, const unsigned char *name)
#endif /* not RE_ENABLE_I18N */
- re_bitset_ptr_t sbcset;
- const unsigned char *name;
{
-#if defined _LIBC
+#ifdef _LIBC
uint32_t nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
if (nrules != 0)
{
_NL_COLLATE_EXTRAMB);
indirect = (const int32_t *) _NL_CURRENT (LC_COLLATE,
_NL_COLLATE_INDIRECTMB);
- idx1 = findidx (&cp);
- if (BE (idx1 == 0 || cp < name + strlen ((const char *) name), 0))
+ idx1 = findidx (&cp, -1);
+ if (BE (idx1 == 0 || *cp != '\0', 0))
/* This isn't a valid character. */
return REG_ECOLLATE;
/* Build single byte matcing table for this equivalence class. */
- char_buf[1] = (unsigned char) '\0';
- len = weights[idx1];
+ len = weights[idx1 & 0xffffff];
for (ch = 0; ch < SBC_MAX; ++ch)
{
char_buf[0] = ch;
cp = char_buf;
- idx2 = findidx (&cp);
+ idx2 = findidx (&cp, 1);
/*
idx2 = table[ch];
*/
if (idx2 == 0)
/* This isn't a valid character. */
continue;
- if (len == weights[idx2])
+ /* Compare only if the length matches and the collation rule
+ index is the same. */
+ if (len == weights[idx2 & 0xffffff] && (idx1 >> 24) == (idx2 >> 24))
{
int cnt = 0;
+
while (cnt <= len &&
- weights[idx1 + 1 + cnt] == weights[idx2 + 1 + cnt])
+ weights[(idx1 & 0xffffff) + 1 + cnt]
+ == weights[(idx2 & 0xffffff) + 1 + cnt])
++cnt;
if (cnt > len)
static reg_errcode_t
#ifdef RE_ENABLE_I18N
-build_charclass (trans, sbcset, mbcset, char_class_alloc, class_name, syntax)
- re_charset_t *mbcset;
- int *char_class_alloc;
+build_charclass (RE_TRANSLATE_TYPE trans, bitset_t sbcset,
+ re_charset_t *mbcset, int *char_class_alloc,
+ const unsigned char *class_name, reg_syntax_t syntax)
#else /* not RE_ENABLE_I18N */
-build_charclass (trans, sbcset, class_name, syntax)
+build_charclass (RE_TRANSLATE_TYPE trans, bitset_t sbcset,
+ const unsigned char *class_name, reg_syntax_t syntax)
#endif /* not RE_ENABLE_I18N */
- unsigned RE_TRANSLATE_TYPE trans;
- re_bitset_ptr_t sbcset;
- const unsigned char *class_name;
- reg_syntax_t syntax;
{
int i;
const char *name = (const char *) class_name;
#endif /* RE_ENABLE_I18N */
#define BUILD_CHARCLASS_LOOP(ctype_func) \
- for (i = 0; i < SBC_MAX; ++i) \
+ do { \
+ if (BE (trans != NULL, 0)) \
{ \
- if (ctype_func (i)) \
- { \
- int ch = trans ? trans[i] : i; \
- bitset_set (sbcset, ch); \
- } \
- }
+ for (i = 0; i < SBC_MAX; ++i) \
+ if (ctype_func (i)) \
+ bitset_set (sbcset, trans[i]); \
+ } \
+ else \
+ { \
+ for (i = 0; i < SBC_MAX; ++i) \
+ if (ctype_func (i)) \
+ bitset_set (sbcset, i); \
+ } \
+ } while (0)
if (strcmp (name, "alnum") == 0)
- BUILD_CHARCLASS_LOOP (isalnum)
+ BUILD_CHARCLASS_LOOP (isalnum);
else if (strcmp (name, "cntrl") == 0)
- BUILD_CHARCLASS_LOOP (iscntrl)
+ BUILD_CHARCLASS_LOOP (iscntrl);
else if (strcmp (name, "lower") == 0)
- BUILD_CHARCLASS_LOOP (islower)
+ BUILD_CHARCLASS_LOOP (islower);
else if (strcmp (name, "space") == 0)
- BUILD_CHARCLASS_LOOP (isspace)
+ BUILD_CHARCLASS_LOOP (isspace);
else if (strcmp (name, "alpha") == 0)
- BUILD_CHARCLASS_LOOP (isalpha)
+ BUILD_CHARCLASS_LOOP (isalpha);
else if (strcmp (name, "digit") == 0)
- BUILD_CHARCLASS_LOOP (isdigit)
+ BUILD_CHARCLASS_LOOP (isdigit);
else if (strcmp (name, "print") == 0)
- BUILD_CHARCLASS_LOOP (isprint)
+ BUILD_CHARCLASS_LOOP (isprint);
else if (strcmp (name, "upper") == 0)
- BUILD_CHARCLASS_LOOP (isupper)
+ BUILD_CHARCLASS_LOOP (isupper);
else if (strcmp (name, "blank") == 0)
- BUILD_CHARCLASS_LOOP (isblank)
+ BUILD_CHARCLASS_LOOP (isblank);
else if (strcmp (name, "graph") == 0)
- BUILD_CHARCLASS_LOOP (isgraph)
+ BUILD_CHARCLASS_LOOP (isgraph);
else if (strcmp (name, "punct") == 0)
- BUILD_CHARCLASS_LOOP (ispunct)
+ BUILD_CHARCLASS_LOOP (ispunct);
else if (strcmp (name, "xdigit") == 0)
- BUILD_CHARCLASS_LOOP (isxdigit)
+ BUILD_CHARCLASS_LOOP (isxdigit);
else
return REG_ECTYPE;
}
static bin_tree_t *
-build_charclass_op (dfa, trans, class_name, extra, non_match, err)
- re_dfa_t *dfa;
- unsigned RE_TRANSLATE_TYPE trans;
- const unsigned char *class_name;
- const unsigned char *extra;
- int non_match;
- reg_errcode_t *err;
+build_charclass_op (re_dfa_t *dfa, RE_TRANSLATE_TYPE trans,
+ const unsigned char *class_name,
+ const unsigned char *extra, int non_match,
+ reg_errcode_t *err)
{
re_bitset_ptr_t sbcset;
#ifdef RE_ENABLE_I18N
re_token_t br_token;
bin_tree_t *tree;
- sbcset = (re_bitset_ptr_t) calloc (sizeof (unsigned int), BITSET_UINTS);
+ sbcset = (re_bitset_ptr_t) calloc (sizeof (bitset_t), 1);
#ifdef RE_ENABLE_I18N
mbcset = (re_charset_t *) calloc (sizeof (re_charset_t), 1);
#endif /* RE_ENABLE_I18N */
if (non_match)
{
#ifdef RE_ENABLE_I18N
- /*
- if (syntax & RE_HAT_LISTS_NOT_NEWLINE)
- bitset_set(cset->sbcset, '\0');
- */
mbcset->non_match = 1;
#endif /* not RE_ENABLE_I18N */
}
Return -2, If an error is occured. */
static int
-fetch_number (input, token, syntax)
- re_string_t *input;
- re_token_t *token;
- reg_syntax_t syntax;
+fetch_number (re_string_t *input, re_token_t *token, reg_syntax_t syntax)
{
int num = -1;
unsigned char c;
/* Create a tree node. */
static bin_tree_t *
-create_tree (dfa, left, right, type)
- re_dfa_t *dfa;
- bin_tree_t *left;
- bin_tree_t *right;
- re_token_type_t type;
+create_tree (re_dfa_t *dfa, bin_tree_t *left, bin_tree_t *right,
+ re_token_type_t type)
{
re_token_t t;
t.type = type;
}
static bin_tree_t *
-create_token_tree (dfa, left, right, token)
- re_dfa_t *dfa;
- bin_tree_t *left;
- bin_tree_t *right;
- const re_token_t *token;
+create_token_tree (re_dfa_t *dfa, bin_tree_t *left, bin_tree_t *right,
+ const re_token_t *token)
{
bin_tree_t *tree;
if (BE (dfa->str_tree_storage_idx == BIN_TREE_STORAGE_SIZE, 0))
To be called from preorder or postorder. */
static reg_errcode_t
-mark_opt_subexp (extra, node)
- void *extra;
- bin_tree_t *node;
+mark_opt_subexp (void *extra, bin_tree_t *node)
{
int idx = (int) (long) extra;
if (node->token.type == SUBEXP && node->token.opr.idx == idx)
it's easier to duplicate. */
static bin_tree_t *
-duplicate_tree (root, dfa)
- const bin_tree_t *root;
- re_dfa_t *dfa;
+duplicate_tree (const bin_tree_t *root, re_dfa_t *dfa)
{
const bin_tree_t *node;
bin_tree_t *dup_root;
node = node->parent;
dup_node = dup_node->parent;
if (!node)
- return dup_root;
+ return dup_root;
}
node = node->right;
p_new = &dup_node->right;
projects / platform / upstream / glibc.git / blobdiff