diff options
Diffstat (limited to 'MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regparse.c')
| -rw-r--r-- | MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regparse.c | 8461 |
1 files changed, 0 insertions, 8461 deletions
diff --git a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regparse.c b/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regparse.c deleted file mode 100644 index 2b121690e1..0000000000 --- a/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regparse.c +++ /dev/null @@ -1,8461 +0,0 @@ -/**********************************************************************
- regparse.c - Oniguruma (regular expression library)
-**********************************************************************/
-/*-
- * Copyright (c) 2002-2019 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include "regparse.h"
-#include "st.h"
-
-#ifdef DEBUG_NODE_FREE
-#include <stdio.h>
-#endif
-
-#define INIT_TAG_NAMES_ALLOC_NUM 5
-
-#define WARN_BUFSIZE 256
-
-#define CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS
-
-#define IS_ALLOWED_CODE_IN_CALLOUT_NAME(c) \
- ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || c == '_' /* || c == '!' */)
-#define IS_ALLOWED_CODE_IN_CALLOUT_TAG_NAME(c) \
- ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || c == '_')
-
-
-OnigSyntaxType OnigSyntaxOniguruma = {
- (( SYN_GNU_REGEX_OP | ONIG_SYN_OP_QMARK_NON_GREEDY |
- ONIG_SYN_OP_ESC_OCTAL3 | ONIG_SYN_OP_ESC_X_HEX2 |
- ONIG_SYN_OP_ESC_X_BRACE_HEX8 | ONIG_SYN_OP_ESC_O_BRACE_OCTAL |
- ONIG_SYN_OP_ESC_CONTROL_CHARS |
- ONIG_SYN_OP_ESC_C_CONTROL )
- & ~ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END )
- , ( ONIG_SYN_OP2_QMARK_GROUP_EFFECT |
- ONIG_SYN_OP2_OPTION_ONIGURUMA |
- ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP | ONIG_SYN_OP2_ESC_K_NAMED_BACKREF |
- ONIG_SYN_OP2_QMARK_LPAREN_IF_ELSE |
- ONIG_SYN_OP2_QMARK_TILDE_ABSENT_GROUP |
- ONIG_SYN_OP2_QMARK_BRACE_CALLOUT_CONTENTS |
- ONIG_SYN_OP2_ASTERISK_CALLOUT_NAME |
- ONIG_SYN_OP2_ESC_X_Y_TEXT_SEGMENT |
- ONIG_SYN_OP2_ESC_CAPITAL_R_GENERAL_NEWLINE |
- ONIG_SYN_OP2_ESC_CAPITAL_N_O_SUPER_DOT |
- ONIG_SYN_OP2_ESC_CAPITAL_K_KEEP |
- ONIG_SYN_OP2_ESC_G_SUBEXP_CALL |
- ONIG_SYN_OP2_ESC_P_BRACE_CHAR_PROPERTY |
- ONIG_SYN_OP2_ESC_P_BRACE_CIRCUMFLEX_NOT |
- ONIG_SYN_OP2_PLUS_POSSESSIVE_REPEAT |
- ONIG_SYN_OP2_CCLASS_SET_OP | ONIG_SYN_OP2_ESC_CAPITAL_C_BAR_CONTROL |
- ONIG_SYN_OP2_ESC_CAPITAL_M_BAR_META | ONIG_SYN_OP2_ESC_V_VTAB |
- ONIG_SYN_OP2_ESC_H_XDIGIT | ONIG_SYN_OP2_ESC_U_HEX4 )
- , ( SYN_GNU_REGEX_BV |
- ONIG_SYN_ALLOW_INTERVAL_LOW_ABBREV |
- ONIG_SYN_DIFFERENT_LEN_ALT_LOOK_BEHIND |
- ONIG_SYN_CAPTURE_ONLY_NAMED_GROUP |
- ONIG_SYN_ALLOW_MULTIPLEX_DEFINITION_NAME |
- ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY |
- ONIG_SYN_ALLOW_INVALID_CODE_END_OF_RANGE_IN_CC |
- ONIG_SYN_WARN_CC_OP_NOT_ESCAPED |
- ONIG_SYN_WARN_REDUNDANT_NESTED_REPEAT )
- , ONIG_OPTION_NONE
- ,
- {
- (OnigCodePoint )'\\' /* esc */
- , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar '.' */
- , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anytime '*' */
- , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* zero or one time '?' */
- , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* one or more time '+' */
- , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar anytime */
- }
-};
-
-OnigSyntaxType OnigSyntaxRuby = {
- (( SYN_GNU_REGEX_OP | ONIG_SYN_OP_QMARK_NON_GREEDY |
- ONIG_SYN_OP_ESC_OCTAL3 | ONIG_SYN_OP_ESC_X_HEX2 |
- ONIG_SYN_OP_ESC_X_BRACE_HEX8 | ONIG_SYN_OP_ESC_O_BRACE_OCTAL |
- ONIG_SYN_OP_ESC_CONTROL_CHARS |
- ONIG_SYN_OP_ESC_C_CONTROL )
- & ~ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END )
- , ( ONIG_SYN_OP2_QMARK_GROUP_EFFECT |
- ONIG_SYN_OP2_OPTION_RUBY |
- ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP | ONIG_SYN_OP2_ESC_K_NAMED_BACKREF |
- ONIG_SYN_OP2_QMARK_LPAREN_IF_ELSE |
- ONIG_SYN_OP2_QMARK_TILDE_ABSENT_GROUP |
- ONIG_SYN_OP2_ESC_X_Y_TEXT_SEGMENT |
- ONIG_SYN_OP2_ESC_CAPITAL_R_GENERAL_NEWLINE |
- ONIG_SYN_OP2_ESC_CAPITAL_K_KEEP |
- ONIG_SYN_OP2_ESC_G_SUBEXP_CALL |
- ONIG_SYN_OP2_ESC_P_BRACE_CHAR_PROPERTY |
- ONIG_SYN_OP2_ESC_P_BRACE_CIRCUMFLEX_NOT |
- ONIG_SYN_OP2_PLUS_POSSESSIVE_REPEAT |
- ONIG_SYN_OP2_CCLASS_SET_OP | ONIG_SYN_OP2_ESC_CAPITAL_C_BAR_CONTROL |
- ONIG_SYN_OP2_ESC_CAPITAL_M_BAR_META | ONIG_SYN_OP2_ESC_V_VTAB |
- ONIG_SYN_OP2_ESC_H_XDIGIT | ONIG_SYN_OP2_ESC_U_HEX4 )
- , ( SYN_GNU_REGEX_BV |
- ONIG_SYN_ALLOW_INTERVAL_LOW_ABBREV |
- ONIG_SYN_DIFFERENT_LEN_ALT_LOOK_BEHIND |
- ONIG_SYN_CAPTURE_ONLY_NAMED_GROUP |
- ONIG_SYN_ALLOW_MULTIPLEX_DEFINITION_NAME |
- ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY |
- ONIG_SYN_WARN_CC_OP_NOT_ESCAPED |
- ONIG_SYN_WARN_REDUNDANT_NESTED_REPEAT )
- , ONIG_OPTION_NONE
- ,
- {
- (OnigCodePoint )'\\' /* esc */
- , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar '.' */
- , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anytime '*' */
- , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* zero or one time '?' */
- , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* one or more time '+' */
- , (OnigCodePoint )ONIG_INEFFECTIVE_META_CHAR /* anychar anytime */
- }
-};
-
-OnigSyntaxType* OnigDefaultSyntax = ONIG_SYNTAX_ONIGURUMA;
-
-extern void onig_null_warn(const char* s ARG_UNUSED) { }
-
-#ifdef DEFAULT_WARN_FUNCTION
-static OnigWarnFunc onig_warn = (OnigWarnFunc )DEFAULT_WARN_FUNCTION;
-#else
-static OnigWarnFunc onig_warn = onig_null_warn;
-#endif
-
-#ifdef DEFAULT_VERB_WARN_FUNCTION
-static OnigWarnFunc onig_verb_warn = (OnigWarnFunc )DEFAULT_VERB_WARN_FUNCTION;
-#else
-static OnigWarnFunc onig_verb_warn = onig_null_warn;
-#endif
-
-extern void onig_set_warn_func(OnigWarnFunc f)
-{
- onig_warn = f;
-}
-
-extern void onig_set_verb_warn_func(OnigWarnFunc f)
-{
- onig_verb_warn = f;
-}
-
-extern void
-onig_warning(const char* s)
-{
- if (onig_warn == onig_null_warn) return ;
-
- (*onig_warn)(s);
-}
-
-#define DEFAULT_MAX_CAPTURE_NUM 32767
-
-static int MaxCaptureNum = DEFAULT_MAX_CAPTURE_NUM;
-
-extern int
-onig_set_capture_num_limit(int num)
-{
- if (num < 0) return -1;
-
- MaxCaptureNum = num;
- return 0;
-}
-
-static unsigned int ParseDepthLimit = DEFAULT_PARSE_DEPTH_LIMIT;
-
-extern unsigned int
-onig_get_parse_depth_limit(void)
-{
- return ParseDepthLimit;
-}
-
-extern int
-onig_set_parse_depth_limit(unsigned int depth)
-{
- if (depth == 0)
- ParseDepthLimit = DEFAULT_PARSE_DEPTH_LIMIT;
- else
- ParseDepthLimit = depth;
- return 0;
-}
-
-static int
-bbuf_init(BBuf* buf, int size)
-{
- if (size <= 0) {
- size = 0;
- buf->p = NULL;
- }
- else {
- buf->p = (UChar* )xmalloc(size);
- if (IS_NULL(buf->p)) return(ONIGERR_MEMORY);
- }
-
- buf->alloc = size;
- buf->used = 0;
- return 0;
-}
-
-static void
-bbuf_free(BBuf* bbuf)
-{
- if (IS_NOT_NULL(bbuf)) {
- if (IS_NOT_NULL(bbuf->p)) xfree(bbuf->p);
- xfree(bbuf);
- }
-}
-
-static int
-bbuf_clone(BBuf** rto, BBuf* from)
-{
- int r;
- BBuf *to;
-
- *rto = to = (BBuf* )xmalloc(sizeof(BBuf));
- CHECK_NULL_RETURN_MEMERR(to);
- r = BB_INIT(to, from->alloc);
- if (r != 0) {
- xfree(to->p);
- *rto = 0;
- return r;
- }
- to->used = from->used;
- xmemcpy(to->p, from->p, from->used);
- return 0;
-}
-
-static int backref_rel_to_abs(int rel_no, ScanEnv* env)
-{
- if (rel_no > 0) {
- return env->num_mem + rel_no;
- }
- else {
- return env->num_mem + 1 + rel_no;
- }
-}
-
-#define OPTION_ON(v,f) ((v) |= (f))
-#define OPTION_OFF(v,f) ((v) &= ~(f))
-
-#define OPTION_NEGATE(v,f,negative) (negative) ? ((v) &= ~(f)) : ((v) |= (f))
-
-#define MBCODE_START_POS(enc) \
- (OnigCodePoint )(ONIGENC_MBC_MINLEN(enc) > 1 ? 0 : 0x80)
-
-#define SET_ALL_MULTI_BYTE_RANGE(enc, pbuf) \
- add_code_range_to_buf(pbuf, MBCODE_START_POS(enc), ~((OnigCodePoint )0))
-
-#define ADD_ALL_MULTI_BYTE_RANGE(enc, mbuf) do {\
- if (! ONIGENC_IS_SINGLEBYTE(enc)) {\
- r = SET_ALL_MULTI_BYTE_RANGE(enc, &(mbuf));\
- if (r != 0) return r;\
- }\
-} while (0)
-
-
-#define BITSET_IS_EMPTY(bs,empty) do {\
- int i;\
- empty = 1;\
- for (i = 0; i < (int )BITSET_SIZE; i++) {\
- if ((bs)[i] != 0) {\
- empty = 0; break;\
- }\
- }\
-} while (0)
-
-static void
-bitset_set_range(BitSetRef bs, int from, int to)
-{
- int i;
- for (i = from; i <= to && i < SINGLE_BYTE_SIZE; i++) {
- BITSET_SET_BIT(bs, i);
- }
-}
-
-#if 0
-static void
-bitset_set_all(BitSetRef bs)
-{
- int i;
- for (i = 0; i < BITSET_SIZE; i++) { bs[i] = ~((Bits )0); }
-}
-#endif
-
-static void
-bitset_invert(BitSetRef bs)
-{
- int i;
- for (i = 0; i < (int )BITSET_SIZE; i++) { bs[i] = ~(bs[i]); }
-}
-
-static void
-bitset_invert_to(BitSetRef from, BitSetRef to)
-{
- int i;
- for (i = 0; i < (int )BITSET_SIZE; i++) { to[i] = ~(from[i]); }
-}
-
-static void
-bitset_and(BitSetRef dest, BitSetRef bs)
-{
- int i;
- for (i = 0; i < (int )BITSET_SIZE; i++) { dest[i] &= bs[i]; }
-}
-
-static void
-bitset_or(BitSetRef dest, BitSetRef bs)
-{
- int i;
- for (i = 0; i < (int )BITSET_SIZE; i++) { dest[i] |= bs[i]; }
-}
-
-static void
-bitset_copy(BitSetRef dest, BitSetRef bs)
-{
- int i;
- for (i = 0; i < (int )BITSET_SIZE; i++) { dest[i] = bs[i]; }
-}
-
-extern int
-onig_strncmp(const UChar* s1, const UChar* s2, int n)
-{
- int x;
-
- while (n-- > 0) {
- x = *s2++ - *s1++;
- if (x) return x;
- }
- return 0;
-}
-
-extern void
-onig_strcpy(UChar* dest, const UChar* src, const UChar* end)
-{
- int len = (int )(end - src);
- if (len > 0) {
- xmemcpy(dest, src, len);
- dest[len] = (UChar )0;
- }
-}
-
-static int
-save_entry(ScanEnv* env, enum SaveType type, int* id)
-{
- int nid = env->save_num;
-
-#if 0
- if (IS_NULL(env->saves)) {
- int n = 10;
- env->saves = (SaveItem* )xmalloc(sizeof(SaveItem) * n);
- CHECK_NULL_RETURN_MEMERR(env->saves);
- env->save_alloc_num = n;
- }
- else if (env->save_alloc_num <= nid) {
- int n = env->save_alloc_num * 2;
- SaveItem* p = (SaveItem* )xrealloc(env->saves, sizeof(SaveItem) * n, sizeof(SaveItem)*env->save_alloc_num);
- CHECK_NULL_RETURN_MEMERR(p);
- env->saves = p;
- env->save_alloc_num = n;
- }
-
- env->saves[nid].type = type;
-#endif
-
- env->save_num++;
- *id = nid;
- return 0;
-}
-
-/* scan pattern methods */
-#define PEND_VALUE 0
-
-#define PFETCH_READY UChar* pfetch_prev
-#define PEND (p < end ? 0 : 1)
-#define PUNFETCH p = pfetch_prev
-#define PINC do { \
- pfetch_prev = p; \
- p += ONIGENC_MBC_ENC_LEN(enc, p); \
-} while (0)
-#define PFETCH(c) do { \
- c = ONIGENC_MBC_TO_CODE(enc, p, end); \
- pfetch_prev = p; \
- p += ONIGENC_MBC_ENC_LEN(enc, p); \
-} while (0)
-
-#define PINC_S do { \
- p += ONIGENC_MBC_ENC_LEN(enc, p); \
-} while (0)
-#define PFETCH_S(c) do { \
- c = ONIGENC_MBC_TO_CODE(enc, p, end); \
- p += ONIGENC_MBC_ENC_LEN(enc, p); \
-} while (0)
-
-#define PPEEK (p < end ? ONIGENC_MBC_TO_CODE(enc, p, end) : PEND_VALUE)
-#define PPEEK_IS(c) (PPEEK == (OnigCodePoint )c)
-
-static UChar*
-strcat_capa(UChar* dest, UChar* dest_end, const UChar* src, const UChar* src_end,
- int capa, int oldCapa)
-{
- UChar* r;
-
- if (dest)
- r = (UChar* )xrealloc(dest, capa + 1, oldCapa);
- else
- r = (UChar* )xmalloc(capa + 1);
-
- CHECK_NULL_RETURN(r);
- onig_strcpy(r + (dest_end - dest), src, src_end);
- return r;
-}
-
-/* dest on static area */
-static UChar*
-strcat_capa_from_static(UChar* dest, UChar* dest_end,
- const UChar* src, const UChar* src_end, int capa)
-{
- UChar* r;
-
- r = (UChar* )xmalloc(capa + 1);
- CHECK_NULL_RETURN(r);
- onig_strcpy(r, dest, dest_end);
- onig_strcpy(r + (dest_end - dest), src, src_end);
- return r;
-}
-
-
-#ifdef USE_ST_LIBRARY
-
-typedef struct {
- UChar* s;
- UChar* end;
-} st_str_end_key;
-
-static int
-str_end_cmp(st_str_end_key* x, st_str_end_key* y)
-{
- UChar *p, *q;
- int c;
-
- if ((x->end - x->s) != (y->end - y->s))
- return 1;
-
- p = x->s;
- q = y->s;
- while (p < x->end) {
- c = (int )*p - (int )*q;
- if (c != 0) return c;
-
- p++; q++;
- }
-
- return 0;
-}
-
-static int
-str_end_hash(st_str_end_key* x)
-{
- UChar *p;
- int val = 0;
-
- p = x->s;
- while (p < x->end) {
- val = val * 997 + (int )*p++;
- }
-
- return val + (val >> 5);
-}
-
-extern hash_table_type*
-onig_st_init_strend_table_with_size(int size)
-{
- static struct st_hash_type hashType = {
- str_end_cmp,
- str_end_hash,
- };
-
- return (hash_table_type* )
- onig_st_init_table_with_size(&hashType, size);
-}
-
-extern int
-onig_st_lookup_strend(hash_table_type* table, const UChar* str_key,
- const UChar* end_key, hash_data_type *value)
-{
- st_str_end_key key;
-
- key.s = (UChar* )str_key;
- key.end = (UChar* )end_key;
-
- return onig_st_lookup(table, (st_data_t )(&key), value);
-}
-
-extern int
-onig_st_insert_strend(hash_table_type* table, const UChar* str_key,
- const UChar* end_key, hash_data_type value)
-{
- st_str_end_key* key;
- int result;
-
- key = (st_str_end_key* )xmalloc(sizeof(st_str_end_key));
- CHECK_NULL_RETURN_MEMERR(key);
-
- key->s = (UChar* )str_key;
- key->end = (UChar* )end_key;
- result = onig_st_insert(table, (st_data_t )key, value);
- if (result) {
- xfree(key);
- }
- return result;
-}
-
-
-#ifdef USE_CALLOUT
-
-typedef struct {
- OnigEncoding enc;
- int type; /* callout type: single or not */
- UChar* s;
- UChar* end;
-} st_callout_name_key;
-
-static int
-callout_name_table_cmp(st_callout_name_key* x, st_callout_name_key* y)
-{
- UChar *p, *q;
- int c;
-
- if (x->enc != y->enc) return 1;
- if (x->type != y->type) return 1;
- if ((x->end - x->s) != (y->end - y->s))
- return 1;
-
- p = x->s;
- q = y->s;
- while (p < x->end) {
- c = (int )*p - (int )*q;
- if (c != 0) return c;
-
- p++; q++;
- }
-
- return 0;
-}
-
-static int
-callout_name_table_hash(st_callout_name_key* x)
-{
- UChar *p;
- int val = 0;
-
- p = x->s;
- while (p < x->end) {
- val = val * 997 + (int )*p++;
- }
-
- /* use intptr_t for escape warning in Windows */
- return val + (val >> 5) + ((intptr_t )x->enc & 0xffff) + x->type;
-}
-
-extern hash_table_type*
-onig_st_init_callout_name_table_with_size(int size)
-{
- static struct st_hash_type hashType = {
- callout_name_table_cmp,
- callout_name_table_hash,
- };
-
- return (hash_table_type* )
- onig_st_init_table_with_size(&hashType, size);
-}
-
-extern int
-onig_st_lookup_callout_name_table(hash_table_type* table,
- OnigEncoding enc,
- int type,
- const UChar* str_key,
- const UChar* end_key,
- hash_data_type *value)
-{
- st_callout_name_key key;
-
- key.enc = enc;
- key.type = type;
- key.s = (UChar* )str_key;
- key.end = (UChar* )end_key;
-
- return onig_st_lookup(table, (st_data_t )(&key), value);
-}
-
-static int
-st_insert_callout_name_table(hash_table_type* table,
- OnigEncoding enc, int type,
- UChar* str_key, UChar* end_key,
- hash_data_type value)
-{
- st_callout_name_key* key;
- int result;
-
- key = (st_callout_name_key* )xmalloc(sizeof(st_callout_name_key));
- CHECK_NULL_RETURN_MEMERR(key);
-
- /* key->s: don't duplicate, because str_key is duped in callout_name_entry() */
- key->enc = enc;
- key->type = type;
- key->s = str_key;
- key->end = end_key;
- result = onig_st_insert(table, (st_data_t )key, value);
- if (result) {
- xfree(key);
- }
- return result;
-}
-#endif
-
-#endif /* USE_ST_LIBRARY */
-
-
-#define INIT_NAME_BACKREFS_ALLOC_NUM 8
-
-typedef struct {
- UChar* name;
- int name_len; /* byte length */
- int back_num; /* number of backrefs */
- int back_alloc;
- int back_ref1;
- int* back_refs;
-} NameEntry;
-
-#ifdef USE_ST_LIBRARY
-
-#define INIT_NAMES_ALLOC_NUM 5
-
-typedef st_table NameTable;
-typedef st_data_t HashDataType; /* 1.6 st.h doesn't define st_data_t type */
-
-#define NAMEBUF_SIZE 24
-#define NAMEBUF_SIZE_1 25
-
-#ifdef ONIG_DEBUG
-static int
-i_print_name_entry(UChar* key, NameEntry* e, void* arg)
-{
- int i;
- FILE* fp = (FILE* )arg;
-
- fprintf(fp, "%s: ", e->name);
- if (e->back_num == 0)
- fputs("-", fp);
- else if (e->back_num == 1)
- fprintf(fp, "%d", e->back_ref1);
- else {
- for (i = 0; i < e->back_num; i++) {
- if (i > 0) fprintf(fp, ", ");
- fprintf(fp, "%d", e->back_refs[i]);
- }
- }
- fputs("\n", fp);
- return ST_CONTINUE;
-}
-
-extern int
-onig_print_names(FILE* fp, regex_t* reg)
-{
- NameTable* t = (NameTable* )reg->name_table;
-
- if (IS_NOT_NULL(t)) {
- fprintf(fp, "name table\n");
- onig_st_foreach(t, i_print_name_entry, (HashDataType )fp);
- fputs("\n", fp);
- }
- return 0;
-}
-#endif /* ONIG_DEBUG */
-
-static int
-i_free_name_entry(UChar* key, NameEntry* e, void* arg ARG_UNUSED)
-{
- xfree(e->name);
- if (IS_NOT_NULL(e->back_refs)) xfree(e->back_refs);
- xfree(key);
- xfree(e);
- return ST_DELETE;
-}
-
-static int
-names_clear(regex_t* reg)
-{
- NameTable* t = (NameTable* )reg->name_table;
-
- if (IS_NOT_NULL(t)) {
- onig_st_foreach(t, i_free_name_entry, 0);
- }
- return 0;
-}
-
-extern int
-onig_names_free(regex_t* reg)
-{
- int r;
- NameTable* t;
-
- r = names_clear(reg);
- if (r != 0) return r;
-
- t = (NameTable* )reg->name_table;
- if (IS_NOT_NULL(t)) onig_st_free_table(t);
- reg->name_table = (void* )NULL;
- return 0;
-}
-
-static NameEntry*
-name_find(regex_t* reg, const UChar* name, const UChar* name_end)
-{
- NameEntry* e;
- NameTable* t = (NameTable* )reg->name_table;
-
- e = (NameEntry* )NULL;
- if (IS_NOT_NULL(t)) {
- onig_st_lookup_strend(t, name, name_end, (HashDataType* )((void* )(&e)));
- }
- return e;
-}
-
-typedef struct {
- int (*func)(const UChar*, const UChar*,int,int*,regex_t*,void*);
- regex_t* reg;
- void* arg;
- int ret;
- OnigEncoding enc;
-} INamesArg;
-
-static int
-i_names(UChar* key ARG_UNUSED, NameEntry* e, INamesArg* arg)
-{
- int r = (*(arg->func))(e->name,
- e->name + e->name_len,
- e->back_num,
- (e->back_num > 1 ? e->back_refs : &(e->back_ref1)),
- arg->reg, arg->arg);
- if (r != 0) {
- arg->ret = r;
- return ST_STOP;
- }
- return ST_CONTINUE;
-}
-
-extern int
-onig_foreach_name(regex_t* reg,
- int (*func)(const UChar*, const UChar*,int,int*,regex_t*,void*), void* arg)
-{
- INamesArg narg;
- NameTable* t = (NameTable* )reg->name_table;
-
- narg.ret = 0;
- if (IS_NOT_NULL(t)) {
- narg.func = func;
- narg.reg = reg;
- narg.arg = arg;
- narg.enc = reg->enc; /* should be pattern encoding. */
- onig_st_foreach(t, i_names, (HashDataType )&narg);
- }
- return narg.ret;
-}
-
-static int
-i_renumber_name(UChar* key ARG_UNUSED, NameEntry* e, GroupNumRemap* map)
-{
- int i;
-
- if (e->back_num > 1) {
- for (i = 0; i < e->back_num; i++) {
- e->back_refs[i] = map[e->back_refs[i]].new_val;
- }
- }
- else if (e->back_num == 1) {
- e->back_ref1 = map[e->back_ref1].new_val;
- }
-
- return ST_CONTINUE;
-}
-
-extern int
-onig_renumber_name_table(regex_t* reg, GroupNumRemap* map)
-{
- NameTable* t = (NameTable* )reg->name_table;
-
- if (IS_NOT_NULL(t)) {
- onig_st_foreach(t, i_renumber_name, (HashDataType )map);
- }
- return 0;
-}
-
-
-extern int
-onig_number_of_names(regex_t* reg)
-{
- NameTable* t = (NameTable* )reg->name_table;
-
- if (IS_NOT_NULL(t))
- return t->num_entries;
- else
- return 0;
-}
-
-#else /* USE_ST_LIBRARY */
-
-#define INIT_NAMES_ALLOC_NUM 8
-
-typedef struct {
- NameEntry* e;
- int num;
- int alloc;
-} NameTable;
-
-#ifdef ONIG_DEBUG
-extern int
-onig_print_names(FILE* fp, regex_t* reg)
-{
- int i, j;
- NameEntry* e;
- NameTable* t = (NameTable* )reg->name_table;
-
- if (IS_NOT_NULL(t) && t->num > 0) {
- fprintf(fp, "name table\n");
- for (i = 0; i < t->num; i++) {
- e = &(t->e[i]);
- fprintf(fp, "%s: ", e->name);
- if (e->back_num == 0) {
- fputs("-", fp);
- }
- else if (e->back_num == 1) {
- fprintf(fp, "%d", e->back_ref1);
- }
- else {
- for (j = 0; j < e->back_num; j++) {
- if (j > 0) fprintf(fp, ", ");
- fprintf(fp, "%d", e->back_refs[j]);
- }
- }
- fputs("\n", fp);
- }
- fputs("\n", fp);
- }
- return 0;
-}
-#endif
-
-static int
-names_clear(regex_t* reg)
-{
- int i;
- NameEntry* e;
- NameTable* t = (NameTable* )reg->name_table;
-
- if (IS_NOT_NULL(t)) {
- for (i = 0; i < t->num; i++) {
- e = &(t->e[i]);
- if (IS_NOT_NULL(e->name)) {
- xfree(e->name);
- e->name = NULL;
- e->name_len = 0;
- e->back_num = 0;
- e->back_alloc = 0;
- if (IS_NOT_NULL(e->back_refs)) xfree(e->back_refs);
- e->back_refs = (int* )NULL;
- }
- }
- if (IS_NOT_NULL(t->e)) {
- xfree(t->e);
- t->e = NULL;
- }
- t->num = 0;
- }
- return 0;
-}
-
-extern int
-onig_names_free(regex_t* reg)
-{
- int r;
- NameTable* t;
-
- r = names_clear(reg);
- if (r != 0) return r;
-
- t = (NameTable* )reg->name_table;
- if (IS_NOT_NULL(t)) xfree(t);
- reg->name_table = NULL;
- return 0;
-}
-
-static NameEntry*
-name_find(regex_t* reg, UChar* name, UChar* name_end)
-{
- int i, len;
- NameEntry* e;
- NameTable* t = (NameTable* )reg->name_table;
-
- if (IS_NOT_NULL(t)) {
- len = name_end - name;
- for (i = 0; i < t->num; i++) {
- e = &(t->e[i]);
- if (len == e->name_len && onig_strncmp(name, e->name, len) == 0)
- return e;
- }
- }
- return (NameEntry* )NULL;
-}
-
-extern int
-onig_foreach_name(regex_t* reg,
- int (*func)(const UChar*, const UChar*,int,int*,regex_t*,void*), void* arg)
-{
- int i, r;
- NameEntry* e;
- NameTable* t = (NameTable* )reg->name_table;
-
- if (IS_NOT_NULL(t)) {
- for (i = 0; i < t->num; i++) {
- e = &(t->e[i]);
- r = (*func)(e->name, e->name + e->name_len, e->back_num,
- (e->back_num > 1 ? e->back_refs : &(e->back_ref1)),
- reg, arg);
- if (r != 0) return r;
- }
- }
- return 0;
-}
-
-extern int
-onig_number_of_names(regex_t* reg)
-{
- NameTable* t = (NameTable* )reg->name_table;
-
- if (IS_NOT_NULL(t))
- return t->num;
- else
- return 0;
-}
-
-#endif /* else USE_ST_LIBRARY */
-
-static int
-name_add(regex_t* reg, UChar* name, UChar* name_end, int backref, ScanEnv* env)
-{
- int r;
- int alloc;
- NameEntry* e;
- NameTable* t = (NameTable* )reg->name_table;
-
- if (name_end - name <= 0)
- return ONIGERR_EMPTY_GROUP_NAME;
-
- e = name_find(reg, name, name_end);
- if (IS_NULL(e)) {
-#ifdef USE_ST_LIBRARY
- if (IS_NULL(t)) {
- t = onig_st_init_strend_table_with_size(INIT_NAMES_ALLOC_NUM);
- CHECK_NULL_RETURN_MEMERR(t);
- reg->name_table = (void* )t;
- }
- e = (NameEntry* )xmalloc(sizeof(NameEntry));
- CHECK_NULL_RETURN_MEMERR(e);
-
- e->name = onigenc_strdup(reg->enc, name, name_end);
- if (IS_NULL(e->name)) {
- xfree(e); return ONIGERR_MEMORY;
- }
- r = onig_st_insert_strend(t, e->name, (e->name + (name_end - name)),
- (HashDataType )e);
- if (r < 0) return r;
-
- e->name_len = (int )(name_end - name);
- e->back_num = 0;
- e->back_alloc = 0;
- e->back_refs = (int* )NULL;
-
-#else
-
- if (IS_NULL(t)) {
- alloc = INIT_NAMES_ALLOC_NUM;
- t = (NameTable* )xmalloc(sizeof(NameTable));
- CHECK_NULL_RETURN_MEMERR(t);
- t->e = NULL;
- t->alloc = 0;
- t->num = 0;
-
- t->e = (NameEntry* )xmalloc(sizeof(NameEntry) * alloc);
- if (IS_NULL(t->e)) {
- xfree(t);
- return ONIGERR_MEMORY;
- }
- t->alloc = alloc;
- reg->name_table = t;
- goto clear;
- }
- else if (t->num == t->alloc) {
- int i;
-
- alloc = t->alloc * 2;
- t->e = (NameEntry* )xrealloc(t->e, sizeof(NameEntry) * alloc, sizeof(NameEntry) * t->alloc);
- CHECK_NULL_RETURN_MEMERR(t->e);
- t->alloc = alloc;
-
- clear:
- for (i = t->num; i < t->alloc; i++) {
- t->e[i].name = NULL;
- t->e[i].name_len = 0;
- t->e[i].back_num = 0;
- t->e[i].back_alloc = 0;
- t->e[i].back_refs = (int* )NULL;
- }
- }
- e = &(t->e[t->num]);
- t->num++;
- e->name = onigenc_strdup(reg->enc, name, name_end);
- if (IS_NULL(e->name)) return ONIGERR_MEMORY;
- e->name_len = name_end - name;
-#endif
- }
-
- if (e->back_num >= 1 &&
- ! IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_MULTIPLEX_DEFINITION_NAME)) {
- onig_scan_env_set_error_string(env, ONIGERR_MULTIPLEX_DEFINED_NAME,
- name, name_end);
- return ONIGERR_MULTIPLEX_DEFINED_NAME;
- }
-
- e->back_num++;
- if (e->back_num == 1) {
- e->back_ref1 = backref;
- }
- else {
- if (e->back_num == 2) {
- alloc = INIT_NAME_BACKREFS_ALLOC_NUM;
- e->back_refs = (int* )xmalloc(sizeof(int) * alloc);
- CHECK_NULL_RETURN_MEMERR(e->back_refs);
- e->back_alloc = alloc;
- e->back_refs[0] = e->back_ref1;
- e->back_refs[1] = backref;
- }
- else {
- if (e->back_num > e->back_alloc) {
- alloc = e->back_alloc * 2;
- e->back_refs = (int* )xrealloc(e->back_refs, sizeof(int) * alloc, sizeof(int) * e->back_alloc);
- CHECK_NULL_RETURN_MEMERR(e->back_refs);
- e->back_alloc = alloc;
- }
- e->back_refs[e->back_num - 1] = backref;
- }
- }
-
- return 0;
-}
-
-extern int
-onig_name_to_group_numbers(regex_t* reg, const UChar* name,
- const UChar* name_end, int** nums)
-{
- NameEntry* e = name_find(reg, name, name_end);
-
- if (IS_NULL(e)) return ONIGERR_UNDEFINED_NAME_REFERENCE;
-
- switch (e->back_num) {
- case 0:
- break;
- case 1:
- *nums = &(e->back_ref1);
- break;
- default:
- *nums = e->back_refs;
- break;
- }
- return e->back_num;
-}
-
-static int
-name_to_group_numbers(ScanEnv* env, const UChar* name, const UChar* name_end,
- int** nums)
-{
- regex_t* reg;
- NameEntry* e;
-
- reg = env->reg;
- e = name_find(reg, name, name_end);
-
- if (IS_NULL(e)) {
- onig_scan_env_set_error_string(env, ONIGERR_UNDEFINED_NAME_REFERENCE,
- (UChar* )name, (UChar* )name_end);
- return ONIGERR_UNDEFINED_NAME_REFERENCE;
- }
-
- switch (e->back_num) {
- case 0:
- break;
- case 1:
- *nums = &(e->back_ref1);
- break;
- default:
- *nums = e->back_refs;
- break;
- }
- return e->back_num;
-}
-
-extern int
-onig_name_to_backref_number(regex_t* reg, const UChar* name,
- const UChar* name_end, OnigRegion *region)
-{
- int i, n, *nums;
-
- n = onig_name_to_group_numbers(reg, name, name_end, &nums);
- if (n < 0)
- return n;
- else if (n == 0)
- return ONIGERR_PARSER_BUG;
- else if (n == 1)
- return nums[0];
- else {
- if (IS_NOT_NULL(region)) {
- for (i = n - 1; i >= 0; i--) {
- if (region->beg[nums[i]] != ONIG_REGION_NOTPOS)
- return nums[i];
- }
- }
- return nums[n - 1];
- }
-}
-
-extern int
-onig_noname_group_capture_is_active(regex_t* reg)
-{
- if (ONIG_IS_OPTION_ON(reg->options, ONIG_OPTION_DONT_CAPTURE_GROUP))
- return 0;
-
- if (onig_number_of_names(reg) > 0 &&
- IS_SYNTAX_BV(reg->syntax, ONIG_SYN_CAPTURE_ONLY_NAMED_GROUP) &&
- !ONIG_IS_OPTION_ON(reg->options, ONIG_OPTION_CAPTURE_GROUP)) {
- return 0;
- }
-
- return 1;
-}
-
-#ifdef USE_CALLOUT
-
-typedef struct {
- OnigCalloutType type;
- int in;
- OnigCalloutFunc start_func;
- OnigCalloutFunc end_func;
- int arg_num;
- int opt_arg_num;
- unsigned int arg_types[ONIG_CALLOUT_MAX_ARGS_NUM];
- OnigValue opt_defaults[ONIG_CALLOUT_MAX_ARGS_NUM];
- UChar* name; /* reference to GlobalCalloutNameTable entry: e->name */
-} CalloutNameListEntry;
-
-typedef struct {
- int n;
- int alloc;
- CalloutNameListEntry* v;
-} CalloutNameListType;
-
-static CalloutNameListType* GlobalCalloutNameList;
-
-static int
-make_callout_func_list(CalloutNameListType** rs, int init_size)
-{
- CalloutNameListType* s;
- CalloutNameListEntry* v;
-
- *rs = 0;
-
- s = xmalloc(sizeof(*s));
- if (IS_NULL(s)) return ONIGERR_MEMORY;
-
- v = (CalloutNameListEntry* )xmalloc(sizeof(CalloutNameListEntry) * init_size);
- if (IS_NULL(v)) {
- xfree(s);
- return ONIGERR_MEMORY;
- }
-
- s->n = 0;
- s->alloc = init_size;
- s->v = v;
-
- *rs = s;
- return ONIG_NORMAL;
-}
-
-static void
-free_callout_func_list(CalloutNameListType* s)
-{
- if (IS_NOT_NULL(s)) {
- if (IS_NOT_NULL(s->v)) {
- int i, j;
-
- for (i = 0; i < s->n; i++) {
- CalloutNameListEntry* e = s->v + i;
- for (j = e->arg_num - e->opt_arg_num; j < e->arg_num; j++) {
- if (e->arg_types[j] == ONIG_TYPE_STRING) {
- UChar* p = e->opt_defaults[j].s.start;
- if (IS_NOT_NULL(p)) xfree(p);
- }
- }
- }
- xfree(s->v);
- }
- xfree(s);
- }
-}
-
-static int
-callout_func_list_add(CalloutNameListType* s, int* rid)
-{
- if (s->n >= s->alloc) {
- int new_size = s->alloc * 2;
- CalloutNameListEntry* nv = (CalloutNameListEntry* )
- xrealloc(s->v, sizeof(CalloutNameListEntry) * new_size, sizeof(CalloutNameListEntry)*s->alloc);
- if (IS_NULL(nv)) return ONIGERR_MEMORY;
-
- s->alloc = new_size;
- s->v = nv;
- }
-
- *rid = s->n;
-
- xmemset(&(s->v[s->n]), 0, sizeof(*(s->v)));
- s->n++;
- return ONIG_NORMAL;
-}
-
-
-typedef struct {
- UChar* name;
- int name_len; /* byte length */
- int id;
-} CalloutNameEntry;
-
-#ifdef USE_ST_LIBRARY
-typedef st_table CalloutNameTable;
-#else
-typedef struct {
- CalloutNameEntry* e;
- int num;
- int alloc;
-} CalloutNameTable;
-#endif
-
-static CalloutNameTable* GlobalCalloutNameTable;
-static int CalloutNameIDCounter;
-
-#ifdef USE_ST_LIBRARY
-
-static int
-i_free_callout_name_entry(st_callout_name_key* key, CalloutNameEntry* e,
- void* arg ARG_UNUSED)
-{
- xfree(e->name);
- /*xfree(key->s); */ /* is same as e->name */
- xfree(key);
- xfree(e);
- return ST_DELETE;
-}
-
-static int
-callout_name_table_clear(CalloutNameTable* t)
-{
- if (IS_NOT_NULL(t)) {
- onig_st_foreach(t, i_free_callout_name_entry, 0);
- }
- return 0;
-}
-
-static int
-global_callout_name_table_free(void)
-{
- if (IS_NOT_NULL(GlobalCalloutNameTable)) {
- int r = callout_name_table_clear(GlobalCalloutNameTable);
- if (r != 0) return r;
-
- onig_st_free_table(GlobalCalloutNameTable);
- GlobalCalloutNameTable = 0;
- CalloutNameIDCounter = 0;
- }
-
- return 0;
-}
-
-static CalloutNameEntry*
-callout_name_find(OnigEncoding enc, int is_not_single,
- const UChar* name, const UChar* name_end)
-{
- int r;
- CalloutNameEntry* e;
- CalloutNameTable* t = GlobalCalloutNameTable;
-
- e = (CalloutNameEntry* )NULL;
- if (IS_NOT_NULL(t)) {
- r = onig_st_lookup_callout_name_table(t, enc, is_not_single, name, name_end,
- (HashDataType* )((void* )(&e)));
- if (r == 0) { /* not found */
- if (enc != ONIG_ENCODING_ASCII &&
- ONIGENC_IS_ASCII_COMPATIBLE_ENCODING(enc)) {
- enc = ONIG_ENCODING_ASCII;
- onig_st_lookup_callout_name_table(t, enc, is_not_single, name, name_end,
- (HashDataType* )((void* )(&e)));
- }
- }
- }
- return e;
-}
-
-#else
-
-static int
-callout_name_table_clear(CalloutNameTable* t)
-{
- int i;
- CalloutNameEntry* e;
-
- if (IS_NOT_NULL(t)) {
- for (i = 0; i < t->num; i++) {
- e = &(t->e[i]);
- if (IS_NOT_NULL(e->name)) {
- xfree(e->name);
- e->name = NULL;
- e->name_len = 0;
- e->id = 0;
- e->func = 0;
- }
- }
- if (IS_NOT_NULL(t->e)) {
- xfree(t->e);
- t->e = NULL;
- }
- t->num = 0;
- }
- return 0;
-}
-
-static int
-global_callout_name_table_free(void)
-{
- if (IS_NOT_NULL(GlobalCalloutNameTable)) {
- int r = callout_name_table_clear(GlobalCalloutNameTable);
- if (r != 0) return r;
-
- xfree(GlobalCalloutNameTable);
- GlobalCalloutNameTable = 0;
- CalloutNameIDCounter = 0;
- }
- return 0;
-}
-
-static CalloutNameEntry*
-callout_name_find(UChar* name, UChar* name_end)
-{
- int i, len;
- CalloutNameEntry* e;
- CalloutNameTable* t = Calloutnames;
-
- if (IS_NOT_NULL(t)) {
- len = name_end - name;
- for (i = 0; i < t->num; i++) {
- e = &(t->e[i]);
- if (len == e->name_len && onig_strncmp(name, e->name, len) == 0)
- return e;
- }
- }
- return (CalloutNameEntry* )NULL;
-}
-
-#endif
-
-/* name string must be single byte char string. */
-static int
-callout_name_entry(CalloutNameEntry** rentry, OnigEncoding enc,
- int is_not_single, UChar* name, UChar* name_end)
-{
- int r;
- CalloutNameEntry* e;
- CalloutNameTable* t = GlobalCalloutNameTable;
-
- *rentry = 0;
- if (name_end - name <= 0)
- return ONIGERR_INVALID_CALLOUT_NAME;
-
- e = callout_name_find(enc, is_not_single, name, name_end);
- if (IS_NULL(e)) {
-#ifdef USE_ST_LIBRARY
- if (IS_NULL(t)) {
- t = onig_st_init_callout_name_table_with_size(INIT_NAMES_ALLOC_NUM);
- CHECK_NULL_RETURN_MEMERR(t);
- GlobalCalloutNameTable = t;
- }
- e = (CalloutNameEntry* )xmalloc(sizeof(CalloutNameEntry));
- CHECK_NULL_RETURN_MEMERR(e);
-
- e->name = onigenc_strdup(enc, name, name_end);
- if (IS_NULL(e->name)) {
- xfree(e); return ONIGERR_MEMORY;
- }
-
- r = st_insert_callout_name_table(t, enc, is_not_single,
- e->name, (e->name + (name_end - name)),
- (HashDataType )e);
- if (r < 0) return r;
-
-#else
-
- int alloc;
-
- if (IS_NULL(t)) {
- alloc = INIT_NAMES_ALLOC_NUM;
- t = (CalloutNameTable* )xmalloc(sizeof(CalloutNameTable));
- CHECK_NULL_RETURN_MEMERR(t);
- t->e = NULL;
- t->alloc = 0;
- t->num = 0;
-
- t->e = (CalloutNameEntry* )xmalloc(sizeof(CalloutNameEntry) * alloc);
- if (IS_NULL(t->e)) {
- xfree(t);
- return ONIGERR_MEMORY;
- }
- t->alloc = alloc;
- GlobalCalloutNameTable = t;
- goto clear;
- }
- else if (t->num == t->alloc) {
- int i;
-
- alloc = t->alloc * 2;
- t->e = (CalloutNameEntry* )xrealloc(t->e, sizeof(CalloutNameEntry) * alloc, sizeof(CalloutNameEntry)*t->alloc);
- CHECK_NULL_RETURN_MEMERR(t->e);
- t->alloc = alloc;
-
- clear:
- for (i = t->num; i < t->alloc; i++) {
- t->e[i].name = NULL;
- t->e[i].name_len = 0;
- t->e[i].id = 0;
- }
- }
- e = &(t->e[t->num]);
- t->num++;
- e->name = onigenc_strdup(enc, name, name_end);
- if (IS_NULL(e->name)) return ONIGERR_MEMORY;
-#endif
-
- CalloutNameIDCounter++;
- e->id = CalloutNameIDCounter;
- e->name_len = (int )(name_end - name);
- }
-
- *rentry = e;
- return e->id;
-}
-
-static int
-is_allowed_callout_name(OnigEncoding enc, UChar* name, UChar* name_end)
-{
- UChar* p;
- OnigCodePoint c;
-
- if (name >= name_end) return 0;
-
- p = name;
- while (p < name_end) {
- c = ONIGENC_MBC_TO_CODE(enc, p, name_end);
- if (! IS_ALLOWED_CODE_IN_CALLOUT_NAME(c))
- return 0;
-
- if (p == name) {
- if (c >= '0' && c <= '9') return 0;
- }
-
- p += ONIGENC_MBC_ENC_LEN(enc, p);
- }
-
- return 1;
-}
-
-static int
-is_allowed_callout_tag_name(OnigEncoding enc, UChar* name, UChar* name_end)
-{
- UChar* p;
- OnigCodePoint c;
-
- if (name >= name_end) return 0;
-
- p = name;
- while (p < name_end) {
- c = ONIGENC_MBC_TO_CODE(enc, p, name_end);
- if (! IS_ALLOWED_CODE_IN_CALLOUT_TAG_NAME(c))
- return 0;
-
- if (p == name) {
- if (c >= '0' && c <= '9') return 0;
- }
-
- p += ONIGENC_MBC_ENC_LEN(enc, p);
- }
-
- return 1;
-}
-
-extern int
-onig_set_callout_of_name(OnigEncoding enc, OnigCalloutType callout_type,
- UChar* name, UChar* name_end, int in,
- OnigCalloutFunc start_func,
- OnigCalloutFunc end_func,
- int arg_num, unsigned int arg_types[],
- int opt_arg_num, OnigValue opt_defaults[])
-{
- int r;
- int i;
- int j;
- int id;
- int is_not_single;
- CalloutNameEntry* e;
- CalloutNameListEntry* fe;
-
- if (callout_type != ONIG_CALLOUT_TYPE_SINGLE)
- return ONIGERR_INVALID_ARGUMENT;
-
- if (arg_num < 0 || arg_num > ONIG_CALLOUT_MAX_ARGS_NUM)
- return ONIGERR_INVALID_CALLOUT_ARG;
-
- if (opt_arg_num < 0 || opt_arg_num > arg_num)
- return ONIGERR_INVALID_CALLOUT_ARG;
-
- if (start_func == 0 && end_func == 0)
- return ONIGERR_INVALID_CALLOUT_ARG;
-
- if ((in & ONIG_CALLOUT_IN_PROGRESS) == 0 && (in & ONIG_CALLOUT_IN_RETRACTION) == 0)
- return ONIGERR_INVALID_CALLOUT_ARG;
-
- for (i = 0; i < arg_num; i++) {
- unsigned int t = arg_types[i];
- if (t == ONIG_TYPE_VOID)
- return ONIGERR_INVALID_CALLOUT_ARG;
- else {
- if (i >= arg_num - opt_arg_num) {
- if (t != ONIG_TYPE_LONG && t != ONIG_TYPE_CHAR && t != ONIG_TYPE_STRING &&
- t != ONIG_TYPE_TAG)
- return ONIGERR_INVALID_CALLOUT_ARG;
- }
- else {
- if (t != ONIG_TYPE_LONG) {
- t = t & ~ONIG_TYPE_LONG;
- if (t != ONIG_TYPE_CHAR && t != ONIG_TYPE_STRING && t != ONIG_TYPE_TAG)
- return ONIGERR_INVALID_CALLOUT_ARG;
- }
- }
- }
- }
-
- if (! is_allowed_callout_name(enc, name, name_end)) {
- return ONIGERR_INVALID_CALLOUT_NAME;
- }
-
- is_not_single = (callout_type != ONIG_CALLOUT_TYPE_SINGLE);
- id = callout_name_entry(&e, enc, is_not_single, name, name_end);
- if (id < 0) return id;
-
- r = ONIG_NORMAL;
- if (IS_NULL(GlobalCalloutNameList)) {
- r = make_callout_func_list(&GlobalCalloutNameList, 10);
- if (r != ONIG_NORMAL) return r;
- }
-
- while (id >= GlobalCalloutNameList->n) {
- int rid;
- r = callout_func_list_add(GlobalCalloutNameList, &rid);
- if (r != ONIG_NORMAL) return r;
- }
-
- fe = GlobalCalloutNameList->v + id;
- fe->type = callout_type;
- fe->in = in;
- fe->start_func = start_func;
- fe->end_func = end_func;
- fe->arg_num = arg_num;
- fe->opt_arg_num = opt_arg_num;
- fe->name = e->name;
-
- for (i = 0; i < arg_num; i++) {
- fe->arg_types[i] = arg_types[i];
- }
- for (i = arg_num - opt_arg_num, j = 0; i < arg_num; i++, j++) {
- if(IS_NULL(opt_defaults))return ONIGERR_INVALID_ARGUMENT;
- if (fe->arg_types[i] == ONIG_TYPE_STRING) {
- OnigValue* val;
- UChar* ds;
-
- if (IS_NULL(opt_defaults)) return ONIGERR_INVALID_ARGUMENT;
-
- val = opt_defaults + j;
- ds = onigenc_strdup(enc, val->s.start, val->s.end);
- CHECK_NULL_RETURN_MEMERR(ds);
-
- fe->opt_defaults[i].s.start = ds;
- fe->opt_defaults[i].s.end = ds + (val->s.end - val->s.start);
- }
- else {
- fe->opt_defaults[i] = opt_defaults[j];
- }
- }
-
- r = id;
- return r;
-}
-
-static int
-get_callout_name_id_by_name(OnigEncoding enc, int is_not_single,
- UChar* name, UChar* name_end, int* rid)
-{
- int r;
- CalloutNameEntry* e;
-
- if (! is_allowed_callout_name(enc, name, name_end)) {
- return ONIGERR_INVALID_CALLOUT_NAME;
- }
-
- e = callout_name_find(enc, is_not_single, name, name_end);
- if (IS_NULL(e)) {
- return ONIGERR_UNDEFINED_CALLOUT_NAME;
- }
-
- r = ONIG_NORMAL;
- *rid = e->id;
-
- return r;
-}
-
-extern OnigCalloutFunc
-onig_get_callout_start_func(regex_t* reg, int callout_num)
-{
- /* If used for callouts of contents, return 0. */
- CalloutListEntry* e;
-
- e = onig_reg_callout_list_at(reg, callout_num);
- CHECK_NULL_RETURN(e);
- return e->start_func;
-}
-
-extern const UChar*
-onig_get_callout_tag_start(regex_t* reg, int callout_num)
-{
- CalloutListEntry* e = onig_reg_callout_list_at(reg, callout_num);
- CHECK_NULL_RETURN(e);
- return e->tag_start;
-}
-
-extern const UChar*
-onig_get_callout_tag_end(regex_t* reg, int callout_num)
-{
- CalloutListEntry* e = onig_reg_callout_list_at(reg, callout_num);
- CHECK_NULL_RETURN(e);
- return e->tag_end;
-}
-
-
-extern OnigCalloutType
-onig_get_callout_type_by_name_id(int name_id)
-{
- if (name_id < 0 || name_id >= GlobalCalloutNameList->n)
- return 0;
-
- return GlobalCalloutNameList->v[name_id].type;
-}
-
-extern OnigCalloutFunc
-onig_get_callout_start_func_by_name_id(int name_id)
-{
- if (name_id < 0 || name_id >= GlobalCalloutNameList->n)
- return 0;
-
- return GlobalCalloutNameList->v[name_id].start_func;
-}
-
-extern OnigCalloutFunc
-onig_get_callout_end_func_by_name_id(int name_id)
-{
- if (name_id < 0 || name_id >= GlobalCalloutNameList->n)
- return 0;
-
- return GlobalCalloutNameList->v[name_id].end_func;
-}
-
-extern int
-onig_get_callout_in_by_name_id(int name_id)
-{
- if (name_id < 0 || name_id >= GlobalCalloutNameList->n)
- return 0;
-
- return GlobalCalloutNameList->v[name_id].in;
-}
-
-static int
-get_callout_arg_num_by_name_id(int name_id)
-{
- return GlobalCalloutNameList->v[name_id].arg_num;
-}
-
-static int
-get_callout_opt_arg_num_by_name_id(int name_id)
-{
- return GlobalCalloutNameList->v[name_id].opt_arg_num;
-}
-
-static unsigned int
-get_callout_arg_type_by_name_id(int name_id, int index)
-{
- return GlobalCalloutNameList->v[name_id].arg_types[index];
-}
-
-static OnigValue
-get_callout_opt_default_by_name_id(int name_id, int index)
-{
- return GlobalCalloutNameList->v[name_id].opt_defaults[index];
-}
-
-extern UChar*
-onig_get_callout_name_by_name_id(int name_id)
-{
- if (name_id < 0 || name_id >= GlobalCalloutNameList->n)
- return 0;
-
- return GlobalCalloutNameList->v[name_id].name;
-}
-
-extern int
-onig_global_callout_names_free(void)
-{
- free_callout_func_list(GlobalCalloutNameList);
- GlobalCalloutNameList = 0;
-
- global_callout_name_table_free();
- return ONIG_NORMAL;
-}
-
-
-typedef st_table CalloutTagTable;
-typedef intptr_t CalloutTagVal;
-
-#define CALLOUT_TAG_LIST_FLAG_TAG_EXIST (1<<0)
-
-static int
-i_callout_callout_list_set(UChar* key, CalloutTagVal e, void* arg)
-{
- int num;
- RegexExt* ext = (RegexExt* )arg;
-
- num = (int )e - 1;
- ext->callout_list[num].flag |= CALLOUT_TAG_LIST_FLAG_TAG_EXIST;
- return ST_CONTINUE;
-}
-
-static int
-setup_ext_callout_list_values(regex_t* reg)
-{
- int i, j;
- RegexExt* ext;
-
- ext = reg->extp;
- if (IS_NOT_NULL(ext->tag_table)) {
- onig_st_foreach((CalloutTagTable *)ext->tag_table, i_callout_callout_list_set,
- (st_data_t )ext);
- }
-
- for (i = 0; i < ext->callout_num; i++) {
- CalloutListEntry* e = ext->callout_list + i;
- if (e->of == ONIG_CALLOUT_OF_NAME) {
- for (j = 0; j < e->u.arg.num; j++) {
- if (e->u.arg.types[j] == ONIG_TYPE_TAG) {
- UChar* start;
- UChar* end;
- int num;
- start = e->u.arg.vals[j].s.start;
- end = e->u.arg.vals[j].s.end;
- num = onig_get_callout_num_by_tag(reg, start, end);
- if (num < 0) return num;
- e->u.arg.vals[j].tag = num;
- }
- }
- }
- }
-
- return ONIG_NORMAL;
-}
-
-extern int
-onig_callout_tag_is_exist_at_callout_num(regex_t* reg, int callout_num)
-{
- RegexExt* ext = reg->extp;
-
- if (IS_NULL(ext) || IS_NULL(ext->callout_list)) return 0;
- if (callout_num > ext->callout_num) return 0;
-
- return (ext->callout_list[callout_num].flag &
- CALLOUT_TAG_LIST_FLAG_TAG_EXIST) != 0;
-}
-
-static int
-i_free_callout_tag_entry(UChar* key, CalloutTagVal e, void* arg ARG_UNUSED)
-{
- xfree(key);
- return ST_DELETE;
-}
-
-static int
-callout_tag_table_clear(CalloutTagTable* t)
-{
- if (IS_NOT_NULL(t)) {
- onig_st_foreach(t, i_free_callout_tag_entry, 0);
- }
- return 0;
-}
-
-extern int
-onig_callout_tag_table_free(void* table)
-{
- CalloutTagTable* t = (CalloutTagTable* )table;
-
- if (IS_NOT_NULL(t)) {
- int r = callout_tag_table_clear(t);
- if (r != 0) return r;
-
- onig_st_free_table(t);
- }
-
- return 0;
-}
-
-extern int
-onig_get_callout_num_by_tag(regex_t* reg,
- const UChar* tag, const UChar* tag_end)
-{
- int r;
- RegexExt* ext;
- CalloutTagVal e;
-
- ext = reg->extp;
- if (IS_NULL(ext) || IS_NULL(ext->tag_table))
- return ONIGERR_INVALID_CALLOUT_TAG_NAME;
-
- r = onig_st_lookup_strend(ext->tag_table, tag, tag_end,
- (HashDataType* )((void* )(&e)));
- if (r == 0) return ONIGERR_INVALID_CALLOUT_TAG_NAME;
- return (int )e;
-}
-
-static CalloutTagVal
-callout_tag_find(CalloutTagTable* t, const UChar* name, const UChar* name_end)
-{
- CalloutTagVal e;
-
- e = -1;
- if (IS_NOT_NULL(t)) {
- onig_st_lookup_strend(t, name, name_end, (HashDataType* )((void* )(&e)));
- }
- return e;
-}
-
-static int
-callout_tag_table_new(CalloutTagTable** rt)
-{
- CalloutTagTable* t;
-
- *rt = 0;
- t = onig_st_init_strend_table_with_size(INIT_TAG_NAMES_ALLOC_NUM);
- CHECK_NULL_RETURN_MEMERR(t);
-
- *rt = t;
- return ONIG_NORMAL;
-}
-
-static int
-callout_tag_entry_raw(ScanEnv* env, CalloutTagTable* t, UChar* name,
- UChar* name_end, CalloutTagVal entry_val)
-{
- int r;
- CalloutTagVal val;
-
- if (name_end - name <= 0)
- return ONIGERR_INVALID_CALLOUT_TAG_NAME;
-
- val = callout_tag_find(t, name, name_end);
- if (val >= 0) {
- onig_scan_env_set_error_string(env, ONIGERR_MULTIPLEX_DEFINED_NAME,
- name, name_end);
- return ONIGERR_MULTIPLEX_DEFINED_NAME;
- }
-
- r = onig_st_insert_strend(t, name, name_end, (HashDataType )entry_val);
- if (r < 0) return r;
-
- return ONIG_NORMAL;
-}
-
-static int
-ext_ensure_tag_table(regex_t* reg)
-{
- int r;
- RegexExt* ext;
- CalloutTagTable* t;
-
- ext = onig_get_regex_ext(reg);
- CHECK_NULL_RETURN_MEMERR(ext);
-
- if (IS_NULL(ext->tag_table)) {
- r = callout_tag_table_new(&t);
- if (r != ONIG_NORMAL) return r;
-
- ext->tag_table = t;
- }
-
- return ONIG_NORMAL;
-}
-
-static int
-callout_tag_entry(ScanEnv* env, regex_t* reg, UChar* name, UChar* name_end,
- CalloutTagVal entry_val)
-{
- int r;
- RegexExt* ext;
- CalloutListEntry* e;
-
- r = ext_ensure_tag_table(reg);
- if (r != ONIG_NORMAL) return r;
-
- ext = onig_get_regex_ext(reg);
- CHECK_NULL_RETURN_MEMERR(ext);
- CHECK_NULL_RETURN_MEMERR(ext->tag_table);
- r = callout_tag_entry_raw(env, ext->tag_table, name, name_end, entry_val);
-
- e = onig_reg_callout_list_at(reg, (int )entry_val);
- CHECK_NULL_RETURN_MEMERR(e);
- e->tag_start = name;
- e->tag_end = name_end;
-
- return r;
-}
-
-#endif /* USE_CALLOUT */
-
-
-#define INIT_SCANENV_MEMENV_ALLOC_SIZE 16
-
-static void
-scan_env_clear(ScanEnv* env)
-{
- MEM_STATUS_CLEAR(env->capture_history);
- MEM_STATUS_CLEAR(env->bt_mem_start);
- MEM_STATUS_CLEAR(env->bt_mem_end);
- MEM_STATUS_CLEAR(env->backrefed_mem);
- env->error = (UChar* )NULL;
- env->error_end = (UChar* )NULL;
- env->num_call = 0;
-
-#ifdef USE_CALL
- env->unset_addr_list = NULL;
- env->has_call_zero = 0;
-#endif
-
- env->num_mem = 0;
- env->num_named = 0;
- env->mem_alloc = 0;
- env->mem_env_dynamic = (MemEnv* )NULL;
-
- xmemset(env->mem_env_static, 0, sizeof(env->mem_env_static));
-
- env->parse_depth = 0;
- env->keep_num = 0;
- env->save_num = 0;
- env->save_alloc_num = 0;
- env->saves = 0;
-}
-
-static int
-scan_env_add_mem_entry(ScanEnv* env)
-{
- int i, need, alloc;
- MemEnv* p;
-
- need = env->num_mem + 1;
- if (need > MaxCaptureNum && MaxCaptureNum != 0)
- return ONIGERR_TOO_MANY_CAPTURES;
-
- if (need >= SCANENV_MEMENV_SIZE) {
- if (env->mem_alloc <= need) {
- if (IS_NULL(env->mem_env_dynamic)) {
- alloc = INIT_SCANENV_MEMENV_ALLOC_SIZE;
- p = (MemEnv* )xmalloc(sizeof(MemEnv) * alloc);
- CHECK_NULL_RETURN_MEMERR(p);
- xmemcpy(p, env->mem_env_static, sizeof(env->mem_env_static));
- }
- else {
- alloc = env->mem_alloc * 2;
- p = (MemEnv* )xrealloc(env->mem_env_dynamic, sizeof(MemEnv) * alloc, sizeof(MemEnv)*env->mem_alloc);
- CHECK_NULL_RETURN_MEMERR(p);
- }
-
- for (i = env->num_mem + 1; i < alloc; i++) {
- p[i].node = NULL_NODE;
-#if 0
- p[i].in = 0;
- p[i].recursion = 0;
-#endif
- }
-
- env->mem_env_dynamic = p;
- env->mem_alloc = alloc;
- }
- }
-
- env->num_mem++;
- return env->num_mem;
-}
-
-static int
-scan_env_set_mem_node(ScanEnv* env, int num, Node* node)
-{
- if (env->num_mem >= num)
- SCANENV_MEMENV(env)[num].node = node;
- else
- return ONIGERR_PARSER_BUG;
- return 0;
-}
-
-extern void
-onig_node_free(Node* node)
-{
- start:
- if (IS_NULL(node)) return ;
-
-#ifdef DEBUG_NODE_FREE
- fprintf(stderr, "onig_node_free: %p\n", node);
-#endif
-
- switch (NODE_TYPE(node)) {
- case NODE_STRING:
- if (STR_(node)->capacity != 0 &&
- IS_NOT_NULL(STR_(node)->s) && STR_(node)->s != STR_(node)->buf) {
- xfree(STR_(node)->s);
- }
- break;
-
- case NODE_LIST:
- case NODE_ALT:
- onig_node_free(NODE_CAR(node));
- {
- Node* next_node = NODE_CDR(node);
-
- xfree(node);
- node = next_node;
- goto start;
- }
- break;
-
- case NODE_CCLASS:
- {
- CClassNode* cc = CCLASS_(node);
-
- if (cc->mbuf)
- bbuf_free(cc->mbuf);
- }
- break;
-
- case NODE_BACKREF:
- if (IS_NOT_NULL(BACKREF_(node)->back_dynamic))
- xfree(BACKREF_(node)->back_dynamic);
- break;
-
- case NODE_BAG:
- if (NODE_BODY(node))
- onig_node_free(NODE_BODY(node));
-
- {
- BagNode* en = BAG_(node);
- if (en->type == BAG_IF_ELSE) {
- onig_node_free(en->te.Then);
- onig_node_free(en->te.Else);
- }
- }
- break;
-
- case NODE_QUANT:
- case NODE_ANCHOR:
- if (NODE_BODY(node))
- onig_node_free(NODE_BODY(node));
- break;
-
- case NODE_CTYPE:
- case NODE_CALL:
- case NODE_GIMMICK:
- break;
- }
-
- xfree(node);
-}
-
-static void
-cons_node_free_alone(Node* node)
-{
- NODE_CAR(node) = 0;
- NODE_CDR(node) = 0;
- onig_node_free(node);
-}
-
-static Node*
-node_new(void)
-{
- Node* node;
-
- node = (Node* )xmalloc(sizeof(Node));
- CHECK_NULL_RETURN(node);
- xmemset(node, 0, sizeof(*node));
-
-#ifdef DEBUG_NODE_FREE
- fprintf(stderr, "node_new: %p\n", node);
-#endif
- return node;
-}
-
-
-static void
-initialize_cclass(CClassNode* cc)
-{
- BITSET_CLEAR(cc->bs);
- cc->flags = 0;
- cc->mbuf = NULL;
-}
-
-static Node*
-node_new_cclass(void)
-{
- Node* node = node_new();
- CHECK_NULL_RETURN(node);
-
- NODE_SET_TYPE(node, NODE_CCLASS);
- initialize_cclass(CCLASS_(node));
- return node;
-}
-
-static Node*
-node_new_ctype(int type, int not, OnigOptionType options)
-{
- Node* node = node_new();
- CHECK_NULL_RETURN(node);
-
- NODE_SET_TYPE(node, NODE_CTYPE);
- CTYPE_(node)->ctype = type;
- CTYPE_(node)->not = not;
- CTYPE_(node)->options = options;
- CTYPE_(node)->ascii_mode = IS_ASCII_MODE_CTYPE_OPTION(type, options);
- return node;
-}
-
-static Node*
-node_new_anychar(void)
-{
- Node* node = node_new_ctype(CTYPE_ANYCHAR, 0, ONIG_OPTION_NONE);
- return node;
-}
-
-static Node*
-node_new_anychar_with_fixed_option(OnigOptionType option)
-{
- CtypeNode* ct;
- Node* node;
-
- node = node_new_anychar();
- CHECK_NULL_RETURN(node);
-
- ct = CTYPE_(node);
- ct->options = option;
- NODE_STATUS_ADD(node, FIXED_OPTION);
- return node;
-}
-
-static int
-node_new_no_newline(Node** node, ScanEnv* env)
-{
- Node* n;
-
- n = node_new_anychar_with_fixed_option(ONIG_OPTION_NONE);
- CHECK_NULL_RETURN_MEMERR(n);
- *node = n;
- return 0;
-}
-
-static int
-node_new_true_anychar(Node** node, ScanEnv* env)
-{
- Node* n;
-
- n = node_new_anychar_with_fixed_option(ONIG_OPTION_MULTILINE);
- CHECK_NULL_RETURN_MEMERR(n);
- *node = n;
- return 0;
-}
-
-static Node*
-node_new_list(Node* left, Node* right)
-{
- Node* node = node_new();
- CHECK_NULL_RETURN(node);
-
- NODE_SET_TYPE(node, NODE_LIST);
- NODE_CAR(node) = left;
- NODE_CDR(node) = right;
- return node;
-}
-
-extern Node*
-onig_node_new_list(Node* left, Node* right)
-{
- return node_new_list(left, right);
-}
-
-extern Node*
-onig_node_list_add(Node* list, Node* x)
-{
- Node *n;
-
- n = onig_node_new_list(x, NULL);
- if (IS_NULL(n)) return NULL_NODE;
-
- if (IS_NOT_NULL(list)) {
- while (IS_NOT_NULL(NODE_CDR(list)))
- list = NODE_CDR(list);
-
- NODE_CDR(list) = n;
- }
-
- return n;
-}
-
-extern Node*
-onig_node_new_alt(Node* left, Node* right)
-{
- Node* node = node_new();
- CHECK_NULL_RETURN(node);
-
- NODE_SET_TYPE(node, NODE_ALT);
- NODE_CAR(node) = left;
- NODE_CDR(node) = right;
- return node;
-}
-
-static Node*
-make_list_or_alt(NodeType type, int n, Node* ns[])
-{
- Node* r;
-
- if (n <= 0) return NULL_NODE;
-
- if (n == 1) {
- r = node_new();
- CHECK_NULL_RETURN(r);
- NODE_SET_TYPE(r, type);
- NODE_CAR(r) = ns[0];
- NODE_CDR(r) = NULL_NODE;
- }
- else {
- Node* right;
-
- r = node_new();
- CHECK_NULL_RETURN(r);
-
- right = make_list_or_alt(type, n - 1, ns + 1);
- if (IS_NULL(right)) {
- onig_node_free(r);
- return NULL_NODE;
- }
-
- NODE_SET_TYPE(r, type);
- NODE_CAR(r) = ns[0];
- NODE_CDR(r) = right;
- }
-
- return r;
-}
-
-static Node*
-make_list(int n, Node* ns[])
-{
- return make_list_or_alt(NODE_LIST, n, ns);
-}
-
-static Node*
-make_alt(int n, Node* ns[])
-{
- return make_list_or_alt(NODE_ALT, n, ns);
-}
-
-extern Node*
-onig_node_new_anchor(int type, int ascii_mode)
-{
- Node* node = node_new();
- CHECK_NULL_RETURN(node);
-
- NODE_SET_TYPE(node, NODE_ANCHOR);
- ANCHOR_(node)->type = type;
- ANCHOR_(node)->char_len = -1;
- ANCHOR_(node)->ascii_mode = ascii_mode;
- return node;
-}
-
-static Node*
-node_new_backref(int back_num, int* backrefs, int by_name,
-#ifdef USE_BACKREF_WITH_LEVEL
- int exist_level, int nest_level,
-#endif
- ScanEnv* env)
-{
- int i;
- Node* node = node_new();
-
- CHECK_NULL_RETURN(node);
-
- NODE_SET_TYPE(node, NODE_BACKREF);
- BACKREF_(node)->back_num = back_num;
- BACKREF_(node)->back_dynamic = (int* )NULL;
- if (by_name != 0)
- NODE_STATUS_ADD(node, BY_NAME);
-
-#ifdef USE_BACKREF_WITH_LEVEL
- if (exist_level != 0) {
- NODE_STATUS_ADD(node, NEST_LEVEL);
- BACKREF_(node)->nest_level = nest_level;
- }
-#endif
-
- for (i = 0; i < back_num; i++) {
- if (backrefs[i] <= env->num_mem &&
- IS_NULL(SCANENV_MEMENV(env)[backrefs[i]].node)) {
- NODE_STATUS_ADD(node, RECURSION); /* /...(\1).../ */
- break;
- }
- }
-
- if (back_num <= NODE_BACKREFS_SIZE) {
- for (i = 0; i < back_num; i++)
- BACKREF_(node)->back_static[i] = backrefs[i];
- }
- else {
- int* p = (int* )xmalloc(sizeof(int) * back_num);
- if (IS_NULL(p)) {
- onig_node_free(node);
- return NULL;
- }
- BACKREF_(node)->back_dynamic = p;
- for (i = 0; i < back_num; i++)
- p[i] = backrefs[i];
- }
- return node;
-}
-
-static Node*
-node_new_backref_checker(int back_num, int* backrefs, int by_name,
-#ifdef USE_BACKREF_WITH_LEVEL
- int exist_level, int nest_level,
-#endif
- ScanEnv* env)
-{
- Node* node;
-
- node = node_new_backref(back_num, backrefs, by_name,
-#ifdef USE_BACKREF_WITH_LEVEL
- exist_level, nest_level,
-#endif
- env);
- CHECK_NULL_RETURN(node);
-
- NODE_STATUS_ADD(node, CHECKER);
- return node;
-}
-
-#ifdef USE_CALL
-static Node*
-node_new_call(UChar* name, UChar* name_end, int gnum, int by_number)
-{
- Node* node = node_new();
- CHECK_NULL_RETURN(node);
-
- NODE_SET_TYPE(node, NODE_CALL);
- CALL_(node)->by_number = by_number;
- CALL_(node)->name = name;
- CALL_(node)->name_end = name_end;
- CALL_(node)->group_num = gnum;
- CALL_(node)->entry_count = 1;
- return node;
-}
-#endif
-
-static Node*
-node_new_quantifier(int lower, int upper, int by_number)
-{
- Node* node = node_new();
- CHECK_NULL_RETURN(node);
-
- NODE_SET_TYPE(node, NODE_QUANT);
- QUANT_(node)->lower = lower;
- QUANT_(node)->upper = upper;
- QUANT_(node)->greedy = 1;
- QUANT_(node)->emptiness = BODY_IS_NOT_EMPTY;
- QUANT_(node)->head_exact = NULL_NODE;
- QUANT_(node)->next_head_exact = NULL_NODE;
- QUANT_(node)->is_refered = 0;
- if (by_number != 0)
- NODE_STATUS_ADD(node, BY_NUMBER);
-
- return node;
-}
-
-static Node*
-node_new_bag(enum BagType type)
-{
- Node* node = node_new();
- CHECK_NULL_RETURN(node);
-
- NODE_SET_TYPE(node, NODE_BAG);
- BAG_(node)->type = type;
-
- switch (type) {
- case BAG_MEMORY:
- BAG_(node)->m.regnum = 0;
- BAG_(node)->m.called_addr = -1;
- BAG_(node)->m.entry_count = 1;
- BAG_(node)->m.called_state = 0;
- break;
-
- case BAG_OPTION:
- BAG_(node)->o.options = 0;
- break;
-
- case BAG_STOP_BACKTRACK:
- break;
-
- case BAG_IF_ELSE:
- BAG_(node)->te.Then = 0;
- BAG_(node)->te.Else = 0;
- break;
- }
-
- BAG_(node)->opt_count = 0;
- return node;
-}
-
-extern Node*
-onig_node_new_bag(enum BagType type)
-{
- return node_new_bag(type);
-}
-
-static Node*
-node_new_bag_if_else(Node* cond, Node* Then, Node* Else)
-{
- Node* n;
- n = node_new_bag(BAG_IF_ELSE);
- CHECK_NULL_RETURN(n);
-
- NODE_BODY(n) = cond;
- BAG_(n)->te.Then = Then;
- BAG_(n)->te.Else = Else;
- return n;
-}
-
-static Node*
-node_new_memory(int is_named)
-{
- Node* node = node_new_bag(BAG_MEMORY);
- CHECK_NULL_RETURN(node);
- if (is_named != 0)
- NODE_STATUS_ADD(node, NAMED_GROUP);
-
- return node;
-}
-
-static Node*
-node_new_option(OnigOptionType option)
-{
- Node* node = node_new_bag(BAG_OPTION);
- CHECK_NULL_RETURN(node);
- BAG_(node)->o.options = option;
- return node;
-}
-
-static Node*
-node_new_group(Node* content)
-{
- Node* node;
-
- node = node_new();
- CHECK_NULL_RETURN(node);
- NODE_SET_TYPE(node, NODE_LIST);
- NODE_CAR(node) = content;
- NODE_CDR(node) = NULL_NODE;
-
- return node;
-}
-
-static Node*
-node_drop_group(Node* group)
-{
- Node* content;
-
- content = NODE_CAR(group);
- NODE_CAR(group) = NULL_NODE;
- onig_node_free(group);
- return content;
-}
-
-static int
-node_new_fail(Node** node, ScanEnv* env)
-{
- *node = node_new();
- CHECK_NULL_RETURN_MEMERR(*node);
-
- NODE_SET_TYPE(*node, NODE_GIMMICK);
- GIMMICK_(*node)->type = GIMMICK_FAIL;
- return ONIG_NORMAL;
-}
-
-static int
-node_new_save_gimmick(Node** node, enum SaveType save_type, ScanEnv* env)
-{
- int id;
- int r;
-
- r = save_entry(env, save_type, &id);
- if (r != ONIG_NORMAL) return r;
-
- *node = node_new();
- CHECK_NULL_RETURN_MEMERR(*node);
-
- NODE_SET_TYPE(*node, NODE_GIMMICK);
- GIMMICK_(*node)->id = id;
- GIMMICK_(*node)->type = GIMMICK_SAVE;
- GIMMICK_(*node)->detail_type = (int )save_type;
-
- return ONIG_NORMAL;
-}
-
-static int
-node_new_update_var_gimmick(Node** node, enum UpdateVarType update_var_type,
- int id, ScanEnv* env)
-{
- *node = node_new();
- CHECK_NULL_RETURN_MEMERR(*node);
-
- NODE_SET_TYPE(*node, NODE_GIMMICK);
- GIMMICK_(*node)->id = id;
- GIMMICK_(*node)->type = GIMMICK_UPDATE_VAR;
- GIMMICK_(*node)->detail_type = (int )update_var_type;
-
- return ONIG_NORMAL;
-}
-
-static int
-node_new_keep(Node** node, ScanEnv* env)
-{
- int r;
-
- r = node_new_save_gimmick(node, SAVE_KEEP, env);
- if (r != 0) return r;
-
- env->keep_num++;
- return ONIG_NORMAL;
-}
-
-#ifdef USE_CALLOUT
-
-extern void
-onig_free_reg_callout_list(int n, CalloutListEntry* list)
-{
- int i;
- int j;
-
- if (IS_NULL(list)) return ;
-
- for (i = 0; i < n; i++) {
- if (list[i].of == ONIG_CALLOUT_OF_NAME) {
- for (j = 0; j < list[i].u.arg.passed_num; j++) {
- if (list[i].u.arg.types[j] == ONIG_TYPE_STRING) {
- if (IS_NOT_NULL(list[i].u.arg.vals[j].s.start))
- xfree(list[i].u.arg.vals[j].s.start);
- }
- }
- }
- else { /* ONIG_CALLOUT_OF_CONTENTS */
- if (IS_NOT_NULL(list[i].u.content.start)) {
- xfree((void* )list[i].u.content.start);
- }
- }
- }
-
- xfree(list);
-}
-
-extern CalloutListEntry*
-onig_reg_callout_list_at(regex_t* reg, int num)
-{
- RegexExt* ext = reg->extp;
- CHECK_NULL_RETURN(ext);
-
- if (num <= 0 || num > ext->callout_num)
- return 0;
-
- num--;
- return ext->callout_list + num;
-}
-
-static int
-reg_callout_list_entry(ScanEnv* env, int* rnum)
-{
-#define INIT_CALLOUT_LIST_NUM 3
-
- int num;
- CalloutListEntry* list;
- CalloutListEntry* e;
- RegexExt* ext;
-
- ext = onig_get_regex_ext(env->reg);
- CHECK_NULL_RETURN_MEMERR(ext);
-
- if (IS_NULL(ext->callout_list)) {
- list = (CalloutListEntry* )xmalloc(sizeof(*list) * INIT_CALLOUT_LIST_NUM);
- CHECK_NULL_RETURN_MEMERR(list);
-
- ext->callout_list = list;
- ext->callout_list_alloc = INIT_CALLOUT_LIST_NUM;
- ext->callout_num = 0;
- }
-
- num = ext->callout_num + 1;
- if (num > ext->callout_list_alloc) {
- int alloc = ext->callout_list_alloc * 2;
- list = (CalloutListEntry* )xrealloc(ext->callout_list,
- sizeof(CalloutListEntry) * alloc,
- sizeof(CalloutListEntry) * ext->callout_list_alloc);
- CHECK_NULL_RETURN_MEMERR(list);
-
- ext->callout_list = list;
- ext->callout_list_alloc = alloc;
- }
-
- e = ext->callout_list + (num - 1);
-
- e->flag = 0;
- e->of = 0;
- e->in = ONIG_CALLOUT_OF_CONTENTS;
- e->type = 0;
- e->tag_start = 0;
- e->tag_end = 0;
- e->start_func = 0;
- e->end_func = 0;
- e->u.arg.num = 0;
- e->u.arg.passed_num = 0;
-
- ext->callout_num = num;
- *rnum = num;
- return ONIG_NORMAL;
-}
-
-static int
-node_new_callout(Node** node, OnigCalloutOf callout_of, int num, int id,
- ScanEnv* env)
-{
- *node = node_new();
- CHECK_NULL_RETURN_MEMERR(*node);
-
- NODE_SET_TYPE(*node, NODE_GIMMICK);
- GIMMICK_(*node)->id = id;
- GIMMICK_(*node)->num = num;
- GIMMICK_(*node)->type = GIMMICK_CALLOUT;
- GIMMICK_(*node)->detail_type = (int )callout_of;
-
- return ONIG_NORMAL;
-}
-#endif
-
-static int
-make_text_segment(Node** node, ScanEnv* env)
-{
- int r;
- int i;
- Node* x;
- Node* ns[2];
-
- /* \X == (?>\O(?:\Y\O)*) */
-
- ns[1] = NULL_NODE;
-
- r = ONIGERR_MEMORY;
- ns[0] = onig_node_new_anchor(ANCR_NO_TEXT_SEGMENT_BOUNDARY, 0);
- if (IS_NULL(ns[0])) goto err;
-
- r = node_new_true_anychar(&ns[1], env);
- if (r != 0) goto err1;
-
- x = make_list(2, ns);
- if (IS_NULL(x)) goto err;
- ns[0] = x;
- ns[1] = NULL_NODE;
-
- x = node_new_quantifier(0, INFINITE_REPEAT, 1);
- if (IS_NULL(x)) goto err;
-
- NODE_BODY(x) = ns[0];
- ns[0] = NULL_NODE;
- ns[1] = x;
-
- r = node_new_true_anychar(&ns[0], env);
- if (r != 0) goto err1;
-
- x = make_list(2, ns);
- if (IS_NULL(x)) goto err;
-
- ns[0] = x;
- ns[1] = NULL_NODE;
-
- x = node_new_bag(BAG_STOP_BACKTRACK);
- if (IS_NULL(x)) goto err;
-
- NODE_BODY(x) = ns[0];
-
- *node = x;
- return ONIG_NORMAL;
-
- err:
- r = ONIGERR_MEMORY;
- err1:
- for (i = 0; i < 2; i++) onig_node_free(ns[i]);
- return r;
-}
-
-static int
-make_absent_engine(Node** node, int pre_save_right_id, Node* absent,
- Node* step_one, int lower, int upper, int possessive,
- int is_range_cutter, ScanEnv* env)
-{
- int r;
- int i;
- int id;
- Node* x;
- Node* ns[4];
-
- for (i = 0; i < 4; i++) ns[i] = NULL_NODE;
-
- ns[1] = absent;
- ns[3] = step_one; /* for err */
- r = node_new_save_gimmick(&ns[0], SAVE_S, env);
- if (r != 0) goto err;
-
- id = GIMMICK_(ns[0])->id;
- r = node_new_update_var_gimmick(&ns[2], UPDATE_VAR_RIGHT_RANGE_FROM_S_STACK,
- id, env);
- if (r != 0) goto err;
-
- r = node_new_fail(&ns[3], env);
- if (r != 0) goto err;
-
- x = make_list(4, ns);
- if (IS_NULL(x)) goto err0;
-
- ns[0] = x;
- ns[1] = step_one;
- ns[2] = ns[3] = NULL_NODE;
-
- x = make_alt(2, ns);
- if (IS_NULL(x)) goto err0;
-
- ns[0] = x;
-
- x = node_new_quantifier(lower, upper, 0);
- if (IS_NULL(x)) goto err0;
-
- NODE_BODY(x) = ns[0];
- ns[0] = x;
-
- if (possessive != 0) {
- x = node_new_bag(BAG_STOP_BACKTRACK);
- if (IS_NULL(x)) goto err0;
-
- NODE_BODY(x) = ns[0];
- ns[0] = x;
- }
-
- r = node_new_update_var_gimmick(&ns[1], UPDATE_VAR_RIGHT_RANGE_FROM_STACK,
- pre_save_right_id, env);
- if (r != 0) goto err;
-
- r = node_new_fail(&ns[2], env);
- if (r != 0) goto err;
-
- x = make_list(2, ns + 1);
- if (IS_NULL(x)) goto err0;
-
- ns[1] = x; ns[2] = NULL_NODE;
-
- x = make_alt(2, ns);
- if (IS_NULL(x)) goto err0;
-
- if (is_range_cutter != 0)
- NODE_STATUS_ADD(x, SUPER);
-
- *node = x;
- return ONIG_NORMAL;
-
- err0:
- r = ONIGERR_MEMORY;
- err:
- for (i = 0; i < 4; i++) onig_node_free(ns[i]);
- return r;
-}
-
-static int
-make_absent_tail(Node** node1, Node** node2, int pre_save_right_id,
- ScanEnv* env)
-{
- int r;
- int id;
- Node* save;
- Node* x;
- Node* ns[2];
-
- *node1 = *node2 = NULL_NODE;
- save = ns[0] = ns[1] = NULL_NODE;
-
- r = node_new_save_gimmick(&save, SAVE_RIGHT_RANGE, env);
- if (r != 0) goto err;
-
- id = GIMMICK_(save)->id;
- r = node_new_update_var_gimmick(&ns[0], UPDATE_VAR_RIGHT_RANGE_FROM_STACK,
- id, env);
- if (r != 0) goto err;
-
- r = node_new_fail(&ns[1], env);
- if (r != 0) goto err;
-
- x = make_list(2, ns);
- if (IS_NULL(x)) goto err0;
-
- ns[0] = NULL_NODE; ns[1] = x;
-
- r = node_new_update_var_gimmick(&ns[0], UPDATE_VAR_RIGHT_RANGE_FROM_STACK,
- pre_save_right_id, env);
- if (r != 0) goto err;
-
- x = make_alt(2, ns);
- if (IS_NULL(x)) goto err0;
-
- *node1 = save;
- *node2 = x;
- return ONIG_NORMAL;
-
- err0:
- r = ONIGERR_MEMORY;
- err:
- onig_node_free(save);
- onig_node_free(ns[0]);
- onig_node_free(ns[1]);
- return r;
-}
-
-static int
-make_range_clear(Node** node, ScanEnv* env)
-{
- int r;
- int id;
- Node* save;
- Node* x;
- Node* ns[2];
-
- *node = NULL_NODE;
- save = ns[0] = ns[1] = NULL_NODE;
-
- r = node_new_save_gimmick(&save, SAVE_RIGHT_RANGE, env);
- if (r != 0) goto err;
-
- id = GIMMICK_(save)->id;
- r = node_new_update_var_gimmick(&ns[0], UPDATE_VAR_RIGHT_RANGE_FROM_STACK,
- id, env);
- if (r != 0) goto err;
-
- r = node_new_fail(&ns[1], env);
- if (r != 0) goto err;
-
- x = make_list(2, ns);
- if (IS_NULL(x)) goto err0;
-
- ns[0] = NULL_NODE; ns[1] = x;
-
- r = node_new_update_var_gimmick(&ns[0], UPDATE_VAR_RIGHT_RANGE_INIT, 0, env);
- if (r != 0) goto err;
-
- x = make_alt(2, ns);
- if (IS_NULL(x)) goto err0;
-
- NODE_STATUS_ADD(x, SUPER);
-
- ns[0] = save;
- ns[1] = x;
- save = NULL_NODE;
- x = make_list(2, ns);
- if (IS_NULL(x)) goto err0;
-
- *node = x;
- return ONIG_NORMAL;
-
- err0:
- r = ONIGERR_MEMORY;
- err:
- onig_node_free(save);
- onig_node_free(ns[0]);
- onig_node_free(ns[1]);
- return r;
-}
-
-static int
-is_simple_one_char_repeat(Node* node, Node** rquant, Node** rbody,
- int* is_possessive, ScanEnv* env)
-{
- Node* quant;
- Node* body;
-
- *rquant = *rbody = 0;
- *is_possessive = 0;
-
- if (NODE_TYPE(node) == NODE_QUANT) {
- quant = node;
- }
- else {
- if (NODE_TYPE(node) == NODE_BAG) {
- BagNode* en = BAG_(node);
- if (en->type == BAG_STOP_BACKTRACK) {
- *is_possessive = 1;
- quant = NODE_BAG_BODY(en);
- if (NODE_TYPE(quant) != NODE_QUANT)
- return 0;
- }
- else
- return 0;
- }
- else
- return 0;
- }
-
- if (QUANT_(quant)->greedy == 0)
- return 0;
-
- body = NODE_BODY(quant);
- switch (NODE_TYPE(body)) {
- case NODE_STRING:
- {
- int len;
- StrNode* sn = STR_(body);
- UChar *s = sn->s;
-
- len = 0;
- while (s < sn->end) {
- s += enclen(env->enc, s);
- len++;
- }
- if (len != 1)
- return 0;
- }
-
- case NODE_CCLASS:
- break;
-
- default:
- return 0;
- break;
- }
-
- if (node != quant) {
- NODE_BODY(node) = 0;
- onig_node_free(node);
- }
- NODE_BODY(quant) = NULL_NODE;
- *rquant = quant;
- *rbody = body;
- return 1;
-}
-
-static int
-make_absent_tree_for_simple_one_char_repeat(Node** node, Node* absent, Node* quant,
- Node* body, int possessive, ScanEnv* env)
-{
- int r;
- int i;
- int id1;
- int lower, upper;
- Node* x;
- Node* ns[4];
-
- *node = NULL_NODE;
- r = ONIGERR_MEMORY;
- ns[0] = ns[1] = NULL_NODE;
- ns[2] = body, ns[3] = absent;
-
- lower = QUANT_(quant)->lower;
- upper = QUANT_(quant)->upper;
- onig_node_free(quant);
-
- r = node_new_save_gimmick(&ns[0], SAVE_RIGHT_RANGE, env);
- if (r != 0) goto err;
-
- id1 = GIMMICK_(ns[0])->id;
-
- r = make_absent_engine(&ns[1], id1, absent, body, lower, upper, possessive,
- 0, env);
- if (r != 0) goto err;
-
- ns[2] = ns[3] = NULL_NODE;
-
- r = node_new_update_var_gimmick(&ns[2], UPDATE_VAR_RIGHT_RANGE_FROM_STACK,
- id1, env);
- if (r != 0) goto err;
-
- x = make_list(3, ns);
- if (IS_NULL(x)) goto err0;
-
- *node = x;
- return ONIG_NORMAL;
-
- err0:
- r = ONIGERR_MEMORY;
- err:
- for (i = 0; i < 4; i++) onig_node_free(ns[i]);
- return r;
-}
-
-static int
-make_absent_tree(Node** node, Node* absent, Node* expr, int is_range_cutter,
- ScanEnv* env)
-{
- int r;
- int i;
- int id1, id2;
- int possessive;
- Node* x;
- Node* ns[7];
-
- r = ONIGERR_MEMORY;
- for (i = 0; i < 7; i++) ns[i] = NULL_NODE;
- ns[4] = expr; ns[5] = absent;
-
- if (is_range_cutter == 0) {
- Node* quant;
- Node* body;
-
- if (expr == NULL_NODE) {
- /* default expr \O* */
- quant = node_new_quantifier(0, INFINITE_REPEAT, 0);
- if (IS_NULL(quant)) goto err0;
-
- r = node_new_true_anychar(&body, env);
- if (r != 0) {
- onig_node_free(quant);
- goto err;
- }
- possessive = 0;
- goto simple;
- }
- else {
- if (is_simple_one_char_repeat(expr, &quant, &body, &possessive, env)) {
- simple:
- r = make_absent_tree_for_simple_one_char_repeat(node, absent, quant,
- body, possessive, env);
- if (r != 0) {
- ns[4] = NULL_NODE;
- onig_node_free(quant);
- onig_node_free(body);
- goto err;
- }
-
- return ONIG_NORMAL;
- }
- }
- }
-
- r = node_new_save_gimmick(&ns[0], SAVE_RIGHT_RANGE, env);
- if (r != 0) goto err;
-
- id1 = GIMMICK_(ns[0])->id;
-
- r = node_new_save_gimmick(&ns[1], SAVE_S, env);
- if (r != 0) goto err;
-
- id2 = GIMMICK_(ns[1])->id;
-
- r = node_new_true_anychar(&ns[3], env);
- if (r != 0) goto err;
-
- possessive = 1;
- r = make_absent_engine(&ns[2], id1, absent, ns[3], 0, INFINITE_REPEAT,
- possessive, is_range_cutter, env);
- if (r != 0) goto err;
-
- ns[3] = NULL_NODE;
- ns[5] = NULL_NODE;
-
- r = node_new_update_var_gimmick(&ns[3], UPDATE_VAR_S_FROM_STACK, id2, env);
- if (r != 0) goto err;
-
- if (is_range_cutter != 0) {
- x = make_list(4, ns);
- if (IS_NULL(x)) goto err0;
- }
- else {
- r = make_absent_tail(&ns[5], &ns[6], id1, env);
- if (r != 0) goto err;
-
- x = make_list(7, ns);
- if (IS_NULL(x)) goto err0;
- }
-
- *node = x;
- return ONIG_NORMAL;
-
- err0:
- r = ONIGERR_MEMORY;
- err:
- for (i = 0; i < 7; i++) onig_node_free(ns[i]);
- return r;
-}
-
-extern int
-onig_node_str_cat(Node* node, const UChar* s, const UChar* end)
-{
- int addlen = (int )(end - s);
-
- if (addlen > 0) {
- int len = (int )(STR_(node)->end - STR_(node)->s);
-
- if (STR_(node)->capacity > 0 || (len + addlen > NODE_STRING_BUF_SIZE - 1)) {
- UChar* p;
- int capa = len + addlen + NODE_STRING_MARGIN;
-
- if (capa <= STR_(node)->capacity) {
- onig_strcpy(STR_(node)->s + len, s, end);
- }
- else {
- if (STR_(node)->s == STR_(node)->buf)
- p = strcat_capa_from_static(STR_(node)->s, STR_(node)->end,
- s, end, capa);
- else
- p = strcat_capa(STR_(node)->s, STR_(node)->end, s, end, capa, STR_(node)->capacity);
-
- CHECK_NULL_RETURN_MEMERR(p);
- STR_(node)->s = p;
- STR_(node)->capacity = capa;
- }
- }
- else {
- onig_strcpy(STR_(node)->s + len, s, end);
- }
- STR_(node)->end = STR_(node)->s + len + addlen;
- }
-
- return 0;
-}
-
-extern int
-onig_node_str_set(Node* node, const UChar* s, const UChar* end)
-{
- onig_node_str_clear(node);
- return onig_node_str_cat(node, s, end);
-}
-
-static int
-node_str_cat_char(Node* node, UChar c)
-{
- UChar s[1];
-
- s[0] = c;
- return onig_node_str_cat(node, s, s + 1);
-}
-
-extern void
-onig_node_conv_to_str_node(Node* node, int flag)
-{
- NODE_SET_TYPE(node, NODE_STRING);
- STR_(node)->flag = flag;
- STR_(node)->capacity = 0;
- STR_(node)->s = STR_(node)->buf;
- STR_(node)->end = STR_(node)->buf;
-}
-
-extern void
-onig_node_str_clear(Node* node)
-{
- if (STR_(node)->capacity != 0 &&
- IS_NOT_NULL(STR_(node)->s) && STR_(node)->s != STR_(node)->buf) {
- xfree(STR_(node)->s);
- }
-
- STR_(node)->capacity = 0;
- STR_(node)->flag = 0;
- STR_(node)->s = STR_(node)->buf;
- STR_(node)->end = STR_(node)->buf;
-}
-
-static Node*
-node_new_str(const UChar* s, const UChar* end)
-{
- Node* node = node_new();
- CHECK_NULL_RETURN(node);
-
- NODE_SET_TYPE(node, NODE_STRING);
- STR_(node)->capacity = 0;
- STR_(node)->flag = 0;
- STR_(node)->s = STR_(node)->buf;
- STR_(node)->end = STR_(node)->buf;
- if (onig_node_str_cat(node, s, end)) {
- onig_node_free(node);
- return NULL;
- }
- return node;
-}
-
-extern Node*
-onig_node_new_str(const UChar* s, const UChar* end)
-{
- return node_new_str(s, end);
-}
-
-static Node*
-node_new_str_raw(UChar* s, UChar* end)
-{
- Node* node = node_new_str(s, end);
- CHECK_NULL_RETURN(node);
- NODE_STRING_SET_RAW(node);
- return node;
-}
-
-static Node*
-node_new_empty(void)
-{
- return node_new_str(NULL, NULL);
-}
-
-static Node*
-node_new_str_raw_char(UChar c)
-{
- int i;
- UChar p[1];
- Node* node;
-
- p[0] = c;
- node = node_new_str_raw(p, p + 1);
- CHECK_NULL_RETURN(node);
-
- /* clear buf tail */
- for (i = 1; i < NODE_STRING_BUF_SIZE; i++)
- STR_(node)->buf[i] = '\0';
-
- return node;
-}
-
-static Node*
-str_node_split_last_char(Node* node, OnigEncoding enc)
-{
- const UChar *p;
- Node* rn;
- StrNode* sn;
-
- sn = STR_(node);
- rn = NULL_NODE;
- if (sn->end > sn->s) {
- p = onigenc_get_prev_char_head(enc, sn->s, sn->end);
- if (p && p > sn->s) { /* can be split. */
- rn = node_new_str(p, sn->end);
- CHECK_NULL_RETURN(rn);
- if (NODE_STRING_IS_RAW(node))
- NODE_STRING_SET_RAW(rn);
-
- sn->end = (UChar* )p;
- }
- }
- return rn;
-}
-
-static int
-str_node_can_be_split(Node* node, OnigEncoding enc)
-{
- StrNode* sn = STR_(node);
- if (sn->end > sn->s) {
- return ((enclen(enc, sn->s) < sn->end - sn->s) ? 1 : 0);
- }
- return 0;
-}
-
-extern int
-onig_scan_unsigned_number(UChar** src, const UChar* end, OnigEncoding enc)
-{
- unsigned int num, val;
- OnigCodePoint c;
- UChar* p = *src;
- PFETCH_READY;
-
- num = 0;
- while (! PEND) {
- PFETCH(c);
- if (IS_CODE_DIGIT_ASCII(enc, c)) {
- val = (unsigned int )DIGITVAL(c);
- if ((INT_MAX_LIMIT - val) / 10UL < num)
- return -1; /* overflow */
-
- num = num * 10 + val;
- }
- else {
- PUNFETCH;
- break;
- }
- }
- *src = p;
- return num;
-}
-
-static int
-scan_unsigned_hexadecimal_number(UChar** src, UChar* end, int minlen,
- int maxlen, OnigEncoding enc)
-{
- OnigCodePoint c;
- unsigned int num, val;
- int n;
- UChar* p = *src;
- PFETCH_READY;
-
- num = 0;
- n = 0;
- while (! PEND && n < maxlen) {
- PFETCH(c);
- if (IS_CODE_XDIGIT_ASCII(enc, c)) {
- n++;
- val = (unsigned int )XDIGITVAL(enc,c);
- if ((INT_MAX_LIMIT - val) / 16UL < num)
- return ONIGERR_TOO_BIG_NUMBER; /* overflow */
-
- num = (num << 4) + XDIGITVAL(enc,c);
- }
- else {
- PUNFETCH;
- break;
- }
- }
-
- if (n < minlen)
- return ONIGERR_INVALID_CODE_POINT_VALUE;
-
- *src = p;
- return num;
-}
-
-static int
-scan_unsigned_octal_number(UChar** src, UChar* end, int maxlen,
- OnigEncoding enc)
-{
- OnigCodePoint c;
- unsigned int num, val;
- UChar* p = *src;
- PFETCH_READY;
-
- num = 0;
- while (! PEND && maxlen-- != 0) {
- PFETCH(c);
- if (IS_CODE_DIGIT_ASCII(enc, c) && c < '8') {
- val = ODIGITVAL(c);
- if ((INT_MAX_LIMIT - val) / 8UL < num)
- return -1; /* overflow */
-
- num = (num << 3) + val;
- }
- else {
- PUNFETCH;
- break;
- }
- }
- *src = p;
- return num;
-}
-
-
-#define BB_WRITE_CODE_POINT(bbuf,pos,code) \
- BB_WRITE(bbuf, pos, &(code), SIZE_CODE_POINT)
-
-/* data format:
- [n][from-1][to-1][from-2][to-2] ... [from-n][to-n]
- (all data size is OnigCodePoint)
- */
-static int
-new_code_range(BBuf** pbuf)
-{
-#define INIT_MULTI_BYTE_RANGE_SIZE (SIZE_CODE_POINT * 5)
- int r;
- OnigCodePoint n;
- BBuf* bbuf;
-
- bbuf = *pbuf = (BBuf* )xmalloc(sizeof(BBuf));
- CHECK_NULL_RETURN_MEMERR(bbuf);
- r = BB_INIT(bbuf, INIT_MULTI_BYTE_RANGE_SIZE);
- if (r != 0) {
- xfree(bbuf);
- *pbuf = 0;
- return r;
- }
-
- n = 0;
- BB_WRITE_CODE_POINT(bbuf, 0, n);
- return 0;
-}
-
-static int
-add_code_range_to_buf(BBuf** pbuf, OnigCodePoint from, OnigCodePoint to)
-{
- int r, inc_n, pos;
- int low, high, bound, x;
- OnigCodePoint n, *data;
- BBuf* bbuf;
-
- if (from > to) {
- n = from; from = to; to = n;
- }
-
- if (IS_NULL(*pbuf)) {
- r = new_code_range(pbuf);
- if (r != 0) return r;
- bbuf = *pbuf;
- n = 0;
- }
- else {
- bbuf = *pbuf;
- GET_CODE_POINT(n, bbuf->p);
- }
- data = (OnigCodePoint* )(bbuf->p);
- data++;
-
- for (low = 0, bound = n; low < bound; ) {
- x = (low + bound) >> 1;
- if (from > data[x*2 + 1])
- low = x + 1;
- else
- bound = x;
- }
-
- high = (to == ~((OnigCodePoint )0)) ? n : low;
- for (bound = n; high < bound; ) {
- x = (high + bound) >> 1;
- if (to + 1 >= data[x*2])
- high = x + 1;
- else
- bound = x;
- }
-
- inc_n = low + 1 - high;
- if (n + inc_n > ONIG_MAX_MULTI_BYTE_RANGES_NUM)
- return ONIGERR_TOO_MANY_MULTI_BYTE_RANGES;
-
- if (inc_n != 1) {
- if (from > data[low*2])
- from = data[low*2];
- if (to < data[(high - 1)*2 + 1])
- to = data[(high - 1)*2 + 1];
- }
-
- if (inc_n != 0 && (OnigCodePoint )high < n) {
- int from_pos = SIZE_CODE_POINT * (1 + high * 2);
- int to_pos = SIZE_CODE_POINT * (1 + (low + 1) * 2);
- int size = (n - high) * 2 * SIZE_CODE_POINT;
-
- if (inc_n > 0) {
- BB_MOVE_RIGHT(bbuf, from_pos, to_pos, size);
- }
- else {
- BB_MOVE_LEFT_REDUCE(bbuf, from_pos, to_pos);
- }
- }
-
- pos = SIZE_CODE_POINT * (1 + low * 2);
- BB_ENSURE_SIZE(bbuf, pos + SIZE_CODE_POINT * 2);
- BB_WRITE_CODE_POINT(bbuf, pos, from);
- BB_WRITE_CODE_POINT(bbuf, pos + SIZE_CODE_POINT, to);
- n += inc_n;
- BB_WRITE_CODE_POINT(bbuf, 0, n);
-
- return 0;
-}
-
-static int
-add_code_range(BBuf** pbuf, ScanEnv* env, OnigCodePoint from, OnigCodePoint to)
-{
- if (from > to) {
- if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_EMPTY_RANGE_IN_CC))
- return 0;
- else
- return ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS;
- }
-
- return add_code_range_to_buf(pbuf, from, to);
-}
-
-static int
-not_code_range_buf(OnigEncoding enc, BBuf* bbuf, BBuf** pbuf)
-{
- int r, i, n;
- OnigCodePoint pre, from, *data, to = 0;
-
- *pbuf = (BBuf* )NULL;
- if (IS_NULL(bbuf)) {
- set_all:
- return SET_ALL_MULTI_BYTE_RANGE(enc, pbuf);
- }
-
- data = (OnigCodePoint* )(bbuf->p);
- GET_CODE_POINT(n, data);
- data++;
- if (n <= 0) goto set_all;
-
- r = 0;
- pre = MBCODE_START_POS(enc);
- for (i = 0; i < n; i++) {
- from = data[i*2];
- to = data[i*2+1];
- if (pre <= from - 1) {
- r = add_code_range_to_buf(pbuf, pre, from - 1);
- if (r != 0) return r;
- }
- if (to == ~((OnigCodePoint )0)) break;
- pre = to + 1;
- }
- if (to < ~((OnigCodePoint )0)) {
- r = add_code_range_to_buf(pbuf, to + 1, ~((OnigCodePoint )0));
- }
- return r;
-}
-
-#define SWAP_BB_NOT(bbuf1, not1, bbuf2, not2) do {\
- BBuf *tbuf; \
- int tnot; \
- tnot = not1; not1 = not2; not2 = tnot; \
- tbuf = bbuf1; bbuf1 = bbuf2; bbuf2 = tbuf; \
-} while (0)
-
-static int
-or_code_range_buf(OnigEncoding enc, BBuf* bbuf1, int not1,
- BBuf* bbuf2, int not2, BBuf** pbuf)
-{
- int r;
- OnigCodePoint i, n1, *data1;
- OnigCodePoint from, to;
-
- *pbuf = (BBuf* )NULL;
- if (IS_NULL(bbuf1) && IS_NULL(bbuf2)) {
- if (not1 != 0 || not2 != 0)
- return SET_ALL_MULTI_BYTE_RANGE(enc, pbuf);
- return 0;
- }
-
- r = 0;
- if (IS_NULL(bbuf2))
- SWAP_BB_NOT(bbuf1, not1, bbuf2, not2);
-
- if (IS_NULL(bbuf1)) {
- if (not1 != 0) {
- return SET_ALL_MULTI_BYTE_RANGE(enc, pbuf);
- }
- else {
- if (not2 == 0) {
- return bbuf_clone(pbuf, bbuf2);
- }
- else {
- return not_code_range_buf(enc, bbuf2, pbuf);
- }
- }
- }
-
- if (not1 != 0)
- SWAP_BB_NOT(bbuf1, not1, bbuf2, not2);
-
- data1 = (OnigCodePoint* )(bbuf1->p);
- GET_CODE_POINT(n1, data1);
- data1++;
-
- if (not2 == 0 && not1 == 0) { /* 1 OR 2 */
- r = bbuf_clone(pbuf, bbuf2);
- }
- else if (not1 == 0) { /* 1 OR (not 2) */
- r = not_code_range_buf(enc, bbuf2, pbuf);
- }
- if (r != 0) return r;
-
- for (i = 0; i < n1; i++) {
- from = data1[i*2];
- to = data1[i*2+1];
- r = add_code_range_to_buf(pbuf, from, to);
- if (r != 0) return r;
- }
- return 0;
-}
-
-static int
-and_code_range1(BBuf** pbuf, OnigCodePoint from1, OnigCodePoint to1,
- OnigCodePoint* data, int n)
-{
- int i, r;
- OnigCodePoint from2, to2;
-
- for (i = 0; i < n; i++) {
- from2 = data[i*2];
- to2 = data[i*2+1];
- if (from2 < from1) {
- if (to2 < from1) continue;
- else {
- from1 = to2 + 1;
- }
- }
- else if (from2 <= to1) {
- if (to2 < to1) {
- if (from1 <= from2 - 1) {
- r = add_code_range_to_buf(pbuf, from1, from2-1);
- if (r != 0) return r;
- }
- from1 = to2 + 1;
- }
- else {
- to1 = from2 - 1;
- }
- }
- else {
- from1 = from2;
- }
- if (from1 > to1) break;
- }
- if (from1 <= to1) {
- r = add_code_range_to_buf(pbuf, from1, to1);
- if (r != 0) return r;
- }
- return 0;
-}
-
-static int
-and_code_range_buf(BBuf* bbuf1, int not1, BBuf* bbuf2, int not2, BBuf** pbuf)
-{
- int r;
- OnigCodePoint i, j, n1, n2, *data1, *data2;
- OnigCodePoint from, to, from1, to1, from2, to2;
-
- *pbuf = (BBuf* )NULL;
- if (IS_NULL(bbuf1)) {
- if (not1 != 0 && IS_NOT_NULL(bbuf2)) /* not1 != 0 -> not2 == 0 */
- return bbuf_clone(pbuf, bbuf2);
- return 0;
- }
- else if (IS_NULL(bbuf2)) {
- if (not2 != 0)
- return bbuf_clone(pbuf, bbuf1);
- return 0;
- }
-
- if (not1 != 0)
- SWAP_BB_NOT(bbuf1, not1, bbuf2, not2);
-
- data1 = (OnigCodePoint* )(bbuf1->p);
- data2 = (OnigCodePoint* )(bbuf2->p);
- GET_CODE_POINT(n1, data1);
- GET_CODE_POINT(n2, data2);
- data1++;
- data2++;
-
- if (not2 == 0 && not1 == 0) { /* 1 AND 2 */
- for (i = 0; i < n1; i++) {
- from1 = data1[i*2];
- to1 = data1[i*2+1];
- for (j = 0; j < n2; j++) {
- from2 = data2[j*2];
- to2 = data2[j*2+1];
- if (from2 > to1) break;
- if (to2 < from1) continue;
- from = MAX(from1, from2);
- to = MIN(to1, to2);
- r = add_code_range_to_buf(pbuf, from, to);
- if (r != 0) return r;
- }
- }
- }
- else if (not1 == 0) { /* 1 AND (not 2) */
- for (i = 0; i < n1; i++) {
- from1 = data1[i*2];
- to1 = data1[i*2+1];
- r = and_code_range1(pbuf, from1, to1, data2, n2);
- if (r != 0) return r;
- }
- }
-
- return 0;
-}
-
-static int
-and_cclass(CClassNode* dest, CClassNode* cc, OnigEncoding enc)
-{
- int r, not1, not2;
- BBuf *buf1, *buf2, *pbuf;
- BitSetRef bsr1, bsr2;
- BitSet bs1, bs2;
-
- not1 = IS_NCCLASS_NOT(dest);
- bsr1 = dest->bs;
- buf1 = dest->mbuf;
- not2 = IS_NCCLASS_NOT(cc);
- bsr2 = cc->bs;
- buf2 = cc->mbuf;
-
- if (not1 != 0) {
- bitset_invert_to(bsr1, bs1);
- bsr1 = bs1;
- }
- if (not2 != 0) {
- bitset_invert_to(bsr2, bs2);
- bsr2 = bs2;
- }
- bitset_and(bsr1, bsr2);
- if (bsr1 != dest->bs) {
- bitset_copy(dest->bs, bsr1);
- }
- if (not1 != 0) {
- bitset_invert(dest->bs);
- }
-
- if (! ONIGENC_IS_SINGLEBYTE(enc)) {
- if (not1 != 0 && not2 != 0) {
- r = or_code_range_buf(enc, buf1, 0, buf2, 0, &pbuf);
- }
- else {
- r = and_code_range_buf(buf1, not1, buf2, not2, &pbuf);
- if (r == 0 && not1 != 0) {
- BBuf *tbuf;
- r = not_code_range_buf(enc, pbuf, &tbuf);
- if (r != 0) {
- bbuf_free(pbuf);
- return r;
- }
- bbuf_free(pbuf);
- pbuf = tbuf;
- }
- }
- if (r != 0) return r;
-
- dest->mbuf = pbuf;
- bbuf_free(buf1);
- return r;
- }
- return 0;
-}
-
-static int
-or_cclass(CClassNode* dest, CClassNode* cc, OnigEncoding enc)
-{
- int r, not1, not2;
- BBuf *buf1, *buf2, *pbuf;
- BitSetRef bsr1, bsr2;
- BitSet bs1, bs2;
-
- not1 = IS_NCCLASS_NOT(dest);
- bsr1 = dest->bs;
- buf1 = dest->mbuf;
- not2 = IS_NCCLASS_NOT(cc);
- bsr2 = cc->bs;
- buf2 = cc->mbuf;
-
- if (not1 != 0) {
- bitset_invert_to(bsr1, bs1);
- bsr1 = bs1;
- }
- if (not2 != 0) {
- bitset_invert_to(bsr2, bs2);
- bsr2 = bs2;
- }
- bitset_or(bsr1, bsr2);
- if (bsr1 != dest->bs) {
- bitset_copy(dest->bs, bsr1);
- }
- if (not1 != 0) {
- bitset_invert(dest->bs);
- }
-
- if (! ONIGENC_IS_SINGLEBYTE(enc)) {
- if (not1 != 0 && not2 != 0) {
- r = and_code_range_buf(buf1, 0, buf2, 0, &pbuf);
- }
- else {
- r = or_code_range_buf(enc, buf1, not1, buf2, not2, &pbuf);
- if (r == 0 && not1 != 0) {
- BBuf *tbuf;
- r = not_code_range_buf(enc, pbuf, &tbuf);
- if (r != 0) {
- bbuf_free(pbuf);
- return r;
- }
- bbuf_free(pbuf);
- pbuf = tbuf;
- }
- }
- if (r != 0) return r;
-
- dest->mbuf = pbuf;
- bbuf_free(buf1);
- return r;
- }
- else
- return 0;
-}
-
-static OnigCodePoint
-conv_backslash_value(OnigCodePoint c, ScanEnv* env)
-{
- if (IS_SYNTAX_OP(env->syntax, ONIG_SYN_OP_ESC_CONTROL_CHARS)) {
- switch (c) {
- case 'n': return '\n';
- case 't': return '\t';
- case 'r': return '\r';
- case 'f': return '\f';
- case 'a': return '\007';
- case 'b': return '\010';
- case 'e': return '\033';
- case 'v':
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ESC_V_VTAB))
- return '\v';
- break;
-
- default:
- break;
- }
- }
- return c;
-}
-
-static int
-is_invalid_quantifier_target(Node* node)
-{
- switch (NODE_TYPE(node)) {
- case NODE_ANCHOR:
- case NODE_GIMMICK:
- return 1;
- break;
-
- case NODE_BAG:
- /* allow enclosed elements */
- /* return is_invalid_quantifier_target(NODE_BODY(node)); */
- break;
-
- case NODE_LIST:
- do {
- if (! is_invalid_quantifier_target(NODE_CAR(node))) return 0;
- } while (IS_NOT_NULL(node = NODE_CDR(node)));
- return 0;
- break;
-
- case NODE_ALT:
- do {
- if (is_invalid_quantifier_target(NODE_CAR(node))) return 1;
- } while (IS_NOT_NULL(node = NODE_CDR(node)));
- break;
-
- default:
- break;
- }
- return 0;
-}
-
-/* ?:0, *:1, +:2, ??:3, *?:4, +?:5 */
-static int
-quantifier_type_num(QuantNode* q)
-{
- if (q->greedy) {
- if (q->lower == 0) {
- if (q->upper == 1) return 0;
- else if (IS_INFINITE_REPEAT(q->upper)) return 1;
- }
- else if (q->lower == 1) {
- if (IS_INFINITE_REPEAT(q->upper)) return 2;
- }
- }
- else {
- if (q->lower == 0) {
- if (q->upper == 1) return 3;
- else if (IS_INFINITE_REPEAT(q->upper)) return 4;
- }
- else if (q->lower == 1) {
- if (IS_INFINITE_REPEAT(q->upper)) return 5;
- }
- }
- return -1;
-}
-
-
-enum ReduceType {
- RQ_ASIS = 0, /* as is */
- RQ_DEL = 1, /* delete parent */
- RQ_A, /* to '*' */
- RQ_AQ, /* to '*?' */
- RQ_QQ, /* to '??' */
- RQ_P_QQ, /* to '+)??' */
- RQ_PQ_Q /* to '+?)?' */
-};
-
-static enum ReduceType ReduceTypeTable[6][6] = {
- {RQ_DEL, RQ_A, RQ_A, RQ_QQ, RQ_AQ, RQ_ASIS}, /* '?' */
- {RQ_DEL, RQ_DEL, RQ_DEL, RQ_P_QQ, RQ_P_QQ, RQ_DEL}, /* '*' */
- {RQ_A, RQ_A, RQ_DEL, RQ_ASIS, RQ_P_QQ, RQ_DEL}, /* '+' */
- {RQ_DEL, RQ_AQ, RQ_AQ, RQ_DEL, RQ_AQ, RQ_AQ}, /* '??' */
- {RQ_DEL, RQ_DEL, RQ_DEL, RQ_DEL, RQ_DEL, RQ_DEL}, /* '*?' */
- {RQ_ASIS, RQ_PQ_Q, RQ_DEL, RQ_AQ, RQ_AQ, RQ_DEL} /* '+?' */
-};
-
-extern void
-onig_reduce_nested_quantifier(Node* pnode, Node* cnode)
-{
- int pnum, cnum;
- QuantNode *p, *c;
-
- p = QUANT_(pnode);
- c = QUANT_(cnode);
- pnum = quantifier_type_num(p);
- cnum = quantifier_type_num(c);
- if (pnum < 0 || cnum < 0) {
- if ((p->lower == p->upper) && ! IS_INFINITE_REPEAT(p->upper)) {
- if ((c->lower == c->upper) && ! IS_INFINITE_REPEAT(c->upper)) {
- int n = onig_positive_int_multiply(p->lower, c->lower);
- if (n >= 0) {
- p->lower = p->upper = n;
- NODE_BODY(pnode) = NODE_BODY(cnode);
- goto remove_cnode;
- }
- }
- }
-
- return ;
- }
-
- switch(ReduceTypeTable[cnum][pnum]) {
- case RQ_DEL:
- *pnode = *cnode;
- break;
- case RQ_A:
- NODE_BODY(pnode) = NODE_BODY(cnode);
- p->lower = 0; p->upper = INFINITE_REPEAT; p->greedy = 1;
- break;
- case RQ_AQ:
- NODE_BODY(pnode) = NODE_BODY(cnode);
- p->lower = 0; p->upper = INFINITE_REPEAT; p->greedy = 0;
- break;
- case RQ_QQ:
- NODE_BODY(pnode) = NODE_BODY(cnode);
- p->lower = 0; p->upper = 1; p->greedy = 0;
- break;
- case RQ_P_QQ:
- NODE_BODY(pnode) = cnode;
- p->lower = 0; p->upper = 1; p->greedy = 0;
- c->lower = 1; c->upper = INFINITE_REPEAT; c->greedy = 1;
- return ;
- break;
- case RQ_PQ_Q:
- NODE_BODY(pnode) = cnode;
- p->lower = 0; p->upper = 1; p->greedy = 1;
- c->lower = 1; c->upper = INFINITE_REPEAT; c->greedy = 0;
- return ;
- break;
- case RQ_ASIS:
- NODE_BODY(pnode) = cnode;
- return ;
- break;
- }
-
- remove_cnode:
- NODE_BODY(cnode) = NULL_NODE;
- onig_node_free(cnode);
-}
-
-static int
-node_new_general_newline(Node** node, ScanEnv* env)
-{
- int r;
- int dlen, alen;
- UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN * 2];
- Node* crnl;
- Node* ncc;
- Node* x;
- CClassNode* cc;
-
- dlen = ONIGENC_CODE_TO_MBC(env->enc, 0x0d, buf);
- if (dlen < 0) return dlen;
- alen = ONIGENC_CODE_TO_MBC(env->enc, 0x0a, buf + dlen);
- if (alen < 0) return alen;
-
- crnl = node_new_str_raw(buf, buf + dlen + alen);
- CHECK_NULL_RETURN_MEMERR(crnl);
-
- ncc = node_new_cclass();
- if (IS_NULL(ncc)) goto err2;
-
- cc = CCLASS_(ncc);
- if (dlen == 1) {
- bitset_set_range(cc->bs, 0x0a, 0x0d);
- }
- else {
- r = add_code_range(&(cc->mbuf), env, 0x0a, 0x0d);
- if (r != 0) {
- err1:
- onig_node_free(ncc);
- err2:
- onig_node_free(crnl);
- return ONIGERR_MEMORY;
- }
- }
-
- if (ONIGENC_IS_UNICODE_ENCODING(env->enc)) {
- r = add_code_range(&(cc->mbuf), env, 0x85, 0x85);
- if (r != 0) goto err1;
- r = add_code_range(&(cc->mbuf), env, 0x2028, 0x2029);
- if (r != 0) goto err1;
- }
-
- x = node_new_bag_if_else(crnl, 0, ncc);
- if (IS_NULL(x)) goto err1;
-
- *node = x;
- return 0;
-}
-
-enum TokenSyms {
- TK_EOT = 0, /* end of token */
- TK_RAW_BYTE = 1,
- TK_CHAR,
- TK_STRING,
- TK_CODE_POINT,
- TK_ANYCHAR,
- TK_CHAR_TYPE,
- TK_BACKREF,
- TK_CALL,
- TK_ANCHOR,
- TK_REPEAT,
- TK_INTERVAL,
- TK_ANYCHAR_ANYTIME, /* SQL '%' == .* */
- TK_ALT,
- TK_SUBEXP_OPEN,
- TK_SUBEXP_CLOSE,
- TK_CC_OPEN,
- TK_QUOTE_OPEN,
- TK_CHAR_PROPERTY, /* \p{...}, \P{...} */
- TK_KEEP, /* \K */
- TK_GENERAL_NEWLINE, /* \R */
- TK_NO_NEWLINE, /* \N */
- TK_TRUE_ANYCHAR, /* \O */
- TK_TEXT_SEGMENT, /* \X */
-
- /* in cc */
- TK_CC_CLOSE,
- TK_CC_RANGE,
- TK_POSIX_BRACKET_OPEN,
- TK_CC_AND, /* && */
- TK_CC_CC_OPEN /* [ */
-};
-
-typedef struct {
- enum TokenSyms type;
- int escaped;
- int base; /* is number: 8, 16 (used in [....]) */
- UChar* backp;
- union {
- UChar* s;
- int c;
- OnigCodePoint code;
- int anchor;
- int subtype;
- struct {
- int lower;
- int upper;
- int greedy;
- int possessive;
- } repeat;
- struct {
- int num;
- int ref1;
- int* refs;
- int by_name;
-#ifdef USE_BACKREF_WITH_LEVEL
- int exist_level;
- int level; /* \k<name+n> */
-#endif
- } backref;
- struct {
- UChar* name;
- UChar* name_end;
- int gnum;
- int by_number;
- } call;
- struct {
- int ctype;
- int not;
- } prop;
- } u;
-} PToken;
-
-
-static int
-fetch_interval_quantifier(UChar** src, UChar* end, PToken* tok, ScanEnv* env)
-{
- int low, up, syn_allow, non_low = 0;
- int r = 0;
- OnigCodePoint c;
- OnigEncoding enc = env->enc;
- UChar* p = *src;
- PFETCH_READY;
-
- syn_allow = IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_INVALID_INTERVAL);
-
- if (PEND) {
- if (syn_allow)
- return 1; /* "....{" : OK! */
- else
- return ONIGERR_END_PATTERN_AT_LEFT_BRACE; /* "....{" syntax error */
- }
-
- if (! syn_allow) {
- c = PPEEK;
- if (c == ')' || c == '(' || c == '|') {
- return ONIGERR_END_PATTERN_AT_LEFT_BRACE;
- }
- }
-
- low = onig_scan_unsigned_number(&p, end, env->enc);
- if (low < 0) return ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE;
- if (low > ONIG_MAX_REPEAT_NUM)
- return ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE;
-
- if (p == *src) { /* can't read low */
- if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_INTERVAL_LOW_ABBREV)) {
- /* allow {,n} as {0,n} */
- low = 0;
- non_low = 1;
- }
- else
- goto invalid;
- }
-
- if (PEND) goto invalid;
- PFETCH(c);
- if (c == ',') {
- UChar* prev = p;
- up = onig_scan_unsigned_number(&p, end, env->enc);
- if (up < 0) return ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE;
- if (up > ONIG_MAX_REPEAT_NUM)
- return ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE;
-
- if (p == prev) {
- if (non_low != 0)
- goto invalid;
- up = INFINITE_REPEAT; /* {n,} : {n,infinite} */
- }
- }
- else {
- if (non_low != 0)
- goto invalid;
-
- PUNFETCH;
- up = low; /* {n} : exact n times */
- r = 2; /* fixed */
- }
-
- if (PEND) goto invalid;
- PFETCH(c);
- if (IS_SYNTAX_OP(env->syntax, ONIG_SYN_OP_ESC_BRACE_INTERVAL)) {
- if (c != MC_ESC(env->syntax)) goto invalid;
- PFETCH(c);
- }
- if (c != '}') goto invalid;
-
- if (!IS_INFINITE_REPEAT(up) && low > up) {
- /* {n,m}+ supported case */
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_PLUS_POSSESSIVE_INTERVAL))
- return ONIGERR_UPPER_SMALLER_THAN_LOWER_IN_REPEAT_RANGE;
-
- tok->u.repeat.possessive = 1;
- {
- int tmp;
- tmp = low; low = up; up = tmp;
- }
- }
- else
- tok->u.repeat.possessive = 0;
-
- tok->type = TK_INTERVAL;
- tok->u.repeat.lower = low;
- tok->u.repeat.upper = up;
- *src = p;
- return r; /* 0: normal {n,m}, 2: fixed {n} */
-
- invalid:
- if (syn_allow) {
- /* *src = p; */ /* !!! Don't do this line !!! */
- return 1; /* OK */
- }
- else
- return ONIGERR_INVALID_REPEAT_RANGE_PATTERN;
-}
-
-/* \M-, \C-, \c, or \... */
-static int
-fetch_escaped_value(UChar** src, UChar* end, ScanEnv* env, OnigCodePoint* val)
-{
- int v;
- OnigCodePoint c;
- OnigEncoding enc = env->enc;
- UChar* p = *src;
-
- if (PEND) return ONIGERR_END_PATTERN_AT_ESCAPE;
-
- PFETCH_S(c);
- switch (c) {
- case 'M':
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ESC_CAPITAL_M_BAR_META)) {
- if (PEND) return ONIGERR_END_PATTERN_AT_META;
- PFETCH_S(c);
- if (c != '-') return ONIGERR_META_CODE_SYNTAX;
- if (PEND) return ONIGERR_END_PATTERN_AT_META;
- PFETCH_S(c);
- if (c == MC_ESC(env->syntax)) {
- v = fetch_escaped_value(&p, end, env, &c);
- if (v < 0) return v;
- }
- c = ((c & 0xff) | 0x80);
- }
- else
- goto backslash;
- break;
-
- case 'C':
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ESC_CAPITAL_C_BAR_CONTROL)) {
- if (PEND) return ONIGERR_END_PATTERN_AT_CONTROL;
- PFETCH_S(c);
- if (c != '-') return ONIGERR_CONTROL_CODE_SYNTAX;
- goto control;
- }
- else
- goto backslash;
-
- case 'c':
- if (IS_SYNTAX_OP(env->syntax, ONIG_SYN_OP_ESC_C_CONTROL)) {
- control:
- if (PEND) return ONIGERR_END_PATTERN_AT_CONTROL;
- PFETCH_S(c);
- if (c == '?') {
- c = 0177;
- }
- else {
- if (c == MC_ESC(env->syntax)) {
- v = fetch_escaped_value(&p, end, env, &c);
- if (v < 0) return v;
- }
- c &= 0x9f;
- }
- break;
- }
- /* fall through */
-
- default:
- {
- backslash:
- c = conv_backslash_value(c, env);
- }
- break;
- }
-
- *src = p;
- *val = c;
- return 0;
-}
-
-static int fetch_token(PToken* tok, UChar** src, UChar* end, ScanEnv* env);
-
-static OnigCodePoint
-get_name_end_code_point(OnigCodePoint start)
-{
- switch (start) {
- case '<': return (OnigCodePoint )'>'; break;
- case '\'': return (OnigCodePoint )'\''; break;
- case '(': return (OnigCodePoint )')'; break;
- default:
- break;
- }
-
- return (OnigCodePoint )0;
-}
-
-enum REF_NUM {
- IS_NOT_NUM = 0,
- IS_ABS_NUM = 1,
- IS_REL_NUM = 2
-};
-
-#ifdef USE_BACKREF_WITH_LEVEL
-/*
- \k<name+n>, \k<name-n>
- \k<num+n>, \k<num-n>
- \k<-num+n>, \k<-num-n>
- \k<+num+n>, \k<+num-n>
-*/
-static int
-fetch_name_with_level(OnigCodePoint start_code, UChar** src, UChar* end,
- UChar** rname_end, ScanEnv* env,
- int* rback_num, int* rlevel, enum REF_NUM* num_type)
-{
- int r, sign, exist_level;
- int digit_count;
- OnigCodePoint end_code;
- OnigCodePoint c = 0;
- OnigEncoding enc = env->enc;
- UChar *name_end;
- UChar *pnum_head;
- UChar *p = *src;
- PFETCH_READY;
-
- *rback_num = 0;
- exist_level = 0;
- *num_type = IS_NOT_NUM;
- sign = 1;
- pnum_head = *src;
-
- end_code = get_name_end_code_point(start_code);
-
- digit_count = 0;
- name_end = end;
- r = 0;
- if (PEND) {
- return ONIGERR_EMPTY_GROUP_NAME;
- }
- else {
- PFETCH(c);
- if (c == end_code)
- return ONIGERR_EMPTY_GROUP_NAME;
-
- if (IS_CODE_DIGIT_ASCII(enc, c)) {
- *num_type = IS_ABS_NUM;
- digit_count++;
- }
- else if (c == '-') {
- *num_type = IS_REL_NUM;
- sign = -1;
- pnum_head = p;
- }
- else if (c == '+') {
- *num_type = IS_REL_NUM;
- sign = 1;
- pnum_head = p;
- }
- else if (!ONIGENC_IS_CODE_WORD(enc, c)) {
- r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
- }
- }
-
- while (!PEND) {
- name_end = p;
- PFETCH(c);
- if (c == end_code || c == ')' || c == '+' || c == '-') {
- if (*num_type != IS_NOT_NUM && digit_count == 0)
- r = ONIGERR_INVALID_GROUP_NAME;
- break;
- }
-
- if (*num_type != IS_NOT_NUM) {
- if (IS_CODE_DIGIT_ASCII(enc, c)) {
- digit_count++;
- }
- else {
- r = ONIGERR_INVALID_GROUP_NAME;
- *num_type = IS_NOT_NUM;
- }
- }
- else if (!ONIGENC_IS_CODE_WORD(enc, c)) {
- r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
- }
- }
-
- if (r == 0 && c != end_code) {
- if (c == '+' || c == '-') {
- int level;
- int flag = (c == '-' ? -1 : 1);
-
- if (PEND) {
- r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
- goto end;
- }
- PFETCH(c);
- if (! IS_CODE_DIGIT_ASCII(enc, c)) goto err;
- PUNFETCH;
- level = onig_scan_unsigned_number(&p, end, enc);
- if (level < 0) return ONIGERR_TOO_BIG_NUMBER;
- *rlevel = (level * flag);
- exist_level = 1;
-
- if (!PEND) {
- PFETCH(c);
- if (c == end_code)
- goto end;
- }
- }
-
- err:
- name_end = end;
- err2:
- r = ONIGERR_INVALID_GROUP_NAME;
- }
-
- end:
- if (r == 0) {
- if (*num_type != IS_NOT_NUM) {
- *rback_num = onig_scan_unsigned_number(&pnum_head, name_end, enc);
- if (*rback_num < 0) return ONIGERR_TOO_BIG_NUMBER;
- else if (*rback_num == 0) {
- if (*num_type == IS_REL_NUM)
- goto err2;
- }
-
- *rback_num *= sign;
- }
-
- *rname_end = name_end;
- *src = p;
- return (exist_level ? 1 : 0);
- }
- else {
- onig_scan_env_set_error_string(env, r, *src, name_end);
- return r;
- }
-}
-#endif /* USE_BACKREF_WITH_LEVEL */
-
-/*
- ref: 0 -> define name (don't allow number name)
- 1 -> reference name (allow number name)
-*/
-static int
-fetch_name(OnigCodePoint start_code, UChar** src, UChar* end,
- UChar** rname_end, ScanEnv* env, int* rback_num,
- enum REF_NUM* num_type, int ref)
-{
- int r, sign;
- int digit_count;
- OnigCodePoint end_code;
- OnigCodePoint c = 0;
- OnigEncoding enc = env->enc;
- UChar *name_end;
- UChar *pnum_head;
- UChar *p = *src;
-
- *rback_num = 0;
-
- end_code = get_name_end_code_point(start_code);
-
- digit_count = 0;
- name_end = end;
- pnum_head = *src;
- r = 0;
- *num_type = IS_NOT_NUM;
- sign = 1;
- if (PEND) {
- return ONIGERR_EMPTY_GROUP_NAME;
- }
- else {
- PFETCH_S(c);
- if (c == end_code)
- return ONIGERR_EMPTY_GROUP_NAME;
-
- if (IS_CODE_DIGIT_ASCII(enc, c)) {
- if (ref == 1)
- *num_type = IS_ABS_NUM;
- else {
- r = ONIGERR_INVALID_GROUP_NAME;
- }
- digit_count++;
- }
- else if (c == '-') {
- if (ref == 1) {
- *num_type = IS_REL_NUM;
- sign = -1;
- pnum_head = p;
- }
- else {
- r = ONIGERR_INVALID_GROUP_NAME;
- }
- }
- else if (c == '+') {
- if (ref == 1) {
- *num_type = IS_REL_NUM;
- sign = 1;
- pnum_head = p;
- }
- else {
- r = ONIGERR_INVALID_GROUP_NAME;
- }
- }
- else if (!ONIGENC_IS_CODE_WORD(enc, c)) {
- r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
- }
- }
-
- if (r == 0) {
- while (!PEND) {
- name_end = p;
- PFETCH_S(c);
- if (c == end_code || c == ')') {
- if (*num_type != IS_NOT_NUM && digit_count == 0)
- r = ONIGERR_INVALID_GROUP_NAME;
- break;
- }
-
- if (*num_type != IS_NOT_NUM) {
- if (IS_CODE_DIGIT_ASCII(enc, c)) {
- digit_count++;
- }
- else {
- if (!ONIGENC_IS_CODE_WORD(enc, c))
- r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
- else
- r = ONIGERR_INVALID_GROUP_NAME;
-
- *num_type = IS_NOT_NUM;
- }
- }
- else {
- if (!ONIGENC_IS_CODE_WORD(enc, c)) {
- r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME;
- }
- }
- }
-
- if (c != end_code) {
- r = ONIGERR_INVALID_GROUP_NAME;
- goto err;
- }
-
- if (*num_type != IS_NOT_NUM) {
- *rback_num = onig_scan_unsigned_number(&pnum_head, name_end, enc);
- if (*rback_num < 0) return ONIGERR_TOO_BIG_NUMBER;
- else if (*rback_num == 0) {
- if (*num_type == IS_REL_NUM) {
- r = ONIGERR_INVALID_GROUP_NAME;
- goto err;
- }
- }
-
- *rback_num *= sign;
- }
-
- *rname_end = name_end;
- *src = p;
- return 0;
- }
- else {
- while (!PEND) {
- name_end = p;
- PFETCH_S(c);
- if (c == end_code || c == ')')
- break;
- }
- if (PEND)
- name_end = end;
-
- err:
- onig_scan_env_set_error_string(env, r, *src, name_end);
- return r;
- }
-}
-
-static void
-CC_ESC_WARN(ScanEnv* env, UChar *c)
-{
- if (onig_warn == onig_null_warn) return ;
-
- if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_WARN_CC_OP_NOT_ESCAPED) &&
- IS_SYNTAX_BV(env->syntax, ONIG_SYN_BACKSLASH_ESCAPE_IN_CC)) {
- UChar buf[WARN_BUFSIZE];
- onig_snprintf_with_pattern(buf, WARN_BUFSIZE, env->enc,
- env->pattern, env->pattern_end,
- (UChar* )"character class has '%s' without escape",
- c);
- (*onig_warn)((char* )buf);
- }
-}
-
-static void
-CLOSE_BRACKET_WITHOUT_ESC_WARN(ScanEnv* env, UChar* c)
-{
- if (onig_warn == onig_null_warn) return ;
-
- if (IS_SYNTAX_BV((env)->syntax, ONIG_SYN_WARN_CC_OP_NOT_ESCAPED)) {
- UChar buf[WARN_BUFSIZE];
- onig_snprintf_with_pattern(buf, WARN_BUFSIZE, (env)->enc,
- (env)->pattern, (env)->pattern_end,
- (UChar* )"regular expression has '%s' without escape", c);
- (*onig_warn)((char* )buf);
- }
-}
-
-static UChar*
-find_str_position(OnigCodePoint s[], int n, UChar* from, UChar* to,
- UChar **next, OnigEncoding enc)
-{
- int i;
- OnigCodePoint x;
- UChar *q;
- UChar *p = from;
-
- while (p < to) {
- x = ONIGENC_MBC_TO_CODE(enc, p, to);
- q = p + enclen(enc, p);
- if (x == s[0]) {
- for (i = 1; i < n && q < to; i++) {
- x = ONIGENC_MBC_TO_CODE(enc, q, to);
- if (x != s[i]) break;
- q += enclen(enc, q);
- }
- if (i >= n) {
- if (IS_NOT_NULL(next))
- *next = q;
- return p;
- }
- }
- p = q;
- }
- return NULL_UCHARP;
-}
-
-static int
-str_exist_check_with_esc(OnigCodePoint s[], int n, UChar* from, UChar* to,
- OnigCodePoint bad, OnigEncoding enc, OnigSyntaxType* syn)
-{
- int i, in_esc;
- OnigCodePoint x;
- UChar *q;
- UChar *p = from;
-
- in_esc = 0;
- while (p < to) {
- if (in_esc) {
- in_esc = 0;
- p += enclen(enc, p);
- }
- else {
- x = ONIGENC_MBC_TO_CODE(enc, p, to);
- q = p + enclen(enc, p);
- if (x == s[0]) {
- for (i = 1; i < n && q < to; i++) {
- x = ONIGENC_MBC_TO_CODE(enc, q, to);
- if (x != s[i]) break;
- q += enclen(enc, q);
- }
- if (i >= n) return 1;
- p += enclen(enc, p);
- }
- else {
- x = ONIGENC_MBC_TO_CODE(enc, p, to);
- if (x == bad) return 0;
- else if (x == MC_ESC(syn)) in_esc = 1;
- p = q;
- }
- }
- }
- return 0;
-}
-
-static int
-fetch_token_in_cc(PToken* tok, UChar** src, UChar* end, ScanEnv* env)
-{
- int num;
- OnigCodePoint c, c2;
- OnigSyntaxType* syn = env->syntax;
- OnigEncoding enc = env->enc;
- UChar* prev;
- UChar* p = *src;
- PFETCH_READY;
-
- if (PEND) {
- tok->type = TK_EOT;
- return tok->type;
- }
-
- PFETCH(c);
- tok->type = TK_CHAR;
- tok->base = 0;
- tok->u.c = c;
- tok->escaped = 0;
-
- if (c == ']') {
- tok->type = TK_CC_CLOSE;
- }
- else if (c == '-') {
- tok->type = TK_CC_RANGE;
- }
- else if (c == MC_ESC(syn)) {
- if (! IS_SYNTAX_BV(syn, ONIG_SYN_BACKSLASH_ESCAPE_IN_CC))
- goto end;
-
- if (PEND) return ONIGERR_END_PATTERN_AT_ESCAPE;
-
- PFETCH(c);
- tok->escaped = 1;
- tok->u.c = c;
- switch (c) {
- case 'w':
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_WORD;
- tok->u.prop.not = 0;
- break;
- case 'W':
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_WORD;
- tok->u.prop.not = 1;
- break;
- case 'd':
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_DIGIT;
- tok->u.prop.not = 0;
- break;
- case 'D':
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_DIGIT;
- tok->u.prop.not = 1;
- break;
- case 's':
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_SPACE;
- tok->u.prop.not = 0;
- break;
- case 'S':
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_SPACE;
- tok->u.prop.not = 1;
- break;
- case 'h':
- if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_H_XDIGIT)) break;
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_XDIGIT;
- tok->u.prop.not = 0;
- break;
- case 'H':
- if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_H_XDIGIT)) break;
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_XDIGIT;
- tok->u.prop.not = 1;
- break;
-
- case 'p':
- case 'P':
- if (PEND) break;
-
- c2 = PPEEK;
- if (c2 == '{' &&
- IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_P_BRACE_CHAR_PROPERTY)) {
- PINC;
- tok->type = TK_CHAR_PROPERTY;
- tok->u.prop.not = c == 'P';
-
- if (!PEND && IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_P_BRACE_CIRCUMFLEX_NOT)) {
- PFETCH(c2);
- if (c2 == '^') {
- tok->u.prop.not = tok->u.prop.not == 0;
- }
- else
- PUNFETCH;
- }
- }
- break;
-
- case 'o':
- if (PEND) break;
-
- prev = p;
- if (PPEEK_IS('{') && IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_O_BRACE_OCTAL)) {
- PINC;
- num = scan_unsigned_octal_number(&p, end, 11, enc);
- if (num < 0) return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE;
- if (!PEND) {
- c2 = PPEEK;
- if (IS_CODE_DIGIT_ASCII(enc, c2))
- return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE;
- }
-
- if (p > prev + enclen(enc, prev) && !PEND && (PPEEK_IS('}'))) {
- PINC;
- tok->type = TK_CODE_POINT;
- tok->base = 8;
- tok->u.code = (OnigCodePoint )num;
- }
- else {
- /* can't read nothing or invalid format */
- p = prev;
- }
- }
- break;
-
- case 'x':
- if (PEND) break;
-
- prev = p;
- if (PPEEK_IS('{') && IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_X_BRACE_HEX8)) {
- PINC;
- num = scan_unsigned_hexadecimal_number(&p, end, 0, 8, enc);
- if (num < 0) {
- if (num == ONIGERR_TOO_BIG_NUMBER)
- return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE;
- else
- return num;
- }
- if (!PEND) {
- c2 = PPEEK;
- if (IS_CODE_XDIGIT_ASCII(enc, c2))
- return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE;
- }
-
- if (p > prev + enclen(enc, prev) && !PEND && (PPEEK_IS('}'))) {
- PINC;
- tok->type = TK_CODE_POINT;
- tok->base = 16;
- tok->u.code = (OnigCodePoint )num;
- }
- else {
- /* can't read nothing or invalid format */
- p = prev;
- }
- }
- else if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_X_HEX2)) {
- num = scan_unsigned_hexadecimal_number(&p, end, 0, 2, enc);
- if (num < 0) return num;
- if (p == prev) { /* can't read nothing. */
- num = 0; /* but, it's not error */
- }
- tok->type = TK_RAW_BYTE;
- tok->base = 16;
- tok->u.c = num;
- }
- break;
-
- case 'u':
- if (PEND) break;
-
- prev = p;
- if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_U_HEX4)) {
- num = scan_unsigned_hexadecimal_number(&p, end, 4, 4, enc);
- if (num < 0) return num;
- if (p == prev) { /* can't read nothing. */
- num = 0; /* but, it's not error */
- }
- tok->type = TK_CODE_POINT;
- tok->base = 16;
- tok->u.code = (OnigCodePoint )num;
- }
- break;
-
- case '0':
- case '1': case '2': case '3': case '4': case '5': case '6': case '7':
- if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_OCTAL3)) {
- PUNFETCH;
- prev = p;
- num = scan_unsigned_octal_number(&p, end, 3, enc);
- if (num < 0 || num >= 256) return ONIGERR_TOO_BIG_NUMBER;
- if (p == prev) { /* can't read nothing. */
- num = 0; /* but, it's not error */
- }
- tok->type = TK_RAW_BYTE;
- tok->base = 8;
- tok->u.c = num;
- }
- break;
-
- default:
- PUNFETCH;
- num = fetch_escaped_value(&p, end, env, &c2);
- if (num < 0) return num;
- if (tok->u.c != c2) {
- tok->u.code = c2;
- tok->type = TK_CODE_POINT;
- }
- break;
- }
- }
- else if (c == '[') {
- if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_POSIX_BRACKET) && (PPEEK_IS(':'))) {
- OnigCodePoint send[] = { (OnigCodePoint )':', (OnigCodePoint )']' };
- tok->backp = p; /* point at '[' is read */
- PINC;
- if (str_exist_check_with_esc(send, 2, p, end,
- (OnigCodePoint )']', enc, syn)) {
- tok->type = TK_POSIX_BRACKET_OPEN;
- }
- else {
- PUNFETCH;
- goto cc_in_cc;
- }
- }
- else {
- cc_in_cc:
- if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_CCLASS_SET_OP)) {
- tok->type = TK_CC_CC_OPEN;
- }
- else {
- CC_ESC_WARN(env, (UChar* )"[");
- }
- }
- }
- else if (c == '&') {
- if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_CCLASS_SET_OP) &&
- !PEND && (PPEEK_IS('&'))) {
- PINC;
- tok->type = TK_CC_AND;
- }
- }
-
- end:
- *src = p;
- return tok->type;
-}
-
-static int
-fetch_token(PToken* tok, UChar** src, UChar* end, ScanEnv* env)
-{
- int r, num;
- OnigCodePoint c;
- OnigEncoding enc = env->enc;
- OnigSyntaxType* syn = env->syntax;
- UChar* prev;
- UChar* p = *src;
- PFETCH_READY;
-
- start:
- if (PEND) {
- tok->type = TK_EOT;
- return tok->type;
- }
-
- tok->type = TK_STRING;
- tok->base = 0;
- tok->backp = p;
-
- PFETCH(c);
- if (IS_MC_ESC_CODE(c, syn)) {
- if (PEND) return ONIGERR_END_PATTERN_AT_ESCAPE;
-
- tok->backp = p;
- PFETCH(c);
-
- tok->u.c = c;
- tok->escaped = 1;
- switch (c) {
- case '*':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_ASTERISK_ZERO_INF)) break;
- tok->type = TK_REPEAT;
- tok->u.repeat.lower = 0;
- tok->u.repeat.upper = INFINITE_REPEAT;
- goto greedy_check;
- break;
-
- case '+':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_PLUS_ONE_INF)) break;
- tok->type = TK_REPEAT;
- tok->u.repeat.lower = 1;
- tok->u.repeat.upper = INFINITE_REPEAT;
- goto greedy_check;
- break;
-
- case '?':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_QMARK_ZERO_ONE)) break;
- tok->type = TK_REPEAT;
- tok->u.repeat.lower = 0;
- tok->u.repeat.upper = 1;
- greedy_check:
- tok->u.repeat.possessive = 0;
- greedy_check2:
- if (!PEND && PPEEK_IS('?') &&
- IS_SYNTAX_OP(syn, ONIG_SYN_OP_QMARK_NON_GREEDY) &&
- tok->u.repeat.possessive == 0) {
- PFETCH(c);
- tok->u.repeat.greedy = 0;
- tok->u.repeat.possessive = 0;
- }
- else {
- possessive_check:
- tok->u.repeat.greedy = 1;
- if (!PEND && PPEEK_IS('+') &&
- ((IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_PLUS_POSSESSIVE_REPEAT) &&
- tok->type != TK_INTERVAL) ||
- (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_PLUS_POSSESSIVE_INTERVAL) &&
- tok->type == TK_INTERVAL)) &&
- tok->u.repeat.possessive == 0) {
- PFETCH(c);
- tok->u.repeat.possessive = 1;
- }
- }
- break;
-
- case '{':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_BRACE_INTERVAL)) break;
- r = fetch_interval_quantifier(&p, end, tok, env);
- if (r < 0) return r; /* error */
- if (r == 0) goto greedy_check2;
- else if (r == 2) { /* {n} */
- if (IS_SYNTAX_BV(syn, ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY))
- goto possessive_check;
-
- goto greedy_check2;
- }
- /* r == 1 : normal char */
- break;
-
- case '|':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_VBAR_ALT)) break;
- tok->type = TK_ALT;
- break;
-
- case '(':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_LPAREN_SUBEXP)) break;
- tok->type = TK_SUBEXP_OPEN;
- break;
-
- case ')':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_LPAREN_SUBEXP)) break;
- tok->type = TK_SUBEXP_CLOSE;
- break;
-
- case 'w':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_W_WORD)) break;
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_WORD;
- tok->u.prop.not = 0;
- break;
-
- case 'W':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_W_WORD)) break;
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_WORD;
- tok->u.prop.not = 1;
- break;
-
- case 'b':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_B_WORD_BOUND)) break;
- tok->type = TK_ANCHOR;
- tok->u.anchor = ANCR_WORD_BOUNDARY;
- break;
-
- case 'B':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_B_WORD_BOUND)) break;
- tok->type = TK_ANCHOR;
- tok->u.anchor = ANCR_NO_WORD_BOUNDARY;
- break;
-
- case 'y':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP2_ESC_X_Y_TEXT_SEGMENT)) break;
- tok->type = TK_ANCHOR;
- tok->u.anchor = ANCR_TEXT_SEGMENT_BOUNDARY;
- break;
-
- case 'Y':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP2_ESC_X_Y_TEXT_SEGMENT)) break;
- tok->type = TK_ANCHOR;
- tok->u.anchor = ANCR_NO_TEXT_SEGMENT_BOUNDARY;
- break;
-
-#ifdef USE_WORD_BEGIN_END
- case '<':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END)) break;
- tok->type = TK_ANCHOR;
- tok->u.anchor = ANCR_WORD_BEGIN;
- break;
-
- case '>':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END)) break;
- tok->type = TK_ANCHOR;
- tok->u.anchor = ANCR_WORD_END;
- break;
-#endif
-
- case 's':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_S_WHITE_SPACE)) break;
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_SPACE;
- tok->u.prop.not = 0;
- break;
-
- case 'S':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_S_WHITE_SPACE)) break;
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_SPACE;
- tok->u.prop.not = 1;
- break;
-
- case 'd':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_D_DIGIT)) break;
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_DIGIT;
- tok->u.prop.not = 0;
- break;
-
- case 'D':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_D_DIGIT)) break;
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_DIGIT;
- tok->u.prop.not = 1;
- break;
-
- case 'h':
- if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_H_XDIGIT)) break;
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_XDIGIT;
- tok->u.prop.not = 0;
- break;
-
- case 'H':
- if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_H_XDIGIT)) break;
- tok->type = TK_CHAR_TYPE;
- tok->u.prop.ctype = ONIGENC_CTYPE_XDIGIT;
- tok->u.prop.not = 1;
- break;
-
- case 'K':
- if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_K_KEEP)) break;
- tok->type = TK_KEEP;
- break;
-
- case 'R':
- if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_R_GENERAL_NEWLINE)) break;
- tok->type = TK_GENERAL_NEWLINE;
- break;
-
- case 'N':
- if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_N_O_SUPER_DOT)) break;
- tok->type = TK_NO_NEWLINE;
- break;
-
- case 'O':
- if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_N_O_SUPER_DOT)) break;
- tok->type = TK_TRUE_ANYCHAR;
- break;
-
- case 'X':
- if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_X_Y_TEXT_SEGMENT)) break;
- tok->type = TK_TEXT_SEGMENT;
- break;
-
- case 'A':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_AZ_BUF_ANCHOR)) break;
- begin_buf:
- tok->type = TK_ANCHOR;
- tok->u.subtype = ANCR_BEGIN_BUF;
- break;
-
- case 'Z':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_AZ_BUF_ANCHOR)) break;
- tok->type = TK_ANCHOR;
- tok->u.subtype = ANCR_SEMI_END_BUF;
- break;
-
- case 'z':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_AZ_BUF_ANCHOR)) break;
- end_buf:
- tok->type = TK_ANCHOR;
- tok->u.subtype = ANCR_END_BUF;
- break;
-
- case 'G':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_CAPITAL_G_BEGIN_ANCHOR)) break;
- tok->type = TK_ANCHOR;
- tok->u.subtype = ANCR_BEGIN_POSITION;
- break;
-
- case '`':
- if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_GNU_BUF_ANCHOR)) break;
- goto begin_buf;
- break;
-
- case '\'':
- if (! IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_GNU_BUF_ANCHOR)) break;
- goto end_buf;
- break;
-
- case 'o':
- if (PEND) break;
-
- prev = p;
- if (PPEEK_IS('{') && IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_O_BRACE_OCTAL)) {
- PINC;
- num = scan_unsigned_octal_number(&p, end, 11, enc);
- if (num < 0) return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE;
- if (!PEND) {
- if (IS_CODE_DIGIT_ASCII(enc, PPEEK))
- return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE;
- }
-
- if ((p > prev + enclen(enc, prev)) && !PEND && PPEEK_IS('}')) {
- PINC;
- tok->type = TK_CODE_POINT;
- tok->u.code = (OnigCodePoint )num;
- }
- else {
- /* can't read nothing or invalid format */
- p = prev;
- }
- }
- break;
-
- case 'x':
- if (PEND) break;
-
- prev = p;
- if (PPEEK_IS('{') && IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_X_BRACE_HEX8)) {
- PINC;
- num = scan_unsigned_hexadecimal_number(&p, end, 0, 8, enc);
- if (num < 0) {
- if (num == ONIGERR_TOO_BIG_NUMBER)
- return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE;
- else
- return num;
- }
- if (!PEND) {
- if (IS_CODE_XDIGIT_ASCII(enc, PPEEK))
- return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE;
- }
-
- if ((p > prev + enclen(enc, prev)) && !PEND && PPEEK_IS('}')) {
- PINC;
- tok->type = TK_CODE_POINT;
- tok->u.code = (OnigCodePoint )num;
- }
- else {
- /* can't read nothing or invalid format */
- p = prev;
- }
- }
- else if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_X_HEX2)) {
- num = scan_unsigned_hexadecimal_number(&p, end, 0, 2, enc);
- if (num < 0) return num;
- if (p == prev) { /* can't read nothing. */
- num = 0; /* but, it's not error */
- }
- tok->type = TK_RAW_BYTE;
- tok->base = 16;
- tok->u.c = num;
- }
- break;
-
- case 'u':
- if (PEND) break;
-
- prev = p;
- if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_U_HEX4)) {
- num = scan_unsigned_hexadecimal_number(&p, end, 4, 4, enc);
- if (num < 0) return num;
- if (p == prev) { /* can't read nothing. */
- num = 0; /* but, it's not error */
- }
- tok->type = TK_CODE_POINT;
- tok->base = 16;
- tok->u.code = (OnigCodePoint )num;
- }
- break;
-
- case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- PUNFETCH;
- prev = p;
- num = onig_scan_unsigned_number(&p, end, enc);
- if (num < 0 || num > ONIG_MAX_BACKREF_NUM) {
- goto skip_backref;
- }
-
- if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_DECIMAL_BACKREF) &&
- (num <= env->num_mem || num <= 9)) { /* This spec. from GNU regex */
- if (IS_SYNTAX_BV(syn, ONIG_SYN_STRICT_CHECK_BACKREF)) {
- if (num > env->num_mem || IS_NULL(SCANENV_MEMENV(env)[num].node))
- return ONIGERR_INVALID_BACKREF;
- }
-
- tok->type = TK_BACKREF;
- tok->u.backref.num = 1;
- tok->u.backref.ref1 = num;
- tok->u.backref.by_name = 0;
-#ifdef USE_BACKREF_WITH_LEVEL
- tok->u.backref.exist_level = 0;
-#endif
- break;
- }
-
- skip_backref:
- if (c == '8' || c == '9') {
- /* normal char */
- p = prev; PINC;
- break;
- }
-
- p = prev;
- /* fall through */
- case '0':
- if (IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_OCTAL3)) {
- prev = p;
- num = scan_unsigned_octal_number(&p, end, (c == '0' ? 2:3), enc);
- if (num < 0 || num >= 256) return ONIGERR_TOO_BIG_NUMBER;
- if (p == prev) { /* can't read nothing. */
- num = 0; /* but, it's not error */
- }
- tok->type = TK_RAW_BYTE;
- tok->base = 8;
- tok->u.c = num;
- }
- else if (c != '0') {
- PINC;
- }
- break;
-
- case 'k':
- if (!PEND && IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_K_NAMED_BACKREF)) {
- PFETCH(c);
- if (c == '<' || c == '\'') {
- UChar* name_end;
- int* backs;
- int back_num;
- enum REF_NUM num_type;
-
- prev = p;
-
-#ifdef USE_BACKREF_WITH_LEVEL
- name_end = NULL_UCHARP; /* no need. escape gcc warning. */
- r = fetch_name_with_level((OnigCodePoint )c, &p, end, &name_end,
- env, &back_num, &tok->u.backref.level, &num_type);
- if (r == 1) tok->u.backref.exist_level = 1;
- else tok->u.backref.exist_level = 0;
-#else
- r = fetch_name(c, &p, end, &name_end, env, &back_num, &num_type, 1);
-#endif
- if (r < 0) return r;
-
- if (num_type != IS_NOT_NUM) {
- if (num_type == IS_REL_NUM) {
- back_num = backref_rel_to_abs(back_num, env);
- }
- if (back_num <= 0)
- return ONIGERR_INVALID_BACKREF;
-
- if (IS_SYNTAX_BV(syn, ONIG_SYN_STRICT_CHECK_BACKREF)) {
- if (back_num > env->num_mem ||
- IS_NULL(SCANENV_MEMENV(env)[back_num].node))
- return ONIGERR_INVALID_BACKREF;
- }
- tok->type = TK_BACKREF;
- tok->u.backref.by_name = 0;
- tok->u.backref.num = 1;
- tok->u.backref.ref1 = back_num;
- }
- else {
- num = name_to_group_numbers(env, prev, name_end, &backs);
- if (num <= 0) {
- return ONIGERR_UNDEFINED_NAME_REFERENCE;
- }
- if (IS_SYNTAX_BV(syn, ONIG_SYN_STRICT_CHECK_BACKREF)) {
- int i;
- for (i = 0; i < num; i++) {
- if (backs[i] > env->num_mem ||
- IS_NULL(SCANENV_MEMENV(env)[backs[i]].node))
- return ONIGERR_INVALID_BACKREF;
- }
- }
-
- tok->type = TK_BACKREF;
- tok->u.backref.by_name = 1;
- if (num == 1) {
- tok->u.backref.num = 1;
- tok->u.backref.ref1 = backs[0];
- }
- else {
- tok->u.backref.num = num;
- tok->u.backref.refs = backs;
- }
- }
- }
- else
- PUNFETCH;
- }
- break;
-
-#ifdef USE_CALL
- case 'g':
- if (!PEND && IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_G_SUBEXP_CALL)) {
- PFETCH(c);
- if (c == '<' || c == '\'') {
- int gnum;
- UChar* name_end;
- enum REF_NUM num_type;
-
- prev = p;
- r = fetch_name((OnigCodePoint )c, &p, end, &name_end, env,
- &gnum, &num_type, 1);
- if (r < 0) return r;
-
- if (num_type != IS_NOT_NUM) {
- if (num_type == IS_REL_NUM) {
- gnum = backref_rel_to_abs(gnum, env);
- if (gnum < 0) {
- onig_scan_env_set_error_string(env, ONIGERR_UNDEFINED_NAME_REFERENCE,
- prev, name_end);
- return ONIGERR_UNDEFINED_GROUP_REFERENCE;
- }
- }
- tok->u.call.by_number = 1;
- tok->u.call.gnum = gnum;
- }
- else {
- tok->u.call.by_number = 0;
- tok->u.call.gnum = 0;
- }
-
- tok->type = TK_CALL;
- tok->u.call.name = prev;
- tok->u.call.name_end = name_end;
- }
- else
- PUNFETCH;
- }
- break;
-#endif
-
- case 'Q':
- if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_Q_QUOTE)) {
- tok->type = TK_QUOTE_OPEN;
- }
- break;
-
- case 'p':
- case 'P':
- if (!PEND && PPEEK_IS('{') &&
- IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_P_BRACE_CHAR_PROPERTY)) {
- PINC;
- tok->type = TK_CHAR_PROPERTY;
- tok->u.prop.not = c == 'P';
-
- if (!PEND &&
- IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_P_BRACE_CIRCUMFLEX_NOT)) {
- PFETCH(c);
- if (c == '^') {
- tok->u.prop.not = tok->u.prop.not == 0;
- }
- else
- PUNFETCH;
- }
- }
- break;
-
- default:
- {
- OnigCodePoint c2;
-
- PUNFETCH;
- num = fetch_escaped_value(&p, end, env, &c2);
- if (num < 0) return num;
- /* set_raw: */
- if (tok->u.c != c2) {
- tok->type = TK_CODE_POINT;
- tok->u.code = c2;
- }
- else { /* string */
- p = tok->backp + enclen(enc, tok->backp);
- }
- }
- break;
- }
- }
- else {
- tok->u.c = c;
- tok->escaped = 0;
-
-#ifdef USE_VARIABLE_META_CHARS
- if ((c != ONIG_INEFFECTIVE_META_CHAR) &&
- IS_SYNTAX_OP(syn, ONIG_SYN_OP_VARIABLE_META_CHARACTERS)) {
- if (c == MC_ANYCHAR(syn))
- goto any_char;
- else if (c == MC_ANYTIME(syn))
- goto anytime;
- else if (c == MC_ZERO_OR_ONE_TIME(syn))
- goto zero_or_one_time;
- else if (c == MC_ONE_OR_MORE_TIME(syn))
- goto one_or_more_time;
- else if (c == MC_ANYCHAR_ANYTIME(syn)) {
- tok->type = TK_ANYCHAR_ANYTIME;
- goto out;
- }
- }
-#endif
-
- switch (c) {
- case '.':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_DOT_ANYCHAR)) break;
-#ifdef USE_VARIABLE_META_CHARS
- any_char:
-#endif
- tok->type = TK_ANYCHAR;
- break;
-
- case '*':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ASTERISK_ZERO_INF)) break;
-#ifdef USE_VARIABLE_META_CHARS
- anytime:
-#endif
- tok->type = TK_REPEAT;
- tok->u.repeat.lower = 0;
- tok->u.repeat.upper = INFINITE_REPEAT;
- goto greedy_check;
- break;
-
- case '+':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_PLUS_ONE_INF)) break;
-#ifdef USE_VARIABLE_META_CHARS
- one_or_more_time:
-#endif
- tok->type = TK_REPEAT;
- tok->u.repeat.lower = 1;
- tok->u.repeat.upper = INFINITE_REPEAT;
- goto greedy_check;
- break;
-
- case '?':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_QMARK_ZERO_ONE)) break;
-#ifdef USE_VARIABLE_META_CHARS
- zero_or_one_time:
-#endif
- tok->type = TK_REPEAT;
- tok->u.repeat.lower = 0;
- tok->u.repeat.upper = 1;
- goto greedy_check;
- break;
-
- case '{':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_BRACE_INTERVAL)) break;
- r = fetch_interval_quantifier(&p, end, tok, env);
- if (r < 0) return r; /* error */
- if (r == 0) goto greedy_check2;
- else if (r == 2) { /* {n} */
- if (IS_SYNTAX_BV(syn, ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY))
- goto possessive_check;
-
- goto greedy_check2;
- }
- /* r == 1 : normal char */
- break;
-
- case '|':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_VBAR_ALT)) break;
- tok->type = TK_ALT;
- break;
-
- case '(':
- if (!PEND && PPEEK_IS('?') &&
- IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_QMARK_GROUP_EFFECT)) {
- PINC;
- if (! PEND) {
- c = PPEEK;
- if (c == '#') {
- PFETCH(c);
- while (1) {
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- PFETCH(c);
- if (c == MC_ESC(syn)) {
- if (! PEND) PFETCH(c);
- }
- else {
- if (c == ')') break;
- }
- }
- goto start;
- }
- else if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_QMARK_PERL_SUBEXP_CALL)) {
- int gnum;
- UChar* name;
- UChar* name_end;
- enum REF_NUM num_type;
-
- switch (c) {
- case '&':
- {
- PINC;
- name = p;
- r = fetch_name((OnigCodePoint )'(', &p, end, &name_end, env, &gnum,
- &num_type, 0);
- if (r < 0) return r;
-
- tok->type = TK_CALL;
- tok->u.call.by_number = 0;
- tok->u.call.gnum = 0;
- tok->u.call.name = name;
- tok->u.call.name_end = name_end;
- }
- break;
-
- case 'R':
- tok->type = TK_CALL;
- tok->u.call.by_number = 1;
- tok->u.call.gnum = 0;
- tok->u.call.name = p;
- PINC;
- if (! PPEEK_IS(')')) return ONIGERR_UNDEFINED_GROUP_OPTION;
- tok->u.call.name_end = p;
- break;
-
- case '-':
- case '+':
- goto lparen_qmark_num;
- break;
- default:
- if (! ONIGENC_IS_CODE_DIGIT(enc, c)) goto lparen_qmark_end;
-
- lparen_qmark_num:
- {
- name = p;
- r = fetch_name((OnigCodePoint )'(', &p, end, &name_end, env,
- &gnum, &num_type, 1);
- if (r < 0) return r;
-
- if (num_type == IS_NOT_NUM) {
- return ONIGERR_INVALID_GROUP_NAME;
- }
- else {
- if (num_type == IS_REL_NUM) {
- gnum = backref_rel_to_abs(gnum, env);
- if (gnum < 0) {
- onig_scan_env_set_error_string(env,
- ONIGERR_UNDEFINED_NAME_REFERENCE, name, name_end);
- return ONIGERR_UNDEFINED_GROUP_REFERENCE;
- }
- }
- tok->u.call.by_number = 1;
- tok->u.call.gnum = gnum;
- }
-
- tok->type = TK_CALL;
- tok->u.call.name = name;
- tok->u.call.name_end = name_end;
- }
- break;
- }
- }
- }
- lparen_qmark_end:
- PUNFETCH;
- }
-
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_LPAREN_SUBEXP)) break;
- tok->type = TK_SUBEXP_OPEN;
- break;
-
- case ')':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_LPAREN_SUBEXP)) break;
- tok->type = TK_SUBEXP_CLOSE;
- break;
-
- case '^':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_LINE_ANCHOR)) break;
- tok->type = TK_ANCHOR;
- tok->u.subtype = (IS_SINGLELINE(env->options)
- ? ANCR_BEGIN_BUF : ANCR_BEGIN_LINE);
- break;
-
- case '$':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_LINE_ANCHOR)) break;
- tok->type = TK_ANCHOR;
- tok->u.subtype = (IS_SINGLELINE(env->options)
- ? ANCR_SEMI_END_BUF : ANCR_END_LINE);
- break;
-
- case '[':
- if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_BRACKET_CC)) break;
- tok->type = TK_CC_OPEN;
- break;
-
- case ']':
- if (*src > env->pattern) /* /].../ is allowed. */
- CLOSE_BRACKET_WITHOUT_ESC_WARN(env, (UChar* )"]");
- break;
-
- case '#':
- if (IS_EXTEND(env->options)) {
- while (!PEND) {
- PFETCH(c);
- if (ONIGENC_IS_CODE_NEWLINE(enc, c))
- break;
- }
- goto start;
- break;
- }
- break;
-
- case ' ': case '\t': case '\n': case '\r': case '\f':
- if (IS_EXTEND(env->options))
- goto start;
- break;
-
- default:
- /* string */
- break;
- }
- }
-
-#ifdef USE_VARIABLE_META_CHARS
- out:
-#endif
- *src = p;
- return tok->type;
-}
-
-static int
-add_ctype_to_cc_by_range(CClassNode* cc, int ctype ARG_UNUSED, int not,
- OnigEncoding enc ARG_UNUSED, OnigCodePoint sb_out,
- const OnigCodePoint mbr[])
-{
- int i, r;
- OnigCodePoint j;
-
- int n = ONIGENC_CODE_RANGE_NUM(mbr);
-
- if (not == 0) {
- for (i = 0; i < n; i++) {
- for (j = ONIGENC_CODE_RANGE_FROM(mbr, i);
- j <= ONIGENC_CODE_RANGE_TO(mbr, i); j++) {
- if (j >= sb_out) {
- if (j > ONIGENC_CODE_RANGE_FROM(mbr, i)) {
- r = add_code_range_to_buf(&(cc->mbuf), j,
- ONIGENC_CODE_RANGE_TO(mbr, i));
- if (r != 0) return r;
- i++;
- }
-
- goto sb_end;
- }
- BITSET_SET_BIT(cc->bs, j);
- }
- }
-
- sb_end:
- for ( ; i < n; i++) {
- r = add_code_range_to_buf(&(cc->mbuf),
- ONIGENC_CODE_RANGE_FROM(mbr, i),
- ONIGENC_CODE_RANGE_TO(mbr, i));
- if (r != 0) return r;
- }
- }
- else {
- OnigCodePoint prev = 0;
-
- for (i = 0; i < n; i++) {
- for (j = prev; j < ONIGENC_CODE_RANGE_FROM(mbr, i); j++) {
- if (j >= sb_out) {
- goto sb_end2;
- }
- BITSET_SET_BIT(cc->bs, j);
- }
- prev = ONIGENC_CODE_RANGE_TO(mbr, i) + 1;
- }
- for (j = prev; j < sb_out; j++) {
- BITSET_SET_BIT(cc->bs, j);
- }
-
- sb_end2:
- prev = sb_out;
-
- for (i = 0; i < n; i++) {
- if (prev < ONIGENC_CODE_RANGE_FROM(mbr, i)) {
- r = add_code_range_to_buf(&(cc->mbuf), prev,
- ONIGENC_CODE_RANGE_FROM(mbr, i) - 1);
- if (r != 0) return r;
- }
- prev = ONIGENC_CODE_RANGE_TO(mbr, i) + 1;
- if (prev == 0) goto end;
- }
-
- r = add_code_range_to_buf(&(cc->mbuf), prev, MAX_CODE_POINT);
- if (r != 0) return r;
- }
-
- end:
- return 0;
-}
-
-static int
-add_ctype_to_cc_by_range_limit(CClassNode* cc, int ctype ARG_UNUSED, int not,
- OnigEncoding enc ARG_UNUSED,
- OnigCodePoint sb_out,
- const OnigCodePoint mbr[], OnigCodePoint limit)
-{
- int i, r;
- OnigCodePoint j;
- OnigCodePoint from;
- OnigCodePoint to;
-
- int n = ONIGENC_CODE_RANGE_NUM(mbr);
-
- if (not == 0) {
- for (i = 0; i < n; i++) {
- for (j = ONIGENC_CODE_RANGE_FROM(mbr, i);
- j <= ONIGENC_CODE_RANGE_TO(mbr, i); j++) {
- if (j > limit) goto end;
- if (j >= sb_out) {
- if (j > ONIGENC_CODE_RANGE_FROM(mbr, i)) {
- to = ONIGENC_CODE_RANGE_TO(mbr, i);
- if (to > limit) to = limit;
- r = add_code_range_to_buf(&(cc->mbuf), j, to);
- if (r != 0) return r;
- i++;
- }
-
- goto sb_end;
- }
- BITSET_SET_BIT(cc->bs, j);
- }
- }
-
- sb_end:
- for ( ; i < n; i++) {
- from = ONIGENC_CODE_RANGE_FROM(mbr, i);
- to = ONIGENC_CODE_RANGE_TO(mbr, i);
- if (from > limit) break;
- if (to > limit) to = limit;
- r = add_code_range_to_buf(&(cc->mbuf), from, to);
- if (r != 0) return r;
- }
- }
- else {
- OnigCodePoint prev = 0;
-
- for (i = 0; i < n; i++) {
- from = ONIGENC_CODE_RANGE_FROM(mbr, i);
- if (from > limit) {
- for (j = prev; j < sb_out; j++) {
- BITSET_SET_BIT(cc->bs, j);
- }
- goto sb_end2;
- }
- for (j = prev; j < from; j++) {
- if (j >= sb_out) goto sb_end2;
- BITSET_SET_BIT(cc->bs, j);
- }
- prev = ONIGENC_CODE_RANGE_TO(mbr, i);
- if (prev > limit) prev = limit;
- prev++;
- if (prev == 0) goto end;
- }
- for (j = prev; j < sb_out; j++) {
- BITSET_SET_BIT(cc->bs, j);
- }
-
- sb_end2:
- prev = sb_out;
-
- for (i = 0; i < n; i++) {
- from = ONIGENC_CODE_RANGE_FROM(mbr, i);
- if (from > limit) goto last;
-
- if (prev < from) {
- r = add_code_range_to_buf(&(cc->mbuf), prev, from - 1);
- if (r != 0) return r;
- }
- prev = ONIGENC_CODE_RANGE_TO(mbr, i);
- if (prev > limit) prev = limit;
- prev++;
- if (prev == 0) goto end;
- }
-
- last:
- r = add_code_range_to_buf(&(cc->mbuf), prev, MAX_CODE_POINT);
- if (r != 0) return r;
- }
-
- end:
- return 0;
-}
-
-static int
-add_ctype_to_cc(CClassNode* cc, int ctype, int not, ScanEnv* env)
-{
-#define ASCII_LIMIT 127
-
- int c, r;
- int ascii_mode;
- const OnigCodePoint *ranges;
- OnigCodePoint limit;
- OnigCodePoint sb_out;
- OnigEncoding enc = env->enc;
-
- ascii_mode = IS_ASCII_MODE_CTYPE_OPTION(ctype, env->options);
-
- r = ONIGENC_GET_CTYPE_CODE_RANGE(enc, ctype, &sb_out, &ranges);
- if (r == 0) {
- if (ascii_mode == 0)
- r = add_ctype_to_cc_by_range(cc, ctype, not, env->enc, sb_out, ranges);
- else
- r = add_ctype_to_cc_by_range_limit(cc, ctype, not, env->enc, sb_out,
- ranges, ASCII_LIMIT);
- return r;
- }
- else if (r != ONIG_NO_SUPPORT_CONFIG) {
- return r;
- }
-
- r = 0;
- limit = ascii_mode ? ASCII_LIMIT : SINGLE_BYTE_SIZE;
-
- switch (ctype) {
- case ONIGENC_CTYPE_ALPHA:
- case ONIGENC_CTYPE_BLANK:
- case ONIGENC_CTYPE_CNTRL:
- case ONIGENC_CTYPE_DIGIT:
- case ONIGENC_CTYPE_LOWER:
- case ONIGENC_CTYPE_PUNCT:
- case ONIGENC_CTYPE_SPACE:
- case ONIGENC_CTYPE_UPPER:
- case ONIGENC_CTYPE_XDIGIT:
- case ONIGENC_CTYPE_ASCII:
- case ONIGENC_CTYPE_ALNUM:
- if (not != 0) {
- for (c = 0; c < (int )limit; c++) {
- if (! ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype))
- BITSET_SET_BIT(cc->bs, c);
- }
- for (c = limit; c < SINGLE_BYTE_SIZE; c++) {
- BITSET_SET_BIT(cc->bs, c);
- }
-
- ADD_ALL_MULTI_BYTE_RANGE(enc, cc->mbuf);
- }
- else {
- for (c = 0; c < (int )limit; c++) {
- if (ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype))
- BITSET_SET_BIT(cc->bs, c);
- }
- }
- break;
-
- case ONIGENC_CTYPE_GRAPH:
- case ONIGENC_CTYPE_PRINT:
- case ONIGENC_CTYPE_WORD:
- if (not != 0) {
- for (c = 0; c < (int )limit; c++) {
- if (ONIGENC_CODE_TO_MBCLEN(enc, c) > 0 /* check invalid code point */
- && ! ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype))
- BITSET_SET_BIT(cc->bs, c);
- }
- for (c = limit; c < SINGLE_BYTE_SIZE; c++) {
- if (ONIGENC_CODE_TO_MBCLEN(enc, c) > 0)
- BITSET_SET_BIT(cc->bs, c);
- }
- }
- else {
- for (c = 0; c < (int )limit; c++) {
- if (ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype))
- BITSET_SET_BIT(cc->bs, c);
- }
- if (ascii_mode == 0)
- ADD_ALL_MULTI_BYTE_RANGE(enc, cc->mbuf);
- }
- break;
-
- default:
- return ONIGERR_PARSER_BUG;
- break;
- }
-
- return r;
-}
-
-static int
-parse_posix_bracket(CClassNode* cc, UChar** src, UChar* end, ScanEnv* env)
-{
-#define POSIX_BRACKET_CHECK_LIMIT_LENGTH 20
-#define POSIX_BRACKET_NAME_MIN_LEN 4
-
- static PosixBracketEntryType PBS[] = {
- { (UChar* )"alnum", ONIGENC_CTYPE_ALNUM, 5 },
- { (UChar* )"alpha", ONIGENC_CTYPE_ALPHA, 5 },
- { (UChar* )"blank", ONIGENC_CTYPE_BLANK, 5 },
- { (UChar* )"cntrl", ONIGENC_CTYPE_CNTRL, 5 },
- { (UChar* )"digit", ONIGENC_CTYPE_DIGIT, 5 },
- { (UChar* )"graph", ONIGENC_CTYPE_GRAPH, 5 },
- { (UChar* )"lower", ONIGENC_CTYPE_LOWER, 5 },
- { (UChar* )"print", ONIGENC_CTYPE_PRINT, 5 },
- { (UChar* )"punct", ONIGENC_CTYPE_PUNCT, 5 },
- { (UChar* )"space", ONIGENC_CTYPE_SPACE, 5 },
- { (UChar* )"upper", ONIGENC_CTYPE_UPPER, 5 },
- { (UChar* )"xdigit", ONIGENC_CTYPE_XDIGIT, 6 },
- { (UChar* )"ascii", ONIGENC_CTYPE_ASCII, 5 },
- { (UChar* )"word", ONIGENC_CTYPE_WORD, 4 },
- { (UChar* )NULL, -1, 0 }
- };
-
- PosixBracketEntryType *pb;
- int not, i, r;
- OnigCodePoint c;
- OnigEncoding enc = env->enc;
- UChar *p = *src;
-
- if (PPEEK_IS('^')) {
- PINC_S;
- not = 1;
- }
- else
- not = 0;
-
- if (onigenc_strlen(enc, p, end) < POSIX_BRACKET_NAME_MIN_LEN + 3)
- goto not_posix_bracket;
-
- for (pb = PBS; IS_NOT_NULL(pb->name); pb++) {
- if (onigenc_with_ascii_strncmp(enc, p, end, pb->name, pb->len) == 0) {
- p = (UChar* )onigenc_step(enc, p, end, pb->len);
- if (onigenc_with_ascii_strncmp(enc, p, end, (UChar* )":]", 2) != 0)
- return ONIGERR_INVALID_POSIX_BRACKET_TYPE;
-
- r = add_ctype_to_cc(cc, pb->ctype, not, env);
- if (r != 0) return r;
-
- PINC_S; PINC_S;
- *src = p;
- return 0;
- }
- }
-
- not_posix_bracket:
- c = 0;
- i = 0;
- while (!PEND && ((c = PPEEK) != ':') && c != ']') {
- PINC_S;
- if (++i > POSIX_BRACKET_CHECK_LIMIT_LENGTH) break;
- }
- if (c == ':' && ! PEND) {
- PINC_S;
- if (! PEND) {
- PFETCH_S(c);
- if (c == ']')
- return ONIGERR_INVALID_POSIX_BRACKET_TYPE;
- }
- }
-
- return 1; /* 1: is not POSIX bracket, but no error. */
-}
-
-static int
-fetch_char_property_to_ctype(UChar** src, UChar* end, ScanEnv* env)
-{
- int r;
- OnigCodePoint c;
- OnigEncoding enc = env->enc;
- UChar *prev, *start, *p = *src;
-
- r = 0;
- start = prev = p;
-
- while (!PEND) {
- prev = p;
- PFETCH_S(c);
- if (c == '}') {
- r = ONIGENC_PROPERTY_NAME_TO_CTYPE(enc, start, prev);
- if (r < 0) break;
-
- *src = p;
- return r;
- }
- else if (c == '(' || c == ')' || c == '{' || c == '|') {
- r = ONIGERR_INVALID_CHAR_PROPERTY_NAME;
- break;
- }
- }
-
- onig_scan_env_set_error_string(env, r, *src, prev);
- return r;
-}
-
-static int
-parse_char_property(Node** np, PToken* tok, UChar** src, UChar* end, ScanEnv* env)
-{
- int r, ctype;
- CClassNode* cc;
-
- ctype = fetch_char_property_to_ctype(src, end, env);
- if (ctype < 0) return ctype;
-
- *np = node_new_cclass();
- CHECK_NULL_RETURN_MEMERR(*np);
- cc = CCLASS_(*np);
- r = add_ctype_to_cc(cc, ctype, 0, env);
- if (r != 0) return r;
- if (tok->u.prop.not != 0) NCCLASS_SET_NOT(cc);
-
- return 0;
-}
-
-
-enum CCSTATE {
- CCS_VALUE,
- CCS_RANGE,
- CCS_COMPLETE,
- CCS_START
-};
-
-enum CCVALTYPE {
- CCV_SB,
- CCV_CODE_POINT,
- CCV_CLASS
-};
-
-static int
-next_state_class(CClassNode* cc, OnigCodePoint* vs, enum CCVALTYPE* type,
- enum CCSTATE* state, ScanEnv* env)
-{
- int r;
-
- if (*state == CCS_RANGE)
- return ONIGERR_CHAR_CLASS_VALUE_AT_END_OF_RANGE;
-
- if (*state == CCS_VALUE && *type != CCV_CLASS) {
- if (*type == CCV_SB)
- BITSET_SET_BIT(cc->bs, (int )(*vs));
- else if (*type == CCV_CODE_POINT) {
- r = add_code_range(&(cc->mbuf), env, *vs, *vs);
- if (r < 0) return r;
- }
- }
-
- *state = CCS_VALUE;
- *type = CCV_CLASS;
- return 0;
-}
-
-static int
-next_state_val(CClassNode* cc, OnigCodePoint *from, OnigCodePoint to,
- int* from_israw, int to_israw,
- enum CCVALTYPE intype, enum CCVALTYPE* type,
- enum CCSTATE* state, ScanEnv* env)
-{
- int r;
-
- switch (*state) {
- case CCS_VALUE:
- if (*type == CCV_SB) {
- if (*from > 0xff)
- return ONIGERR_INVALID_CODE_POINT_VALUE;
-
- BITSET_SET_BIT(cc->bs, (int )(*from));
- }
- else if (*type == CCV_CODE_POINT) {
- r = add_code_range(&(cc->mbuf), env, *from, *from);
- if (r < 0) return r;
- }
- break;
-
- case CCS_RANGE:
- if (intype == *type) {
- if (intype == CCV_SB) {
- if (*from > 0xff || to > 0xff)
- return ONIGERR_INVALID_CODE_POINT_VALUE;
-
- if (*from > to) {
- if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_EMPTY_RANGE_IN_CC))
- goto ccs_range_end;
- else
- return ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS;
- }
- bitset_set_range(cc->bs, (int )*from, (int )to);
- }
- else {
- r = add_code_range(&(cc->mbuf), env, *from, to);
- if (r < 0) return r;
- }
- }
- else {
- if (*from > to) {
- if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_EMPTY_RANGE_IN_CC))
- goto ccs_range_end;
- else
- return ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS;
- }
- bitset_set_range(cc->bs, (int )*from, (int )(to < 0xff ? to : 0xff));
- r = add_code_range(&(cc->mbuf), env, (OnigCodePoint )*from, to);
- if (r < 0) return r;
- }
- ccs_range_end:
- *state = CCS_COMPLETE;
- break;
-
- case CCS_COMPLETE:
- case CCS_START:
- *state = CCS_VALUE;
- break;
-
- default:
- break;
- }
-
- *from_israw = to_israw;
- *from = to;
- *type = intype;
- return 0;
-}
-
-static int
-code_exist_check(OnigCodePoint c, UChar* from, UChar* end, int ignore_escaped,
- ScanEnv* env)
-{
- int in_esc;
- OnigCodePoint code;
- OnigEncoding enc = env->enc;
- UChar* p = from;
-
- in_esc = 0;
- while (! PEND) {
- if (ignore_escaped && in_esc) {
- in_esc = 0;
- }
- else {
- PFETCH_S(code);
- if (code == c) return 1;
- if (code == MC_ESC(env->syntax)) in_esc = 1;
- }
- }
- return 0;
-}
-
-static int
-parse_char_class(Node** np, PToken* tok, UChar** src, UChar* end, ScanEnv* env)
-{
- int r, neg, len, fetched, and_start;
- OnigCodePoint v, vs;
- UChar *p;
- Node* node;
- CClassNode *cc, *prev_cc;
- CClassNode work_cc;
-
- enum CCSTATE state;
- enum CCVALTYPE val_type, in_type;
- int val_israw, in_israw;
-
- *np = NULL_NODE;
- env->parse_depth++;
- if (env->parse_depth > ParseDepthLimit)
- return ONIGERR_PARSE_DEPTH_LIMIT_OVER;
-
- prev_cc = (CClassNode* )NULL;
- r = fetch_token_in_cc(tok, src, end, env);
- if (r == TK_CHAR && tok->u.c == '^' && tok->escaped == 0) {
- neg = 1;
- r = fetch_token_in_cc(tok, src, end, env);
- }
- else {
- neg = 0;
- }
-
- if (r < 0) return r;
- if (r == TK_CC_CLOSE) {
- if (! code_exist_check((OnigCodePoint )']',
- *src, env->pattern_end, 1, env))
- return ONIGERR_EMPTY_CHAR_CLASS;
-
- CC_ESC_WARN(env, (UChar* )"]");
- r = tok->type = TK_CHAR; /* allow []...] */
- }
-
- *np = node = node_new_cclass();
- CHECK_NULL_RETURN_MEMERR(node);
- cc = CCLASS_(node);
-
- and_start = 0;
- state = CCS_START;
- p = *src;
- while (r != TK_CC_CLOSE) {
- fetched = 0;
- switch (r) {
- case TK_CHAR:
- any_char_in:
- len = ONIGENC_CODE_TO_MBCLEN(env->enc, tok->u.c);
- if (len > 1) {
- in_type = CCV_CODE_POINT;
- }
- else if (len < 0) {
- r = len;
- goto err;
- }
- else {
- /* sb_char: */
- in_type = CCV_SB;
- }
- v = (OnigCodePoint )tok->u.c;
- in_israw = 0;
- goto val_entry2;
- break;
-
- case TK_RAW_BYTE:
- /* tok->base != 0 : octal or hexadec. */
- if (! ONIGENC_IS_SINGLEBYTE(env->enc) && tok->base != 0) {
- int i, j;
- UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN];
- UChar* bufe = buf + ONIGENC_CODE_TO_MBC_MAXLEN;
- UChar* psave = p;
- int base = tok->base;
-
- buf[0] = tok->u.c;
- for (i = 1; i < ONIGENC_MBC_MAXLEN(env->enc); i++) {
- r = fetch_token_in_cc(tok, &p, end, env);
- if (r < 0) goto err;
- if (r != TK_RAW_BYTE || tok->base != base) {
- fetched = 1;
- break;
- }
- buf[i] = tok->u.c;
- }
-
- if (i < ONIGENC_MBC_MINLEN(env->enc)) {
- r = ONIGERR_TOO_SHORT_MULTI_BYTE_STRING;
- goto err;
- }
-
- /* clear buf tail */
- for (j = i; j < ONIGENC_CODE_TO_MBC_MAXLEN; j++) buf[j] = '\0';
-
- len = enclen(env->enc, buf);
- if (i < len) {
- r = ONIGERR_TOO_SHORT_MULTI_BYTE_STRING;
- goto err;
- }
- else if (i > len) { /* fetch back */
- p = psave;
- for (i = 1; i < len; i++) {
- r = fetch_token_in_cc(tok, &p, end, env);
- }
- fetched = 0;
- }
-
- if (i == 1) {
- v = (OnigCodePoint )buf[0];
- goto raw_single;
- }
- else {
- v = ONIGENC_MBC_TO_CODE(env->enc, buf, bufe);
- in_type = CCV_CODE_POINT;
- }
- }
- else {
- v = (OnigCodePoint )tok->u.c;
- raw_single:
- in_type = CCV_SB;
- }
- in_israw = 1;
- goto val_entry2;
- break;
-
- case TK_CODE_POINT:
- v = tok->u.code;
- in_israw = 1;
- val_entry:
- len = ONIGENC_CODE_TO_MBCLEN(env->enc, v);
- if (len < 0) {
- if (state != CCS_RANGE ||
- ! IS_SYNTAX_BV(env->syntax,
- ONIG_SYN_ALLOW_INVALID_CODE_END_OF_RANGE_IN_CC) ||
- v < 0x100 || ONIGENC_MBC_MAXLEN(env->enc) == 1) {
- r = len;
- goto err;
- }
- }
- in_type = (len == 1 ? CCV_SB : CCV_CODE_POINT);
- val_entry2:
- r = next_state_val(cc, &vs, v, &val_israw, in_israw, in_type, &val_type,
- &state, env);
- if (r != 0) goto err;
- break;
-
- case TK_POSIX_BRACKET_OPEN:
- r = parse_posix_bracket(cc, &p, end, env);
- if (r < 0) goto err;
- if (r == 1) { /* is not POSIX bracket */
- CC_ESC_WARN(env, (UChar* )"[");
- p = tok->backp;
- v = (OnigCodePoint )tok->u.c;
- in_israw = 0;
- goto val_entry;
- }
- goto next_class;
- break;
-
- case TK_CHAR_TYPE:
- r = add_ctype_to_cc(cc, tok->u.prop.ctype, tok->u.prop.not, env);
- if (r != 0) goto err;
-
- next_class:
- r = next_state_class(cc, &vs, &val_type, &state, env);
- if (r != 0) goto err;
- break;
-
- case TK_CHAR_PROPERTY:
- {
- int ctype = fetch_char_property_to_ctype(&p, end, env);
- if (ctype < 0) {
- r = ctype;
- goto err;
- }
- r = add_ctype_to_cc(cc, ctype, tok->u.prop.not, env);
- if (r != 0) goto err;
- goto next_class;
- }
- break;
-
- case TK_CC_RANGE:
- if (state == CCS_VALUE) {
- r = fetch_token_in_cc(tok, &p, end, env);
- if (r < 0) goto err;
- fetched = 1;
- if (r == TK_CC_CLOSE) { /* allow [x-] */
- range_end_val:
- v = (OnigCodePoint )'-';
- in_israw = 0;
- goto val_entry;
- }
- else if (r == TK_CC_AND) {
- CC_ESC_WARN(env, (UChar* )"-");
- goto range_end_val;
- }
-
- if (val_type == CCV_CLASS) {
- r = ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS;
- goto err;
- }
-
- state = CCS_RANGE;
- }
- else if (state == CCS_START) {
- /* [-xa] is allowed */
- v = (OnigCodePoint )tok->u.c;
- in_israw = 0;
-
- r = fetch_token_in_cc(tok, &p, end, env);
- if (r < 0) goto err;
- fetched = 1;
- /* [--x] or [a&&-x] is warned. */
- if (r == TK_CC_RANGE || and_start != 0)
- CC_ESC_WARN(env, (UChar* )"-");
-
- goto val_entry;
- }
- else if (state == CCS_RANGE) {
- CC_ESC_WARN(env, (UChar* )"-");
- goto any_char_in; /* [!--x] is allowed */
- }
- else { /* CCS_COMPLETE */
- r = fetch_token_in_cc(tok, &p, end, env);
- if (r < 0) goto err;
- fetched = 1;
- if (r == TK_CC_CLOSE) goto range_end_val; /* allow [a-b-] */
- else if (r == TK_CC_AND) {
- CC_ESC_WARN(env, (UChar* )"-");
- goto range_end_val;
- }
-
- if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_DOUBLE_RANGE_OP_IN_CC)) {
- CC_ESC_WARN(env, (UChar* )"-");
- goto range_end_val; /* [0-9-a] is allowed as [0-9\-a] */
- }
- r = ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS;
- goto err;
- }
- break;
-
- case TK_CC_CC_OPEN: /* [ */
- {
- Node *anode;
- CClassNode* acc;
-
- r = parse_char_class(&anode, tok, &p, end, env);
- if (r != 0) {
- onig_node_free(anode);
- goto cc_open_err;
- }
- acc = CCLASS_(anode);
- r = or_cclass(cc, acc, env->enc);
- onig_node_free(anode);
-
- cc_open_err:
- if (r != 0) goto err;
- }
- break;
-
- case TK_CC_AND: /* && */
- {
- if (state == CCS_VALUE) {
- r = next_state_val(cc, &vs, 0, &val_israw, 0, val_type,
- &val_type, &state, env);
- if (r != 0) goto err;
- }
- /* initialize local variables */
- and_start = 1;
- state = CCS_START;
-
- if (IS_NOT_NULL(prev_cc)) {
- r = and_cclass(prev_cc, cc, env->enc);
- if (r != 0) goto err;
- bbuf_free(cc->mbuf);
- }
- else {
- prev_cc = cc;
- cc = &work_cc;
- }
- initialize_cclass(cc);
- }
- break;
-
- case TK_EOT:
- r = ONIGERR_PREMATURE_END_OF_CHAR_CLASS;
- goto err;
- break;
- default:
- r = ONIGERR_PARSER_BUG;
- goto err;
- break;
- }
-
- if (fetched)
- r = tok->type;
- else {
- r = fetch_token_in_cc(tok, &p, end, env);
- if (r < 0) goto err;
- }
- }
-
- if (state == CCS_VALUE) {
- r = next_state_val(cc, &vs, 0, &val_israw, 0, val_type,
- &val_type, &state, env);
- if (r != 0) goto err;
- }
-
- if (IS_NOT_NULL(prev_cc)) {
- r = and_cclass(prev_cc, cc, env->enc);
- if (r != 0) goto err;
- bbuf_free(cc->mbuf);
- cc = prev_cc;
- }
-
- if (neg != 0)
- NCCLASS_SET_NOT(cc);
- else
- NCCLASS_CLEAR_NOT(cc);
- if (IS_NCCLASS_NOT(cc) &&
- IS_SYNTAX_BV(env->syntax, ONIG_SYN_NOT_NEWLINE_IN_NEGATIVE_CC)) {
- int is_empty = (IS_NULL(cc->mbuf) ? 1 : 0);
- if (is_empty != 0)
- BITSET_IS_EMPTY(cc->bs, is_empty);
-
- if (is_empty == 0) {
-#define NEWLINE_CODE 0x0a
-
- if (ONIGENC_IS_CODE_NEWLINE(env->enc, NEWLINE_CODE)) {
- if (ONIGENC_CODE_TO_MBCLEN(env->enc, NEWLINE_CODE) == 1)
- BITSET_SET_BIT(cc->bs, NEWLINE_CODE);
- else
- add_code_range(&(cc->mbuf), env, NEWLINE_CODE, NEWLINE_CODE);
- }
- }
- }
- *src = p;
- env->parse_depth--;
- return 0;
-
- err:
- if (cc != CCLASS_(*np))
- bbuf_free(cc->mbuf);
- return r;
-}
-
-static int parse_subexp(Node** top, PToken* tok, int term,
- UChar** src, UChar* end, ScanEnv* env, int group_head);
-
-#ifdef USE_CALLOUT
-
-/* (?{...}[tag][+-]) (?{{...}}[tag][+-]) */
-static int
-parse_callout_of_contents(Node** np, int cterm, UChar** src, UChar* end, ScanEnv* env)
-{
- int r;
- int i;
- int in;
- int num;
- OnigCodePoint c;
- UChar* code_start;
- UChar* code_end;
- UChar* contents;
- UChar* tag_start;
- UChar* tag_end;
- int brace_nest;
- CalloutListEntry* e;
- RegexExt* ext;
- OnigEncoding enc = env->enc;
- UChar* p = *src;
-
- if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
-
- brace_nest = 0;
- while (PPEEK_IS('{')) {
- brace_nest++;
- PINC_S;
- if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
- }
-
- in = ONIG_CALLOUT_IN_PROGRESS;
- code_start = p;
- while (1) {
- if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
-
- code_end = p;
- PFETCH_S(c);
- if (c == '}') {
- i = brace_nest;
- while (i > 0) {
- if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
- PFETCH_S(c);
- if (c == '}') i--;
- else break;
- }
- if (i == 0) break;
- }
- }
-
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
-
- PFETCH_S(c);
- if (c == '[') {
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- tag_end = tag_start = p;
- while (! PEND) {
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- tag_end = p;
- PFETCH_S(c);
- if (c == ']') break;
- }
- if (! is_allowed_callout_tag_name(enc, tag_start, tag_end))
- return ONIGERR_INVALID_CALLOUT_TAG_NAME;
-
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- PFETCH_S(c);
- }
- else {
- tag_start = tag_end = 0;
- }
-
- if (c == 'X') {
- in |= ONIG_CALLOUT_IN_RETRACTION;
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- PFETCH_S(c);
- }
- else if (c == '<') {
- in = ONIG_CALLOUT_IN_RETRACTION;
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- PFETCH_S(c);
- }
- else if (c == '>') { /* no needs (default) */
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- PFETCH_S(c);
- }
-
- if (c != cterm)
- return ONIGERR_INVALID_CALLOUT_PATTERN;
-
- r = reg_callout_list_entry(env, &num);
- if (r != 0) return r;
-
- ext = onig_get_regex_ext(env->reg);
- CHECK_NULL_RETURN_MEMERR(ext);
- if (IS_NULL(ext->pattern)) {
- r = onig_ext_set_pattern(env->reg, env->pattern, env->pattern_end);
- if (r != ONIG_NORMAL) return r;
- }
-
- if (tag_start != tag_end) {
- r = callout_tag_entry(env, env->reg, tag_start, tag_end, num);
- if (r != ONIG_NORMAL) return r;
- }
-
- contents = onigenc_strdup(enc, code_start, code_end);
- CHECK_NULL_RETURN_MEMERR(contents);
-
- r = node_new_callout(np, ONIG_CALLOUT_OF_CONTENTS, num, ONIG_NON_NAME_ID, env);
- if (r != 0) {
- xfree(contents);
- return r;
- }
-
- e = onig_reg_callout_list_at(env->reg, num);
- if (IS_NULL(e)) {
- xfree(contents);
- return ONIGERR_MEMORY;
- }
-
- e->of = ONIG_CALLOUT_OF_CONTENTS;
- e->in = in;
- e->name_id = ONIG_NON_NAME_ID;
- e->u.content.start = contents;
- e->u.content.end = contents + (code_end - code_start);
-
- *src = p;
- return 0;
-}
-
-static long
-parse_long(OnigEncoding enc, UChar* s, UChar* end, int sign_on, long max, long* rl)
-{
- long v;
- long d;
- int flag;
- UChar* p;
- OnigCodePoint c;
-
- if (s >= end) return ONIGERR_INVALID_CALLOUT_ARG;
-
- flag = 1;
- v = 0;
- p = s;
- while (p < end) {
- c = ONIGENC_MBC_TO_CODE(enc, p, end);
- p += ONIGENC_MBC_ENC_LEN(enc, p);
- if (c >= '0' && c <= '9') {
- d = (long )(c - '0');
- if (v > (max - d) / 10)
- return ONIGERR_INVALID_CALLOUT_ARG;
-
- v = v * 10 + d;
- }
- else if (sign_on != 0 && (c == '-' || c == '+')) {
- if (c == '-') flag = -1;
- }
- else
- return ONIGERR_INVALID_CALLOUT_ARG;
-
- sign_on = 0;
- }
-
- *rl = flag * v;
- return ONIG_NORMAL;
-}
-
-static int
-parse_callout_args(int skip_mode, int cterm, UChar** src, UChar* end,
- unsigned int types[], OnigValue vals[], ScanEnv* env)
-{
-#define MAX_CALLOUT_ARG_BYTE_LENGTH 128
-
- int r;
- int n;
- int esc;
- int cn;
- UChar* s;
- UChar* e;
- UChar* eesc;
- OnigCodePoint c;
- UChar* bufend;
- UChar buf[MAX_CALLOUT_ARG_BYTE_LENGTH];
- OnigEncoding enc = env->enc;
- UChar* p = *src;
-
- if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
-
- n = 0;
- while (n < ONIG_CALLOUT_MAX_ARGS_NUM) {
- c = 0;
- cn = 0;
- esc = 0;
- eesc = 0;
- bufend = buf;
- s = e = p;
- while (1) {
- if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
-
- e = p;
- PFETCH_S(c);
- if (esc != 0) {
- esc = 0;
- if (c == '\\' || c == cterm || c == ',') {
- /* */
- }
- else {
- e = eesc;
- cn++;
- }
- goto add_char;
- }
- else {
- if (c == '\\') {
- esc = 1;
- eesc = e;
- }
- else if (c == cterm || c == ',')
- break;
- else {
- size_t clen;
-
- add_char:
- if (skip_mode == 0) {
- clen = p - e;
- if (bufend + clen > buf + MAX_CALLOUT_ARG_BYTE_LENGTH)
- return ONIGERR_INVALID_CALLOUT_ARG; /* too long argument */
-
- xmemcpy(bufend, e, clen);
- bufend += clen;
- }
- cn++;
- }
- }
- }
-
- if (cn != 0) {
- if (skip_mode == 0) {
- if ((types[n] & ONIG_TYPE_LONG) != 0) {
- int fixed = 0;
- if (cn > 0) {
- long rl;
- r = parse_long(enc, buf, bufend, 1, LONG_MAX, &rl);
- if (r == ONIG_NORMAL) {
- vals[n].l = rl;
- fixed = 1;
- types[n] = ONIG_TYPE_LONG;
- }
- }
-
- if (fixed == 0) {
- types[n] = (types[n] & ~ONIG_TYPE_LONG);
- if (types[n] == ONIG_TYPE_VOID)
- return ONIGERR_INVALID_CALLOUT_ARG;
- }
- }
-
- switch (types[n]) {
- case ONIG_TYPE_LONG:
- break;
-
- case ONIG_TYPE_CHAR:
- if (cn != 1) return ONIGERR_INVALID_CALLOUT_ARG;
- vals[n].c = ONIGENC_MBC_TO_CODE(enc, buf, bufend);
- break;
-
- case ONIG_TYPE_STRING:
- {
- UChar* rs = onigenc_strdup(enc, buf, bufend);
- CHECK_NULL_RETURN_MEMERR(rs);
- vals[n].s.start = rs;
- vals[n].s.end = rs + (e - s);
- }
- break;
-
- case ONIG_TYPE_TAG:
- if (eesc != 0 || ! is_allowed_callout_tag_name(enc, s, e))
- return ONIGERR_INVALID_CALLOUT_TAG_NAME;
-
- vals[n].s.start = s;
- vals[n].s.end = e;
- break;
-
- case ONIG_TYPE_VOID:
- case ONIG_TYPE_POINTER:
- return ONIGERR_PARSER_BUG;
- break;
- }
- }
-
- n++;
- }
-
- if (c == cterm) break;
- }
-
- if (c != cterm) return ONIGERR_INVALID_CALLOUT_PATTERN;
-
- *src = p;
- return n;
-}
-
-/* (*name[TAG]) (*name[TAG]{a,b,..}) */
-static int
-parse_callout_of_name(Node** np, int cterm, UChar** src, UChar* end, ScanEnv* env)
-{
- int r;
- int i;
- int in;
- int num;
- int name_id;
- int arg_num;
- int max_arg_num;
- int opt_arg_num;
- int is_not_single;
- OnigCodePoint c;
- UChar* name_start;
- UChar* name_end;
- UChar* tag_start;
- UChar* tag_end;
- Node* node;
- CalloutListEntry* e;
- RegexExt* ext;
- unsigned int types[ONIG_CALLOUT_MAX_ARGS_NUM];
- OnigValue vals[ONIG_CALLOUT_MAX_ARGS_NUM];
- OnigEncoding enc = env->enc;
- UChar* p = *src;
-
- /* PFETCH_READY; */
- if (PEND) return ONIGERR_INVALID_CALLOUT_PATTERN;
-
- node = 0;
- name_start = p;
- while (1) {
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- name_end = p;
- PFETCH_S(c);
- if (c == cterm || c == '[' || c == '{') break;
- }
-
- if (! is_allowed_callout_name(enc, name_start, name_end))
- return ONIGERR_INVALID_CALLOUT_NAME;
-
- if (c == '[') {
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- tag_end = tag_start = p;
- while (! PEND) {
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- tag_end = p;
- PFETCH_S(c);
- if (c == ']') break;
- }
- if (! is_allowed_callout_tag_name(enc, tag_start, tag_end))
- return ONIGERR_INVALID_CALLOUT_TAG_NAME;
-
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- PFETCH_S(c);
- }
- else {
- tag_start = tag_end = 0;
- }
-
- if (c == '{') {
- UChar* save;
-
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
-
- /* read for single check only */
- save = p;
- arg_num = parse_callout_args(1, '}', &p, end, 0, 0, env);
- if (arg_num < 0) return arg_num;
-
- is_not_single = PPEEK_IS(cterm) ? 0 : 1;
- p = save;
- r = get_callout_name_id_by_name(enc, is_not_single, name_start, name_end,
- &name_id);
- if (r != ONIG_NORMAL) return r;
-
- max_arg_num = get_callout_arg_num_by_name_id(name_id);
- for (i = 0; i < max_arg_num; i++) {
- types[i] = get_callout_arg_type_by_name_id(name_id, i);
- }
-
- arg_num = parse_callout_args(0, '}', &p, end, types, vals, env);
- if (arg_num < 0) return arg_num;
-
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- PFETCH_S(c);
- }
- else {
- arg_num = 0;
-
- is_not_single = 0;
- r = get_callout_name_id_by_name(enc, is_not_single, name_start, name_end,
- &name_id);
- if (r != ONIG_NORMAL) return r;
-
- max_arg_num = get_callout_arg_num_by_name_id(name_id);
- for (i = 0; i < max_arg_num; i++) {
- types[i] = get_callout_arg_type_by_name_id(name_id, i);
- }
- }
-
- in = onig_get_callout_in_by_name_id(name_id);
- opt_arg_num = get_callout_opt_arg_num_by_name_id(name_id);
- if (arg_num > max_arg_num || arg_num < (max_arg_num - opt_arg_num))
- return ONIGERR_INVALID_CALLOUT_ARG;
-
- if (c != cterm)
- return ONIGERR_INVALID_CALLOUT_PATTERN;
-
- r = reg_callout_list_entry(env, &num);
- if (r != 0) return r;
-
- ext = onig_get_regex_ext(env->reg);
- CHECK_NULL_RETURN_MEMERR(ext);
- if (IS_NULL(ext->pattern)) {
- r = onig_ext_set_pattern(env->reg, env->pattern, env->pattern_end);
- if (r != ONIG_NORMAL) return r;
- }
-
- if (tag_start != tag_end) {
- r = callout_tag_entry(env, env->reg, tag_start, tag_end, num);
- if (r != ONIG_NORMAL) return r;
- }
-
- r = node_new_callout(&node, ONIG_CALLOUT_OF_NAME, num, name_id, env);
- if (r != ONIG_NORMAL) return r;
-
- e = onig_reg_callout_list_at(env->reg, num);
- CHECK_NULL_RETURN_MEMERR(e);
-
- e->of = ONIG_CALLOUT_OF_NAME;
- e->in = in;
- e->name_id = name_id;
- e->type = onig_get_callout_type_by_name_id(name_id);
- e->start_func = onig_get_callout_start_func_by_name_id(name_id);
- e->end_func = onig_get_callout_end_func_by_name_id(name_id);
- e->u.arg.num = max_arg_num;
- e->u.arg.passed_num = arg_num;
- for (i = 0; i < max_arg_num; i++) {
- e->u.arg.types[i] = types[i];
- if (i < arg_num)
- e->u.arg.vals[i] = vals[i];
- else
- e->u.arg.vals[i] = get_callout_opt_default_by_name_id(name_id, i);
- }
-
- *np = node;
- *src = p;
- return 0;
-}
-#endif
-
-static int
-parse_bag(Node** np, PToken* tok, int term, UChar** src, UChar* end,
- ScanEnv* env)
-{
- int r, num;
- Node *target;
- OnigOptionType option;
- OnigCodePoint c;
- int list_capture;
- OnigEncoding enc = env->enc;
-
- UChar* p = *src;
- PFETCH_READY;
-
- *np = NULL;
- if (PEND) return ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS;
-
- option = env->options;
- c = PPEEK;
- if (c == '?' && IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_GROUP_EFFECT)) {
- PINC;
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
-
- PFETCH(c);
- switch (c) {
- case ':': /* (?:...) grouping only */
- group:
- r = fetch_token(tok, &p, end, env);
- if (r < 0) return r;
- r = parse_subexp(np, tok, term, &p, end, env, 0);
- if (r < 0) return r;
- *src = p;
- return 1; /* group */
- break;
-
- case '=':
- *np = onig_node_new_anchor(ANCR_PREC_READ, 0);
- break;
- case '!': /* preceding read */
- *np = onig_node_new_anchor(ANCR_PREC_READ_NOT, 0);
- break;
- case '>': /* (?>...) stop backtrack */
- *np = node_new_bag(BAG_STOP_BACKTRACK);
- break;
-
- case '\'':
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP)) {
- goto named_group1;
- }
- else
- return ONIGERR_UNDEFINED_GROUP_OPTION;
- break;
-
- case '<': /* look behind (?<=...), (?<!...) */
- if (PEND) return ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS;
- PFETCH(c);
- if (c == '=')
- *np = onig_node_new_anchor(ANCR_LOOK_BEHIND, 0);
- else if (c == '!')
- *np = onig_node_new_anchor(ANCR_LOOK_BEHIND_NOT, 0);
- else {
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP)) {
- UChar *name;
- UChar *name_end;
- enum REF_NUM num_type;
-
- PUNFETCH;
- c = '<';
-
- named_group1:
- list_capture = 0;
-
- named_group2:
- name = p;
- r = fetch_name((OnigCodePoint )c, &p, end, &name_end, env, &num,
- &num_type, 0);
- if (r < 0) return r;
-
- num = scan_env_add_mem_entry(env);
- if (num < 0) return num;
- if (list_capture != 0 && num >= (int )MEM_STATUS_BITS_NUM)
- return ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY;
-
- r = name_add(env->reg, name, name_end, num, env);
- if (r != 0) return r;
- *np = node_new_memory(1);
- CHECK_NULL_RETURN_MEMERR(*np);
- BAG_(*np)->m.regnum = num;
- if (list_capture != 0)
- MEM_STATUS_ON_SIMPLE(env->capture_history, num);
- env->num_named++;
- }
- else {
- return ONIGERR_UNDEFINED_GROUP_OPTION;
- }
- }
- break;
-
- case '~':
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_TILDE_ABSENT_GROUP)) {
- Node* absent;
- Node* expr;
- int head_bar;
- int is_range_cutter;
-
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
-
- if (PPEEK_IS('|')) { /* (?~|generator|absent) */
- PINC;
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
-
- head_bar = 1;
- if (PPEEK_IS(')')) { /* (?~|) : range clear */
- PINC;
- r = make_range_clear(np, env);
- if (r != 0) return r;
- goto end;
- }
- }
- else
- head_bar = 0;
-
- r = fetch_token(tok, &p, end, env);
- if (r < 0) return r;
- r = parse_subexp(&absent, tok, term, &p, end, env, 1);
- if (r < 0) {
- onig_node_free(absent);
- return r;
- }
-
- expr = NULL_NODE;
- is_range_cutter = 0;
- if (head_bar != 0) {
- Node* top = absent;
- if (NODE_TYPE(top) != NODE_ALT || IS_NULL(NODE_CDR(top))) {
- expr = NULL_NODE;
- is_range_cutter = 1;
- /* return ONIGERR_INVALID_ABSENT_GROUP_GENERATOR_PATTERN; */
- }
- else {
- absent = NODE_CAR(top);
- expr = NODE_CDR(top);
- NODE_CAR(top) = NULL_NODE;
- NODE_CDR(top) = NULL_NODE;
- onig_node_free(top);
- if (IS_NULL(NODE_CDR(expr))) {
- top = expr;
- expr = NODE_CAR(top);
- NODE_CAR(top) = NULL_NODE;
- onig_node_free(top);
- }
- }
- }
-
- r = make_absent_tree(np, absent, expr, is_range_cutter, env);
- if (r != 0) {
- return r;
- }
- goto end;
- }
- else {
- return ONIGERR_UNDEFINED_GROUP_OPTION;
- }
- break;
-
-#ifdef USE_CALLOUT
- case '{':
- if (! IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_BRACE_CALLOUT_CONTENTS))
- return ONIGERR_UNDEFINED_GROUP_OPTION;
-
- r = parse_callout_of_contents(np, ')', &p, end, env);
- if (r != 0) return r;
-
- goto end;
- break;
-#endif
-
- case '(':
- /* (?()...) */
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LPAREN_IF_ELSE)) {
- UChar *prev;
- Node* condition;
- int condition_is_checker;
-
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- PFETCH(c);
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
-
- if (IS_CODE_DIGIT_ASCII(enc, c)
- || c == '-' || c == '+' || c == '<' || c == '\'') {
- UChar* name_end;
- int back_num;
- int exist_level;
- int level;
- enum REF_NUM num_type;
- int is_enclosed;
-
- is_enclosed = (c == '<' || c == '\'') ? 1 : 0;
- if (! is_enclosed)
- PUNFETCH;
- prev = p;
- exist_level = 0;
-#ifdef USE_BACKREF_WITH_LEVEL
- name_end = NULL_UCHARP; /* no need. escape gcc warning. */
- r = fetch_name_with_level(
- (OnigCodePoint )(is_enclosed != 0 ? c : '('),
- &p, end, &name_end,
- env, &back_num, &level, &num_type);
- if (r == 1) exist_level = 1;
-#else
- r = fetch_name((OnigCodePoint )(is_enclosed != 0 ? c : '('),
- &p, end, &name_end, env, &back_num, &num_type, 1);
-#endif
- if (r < 0) {
- if (is_enclosed == 0) {
- goto any_condition;
- }
- else
- return r;
- }
-
- condition_is_checker = 1;
- if (num_type != IS_NOT_NUM) {
- if (num_type == IS_REL_NUM) {
- back_num = backref_rel_to_abs(back_num, env);
- }
- if (back_num <= 0)
- return ONIGERR_INVALID_BACKREF;
-
- if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_STRICT_CHECK_BACKREF)) {
- if (back_num > env->num_mem ||
- IS_NULL(SCANENV_MEMENV(env)[back_num].node))
- return ONIGERR_INVALID_BACKREF;
- }
-
- condition = node_new_backref_checker(1, &back_num, 0,
-#ifdef USE_BACKREF_WITH_LEVEL
- exist_level, level,
-#endif
- env);
- }
- else {
- int num;
- int* backs;
-
- num = name_to_group_numbers(env, prev, name_end, &backs);
- if (num <= 0) {
- return ONIGERR_UNDEFINED_NAME_REFERENCE;
- }
- if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_STRICT_CHECK_BACKREF)) {
- int i;
- for (i = 0; i < num; i++) {
- if (backs[i] > env->num_mem ||
- IS_NULL(SCANENV_MEMENV(env)[backs[i]].node))
- return ONIGERR_INVALID_BACKREF;
- }
- }
-
- condition = node_new_backref_checker(num, backs, 1,
-#ifdef USE_BACKREF_WITH_LEVEL
- exist_level, level,
-#endif
- env);
- }
-
- if (is_enclosed != 0) {
- if (PEND) goto err_if_else;
- PFETCH(c);
- if (c != ')') goto err_if_else;
- }
- }
-#ifdef USE_CALLOUT
- else if (c == '?') {
- if (IS_SYNTAX_OP2(env->syntax,
- ONIG_SYN_OP2_QMARK_BRACE_CALLOUT_CONTENTS)) {
- if (! PEND && PPEEK_IS('{')) {
- /* condition part is callouts of contents: (?(?{...})THEN|ELSE) */
- condition_is_checker = 0;
- PFETCH(c);
- r = parse_callout_of_contents(&condition, ')', &p, end, env);
- if (r != 0) return r;
- goto end_condition;
- }
- }
- goto any_condition;
- }
- else if (c == '*' &&
- IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ASTERISK_CALLOUT_NAME)) {
- condition_is_checker = 0;
- r = parse_callout_of_name(&condition, ')', &p, end, env);
- if (r != 0) return r;
- goto end_condition;
- }
-#endif
- else {
- any_condition:
- PUNFETCH;
- condition_is_checker = 0;
- r = fetch_token(tok, &p, end, env);
- if (r < 0) return r;
- r = parse_subexp(&condition, tok, term, &p, end, env, 0);
- if (r < 0) {
- onig_node_free(condition);
- return r;
- }
- }
-
-#ifdef USE_CALLOUT
- end_condition:
-#endif
- CHECK_NULL_RETURN_MEMERR(condition);
-
- if (PEND) {
- err_if_else:
- onig_node_free(condition);
- return ONIGERR_END_PATTERN_IN_GROUP;
- }
-
- if (PPEEK_IS(')')) { /* case: empty body: make backref checker */
- if (condition_is_checker == 0) {
- onig_node_free(condition);
- return ONIGERR_INVALID_IF_ELSE_SYNTAX;
- }
- PFETCH(c);
- *np = condition;
- }
- else { /* if-else */
- int then_is_empty;
- Node *Then, *Else;
-
- Then = 0;
- if (PPEEK_IS('|')) {
- PFETCH(c);
- then_is_empty = 1;
- }
- else
- then_is_empty = 0;
-
- r = fetch_token(tok, &p, end, env);
- if (r < 0) {
- onig_node_free(condition);
- return r;
- }
- r = parse_subexp(&target, tok, term, &p, end, env, 1);
- if (r < 0) {
- onig_node_free(condition);
- onig_node_free(target);
- return r;
- }
-
- if (then_is_empty != 0) {
- Else = target;
- }
- else {
- if (NODE_TYPE(target) == NODE_ALT) {
- Then = NODE_CAR(target);
- if (NODE_CDR(NODE_CDR(target)) == NULL_NODE) {
- Else = NODE_CAR(NODE_CDR(target));
- cons_node_free_alone(NODE_CDR(target));
- }
- else {
- Else = NODE_CDR(target);
- }
- cons_node_free_alone(target);
- }
- else {
- Then = target;
- Else = 0;
- }
- }
-
- *np = node_new_bag_if_else(condition, Then, Else);
- if (IS_NULL(*np)) {
- onig_node_free(condition);
- onig_node_free(Then);
- onig_node_free(Else);
- return ONIGERR_MEMORY;
- }
- }
- goto end;
- }
- else {
- return ONIGERR_UNDEFINED_GROUP_OPTION;
- }
- break;
-
-#ifdef USE_CAPTURE_HISTORY
- case '@':
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ATMARK_CAPTURE_HISTORY)) {
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP)) {
- PFETCH(c);
- if (c == '<' || c == '\'') {
- list_capture = 1;
- goto named_group2; /* (?@<name>...) */
- }
- PUNFETCH;
- }
-
- *np = node_new_memory(0);
- CHECK_NULL_RETURN_MEMERR(*np);
- num = scan_env_add_mem_entry(env);
- if (num < 0) {
- return num;
- }
- else if (num >= (int )MEM_STATUS_BITS_NUM) {
- return ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY;
- }
- BAG_(*np)->m.regnum = num;
- MEM_STATUS_ON_SIMPLE(env->capture_history, num);
- }
- else {
- return ONIGERR_UNDEFINED_GROUP_OPTION;
- }
- break;
-#endif
-
-#ifdef USE_POSIXLINE_OPTION
- case 'p':
-#endif
- case '-': case 'i': case 'm': case 's': case 'x':
- case 'W': case 'D': case 'S': case 'P':
- case 'y':
- {
- int neg = 0;
-
- while (1) {
- switch (c) {
- case ':':
- case ')':
- break;
-
- case '-': neg = 1; break;
- case 'x': OPTION_NEGATE(option, ONIG_OPTION_EXTEND, neg); break;
- case 'i': OPTION_NEGATE(option, ONIG_OPTION_IGNORECASE, neg); break;
- case 's':
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_PERL)) {
- OPTION_NEGATE(option, ONIG_OPTION_MULTILINE, neg);
- }
- else
- return ONIGERR_UNDEFINED_GROUP_OPTION;
- break;
-
- case 'm':
- if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_PERL)) {
- OPTION_NEGATE(option, ONIG_OPTION_SINGLELINE, (neg == 0 ? 1 : 0));
- }
- else if (IS_SYNTAX_OP2(env->syntax,
- ONIG_SYN_OP2_OPTION_ONIGURUMA|ONIG_SYN_OP2_OPTION_RUBY)) {
- OPTION_NEGATE(option, ONIG_OPTION_MULTILINE, neg);
- }
- else
- return ONIGERR_UNDEFINED_GROUP_OPTION;
- break;
-#ifdef USE_POSIXLINE_OPTION
- case 'p':
- OPTION_NEGATE(option, ONIG_OPTION_MULTILINE|ONIG_OPTION_SINGLELINE, neg);
- break;
-#endif
- case 'W': OPTION_NEGATE(option, ONIG_OPTION_WORD_IS_ASCII, neg); break;
- case 'D': OPTION_NEGATE(option, ONIG_OPTION_DIGIT_IS_ASCII, neg); break;
- case 'S': OPTION_NEGATE(option, ONIG_OPTION_SPACE_IS_ASCII, neg); break;
- case 'P': OPTION_NEGATE(option, ONIG_OPTION_POSIX_IS_ASCII, neg); break;
-
- case 'y': /* y{g}, y{w} */
- {
- if (! IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_ONIGURUMA))
- return ONIGERR_UNDEFINED_GROUP_OPTION;
-
- if (neg != 0) return ONIGERR_UNDEFINED_GROUP_OPTION;
-
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- if (! PPEEK_IS('{')) return ONIGERR_UNDEFINED_GROUP_OPTION;
- PFETCH(c);
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- PFETCH(c);
- switch (c) {
- case 'g':
- if (! ONIGENC_IS_UNICODE_ENCODING(enc))
- return ONIGERR_UNDEFINED_GROUP_OPTION;
-
- OPTION_NEGATE(option, ONIG_OPTION_TEXT_SEGMENT_EXTENDED_GRAPHEME_CLUSTER, 0);
- OPTION_NEGATE(option, ONIG_OPTION_TEXT_SEGMENT_WORD, 1);
- break;
-#ifdef USE_UNICODE_WORD_BREAK
- case 'w':
- if (! ONIGENC_IS_UNICODE_ENCODING(enc))
- return ONIGERR_UNDEFINED_GROUP_OPTION;
-
- OPTION_NEGATE(option, ONIG_OPTION_TEXT_SEGMENT_WORD, 0);
- OPTION_NEGATE(option, ONIG_OPTION_TEXT_SEGMENT_EXTENDED_GRAPHEME_CLUSTER, 1);
- break;
-#endif
- default:
- return ONIGERR_UNDEFINED_GROUP_OPTION;
- break;
- }
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- PFETCH(c);
- if (c != '}')
- return ONIGERR_UNDEFINED_GROUP_OPTION;
- break;
- } /* case 'y' */
-
- default:
- return ONIGERR_UNDEFINED_GROUP_OPTION;
- }
-
- if (c == ')') {
- *np = node_new_option(option);
- CHECK_NULL_RETURN_MEMERR(*np);
- *src = p;
- return 2; /* option only */
- }
- else if (c == ':') {
- OnigOptionType prev = env->options;
-
- env->options = option;
- r = fetch_token(tok, &p, end, env);
- if (r < 0) return r;
- r = parse_subexp(&target, tok, term, &p, end, env, 0);
- env->options = prev;
- if (r < 0) {
- onig_node_free(target);
- return r;
- }
- *np = node_new_option(option);
- CHECK_NULL_RETURN_MEMERR(*np);
- NODE_BODY(*np) = target;
- *src = p;
- return 0;
- }
-
- if (PEND) return ONIGERR_END_PATTERN_IN_GROUP;
- PFETCH(c);
- } /* while (1) */
- }
- break;
-
- default:
- return ONIGERR_UNDEFINED_GROUP_OPTION;
- }
- }
-#ifdef USE_CALLOUT
- else if (c == '*' &&
- IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ASTERISK_CALLOUT_NAME)) {
- PINC;
- r = parse_callout_of_name(np, ')', &p, end, env);
- if (r != 0) return r;
-
- goto end;
- }
-#endif
- else {
- if (ONIG_IS_OPTION_ON(env->options, ONIG_OPTION_DONT_CAPTURE_GROUP))
- goto group;
-
- *np = node_new_memory(0);
- CHECK_NULL_RETURN_MEMERR(*np);
- num = scan_env_add_mem_entry(env);
- if (num < 0) return num;
- BAG_(*np)->m.regnum = num;
- }
-
- CHECK_NULL_RETURN_MEMERR(*np);
- r = fetch_token(tok, &p, end, env);
- if (r < 0) return r;
- r = parse_subexp(&target, tok, term, &p, end, env, 0);
- if (r < 0) {
- onig_node_free(target);
- return r;
- }
-
- NODE_BODY(*np) = target;
-
- if (NODE_TYPE(*np) == NODE_BAG) {
- if (BAG_(*np)->type == BAG_MEMORY) {
- /* Don't move this to previous of parse_subexp() */
- r = scan_env_set_mem_node(env, BAG_(*np)->m.regnum, *np);
- if (r != 0) return r;
- }
- }
-
- end:
- *src = p;
- return 0;
-}
-
-static const char* PopularQStr[] = {
- "?", "*", "+", "??", "*?", "+?"
-};
-
-static const char* ReduceQStr[] = {
- "", "", "*", "*?", "??", "+ and ??", "+? and ?"
-};
-
-static int
-set_quantifier(Node* qnode, Node* target, int group, ScanEnv* env)
-{
- QuantNode* qn;
-
- qn = QUANT_(qnode);
- if (qn->lower == 1 && qn->upper == 1)
- return 1;
-
- switch (NODE_TYPE(target)) {
- case NODE_STRING:
- if (group == 0) {
- if (str_node_can_be_split(target, env->enc)) {
- Node* n = str_node_split_last_char(target, env->enc);
- if (IS_NOT_NULL(n)) {
- NODE_BODY(qnode) = n;
- return 2;
- }
- }
- }
- break;
-
- case NODE_QUANT:
- { /* check redundant double repeat. */
- /* verbose warn (?:.?)? etc... but not warn (.?)? etc... */
- QuantNode* qnt = QUANT_(target);
- int nestq_num = quantifier_type_num(qn);
- int targetq_num = quantifier_type_num(qnt);
-
-#ifdef USE_WARNING_REDUNDANT_NESTED_REPEAT_OPERATOR
- if (targetq_num >= 0 && nestq_num >= 0 &&
- IS_SYNTAX_BV(env->syntax, ONIG_SYN_WARN_REDUNDANT_NESTED_REPEAT)) {
- UChar buf[WARN_BUFSIZE];
-
- switch(ReduceTypeTable[targetq_num][nestq_num]) {
- case RQ_ASIS:
- break;
-
- case RQ_DEL:
- if (onig_verb_warn != onig_null_warn) {
- onig_snprintf_with_pattern(buf, WARN_BUFSIZE, env->enc,
- env->pattern, env->pattern_end,
- (UChar* )"redundant nested repeat operator");
- (*onig_verb_warn)((char* )buf);
- }
- goto warn_exit;
- break;
-
- default:
- if (onig_verb_warn != onig_null_warn) {
- onig_snprintf_with_pattern(buf, WARN_BUFSIZE, env->enc,
- env->pattern, env->pattern_end,
- (UChar* )"nested repeat operator %s and %s was replaced with '%s'",
- PopularQStr[targetq_num], PopularQStr[nestq_num],
- ReduceQStr[ReduceTypeTable[targetq_num][nestq_num]]);
- (*onig_verb_warn)((char* )buf);
- }
- goto warn_exit;
- break;
- }
- }
-
- warn_exit:
-#endif
- if (targetq_num >= 0 && nestq_num < 0) {
- if (targetq_num == 1 || targetq_num == 2) { /* * or + */
- /* (?:a*){n,m}, (?:a+){n,m} => (?:a*){n,n}, (?:a+){n,n} */
- if (! IS_INFINITE_REPEAT(qn->upper) && qn->upper > 1 && qn->greedy) {
- qn->upper = (qn->lower == 0 ? 1 : qn->lower);
- }
- }
- }
- else {
- NODE_BODY(qnode) = target;
- onig_reduce_nested_quantifier(qnode, target);
- goto q_exit;
- }
- }
- break;
-
- default:
- break;
- }
-
- NODE_BODY(qnode) = target;
- q_exit:
- return 0;
-}
-
-
-#ifndef CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS
-static int
-clear_not_flag_cclass(CClassNode* cc, OnigEncoding enc)
-{
- BBuf *tbuf;
- int r;
-
- if (IS_NCCLASS_NOT(cc)) {
- bitset_invert(cc->bs);
-
- if (! ONIGENC_IS_SINGLEBYTE(enc)) {
- r = not_code_range_buf(enc, cc->mbuf, &tbuf);
- if (r != 0) return r;
-
- bbuf_free(cc->mbuf);
- cc->mbuf = tbuf;
- }
-
- NCCLASS_CLEAR_NOT(cc);
- }
-
- return 0;
-}
-#endif /* CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS */
-
-typedef struct {
- ScanEnv* env;
- CClassNode* cc;
- Node* alt_root;
- Node** ptail;
-} IApplyCaseFoldArg;
-
-static int
-i_apply_case_fold(OnigCodePoint from, OnigCodePoint to[], int to_len, void* arg)
-{
- IApplyCaseFoldArg* iarg;
- ScanEnv* env;
- CClassNode* cc;
- BitSetRef bs;
-
- iarg = (IApplyCaseFoldArg* )arg;
- env = iarg->env;
- cc = iarg->cc;
- bs = cc->bs;
-
- if (to_len == 1) {
- int is_in = onig_is_code_in_cc(env->enc, from, cc);
-#ifdef CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS
- if ((is_in != 0 && !IS_NCCLASS_NOT(cc)) ||
- (is_in == 0 && IS_NCCLASS_NOT(cc))) {
- if (ONIGENC_MBC_MINLEN(env->enc) > 1 || *to >= SINGLE_BYTE_SIZE) {
- add_code_range(&(cc->mbuf), env, *to, *to);
- }
- else {
- BITSET_SET_BIT(bs, *to);
- }
- }
-#else
- if (is_in != 0) {
- if (ONIGENC_MBC_MINLEN(env->enc) > 1 || *to >= SINGLE_BYTE_SIZE) {
- if (IS_NCCLASS_NOT(cc)) clear_not_flag_cclass(cc, env->enc);
- add_code_range(&(cc->mbuf), env, *to, *to);
- }
- else {
- if (IS_NCCLASS_NOT(cc)) {
- BITSET_CLEAR_BIT(bs, *to);
- }
- else
- BITSET_SET_BIT(bs, *to);
- }
- }
-#endif /* CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS */
- }
- else {
- int r, i, len;
- UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN];
- Node *snode = NULL_NODE;
-
- if (onig_is_code_in_cc(env->enc, from, cc)
-#ifdef CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS
- && !IS_NCCLASS_NOT(cc)
-#endif
- ) {
- for (i = 0; i < to_len; i++) {
- len = ONIGENC_CODE_TO_MBC(env->enc, to[i], buf);
- if (i == 0) {
- snode = onig_node_new_str(buf, buf + len);
- CHECK_NULL_RETURN_MEMERR(snode);
-
- /* char-class expanded multi-char only
- compare with string folded at match time. */
- NODE_STRING_SET_AMBIG(snode);
- }
- else {
- r = onig_node_str_cat(snode, buf, buf + len);
- if (r < 0) {
- onig_node_free(snode);
- return r;
- }
- }
- }
-
- *(iarg->ptail) = onig_node_new_alt(snode, NULL_NODE);
- CHECK_NULL_RETURN_MEMERR(*(iarg->ptail));
- iarg->ptail = &(NODE_CDR((*(iarg->ptail))));
- }
- }
-
- return 0;
-}
-
-static int
-parse_exp(Node** np, PToken* tok, int term, UChar** src, UChar* end,
- ScanEnv* env, int group_head)
-{
- int r, len, group;
- Node* qn;
- Node** tp;
- unsigned int parse_depth;
-
- group = 0;
- *np = NULL;
- if (tok->type == (enum TokenSyms )term)
- goto end_of_token;
-
- parse_depth = env->parse_depth;
-
- switch (tok->type) {
- case TK_ALT:
- case TK_EOT:
- end_of_token:
- *np = node_new_empty();
- CHECK_NULL_RETURN_MEMERR(*np);
- return tok->type;
- break;
-
- case TK_SUBEXP_OPEN:
- r = parse_bag(np, tok, TK_SUBEXP_CLOSE, src, end, env);
- if (r < 0) return r;
- if (r == 1) { /* group */
- if (group_head == 0)
- group = 1;
- else {
- Node* target = *np;
- *np = node_new_group(target);
- if (IS_NULL(*np)) {
- onig_node_free(target);
- return ONIGERR_MEMORY;
- }
- group = 2;
- }
- }
- else if (r == 2) { /* option only */
- Node* target;
- OnigOptionType prev = env->options;
-
- env->options = BAG_(*np)->o.options;
- r = fetch_token(tok, src, end, env);
- if (r < 0) return r;
- r = parse_subexp(&target, tok, term, src, end, env, 0);
- env->options = prev;
- if (r < 0) {
- onig_node_free(target);
- return r;
- }
- NODE_BODY(*np) = target;
- return tok->type;
- }
- break;
-
- case TK_SUBEXP_CLOSE:
- if (! IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_UNMATCHED_CLOSE_SUBEXP))
- return ONIGERR_UNMATCHED_CLOSE_PARENTHESIS;
-
- if (tok->escaped) goto tk_raw_byte;
- else goto tk_byte;
- break;
-
- case TK_STRING:
- tk_byte:
- {
- *np = node_new_str(tok->backp, *src);
- CHECK_NULL_RETURN_MEMERR(*np);
-
- while (1) {
- r = fetch_token(tok, src, end, env);
- if (r < 0) return r;
- if (r != TK_STRING) break;
-
- r = onig_node_str_cat(*np, tok->backp, *src);
- if (r < 0) return r;
- }
-
- string_end:
- tp = np;
- goto repeat;
- }
- break;
-
- case TK_RAW_BYTE:
- tk_raw_byte:
- {
- *np = node_new_str_raw_char((UChar )tok->u.c);
- CHECK_NULL_RETURN_MEMERR(*np);
- len = 1;
- while (1) {
- if (len >= ONIGENC_MBC_MINLEN(env->enc)) {
- if (len == enclen(env->enc, STR_(*np)->s)) {
- r = fetch_token(tok, src, end, env);
- goto tk_raw_byte_end;
- }
- }
-
- r = fetch_token(tok, src, end, env);
- if (r < 0) return r;
- if (r != TK_RAW_BYTE)
- return ONIGERR_TOO_SHORT_MULTI_BYTE_STRING;
-
- r = node_str_cat_char(*np, (UChar )tok->u.c);
- if (r < 0) return r;
-
- len++;
- }
-
- tk_raw_byte_end:
- if (! ONIGENC_IS_VALID_MBC_STRING(env->enc, STR_(*np)->s, STR_(*np)->end))
- return ONIGERR_INVALID_WIDE_CHAR_VALUE;
-
- NODE_STRING_CLEAR_RAW(*np);
- goto string_end;
- }
- break;
-
- case TK_CODE_POINT:
- {
- UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN];
- len = ONIGENC_CODE_TO_MBC(env->enc, tok->u.code, buf);
- if (len < 0) return len;
-#ifdef NUMBERED_CHAR_IS_NOT_CASE_AMBIG
- *np = node_new_str_raw(buf, buf + len);
-#else
- *np = node_new_str(buf, buf + len);
-#endif
- CHECK_NULL_RETURN_MEMERR(*np);
- }
- break;
-
- case TK_QUOTE_OPEN:
- {
- OnigCodePoint end_op[2];
- UChar *qstart, *qend, *nextp;
-
- end_op[0] = (OnigCodePoint )MC_ESC(env->syntax);
- end_op[1] = (OnigCodePoint )'E';
- qstart = *src;
- qend = find_str_position(end_op, 2, qstart, end, &nextp, env->enc);
- if (IS_NULL(qend)) {
- nextp = qend = end;
- }
- *np = node_new_str(qstart, qend);
- CHECK_NULL_RETURN_MEMERR(*np);
- *src = nextp;
- }
- break;
-
- case TK_CHAR_TYPE:
- {
- switch (tok->u.prop.ctype) {
- case ONIGENC_CTYPE_WORD:
- *np = node_new_ctype(tok->u.prop.ctype, tok->u.prop.not, env->options);
- CHECK_NULL_RETURN_MEMERR(*np);
- break;
-
- case ONIGENC_CTYPE_SPACE:
- case ONIGENC_CTYPE_DIGIT:
- case ONIGENC_CTYPE_XDIGIT:
- {
- CClassNode* cc;
-
- *np = node_new_cclass();
- CHECK_NULL_RETURN_MEMERR(*np);
- cc = CCLASS_(*np);
- add_ctype_to_cc(cc, tok->u.prop.ctype, 0, env);
- if (tok->u.prop.not != 0) NCCLASS_SET_NOT(cc);
- }
- break;
-
- default:
- return ONIGERR_PARSER_BUG;
- break;
- }
- }
- break;
-
- case TK_CHAR_PROPERTY:
- r = parse_char_property(np, tok, src, end, env);
- if (r != 0) return r;
- break;
-
- case TK_CC_OPEN:
- {
- CClassNode* cc;
-
- r = parse_char_class(np, tok, src, end, env);
- if (r != 0) return r;
-
- cc = CCLASS_(*np);
- if (IS_IGNORECASE(env->options)) {
- IApplyCaseFoldArg iarg;
-
- iarg.env = env;
- iarg.cc = cc;
- iarg.alt_root = NULL_NODE;
- iarg.ptail = &(iarg.alt_root);
-
- r = ONIGENC_APPLY_ALL_CASE_FOLD(env->enc, env->case_fold_flag,
- i_apply_case_fold, &iarg);
- if (r != 0) {
- onig_node_free(iarg.alt_root);
- return r;
- }
- if (IS_NOT_NULL(iarg.alt_root)) {
- Node* work = onig_node_new_alt(*np, iarg.alt_root);
- if (IS_NULL(work)) {
- onig_node_free(iarg.alt_root);
- return ONIGERR_MEMORY;
- }
- *np = work;
- }
- }
- }
- break;
-
- case TK_ANYCHAR:
- *np = node_new_anychar();
- CHECK_NULL_RETURN_MEMERR(*np);
- break;
-
- case TK_ANYCHAR_ANYTIME:
- *np = node_new_anychar();
- CHECK_NULL_RETURN_MEMERR(*np);
- qn = node_new_quantifier(0, INFINITE_REPEAT, 0);
- CHECK_NULL_RETURN_MEMERR(qn);
- NODE_BODY(qn) = *np;
- *np = qn;
- break;
-
- case TK_BACKREF:
- len = tok->u.backref.num;
- *np = node_new_backref(len,
- (len > 1 ? tok->u.backref.refs : &(tok->u.backref.ref1)),
- tok->u.backref.by_name,
-#ifdef USE_BACKREF_WITH_LEVEL
- tok->u.backref.exist_level,
- tok->u.backref.level,
-#endif
- env);
- CHECK_NULL_RETURN_MEMERR(*np);
- break;
-
-#ifdef USE_CALL
- case TK_CALL:
- {
- int gnum = tok->u.call.gnum;
-
- *np = node_new_call(tok->u.call.name, tok->u.call.name_end,
- gnum, tok->u.call.by_number);
- CHECK_NULL_RETURN_MEMERR(*np);
- env->num_call++;
- if (tok->u.call.by_number != 0 && gnum == 0) {
- env->has_call_zero = 1;
- }
- }
- break;
-#endif
-
- case TK_ANCHOR:
- {
- int ascii_mode =
- IS_WORD_ASCII(env->options) && IS_WORD_ANCHOR_TYPE(tok->u.anchor) ? 1 : 0;
- *np = onig_node_new_anchor(tok->u.anchor, ascii_mode);
- CHECK_NULL_RETURN_MEMERR(*np);
- }
- break;
-
- case TK_REPEAT:
- case TK_INTERVAL:
- if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_CONTEXT_INDEP_REPEAT_OPS)) {
- if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_CONTEXT_INVALID_REPEAT_OPS))
- return ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED;
- else {
- *np = node_new_empty();
- CHECK_NULL_RETURN_MEMERR(*np);
- }
- }
- else {
- goto tk_byte;
- }
- break;
-
- case TK_KEEP:
- r = node_new_keep(np, env);
- if (r < 0) return r;
- break;
-
- case TK_GENERAL_NEWLINE:
- r = node_new_general_newline(np, env);
- if (r < 0) return r;
- break;
-
- case TK_NO_NEWLINE:
- r = node_new_no_newline(np, env);
- if (r < 0) return r;
- break;
-
- case TK_TRUE_ANYCHAR:
- r = node_new_true_anychar(np, env);
- if (r < 0) return r;
- break;
-
- case TK_TEXT_SEGMENT:
- r = make_text_segment(np, env);
- if (r < 0) return r;
- break;
-
- default:
- return ONIGERR_PARSER_BUG;
- break;
- }
-
- {
- tp = np;
-
- re_entry:
- r = fetch_token(tok, src, end, env);
- if (r < 0) return r;
-
- repeat:
- if (r == TK_REPEAT || r == TK_INTERVAL) {
- Node* target;
-
- if (is_invalid_quantifier_target(*tp))
- return ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID;
-
- parse_depth++;
- if (parse_depth > ParseDepthLimit)
- return ONIGERR_PARSE_DEPTH_LIMIT_OVER;
-
- qn = node_new_quantifier(tok->u.repeat.lower, tok->u.repeat.upper,
- r == TK_INTERVAL);
- CHECK_NULL_RETURN_MEMERR(qn);
- QUANT_(qn)->greedy = tok->u.repeat.greedy;
- if (group == 2) {
- target = node_drop_group(*tp);
- *tp = NULL_NODE;
- }
- else {
- target = *tp;
- }
- r = set_quantifier(qn, target, group, env);
- if (r < 0) {
- onig_node_free(qn);
- return r;
- }
-
- if (tok->u.repeat.possessive != 0) {
- Node* en;
- en = node_new_bag(BAG_STOP_BACKTRACK);
- if (IS_NULL(en)) {
- onig_node_free(qn);
- return ONIGERR_MEMORY;
- }
- NODE_BODY(en) = qn;
- qn = en;
- }
-
- if (r == 0) {
- *tp = qn;
- }
- else if (r == 1) { /* x{1,1} ==> x */
- onig_node_free(qn);
- *tp = target;
- }
- else if (r == 2) { /* split case: /abc+/ */
- Node *tmp;
-
- *tp = node_new_list(*tp, NULL);
- if (IS_NULL(*tp)) {
- onig_node_free(qn);
- return ONIGERR_MEMORY;
- }
- tmp = NODE_CDR(*tp) = node_new_list(qn, NULL);
- if (IS_NULL(tmp)) {
- onig_node_free(qn);
- return ONIGERR_MEMORY;
- }
- tp = &(NODE_CAR(tmp));
- }
- group = 0;
- goto re_entry;
- }
- }
-
- return r;
-}
-
-static int
-parse_branch(Node** top, PToken* tok, int term, UChar** src, UChar* end,
- ScanEnv* env, int group_head)
-{
- int r;
- Node *node, **headp;
-
- *top = NULL;
- r = parse_exp(&node, tok, term, src, end, env, group_head);
- if (r < 0) {
- onig_node_free(node);
- return r;
- }
-
- if (r == TK_EOT || r == term || r == TK_ALT) {
- *top = node;
- }
- else {
- *top = node_new_list(node, NULL);
- if (IS_NULL(*top)) {
- onig_node_free(node);
- return ONIGERR_MEMORY;
- }
-
- headp = &(NODE_CDR(*top));
- while (r != TK_EOT && r != term && r != TK_ALT) {
- r = parse_exp(&node, tok, term, src, end, env, 0);
- if (r < 0) {
- onig_node_free(node);
- return r;
- }
-
- if (NODE_TYPE(node) == NODE_LIST) {
- *headp = node;
- while (IS_NOT_NULL(NODE_CDR(node))) node = NODE_CDR(node);
- headp = &(NODE_CDR(node));
- }
- else {
- *headp = node_new_list(node, NULL);
- headp = &(NODE_CDR(*headp));
- }
- }
- }
-
- return r;
-}
-
-/* term_tok: TK_EOT or TK_SUBEXP_CLOSE */
-static int
-parse_subexp(Node** top, PToken* tok, int term, UChar** src, UChar* end,
- ScanEnv* env, int group_head)
-{
- int r;
- Node *node, **headp;
-
- *top = NULL;
- env->parse_depth++;
- if (env->parse_depth > ParseDepthLimit)
- return ONIGERR_PARSE_DEPTH_LIMIT_OVER;
-
- r = parse_branch(&node, tok, term, src, end, env, group_head);
- if (r < 0) {
- onig_node_free(node);
- return r;
- }
-
- if (r == term) {
- *top = node;
- }
- else if (r == TK_ALT) {
- *top = onig_node_new_alt(node, NULL);
- if (IS_NULL(*top)) {
- onig_node_free(node);
- return ONIGERR_MEMORY;
- }
-
- headp = &(NODE_CDR(*top));
- while (r == TK_ALT) {
- r = fetch_token(tok, src, end, env);
- if (r < 0) return r;
- r = parse_branch(&node, tok, term, src, end, env, 0);
- if (r < 0) {
- onig_node_free(node);
- return r;
- }
- *headp = onig_node_new_alt(node, NULL);
- if (IS_NULL(*headp)) {
- onig_node_free(node);
- onig_node_free(*top);
- return ONIGERR_MEMORY;
- }
-
- headp = &(NODE_CDR(*headp));
- }
-
- if (tok->type != (enum TokenSyms )term)
- goto err;
- }
- else {
- onig_node_free(node);
- err:
- if (term == TK_SUBEXP_CLOSE)
- return ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS;
- else
- return ONIGERR_PARSER_BUG;
- }
-
- env->parse_depth--;
- return r;
-}
-
-static int
-parse_regexp(Node** top, UChar** src, UChar* end, ScanEnv* env)
-{
- int r;
- PToken tok;
-
- r = fetch_token(&tok, src, end, env);
- if (r < 0) return r;
- r = parse_subexp(top, &tok, TK_EOT, src, end, env, 0);
- if (r < 0) return r;
-
- return 0;
-}
-
-#ifdef USE_CALL
-static int
-make_call_zero_body(Node* node, ScanEnv* env, Node** rnode)
-{
- int r;
-
- Node* x = node_new_memory(0 /* 0: is not named */);
- CHECK_NULL_RETURN_MEMERR(x);
-
- NODE_BODY(x) = node;
- BAG_(x)->m.regnum = 0;
- r = scan_env_set_mem_node(env, 0, x);
- if (r != 0) {
- onig_node_free(x);
- return r;
- }
-
- *rnode = x;
- return 0;
-}
-#endif
-
-extern int
-onig_parse_tree(Node** root, const UChar* pattern, const UChar* end,
- regex_t* reg, ScanEnv* env)
-{
- int r;
- UChar* p;
-#ifdef USE_CALLOUT
- RegexExt* ext;
-#endif
-
- names_clear(reg);
-
- scan_env_clear(env);
- env->options = reg->options;
- env->case_fold_flag = reg->case_fold_flag;
- env->enc = reg->enc;
- env->syntax = reg->syntax;
- env->pattern = (UChar* )pattern;
- env->pattern_end = (UChar* )end;
- env->reg = reg;
-
- *root = NULL;
-
- if (! ONIGENC_IS_VALID_MBC_STRING(env->enc, pattern, end))
- return ONIGERR_INVALID_WIDE_CHAR_VALUE;
-
- p = (UChar* )pattern;
- r = parse_regexp(root, &p, (UChar* )end, env);
-
-#ifdef USE_CALL
- if (r != 0) return r;
-
- if (env->has_call_zero != 0) {
- Node* zero_node;
- r = make_call_zero_body(*root, env, &zero_node);
- if (r != 0) return r;
-
- *root = zero_node;
- }
-#endif
-
- reg->num_mem = env->num_mem;
-
-#ifdef USE_CALLOUT
- ext = reg->extp;
- if (IS_NOT_NULL(ext) && ext->callout_num > 0) {
- r = setup_ext_callout_list_values(reg);
- }
-#endif
-
- return r;
-}
-
-extern void
-onig_scan_env_set_error_string(ScanEnv* env, int ecode ARG_UNUSED,
- UChar* arg, UChar* arg_end)
-{
- env->error = arg;
- env->error_end = arg_end;
-}
|