diff options
Diffstat (limited to 'regparse.c')
| -rw-r--r-- | regparse.c | 4448 |
1 files changed, 2976 insertions, 1472 deletions
diff --git a/regparse.c b/regparse.c index 092ba614c3..123b3015a5 100644 --- a/regparse.c +++ b/regparse.c @@ -1,8 +1,9 @@ /********************************************************************** - regparse.c - Oniguruma (regular expression library) + regparse.c - Onigmo (Oniguruma-mod) (regular expression library) **********************************************************************/ /*- - * Copyright (c) 2002-2007 K.Kosako <sndgk393 AT ybb DOT ne DOT jp> + * Copyright (c) 2002-2008 K.Kosako <sndgk393 AT ybb DOT ne DOT jp> + * Copyright (c) 2011-2019 K.Takata <kentkt AT csc DOT jp> * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -27,11 +28,23 @@ * SUCH DAMAGE. */ +// Suppress some false-positive compiler warnings +#if defined(__GNUC__) && __GNUC__ >= 12 +#pragma GCC diagnostic ignored "-Warray-bounds" +#pragma GCC diagnostic ignored "-Wstringop-overflow" +#pragma GCC diagnostic ignored "-Wrestrict" +#endif + #include "regparse.h" +#include <stdarg.h> +#include "internal/sanitizers.h" #define WARN_BUFSIZE 256 -OnigSyntaxType OnigSyntaxRuby = { +#define CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS + + +const 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_CONTROL_CHARS | @@ -46,16 +59,26 @@ OnigSyntaxType OnigSyntaxRuby = { 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 ) - , ( SYN_GNU_REGEX_BV | + ONIG_SYN_OP2_ESC_H_XDIGIT | +#ifndef RUBY + ONIG_SYN_OP2_ESC_U_HEX4 | +#endif + ONIG_SYN_OP2_ESC_CAPITAL_X_EXTENDED_GRAPHEME_CLUSTER | + ONIG_SYN_OP2_QMARK_LPAREN_CONDITION | + ONIG_SYN_OP2_ESC_CAPITAL_R_LINEBREAK | + ONIG_SYN_OP2_ESC_CAPITAL_K_KEEP | + ONIG_SYN_OP2_QMARK_TILDE_ABSENT ) + , ( 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_CC_DUP | ONIG_SYN_WARN_REDUNDANT_NESTED_REPEAT ) - , ONIG_OPTION_NONE + , ( ONIG_OPTION_ASCII_RANGE | ONIG_OPTION_POSIX_BRACKET_ALL_RANGE | + ONIG_OPTION_WORD_BOUND_ALL_RANGE ) , { (OnigCodePoint )'\\' /* esc */ @@ -67,9 +90,9 @@ OnigSyntaxType OnigSyntaxRuby = { } }; -OnigSyntaxType* OnigDefaultSyntax = ONIG_SYNTAX_RUBY; +const OnigSyntaxType* OnigDefaultSyntax = ONIG_SYNTAX_RUBY; -extern void onig_null_warn(const char* s) { } +extern void onig_null_warn(const char* s ARG_UNUSED) { } #ifdef DEFAULT_WARN_FUNCTION static OnigWarnFunc onig_warn = (OnigWarnFunc )DEFAULT_WARN_FUNCTION; @@ -93,11 +116,33 @@ extern void onig_set_verb_warn_func(OnigWarnFunc f) onig_verb_warn = f; } +static void CC_DUP_WARN(ScanEnv *env, OnigCodePoint from, OnigCodePoint to); + + +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 void bbuf_free(BBuf* bbuf) { if (IS_NOT_NULL(bbuf)) { - if (IS_NOT_NULL(bbuf->p)) xfree(bbuf->p); + xfree(bbuf->p); xfree(bbuf); } } @@ -117,13 +162,16 @@ bbuf_clone(BBuf** rto, BBuf* from) return 0; } +#define BACKREF_REL_TO_ABS(rel_no, env) \ + ((env)->num_mem + 1 + (rel_no)) + #define ONOFF(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)) + add_code_range_to_buf(pbuf, env, MBCODE_START_POS(enc), ONIG_LAST_CODE_POINT) #define ADD_ALL_MULTI_BYTE_RANGE(enc, mbuf) do {\ if (! ONIGENC_IS_SINGLEBYTE(enc)) {\ @@ -133,6 +181,11 @@ bbuf_clone(BBuf** rto, BBuf* from) } while (0) +#define BITSET_SET_BIT_CHKDUP(bs, pos) do { \ + if (BITSET_AT(bs, pos)) CC_DUP_WARN(env, pos, pos); \ + BS_ROOM(bs, pos) |= BS_BIT(pos); \ +} while (0) + #define BITSET_IS_EMPTY(bs,empty) do {\ int i;\ empty = 1;\ @@ -144,11 +197,11 @@ bbuf_clone(BBuf** rto, BBuf* from) } while (0) static void -bitset_set_range(BitSetRef bs, int from, int to) +bitset_set_range(ScanEnv *env, BitSetRef bs, int from, int to) { int i; for (i = from; i <= to && i < SINGLE_BYTE_SIZE; i++) { - BITSET_SET_BIT(bs, i); + BITSET_SET_BIT_CHKDUP(bs, i); } } @@ -196,8 +249,9 @@ bitset_copy(BitSetRef dest, BitSetRef bs) for (i = 0; i < BITSET_SIZE; i++) { dest[i] = bs[i]; } } +#if defined(USE_NAMED_GROUP) && !defined(USE_ST_LIBRARY) extern int -onig_strncmp(const UChar* s1, const UChar* s2, int n) +onig_strncmp(const UChar* s1, const UChar* s2, size_t n) { int x; @@ -207,21 +261,24 @@ onig_strncmp(const UChar* s1, const UChar* s2, int n) } return 0; } +#endif extern void onig_strcpy(UChar* dest, const UChar* src, const UChar* end) { - int len = end - src; + ptrdiff_t len = end - src; if (len > 0) { xmemcpy(dest, src, len); dest[len] = (UChar )0; } } +#ifdef USE_NAMED_GROUP static UChar* -strdup_with_null(OnigEncoding enc, UChar* s, UChar* end) +strdup_with_null(OnigEncoding enc, const UChar* s, const UChar* end) { - int slen, term_len, i; + ptrdiff_t slen; + int term_len, i; UChar *r; slen = end - s; @@ -236,22 +293,35 @@ strdup_with_null(OnigEncoding enc, UChar* s, UChar* end) return r; } - +#endif /* scan pattern methods */ #define PEND_VALUE 0 -#define PFETCH_READY UChar* pfetch_prev +#ifdef __GNUC__ +/* get rid of Wunused-but-set-variable and Wuninitialized */ +# define PFETCH_READY UChar* pfetch_prev = NULL; (void)pfetch_prev +#else +# define PFETCH_READY UChar* pfetch_prev +#endif #define PEND (p < end ? 0 : 1) #define PUNFETCH p = pfetch_prev #define PINC do { \ pfetch_prev = p; \ - p += ONIGENC_MBC_ENC_LEN(enc, p, end); \ + p += enclen(enc, p, end); \ } while (0) #define PFETCH(c) do { \ - c = ONIGENC_MBC_TO_CODE(enc, p, end); \ + c = ((enc->max_enc_len == 1) ? *p : ONIGENC_MBC_TO_CODE(enc, p, end)); \ pfetch_prev = p; \ - p += ONIGENC_MBC_ENC_LEN(enc, p, end); \ + p += enclen(enc, p, end); \ +} while (0) + +#define PINC_S do { \ + p += enclen(enc, p, end); \ +} while (0) +#define PFETCH_S(c) do { \ + c = ((enc->max_enc_len == 1) ? *p : ONIGENC_MBC_TO_CODE(enc, p, end)); \ + p += enclen(enc, p, end); \ } while (0) #define PPEEK (p < end ? ONIGENC_MBC_TO_CODE(enc, p, end) : PEND_VALUE) @@ -259,7 +329,7 @@ strdup_with_null(OnigEncoding enc, UChar* s, UChar* end) static UChar* strcat_capa(UChar* dest, UChar* dest_end, const UChar* src, const UChar* src_end, - int capa) + size_t capa) { UChar* r; @@ -276,7 +346,7 @@ strcat_capa(UChar* dest, UChar* dest_end, const UChar* src, const UChar* src_end /* dest on static area */ static UChar* strcat_capa_from_static(UChar* dest, UChar* dest_end, - const UChar* src, const UChar* src_end, int capa) + const UChar* src, const UChar* src_end, size_t capa) { UChar* r; @@ -287,34 +357,29 @@ strcat_capa_from_static(UChar* dest, UChar* dest_end, return r; } -#ifdef USE_NAMED_GROUP - -#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 -#include "ruby/st.h" +# ifdef RUBY +# include "ruby/st.h" +# else +# include "st.h" +# endif typedef struct { - unsigned char* s; - unsigned char* end; -} st_strend_key; + const UChar* s; + const UChar* end; +} st_str_end_key; static int -str_end_cmp(st_strend_key* x, st_strend_key* y) +str_end_cmp(st_data_t xp, st_data_t yp) { - unsigned char *p, *q; + const st_str_end_key *x, *y; + const UChar *p, *q; int c; + x = (const st_str_end_key *)xp; + y = (const st_str_end_key *)yp; if ((x->end - x->s) != (y->end - y->s)) return 1; @@ -330,11 +395,14 @@ str_end_cmp(st_strend_key* x, st_strend_key* y) return 0; } -static int -str_end_hash(st_strend_key* x) +NO_SANITIZE("unsigned-integer-overflow", static st_index_t str_end_hash(st_data_t xp)); + +static st_index_t +str_end_hash(st_data_t xp) { - UChar *p; - int val = 0; + const st_str_end_key *x = (const st_str_end_key *)xp; + const UChar *p; + st_index_t val = 0; p = x->s; while (p < x->end) { @@ -345,9 +413,9 @@ str_end_hash(st_strend_key* x) } extern hash_table_type* -onig_st_init_strend_table_with_size(int size) +onig_st_init_strend_table_with_size(st_index_t size) { - static struct st_hash_type hashType = { + static const struct st_hash_type hashType = { str_end_cmp, str_end_hash, }; @@ -358,9 +426,9 @@ onig_st_init_strend_table_with_size(int size) extern int onig_st_lookup_strend(hash_table_type* table, const UChar* str_key, - const UChar* end_key, hash_data_type *value) + const UChar* end_key, hash_data_type *value) { - st_strend_key key; + st_str_end_key key; key.s = (UChar* )str_key; key.end = (UChar* )end_key; @@ -370,12 +438,12 @@ onig_st_lookup_strend(hash_table_type* table, const UChar* str_key, extern int onig_st_insert_strend(hash_table_type* table, const UChar* str_key, - const UChar* end_key, hash_data_type value) + const UChar* end_key, hash_data_type value) { - st_strend_key* key; + st_str_end_key* key; int result; - key = (st_strend_key* )xmalloc(sizeof(st_strend_key)); + key = (st_str_end_key* )xmalloc(sizeof(st_str_end_key)); key->s = (UChar* )str_key; key->end = (UChar* )end_key; result = onig_st_insert(table, (st_data_t )key, value); @@ -385,17 +453,33 @@ onig_st_insert_strend(hash_table_type* table, const UChar* str_key, return result; } +#endif /* USE_ST_LIBRARY */ + + +#ifdef USE_NAMED_GROUP + +# define INIT_NAME_BACKREFS_ALLOC_NUM 8 + +typedef struct { + UChar* name; + size_t name_len; /* byte length */ + int back_num; /* number of backrefs */ + int back_alloc; + int back_ref1; + int* back_refs; +} NameEntry; + +# ifdef USE_ST_LIBRARY 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 +# ifdef ONIG_DEBUG static int -i_print_name_entry(UChar* key, NameEntry* e, void* arg) +i_print_name_entry(HashDataType key_, HashDataType e_, HashDataType arg_) { + NameEntry* e = (NameEntry *)e_; + void* arg = (void *)arg_; int i; FILE* fp = (FILE* )arg; @@ -426,13 +510,15 @@ onig_print_names(FILE* fp, regex_t* reg) } return 0; } -#endif +# endif /* ONIG_DEBUG */ static int -i_free_name_entry(UChar* key, NameEntry* e, void* arg) +i_free_name_entry(HashDataType key_, HashDataType e_, HashDataType arg_ ARG_UNUSED) { + UChar* key = (UChar *)key_; + NameEntry* e = (NameEntry *)e_; xfree(e->name); - if (IS_NOT_NULL(e->back_refs)) xfree(e->back_refs); + xfree(e->back_refs); xfree(key); xfree(e); return ST_DELETE; @@ -464,6 +550,58 @@ onig_names_free(regex_t* reg) return 0; } +static int +copy_named_captures_iter(const OnigUChar *name, const OnigUChar *name_end, + int back_num, int *back_refs, OnigRegex regex, void *arg) +{ + NameTable *copy_table = (NameTable *)arg; + NameEntry *entry_copy = (NameEntry* )xmalloc(sizeof(NameEntry)); + if (IS_NULL(entry_copy)) return -1; + + entry_copy->name_len = name_end - name; + entry_copy->back_num = back_num; + entry_copy->back_alloc = back_num; + entry_copy->back_ref1 = back_refs[0]; + entry_copy->back_refs = xmalloc(back_num * (sizeof(int*))); + if (IS_NULL(entry_copy->back_refs)) { + xfree(entry_copy); + return -1; + } + memcpy(entry_copy->back_refs, back_refs, back_num * sizeof(back_refs[0])); + + UChar *new_name = strdup_with_null(regex->enc, name, name_end); + if (IS_NULL(new_name)) { + xfree(entry_copy->back_refs); + xfree(entry_copy); + return -1; + } + entry_copy->name = new_name; + + if (onig_st_insert_strend(copy_table, new_name, (new_name + entry_copy->name_len), (hash_data_type)entry_copy)) { + xfree(entry_copy->name); + xfree(entry_copy->back_refs); + xfree(entry_copy); + return -1; + } + return 0; +} + +extern int +onig_names_copy(regex_t* reg, regex_t* oreg) +{ + NameTable* table = oreg->name_table; + if (table) { + NameTable * t = onig_st_init_strend_table_with_size(onig_number_of_names(oreg)); + CHECK_NULL_RETURN_MEMERR(t); + if (onig_foreach_name(oreg, copy_named_captures_iter, (void*)t)) { + onig_st_free_table(t); + return ONIGERR_MEMORY; + } + reg->name_table = t; + } + return 0; +} + static NameEntry* name_find(regex_t* reg, const UChar* name, const UChar* name_end) { @@ -486,13 +624,15 @@ typedef struct { } INamesArg; static int -i_names(UChar* key, NameEntry* e, INamesArg* arg) +i_names(HashDataType key_ ARG_UNUSED, HashDataType e_, HashDataType arg_) { + NameEntry* e = (NameEntry *)e_; + INamesArg* arg = (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); + (e->back_num > 1 ? e->back_refs : &(e->back_ref1)), + arg->reg, arg->arg); if (r != 0) { arg->ret = r; return ST_STOP; @@ -519,8 +659,10 @@ onig_foreach_name(regex_t* reg, } static int -i_renumber_name(UChar* key, NameEntry* e, GroupNumRemap* map) +i_renumber_name(HashDataType key_ ARG_UNUSED, HashDataType e_, HashDataType map_) { + NameEntry* e = (NameEntry *)e_; + GroupNumRemap* map = (GroupNumRemap *)map_; int i; if (e->back_num > 1) { @@ -548,19 +690,19 @@ onig_renumber_name_table(regex_t* reg, GroupNumRemap* map) extern int -onig_number_of_names(regex_t* reg) +onig_number_of_names(const regex_t* reg) { NameTable* t = (NameTable* )reg->name_table; if (IS_NOT_NULL(t)) - return t->num_entries; + return (int )t->num_entries; else return 0; } -#else /* USE_ST_LIBRARY */ +# else /* USE_ST_LIBRARY */ -#define INIT_NAMES_ALLOC_NUM 8 +# define INIT_NAMES_ALLOC_NUM 8 typedef struct { NameEntry* e; @@ -568,7 +710,7 @@ typedef struct { int alloc; } NameTable; -#ifdef ONIG_DEBUG +# ifdef ONIG_DEBUG extern int onig_print_names(FILE* fp, regex_t* reg) { @@ -582,16 +724,16 @@ onig_print_names(FILE* fp, regex_t* reg) e = &(t->e[i]); fprintf(fp, "%s: ", e->name); if (e->back_num == 0) { - fputs("-", fp); + fputs("-", fp); } else if (e->back_num == 1) { - fprintf(fp, "%d", e->back_ref1); + 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]); - } + for (j = 0; j < e->back_num; j++) { + if (j > 0) fprintf(fp, ", "); + fprintf(fp, "%d", e->back_refs[j]); + } } fputs("\n", fp); } @@ -599,7 +741,7 @@ onig_print_names(FILE* fp, regex_t* reg) } return 0; } -#endif +# endif static int names_clear(regex_t* reg) @@ -612,19 +754,18 @@ names_clear(regex_t* reg) 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; + xfree(e->name); + e->name = NULL; + e->name_len = 0; + e->back_num = 0; + e->back_alloc = 0; + xfree(e->back_refs); + e->back_refs = (int* )NULL; } } - if (IS_NOT_NULL(t->e)) { - xfree(t->e); - t->e = NULL; - } + + xfree(t->e); + t->e = NULL; t->num = 0; } return 0; @@ -640,15 +781,57 @@ onig_names_free(regex_t* reg) if (r) return r; t = (NameTable* )reg->name_table; - if (IS_NOT_NULL(t)) xfree(t); + xfree(t); reg->name_table = NULL; return 0; } +extern int +onig_names_copy(regex_t* reg, regex_t* oreg) +{ + NameTable* ot = oreg->name_table; + if (ot) { + OnigEncoding enc = oreg->enc; + int i, num = ot->num; + NameTable* t = xmalloc(sizeof(*t)); + CHECK_NULL_RETURN_MEMERR(t); + *t = *ot; + t->e = xmalloc(t->alloc * sizeof(t->e[0])); + if (IS_NULL(t->e)) { + xfree(t); + return ONIGERR_MEMORY; + } + t->num = 0; + reg->name_table = t; + for (i = 0; i < num; t->num = ++i) { + NameEntry* oe = &(ot->e[i]); + NameEntry* e = &(t->e[i]); + *e = *oe; + e->name = NULL; + e->back_refs = NULL; + e->name = strdup_with_null(enc, oe->name, oe->name + e->name_len); + if (IS_NULL(e->name)) { + onig_names_free(reg); + return ONIGERR_MEMORY; + } + e->back_refs = xmalloc(e->back_alloc * sizeof(e->back_refs[0])); + if (IS_NULL(e->back_refs)) { + xfree(e->name); + onig_names_free(reg); + return ONIGERR_MEMORY; + } + memcpy(e->back_refs, oe->back_refs, e->back_num * sizeof(e->back_refs[0])); + e->back_ref1 = e->back_refs[0]; + } + } + return 0; +} + static NameEntry* -name_find(regex_t* reg, UChar* name, UChar* name_end) +name_find(regex_t* reg, const UChar* name, const UChar* name_end) { - int i, len; + int i; + size_t len; NameEntry* e; NameTable* t = (NameTable* )reg->name_table; @@ -657,7 +840,7 @@ name_find(regex_t* reg, UChar* name, UChar* name_end) 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 e; } } return (NameEntry* )NULL; @@ -675,8 +858,8 @@ onig_foreach_name(regex_t* reg, 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); + (e->back_num > 1 ? e->back_refs : &(e->back_ref1)), + reg, arg); if (r != 0) return r; } } @@ -684,7 +867,31 @@ onig_foreach_name(regex_t* reg, } extern int -onig_number_of_names(regex_t* reg) +onig_renumber_name_table(regex_t* reg, GroupNumRemap* map) +{ + int i, j; + 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 (e->back_num > 1) { + for (j = 0; j < e->back_num; j++) { + e->back_refs[j] = map[e->back_refs[j]].new_val; + } + } + else if (e->back_num == 1) { + e->back_ref1 = map[e->back_ref1].new_val; + } + } + } + return 0; +} + +extern int +onig_number_of_names(const regex_t* reg) { NameTable* t = (NameTable* )reg->name_table; @@ -694,7 +901,7 @@ onig_number_of_names(regex_t* reg) return 0; } -#endif /* else USE_ST_LIBRARY */ +# endif /* else USE_ST_LIBRARY */ static int name_add(regex_t* reg, UChar* name, UChar* name_end, int backref, ScanEnv* env) @@ -708,7 +915,7 @@ name_add(regex_t* reg, UChar* name, UChar* name_end, int backref, ScanEnv* env) e = name_find(reg, name, name_end); if (IS_NULL(e)) { -#ifdef USE_ST_LIBRARY +# ifdef USE_ST_LIBRARY if (IS_NULL(t)) { t = onig_st_init_strend_table_with_size(5); reg->name_table = (void* )t; @@ -717,7 +924,10 @@ name_add(regex_t* reg, UChar* name, UChar* name_end, int backref, ScanEnv* env) CHECK_NULL_RETURN_MEMERR(e); e->name = strdup_with_null(reg->enc, name, name_end); - if (IS_NULL(e->name)) return ONIGERR_MEMORY; + if (IS_NULL(e->name)) { + xfree(e); + return ONIGERR_MEMORY; + } onig_st_insert_strend(t, e->name, (e->name + (name_end - name)), (HashDataType )e); @@ -726,7 +936,7 @@ name_add(regex_t* reg, UChar* name, UChar* name_end, int backref, ScanEnv* env) e->back_alloc = 0; e->back_refs = (int* )NULL; -#else +# else if (IS_NULL(t)) { alloc = INIT_NAMES_ALLOC_NUM; @@ -738,8 +948,8 @@ name_add(regex_t* reg, UChar* name, UChar* name_end, int backref, ScanEnv* env) t->e = (NameEntry* )xmalloc(sizeof(NameEntry) * alloc); if (IS_NULL(t->e)) { - xfree(t); - return ONIGERR_MEMORY; + xfree(t); + return ONIGERR_MEMORY; } t->alloc = alloc; reg->name_table = t; @@ -747,32 +957,35 @@ name_add(regex_t* reg, UChar* name, UChar* name_end, int backref, ScanEnv* env) } else if (t->num == t->alloc) { int i; + NameEntry* p; alloc = t->alloc * 2; - t->e = (NameEntry* )xrealloc(t->e, sizeof(NameEntry) * alloc); - CHECK_NULL_RETURN_MEMERR(t->e); + p = (NameEntry* )xrealloc(t->e, sizeof(NameEntry) * alloc); + CHECK_NULL_RETURN_MEMERR(p); + t->e = p; 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; + 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 = strdup_with_null(reg->enc, name, name_end); + if (IS_NULL(e->name)) return ONIGERR_MEMORY; e->name_len = name_end - name; -#endif +# 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); + name, name_end); return ONIGERR_MULTIPLEX_DEFINED_NAME; } @@ -791,10 +1004,12 @@ name_add(regex_t* reg, UChar* name, UChar* name_end, int backref, ScanEnv* env) } else { if (e->back_num > e->back_alloc) { - alloc = e->back_alloc * 2; - e->back_refs = (int* )xrealloc(e->back_refs, sizeof(int) * alloc); - CHECK_NULL_RETURN_MEMERR(e->back_refs); - e->back_alloc = alloc; + int* p; + alloc = e->back_alloc * 2; + p = (int* )xrealloc(e->back_refs, sizeof(int) * alloc); + CHECK_NULL_RETURN_MEMERR(p); + e->back_refs = p; + e->back_alloc = alloc; } e->back_refs[e->back_num - 1] = backref; } @@ -805,7 +1020,7 @@ name_add(regex_t* reg, UChar* name, UChar* name_end, int backref, ScanEnv* env) extern int onig_name_to_group_numbers(regex_t* reg, const UChar* name, - const UChar* name_end, int** nums) + const UChar* name_end, int** nums) { NameEntry* e = name_find(reg, name, name_end); @@ -813,6 +1028,7 @@ onig_name_to_group_numbers(regex_t* reg, const UChar* name, switch (e->back_num) { case 0: + *nums = 0; break; case 1: *nums = &(e->back_ref1); @@ -826,7 +1042,7 @@ onig_name_to_group_numbers(regex_t* reg, const UChar* name, extern int onig_name_to_backref_number(regex_t* reg, const UChar* name, - const UChar* name_end, OnigRegion *region) + const UChar* name_end, const OnigRegion *region) { int i, n, *nums; @@ -840,8 +1056,8 @@ onig_name_to_backref_number(regex_t* reg, const UChar* name, else { if (IS_NOT_NULL(region)) { for (i = n - 1; i >= 0; i--) { - if (region->beg[nums[i]] != ONIG_REGION_NOTPOS) - return nums[i]; + if (region->beg[nums[i]] != ONIG_REGION_NOTPOS) + return nums[i]; } } return nums[n - 1]; @@ -852,14 +1068,14 @@ onig_name_to_backref_number(regex_t* reg, const UChar* name, extern int onig_name_to_group_numbers(regex_t* reg, const UChar* name, - const UChar* name_end, int** nums) + const UChar* name_end, int** nums) { return ONIG_NO_SUPPORT_CONFIG; } extern int onig_name_to_backref_number(regex_t* reg, const UChar* name, - const UChar* name_end, OnigRegion* region) + const UChar* name_end, const OnigRegion* region) { return ONIG_NO_SUPPORT_CONFIG; } @@ -872,14 +1088,20 @@ onig_foreach_name(regex_t* reg, } extern int -onig_number_of_names(regex_t* reg) +onig_number_of_names(const regex_t* reg) +{ + return 0; +} + +extern int +onig_names_copy(regex_t* reg, regex_t* oreg) { return 0; } #endif /* else USE_NAMED_GROUP */ extern int -onig_noname_group_capture_is_active(regex_t* reg) +onig_noname_group_capture_is_active(const regex_t* reg) { if (ONIG_IS_OPTION_ON(reg->options, ONIG_OPTION_DONT_CAPTURE_GROUP)) return 0; @@ -926,6 +1148,8 @@ scan_env_clear(ScanEnv* env) env->curr_max_regnum = 0; env->has_recursion = 0; #endif + env->parse_depth = 0; + env->warnings_flag = 0; } static int @@ -935,22 +1159,25 @@ scan_env_add_mem_entry(ScanEnv* env) Node** p; need = env->num_mem + 1; + if (need > ONIG_MAX_CAPTURE_GROUP_NUM) + return ONIGERR_TOO_MANY_CAPTURE_GROUPS; if (need >= SCANENV_MEMNODES_SIZE) { if (env->mem_alloc <= need) { if (IS_NULL(env->mem_nodes_dynamic)) { - alloc = INIT_SCANENV_MEMNODES_ALLOC_SIZE; - p = (Node** )xmalloc(sizeof(Node*) * alloc); - xmemcpy(p, env->mem_nodes_static, - sizeof(Node*) * SCANENV_MEMNODES_SIZE); + alloc = INIT_SCANENV_MEMNODES_ALLOC_SIZE; + p = (Node** )xmalloc(sizeof(Node*) * alloc); + CHECK_NULL_RETURN_MEMERR(p); + xmemcpy(p, env->mem_nodes_static, + sizeof(Node*) * SCANENV_MEMNODES_SIZE); } else { - alloc = env->mem_alloc * 2; - p = (Node** )xrealloc(env->mem_nodes_dynamic, sizeof(Node*) * alloc); + alloc = env->mem_alloc * 2; + p = (Node** )xrealloc(env->mem_nodes_dynamic, sizeof(Node*) * alloc); + CHECK_NULL_RETURN_MEMERR(p); } - CHECK_NULL_RETURN_MEMERR(p); for (i = env->num_mem + 1; i < alloc; i++) - p[i] = NULL_NODE; + p[i] = NULL_NODE; env->mem_nodes_dynamic = p; env->mem_alloc = alloc; @@ -972,14 +1199,6 @@ scan_env_set_mem_node(ScanEnv* env, int num, Node* node) } -#ifdef USE_PARSE_TREE_NODE_RECYCLE -typedef struct _FreeNode { - struct _FreeNode* next; -} FreeNode; - -static FreeNode* FreeNodeList = (FreeNode* )NULL; -#endif - extern void onig_node_free(Node* node) { @@ -989,7 +1208,7 @@ onig_node_free(Node* node) switch (NTYPE(node)) { case NT_STR: if (NSTR(node)->capa != 0 && - IS_NOT_NULL(NSTR(node)->s) && NSTR(node)->s != NSTR(node)->buf) { + IS_NOT_NULL(NSTR(node)->s) && NSTR(node)->s != NSTR(node)->buf) { xfree(NSTR(node)->s); } break; @@ -1000,18 +1219,7 @@ onig_node_free(Node* node) { Node* next_node = NCDR(node); -#ifdef USE_PARSE_TREE_NODE_RECYCLE - { - FreeNode* n = (FreeNode* )node; - - THREAD_ATOMIC_START; - n->next = FreeNodeList; - FreeNodeList = n; - THREAD_ATOMIC_END; - } -#else xfree(node); -#endif node = next_node; goto start; } @@ -1021,86 +1229,40 @@ onig_node_free(Node* node) { CClassNode* cc = NCCLASS(node); - if (IS_NCCLASS_SHARE(cc)) return ; - if (cc->mbuf) - bbuf_free(cc->mbuf); + bbuf_free(cc->mbuf); } break; case NT_QTFR: - if (NQTFR(node)->target) - onig_node_free(NQTFR(node)->target); + onig_node_free(NQTFR(node)->target); break; case NT_ENCLOSE: - if (NENCLOSE(node)->target) - onig_node_free(NENCLOSE(node)->target); + onig_node_free(NENCLOSE(node)->target); break; case NT_BREF: - if (IS_NOT_NULL(NBREF(node)->back_dynamic)) - xfree(NBREF(node)->back_dynamic); + xfree(NBREF(node)->back_dynamic); break; case NT_ANCHOR: - if (NANCHOR(node)->target) - onig_node_free(NANCHOR(node)->target); + onig_node_free(NANCHOR(node)->target); break; } -#ifdef USE_PARSE_TREE_NODE_RECYCLE - { - FreeNode* n = (FreeNode* )node; - - THREAD_ATOMIC_START; - n->next = FreeNodeList; - FreeNodeList = n; - THREAD_ATOMIC_END; - } -#else xfree(node); -#endif } -#ifdef USE_PARSE_TREE_NODE_RECYCLE -extern int -onig_free_node_list(void) -{ - FreeNode* n; - - /* THREAD_ATOMIC_START; */ - while (IS_NOT_NULL(FreeNodeList)) { - n = FreeNodeList; - FreeNodeList = FreeNodeList->next; - xfree(n); - } - /* THREAD_ATOMIC_END; */ - return 0; -} -#endif - static Node* node_new(void) { Node* node; -#ifdef USE_PARSE_TREE_NODE_RECYCLE - THREAD_ATOMIC_START; - if (IS_NOT_NULL(FreeNodeList)) { - node = (Node* )FreeNodeList; - FreeNodeList = FreeNodeList->next; - THREAD_ATOMIC_END; - return node; - } - THREAD_ATOMIC_END; -#endif - node = (Node* )xmalloc(sizeof(Node)); /* xmemset(node, 0, sizeof(Node)); */ return node; } - static void initialize_cclass(CClassNode* cc) { @@ -1122,57 +1284,7 @@ node_new_cclass(void) } static Node* -node_new_cclass_by_codepoint_range(int not, OnigCodePoint sb_out, - const OnigCodePoint ranges[]) -{ - int n, i; - CClassNode* cc; - OnigCodePoint j; - - Node* node = node_new_cclass(); - CHECK_NULL_RETURN(node); - - cc = NCCLASS(node); - if (not != 0) NCCLASS_SET_NOT(cc); - - BITSET_CLEAR(cc->bs); - if (sb_out > 0 && IS_NOT_NULL(ranges)) { - n = ONIGENC_CODE_RANGE_NUM(ranges); - for (i = 0; i < n; i++) { - for (j = ONIGENC_CODE_RANGE_FROM(ranges, i); - j <= (int )ONIGENC_CODE_RANGE_TO(ranges, i); j++) { - if (j >= sb_out) goto sb_end; - - BITSET_SET_BIT(cc->bs, j); - } - } - } - - sb_end: - if (IS_NULL(ranges)) { - is_null: - cc->mbuf = NULL; - } - else { - BBuf* bbuf; - - n = ONIGENC_CODE_RANGE_NUM(ranges); - if (n == 0) goto is_null; - - bbuf = (BBuf* )xmalloc(sizeof(BBuf)); - CHECK_NULL_RETURN(bbuf); - bbuf->alloc = n + 1; - bbuf->used = n + 1; - bbuf->p = (UChar* )((void* )ranges); - - cc->mbuf = bbuf; - } - - return node; -} - -static Node* -node_new_ctype(int type, int not) +node_new_ctype(int type, int not, int ascii_range) { Node* node = node_new(); CHECK_NULL_RETURN(node); @@ -1180,6 +1292,7 @@ node_new_ctype(int type, int not) SET_NTYPE(node, NT_CTYPE); NCTYPE(node)->ctype = type; NCTYPE(node)->not = not; + NCTYPE(node)->ascii_range = ascii_range; return node; } @@ -1251,15 +1364,16 @@ onig_node_new_anchor(int type) NANCHOR(node)->type = type; NANCHOR(node)->target = NULL; NANCHOR(node)->char_len = -1; + NANCHOR(node)->ascii_range = 0; return node; } static Node* node_new_backref(int back_num, int* backrefs, int by_name, -#ifdef USE_BACKREF_AT_LEVEL - int exist_level, int nest_level, +#ifdef USE_BACKREF_WITH_LEVEL + int exist_level, int nest_level, #endif - ScanEnv* env) + ScanEnv* env) { int i; Node* node = node_new(); @@ -1273,7 +1387,7 @@ node_new_backref(int back_num, int* backrefs, int by_name, if (by_name != 0) NBREF(node)->state |= NST_NAME_REF; -#ifdef USE_BACKREF_AT_LEVEL +#ifdef USE_BACKREF_WITH_LEVEL if (exist_level != 0) { NBREF(node)->state |= NST_NEST_LEVEL; NBREF(node)->nest_level = nest_level; @@ -1282,7 +1396,7 @@ node_new_backref(int back_num, int* backrefs, int by_name, for (i = 0; i < back_num; i++) { if (backrefs[i] <= env->num_mem && - IS_NULL(SCANENV_MEM_NODES(env)[backrefs[i]])) { + IS_NULL(SCANENV_MEM_NODES(env)[backrefs[i]])) { NBREF(node)->state |= NST_RECURSION; /* /...(\1).../ */ break; } @@ -1307,17 +1421,17 @@ node_new_backref(int back_num, int* backrefs, int by_name, #ifdef USE_SUBEXP_CALL static Node* -node_new_call(UChar* name, UChar* name_end) +node_new_call(UChar* name, UChar* name_end, int gnum) { Node* node = node_new(); CHECK_NULL_RETURN(node); SET_NTYPE(node, NT_CALL); - NCALL(node)->state = 0; - NCALL(node)->ref_num = CALLNODE_REFNUM_UNDEF; - NCALL(node)->target = NULL_NODE; - NCALL(node)->name = name; - NCALL(node)->name_end = name_end; + NCALL(node)->state = 0; + NCALL(node)->target = NULL_NODE; + NCALL(node)->name = name; + NCALL(node)->name_end = name_end; + NCALL(node)->group_num = gnum; /* call by number if gnum != 0 */ return node; } #endif @@ -1337,7 +1451,7 @@ node_new_quantifier(int lower, int upper, int by_number) NQTFR(node)->target_empty_info = NQ_TARGET_ISNOT_EMPTY; NQTFR(node)->head_exact = NULL_NODE; NQTFR(node)->next_head_exact = NULL_NODE; - NQTFR(node)->is_refered = 0; + NQTFR(node)->is_referred = 0; if (by_number != 0) NQTFR(node)->state |= NST_BY_NUMBER; @@ -1397,28 +1511,28 @@ node_new_option(OnigOptionType option) extern int onig_node_str_cat(Node* node, const UChar* s, const UChar* end) { - int addlen = end - s; + ptrdiff_t addlen = end - s; if (addlen > 0) { - int len = NSTR(node)->end - NSTR(node)->s; + ptrdiff_t len = NSTR(node)->end - NSTR(node)->s; if (NSTR(node)->capa > 0 || (len + addlen > NODE_STR_BUF_SIZE - 1)) { UChar* p; - int capa = len + addlen + NODE_STR_MARGIN; + ptrdiff_t capa = len + addlen + NODE_STR_MARGIN; if (capa <= NSTR(node)->capa) { - onig_strcpy(NSTR(node)->s + len, s, end); + onig_strcpy(NSTR(node)->s + len, s, end); } else { - if (NSTR(node)->s == NSTR(node)->buf) - p = strcat_capa_from_static(NSTR(node)->s, NSTR(node)->end, - s, end, capa); - else - p = strcat_capa(NSTR(node)->s, NSTR(node)->end, s, end, capa); + if (NSTR(node)->s == NSTR(node)->buf) + p = strcat_capa_from_static(NSTR(node)->s, NSTR(node)->end, + s, end, capa); + else + p = strcat_capa(NSTR(node)->s, NSTR(node)->end, s, end, capa); - CHECK_NULL_RETURN_MEMERR(p); - NSTR(node)->s = p; - NSTR(node)->capa = capa; + CHECK_NULL_RETURN_MEMERR(p); + NSTR(node)->s = p; + NSTR(node)->capa = (int )capa; } } else { @@ -1446,6 +1560,16 @@ node_str_cat_char(Node* node, UChar c) return onig_node_str_cat(node, s, s + 1); } +static int +node_str_cat_codepoint(Node* node, OnigEncoding enc, OnigCodePoint c) +{ + UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN]; + int num = ONIGENC_CODE_TO_MBC(enc, c, buf); + if (num < 0) return num; + return onig_node_str_cat(node, buf, buf + num); +} + +#if 0 extern void onig_node_conv_to_str_node(Node* node, int flag) { @@ -1455,6 +1579,7 @@ onig_node_conv_to_str_node(Node* node, int flag) NSTR(node)->s = NSTR(node)->buf; NSTR(node)->end = NSTR(node)->buf; } +#endif extern void onig_node_str_clear(Node* node) @@ -1498,7 +1623,8 @@ static Node* node_new_str_raw(UChar* s, UChar* end) { Node* node = node_new_str(s, end); - NSTRING_SET_RAW(node); + if (IS_NOT_NULL(node)) + NSTRING_SET_RAW(node); return node; } @@ -1524,11 +1650,11 @@ str_node_split_last_char(StrNode* sn, OnigEncoding enc) Node* n = 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 splitted. */ + p = onigenc_get_prev_char_head(enc, sn->s, sn->end, sn->end); + if (p && p > sn->s) { /* can be split. */ n = node_new_str(p, sn->end); - if ((sn->flag & NSTR_RAW) != 0) - NSTRING_SET_RAW(n); + if (IS_NOT_NULL(n) && (sn->flag & NSTR_RAW) != 0) + NSTRING_SET_RAW(n); sn->end = (UChar* )p; } } @@ -1539,7 +1665,7 @@ static int str_node_can_be_split(StrNode* sn, OnigEncoding enc) { if (sn->end > sn->s) { - return ((enc_len(enc, sn->s, sn->end) < sn->end - sn->s) ? 1 : 0); + return ((enclen(enc, sn->s, sn->end) < sn->end - sn->s) ? 1 : 0); } return 0; } @@ -1576,7 +1702,7 @@ onig_scan_unsigned_number(UChar** src, const UChar* end, OnigEncoding enc) if (ONIGENC_IS_CODE_DIGIT(enc, c)) { val = (unsigned int )DIGITVAL(c); if ((INT_MAX_LIMIT - val) / 10UL < num) - return -1; /* overflow */ + return -1; /* overflow */ num = num * 10 + val; } @@ -1590,36 +1716,41 @@ onig_scan_unsigned_number(UChar** src, const UChar* end, OnigEncoding enc) } static int -scan_unsigned_hexadecimal_number(UChar** src, UChar* end, int maxlen, - OnigEncoding enc) +scan_unsigned_hexadecimal_number(UChar** src, UChar* end, int minlen, + int maxlen, OnigEncoding enc) { OnigCodePoint c; unsigned int num, val; + int restlen; UChar* p = *src; PFETCH_READY; + restlen = maxlen - minlen; num = 0; while (!PEND && maxlen-- != 0) { PFETCH(c); if (ONIGENC_IS_CODE_XDIGIT(enc, c)) { val = (unsigned int )XDIGITVAL(enc,c); if ((INT_MAX_LIMIT - val) / 16UL < num) - return -1; /* overflow */ + return -1; /* overflow */ num = (num << 4) + XDIGITVAL(enc,c); } else { PUNFETCH; + maxlen++; break; } } + if (maxlen > restlen) + return -2; /* not enough digits */ *src = p; return num; } static int scan_unsigned_octal_number(UChar** src, UChar* end, int maxlen, - OnigEncoding enc) + OnigEncoding enc) { OnigCodePoint c; unsigned int num, val; @@ -1632,7 +1763,7 @@ scan_unsigned_octal_number(UChar** src, UChar* end, int maxlen, if (ONIGENC_IS_CODE_DIGIT(enc, c) && c < '8') { val = ODIGITVAL(c); if ((INT_MAX_LIMIT - val) / 8UL < num) - return -1; /* overflow */ + return -1; /* overflow */ num = (num << 3) + val; } @@ -1672,10 +1803,11 @@ new_code_range(BBuf** pbuf) } static int -add_code_range_to_buf(BBuf** pbuf, OnigCodePoint from, OnigCodePoint to) +add_code_range_to_buf0(BBuf** pbuf, ScanEnv* env, OnigCodePoint from, OnigCodePoint to, + int checkdup) { int r, inc_n, pos; - int low, high, bound, x; + OnigCodePoint low, high, bound, x; OnigCodePoint n, *data; BBuf* bbuf; @@ -1696,40 +1828,50 @@ add_code_range_to_buf(BBuf** pbuf, OnigCodePoint from, OnigCodePoint to) data = (OnigCodePoint* )(bbuf->p); data++; - for (low = 0, bound = n; low < bound; ) { + bound = (from == 0) ? 0 : n; + for (low = 0; low < bound; ) { x = (low + bound) >> 1; - if (from > data[x*2 + 1]) + if (from - 1 > data[x*2 + 1]) low = x + 1; else bound = x; } - for (high = low, bound = n; high < bound; ) { + high = (to == ONIG_LAST_CODE_POINT) ? n : low; + for (bound = n; high < bound; ) { x = (high + bound) >> 1; - if (to >= data[x*2] - 1) + if (to + 1 >= data[x*2]) high = x + 1; else bound = x; } + /* data[(low-1)*2+1] << from <= data[low*2] + * data[(high-1)*2+1] <= to << data[high*2] + */ 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 (checkdup && from <= data[low*2+1] + && (data[low*2] <= from || data[low*2+1] <= to)) + CC_DUP_WARN(env, from, to); 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) { + if (inc_n != 0) { 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) { - BBUF_MOVE_RIGHT(bbuf, from_pos, to_pos, size); + if (high < n) { + int size = (n - high) * 2 * SIZE_CODE_POINT; + BBUF_MOVE_RIGHT(bbuf, from_pos, to_pos, size); + } } else { BBUF_MOVE_LEFT_REDUCE(bbuf, from_pos, to_pos); @@ -1747,7 +1889,13 @@ add_code_range_to_buf(BBuf** pbuf, OnigCodePoint from, OnigCodePoint to) } static int -add_code_range(BBuf** pbuf, ScanEnv* env, OnigCodePoint from, OnigCodePoint to) +add_code_range_to_buf(BBuf** pbuf, ScanEnv* env, OnigCodePoint from, OnigCodePoint to) +{ + return add_code_range_to_buf0(pbuf, env, from, to, 1); +} + +static int +add_code_range0(BBuf** pbuf, ScanEnv* env, OnigCodePoint from, OnigCodePoint to, int checkdup) { if (from > to) { if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_ALLOW_EMPTY_RANGE_IN_CC)) @@ -1756,11 +1904,17 @@ add_code_range(BBuf** pbuf, ScanEnv* env, OnigCodePoint from, OnigCodePoint to) return ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS; } - return add_code_range_to_buf(pbuf, from, to); + return add_code_range_to_buf0(pbuf, env, from, to, checkdup); +} + +static int +add_code_range(BBuf** pbuf, ScanEnv* env, OnigCodePoint from, OnigCodePoint to) +{ + return add_code_range0(pbuf, env, from, to, 1); } static int -not_code_range_buf(OnigEncoding enc, BBuf* bbuf, BBuf** pbuf) +not_code_range_buf(OnigEncoding enc, BBuf* bbuf, BBuf** pbuf, ScanEnv* env) { int r, i, n; OnigCodePoint pre, from, *data, to = 0; @@ -1782,14 +1936,14 @@ not_code_range_buf(OnigEncoding enc, BBuf* bbuf, BBuf** pbuf) from = data[i*2]; to = data[i*2+1]; if (pre <= from - 1) { - r = add_code_range_to_buf(pbuf, pre, from - 1); + r = add_code_range_to_buf(pbuf, env, pre, from - 1); if (r != 0) return r; } - if (to == ~((OnigCodePoint )0)) break; + if (to == ONIG_LAST_CODE_POINT) break; pre = to + 1; } - if (to < ~((OnigCodePoint )0)) { - r = add_code_range_to_buf(pbuf, to + 1, ~((OnigCodePoint )0)); + if (to < ONIG_LAST_CODE_POINT) { + r = add_code_range_to_buf(pbuf, env, to + 1, ONIG_LAST_CODE_POINT); } return r; } @@ -1803,7 +1957,7 @@ not_code_range_buf(OnigEncoding enc, BBuf* bbuf, BBuf** pbuf) static int or_code_range_buf(OnigEncoding enc, BBuf* bbuf1, int not1, - BBuf* bbuf2, int not2, BBuf** pbuf) + BBuf* bbuf2, int not2, BBuf** pbuf, ScanEnv* env) { int r; OnigCodePoint i, n1, *data1; @@ -1826,10 +1980,10 @@ or_code_range_buf(OnigEncoding enc, BBuf* bbuf1, int not1, } else { if (not2 == 0) { - return bbuf_clone(pbuf, bbuf2); + return bbuf_clone(pbuf, bbuf2); } else { - return not_code_range_buf(enc, bbuf2, pbuf); + return not_code_range_buf(enc, bbuf2, pbuf, env); } } } @@ -1845,22 +1999,22 @@ or_code_range_buf(OnigEncoding enc, BBuf* bbuf1, int not1, r = bbuf_clone(pbuf, bbuf2); } else if (not1 == 0) { /* 1 OR (not 2) */ - r = not_code_range_buf(enc, bbuf2, pbuf); + r = not_code_range_buf(enc, bbuf2, pbuf, env); } 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); + r = add_code_range_to_buf(pbuf, env, from, to); if (r != 0) return r; } return 0; } static int -and_code_range1(BBuf** pbuf, OnigCodePoint from1, OnigCodePoint to1, - OnigCodePoint* data, int n) +and_code_range1(BBuf** pbuf, ScanEnv* env, OnigCodePoint from1, OnigCodePoint to1, + OnigCodePoint* data, int n) { int i, r; OnigCodePoint from2, to2; @@ -1871,19 +2025,19 @@ and_code_range1(BBuf** pbuf, OnigCodePoint from1, OnigCodePoint to1, if (from2 < from1) { if (to2 < from1) continue; else { - from1 = to2 + 1; + 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; + if (from1 <= from2 - 1) { + r = add_code_range_to_buf(pbuf, env, from1, from2-1); + if (r != 0) return r; + } + from1 = to2 + 1; } else { - to1 = from2 - 1; + to1 = from2 - 1; } } else { @@ -1892,14 +2046,14 @@ and_code_range1(BBuf** pbuf, OnigCodePoint from1, OnigCodePoint to1, if (from1 > to1) break; } if (from1 <= to1) { - r = add_code_range_to_buf(pbuf, from1, to1); + r = add_code_range_to_buf(pbuf, env, 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) +and_code_range_buf(BBuf* bbuf1, int not1, BBuf* bbuf2, int not2, BBuf** pbuf, ScanEnv* env) { int r; OnigCodePoint i, j, n1, n2, *data1, *data2; @@ -1932,14 +2086,14 @@ and_code_range_buf(BBuf* bbuf1, int not1, BBuf* bbuf2, int not2, BBuf** pbuf) 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; + 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, env, from, to); + if (r != 0) return r; } } } @@ -1947,7 +2101,7 @@ and_code_range_buf(BBuf* bbuf1, int not1, BBuf* bbuf2, int not2, BBuf** pbuf) for (i = 0; i < n1; i++) { from1 = data1[i*2]; to1 = data1[i*2+1]; - r = and_code_range1(pbuf, from1, to1, data2, n2); + r = and_code_range1(pbuf, env, from1, to1, data2, n2); if (r != 0) return r; } } @@ -1956,33 +2110,11 @@ and_code_range_buf(BBuf* bbuf1, int not1, BBuf* bbuf2, int not2, BBuf** pbuf) } 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; -} - -static int -and_cclass(CClassNode* dest, CClassNode* cc, OnigEncoding enc) +and_cclass(CClassNode* dest, CClassNode* cc, ScanEnv* env) { + OnigEncoding enc = env->enc; int r, not1, not2; - BBuf *buf1, *buf2, *pbuf; + BBuf *buf1, *buf2, *pbuf = 0; BitSetRef bsr1, bsr2; BitSet bs1, bs2; @@ -2012,22 +2144,21 @@ and_cclass(CClassNode* dest, CClassNode* cc, OnigEncoding enc) if (! ONIGENC_IS_SINGLEBYTE(enc)) { if (not1 != 0 && not2 != 0) { - r = or_code_range_buf(enc, buf1, 0, buf2, 0, &pbuf); + r = or_code_range_buf(enc, buf1, 0, buf2, 0, &pbuf, env); } else { - r = and_code_range_buf(buf1, not1, buf2, not2, &pbuf); + r = and_code_range_buf(buf1, not1, buf2, not2, &pbuf, env); 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; + BBuf *tbuf = 0; + r = not_code_range_buf(enc, pbuf, &tbuf, env); + bbuf_free(pbuf); + pbuf = tbuf; } } - if (r != 0) return r; + if (r != 0) { + bbuf_free(pbuf); + return r; + } dest->mbuf = pbuf; bbuf_free(buf1); @@ -2037,10 +2168,11 @@ and_cclass(CClassNode* dest, CClassNode* cc, OnigEncoding enc) } static int -or_cclass(CClassNode* dest, CClassNode* cc, OnigEncoding enc) +or_cclass(CClassNode* dest, CClassNode* cc, ScanEnv* env) { + OnigEncoding enc = env->enc; int r, not1, not2; - BBuf *buf1, *buf2, *pbuf; + BBuf *buf1, *buf2, *pbuf = 0; BitSetRef bsr1, bsr2; BitSet bs1, bs2; @@ -2070,22 +2202,21 @@ or_cclass(CClassNode* dest, CClassNode* cc, OnigEncoding enc) if (! ONIGENC_IS_SINGLEBYTE(enc)) { if (not1 != 0 && not2 != 0) { - r = and_code_range_buf(buf1, 0, buf2, 0, &pbuf); + r = and_code_range_buf(buf1, 0, buf2, 0, &pbuf, env); } else { - r = or_code_range_buf(enc, buf1, not1, buf2, not2, &pbuf); + r = or_code_range_buf(enc, buf1, not1, buf2, not2, &pbuf, env); 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; + BBuf *tbuf = 0; + r = not_code_range_buf(enc, pbuf, &tbuf, env); + bbuf_free(pbuf); + pbuf = tbuf; } } - if (r != 0) return r; + if (r != 0) { + bbuf_free(pbuf); + return r; + } dest->mbuf = pbuf; bbuf_free(buf1); @@ -2095,8 +2226,10 @@ or_cclass(CClassNode* dest, CClassNode* cc, OnigEncoding enc) return 0; } -static int -conv_backslash_value(int c, ScanEnv* env) +static void UNKNOWN_ESC_WARN(ScanEnv *env, int c); + +static OnigCodePoint +conv_backslash_value(OnigCodePoint c, ScanEnv* env) { if (IS_SYNTAX_OP(env->syntax, ONIG_SYN_OP_ESC_CONTROL_CHARS)) { switch (c) { @@ -2109,16 +2242,21 @@ conv_backslash_value(int c, ScanEnv* env) case 'e': return '\033'; case 'v': if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ESC_V_VTAB)) - return '\v'; + return '\v'; break; default: + if (('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z')) + UNKNOWN_ESC_WARN(env, c); break; } } return c; } +#ifdef USE_NO_INVALID_QUANTIFIER +# define is_invalid_quantifier_target(node) 0 +#else static int is_invalid_quantifier_target(Node* node) { @@ -2150,6 +2288,7 @@ is_invalid_quantifier_target(Node* node) } return 0; } +#endif /* ?:0, *:1, +:2, ??:3, *?:4, +?:5 */ static int @@ -2184,16 +2323,16 @@ enum ReduceType { RQ_AQ, /* to '*?' */ RQ_QQ, /* to '??' */ RQ_P_QQ, /* to '+)??' */ - RQ_PQ_Q /* to '+?)?' */ }; -static enum ReduceType ReduceTypeTable[6][6] = { +static enum ReduceType const ReduceTypeTable[6][6] = { +/* '?', '*', '+', '??', '*?', '+?' p / c */ {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} /* '+?' */ + {RQ_ASIS, RQ_ASIS, RQ_ASIS, RQ_AQ, RQ_AQ, RQ_DEL} /* '+?' */ }; extern void @@ -2208,7 +2347,7 @@ onig_reduce_nested_quantifier(Node* pnode, Node* cnode) cnum = popular_quantifier_num(c); if (pnum < 0 || cnum < 0) return ; - switch(ReduceTypeTable[cnum][pnum]) { + switch (ReduceTypeTable[cnum][pnum]) { case RQ_DEL: *pnode = *cnode; break; @@ -2230,12 +2369,6 @@ onig_reduce_nested_quantifier(Node* pnode, Node* cnode) c->lower = 1; c->upper = REPEAT_INFINITE; c->greedy = 1; return ; break; - case RQ_PQ_Q: - p->target = cnode; - p->lower = 0; p->upper = 1; p->greedy = 1; - c->lower = 1; c->upper = REPEAT_INFINITE; c->greedy = 0; - return ; - break; case RQ_ASIS: p->target = cnode; return ; @@ -2267,6 +2400,9 @@ enum TokenSyms { TK_CC_OPEN, TK_QUOTE_OPEN, TK_CHAR_PROPERTY, /* \p{...}, \P{...} */ + TK_LINEBREAK, + TK_EXTENDED_GRAPHEME_CLUSTER, + TK_KEEP, /* in cc */ TK_CC_CLOSE, TK_CC_RANGE, @@ -2284,8 +2420,10 @@ typedef struct { UChar* s; int c; OnigCodePoint code; - int anchor; - int subtype; + struct { + int subtype; + int ascii_range; + } anchor; struct { int lower; int upper; @@ -2297,7 +2435,7 @@ typedef struct { int ref1; int* refs; int by_name; -#ifdef USE_BACKREF_AT_LEVEL +#ifdef USE_BACKREF_WITH_LEVEL int exist_level; int level; /* \k<name+n> */ #endif @@ -2305,6 +2443,8 @@ typedef struct { struct { UChar* name; UChar* name_end; + int gnum; + int rel; } call; struct { int ctype; @@ -2366,7 +2506,7 @@ fetch_range_quantifier(UChar** src, UChar* end, OnigToken* tok, ScanEnv* env) if (p == prev) { if (non_low != 0) - goto invalid; + goto invalid; up = REPEAT_INFINITE; /* {n,} : {n,infinite} */ } } @@ -2383,6 +2523,7 @@ fetch_range_quantifier(UChar** src, UChar* end, OnigToken* tok, ScanEnv* env) PFETCH(c); if (IS_SYNTAX_OP(env->syntax, ONIG_SYN_OP_ESC_BRACE_INTERVAL)) { if (c != MC_ESC(env->syntax)) goto invalid; + if (PEND) goto invalid; PFETCH(c); } if (c != '}') goto invalid; @@ -2406,29 +2547,27 @@ fetch_range_quantifier(UChar** src, UChar* end, OnigToken* tok, ScanEnv* env) /* \M-, \C-, \c, or \... */ static int -fetch_escaped_value(UChar** src, UChar* end, ScanEnv* env) +fetch_escaped_value(UChar** src, UChar* end, ScanEnv* env, OnigCodePoint* val) { int v; OnigCodePoint c; OnigEncoding enc = env->enc; UChar* p = *src; - PFETCH_READY; if (PEND) return ONIGERR_END_PATTERN_AT_ESCAPE; - PFETCH(c); + 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(c); + PFETCH_S(c); if (c != '-') return ONIGERR_META_CODE_SYNTAX; if (PEND) return ONIGERR_END_PATTERN_AT_META; - PFETCH(c); + PFETCH_S(c); if (c == MC_ESC(env->syntax)) { - v = fetch_escaped_value(&p, end, env); - if (v < 0) return v; - c = (OnigCodePoint )v; + v = fetch_escaped_value(&p, end, env, &c); + if (v < 0) return v; } c = ((c & 0xff) | 0x80); } @@ -2439,7 +2578,7 @@ fetch_escaped_value(UChar** src, UChar* end, ScanEnv* env) 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(c); + PFETCH_S(c); if (c != '-') return ONIGERR_CONTROL_CODE_SYNTAX; goto control; } @@ -2450,17 +2589,16 @@ fetch_escaped_value(UChar** src, UChar* end, ScanEnv* env) if (IS_SYNTAX_OP(env->syntax, ONIG_SYN_OP_ESC_C_CONTROL)) { control: if (PEND) return ONIGERR_END_PATTERN_AT_CONTROL; - PFETCH(c); + PFETCH_S(c); if (c == '?') { - c = 0177; + c = 0177; } else { if (c == MC_ESC(env->syntax)) { - v = fetch_escaped_value(&p, end, env); + v = fetch_escaped_value(&p, end, env, &c); if (v < 0) return v; - c = (OnigCodePoint )v; } - c &= 0x9f; + c &= 0x9f; } break; } @@ -2475,7 +2613,8 @@ fetch_escaped_value(UChar** src, UChar* end, ScanEnv* env) } *src = p; - return c; + *val = c; + return 0; } static int fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env); @@ -2486,6 +2625,8 @@ get_name_end_code_point(OnigCodePoint start) switch (start) { case '<': return (OnigCodePoint )'>'; break; case '\'': return (OnigCodePoint )'\''; break; + case '(': return (OnigCodePoint )')'; break; + case '{': return (OnigCodePoint )'}'; break; default: break; } @@ -2494,22 +2635,37 @@ get_name_end_code_point(OnigCodePoint start) } #ifdef USE_NAMED_GROUP -#ifdef USE_BACKREF_AT_LEVEL +# ifdef RUBY +# define ONIGENC_IS_CODE_NAME(enc, c) TRUE +# else +# define ONIGENC_IS_CODE_NAME(enc, c) ONIGENC_IS_CODE_WORD(enc, c) +# endif + +# ifdef USE_BACKREF_WITH_LEVEL /* \k<name+n>, \k<name-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* level) + UChar** rname_end, ScanEnv* env, + int* rback_num, int* rlevel) { - int r, exist_level = 0; + int r, sign, is_num, exist_level; OnigCodePoint end_code; OnigCodePoint c = 0; OnigEncoding enc = env->enc; UChar *name_end; + UChar *pnum_head; UChar *p = *src; PFETCH_READY; + *rback_num = 0; + is_num = exist_level = 0; + sign = 1; + pnum_head = *src; + end_code = get_name_end_code_point(start_code); name_end = end; @@ -2522,7 +2678,15 @@ fetch_name_with_level(OnigCodePoint start_code, UChar** src, UChar* end, if (c == end_code) return ONIGERR_EMPTY_GROUP_NAME; - if (!ONIGENC_IS_CODE_WORD(enc, c)) { + if (ONIGENC_IS_CODE_DIGIT(enc, c)) { + is_num = 1; + } + else if (c == '-') { + is_num = 2; + sign = -1; + pnum_head = p; + } + else if (!ONIGENC_IS_CODE_NAME(enc, c)) { r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME; } } @@ -2530,29 +2694,47 @@ fetch_name_with_level(OnigCodePoint start_code, UChar** src, UChar* end, while (!PEND) { name_end = p; PFETCH(c); - if (c == end_code || c == ')' || c == '+' || c == '-') break; + if (c == end_code || c == ')' || c == '+' || c == '-') { + if (is_num == 2) r = ONIGERR_INVALID_GROUP_NAME; + break; + } - if (!ONIGENC_IS_CODE_WORD(enc, c)) { + if (is_num != 0) { + if (ONIGENC_IS_CODE_DIGIT(enc, c)) { + is_num = 1; + } + else { + r = ONIGERR_INVALID_GROUP_NAME; + is_num = 0; + } + } + else if (!ONIGENC_IS_CODE_NAME(enc, c)) { r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME; } } - if (c != end_code) { + if (r == 0 && c != end_code) { if (c == '+' || c == '-') { - int num; + int level; int flag = (c == '-' ? -1 : 1); + if (PEND) { + r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME; + goto end; + } PFETCH(c); if (! ONIGENC_IS_CODE_DIGIT(enc, c)) goto err; PUNFETCH; - num = onig_scan_unsigned_number(&p, end, enc); - if (num < 0) return ONIGERR_TOO_BIG_NUMBER; - *level = (num * flag); + level = onig_scan_unsigned_number(&p, end, enc); + if (level < 0) return ONIGERR_TOO_BIG_NUMBER; + *rlevel = (level * flag); exist_level = 1; - PFETCH(c); - if (c == end_code) - goto end; + if (!PEND) { + PFETCH(c); + if (c == end_code) + goto end; + } } err: @@ -2562,6 +2744,14 @@ fetch_name_with_level(OnigCodePoint start_code, UChar** src, UChar* end, end: if (r == 0) { + if (is_num != 0) { + *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) goto err; + + *rback_num *= sign; + } + *rname_end = name_end; *src = p; return (exist_level ? 1 : 0); @@ -2571,80 +2761,130 @@ fetch_name_with_level(OnigCodePoint start_code, UChar** src, UChar* end, return r; } } -#endif /* USE_BACKREF_AT_LEVEL */ +# endif /* USE_BACKREF_WITH_LEVEL */ /* - def: 0 -> define name (don't allow number name) + 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 ref) + UChar** rname_end, ScanEnv* env, int* rback_num, int ref) { - int r, is_num; + int r, is_num, sign; OnigCodePoint end_code; OnigCodePoint c = 0; OnigEncoding enc = env->enc; UChar *name_end; + UChar *pnum_head; UChar *p = *src; - PFETCH_READY; + + *rback_num = 0; end_code = get_name_end_code_point(start_code); name_end = end; + pnum_head = *src; r = 0; is_num = 0; + sign = 1; if (PEND) { return ONIGERR_EMPTY_GROUP_NAME; } else { - PFETCH(c); + PFETCH_S(c); if (c == end_code) return ONIGERR_EMPTY_GROUP_NAME; if (ONIGENC_IS_CODE_DIGIT(enc, c)) { if (ref == 1) - is_num = 1; + is_num = 1; else { - r = ONIGERR_INVALID_GROUP_NAME; + r = ONIGERR_INVALID_GROUP_NAME; + is_num = 0; } } - else if (!ONIGENC_IS_CODE_WORD(enc, c)) { + else if (c == '-') { + if (ref == 1) { + is_num = 2; + sign = -1; + pnum_head = p; + } + else { + r = ONIGERR_INVALID_GROUP_NAME; + is_num = 0; + } + } + else if (!ONIGENC_IS_CODE_NAME(enc, c)) { r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME; } } - while (!PEND) { - name_end = p; - PFETCH(c); - if (c == end_code || c == ')') break; + if (r == 0) { + while (!PEND) { + name_end = p; + PFETCH_S(c); + if (c == end_code || c == ')') { + if (is_num == 2) { + r = ONIGERR_INVALID_GROUP_NAME; + goto teardown; + } + break; + } - if (is_num == 1) { - if (! ONIGENC_IS_CODE_DIGIT(enc, c)) { - if (!ONIGENC_IS_CODE_WORD(enc, c)) - r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME; - else - r = ONIGERR_INVALID_GROUP_NAME; + if (is_num != 0) { + if (ONIGENC_IS_CODE_DIGIT(enc, c)) { + is_num = 1; + } + else { + if (!ONIGENC_IS_CODE_WORD(enc, c)) + r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME; + else + r = ONIGERR_INVALID_GROUP_NAME; + goto teardown; + } } - } - else { - if (!ONIGENC_IS_CODE_WORD(enc, c)) { - r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME; + else { + if (!ONIGENC_IS_CODE_NAME(enc, c)) { + r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME; + goto teardown; + } } } - } - if (c != end_code) { - r = ONIGERR_INVALID_GROUP_NAME; - name_end = end; - } + if (c != end_code) { + r = ONIGERR_INVALID_GROUP_NAME; + name_end = end; + goto err; + } + + if (is_num != 0) { + *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) { + r = ONIGERR_INVALID_GROUP_NAME; + goto err; + } + + *rback_num *= sign; + } - if (r == 0) { *rname_end = name_end; *src = p; return 0; } else { +teardown: + 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; } @@ -2652,35 +2892,70 @@ fetch_name(OnigCodePoint start_code, UChar** src, UChar* end, #else static int fetch_name(OnigCodePoint start_code, UChar** src, UChar* end, - UChar** rname_end, ScanEnv* env, int ref) + UChar** rname_end, ScanEnv* env, int* rback_num, int ref) { - int r, len; + int r, is_num, sign; OnigCodePoint end_code; OnigCodePoint c = 0; UChar *name_end; OnigEncoding enc = env->enc; + UChar *pnum_head; UChar *p = *src; PFETCH_READY; + *rback_num = 0; + end_code = get_name_end_code_point(start_code); + *rname_end = name_end = end; r = 0; + pnum_head = *src; + is_num = 0; + sign = 1; + + if (PEND) { + return ONIGERR_EMPTY_GROUP_NAME; + } + else { + PFETCH(c); + if (c == end_code) + return ONIGERR_EMPTY_GROUP_NAME; + + if (ONIGENC_IS_CODE_DIGIT(enc, c)) { + is_num = 1; + } + else if (c == '-') { + is_num = 2; + sign = -1; + pnum_head = p; + } + else { + r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME; + } + } + while (!PEND) { name_end = p; - if (enc_len(enc, p) > 1) - r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME; PFETCH(c); if (c == end_code || c == ')') break; if (! ONIGENC_IS_CODE_DIGIT(enc, c)) r = ONIGERR_INVALID_CHAR_IN_GROUP_NAME; } - if (c != end_code) { + if (r == 0 && c != end_code) { r = ONIGERR_INVALID_GROUP_NAME; name_end = end; } if (r == 0) { + *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) { + r = ONIGERR_INVALID_GROUP_NAME; + goto err; + } + *rback_num *= sign; + *rname_end = name_end; *src = p; return 0; @@ -2691,20 +2966,41 @@ fetch_name(OnigCodePoint start_code, UChar** src, UChar* end, return r; } } +#endif /* USE_NAMED_GROUP */ + + +#ifdef PRINTF_ARGS +PRINTF_ARGS(static void onig_syntax_warn(ScanEnv *env, const char *fmt, ...), 2, 3); #endif static void -CC_ESC_WARN(ScanEnv* env, UChar *c) +onig_syntax_warn(ScanEnv *env, const char *fmt, ...) +{ + va_list args; + UChar buf[WARN_BUFSIZE]; + va_start(args, fmt); + onig_vsnprintf_with_pattern(buf, WARN_BUFSIZE, env->enc, + env->pattern, env->pattern_end, + fmt, args); + va_end(args); +#ifdef RUBY + if (env->sourcefile == NULL) + rb_warn("%s", (char *)buf); + else + rb_compile_warn(env->sourcefile, env->sourceline, "%s", (char *)buf); +#else + (*onig_warn)((char* )buf); +#endif +} + +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); + onig_syntax_warn(env, "character class has '%s' without escape", c); } } @@ -2713,37 +3009,60 @@ 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); + if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_WARN_CC_OP_NOT_ESCAPED)) { + onig_syntax_warn(env, "regular expression has '%s' without escape", c); + } +} + +#ifndef RTEST +# define RTEST(v) 1 +#endif + +static void +CC_DUP_WARN(ScanEnv *env, OnigCodePoint from ARG_UNUSED, OnigCodePoint to ARG_UNUSED) +{ + if (onig_warn == onig_null_warn || !RTEST(ruby_verbose)) return ; + + if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_WARN_CC_DUP) && + !(env->warnings_flag & ONIG_SYN_WARN_CC_DUP)) { +#ifdef WARN_ALL_CC_DUP + onig_syntax_warn(env, "character class has duplicated range: %04x-%04x", from, to); +#else + env->warnings_flag |= ONIG_SYN_WARN_CC_DUP; + onig_syntax_warn(env, "character class has duplicated range"); +#endif } } +static void +UNKNOWN_ESC_WARN(ScanEnv *env, int c) +{ + if (onig_warn == onig_null_warn || !RTEST(ruby_verbose)) return ; + onig_syntax_warn(env, "Unknown escape \\%c is ignored", c); +} + static UChar* find_str_position(OnigCodePoint s[], int n, UChar* from, UChar* to, - UChar **next, OnigEncoding enc) + 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 + enc_len(enc, p, to); + q = p + enclen(enc, p, to); 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 += enc_len(enc, q, to); + x = ONIGENC_MBC_TO_CODE(enc, q, to); + if (x != s[i]) break; + q += enclen(enc, q, to); } if (i >= n) { - if (IS_NOT_NULL(next)) - *next = q; - return p; + if (IS_NOT_NULL(next)) + *next = q; + return p; } } p = q; @@ -2753,7 +3072,7 @@ find_str_position(OnigCodePoint s[], int n, UChar* from, UChar* to, static int str_exist_check_with_esc(OnigCodePoint s[], int n, UChar* from, UChar* to, - OnigCodePoint bad, OnigEncoding enc, OnigSyntaxType* syn) + OnigCodePoint bad, OnigEncoding enc, const OnigSyntaxType* syn) { int i, in_esc; OnigCodePoint x; @@ -2764,25 +3083,25 @@ str_exist_check_with_esc(OnigCodePoint s[], int n, UChar* from, UChar* to, while (p < to) { if (in_esc) { in_esc = 0; - p += enc_len(enc, p, to); + p += enclen(enc, p, to); } else { x = ONIGENC_MBC_TO_CODE(enc, p, to); - q = p + enc_len(enc, p, to); + q = p + enclen(enc, p, to); 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 += enc_len(enc, q, to); - } - if (i >= n) return 1; - p += enc_len(enc, p, to); + 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, to); + } + if (i >= n) return 1; + p += enclen(enc, p, to); } 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; + x = ONIGENC_MBC_TO_CODE(enc, p, to); + if (x == bad) return 0; + else if (x == MC_ESC(syn)) in_esc = 1; + p = q; } } } @@ -2794,7 +3113,7 @@ fetch_token_in_cc(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) { int num; OnigCodePoint c, c2; - OnigSyntaxType* syn = env->syntax; + const OnigSyntaxType* syn = env->syntax; OnigEncoding enc = env->enc; UChar* prev; UChar* p = *src; @@ -2872,21 +3191,26 @@ fetch_token_in_cc(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) 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' ? 1 : 0); - - if (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 ? 1 : 0); - } - else - PUNFETCH; - } + IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_P_BRACE_CHAR_PROPERTY)) { + PINC; + tok->type = TK_CHAR_PROPERTY; + tok->u.prop.not = (c == 'P' ? 1 : 0); + + 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 ? 1 : 0); + } + else + PUNFETCH; + } + } + else { + onig_syntax_warn(env, "invalid Unicode Property \\%c", c); } break; @@ -2895,35 +3219,35 @@ fetch_token_in_cc(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) prev = p; if (PPEEK_IS('{') && IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_X_BRACE_HEX8)) { - PINC; - num = scan_unsigned_hexadecimal_number(&p, end, 8, enc); - if (num < 0) return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE; - if (!PEND) { + PINC; + num = scan_unsigned_hexadecimal_number(&p, end, 0, 8, enc); + if (num < 0) return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE; + if (!PEND) { c2 = PPEEK; if (ONIGENC_IS_CODE_XDIGIT(enc, c2)) return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE; } - if (p > prev + enc_len(enc, prev, end) && !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; - } + if (p > prev + enclen(enc, prev, end) && !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, 2, enc); - if (num < 0) 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 = 16; - tok->u.c = num; + num = scan_unsigned_hexadecimal_number(&p, end, 0, 2, enc); + if (num < 0) 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 = 16; + tok->u.c = num; } break; @@ -2932,40 +3256,68 @@ fetch_token_in_cc(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) prev = p; if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_U_HEX4)) { - num = scan_unsigned_hexadecimal_number(&p, end, 4, enc); - if (num < 0) return ONIGERR_TOO_BIG_NUMBER; - 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; + num = scan_unsigned_hexadecimal_number(&p, end, 4, 4, enc); + if (num < -1) return ONIGERR_TOO_SHORT_DIGITS; + else if (num < 0) return ONIGERR_TOO_BIG_NUMBER; + 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 '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 (ONIGENC_IS_CODE_DIGIT(enc, c2) && c2 < '8') + return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE; + } + + if (p > prev + enclen(enc, prev, end) && !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 '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) 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; + PUNFETCH; + prev = p; + num = scan_unsigned_octal_number(&p, end, 3, enc); + if (num < 0 || 0xff < num) 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); + num = fetch_escaped_value(&p, end, env, &c2); if (num < 0) return num; - if (tok->u.c != num) { - tok->u.code = (OnigCodePoint )num; - tok->type = TK_CODE_POINT; + if ((OnigCodePoint )tok->u.c != c2) { + tok->u.code = (OnigCodePoint )c2; + tok->type = TK_CODE_POINT; } break; } @@ -2973,30 +3325,30 @@ fetch_token_in_cc(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) 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 readed */ + 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; + tok->type = TK_POSIX_BRACKET_OPEN; } else { - PUNFETCH; - goto cc_in_cc; + 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; + tok->type = TK_CC_CC_OPEN; } else { - CC_ESC_WARN(env, (UChar* )"["); + CC_ESC_WARN(env, (UChar* )"["); } } } else if (c == '&') { if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_CCLASS_SET_OP) && - !PEND && (PPEEK_IS('&'))) { + !PEND && (PPEEK_IS('&'))) { PINC; tok->type = TK_CC_AND; } @@ -3007,13 +3359,88 @@ fetch_token_in_cc(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) return tok->type; } +#ifdef USE_NAMED_GROUP +static int +fetch_named_backref_token(OnigCodePoint c, OnigToken* tok, UChar** src, + UChar* end, ScanEnv* env) +{ + int r, num; + const OnigSyntaxType* syn = env->syntax; + UChar* prev; + UChar* p = *src; + UChar* name_end; + int* backs; + int back_num; + + prev = p; + +# ifdef USE_BACKREF_WITH_LEVEL + name_end = NULL_UCHARP; /* no need. escape gcc warning. */ + r = fetch_name_with_level(c, &p, end, &name_end, + env, &back_num, &tok->u.backref.level); + if (r == 1) tok->u.backref.exist_level = 1; + else tok->u.backref.exist_level = 0; +# else + r = fetch_name(&p, end, &name_end, env, &back_num, 1); +# endif + if (r < 0) return r; + + if (back_num != 0) { + if (back_num < 0) { + 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_MEM_NODES(env)[back_num])) + 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 = onig_name_to_group_numbers(env->reg, prev, name_end, &backs); + if (num <= 0) { + onig_scan_env_set_error_string(env, + ONIGERR_UNDEFINED_NAME_REFERENCE, prev, name_end); + 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_MEM_NODES(env)[backs[i]])) + return ONIGERR_INVALID_BACKREF; + } + } + + tok->type = TK_BACKREF; + tok->u.backref.by_name = 1; + if (num == 1 || IS_SYNTAX_BV(syn, ONIG_SYN_USE_LEFT_MOST_NAMED_GROUP)) { + tok->u.backref.num = 1; + tok->u.backref.ref1 = backs[0]; + } + else { + tok->u.backref.num = num; + tok->u.backref.refs = backs; + } + } + *src = p; + return 0; +} +#endif + static int fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) { int r, num; OnigCodePoint c; OnigEncoding enc = env->enc; - OnigSyntaxType* syn = env->syntax; + const OnigSyntaxType* syn = env->syntax; UChar* prev; UChar* p = *src; PFETCH_READY; @@ -3061,26 +3488,26 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) tok->u.repeat.upper = 1; greedy_check: if (!PEND && PPEEK_IS('?') && - IS_SYNTAX_OP(syn, ONIG_SYN_OP_QMARK_NON_GREEDY)) { - PFETCH(c); - tok->u.repeat.greedy = 0; - tok->u.repeat.possessive = 0; + IS_SYNTAX_OP(syn, ONIG_SYN_OP_QMARK_NON_GREEDY)) { + PFETCH(c); + tok->u.repeat.greedy = 0; + tok->u.repeat.possessive = 0; } else { possessive_check: - 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))) { - PFETCH(c); - tok->u.repeat.greedy = 1; - tok->u.repeat.possessive = 1; - } - else { - tok->u.repeat.greedy = 1; - tok->u.repeat.possessive = 0; - } + 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))) { + PFETCH(c); + tok->u.repeat.greedy = 1; + tok->u.repeat.possessive = 1; + } + else { + tok->u.repeat.greedy = 1; + tok->u.repeat.possessive = 0; + } } break; @@ -3090,10 +3517,10 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) if (r < 0) return r; /* error */ if (r == 0) goto greedy_check; else if (r == 2) { /* {n} */ - if (IS_SYNTAX_BV(syn, ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY)) - goto possessive_check; + if (IS_SYNTAX_BV(syn, ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY)) + goto possessive_check; - goto greedy_check; + goto greedy_check; } /* r == 1 : normal char */ break; @@ -3130,26 +3557,32 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) case 'b': if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_B_WORD_BOUND)) break; tok->type = TK_ANCHOR; - tok->u.anchor = ANCHOR_WORD_BOUND; + tok->u.anchor.subtype = ANCHOR_WORD_BOUND; + tok->u.anchor.ascii_range = IS_ASCII_RANGE(env->option) + && ! IS_WORD_BOUND_ALL_RANGE(env->option); break; case 'B': if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_B_WORD_BOUND)) break; tok->type = TK_ANCHOR; - tok->u.anchor = ANCHOR_NOT_WORD_BOUND; + tok->u.anchor.subtype = ANCHOR_NOT_WORD_BOUND; + tok->u.anchor.ascii_range = IS_ASCII_RANGE(env->option) + && ! IS_WORD_BOUND_ALL_RANGE(env->option); 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 = ANCHOR_WORD_BEGIN; + tok->u.anchor.subtype = ANCHOR_WORD_BEGIN; + tok->u.anchor.ascii_range = IS_ASCII_RANGE(env->option); break; case '>': if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END)) break; tok->type = TK_ANCHOR; - tok->u.anchor = ANCHOR_WORD_END; + tok->u.anchor.subtype = ANCHOR_WORD_END; + tok->u.anchor.ascii_range = IS_ASCII_RANGE(env->option); break; #endif @@ -3199,26 +3632,26 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_AZ_BUF_ANCHOR)) break; begin_buf: tok->type = TK_ANCHOR; - tok->u.subtype = ANCHOR_BEGIN_BUF; + tok->u.anchor.subtype = ANCHOR_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 = ANCHOR_SEMI_END_BUF; + tok->u.anchor.subtype = ANCHOR_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 = ANCHOR_END_BUF; + tok->u.anchor.subtype = ANCHOR_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 = ANCHOR_BEGIN_POSITION; + tok->u.anchor.subtype = ANCHOR_BEGIN_POSITION; break; case '`': @@ -3236,33 +3669,33 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) prev = p; if (PPEEK_IS('{') && IS_SYNTAX_OP(syn, ONIG_SYN_OP_ESC_X_BRACE_HEX8)) { - PINC; - num = scan_unsigned_hexadecimal_number(&p, end, 8, enc); - if (num < 0) return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE; - if (!PEND) { + PINC; + num = scan_unsigned_hexadecimal_number(&p, end, 0, 8, enc); + if (num < 0) return ONIGERR_TOO_BIG_WIDE_CHAR_VALUE; + if (!PEND) { if (ONIGENC_IS_CODE_XDIGIT(enc, PPEEK)) return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE; } - if ((p > prev + enc_len(enc, prev, end)) && !PEND && PPEEK_IS('}')) { - PINC; - tok->type = TK_CODE_POINT; - tok->u.code = (OnigCodePoint )num; - } - else { - /* can't read nothing or invalid format */ - p = prev; - } + if ((p > prev + enclen(enc, prev, end)) && !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, 2, enc); - if (num < 0) 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 = 16; - tok->u.c = num; + num = scan_unsigned_hexadecimal_number(&p, end, 0, 2, enc); + if (num < 0) 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 = 16; + tok->u.c = num; } break; @@ -3271,14 +3704,41 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) prev = p; if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_U_HEX4)) { - num = scan_unsigned_hexadecimal_number(&p, end, 4, enc); - if (num < 0) return ONIGERR_TOO_BIG_NUMBER; - 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; + num = scan_unsigned_hexadecimal_number(&p, end, 4, 4, enc); + if (num < -1) return ONIGERR_TOO_SHORT_DIGITS; + else if (num < 0) return ONIGERR_TOO_BIG_NUMBER; + 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 '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) { + OnigCodePoint c = PPEEK; + if (ONIGENC_IS_CODE_DIGIT(enc, c) && c < '8') + return ONIGERR_TOO_LONG_WIDE_CHAR_VALUE; + } + + if ((p > prev + enclen(enc, prev, end)) && !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; @@ -3291,159 +3751,181 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) 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_MEM_NODES(env)[num])) - return ONIGERR_INVALID_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_MEM_NODES(env)[num])) + 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_AT_LEVEL - tok->u.backref.exist_level = 0; + 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; + break; } skip_backref: if (c == '8' || c == '9') { - /* normal char */ - p = prev; PINC; - break; + /* 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) 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; + prev = p; + num = scan_unsigned_octal_number(&p, end, (c == '0' ? 2:3), enc); + if (num < 0 || 0xff < num) 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; + PINC; } break; #ifdef USE_NAMED_GROUP case 'k': - if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_K_NAMED_BACKREF)) { - PFETCH(c); - if (c == '<' || c == '\'') { - UChar* name_end; - int* backs; - - prev = p; - -#ifdef USE_BACKREF_AT_LEVEL - name_end = NULL_UCHARP; /* no need. escape gcc warning. */ - r = fetch_name_with_level((OnigCodePoint )c, &p, end, &name_end, - env, &tok->u.backref.level); - if (r == 1) tok->u.backref.exist_level = 1; - else tok->u.backref.exist_level = 0; -#else - r = fetch_name(&p, end, &name_end, env, 1); -#endif - if (r < 0) return r; - - num = onig_name_to_group_numbers(env->reg, prev, name_end, &backs); - if (num <= 0) { - onig_scan_env_set_error_string(env, - ONIGERR_UNDEFINED_NAME_REFERENCE, prev, name_end); - 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_MEM_NODES(env)[backs[i]])) - 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; + if (!PEND && IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_K_NAMED_BACKREF)) { + PFETCH(c); + if (c == '<' || c == '\'') { + r = fetch_named_backref_token(c, tok, &p, end, env); + if (r < 0) return r; + } + else { + PUNFETCH; + onig_syntax_warn(env, "invalid back reference"); + } } break; #endif -#ifdef USE_SUBEXP_CALL +#if defined(USE_SUBEXP_CALL) || defined(USE_NAMED_GROUP) case 'g': - if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_G_SUBEXP_CALL)) { - PFETCH(c); - if (c == '<' || c == '\'') { - UChar* name_end; - - prev = p; - r = fetch_name((OnigCodePoint )c, &p, end, &name_end, env, 1); - if (r < 0) return r; - - tok->type = TK_CALL; - tok->u.call.name = prev; - tok->u.call.name_end = name_end; - } - else - PUNFETCH; +# ifdef USE_NAMED_GROUP + if (!PEND && IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_G_BRACE_BACKREF)) { + PFETCH(c); + if (c == '{') { + r = fetch_named_backref_token(c, tok, &p, end, env); + if (r < 0) return r; + } + else + PUNFETCH; + } +# endif +# ifdef USE_SUBEXP_CALL + if (!PEND && IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_G_SUBEXP_CALL)) { + PFETCH(c); + if (c == '<' || c == '\'') { + int gnum = -1, rel = 0; + UChar* name_end; + OnigCodePoint cnext; + + cnext = PPEEK; + if (cnext == '0') { + PINC; + if (PPEEK_IS(get_name_end_code_point(c))) { /* \g<0>, \g'0' */ + PINC; + name_end = p; + gnum = 0; + } + } + else if (cnext == '+') { + PINC; + rel = 1; + } + prev = p; + if (gnum < 0) { + r = fetch_name((OnigCodePoint )c, &p, end, &name_end, env, &gnum, 1); + if (r < 0) return r; + } + + tok->type = TK_CALL; + tok->u.call.name = prev; + tok->u.call.name_end = name_end; + tok->u.call.gnum = gnum; + tok->u.call.rel = rel; + } + else { + onig_syntax_warn(env, "invalid subexp call"); + PUNFETCH; + } } +# endif break; #endif case 'Q': if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_Q_QUOTE)) { - tok->type = TK_QUOTE_OPEN; + tok->type = TK_QUOTE_OPEN; } break; case 'p': case 'P': if (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' ? 1 : 0); - - if (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 ? 1 : 0); - } - else - PUNFETCH; - } + IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_P_BRACE_CHAR_PROPERTY)) { + PINC; + tok->type = TK_CHAR_PROPERTY; + tok->u.prop.not = (c == 'P' ? 1 : 0); + + 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 ? 1 : 0); + } + else + PUNFETCH; + } + } + else { + onig_syntax_warn(env, "invalid Unicode Property \\%c", c); } break; - default: - PUNFETCH; - num = fetch_escaped_value(&p, end, env); - if (num < 0) return num; - /* set_raw: */ - if (tok->u.c != num) { - tok->type = TK_CODE_POINT; - tok->u.code = (OnigCodePoint )num; + case 'R': + if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_R_LINEBREAK)) { + tok->type = TK_LINEBREAK; + } + break; + + case 'X': + if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_X_EXTENDED_GRAPHEME_CLUSTER)) { + tok->type = TK_EXTENDED_GRAPHEME_CLUSTER; } - else { /* string */ - p = tok->backp + enc_len(enc, tok->backp, end); + break; + + case 'K': + if (IS_SYNTAX_OP2(syn, ONIG_SYN_OP2_ESC_CAPITAL_K_KEEP)) { + tok->type = TK_KEEP; + } + break; + + default: + { + OnigCodePoint c2; + + PUNFETCH; + num = fetch_escaped_value(&p, end, env, &c2); + if (num < 0) return num; + /* set_raw: */ + if ((OnigCodePoint )tok->u.c != c2) { + tok->type = TK_CODE_POINT; + tok->u.code = (OnigCodePoint )c2; + } + else { /* string */ + p = tok->backp + enclen(enc, tok->backp, end); + } } break; } @@ -3454,18 +3936,18 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) #ifdef USE_VARIABLE_META_CHARS if ((c != ONIG_INEFFECTIVE_META_CHAR) && - IS_SYNTAX_OP(syn, ONIG_SYN_OP_VARIABLE_META_CHARACTERS)) { + IS_SYNTAX_OP(syn, ONIG_SYN_OP_VARIABLE_META_CHARACTERS)) { if (c == MC_ANYCHAR(syn)) - goto any_char; + goto any_char; else if (c == MC_ANYTIME(syn)) - goto anytime; + goto anytime; else if (c == MC_ZERO_OR_ONE_TIME(syn)) - goto zero_or_one_time; + goto zero_or_one_time; else if (c == MC_ONE_OR_MORE_TIME(syn)) - goto one_or_more_time; + goto one_or_more_time; else if (c == MC_ANYCHAR_ANYTIME(syn)) { - tok->type = TK_ANYCHAR_ANYTIME; - goto out; + tok->type = TK_ANYCHAR_ANYTIME; + goto out; } } #endif @@ -3518,10 +4000,10 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) if (r < 0) return r; /* error */ if (r == 0) goto greedy_check; else if (r == 2) { /* {n} */ - if (IS_SYNTAX_BV(syn, ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY)) - goto possessive_check; + if (IS_SYNTAX_BV(syn, ONIG_SYN_FIXED_INTERVAL_IS_GREEDY_ONLY)) + goto possessive_check; - goto greedy_check; + goto greedy_check; } /* r == 1 : normal char */ break; @@ -3549,6 +4031,101 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) } goto start; } +#ifdef USE_PERL_SUBEXP_CALL + /* (?&name), (?n), (?R), (?0), (?+n), (?-n) */ + c = PPEEK; + if ((c == '&' || c == 'R' || ONIGENC_IS_CODE_DIGIT(enc, c)) && + IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_SUBEXP_CALL)) { + /* (?&name), (?n), (?R), (?0) */ + int gnum; + UChar *name; + UChar *name_end; + + if (c == 'R' || c == '0') { + PINC; /* skip 'R' / '0' */ + if (!PPEEK_IS(')')) { + r = ONIGERR_INVALID_GROUP_NAME; + onig_scan_env_set_error_string(env, r, p - 1, p + 1); + return r; + } + PINC; /* skip ')' */ + name_end = name = p; + gnum = 0; + } + else { + int numref = 1; + if (c == '&') { /* (?&name) */ + PINC; + numref = 0; /* don't allow number name */ + } + name = p; + r = fetch_name((OnigCodePoint )'(', &p, end, &name_end, env, &gnum, numref); + if (r < 0) return r; + } + + tok->type = TK_CALL; + tok->u.call.name = name; + tok->u.call.name_end = name_end; + tok->u.call.gnum = gnum; + tok->u.call.rel = 0; + break; + } + else if ((c == '-' || c == '+') && + IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_SUBEXP_CALL)) { + /* (?+n), (?-n) */ + int gnum; + UChar *name; + UChar *name_end; + OnigCodePoint cnext; + PFETCH_READY; + + PINC; /* skip '-' / '+' */ + cnext = PPEEK; + if (ONIGENC_IS_CODE_DIGIT(enc, cnext)) { + if (c == '-') PUNFETCH; + name = p; + r = fetch_name((OnigCodePoint )'(', &p, end, &name_end, env, &gnum, 1); + if (r < 0) return r; + + tok->type = TK_CALL; + tok->u.call.name = name; + tok->u.call.name_end = name_end; + tok->u.call.gnum = gnum; + tok->u.call.rel = 1; + break; + } + } +#endif /* USE_PERL_SUBEXP_CALL */ +#ifdef USE_CAPITAL_P_NAMED_GROUP + if (PPEEK_IS('P') && + IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_CAPITAL_P_NAMED_GROUP)) { + int gnum; + UChar *name; + UChar *name_end; + PFETCH_READY; + + PINC; /* skip 'P' */ + if (PEND) return ONIGERR_UNDEFINED_GROUP_OPTION; + PFETCH(c); + if (c == '=') { /* (?P=name): backref */ + r = fetch_named_backref_token((OnigCodePoint )'(', tok, &p, end, env); + if (r < 0) return r; + break; + } + else if (c == '>') { /* (?P>name): subexp call */ + name = p; + r = fetch_name((OnigCodePoint )'(', &p, end, &name_end, env, &gnum, 0); + if (r < 0) return r; + + tok->type = TK_CALL; + tok->u.call.name = name; + tok->u.call.name_end = name_end; + tok->u.call.gnum = gnum; + tok->u.call.rel = 0; + break; + } + } +#endif /* USE_CAPITAL_P_NAMED_GROUP */ PUNFETCH; } @@ -3564,15 +4141,15 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) case '^': if (! IS_SYNTAX_OP(syn, ONIG_SYN_OP_LINE_ANCHOR)) break; tok->type = TK_ANCHOR; - tok->u.subtype = (IS_SINGLELINE(env->option) - ? ANCHOR_BEGIN_BUF : ANCHOR_BEGIN_LINE); + tok->u.anchor.subtype = (IS_SINGLELINE(env->option) + ? ANCHOR_BEGIN_BUF : ANCHOR_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->option) - ? ANCHOR_SEMI_END_BUF : ANCHOR_END_LINE); + tok->u.anchor.subtype = (IS_SINGLELINE(env->option) + ? ANCHOR_SEMI_END_BUF : ANCHOR_END_LINE); break; case '[': @@ -3582,24 +4159,24 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) case ']': if (*src > env->pattern) /* /].../ is allowed. */ - CLOSE_BRACKET_WITHOUT_ESC_WARN(env, (UChar* )"]"); + CLOSE_BRACKET_WITHOUT_ESC_WARN(env, (UChar* )"]"); break; case '#': if (IS_EXTEND(env->option)) { - while (!PEND) { - PFETCH(c); - if (ONIGENC_IS_CODE_NEWLINE(enc, c)) - break; - } - goto start; - break; + 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->option)) - goto start; + goto start; break; default: @@ -3616,7 +4193,8 @@ fetch_token(OnigToken* tok, UChar** src, UChar* end, ScanEnv* env) } static int -add_ctype_to_cc_by_range(CClassNode* cc, int ctype, int not, OnigEncoding enc, +add_ctype_to_cc_by_range(CClassNode* cc, int ctype ARG_UNUSED, int not, + ScanEnv* env, OnigCodePoint sb_out, const OnigCodePoint mbr[]) { int i, r; @@ -3626,26 +4204,25 @@ add_ctype_to_cc_by_range(CClassNode* cc, int ctype, int not, OnigEncoding enc, 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_TO(mbr, i)) i++; - else 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++; - } + 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), env, j, + ONIGENC_CODE_RANGE_TO(mbr, i)); + if (r != 0) return r; + i++; + } - goto sb_end; - } - BITSET_SET_BIT(cc->bs, j); + goto sb_end; + } + BITSET_SET_BIT_CHKDUP(cc->bs, j); } } sb_end: for ( ; i < n; i++) { - r = add_code_range_to_buf(&(cc->mbuf), + r = add_code_range_to_buf(&(cc->mbuf), env, ONIGENC_CODE_RANGE_FROM(mbr, i), ONIGENC_CODE_RANGE_TO(mbr, i)); if (r != 0) return r; @@ -3656,16 +4233,16 @@ add_ctype_to_cc_by_range(CClassNode* cc, int ctype, int not, OnigEncoding enc, 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); + j < ONIGENC_CODE_RANGE_FROM(mbr, i); j++) { + if (j >= sb_out) { + goto sb_end2; + } + BITSET_SET_BIT_CHKDUP(cc->bs, j); } prev = ONIGENC_CODE_RANGE_TO(mbr, i) + 1; } for (j = prev; j < sb_out; j++) { - BITSET_SET_BIT(cc->bs, j); + BITSET_SET_BIT_CHKDUP(cc->bs, j); } sb_end2: @@ -3673,14 +4250,14 @@ add_ctype_to_cc_by_range(CClassNode* cc, int ctype, int not, OnigEncoding enc, for (i = 0; i < n; i++) { if (prev < ONIGENC_CODE_RANGE_FROM(mbr, i)) { - r = add_code_range_to_buf(&(cc->mbuf), prev, + r = add_code_range_to_buf(&(cc->mbuf), env, prev, ONIGENC_CODE_RANGE_FROM(mbr, i) - 1); - if (r != 0) return r; + if (r != 0) return r; } prev = ONIGENC_CODE_RANGE_TO(mbr, i) + 1; } if (prev < 0x7fffffff) { - r = add_code_range_to_buf(&(cc->mbuf), prev, 0x7fffffff); + r = add_code_range_to_buf(&(cc->mbuf), env, prev, 0x7fffffff); if (r != 0) return r; } } @@ -3689,8 +4266,9 @@ add_ctype_to_cc_by_range(CClassNode* cc, int ctype, int not, OnigEncoding enc, } static int -add_ctype_to_cc(CClassNode* cc, int ctype, int not, ScanEnv* env) +add_ctype_to_cc(CClassNode* cc, int ctype, int not, int ascii_range, ScanEnv* env) { + int maxcode; int c, r; const OnigCodePoint *ranges; OnigCodePoint sb_out; @@ -3698,12 +4276,46 @@ add_ctype_to_cc(CClassNode* cc, int ctype, int not, ScanEnv* env) r = ONIGENC_GET_CTYPE_CODE_RANGE(enc, ctype, &sb_out, &ranges); if (r == 0) { - return add_ctype_to_cc_by_range(cc, ctype, not, env->enc, sb_out, ranges); + if (ascii_range) { + CClassNode ccwork; + initialize_cclass(&ccwork); + r = add_ctype_to_cc_by_range(&ccwork, ctype, not, env, sb_out, + ranges); + if (r == 0) { + if (not) { + r = add_code_range_to_buf0(&(ccwork.mbuf), env, 0x80, ONIG_LAST_CODE_POINT, FALSE); + } + else { + CClassNode ccascii; + initialize_cclass(&ccascii); + if (ONIGENC_MBC_MINLEN(env->enc) > 1) { + r = add_code_range(&(ccascii.mbuf), env, 0x00, 0x7F); + } + else { + bitset_set_range(env, ccascii.bs, 0x00, 0x7F); + r = 0; + } + if (r == 0) { + r = and_cclass(&ccwork, &ccascii, env); + } + if (IS_NOT_NULL(ccascii.mbuf)) bbuf_free(ccascii.mbuf); + } + if (r == 0) { + r = or_cclass(cc, &ccwork, env); + } + if (IS_NOT_NULL(ccwork.mbuf)) bbuf_free(ccwork.mbuf); + } + } + else { + r = add_ctype_to_cc_by_range(cc, ctype, not, env, sb_out, ranges); + } + return r; } else if (r != ONIG_NO_SUPPORT_CONFIG) { return r; } + maxcode = ascii_range ? 0x80 : SINGLE_BYTE_SIZE; r = 0; switch (ctype) { case ONIGENC_CTYPE_ALPHA: @@ -3719,15 +4331,15 @@ add_ctype_to_cc(CClassNode* cc, int ctype, int not, ScanEnv* env) case ONIGENC_CTYPE_ALNUM: if (not != 0) { for (c = 0; c < SINGLE_BYTE_SIZE; c++) { - if (! ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype)) - BITSET_SET_BIT(cc->bs, c); + if (! ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype)) + BITSET_SET_BIT_CHKDUP(cc->bs, c); } ADD_ALL_MULTI_BYTE_RANGE(enc, cc->mbuf); } else { for (c = 0; c < SINGLE_BYTE_SIZE; c++) { - if (ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype)) - BITSET_SET_BIT(cc->bs, c); + if (ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype)) + BITSET_SET_BIT_CHKDUP(cc->bs, c); } } break; @@ -3736,32 +4348,39 @@ add_ctype_to_cc(CClassNode* cc, int ctype, int not, ScanEnv* env) case ONIGENC_CTYPE_PRINT: if (not != 0) { for (c = 0; c < SINGLE_BYTE_SIZE; c++) { - if (! ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype)) - BITSET_SET_BIT(cc->bs, c); + if (! ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype) + || c >= maxcode) + BITSET_SET_BIT_CHKDUP(cc->bs, c); } + if (ascii_range) + ADD_ALL_MULTI_BYTE_RANGE(enc, cc->mbuf); } else { - for (c = 0; c < SINGLE_BYTE_SIZE; c++) { - if (ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype)) - BITSET_SET_BIT(cc->bs, c); + for (c = 0; c < maxcode; c++) { + if (ONIGENC_IS_CODE_CTYPE(enc, (OnigCodePoint )c, ctype)) + BITSET_SET_BIT_CHKDUP(cc->bs, c); } - ADD_ALL_MULTI_BYTE_RANGE(enc, cc->mbuf); + if (! ascii_range) + ADD_ALL_MULTI_BYTE_RANGE(enc, cc->mbuf); } break; case ONIGENC_CTYPE_WORD: if (not == 0) { - for (c = 0; c < SINGLE_BYTE_SIZE; c++) { - if (IS_CODE_SB_WORD(enc, c)) BITSET_SET_BIT(cc->bs, c); + for (c = 0; c < maxcode; c++) { + if (ONIGENC_IS_CODE_WORD(enc, c)) BITSET_SET_BIT_CHKDUP(cc->bs, c); } - ADD_ALL_MULTI_BYTE_RANGE(enc, cc->mbuf); + if (! ascii_range) + ADD_ALL_MULTI_BYTE_RANGE(enc, cc->mbuf); } else { for (c = 0; c < SINGLE_BYTE_SIZE; c++) { - if ((ONIGENC_CODE_TO_MBCLEN(enc, c) > 0) /* 0: invalid code point */ - && ! ONIGENC_IS_CODE_WORD(enc, c)) - BITSET_SET_BIT(cc->bs, c); + if ((ONIGENC_CODE_TO_MBCLEN(enc, c) > 0) /* check invalid code point */ + && (! ONIGENC_IS_CODE_WORD(enc, c) || c >= maxcode)) + BITSET_SET_BIT_CHKDUP(cc->bs, c); } + if (ascii_range) + ADD_ALL_MULTI_BYTE_RANGE(enc, cc->mbuf); } break; @@ -3774,38 +4393,38 @@ add_ctype_to_cc(CClassNode* cc, int ctype, int not, ScanEnv* env) } static int -parse_posix_bracket(CClassNode* cc, UChar** src, UChar* end, ScanEnv* env) +parse_posix_bracket(CClassNode* cc, CClassNode* asc_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 } + static const PosixBracketEntryType PBS[] = { + POSIX_BRACKET_ENTRY_INIT("alnum", ONIGENC_CTYPE_ALNUM), + POSIX_BRACKET_ENTRY_INIT("alpha", ONIGENC_CTYPE_ALPHA), + POSIX_BRACKET_ENTRY_INIT("blank", ONIGENC_CTYPE_BLANK), + POSIX_BRACKET_ENTRY_INIT("cntrl", ONIGENC_CTYPE_CNTRL), + POSIX_BRACKET_ENTRY_INIT("digit", ONIGENC_CTYPE_DIGIT), + POSIX_BRACKET_ENTRY_INIT("graph", ONIGENC_CTYPE_GRAPH), + POSIX_BRACKET_ENTRY_INIT("lower", ONIGENC_CTYPE_LOWER), + POSIX_BRACKET_ENTRY_INIT("print", ONIGENC_CTYPE_PRINT), + POSIX_BRACKET_ENTRY_INIT("punct", ONIGENC_CTYPE_PUNCT), + POSIX_BRACKET_ENTRY_INIT("space", ONIGENC_CTYPE_SPACE), + POSIX_BRACKET_ENTRY_INIT("upper", ONIGENC_CTYPE_UPPER), + POSIX_BRACKET_ENTRY_INIT("xdigit", ONIGENC_CTYPE_XDIGIT), + POSIX_BRACKET_ENTRY_INIT("ascii", ONIGENC_CTYPE_ASCII), + POSIX_BRACKET_ENTRY_INIT("word", ONIGENC_CTYPE_WORD), }; - PosixBracketEntryType *pb; + const PosixBracketEntryType *pb; int not, i, r; + int ascii_range; OnigCodePoint c; OnigEncoding enc = env->enc; UChar *p = *src; - PFETCH_READY; if (PPEEK_IS('^')) { - PINC; + PINC_S; not = 1; } else @@ -3814,16 +4433,26 @@ parse_posix_bracket(CClassNode* cc, UChar** src, UChar* end, ScanEnv* env) 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++) { + ascii_range = IS_ASCII_RANGE(env->option) && + ! IS_POSIX_BRACKET_ALL_RANGE(env->option); + for (pb = PBS; pb < PBS + numberof(PBS); 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; + return ONIGERR_INVALID_POSIX_BRACKET_TYPE; - r = add_ctype_to_cc(cc, pb->ctype, not, env); + r = add_ctype_to_cc(cc, pb->ctype, not, ascii_range, env); if (r != 0) return r; - PINC; PINC; + if (IS_NOT_NULL(asc_cc)) { + if (pb->ctype != ONIGENC_CTYPE_WORD && + pb->ctype != ONIGENC_CTYPE_ASCII && + !ascii_range) + r = add_ctype_to_cc(asc_cc, pb->ctype, not, ascii_range, env); + if (r != 0) return r; + } + + PINC_S; PINC_S; *src = p; return 0; } @@ -3833,15 +4462,15 @@ parse_posix_bracket(CClassNode* cc, UChar** src, UChar* end, ScanEnv* env) c = 0; i = 0; while (!PEND && ((c = PPEEK) != ':') && c != ']') { - PINC; + PINC_S; if (++i > POSIX_BRACKET_CHECK_LIMIT_LENGTH) break; } if (c == ':' && ! PEND) { - PINC; + PINC_S; if (! PEND) { - PFETCH(c); + PFETCH_S(c); if (c == ']') - return ONIGERR_INVALID_POSIX_BRACKET_TYPE; + return ONIGERR_INVALID_POSIX_BRACKET_TYPE; } } @@ -3855,14 +4484,13 @@ fetch_char_property_to_ctype(UChar** src, UChar* end, ScanEnv* env) OnigCodePoint c; OnigEncoding enc = env->enc; UChar *prev, *start, *p = *src; - PFETCH_READY; - r = 0; + r = ONIGERR_INVALID_CHAR_PROPERTY_NAME; start = prev = p; while (!PEND) { prev = p; - PFETCH(c); + PFETCH_S(c); if (c == '}') { r = ONIGENC_PROPERTY_NAME_TO_CTYPE(enc, start, prev); if (r < 0) break; @@ -3871,7 +4499,6 @@ fetch_char_property_to_ctype(UChar** src, UChar* end, ScanEnv* env) return r; } else if (c == '(' || c == ')' || c == '{' || c == '|') { - r = ONIGERR_INVALID_CHAR_PROPERTY_NAME; break; } } @@ -3880,9 +4507,11 @@ fetch_char_property_to_ctype(UChar** src, UChar* end, ScanEnv* env) return r; } +static int cclass_case_fold(Node** np, CClassNode* cc, CClassNode* asc_cc, ScanEnv* env); + static int parse_char_property(Node** np, OnigToken* tok, UChar** src, UChar* end, - ScanEnv* env) + ScanEnv* env) { int r, ctype; CClassNode* cc; @@ -3893,11 +4522,15 @@ parse_char_property(Node** np, OnigToken* tok, UChar** src, UChar* end, *np = node_new_cclass(); CHECK_NULL_RETURN_MEMERR(*np); cc = NCCLASS(*np); - r = add_ctype_to_cc(cc, ctype, 0, env); + r = add_ctype_to_cc(cc, ctype, 0, 0, env); if (r != 0) return r; if (tok->u.prop.not != 0) NCCLASS_SET_NOT(cc); - return 0; + if (IS_IGNORECASE(env->option)) { + if (ctype != ONIGENC_CTYPE_ASCII) + r = cclass_case_fold(np, cc, cc, env); + } + return r; } @@ -3915,8 +4548,9 @@ enum CCVALTYPE { }; static int -next_state_class(CClassNode* cc, OnigCodePoint* vs, enum CCVALTYPE* type, - enum CCSTATE* state, ScanEnv* env) +next_state_class(CClassNode* cc, CClassNode* asc_cc, + OnigCodePoint* vs, enum CCVALTYPE* type, + enum CCSTATE* state, ScanEnv* env) { int r; @@ -3924,11 +4558,18 @@ next_state_class(CClassNode* cc, OnigCodePoint* vs, enum CCVALTYPE* type, 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)); + if (*type == CCV_SB) { + BITSET_SET_BIT_CHKDUP(cc->bs, (int )(*vs)); + if (IS_NOT_NULL(asc_cc)) + BITSET_SET_BIT(asc_cc->bs, (int )(*vs)); + } else if (*type == CCV_CODE_POINT) { r = add_code_range(&(cc->mbuf), env, *vs, *vs); if (r < 0) return r; + if (IS_NOT_NULL(asc_cc)) { + r = add_code_range0(&(asc_cc->mbuf), env, *vs, *vs, 0); + if (r < 0) return r; + } } } @@ -3938,60 +4579,71 @@ next_state_class(CClassNode* cc, OnigCodePoint* vs, enum CCVALTYPE* type, } static int -next_state_val(CClassNode* cc, OnigCodePoint *vs, OnigCodePoint v, - int* vs_israw, int v_israw, - enum CCVALTYPE intype, enum CCVALTYPE* type, - enum CCSTATE* state, ScanEnv* env) +next_state_val(CClassNode* cc, CClassNode* asc_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) - BITSET_SET_BIT(cc->bs, (int )(*vs)); + if (*type == CCV_SB) { + BITSET_SET_BIT_CHKDUP(cc->bs, (int )(*from)); + if (IS_NOT_NULL(asc_cc)) + BITSET_SET_BIT(asc_cc->bs, (int )(*from)); + } else if (*type == CCV_CODE_POINT) { - r = add_code_range(&(cc->mbuf), env, *vs, *vs); + r = add_code_range(&(cc->mbuf), env, *from, *from); if (r < 0) return r; + if (IS_NOT_NULL(asc_cc)) { + r = add_code_range0(&(asc_cc->mbuf), env, *from, *from, 0); + if (r < 0) return r; + } } break; case CCS_RANGE: if (intype == *type) { if (intype == CCV_SB) { - if (*vs > 0xff || v > 0xff) - return ONIGERR_INVALID_WIDE_CHAR_VALUE; - - if (*vs > v) { - 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 )*vs, (int )v); + 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(env, cc->bs, (int )*from, (int )to); + if (IS_NOT_NULL(asc_cc)) + bitset_set_range(env, asc_cc->bs, (int )*from, (int )to); } else { - r = add_code_range(&(cc->mbuf), env, *vs, v); - if (r < 0) return r; + r = add_code_range(&(cc->mbuf), env, *from, to); + if (r < 0) return r; + if (IS_NOT_NULL(asc_cc)) { + r = add_code_range0(&(asc_cc->mbuf), env, *from, to, 0); + if (r < 0) return r; + } } } else { -#if 0 - if (intype == CCV_CODE_POINT && *type == CCV_SB) { -#endif - if (*vs > v) { - 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 )*vs, (int )(v < 0xff ? v : 0xff)); - r = add_code_range(&(cc->mbuf), env, (OnigCodePoint )*vs, v); - if (r < 0) return r; -#if 0 + 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(env, cc->bs, (int )*from, (int )(to < 0xff ? to : 0xff)); + r = add_code_range(&(cc->mbuf), env, (OnigCodePoint )*from, to); + if (r < 0) return r; + if (IS_NOT_NULL(asc_cc)) { + bitset_set_range(env, asc_cc->bs, (int )*from, (int )(to < 0xff ? to : 0xff)); + r = add_code_range0(&(asc_cc->mbuf), env, (OnigCodePoint )*from, to, 0); + if (r < 0) return r; } - else - return ONIGERR_MISMATCH_CODE_LENGTH_IN_CLASS_RANGE; -#endif } ccs_range_end: *state = CCS_COMPLETE; @@ -4006,21 +4658,20 @@ next_state_val(CClassNode* cc, OnigCodePoint *vs, OnigCodePoint v, break; } - *vs_israw = v_israw; - *vs = v; - *type = intype; + *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) + ScanEnv* env) { int in_esc; OnigCodePoint code; OnigEncoding enc = env->enc; UChar* p = from; - PFETCH_READY; in_esc = 0; while (! PEND) { @@ -4028,7 +4679,7 @@ code_exist_check(OnigCodePoint c, UChar* from, UChar* end, int ignore_escaped, in_esc = 0; } else { - PFETCH(code); + PFETCH_S(code); if (code == c) return 1; if (code == MC_ESC(env->syntax)) in_esc = 1; } @@ -4037,22 +4688,27 @@ code_exist_check(OnigCodePoint c, UChar* from, UChar* end, int ignore_escaped, } static int -parse_char_class(Node** np, OnigToken* tok, UChar** src, UChar* end, - ScanEnv* env) +parse_char_class(Node** np, Node** asc_np, OnigToken* tok, UChar** src, UChar* end, + ScanEnv* env) { int r, neg, len, fetched, and_start; OnigCodePoint v, vs; UChar *p; Node* node; + Node* asc_node; CClassNode *cc, *prev_cc; - CClassNode work_cc; + CClassNode *asc_cc, *asc_prev_cc; + CClassNode work_cc, asc_work_cc; enum CCSTATE state; enum CCVALTYPE val_type, in_type; int val_israw, in_israw; - prev_cc = (CClassNode* )NULL; - *np = NULL_NODE; + *np = *asc_np = NULL_NODE; + env->parse_depth++; + if (env->parse_depth > ParseDepthLimit) + return ONIGERR_PARSE_DEPTH_LIMIT_OVER; + prev_cc = asc_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; @@ -4076,6 +4732,16 @@ parse_char_class(Node** np, OnigToken* tok, UChar** src, UChar* end, CHECK_NULL_RETURN_MEMERR(node); cc = NCCLASS(node); + if (IS_IGNORECASE(env->option)) { + *asc_np = asc_node = node_new_cclass(); + CHECK_NULL_RETURN_MEMERR(asc_node); + asc_cc = NCCLASS(asc_node); + } + else { + asc_node = NULL_NODE; + asc_cc = NULL; + } + and_start = 0; state = CCS_START; p = *src; @@ -4083,13 +4749,17 @@ parse_char_class(Node** np, OnigToken* tok, UChar** src, UChar* end, fetched = 0; switch (r) { case TK_CHAR: - len = ONIGENC_CODE_TO_MBCLEN(env->enc, tok->u.c); - if (len > 1) { - in_type = CCV_CODE_POINT; + if ((tok->u.code >= SINGLE_BYTE_SIZE) || + (len = ONIGENC_CODE_TO_MBCLEN(env->enc, tok->u.c)) > 1) { + in_type = CCV_CODE_POINT; + } + else if (len < 0) { + r = len; + goto err; } else { sb_char: - in_type = CCV_SB; + in_type = CCV_SB; } v = (OnigCodePoint )tok->u.c; in_israw = 0; @@ -4099,53 +4769,54 @@ parse_char_class(Node** np, OnigToken* tok, UChar** src, UChar* end, case TK_RAW_BYTE: /* tok->base != 0 : octal or hexadec. */ if (! ONIGENC_IS_SINGLEBYTE(env->enc) && tok->base != 0) { - UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN]; - UChar* bufe = buf + ONIGENC_CODE_TO_MBC_MAXLEN; - UChar* psave = p; - int i, 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; - } - - len = enc_len(env->enc, buf, buf+i); - 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; - } + UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN]; + UChar* bufe = buf + ONIGENC_CODE_TO_MBC_MAXLEN; + UChar* psave = p; + int i, base = tok->base; + + buf[0] = (UChar )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] = (UChar )tok->u.c; + } + + if (i < ONIGENC_MBC_MINLEN(env->enc)) { + r = ONIGERR_TOO_SHORT_MULTI_BYTE_STRING; + goto err; + } + + len = enclen(env->enc, buf, buf + i); + 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++) { + (void)fetch_token_in_cc(tok, &p, end, env); + /* no need to check the return value (already checked above) */ + } + 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; + v = (OnigCodePoint )tok->u.c; raw_single: - in_type = CCV_SB; + in_type = CCV_SB; } in_israw = 1; goto val_entry2; @@ -4157,141 +4828,174 @@ parse_char_class(Node** np, OnigToken* tok, UChar** src, UChar* end, val_entry: len = ONIGENC_CODE_TO_MBCLEN(env->enc, v); if (len < 0) { - r = len; - goto err; + 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); + r = next_state_val(cc, asc_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); + r = parse_posix_bracket(cc, asc_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; + 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); + r = add_ctype_to_cc(cc, tok->u.prop.ctype, tok->u.prop.not, + IS_ASCII_RANGE(env->option), env); if (r != 0) return r; + if (IS_NOT_NULL(asc_cc)) { + if (tok->u.prop.ctype != ONIGENC_CTYPE_WORD) + r = add_ctype_to_cc(asc_cc, tok->u.prop.ctype, tok->u.prop.not, + IS_ASCII_RANGE(env->option), env); + if (r != 0) return r; + } next_class: - r = next_state_class(cc, &vs, &val_type, &state, env); + r = next_state_class(cc, asc_cc, &vs, &val_type, &state, env); if (r != 0) goto err; break; case TK_CHAR_PROPERTY: { - int ctype; - - ctype = fetch_char_property_to_ctype(&p, end, env); - if (ctype < 0) return ctype; - r = add_ctype_to_cc(cc, ctype, tok->u.prop.not, env); - if (r != 0) return r; - goto next_class; + int ctype; + + ctype = fetch_char_property_to_ctype(&p, end, env); + if (ctype < 0) return ctype; + r = add_ctype_to_cc(cc, ctype, tok->u.prop.not, 0, env); + if (r != 0) return r; + if (IS_NOT_NULL(asc_cc)) { + if (ctype != ONIGENC_CTYPE_ASCII) + r = add_ctype_to_cc(asc_cc, ctype, tok->u.prop.not, 0, env); + if (r != 0) return r; + } + 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; - } - 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; + 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; + } - 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* )"-"); + if (val_type == CCV_CLASS) { + r = ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS; + goto err; + } - goto val_entry; + 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 sb_char; /* [!--x] is allowed */ + CC_ESC_WARN(env, (UChar* )"-"); + goto sb_char; /* [!--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 sb_char; /* [0-9-a] is allowed as [0-9\-a] */ - } - r = ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS; - goto err; + 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; + Node *anode, *aasc_node; + CClassNode* acc; - r = parse_char_class(&anode, tok, &p, end, env); - if (r != 0) goto cc_open_err; - acc = NCCLASS(anode); - r = or_cclass(cc, acc, env->enc); - - onig_node_free(anode); - cc_open_err: - if (r != 0) goto err; + r = parse_char_class(&anode, &aasc_node, tok, &p, end, env); + if (r == 0) { + acc = NCCLASS(anode); + r = or_cclass(cc, acc, env); + } + if (r == 0 && IS_NOT_NULL(aasc_node)) { + acc = NCCLASS(aasc_node); + r = or_cclass(asc_cc, acc, env); + } + onig_node_free(anode); + onig_node_free(aasc_node); + 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); + if (state == CCS_VALUE) { + r = next_state_val(cc, asc_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); + if (r != 0) goto err; + bbuf_free(cc->mbuf); + if (IS_NOT_NULL(asc_cc)) { + r = and_cclass(asc_prev_cc, asc_cc, env); + if (r != 0) goto err; + bbuf_free(asc_cc->mbuf); + } + } + else { + prev_cc = cc; + cc = &work_cc; + if (IS_NOT_NULL(asc_cc)) { + asc_prev_cc = asc_cc; + asc_cc = &asc_work_cc; + } + } + initialize_cclass(cc); + if (IS_NOT_NULL(asc_cc)) + initialize_cclass(asc_cc); } break; @@ -4314,22 +5018,34 @@ parse_char_class(Node** np, OnigToken* tok, UChar** src, UChar* end, } if (state == CCS_VALUE) { - r = next_state_val(cc, &vs, 0, &val_israw, 0, val_type, - &val_type, &state, env); + r = next_state_val(cc, asc_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); + r = and_cclass(prev_cc, cc, env); if (r != 0) goto err; bbuf_free(cc->mbuf); cc = prev_cc; + if (IS_NOT_NULL(asc_cc)) { + r = and_cclass(asc_prev_cc, asc_cc, env); + if (r != 0) goto err; + bbuf_free(asc_cc->mbuf); + asc_cc = asc_prev_cc; + } } - if (neg != 0) + if (neg != 0) { NCCLASS_SET_NOT(cc); - else + if (IS_NOT_NULL(asc_cc)) + NCCLASS_SET_NOT(asc_cc); + } + else { NCCLASS_CLEAR_NOT(cc); + if (IS_NOT_NULL(asc_cc)) + NCCLASS_CLEAR_NOT(asc_cc); + } if (IS_NCCLASS_NOT(cc) && IS_SYNTAX_BV(env->syntax, ONIG_SYN_NOT_NEWLINE_IN_NEGATIVE_CC)) { int is_empty; @@ -4343,35 +5059,43 @@ parse_char_class(Node** np, OnigToken* tok, UChar** src, UChar* end, 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); + BITSET_SET_BIT_CHKDUP(cc->bs, NEWLINE_CODE); + else { + r = add_code_range(&(cc->mbuf), env, NEWLINE_CODE, NEWLINE_CODE); + if (r < 0) goto err; + } } } } *src = p; + env->parse_depth--; return 0; err: if (cc != NCCLASS(*np)) bbuf_free(cc->mbuf); - onig_node_free(*np); + if (IS_NOT_NULL(asc_cc) && (asc_cc != NCCLASS(*asc_np))) + bbuf_free(asc_cc->mbuf); return r; } static int parse_subexp(Node** top, OnigToken* tok, int term, - UChar** src, UChar* end, ScanEnv* env); + UChar** src, UChar* end, ScanEnv* env); static int parse_enclose(Node** np, OnigToken* tok, int term, UChar** src, UChar* end, - ScanEnv* env) + ScanEnv* env) { - int r, num; - int list_capture; - Node *target; + int r = 0, num; + Node *target, *work1 = NULL, *work2 = NULL; OnigOptionType option; - OnigEncoding enc = env->enc; OnigCodePoint c; + OnigEncoding enc = env->enc; + +#ifdef USE_NAMED_GROUP + int list_capture; +#endif + UChar* p = *src; PFETCH_READY; @@ -4399,168 +5123,335 @@ parse_enclose(Node** np, OnigToken* tok, int term, UChar** src, UChar* end, case '=': *np = onig_node_new_anchor(ANCHOR_PREC_READ); break; - case '!': /* preceding read */ + case '!': /* preceding read */ *np = onig_node_new_anchor(ANCHOR_PREC_READ_NOT); break; - case '>': /* (?>...) stop backtrack */ + case '>': /* (?>...) stop backtrack */ *np = node_new_enclose(ENCLOSE_STOP_BACKTRACK); break; + case '~': /* (?~...) absent operator */ + if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_TILDE_ABSENT)) { + *np = node_new_enclose(ENCLOSE_ABSENT); + } + else { + return ONIGERR_UNDEFINED_GROUP_OPTION; + } + break; +#ifdef USE_NAMED_GROUP case '\'': if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP)) { - goto named_group1; + goto named_group1; } else - return ONIGERR_UNDEFINED_GROUP_OPTION; + return ONIGERR_UNDEFINED_GROUP_OPTION; + break; + +# ifdef USE_CAPITAL_P_NAMED_GROUP + case 'P': /* (?P<name>...) */ + if (!PEND && + IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_CAPITAL_P_NAMED_GROUP)) { + PFETCH(c); + if (c == '<') goto named_group1; + } + return ONIGERR_UNDEFINED_GROUP_OPTION; break; +# endif +#endif case '<': /* look behind (?<=...), (?<!...) */ + if (PEND) return ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS; PFETCH(c); if (c == '=') - *np = onig_node_new_anchor(ANCHOR_LOOK_BEHIND); + *np = onig_node_new_anchor(ANCHOR_LOOK_BEHIND); else if (c == '!') - *np = onig_node_new_anchor(ANCHOR_LOOK_BEHIND_NOT); + *np = onig_node_new_anchor(ANCHOR_LOOK_BEHIND_NOT); #ifdef USE_NAMED_GROUP - else { - if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP)) { - UChar *name; - UChar *name_end; - - PUNFETCH; - c = '<'; - - named_group1: - list_capture = 0; - - named_group2: - name = p; - r = fetch_name((OnigCodePoint )c, &p, end, &name_end, env, 0); - if (r < 0) return r; - - num = scan_env_add_mem_entry(env); - if (num < 0) return num; - if (list_capture != 0 && num >= BIT_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_enclose_memory(env->option, 1); - CHECK_NULL_RETURN_MEMERR(*np); - NENCLOSE(*np)->regnum = num; - if (list_capture != 0) - BIT_STATUS_ON_AT_SIMPLE(env->capture_history, num); - env->num_named++; - } - else { - return ONIGERR_UNDEFINED_GROUP_OPTION; - } + else { /* (?<name>...) */ + if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LT_NAMED_GROUP)) { + UChar *name; + UChar *name_end; + + PUNFETCH; + c = '<'; + + named_group1: + list_capture = 0; + +# ifdef USE_CAPTURE_HISTORY + named_group2: +# endif + name = p; + r = fetch_name((OnigCodePoint )c, &p, end, &name_end, env, &num, 0); + if (r < 0) return r; + + num = scan_env_add_mem_entry(env); + if (num < 0) return num; + if (list_capture != 0 && num >= (int )BIT_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_enclose_memory(env->option, 1); + CHECK_NULL_RETURN_MEMERR(*np); + NENCLOSE(*np)->regnum = num; + if (list_capture != 0) + BIT_STATUS_ON_AT_SIMPLE(env->capture_history, num); + env->num_named++; + } + else { + return ONIGERR_UNDEFINED_GROUP_OPTION; + } } #else else { - return ONIGERR_UNDEFINED_GROUP_OPTION; + return ONIGERR_UNDEFINED_GROUP_OPTION; } #endif break; +#ifdef USE_CAPTURE_HISTORY case '@': if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_ATMARK_CAPTURE_HISTORY)) { +# ifdef USE_NAMED_GROUP + if (!PEND && + 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; + } +# endif + *np = node_new_enclose_memory(env->option, 0); + CHECK_NULL_RETURN_MEMERR(*np); + num = scan_env_add_mem_entry(env); + if (num < 0) return num; + if (num >= (int )BIT_STATUS_BITS_NUM) + return ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY; + + NENCLOSE(*np)->regnum = num; + BIT_STATUS_ON_AT_SIMPLE(env->capture_history, num); + } + else { + return ONIGERR_UNDEFINED_GROUP_OPTION; + } + break; +#endif /* USE_CAPTURE_HISTORY */ + + case '(': /* conditional expression: (?(cond)yes), (?(cond)yes|no) */ + if (!PEND && + IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_LPAREN_CONDITION)) { + UChar *name = NULL; + UChar *name_end; + PFETCH(c); + if (ONIGENC_IS_CODE_DIGIT(enc, c)) { /* (n) */ + PUNFETCH; + r = fetch_name((OnigCodePoint )'(', &p, end, &name_end, env, &num, 1); + if (r < 0) return r; +#if 0 + /* Relative number is not currently supported. (same as Perl) */ + if (num < 0) { + num = BACKREF_REL_TO_ABS(num, env); + if (num <= 0) + return ONIGERR_INVALID_BACKREF; + } +#endif + if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_STRICT_CHECK_BACKREF)) { + if (num > env->num_mem || + IS_NULL(SCANENV_MEM_NODES(env)[num])) + return ONIGERR_INVALID_BACKREF; + } + } #ifdef USE_NAMED_GROUP - 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; - } + else if (c == '<' || c == '\'') { /* (<name>), ('name') */ + name = p; + r = fetch_named_backref_token(c, tok, &p, end, env); + if (r < 0) return r; + if (!PPEEK_IS(')')) return ONIGERR_UNDEFINED_GROUP_OPTION; + PINC; + + if (IS_SYNTAX_BV(env->syntax, ONIG_SYN_USE_LEFT_MOST_NAMED_GROUP)) { + num = tok->u.backref.ref1; + } + else { + /* FIXME: + * Use left most named group for now. This is the same as Perl. + * However this should use the same strategy as normal back- + * references on Ruby syntax; search right to left. */ + int len = tok->u.backref.num; + num = len > 1 ? tok->u.backref.refs[0] : tok->u.backref.ref1; + } + } #endif - *np = node_new_enclose_memory(env->option, 0); - CHECK_NULL_RETURN_MEMERR(*np); - num = scan_env_add_mem_entry(env); - if (num < 0) { - onig_node_free(*np); - return num; - } - else if (num >= BIT_STATUS_BITS_NUM) { - onig_node_free(*np); - return ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY; - } - NENCLOSE(*np)->regnum = num; - BIT_STATUS_ON_AT_SIMPLE(env->capture_history, num); + else + return ONIGERR_INVALID_CONDITION_PATTERN; + *np = node_new_enclose(ENCLOSE_CONDITION); + CHECK_NULL_RETURN_MEMERR(*np); + NENCLOSE(*np)->regnum = num; + if (IS_NOT_NULL(name)) NENCLOSE(*np)->state |= NST_NAME_REF; } - else { - return ONIGERR_UNDEFINED_GROUP_OPTION; + else + return ONIGERR_UNDEFINED_GROUP_OPTION; + break; + +#if 0 + case '|': /* branch reset: (?|...) */ + if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_QMARK_VBAR_BRANCH_RESET)) { + /* TODO */ } + else + return ONIGERR_UNDEFINED_GROUP_OPTION; break; +#endif + case '^': /* loads default options */ + if (!PEND && IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_PERL)) { + /* d-imsx */ + ONOFF(option, ONIG_OPTION_ASCII_RANGE, 1); + ONOFF(option, ONIG_OPTION_IGNORECASE, 1); + ONOFF(option, ONIG_OPTION_SINGLELINE, 0); + ONOFF(option, ONIG_OPTION_MULTILINE, 1); + ONOFF(option, ONIG_OPTION_EXTEND, 1); + PFETCH(c); + } +#if 0 + else if (!PEND && IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_RUBY)) { + /* d-imx */ + ONOFF(option, ONIG_OPTION_ASCII_RANGE, 0); + ONOFF(option, ONIG_OPTION_POSIX_BRACKET_ALL_RANGE, 0); + ONOFF(option, ONIG_OPTION_WORD_BOUND_ALL_RANGE, 0); + ONOFF(option, ONIG_OPTION_IGNORECASE, 1); + ONOFF(option, ONIG_OPTION_MULTILINE, 1); + ONOFF(option, ONIG_OPTION_EXTEND, 1); + PFETCH(c); + } +#endif + else { + return ONIGERR_UNDEFINED_GROUP_OPTION; + } + /* fall through */ #ifdef USE_POSIXLINE_OPTION case 'p': #endif case '-': case 'i': case 'm': case 's': case 'x': + case 'a': case 'd': case 'l': case 'u': { - int neg = 0; - - while (1) { - switch (c) { - case ':': - case ')': - break; - - case '-': neg = 1; break; - case 'x': ONOFF(option, ONIG_OPTION_EXTEND, neg); break; - case 'i': ONOFF(option, ONIG_OPTION_IGNORECASE, neg); break; - case 's': - if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_PERL)) { - ONOFF(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)) { - ONOFF(option, ONIG_OPTION_SINGLELINE, (neg == 0 ? 1 : 0)); - } - else if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_RUBY)) { - ONOFF(option, ONIG_OPTION_MULTILINE, neg); - } - else - return ONIGERR_UNDEFINED_GROUP_OPTION; - break; + int neg = 0; + + while (1) { + switch (c) { + case ':': + case ')': + break; + + case '-': neg = 1; break; + case 'x': ONOFF(option, ONIG_OPTION_EXTEND, neg); break; + case 'i': ONOFF(option, ONIG_OPTION_IGNORECASE, neg); break; + case 's': + if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_PERL)) { + ONOFF(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)) { + ONOFF(option, ONIG_OPTION_SINGLELINE, (neg == 0 ? 1 : 0)); + } + else if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_RUBY)) { + ONOFF(option, ONIG_OPTION_MULTILINE, neg); + } + else + return ONIGERR_UNDEFINED_GROUP_OPTION; + break; #ifdef USE_POSIXLINE_OPTION - case 'p': - ONOFF(option, ONIG_OPTION_MULTILINE|ONIG_OPTION_SINGLELINE, neg); - break; + case 'p': + ONOFF(option, ONIG_OPTION_MULTILINE|ONIG_OPTION_SINGLELINE, neg); + break; #endif - 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->option; - - env->option = option; - r = fetch_token(tok, &p, end, env); - if (r < 0) return r; - r = parse_subexp(&target, tok, term, &p, end, env); - env->option = prev; - if (r < 0) return r; - *np = node_new_option(option); - CHECK_NULL_RETURN_MEMERR(*np); - NENCLOSE(*np)->target = target; - *src = p; - return 0; - } - - if (PEND) return ONIGERR_END_PATTERN_IN_GROUP; - PFETCH(c); - } + + case 'a': /* limits \d, \s, \w and POSIX brackets to ASCII range */ + if ((IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_PERL) || + IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_RUBY)) && + (neg == 0)) { + ONOFF(option, ONIG_OPTION_ASCII_RANGE, 0); + ONOFF(option, ONIG_OPTION_POSIX_BRACKET_ALL_RANGE, 1); + ONOFF(option, ONIG_OPTION_WORD_BOUND_ALL_RANGE, 1); + } + else + return ONIGERR_UNDEFINED_GROUP_OPTION; + break; + + case 'u': + if ((IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_PERL) || + IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_RUBY)) && + (neg == 0)) { + ONOFF(option, ONIG_OPTION_ASCII_RANGE, 1); + ONOFF(option, ONIG_OPTION_POSIX_BRACKET_ALL_RANGE, 1); + ONOFF(option, ONIG_OPTION_WORD_BOUND_ALL_RANGE, 1); + } + else + return ONIGERR_UNDEFINED_GROUP_OPTION; + break; + + case 'd': + if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_PERL) && + (neg == 0)) { + ONOFF(option, ONIG_OPTION_ASCII_RANGE, 1); + } + else if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_RUBY) && + (neg == 0)) { + ONOFF(option, ONIG_OPTION_ASCII_RANGE, 0); + ONOFF(option, ONIG_OPTION_POSIX_BRACKET_ALL_RANGE, 0); + ONOFF(option, ONIG_OPTION_WORD_BOUND_ALL_RANGE, 0); + } + else + return ONIGERR_UNDEFINED_GROUP_OPTION; + break; + + case 'l': + if (IS_SYNTAX_OP2(env->syntax, ONIG_SYN_OP2_OPTION_PERL) && (neg == 0)) { + ONOFF(option, ONIG_OPTION_ASCII_RANGE, 1); + } + else + return ONIGERR_UNDEFINED_GROUP_OPTION; + break; + + 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->option; + + env->option = option; + r = fetch_token(tok, &p, end, env); + if (r < 0) { + env->option = prev; + return r; + } + r = parse_subexp(&target, tok, term, &p, end, env); + env->option = prev; + if (r < 0) return r; + *np = node_new_option(option); + CHECK_NULL_RETURN_MEMERR(*np); + NENCLOSE(*np)->target = target; + *src = p; + return 0; + } + + if (PEND) return ONIGERR_END_PATTERN_IN_GROUP; + PFETCH(c); + } } break; @@ -4583,7 +5474,10 @@ parse_enclose(Node** np, OnigToken* tok, int term, UChar** src, UChar* end, r = fetch_token(tok, &p, end, env); if (r < 0) return r; r = parse_subexp(&target, tok, term, &p, end, env); - if (r < 0) return r; + if (r < 0) { + onig_node_free(target); + return r; + } if (NTYPE(*np) == NT_ANCHOR) NANCHOR(*np)->target = target; @@ -4594,17 +5488,36 @@ parse_enclose(Node** np, OnigToken* tok, int term, UChar** src, UChar* end, r = scan_env_set_mem_node(env, NENCLOSE(*np)->regnum, *np); if (r != 0) return r; } + else if (NENCLOSE(*np)->type == ENCLOSE_CONDITION) { + if (NTYPE(target) != NT_ALT) { + /* convert (?(cond)yes) to (?(cond)yes|empty) */ + work1 = node_new_empty(); + if (IS_NULL(work1)) goto err; + work2 = onig_node_new_alt(work1, NULL_NODE); + if (IS_NULL(work2)) goto err; + work1 = onig_node_new_alt(target, work2); + if (IS_NULL(work1)) goto err; + NENCLOSE(*np)->target = work1; + } + } } *src = p; return 0; + + err: + onig_node_free(work1); + onig_node_free(work2); + onig_node_free(*np); + *np = NULL; + return ONIGERR_MEMORY; } -static const char* PopularQStr[] = { +static const char* const PopularQStr[] = { "?", "*", "+", "??", "*?", "+?" }; -static const char* ReduceQStr[] = { +static const char* const ReduceQStr[] = { "", "", "*", "*?", "??", "+ and ??", "+? and ?" }; @@ -4623,11 +5536,11 @@ set_quantifier(Node* qnode, Node* target, int group, ScanEnv* env) if (! group) { StrNode* sn = NSTR(target); if (str_node_can_be_split(sn, env->enc)) { - Node* n = str_node_split_last_char(sn, env->enc); - if (IS_NOT_NULL(n)) { - qn->target = n; - return 2; - } + Node* n = str_node_split_last_char(sn, env->enc); + if (IS_NOT_NULL(n)) { + qn->target = n; + return 2; + } } } break; @@ -4640,32 +5553,25 @@ set_quantifier(Node* qnode, Node* target, int group, ScanEnv* env) int targetq_num = popular_quantifier_num(qnt); #ifdef USE_WARNING_REDUNDANT_NESTED_REPEAT_OPERATOR - if (!IS_QUANTIFIER_BY_NUMBER(qn) && !IS_QUANTIFIER_BY_NUMBER(qnt) && - IS_SYNTAX_BV(env->syntax, ONIG_SYN_WARN_REDUNDANT_NESTED_REPEAT)) { - UChar buf[WARN_BUFSIZE]; - - switch(ReduceTypeTable[targetq_num][nestq_num]) { + if (nestq_num >= 0 && targetq_num >= 0 && + IS_SYNTAX_BV(env->syntax, ONIG_SYN_WARN_REDUNDANT_NESTED_REPEAT)) { + 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); + if (onig_warn != onig_null_warn) { + onig_syntax_warn(env, "regular expression has redundant nested repeat operator '%s'", + PopularQStr[targetq_num]); } 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); + if (onig_warn != onig_null_warn) { + onig_syntax_warn(env, "nested repeat operator '%s' and '%s' was replaced with '%s' in regular expression", + PopularQStr[targetq_num], PopularQStr[nestq_num], + ReduceQStr[ReduceTypeTable[targetq_num][nestq_num]]); } goto warn_exit; break; @@ -4675,16 +5581,16 @@ set_quantifier(Node* qnode, Node* target, int group, ScanEnv* env) warn_exit: #endif if (targetq_num >= 0) { - if (nestq_num >= 0) { - onig_reduce_nested_quantifier(qnode, target); - goto q_exit; - } - else if (targetq_num == 1 || targetq_num == 2) { /* * or + */ - /* (?:a*){n,m}, (?:a+){n,m} => (?:a*){n,n}, (?:a+){n,n} */ - if (! IS_REPEAT_INFINITE(qn->upper) && qn->upper > 1 && qn->greedy) { - qn->upper = (qn->lower == 0 ? 1 : qn->lower); - } - } + if (nestq_num >= 0) { + onig_reduce_nested_quantifier(qnode, target); + goto q_exit; + } + else if (targetq_num == 1 || targetq_num == 2) { /* * or + */ + /* (?:a*){n,m}, (?:a+){n,m} => (?:a*){n,n}, (?:a+){n,n} */ + if (! IS_REPEAT_INFINITE(qn->upper) && qn->upper > 1 && qn->greedy) { + qn->upper = (qn->lower == 0 ? 1 : qn->lower); + } + } } } break; @@ -4699,147 +5605,146 @@ set_quantifier(Node* qnode, Node* target, int group, ScanEnv* env) } -#ifdef USE_SHARED_CCLASS_TABLE - -#define THRESHOLD_RANGE_NUM_FOR_SHARE_CCLASS 8 - -/* for ctype node hash table */ - -typedef struct { - OnigEncoding enc; - int not; - int type; -} type_cclass_key; - -static int type_cclass_cmp(type_cclass_key* x, type_cclass_key* y) +#ifndef CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS +static int +clear_not_flag_cclass(CClassNode* cc, OnigEncoding enc) { - if (x->type != y->type) return 1; - if (x->enc != y->enc) return 1; - if (x->not != y->not) return 1; - return 0; -} + BBuf *tbuf; + int r; -static int type_cclass_hash(type_cclass_key* key) -{ - int i, val; - UChar *p; + if (IS_NCCLASS_NOT(cc)) { + bitset_invert(cc->bs); - val = 0; + if (! ONIGENC_IS_SINGLEBYTE(enc)) { + r = not_code_range_buf(enc, cc->mbuf, &tbuf); + if (r != 0) return r; - p = (UChar* )&(key->enc); - for (i = 0; i < sizeof(key->enc); i++) { - val = val * 997 + (int )*p++; - } + bbuf_free(cc->mbuf); + cc->mbuf = tbuf; + } - p = (UChar* )(&key->type); - for (i = 0; i < sizeof(key->type); i++) { - val = val * 997 + (int )*p++; + NCCLASS_CLEAR_NOT(cc); } - val += key->not; - return val + (val >> 5); + return 0; } +#endif /* CASE_FOLD_IS_APPLIED_INSIDE_NEGATIVE_CCLASS */ -static const struct st_hash_type type_type_cclass_hash = { - type_cclass_cmp, - type_cclass_hash, -}; - -static st_table* OnigTypeCClassTable; - - -static int -i_free_shared_class(type_cclass_key* key, Node* node, void* arg) +static inline bool +is_singlebyte_range(OnigCodePoint code, OnigEncoding enc) { - if (IS_NOT_NULL(node)) { - CClassNode* cc = NCCLASS(node); - if (IS_NOT_NULL(cc->mbuf)) xfree(cc->mbuf); - xfree(node); + /* single byte encoding */ + if (ONIGENC_MBC_MAXLEN(enc) == 1) { + return true; } - if (IS_NOT_NULL(key)) xfree(key); - return ST_DELETE; -} - -extern int -onig_free_shared_cclass_table(void) -{ - if (IS_NOT_NULL(OnigTypeCClassTable)) { - onig_st_foreach(OnigTypeCClassTable, i_free_shared_class, 0); - onig_st_free_table(OnigTypeCClassTable); - OnigTypeCClassTable = NULL; + /* wide char encoding */ + if (ONIGENC_MBC_MINLEN(enc) > 1) { + return false; } - return 0; + return (code < 0x80); } -#endif /* USE_SHARED_CCLASS_TABLE */ - - typedef struct { ScanEnv* env; CClassNode* cc; + CClassNode* asc_cc; Node* alt_root; Node** ptail; } IApplyCaseFoldArg; static int i_apply_case_fold(OnigCodePoint from, OnigCodePoint to[], - int to_len, void* arg) + int to_len, void* arg) { IApplyCaseFoldArg* iarg; ScanEnv* env; CClassNode* cc; + CClassNode* asc_cc; BitSetRef bs; + int add_flag, r; iarg = (IApplyCaseFoldArg* )arg; env = iarg->env; cc = iarg->cc; + asc_cc = iarg->asc_cc; bs = cc->bs; + if (IS_NULL(asc_cc)) { + add_flag = 0; + } + else if (ONIGENC_IS_ASCII_CODE(from) == ONIGENC_IS_ASCII_CODE(*to)) { + add_flag = 1; + } + else { + add_flag = onig_is_code_in_cc(env->enc, from, asc_cc); + if (IS_NCCLASS_NOT(asc_cc)) + add_flag = !add_flag; + } + if (to_len == 1) { - int in_cc; - in_cc = onig_is_code_in_cc(env->enc, from, cc); - if ((in_cc != 0 && !IS_NCCLASS_NOT(cc)) || - (in_cc == 0 && IS_NCCLASS_NOT(cc))) { - 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); + 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 (add_flag) { + if (is_singlebyte_range(*to, env->enc)) { + BITSET_SET_BIT(bs, *to); + } + else { + r = add_code_range0(&(cc->mbuf), env, *to, *to, 0); + if (r < 0) return r; + } } - else { - /* /(?i:[^A-C])/.match("a") ==> fail. */ - if (IS_NCCLASS_NOT(cc)) - BITSET_CLEAR_BIT(bs, *to); - else - BITSET_SET_BIT(bs, *to); + } +#else + if (is_in != 0) { + if (add_flag) { + if (is_singlebyte_range(*to, env->enc)) { + if (IS_NCCLASS_NOT(cc)) { + BITSET_CLEAR_BIT(bs, *to); + } + else { + BITSET_SET_BIT(bs, *to); + } + } + else { + if (IS_NCCLASS_NOT(cc)) clear_not_flag_cclass(cc, env->enc); + r = add_code_range0(&(cc->mbuf), env, *to, *to, 0); + if (r < 0) return r; + } } } +#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)) { - if (IS_NCCLASS_NOT(cc)) clear_not_flag_cclass(cc, env->enc); - + 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. */ - NSTRING_SET_AMBIG(snode); - } - else { - r = onig_node_str_cat(snode, buf, buf + len); - if (r < 0) { - onig_node_free(snode); - return r; - } - } + 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. */ + NSTRING_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); @@ -4852,24 +5757,577 @@ i_apply_case_fold(OnigCodePoint from, OnigCodePoint to[], } static int +cclass_case_fold(Node** np, CClassNode* cc, CClassNode* asc_cc, ScanEnv* env) +{ + int r; + IApplyCaseFoldArg iarg; + + iarg.env = env; + iarg.cc = cc; + iarg.asc_cc = asc_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; + } + return r; +} + +static int +node_linebreak(Node** np, ScanEnv* env) +{ + /* same as (?>\x0D\x0A|[\x0A-\x0D\x{85}\x{2028}\x{2029}]) */ + Node* left = NULL; + Node* right = NULL; + Node* target1 = NULL; + Node* target2 = NULL; + CClassNode* cc; + int num1, num2, r; + UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN * 2]; + + /* \x0D\x0A */ + num1 = ONIGENC_CODE_TO_MBC(env->enc, 0x0D, buf); + if (num1 < 0) return num1; + num2 = ONIGENC_CODE_TO_MBC(env->enc, 0x0A, buf + num1); + if (num2 < 0) return num2; + left = node_new_str_raw(buf, buf + num1 + num2); + if (IS_NULL(left)) goto err; + + /* [\x0A-\x0D] or [\x0A-\x0D\x{85}\x{2028}\x{2029}] */ + right = node_new_cclass(); + if (IS_NULL(right)) goto err; + cc = NCCLASS(right); + if (ONIGENC_MBC_MINLEN(env->enc) > 1) { + r = add_code_range(&(cc->mbuf), env, 0x0A, 0x0D); + if (r != 0) goto err; + } + else { + bitset_set_range(env, cc->bs, 0x0A, 0x0D); + } + + /* TODO: move this block to enc/unicode.c */ + if (ONIGENC_IS_UNICODE(env->enc)) { + /* UTF-8, UTF-16BE/LE, UTF-32BE/LE */ + r = add_code_range(&(cc->mbuf), env, 0x85, 0x85); + if (r != 0) goto err; + r = add_code_range(&(cc->mbuf), env, 0x2028, 0x2029); + if (r != 0) goto err; + } + + /* ...|... */ + target1 = onig_node_new_alt(right, NULL_NODE); + if (IS_NULL(target1)) goto err; + right = NULL; + target2 = onig_node_new_alt(left, target1); + if (IS_NULL(target2)) goto err; + left = NULL; + target1 = NULL; + + /* (?>...) */ + *np = node_new_enclose(ENCLOSE_STOP_BACKTRACK); + if (IS_NULL(*np)) goto err; + NENCLOSE(*np)->target = target2; + return ONIG_NORMAL; + + err: + onig_node_free(left); + onig_node_free(right); + onig_node_free(target1); + onig_node_free(target2); + return ONIGERR_MEMORY; +} + +static int +propname2ctype(ScanEnv* env, const char* propname) +{ + UChar* name = (UChar* )propname; + UChar* name_end = name + strlen(propname); + int ctype = env->enc->property_name_to_ctype(ONIG_ENCODING_ASCII, + name, name_end); + if (ctype < 0) { + onig_scan_env_set_error_string(env, ctype, name, name_end); + } + return ctype; +} + +static int +add_property_to_cc(CClassNode* cc, const char* propname, int not, ScanEnv* env) +{ + int ctype = propname2ctype(env, propname); + if (ctype < 0) return ctype; + return add_ctype_to_cc(cc, ctype, not, 0, env); +} + +/* + * helper methods for node_extended_grapheme_cluster (/\X/) + */ +static int +create_property_node(Node **np, ScanEnv* env, const char* propname) +{ + int r; + CClassNode* cc; + + *np = node_new_cclass(); + if (IS_NULL(*np)) return ONIGERR_MEMORY; + cc = NCCLASS(*np); + r = add_property_to_cc(cc, propname, 0, env); + if (r != 0) + onig_node_free(*np); + return r; +} + +static int +quantify_node(Node **np, int lower, int upper) +{ + Node* tmp = node_new_quantifier(lower, upper, 0); + if (IS_NULL(tmp)) return ONIGERR_MEMORY; + NQTFR(tmp)->target = *np; + *np = tmp; + return 0; +} + +static int +quantify_property_node(Node **np, ScanEnv* env, const char* propname, char repetitions) +{ + int r; + int lower = 0; + int upper = REPEAT_INFINITE; + + r = create_property_node(np, env, propname); + if (r != 0) return r; + switch (repetitions) { + case '?': upper = 1; break; + case '+': lower = 1; break; + case '*': break; + case '2': lower = upper = 2; break; + default : return ONIGERR_PARSER_BUG; + } + return quantify_node(np, lower, upper); +} + +#define LIST 0 +#define ALT 1 + +/* IMPORTANT: Make sure node_array ends with NULL_NODE */ +static int +create_node_from_array(int kind, Node **np, Node **node_array) +{ + Node* tmp = NULL_NODE; + int i = 0; + + while (node_array[i] != NULL_NODE) i++; + while (--i >= 0) { + *np = kind==LIST ? node_new_list(node_array[i], tmp) + : onig_node_new_alt(node_array[i], tmp); + if (IS_NULL(*np)) { + while (i >= 0) { + onig_node_free(node_array[i]); + node_array[i--] = NULL_NODE; + } + onig_node_free(tmp); + return ONIGERR_MEMORY; + } + else + node_array[i] = NULL_NODE; + tmp = *np; + } + return 0; +} + +#define R_ERR(call) r=(call);if(r!=0)goto err + +/* Memory layout for common node array: + * The main purpose is to be able to easily free all leftover nodes + * after an error. As a side effect, we share some memory. + * + * The layout is as shown below (each line corresponds to one call of + * create_node_from_array()). Because create_node_from_array sets all + * nodes of the source to NULL_NODE, we can overlap the target array + * as long as we do not override the actual target location. + * + * Target Array name Index + * + * node_array 0 1 2 3 4 5 6 7 8 9 A B C D E F G H + * top_alts alts[5] 0 1 2 3 4* + * alts+2 list[4] 0 1 2 3* + * list+1 core_alts[8] 0 1 2 3 4 5 6 7* + * core_alts+0 H_list[4] 0 1 2 3* + * H_list+1 H_alt2[4] 0 1 2 3* + * H_alt2+1 H_list2[3] 0 1 2* + * core_alts+4 XP_list[3] 0 1 2* + * XP_list+1 Ex_list[4] 0 1 2 3* + * core_alts+5 CC_list[3] 0 1 2* + * CC_list+1 CC_inner_list[5] 0 1 2 3 4* + */ +#define NODE_COMMON_SIZE 18 + +static int +node_extended_grapheme_cluster(Node** np, ScanEnv* env) +{ + Node* tmp = NULL; + Node* np1 = NULL; + Node* top_alt = NULL; + int r = 0; + int num1; + int i; + int any_target_position; + UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN * 2]; + OnigOptionType option; + /* node_common is function-global so that we can free all nodes + * in case of error. Unused slots are set to NULL_NODE at all times. */ + Node *node_common[NODE_COMMON_SIZE]; + Node **alts = node_common+0; /* size: 5 */ + + for (i=0; i<NODE_COMMON_SIZE; i++) + node_common[i] = NULL_NODE; + + /* CRLF, common for both Unicode and non-Unicode */ + /* \x0D\x0A */ + r = ONIGENC_CODE_TO_MBC(env->enc, 0x0D, buf); + if (r < 0) goto err; + num1 = r; + r = ONIGENC_CODE_TO_MBC(env->enc, 0x0A, buf + num1); + if (r < 0) goto err; + alts[0] = node_new_str_raw(buf, buf + num1 + r); + if (IS_NULL(alts[0])) goto err; + +#ifdef USE_UNICODE_PROPERTIES + if (ONIGENC_IS_UNICODE(env->enc)) { /* UTF-8, UTF-16BE/LE, UTF-32BE/LE */ + CClassNode* cc; + + if (propname2ctype(env, "Grapheme_Cluster_Break=Extend") < 0) goto err; + /* Unicode 11.0.0 + * CRLF (already done) + * | [Control CR LF] + * | precore* core postcore* + * | . (to catch invalid stuff, because this seems to be spec for String#grapheme_clusters) */ + + /* [Control CR LF] (CR and LF are not in the spec, but this is a conformed fix) */ + alts[1] = node_new_cclass(); + if (IS_NULL(alts[1])) goto err; + cc = NCCLASS(alts[1]); + R_ERR(add_property_to_cc(cc, "Grapheme_Cluster_Break=Control", 0, env)); + if (ONIGENC_MBC_MINLEN(env->enc) > 1) { /* UTF-16/UTF-32 */ + R_ERR(add_code_range(&(cc->mbuf), env, 0x000A, 0x000A)); /* CR */ + R_ERR(add_code_range(&(cc->mbuf), env, 0x000D, 0x000D)); /* LF */ + } + else { + BITSET_SET_BIT(cc->bs, 0x0a); + BITSET_SET_BIT(cc->bs, 0x0d); + } + + /* precore* core postcore* */ + { + Node **list = alts + 3; /* size: 4 */ + + /* precore*; precore := Prepend */ + R_ERR(quantify_property_node(list+0, env, "Grapheme_Cluster_Break=Prepend", '*')); + + /* core := hangul-syllable + * | ri-sequence + * | xpicto-sequence + * | conjunctCluster + * | [^Control CR LF] */ + { + Node **core_alts = list + 2; /* size: 8 */ + + /* hangul-syllable := + * L* (V+ | LV V* | LVT) T* + * | L+ + * | T+ */ + /* hangul-syllable is an alternative (would be called H_alt) + * inside an alternative, but we flatten it into core_alts */ + + /* L* (V+ | LV V* | LVT) T* */ + { + Node **H_list = core_alts + 1; /* size: 4 */ + R_ERR(quantify_property_node(H_list+0, env, "Grapheme_Cluster_Break=L", '*')); + + /* V+ | LV V* | LVT */ + { + Node **H_alt2 = H_list + 2; /* size: 4 */ + R_ERR(quantify_property_node(H_alt2+0, env, "Grapheme_Cluster_Break=V", '+')); + + /* LV V* */ + { + Node **H_list2 = H_alt2 + 2; /* size: 3 */ + + R_ERR(create_property_node(H_list2+0, env, "Grapheme_Cluster_Break=LV")); + R_ERR(quantify_property_node(H_list2+1, env, "Grapheme_Cluster_Break=V", '*')); + R_ERR(create_node_from_array(LIST, H_alt2+1, H_list2)); + } + + R_ERR(create_property_node(H_alt2+2, env, "Grapheme_Cluster_Break=LVT")); + R_ERR(create_node_from_array(ALT, H_list+1, H_alt2)); + } + + R_ERR(quantify_property_node(H_list+2, env, "Grapheme_Cluster_Break=T", '*')); + R_ERR(create_node_from_array(LIST, core_alts+0, H_list)); + } + + R_ERR(quantify_property_node(core_alts+1, env, "Grapheme_Cluster_Break=L", '+')); + R_ERR(quantify_property_node(core_alts+2, env, "Grapheme_Cluster_Break=T", '+')); + /* end of hangul-syllable */ + + /* ri-sequence := RI RI */ + R_ERR(quantify_property_node(core_alts+3, env, "Regional_Indicator", '2')); + + /* xpicto-sequence := \p{Extended_Pictographic} (Extend* ZWJ \p{Extended_Pictographic})* */ + { + Node **XP_list = core_alts + 5; /* size: 3 */ + R_ERR(create_property_node(XP_list+0, env, "Extended_Pictographic")); + + /* (Extend* ZWJ \p{Extended_Pictographic})* */ + { + Node **Ex_list = XP_list + 2; /* size: 4 */ + /* assert(Ex_list+4 == node_common+NODE_COMMON_SIZE); */ + R_ERR(quantify_property_node(Ex_list+0, env, "Grapheme_Cluster_Break=Extend", '*')); + + /* ZWJ (ZERO WIDTH JOINER) */ + r = ONIGENC_CODE_TO_MBC(env->enc, 0x200D, buf); + if (r < 0) goto err; + Ex_list[1] = node_new_str_raw(buf, buf + r); + if (IS_NULL(Ex_list[1])) goto err; + + R_ERR(create_property_node(Ex_list+2, env, "Extended_Pictographic")); + R_ERR(create_node_from_array(LIST, XP_list+1, Ex_list)); + } + R_ERR(quantify_node(XP_list+1, 0, REPEAT_INFINITE)); /* TODO: Check about node freeing */ + + R_ERR(create_node_from_array(LIST, core_alts+4, XP_list)); + } + + /* conjunctCluster := \p{InCB=Consonant} ([\p{InCB=Extend} \p{InCB=Linker}]* \p{InCB=Linker} [\p{InCB=Extend} \p{InCB=Linker}]* \p{InCB=Consonant})+ */ + { + // \p{InCB=Consonant} + Node **CC_list = core_alts + 6; /* size: 3 */ + R_ERR(create_property_node(CC_list+0, env, "InCB=Consonant")); + + { + Node **CC_inner_list = CC_list + 2; /* size: 5 */ + { + // [\p{InCB=Extend} \p{InCB=Linker}]* + R_ERR(create_property_node(CC_inner_list+0, env, "InCB=Extend")); + R_ERR(add_property_to_cc(NCCLASS(CC_inner_list[0]), "InCB=Linker", 0, env)); + R_ERR(quantify_node(CC_inner_list+0, 0, REPEAT_INFINITE)); + } + + // \p{InCB=Linker} + R_ERR(create_property_node(CC_inner_list+1, env, "InCB=Linker")); + + { + // [\p{InCB=Extend} \p{InCB=Linker}]* + R_ERR(create_property_node(CC_inner_list+2, env, "InCB=Extend")); + R_ERR(add_property_to_cc(NCCLASS(CC_inner_list[2]), "InCB=Linker", 0, env)); + R_ERR(quantify_node(CC_inner_list+2, 0, REPEAT_INFINITE)); + } + + // \p{InCB=Consonant} + R_ERR(create_property_node(CC_inner_list+3, env, "InCB=Consonant")); + + // ([\p{InCB=Extend} \p{InCB=Linker}]* \p{InCB=Linker} [\p{InCB=Extend} \p{InCB=Linker}]* \p{InCB=Consonant}) + R_ERR(create_node_from_array(LIST, CC_list+1, CC_inner_list)); + + // (...)+ + R_ERR(quantify_node(CC_list+1, 1, REPEAT_INFINITE)); + } + + // \p{InCB=Consonant} ([\p{InCB=Extend} \p{InCB=Linker}]* \p{InCB=Linker} [\p{InCB=Extend} \p{InCB=Linker}]* \p{InCB=Consonant})+ + R_ERR(create_node_from_array(LIST, core_alts+5, CC_list)); + } + + /* [^Control CR LF] */ + core_alts[6] = node_new_cclass(); + if (IS_NULL(core_alts[6])) goto err; + cc = NCCLASS(core_alts[6]); + if (ONIGENC_MBC_MINLEN(env->enc) > 1) { /* UTF-16/UTF-32 */ + BBuf *inverted_buf = NULL; + + /* TODO: fix false warning */ + const int dup_not_warned = env->warnings_flag | ~ONIG_SYN_WARN_CC_DUP; + env->warnings_flag |= ONIG_SYN_WARN_CC_DUP; + + /* Start with a positive buffer and invert at the end. + * Otherwise, adding single-character ranges work the wrong way. */ + R_ERR(add_property_to_cc(cc, "Grapheme_Cluster_Break=Control", 0, env)); + R_ERR(add_code_range(&(cc->mbuf), env, 0x000A, 0x000A)); /* CR */ + R_ERR(add_code_range(&(cc->mbuf), env, 0x000D, 0x000D)); /* LF */ + R_ERR(not_code_range_buf(env->enc, cc->mbuf, &inverted_buf, env)); + bbuf_free(cc->mbuf); + cc->mbuf = inverted_buf; + + env->warnings_flag &= dup_not_warned; /* TODO: fix false warning */ + } + else { + R_ERR(add_property_to_cc(cc, "Grapheme_Cluster_Break=Control", 1, env)); + BITSET_CLEAR_BIT(cc->bs, 0x0a); + BITSET_CLEAR_BIT(cc->bs, 0x0d); + } + + R_ERR(create_node_from_array(ALT, list+1, core_alts)); + } + + /* postcore*; postcore = [Extend ZWJ SpacingMark] */ + R_ERR(create_property_node(list+2, env, "Grapheme_Cluster_Break=Extend")); + cc = NCCLASS(list[2]); + R_ERR(add_property_to_cc(cc, "Grapheme_Cluster_Break=SpacingMark", 0, env)); + R_ERR(add_code_range(&(cc->mbuf), env, 0x200D, 0x200D)); + R_ERR(quantify_node(list+2, 0, REPEAT_INFINITE)); + + R_ERR(create_node_from_array(LIST, alts+2, list)); + } + + any_target_position = 3; + } + else +#endif /* USE_UNICODE_PROPERTIES */ + { + any_target_position = 1; + } + + /* PerlSyntax: (?s:.), RubySyntax: (?m:.), common for both Unicode and non-Unicode */ + /* Not in Unicode spec (UAX #29), but added to catch invalid stuff, + * because this is Ruby spec for String#grapheme_clusters. */ + np1 = node_new_anychar(); + if (IS_NULL(np1)) goto err; + + option = env->option; + ONOFF(option, ONIG_OPTION_MULTILINE, 0); + tmp = node_new_option(option); + if (IS_NULL(tmp)) goto err; + NENCLOSE(tmp)->target = np1; + alts[any_target_position] = tmp; + np1 = NULL; + + R_ERR(create_node_from_array(ALT, &top_alt, alts)); + + /* (?>): For efficiency, because there is no text piece + * that is not in a grapheme cluster, and there is only one way + * to split a string into grapheme clusters. */ + tmp = node_new_enclose(ENCLOSE_STOP_BACKTRACK); + if (IS_NULL(tmp)) goto err; + NENCLOSE(tmp)->target = top_alt; + np1 = tmp; + +#ifdef USE_UNICODE_PROPERTIES + if (ONIGENC_IS_UNICODE(env->enc)) { + /* Don't ignore case. */ + option = env->option; + ONOFF(option, ONIG_OPTION_IGNORECASE, 1); + *np = node_new_option(option); + if (IS_NULL(*np)) goto err; + NENCLOSE(*np)->target = np1; + } + else +#endif + { + *np = np1; + } + return ONIG_NORMAL; + + err: + onig_node_free(np1); + for (i=0; i<NODE_COMMON_SIZE; i++) + onig_node_free(node_common[i]); + return (r == 0) ? ONIGERR_MEMORY : r; +} +#undef R_ERR + +static int +countbits(unsigned int bits) +{ + bits = (bits & 0x55555555) + ((bits >> 1) & 0x55555555); + bits = (bits & 0x33333333) + ((bits >> 2) & 0x33333333); + bits = (bits & 0x0f0f0f0f) + ((bits >> 4) & 0x0f0f0f0f); + bits = (bits & 0x00ff00ff) + ((bits >> 8) & 0x00ff00ff); + return (bits & 0x0000ffff) + ((bits >>16) & 0x0000ffff); +} + +static int +is_onechar_cclass(CClassNode* cc, OnigCodePoint* code) +{ + const OnigCodePoint not_found = ONIG_LAST_CODE_POINT; + OnigCodePoint c = not_found; + int i; + BBuf *bbuf = cc->mbuf; + + if (IS_NCCLASS_NOT(cc)) return 0; + + /* check bbuf */ + if (IS_NOT_NULL(bbuf)) { + OnigCodePoint n, *data; + GET_CODE_POINT(n, bbuf->p); + data = (OnigCodePoint* )(bbuf->p) + 1; + if ((n == 1) && (data[0] == data[1])) { + /* only one char found in the bbuf, save the code point. */ + c = data[0]; + if (((c < SINGLE_BYTE_SIZE) && BITSET_AT(cc->bs, c))) { + /* skip if c is included in the bitset */ + c = not_found; + } + } + else { + return 0; /* the bbuf contains multiple chars */ + } + } + + /* check bitset */ + for (i = 0; i < BITSET_SIZE; i++) { + Bits b1 = cc->bs[i]; + if (b1 != 0) { + if (((b1 & (b1 - 1)) == 0) && (c == not_found)) { + c = BITS_IN_ROOM * i + countbits(b1 - 1); + } + else { + return 0; /* the character class contains multiple chars */ + } + } + } + + if (c != not_found) { + *code = c; + return 1; + } + + /* the character class contains no char. */ + return 0; +} + + +static int parse_exp(Node** np, OnigToken* tok, int term, - UChar** src, UChar* end, ScanEnv* env) + UChar** src, UChar* end, ScanEnv* env) { int r, len, group = 0; Node* qn; Node** targetp; + unsigned int parse_depth; *np = NULL; - if (tok->type == term) + 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(); - return tok->type; - break; + *np = node_new_empty(); + return tok->type; + break; case TK_SUBEXP_OPEN: r = parse_enclose(np, tok, TK_SUBEXP_CLOSE, src, end, env); @@ -4881,11 +6339,17 @@ parse_exp(Node** np, OnigToken* tok, int term, env->option = NENCLOSE(*np)->option; r = fetch_token(tok, src, end, env); - if (r < 0) return r; + if (r < 0) { + env->option = prev; + return r; + } r = parse_subexp(&target, tok, term, src, end, env); env->option = prev; - if (r < 0) return r; - NENCLOSE(*np)->target = target; + if (r < 0) { + onig_node_free(target); + return r; + } + NENCLOSE(*np)->target = target; return tok->type; } break; @@ -4898,19 +6362,43 @@ parse_exp(Node** np, OnigToken* tok, int term, else goto tk_byte; break; + case TK_LINEBREAK: + r = node_linebreak(np, env); + if (r < 0) return r; + break; + + case TK_EXTENDED_GRAPHEME_CLUSTER: + r = node_extended_grapheme_cluster(np, env); + if (r < 0) return r; + break; + + case TK_KEEP: + *np = onig_node_new_anchor(ANCHOR_KEEP); + CHECK_NULL_RETURN_MEMERR(*np); + break; + case TK_STRING: tk_byte: { *np = node_new_str(tok->backp, *src); CHECK_NULL_RETURN_MEMERR(*np); + string_loop: 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; + r = fetch_token(tok, src, end, env); + if (r < 0) return r; + if (r == TK_STRING) { + r = onig_node_str_cat(*np, tok->backp, *src); + } +#ifndef NUMBERED_CHAR_IS_NOT_CASE_AMBIG + else if (r == TK_CODE_POINT) { + r = node_str_cat_codepoint(*np, env->enc, tok->u.code); + } +#endif + else { + break; + } + if (r < 0) return r; } string_end: @@ -4926,51 +6414,51 @@ parse_exp(Node** np, OnigToken* tok, int term, CHECK_NULL_RETURN_MEMERR(*np); len = 1; while (1) { - if (len >= ONIGENC_MBC_MINLEN(env->enc)) { - if (len == enc_len(env->enc, NSTR(*np)->s, NSTR(*np)->end)) { - r = fetch_token(tok, src, end, env); - NSTRING_CLEAR_RAW(*np); - goto string_end; - } - } - - r = fetch_token(tok, src, end, env); - if (r < 0) return r; - if (r != TK_RAW_BYTE) { - /* Don't use this, it is wrong for little endian encodings. */ + if (len >= ONIGENC_MBC_MINLEN(env->enc)) { + if (len == enclen(env->enc, NSTR(*np)->s, NSTR(*np)->end)) { + r = fetch_token(tok, src, end, env); + NSTRING_CLEAR_RAW(*np); + goto string_end; + } + } + + r = fetch_token(tok, src, end, env); + if (r < 0) return r; + if (r != TK_RAW_BYTE) { + /* Don't use this, it is wrong for little endian encodings. */ #ifdef USE_PAD_TO_SHORT_BYTE_CHAR - int rem; - if (len < ONIGENC_MBC_MINLEN(env->enc)) { - rem = ONIGENC_MBC_MINLEN(env->enc) - len; - (void )node_str_head_pad(NSTR(*np), rem, (UChar )0); - if (len + rem == enc_len(env->enc, NSTR(*np)->s)) { - NSTRING_CLEAR_RAW(*np); - goto string_end; - } - } + int rem; + if (len < ONIGENC_MBC_MINLEN(env->enc)) { + rem = ONIGENC_MBC_MINLEN(env->enc) - len; + (void )node_str_head_pad(NSTR(*np), rem, (UChar )0); + if (len + rem == enclen(env->enc, NSTR(*np)->s)) { + NSTRING_CLEAR_RAW(*np); + goto string_end; + } + } #endif - return ONIGERR_TOO_SHORT_MULTI_BYTE_STRING; - } + return ONIGERR_TOO_SHORT_MULTI_BYTE_STRING; + } - r = node_str_cat_char(*np, (UChar )tok->u.c); - if (r < 0) return r; + r = node_str_cat_char(*np, (UChar )tok->u.c); + if (r < 0) return r; - len++; + len++; } } break; case TK_CODE_POINT: { - UChar buf[ONIGENC_CODE_TO_MBC_MAXLEN]; - int num = ONIGENC_CODE_TO_MBC(env->enc, tok->u.code, buf); - if (num < 0) return num; + *np = node_new_empty(); + CHECK_NULL_RETURN_MEMERR(*np); + r = node_str_cat_codepoint(*np, env->enc, tok->u.code); + if (r != 0) return r; #ifdef NUMBERED_CHAR_IS_NOT_CASE_AMBIG - *np = node_new_str_raw(buf, buf + num); + NSTRING_SET_RAW(*np); #else - *np = node_new_str(buf, buf + num); + goto string_loop; #endif - CHECK_NULL_RETURN_MEMERR(*np); } break; @@ -4984,7 +6472,7 @@ parse_exp(Node** np, OnigToken* tok, int term, qstart = *src; qend = find_str_position(end_op, 2, qstart, end, &nextp, env->enc); if (IS_NULL(qend)) { - nextp = qend = end; + nextp = qend = end; } *np = node_new_str(qstart, qend); CHECK_NULL_RETURN_MEMERR(*np); @@ -4996,82 +6484,30 @@ parse_exp(Node** np, OnigToken* tok, int term, { switch (tok->u.prop.ctype) { case ONIGENC_CTYPE_WORD: - *np = node_new_ctype(tok->u.prop.ctype, tok->u.prop.not); - CHECK_NULL_RETURN_MEMERR(*np); - break; + *np = node_new_ctype(tok->u.prop.ctype, tok->u.prop.not, + IS_ASCII_RANGE(env->option)); + CHECK_NULL_RETURN_MEMERR(*np); + break; case ONIGENC_CTYPE_SPACE: case ONIGENC_CTYPE_DIGIT: case ONIGENC_CTYPE_XDIGIT: - { - CClassNode* cc; - -#ifdef USE_SHARED_CCLASS_TABLE - const OnigCodePoint *mbr; - OnigCodePoint sb_out; - - r = ONIGENC_GET_CTYPE_CODE_RANGE(env->enc, tok->u.prop.ctype, - &sb_out, &mbr); - if (r == 0 && - ONIGENC_CODE_RANGE_NUM(mbr) - >= THRESHOLD_RANGE_NUM_FOR_SHARE_CCLASS) { - type_cclass_key key; - type_cclass_key* new_key; - - key.enc = env->enc; - key.not = tok->u.prop.not; - key.type = tok->u.prop.ctype; - - THREAD_ATOMIC_START; - - if (IS_NULL(OnigTypeCClassTable)) { - OnigTypeCClassTable - = onig_st_init_table_with_size(&type_type_cclass_hash, 10); - if (IS_NULL(OnigTypeCClassTable)) { - THREAD_ATOMIC_END; - return ONIGERR_MEMORY; - } - } - else { - if (onig_st_lookup(OnigTypeCClassTable, (st_data_t )&key, - (st_data_t* )np)) { - THREAD_ATOMIC_END; - break; - } - } - - *np = node_new_cclass_by_codepoint_range(tok->u.prop.not, - sb_out, mbr); - if (IS_NULL(*np)) { - THREAD_ATOMIC_END; - return ONIGERR_MEMORY; - } - - cc = NCCLASS(*np); - NCCLASS_SET_SHARE(cc); - new_key = (type_cclass_key* )xmalloc(sizeof(type_cclass_key)); - xmemcpy(new_key, &key, sizeof(type_cclass_key)); - onig_st_add_direct(OnigTypeCClassTable, (st_data_t )new_key, - (st_data_t )*np); - - THREAD_ATOMIC_END; - } - else { -#endif - *np = node_new_cclass(); - CHECK_NULL_RETURN_MEMERR(*np); - cc = NCCLASS(*np); - add_ctype_to_cc(cc, tok->u.prop.ctype, 0, env); - if (tok->u.prop.not != 0) NCCLASS_SET_NOT(cc); -#ifdef USE_SHARED_CCLASS_TABLE - } -#endif - } - break; + { + CClassNode* cc; + + *np = node_new_cclass(); + CHECK_NULL_RETURN_MEMERR(*np); + cc = NCCLASS(*np); + r = add_ctype_to_cc(cc, tok->u.prop.ctype, 0, + IS_ASCII_RANGE(env->option), env); + if (r != 0) return r; + if (tok->u.prop.not != 0) NCCLASS_SET_NOT(cc); + } + break; default: - return ONIGERR_PARSER_BUG; - break; + return ONIGERR_PARSER_BUG; + break; } } break; @@ -5083,35 +6519,34 @@ parse_exp(Node** np, OnigToken* tok, int term, case TK_CC_OPEN: { + Node *asc_node; CClassNode* cc; + OnigCodePoint code; - r = parse_char_class(np, tok, src, end, env); - if (r != 0) return r; + r = parse_char_class(np, &asc_node, tok, src, end, env); + if (r != 0) { + onig_node_free(asc_node); + return r; + } cc = NCCLASS(*np); + if (is_onechar_cclass(cc, &code)) { + onig_node_free(*np); + onig_node_free(asc_node); + *np = node_new_empty(); + CHECK_NULL_RETURN_MEMERR(*np); + r = node_str_cat_codepoint(*np, env->enc, code); + if (r != 0) return r; + goto string_loop; + } if (IS_IGNORECASE(env->option)) { - 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; - } + r = cclass_case_fold(np, cc, NCCLASS(asc_node), env); + if (r != 0) { + onig_node_free(asc_node); + return r; + } } + onig_node_free(asc_node); } break; @@ -5132,35 +6567,47 @@ parse_exp(Node** np, OnigToken* tok, int term, 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_AT_LEVEL - tok->u.backref.exist_level, - tok->u.backref.level, + (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); + env); CHECK_NULL_RETURN_MEMERR(*np); break; #ifdef USE_SUBEXP_CALL case TK_CALL: - *np = node_new_call(tok->u.call.name, tok->u.call.name_end); - CHECK_NULL_RETURN_MEMERR(*np); - env->num_call++; + { + int gnum = tok->u.call.gnum; + + if (gnum < 0 || tok->u.call.rel != 0) { + if (gnum > 0) gnum--; + gnum = BACKREF_REL_TO_ABS(gnum, env); + if (gnum <= 0) + return ONIGERR_INVALID_BACKREF; + } + *np = node_new_call(tok->u.call.name, tok->u.call.name_end, gnum); + CHECK_NULL_RETURN_MEMERR(*np); + env->num_call++; + } break; #endif case TK_ANCHOR: - *np = onig_node_new_anchor(tok->u.anchor); + *np = onig_node_new_anchor(tok->u.anchor.subtype); + CHECK_NULL_RETURN_MEMERR(*np); + NANCHOR(*np)->ascii_range = tok->u.anchor.ascii_range; break; case TK_OP_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; + return ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED; else - *np = node_new_empty(); + *np = node_new_empty(); } else { goto tk_byte; @@ -5182,34 +6629,53 @@ parse_exp(Node** np, OnigToken* tok, int term, repeat: if (r == TK_OP_REPEAT || r == TK_INTERVAL) { if (is_invalid_quantifier_target(*targetp)) - return ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID; + 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 ? 1 : 0)); + (r == TK_INTERVAL ? 1 : 0)); CHECK_NULL_RETURN_MEMERR(qn); NQTFR(qn)->greedy = tok->u.repeat.greedy; r = set_quantifier(qn, *targetp, group, env); - if (r < 0) return r; - + if (r < 0) { + onig_node_free(qn); + return r; + } + if (tok->u.repeat.possessive != 0) { - Node* en; - en = node_new_enclose(ENCLOSE_STOP_BACKTRACK); - CHECK_NULL_RETURN_MEMERR(en); - NENCLOSE(en)->target = qn; - qn = en; + Node* en; + en = node_new_enclose(ENCLOSE_STOP_BACKTRACK); + if (IS_NULL(en)) { + onig_node_free(qn); + return ONIGERR_MEMORY; + } + NENCLOSE(en)->target = qn; + qn = en; } if (r == 0) { - *targetp = qn; + *targetp = qn; + } + else if (r == 1) { + onig_node_free(qn); } else if (r == 2) { /* split case: /abc+/ */ - Node *tmp; + Node *tmp; - *targetp = node_new_list(*targetp, NULL); - CHECK_NULL_RETURN_MEMERR(*targetp); - tmp = NCDR(*targetp) = node_new_list(qn, NULL); - CHECK_NULL_RETURN_MEMERR(tmp); - targetp = &(NCAR(tmp)); + *targetp = node_new_list(*targetp, NULL); + if (IS_NULL(*targetp)) { + onig_node_free(qn); + return ONIGERR_MEMORY; + } + tmp = NCDR(*targetp) = node_new_list(qn, NULL); + if (IS_NULL(tmp)) { + onig_node_free(qn); + return ONIGERR_MEMORY; + } + targetp = &(NCAR(tmp)); } goto re_entry; } @@ -5220,14 +6686,17 @@ parse_exp(Node** np, OnigToken* tok, int term, static int parse_branch(Node** top, OnigToken* tok, int term, - UChar** src, UChar* end, ScanEnv* env) + UChar** src, UChar* end, ScanEnv* env) { int r; Node *node, **headp; *top = NULL; r = parse_exp(&node, tok, term, src, end, env); - if (r < 0) return r; + if (r < 0) { + onig_node_free(node); + return r; + } if (r == TK_EOT || r == term || r == TK_ALT) { *top = node; @@ -5237,16 +6706,19 @@ parse_branch(Node** top, OnigToken* tok, int term, headp = &(NCDR(*top)); while (r != TK_EOT && r != term && r != TK_ALT) { r = parse_exp(&node, tok, term, src, end, env); - if (r < 0) return r; + if (r < 0) { + onig_node_free(node); + return r; + } if (NTYPE(node) == NT_LIST) { - *headp = node; - while (IS_NOT_NULL(NCDR(node))) node = NCDR(node); - headp = &(NCDR(node)); + *headp = node; + while (IS_NOT_NULL(NCDR(node))) node = NCDR(node); + headp = &(NCDR(node)); } else { - *headp = node_new_list(node, NULL); - headp = &(NCDR(*headp)); + *headp = node_new_list(node, NULL); + headp = &(NCDR(*headp)); } } } @@ -5257,12 +6729,15 @@ parse_branch(Node** top, OnigToken* tok, int term, /* term_tok: TK_EOT or TK_SUBEXP_CLOSE */ static int parse_subexp(Node** top, OnigToken* tok, int term, - UChar** src, UChar* end, ScanEnv* env) + UChar** src, UChar* end, ScanEnv* env) { int r; - Node *node, **headp; + Node *node, *topnode, **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); if (r < 0) { onig_node_free(node); @@ -5273,22 +6748,32 @@ parse_subexp(Node** top, OnigToken* tok, int term, *top = node; } else if (r == TK_ALT) { - *top = onig_node_new_alt(node, NULL); - headp = &(NCDR(*top)); + topnode = onig_node_new_alt(node, NULL); + headp = &(NCDR(topnode)); while (r == TK_ALT) { r = fetch_token(tok, src, end, env); - if (r < 0) return r; + if (r < 0) { + onig_node_free(topnode); + return r; + } r = parse_branch(&node, tok, term, src, end, env); - if (r < 0) return r; + if (r < 0) { + onig_node_free(topnode); + return r; + } *headp = onig_node_new_alt(node, NULL); - headp = &(NCDR(*headp)); + headp = &(NCDR(*headp)); } - if (tok->type != term) + if (tok->type != (enum TokenSyms )term) { + onig_node_free(topnode); goto err; + } + *top = topnode; } else { + onig_node_free(node); err: if (term == TK_SUBEXP_CLOSE) return ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS; @@ -5296,6 +6781,7 @@ parse_subexp(Node** top, OnigToken* tok, int term, return ONIGERR_PARSER_BUG; } + env->parse_depth--; return r; } @@ -5309,12 +6795,30 @@ parse_regexp(Node** top, UChar** src, UChar* end, ScanEnv* env) if (r < 0) return r; r = parse_subexp(top, &tok, TK_EOT, src, end, env); if (r < 0) return r; + +#ifdef USE_SUBEXP_CALL + if (env->num_call > 0) { + /* Capture the pattern itself. It is used for (?R), (?0) and \g<0>. */ + const int num = 0; + Node* np; + np = node_new_enclose_memory(env->option, 0); + CHECK_NULL_RETURN_MEMERR(np); + NENCLOSE(np)->regnum = num; + NENCLOSE(np)->target = *top; + r = scan_env_set_mem_node(env, num, np); + if (r != 0) { + onig_node_free(np); + return r; + } + *top = np; + } +#endif return 0; } extern int onig_parse_make_tree(Node** root, const UChar* pattern, const UChar* end, - regex_t* reg, ScanEnv* env) + regex_t* reg, ScanEnv* env) { int r; UChar* p; @@ -5340,8 +6844,8 @@ onig_parse_make_tree(Node** root, const UChar* pattern, const UChar* end, } extern void -onig_scan_env_set_error_string(ScanEnv* env, int ecode, - UChar* arg, UChar* arg_end) +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; |