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      1 #ifndef REGINT_H
      2 #define REGINT_H
      3 /**********************************************************************
      4   regint.h -  Oniguruma (regular expression library)
      5 **********************************************************************/
      6 /*-
      7  * Copyright (c) 2002-2013  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
      8  * All rights reserved.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 /* for debug */
     33 /* #define ONIG_DEBUG_PARSE_TREE */
     34 /* #define ONIG_DEBUG_COMPILE */
     35 /* #define ONIG_DEBUG_SEARCH */
     36 /* #define ONIG_DEBUG_MATCH */
     37 /* #define ONIG_DONT_OPTIMIZE */
     38 
     39 /* for byte-code statistical data. */
     40 /* #define ONIG_DEBUG_STATISTICS */
     41 
     42 #if defined(ONIG_DEBUG_PARSE_TREE) || defined(ONIG_DEBUG_MATCH) || \
     43     defined(ONIG_DEBUG_SEARCH) || defined(ONIG_DEBUG_COMPILE) || \
     44     defined(ONIG_DEBUG_STATISTICS)
     45 #ifndef ONIG_DEBUG
     46 #define ONIG_DEBUG
     47 #endif
     48 #endif
     49 
     50 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
     51     (defined(__ppc__) && defined(__APPLE__)) || \
     52     defined(__x86_64) || defined(__x86_64__) || \
     53     defined(__mc68020__)
     54 #define PLATFORM_UNALIGNED_WORD_ACCESS
     55 #endif
     56 
     57 /* config */
     58 /* spec. config */
     59 #define USE_NAMED_GROUP
     60 #define USE_SUBEXP_CALL
     61 #define USE_BACKREF_WITH_LEVEL        /* \k<name+n>, \k<name-n> */
     62 #define USE_MONOMANIAC_CHECK_CAPTURES_IN_ENDLESS_REPEAT  /* /(?:()|())*\2/ */
     63 #define USE_NEWLINE_AT_END_OF_STRING_HAS_EMPTY_LINE     /* /\n$/ =~ "\n" */
     64 #define USE_WARNING_REDUNDANT_NESTED_REPEAT_OPERATOR
     65 /* #define USE_RECOMPILE_API */
     66 /* !!! moved to regenc.h. */ /* #define USE_CRNL_AS_LINE_TERMINATOR */
     67 
     68 /* internal config */
     69 #define USE_PARSE_TREE_NODE_RECYCLE
     70 #define USE_OP_PUSH_OR_JUMP_EXACT
     71 #define USE_QTFR_PEEK_NEXT
     72 #define USE_ST_LIBRARY
     73 #define USE_SHARED_CCLASS_TABLE
     74 
     75 #define INIT_MATCH_STACK_SIZE                     160
     76 #define DEFAULT_MATCH_STACK_LIMIT_SIZE              0 /* unlimited */
     77 
     78 #if defined(__GNUC__)
     79 #  define ARG_UNUSED  __attribute__ ((unused))
     80 #else
     81 #  define ARG_UNUSED
     82 #endif
     83 
     84 /* */
     85 /* escape other system UChar definition */
     86 //#include "config.h"
     87 #ifdef ONIG_ESCAPE_UCHAR_COLLISION
     88 #undef ONIG_ESCAPE_UCHAR_COLLISION
     89 #endif
     90 
     91 #define USE_WORD_BEGIN_END        /* "\<", "\>" */
     92 #define USE_CAPTURE_HISTORY
     93 #define USE_VARIABLE_META_CHARS
     94 #define USE_POSIX_API_REGION_OPTION
     95 #define USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE
     96 /* #define USE_COMBINATION_EXPLOSION_CHECK */     /* (X*)* */
     97 
     98 /* #define USE_MULTI_THREAD_SYSTEM */
     99 #define THREAD_SYSTEM_INIT      /* depend on thread system */
    100 #define THREAD_SYSTEM_END       /* depend on thread system */
    101 #define THREAD_ATOMIC_START     /* depend on thread system */
    102 #define THREAD_ATOMIC_END       /* depend on thread system */
    103 #define THREAD_PASS             /* depend on thread system */
    104 #define xmalloc     malloc
    105 #define xrealloc    realloc
    106 #define xcalloc     calloc
    107 #define xfree       free
    108 
    109 #define CHECK_INTERRUPT_IN_MATCH_AT
    110 
    111 #define st_init_table                  onig_st_init_table
    112 #define st_init_table_with_size        onig_st_init_table_with_size
    113 #define st_init_numtable               onig_st_init_numtable
    114 #define st_init_numtable_with_size     onig_st_init_numtable_with_size
    115 #define st_init_strtable               onig_st_init_strtable
    116 #define st_init_strtable_with_size     onig_st_init_strtable_with_size
    117 #define st_delete                      onig_st_delete
    118 #define st_delete_safe                 onig_st_delete_safe
    119 #define st_insert                      onig_st_insert
    120 #define st_lookup                      onig_st_lookup
    121 #define st_foreach                     onig_st_foreach
    122 #define st_add_direct                  onig_st_add_direct
    123 #define st_free_table                  onig_st_free_table
    124 #define st_cleanup_safe                onig_st_cleanup_safe
    125 #define st_copy                        onig_st_copy
    126 #define st_nothing_key_clone           onig_st_nothing_key_clone
    127 #define st_nothing_key_free            onig_st_nothing_key_free
    128 /* */
    129 #define onig_st_is_member              st_is_member
    130 
    131 #define STATE_CHECK_STRING_THRESHOLD_LEN             7
    132 #define STATE_CHECK_BUFF_MAX_SIZE               0x4000
    133 
    134 #define THREAD_PASS_LIMIT_COUNT     8
    135 //#define xmemset     memset
    136 //#define xmemcpy     memcpy
    137 //#define xmemmove    memmove
    138 
    139 #if defined(_WIN32) && !defined(__GNUC__)
    140 #define xalloca     _alloca
    141 #define xvsnprintf  _vsnprintf
    142 #else
    143 #define xalloca     alloca
    144 #define xvsnprintf  vsnprintf
    145 #endif
    146 
    147 
    148 #if defined(USE_RECOMPILE_API) && defined(USE_MULTI_THREAD_SYSTEM)
    149 #define ONIG_STATE_INC(reg) (reg)->state++
    150 #define ONIG_STATE_DEC(reg) (reg)->state--
    151 
    152 #define ONIG_STATE_INC_THREAD(reg) do {\
    153   THREAD_ATOMIC_START;\
    154   (reg)->state++;\
    155   THREAD_ATOMIC_END;\
    156 } while(0)
    157 #define ONIG_STATE_DEC_THREAD(reg) do {\
    158   THREAD_ATOMIC_START;\
    159   (reg)->state--;\
    160   THREAD_ATOMIC_END;\
    161 } while(0)
    162 #else
    163 #define ONIG_STATE_INC(reg)         /* Nothing */
    164 #define ONIG_STATE_DEC(reg)         /* Nothing */
    165 #define ONIG_STATE_INC_THREAD(reg)  /* Nothing */
    166 #define ONIG_STATE_DEC_THREAD(reg)  /* Nothing */
    167 #endif /* USE_RECOMPILE_API && USE_MULTI_THREAD_SYSTEM */
    168 
    169 #if 0
    170 #ifdef HAVE_STDLIB_H
    171 #include <stdlib.h>
    172 #endif
    173 
    174 #if defined(HAVE_ALLOCA_H) && !defined(__GNUC__)
    175 #include <alloca.h>
    176 #endif
    177 
    178 #ifdef HAVE_STRING_H
    179 # include <string.h>
    180 #else
    181 # include <strings.h>
    182 #endif
    183 
    184 #include <ctype.h>
    185 #ifdef HAVE_SYS_TYPES_H
    186 #ifndef __BORLANDC__
    187 #include <sys/types.h>
    188 #endif
    189 #endif
    190 
    191 #ifdef __BORLANDC__
    192 #include <malloc.h>
    193 #endif
    194 
    195 #ifdef ONIG_DEBUG
    196 # include <stdio.h>
    197 #endif
    198 #endif
    199 
    200 #include "regenc.h"
    201 
    202 #ifdef MIN
    203 #undef MIN
    204 #endif
    205 #ifdef MAX
    206 #undef MAX
    207 #endif
    208 #define MIN(a,b) (((a)>(b))?(b):(a))
    209 #define MAX(a,b) (((a)<(b))?(b):(a))
    210 
    211 #define IS_NULL(p)                    (((void*)(p)) == (void*)0)
    212 #define IS_NOT_NULL(p)                (((void*)(p)) != (void*)0)
    213 #define CHECK_NULL_RETURN(p)          if (IS_NULL(p)) return NULL
    214 #define CHECK_NULL_RETURN_MEMERR(p)   if (IS_NULL(p)) return ONIGERR_MEMORY
    215 #define NULL_UCHARP                   ((UChar* )0)
    216 
    217 #ifdef PLATFORM_UNALIGNED_WORD_ACCESS
    218 
    219 #define PLATFORM_GET_INC(val,p,type) do{\
    220   val  = *(type* )p;\
    221   (p) += sizeof(type);\
    222 } while(0)
    223 
    224 #else
    225 
    226 #define PLATFORM_GET_INC(val,p,type) do{\
    227   xmemcpy(&val, (p), sizeof(type));\
    228   (p) += sizeof(type);\
    229 } while(0)
    230 
    231 /* sizeof(OnigCodePoint) */
    232 #define WORD_ALIGNMENT_SIZE     SIZEOF_LONG
    233 
    234 #define GET_ALIGNMENT_PAD_SIZE(addr,pad_size) do {\
    235   (pad_size) = WORD_ALIGNMENT_SIZE \
    236                - ((unsigned int )(UINTN)(addr) % WORD_ALIGNMENT_SIZE);\
    237   if ((pad_size) == WORD_ALIGNMENT_SIZE) (pad_size) = 0;\
    238 } while (0)
    239 
    240 #define ALIGNMENT_RIGHT(addr) do {\
    241   (addr) += (WORD_ALIGNMENT_SIZE - 1);\
    242   (addr) -= ((unsigned int )(UINTN)(addr) % WORD_ALIGNMENT_SIZE);\
    243 } while (0)
    244 
    245 #endif /* PLATFORM_UNALIGNED_WORD_ACCESS */
    246 
    247 /* stack pop level */
    248 #define STACK_POP_LEVEL_FREE        0
    249 #define STACK_POP_LEVEL_MEM_START   1
    250 #define STACK_POP_LEVEL_ALL         2
    251 
    252 /* optimize flags */
    253 #define ONIG_OPTIMIZE_NONE              0
    254 #define ONIG_OPTIMIZE_EXACT             1   /* Slow Search */
    255 #define ONIG_OPTIMIZE_EXACT_BM          2   /* Boyer Moore Search */
    256 #define ONIG_OPTIMIZE_EXACT_BM_NOT_REV  3   /* BM   (but not simple match) */
    257 #define ONIG_OPTIMIZE_EXACT_IC          4   /* Slow Search (ignore case) */
    258 #define ONIG_OPTIMIZE_MAP               5   /* char map */
    259 
    260 /* bit status */
    261 typedef unsigned int  BitStatusType;
    262 
    263 #define BIT_STATUS_BITS_NUM          (sizeof(BitStatusType) * 8)
    264 #define BIT_STATUS_CLEAR(stats)      (stats) = 0
    265 #define BIT_STATUS_ON_ALL(stats)     (stats) = ~((BitStatusType )0)
    266 #define BIT_STATUS_AT(stats,n) \
    267   ((n) < (int )BIT_STATUS_BITS_NUM  ?  ((stats) & (1 << n)) : ((stats) & 1))
    268 
    269 #define BIT_STATUS_ON_AT(stats,n) do {\
    270     if ((n) < (int )BIT_STATUS_BITS_NUM)	\
    271     (stats) |= (1 << (n));\
    272   else\
    273     (stats) |= 1;\
    274 } while (0)
    275 
    276 #define BIT_STATUS_ON_AT_SIMPLE(stats,n) do {\
    277     if ((n) < (int )BIT_STATUS_BITS_NUM)\
    278     (stats) |= (1 << (n));\
    279 } while (0)
    280 
    281 
    282 #define INT_MAX_LIMIT           ((1UL << (SIZEOF_INT * 8 - 1)) - 1)
    283 
    284 #define DIGITVAL(code)    ((code) - '0')
    285 #define ODIGITVAL(code)   DIGITVAL(code)
    286 #define XDIGITVAL(enc,code) \
    287   (ONIGENC_IS_CODE_DIGIT(enc,code) ? DIGITVAL(code) \
    288    : (ONIGENC_IS_CODE_UPPER(enc,code) ? (code) - 'A' + 10 : (code) - 'a' + 10))
    289 
    290 #define IS_SINGLELINE(option)     ((option) & ONIG_OPTION_SINGLELINE)
    291 #define IS_MULTILINE(option)      ((option) & ONIG_OPTION_MULTILINE)
    292 #define IS_IGNORECASE(option)     ((option) & ONIG_OPTION_IGNORECASE)
    293 #define IS_EXTEND(option)         ((option) & ONIG_OPTION_EXTEND)
    294 #define IS_FIND_LONGEST(option)   ((option) & ONIG_OPTION_FIND_LONGEST)
    295 #define IS_FIND_NOT_EMPTY(option) ((option) & ONIG_OPTION_FIND_NOT_EMPTY)
    296 #define IS_FIND_CONDITION(option) ((option) & \
    297           (ONIG_OPTION_FIND_LONGEST | ONIG_OPTION_FIND_NOT_EMPTY))
    298 #define IS_NOTBOL(option)         ((option) & ONIG_OPTION_NOTBOL)
    299 #define IS_NOTEOL(option)         ((option) & ONIG_OPTION_NOTEOL)
    300 #define IS_POSIX_REGION(option)   ((option) & ONIG_OPTION_POSIX_REGION)
    301 
    302 /* OP_SET_OPTION is required for these options.
    303 #define IS_DYNAMIC_OPTION(option) \
    304   (((option) & (ONIG_OPTION_MULTILINE | ONIG_OPTION_IGNORECASE)) != 0)
    305 */
    306 /* ignore-case and multibyte status are included in compiled code. */
    307 #define IS_DYNAMIC_OPTION(option)  0
    308 
    309 #define DISABLE_CASE_FOLD_MULTI_CHAR(case_fold_flag) \
    310   ((case_fold_flag) & ~INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR)
    311 
    312 #define REPEAT_INFINITE         -1
    313 #define IS_REPEAT_INFINITE(n)   ((n) == REPEAT_INFINITE)
    314 
    315 /* bitset */
    316 #define BITS_PER_BYTE      8
    317 #define SINGLE_BYTE_SIZE   (1 << BITS_PER_BYTE)
    318 #define BITS_IN_ROOM       (sizeof(Bits) * BITS_PER_BYTE)
    319 #define BITSET_SIZE        (SINGLE_BYTE_SIZE / BITS_IN_ROOM)
    320 
    321 #ifdef PLATFORM_UNALIGNED_WORD_ACCESS
    322 typedef unsigned int   Bits;
    323 #else
    324 typedef unsigned char  Bits;
    325 #endif
    326 typedef Bits           BitSet[BITSET_SIZE];
    327 typedef Bits*          BitSetRef;
    328 
    329 #define SIZE_BITSET        sizeof(BitSet)
    330 
    331 #define BITSET_CLEAR(bs) do {\
    332   int id;\
    333   for (id = 0; id < (int )BITSET_SIZE; id++) { (bs)[id] = 0; }	\
    334 } while (0)
    335 
    336 #define BS_ROOM(bs,pos)            (bs)[pos / BITS_IN_ROOM]
    337 #define BS_BIT(pos)                (1 << (pos % BITS_IN_ROOM))
    338 
    339 #define BITSET_AT(bs, pos)         (BS_ROOM(bs,pos) & BS_BIT(pos))
    340 #define BITSET_SET_BIT(bs, pos)     BS_ROOM(bs,pos) |= BS_BIT(pos)
    341 #define BITSET_CLEAR_BIT(bs, pos)   BS_ROOM(bs,pos) &= ~(BS_BIT(pos))
    342 #define BITSET_INVERT_BIT(bs, pos)  BS_ROOM(bs,pos) ^= BS_BIT(pos)
    343 
    344 /* bytes buffer */
    345 typedef struct _BBuf {
    346   UChar* p;
    347   unsigned int used;
    348   unsigned int alloc;
    349 } BBuf;
    350 
    351 #define BBUF_INIT(buf,size)    onig_bbuf_init((BBuf* )(buf), (size))
    352 
    353 #define BBUF_SIZE_INC(buf,inc) do{\
    354   (buf)->alloc += (inc);\
    355   (buf)->p = (UChar* )xrealloc((buf)->p, (buf)->alloc);\
    356   if (IS_NULL((buf)->p)) return(ONIGERR_MEMORY);\
    357 } while (0)
    358 
    359 #define BBUF_EXPAND(buf,low) do{\
    360   unsigned int OldSize_ = (buf)->alloc * sizeof((buf)->p[0]);\
    361   do { (buf)->alloc *= 2; } while ((buf)->alloc < (unsigned int )low);\
    362   (buf)->p = (UChar* )xrealloc((buf)->p, (buf)->alloc, OldSize_);\
    363   if (IS_NULL((buf)->p)) return(ONIGERR_MEMORY);\
    364 } while (0)
    365 
    366 #define BBUF_ENSURE_SIZE(buf,size) do{\
    367   unsigned int new_alloc = (buf)->alloc;\
    368   while (new_alloc < (unsigned int )(size)) { new_alloc *= 2; }\
    369   if ((buf)->alloc != new_alloc) {\
    370     (buf)->p = (UChar* )xrealloc((buf)->p, new_alloc, (buf)->alloc);\
    371     if (IS_NULL((buf)->p)) return(ONIGERR_MEMORY);\
    372     (buf)->alloc = new_alloc;\
    373   }\
    374 } while (0)
    375 
    376 #define BBUF_WRITE(buf,pos,bytes,n) do{\
    377   int used = (pos) + (n);\
    378   if ((buf)->alloc < (unsigned int )used) BBUF_EXPAND((buf),used);\
    379   xmemcpy((buf)->p + (pos), (bytes), (n));\
    380   if ((buf)->used < (unsigned int )used) (buf)->used = used;\
    381 } while (0)
    382 
    383 #define BBUF_WRITE1(buf,pos,byte) do{\
    384   int used = (pos) + 1;\
    385   if ((buf)->alloc < (unsigned int )used) BBUF_EXPAND((buf),used);\
    386   (buf)->p[(pos)] = (byte);\
    387   if ((buf)->used < (unsigned int )used) (buf)->used = used;\
    388 } while (0)
    389 
    390 #define BBUF_ADD(buf,bytes,n)       BBUF_WRITE((buf),(buf)->used,(bytes),(n))
    391 #define BBUF_ADD1(buf,byte)         BBUF_WRITE1((buf),(buf)->used,(byte))
    392 #define BBUF_GET_ADD_ADDRESS(buf)   ((buf)->p + (buf)->used)
    393 #define BBUF_GET_OFFSET_POS(buf)    ((buf)->used)
    394 
    395 /* from < to */
    396 #define BBUF_MOVE_RIGHT(buf,from,to,n) do {\
    397   if ((unsigned int )((to)+(n)) > (buf)->alloc) BBUF_EXPAND((buf),(to) + (n));\
    398   xmemmove((buf)->p + (to), (buf)->p + (from), (n));\
    399   if ((unsigned int )((to)+(n)) > (buf)->used) (buf)->used = (to) + (n);\
    400 } while (0)
    401 
    402 /* from > to */
    403 #define BBUF_MOVE_LEFT(buf,from,to,n) do {\
    404   xmemmove((buf)->p + (to), (buf)->p + (from), (n));\
    405 } while (0)
    406 
    407 /* from > to */
    408 #define BBUF_MOVE_LEFT_REDUCE(buf,from,to) do {\
    409   xmemmove((buf)->p + (to), (buf)->p + (from), (buf)->used - (from));\
    410   (buf)->used -= (from - to);\
    411 } while (0)
    412 
    413 #define BBUF_INSERT(buf,pos,bytes,n) do {\
    414   if (pos >= (buf)->used) {\
    415     BBUF_WRITE(buf,pos,bytes,n);\
    416   }\
    417   else {\
    418     BBUF_MOVE_RIGHT((buf),(pos),(pos) + (n),((buf)->used - (pos)));\
    419     xmemcpy((buf)->p + (pos), (bytes), (n));\
    420   }\
    421 } while (0)
    422 
    423 #define BBUF_GET_BYTE(buf, pos) (buf)->p[(pos)]
    424 
    425 
    426 #define ANCHOR_BEGIN_BUF        (1<<0)
    427 #define ANCHOR_BEGIN_LINE       (1<<1)
    428 #define ANCHOR_BEGIN_POSITION   (1<<2)
    429 #define ANCHOR_END_BUF          (1<<3)
    430 #define ANCHOR_SEMI_END_BUF     (1<<4)
    431 #define ANCHOR_END_LINE         (1<<5)
    432 
    433 #define ANCHOR_WORD_BOUND       (1<<6)
    434 #define ANCHOR_NOT_WORD_BOUND   (1<<7)
    435 #define ANCHOR_WORD_BEGIN       (1<<8)
    436 #define ANCHOR_WORD_END         (1<<9)
    437 #define ANCHOR_PREC_READ        (1<<10)
    438 #define ANCHOR_PREC_READ_NOT    (1<<11)
    439 #define ANCHOR_LOOK_BEHIND      (1<<12)
    440 #define ANCHOR_LOOK_BEHIND_NOT  (1<<13)
    441 
    442 #define ANCHOR_ANYCHAR_STAR     (1<<14)   /* ".*" optimize info */
    443 #define ANCHOR_ANYCHAR_STAR_ML  (1<<15)   /* ".*" optimize info (multi-line) */
    444 
    445 /* operation code */
    446 enum OpCode {
    447   OP_FINISH = 0,        /* matching process terminator (no more alternative) */
    448   OP_END    = 1,        /* pattern code terminator (success end) */
    449 
    450   OP_EXACT1 = 2,        /* single byte, N = 1 */
    451   OP_EXACT2,            /* single byte, N = 2 */
    452   OP_EXACT3,            /* single byte, N = 3 */
    453   OP_EXACT4,            /* single byte, N = 4 */
    454   OP_EXACT5,            /* single byte, N = 5 */
    455   OP_EXACTN,            /* single byte */
    456   OP_EXACTMB2N1,        /* mb-length = 2 N = 1 */
    457   OP_EXACTMB2N2,        /* mb-length = 2 N = 2 */
    458   OP_EXACTMB2N3,        /* mb-length = 2 N = 3 */
    459   OP_EXACTMB2N,         /* mb-length = 2 */
    460   OP_EXACTMB3N,         /* mb-length = 3 */
    461   OP_EXACTMBN,          /* other length */
    462 
    463   OP_EXACT1_IC,         /* single byte, N = 1, ignore case */
    464   OP_EXACTN_IC,         /* single byte,        ignore case */
    465 
    466   OP_CCLASS,
    467   OP_CCLASS_MB,
    468   OP_CCLASS_MIX,
    469   OP_CCLASS_NOT,
    470   OP_CCLASS_MB_NOT,
    471   OP_CCLASS_MIX_NOT,
    472   OP_CCLASS_NODE,       /* pointer to CClassNode node */
    473 
    474   OP_ANYCHAR,                 /* "."  */
    475   OP_ANYCHAR_ML,              /* "."  multi-line */
    476   OP_ANYCHAR_STAR,            /* ".*" */
    477   OP_ANYCHAR_ML_STAR,         /* ".*" multi-line */
    478   OP_ANYCHAR_STAR_PEEK_NEXT,
    479   OP_ANYCHAR_ML_STAR_PEEK_NEXT,
    480 
    481   OP_WORD,
    482   OP_NOT_WORD,
    483   OP_WORD_BOUND,
    484   OP_NOT_WORD_BOUND,
    485   OP_WORD_BEGIN,
    486   OP_WORD_END,
    487 
    488   OP_BEGIN_BUF,
    489   OP_END_BUF,
    490   OP_BEGIN_LINE,
    491   OP_END_LINE,
    492   OP_SEMI_END_BUF,
    493   OP_BEGIN_POSITION,
    494 
    495   OP_BACKREF1,
    496   OP_BACKREF2,
    497   OP_BACKREFN,
    498   OP_BACKREFN_IC,
    499   OP_BACKREF_MULTI,
    500   OP_BACKREF_MULTI_IC,
    501   OP_BACKREF_WITH_LEVEL,    /* \k<xxx+n>, \k<xxx-n> */
    502 
    503   OP_MEMORY_START,
    504   OP_MEMORY_START_PUSH,   /* push back-tracker to stack */
    505   OP_MEMORY_END_PUSH,     /* push back-tracker to stack */
    506   OP_MEMORY_END_PUSH_REC, /* push back-tracker to stack */
    507   OP_MEMORY_END,
    508   OP_MEMORY_END_REC,      /* push marker to stack */
    509 
    510   OP_FAIL,               /* pop stack and move */
    511   OP_JUMP,
    512   OP_PUSH,
    513   OP_POP,
    514   OP_PUSH_OR_JUMP_EXACT1,  /* if match exact then push, else jump. */
    515   OP_PUSH_IF_PEEK_NEXT,    /* if match exact then push, else none. */
    516   OP_REPEAT,               /* {n,m} */
    517   OP_REPEAT_NG,            /* {n,m}? (non greedy) */
    518   OP_REPEAT_INC,
    519   OP_REPEAT_INC_NG,        /* non greedy */
    520   OP_REPEAT_INC_SG,        /* search and get in stack */
    521   OP_REPEAT_INC_NG_SG,     /* search and get in stack (non greedy) */
    522   OP_NULL_CHECK_START,     /* null loop checker start */
    523   OP_NULL_CHECK_END,       /* null loop checker end   */
    524   OP_NULL_CHECK_END_MEMST, /* null loop checker end (with capture status) */
    525   OP_NULL_CHECK_END_MEMST_PUSH, /* with capture status and push check-end */
    526 
    527   OP_PUSH_POS,             /* (?=...)  start */
    528   OP_POP_POS,              /* (?=...)  end   */
    529   OP_PUSH_POS_NOT,         /* (?!...)  start */
    530   OP_FAIL_POS,             /* (?!...)  end   */
    531   OP_PUSH_STOP_BT,         /* (?>...)  start */
    532   OP_POP_STOP_BT,          /* (?>...)  end   */
    533   OP_LOOK_BEHIND,          /* (?<=...) start (no needs end opcode) */
    534   OP_PUSH_LOOK_BEHIND_NOT, /* (?<!...) start */
    535   OP_FAIL_LOOK_BEHIND_NOT, /* (?<!...) end   */
    536 
    537   OP_CALL,                 /* \g<name> */
    538   OP_RETURN,
    539 
    540   OP_STATE_CHECK_PUSH,         /* combination explosion check and push */
    541   OP_STATE_CHECK_PUSH_OR_JUMP, /* check ok -> push, else jump  */
    542   OP_STATE_CHECK,              /* check only */
    543   OP_STATE_CHECK_ANYCHAR_STAR,
    544   OP_STATE_CHECK_ANYCHAR_ML_STAR,
    545 
    546   /* no need: IS_DYNAMIC_OPTION() == 0 */
    547   OP_SET_OPTION_PUSH,    /* set option and push recover option */
    548   OP_SET_OPTION          /* set option */
    549 };
    550 
    551 typedef int RelAddrType;
    552 typedef int AbsAddrType;
    553 typedef int LengthType;
    554 typedef int RepeatNumType;
    555 typedef short int MemNumType;
    556 typedef short int StateCheckNumType;
    557 typedef void* PointerType;
    558 
    559 #define SIZE_OPCODE           1
    560 #define SIZE_RELADDR          sizeof(RelAddrType)
    561 #define SIZE_ABSADDR          sizeof(AbsAddrType)
    562 #define SIZE_LENGTH           sizeof(LengthType)
    563 #define SIZE_MEMNUM           sizeof(MemNumType)
    564 #define SIZE_STATE_CHECK_NUM  sizeof(StateCheckNumType)
    565 #define SIZE_REPEATNUM        sizeof(RepeatNumType)
    566 #define SIZE_OPTION           sizeof(OnigOptionType)
    567 #define SIZE_CODE_POINT       sizeof(OnigCodePoint)
    568 #define SIZE_POINTER          sizeof(PointerType)
    569 
    570 
    571 #define GET_RELADDR_INC(addr,p)    PLATFORM_GET_INC(addr,   p, RelAddrType)
    572 #define GET_ABSADDR_INC(addr,p)    PLATFORM_GET_INC(addr,   p, AbsAddrType)
    573 #define GET_LENGTH_INC(len,p)      PLATFORM_GET_INC(len,    p, LengthType)
    574 #define GET_MEMNUM_INC(num,p)      PLATFORM_GET_INC(num,    p, MemNumType)
    575 #define GET_REPEATNUM_INC(num,p)   PLATFORM_GET_INC(num,    p, RepeatNumType)
    576 #define GET_OPTION_INC(option,p)   PLATFORM_GET_INC(option, p, OnigOptionType)
    577 #define GET_POINTER_INC(ptr,p)     PLATFORM_GET_INC(ptr,    p, PointerType)
    578 #define GET_STATE_CHECK_NUM_INC(num,p)  PLATFORM_GET_INC(num, p, StateCheckNumType)
    579 
    580 /* code point's address must be aligned address. */
    581 #define GET_CODE_POINT(code,p)   code = *((OnigCodePoint* )(p))
    582 #define GET_BYTE_INC(byte,p) do{\
    583   byte = *(p);\
    584   (p)++;\
    585 } while(0)
    586 
    587 
    588 /* op-code + arg size */
    589 #define SIZE_OP_ANYCHAR_STAR            SIZE_OPCODE
    590 #define SIZE_OP_ANYCHAR_STAR_PEEK_NEXT (SIZE_OPCODE + 1)
    591 #define SIZE_OP_JUMP                   (SIZE_OPCODE + SIZE_RELADDR)
    592 #define SIZE_OP_PUSH                   (SIZE_OPCODE + SIZE_RELADDR)
    593 #define SIZE_OP_POP                     SIZE_OPCODE
    594 #define SIZE_OP_PUSH_OR_JUMP_EXACT1    (SIZE_OPCODE + SIZE_RELADDR + 1)
    595 #define SIZE_OP_PUSH_IF_PEEK_NEXT      (SIZE_OPCODE + SIZE_RELADDR + 1)
    596 #define SIZE_OP_REPEAT_INC             (SIZE_OPCODE + SIZE_MEMNUM)
    597 #define SIZE_OP_REPEAT_INC_NG          (SIZE_OPCODE + SIZE_MEMNUM)
    598 #define SIZE_OP_PUSH_POS                SIZE_OPCODE
    599 #define SIZE_OP_PUSH_POS_NOT           (SIZE_OPCODE + SIZE_RELADDR)
    600 #define SIZE_OP_POP_POS                 SIZE_OPCODE
    601 #define SIZE_OP_FAIL_POS                SIZE_OPCODE
    602 #define SIZE_OP_SET_OPTION             (SIZE_OPCODE + SIZE_OPTION)
    603 #define SIZE_OP_SET_OPTION_PUSH        (SIZE_OPCODE + SIZE_OPTION)
    604 #define SIZE_OP_FAIL                    SIZE_OPCODE
    605 #define SIZE_OP_MEMORY_START           (SIZE_OPCODE + SIZE_MEMNUM)
    606 #define SIZE_OP_MEMORY_START_PUSH      (SIZE_OPCODE + SIZE_MEMNUM)
    607 #define SIZE_OP_MEMORY_END_PUSH        (SIZE_OPCODE + SIZE_MEMNUM)
    608 #define SIZE_OP_MEMORY_END_PUSH_REC    (SIZE_OPCODE + SIZE_MEMNUM)
    609 #define SIZE_OP_MEMORY_END             (SIZE_OPCODE + SIZE_MEMNUM)
    610 #define SIZE_OP_MEMORY_END_REC         (SIZE_OPCODE + SIZE_MEMNUM)
    611 #define SIZE_OP_PUSH_STOP_BT            SIZE_OPCODE
    612 #define SIZE_OP_POP_STOP_BT             SIZE_OPCODE
    613 #define SIZE_OP_NULL_CHECK_START       (SIZE_OPCODE + SIZE_MEMNUM)
    614 #define SIZE_OP_NULL_CHECK_END         (SIZE_OPCODE + SIZE_MEMNUM)
    615 #define SIZE_OP_LOOK_BEHIND            (SIZE_OPCODE + SIZE_LENGTH)
    616 #define SIZE_OP_PUSH_LOOK_BEHIND_NOT   (SIZE_OPCODE + SIZE_RELADDR + SIZE_LENGTH)
    617 #define SIZE_OP_FAIL_LOOK_BEHIND_NOT    SIZE_OPCODE
    618 #define SIZE_OP_CALL                   (SIZE_OPCODE + SIZE_ABSADDR)
    619 #define SIZE_OP_RETURN                  SIZE_OPCODE
    620 
    621 #ifdef USE_COMBINATION_EXPLOSION_CHECK
    622 #define SIZE_OP_STATE_CHECK            (SIZE_OPCODE + SIZE_STATE_CHECK_NUM)
    623 #define SIZE_OP_STATE_CHECK_PUSH       (SIZE_OPCODE + SIZE_STATE_CHECK_NUM + SIZE_RELADDR)
    624 #define SIZE_OP_STATE_CHECK_PUSH_OR_JUMP (SIZE_OPCODE + SIZE_STATE_CHECK_NUM + SIZE_RELADDR)
    625 #define SIZE_OP_STATE_CHECK_ANYCHAR_STAR (SIZE_OPCODE + SIZE_STATE_CHECK_NUM)
    626 #endif
    627 
    628 #define MC_ESC(syn)               (syn)->meta_char_table.esc
    629 #define MC_ANYCHAR(syn)           (syn)->meta_char_table.anychar
    630 #define MC_ANYTIME(syn)           (syn)->meta_char_table.anytime
    631 #define MC_ZERO_OR_ONE_TIME(syn)  (syn)->meta_char_table.zero_or_one_time
    632 #define MC_ONE_OR_MORE_TIME(syn)  (syn)->meta_char_table.one_or_more_time
    633 #define MC_ANYCHAR_ANYTIME(syn)   (syn)->meta_char_table.anychar_anytime
    634 
    635 #define IS_MC_ESC_CODE(code, syn) \
    636   ((code) == MC_ESC(syn) && \
    637    !IS_SYNTAX_OP2((syn), ONIG_SYN_OP2_INEFFECTIVE_ESCAPE))
    638 
    639 
    640 #define SYN_POSIX_COMMON_OP \
    641  ( ONIG_SYN_OP_DOT_ANYCHAR | ONIG_SYN_OP_POSIX_BRACKET | \
    642    ONIG_SYN_OP_DECIMAL_BACKREF | \
    643    ONIG_SYN_OP_BRACKET_CC | ONIG_SYN_OP_ASTERISK_ZERO_INF | \
    644    ONIG_SYN_OP_LINE_ANCHOR | \
    645    ONIG_SYN_OP_ESC_CONTROL_CHARS )
    646 
    647 #define SYN_GNU_REGEX_OP \
    648   ( ONIG_SYN_OP_DOT_ANYCHAR | ONIG_SYN_OP_BRACKET_CC | \
    649     ONIG_SYN_OP_POSIX_BRACKET | ONIG_SYN_OP_DECIMAL_BACKREF | \
    650     ONIG_SYN_OP_BRACE_INTERVAL | ONIG_SYN_OP_LPAREN_SUBEXP | \
    651     ONIG_SYN_OP_VBAR_ALT | \
    652     ONIG_SYN_OP_ASTERISK_ZERO_INF | ONIG_SYN_OP_PLUS_ONE_INF | \
    653     ONIG_SYN_OP_QMARK_ZERO_ONE | \
    654     ONIG_SYN_OP_ESC_AZ_BUF_ANCHOR | ONIG_SYN_OP_ESC_CAPITAL_G_BEGIN_ANCHOR | \
    655     ONIG_SYN_OP_ESC_W_WORD | \
    656     ONIG_SYN_OP_ESC_B_WORD_BOUND | ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END | \
    657     ONIG_SYN_OP_ESC_S_WHITE_SPACE | ONIG_SYN_OP_ESC_D_DIGIT | \
    658     ONIG_SYN_OP_LINE_ANCHOR )
    659 
    660 #define SYN_GNU_REGEX_BV \
    661   ( ONIG_SYN_CONTEXT_INDEP_ANCHORS | ONIG_SYN_CONTEXT_INDEP_REPEAT_OPS | \
    662     ONIG_SYN_CONTEXT_INVALID_REPEAT_OPS | ONIG_SYN_ALLOW_INVALID_INTERVAL | \
    663     ONIG_SYN_BACKSLASH_ESCAPE_IN_CC | ONIG_SYN_ALLOW_DOUBLE_RANGE_OP_IN_CC )
    664 
    665 
    666 #define NCCLASS_FLAGS(cc)           ((cc)->flags)
    667 #define NCCLASS_FLAG_SET(cc,flag)    (NCCLASS_FLAGS(cc) |= (flag))
    668 #define NCCLASS_FLAG_CLEAR(cc,flag)  (NCCLASS_FLAGS(cc) &= ~(flag))
    669 #define IS_NCCLASS_FLAG_ON(cc,flag) ((NCCLASS_FLAGS(cc) & (flag)) != 0)
    670 
    671 /* cclass node */
    672 #define FLAG_NCCLASS_NOT           (1<<0)
    673 #define FLAG_NCCLASS_SHARE         (1<<1)
    674 
    675 #define NCCLASS_SET_NOT(nd)     NCCLASS_FLAG_SET(nd, FLAG_NCCLASS_NOT)
    676 #define NCCLASS_SET_SHARE(nd)   NCCLASS_FLAG_SET(nd, FLAG_NCCLASS_SHARE)
    677 #define NCCLASS_CLEAR_NOT(nd)   NCCLASS_FLAG_CLEAR(nd, FLAG_NCCLASS_NOT)
    678 #define IS_NCCLASS_NOT(nd)      IS_NCCLASS_FLAG_ON(nd, FLAG_NCCLASS_NOT)
    679 #define IS_NCCLASS_SHARE(nd)    IS_NCCLASS_FLAG_ON(nd, FLAG_NCCLASS_SHARE)
    680 
    681 typedef struct {
    682   int type;
    683   /* struct _Node* next; */
    684   /* unsigned int flags; */
    685 } NodeBase;
    686 
    687 typedef struct {
    688   NodeBase base;
    689   unsigned int flags;
    690   BitSet bs;
    691   BBuf*  mbuf;   /* multi-byte info or NULL */
    692 } CClassNode;
    693 
    694 typedef long OnigStackIndex;
    695 
    696 typedef struct _OnigStackType {
    697   unsigned int type;
    698   union {
    699     struct {
    700       UChar *pcode;      /* byte code position */
    701       UChar *pstr;       /* string position */
    702       UChar *pstr_prev;  /* previous char position of pstr */
    703 #ifdef USE_COMBINATION_EXPLOSION_CHECK
    704       unsigned int state_check;
    705 #endif
    706     } state;
    707     struct {
    708       int   count;       /* for OP_REPEAT_INC, OP_REPEAT_INC_NG */
    709       UChar *pcode;      /* byte code position (head of repeated target) */
    710       int   num;         /* repeat id */
    711     } repeat;
    712     struct {
    713       OnigStackIndex si;     /* index of stack */
    714     } repeat_inc;
    715     struct {
    716       int num;           /* memory num */
    717       UChar *pstr;       /* start/end position */
    718       /* Following information is setted, if this stack type is MEM-START */
    719       OnigStackIndex start;  /* prev. info (for backtrack  "(...)*" ) */
    720       OnigStackIndex end;    /* prev. info (for backtrack  "(...)*" ) */
    721     } mem;
    722     struct {
    723       int num;           /* null check id */
    724       UChar *pstr;       /* start position */
    725     } null_check;
    726 #ifdef USE_SUBEXP_CALL
    727     struct {
    728       UChar *ret_addr;   /* byte code position */
    729       int    num;        /* null check id */
    730       UChar *pstr;       /* string position */
    731     } call_frame;
    732 #endif
    733   } u;
    734 } OnigStackType;
    735 
    736 typedef struct {
    737   void* stack_p;
    738   int   stack_n;
    739   OnigOptionType options;
    740   OnigRegion*    region;
    741   const UChar* start;   /* search start position (for \G: BEGIN_POSITION) */
    742 #ifdef USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE
    743   int    best_len;      /* for ONIG_OPTION_FIND_LONGEST */
    744   UChar* best_s;
    745 #endif
    746 #ifdef USE_COMBINATION_EXPLOSION_CHECK
    747   void* state_check_buff;
    748   int   state_check_buff_size;
    749 #endif
    750 } OnigMatchArg;
    751 
    752 
    753 #define IS_CODE_SB_WORD(enc,code) \
    754   (ONIGENC_IS_CODE_ASCII(code) && ONIGENC_IS_CODE_WORD(enc,code))
    755 
    756 typedef struct OnigEndCallListItem {
    757   struct OnigEndCallListItem* next;
    758   void (*func)(void);
    759 } OnigEndCallListItemType;
    760 
    761 extern void onig_add_end_call(void (*func)(void));
    762 
    763 
    764 #ifdef ONIG_DEBUG
    765 
    766 typedef struct {
    767   short int opcode;
    768   char*     name;
    769   short int arg_type;
    770 } OnigOpInfoType;
    771 
    772 extern OnigOpInfoType OnigOpInfo[];
    773 
    774 
    775 extern void onig_print_compiled_byte_code P_((FILE* f, UChar* bp, UChar** nextp, OnigEncoding enc));
    776 
    777 #ifdef ONIG_DEBUG_STATISTICS
    778 extern void onig_statistics_init P_((void));
    779 extern void onig_print_statistics P_((FILE* f));
    780 #endif
    781 #endif
    782 
    783 extern UChar* onig_error_code_to_format P_((int code));
    784 extern void  onig_snprintf_with_pattern PV_((UChar buf[], int bufsize, OnigEncoding enc, UChar* pat, UChar* pat_end, const UChar *fmt, ...));
    785 extern int  onig_bbuf_init P_((BBuf* buf, int size));
    786 extern int  onig_compile P_((regex_t* reg, const UChar* pattern, const UChar* pattern_end, OnigErrorInfo* einfo));
    787 extern void onig_chain_reduce P_((regex_t* reg));
    788 extern void onig_chain_link_add P_((regex_t* to, regex_t* add));
    789 extern void onig_transfer P_((regex_t* to, regex_t* from));
    790 extern int  onig_is_code_in_cc P_((OnigEncoding enc, OnigCodePoint code, CClassNode* cc));
    791 extern int  onig_is_code_in_cc_len P_((int enclen, OnigCodePoint code, CClassNode* cc));
    792 
    793 /* strend hash */
    794 typedef void hash_table_type;
    795 typedef unsigned long hash_data_type;
    796 
    797 extern hash_table_type* onig_st_init_strend_table_with_size P_((int size));
    798 extern int onig_st_lookup_strend P_((hash_table_type* table, const UChar* str_key, const UChar* end_key, hash_data_type *value));
    799 extern int onig_st_insert_strend P_((hash_table_type* table, const UChar* str_key, const UChar* end_key, hash_data_type value));
    800 
    801 /* encoding property management */
    802 #define PROPERTY_LIST_ADD_PROP(Name, CR) \
    803   r = onigenc_property_list_add_property((UChar* )Name, CR,\
    804 	      &PropertyNameTable, &PropertyList, &PropertyListNum,\
    805 	      &PropertyListSize);\
    806   if (r != 0) goto end
    807 
    808 #define PROPERTY_LIST_INIT_CHECK \
    809   if (PropertyInited == 0) {\
    810     int r = onigenc_property_list_init(init_property_list);\
    811     if (r != 0) return r;\
    812   }
    813 
    814 extern int onigenc_property_list_add_property P_((UChar* name, const OnigCodePoint* prop, hash_table_type **table, const OnigCodePoint*** plist, int *pnum, int *psize));
    815 
    816 typedef int (*ONIGENC_INIT_PROPERTY_LIST_FUNC_TYPE)(void);
    817 
    818 extern int onigenc_property_list_init P_((ONIGENC_INIT_PROPERTY_LIST_FUNC_TYPE));
    819 
    820 #endif /* REGINT_H */
    821