Ruby 3.2.1p31 (2023-02-08 revision 31819e82c88c6f8ecfaeb162519bfa26a14b21fd)
regint.h
1#ifndef ONIGMO_REGINT_H
2#define ONIGMO_REGINT_H
3/**********************************************************************
4 regint.h - Onigmo (Oniguruma-mod) (regular expression library)
5**********************************************************************/
6/*-
7 * Copyright (c) 2002-2013 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
8 * Copyright (c) 2011-2016 K.Takata <kentkt AT csc DOT jp>
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33/* for debug */
34/* #define ONIG_DEBUG_PARSE_TREE */
35/* #define ONIG_DEBUG_COMPILE */
36/* #define ONIG_DEBUG_SEARCH */
37/* #define ONIG_DEBUG_MATCH */
38/* #define ONIG_DEBUG_MEMLEAK */
39/* #define ONIG_DONT_OPTIMIZE */
40
41/* for byte-code statistical data. */
42/* #define ONIG_DEBUG_STATISTICS */
43
44/* enable matching optimization by using cache. */
45#define USE_CACHE_MATCH_OPT
46
47#ifdef USE_CACHE_MATCH_OPT
48# define NUM_CACHE_OPCODE_FAIL -1
49# define NUM_CACHE_OPCODE_UNINIT -2
50#endif
51
52#if defined(ONIG_DEBUG_PARSE_TREE) || defined(ONIG_DEBUG_MATCH) || \
53 defined(ONIG_DEBUG_SEARCH) || defined(ONIG_DEBUG_COMPILE) || \
54 defined(ONIG_DEBUG_STATISTICS) || defined(ONIG_DEBUG_MEMLEAK)
55# ifndef ONIG_DEBUG
56# define ONIG_DEBUG
57# endif
58#endif
59
60/* __POWERPC__ added to accommodate Darwin case. */
61#ifndef UNALIGNED_WORD_ACCESS
62# if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
63 defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || \
64 defined(__powerpc64__) || defined(__POWERPC__) || defined(__aarch64__) || \
65 defined(__mc68020__)
66# define UNALIGNED_WORD_ACCESS 1
67# else
68# define UNALIGNED_WORD_ACCESS 0
69# endif
70#endif
71
72#if UNALIGNED_WORD_ACCESS
73# define PLATFORM_UNALIGNED_WORD_ACCESS
74#endif
75
76/* config */
77/* spec. config */
78#define USE_NAMED_GROUP
79#define USE_SUBEXP_CALL
80#define USE_PERL_SUBEXP_CALL
81#define USE_CAPITAL_P_NAMED_GROUP
82#define USE_BACKREF_WITH_LEVEL /* \k<name+n>, \k<name-n> */
83#define USE_MONOMANIAC_CHECK_CAPTURES_IN_ENDLESS_REPEAT /* /(?:()|())*\2/ */
84#define USE_NEWLINE_AT_END_OF_STRING_HAS_EMPTY_LINE /* /\n$/ =~ "\n" */
85#define USE_WARNING_REDUNDANT_NESTED_REPEAT_OPERATOR
86/* !!! moved to regenc.h. */ /* #define USE_CRNL_AS_LINE_TERMINATOR */
87#define USE_NO_INVALID_QUANTIFIER
88
89/* internal config */
90/* #define USE_OP_PUSH_OR_JUMP_EXACT */
91#define USE_QTFR_PEEK_NEXT
92#define USE_ST_LIBRARY
93#define USE_SUNDAY_QUICK_SEARCH
94
95#define INIT_MATCH_STACK_SIZE 160
96#define DEFAULT_MATCH_STACK_LIMIT_SIZE 0 /* unlimited */
97#define DEFAULT_PARSE_DEPTH_LIMIT 4096
98
99#define OPT_EXACT_MAXLEN 24
100
101/* check config */
102#if defined(USE_PERL_SUBEXP_CALL) || defined(USE_CAPITAL_P_NAMED_GROUP)
103# if !defined(USE_NAMED_GROUP) || !defined(USE_SUBEXP_CALL)
104# error USE_NAMED_GROUP and USE_SUBEXP_CALL must be defined.
105# endif
106#endif
107
108#if defined(__GNUC__)
109# define ARG_UNUSED __attribute__ ((unused))
110#else
111# define ARG_UNUSED
112#endif
113
114#if !defined(RUBY) && defined(RUBY_EXPORT)
115# define RUBY
116#endif
117#ifdef RUBY
118# ifndef RUBY_DEFINES_H
119# include "ruby/ruby.h"
120# undef xmalloc
121# undef xrealloc
122# undef xcalloc
123# undef xfree
124# endif
125#else /* RUBY */
126# include "config.h"
127# if SIZEOF_LONG_LONG > 0
128# define LONG_LONG long long
129# endif
130#endif /* RUBY */
131
132#include <stdarg.h>
133
134/* */
135/* escape other system UChar definition */
136#ifdef ONIG_ESCAPE_UCHAR_COLLISION
137# undef ONIG_ESCAPE_UCHAR_COLLISION
138#endif
139
140#define USE_WORD_BEGIN_END /* "<": word-begin, ">": word-end */
141#ifdef RUBY
142# undef USE_CAPTURE_HISTORY
143#else
144# define USE_CAPTURE_HISTORY
145#endif
146#define USE_VARIABLE_META_CHARS
147#define USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE
148/* #define USE_COMBINATION_EXPLOSION_CHECK */ /* (X*)* */
149
150
151#ifndef xmalloc
152# define xmalloc malloc
153# define xrealloc realloc
154# define xcalloc calloc
155# define xfree free
156#endif
157
158#ifdef RUBY
159
160# define CHECK_INTERRUPT_IN_MATCH_AT do { \
161 msa->counter++; \
162 if (msa->counter >= 128) { \
163 msa->counter = 0; \
164 rb_reg_check_timeout(reg, &msa->end_time); \
165 rb_thread_check_ints(); \
166 } \
167} while(0)
168# define onig_st_init_table st_init_table
169# define onig_st_init_table_with_size st_init_table_with_size
170# define onig_st_init_numtable st_init_numtable
171# define onig_st_init_numtable_with_size st_init_numtable_with_size
172# define onig_st_init_strtable st_init_strtable
173# define onig_st_init_strtable_with_size st_init_strtable_with_size
174# define onig_st_delete st_delete
175# define onig_st_delete_safe st_delete_safe
176# define onig_st_insert st_insert
177# define onig_st_lookup st_lookup
178# define onig_st_foreach st_foreach
179# define onig_st_add_direct st_add_direct
180# define onig_st_free_table st_free_table
181# define onig_st_cleanup_safe st_cleanup_safe
182# define onig_st_copy st_copy
183# define onig_st_nothing_key_clone st_nothing_key_clone
184# define onig_st_nothing_key_free st_nothing_key_free
185# define onig_st_is_member st_is_member
186
187# define USE_UPPER_CASE_TABLE
188#else /* RUBY */
189
190# define CHECK_INTERRUPT_IN_MATCH_AT
191
192# define st_init_table onig_st_init_table
193# define st_init_table_with_size onig_st_init_table_with_size
194# define st_init_numtable onig_st_init_numtable
195# define st_init_numtable_with_size onig_st_init_numtable_with_size
196# define st_init_strtable onig_st_init_strtable
197# define st_init_strtable_with_size onig_st_init_strtable_with_size
198# define st_delete onig_st_delete
199# define st_delete_safe onig_st_delete_safe
200# define st_insert onig_st_insert
201# define st_lookup onig_st_lookup
202# define st_foreach onig_st_foreach
203# define st_add_direct onig_st_add_direct
204# define st_free_table onig_st_free_table
205# define st_cleanup_safe onig_st_cleanup_safe
206# define st_copy onig_st_copy
207# define st_nothing_key_clone onig_st_nothing_key_clone
208# define st_nothing_key_free onig_st_nothing_key_free
209/* */
210# define onig_st_is_member st_is_member
211
212#endif /* RUBY */
213
214#define STATE_CHECK_STRING_THRESHOLD_LEN 7
215#define STATE_CHECK_BUFF_MAX_SIZE 0x4000
216
217#define xmemset memset
218#define xmemcpy memcpy
219#define xmemmove memmove
220
221#if ((defined(RUBY_MSVCRT_VERSION) && RUBY_MSVCRT_VERSION >= 90) \
222 || (!defined(RUBY_MSVCRT_VERSION) && defined(_WIN32))) \
223 && !defined(__GNUC__)
224# define xalloca _alloca
225# define xvsnprintf(buf,size,fmt,args) _vsnprintf_s(buf,size,_TRUNCATE,fmt,args)
226# define xsnprintf sprintf_s
227# define xstrcat(dest,src,size) strcat_s(dest,size,src)
228#else
229# define xalloca alloca
230# define xvsnprintf vsnprintf
231# define xsnprintf snprintf
232# define xstrcat(dest,src,size) strcat(dest,src)
233#endif
234
235#if defined(ONIG_DEBUG_MEMLEAK) && defined(_MSC_VER)
236# define _CRTDBG_MAP_ALLOC
237# include <malloc.h>
238# include <crtdbg.h>
239#endif
240
241#include <stdlib.h>
242
243#if defined(HAVE_ALLOCA_H) && (defined(_AIX) || !defined(__GNUC__))
244# include <alloca.h>
245#endif
246
247#include <string.h>
248
249#include <ctype.h>
250#ifdef HAVE_SYS_TYPES_H
251# include <sys/types.h>
252#endif
253
254#ifdef HAVE_STDINT_H
255# include <stdint.h>
256#endif
257
258#ifdef HAVE_INTTYPES_H
259# include <inttypes.h>
260#endif
261
262#include <stddef.h>
263
264#ifdef _WIN32
265# include <malloc.h> /* for alloca() */
266#endif
267
268#ifdef ONIG_DEBUG
269# include <stdio.h>
270#endif
271
272#ifdef _WIN32
273# if defined(_MSC_VER) && (_MSC_VER < 1300)
274# ifndef _INTPTR_T_DEFINED
275# define _INTPTR_T_DEFINED
276typedef int intptr_t;
277# endif
278# ifndef _UINTPTR_T_DEFINED
279# define _UINTPTR_T_DEFINED
280typedef unsigned int uintptr_t;
281# endif
282# endif
283#endif /* _WIN32 */
284
285#ifndef PRIdPTR
286# ifdef _WIN64
287# define PRIdPTR "I64d"
288# define PRIuPTR "I64u"
289# define PRIxPTR "I64x"
290# else
291# define PRIdPTR "ld"
292# define PRIuPTR "lu"
293# define PRIxPTR "lx"
294# endif
295#endif
296
297#ifndef PRIdPTRDIFF
298# define PRIdPTRDIFF PRIdPTR
299#endif
300
301#include "regenc.h"
302
303RUBY_SYMBOL_EXPORT_BEGIN
304
305#ifdef MIN
306# undef MIN
307#endif
308#ifdef MAX
309# undef MAX
310#endif
311#define MIN(a,b) (((a)>(b))?(b):(a))
312#define MAX(a,b) (((a)<(b))?(b):(a))
313
314#define IS_NULL(p) (((void*)(p)) == (void*)0)
315#define IS_NOT_NULL(p) (((void*)(p)) != (void*)0)
316#define CHECK_NULL_RETURN(p) if (IS_NULL(p)) return NULL
317#define CHECK_NULL_RETURN_MEMERR(p) if (IS_NULL(p)) return ONIGERR_MEMORY
318#define NULL_UCHARP ((UChar* )0)
319
320#define ONIG_LAST_CODE_POINT (~((OnigCodePoint )0))
321
322#ifdef PLATFORM_UNALIGNED_WORD_ACCESS
323
324# define PLATFORM_GET_INC(val,p,type) do{\
325 val = *(type* )p;\
326 (p) += sizeof(type);\
327} while(0)
328
329#else
330
331# define PLATFORM_GET_INC(val,p,type) do{\
332 xmemcpy(&val, (p), sizeof(type));\
333 (p) += sizeof(type);\
334} while(0)
335
336/* sizeof(OnigCodePoint) */
337# define WORD_ALIGNMENT_SIZE SIZEOF_LONG
338
339# define GET_ALIGNMENT_PAD_SIZE(addr,pad_size) do {\
340 (pad_size) = WORD_ALIGNMENT_SIZE \
341 - ((uintptr_t )(addr) % WORD_ALIGNMENT_SIZE);\
342 if ((pad_size) == WORD_ALIGNMENT_SIZE) (pad_size) = 0;\
343} while (0)
344
345# define ALIGNMENT_RIGHT(addr) do {\
346 (addr) += (WORD_ALIGNMENT_SIZE - 1);\
347 (addr) -= ((uintptr_t )(addr) % WORD_ALIGNMENT_SIZE);\
348} while (0)
349
350#endif /* PLATFORM_UNALIGNED_WORD_ACCESS */
351
352/* stack pop level */
353#define STACK_POP_LEVEL_FREE 0
354#define STACK_POP_LEVEL_MEM_START 1
355#define STACK_POP_LEVEL_ALL 2
356
357/* optimize flags */
358#define ONIG_OPTIMIZE_NONE 0
359#define ONIG_OPTIMIZE_EXACT 1 /* Slow Search */
360#define ONIG_OPTIMIZE_EXACT_BM 2 /* Boyer Moore Search */
361#define ONIG_OPTIMIZE_EXACT_BM_NOT_REV 3 /* BM (applied to a multibyte string) */
362#define ONIG_OPTIMIZE_EXACT_IC 4 /* Slow Search (ignore case) */
363#define ONIG_OPTIMIZE_MAP 5 /* char map */
364#define ONIG_OPTIMIZE_EXACT_BM_IC 6 /* BM (ignore case) */
365#define ONIG_OPTIMIZE_EXACT_BM_NOT_REV_IC 7 /* BM (applied to a multibyte string) (ignore case) */
366
367/* bit status */
368typedef unsigned int BitStatusType;
369
370#define BIT_STATUS_BITS_NUM (sizeof(BitStatusType) * 8)
371#define BIT_STATUS_CLEAR(stats) (stats) = 0
372#define BIT_STATUS_ON_ALL(stats) (stats) = ~((BitStatusType )0)
373#define BIT_STATUS_AT(stats,n) \
374 ((n) < (int )BIT_STATUS_BITS_NUM ? ((stats) & ((BitStatusType )1 << n)) : ((stats) & 1))
375
376#define BIT_STATUS_ON_AT(stats,n) do {\
377 if ((n) < (int )BIT_STATUS_BITS_NUM)\
378 (stats) |= (1 << (n));\
379 else\
380 (stats) |= 1;\
381} while (0)
382
383#define BIT_STATUS_ON_AT_SIMPLE(stats,n) do {\
384 if ((n) < (int )BIT_STATUS_BITS_NUM)\
385 (stats) |= (1 << (n));\
386} while (0)
387
388
389#define INT_MAX_LIMIT ((1UL << (SIZEOF_INT * 8 - 1)) - 1)
390#define LONG_MAX_LIMIT ((1UL << (SIZEOF_LONG * 8 - 1)) - 1)
391
392#define DIGITVAL(code) ((code) - '0')
393#define ODIGITVAL(code) DIGITVAL(code)
394#define XDIGITVAL(enc,code) \
395 (ONIGENC_IS_CODE_DIGIT(enc,code) ? DIGITVAL(code) \
396 : (ONIGENC_IS_CODE_UPPER(enc,code) ? (code) - 'A' + 10 : (code) - 'a' + 10))
397
398#define IS_SINGLELINE(option) ((option) & ONIG_OPTION_SINGLELINE)
399#define IS_MULTILINE(option) ((option) & ONIG_OPTION_MULTILINE)
400#define IS_IGNORECASE(option) ((option) & ONIG_OPTION_IGNORECASE)
401#define IS_EXTEND(option) ((option) & ONIG_OPTION_EXTEND)
402#define IS_FIND_LONGEST(option) ((option) & ONIG_OPTION_FIND_LONGEST)
403#define IS_FIND_NOT_EMPTY(option) ((option) & ONIG_OPTION_FIND_NOT_EMPTY)
404#define IS_FIND_CONDITION(option) ((option) & \
405 (ONIG_OPTION_FIND_LONGEST | ONIG_OPTION_FIND_NOT_EMPTY))
406#define IS_NOTBOL(option) ((option) & ONIG_OPTION_NOTBOL)
407#define IS_NOTEOL(option) ((option) & ONIG_OPTION_NOTEOL)
408#define IS_NOTBOS(option) ((option) & ONIG_OPTION_NOTBOS)
409#define IS_NOTEOS(option) ((option) & ONIG_OPTION_NOTEOS)
410#define IS_ASCII_RANGE(option) ((option) & ONIG_OPTION_ASCII_RANGE)
411#define IS_POSIX_BRACKET_ALL_RANGE(option) ((option) & ONIG_OPTION_POSIX_BRACKET_ALL_RANGE)
412#define IS_WORD_BOUND_ALL_RANGE(option) ((option) & ONIG_OPTION_WORD_BOUND_ALL_RANGE)
413#define IS_NEWLINE_CRLF(option) ((option) & ONIG_OPTION_NEWLINE_CRLF)
414
415/* OP_SET_OPTION is required for these options.
416#define IS_DYNAMIC_OPTION(option) \
417 (((option) & (ONIG_OPTION_MULTILINE | ONIG_OPTION_IGNORECASE)) != 0)
418*/
419/* ignore-case and multibyte status are included in compiled code. */
420#define IS_DYNAMIC_OPTION(option) 0
421
422#define DISABLE_CASE_FOLD_MULTI_CHAR(case_fold_flag) \
423 ((case_fold_flag) & ~INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR)
424
425#define REPEAT_INFINITE -1
426#define IS_REPEAT_INFINITE(n) ((n) == REPEAT_INFINITE)
427
428/* bitset */
429#define BITS_PER_BYTE 8
430#define SINGLE_BYTE_SIZE (1 << BITS_PER_BYTE)
431#define BITS_IN_ROOM ((int )sizeof(Bits) * BITS_PER_BYTE)
432#define BITSET_SIZE (SINGLE_BYTE_SIZE / BITS_IN_ROOM)
433
434#ifdef PLATFORM_UNALIGNED_WORD_ACCESS
435typedef unsigned int Bits;
436#else
437typedef unsigned char Bits;
438#endif
439typedef Bits BitSet[BITSET_SIZE];
440typedef Bits* BitSetRef;
441
442#define SIZE_BITSET (int )sizeof(BitSet)
443
444#define BITSET_CLEAR(bs) do {\
445 int i;\
446 for (i = 0; i < BITSET_SIZE; i++) { (bs)[i] = 0; } \
447} while (0)
448
449#define BS_ROOM(bs,pos) (bs)[(int )(pos) / BITS_IN_ROOM]
450#define BS_BIT(pos) (1U << ((int )(pos) % BITS_IN_ROOM))
451
452#define BITSET_AT(bs, pos) (BS_ROOM(bs,pos) & BS_BIT(pos))
453#define BITSET_SET_BIT(bs, pos) BS_ROOM(bs,pos) |= BS_BIT(pos)
454#define BITSET_CLEAR_BIT(bs, pos) BS_ROOM(bs,pos) &= ~(BS_BIT(pos))
455#define BITSET_INVERT_BIT(bs, pos) BS_ROOM(bs,pos) ^= BS_BIT(pos)
456
457/* bytes buffer */
458typedef struct _BBuf {
459 UChar* p;
460 unsigned int used;
461 unsigned int alloc;
462} BBuf;
463
464#define BBUF_INIT(buf,size) onig_bbuf_init((BBuf* )(buf), (size))
465
466#define BBUF_SIZE_INC(buf,inc) do{\
467 UChar *tmp;\
468 (buf)->alloc += (inc);\
469 tmp = (UChar* )xrealloc((buf)->p, (buf)->alloc);\
470 if (IS_NULL(tmp)) return(ONIGERR_MEMORY);\
471 (buf)->p = tmp;\
472} while (0)
473
474#define BBUF_EXPAND(buf,low) do{\
475 UChar *tmp;\
476 do { (buf)->alloc *= 2; } while ((buf)->alloc < (unsigned int )low);\
477 tmp = (UChar* )xrealloc((buf)->p, (buf)->alloc);\
478 if (IS_NULL(tmp)) return(ONIGERR_MEMORY);\
479 (buf)->p = tmp;\
480} while (0)
481
482#define BBUF_ENSURE_SIZE(buf,size) do{\
483 unsigned int new_alloc = (buf)->alloc;\
484 while (new_alloc < (unsigned int )(size)) { new_alloc *= 2; }\
485 if ((buf)->alloc != new_alloc) {\
486 UChar *tmp;\
487 tmp = (UChar* )xrealloc((buf)->p, new_alloc);\
488 if (IS_NULL(tmp)) return(ONIGERR_MEMORY);\
489 (buf)->p = tmp;\
490 (buf)->alloc = new_alloc;\
491 }\
492} while (0)
493
494#define BBUF_WRITE(buf,pos,bytes,n) do{\
495 int used = (pos) + (int )(n);\
496 if ((buf)->alloc < (unsigned int )used) BBUF_EXPAND((buf),used);\
497 xmemcpy((buf)->p + (pos), (bytes), (n));\
498 if ((buf)->used < (unsigned int )used) (buf)->used = used;\
499} while (0)
500
501#define BBUF_WRITE1(buf,pos,byte) do{\
502 int used = (pos) + 1;\
503 if ((buf)->alloc < (unsigned int )used) BBUF_EXPAND((buf),used);\
504 (buf)->p[(pos)] = (UChar )(byte);\
505 if ((buf)->used < (unsigned int )used) (buf)->used = used;\
506} while (0)
507
508#define BBUF_ADD(buf,bytes,n) BBUF_WRITE((buf),(buf)->used,(bytes),(n))
509#define BBUF_ADD1(buf,byte) BBUF_WRITE1((buf),(buf)->used,(byte))
510#define BBUF_GET_ADD_ADDRESS(buf) ((buf)->p + (buf)->used)
511#define BBUF_GET_OFFSET_POS(buf) ((buf)->used)
512
513/* from < to */
514#define BBUF_MOVE_RIGHT(buf,from,to,n) do {\
515 if ((unsigned int )((to)+(n)) > (buf)->alloc) BBUF_EXPAND((buf),(to) + (n));\
516 xmemmove((buf)->p + (to), (buf)->p + (from), (n));\
517 if ((unsigned int )((to)+(n)) > (buf)->used) (buf)->used = (to) + (n);\
518} while (0)
519
520/* from > to */
521#define BBUF_MOVE_LEFT(buf,from,to,n) do {\
522 xmemmove((buf)->p + (to), (buf)->p + (from), (n));\
523} while (0)
524
525/* from > to */
526#define BBUF_MOVE_LEFT_REDUCE(buf,from,to) do {\
527 xmemmove((buf)->p + (to), (buf)->p + (from), (buf)->used - (from));\
528 (buf)->used -= (from - to);\
529} while (0)
530
531#define BBUF_INSERT(buf,pos,bytes,n) do {\
532 if (pos >= (buf)->used) {\
533 BBUF_WRITE(buf,pos,bytes,n);\
534 }\
535 else {\
536 BBUF_MOVE_RIGHT((buf),(pos),(pos) + (n),((buf)->used - (pos)));\
537 xmemcpy((buf)->p + (pos), (bytes), (n));\
538 }\
539} while (0)
540
541#define BBUF_GET_BYTE(buf, pos) (buf)->p[(pos)]
542
543
544#define ANCHOR_BEGIN_BUF (1<<0)
545#define ANCHOR_BEGIN_LINE (1<<1)
546#define ANCHOR_BEGIN_POSITION (1<<2)
547#define ANCHOR_END_BUF (1<<3)
548#define ANCHOR_SEMI_END_BUF (1<<4)
549#define ANCHOR_END_LINE (1<<5)
550
551#define ANCHOR_WORD_BOUND (1<<6)
552#define ANCHOR_NOT_WORD_BOUND (1<<7)
553#define ANCHOR_WORD_BEGIN (1<<8)
554#define ANCHOR_WORD_END (1<<9)
555#define ANCHOR_PREC_READ (1<<10)
556#define ANCHOR_PREC_READ_NOT (1<<11)
557#define ANCHOR_LOOK_BEHIND (1<<12)
558#define ANCHOR_LOOK_BEHIND_NOT (1<<13)
559
560#define ANCHOR_ANYCHAR_STAR (1<<14) /* ".*" optimize info */
561#define ANCHOR_ANYCHAR_STAR_ML (1<<15) /* ".*" optimize info (multi-line) */
562
563#define ANCHOR_KEEP (1<<16)
564
565/* operation code */
566enum OpCode {
567 OP_FINISH = 0, /* matching process terminator (no more alternative) */
568 OP_END = 1, /* pattern code terminator (success end) */
569
570 OP_EXACT1 = 2, /* single byte, N = 1 */
571 OP_EXACT2, /* single byte, N = 2 */
572 OP_EXACT3, /* single byte, N = 3 */
573 OP_EXACT4, /* single byte, N = 4 */
574 OP_EXACT5, /* single byte, N = 5 */
575 OP_EXACTN, /* single byte */
576 OP_EXACTMB2N1, /* mb-length = 2 N = 1 */
577 OP_EXACTMB2N2, /* mb-length = 2 N = 2 */
578 OP_EXACTMB2N3, /* mb-length = 2 N = 3 */
579 OP_EXACTMB2N, /* mb-length = 2 */
580 OP_EXACTMB3N, /* mb-length = 3 */
581 OP_EXACTMBN, /* other length */
582
583 OP_EXACT1_IC, /* single byte, N = 1, ignore case */
584 OP_EXACTN_IC, /* single byte, ignore case */
585
586 OP_CCLASS,
587 OP_CCLASS_MB,
588 OP_CCLASS_MIX,
589 OP_CCLASS_NOT,
590 OP_CCLASS_MB_NOT,
591 OP_CCLASS_MIX_NOT,
592
593 OP_ANYCHAR, /* "." */
594 OP_ANYCHAR_ML, /* "." multi-line */
595 OP_ANYCHAR_STAR, /* ".*" */
596 OP_ANYCHAR_ML_STAR, /* ".*" multi-line */
597 OP_ANYCHAR_STAR_PEEK_NEXT,
598 OP_ANYCHAR_ML_STAR_PEEK_NEXT,
599
600 OP_WORD,
601 OP_NOT_WORD,
602 OP_WORD_BOUND,
603 OP_NOT_WORD_BOUND,
604 OP_WORD_BEGIN,
605 OP_WORD_END,
606
607 OP_ASCII_WORD,
608 OP_NOT_ASCII_WORD,
609 OP_ASCII_WORD_BOUND,
610 OP_NOT_ASCII_WORD_BOUND,
611 OP_ASCII_WORD_BEGIN,
612 OP_ASCII_WORD_END,
613
614 OP_BEGIN_BUF,
615 OP_END_BUF,
616 OP_BEGIN_LINE,
617 OP_END_LINE,
618 OP_SEMI_END_BUF,
619 OP_BEGIN_POSITION,
620
621 OP_BACKREF1,
622 OP_BACKREF2,
623 OP_BACKREFN,
624 OP_BACKREFN_IC,
625 OP_BACKREF_MULTI,
626 OP_BACKREF_MULTI_IC,
627 OP_BACKREF_WITH_LEVEL, /* \k<xxx+n>, \k<xxx-n> */
628
629 OP_MEMORY_START,
630 OP_MEMORY_START_PUSH, /* push back-tracker to stack */
631 OP_MEMORY_END_PUSH, /* push back-tracker to stack */
632 OP_MEMORY_END_PUSH_REC, /* push back-tracker to stack */
633 OP_MEMORY_END,
634 OP_MEMORY_END_REC, /* push marker to stack */
635
636 OP_KEEP,
637
638 OP_FAIL, /* pop stack and move */
639 OP_JUMP,
640 OP_PUSH,
641 OP_POP,
642 OP_PUSH_OR_JUMP_EXACT1, /* if match exact then push, else jump. */
643 OP_PUSH_IF_PEEK_NEXT, /* if match exact then push, else none. */
644 OP_REPEAT, /* {n,m} */
645 OP_REPEAT_NG, /* {n,m}? (non greedy) */
646 OP_REPEAT_INC,
647 OP_REPEAT_INC_NG, /* non greedy */
648 OP_REPEAT_INC_SG, /* search and get in stack */
649 OP_REPEAT_INC_NG_SG, /* search and get in stack (non greedy) */
650 OP_NULL_CHECK_START, /* null loop checker start */
651 OP_NULL_CHECK_END, /* null loop checker end */
652 OP_NULL_CHECK_END_MEMST, /* null loop checker end (with capture status) */
653 OP_NULL_CHECK_END_MEMST_PUSH, /* with capture status and push check-end */
654
655 OP_PUSH_POS, /* (?=...) start */
656 OP_POP_POS, /* (?=...) end */
657 OP_PUSH_POS_NOT, /* (?!...) start */
658 OP_FAIL_POS, /* (?!...) end */
659 OP_PUSH_STOP_BT, /* (?>...) start */
660 OP_POP_STOP_BT, /* (?>...) end */
661 OP_LOOK_BEHIND, /* (?<=...) start (no needs end opcode) */
662 OP_PUSH_LOOK_BEHIND_NOT, /* (?<!...) start */
663 OP_FAIL_LOOK_BEHIND_NOT, /* (?<!...) end */
664 OP_PUSH_ABSENT_POS, /* (?~...) start */
665 OP_ABSENT, /* (?~...) start of inner loop */
666 OP_ABSENT_END, /* (?~...) end */
667
668 OP_CALL, /* \g<name> */
669 OP_RETURN,
670
671 OP_CONDITION,
672
673 OP_STATE_CHECK_PUSH, /* combination explosion check and push */
674 OP_STATE_CHECK_PUSH_OR_JUMP, /* check ok -> push, else jump */
675 OP_STATE_CHECK, /* check only */
676 OP_STATE_CHECK_ANYCHAR_STAR,
677 OP_STATE_CHECK_ANYCHAR_ML_STAR,
678
679 /* no need: IS_DYNAMIC_OPTION() == 0 */
680 OP_SET_OPTION_PUSH, /* set option and push recover option */
681 OP_SET_OPTION /* set option */
682};
683
684typedef int RelAddrType;
685typedef int AbsAddrType;
686typedef int LengthType;
687typedef int RepeatNumType;
688typedef short int MemNumType;
689typedef short int StateCheckNumType;
690typedef void* PointerType;
691
692#define SIZE_OPCODE 1
693#define SIZE_RELADDR (int )sizeof(RelAddrType)
694#define SIZE_ABSADDR (int )sizeof(AbsAddrType)
695#define SIZE_LENGTH (int )sizeof(LengthType)
696#define SIZE_MEMNUM (int )sizeof(MemNumType)
697#define SIZE_STATE_CHECK_NUM (int )sizeof(StateCheckNumType)
698#define SIZE_REPEATNUM (int )sizeof(RepeatNumType)
699#define SIZE_OPTION (int )sizeof(OnigOptionType)
700#define SIZE_CODE_POINT (int )sizeof(OnigCodePoint)
701#define SIZE_POINTER (int )sizeof(PointerType)
702
703
704#define GET_RELADDR_INC(addr,p) PLATFORM_GET_INC(addr, p, RelAddrType)
705#define GET_ABSADDR_INC(addr,p) PLATFORM_GET_INC(addr, p, AbsAddrType)
706#define GET_LENGTH_INC(len,p) PLATFORM_GET_INC(len, p, LengthType)
707#define GET_MEMNUM_INC(num,p) PLATFORM_GET_INC(num, p, MemNumType)
708#define GET_REPEATNUM_INC(num,p) PLATFORM_GET_INC(num, p, RepeatNumType)
709#define GET_OPTION_INC(option,p) PLATFORM_GET_INC(option, p, OnigOptionType)
710#define GET_POINTER_INC(ptr,p) PLATFORM_GET_INC(ptr, p, PointerType)
711#define GET_STATE_CHECK_NUM_INC(num,p) PLATFORM_GET_INC(num, p, StateCheckNumType)
712
713/* code point's address must be aligned address. */
714#define GET_CODE_POINT(code,p) code = *((OnigCodePoint* )(p))
715#define GET_BYTE_INC(byte,p) do{\
716 byte = *(p);\
717 (p)++;\
718} while(0)
719
720
721/* op-code + arg size */
722#define SIZE_OP_ANYCHAR_STAR SIZE_OPCODE
723#define SIZE_OP_ANYCHAR_STAR_PEEK_NEXT (SIZE_OPCODE + 1)
724#define SIZE_OP_JUMP (SIZE_OPCODE + SIZE_RELADDR)
725#define SIZE_OP_PUSH (SIZE_OPCODE + SIZE_RELADDR)
726#define SIZE_OP_POP SIZE_OPCODE
727#define SIZE_OP_PUSH_OR_JUMP_EXACT1 (SIZE_OPCODE + SIZE_RELADDR + 1)
728#define SIZE_OP_PUSH_IF_PEEK_NEXT (SIZE_OPCODE + SIZE_RELADDR + 1)
729#define SIZE_OP_REPEAT_INC (SIZE_OPCODE + SIZE_MEMNUM)
730#define SIZE_OP_REPEAT_INC_NG (SIZE_OPCODE + SIZE_MEMNUM)
731#define SIZE_OP_PUSH_POS SIZE_OPCODE
732#define SIZE_OP_PUSH_POS_NOT (SIZE_OPCODE + SIZE_RELADDR)
733#define SIZE_OP_POP_POS SIZE_OPCODE
734#define SIZE_OP_FAIL_POS SIZE_OPCODE
735#define SIZE_OP_SET_OPTION (SIZE_OPCODE + SIZE_OPTION)
736#define SIZE_OP_SET_OPTION_PUSH (SIZE_OPCODE + SIZE_OPTION)
737#define SIZE_OP_FAIL SIZE_OPCODE
738#define SIZE_OP_MEMORY_START (SIZE_OPCODE + SIZE_MEMNUM)
739#define SIZE_OP_MEMORY_START_PUSH (SIZE_OPCODE + SIZE_MEMNUM)
740#define SIZE_OP_MEMORY_END_PUSH (SIZE_OPCODE + SIZE_MEMNUM)
741#define SIZE_OP_MEMORY_END_PUSH_REC (SIZE_OPCODE + SIZE_MEMNUM)
742#define SIZE_OP_MEMORY_END (SIZE_OPCODE + SIZE_MEMNUM)
743#define SIZE_OP_MEMORY_END_REC (SIZE_OPCODE + SIZE_MEMNUM)
744#define SIZE_OP_PUSH_STOP_BT SIZE_OPCODE
745#define SIZE_OP_POP_STOP_BT SIZE_OPCODE
746#define SIZE_OP_NULL_CHECK_START (SIZE_OPCODE + SIZE_MEMNUM)
747#define SIZE_OP_NULL_CHECK_END (SIZE_OPCODE + SIZE_MEMNUM)
748#define SIZE_OP_LOOK_BEHIND (SIZE_OPCODE + SIZE_LENGTH)
749#define SIZE_OP_PUSH_LOOK_BEHIND_NOT (SIZE_OPCODE + SIZE_RELADDR + SIZE_LENGTH)
750#define SIZE_OP_FAIL_LOOK_BEHIND_NOT SIZE_OPCODE
751#define SIZE_OP_CALL (SIZE_OPCODE + SIZE_ABSADDR)
752#define SIZE_OP_RETURN SIZE_OPCODE
753#define SIZE_OP_CONDITION (SIZE_OPCODE + SIZE_MEMNUM + SIZE_RELADDR)
754#define SIZE_OP_PUSH_ABSENT_POS SIZE_OPCODE
755#define SIZE_OP_ABSENT (SIZE_OPCODE + SIZE_RELADDR)
756#define SIZE_OP_ABSENT_END SIZE_OPCODE
757
758#ifdef USE_COMBINATION_EXPLOSION_CHECK
759# define SIZE_OP_STATE_CHECK (SIZE_OPCODE + SIZE_STATE_CHECK_NUM)
760# define SIZE_OP_STATE_CHECK_PUSH (SIZE_OPCODE + SIZE_STATE_CHECK_NUM + SIZE_RELADDR)
761# define SIZE_OP_STATE_CHECK_PUSH_OR_JUMP (SIZE_OPCODE + SIZE_STATE_CHECK_NUM + SIZE_RELADDR)
762# define SIZE_OP_STATE_CHECK_ANYCHAR_STAR (SIZE_OPCODE + SIZE_STATE_CHECK_NUM)
763#endif
764
765#define MC_ESC(syn) (syn)->meta_char_table.esc
766#define MC_ANYCHAR(syn) (syn)->meta_char_table.anychar
767#define MC_ANYTIME(syn) (syn)->meta_char_table.anytime
768#define MC_ZERO_OR_ONE_TIME(syn) (syn)->meta_char_table.zero_or_one_time
769#define MC_ONE_OR_MORE_TIME(syn) (syn)->meta_char_table.one_or_more_time
770#define MC_ANYCHAR_ANYTIME(syn) (syn)->meta_char_table.anychar_anytime
771
772#define IS_MC_ESC_CODE(code, syn) \
773 ((code) == MC_ESC(syn) && \
774 !IS_SYNTAX_OP2((syn), ONIG_SYN_OP2_INEFFECTIVE_ESCAPE))
775
776
777#define SYN_POSIX_COMMON_OP \
778 ( ONIG_SYN_OP_DOT_ANYCHAR | ONIG_SYN_OP_POSIX_BRACKET | \
779 ONIG_SYN_OP_DECIMAL_BACKREF | \
780 ONIG_SYN_OP_BRACKET_CC | ONIG_SYN_OP_ASTERISK_ZERO_INF | \
781 ONIG_SYN_OP_LINE_ANCHOR | \
782 ONIG_SYN_OP_ESC_CONTROL_CHARS )
783
784#define SYN_GNU_REGEX_OP \
785 ( ONIG_SYN_OP_DOT_ANYCHAR | ONIG_SYN_OP_BRACKET_CC | \
786 ONIG_SYN_OP_POSIX_BRACKET | ONIG_SYN_OP_DECIMAL_BACKREF | \
787 ONIG_SYN_OP_BRACE_INTERVAL | ONIG_SYN_OP_LPAREN_SUBEXP | \
788 ONIG_SYN_OP_VBAR_ALT | \
789 ONIG_SYN_OP_ASTERISK_ZERO_INF | ONIG_SYN_OP_PLUS_ONE_INF | \
790 ONIG_SYN_OP_QMARK_ZERO_ONE | \
791 ONIG_SYN_OP_ESC_AZ_BUF_ANCHOR | ONIG_SYN_OP_ESC_CAPITAL_G_BEGIN_ANCHOR | \
792 ONIG_SYN_OP_ESC_W_WORD | \
793 ONIG_SYN_OP_ESC_B_WORD_BOUND | ONIG_SYN_OP_ESC_LTGT_WORD_BEGIN_END | \
794 ONIG_SYN_OP_ESC_S_WHITE_SPACE | ONIG_SYN_OP_ESC_D_DIGIT | \
795 ONIG_SYN_OP_LINE_ANCHOR )
796
797#define SYN_GNU_REGEX_BV \
798 ( ONIG_SYN_CONTEXT_INDEP_ANCHORS | ONIG_SYN_CONTEXT_INDEP_REPEAT_OPS | \
799 ONIG_SYN_CONTEXT_INVALID_REPEAT_OPS | ONIG_SYN_ALLOW_INVALID_INTERVAL | \
800 ONIG_SYN_BACKSLASH_ESCAPE_IN_CC | ONIG_SYN_ALLOW_DOUBLE_RANGE_OP_IN_CC )
801
802
803#define NCCLASS_FLAGS(cc) ((cc)->flags)
804#define NCCLASS_FLAG_SET(cc,flag) (NCCLASS_FLAGS(cc) |= (flag))
805#define NCCLASS_FLAG_CLEAR(cc,flag) (NCCLASS_FLAGS(cc) &= ~(flag))
806#define IS_NCCLASS_FLAG_ON(cc,flag) ((NCCLASS_FLAGS(cc) & (flag)) != 0)
807
808/* cclass node */
809#define FLAG_NCCLASS_NOT (1<<0)
810
811#define NCCLASS_SET_NOT(nd) NCCLASS_FLAG_SET(nd, FLAG_NCCLASS_NOT)
812#define NCCLASS_CLEAR_NOT(nd) NCCLASS_FLAG_CLEAR(nd, FLAG_NCCLASS_NOT)
813#define IS_NCCLASS_NOT(nd) IS_NCCLASS_FLAG_ON(nd, FLAG_NCCLASS_NOT)
814
815typedef struct {
816 int type;
817 /* struct _Node* next; */
818 /* unsigned int flags; */
819} NodeBase;
820
821typedef struct {
822 NodeBase base;
823 unsigned int flags;
824 BitSet bs;
825 BBuf* mbuf; /* multi-byte info or NULL */
826} CClassNode;
827
828typedef intptr_t OnigStackIndex;
829
830typedef struct _OnigStackType {
831 unsigned int type;
832 OnigStackIndex null_check;
833 union {
834 struct {
835 UChar *pcode; /* byte code position */
836 UChar *pstr; /* string position */
837 UChar *pstr_prev; /* previous char position of pstr */
838#ifdef USE_COMBINATION_EXPLOSION_CHECK
839 unsigned int state_check;
840#endif
841 UChar *pkeep; /* keep pattern position */
842 } state;
843 struct {
844 int count; /* for OP_REPEAT_INC, OP_REPEAT_INC_NG */
845 UChar *pcode; /* byte code position (head of repeated target) */
846 int num; /* repeat id */
847 } repeat;
848 struct {
849 OnigStackIndex si; /* index of stack */
850 } repeat_inc;
851 struct {
852 int num; /* memory num */
853 UChar *pstr; /* start/end position */
854 /* Following information is set, if this stack type is MEM-START */
855 OnigStackIndex start; /* prev. info (for backtrack "(...)*" ) */
856 OnigStackIndex end; /* prev. info (for backtrack "(...)*" ) */
857 } mem;
858 struct {
859 int num; /* null check id */
860 UChar *pstr; /* start position */
861 } null_check;
862#ifdef USE_SUBEXP_CALL
863 struct {
864 UChar *ret_addr; /* byte code position */
865 int num; /* null check id */
866 UChar *pstr; /* string position */
867 } call_frame;
868#endif
869 struct {
870 UChar *abs_pstr; /* absent start position */
871 const UChar *end_pstr; /* end position */
872 } absent_pos;
873 } u;
875
876#ifdef USE_CACHE_MATCH_OPT
877typedef struct {
878 UChar *addr;
879 long num;
880 int outer_repeat;
882#endif
883
884typedef struct {
885 void* stack_p;
886 size_t stack_n;
887 OnigOptionType options;
888 OnigRegion* region;
889 const UChar* start; /* search start position */
890 const UChar* gpos; /* global position (for \G: BEGIN_POSITION) */
891#ifdef USE_FIND_LONGEST_SEARCH_ALL_OF_RANGE
892 OnigPosition best_len; /* for ONIG_OPTION_FIND_LONGEST */
893 UChar* best_s;
894#endif
895#ifdef USE_COMBINATION_EXPLOSION_CHECK
896 void* state_check_buff;
897 int state_check_buff_size;
898#endif
899 int counter;
900 /* rb_hrtime_t from hrtime.h */
901#ifdef MY_RUBY_BUILD_MAY_TIME_TRAVEL
902 int128_t end_time;
903#else
904 uint64_t end_time;
905#endif
906#ifdef USE_CACHE_MATCH_OPT
907 long num_fail;
908 int enable_cache_match_opt;
909 long num_cache_opcode;
910 long num_cache_table;
911 OnigCacheIndex* cache_index_table;
912 uint8_t* match_cache;
913#endif
915
916
917#define IS_CODE_SB_WORD(enc,code) \
918 (ONIGENC_IS_CODE_ASCII(code) && ONIGENC_IS_CODE_WORD(enc,code))
919
920typedef struct OnigEndCallListItem {
921 struct OnigEndCallListItem* next;
922 void (*func)(void);
924
925extern void onig_add_end_call(void (*func)(void));
926
927
928#ifdef ONIG_DEBUG
929
930typedef struct {
931 short int opcode;
932 const char* name;
933 short int arg_type;
934} OnigOpInfoType;
935
936extern OnigOpInfoType OnigOpInfo[];
937
938
939extern void onig_print_compiled_byte_code(FILE* f, UChar* bp, UChar* bpend, UChar** nextp, OnigEncoding enc);
940
941# ifdef ONIG_DEBUG_STATISTICS
942extern void onig_statistics_init(void);
943extern void onig_print_statistics(FILE* f);
944# endif
945#endif
946
947#ifndef PRINTF_ARGS
948#define PRINTF_ARGS(func, fmt, vargs) func
949#endif
950
951extern UChar* onig_error_code_to_format(OnigPosition code);
952PRINTF_ARGS(extern void onig_vsnprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc, UChar* pat, UChar* pat_end, const char *fmt, va_list args), 6, 0);
953PRINTF_ARGS(extern void onig_snprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc, UChar* pat, UChar* pat_end, const char *fmt, ...), 6, 7);
954extern int onig_bbuf_init(BBuf* buf, OnigDistance size);
955extern int onig_compile(regex_t* reg, const UChar* pattern, const UChar* pattern_end, OnigErrorInfo* einfo);
956#ifdef RUBY
957extern int onig_compile_ruby(regex_t* reg, const UChar* pattern, const UChar* pattern_end, OnigErrorInfo* einfo, const char *sourcefile, int sourceline);
958#endif
959extern void onig_transfer(regex_t* to, regex_t* from);
960extern int onig_is_code_in_cc(OnigEncoding enc, OnigCodePoint code, CClassNode* cc);
961extern int onig_is_code_in_cc_len(int enclen, OnigCodePoint code, CClassNode* cc);
962
963/* strend hash */
964typedef void hash_table_type;
965#ifdef RUBY
966# include "ruby/st.h"
967#else
968# include "st.h"
969#endif
970typedef st_data_t hash_data_type;
971
972extern hash_table_type* onig_st_init_strend_table_with_size(st_index_t size);
973extern int onig_st_lookup_strend(hash_table_type* table, const UChar* str_key, const UChar* end_key, hash_data_type *value);
974extern int onig_st_insert_strend(hash_table_type* table, const UChar* str_key, const UChar* end_key, hash_data_type value);
975
976#ifdef RUBY
977extern size_t onig_memsize(const regex_t *reg);
978extern size_t onig_region_memsize(const struct re_registers *regs);
979void rb_reg_check_timeout(regex_t *reg, void *end_time);
980#endif
981
982RUBY_SYMBOL_EXPORT_END
983
984#endif /* ONIGMO_REGINT_H */
Defines old _.
Definition: regint.h:458