Annotation of embedaddon/php/ext/mbstring/oniguruma/regposix.c, revision 1.1.1.1
1.1 misho 1: /**********************************************************************
2: regposix.c - Oniguruma (regular expression library)
3: **********************************************************************/
4: /*-
5: * Copyright (c) 2002-2006 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27: * SUCH DAMAGE.
28: */
29:
30: #define regex_t onig_regex_t
31: #include "regint.h"
32: #undef regex_t
33: #include "onigposix.h"
34:
35: #define ONIG_C(reg) ((onig_regex_t* )((reg)->onig))
36: #define PONIG_C(reg) ((onig_regex_t** )(&(reg)->onig))
37:
38: /* #define ENC_STRING_LEN(enc,s,len) len = strlen(s) */
39: #define ENC_STRING_LEN(enc,s,len) do { \
40: if (ONIGENC_MBC_MINLEN(enc) == 1) { \
41: UChar* tmps = (UChar* )(s); \
42: while (*tmps != 0) tmps++; \
43: len = tmps - (UChar* )(s); \
44: } \
45: else { \
46: len = onigenc_str_bytelen_null(enc, (UChar* )s); \
47: } \
48: } while(0)
49:
50: typedef struct {
51: int onig_err;
52: int posix_err;
53: } O2PERR;
54:
55: static int
56: onig2posix_error_code(int code)
57: {
58: static const O2PERR o2p[] = {
59: { ONIG_MISMATCH, REG_NOMATCH },
60: { ONIG_NO_SUPPORT_CONFIG, REG_EONIG_INTERNAL },
61: { ONIGERR_MEMORY, REG_ESPACE },
62: { ONIGERR_MATCH_STACK_LIMIT_OVER, REG_EONIG_INTERNAL },
63: { ONIGERR_TYPE_BUG, REG_EONIG_INTERNAL },
64: { ONIGERR_PARSER_BUG, REG_EONIG_INTERNAL },
65: { ONIGERR_STACK_BUG, REG_EONIG_INTERNAL },
66: { ONIGERR_UNDEFINED_BYTECODE, REG_EONIG_INTERNAL },
67: { ONIGERR_UNEXPECTED_BYTECODE, REG_EONIG_INTERNAL },
68: { ONIGERR_DEFAULT_ENCODING_IS_NOT_SETTED, REG_EONIG_BADARG },
69: { ONIGERR_SPECIFIED_ENCODING_CANT_CONVERT_TO_WIDE_CHAR, REG_EONIG_BADARG },
70: { ONIGERR_INVALID_ARGUMENT, REG_EONIG_BADARG },
71: { ONIGERR_END_PATTERN_AT_LEFT_BRACE, REG_EBRACE },
72: { ONIGERR_END_PATTERN_AT_LEFT_BRACKET, REG_EBRACK },
73: { ONIGERR_EMPTY_CHAR_CLASS, REG_ECTYPE },
74: { ONIGERR_PREMATURE_END_OF_CHAR_CLASS, REG_ECTYPE },
75: { ONIGERR_END_PATTERN_AT_ESCAPE, REG_EESCAPE },
76: { ONIGERR_END_PATTERN_AT_META, REG_EESCAPE },
77: { ONIGERR_END_PATTERN_AT_CONTROL, REG_EESCAPE },
78: { ONIGERR_META_CODE_SYNTAX, REG_BADPAT },
79: { ONIGERR_CONTROL_CODE_SYNTAX, REG_BADPAT },
80: { ONIGERR_CHAR_CLASS_VALUE_AT_END_OF_RANGE, REG_ECTYPE },
81: { ONIGERR_CHAR_CLASS_VALUE_AT_START_OF_RANGE, REG_ECTYPE },
82: { ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS, REG_ECTYPE },
83: { ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED, REG_BADRPT },
84: { ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID, REG_BADRPT },
85: { ONIGERR_NESTED_REPEAT_OPERATOR, REG_BADRPT },
86: { ONIGERR_UNMATCHED_CLOSE_PARENTHESIS, REG_EPAREN },
87: { ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS, REG_EPAREN },
88: { ONIGERR_END_PATTERN_IN_GROUP, REG_BADPAT },
89: { ONIGERR_UNDEFINED_GROUP_OPTION, REG_BADPAT },
90: { ONIGERR_INVALID_POSIX_BRACKET_TYPE, REG_BADPAT },
91: { ONIGERR_INVALID_LOOK_BEHIND_PATTERN, REG_BADPAT },
92: { ONIGERR_INVALID_REPEAT_RANGE_PATTERN, REG_BADPAT },
93: { ONIGERR_TOO_BIG_NUMBER, REG_BADPAT },
94: { ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE, REG_BADBR },
95: { ONIGERR_UPPER_SMALLER_THAN_LOWER_IN_REPEAT_RANGE, REG_BADBR },
96: { ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS, REG_ECTYPE },
97: { ONIGERR_MISMATCH_CODE_LENGTH_IN_CLASS_RANGE, REG_ECTYPE },
98: { ONIGERR_TOO_MANY_MULTI_BYTE_RANGES, REG_ECTYPE },
99: { ONIGERR_TOO_SHORT_MULTI_BYTE_STRING, REG_BADPAT },
100: { ONIGERR_TOO_BIG_BACKREF_NUMBER, REG_ESUBREG },
101: { ONIGERR_INVALID_BACKREF, REG_ESUBREG },
102: { ONIGERR_NUMBERED_BACKREF_OR_CALL_NOT_ALLOWED, REG_BADPAT },
103: { ONIGERR_TOO_BIG_WIDE_CHAR_VALUE, REG_EONIG_BADWC },
104: { ONIGERR_TOO_LONG_WIDE_CHAR_VALUE, REG_EONIG_BADWC },
105: { ONIGERR_INVALID_WIDE_CHAR_VALUE, REG_EONIG_BADWC },
106: { ONIGERR_EMPTY_GROUP_NAME, REG_BADPAT },
107: { ONIGERR_INVALID_GROUP_NAME, REG_BADPAT },
108: { ONIGERR_INVALID_CHAR_IN_GROUP_NAME, REG_BADPAT },
109: { ONIGERR_UNDEFINED_NAME_REFERENCE, REG_BADPAT },
110: { ONIGERR_UNDEFINED_GROUP_REFERENCE, REG_BADPAT },
111: { ONIGERR_MULTIPLEX_DEFINED_NAME, REG_BADPAT },
112: { ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL, REG_BADPAT },
113: { ONIGERR_NEVER_ENDING_RECURSION, REG_BADPAT },
114: { ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY, REG_BADPAT },
115: { ONIGERR_INVALID_CHAR_PROPERTY_NAME, REG_BADPAT },
116: { ONIGERR_NOT_SUPPORTED_ENCODING_COMBINATION, REG_EONIG_BADARG },
117: { ONIGERR_OVER_THREAD_PASS_LIMIT_COUNT, REG_EONIG_THREAD }
118:
119: };
120:
121: int i;
122:
123: if (code >= 0) return 0;
124:
125: for (i = 0; i < sizeof(o2p) / sizeof(o2p[0]); i++) {
126: if (code == o2p[i].onig_err)
127: return o2p[i].posix_err;
128: }
129:
130: return REG_EONIG_INTERNAL; /* but, unknown error code */
131: }
132:
133: extern int
134: regcomp(regex_t* reg, const char* pattern, int posix_options)
135: {
136: int r, len;
137: OnigSyntaxType* syntax = OnigDefaultSyntax;
138: OnigOptionType options;
139:
140: if ((posix_options & REG_EXTENDED) == 0)
141: syntax = ONIG_SYNTAX_POSIX_BASIC;
142:
143: options = syntax->options;
144: if ((posix_options & REG_ICASE) != 0)
145: ONIG_OPTION_ON(options, ONIG_OPTION_IGNORECASE);
146: if ((posix_options & REG_NEWLINE) != 0) {
147: ONIG_OPTION_ON( options, ONIG_OPTION_NEGATE_SINGLELINE);
148: ONIG_OPTION_OFF(options, ONIG_OPTION_SINGLELINE);
149: }
150:
151: reg->comp_options = posix_options;
152:
153: ENC_STRING_LEN(OnigEncDefaultCharEncoding, pattern, len);
154: r = onig_new(PONIG_C(reg), (UChar* )pattern, (UChar* )(pattern + len),
155: options, OnigEncDefaultCharEncoding, syntax,
156: (OnigErrorInfo* )NULL);
157: if (r != ONIG_NORMAL) {
158: return onig2posix_error_code(r);
159: }
160:
161: reg->re_nsub = ONIG_C(reg)->num_mem;
162: return 0;
163: }
164:
165: extern int
166: regexec(regex_t* reg, const char* str, size_t nmatch,
167: regmatch_t pmatch[], int posix_options)
168: {
169: int r, i, len;
170: UChar* end;
171: regmatch_t* pm;
172: OnigOptionType options;
173:
174: options = ONIG_OPTION_POSIX_REGION;
175: if ((posix_options & REG_NOTBOL) != 0) options |= ONIG_OPTION_NOTBOL;
176: if ((posix_options & REG_NOTEOL) != 0) options |= ONIG_OPTION_NOTEOL;
177:
178: if (nmatch == 0 || (reg->comp_options & REG_NOSUB) != 0) {
179: pm = (regmatch_t* )NULL;
180: nmatch = 0;
181: }
182: else if ((int )nmatch < ONIG_C(reg)->num_mem + 1) {
183: pm = (regmatch_t* )xmalloc(sizeof(regmatch_t)
184: * (ONIG_C(reg)->num_mem + 1));
185: if (pm == NULL)
186: return REG_ESPACE;
187: }
188: else {
189: pm = pmatch;
190: }
191:
192: ENC_STRING_LEN(ONIG_C(reg)->enc, str, len);
193: end = (UChar* )(str + len);
194: r = onig_search(ONIG_C(reg), (UChar* )str, end, (UChar* )str, end,
195: (OnigRegion* )pm, options);
196:
197: if (r >= 0) {
198: r = 0; /* Match */
199: if (pm != pmatch && pm != NULL) {
200: xmemcpy(pmatch, pm, sizeof(regmatch_t) * nmatch);
201: }
202: }
203: else if (r == ONIG_MISMATCH) {
204: r = REG_NOMATCH;
205: for (i = 0; i < (int )nmatch; i++)
206: pmatch[i].rm_so = pmatch[i].rm_eo = ONIG_REGION_NOTPOS;
207: }
208: else {
209: r = onig2posix_error_code(r);
210: }
211:
212: if (pm != pmatch && pm != NULL)
213: xfree(pm);
214:
215: #if 0
216: if (reg->re_nsub > nmatch - 1)
217: reg->re_nsub = (nmatch <= 1 ? 0 : nmatch - 1);
218: #endif
219:
220: return r;
221: }
222:
223: extern void
224: regfree(regex_t* reg)
225: {
226: onig_free(ONIG_C(reg));
227: }
228:
229:
230: extern void
231: reg_set_encoding(int mb_code)
232: {
233: OnigEncoding enc;
234:
235: switch (mb_code) {
236: case REG_POSIX_ENCODING_ASCII:
237: enc = ONIG_ENCODING_ASCII;
238: break;
239: case REG_POSIX_ENCODING_EUC_JP:
240: enc = ONIG_ENCODING_EUC_JP;
241: break;
242: case REG_POSIX_ENCODING_SJIS:
243: enc = ONIG_ENCODING_SJIS;
244: break;
245: case REG_POSIX_ENCODING_UTF8:
246: enc = ONIG_ENCODING_UTF8;
247: break;
248: case REG_POSIX_ENCODING_UTF16_BE:
249: enc = ONIG_ENCODING_UTF16_BE;
250: break;
251: case REG_POSIX_ENCODING_UTF16_LE:
252: enc = ONIG_ENCODING_UTF16_LE;
253: break;
254:
255: default:
256: return ;
257: break;
258: }
259:
260: onigenc_set_default_encoding(enc);
261: }
262:
263: extern int
264: reg_name_to_group_numbers(regex_t* reg,
265: const unsigned char* name, const unsigned char* name_end, int** nums)
266: {
267: return onig_name_to_group_numbers(ONIG_C(reg), name, name_end, nums);
268: }
269:
270: typedef struct {
271: int (*func)(const unsigned char*, const unsigned char*,int,int*,regex_t*,void*);
272: regex_t* reg;
273: void* arg;
274: } i_wrap;
275:
276: static int i_wrapper(const unsigned char* name, const unsigned char* name_end,
277: int ng, int* gs,
278: onig_regex_t* reg, void* arg)
279: {
280: i_wrap* warg = (i_wrap* )arg;
281:
282: return (*warg->func)(name, name_end, ng, gs, warg->reg, warg->arg);
283: }
284:
285: extern int
286: reg_foreach_name(regex_t* reg,
287: int (*func)(const unsigned char*, const unsigned char*,int,int*,regex_t*,void*),
288: void* arg)
289: {
290: i_wrap warg;
291:
292: warg.func = func;
293: warg.reg = reg;
294: warg.arg = arg;
295:
296: return onig_foreach_name(ONIG_C(reg), i_wrapper, &warg);
297: }
298:
299: extern int
300: reg_number_of_names(regex_t* reg)
301: {
302: return onig_number_of_names(ONIG_C(reg));
303: }
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