source: EcnlProtoTool/trunk/onigmo-5.15.0/src/regerror.c@ 279

Last change on this file since 279 was 279, checked in by coas-nagasima, 7 years ago

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1/**********************************************************************
2 regerror.c - Onigmo (Oniguruma-mod) (regular expression library)
3**********************************************************************/
4/*-
5 * Copyright (c) 2002-2007 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
6 * Copyright (c) 2011-2014 K.Takata <kentkt AT csc DOT jp>
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include "regint.h"
32#include <stdio.h> /* for vsnprintf() */
33
34#ifdef HAVE_STDARG_PROTOTYPES
35#include <stdarg.h>
36#define va_init_list(a,b) va_start(a,b)
37#else
38#include <varargs.h>
39#define va_init_list(a,b) va_start(a)
40#endif
41
42extern UChar*
43onig_error_code_to_format(OnigPosition code)
44{
45 const char *p;
46
47 if (code >= 0) return (UChar* )0;
48
49 switch (code) {
50 case ONIG_MISMATCH:
51 p = "mismatch"; break;
52 case ONIG_NO_SUPPORT_CONFIG:
53 p = "no support in this configuration"; break;
54 case ONIGERR_MEMORY:
55 p = "failed to allocate memory"; break;
56 case ONIGERR_TYPE_BUG:
57 p = "undefined type (bug)"; break;
58 case ONIGERR_PARSER_BUG:
59 p = "internal parser error (bug)"; break;
60 case ONIGERR_STACK_BUG:
61 p = "stack error (bug)"; break;
62 case ONIGERR_UNDEFINED_BYTECODE:
63 p = "undefined bytecode (bug)"; break;
64 case ONIGERR_UNEXPECTED_BYTECODE:
65 p = "unexpected bytecode (bug)"; break;
66 case ONIGERR_MATCH_STACK_LIMIT_OVER:
67 p = "match-stack limit over"; break;
68 case ONIGERR_DEFAULT_ENCODING_IS_NOT_SET:
69 p = "default multibyte-encoding is not set"; break;
70 case ONIGERR_SPECIFIED_ENCODING_CANT_CONVERT_TO_WIDE_CHAR:
71 p = "can't convert to wide-char on specified multibyte-encoding"; break;
72 case ONIGERR_INVALID_ARGUMENT:
73 p = "invalid argument"; break;
74 case ONIGERR_END_PATTERN_AT_LEFT_BRACE:
75 p = "end pattern at left brace"; break;
76 case ONIGERR_END_PATTERN_AT_LEFT_BRACKET:
77 p = "end pattern at left bracket"; break;
78 case ONIGERR_EMPTY_CHAR_CLASS:
79 p = "empty char-class"; break;
80 case ONIGERR_PREMATURE_END_OF_CHAR_CLASS:
81 p = "premature end of char-class"; break;
82 case ONIGERR_END_PATTERN_AT_ESCAPE:
83 p = "end pattern at escape"; break;
84 case ONIGERR_END_PATTERN_AT_META:
85 p = "end pattern at meta"; break;
86 case ONIGERR_END_PATTERN_AT_CONTROL:
87 p = "end pattern at control"; break;
88 case ONIGERR_META_CODE_SYNTAX:
89 p = "invalid meta-code syntax"; break;
90 case ONIGERR_CONTROL_CODE_SYNTAX:
91 p = "invalid control-code syntax"; break;
92 case ONIGERR_CHAR_CLASS_VALUE_AT_END_OF_RANGE:
93 p = "char-class value at end of range"; break;
94 case ONIGERR_CHAR_CLASS_VALUE_AT_START_OF_RANGE:
95 p = "char-class value at start of range"; break;
96 case ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS:
97 p = "unmatched range specifier in char-class"; break;
98 case ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED:
99 p = "target of repeat operator is not specified"; break;
100 case ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID:
101 p = "target of repeat operator is invalid"; break;
102 case ONIGERR_NESTED_REPEAT_OPERATOR:
103 p = "nested repeat operator"; break;
104 case ONIGERR_UNMATCHED_CLOSE_PARENTHESIS:
105 p = "unmatched close parenthesis"; break;
106 case ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS:
107 p = "end pattern with unmatched parenthesis"; break;
108 case ONIGERR_END_PATTERN_IN_GROUP:
109 p = "end pattern in group"; break;
110 case ONIGERR_UNDEFINED_GROUP_OPTION:
111 p = "undefined group option"; break;
112 case ONIGERR_INVALID_POSIX_BRACKET_TYPE:
113 p = "invalid POSIX bracket type"; break;
114 case ONIGERR_INVALID_LOOK_BEHIND_PATTERN:
115 p = "invalid pattern in look-behind"; break;
116 case ONIGERR_INVALID_REPEAT_RANGE_PATTERN:
117 p = "invalid repeat range {lower,upper}"; break;
118 case ONIGERR_INVALID_CONDITION_PATTERN:
119 p = "invalid conditional pattern"; break;
120 case ONIGERR_TOO_BIG_NUMBER:
121 p = "too big number"; break;
122 case ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE:
123 p = "too big number for repeat range"; break;
124 case ONIGERR_UPPER_SMALLER_THAN_LOWER_IN_REPEAT_RANGE:
125 p = "upper is smaller than lower in repeat range"; break;
126 case ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS:
127 p = "empty range in char class"; break;
128 case ONIGERR_MISMATCH_CODE_LENGTH_IN_CLASS_RANGE:
129 p = "mismatch multibyte code length in char-class range"; break;
130 case ONIGERR_TOO_MANY_MULTI_BYTE_RANGES:
131 p = "too many multibyte code ranges are specified"; break;
132 case ONIGERR_TOO_SHORT_MULTI_BYTE_STRING:
133 p = "too short multibyte code string"; break;
134 case ONIGERR_TOO_BIG_BACKREF_NUMBER:
135 p = "too big backref number"; break;
136 case ONIGERR_INVALID_BACKREF:
137#ifdef USE_NAMED_GROUP
138 p = "invalid backref number/name"; break;
139#else
140 p = "invalid backref number"; break;
141#endif
142 case ONIGERR_NUMBERED_BACKREF_OR_CALL_NOT_ALLOWED:
143 p = "numbered backref/call is not allowed. (use name)"; break;
144 case ONIGERR_TOO_SHORT_DIGITS:
145 p = "too short digits"; break;
146 case ONIGERR_TOO_LONG_WIDE_CHAR_VALUE:
147 p = "too long wide-char value"; break;
148 case ONIGERR_EMPTY_GROUP_NAME:
149 p = "group name is empty"; break;
150 case ONIGERR_INVALID_GROUP_NAME:
151 p = "invalid group name <%n>"; break;
152 case ONIGERR_INVALID_CHAR_IN_GROUP_NAME:
153#ifdef USE_NAMED_GROUP
154 p = "invalid char in group name <%n>"; break;
155#else
156 p = "invalid char in group number <%n>"; break;
157#endif
158 case ONIGERR_UNDEFINED_NAME_REFERENCE:
159 p = "undefined name <%n> reference"; break;
160 case ONIGERR_UNDEFINED_GROUP_REFERENCE:
161 p = "undefined group <%n> reference"; break;
162 case ONIGERR_MULTIPLEX_DEFINED_NAME:
163 p = "multiplex defined name <%n>"; break;
164 case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL:
165 p = "multiplex definition name <%n> call"; break;
166 case ONIGERR_NEVER_ENDING_RECURSION:
167 p = "never ending recursion"; break;
168 case ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY:
169 p = "group number is too big for capture history"; break;
170 case ONIGERR_INVALID_CHAR_PROPERTY_NAME:
171 p = "invalid character property name {%n}"; break;
172 case ONIGERR_TOO_MANY_CAPTURE_GROUPS:
173 p = "too many capture groups are specified"; break;
174 case ONIGERR_INVALID_CODE_POINT_VALUE:
175 p = "invalid code point value"; break;
176 case ONIGERR_TOO_BIG_WIDE_CHAR_VALUE:
177 p = "too big wide-char value"; break;
178 case ONIGERR_NOT_SUPPORTED_ENCODING_COMBINATION:
179 p = "not supported encoding combination"; break;
180 case ONIGERR_INVALID_COMBINATION_OF_OPTIONS:
181 p = "invalid combination of options"; break;
182 case ONIGERR_OVER_THREAD_PASS_LIMIT_COUNT:
183 p = "over thread pass limit count"; break;
184
185 default:
186 p = "undefined error code"; break;
187 }
188
189 return (UChar* )p;
190}
191
192static void sprint_byte(char* s, unsigned int v)
193{
194 sprintf(s, "%02x", (v & 0377));
195}
196
197static void sprint_byte_with_x(char* s, unsigned int v)
198{
199 sprintf(s, "\\x%02x", (v & 0377));
200}
201
202static int to_ascii(OnigEncoding enc, UChar *s, UChar *end,
203 UChar buf[], int buf_size, int *is_over)
204{
205 int len;
206 UChar *p;
207 OnigCodePoint code;
208
209 if (ONIGENC_MBC_MINLEN(enc) > 1) {
210 p = s;
211 len = 0;
212 while (p < end) {
213 code = ONIGENC_MBC_TO_CODE(enc, p, end);
214 if (code >= 0x80) {
215 if (code > 0xffff && len + 10 <= buf_size) {
216 sprint_byte_with_x((char*)(&(buf[len])), (unsigned int)(code >> 24));
217 sprint_byte((char*)(&(buf[len+4])), (unsigned int)(code >> 16));
218 sprint_byte((char*)(&(buf[len+6])), (unsigned int)(code >> 8));
219 sprint_byte((char*)(&(buf[len+8])), (unsigned int)code);
220 len += 10;
221 }
222 else if (len + 6 <= buf_size) {
223 sprint_byte_with_x((char*)(&(buf[len])), (unsigned int)(code >> 8));
224 sprint_byte((char*)(&(buf[len+4])), (unsigned int)code);
225 len += 6;
226 }
227 else {
228 break;
229 }
230 }
231 else {
232 buf[len++] = (UChar )code;
233 }
234
235 p += enclen(enc, p);
236 if (len >= buf_size) break;
237 }
238
239 *is_over = ((p < end) ? 1 : 0);
240 }
241 else {
242 len = (int )MIN((end - s), buf_size);
243 xmemcpy(buf, s, (size_t )len);
244 *is_over = ((buf_size < (end - s)) ? 1 : 0);
245 }
246
247 return len;
248}
249
250
251/* for ONIG_MAX_ERROR_MESSAGE_LEN */
252#define MAX_ERROR_PAR_LEN 30
253
254extern int
255#ifdef HAVE_STDARG_PROTOTYPES
256onig_error_code_to_str(UChar* s, OnigPosition code, ...)
257#else
258onig_error_code_to_str(s, code, va_alist)
259 UChar* s;
260 OnigPosition code;
261 va_dcl
262#endif
263{
264 UChar *p, *q;
265 OnigErrorInfo* einfo;
266 size_t len;
267 int is_over;
268 UChar parbuf[MAX_ERROR_PAR_LEN];
269 va_list vargs;
270
271 va_init_list(vargs, code);
272
273 switch (code) {
274 case ONIGERR_UNDEFINED_NAME_REFERENCE:
275 case ONIGERR_UNDEFINED_GROUP_REFERENCE:
276 case ONIGERR_MULTIPLEX_DEFINED_NAME:
277 case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL:
278 case ONIGERR_INVALID_GROUP_NAME:
279 case ONIGERR_INVALID_CHAR_IN_GROUP_NAME:
280 case ONIGERR_INVALID_CHAR_PROPERTY_NAME:
281 einfo = va_arg(vargs, OnigErrorInfo*);
282 len = to_ascii(einfo->enc, einfo->par, einfo->par_end,
283 parbuf, MAX_ERROR_PAR_LEN - 3, &is_over);
284 q = onig_error_code_to_format(code);
285 p = s;
286 while (*q != '\0') {
287 if (*q == '%') {
288 q++;
289 if (*q == 'n') { /* '%n': name */
290 xmemcpy(p, parbuf, len);
291 p += len;
292 if (is_over != 0) {
293 xmemcpy(p, "...", 3);
294 p += 3;
295 }
296 q++;
297 }
298 else
299 goto normal_char;
300 }
301 else {
302 normal_char:
303 *p++ = *q++;
304 }
305 }
306 *p = '\0';
307 len = p - s;
308 break;
309
310 default:
311 q = onig_error_code_to_format(code);
312 if (q) {
313 len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, q);
314 xmemcpy(s, q, len);
315 } else {
316 len = 0;
317 }
318 s[len] = '\0';
319 break;
320 }
321
322 va_end(vargs);
323 return (int )len;
324}
325
326
327void
328#ifdef HAVE_STDARG_PROTOTYPES
329onig_snprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc,
330 UChar* pat, UChar* pat_end, const UChar *fmt, ...)
331#else
332onig_snprintf_with_pattern(buf, bufsize, enc, pat, pat_end, fmt, va_alist)
333 UChar buf[];
334 int bufsize;
335 OnigEncoding enc;
336 UChar* pat;
337 UChar* pat_end;
338 const UChar *fmt;
339 va_dcl
340#endif
341{
342 size_t need;
343 int n, len;
344 UChar *p, *s, *bp;
345 UChar bs[6];
346 va_list args;
347
348 va_init_list(args, fmt);
349 n = xvsnprintf((char* )buf, bufsize, (const char* )fmt, args);
350 va_end(args);
351
352 need = (pat_end - pat) * 4 + 4;
353
354 if (n + need < (size_t )bufsize) {
355 strcat((char* )buf, ": /");
356 s = buf + onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, buf);
357
358 p = pat;
359 while (p < pat_end) {
360 if (*p == '\\') {
361 *s++ = *p++;
362 len = enclen(enc, p);
363 while (len-- > 0) *s++ = *p++;
364 }
365 else if (*p == '/') {
366 *s++ = (unsigned char )'\\';
367 *s++ = *p++;
368 }
369 else if (ONIGENC_IS_MBC_HEAD(enc, p)) {
370 len = enclen(enc, p);
371 if (ONIGENC_MBC_MINLEN(enc) == 1) {
372 while (len-- > 0) *s++ = *p++;
373 }
374 else { /* for UTF16 */
375 int blen;
376
377 while (len-- > 0) {
378 sprint_byte_with_x((char* )bs, (unsigned int )(*p++));
379 blen = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs);
380 bp = bs;
381 while (blen-- > 0) *s++ = *bp++;
382 }
383 }
384 }
385 else if (!ONIGENC_IS_CODE_PRINT(enc, *p) &&
386 !ONIGENC_IS_CODE_SPACE(enc, *p)) {
387 sprint_byte_with_x((char* )bs, (unsigned int )(*p++));
388 len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs);
389 bp = bs;
390 while (len-- > 0) *s++ = *bp++;
391 }
392 else {
393 *s++ = *p++;
394 }
395 }
396
397 *s++ = '/';
398 *s = '\0';
399 }
400}
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