Ruby
2.0.0p247(2013-06-27revision41674)
|
00001 /********************************************************************** 00002 regerror.c - Onigmo (Oniguruma-mod) (regular expression library) 00003 **********************************************************************/ 00004 /*- 00005 * Copyright (c) 2002-2007 K.Kosako <sndgk393 AT ybb DOT ne DOT jp> 00006 * Copyright (c) 2011 K.Takata <kentkt AT csc DOT jp> 00007 * All rights reserved. 00008 * 00009 * Redistribution and use in source and binary forms, with or without 00010 * modification, are permitted provided that the following conditions 00011 * are met: 00012 * 1. Redistributions of source code must retain the above copyright 00013 * notice, this list of conditions and the following disclaimer. 00014 * 2. Redistributions in binary form must reproduce the above copyright 00015 * notice, this list of conditions and the following disclaimer in the 00016 * documentation and/or other materials provided with the distribution. 00017 * 00018 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 00019 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00020 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00021 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 00022 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00023 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00024 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00025 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00026 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00027 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00028 * SUCH DAMAGE. 00029 */ 00030 00031 #include "regint.h" 00032 #include <stdio.h> /* for vsnprintf() */ 00033 00034 #ifdef HAVE_STDARG_PROTOTYPES 00035 #include <stdarg.h> 00036 #define va_init_list(a,b) va_start(a,b) 00037 #else 00038 #include <varargs.h> 00039 #define va_init_list(a,b) va_start(a) 00040 #endif 00041 00042 extern UChar* 00043 onig_error_code_to_format(OnigPosition code) 00044 { 00045 const char *p; 00046 00047 if (code >= 0) return (UChar* )0; 00048 00049 switch (code) { 00050 case ONIG_MISMATCH: 00051 p = "mismatch"; break; 00052 case ONIG_NO_SUPPORT_CONFIG: 00053 p = "no support in this configuration"; break; 00054 case ONIGERR_MEMORY: 00055 p = "failed to allocate memory"; break; 00056 case ONIGERR_MATCH_STACK_LIMIT_OVER: 00057 p = "match-stack limit over"; break; 00058 case ONIGERR_TYPE_BUG: 00059 p = "undefined type (bug)"; break; 00060 case ONIGERR_PARSER_BUG: 00061 p = "internal parser error (bug)"; break; 00062 case ONIGERR_STACK_BUG: 00063 p = "stack error (bug)"; break; 00064 case ONIGERR_UNDEFINED_BYTECODE: 00065 p = "undefined bytecode (bug)"; break; 00066 case ONIGERR_UNEXPECTED_BYTECODE: 00067 p = "unexpected bytecode (bug)"; break; 00068 case ONIGERR_DEFAULT_ENCODING_IS_NOT_SET: 00069 p = "default multibyte-encoding is not set"; break; 00070 case ONIGERR_SPECIFIED_ENCODING_CANT_CONVERT_TO_WIDE_CHAR: 00071 p = "can't convert to wide-char on specified multibyte-encoding"; break; 00072 case ONIGERR_INVALID_ARGUMENT: 00073 p = "invalid argument"; break; 00074 case ONIGERR_END_PATTERN_AT_LEFT_BRACE: 00075 p = "end pattern at left brace"; break; 00076 case ONIGERR_END_PATTERN_AT_LEFT_BRACKET: 00077 p = "end pattern at left bracket"; break; 00078 case ONIGERR_EMPTY_CHAR_CLASS: 00079 p = "empty char-class"; break; 00080 case ONIGERR_PREMATURE_END_OF_CHAR_CLASS: 00081 p = "premature end of char-class"; break; 00082 case ONIGERR_END_PATTERN_AT_ESCAPE: 00083 p = "end pattern at escape"; break; 00084 case ONIGERR_END_PATTERN_AT_META: 00085 p = "end pattern at meta"; break; 00086 case ONIGERR_END_PATTERN_AT_CONTROL: 00087 p = "end pattern at control"; break; 00088 case ONIGERR_META_CODE_SYNTAX: 00089 p = "invalid meta-code syntax"; break; 00090 case ONIGERR_CONTROL_CODE_SYNTAX: 00091 p = "invalid control-code syntax"; break; 00092 case ONIGERR_CHAR_CLASS_VALUE_AT_END_OF_RANGE: 00093 p = "char-class value at end of range"; break; 00094 case ONIGERR_CHAR_CLASS_VALUE_AT_START_OF_RANGE: 00095 p = "char-class value at start of range"; break; 00096 case ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS: 00097 p = "unmatched range specifier in char-class"; break; 00098 case ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED: 00099 p = "target of repeat operator is not specified"; break; 00100 case ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID: 00101 p = "target of repeat operator is invalid"; break; 00102 case ONIGERR_NESTED_REPEAT_OPERATOR: 00103 p = "nested repeat operator"; break; 00104 case ONIGERR_UNMATCHED_CLOSE_PARENTHESIS: 00105 p = "unmatched close parenthesis"; break; 00106 case ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS: 00107 p = "end pattern with unmatched parenthesis"; break; 00108 case ONIGERR_END_PATTERN_IN_GROUP: 00109 p = "end pattern in group"; break; 00110 case ONIGERR_UNDEFINED_GROUP_OPTION: 00111 p = "undefined group option"; break; 00112 case ONIGERR_INVALID_POSIX_BRACKET_TYPE: 00113 p = "invalid POSIX bracket type"; break; 00114 case ONIGERR_INVALID_LOOK_BEHIND_PATTERN: 00115 p = "invalid pattern in look-behind"; break; 00116 case ONIGERR_INVALID_REPEAT_RANGE_PATTERN: 00117 p = "invalid repeat range {lower,upper}"; break; 00118 case ONIGERR_INVALID_CONDITION_PATTERN: 00119 p = "invalid conditional pattern"; break; 00120 case ONIGERR_TOO_BIG_NUMBER: 00121 p = "too big number"; break; 00122 case ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE: 00123 p = "too big number for repeat range"; break; 00124 case ONIGERR_UPPER_SMALLER_THAN_LOWER_IN_REPEAT_RANGE: 00125 p = "upper is smaller than lower in repeat range"; break; 00126 case ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS: 00127 p = "empty range in char class"; break; 00128 case ONIGERR_MISMATCH_CODE_LENGTH_IN_CLASS_RANGE: 00129 p = "mismatch multibyte code length in char-class range"; break; 00130 case ONIGERR_TOO_MANY_MULTI_BYTE_RANGES: 00131 p = "too many multibyte code ranges are specified"; break; 00132 case ONIGERR_TOO_SHORT_MULTI_BYTE_STRING: 00133 p = "too short multibyte code string"; break; 00134 case ONIGERR_TOO_BIG_BACKREF_NUMBER: 00135 p = "too big backref number"; break; 00136 case ONIGERR_INVALID_BACKREF: 00137 #ifdef USE_NAMED_GROUP 00138 p = "invalid backref number/name"; break; 00139 #else 00140 p = "invalid backref number"; break; 00141 #endif 00142 case ONIGERR_NUMBERED_BACKREF_OR_CALL_NOT_ALLOWED: 00143 p = "numbered backref/call is not allowed. (use name)"; break; 00144 case ONIGERR_TOO_BIG_WIDE_CHAR_VALUE: 00145 p = "too big wide-char value"; break; 00146 case ONIGERR_TOO_SHORT_DIGITS: 00147 p = "too short digits"; break; 00148 case ONIGERR_TOO_LONG_WIDE_CHAR_VALUE: 00149 p = "too long wide-char value"; break; 00150 case ONIGERR_INVALID_CODE_POINT_VALUE: 00151 p = "invalid code point value"; break; 00152 case ONIGERR_EMPTY_GROUP_NAME: 00153 p = "group name is empty"; break; 00154 case ONIGERR_INVALID_GROUP_NAME: 00155 p = "invalid group name <%n>"; break; 00156 case ONIGERR_INVALID_CHAR_IN_GROUP_NAME: 00157 #ifdef USE_NAMED_GROUP 00158 p = "invalid char in group name <%n>"; break; 00159 #else 00160 p = "invalid char in group number <%n>"; break; 00161 #endif 00162 case ONIGERR_UNDEFINED_NAME_REFERENCE: 00163 p = "undefined name <%n> reference"; break; 00164 case ONIGERR_UNDEFINED_GROUP_REFERENCE: 00165 p = "undefined group <%n> reference"; break; 00166 case ONIGERR_MULTIPLEX_DEFINED_NAME: 00167 p = "multiplex defined name <%n>"; break; 00168 case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL: 00169 p = "multiplex definition name <%n> call"; break; 00170 case ONIGERR_NEVER_ENDING_RECURSION: 00171 p = "never ending recursion"; break; 00172 case ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY: 00173 p = "group number is too big for capture history"; break; 00174 case ONIGERR_INVALID_CHAR_PROPERTY_NAME: 00175 p = "invalid character property name {%n}"; break; 00176 case ONIGERR_NOT_SUPPORTED_ENCODING_COMBINATION: 00177 p = "not supported encoding combination"; break; 00178 case ONIGERR_INVALID_COMBINATION_OF_OPTIONS: 00179 p = "invalid combination of options"; break; 00180 case ONIGERR_OVER_THREAD_PASS_LIMIT_COUNT: 00181 p = "over thread pass limit count"; break; 00182 00183 default: 00184 p = "undefined error code"; break; 00185 } 00186 00187 return (UChar* )p; 00188 } 00189 00190 static void sprint_byte(char* s, unsigned int v) 00191 { 00192 sprintf(s, "%02x", (v & 0377)); 00193 } 00194 00195 static void sprint_byte_with_x(char* s, unsigned int v) 00196 { 00197 sprintf(s, "\\x%02x", (v & 0377)); 00198 } 00199 00200 static int to_ascii(OnigEncoding enc, UChar *s, UChar *end, 00201 UChar buf[], int buf_size, int *is_over) 00202 { 00203 int len; 00204 UChar *p; 00205 OnigCodePoint code; 00206 00207 if (ONIGENC_MBC_MINLEN(enc) > 1) { 00208 p = s; 00209 len = 0; 00210 while (p < end) { 00211 code = ONIGENC_MBC_TO_CODE(enc, p, end); 00212 if (code >= 0x80) { 00213 if (code > 0xffff && len + 10 <= buf_size) { 00214 sprint_byte_with_x((char*)(&(buf[len])), (unsigned int)(code >> 24)); 00215 sprint_byte((char*)(&(buf[len+4])), (unsigned int)(code >> 16)); 00216 sprint_byte((char*)(&(buf[len+6])), (unsigned int)(code >> 8)); 00217 sprint_byte((char*)(&(buf[len+8])), (unsigned int)code); 00218 len += 10; 00219 } 00220 else if (len + 6 <= buf_size) { 00221 sprint_byte_with_x((char*)(&(buf[len])), (unsigned int)(code >> 8)); 00222 sprint_byte((char*)(&(buf[len+4])), (unsigned int)code); 00223 len += 6; 00224 } 00225 else { 00226 break; 00227 } 00228 } 00229 else { 00230 buf[len++] = (UChar )code; 00231 } 00232 00233 p += enclen(enc, p, end); 00234 if (len >= buf_size) break; 00235 } 00236 00237 *is_over = ((p < end) ? 1 : 0); 00238 } 00239 else { 00240 len = (int )MIN((end - s), buf_size); 00241 xmemcpy(buf, s, (size_t )len); 00242 *is_over = ((buf_size < (end - s)) ? 1 : 0); 00243 } 00244 00245 return len; 00246 } 00247 00248 00249 /* for ONIG_MAX_ERROR_MESSAGE_LEN */ 00250 #define MAX_ERROR_PAR_LEN 30 00251 00252 extern int 00253 #ifdef HAVE_STDARG_PROTOTYPES 00254 onig_error_code_to_str(UChar* s, OnigPosition code, ...) 00255 #else 00256 onig_error_code_to_str(s, code, va_alist) 00257 UChar* s; 00258 OnigPosition code; 00259 va_dcl 00260 #endif 00261 { 00262 UChar *p, *q; 00263 OnigErrorInfo* einfo; 00264 size_t len; 00265 int is_over; 00266 UChar parbuf[MAX_ERROR_PAR_LEN]; 00267 va_list vargs; 00268 00269 va_init_list(vargs, code); 00270 00271 switch (code) { 00272 case ONIGERR_UNDEFINED_NAME_REFERENCE: 00273 case ONIGERR_UNDEFINED_GROUP_REFERENCE: 00274 case ONIGERR_MULTIPLEX_DEFINED_NAME: 00275 case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL: 00276 case ONIGERR_INVALID_GROUP_NAME: 00277 case ONIGERR_INVALID_CHAR_IN_GROUP_NAME: 00278 case ONIGERR_INVALID_CHAR_PROPERTY_NAME: 00279 einfo = va_arg(vargs, OnigErrorInfo*); 00280 len = to_ascii(einfo->enc, einfo->par, einfo->par_end, 00281 parbuf, MAX_ERROR_PAR_LEN - 3, &is_over); 00282 q = onig_error_code_to_format(code); 00283 p = s; 00284 while (*q != '\0') { 00285 if (*q == '%') { 00286 q++; 00287 if (*q == 'n') { /* '%n': name */ 00288 xmemcpy(p, parbuf, len); 00289 p += len; 00290 if (is_over != 0) { 00291 xmemcpy(p, "...", 3); 00292 p += 3; 00293 } 00294 q++; 00295 } 00296 else 00297 goto normal_char; 00298 } 00299 else { 00300 normal_char: 00301 *p++ = *q++; 00302 } 00303 } 00304 *p = '\0'; 00305 len = p - s; 00306 break; 00307 00308 default: 00309 q = onig_error_code_to_format(code); 00310 len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, q); 00311 xmemcpy(s, q, len); 00312 s[len] = '\0'; 00313 break; 00314 } 00315 00316 va_end(vargs); 00317 return (int )len; 00318 } 00319 00320 void 00321 onig_vsnprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc, 00322 UChar* pat, UChar* pat_end, const UChar *fmt, va_list args) 00323 { 00324 size_t need; 00325 int n, len; 00326 UChar *p, *s, *bp; 00327 UChar bs[6]; 00328 00329 n = xvsnprintf((char* )buf, bufsize, (const char* )fmt, args); 00330 00331 need = (pat_end - pat) * 4 + 4; 00332 00333 if (n + need < (size_t )bufsize) { 00334 strcat((char* )buf, ": /"); 00335 s = buf + onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, buf); 00336 00337 p = pat; 00338 while (p < pat_end) { 00339 if (*p == '\\') { 00340 *s++ = *p++; 00341 len = enclen(enc, p, pat_end); 00342 while (len-- > 0) *s++ = *p++; 00343 } 00344 else if (*p == '/') { 00345 *s++ = (unsigned char )'\\'; 00346 *s++ = *p++; 00347 } 00348 else if (ONIGENC_IS_MBC_HEAD(enc, p, pat_end)) { 00349 len = enclen(enc, p, pat_end); 00350 if (ONIGENC_MBC_MINLEN(enc) == 1) { 00351 while (len-- > 0) *s++ = *p++; 00352 } 00353 else { /* for UTF16 */ 00354 int blen; 00355 00356 while (len-- > 0) { 00357 sprint_byte_with_x((char* )bs, (unsigned int )(*p++)); 00358 blen = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs); 00359 bp = bs; 00360 while (blen-- > 0) *s++ = *bp++; 00361 } 00362 } 00363 } 00364 else if (!ONIGENC_IS_CODE_PRINT(enc, *p) && 00365 !ONIGENC_IS_CODE_SPACE(enc, *p)) { 00366 sprint_byte_with_x((char* )bs, (unsigned int )(*p++)); 00367 len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs); 00368 bp = bs; 00369 while (len-- > 0) *s++ = *bp++; 00370 } 00371 else { 00372 *s++ = *p++; 00373 } 00374 } 00375 00376 *s++ = '/'; 00377 *s = '\0'; 00378 } 00379 } 00380 00381 void 00382 #ifdef HAVE_STDARG_PROTOTYPES 00383 onig_snprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc, 00384 UChar* pat, UChar* pat_end, const UChar *fmt, ...) 00385 #else 00386 onig_snprintf_with_pattern(buf, bufsize, enc, pat, pat_end, fmt, va_alist) 00387 UChar buf[]; 00388 int bufsize; 00389 OnigEncoding enc; 00390 UChar* pat; 00391 UChar* pat_end; 00392 const UChar *fmt; 00393 va_dcl 00394 #endif 00395 { 00396 va_list args; 00397 va_init_list(args, fmt); 00398 onig_vsnprintf_with_pattern(buf, bufsize, enc, 00399 pat, pat_end, fmt, args); 00400 va_end(args); 00401 } 00402 00403