Ruby 1.9.3p327(2012-11-10revision37606)
|
00001 /********************************************************************** 00002 regerror.c - Oniguruma (regular expression library) 00003 **********************************************************************/ 00004 /*- 00005 * Copyright (c) 2002-2007 K.Kosako <sndgk393 AT ybb DOT ne DOT jp> 00006 * All rights reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions 00010 * are met: 00011 * 1. Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * 2. Redistributions in binary form must reproduce the above copyright 00014 * notice, this list of conditions and the following disclaimer in the 00015 * documentation and/or other materials provided with the distribution. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 00018 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 00021 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00022 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00023 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00024 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00025 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00026 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00027 * SUCH DAMAGE. 00028 */ 00029 00030 #include "regint.h" 00031 #include <stdio.h> /* for vsnprintf() */ 00032 00033 #ifdef HAVE_STDARG_PROTOTYPES 00034 #include <stdarg.h> 00035 #define va_init_list(a,b) va_start(a,b) 00036 #else 00037 #include <varargs.h> 00038 #define va_init_list(a,b) va_start(a) 00039 #endif 00040 00041 extern UChar* 00042 onig_error_code_to_format(int code) 00043 { 00044 const char *p; 00045 00046 if (code >= 0) return (UChar* )0; 00047 00048 switch (code) { 00049 case ONIG_MISMATCH: 00050 p = "mismatch"; break; 00051 case ONIG_NO_SUPPORT_CONFIG: 00052 p = "no support in this configuration"; break; 00053 case ONIGERR_MEMORY: 00054 p = "failed to allocate memory"; break; 00055 case ONIGERR_MATCH_STACK_LIMIT_OVER: 00056 p = "match-stack limit over"; break; 00057 case ONIGERR_TYPE_BUG: 00058 p = "undefined type (bug)"; break; 00059 case ONIGERR_PARSER_BUG: 00060 p = "internal parser error (bug)"; break; 00061 case ONIGERR_STACK_BUG: 00062 p = "stack error (bug)"; break; 00063 case ONIGERR_UNDEFINED_BYTECODE: 00064 p = "undefined bytecode (bug)"; break; 00065 case ONIGERR_UNEXPECTED_BYTECODE: 00066 p = "unexpected bytecode (bug)"; break; 00067 case ONIGERR_DEFAULT_ENCODING_IS_NOT_SETTED: 00068 p = "default multibyte-encoding is not setted"; break; 00069 case ONIGERR_SPECIFIED_ENCODING_CANT_CONVERT_TO_WIDE_CHAR: 00070 p = "can't convert to wide-char on specified multibyte-encoding"; break; 00071 case ONIGERR_INVALID_ARGUMENT: 00072 p = "invalid argument"; break; 00073 case ONIGERR_END_PATTERN_AT_LEFT_BRACE: 00074 p = "end pattern at left brace"; break; 00075 case ONIGERR_END_PATTERN_AT_LEFT_BRACKET: 00076 p = "end pattern at left bracket"; break; 00077 case ONIGERR_EMPTY_CHAR_CLASS: 00078 p = "empty char-class"; break; 00079 case ONIGERR_PREMATURE_END_OF_CHAR_CLASS: 00080 p = "premature end of char-class"; break; 00081 case ONIGERR_END_PATTERN_AT_ESCAPE: 00082 p = "end pattern at escape"; break; 00083 case ONIGERR_END_PATTERN_AT_META: 00084 p = "end pattern at meta"; break; 00085 case ONIGERR_END_PATTERN_AT_CONTROL: 00086 p = "end pattern at control"; break; 00087 case ONIGERR_META_CODE_SYNTAX: 00088 p = "invalid meta-code syntax"; break; 00089 case ONIGERR_CONTROL_CODE_SYNTAX: 00090 p = "invalid control-code syntax"; break; 00091 case ONIGERR_CHAR_CLASS_VALUE_AT_END_OF_RANGE: 00092 p = "char-class value at end of range"; break; 00093 case ONIGERR_CHAR_CLASS_VALUE_AT_START_OF_RANGE: 00094 p = "char-class value at start of range"; break; 00095 case ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS: 00096 p = "unmatched range specifier in char-class"; break; 00097 case ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED: 00098 p = "target of repeat operator is not specified"; break; 00099 case ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID: 00100 p = "target of repeat operator is invalid"; break; 00101 case ONIGERR_NESTED_REPEAT_OPERATOR: 00102 p = "nested repeat operator"; break; 00103 case ONIGERR_UNMATCHED_CLOSE_PARENTHESIS: 00104 p = "unmatched close parenthesis"; break; 00105 case ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS: 00106 p = "end pattern with unmatched parenthesis"; break; 00107 case ONIGERR_END_PATTERN_IN_GROUP: 00108 p = "end pattern in group"; break; 00109 case ONIGERR_UNDEFINED_GROUP_OPTION: 00110 p = "undefined group option"; break; 00111 case ONIGERR_INVALID_POSIX_BRACKET_TYPE: 00112 p = "invalid POSIX bracket type"; break; 00113 case ONIGERR_INVALID_LOOK_BEHIND_PATTERN: 00114 p = "invalid pattern in look-behind"; break; 00115 case ONIGERR_INVALID_REPEAT_RANGE_PATTERN: 00116 p = "invalid repeat range {lower,upper}"; break; 00117 case ONIGERR_TOO_BIG_NUMBER: 00118 p = "too big number"; break; 00119 case ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE: 00120 p = "too big number for repeat range"; break; 00121 case ONIGERR_UPPER_SMALLER_THAN_LOWER_IN_REPEAT_RANGE: 00122 p = "upper is smaller than lower in repeat range"; break; 00123 case ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS: 00124 p = "empty range in char class"; break; 00125 case ONIGERR_MISMATCH_CODE_LENGTH_IN_CLASS_RANGE: 00126 p = "mismatch multibyte code length in char-class range"; break; 00127 case ONIGERR_TOO_MANY_MULTI_BYTE_RANGES: 00128 p = "too many multibyte code ranges are specified"; break; 00129 case ONIGERR_TOO_SHORT_MULTI_BYTE_STRING: 00130 p = "too short multibyte code string"; break; 00131 case ONIGERR_TOO_BIG_BACKREF_NUMBER: 00132 p = "too big backref number"; break; 00133 case ONIGERR_INVALID_BACKREF: 00134 #ifdef USE_NAMED_GROUP 00135 p = "invalid backref number/name"; break; 00136 #else 00137 p = "invalid backref number"; break; 00138 #endif 00139 case ONIGERR_NUMBERED_BACKREF_OR_CALL_NOT_ALLOWED: 00140 p = "numbered backref/call is not allowed. (use name)"; break; 00141 case ONIGERR_TOO_BIG_WIDE_CHAR_VALUE: 00142 p = "too big wide-char value"; break; 00143 case ONIGERR_TOO_LONG_WIDE_CHAR_VALUE: 00144 p = "too long wide-char value"; break; 00145 case ONIGERR_INVALID_CODE_POINT_VALUE: 00146 p = "invalid code point value"; break; 00147 case ONIGERR_EMPTY_GROUP_NAME: 00148 p = "group name is empty"; break; 00149 case ONIGERR_INVALID_GROUP_NAME: 00150 p = "invalid group name <%n>"; break; 00151 case ONIGERR_INVALID_CHAR_IN_GROUP_NAME: 00152 #ifdef USE_NAMED_GROUP 00153 p = "invalid char in group name <%n>"; break; 00154 #else 00155 p = "invalid char in group number <%n>"; break; 00156 #endif 00157 case ONIGERR_UNDEFINED_NAME_REFERENCE: 00158 p = "undefined name <%n> reference"; break; 00159 case ONIGERR_UNDEFINED_GROUP_REFERENCE: 00160 p = "undefined group <%n> reference"; break; 00161 case ONIGERR_MULTIPLEX_DEFINED_NAME: 00162 p = "multiplex defined name <%n>"; break; 00163 case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL: 00164 p = "multiplex definition name <%n> call"; break; 00165 case ONIGERR_NEVER_ENDING_RECURSION: 00166 p = "never ending recursion"; break; 00167 case ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY: 00168 p = "group number is too big for capture history"; break; 00169 case ONIGERR_INVALID_CHAR_PROPERTY_NAME: 00170 p = "invalid character property name {%n}"; break; 00171 case ONIGERR_NOT_SUPPORTED_ENCODING_COMBINATION: 00172 p = "not supported encoding combination"; break; 00173 case ONIGERR_INVALID_COMBINATION_OF_OPTIONS: 00174 p = "invalid combination of options"; break; 00175 case ONIGERR_OVER_THREAD_PASS_LIMIT_COUNT: 00176 p = "over thread pass limit count"; break; 00177 00178 default: 00179 p = "undefined error code"; break; 00180 } 00181 00182 return (UChar* )p; 00183 } 00184 00185 static void sprint_byte(char* s, unsigned int v) 00186 { 00187 sprintf(s, "%02x", (v & 0377)); 00188 } 00189 00190 static void sprint_byte_with_x(char* s, unsigned int v) 00191 { 00192 sprintf(s, "\\x%02x", (v & 0377)); 00193 } 00194 00195 static int to_ascii(OnigEncoding enc, UChar *s, UChar *end, 00196 UChar buf[], int buf_size, int *is_over) 00197 { 00198 int len; 00199 UChar *p; 00200 OnigCodePoint code; 00201 00202 if (ONIGENC_MBC_MINLEN(enc) > 1) { 00203 p = s; 00204 len = 0; 00205 while (p < end) { 00206 code = ONIGENC_MBC_TO_CODE(enc, p, end); 00207 if (code >= 0x80) { 00208 if (code > 0xffff && len + 10 <= buf_size) { 00209 sprint_byte_with_x((char*)(&(buf[len])), (unsigned int)(code >> 24)); 00210 sprint_byte((char*)(&(buf[len+4])), (unsigned int)(code >> 16)); 00211 sprint_byte((char*)(&(buf[len+6])), (unsigned int)(code >> 8)); 00212 sprint_byte((char*)(&(buf[len+8])), (unsigned int)code); 00213 len += 10; 00214 } 00215 else if (len + 6 <= buf_size) { 00216 sprint_byte_with_x((char*)(&(buf[len])), (unsigned int)(code >> 8)); 00217 sprint_byte((char*)(&(buf[len+4])), (unsigned int)code); 00218 len += 6; 00219 } 00220 else { 00221 break; 00222 } 00223 } 00224 else { 00225 buf[len++] = (UChar )code; 00226 } 00227 00228 p += enclen(enc, p, end); 00229 if (len >= buf_size) break; 00230 } 00231 00232 *is_over = ((p < end) ? 1 : 0); 00233 } 00234 else { 00235 len = (int)MIN((end - s), buf_size); 00236 xmemcpy(buf, s, (size_t )len); 00237 *is_over = ((buf_size < (end - s)) ? 1 : 0); 00238 } 00239 00240 return len; 00241 } 00242 00243 00244 /* for ONIG_MAX_ERROR_MESSAGE_LEN */ 00245 #define MAX_ERROR_PAR_LEN 30 00246 00247 extern int 00248 #ifdef HAVE_STDARG_PROTOTYPES 00249 onig_error_code_to_str(UChar* s, int code, ...) 00250 #else 00251 onig_error_code_to_str(s, code, va_alist) 00252 UChar* s; 00253 int code; 00254 va_dcl 00255 #endif 00256 { 00257 UChar *p, *q; 00258 OnigErrorInfo* einfo; 00259 size_t len; 00260 int is_over; 00261 UChar parbuf[MAX_ERROR_PAR_LEN]; 00262 va_list vargs; 00263 00264 va_init_list(vargs, code); 00265 00266 switch (code) { 00267 case ONIGERR_UNDEFINED_NAME_REFERENCE: 00268 case ONIGERR_UNDEFINED_GROUP_REFERENCE: 00269 case ONIGERR_MULTIPLEX_DEFINED_NAME: 00270 case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL: 00271 case ONIGERR_INVALID_GROUP_NAME: 00272 case ONIGERR_INVALID_CHAR_IN_GROUP_NAME: 00273 case ONIGERR_INVALID_CHAR_PROPERTY_NAME: 00274 einfo = va_arg(vargs, OnigErrorInfo*); 00275 len = to_ascii(einfo->enc, einfo->par, einfo->par_end, 00276 parbuf, MAX_ERROR_PAR_LEN - 3, &is_over); 00277 q = onig_error_code_to_format(code); 00278 p = s; 00279 while (*q != '\0') { 00280 if (*q == '%') { 00281 q++; 00282 if (*q == 'n') { /* '%n': name */ 00283 xmemcpy(p, parbuf, len); 00284 p += len; 00285 if (is_over != 0) { 00286 xmemcpy(p, "...", 3); 00287 p += 3; 00288 } 00289 q++; 00290 } 00291 else 00292 goto normal_char; 00293 } 00294 else { 00295 normal_char: 00296 *p++ = *q++; 00297 } 00298 } 00299 *p = '\0'; 00300 len = p - s; 00301 break; 00302 00303 default: 00304 q = onig_error_code_to_format(code); 00305 len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, q); 00306 xmemcpy(s, q, len); 00307 s[len] = '\0'; 00308 break; 00309 } 00310 00311 va_end(vargs); 00312 return (int)len; 00313 } 00314 00315 void 00316 onig_vsnprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc, 00317 UChar* pat, UChar* pat_end, const UChar *fmt, va_list args) 00318 { 00319 size_t need; 00320 int n, len; 00321 UChar *p, *s, *bp; 00322 UChar bs[6]; 00323 00324 n = xvsnprintf((char* )buf, bufsize, (const char* )fmt, args); 00325 00326 need = (pat_end - pat) * 4 + 4; 00327 00328 if (n + need < (size_t)bufsize) { 00329 strcat((char* )buf, ": /"); 00330 s = buf + onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, buf); 00331 00332 p = pat; 00333 while (p < pat_end) { 00334 if (*p == '\\') { 00335 *s++ = *p++; 00336 len = enclen(enc, p, pat_end); 00337 while (len-- > 0) *s++ = *p++; 00338 } 00339 else if (*p == '/') { 00340 *s++ = (unsigned char )'\\'; 00341 *s++ = *p++; 00342 } 00343 else if (ONIGENC_IS_MBC_HEAD(enc, p, pat_end)) { 00344 len = enclen(enc, p, pat_end); 00345 if (ONIGENC_MBC_MINLEN(enc) == 1) { 00346 while (len-- > 0) *s++ = *p++; 00347 } 00348 else { /* for UTF16 */ 00349 int blen; 00350 00351 while (len-- > 0) { 00352 sprint_byte_with_x((char* )bs, (unsigned int )(*p++)); 00353 blen = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs); 00354 bp = bs; 00355 while (blen-- > 0) *s++ = *bp++; 00356 } 00357 } 00358 } 00359 else if (!ONIGENC_IS_CODE_PRINT(enc, *p) && 00360 !ONIGENC_IS_CODE_SPACE(enc, *p)) { 00361 sprint_byte_with_x((char* )bs, (unsigned int )(*p++)); 00362 len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs); 00363 bp = bs; 00364 while (len-- > 0) *s++ = *bp++; 00365 } 00366 else { 00367 *s++ = *p++; 00368 } 00369 } 00370 00371 *s++ = '/'; 00372 *s = '\0'; 00373 } 00374 } 00375 00376 void 00377 #ifdef HAVE_STDARG_PROTOTYPES 00378 onig_snprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc, 00379 UChar* pat, UChar* pat_end, const UChar *fmt, ...) 00380 #else 00381 onig_snprintf_with_pattern(buf, bufsize, enc, pat, pat_end, fmt, va_alist) 00382 UChar buf[]; 00383 int bufsize; 00384 OnigEncoding enc; 00385 UChar* pat; 00386 UChar* pat_end; 00387 const UChar *fmt; 00388 va_dcl 00389 #endif 00390 { 00391 va_list args; 00392 va_init_list(args, fmt); 00393 onig_vsnprintf_with_pattern(buf, bufsize, enc, 00394 pat, pat_end, fmt, args); 00395 va_end(args); 00396 } 00397 00398