1 /********************************************************************** 2 regerror.c - Oniguruma (regular expression library) 3 **********************************************************************/ 4 /*- 5 * Copyright (c) 2002-2007 K.Kosako <sndgk393 AT ybb DOT ne DOT jp> 6 * All rights reserved. 7 * 8 * (C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR> 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #define HAVE_STDARG_PROTOTYPES 33 34 #include "regint.h" 35 36 #if 0 37 #include <stdio.h> /* for vsnprintf() */ 38 39 #ifdef HAVE_STDARG_PROTOTYPES 40 #include <stdarg.h> 41 #define va_init_list(a,b) va_start(a,b) 42 #else 43 #include <varargs.h> 44 #define va_init_list(a,b) va_start(a) 45 #endif 46 #endif 47 48 extern UChar* 49 onig_error_code_to_format(int code) 50 { 51 char *p; 52 53 if (code >= 0) return (UChar* )0; 54 55 switch (code) { 56 case ONIG_MISMATCH: 57 p = "mismatch"; break; 58 case ONIG_NO_SUPPORT_CONFIG: 59 p = "no support in this configuration"; break; 60 case ONIGERR_MEMORY: 61 p = "fail to memory allocation"; break; 62 case ONIGERR_MATCH_STACK_LIMIT_OVER: 63 p = "match-stack limit over"; break; 64 case ONIGERR_TYPE_BUG: 65 p = "undefined type (bug)"; break; 66 case ONIGERR_PARSER_BUG: 67 p = "internal parser error (bug)"; break; 68 case ONIGERR_STACK_BUG: 69 p = "stack error (bug)"; break; 70 case ONIGERR_UNDEFINED_BYTECODE: 71 p = "undefined bytecode (bug)"; break; 72 case ONIGERR_UNEXPECTED_BYTECODE: 73 p = "unexpected bytecode (bug)"; break; 74 case ONIGERR_DEFAULT_ENCODING_IS_NOT_SETTED: 75 p = "default multibyte-encoding is not setted"; break; 76 case ONIGERR_SPECIFIED_ENCODING_CANT_CONVERT_TO_WIDE_CHAR: 77 p = "can't convert to wide-char on specified multibyte-encoding"; break; 78 case ONIGERR_INVALID_ARGUMENT: 79 p = "invalid argument"; break; 80 case ONIGERR_END_PATTERN_AT_LEFT_BRACE: 81 p = "end pattern at left brace"; break; 82 case ONIGERR_END_PATTERN_AT_LEFT_BRACKET: 83 p = "end pattern at left bracket"; break; 84 case ONIGERR_EMPTY_CHAR_CLASS: 85 p = "empty char-class"; break; 86 case ONIGERR_PREMATURE_END_OF_CHAR_CLASS: 87 p = "premature end of char-class"; break; 88 case ONIGERR_END_PATTERN_AT_ESCAPE: 89 p = "end pattern at escape"; break; 90 case ONIGERR_END_PATTERN_AT_META: 91 p = "end pattern at meta"; break; 92 case ONIGERR_END_PATTERN_AT_CONTROL: 93 p = "end pattern at control"; break; 94 case ONIGERR_META_CODE_SYNTAX: 95 p = "invalid meta-code syntax"; break; 96 case ONIGERR_CONTROL_CODE_SYNTAX: 97 p = "invalid control-code syntax"; break; 98 case ONIGERR_CHAR_CLASS_VALUE_AT_END_OF_RANGE: 99 p = "char-class value at end of range"; break; 100 case ONIGERR_CHAR_CLASS_VALUE_AT_START_OF_RANGE: 101 p = "char-class value at start of range"; break; 102 case ONIGERR_UNMATCHED_RANGE_SPECIFIER_IN_CHAR_CLASS: 103 p = "unmatched range specifier in char-class"; break; 104 case ONIGERR_TARGET_OF_REPEAT_OPERATOR_NOT_SPECIFIED: 105 p = "target of repeat operator is not specified"; break; 106 case ONIGERR_TARGET_OF_REPEAT_OPERATOR_INVALID: 107 p = "target of repeat operator is invalid"; break; 108 case ONIGERR_NESTED_REPEAT_OPERATOR: 109 p = "nested repeat operator"; break; 110 case ONIGERR_UNMATCHED_CLOSE_PARENTHESIS: 111 p = "unmatched close parenthesis"; break; 112 case ONIGERR_END_PATTERN_WITH_UNMATCHED_PARENTHESIS: 113 p = "end pattern with unmatched parenthesis"; break; 114 case ONIGERR_END_PATTERN_IN_GROUP: 115 p = "end pattern in group"; break; 116 case ONIGERR_UNDEFINED_GROUP_OPTION: 117 p = "undefined group option"; break; 118 case ONIGERR_INVALID_POSIX_BRACKET_TYPE: 119 p = "invalid POSIX bracket type"; break; 120 case ONIGERR_INVALID_LOOK_BEHIND_PATTERN: 121 p = "invalid pattern in look-behind"; break; 122 case ONIGERR_INVALID_REPEAT_RANGE_PATTERN: 123 p = "invalid repeat range {lower,upper}"; break; 124 case ONIGERR_TOO_BIG_NUMBER: 125 p = "too big number"; break; 126 case ONIGERR_TOO_BIG_NUMBER_FOR_REPEAT_RANGE: 127 p = "too big number for repeat range"; break; 128 case ONIGERR_UPPER_SMALLER_THAN_LOWER_IN_REPEAT_RANGE: 129 p = "upper is smaller than lower in repeat range"; break; 130 case ONIGERR_EMPTY_RANGE_IN_CHAR_CLASS: 131 p = "empty range in char class"; break; 132 case ONIGERR_MISMATCH_CODE_LENGTH_IN_CLASS_RANGE: 133 p = "mismatch multibyte code length in char-class range"; break; 134 case ONIGERR_TOO_MANY_MULTI_BYTE_RANGES: 135 p = "too many multibyte code ranges are specified"; break; 136 case ONIGERR_TOO_SHORT_MULTI_BYTE_STRING: 137 p = "too short multibyte code string"; break; 138 case ONIGERR_TOO_BIG_BACKREF_NUMBER: 139 p = "too big backref number"; break; 140 case ONIGERR_INVALID_BACKREF: 141 #ifdef USE_NAMED_GROUP 142 p = "invalid backref number/name"; break; 143 #else 144 p = "invalid backref number"; break; 145 #endif 146 case ONIGERR_NUMBERED_BACKREF_OR_CALL_NOT_ALLOWED: 147 p = "numbered backref/call is not allowed. (use name)"; break; 148 case ONIGERR_TOO_BIG_WIDE_CHAR_VALUE: 149 p = "too big wide-char value"; break; 150 case ONIGERR_TOO_LONG_WIDE_CHAR_VALUE: 151 p = "too long wide-char value"; break; 152 case ONIGERR_INVALID_CODE_POINT_VALUE: 153 p = "invalid code point value"; break; 154 case ONIGERR_EMPTY_GROUP_NAME: 155 p = "group name is empty"; break; 156 case ONIGERR_INVALID_GROUP_NAME: 157 p = "invalid group name <%n>"; break; 158 case ONIGERR_INVALID_CHAR_IN_GROUP_NAME: 159 #ifdef USE_NAMED_GROUP 160 p = "invalid char in group name <%n>"; break; 161 #else 162 p = "invalid char in group number <%n>"; break; 163 #endif 164 case ONIGERR_UNDEFINED_NAME_REFERENCE: 165 p = "undefined name <%n> reference"; break; 166 case ONIGERR_UNDEFINED_GROUP_REFERENCE: 167 p = "undefined group <%n> reference"; break; 168 case ONIGERR_MULTIPLEX_DEFINED_NAME: 169 p = "multiplex defined name <%n>"; break; 170 case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL: 171 p = "multiplex definition name <%n> call"; break; 172 case ONIGERR_NEVER_ENDING_RECURSION: 173 p = "never ending recursion"; break; 174 case ONIGERR_GROUP_NUMBER_OVER_FOR_CAPTURE_HISTORY: 175 p = "group number is too big for capture history"; break; 176 case ONIGERR_INVALID_CHAR_PROPERTY_NAME: 177 p = "invalid character property name {%n}"; 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 } 191 192 static void sprint_byte(char* s, unsigned int v) 193 { 194 sprintf_s(s, sizeof("00"), "%02x", (v & 0377)); 195 } 196 197 static void sprint_byte_with_x(char* s, unsigned int v) 198 { 199 sprintf_s(s, sizeof("\\x00"), "\\x%02x", (v & 0377)); 200 } 201 202 static 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 = MIN((int)(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 30 253 254 extern int 255 #ifdef HAVE_STDARG_PROTOTYPES 256 onig_error_code_to_str(UChar* s, int code, ...) 257 #else 258 onig_error_code_to_str(s, code, va_alist) 259 UChar* s; 260 int code; 261 va_dcl 262 #endif 263 { 264 UChar *p, *q; 265 OnigErrorInfo* einfo; 266 int len, is_over; 267 UChar parbuf[MAX_ERROR_PAR_LEN]; 268 va_list vargs; 269 270 va_init_list(vargs, code); 271 272 switch (code) { 273 case ONIGERR_UNDEFINED_NAME_REFERENCE: 274 case ONIGERR_UNDEFINED_GROUP_REFERENCE: 275 case ONIGERR_MULTIPLEX_DEFINED_NAME: 276 case ONIGERR_MULTIPLEX_DEFINITION_NAME_CALL: 277 case ONIGERR_INVALID_GROUP_NAME: 278 case ONIGERR_INVALID_CHAR_IN_GROUP_NAME: 279 case ONIGERR_INVALID_CHAR_PROPERTY_NAME: 280 einfo = va_arg(vargs, OnigErrorInfo*); 281 len = to_ascii(einfo->enc, einfo->par, einfo->par_end, 282 parbuf, MAX_ERROR_PAR_LEN - 3, &is_over); 283 q = onig_error_code_to_format(code); 284 p = s; 285 while (*q != '\0') { 286 if (*q == '%') { 287 q++; 288 if (*q == 'n') { /* '%n': name */ 289 xmemcpy(p, parbuf, len); 290 p += len; 291 if (is_over != 0) { 292 xmemcpy(p, "...", 3); 293 p += 3; 294 } 295 q++; 296 } 297 else 298 goto normal_char; 299 } 300 else { 301 normal_char: 302 *p++ = *q++; 303 } 304 } 305 *p = '\0'; 306 len = (int)(p - s); 307 break; 308 309 default: 310 q = onig_error_code_to_format(code); 311 if (q == NULL) { 312 len = 0; 313 break; 314 } 315 len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, q); 316 xmemcpy(s, q, len); 317 s[len] = '\0'; 318 break; 319 } 320 321 va_end(vargs); 322 return len; 323 } 324 325 326 void 327 #ifdef HAVE_STDARG_PROTOTYPES 328 onig_snprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc, 329 UChar* pat, UChar* pat_end, const UChar *fmt, ...) 330 #else 331 onig_snprintf_with_pattern(buf, bufsize, enc, pat, pat_end, fmt, va_alist) 332 UChar buf[]; 333 int bufsize; 334 OnigEncoding enc; 335 UChar* pat; 336 UChar* pat_end; 337 const UChar *fmt; 338 va_dcl 339 #endif 340 { 341 int n, need, len; 342 UChar *p, *s, *bp; 343 UChar bs[6]; 344 va_list args; 345 346 va_init_list(args, fmt); 347 n = xvsnprintf((char* )buf, bufsize, (const char* )fmt, args); 348 va_end(args); 349 350 need = (int)(pat_end - pat) * 4 + 4; 351 352 if (n + need < bufsize) { 353 strcat_s((char* )buf, bufsize, ": /"); 354 s = buf + onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, buf); 355 356 p = pat; 357 while (p < pat_end) { 358 if (*p == '\\') { 359 *s++ = *p++; 360 len = enclen(enc, p); 361 while (len-- > 0) *s++ = *p++; 362 } 363 else if (*p == '/') { 364 *s++ = (unsigned char )'\\'; 365 *s++ = *p++; 366 } 367 else if (ONIGENC_IS_MBC_HEAD(enc, p)) { 368 len = enclen(enc, p); 369 if (ONIGENC_MBC_MINLEN(enc) == 1) { 370 while (len-- > 0) *s++ = *p++; 371 } 372 else { /* for UTF16 */ 373 int blen; 374 375 while (len-- > 0) { 376 sprint_byte_with_x((char* )bs, (unsigned int )(*p++)); 377 blen = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs); 378 bp = bs; 379 while (blen-- > 0) *s++ = *bp++; 380 } 381 } 382 } 383 else if (!ONIGENC_IS_CODE_PRINT(enc, *p) && 384 !ONIGENC_IS_CODE_SPACE(enc, *p)) { 385 sprint_byte_with_x((char* )bs, (unsigned int )(*p++)); 386 len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs); 387 bp = bs; 388 while (len-- > 0) *s++ = *bp++; 389 } 390 else { 391 *s++ = *p++; 392 } 393 } 394 395 *s++ = '/'; 396 *s = '\0'; 397 } 398 } 399
