MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regerror.c

   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  * Copyright (c) 2015, Hewlett Packard Enterprise Development, L.P.<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, "%02x", (v & 0377));
 195 }
 196
 197 static void sprint_byte_with_x(char* s, unsigned int v)
 198 {
 199   sprintf(s, "\\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     len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, q);
 312     xmemcpy(s, q, len);
 313     s[len] = '\0';
 314     break;
 315   }
 316
 317   va_end(vargs);
 318   return len;
 319 }
 320
 321
 322 void
 323 #ifdef HAVE_STDARG_PROTOTYPES
 324 onig_snprintf_with_pattern(UChar buf[], int bufsize, OnigEncoding enc,
 325                            UChar* pat, UChar* pat_end, const UChar *fmt, ...)
 326 #else
 327 onig_snprintf_with_pattern(buf, bufsize, enc, pat, pat_end, fmt, va_alist)
 328     UChar buf[];
 329     int bufsize;
 330     OnigEncoding enc;
 331     UChar* pat;
 332     UChar* pat_end;
 333     const UChar *fmt;
 334     va_dcl
 335 #endif
 336 {
 337   int n, need, len;
 338   UChar *p, *s, *bp;
 339   UChar bs[6];
 340   va_list args;
 341
 342   va_init_list(args, fmt);
 343   n = xvsnprintf((char* )buf, bufsize, (const char* )fmt, args);
 344   va_end(args);
 345
 346   need = (int)(pat_end - pat) * 4 + 4;
 347
 348   if (n + need < bufsize) {
 349     strcat_s((char* )buf, bufsize, ": /");
 350     s = buf + onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, buf);
 351
 352     p = pat;
 353     while (p < pat_end) {
 354       if (*p == '\\') {
 355         *s++ = *p++;
 356         len = enclen(enc, p);
 357         while (len-- > 0) *s++ = *p++;
 358       }
 359       else if (*p == '/') {
 360         *s++ = (unsigned char )'\\';
 361         *s++ = *p++;
 362       }
 363       else if (ONIGENC_IS_MBC_HEAD(enc, p)) {
 364         len = enclen(enc, p);
 365         if (ONIGENC_MBC_MINLEN(enc) == 1) {
 366           while (len-- > 0) *s++ = *p++;
 367         }
 368         else { /* for UTF16 */
 369           int blen;
 370
 371           while (len-- > 0) {
 372             sprint_byte_with_x((char* )bs, (unsigned int )(*p++));
 373             blen = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs);
 374             bp = bs;
 375             while (blen-- > 0) *s++ = *bp++;
 376           }
 377         }
 378       }
 379       else if (!ONIGENC_IS_CODE_PRINT(enc, *p) &&
 380                !ONIGENC_IS_CODE_SPACE(enc, *p)) {
 381         sprint_byte_with_x((char* )bs, (unsigned int )(*p++));
 382         len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, bs);
 383         bp = bs;
 384         while (len-- > 0) *s++ = *bp++;
 385       }
 386       else {
 387         *s++ = *p++;
 388       }
 389     }
 390
 391     *s++ = '/';
 392     *s   = '\0';
 393   }
 394 }