MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regposerr.c

   1 /**********************************************************************
   2   regposerr.c - Oniguruma (regular expression library)
   3 **********************************************************************/
   4 /*-
   5  * Copyright (c) 2002-2018  K.Kosako  <sndgk393 AT ybb DOT ne DOT jp>
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 /* Can't include regint.h etc.. for conflict of regex_t.
  31    Define ONIGURUMA_EXPORT here for onigposix.h.
  32  */
  33 #ifndef ONIGURUMA_EXPORT
  34 #define ONIGURUMA_EXPORT
  35 #endif
  36
  37 //#include "config.h"
  38 #include "onigposix.h"
  39
  40 #if 0
  41 #ifdef HAVE_STRING_H
  42 # include <string.h>
  43 #else
  44 # include <strings.h>
  45 #endif
  46 #endif
  47
  48 #if defined(__GNUC__)
  49 #  define ARG_UNUSED  __attribute__ ((unused))
  50 #else
  51 #  define ARG_UNUSED
  52 #endif
  53
  54 #if defined(_WIN32) && !defined(__GNUC__)
  55 #define xsnprintf   sprintf_s
  56 #define xstrncpy(dest,src,size)   strncpy_s(dest,size,src,_TRUNCATE)
  57 #else
  58 #define xsnprintf   snprintf
  59 #define xstrncpy    strncpy
  60 #endif
  61
  62 static char* ESTRING[] = {
  63   NULL,
  64   "failed to match",                         /* REG_NOMATCH    */
  65   "Invalid regular expression",              /* REG_BADPAT     */
  66   "invalid collating element referenced",    /* REG_ECOLLATE   */
  67   "invalid character class type referenced", /* REG_ECTYPE     */
  68   "bad backslash-escape sequence",           /* REG_EESCAPE    */
  69   "invalid back reference number",           /* REG_ESUBREG    */
  70   "imbalanced [ and ]",                      /* REG_EBRACK     */
  71   "imbalanced ( and )",                      /* REG_EPAREN     */
  72   "imbalanced { and }",                      /* REG_EBRACE     */
  73   "invalid repeat range {n,m}",              /* REG_BADBR      */
  74   "invalid range",                           /* REG_ERANGE     */
  75   "Out of memory",                           /* REG_ESPACE     */
  76   "? * + not preceded by valid regular expression", /* REG_BADRPT   */
  77
  78   /* Extended errors */
  79   "internal error",                          /* REG_EONIG_INTERNAL */
  80   "invalid wide char value",                 /* REG_EONIG_BADWC    */
  81   "invalid argument"                         /* REG_EONIG_BADARG   */
  82 };
  83
  84 //#include <stdio.h>
  85
  86
  87 extern size_t
  88 regerror(int posix_ecode, const regex_t* reg ARG_UNUSED, char* buf,
  89          size_t size)
  90 {
  91   char* s;
  92   char tbuf[35];
  93   size_t len;
  94
  95   if (posix_ecode > 0
  96       && posix_ecode < (int )(sizeof(ESTRING) / sizeof(ESTRING[0]))) {
  97     s = ESTRING[posix_ecode];
  98   }
  99   else if (posix_ecode == 0) {
 100     s = "";
 101   }
 102   else {
 103     sprintf_s(tbuf, sizeof(tbuf), "undefined error code (%d)", posix_ecode);
 104     s = tbuf;
 105   }
 106
 107   len = strlen_s(s, MAX_STRING_SIZE) + 1; /* use strlen() because s is ascii encoding. */
 108
 109   if (buf != NULL && size > 0) {
 110     strncpy_s(buf, size, s, size - 1);
 111     buf[size - 1] = '\0';
 112   }
 113   return len;
 114 }