MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regposerr.c

   1 /**********************************************************************
   2   regposerr.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 /*#include "config.h"*/
  33 #include "onigposix.h"
  34
  35 #if 0
  36 #ifdef HAVE_STRING_H
  37 # include <string.h>
  38 #else
  39 # include <strings.h>
  40 #endif
  41 #endif
  42
  43 #if defined(__GNUC__)
  44 #  define ARG_UNUSED  __attribute__ ((unused))
  45 #else
  46 #  define ARG_UNUSED
  47 #endif
  48
  49 static char* ESTRING[] = {
  50   NULL,
  51   "failed to match",                         /* REG_NOMATCH    */
  52   "Invalid regular expression",              /* REG_BADPAT     */
  53   "invalid collating element referenced",    /* REG_ECOLLATE   */
  54   "invalid character class type referenced", /* REG_ECTYPE     */
  55   "bad backslash-escape sequence",           /* REG_EESCAPE    */
  56   "invalid back reference number",           /* REG_ESUBREG    */
  57   "imbalanced [ and ]",                      /* REG_EBRACK     */
  58   "imbalanced ( and )",                      /* REG_EPAREN     */
  59   "imbalanced { and }",                      /* REG_EBRACE     */
  60   "invalid repeat range {n,m}",              /* REG_BADBR      */
  61   "invalid range",                           /* REG_ERANGE     */
  62   "Out of memory",                           /* REG_ESPACE     */
  63   "? * + not preceded by valid regular expression", /* REG_BADRPT   */
  64
  65   /* Extended errors */
  66   "internal error",                          /* REG_EONIG_INTERNAL */
  67   "invalid wide char value",                 /* REG_EONIG_BADWC    */
  68   "invalid argument",                        /* REG_EONIG_BADARG   */
  69   "multi-thread error"                       /* REG_EONIG_THREAD   */
  70 };
  71
  72 //#include <stdio.h>
  73
  74
  75 extern size_t
  76 regerror(int posix_ecode, const regex_t* reg ARG_UNUSED, char* buf,
  77          size_t size)
  78 {
  79   char* s;
  80   char tbuf[35];
  81   size_t len;
  82
  83   if (posix_ecode > 0
  84       && posix_ecode < (int )(sizeof(ESTRING) / sizeof(ESTRING[0]))) {
  85     s = ESTRING[posix_ecode];
  86   }
  87   else if (posix_ecode == 0) {
  88     s = "";
  89   }
  90   else {
  91     sprintf(tbuf, "undefined error code (%d)", posix_ecode);
  92     s = tbuf;
  93   }
  94
  95   len = strlen_s(s, MAX_STRING_SIZE) + 1; /* use strlen() because s is ascii encoding. */
  96
  97   if (buf != NULL && size > 0) {
  98     strncpy_s(buf, size, s, size - 1);
  99     buf[size - 1] = '\0';
 100   }
 101   return len;
 102 }