1 /**********************************************************************
2 regposerr.c - Oniguruma (regular expression library)
3 **********************************************************************/
4 /*-
5 * Copyright (c) 2002-2005 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 #include "config.h"
31 #include "onigposix.h"
32
33 #ifdef HAVE_STRING_H
34 # include <string.h>
35 #else
36 # include <strings.h>
37 #endif
38
39 static char* ESTRING[] = {
40 NULL,
41 "failed to match", /* REG_NOMATCH */
42 "Invalid regular expression", /* REG_BADPAT */
43 "invalid collating element referenced", /* REG_ECOLLATE */
44 "invalid character class type referenced", /* REG_ECTYPE */
45 "bad backslash-escape sequence", /* REG_EESCAPE */
46 "invalid back reference number", /* REG_ESUBREG */
47 "imbalanced [ and ]", /* REG_EBRACK */
48 "imbalanced ( and )", /* REG_EPAREN */
49 "imbalanced { and }", /* REG_EBRACE */
50 "invalid repeat range {n,m}", /* REG_BADBR */
51 "invalid range", /* REG_ERANGE */
52 "Out of memory", /* REG_ESPACE */
53 "? * + not preceded by valid regular expression", /* REG_BADRPT */
54
55 /* Extended errors */
56 "internal error", /* REG_EONIG_INTERNAL */
57 "invalid wide char value", /* REG_EONIG_BADWC */
58 "invalid argument", /* REG_EONIG_BADARG */
59 "multi-thread error" /* REG_EONIG_THREAD */
60 };
61
62 #include <stdio.h>
63
64
65 extern size_t
regerror(int posix_ecode,const regex_t * reg,char * buf,size_t size)66 regerror(int posix_ecode, const regex_t* reg, char* buf, size_t size)
67 {
68 char* s;
69 char tbuf[35];
70 size_t len;
71
72 if (posix_ecode > 0 && posix_ecode < sizeof(ESTRING) / sizeof(ESTRING[0])) {
73 s = ESTRING[posix_ecode];
74 }
75 else if (posix_ecode == 0) {
76 s = "";
77 }
78 else {
79 sprintf(tbuf, "undefined error code (%d)", posix_ecode);
80 s = tbuf;
81 }
82
83 len = strlen(s) + 1; /* use strlen() because s is ascii encoding. */
84
85 if (buf != NULL && size > 0) {
86 strncpy(buf, s, size - 1);
87 buf[size - 1] = '\0';
88 }
89 return len;
90 }
91
