2 * Copyright (c) 1992, 1993, 1994 Henry Spencer.
3 * Copyright (c) 1992, 1993, 1994
4 * The Regents of the University of California. All rights reserved.
6 * This code is derived from software contributed to Berkeley by
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)regerror.c 8.4 (Berkeley) 3/20/94
36 #if defined(LIBC_SCCS) && !defined(lint)
37 static char sccsid[] = "@(#)regerror.c 8.4 (Berkeley) 3/20/94";
38 #endif /* LIBC_SCCS and not lint */
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD: src/lib/libc/regex/regerror.c,v 1.11 2007/06/11 03:05:54 delphij Exp $");
42 #include <sys/types.h>
51 /* ========= begin header generated by ./mkh ========= */
56 /* === regerror.c === */
57 static char *regatoi(const regex_t *preg, char *localbuf);
62 /* ========= end header generated by ./mkh ========= */
64 = #define REG_NOMATCH 1
65 = #define REG_BADPAT 2
66 = #define REG_ECOLLATE 3
67 = #define REG_ECTYPE 4
68 = #define REG_EESCAPE 5
69 = #define REG_ESUBREG 6
70 = #define REG_EBRACK 7
71 = #define REG_EPAREN 8
72 = #define REG_EBRACE 9
73 = #define REG_BADBR 10
74 = #define REG_ERANGE 11
75 = #define REG_ESPACE 12
76 = #define REG_BADRPT 13
77 = #define REG_EMPTY 14
78 = #define REG_ASSERT 15
79 = #define REG_INVARG 16
80 = #define REG_ILLSEQ 17
81 = #define REG_ATOI 255 // convert name to number (!)
82 = #define REG_ITOA 0400 // convert number to name (!)
86 #ifdef __CYGWIN__ /* Avoid whining compiler */
94 {REG_NOMATCH, "REG_NOMATCH", "regexec() failed to match"},
95 {REG_BADPAT, "REG_BADPAT", "invalid regular expression"},
96 {REG_ECOLLATE, "REG_ECOLLATE", "invalid collating element"},
97 {REG_ECTYPE, "REG_ECTYPE", "invalid character class"},
98 {REG_EESCAPE, "REG_EESCAPE", "trailing backslash (\\)"},
99 {REG_ESUBREG, "REG_ESUBREG", "invalid backreference number"},
100 {REG_EBRACK, "REG_EBRACK", "brackets ([ ]) not balanced"},
101 {REG_EPAREN, "REG_EPAREN", "parentheses not balanced"},
102 {REG_EBRACE, "REG_EBRACE", "braces not balanced"},
103 {REG_BADBR, "REG_BADBR", "invalid repetition count(s)"},
104 {REG_ERANGE, "REG_ERANGE", "invalid character range"},
105 {REG_ESPACE, "REG_ESPACE", "out of memory"},
106 {REG_BADRPT, "REG_BADRPT", "repetition-operator operand invalid"},
107 {REG_EMPTY, "REG_EMPTY", "empty (sub)expression"},
108 {REG_ASSERT, "REG_ASSERT", "\"can't happen\" -- you found a bug"},
109 {REG_INVARG, "REG_INVARG", "invalid argument to regex routine"},
110 {REG_ILLSEQ, "REG_ILLSEQ", "illegal byte sequence"},
111 {0, "", "*** unknown regexp error code ***"}
115 - regerror - the interface to error numbers
116 = extern size_t regerror(int, const regex_t *, char *, size_t);
120 regerror(int errcode,
121 const regex_t * __restrict preg,
122 char * __restrict errbuf,
127 int target = errcode &~ REG_ITOA;
128 #ifdef __CYGWIN__ /* Avoid whining compiler */
135 if (errcode == REG_ATOI)
136 s = regatoi(preg, convbuf);
138 for (r = rerrs; r->code != 0; r++)
139 if (r->code == target)
142 if (errcode®_ITOA) {
144 (void) strcpy(convbuf, r->name);
146 sprintf(convbuf, "REG_0x%x", target);
147 assert(strlen(convbuf) < sizeof(convbuf));
154 if (errbuf_size > 0) {
155 if (errbuf_size > len)
156 (void) strcpy(errbuf, s);
158 (void) strncpy(errbuf, s, errbuf_size-1);
159 errbuf[errbuf_size-1] = '\0';
167 - regatoi - internal routine to implement REG_ATOI
168 == static char *regatoi(const regex_t *preg, char *localbuf);
171 regatoi(const regex_t *preg, char *localbuf)
175 for (r = rerrs; r->code != 0; r++)
176 if (strcmp(r->name, preg->re_endp) == 0)
179 #ifdef __CYGWIN__ /* Avoid whining compiler */
181 static char null[] = "0";
188 sprintf(localbuf, "%d", r->code);