1#include <string.h>
2#include <regex.h>
3#include <stdio.h>
4#include "locale_impl.h"
5
6/* Error message strings for error codes listed in `regex.h'.  This list
7   needs to be in sync with the codes listed there, naturally. */
8
9/* Converted to single string by Rich Felker to remove the need for
10 * data relocations at runtime, 27 Feb 2006. */
11
12static const char messages[] = {
13  "No error\0"
14  "No match\0"
15  "Invalid regexp\0"
16  "Unknown collating element\0"
17  "Unknown character class name\0"
18  "Trailing backslash\0"
19  "Invalid back reference\0"
20  "Missing ']'\0"
21  "Missing ')'\0"
22  "Missing '}'\0"
23  "Invalid contents of {}\0"
24  "Invalid character range\0"
25  "Out of memory\0"
26  "Repetition not preceded by valid expression\0"
27  "\0Unknown error"
28};
29
30size_t regerror(int e, const regex_t *restrict preg, char *restrict buf, size_t size)
31{
32	const char *s;
33	for (s=messages; e && *s; e--, s+=strlen(s)+1);
34	if (!*s) s++;
35	s = LCTRANS_CUR(s);
36	return 1+snprintf(buf, size, "%s", s);
37}
38