1*63d4abf0Sagc /*
2*63d4abf0Sagc tre_regerror.c - POSIX tre_regerror() implementation for TRE.
3*63d4abf0Sagc
4*63d4abf0Sagc This software is released under a BSD-style license.
5*63d4abf0Sagc See the file LICENSE for details and copyright.
6*63d4abf0Sagc
7*63d4abf0Sagc */
8*63d4abf0Sagc
9*63d4abf0Sagc #ifdef HAVE_CONFIG_H
10*63d4abf0Sagc #include <config.h>
11*63d4abf0Sagc #endif /* HAVE_CONFIG_H */
12*63d4abf0Sagc
13*63d4abf0Sagc #include <string.h>
14*63d4abf0Sagc #ifdef HAVE_WCHAR_H
15*63d4abf0Sagc #include <wchar.h>
16*63d4abf0Sagc #endif /* HAVE_WCHAR_H */
17*63d4abf0Sagc #ifdef HAVE_WCTYPE_H
18*63d4abf0Sagc #include <wctype.h>
19*63d4abf0Sagc #endif /* HAVE_WCTYPE_H */
20*63d4abf0Sagc
21*63d4abf0Sagc #include "tre-internal.h"
22*63d4abf0Sagc #include "tre.h"
23*63d4abf0Sagc
24*63d4abf0Sagc #ifdef HAVE_GETTEXT
25*63d4abf0Sagc #include <libintl.h>
26*63d4abf0Sagc #else
27*63d4abf0Sagc #define dgettext(p, s) s
28*63d4abf0Sagc #define gettext(s) s
29*63d4abf0Sagc #endif
30*63d4abf0Sagc
31*63d4abf0Sagc #define _(String) dgettext(PACKAGE, String)
32*63d4abf0Sagc #define gettext_noop(String) String
33*63d4abf0Sagc
34*63d4abf0Sagc /* Error message strings for error codes listed in `tre.h'. This list
35*63d4abf0Sagc needs to be in sync with the codes listed there, naturally. */
36*63d4abf0Sagc static const char *tre_error_messages[] =
37*63d4abf0Sagc { gettext_noop("No error"), /* REG_OK */
38*63d4abf0Sagc gettext_noop("No match"), /* REG_NOMATCH */
39*63d4abf0Sagc gettext_noop("Invalid regexp"), /* REG_BADPAT */
40*63d4abf0Sagc gettext_noop("Unknown collating element"), /* REG_ECOLLATE */
41*63d4abf0Sagc gettext_noop("Unknown character class name"), /* REG_ECTYPE */
42*63d4abf0Sagc gettext_noop("Trailing backslash"), /* REG_EESCAPE */
43*63d4abf0Sagc gettext_noop("Invalid back reference"), /* REG_ESUBREG */
44*63d4abf0Sagc gettext_noop("Missing ']'"), /* REG_EBRACK */
45*63d4abf0Sagc gettext_noop("Missing ')'"), /* REG_EPAREN */
46*63d4abf0Sagc gettext_noop("Missing '}'"), /* REG_EBRACE */
47*63d4abf0Sagc gettext_noop("Invalid contents of {}"), /* REG_BADBR */
48*63d4abf0Sagc gettext_noop("Invalid character range"), /* REG_ERANGE */
49*63d4abf0Sagc gettext_noop("Out of memory"), /* REG_ESPACE */
50*63d4abf0Sagc gettext_noop("Invalid use of repetition operators") /* REG_BADRPT */
51*63d4abf0Sagc };
52*63d4abf0Sagc
53*63d4abf0Sagc size_t
tre_regerror(int errcode,const regex_t * preg,char * errbuf,size_t errbuf_size)54*63d4abf0Sagc tre_regerror(int errcode, const regex_t *preg, char *errbuf, size_t errbuf_size)
55*63d4abf0Sagc {
56*63d4abf0Sagc const char *err;
57*63d4abf0Sagc size_t err_len;
58*63d4abf0Sagc
59*63d4abf0Sagc /*LINTED*/(void)&preg;
60*63d4abf0Sagc if (errcode >= 0
61*63d4abf0Sagc && errcode < (int)(sizeof(tre_error_messages)
62*63d4abf0Sagc / sizeof(*tre_error_messages)))
63*63d4abf0Sagc err = gettext(tre_error_messages[errcode]);
64*63d4abf0Sagc else
65*63d4abf0Sagc err = gettext("Unknown error");
66*63d4abf0Sagc
67*63d4abf0Sagc err_len = strlen(err) + 1;
68*63d4abf0Sagc if (errbuf_size > 0 && errbuf != NULL)
69*63d4abf0Sagc {
70*63d4abf0Sagc if (err_len > errbuf_size)
71*63d4abf0Sagc {
72*63d4abf0Sagc strncpy(errbuf, err, errbuf_size - 1);
73*63d4abf0Sagc errbuf[errbuf_size - 1] = '\0';
74*63d4abf0Sagc }
75*63d4abf0Sagc else
76*63d4abf0Sagc {
77*63d4abf0Sagc strcpy(errbuf, err);
78*63d4abf0Sagc }
79*63d4abf0Sagc }
80*63d4abf0Sagc return err_len;
81*63d4abf0Sagc }
82*63d4abf0Sagc
83*63d4abf0Sagc /* EOF */
84