/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
/*
* Stripped down, converted to UTF-8 and test cases added
*
* Owen Taylor, 13 December 2002;
*/
#include "config.h"
#include <string.h>
#include <glib.h>
/* We need to make sure that all constants are defined
* to properly compile this file
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
static gunichar
get_char (const char **str)
{
gunichar c = g_utf8_get_char (*str);
*str = g_utf8_next_char (*str);
#ifdef G_PLATFORM_WIN32
c = g_unichar_tolower (c);
#endif
return c;
}
#if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
#define DO_ESCAPE 0
#else
#define DO_ESCAPE 1
#endif
static gunichar
get_unescaped_char (const char **str,
gboolean *was_escaped)
{
gunichar c = get_char (str);
*was_escaped = DO_ESCAPE && c == '\\';
if (*was_escaped)
c = get_char (str);
return c;
}
/* Match STRING against the filename pattern PATTERN, returning zero if
it matches, nonzero if not. */
static gboolean
gtk_fnmatch_intern (const char *pattern,
const char *string,
gboolean component_start,
gboolean no_leading_period)
{
const char *p = pattern, *n = string;
while (*p)
{
const char *last_n = n;
gunichar c = get_char (&p);
gunichar nc = get_char (&n);
switch (c)
{
case '?':
if (nc == '\0')
return FALSE;
else if (nc == G_DIR_SEPARATOR)
return FALSE;
else if (nc == '.' && component_start && no_leading_period)
return FALSE;
break;
case '\\':
if (DO_ESCAPE)
c = get_char (&p);
if (nc != c)
return FALSE;
break;
case '*':
if (nc == '.' && component_start && no_leading_period)
return FALSE;
{
const char *last_p = p;
for (last_p = p, c = get_char (&p);
c == '?' || c == '*';
last_p = p, c = get_char (&p))
{
if (c == '?')
{
if (nc == '\0')
return FALSE;
else if (nc == G_DIR_SEPARATOR)
return FALSE;
else
{
last_n = n; nc = get_char (&n);
}
}
}
/* If the pattern ends with wildcards, we have a
* guaranteed match unless there is a dir separator
* in the remainder of the string.
*/
if (c == '\0')
{
if (strchr (last_n, G_DIR_SEPARATOR) != NULL)
return FALSE;
else
return TRUE;
}
if (DO_ESCAPE && c == '\\')
c = get_char (&p);
for (p = last_p; nc != '\0';)
{
if ((c == '[' || nc == c) &&
gtk_fnmatch_intern (p, last_n, component_start, no_leading_period))
return TRUE;
component_start = (nc == G_DIR_SEPARATOR);
last_n = n;
nc = get_char (&n);
}
return FALSE;
}
case '[':
{
/* Nonzero if the sense of the character class is inverted. */
gboolean not;
gboolean was_escaped;
if (nc == '\0' || nc == G_DIR_SEPARATOR)
return FALSE;
if (nc == '.' && component_start && no_leading_period)
return FALSE;
not = (*p == '!' || *p == '^');
if (not)
++p;
c = get_unescaped_char (&p, &was_escaped);
for (;;)
{
register gunichar cstart = c, cend = c;
if (c == '\0')
/* [ (unterminated) loses. */
return FALSE;
c = get_unescaped_char (&p, &was_escaped);
if (!was_escaped && c == '-' && *p != ']')
{
cend = get_unescaped_char (&p, &was_escaped);
if (cend == '\0')
return FALSE;
c = get_char (&p);
}
if (nc >= cstart && nc <= cend)
goto matched;
if (!was_escaped && c == ']')
break;
}
if (!not)
return FALSE;
break;
matched:;
/* Skip the rest of the [...] that already matched. */
/* XXX 1003.2d11 is unclear if was_escaped is right. */
while (was_escaped || c != ']')
{
if (c == '\0')
/* [... (unterminated) loses. */
return FALSE;
c = get_unescaped_char (&p, &was_escaped);
}
if (not)
return FALSE;
}
break;
default:
if (c != nc)
return FALSE;
}
component_start = (nc == G_DIR_SEPARATOR);
}
if (*n == '\0')
return TRUE;
return FALSE;
}
/* Match STRING against the filename pattern PATTERN, returning zero if
* it matches, nonzero if not.
*
* GTK+ used to use a old version of GNU fnmatch() that was buggy
* in various ways and didn't handle UTF-8. The following is
* converted to UTF-8. To simplify the process of making it
* correct, this is special-cased to the combinations of flags
* that gtkfilesel.c uses.
*
* FNM_FILE_NAME - always set
* FNM_LEADING_DIR - never set
* FNM_NOESCAPE - set only on windows
* FNM_CASEFOLD - set only on windows
*/
gboolean
_gtk_fnmatch (const char *pattern,
const char *string,
gboolean no_leading_period)
{
return gtk_fnmatch_intern (pattern, string, TRUE, no_leading_period);
}
#undef FNMATCH_TEST_CASES
#ifdef FNMATCH_TEST_CASES
#define TEST(pat, str, no_leading_period, result) \
g_assert (_gtk_fnmatch ((pat), (str), (no_leading_period)) == result)
int main (int argc, char **argv)
{
TEST ("[a-]", "-", TRUE, TRUE);
TEST ("a", "a", TRUE, TRUE);
TEST ("a", "b", TRUE, FALSE);
/* Test what ? matches */
TEST ("?", "a", TRUE, TRUE);
TEST ("?", ".", TRUE, FALSE);
TEST ("a?", "a.", TRUE, TRUE);
TEST ("a/?", "a/b", TRUE, TRUE);
TEST ("a/?", "a/.", TRUE, FALSE);
TEST ("?", "/", TRUE, FALSE);
/* Test what * matches */
TEST ("*", "a", TRUE, TRUE);
TEST ("*", ".", TRUE, FALSE);
TEST ("a*", "a.", TRUE, TRUE);
TEST ("a/*", "a/b", TRUE, TRUE);
TEST ("a/*", "a/.", TRUE, FALSE);
TEST ("*", "/", TRUE, FALSE);
/* Range tests */
TEST ("[ab]", "a", TRUE, TRUE);
TEST ("[ab]", "c", TRUE, FALSE);
TEST ("[^ab]", "a", TRUE, FALSE);
TEST ("[!ab]", "a", TRUE, FALSE);
TEST ("[^ab]", "c", TRUE, TRUE);
TEST ("[!ab]", "c", TRUE, TRUE);
TEST ("[a-c]", "b", TRUE, TRUE);
TEST ("[a-c]", "d", TRUE, FALSE);
TEST ("[a-]", "-", TRUE, TRUE);
TEST ("[]]", "]", TRUE, TRUE);
TEST ("[^]]", "a", TRUE, TRUE);
TEST ("[!]]", "a", TRUE, TRUE);
/* Various unclosed ranges */
TEST ("[ab", "a", TRUE, FALSE);
TEST ("[a-", "a", TRUE, FALSE);
TEST ("[ab", "c", TRUE, FALSE);
TEST ("[a-", "c", TRUE, FALSE);
TEST ("[^]", "a", TRUE, FALSE);
/* Ranges and special no-wildcard matches */
TEST ("[.]", ".", TRUE, FALSE);
TEST ("a[.]", "a.", TRUE, TRUE);
TEST ("a/[.]", "a/.", TRUE, FALSE);
TEST ("[/]", "/", TRUE, FALSE);
TEST ("[^/]", "a", TRUE, TRUE);
/* Basic tests of * (and combinations of * and ?) */
TEST ("a*b", "ab", TRUE, TRUE);
TEST ("a*b", "axb", TRUE, TRUE);
TEST ("a*b", "axxb", TRUE, TRUE);
TEST ("a**b", "ab", TRUE, TRUE);
TEST ("a**b", "axb", TRUE, TRUE);
TEST ("a**b", "axxb", TRUE, TRUE);
TEST ("a*?*b", "ab", TRUE, FALSE);
TEST ("a*?*b", "axb", TRUE, TRUE);
TEST ("a*?*b", "axxb", TRUE, TRUE);
/* Test of *[range] */
TEST ("a*[cd]", "ac", TRUE, TRUE);
TEST ("a*[cd]", "axc", TRUE, TRUE);
TEST ("a*[cd]", "axx", TRUE, FALSE);
TEST ("a/[.]", "a/.", TRUE, FALSE);
TEST ("a*[.]", "a/.", TRUE, FALSE);
/* Test of UTF-8 */
TEST ("ä", "ä", TRUE, TRUE); /* TEST ("ä", "ä", TRUE); */
TEST ("?", "ä", TRUE, TRUE); /* TEST ("?", "ä", TRUE); */
TEST ("*ö", "äö", TRUE, TRUE); /* TEST ("*ö", "äö", TRUE); */
TEST ("*ö", "ääö", TRUE, TRUE); /* TEST ("*ö", "ääö", TRUE); */
TEST ("[ä]", "ä", TRUE, TRUE); /* TEST ("[ä]", "ä", TRUE); */
TEST ("[ä-ö]", "é", TRUE, TRUE); /* TEST ("[ä-ö]", "é", TRUE); */
TEST ("[ä-ö]", "a", TRUE, FALSE); /* TEST ("[ä-ö]", "a", FALSE); */
#ifdef DO_ESCAPE
/* Tests of escaping */
TEST ("\\\\", "\\", TRUE, TRUE);
TEST ("\\?", "?", TRUE, TRUE);
TEST ("\\?", "a", TRUE, FALSE);
TEST ("\\*", "*", TRUE, TRUE);
TEST ("\\*", "a", TRUE, FALSE);
TEST ("\\[a-b]", "[a-b]", TRUE, TRUE);
TEST ("[\\\\]", "\\", TRUE, TRUE);
TEST ("[\\^a]", "a", TRUE, TRUE);
TEST ("[a\\-c]", "b", TRUE, FALSE);
TEST ("[a\\-c]", "-", TRUE, TRUE);
TEST ("[a\\]", "a", TRUE, FALSE);
#endif /* DO_ESCAPE */
return 0;
}
#endif /* FNMATCH_TEST_CASES */