Robin Gareus
ad51c7c2ba
This is intended mainly for GNU/Linux distros who will remove GTK2 support in the near future.
365 lines
9.0 KiB
C
365 lines
9.0 KiB
C
/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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/*
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* Stripped down, converted to UTF-8 and test cases added
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*
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* Owen Taylor, 13 December 2002;
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*/
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#include "config.h"
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#include <string.h>
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#include <glib.h>
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/* We need to make sure that all constants are defined
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* to properly compile this file
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*/
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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static gunichar
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get_char (const char **str)
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{
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gunichar c = g_utf8_get_char (*str);
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*str = g_utf8_next_char (*str);
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#ifdef G_PLATFORM_WIN32
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c = g_unichar_tolower (c);
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#endif
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return c;
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}
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#if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
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#define DO_ESCAPE 0
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#else
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#define DO_ESCAPE 1
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#endif
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static gunichar
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get_unescaped_char (const char **str,
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gboolean *was_escaped)
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{
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gunichar c = get_char (str);
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*was_escaped = DO_ESCAPE && c == '\\';
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if (*was_escaped)
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c = get_char (str);
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return c;
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}
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/* Match STRING against the filename pattern PATTERN, returning zero if
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it matches, nonzero if not. */
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static gboolean
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gtk_fnmatch_intern (const char *pattern,
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const char *string,
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gboolean component_start,
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gboolean no_leading_period)
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{
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const char *p = pattern, *n = string;
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while (*p)
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{
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const char *last_n = n;
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gunichar c = get_char (&p);
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gunichar nc = get_char (&n);
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switch (c)
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{
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case '?':
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if (nc == '\0')
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return FALSE;
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else if (nc == G_DIR_SEPARATOR)
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return FALSE;
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else if (nc == '.' && component_start && no_leading_period)
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return FALSE;
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break;
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case '\\':
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if (DO_ESCAPE)
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c = get_char (&p);
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if (nc != c)
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return FALSE;
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break;
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case '*':
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if (nc == '.' && component_start && no_leading_period)
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return FALSE;
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{
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const char *last_p = p;
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for (last_p = p, c = get_char (&p);
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c == '?' || c == '*';
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last_p = p, c = get_char (&p))
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{
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if (c == '?')
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{
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if (nc == '\0')
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return FALSE;
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else if (nc == G_DIR_SEPARATOR)
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return FALSE;
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else
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{
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last_n = n; nc = get_char (&n);
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}
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}
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}
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/* If the pattern ends with wildcards, we have a
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* guaranteed match unless there is a dir separator
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* in the remainder of the string.
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*/
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if (c == '\0')
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{
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if (strchr (last_n, G_DIR_SEPARATOR) != NULL)
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return FALSE;
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else
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return TRUE;
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}
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if (DO_ESCAPE && c == '\\')
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c = get_char (&p);
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for (p = last_p; nc != '\0';)
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{
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if ((c == '[' || nc == c) &&
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gtk_fnmatch_intern (p, last_n, component_start, no_leading_period))
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return TRUE;
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component_start = (nc == G_DIR_SEPARATOR);
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last_n = n;
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nc = get_char (&n);
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}
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return FALSE;
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}
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case '[':
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{
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/* Nonzero if the sense of the character class is inverted. */
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gboolean not;
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gboolean was_escaped;
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if (nc == '\0' || nc == G_DIR_SEPARATOR)
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return FALSE;
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if (nc == '.' && component_start && no_leading_period)
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return FALSE;
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not = (*p == '!' || *p == '^');
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if (not)
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++p;
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c = get_unescaped_char (&p, &was_escaped);
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for (;;)
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{
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register gunichar cstart = c, cend = c;
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if (c == '\0')
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/* [ (unterminated) loses. */
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return FALSE;
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c = get_unescaped_char (&p, &was_escaped);
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if (!was_escaped && c == '-' && *p != ']')
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{
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cend = get_unescaped_char (&p, &was_escaped);
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if (cend == '\0')
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return FALSE;
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c = get_char (&p);
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}
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if (nc >= cstart && nc <= cend)
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goto matched;
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if (!was_escaped && c == ']')
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break;
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}
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if (!not)
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return FALSE;
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break;
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matched:;
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/* Skip the rest of the [...] that already matched. */
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/* XXX 1003.2d11 is unclear if was_escaped is right. */
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while (was_escaped || c != ']')
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{
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if (c == '\0')
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/* [... (unterminated) loses. */
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return FALSE;
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c = get_unescaped_char (&p, &was_escaped);
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}
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if (not)
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return FALSE;
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}
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break;
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default:
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if (c != nc)
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return FALSE;
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}
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component_start = (nc == G_DIR_SEPARATOR);
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}
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if (*n == '\0')
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return TRUE;
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return FALSE;
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}
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/* Match STRING against the filename pattern PATTERN, returning zero if
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* it matches, nonzero if not.
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*
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* GTK+ used to use a old version of GNU fnmatch() that was buggy
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* in various ways and didn't handle UTF-8. The following is
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* converted to UTF-8. To simplify the process of making it
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* correct, this is special-cased to the combinations of flags
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* that gtkfilesel.c uses.
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*
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* FNM_FILE_NAME - always set
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* FNM_LEADING_DIR - never set
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* FNM_NOESCAPE - set only on windows
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* FNM_CASEFOLD - set only on windows
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*/
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gboolean
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_gtk_fnmatch (const char *pattern,
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const char *string,
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gboolean no_leading_period)
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{
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return gtk_fnmatch_intern (pattern, string, TRUE, no_leading_period);
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}
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#undef FNMATCH_TEST_CASES
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#ifdef FNMATCH_TEST_CASES
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#define TEST(pat, str, no_leading_period, result) \
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g_assert (_gtk_fnmatch ((pat), (str), (no_leading_period)) == result)
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int main (int argc, char **argv)
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{
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TEST ("[a-]", "-", TRUE, TRUE);
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TEST ("a", "a", TRUE, TRUE);
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TEST ("a", "b", TRUE, FALSE);
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/* Test what ? matches */
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TEST ("?", "a", TRUE, TRUE);
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TEST ("?", ".", TRUE, FALSE);
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TEST ("a?", "a.", TRUE, TRUE);
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TEST ("a/?", "a/b", TRUE, TRUE);
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TEST ("a/?", "a/.", TRUE, FALSE);
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TEST ("?", "/", TRUE, FALSE);
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/* Test what * matches */
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TEST ("*", "a", TRUE, TRUE);
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TEST ("*", ".", TRUE, FALSE);
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TEST ("a*", "a.", TRUE, TRUE);
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TEST ("a/*", "a/b", TRUE, TRUE);
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TEST ("a/*", "a/.", TRUE, FALSE);
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TEST ("*", "/", TRUE, FALSE);
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/* Range tests */
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TEST ("[ab]", "a", TRUE, TRUE);
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TEST ("[ab]", "c", TRUE, FALSE);
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TEST ("[^ab]", "a", TRUE, FALSE);
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TEST ("[!ab]", "a", TRUE, FALSE);
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TEST ("[^ab]", "c", TRUE, TRUE);
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TEST ("[!ab]", "c", TRUE, TRUE);
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TEST ("[a-c]", "b", TRUE, TRUE);
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TEST ("[a-c]", "d", TRUE, FALSE);
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TEST ("[a-]", "-", TRUE, TRUE);
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TEST ("[]]", "]", TRUE, TRUE);
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TEST ("[^]]", "a", TRUE, TRUE);
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TEST ("[!]]", "a", TRUE, TRUE);
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/* Various unclosed ranges */
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TEST ("[ab", "a", TRUE, FALSE);
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TEST ("[a-", "a", TRUE, FALSE);
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TEST ("[ab", "c", TRUE, FALSE);
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TEST ("[a-", "c", TRUE, FALSE);
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TEST ("[^]", "a", TRUE, FALSE);
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/* Ranges and special no-wildcard matches */
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TEST ("[.]", ".", TRUE, FALSE);
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TEST ("a[.]", "a.", TRUE, TRUE);
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TEST ("a/[.]", "a/.", TRUE, FALSE);
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TEST ("[/]", "/", TRUE, FALSE);
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TEST ("[^/]", "a", TRUE, TRUE);
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/* Basic tests of * (and combinations of * and ?) */
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TEST ("a*b", "ab", TRUE, TRUE);
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TEST ("a*b", "axb", TRUE, TRUE);
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TEST ("a*b", "axxb", TRUE, TRUE);
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TEST ("a**b", "ab", TRUE, TRUE);
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TEST ("a**b", "axb", TRUE, TRUE);
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TEST ("a**b", "axxb", TRUE, TRUE);
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TEST ("a*?*b", "ab", TRUE, FALSE);
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TEST ("a*?*b", "axb", TRUE, TRUE);
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TEST ("a*?*b", "axxb", TRUE, TRUE);
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/* Test of *[range] */
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TEST ("a*[cd]", "ac", TRUE, TRUE);
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TEST ("a*[cd]", "axc", TRUE, TRUE);
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TEST ("a*[cd]", "axx", TRUE, FALSE);
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TEST ("a/[.]", "a/.", TRUE, FALSE);
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TEST ("a*[.]", "a/.", TRUE, FALSE);
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/* Test of UTF-8 */
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TEST ("ä", "ä", TRUE, TRUE); /* TEST ("ä", "ä", TRUE); */
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TEST ("?", "ä", TRUE, TRUE); /* TEST ("?", "ä", TRUE); */
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TEST ("*ö", "äö", TRUE, TRUE); /* TEST ("*ö", "äö", TRUE); */
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TEST ("*ö", "ääö", TRUE, TRUE); /* TEST ("*ö", "ääö", TRUE); */
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TEST ("[ä]", "ä", TRUE, TRUE); /* TEST ("[ä]", "ä", TRUE); */
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TEST ("[ä-ö]", "é", TRUE, TRUE); /* TEST ("[ä-ö]", "é", TRUE); */
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TEST ("[ä-ö]", "a", TRUE, FALSE); /* TEST ("[ä-ö]", "a", FALSE); */
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#ifdef DO_ESCAPE
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/* Tests of escaping */
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TEST ("\\\\", "\\", TRUE, TRUE);
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TEST ("\\?", "?", TRUE, TRUE);
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TEST ("\\?", "a", TRUE, FALSE);
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TEST ("\\*", "*", TRUE, TRUE);
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TEST ("\\*", "a", TRUE, FALSE);
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TEST ("\\[a-b]", "[a-b]", TRUE, TRUE);
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TEST ("[\\\\]", "\\", TRUE, TRUE);
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TEST ("[\\^a]", "a", TRUE, TRUE);
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TEST ("[a\\-c]", "b", TRUE, FALSE);
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TEST ("[a\\-c]", "-", TRUE, TRUE);
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TEST ("[a\\]", "a", TRUE, FALSE);
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#endif /* DO_ESCAPE */
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return 0;
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}
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#endif /* FNMATCH_TEST_CASES */
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