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//
// "$Id$"
//
// Pattern matching routines for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2005 by Bill Spitzak and others.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library 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.
//
// Please report all bugs and problems to "fltk-bugs@fltk.org".
//
/* Adapted from Rich Salz. */
#include <FL/filename.H>
#include <ctype.h>
int fl_filename_match(const char *s, const char *p) {
int matched;
for (;;) {
switch(*p++) {
case '?' : // match any single character
if (!*s++) return 0;
break;
case '*' : // match 0-n of any characters
if (!*p) return 1; // do trailing * quickly
while (!fl_filename_match(s, p)) if (!*s++) return 0;
return 1;
case '[': { // match one character in set of form [abc-d] or [^a-b]
if (!*s) return 0;
int reverse = (*p=='^' || *p=='!'); if (reverse) p++;
matched = 0;
char last = 0;
while (*p) {
if (*p=='-' && last) {
if (*s <= *++p && *s >= last ) matched = 1;
last = 0;
} else {
if (*s == *p) matched = 1;
}
last = *p++;
if (*p==']') break;
}
if (matched == reverse) return 0;
s++; p++;}
break;
case '{' : // {pattern1|pattern2|pattern3}
NEXTCASE:
if (fl_filename_match(s,p)) return 1;
for (matched = 0;;) {
switch (*p++) {
case '\\': if (*p) p++; break;
case '{': matched++; break;
case '}': if (!matched--) return 0; break;
case '|': case ',': if (matched==0) goto NEXTCASE;
case 0: return 0;
}
}
case '|': // skip rest of |pattern|pattern} when called recursively
case ',':
for (matched = 0; *p && matched >= 0;) {
switch (*p++) {
case '\\': if (*p) p++; break;
case '{': matched++; break;
case '}': matched--; break;
}
}
break;
case '}':
break;
case 0: // end of pattern
return !*s;
case '\\': // quote next character
if (*p) p++;
default:
if (tolower(*s) != tolower(*(p-1))) return 0;
s++;
break;
}
}
}
//
// End of "$Id$".
//
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