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[platal.git] / classes / flagset.php
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7cca6eec 1<?php
2/*
3 * Copyright (C) 2003-2004 Polytechnique.org
4 * http://opensource.polytechnique.org/
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21
22/** class for describing flags
23 */
24class flagset {
25 /** string that holds the flagset */
26 var $value;
27
28 /** the boundary between flags */
29 var $sep = ",";
30
31
32 /** set flag
33 * @param $flags services FROM coupures
34 * @return VOID
35 */
36 function flagset( $flags="" ) {
37 $this->value = $flags;
38 }
39
40
41 /** add flag
42 * @param $flag XXX
43 * @return VOID
44 */
45 function addflag($flag) {
46 if (!$flag) return;
47 if (!$this->hasflag($flag)) {
48 if ($this->value)
49 $this->value .= $this->sep;
50 $this->value .= $flag;
51 }
52 }
53
54
55 /** test si flag ou pas
56 * @param $flag XXX
57 * @return 1 || 0
58 */
59 function hasflag($flag) {
60 $tok = strtok($this->value,$this->sep);
61 while ($tok) {
62 if ($tok==$flag) return 1;
63 $tok = strtok($this->sep);
64 }
65 return 0;
66 }
67
68
69 /** remove flag
70 * @param $flag XXX
71 * @return VOID
72 */
73 function rmflag($flag) {
74 if (!$flag) return;
75 $newvalue = "";
76 $tok = strtok($this->value,$this->sep);
77 while ($tok) {
78 if ($tok!=$flag) {
79 if ($newvalue)
80 $newvalue .= $this->sep;
81 $newvalue .= $tok;
82 }
83 $tok = strtok($this->sep);
84 }
85 $this->value=$newvalue;
86 }
87
88}
89
a7de4ef7 90// vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
7cca6eec 91?>