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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 | */ |
24 | class 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 | |
90 | ?> |