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6855525e JL |
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 .= $flag; | |
51 | } | |
52 | } | |
53 | ||
54 | ||
55 | /** return all active flags | |
56 | * @return array | |
57 | */ | |
58 | ||
59 | function as_array() | |
60 | { | |
61 | if ($this->value) { | |
62 | $arr = explode($this->sep, $this->value); | |
63 | } else { | |
64 | $arr = array(); | |
65 | } | |
66 | return $arr; | |
67 | } | |
68 | ||
69 | ||
70 | /** test if a flag is set | |
71 | * @param $flag XXX | |
72 | * @return 1 || 0 | |
73 | */ | |
74 | function hasflag($flag) { | |
75 | $tok = strtok($this->value,$this->sep); | |
76 | while ($tok) { | |
77 | if ($tok==$flag) return 1; | |
78 | $tok = strtok($this->sep); | |
79 | } | |
80 | return 0; | |
81 | } | |
82 | ||
83 | ||
84 | /** remove flag | |
85 | * @param $flag XXX | |
86 | * @return VOID | |
87 | */ | |
88 | function rmflag($flag) { | |
89 | if (!$flag) return; | |
90 | $newvalue = ""; | |
91 | $tok = strtok($this->value,$this->sep); | |
92 | while ($tok) { | |
93 | if ($tok!=$flag) { | |
94 | if ($newvalue) | |
95 | $newvalue .= $this->sep; | |
96 | $newvalue .= $tok; | |
97 | } | |
98 | $tok = strtok($this->sep); | |
99 | } | |
100 | $this->value=$newvalue; | |
101 | } | |
102 | ||
103 | } | |
104 | ||
105 | ?> |