import of Diogenes 0.9.18

[diogenes.git] / include / diogenes / diogenes.flagset.inc.php

diff --git a/include/diogenes/diogenes.flagset.inc.php b/include/diogenes/diogenes.flagset.inc.php
new file mode 100644 (file)
index 0000000..126dc6b
--- /dev/null
+++ b/include/diogenes/diogenes.flagset.inc.php
@@ -0,0 +1,105 @@
+<?php
+/*
+ * Copyright (C) 2003-2004 Polytechnique.org
+ * http://opensource.polytechnique.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+/** class for describing flags
+ */
+class flagset {
+  /** string that holds the flagset */
+  var $value;
+
+  /** the boundary between flags */
+  var $sep = ",";
+
+
+  /** set flag
+   * @param $flags services FROM coupures
+   * @return VOID
+   */
+  function flagset( $flags="" ) {
+    $this->value = $flags;
+  }
+
+
+  /** add flag
+   * @param $flag XXX
+   * @return VOID
+   */
+  function addflag($flag) {
+    if (!$flag) return;
+    if (!$this->hasflag($flag)) {
+      if ($this->value)
+        $this->value .= $this->sep;
+      $this->value .= $flag;
+    }
+  }
+
+  
+  /** return all active flags
+   * @return array
+   */
+
+  function as_array()
+  {
+    if ($this->value) {
+      $arr = explode($this->sep, $this->value);
+    } else {
+      $arr = array();
+    } 
+    return $arr;
+  }
+  
+  
+  /** test if a flag is set
+   * @param $flag XXX
+   * @return 1 || 0
+   */
+  function hasflag($flag) {
+    $tok = strtok($this->value,$this->sep);
+    while ($tok) {
+      if ($tok==$flag) return 1;
+      $tok = strtok($this->sep);
+    }
+    return 0;
+  }
+
+
+  /** remove flag
+   * @param $flag XXX
+   * @return VOID
+   */
+  function rmflag($flag) {
+    if (!$flag) return;
+    $newvalue = "";
+    $tok = strtok($this->value,$this->sep);
+    while ($tok) {
+      if ($tok!=$flag) {
+        if ($newvalue)
+         $newvalue .= $this->sep;
+        $newvalue .= $tok;
+      }
+      $tok = strtok($this->sep);
+    }
+    $this->value=$newvalue;
+  }
+
+} 
+
+?>