--- nfo/php/libs/net.php.smarty/plugins/function.cycle.php	2002/10/09 00:53:36	1.1
+++ nfo/php/libs/net.php.smarty/plugins/function.cycle.php	2004/06/16 21:58:16	1.2
@@ -1,101 +1,100 @@
 <?php
-
-/*
+/**
  * Smarty plugin
- * -------------------------------------------------------------
- * Type:     function
- * Name:     cycle
- * Version:  1.3
- * Date:     May 3, 2002
- * Author:	 Monte Ohrt <monte@ispi.net>
- * Credits:  Mark Priatel <mpriatel@rogers.com>
- *           Gerard <gerard@interfold.com>
- *           Jason Sweat <jsweat_php@yahoo.com>
- * Purpose:  cycle through given values
- * Input:    name = name of cycle (optional)
- *           values = comma separated list of values to cycle,
+ * @package Smarty
+ * @subpackage plugins
+ */
+
+/**
+ * Smarty {cycle} function plugin
+ *
+ * Type:     function<br>
+ * Name:     cycle<br>
+ * Date:     May 3, 2002<br>
+ * Purpose:  cycle through given values<br>
+ * Input:
+ *         - name = name of cycle (optional)
+ *         - values = comma separated list of values to cycle,
  *                    or an array of values to cycle
  *                    (this can be left out for subsequent calls)
- *
- *           reset = boolean - resets given var to true
- *			 print = boolean - print var or not. default is true
- *           advance = boolean - whether or not to advance the cycle
- *           delimiter = the value delimiter, default is ","
- *           assign = boolean, assigns to template var instead of
+ *         - reset = boolean - resets given var to true
+ *         - print = boolean - print var or not. default is true
+ *         - advance = boolean - whether or not to advance the cycle
+ *         - delimiter = the value delimiter, default is ","
+ *         - assign = boolean, assigns to template var instead of
  *                    printed.
- * 
- * Examples: {cycle values="#eeeeee,#d0d0d0d"}
- *           {cycle name=row values="one,two,three" reset=true}
- *           {cycle name=row}
- * -------------------------------------------------------------
+ *
+ * Examples:<br>
+ * <pre>
+ * {cycle values="#eeeeee,#d0d0d0d"}
+ * {cycle name=row values="one,two,three" reset=true}
+ * {cycle name=row}
+ * </pre>
+ * @link http://smarty.php.net/manual/en/language.function.cycle.php {cycle}
+ *       (Smarty online manual)
+ * @author Monte Ohrt <monte@ispi.net>
+ * @author credit to Mark Priatel <mpriatel@rogers.com>
+ * @author credit to Gerard <gerard@interfold.com>
+ * @author credit to Jason Sweat <jsweat_php@yahoo.com>
+ * @version  1.3
+ * @param array
+ * @param Smarty
+ * @return string|null
  */
 function smarty_function_cycle($params, &$smarty)
 {
-	static $cycle_vars;
-	
-    extract($params);
-
-    if (empty($name)) {
-        $name = 'default';
-    }
-
-    if (!isset($print)) {
-        $print = true;
-    }
-
-    if (!isset($advance)) {
-        $advance = true;		
-    }	
-
-    if (!isset($reset)) {
-        $reset = false;		
-    }		
-			
+    static $cycle_vars;
+    
+    $name = (empty($params['name'])) ? 'default' : $params['name'];
+    $print = (isset($params['print'])) ? (bool)$params['print'] : true;
+    $advance = (isset($params['advance'])) ? (bool)$params['advance'] : true;
+    $reset = (isset($params['reset'])) ? (bool)$params['reset'] : false;
+            
     if (!in_array('values', array_keys($params))) {
-		if(!isset($cycle_vars[$name]['values'])) {
-        	$smarty->trigger_error("cycle: missing 'values' parameter");
-        	return;
-		}
+        if(!isset($cycle_vars[$name]['values'])) {
+            $smarty->trigger_error("cycle: missing 'values' parameter");
+            return;
+        }
     } else {
-		if(isset($cycle_vars[$name]['values'])
-			&& $cycle_vars[$name]['values'] != $values ) {
-			$cycle_vars[$name]['index'] = 0;
-		}
-		$cycle_vars[$name]['values'] = $values;
-	}
+        if(isset($cycle_vars[$name]['values'])
+            && $cycle_vars[$name]['values'] != $params['values'] ) {
+            $cycle_vars[$name]['index'] = 0;
+        }
+        $cycle_vars[$name]['values'] = $params['values'];
+    }
 
-    if (isset($delimiter)) {
-		$cycle_vars[$name]['delimiter'] = $delimiter;
-    } elseif (!isset($cycle_vars[$name]['delimiter'])) {
-		$cycle_vars[$name]['delimiter'] = ',';		
-	}
-	
-	if(!is_array($cycle_vars[$name]['values'])) {
-		$cycle_array = explode($cycle_vars[$name]['delimiter'],$cycle_vars[$name]['values']);
-	} else {
-		$cycle_array = $cycle_vars[$name]['values'];	
-	}
-	
-	if(!isset($cycle_vars[$name]['index']) || $reset ) {
-		$cycle_vars[$name]['index'] = 0;
-	}
-	
-    if (isset($assign)) {
+    $cycle_vars[$name]['delimiter'] = (isset($params['delimiter'])) ? $params['delimiter'] : ',';
+    
+    if(is_array($cycle_vars[$name]['values'])) {
+        $cycle_array = $cycle_vars[$name]['values'];
+    } else {
+        $cycle_array = explode($cycle_vars[$name]['delimiter'],$cycle_vars[$name]['values']);
+    }
+    
+    if(!isset($cycle_vars[$name]['index']) || $reset ) {
+        $cycle_vars[$name]['index'] = 0;
+    }
+    
+    if (isset($params['assign'])) {
         $print = false;
-        $smarty->assign($assign, $cycle_array[$cycle_vars[$name]['index']]);
+        $smarty->assign($params['assign'], $cycle_array[$cycle_vars[$name]['index']]);
+    }
+        
+    if($print) {
+        $retval = $cycle_array[$cycle_vars[$name]['index']];
+    } else {
+        $retval = null;
     }
-		
-	if($print) {
-		echo $cycle_array[$cycle_vars[$name]['index']];
-	}
 
-	if($advance) {
-		if ( $cycle_vars[$name]['index'] >= count($cycle_array) -1 ) {
-			$cycle_vars[$name]['index'] = 0;			
-		} else {
-			$cycle_vars[$name]['index']++;
-		}
-	}
+    if($advance) {
+        if ( $cycle_vars[$name]['index'] >= count($cycle_array) -1 ) {
+            $cycle_vars[$name]['index'] = 0;
+        } else {
+            $cycle_vars[$name]['index']++;
+        }
+    }
+    
+    return $retval;
 }
 
 /* vim: set expandtab: */