Implemented plugin architecture.

libs/plugins/function.counter.php

@@ -0,0 +1,63 @@
+<?php
+
+/*
+ * Smarty plugin
+ * -------------------------------------------------------------
+ * Type:     function
+ * Name:     counter
+ * Purpose:  print out a counter value
+ * -------------------------------------------------------------
+ */
+function smarty_function_counter($args, &$smarty_obj)
+{
+    static $count = array();
+    static $skipval = array();
+    static $dir = array();
+    static $id = "default";
+    static $printval = array();
+    static $assign = "";
+
+    extract($args);
+
+    if (!isset($id))
+        $id = "default";
+
+    if (isset($start))
+        $count[$id] = $start;
+    else if (!isset($count[$id]))
+        $count[$id]=1;
+
+    if (!isset($print))
+        $printval[$id]=true;
+    else
+        $printval[$id]=$print;
+    
+    if (!empty($assign)) {
+        $printval[$id] = false;
+        $smarty_obj->assign($assign, $count[$id]);
+    }
+
+    if ($printval[$id])
+        echo $count[$id];
+
+    if (isset($skip))
+        $skipval[$id] = $skip;
+    else if (empty($skipval[$id]))
+        $skipval[$id] = 1;
+    
+    if (isset($direction))
+        $dir[$id] = $direction;
+    else if (!isset($dir[$id]))
+        $dir[$id] = "up";
+
+    if ($dir[$id] == "down")
+        $count[$id] -= $skipval[$id];
+    else
+        $count[$id] += $skipval[$id];
+    
+    return true;
+}
+
+/* vim: set expandtab: */
+
+?>