template 엔진 '일단' 추가

e_lib/plates/Template/Functions.php

@@ -0,0 +1,78 @@
+<?php
+
+namespace League\Plates\Template;
+
+use LogicException;
+
+/**
+ * A collection of template functions.
+ */
+class Functions
+{
+    /**
+     * Array of template functions.
+     * @var array
+     */
+    protected $functions = array();
+
+    /**
+     * Add a new template function.
+     * @param  string    $name;
+     * @param  callback  $callback;
+     * @return Functions
+     */
+    public function add($name, $callback)
+    {
+        if ($this->exists($name)) {
+            throw new LogicException(
+                'The template function name "' . $name . '" is already registered.'
+            );
+        }
+
+        $this->functions[$name] = new Func($name, $callback);
+
+        return $this;
+    }
+
+    /**
+     * Remove a template function.
+     * @param  string    $name;
+     * @return Functions
+     */
+    public function remove($name)
+    {
+        if (!$this->exists($name)) {
+            throw new LogicException(
+                'The template function "' . $name . '" was not found.'
+            );
+        }
+
+        unset($this->functions[$name]);
+
+        return $this;
+    }
+
+    /**
+     * Get a template function.
+     * @param  string $name
+     * @return Func
+     */
+    public function get($name)
+    {
+        if (!$this->exists($name)) {
+            throw new LogicException('The template function "' . $name . '" was not found.');
+        }
+
+        return $this->functions[$name];
+    }
+
+    /**
+     * Check if a template function exists.
+     * @param  string  $name
+     * @return boolean
+     */
+    public function exists($name)
+    {
+        return isset($this->functions[$name]);
+    }
+}