* PHPTAL library

1 files changed, 98 insertions, 0 deletions

diff --git a/lib/phptal/PHPTAL/Php/Attribute.php b/lib/phptal/PHPTAL/Php/Attribute.php
new file mode 100644
index 0000000..ceb8a12
--- /dev/null
+++ b/lib/phptal/PHPTAL/Php/Attribute.php
@@ -0,0 +1,98 @@
+<?php
+/**
+ * PHPTAL templating engine
+ *
+ * PHP Version 5
+ *
+ * @category HTML
+ * @package  PHPTAL
+ * @author   Laurent Bedubourg <lbedubourg@motion-twin.com>
+ * @author   Kornel Lesiński <kornel@aardvarkmedia.co.uk>
+ * @license  http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License
+ * @version  SVN: $Id$
+ * @link     http://phptal.org/
+ */
+
+/**
+ * Base class for all PHPTAL attributes.
+ *
+ * Attributes are first ordered by PHPTAL then called depending on their
+ * priority before and after the element printing.
+ *
+ * An attribute must implements start() and end().
+ *
+ * @package PHPTAL
+ * @subpackage Php
+ * @author Laurent Bedubourg <lbedubourg@motion-twin.com>
+ */
+abstract class PHPTAL_Php_Attribute
+{
+    const ECHO_TEXT = 'text';
+    const ECHO_STRUCTURE = 'structure';
+
+    /** Attribute value specified by the element. */
+    protected $expression;
+
+    /** Element using this attribute (PHPTAL's counterpart of XML node) */
+    protected $phpelement;
+
+    /**
+     * Called before element printing.
+     */
+    abstract function before(PHPTAL_Php_CodeWriter $codewriter);
+
+    /**
+     * Called after element printing.
+     */
+    abstract function after(PHPTAL_Php_CodeWriter $codewriter);
+
+    function __construct(PHPTAL_Dom_Element $phpelement, $expression)
+    {
+        $this->expression = $expression;
+        $this->phpelement = $phpelement;
+    }
+
+    /**
+     * Remove structure|text keyword from expression and stores it for later
+     * doEcho() usage.
+     *
+     * $expression = 'stucture my/path';
+     * $expression = $this->extractEchoType($expression);
+     *
+     * ...
+     *
+     * $this->doEcho($code);
+     */
+    protected function extractEchoType($expression)
+    {
+        $echoType = self::ECHO_TEXT;
+        $expression = trim($expression);
+        if (preg_match('/^(text|structure)\s+(.*?)$/ism', $expression, $m)) {
+            list(, $echoType, $expression) = $m;
+        }
+        $this->_echoType = strtolower($echoType);
+        return trim($expression);
+    }
+
+    protected function doEchoAttribute(PHPTAL_Php_CodeWriter $codewriter, $code)
+    {
+        if ($this->_echoType === self::ECHO_TEXT)
+            $codewriter->doEcho($code);
+        else
+            $codewriter->doEchoRaw($code);
+    }
+
+    protected function parseSetExpression($exp)
+    {
+        $exp = trim($exp);
+        // (dest) (value)
+        if (preg_match('/^([a-z0-9:\-_]+)\s+(.*?)$/si', $exp, $m)) {
+            return array($m[1], trim($m[2]));
+        }
+        // (dest)
+        return array($exp, null);
+    }
+
+    protected $_echoType = PHPTAL_Php_Attribute::ECHO_TEXT;
+}
+