web/enmi/Zend/View/Stream.php
changeset 19 1c2f13fd785c
parent 0 4eba9c11703f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/enmi/Zend/View/Stream.php	Thu Jan 20 19:30:54 2011 +0100
@@ -0,0 +1,183 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_View
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: Stream.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/**
+ * Stream wrapper to convert markup of mostly-PHP templates into PHP prior to
+ * include().
+ *
+ * Based in large part on the example at
+ * http://www.php.net/manual/en/function.stream-wrapper-register.php
+ *
+ * As well as the example provided at:
+ *     http://mikenaberezny.com/2006/02/19/symphony-templates-ruby-erb/
+ * written by
+ *     Mike Naberezny (@link http://mikenaberezny.com)
+ *     Paul M. Jones  (@link http://paul-m-jones.com)
+ *
+ * @category   Zend
+ * @package    Zend_View
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_View_Stream
+{
+    /**
+     * Current stream position.
+     *
+     * @var int
+     */
+    protected $_pos = 0;
+
+    /**
+     * Data for streaming.
+     *
+     * @var string
+     */
+    protected $_data;
+
+    /**
+     * Stream stats.
+     *
+     * @var array
+     */
+    protected $_stat;
+
+    /**
+     * Opens the script file and converts markup.
+     */
+    public function stream_open($path, $mode, $options, &$opened_path)
+    {
+        // get the view script source
+        $path        = str_replace('zend.view://', '', $path);
+        $this->_data = file_get_contents($path);
+
+        /**
+         * If reading the file failed, update our local stat store
+         * to reflect the real stat of the file, then return on failure
+         */
+        if ($this->_data === false) {
+            $this->_stat = stat($path);
+            return false;
+        }
+
+        /**
+         * Convert <?= ?> to long-form <?php echo ?> and <? ?> to <?php ?>
+         *
+         */
+        $this->_data = preg_replace('/\<\?\=/',          "<?php echo ",  $this->_data);
+        $this->_data = preg_replace('/<\?(?!xml|php)/s', '<?php ',       $this->_data);
+
+        /**
+         * file_get_contents() won't update PHP's stat cache, so we grab a stat
+         * of the file to prevent additional reads should the script be
+         * requested again, which will make include() happy.
+         */
+        $this->_stat = stat($path);
+
+        return true;
+    }
+
+    /**
+     * Included so that __FILE__ returns the appropriate info
+     *
+     * @return array
+     */
+    public function url_stat()
+    {
+        return $this->_stat;
+    }
+
+    /**
+     * Reads from the stream.
+     */
+    public function stream_read($count)
+    {
+        $ret = substr($this->_data, $this->_pos, $count);
+        $this->_pos += strlen($ret);
+        return $ret;
+    }
+
+
+    /**
+     * Tells the current position in the stream.
+     */
+    public function stream_tell()
+    {
+        return $this->_pos;
+    }
+
+
+    /**
+     * Tells if we are at the end of the stream.
+     */
+    public function stream_eof()
+    {
+        return $this->_pos >= strlen($this->_data);
+    }
+
+
+    /**
+     * Stream statistics.
+     */
+    public function stream_stat()
+    {
+        return $this->_stat;
+    }
+
+
+    /**
+     * Seek to a specific point in the stream.
+     */
+    public function stream_seek($offset, $whence)
+    {
+        switch ($whence) {
+            case SEEK_SET:
+                if ($offset < strlen($this->_data) && $offset >= 0) {
+                $this->_pos = $offset;
+                    return true;
+                } else {
+                    return false;
+                }
+                break;
+
+            case SEEK_CUR:
+                if ($offset >= 0) {
+                    $this->_pos += $offset;
+                    return true;
+                } else {
+                    return false;
+                }
+                break;
+
+            case SEEK_END:
+                if (strlen($this->_data) + $offset >= 0) {
+                    $this->_pos = strlen($this->_data) + $offset;
+                    return true;
+                } else {
+                    return false;
+                }
+                break;
+
+            default:
+                return false;
+        }
+    }
+}