diff vendor/zendframework/zend-feed/src/Writer/Writer.php @ 0:c75dbcec494b

Initial commit from drush-created site

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/zendframework/zend-feed/src/Writer/Writer.php	Thu Jul 05 14:24:15 2018 +0000
@@ -0,0 +1,202 @@
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @link      http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Zend\Feed\Writer;
+
+/**
+*/
+class Writer
+{
+    /**
+     * Namespace constants
+     */
+    const NAMESPACE_ATOM_03  = 'http://purl.org/atom/ns#';
+    const NAMESPACE_ATOM_10  = 'http://www.w3.org/2005/Atom';
+    const NAMESPACE_RDF      = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#';
+    const NAMESPACE_RSS_090  = 'http://my.netscape.com/rdf/simple/0.9/';
+    const NAMESPACE_RSS_10   = 'http://purl.org/rss/1.0/';
+
+    /**
+     * Feed type constants
+     */
+    const TYPE_ANY              = 'any';
+    const TYPE_ATOM_03          = 'atom-03';
+    const TYPE_ATOM_10          = 'atom-10';
+    const TYPE_ATOM_ANY         = 'atom';
+    const TYPE_RSS_090          = 'rss-090';
+    const TYPE_RSS_091          = 'rss-091';
+    const TYPE_RSS_091_NETSCAPE = 'rss-091n';
+    const TYPE_RSS_091_USERLAND = 'rss-091u';
+    const TYPE_RSS_092          = 'rss-092';
+    const TYPE_RSS_093          = 'rss-093';
+    const TYPE_RSS_094          = 'rss-094';
+    const TYPE_RSS_10           = 'rss-10';
+    const TYPE_RSS_20           = 'rss-20';
+    const TYPE_RSS_ANY          = 'rss';
+
+    /**
+     * @var ExtensionManagerInterface
+     */
+    protected static $extensionManager = null;
+
+    /**
+     * Array of registered extensions by class postfix (after the base class
+     * name) across four categories - data containers and renderers for entry
+     * and feed levels.
+     *
+     * @var array
+     */
+    protected static $extensions = [
+        'entry'         => [],
+        'feed'          => [],
+        'entryRenderer' => [],
+        'feedRenderer'  => [],
+    ];
+
+    /**
+     * Set plugin loader for use with Extensions
+     *
+     * @param ExtensionManagerInterface
+     */
+    public static function setExtensionManager(ExtensionManagerInterface $extensionManager)
+    {
+        static::$extensionManager = $extensionManager;
+    }
+
+    /**
+     * Get plugin manager for use with Extensions
+     *
+     * @return ExtensionManagerInterface
+     */
+    public static function getExtensionManager()
+    {
+        if (!isset(static::$extensionManager)) {
+            static::setExtensionManager(new ExtensionManager());
+        }
+        return static::$extensionManager;
+    }
+
+    /**
+     * Register an Extension by name
+     *
+     * @param  string $name
+     * @return void
+     * @throws Exception\RuntimeException if unable to resolve Extension class
+     */
+    public static function registerExtension($name)
+    {
+        $feedName          = $name . '\Feed';
+        $entryName         = $name . '\Entry';
+        $feedRendererName  = $name . '\Renderer\Feed';
+        $entryRendererName = $name . '\Renderer\Entry';
+        $manager           = static::getExtensionManager();
+        if (static::isRegistered($name)) {
+            if ($manager->has($feedName)
+                || $manager->has($entryName)
+                || $manager->has($feedRendererName)
+                || $manager->has($entryRendererName)
+            ) {
+                return;
+            }
+        }
+        if (! $manager->has($feedName)
+            && ! $manager->has($entryName)
+            && ! $manager->has($feedRendererName)
+            && ! $manager->has($entryRendererName)
+        ) {
+            throw new Exception\RuntimeException(sprintf(
+                'Could not load extension "%s" using Plugin Loader. '
+                . 'Check prefix paths are configured and extension exists.',
+                $name
+            ));
+        }
+        if ($manager->has($feedName)) {
+            static::$extensions['feed'][] = $feedName;
+        }
+        if ($manager->has($entryName)) {
+            static::$extensions['entry'][] = $entryName;
+        }
+        if ($manager->has($feedRendererName)) {
+            static::$extensions['feedRenderer'][] = $feedRendererName;
+        }
+        if ($manager->has($entryRendererName)) {
+            static::$extensions['entryRenderer'][] = $entryRendererName;
+        }
+    }
+
+    /**
+     * Is a given named Extension registered?
+     *
+     * @param  string $extensionName
+     * @return bool
+     */
+    public static function isRegistered($extensionName)
+    {
+        $feedName          = $extensionName . '\Feed';
+        $entryName         = $extensionName . '\Entry';
+        $feedRendererName  = $extensionName . '\Renderer\Feed';
+        $entryRendererName = $extensionName . '\Renderer\Entry';
+        if (in_array($feedName, static::$extensions['feed'])
+            || in_array($entryName, static::$extensions['entry'])
+            || in_array($feedRendererName, static::$extensions['feedRenderer'])
+            || in_array($entryRendererName, static::$extensions['entryRenderer'])
+        ) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Get a list of extensions
+     *
+     * @return array
+     */
+    public static function getExtensions()
+    {
+        return static::$extensions;
+    }
+
+    /**
+     * Reset class state to defaults
+     *
+     * @return void
+     */
+    public static function reset()
+    {
+        static::$extensionManager = null;
+        static::$extensions   = [
+            'entry'         => [],
+            'feed'          => [],
+            'entryRenderer' => [],
+            'feedRenderer'  => [],
+        ];
+    }
+
+    /**
+     * Register core (default) extensions
+     *
+     * @return void
+     */
+    public static function registerCoreExtensions()
+    {
+        static::registerExtension('DublinCore');
+        static::registerExtension('Content');
+        static::registerExtension('Atom');
+        static::registerExtension('Slash');
+        static::registerExtension('WellFormedWeb');
+        static::registerExtension('Threading');
+        static::registerExtension('ITunes');
+    }
+
+    public static function lcfirst($str)
+    {
+        $str[0] = strtolower($str[0]);
+        return $str;
+    }
+}