<?php

/*

 * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between

 * Copyright (C) 2006-2009 Dan Fuhry

 *

 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied

 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.

 */

class Carpenter_Render_Xhtml

{

	public $rules = array(

		'lang'   => '',

		'templates' => '',

		'bold'   => '<strong>\\1</strong>',

		'italic' => '<em>\\1</em>',

		'underline' => '<span style="text-decoration: underline;">\\1</span>',

		'externalwithtext' => '<a href="\\1" onclick="window.open(this.href); return false;">\\2</a>',

		'externalnotext' => '<a href="\\1" onclick="window.open(this.href); return false;">\\1</a>',

		'hr' => '<hr />'

	);

	public function heading($text, $pieces)

	{

		static $heading_names = array();

		foreach ( $pieces as $i => $piece )

		{

			$tocid = sanitize_page_id(trim($piece['text']));

			// (bad) workaround for links in headings

			$tocid = str_replace(array('[', ']'), '', $tocid);

			// conflict avoidance

			if ( isset($heading_names[$tocid]) )

			{

				$id = 2;

				while ( isset($heading_names["{$tocid}{$id}"]) )

					$id++;

				$tocid .= $id;

			}

			$heading_names[$tocid] = true;

			$tag = '<h' . $piece['level'] . ' id="head:' . $tocid . '">';

			$tag .= trim($piece['text']);

			$tag .= '</h' . $piece['level'] . '>';

			$text = str_replace(Carpenter::generate_token($i), $tag, $text);

		}

		return $text;

	}

	public function multilist($text, $pieces)

	{

		foreach ( $pieces as $i => $piece )

		{

			switch($piece['type'])

			{

				case 'unordered':

				default:

					$btag = 'ul';

					$itag = 'li';

					break;

				case 'ordered':

					$btag = 'ol';

					$itag = 'li';

					break;

				case 'indent':

					$btag = 'dl';

					$itag = 'dd';

					break;

			}

			$list = "<_paragraph_bypass><$btag>\n";

			$spacing = '';

			$depth = 1;

			foreach ( $piece['items'] as $j => $item )

			{

				// most of this just goes into pretty formatting.

				// everything else goes into meeting the PITA requirement that if you're going

				// another level deep, HTML requires the next level to be INSIDE of the <dd>/<li> tag.

				$itemdepth = $item['depth'];

				if ( $itemdepth > $depth )

				{

					while ( $depth < $itemdepth )

					{

						$spacing .= '    ';

						$list .= "{$spacing}<$btag>\n";

						$depth++;

					}

				}

				else if ( $itemdepth < $depth )

				{

					while ( $depth > $itemdepth )

					{

						$list .= "{$spacing}</$btag>\n";

						$spacing = substr($spacing, 4);

						$list .= "{$spacing}</$itag>\n";

						$spacing = substr($spacing, 4);

						$depth--;

					}

				}

				$list .= "{$spacing}    <$itag>" . nl2br($item['text']);

				if ( ( isset($piece['items'][ ++$j ]) && $piece['items'][ $j ]['depth'] <= $itemdepth ) || !isset($piece['items'][ $j ]) ) 

				{

					$list .= "</$itag>\n";

				}

				else

				{

					$list .= "\n";

					$spacing .= "    ";

				}

			}

			while ( $depth > 1 )

			{

				$list .= "{$spacing}</$btag>\n";

				$spacing = substr($spacing, 4);

				$list .= "{$spacing}</$itag>\n";

				$spacing = substr($spacing, 4);

				$depth--;

			}

			$list .= "</$btag></_paragraph_bypass>\n";

			$text = str_replace(Carpenter::generate_token($i), $list, $text);

		}

		return $text;

	}

	public function blockquote($text)

	{

		return $text;

	}

	public function blockquotepost($text, $rand_id)

	{

		$text = strtr($text, array(

				"<p>{blockquote:$rand_id}<br />"  => '<blockquote>',

				"<br />\n{/blockquote:$rand_id}</p>" => '</blockquote>',

				"{blockquote:$rand_id}"  => '<blockquote>',

				"{/blockquote:$rand_id}" => '</blockquote>'

			));

		$text = strtr($text, array(

				"<blockquote><br />" => '<blockquote>',

				"</blockquote><br />" => '</blockquote>'

			));

		return $text;

	}

	public function paragraph($text, $pieces)

	{

		foreach ( $pieces as $i => $piece )

		{

			$text = str_replace(Carpenter::generate_token($i), '<p>' . nl2br($piece) . '</p>', $text);

		}

		return $text;

	}

	public function mailtonotext($pieces)

	{

		$pieces[2] = $pieces[1];

		return $this->mailtowithtext($pieces);

	}

	public function mailtowithtext($pieces)

	{

		global $email;

		return $email->encryptEmail($pieces[1], '', '', $pieces[2]);

	}

	public function code($match)

	{

		return '<pre class="wikitext-code"><final>' . htmlspecialchars($match[1]) . '</final></pre>';

	}

}

// Alias internal link parsing to RenderMan's method

function parser_mediawiki_xhtml_internallink($text)

{

	return RenderMan::parse_internal_links($text);

}