diff options
Diffstat (limited to 'includes/pear/Text/Wiki/Render/Xhtml/Wikilink.php')
| -rw-r--r-- | includes/pear/Text/Wiki/Render/Xhtml/Wikilink.php | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/includes/pear/Text/Wiki/Render/Xhtml/Wikilink.php b/includes/pear/Text/Wiki/Render/Xhtml/Wikilink.php new file mode 100644 index 0000000..b93b000 --- /dev/null +++ b/includes/pear/Text/Wiki/Render/Xhtml/Wikilink.php @@ -0,0 +1,177 @@ +<?php +// vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: +/** + * Wikilink rule end renderer for Xhtml + * + * PHP versions 4 and 5 + * + * @category Text + * @package Text_Wiki + * @author Paul M. Jones <pmjones@php.net> + * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 + * @version CVS: $Id: Wikilink.php 224670 2006-12-08 21:25:24Z justinpatrin $ + * @link http://pear.php.net/package/Text_Wiki + */ + +/** + * This class renders wiki links in XHTML. + * + * @category Text + * @package Text_Wiki + * @author Paul M. Jones <pmjones@php.net> + * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 + * @version Release: @package_version@ + * @link http://pear.php.net/package/Text_Wiki + */ +class Text_Wiki_Render_Xhtml_Wikilink extends Text_Wiki_Render { + + var $conf = array( + 'pages' => array(), // set to null or false to turn off page checks + 'view_url' => 'http://example.com/index.php?page=%s', + 'new_url' => 'http://example.com/new.php?page=%s', + 'new_text' => '?', + 'new_text_pos' => 'after', // 'before', 'after', or null/false + 'css' => null, + 'css_new' => null, + 'exists_callback' => null // call_user_func() callback + ); + + + /** + * + * Renders a token into XHTML. + * + * @access public + * + * @param array $options The "options" portion of the token (second + * element). + * + * @return string The text rendered from the token options. + * + */ + + function token($options) + { + // make nice variable names (page, anchor, text) + extract($options); + + // is there a "page existence" callback? + // we need to access it directly instead of through + // getConf() because we'll need a reference (for + // object instance method callbacks). + if (isset($this->conf['exists_callback'])) { + $callback =& $this->conf['exists_callback']; + } else { + $callback = false; + } + + if ($callback) { + // use the callback function + $exists = call_user_func($callback, $page); + } else { + // no callback, go to the naive page array. + $list = $this->getConf('pages'); + if (is_array($list)) { + // yes, check against the page list + $exists = in_array($page, $list); + } else { + // no, assume it exists + $exists = true; + } + } + + $anchor = '#'.$this->urlEncode(substr($anchor, 1)); + + // does the page exist? + if ($exists) { + + // PAGE EXISTS. + + // link to the page view, but we have to build + // the HREF. we support both the old form where + // the page always comes at the end, and the new + // form that uses %s for sprintf() + $href = $this->getConf('view_url'); + + if (strpos($href, '%s') === false) { + // use the old form (page-at-end) + $href = $href . $this->urlEncode($page) . $anchor; + } else { + // use the new form (sprintf format string) + $href = sprintf($href, $this->urlEncode($page)) . $anchor; + } + + // get the CSS class and generate output + $css = ' class="'.$this->textEncode($this->getConf('css')).'"'; + + $start = '<a'.$css.' href="'.$this->textEncode($href).'">'; + $end = '</a>'; + } else { + + // PAGE DOES NOT EXIST. + + // link to a create-page url, but only if new_url is set + $href = $this->getConf('new_url', null); + + // set the proper HREF + if (! $href || trim($href) == '') { + + // no useful href, return the text as it is + //TODO: This is no longer used, need to look closer into this branch + $output = $text; + + } else { + + // yes, link to the new-page href, but we have to build + // it. we support both the old form where + // the page always comes at the end, and the new + // form that uses sprintf() + if (strpos($href, '%s') === false) { + // use the old form + $href = $href . $this->urlEncode($page); + } else { + // use the new form + $href = sprintf($href, $this->urlEncode($page)); + } + } + + // get the appropriate CSS class and new-link text + $css = ' class="'.$this->textEncode($this->getConf('css_new')).'"'; + $new = $this->getConf('new_text'); + + // what kind of linking are we doing? + $pos = $this->getConf('new_text_pos'); + if (! $pos || ! $new) { + // no position (or no new_text), use css only on the page name + + $start = '<a'.$css.' href="'.$this->textEncode($href).'">'; + $end = '</a>'; + } elseif ($pos == 'before') { + // use the new_text BEFORE the page name + $start = '<a'.$css.' href="'.$this->textEncode($href).'">'.$this->textEncode($new).'</a>'; + $end = ''; + } else { + // default, use the new_text link AFTER the page name + $start = ''; + $end = '<a'.$css.' href="'.$this->textEncode($href).'">'.$this->textEncode($new).'</a>'; + } + } + if (!strlen($text)) { + $start .= $this->textEncode($page); + } + if (isset($type)) { + switch ($type) { + case 'start': + $output = $start; + break; + case 'end': + $output = $end; + break; + } + } else { + $output = $start.$this->textEncode($text).$end; + } + return $output; + } +} +?> |