Frederic Massart
87 lines
2.4 KiB
PHP
87 lines
2.4 KiB
PHP
<?php
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/**
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* HTML parser implementation. It only implements links.
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*
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* @author Josep Arús
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*
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* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
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* @package mod_wiki
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*/
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include_once("nwiki.php");
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class html_parser extends nwiki_parser {
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protected $blockrules = array();
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protected $section_editing = true;
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public function __construct() {
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parent::__construct();
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// The order is important, headers should be parsed before links.
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$this->tagrules = array(
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// Headers are considered tags here.
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'header' => array(
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'expression' => "/<\s*h([1-$this->maxheaderdepth])\s*>(.+?)<\/h[1-$this->maxheaderdepth]>/is"
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),
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'link' => $this->tagrules['link'],
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'url' => $this->tagrules['url']
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);
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}
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protected function before_parsing() {
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parent::before_parsing();
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$this->rules($this->string);
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}
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/**
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* Header tag rule
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* @param array $match Header regex match
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* @return string
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*/
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protected function header_tag_rule($match) {
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return $this->generate_header($match[2], $match[1]);
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}
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/**
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* Section editing: Special for HTML Parser (It parses <h1></h1>)
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*/
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public function get_section($header, $text, $clean = false) {
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if ($clean) {
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$text = preg_replace('/\r\n/', "\n", $text);
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$text = preg_replace('/\r/', "\n", $text);
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$text .= "\n\n";
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}
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$h1 = array("<\s*h1\s*>", "<\/h1>");
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$regex = "/(.*?)({$h1[0]}\s*".preg_quote($header, '/')."\s*{$h1[1]}.*?)((?:\n{$h1[0]}.*)|$)/is";
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preg_match($regex, $text, $match);
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if (!empty($match)) {
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return array($match[1], $match[2], $match[3]);
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} else {
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return false;
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}
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}
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protected function get_repeated_sections(&$text, $repeated = array()) {
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$this->repeated_sections = $repeated;
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return preg_replace_callback($this->tagrules['header'], array($this, 'get_repeated_sections_callback'), $text);
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}
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protected function get_repeated_sections_callback($match) {
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$text = trim($match[2]);
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if (in_array($text, $this->repeated_sections)) {
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$this->returnvalues['repeated_sections'][] = $text;
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return parser_utils::h('p', $text);
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} else {
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$this->repeated_sections[] = $text;
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}
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return $match[0];
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}
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}
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