PhrictionRemarkupRule.php
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	<?php

	final class PhrictionRemarkupRule extends PhutilRemarkupRule {

	public function getPriority() {
	return 175.0;
	}

	public function apply($text) {
	return preg_replace_callback(
	'@\B\\[\\[([^\|\\]]+)(?:\\\|([^\\]]+))?\\]\\]\B@U',
	array($this, 'markupDocumentLink'),
	$text);
	}

	public function markupDocumentLink($matches) {

	$link = trim($matches[1]);
	$name = trim(idx($matches, 2, $link));
	if (empty($matches[2])) {
	$name = explode('/', trim($name, '/'));
	$name = end($name);
	}

	$uri = new PhutilURI($link);
	$slug = $uri->getPath();
	$fragment = $uri->getFragment();
	$slug = PhabricatorSlug::normalize($slug);
	$slug = PhrictionDocument::getSlugURI($slug);
	$href = (string)id(new PhutilURI($slug))->setFragment($fragment);

	if ($this->getEngine()->getState('toc')) {
	$text = $name;
	} else if ($this->getEngine()->isTextMode()) {
	return PhabricatorEnv::getProductionURI($href);
	} else {
	$text = $this->newTag(
	'a',
	array(
	'href' => $href,
	'class' => 'phriction-link',
	),
	$name);
	}

	return $this->getEngine()->storeText($text);
	}

	}