PhabricatorRemarkupRuleImageMacro.php
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	<?php

	/**
	* @group markup
	*/
	final class PhabricatorRemarkupRuleImageMacro
	extends PhutilRemarkupRule {

	private $images;

	public function apply($text) {
	return preg_replace_callback(
	'@^([a-zA-Z0-9_\-]+)$@m',
	array($this, 'markupImageMacro'),
	$text);
	}

	public function markupImageMacro($matches) {
	if ($this->images === null) {
	$this->images = array();
	$rows = id(new PhabricatorFileImageMacro())->loadAllWhere(
	'isDisabled = 0');
	foreach ($rows as $row) {
	$this->images[$row->getName()] = $row->getFilePHID();
	}
	}

	if (array_key_exists($matches[1], $this->images)) {
	$phid = $this->images[$matches[1]];

	$file = id(new PhabricatorFile())->loadOneWhere('phid = %s', $phid);
	if ($file) {
	$src_uri = $file->getBestURI();
	} else {
	$src_uri = null;
	}

	$img = phutil_render_tag(
	'img',
	array(
	'src' => $src_uri,
	'alt' => $matches[1],
	'title' => $matches[1]),
	null);
	return $this->getEngine()->storeText($img);
	} else {
	return $matches[1];
	}
	}

	}