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PhutilRemarkupMonospaceRule.php
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			<?php

			final class PhutilRemarkupMonospaceRule extends PhutilRemarkupRule {

			public function getPriority() {
			return 100.0;
			}

			public function apply($text) {
			// NOTE: We don't require a trailing non-boundary on the backtick syntax,
			// to permit the use case of naming and pluralizing a class, like
			// "Load all the `PhutilArray`s and then iterate over them." In theory, the
			// required \B on the leading backtick should protect us from most
			// collateral damage.

			return preg_replace_callback(
			'@##([\s\S]+?)##\|\B`(.+?)`@',
			array($this, 'markupMonospacedText'),
			$text);
			}

			protected function markupMonospacedText(array $matches) {
			if ($this->getEngine()->isTextMode()) {
			$result = $matches[0];

			} else
			if ($this->getEngine()->isHTMLMailMode()) {
			$match = isset($matches[2]) ? $matches[2] : $matches[1];
			$result = phutil_tag(
			'tt',
			array(
			'style' => 'background: #ebebeb; font-size: 13px;',
			),
			$match);

			} else {
			$match = isset($matches[2]) ? $matches[2] : $matches[1];
			$result = phutil_tag(
			'tt',
			array(
			'class' => 'remarkup-monospaced',
			),
			$match);
			}

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

			}