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PhutilDefaultSyntaxHighlighterEnginePygmentsFuture.php
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			<?php

			final class PhutilDefaultSyntaxHighlighterEnginePygmentsFuture
			extends FutureProxy {

			private $source;
			private $scrub;

			public function __construct(Future $proxied, $source, $scrub = false) {
			parent::__construct($proxied);
			$this->source = $source;
			$this->scrub = $scrub;
			}

			protected function didReceiveResult($result) {
			list($err, $stdout, $stderr) = $result;

			if (!$err && strlen($stdout)) {
			// Strip off fluff Pygments adds.
			$stdout = preg_replace(
			'@^<div class="highlight"><pre>(.)</pre></div>\s$@s',
			'\1',
			$stdout);
			if ($this->scrub) {
			$stdout = preg_replace('/^.*\n/', '', $stdout);
			}
			return phutil_safe_html($stdout);
			}

			throw new PhutilSyntaxHighlighterException($stderr, $err);
			}

			}