PhutilConsoleSyntaxHighlighter.php
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	<?php

	/**
	* Simple syntax highlighter for console output. We just try to highlight the
	* commands so it's easier to follow transcripts.
	*/
	final class PhutilConsoleSyntaxHighlighter extends Phobject {

	private $config = array();

	public function setConfig($key, $value) {
	$this->config[$key] = $value;
	return $this;
	}

	public function getHighlightFuture($source) {
	$in_command = false;
	$lines = explode("\n", $source);
	foreach ($lines as $key => $line) {
	$matches = null;

	// Parse commands like this:
	//
	// some/path/ $ ./bin/example # Do things
	//
	// ...into path, command, and comment components.

	$pattern =
	'@'.
	($in_command ? '()(.?)' : '^(\S+[\\\\/] )?([$] .?)').
	'(#.*\|\\\\)?$@';

	if (preg_match($pattern, $line, $matches)) {
	$lines[$key] = hsprintf(
	'%s<span class="gp">%s</span>%s',
	$matches[1],
	$matches[2],
	(!empty($matches[3])
	? hsprintf('<span class="k">%s</span>', $matches[3])
	: ''));
	$in_command = (idx($matches, 3) == '\\');
	} else {
	$lines[$key] = hsprintf('<span class="go">%s</span>', $line);
	}
	}
	$lines = phutil_implode_html("\n", $lines);

	return new ImmediateFuture($lines);
	}

	}