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.
	*
	* @group markup
	*/
	final class PhutilConsoleSyntaxHighlighter {

	private $config = array();
	private $replaceClass;

	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)) {
	$line = '';
	if ($matches[1]) {
	$line .= phutil_escape_html($matches[1]);
	}
	$line .= '<span class="gp">'.phutil_escape_html($matches[2]).'</span>';
	if (!empty($matches[3])) {
	$line .= '<span class="k">'.phutil_escape_html($matches[3]).'</span>';
	}
	$lines[$key] = $line;
	$in_command = ($matches[3] == '\\');
	} else {
	$lines[$key] = '<span class="go">'.phutil_escape_html($line).'</span>';
	}
	}
	$lines = implode("\n", $lines);

	return new ImmediateFuture($lines);
	}

	}