PhutilRemarkupEngineRemarkupQuotesBlockRule.php
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	<?php

	final class PhutilRemarkupEngineRemarkupQuotesBlockRule
	extends PhutilRemarkupEngineBlockRule {

	public function getMatchingLineCount(array $lines, $cursor) {
	$pos = $cursor;

	if (preg_match('/^>/', $lines[$pos])) {
	do {
	++$pos;
	} while (isset($lines[$pos]) && preg_match('/^>/', $lines[$pos]));
	}

	return ($pos - $cursor);
	}

	public function supportsChildBlocks() {
	return true;
	}

	public function extractChildText($text) {
	$text = phutil_split_lines($text, true);
	foreach ($text as $key => $line) {
	$text[$key] = substr($line, 1);
	}

	return array('', implode('', $text));
	}

	public function markupText($text, $children) {
	if ($this->getEngine()->isTextMode()) {
	$lines = phutil_split_lines($children);
	return '> '.implode("\n> ", $lines);
	}

	return phutil_tag(
	'blockquote',
	array(),
	$children);
	}

	}