ArcanistNewlineAfterOpenTagXHPASTLinterRule.php
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ArcanistNewlineAfterOpenTagXHPASTLinterRule.php
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	<?php

	final class ArcanistNewlineAfterOpenTagXHPASTLinterRule
	extends ArcanistXHPASTLinterRule {

	const ID = 81;

	public function getLintName() {
	return pht('Newline After PHP Open Tag');
	}

	public function getLintSeverity() {
	return ArcanistLintSeverity::SEVERITY_ADVICE;
	}

	public function process(XHPASTNode $root) {
	$tokens = $root->selectTokensOfType('T_OPEN_TAG');

	foreach ($tokens as $token) {
	for ($next = $token->getNextToken();
	$next;
	$next = $next->getNextToken()) {

	if ($next->getTypeName() == 'T_WHITESPACE' &&
	preg_match('/\n\s*\n/', $next->getValue())) {
	continue 2;
	}

	if ($token->getLineNumber() != $next->getLineNumber()) {
	break;
	}

	if ($next->getTypeName() == 'T_CLOSE_TAG') {
	continue 2;
	}
	}

	$next = $token->getNextToken();
	$this->raiseLintAtToken(
	$next,
	pht(
	'`%s` should be separated from code by an empty line.',
	'<?php'),
	"\n".$next->getValue());
	}
	}

	}