ArcanistXMLLinter.php
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ArcanistXMLLinter.php
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	<?php

	/**
	* A linter which uses [[http://php.net/simplexml \| SimpleXML]] to detect
	* errors and potential problems in XML files.
	*/
	final class ArcanistXMLLinter extends ArcanistLinter {

	public function getInfoName() {
	return pht('SimpleXML Linter');
	}

	public function getInfoDescription() {
	return pht('Uses SimpleXML to detect formatting errors in XML files.');
	}

	public function getLinterName() {
	return 'XML';
	}

	public function getLinterConfigurationName() {
	return 'xml';
	}

	public function canRun() {
	return extension_loaded('libxml') && extension_loaded('simplexml');
	}

	public function getCacheVersion() {
	return LIBXML_VERSION;
	}

	public function lintPath($path) {
	libxml_use_internal_errors(true);
	libxml_clear_errors();

	if (simplexml_load_string($this->getData($path))) {
	// XML appears to be valid.
	return;
	}

	foreach (libxml_get_errors() as $error) {
	$message = id(new ArcanistLintMessage())
	->setPath($path)
	->setLine($error->line)
	->setChar($error->column ? $error->column : null)
	->setCode($this->getLintMessageFullCode($error->code))
	->setName(pht('LibXML Error'))
	->setDescription(trim($error->message));

	switch ($error->level) {
	case LIBXML_ERR_NONE:
	$message->setSeverity(ArcanistLintSeverity::SEVERITY_DISABLED);
	break;

	case LIBXML_ERR_WARNING:
	$message->setSeverity(ArcanistLintSeverity::SEVERITY_WARNING);
	break;

	case LIBXML_ERR_ERROR:
	case LIBXML_ERR_FATAL:
	$message->setSeverity(ArcanistLintSeverity::SEVERITY_ERROR);
	break;

	default:
	$message->setSeverity(ArcanistLintSeverity::SEVERITY_ADVICE);
	break;
	}

	$this->addLintMessage($message);
	}
	}

	}

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