IsEqualIgnoringWhiteSpace.php
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IsEqualIgnoringWhiteSpace.php
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	<?php
	namespace Hamcrest\Text;

	/*
	Copyright (c) 2009 hamcrest.org
	*/
	use Hamcrest\Description;
	use Hamcrest\TypeSafeMatcher;

	/**
	* Tests if a string is equal to another string, ignoring any changes in
	* whitespace.
	*/
	class IsEqualIgnoringWhiteSpace extends TypeSafeMatcher
	{

	private $_string;

	public function __construct($string)
	{
	parent::__construct(self::TYPE_STRING);

	$this->_string = $string;
	}

	protected function matchesSafely($item)
	{
	return (strtolower($this->_stripSpace($item))
	=== strtolower($this->_stripSpace($this->_string)));
	}

	protected function describeMismatchSafely($item, Description $mismatchDescription)
	{
	$mismatchDescription->appendText('was ')->appendText($item);
	}

	public function describeTo(Description $description)
	{
	$description->appendText('equalToIgnoringWhiteSpace(')
	->appendValue($this->_string)
	->appendText(')')
	;
	}

	/**
	* Matches if value is a string equal to $string, regardless of whitespace.
	*
	* @factory
	*/
	public static function equalToIgnoringWhiteSpace($string)
	{
	return new self($string);
	}

	// -- Private Methods

	private function _stripSpace($string)
	{
	$parts = preg_split("/[\r\n\t ]+/", $string);
	foreach ($parts as $i => $part) {
	$parts[$i] = trim($part, " \r\n\t");
	}

	return trim(implode(' ', $parts), " \r\n\t");
	}
	}