AbstractDiff::clearContent() - Code Metrics - Inspection of "Merge pull request #44 from caxy/enhancement/add-c..." - caxy/php-htmldiff - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 256f03...6c6d52 )

by Josh

created 2016-04-10 18:58 UTC

AbstractDiff::clearContent() A

↳ Parent: AbstractDiff

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
c	1
b	0
f	1
dl	0
loc	4
ccs	0
cts	3
cp	0
rs	10
cc	1
eloc	2
nc	1
nop	0
crap	2

<?php

namespace Caxy\HtmlDiff;

/**
 * Class AbstractDiff.
 */
abstract class AbstractDiff
{
    /**
     * @var array
     *
     * @deprecated since 0.1.0
     */
    public static $defaultSpecialCaseTags = array('strong', 'b', 'i', 'big', 'small', 'u', 'sub', 'sup', 'strike', 's', 'p');

    /**
     * @var array
     *
     * @deprecated since 0.1.0
     */
    public static $defaultSpecialCaseChars = array('.', ',', '(', ')', '\'');
    /**
     * @var bool
     *
     * @deprecated since 0.1.0
     */
    public static $defaultGroupDiffs = true;

    /**
     * @var HtmlDiffConfig
     */
    protected $config;

    /**
     * @var string
     */
    protected $content;
    /**
     * @var string
     */
    protected $oldText;
    /**
     * @var string
     */
    protected $newText;
    /**
     * @var array
     */
    protected $oldWords = array();
    /**
     * @var array
     */
    protected $newWords = array();

    /**
     * @var DiffCache[]
     */
    private $diffCaches = array();

    /**
     * AbstractDiff constructor.
     *
     * @param string     $oldText
     * @param string     $newText
     * @param string     $encoding
     * @param null|array $specialCaseTags
     * @param null|bool  $groupDiffs
     */
    public function __construct($oldText, $newText, $encoding = 'UTF-8', $specialCaseTags = null, $groupDiffs = null)
    {
        mb_substitute_character(0x20);

        $this->config = HtmlDiffConfig::create()->setEncoding($encoding);

        if ($specialCaseTags !== null) {
            $this->config->setSpecialCaseTags($specialCaseTags);
        }

        if ($groupDiffs !== null) {
            $this->config->setGroupDiffs($groupDiffs);
        }

        $this->oldText = $this->purifyHtml(trim($oldText));
        $this->newText = $this->purifyHtml(trim($newText));
        $this->content = '';
    }

    /**
     * @return bool|string
     */
    abstract public function build();

    /**
     * @return DiffCache|null
     */
    protected function getDiffCache()
    {
        if (!$this->hasDiffCache()) {
            return;
        }

        $hash = spl_object_hash($this->getConfig()->getCacheProvider());

        if (!array_key_exists($hash, $this->diffCaches)) {
            $this->diffCaches[$hash] = new DiffCache($this->getConfig()->getCacheProvider());
/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
        }

        return $this->diffCaches[$hash];
    }

    /**
     * @return bool
     */
    protected function hasDiffCache()
    {
        return null !== $this->getConfig()->getCacheProvider();
    }

    /**
     * @return HtmlDiffConfig
     */
    public function getConfig()
    {
        return $this->config;
    }

    /**
     * @param HtmlDiffConfig $config
     *
     * @return AbstractDiff
     */
    public function setConfig(HtmlDiffConfig $config)
    {
        $this->config = $config;

        return $this;
    }

    /**
     * @return int
     *
     * @deprecated since 0.1.0
     */
    public function getMatchThreshold()
    {
        return $this->config->getMatchThreshold();
    }

    /**
     * @param int $matchThreshold
     *
     * @return AbstractDiff
     *
     * @deprecated since 0.1.0
     */
    public function setMatchThreshold($matchThreshold)
    {
        $this->config->setMatchThreshold($matchThreshold);

        return $this;
    }

    /**
     * @param array $chars
     *
     * @deprecated since 0.1.0
     */
    public function setSpecialCaseChars(array $chars)
    {
        $this->config->setSpecialCaseChars($chars);
    }

    /**
     * @return array|null
     *
     * @deprecated since 0.1.0
     */
    public function getSpecialCaseChars()
    {
        return $this->config->getSpecialCaseChars();
    }

    /**
     * @param string $char
     *
     * @deprecated since 0.1.0
     */
    public function addSpecialCaseChar($char)
    {
        $this->config->addSpecialCaseChar($char);
    }

    /**
     * @param string $char
     *
     * @deprecated since 0.1.0
     */
    public function removeSpecialCaseChar($char)
    {
        $this->config->removeSpecialCaseChar($char);
    }

    /**
     * @param array $tags
     *
     * @deprecated since 0.1.0
     */
    public function setSpecialCaseTags(array $tags = array())
    {
        $this->config->setSpecialCaseChars($tags);
    }

    /**
     * @param string $tag
     *
     * @deprecated since 0.1.0
     */
    public function addSpecialCaseTag($tag)
    {
        $this->config->addSpecialCaseTag($tag);
    }

    /**
     * @param string $tag
     *
     * @deprecated since 0.1.0
     */
    public function removeSpecialCaseTag($tag)
    {
        $this->config->removeSpecialCaseTag($tag);
    }

    /**
     * @return array|null
     *
     * @deprecated since 0.1.0
     */
    public function getSpecialCaseTags()
    {
        return $this->config->getSpecialCaseTags();
    }

    /**
     * @return string
     */
    public function getOldHtml()
    {
        return $this->oldText;
    }

    /**
     * @return string
     */
    public function getNewHtml()
    {
        return $this->newText;
    }

    /**
     * @return string
     */
    public function getDifference()
    {
        return $this->content;
    }

    /**
     * Clears the diff content.
     *
     * @return void
     */
    public function clearContent()
    {
        $this->content = null;
    }

    /**
     * @param bool $boolean
     *
     * @return $this
     *
     * @deprecated since 0.1.0
     */
    public function setGroupDiffs($boolean)
    {
        $this->config->setGroupDiffs($boolean);

        return $this;
    }

    /**
     * @return bool
     *
     * @deprecated since 0.1.0
     */
    public function isGroupDiffs()
    {
        return $this->config->isGroupDiffs();
    }

    /**
     * @param string $tag
     *
     * @return string
     */
    protected function getOpeningTag($tag)
    {
        return '/<'.$tag.'[^>]*/i';
    }

    /**
     * @param string $tag
     *
     * @return string
     */
    protected function getClosingTag($tag)
    {
        return '</'.$tag.'>';
    }

    /**
     * @param string $str
     * @param string $start
     * @param string $end
     *
     * @return string
     */
    protected function getStringBetween($str, $start, $end)
    {
        $expStr = explode($start, $str, 2);
        if (count($expStr) > 1) {
            $expStr = explode($end, $expStr[ 1 ]);
            if (count($expStr) > 1) {
                array_pop($expStr);

                return implode($end, $expStr);
            }
        }

        return '';
    }

    /**
     * @param string $html
     *
     * @return string
     */
    protected function purifyHtml($html)
    {
        if (class_exists('Tidy') && false) {
            $config = array('output-xhtml' => true, 'indent' => false);
            $tidy = new tidy();
            $tidy->parseString($html, $config, 'utf8');
            $html = (string) $tidy;

            return $this->getStringBetween($html, '<body>');

        }

        return $html;
    }

    protected function splitInputsToWords()
    {
        $this->oldWords = $this->convertHtmlToListOfWords($this->explode($this->oldText));
        $this->newWords = $this->convertHtmlToListOfWords($this->explode($this->newText));
    }

    /**
     * @param string $text
     *
     * @return bool
     */
    protected function isPartOfWord($text)
    {
        return ctype_alnum(str_replace($this->config->getSpecialCaseChars(), '', $text));
    }

    /**
     * @param array $characterString
     *
     * @return array
     */
    protected function convertHtmlToListOfWords($characterString)
    {
        $mode = 'character';
        $current_word = '';
        $words = array();
        foreach ($characterString as $i => $character) {
            switch ($mode) {
                case 'character':
                if ($this->isStartOfTag($character)) {
                    if ($current_word != '') {
                        $words[] = $current_word;
                    }
                    $current_word = '<';
                    $mode = 'tag';
                } elseif (preg_match("/\s/", $character)) {
                    if ($current_word !== '') {
                        $words[] = $current_word;
                    }
                    $current_word = preg_replace('/\s+/S', ' ', $character);
                    $mode = 'whitespace';
                } else {
                    if (
                        (ctype_alnum($character) && (strlen($current_word) == 0 || $this->isPartOfWord($current_word))) ||

                        (in_array($character, $this->config->getSpecialCaseChars()) && isset($characterString[$i + 1]) && $this->isPartOfWord($characterString[$i + 1]))

                    ) {
                        $current_word .= $character;
                    } else {
                        $words[] = $current_word;
                        $current_word = $character;
                    }
                }
                break;
                case 'tag' :
switch ($selector) {
    case "A": //right
        doSomething();
        break;
    case "B" : //wrong
        doSomethingElse();
        break;
}
                if ($this->isEndOfTag($character)) {
                    $current_word .= '>';
                    $words[] = $current_word;
                    $current_word = '';

                    if (!preg_match('[^\s]', $character)) {
                        $mode = 'whitespace';
                    } else {
                        $mode = 'character';
                    }
                } else {
                    $current_word .= $character;
                }
                break;
                case 'whitespace':
                if ($this->isStartOfTag($character)) {
                    if ($current_word !== '') {
                        $words[] = $current_word;
                    }
                    $current_word = '<';
                    $mode = 'tag';
                } elseif (preg_match("/\s/", $character)) {
                    $current_word .= $character;
                    $current_word = preg_replace('/\s+/S', ' ', $current_word);
                } else {
                    if ($current_word != '') {
                        $words[] = $current_word;
                    }
                    $current_word = $character;
                    $mode = 'character';
                }
                break;
                default:
                break;
            }
        }
        if ($current_word != '') {
            $words[] = $current_word;
        }

        return $words;
    }

    /**
     * @param string $val
     *
     * @return bool
     */
    protected function isStartOfTag($val)
    {
        return $val == '<';
    }

    /**
     * @param string $val
     *
     * @return bool
     */
    protected function isEndOfTag($val)
    {
        return $val == '>';
    }

    /**
     * @param string $value
     *
     * @return bool
     */
    protected function isWhiteSpace($value)
    {
        return !preg_match('[^\s]', $value);
    }

    /**
     * @param string $value
     *
     * @return array
     */
    protected function explode($value)
    {
        // as suggested by @onassar
        return preg_split('//u', $value);
    }
}


1		<?php
2
3		namespace Caxy\HtmlDiff;
4
5		/**
6		* Class AbstractDiff.
7		*/
8		abstract class AbstractDiff
9		{
10		/**
11		* @var array
12		*
13		* @deprecated since 0.1.0
14		*/
15		public static $defaultSpecialCaseTags = array('strong', 'b', 'i', 'big', 'small', 'u', 'sub', 'sup', 'strike', 's', 'p');
		0 ignored issues – show Coding Style introduced 2016-02-09 16:38 UTC by Report Bug Copy Issue Report This line exceeds maximum limit of 120 characters; contains 125 characters Overly long lines are hard to read on any screen. Most code styles therefor impose a maximum limit on the number of characters in a line. Loading history...
16		/**
17		* @var array
18		*
19		* @deprecated since 0.1.0
20		*/
21		public static $defaultSpecialCaseChars = array('.', ',', '(', ')', '\'');
22		/**
23		* @var bool
24		*
25		* @deprecated since 0.1.0
26		*/
27		public static $defaultGroupDiffs = true;
28
29		/**
30		* @var HtmlDiffConfig
31		*/
32		protected $config;
33
34		/**
35		* @var string
36		*/
37		protected $content;
38		/**
39		* @var string
40		*/
41		protected $oldText;
42		/**
43		* @var string
44		*/
45		protected $newText;
46		/**
47		* @var array
48		*/
49		protected $oldWords = array();
50		/**
51		* @var array
52		*/
53		protected $newWords = array();
54
55		/**
56		* @var DiffCache[]
57		*/
58		private $diffCaches = array();
59
60		/**
61		* AbstractDiff constructor.
62		*
63		* @param string $oldText
64		* @param string $newText
65		* @param string $encoding
66		* @param null\|array $specialCaseTags
67		* @param null\|bool $groupDiffs
68		*/
69	11	public function __construct($oldText, $newText, $encoding = 'UTF-8', $specialCaseTags = null, $groupDiffs = null)
70		{
71	11	mb_substitute_character(0x20);
72
73	11	$this->config = HtmlDiffConfig::create()->setEncoding($encoding);
74
75	11	if ($specialCaseTags !== null) {
76	11	$this->config->setSpecialCaseTags($specialCaseTags);
77	11	}
78
79	11	if ($groupDiffs !== null) {
80		$this->config->setGroupDiffs($groupDiffs);
81		}
82
83	11	$this->oldText = $this->purifyHtml(trim($oldText));
84	11	$this->newText = $this->purifyHtml(trim($newText));
85	11	$this->content = '';
86	11	}
87
88		/**
89		* @return bool\|string
90		*/
91		abstract public function build();
92
93		/**
94		* @return DiffCache\|null
95		*/
96		protected function getDiffCache()
97		{
98		if (!$this->hasDiffCache()) {
99		return;
100		}
101
102		$hash = spl_object_hash($this->getConfig()->getCacheProvider());
103
104		if (!array_key_exists($hash, $this->diffCaches)) {
105		$this->diffCaches[$hash] = new DiffCache($this->getConfig()->getCacheProvider());
		0 ignored issues – show Bug introduced 2016-03-10 22:02 UTC by Report Bug Copy Issue Report It seems like `$this->getConfig()->getCacheProvider()` can be `null`; however, `__construct()` does not accept `null`, maybe add an additional type check? Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: /** @return stdClass\|null */ function mayReturnNull() { } function doesNotAcceptNull(stdClass $x) { } // With potential error. function withoutCheck() { $x = mayReturnNull(); doesNotAcceptNull($x); // Potential error here. } // Safe - Alternative 1 function withCheck1() { $x = mayReturnNull(); if ( ! $x instanceof stdClass) { throw new \LogicException('$x must be defined.'); } doesNotAcceptNull($x); } // Safe - Alternative 2 function withCheck2() { $x = mayReturnNull(); if ($x instanceof stdClass) { doesNotAcceptNull($x); } } Loading history...
106		}
107
108		return $this->diffCaches[$hash];
109		}
110
111		/**
112		* @return bool
113		*/
114	11	protected function hasDiffCache()
115		{
116	11	return null !== $this->getConfig()->getCacheProvider();
117		}
118
119		/**
120		* @return HtmlDiffConfig
121		*/
122	11	public function getConfig()
123		{
124	11	return $this->config;
125		}
126
127		/**
128		* @param HtmlDiffConfig $config
129		*
130		* @return AbstractDiff
131		*/
132	8	public function setConfig(HtmlDiffConfig $config)
133		{
134	8	$this->config = $config;
135
136	8	return $this;
137		}
138
139		/**
140		* @return int
141		*
142		* @deprecated since 0.1.0
143		*/
144		public function getMatchThreshold()
145		{
146		return $this->config->getMatchThreshold();
147		}
148
149		/**
150		* @param int $matchThreshold
151		*
152		* @return AbstractDiff
153		*
154		* @deprecated since 0.1.0
155		*/
156		public function setMatchThreshold($matchThreshold)
157		{
158		$this->config->setMatchThreshold($matchThreshold);
159
160		return $this;
161		}
162
163		/**
164		* @param array $chars
165		*
166		* @deprecated since 0.1.0
167		*/
168		public function setSpecialCaseChars(array $chars)
169		{
170		$this->config->setSpecialCaseChars($chars);
171		}
172
173		/**
174		* @return array\|null
175		*
176		* @deprecated since 0.1.0
177		*/
178		public function getSpecialCaseChars()
179		{
180		return $this->config->getSpecialCaseChars();
181		}
182
183		/**
184		* @param string $char
185		*
186		* @deprecated since 0.1.0
187		*/
188		public function addSpecialCaseChar($char)
189		{
190		$this->config->addSpecialCaseChar($char);
191		}
192
193		/**
194		* @param string $char
195		*
196		* @deprecated since 0.1.0
197		*/
198		public function removeSpecialCaseChar($char)
199		{
200		$this->config->removeSpecialCaseChar($char);
201		}
202
203		/**
204		* @param array $tags
205		*
206		* @deprecated since 0.1.0
207		*/
208		public function setSpecialCaseTags(array $tags = array())
209		{
210		$this->config->setSpecialCaseChars($tags);
211		}
212
213		/**
214		* @param string $tag
215		*
216		* @deprecated since 0.1.0
217		*/
218		public function addSpecialCaseTag($tag)
219		{
220		$this->config->addSpecialCaseTag($tag);
221		}
222
223		/**
224		* @param string $tag
225		*
226		* @deprecated since 0.1.0
227		*/
228		public function removeSpecialCaseTag($tag)
229		{
230		$this->config->removeSpecialCaseTag($tag);
231		}
232
233		/**
234		* @return array\|null
235		*
236		* @deprecated since 0.1.0
237		*/
238		public function getSpecialCaseTags()
239		{
240		return $this->config->getSpecialCaseTags();
241		}
242
243		/**
244		* @return string
245		*/
246		public function getOldHtml()
247		{
248		return $this->oldText;
249		}
250
251		/**
252		* @return string
253		*/
254		public function getNewHtml()
255		{
256		return $this->newText;
257		}
258
259		/**
260		* @return string
261		*/
262		public function getDifference()
263		{
264		return $this->content;
265		}
266
267		/**
268		* Clears the diff content.
269		*
270		* @return void
271		*/
272		public function clearContent()
273		{
274		$this->content = null;
275		}
276
277		/**
278		* @param bool $boolean
279		*
280		* @return $this
281		*
282		* @deprecated since 0.1.0
283		*/
284		public function setGroupDiffs($boolean)
285		{
286		$this->config->setGroupDiffs($boolean);
287
288		return $this;
289		}
290
291		/**
292		* @return bool
293		*
294		* @deprecated since 0.1.0
295		*/
296		public function isGroupDiffs()
297		{
298		return $this->config->isGroupDiffs();
299		}
300
301		/**
302		* @param string $tag
303		*
304		* @return string
305		*/
306		protected function getOpeningTag($tag)
307		{
308		return '/<'.$tag.'[^>]*/i';
309		}
310
311		/**
312		* @param string $tag
313		*
314		* @return string
315		*/
316		protected function getClosingTag($tag)
317		{
318		return '</'.$tag.'>';
319		}
320
321		/**
322		* @param string $str
323		* @param string $start
324		* @param string $end
325		*
326		* @return string
327		*/
328		protected function getStringBetween($str, $start, $end)
329		{
330		$expStr = explode($start, $str, 2);
331		if (count($expStr) > 1) {
332		$expStr = explode($end, $expStr[ 1 ]);
333		if (count($expStr) > 1) {
334		array_pop($expStr);
335
336		return implode($end, $expStr);
337		}
338		}
339
340		return '';
341		}
342
343		/**
344		* @param string $html
345		*
346		* @return string
347		*/
348	11	protected function purifyHtml($html)
349		{
350	11	if (class_exists('Tidy') && false) {
351		$config = array('output-xhtml' => true, 'indent' => false);
352		$tidy = new tidy();
353		$tidy->parseString($html, $config, 'utf8');
354		$html = (string) $tidy;
355
356		return $this->getStringBetween($html, '<body>');
		0 ignored issues – show Bug introduced 2015-11-24 18:02 UTC by Report Bug Copy Issue Report The call to `getStringBetween()` misses a required argument `$end`. This check looks for function calls that miss required arguments. Loading history...
357		}
358
359	11	return $html;
360		}
361
362	11	protected function splitInputsToWords()
363		{
364	11	$this->oldWords = $this->convertHtmlToListOfWords($this->explode($this->oldText));
365	11	$this->newWords = $this->convertHtmlToListOfWords($this->explode($this->newText));
366	11	}
367
368		/**
369		* @param string $text
370		*
371		* @return bool
372		*/
373	11	protected function isPartOfWord($text)
374		{
375	11	return ctype_alnum(str_replace($this->config->getSpecialCaseChars(), '', $text));
376		}
377
378		/**
379		* @param array $characterString
380		*
381		* @return array
382		*/
383	11	protected function convertHtmlToListOfWords($characterString)
384		{
385	11	$mode = 'character';
386	11	$current_word = '';
387	11	$words = array();
388	11	foreach ($characterString as $i => $character) {
389		switch ($mode) {
390	11	case 'character':
391	11	if ($this->isStartOfTag($character)) {
392	11	if ($current_word != '') {
393	10	$words[] = $current_word;
394	10	}
395	11	$current_word = '<';
396	11	$mode = 'tag';
397	11	} elseif (preg_match("/\s/", $character)) {
398	11	if ($current_word !== '') {
399	11	$words[] = $current_word;
400	11	}
401	11	$current_word = preg_replace('/\s+/S', ' ', $character);
402	11	$mode = 'whitespace';
403	11	} else {
404		if (
405	11	(ctype_alnum($character) && (strlen($current_word) == 0 \|\| $this->isPartOfWord($current_word))) \|\|
		0 ignored issues – show Coding Style introduced 2016-02-09 16:38 UTC by Report Bug Copy Issue Report This line exceeds maximum limit of 120 characters; contains 122 characters Overly long lines are hard to read on any screen. Most code styles therefor impose a maximum limit on the number of characters in a line. Loading history...
406	11	(in_array($character, $this->config->getSpecialCaseChars()) && isset($characterString[$i + 1]) && $this->isPartOfWord($characterString[$i + 1]))
		0 ignored issues – show Coding Style introduced 2016-02-29 16:17 UTC by Report Bug Copy Issue Report This line exceeds maximum limit of 120 characters; contains 168 characters Overly long lines are hard to read on any screen. Most code styles therefor impose a maximum limit on the number of characters in a line. Loading history...
407	11	) {
408	11	$current_word .= $character;
409	11	} else {
410	11	$words[] = $current_word;
411	11	$current_word = $character;
412		}
413		}
414	11	break;
415	11	case 'tag' :
		0 ignored issues – show Coding Style introduced 2015-11-24 18:02 UTC by Report Bug Copy Issue Report There must be no space before the colon in a CASE statement As per the PSR-2 coding standard, there must not be a space in front of the colon in case statements. switch ($selector) { case "A": //right doSomething(); break; case "B" : //wrong doSomethingElse(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
416	11	if ($this->isEndOfTag($character)) {
417	11	$current_word .= '>';
418	11	$words[] = $current_word;
419	11	$current_word = '';
420
421	11	if (!preg_match('[^\s]', $character)) {
422	11	$mode = 'whitespace';
423	11	} else {
424		$mode = 'character';
425		}
426	11	} else {
427	11	$current_word .= $character;
428		}
429	11	break;
430	11	case 'whitespace':
431	11	if ($this->isStartOfTag($character)) {
432	11	if ($current_word !== '') {
433	11	$words[] = $current_word;
434	11	}
435	11	$current_word = '<';
436	11	$mode = 'tag';
437	11	} elseif (preg_match("/\s/", $character)) {
438	10	$current_word .= $character;
439	10	$current_word = preg_replace('/\s+/S', ' ', $current_word);
440	10	} else {
441	11	if ($current_word != '') {
442	11	$words[] = $current_word;
443	11	}
444	11	$current_word = $character;
445	11	$mode = 'character';
446		}
447	11	break;
448		default:
449		break;
450		}
451	11	}
452	11	if ($current_word != '') {
453		$words[] = $current_word;
454		}
455
456	11	return $words;
457		}
458
459		/**
460		* @param string $val
461		*
462		* @return bool
463		*/
464	11	protected function isStartOfTag($val)
465		{
466	11	return $val == '<';
467		}
468
469		/**
470		* @param string $val
471		*
472		* @return bool
473		*/
474	11	protected function isEndOfTag($val)
475		{
476	11	return $val == '>';
477		}
478
479		/**
480		* @param string $value
481		*
482		* @return bool
483		*/
484		protected function isWhiteSpace($value)
485		{
486		return !preg_match('[^\s]', $value);
487		}
488
489		/**
490		* @param string $value
491		*
492		* @return array
493		*/
494	11	protected function explode($value)
495		{
496		// as suggested by @onassar
497	11	return preg_split('//u', $value);
498		}
499		}
500

caxy / php-htmldiff

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