13794840569

Committed 11 Mar 2025 05:53PM UTC coverage: 55.567%. Remained the same

Build # 13794840569

Build Type

Pull #1136

github

Committed by

web-flow

Commit Message

Merge fd0252084 into 632379dc4

Pull Request Pull Request #1136: [TASK] Use native type declarations in `ParserState`

Run Details

0 of 17 new or added lines in 1 file covered. (0.0%)

2 existing lines in 1 file now uncovered.

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0.0

/src/Parsing/ParserState.php

<?php

declare(strict_types=1);

namespace Sabberworm\CSS\Parsing;

use Sabberworm\CSS\Comment\Comment;
use Sabberworm\CSS\Settings;

/**
 * @internal since 8.7.0
 */
class ParserState
{
    /**
     * @var null
     */
    public const EOF = null;

    /**
     * @var Settings
     */
    private $parserSettings;

    /**
     * @var string
     */
    private $text;

    /**
     * @var array<int, string>
     */
    private $characters;

    /**
     * @var int<0, max>
     */
    private $currentPosition = 0;

    /**
     * will only be used if the CSS does not contain an `@charset` declaration
     *
     * @var string
     */
    private $charset;

    /**
     * @var int<1, max> $lineNumber
     */
    private $lineNumber;

    /**
     * @param string $text the complete CSS as text (i.e., usually the contents of a CSS file)
     * @param int<1, max> $lineNumber
     */
    public function __construct(string $text, Settings $parserSettings, int $lineNumber = 1)
    {
        $this->parserSettings = $parserSettings;
        $this->text = $text;
        $this->lineNumber = $lineNumber;
        $this->setCharset($this->parserSettings->getDefaultCharset());
    }

    /**
     * Sets the charset to be used if the CSS does not contain an `@charset` declaration.
     *
     * @throws SourceException if the charset is UTF-8 and the content has invalid byte sequences
     */
    public function setCharset(string $charset): void
    {
        $this->charset = $charset;
        $this->characters = $this->strsplit($this->text);
    }

    /**
     * @return int<1, max>
     */
    public function currentLine(): int
    {
        return $this->lineNumber;
    }

    /**
     * @return int<0, max>
     */
    public function currentColumn(): int
    {
        return $this->currentPosition;
    }

    public function getSettings(): Settings
    {
        return $this->parserSettings;
    }

    public function anchor(): Anchor
    {
        return new Anchor($this->currentPosition, $this);
    }

    /**
     * @param int<0, max> $position
     */
    public function setPosition(int $position): void
    {
        $this->currentPosition = $position;
    }

    /**
     * @throws UnexpectedTokenException
     */
    public function parseIdentifier(bool $ignoreCase = true): string
    {
        if ($this->isEnd()) {
            throw new UnexpectedEOFException('', '', 'identifier', $this->lineNumber);
        }
        $result = $this->parseCharacter(true);
        if ($result === null) {
            throw new UnexpectedTokenException('', $this->peek(5), 'identifier', $this->lineNumber);
        }
        $character = null;
        while (!$this->isEnd() && ($character = $this->parseCharacter(true)) !== null) {
            if (\preg_match('/[a-zA-Z0-9\\x{00A0}-\\x{FFFF}_-]/Sux', $character)) {
                $result .= $character;
            } else {
                $result .= '\\' . $character;
            }
        }
        if ($ignoreCase) {
            $result = $this->strtolower($result);
        }
        return $result;
    }

    /**
     * @throws UnexpectedEOFException
     * @throws UnexpectedTokenException
     */
    public function parseCharacter(bool $isForIdentifier): ?string
    {
        if ($this->peek() === '\\') {
            $this->consume('\\');
            if ($this->comes('\\n') || $this->comes('\\r')) {
                return '';
            }
            if (\preg_match('/[0-9a-fA-F]/Su', $this->peek()) === 0) {
                return $this->consume(1);
            }
            $hexCodePoint = $this->consumeExpression('/^[0-9a-fA-F]{1,6}/u', 6);
            if ($this->strlen($hexCodePoint) < 6) {
                // Consume whitespace after incomplete unicode escape
                if (\preg_match('/\\s/isSu', $this->peek())) {
                    if ($this->comes('\\r\\n')) {
                        $this->consume(2);
                    } else {
                        $this->consume(1);
                    }
                }
            }
            $codePoint = \intval($hexCodePoint, 16);
            $utf32EncodedCharacter = '';
            for ($i = 0; $i < 4; ++$i) {
                $utf32EncodedCharacter .= \chr($codePoint & 0xff);
                $codePoint = $codePoint >> 8;
            }
            return \iconv('utf-32le', $this->charset, $utf32EncodedCharacter);
        }
        if ($isForIdentifier) {
            $peek = \ord($this->peek());
            // Ranges: a-z A-Z 0-9 - _
            if (
                ($peek >= 97 && $peek <= 122)
                || ($peek >= 65 && $peek <= 90)
                || ($peek >= 48 && $peek <= 57)
                || ($peek === 45)
                || ($peek === 95)
                || ($peek > 0xa1)
            ) {
                return $this->consume(1);
            }
        } else {
            return $this->consume(1);
        }
        return null;
    }

    /**
     * @return array<int, Comment>|void
     *
     * @throws UnexpectedEOFException
     * @throws UnexpectedTokenException
     */
    public function consumeWhiteSpace(): array
    {
        $comments = [];
        do {
            while (\preg_match('/\\s/isSu', $this->peek()) === 1) {
                $this->consume(1);
            }
            if ($this->parserSettings->usesLenientParsing()) {
                try {
                    $comment = $this->consumeComment();
                } catch (UnexpectedEOFException $e) {
                    $this->currentPosition = \count($this->characters);
                    return $comments;
                }
            } else {
                $comment = $this->consumeComment();
            }
            if ($comment !== false) {
                $comments[] = $comment;
            }
        } while ($comment !== false);
        return $comments;
    }

    public function comes(string $string, bool $caseInsensitive = false): bool
    {
        $peek = $this->peek(\strlen($string));
        return ($peek == '')
            ? false
            : $this->streql($peek, $string, $caseInsensitive);
    }

    /**
     * @param int<1, max> $length
     * @param int<0, max> $offset
     */
    public function peek(int $length = 1, int $offset = 0): string
    {
        $offset += $this->currentPosition;
        if ($offset >= \count($this->characters)) {
            return '';
        }
        return $this->substr($offset, $length);
    }

    /**
     * @param string|int<1, max> $value
     *
     * @throws UnexpectedEOFException
     * @throws UnexpectedTokenException
     */
    public function consume($value = 1): string
    {
        if (\is_string($value)) {
            $numberOfLines = \substr_count($value, "\n");
            $length = $this->strlen($value);
            if (!$this->streql($this->substr($this->currentPosition, $length), $value)) {
                throw new UnexpectedTokenException(
                    $value,
                    $this->peek(\max($length, 5)),
                    'literal',
                    $this->lineNumber
                );
            }
            $this->lineNumber += $numberOfLines;
            $this->currentPosition += $this->strlen($value);
            return $value;
        } else {
            if ($this->currentPosition + $value > \count($this->characters)) {
                throw new UnexpectedEOFException((string) $value, $this->peek(5), 'count', $this->lineNumber);
            }
            $result = $this->substr($this->currentPosition, $value);
            $numberOfLines = \substr_count($result, "\n");
            $this->lineNumber += $numberOfLines;
            $this->currentPosition += $value;
            return $result;
        }
    }

    /**
     * @param string $expression
     * @param int<1, max>|null $maximumLength
     *
     * @throws UnexpectedEOFException
     * @throws UnexpectedTokenException
     */
    public function consumeExpression(string $expression, ?int $maximumLength = null): string
    {
        $matches = null;
        $input = $maximumLength !== null ? $this->peek($maximumLength) : $this->inputLeft();
        if (\preg_match($expression, $input, $matches, PREG_OFFSET_CAPTURE) === 1) {
            return $this->consume($matches[0][0]);
        }
        throw new UnexpectedTokenException($expression, $this->peek(5), 'expression', $this->lineNumber);
    }

    /**
     * @return Comment|false
     */
    public function consumeComment()
    {
        $comment = false;
        if ($this->comes('/*')) {
            $lineNumber = $this->lineNumber;
            $this->consume(1);
            $comment = '';
            while (($char = $this->consume(1)) !== '') {
                $comment .= $char;
                if ($this->comes('*/')) {
                    $this->consume(2);
                    break;
                }
            }
        }

        if ($comment !== false) {
            // We skip the * which was included in the comment.
            return new Comment(\substr($comment, 1), $lineNumber);
        }

        return $comment;
    }

    public function isEnd(): bool
    {
        return $this->currentPosition >= \count($this->characters);
    }

    /**
     * @param array<array-key, string>|string $stopCharacters
     * @param array<int, Comment> $comments
     *
     * @throws UnexpectedEOFException
     * @throws UnexpectedTokenException
     */
    public function consumeUntil(
        $stopCharacters,
        bool $includeEnd = false,
        bool $consumeEnd = false,
        array &$comments = []
    ): string {
        $stopCharacters = \is_array($stopCharacters) ? $stopCharacters : [$stopCharacters];
        $consumedCharacters = '';
        $start = $this->currentPosition;

        while (!$this->isEnd()) {
            $character = $this->consume(1);
            if (\in_array($character, $stopCharacters, true)) {
                if ($includeEnd) {
                    $consumedCharacters .= $character;
                } elseif (!$consumeEnd) {
                    $this->currentPosition -= $this->strlen($character);
                }
                return $consumedCharacters;
            }
            $consumedCharacters .= $character;
            if ($comment = $this->consumeComment()) {
                $comments[] = $comment;
            }
        }

        if (\in_array(self::EOF, $stopCharacters, true)) {
            return $consumedCharacters;
        }

        $this->currentPosition = $start;
        throw new UnexpectedEOFException(
            'One of ("' . \implode('","', $stopCharacters) . '")',
            $this->peek(5),
            'search',
            $this->lineNumber
        );
    }

    private function inputLeft(): string
    {
        return $this->substr($this->currentPosition, -1);
    }

    public function streql(string $string1, string $string2, bool $caseInsensitive = true): bool
    {
        if ($caseInsensitive) {
            return $this->strtolower($string1) === $this->strtolower($string2);
        } else {
            return $string1 === $string2;
        }
    }

    /**
     * @param int<1, max> $numberOfCharacters
     */
    public function backtrack(int $numberOfCharacters): void
    {
        $this->currentPosition -= $numberOfCharacters;
    }

    /**
     * @return int<0, max>
     */
    public function strlen(string $string): int
    {
        if ($this->parserSettings->hasMultibyteSupport()) {
            return \mb_strlen($string, $this->charset);
        } else {
            return \strlen($string);
        }
    }

    /**
     * @param int<0, max> $offset
     */
    private function substr(int $offset, int $length): string
    {
        if ($length < 0) {
            $length = \count($this->characters) - $offset + $length;
        }
        if ($offset + $length > \count($this->characters)) {
            $length = \count($this->characters) - $offset;
        }
        $result = '';
        while ($length > 0) {
            $result .= $this->characters[$offset];
            $offset++;
            $length--;
        }
        return $result;
    }

    private function strtolower(string $string): string
    {
        if ($this->parserSettings->hasMultibyteSupport()) {
            return \mb_strtolower($string, $this->charset);
        } else {
            return \strtolower($string);
        }
    }

    /**
     * @return array<int, string>
     *
     * @throws SourceException if the charset is UTF-8 and the string contains invalid byte sequences
     */
    private function strsplit(string $string): array
    {
        if ($this->parserSettings->hasMultibyteSupport()) {
            if ($this->streql($this->charset, 'utf-8')) {
                $result = \preg_split('//u', $string, -1, PREG_SPLIT_NO_EMPTY);
                if (!\is_array($result)) {
                    throw new SourceException('`preg_split` failed with error ' . \preg_last_error());
                }
                return $result;
            } else {
                $length = \mb_strlen($string, $this->charset);
                $result = [];
                for ($i = 0; $i < $length; ++$i) {
                    $result[] = \mb_substr($string, $i, 1, $this->charset);
                }
                return $result;
            }
        } else {
            if ($string === '') {
                return [];
            } else {
                return \str_split($string);
            }
        }
    }

    /**
     * @param int<0, max> $offset
     *
     * @return int|false
     */
    private function strpos(string $haystack, string $needle, int $offset)
    {
        if ($this->parserSettings->hasMultibyteSupport()) {
            return \mb_strpos($haystack, $needle, $offset, $this->charset);
        } else {
            return \strpos($haystack, $needle, $offset);
        }
    }
}

1	<?php
2
3	declare(strict_types=1);
4
5	namespace Sabberworm\CSS\Parsing;
6
7	use Sabberworm\CSS\Comment\Comment;
8	use Sabberworm\CSS\Settings;
9
10	/**
11	* @internal since 8.7.0
12	*/
13	class ParserState
14	{
15	/**
16	* @var null
17	*/
18	public const EOF = null;
19
20	/**
21	* @var Settings
22	*/
23	private $parserSettings;
24
25	/**
26	* @var string
27	*/
28	private $text;
29
30	/**
31	* @var array<int, string>
32	*/
33	private $characters;
34
35	/**
36	* @var int<0, max>
37	*/
38	private $currentPosition = 0;
39
40	/**
41	* will only be used if the CSS does not contain an `@charset` declaration
42	*
43	* @var string
44	*/
45	private $charset;
46
47	/**
48	* @var int<1, max> $lineNumber
49	*/
50	private $lineNumber;
51
52	/**
53	* @param string $text the complete CSS as text (i.e., usually the contents of a CSS file)
54	* @param int<1, max> $lineNumber
55	*/
NEW 56	public function __construct(string $text, Settings $parserSettings, int $lineNumber = 1)	×
57	{
58	$this->parserSettings = $parserSettings;	×
59	$this->text = $text;	×
60	$this->lineNumber = $lineNumber;	×
61	$this->setCharset($this->parserSettings->getDefaultCharset());	×
62	}	×
63
64	/**
65	* Sets the charset to be used if the CSS does not contain an `@charset` declaration.
66	*
67	* @throws SourceException if the charset is UTF-8 and the content has invalid byte sequences
68	*/
69	public function setCharset(string $charset): void	×
70	{
71	$this->charset = $charset;	×
72	$this->characters = $this->strsplit($this->text);	×
73	}	×
74
75	/**
76	* @return int<1, max>
77	*/
NEW 78	public function currentLine(): int	×
79	{
80	return $this->lineNumber;	×
81	}
82
83	/**
84	* @return int<0, max>
85	*/
NEW 86	public function currentColumn(): int	×
87	{
88	return $this->currentPosition;	×
89	}
90
NEW 91	public function getSettings(): Settings	×
92	{
93	return $this->parserSettings;	×
94	}
95
96	public function anchor(): Anchor	×
97	{
98	return new Anchor($this->currentPosition, $this);	×
99	}
100
101	/**
102	* @param int<0, max> $position
103	*/
NEW 104	public function setPosition(int $position): void	×
105	{
106	$this->currentPosition = $position;	×
107	}	×
108
109	/**
110	* @throws UnexpectedTokenException
111	*/
NEW 112	public function parseIdentifier(bool $ignoreCase = true): string	×
113	{
114	if ($this->isEnd()) {	×
115	throw new UnexpectedEOFException('', '', 'identifier', $this->lineNumber);	×
116	}
117	$result = $this->parseCharacter(true);	×
118	if ($result === null) {	×
119	throw new UnexpectedTokenException('', $this->peek(5), 'identifier', $this->lineNumber);	×
120	}
121	$character = null;	×
122	while (!$this->isEnd() && ($character = $this->parseCharacter(true)) !== null) {	×
123	if (\preg_match('/[a-zA-Z0-9\\x{00A0}-\\x{FFFF}_-]/Sux', $character)) {	×
124	$result .= $character;	×
125	} else {
126	$result .= '\\' . $character;	×
127	}
128	}
129	if ($ignoreCase) {	×
130	$result = $this->strtolower($result);	×
131	}
132	return $result;	×
133	}
134
135	/**
136	* @throws UnexpectedEOFException
137	* @throws UnexpectedTokenException
138	*/
NEW 139	public function parseCharacter(bool $isForIdentifier): ?string	×
140	{
141	if ($this->peek() === '\\') {	×
142	$this->consume('\\');	×
143	if ($this->comes('\\n') \|\| $this->comes('\\r')) {	×
144	return '';	×
145	}
146	if (\preg_match('/[0-9a-fA-F]/Su', $this->peek()) === 0) {	×
147	return $this->consume(1);	×
148	}
149	$hexCodePoint = $this->consumeExpression('/^[0-9a-fA-F]{1,6}/u', 6);	×
150	if ($this->strlen($hexCodePoint) < 6) {	×
151	// Consume whitespace after incomplete unicode escape
152	if (\preg_match('/\\s/isSu', $this->peek())) {	×
153	if ($this->comes('\\r\\n')) {	×
154	$this->consume(2);	×
155	} else {
156	$this->consume(1);	×
157	}
158	}
159	}
160	$codePoint = \intval($hexCodePoint, 16);	×
161	$utf32EncodedCharacter = '';	×
162	for ($i = 0; $i < 4; ++$i) {	×
163	$utf32EncodedCharacter .= \chr($codePoint & 0xff);	×
164	$codePoint = $codePoint >> 8;	×
165	}
166	return \iconv('utf-32le', $this->charset, $utf32EncodedCharacter);	×
167	}
168	if ($isForIdentifier) {	×
169	$peek = \ord($this->peek());	×
170	// Ranges: a-z A-Z 0-9 - _
171	if (
172	($peek >= 97 && $peek <= 122)	×
173	\|\| ($peek >= 65 && $peek <= 90)	×
174	\|\| ($peek >= 48 && $peek <= 57)	×
175	\|\| ($peek === 45)	×
176	\|\| ($peek === 95)	×
177	\|\| ($peek > 0xa1)	×
178	) {
179	return $this->consume(1);	×
180	}
181	} else {
182	return $this->consume(1);	×
183	}
184	return null;	×
185	}
186
187	/**
188	* @return array<int, Comment>\|void
189	*
190	* @throws UnexpectedEOFException
191	* @throws UnexpectedTokenException
192	*/
193	public function consumeWhiteSpace(): array	×
194	{
195	$comments = [];	×
196	do {
197	while (\preg_match('/\\s/isSu', $this->peek()) === 1) {	×
198	$this->consume(1);	×
199	}
200	if ($this->parserSettings->usesLenientParsing()) {	×
201	try {
202	$comment = $this->consumeComment();	×
203	} catch (UnexpectedEOFException $e) {	×
204	$this->currentPosition = \count($this->characters);	×
205	return $comments;	×
206	}
207	} else {
208	$comment = $this->consumeComment();	×
209	}
210	if ($comment !== false) {	×
211	$comments[] = $comment;	×
212	}
213	} while ($comment !== false);	×
214	return $comments;	×
215	}
216
NEW 217	public function comes(string $string, bool $caseInsensitive = false): bool	×
218	{
219	$peek = $this->peek(\strlen($string));	×
220	return ($peek == '')	×
221	? false	×
222	: $this->streql($peek, $string, $caseInsensitive);	×
223	}
224
225	/**
226	* @param int<1, max> $length
227	* @param int<0, max> $offset
228	*/
NEW 229	public function peek(int $length = 1, int $offset = 0): string	×
230	{
231	$offset += $this->currentPosition;	×
232	if ($offset >= \count($this->characters)) {	×
233	return '';	×
234	}
235	return $this->substr($offset, $length);	×
236	}
237
238	/**
239	* @param string\|int<1, max> $value
240	*
241	* @throws UnexpectedEOFException
242	* @throws UnexpectedTokenException
243	*/
244	public function consume($value = 1): string	×
245	{
246	if (\is_string($value)) {	×
247	$numberOfLines = \substr_count($value, "\n");	×
248	$length = $this->strlen($value);	×
249	if (!$this->streql($this->substr($this->currentPosition, $length), $value)) {	×
250	throw new UnexpectedTokenException(	×
251	$value,	×
252	$this->peek(\max($length, 5)),	×
253	'literal',	×
254	$this->lineNumber	×
255	);
256	}
257	$this->lineNumber += $numberOfLines;	×
258	$this->currentPosition += $this->strlen($value);	×
259	return $value;	×
260	} else {
261	if ($this->currentPosition + $value > \count($this->characters)) {	×
262	throw new UnexpectedEOFException((string) $value, $this->peek(5), 'count', $this->lineNumber);	×
263	}
264	$result = $this->substr($this->currentPosition, $value);	×
265	$numberOfLines = \substr_count($result, "\n");	×
266	$this->lineNumber += $numberOfLines;	×
267	$this->currentPosition += $value;	×
268	return $result;	×
269	}
270	}
271
272	/**
273	* @param string $expression
274	* @param int<1, max>\|null $maximumLength
275	*
276	* @throws UnexpectedEOFException
277	* @throws UnexpectedTokenException
278	*/
NEW 279	public function consumeExpression(string $expression, ?int $maximumLength = null): string	×
280	{
281	$matches = null;	×
282	$input = $maximumLength !== null ? $this->peek($maximumLength) : $this->inputLeft();	×
283	if (\preg_match($expression, $input, $matches, PREG_OFFSET_CAPTURE) === 1) {	×
284	return $this->consume($matches[0][0]);	×
285	}
286	throw new UnexpectedTokenException($expression, $this->peek(5), 'expression', $this->lineNumber);	×
287	}
288
289	/**
290	* @return Comment\|false
291	*/
292	public function consumeComment()	×
293	{
294	$comment = false;	×
295	if ($this->comes('/*')) {	×
296	$lineNumber = $this->lineNumber;	×
297	$this->consume(1);	×
298	$comment = '';	×
299	while (($char = $this->consume(1)) !== '') {	×
300	$comment .= $char;	×
301	if ($this->comes('*/')) {	×
302	$this->consume(2);	×
303	break;	×
304	}
305	}
306	}
307
308	if ($comment !== false) {	×
309	// We skip the * which was included in the comment.
310	return new Comment(\substr($comment, 1), $lineNumber);	×
311	}
312
313	return $comment;	×
314	}
315
316	public function isEnd(): bool	×
317	{
318	return $this->currentPosition >= \count($this->characters);	×
319	}
320
321	/**
322	* @param array<array-key, string>\|string $stopCharacters
323	* @param array<int, Comment> $comments
324	*
325	* @throws UnexpectedEOFException
326	* @throws UnexpectedTokenException
327	*/
328	public function consumeUntil(	×
329	$stopCharacters,
330	bool $includeEnd = false,
331	bool $consumeEnd = false,
332	array &$comments = []
333	): string {
334	$stopCharacters = \is_array($stopCharacters) ? $stopCharacters : [$stopCharacters];	×
335	$consumedCharacters = '';	×
336	$start = $this->currentPosition;	×
337
338	while (!$this->isEnd()) {	×
339	$character = $this->consume(1);	×
340	if (\in_array($character, $stopCharacters, true)) {	×
341	if ($includeEnd) {	×
342	$consumedCharacters .= $character;	×
343	} elseif (!$consumeEnd) {	×
344	$this->currentPosition -= $this->strlen($character);	×
345	}
346	return $consumedCharacters;	×
347	}
348	$consumedCharacters .= $character;	×
349	if ($comment = $this->consumeComment()) {	×
350	$comments[] = $comment;	×
351	}
352	}
353
354	if (\in_array(self::EOF, $stopCharacters, true)) {	×
355	return $consumedCharacters;	×
356	}
357
358	$this->currentPosition = $start;	×
359	throw new UnexpectedEOFException(	×
360	'One of ("' . \implode('","', $stopCharacters) . '")',	×
361	$this->peek(5),	×
362	'search',	×
363	$this->lineNumber	×
364	);
365	}
366
367	private function inputLeft(): string	×
368	{
369	return $this->substr($this->currentPosition, -1);	×
370	}
371
NEW 372	public function streql(string $string1, string $string2, bool $caseInsensitive = true): bool	×
373	{
374	if ($caseInsensitive) {	×
375	return $this->strtolower($string1) === $this->strtolower($string2);	×
376	} else {
377	return $string1 === $string2;	×
378	}
379	}
380
381	/**
382	* @param int<1, max> $numberOfCharacters
383	*/
NEW 384	public function backtrack(int $numberOfCharacters): void	×
385	{
386	$this->currentPosition -= $numberOfCharacters;	×
387	}	×
388
389	/**
390	* @return int<0, max>
391	*/
NEW 392	public function strlen(string $string): int	×
393	{
394	if ($this->parserSettings->hasMultibyteSupport()) {	×
395	return \mb_strlen($string, $this->charset);	×
396	} else {
397	return \strlen($string);	×
398	}
399	}
400
401	/**
402	* @param int<0, max> $offset
403	*/
NEW 404	private function substr(int $offset, int $length): string	×
405	{
406	if ($length < 0) {	×
407	$length = \count($this->characters) - $offset + $length;	×
408	}
409	if ($offset + $length > \count($this->characters)) {	×
410	$length = \count($this->characters) - $offset;	×
411	}
412	$result = '';	×
413	while ($length > 0) {	×
414	$result .= $this->characters[$offset];	×
415	$offset++;	×
416	$length--;	×
417	}
418	return $result;	×
419	}
420
NEW 421	private function strtolower(string $string): string	×
422	{
423	if ($this->parserSettings->hasMultibyteSupport()) {	×
424	return \mb_strtolower($string, $this->charset);	×
425	} else {
426	return \strtolower($string);	×
427	}
428	}
429
430	/**
431	* @return array<int, string>
432	*
433	* @throws SourceException if the charset is UTF-8 and the string contains invalid byte sequences
434	*/
NEW 435	private function strsplit(string $string): array	×
436	{
437	if ($this->parserSettings->hasMultibyteSupport()) {	×
438	if ($this->streql($this->charset, 'utf-8')) {	×
439	$result = \preg_split('//u', $string, -1, PREG_SPLIT_NO_EMPTY);	×
440	if (!\is_array($result)) {	×
441	throw new SourceException('`preg_split` failed with error ' . \preg_last_error());	×
442	}
443	return $result;	×
444	} else {
445	$length = \mb_strlen($string, $this->charset);	×
446	$result = [];	×
447	for ($i = 0; $i < $length; ++$i) {	×
448	$result[] = \mb_substr($string, $i, 1, $this->charset);	×
449	}
450	return $result;	×
451	}
452	} else {
453	if ($string === '') {	×
454	return [];	×
455	} else {
456	return \str_split($string);	×
457	}
458	}
459	}
460
461	/**
462	* @param int<0, max> $offset
463	*
464	* @return int\|false
465	*/
NEW 466	private function strpos(string $haystack, string $needle, int $offset)	×
467	{
UNCOV 468	if ($this->parserSettings->hasMultibyteSupport()) {	×
469	return \mb_strpos($haystack, $needle, $offset, $this->charset);	×
470	} else {
UNCOV 471	return \strpos($haystack, $needle, $offset);	×
472	}
473	}
474	}

MyIntervals / PHP-CSS-Parser / 13794840569

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