AbstractParser::parseComparison() - Code Metrics - Cloudstek/scim-filter-parser - Measure and Improve Code Quality continuously with Scrutinizer

AbstractParser::parseComparison() B
last analyzed 2022-03-22 00:38 UTC

↳ Parent: AbstractParser

Complexity

Conditions	6
Paths	6

Size

Total Lines	32
Code Lines	21

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	6
eloc	21
nc	6
nop	2
dl	0
loc	32
rs	8.9617
c	1
b	0
f	0

<?php

declare(strict_types=1);

namespace Cloudstek\SCIM\FilterParser;

use Cloudstek\SCIM\FilterParser\Exception\UnexpectedValueException;
use Nette\Tokenizer;

/**
 * Abstract parser.
 */
abstract class AbstractParser
{
    protected const T_NUMBER = 10;
    protected const T_STRING = 11;
    protected const T_BOOL = 12;
    protected const T_NULL = 13;

    protected const T_PAREN_OPEN = 21;
    protected const T_PAREN_CLOSE = 22;
    protected const T_BRACKET_OPEN = 23;
    protected const T_BRACKET_CLOSE = 24;

    protected const T_NEGATION = 30;
    protected const T_LOG_OP = 31;
    protected const T_COMP_OP = 32;

    protected const T_NAME = 40;
    protected const T_SUBATTR = 41;

    protected Tokenizer\Tokenizer $tokenizer;

    protected ParserMode $mode;
filter:
    dependency_paths: ["lib/*"]

    /**
     * Abstract parser.
     *
     * @param ParserMode $mode Parser mode.
     */
    public function __construct(ParserMode $mode)
    {
        $patterns = [
            self::T_NUMBER => '\d+(?:\.\d+)?',
            self::T_STRING => '\"[^\"]*\"',
            self::T_BOOL => 'true|false',
            self::T_NULL => 'null',
            self::T_PAREN_OPEN => '\(',
            self::T_PAREN_CLOSE => '\)',
            self::T_BRACKET_OPEN => '\[',
            self::T_BRACKET_CLOSE => '\]',
            self::T_NEGATION => 'not\s+',
            self::T_LOG_OP => '\s+(?:and|or)\s+',
            self::T_COMP_OP => '\s(?:(?:eq|ne|co|sw|ew|gt|lt|ge|le)\s+|pr)',
            self::T_NAME => '(?:(?:[^\"]+\:)+)?[\-\_a-z0-9]+(?:\.[\-\_a-z0-9]+)?',
        ];

        if ($mode === ParserMode::PATH) {
            $patterns[self::T_SUBATTR] = '\.[\-\_a-z0-9]+$';
        }

        // Sort patterns by key as constant value determines order.
        ksort($patterns);

        $this->tokenizer = new Tokenizer\Tokenizer(
            $patterns,
            'i'
        );

        $this->mode = $mode;
    }

    /**
     * Parse.
     *
     * @param string $input
     *
     * @return AST\Node|AST\Path|null
     */
    abstract public function parse(string $input);

    /**
     * Parse inner.
     *
     * @param Tokenizer\Stream $stream
     * @param bool             $inValuePath
     *
     * @throws Tokenizer\Exception
     *
     * @return AST\Node|null
     */
    protected function parseInner(Tokenizer\Stream $stream, bool $inValuePath = false): ?AST\Node
    {
        $node = null;

        if ($stream->isNext(self::T_PAREN_OPEN)) {
            // Parentheses
            $node = $this->parseParentheses($stream);

            if ($node === null) {
                return null;
            }
        } elseif ($stream->isNext(self::T_NEGATION)) {
            // Negation
            $node = $this->parseNegation($stream, $inValuePath);

            if ($node === null) {
                return null;
            }
        } elseif ($stream->isNext(self::T_NAME)) {
            // Comparison or value path
            $node = $this->parseAttributePath($stream, $inValuePath);

            if ($node instanceof AST\AttributePath) {
                $node = $this->parseComparison($stream, $node);
            }
        }

        // Make sure we only return nodes, not paths.
        if ($node !== null && $node instanceof AST\Node) {
            // Logical connective
            if ($stream->isNext(self::T_LOG_OP)) {
                return $this->parseConnective($stream, $node, $inValuePath);
            }

            return $node;
        }

        throw new UnexpectedValueException($stream);
    }

    /**
     * Parse filter in parentheses.
     *
     * @param Tokenizer\Stream $stream
     *
     * @throws Tokenizer\Exception
     *
     * @return AST\Node|AST\Path|null
     */
    protected function parseParentheses(Tokenizer\Stream $stream)
    {
        $stream->consumeToken(self::T_PAREN_OPEN);
        $filter = $this->joinUntilMatchingParenthesis($stream);
        $stream->consumeToken(self::T_PAREN_CLOSE);

        if (empty($filter)) {
            return null;
        }

        return $this->parse($filter);
    }

    /**
     * Parse negation.
     *
     * @param Tokenizer\Stream $stream
     * @param bool             $inValuePath
     *
     * @throws Tokenizer\Exception
     *
     * @return AST\Node|null
     */
    protected function parseNegation(Tokenizer\Stream $stream, bool $inValuePath = false): ?AST\Node
    {
        $stream->consumeToken(self::T_NEGATION);
        $stream->consumeToken(self::T_PAREN_OPEN);
        $filter = $this->joinUntilMatchingParenthesis($stream);
        $stream->consumeToken(self::T_PAREN_CLOSE);

        if (empty($filter)) {
            return null;
        }

        $node = $this->parseInner($this->tokenizer->tokenize($filter), $inValuePath);

        if ($node === null) {
            return null;
        }

        return new AST\Negation($node);
    }

    /**
     * Parse attribute path.
     *
     * @param Tokenizer\Stream $stream
     * @param bool             $inValuePath
     *
     * @throws Tokenizer\Exception
     *
     * @return AST\Path
     */
    protected function parseAttributePath(Tokenizer\Stream $stream, bool $inValuePath = false): AST\Path
    {
        $name = $stream->consumeToken(self::T_NAME)->value;

        // Attribute scheme
        $scheme = null;

        if (strpos($name, ':') !== false) {
            /** @var int $lastColonPos */
            $lastColonPos = strrpos($name, ':');
            $scheme = substr($name, 0, $lastColonPos);
            $name = substr($name, $lastColonPos + 1);
        }

        // Attribute path
        $attributePath = new AST\AttributePath($scheme, explode('.', $name));

        // Value path (only if not in value path already
        if ($stream->isNext(self::T_BRACKET_OPEN)) {
            if ($inValuePath === true || count($attributePath) !== 1) {
                throw new UnexpectedValueException($stream);
            }

            return $this->parseValuePath($stream, $attributePath);
        }

        return $attributePath;
    }

    /**
     * Parse value path.
     *
     * @param Tokenizer\Stream  $stream
     * @param AST\AttributePath $attributePath
     *
     * @throws Tokenizer\Exception
     *
     * @return AST\ValuePath
     */
    protected function parseValuePath(Tokenizer\Stream $stream, AST\AttributePath $attributePath): AST\ValuePath
    {
        // Save position to report exception coordinates later
        $startPos = $stream->position + 1;

        // Parse
        $stream->consumeToken(self::T_BRACKET_OPEN);
        $node = $this->parseInner($stream, true);
        $stream->consumeToken(self::T_BRACKET_CLOSE);

        // Correct attribute path for node.
        try {
            $node = $this->updateValuePathAttributePath($attributePath, $node);
        } catch (Tokenizer\Exception $ex) {
            // Reset stream position to value path start to correct exception coordinates.
            $stream->position = $startPos;

            throw new UnexpectedValueException($stream);
        }

        return new AST\ValuePath($attributePath, $node);
    }

    /**
     * Parse comparison.
     *
     * @param Tokenizer\Stream  $stream
     * @param AST\AttributePath $attributePath
     *
     * @throws Tokenizer\Exception
     *
     * @return AST\Connective|AST\Comparison
     */
    protected function parseComparison(
        Tokenizer\Stream $stream,
        AST\AttributePath $attributePath
    ) {
        $operator = trim($stream->consumeValue(self::T_COMP_OP));
        $value = null;

        if (strcasecmp($operator, 'pr') <> 0) {
            $value = $stream->consumeToken(self::T_STRING, self::T_NUMBER, self::T_BOOL, self::T_NULL);

            switch ($value->type) {
                case self::T_STRING:
                    $value = trim($value->value, '"');
                    break;
                case self::T_NUMBER:
                    if (strpos($value->value, '.') !== false) {
                        $value = floatval($value->value);
                        break;
                    }

                    $value = intval($value->value);
                    break;
                case self::T_BOOL:
                    $value = strcasecmp($value->value, 'true') === 0;
                    break;
                default:
                    $value = null;
                    break;
            }
        }

        return new AST\Comparison($attributePath, $operator, $value);
    }

    /**
     * Parse logical connective (and/or).
     *
     * @param Tokenizer\Stream $stream
     * @param AST\Node         $leftNode
     * @param bool             $inValuePath
     *
     * @throws Tokenizer\Exception
     *
     * @return AST\Connective
     */
    protected function parseConnective(
        Tokenizer\Stream $stream,
        AST\Node $leftNode,
        bool $inValuePath = false
    ): AST\Connective {
        // Logical operator
        $logOp = trim($stream->consumeToken(self::T_LOG_OP)->value);

        $isConjunction = strcasecmp($logOp, 'and') === 0;

        // Save position to report exception coordinates later
        $startPos = $stream->position + 1;

        // Parse right hand node
        $rightNode = $this->parseInner($stream, $inValuePath);

        if ($rightNode === null) {
            // Reset stream position to value path start to correct exception coordinates.
            $stream->position = $startPos;

            throw new UnexpectedValueException($stream);
        }

        // Connective nodes
        $nodes = [$leftNode, $rightNode];

        // Merge consecutive connectives of the same type into one connective.
        if (
            ($rightNode instanceof AST\Conjunction && $isConjunction === true)
            || ($rightNode instanceof AST\Disjunction && $isConjunction === false)
        ) {
            $rightNodes = $rightNode->getNodes();

            $nodes = array_merge([$leftNode], $rightNodes);
        }

        return $isConjunction === true
            ? new AST\Conjunction($nodes)
            : new AST\Disjunction($nodes);
    }

    /**
     * Prepend attribute path to node.
     *
     * @param AST\AttributePath $attributePath
     * @param AST\Node|null     $node
     *
     * @throws Tokenizer\Exception When node is null or not a valid node.
     *
     * @return AST\Node
     */
    protected function updateValuePathAttributePath(AST\AttributePath $attributePath, ?AST\Node $node): AST\Node
    {
        if ($node instanceof AST\Comparison) {
            $names = array_merge($attributePath->getNames(), $node->getAttributePath()->getNames());

            $node->setAttributePath(
                new AST\AttributePath(
                    $attributePath->getSchema(),
                    $names
                )
            );

            return $node;
        }

        if ($node instanceof AST\Negation) {
            $node->setNode($this->updateValuePathAttributePath($attributePath, $node->getNode()));

            return $node;
        }

        if ($node instanceof AST\Connective) {
            foreach ($node->getNodes() as $subNode) {
                $this->updateValuePathAttributePath($attributePath, $subNode);
            }

            return $node;
        }

        throw new Tokenizer\Exception('Invalid value path.');
    }

    /**
     * Join values until matching
     *
     * @param Tokenizer\Stream $stream
     *
     * @throws Tokenizer\Exception
     * @return string
     */
    protected function joinUntilMatchingParenthesis(Tokenizer\Stream $stream): string
    {
        $pos = $stream->position + 1;
        $numTokens = count($stream->tokens);
        $level = 1;
        $result = '';

        if ($pos >= $numTokens) {
            throw new Tokenizer\Exception('Unexpected end of string');
        }

        for ($i = $pos; $pos < $numTokens; $i++) {
            $token = $stream->tokens[$i];

            if ($token->type === self::T_PAREN_OPEN) {
                $level++;
            } elseif ($token->type === self::T_PAREN_CLOSE) {
                $level--;

                if ($level === 0) {
                    $stream->position = $i - 1;
                    break;
                }
            }

            $result .= $token->value;
        }

        return $result;
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace Cloudstek\SCIM\FilterParser;
6
7			use Cloudstek\SCIM\FilterParser\Exception\UnexpectedValueException;
8			use Nette\Tokenizer;
9
10			/**
11			* Abstract parser.
12			*/
13			abstract class AbstractParser
14			{
15			protected const T_NUMBER = 10;
16			protected const T_STRING = 11;
17			protected const T_BOOL = 12;
18			protected const T_NULL = 13;
19
20			protected const T_PAREN_OPEN = 21;
21			protected const T_PAREN_CLOSE = 22;
22			protected const T_BRACKET_OPEN = 23;
23			protected const T_BRACKET_CLOSE = 24;
24
25			protected const T_NEGATION = 30;
26			protected const T_LOG_OP = 31;
27			protected const T_COMP_OP = 32;
28
29			protected const T_NAME = 40;
30			protected const T_SUBATTR = 41;
31
32			protected Tokenizer\Tokenizer $tokenizer;
33
34			protected ParserMode $mode;
			1 ignored issue – show Bug introduced 2022-03-22 00:38 UTC by Report Bug Copy Issue Report The type `Cloudstek\SCIM\FilterParser\ParserMode` was not found. Maybe you did not declare it correctly or list all dependencies? The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g. `excluded_paths: ["lib/"]`, you can move it to the dependency path list as follows: filter: dependency_paths: ["lib/"] For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths Loading history...
35
36			/**
37			* Abstract parser.
38			*
39			* @param ParserMode $mode Parser mode.
40			*/
41			public function __construct(ParserMode $mode)
42			{
43			$patterns = [
44			self::T_NUMBER => '\d+(?:\.\d+)?',
45			self::T_STRING => '\"[^\"]*\"',
46			self::T_BOOL => 'true\|false',
47			self::T_NULL => 'null',
48			self::T_PAREN_OPEN => '\(',
49			self::T_PAREN_CLOSE => '\)',
50			self::T_BRACKET_OPEN => '\[',
51			self::T_BRACKET_CLOSE => '\]',
52			self::T_NEGATION => 'not\s+',
53			self::T_LOG_OP => '\s+(?:and\|or)\s+',
54			self::T_COMP_OP => '\s(?:(?:eq\|ne\|co\|sw\|ew\|gt\|lt\|ge\|le)\s+\|pr)',
55			self::T_NAME => '(?:(?:[^\"]+\:)+)?[\-\_a-z0-9]+(?:\.[\-\_a-z0-9]+)?',
56			];
57
58			if ($mode === ParserMode::PATH) {
59			$patterns[self::T_SUBATTR] = '\.[\-\_a-z0-9]+$';
60			}
61
62			// Sort patterns by key as constant value determines order.
63			ksort($patterns);
64
65			$this->tokenizer = new Tokenizer\Tokenizer(
66			$patterns,
67			'i'
68			);
69
70			$this->mode = $mode;
71			}
72
73			/**
74			* Parse.
75			*
76			* @param string $input
77			*
78			* @return AST\Node\|AST\Path\|null
79			*/
80			abstract public function parse(string $input);
81
82			/**
83			* Parse inner.
84			*
85			* @param Tokenizer\Stream $stream
86			* @param bool $inValuePath
87			*
88			* @throws Tokenizer\Exception
89			*
90			* @return AST\Node\|null
91			*/
92			protected function parseInner(Tokenizer\Stream $stream, bool $inValuePath = false): ?AST\Node
93			{
94			$node = null;
95
96			if ($stream->isNext(self::T_PAREN_OPEN)) {
97			// Parentheses
98			$node = $this->parseParentheses($stream);
99
100			if ($node === null) {
101			return null;
102			}
103			} elseif ($stream->isNext(self::T_NEGATION)) {
104			// Negation
105			$node = $this->parseNegation($stream, $inValuePath);
106
107			if ($node === null) {
108			return null;
109			}
110			} elseif ($stream->isNext(self::T_NAME)) {
111			// Comparison or value path
112			$node = $this->parseAttributePath($stream, $inValuePath);
113
114			if ($node instanceof AST\AttributePath) {
115			$node = $this->parseComparison($stream, $node);
116			}
117			}
118
119			// Make sure we only return nodes, not paths.
120			if ($node !== null && $node instanceof AST\Node) {
121			// Logical connective
122			if ($stream->isNext(self::T_LOG_OP)) {
123			return $this->parseConnective($stream, $node, $inValuePath);
124			}
125
126			return $node;
127			}
128
129			throw new UnexpectedValueException($stream);
130			}
131
132			/**
133			* Parse filter in parentheses.
134			*
135			* @param Tokenizer\Stream $stream
136			*
137			* @throws Tokenizer\Exception
138			*
139			* @return AST\Node\|AST\Path\|null
140			*/
141			protected function parseParentheses(Tokenizer\Stream $stream)
142			{
143			$stream->consumeToken(self::T_PAREN_OPEN);
144			$filter = $this->joinUntilMatchingParenthesis($stream);
145			$stream->consumeToken(self::T_PAREN_CLOSE);
146
147			if (empty($filter)) {
148			return null;
149			}
150
151			return $this->parse($filter);
152			}
153
154			/**
155			* Parse negation.
156			*
157			* @param Tokenizer\Stream $stream
158			* @param bool $inValuePath
159			*
160			* @throws Tokenizer\Exception
161			*
162			* @return AST\Node\|null
163			*/
164			protected function parseNegation(Tokenizer\Stream $stream, bool $inValuePath = false): ?AST\Node
165			{
166			$stream->consumeToken(self::T_NEGATION);
167			$stream->consumeToken(self::T_PAREN_OPEN);
168			$filter = $this->joinUntilMatchingParenthesis($stream);
169			$stream->consumeToken(self::T_PAREN_CLOSE);
170
171			if (empty($filter)) {
172			return null;
173			}
174
175			$node = $this->parseInner($this->tokenizer->tokenize($filter), $inValuePath);
176
177			if ($node === null) {
178			return null;
179			}
180
181			return new AST\Negation($node);
182			}
183
184			/**
185			* Parse attribute path.
186			*
187			* @param Tokenizer\Stream $stream
188			* @param bool $inValuePath
189			*
190			* @throws Tokenizer\Exception
191			*
192			* @return AST\Path
193			*/
194			protected function parseAttributePath(Tokenizer\Stream $stream, bool $inValuePath = false): AST\Path
195			{
196			$name = $stream->consumeToken(self::T_NAME)->value;
197
198			// Attribute scheme
199			$scheme = null;
200
201			if (strpos($name, ':') !== false) {
202			/** @var int $lastColonPos */
203			$lastColonPos = strrpos($name, ':');
204			$scheme = substr($name, 0, $lastColonPos);
205			$name = substr($name, $lastColonPos + 1);
206			}
207
208			// Attribute path
209			$attributePath = new AST\AttributePath($scheme, explode('.', $name));
210
211			// Value path (only if not in value path already
212			if ($stream->isNext(self::T_BRACKET_OPEN)) {
213			if ($inValuePath === true \|\| count($attributePath) !== 1) {
214			throw new UnexpectedValueException($stream);
215			}
216
217			return $this->parseValuePath($stream, $attributePath);
218			}
219
220			return $attributePath;
221			}
222
223			/**
224			* Parse value path.
225			*
226			* @param Tokenizer\Stream $stream
227			* @param AST\AttributePath $attributePath
228			*
229			* @throws Tokenizer\Exception
230			*
231			* @return AST\ValuePath
232			*/
233			protected function parseValuePath(Tokenizer\Stream $stream, AST\AttributePath $attributePath): AST\ValuePath
234			{
235			// Save position to report exception coordinates later
236			$startPos = $stream->position + 1;
237
238			// Parse
239			$stream->consumeToken(self::T_BRACKET_OPEN);
240			$node = $this->parseInner($stream, true);
241			$stream->consumeToken(self::T_BRACKET_CLOSE);
242
243			// Correct attribute path for node.
244			try {
245			$node = $this->updateValuePathAttributePath($attributePath, $node);
246			} catch (Tokenizer\Exception $ex) {
247			// Reset stream position to value path start to correct exception coordinates.
248			$stream->position = $startPos;
249
250			throw new UnexpectedValueException($stream);
251			}
252
253			return new AST\ValuePath($attributePath, $node);
254			}
255
256			/**
257			* Parse comparison.
258			*
259			* @param Tokenizer\Stream $stream
260			* @param AST\AttributePath $attributePath
261			*
262			* @throws Tokenizer\Exception
263			*
264			* @return AST\Connective\|AST\Comparison
265			*/
266			protected function parseComparison(
267			Tokenizer\Stream $stream,
268			AST\AttributePath $attributePath
269			) {
270			$operator = trim($stream->consumeValue(self::T_COMP_OP));
271			$value = null;
272
273			if (strcasecmp($operator, 'pr') <> 0) {
274			$value = $stream->consumeToken(self::T_STRING, self::T_NUMBER, self::T_BOOL, self::T_NULL);
275
276			switch ($value->type) {
277			case self::T_STRING:
278			$value = trim($value->value, '"');
279			break;
280			case self::T_NUMBER:
281			if (strpos($value->value, '.') !== false) {
282			$value = floatval($value->value);
283			break;
284			}
285
286			$value = intval($value->value);
287			break;
288			case self::T_BOOL:
289			$value = strcasecmp($value->value, 'true') === 0;
290			break;
291			default:
292			$value = null;
293			break;
294			}
295			}
296
297			return new AST\Comparison($attributePath, $operator, $value);
298			}
299
300			/**
301			* Parse logical connective (and/or).
302			*
303			* @param Tokenizer\Stream $stream
304			* @param AST\Node $leftNode
305			* @param bool $inValuePath
306			*
307			* @throws Tokenizer\Exception
308			*
309			* @return AST\Connective
310			*/
311			protected function parseConnective(
312			Tokenizer\Stream $stream,
313			AST\Node $leftNode,
314			bool $inValuePath = false
315			): AST\Connective {
316			// Logical operator
317			$logOp = trim($stream->consumeToken(self::T_LOG_OP)->value);
318
319			$isConjunction = strcasecmp($logOp, 'and') === 0;
320
321			// Save position to report exception coordinates later
322			$startPos = $stream->position + 1;
323
324			// Parse right hand node
325			$rightNode = $this->parseInner($stream, $inValuePath);
326
327			if ($rightNode === null) {
328			// Reset stream position to value path start to correct exception coordinates.
329			$stream->position = $startPos;
330
331			throw new UnexpectedValueException($stream);
332			}
333
334			// Connective nodes
335			$nodes = [$leftNode, $rightNode];
336
337			// Merge consecutive connectives of the same type into one connective.
338			if (
339			($rightNode instanceof AST\Conjunction && $isConjunction === true)
340			\|\| ($rightNode instanceof AST\Disjunction && $isConjunction === false)
341			) {
342			$rightNodes = $rightNode->getNodes();
343
344			$nodes = array_merge([$leftNode], $rightNodes);
345			}
346
347			return $isConjunction === true
348			? new AST\Conjunction($nodes)
349			: new AST\Disjunction($nodes);
350			}
351
352			/**
353			* Prepend attribute path to node.
354			*
355			* @param AST\AttributePath $attributePath
356			* @param AST\Node\|null $node
357			*
358			* @throws Tokenizer\Exception When node is null or not a valid node.
359			*
360			* @return AST\Node
361			*/
362			protected function updateValuePathAttributePath(AST\AttributePath $attributePath, ?AST\Node $node): AST\Node
363			{
364			if ($node instanceof AST\Comparison) {
365			$names = array_merge($attributePath->getNames(), $node->getAttributePath()->getNames());
366
367			$node->setAttributePath(
368			new AST\AttributePath(
369			$attributePath->getSchema(),
370			$names
371			)
372			);
373
374			return $node;
375			}
376
377			if ($node instanceof AST\Negation) {
378			$node->setNode($this->updateValuePathAttributePath($attributePath, $node->getNode()));
379
380			return $node;
381			}
382
383			if ($node instanceof AST\Connective) {
384			foreach ($node->getNodes() as $subNode) {
385			$this->updateValuePathAttributePath($attributePath, $subNode);
386			}
387
388			return $node;
389			}
390
391			throw new Tokenizer\Exception('Invalid value path.');
392			}
393
394			/**
395			* Join values until matching
396			*
397			* @param Tokenizer\Stream $stream
398			*
399			* @throws Tokenizer\Exception
400			* @return string
401			*/
402			protected function joinUntilMatchingParenthesis(Tokenizer\Stream $stream): string
403			{
404			$pos = $stream->position + 1;
405			$numTokens = count($stream->tokens);
406			$level = 1;
407			$result = '';
408
409			if ($pos >= $numTokens) {
410			throw new Tokenizer\Exception('Unexpected end of string');
411			}
412
413			for ($i = $pos; $pos < $numTokens; $i++) {
414			$token = $stream->tokens[$i];
415
416			if ($token->type === self::T_PAREN_OPEN) {
417			$level++;
418			} elseif ($token->type === self::T_PAREN_CLOSE) {
419			$level--;
420
421			if ($level === 0) {
422			$stream->position = $i - 1;
423			break;
424			}
425			}
426
427			$result .= $token->value;
428			}
429
430			return $result;
431			}
432			}
433

Cloudstek / scim-filter-parser

AbstractParser::parseComparison() B last analyzed 2022-03-22 00:38 UTC

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AbstractParser::parseComparison() B
last analyzed 2022-03-22 00:38 UTC