MarkdownParser::parseLine() - Code Metrics - thephpleague/commonmark - Measure and Improve Code Quality continuously with Scrutinizer

MarkdownParser::parseLine() D
last analyzed 2025-06-12 21:21 UTC

↳ Parent: MarkdownParser

Complexity

Conditions	18
Paths	57

Size

Total Lines	75
Code Lines	41

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	41
CRAP Score	18

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	18
eloc	41
c	1
b	0
f	0
nc	57
nop	1
dl	0
loc	75
ccs	41
cts	41
cp	1
crap	18
rs	4.8666

How to fix Long Method Complexity

<?php

declare(strict_types=1);

/*
 * This file is part of the league/commonmark package.
 *
 * (c) Colin O'Dell <[email protected]>
 *
 * Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
 *  - (c) John MacFarlane
 *
 * Additional code based on commonmark-java (https://github.com/commonmark/commonmark-java)
 *  - (c) Atlassian Pty Ltd
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace League\CommonMark\Parser;

use League\CommonMark\Environment\EnvironmentInterface;
use League\CommonMark\Event\DocumentParsedEvent;
use League\CommonMark\Event\DocumentPreParsedEvent;
use League\CommonMark\Exception\CommonMarkException;
use League\CommonMark\Input\MarkdownInput;
use League\CommonMark\Node\Block\Document;
use League\CommonMark\Node\Block\Paragraph;
use League\CommonMark\Parser\Block\BlockContinueParserInterface;
use League\CommonMark\Parser\Block\BlockContinueParserWithInlinesInterface;
use League\CommonMark\Parser\Block\BlockStart;
use League\CommonMark\Parser\Block\BlockStartParserInterface;
use League\CommonMark\Parser\Block\DocumentBlockParser;
use League\CommonMark\Parser\Block\ParagraphParser;
use League\CommonMark\Reference\MemoryLimitedReferenceMap;
filter:
    dependency_paths: ["lib/*"]
use League\CommonMark\Reference\ReferenceInterface;
use League\CommonMark\Reference\ReferenceMap;

final class MarkdownParser implements MarkdownParserInterface
{
    /** @psalm-readonly */
    private EnvironmentInterface $environment;

    /** @psalm-readonly-allow-private-mutation */
    private int $maxNestingLevel;

    /** @psalm-readonly-allow-private-mutation */
    private ReferenceMap $referenceMap;

    /** @psalm-readonly-allow-private-mutation */
    private int $lineNumber = 0;

    /** @psalm-readonly-allow-private-mutation */
    private Cursor $cursor;

    /**
     * @var array<int, BlockContinueParserInterface>
     *
     * @psalm-readonly-allow-private-mutation
     */
    private array $activeBlockParsers = [];

    /**
     * @var array<int, BlockContinueParserWithInlinesInterface>
     *
     * @psalm-readonly-allow-private-mutation
     */
    private array $closedBlockParsers = [];

    public function __construct(EnvironmentInterface $environment)
    {
        $this->environment = $environment;
    }

    private function initialize(): void
    {
        $this->referenceMap       = new ReferenceMap();
        $this->lineNumber         = 0;
        $this->activeBlockParsers = [];
        $this->closedBlockParsers = [];

        $this->maxNestingLevel = $this->environment->getConfiguration()->get('max_nesting_level');
    }

    /**
     * @throws CommonMarkException
     */
    public function parse(string $input): Document
    {
        $this->initialize();

        $documentParser = new DocumentBlockParser($this->referenceMap);
        $this->activateBlockParser($documentParser);

        $preParsedEvent = new DocumentPreParsedEvent($documentParser->getBlock(), new MarkdownInput($input));
        $this->environment->dispatch($preParsedEvent);
        $markdownInput = $preParsedEvent->getMarkdown();

        foreach ($markdownInput->getLines() as $lineNumber => $line) {
            $this->lineNumber = $lineNumber;
            $this->parseLine($line);
        }

        // finalizeAndProcess
        $this->closeBlockParsers(\count($this->activeBlockParsers), $this->lineNumber);
        $this->processInlines(\strlen($input));

        $this->environment->dispatch(new DocumentParsedEvent($documentParser->getBlock()));

        return $documentParser->getBlock();
    }

    /**
     * Analyze a line of text and update the document appropriately. We parse markdown text by calling this on each
     * line of input, then finalizing the document.
     */
    private function parseLine(string $line): void
    {
        // replace NUL characters for security
        $line = \str_replace("\0", "\u{FFFD}", $line);

        $this->cursor = new Cursor($line);

        $matches = $this->parseBlockContinuation();
        if ($matches === null) {
            return;
        }

        $unmatchedBlocks = \count($this->activeBlockParsers) - $matches;
        $blockParser     = $this->activeBlockParsers[$matches - 1];
        $startedNewBlock = false;

        // Unless last matched container is a code block, try new container starts,
        // adding children to the last matched container:
        $tryBlockStarts = $blockParser->getBlock() instanceof Paragraph || $blockParser->isContainer();
        while ($tryBlockStarts) {
            // this is a little performance optimization
            if ($this->cursor->isBlank()) {
                $this->cursor->advanceToEnd();
                break;
            }

            if ($blockParser->getBlock()->getDepth() >= $this->maxNestingLevel) {
                break;
            }

            $blockStart = $this->findBlockStart($blockParser);
            if ($blockStart === null || $blockStart->isAborting()) {
                $this->cursor->advanceToNextNonSpaceOrTab();
                break;
            }

            if (($state = $blockStart->getCursorState()) !== null) {
                $this->cursor->restoreState($state);
            }

            $startedNewBlock = true;

            // We're starting a new block. If we have any previous blocks that need to be closed, we need to do it now.
            if ($unmatchedBlocks > 0) {
                $this->closeBlockParsers($unmatchedBlocks, $this->lineNumber - 1);
                $unmatchedBlocks = 0;
            }

            $oldBlockLineStart = null;
            if ($blockStart->isReplaceActiveBlockParser()) {
                $oldBlockLineStart = $this->prepareActiveBlockParserForReplacement();
            }

            foreach ($blockStart->getBlockParsers() as $newBlockParser) {
                $blockParser    = $this->addChild($newBlockParser, $oldBlockLineStart);
                $tryBlockStarts = $newBlockParser->isContainer();
            }
        }

        // What remains at the offset is a text line. Add the text to the appropriate block.

        // First check for a lazy paragraph continuation:
        if (! $startedNewBlock && ! $this->cursor->isBlank() && $this->getActiveBlockParser()->canHaveLazyContinuationLines()) {
            $this->getActiveBlockParser()->addLine($this->cursor->getRemainder());
        } else {
            // finalize any blocks not matched
            if ($unmatchedBlocks > 0) {
                $this->closeBlockParsers($unmatchedBlocks, $this->lineNumber - 1);
            }

            if (! $blockParser->isContainer()) {
                $this->getActiveBlockParser()->addLine($this->cursor->getRemainder());
            } elseif (! $this->cursor->isBlank()) {
                $this->addChild(new ParagraphParser());
                $this->getActiveBlockParser()->addLine($this->cursor->getRemainder());
            }
        }
    }

    private function parseBlockContinuation(): ?int
    {
        // For each containing block, try to parse the associated line start.
        // The document will always match, so we can skip the first block parser and start at 1 matches
        $matches = 1;
        for ($i = 1; $i < \count($this->activeBlockParsers); $i++) {
            $blockParser   = $this->activeBlockParsers[$i];
            $blockContinue = $blockParser->tryContinue(clone $this->cursor, $this->getActiveBlockParser());
            if ($blockContinue === null) {
                break;
            }

            if ($blockContinue->isFinalize()) {
                $this->closeBlockParsers(\count($this->activeBlockParsers) - $i, $this->lineNumber);

                return null;
            }

            if (($state = $blockContinue->getCursorState()) !== null) {
                $this->cursor->restoreState($state);
            }

            $matches++;
        }

        return $matches;
    }

    private function findBlockStart(BlockContinueParserInterface $lastMatchedBlockParser): ?BlockStart
    {
        $matchedBlockParser = new MarkdownParserState($this->getActiveBlockParser(), $lastMatchedBlockParser);

        foreach ($this->environment->getBlockStartParsers() as $blockStartParser) {
            \assert($blockStartParser instanceof BlockStartParserInterface);
            if (($result = $blockStartParser->tryStart(clone $this->cursor, $matchedBlockParser)) !== null) {
                return $result;
            }
        }

        return null;
    }

    private function closeBlockParsers(int $count, int $endLineNumber): void
    {
        for ($i = 0; $i < $count; $i++) {
            $blockParser = $this->deactivateBlockParser();
            $this->finalize($blockParser, $endLineNumber);

            // phpcs:disable SlevomatCodingStandard.ControlStructures.EarlyExit.EarlyExitNotUsed
            if ($blockParser instanceof BlockContinueParserWithInlinesInterface) {
                // Remember for inline parsing
                $this->closedBlockParsers[] = $blockParser;
            }
        }
    }

    /**
     * Finalize a block. Close it and do any necessary postprocessing, e.g. creating string_content from strings,
     * setting the 'tight' or 'loose' status of a list, and parsing the beginnings of paragraphs for reference
     * definitions.
     */
    private function finalize(BlockContinueParserInterface $blockParser, int $endLineNumber): void
    {
        if ($blockParser instanceof ParagraphParser) {
            $this->updateReferenceMap($blockParser->getReferences());
        }

        $blockParser->getBlock()->setEndLine($endLineNumber);
        $blockParser->closeBlock();
    }

    /**
     * Walk through a block & children recursively, parsing string content into inline content where appropriate.
     */
    private function processInlines(int $inputSize): void
    {
        $p = new InlineParserEngine($this->environment, new MemoryLimitedReferenceMap($this->referenceMap, $inputSize));

        foreach ($this->closedBlockParsers as $blockParser) {
            $blockParser->parseInlines($p);
        }
    }

    /**
     * Add block of type tag as a child of the tip. If the tip can't accept children, close and finalize it and try
     * its parent, and so on til we find a block that can accept children.
     */
    private function addChild(BlockContinueParserInterface $blockParser, ?int $startLineNumber = null): BlockContinueParserInterface
    {
        $blockParser->getBlock()->setStartLine($startLineNumber ?? $this->lineNumber);

        while (! $this->getActiveBlockParser()->canContain($blockParser->getBlock())) {
            $this->closeBlockParsers(1, ($startLineNumber ?? $this->lineNumber) - 1);
        }

        $this->getActiveBlockParser()->getBlock()->appendChild($blockParser->getBlock());
        $this->activateBlockParser($blockParser);

        return $blockParser;
    }

    private function activateBlockParser(BlockContinueParserInterface $blockParser): void
    {
        $this->activeBlockParsers[] = $blockParser;
    }

    /**
     * @throws ParserLogicException
     */
    private function deactivateBlockParser(): BlockContinueParserInterface
    {
        $popped = \array_pop($this->activeBlockParsers);
        if ($popped === null) {
            throw new ParserLogicException('The last block parser should not be deactivated');
        }

        return $popped;
    }

    /**
     * @return int|null The line number where the old block started
     */
    private function prepareActiveBlockParserForReplacement(): ?int
    {
        // Note that we don't want to parse inlines or finalize this block, as it's getting replaced.
        $old = $this->deactivateBlockParser();

        if ($old instanceof ParagraphParser) {
            $this->updateReferenceMap($old->getReferences());
        }

        $old->getBlock()->detach();

        return $old->getBlock()->getStartLine();
    }

    /**
     * @param ReferenceInterface[] $references
     */
    private function updateReferenceMap(iterable $references): void
    {
        foreach ($references as $reference) {
            if (! $this->referenceMap->contains($reference->getLabel())) {
                $this->referenceMap->add($reference);
            }
        }
    }

    /**
     * @throws ParserLogicException
     */
    public function getActiveBlockParser(): BlockContinueParserInterface
    {
        $active = \end($this->activeBlockParsers);
        if ($active === false) {
            throw new ParserLogicException('No active block parsers are available');
        }

        return $active;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		/*
6		* This file is part of the league/commonmark package.
7		*
8		* (c) Colin O'Dell <[email protected]>
9		*
10		* Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
11		* - (c) John MacFarlane
12		*
13		* Additional code based on commonmark-java (https://github.com/commonmark/commonmark-java)
14		* - (c) Atlassian Pty Ltd
15		*
16		* For the full copyright and license information, please view the LICENSE
17		* file that was distributed with this source code.
18		*/
19
20		namespace League\CommonMark\Parser;
21
22		use League\CommonMark\Environment\EnvironmentInterface;
23		use League\CommonMark\Event\DocumentParsedEvent;
24		use League\CommonMark\Event\DocumentPreParsedEvent;
25		use League\CommonMark\Exception\CommonMarkException;
26		use League\CommonMark\Input\MarkdownInput;
27		use League\CommonMark\Node\Block\Document;
28		use League\CommonMark\Node\Block\Paragraph;
29		use League\CommonMark\Parser\Block\BlockContinueParserInterface;
30		use League\CommonMark\Parser\Block\BlockContinueParserWithInlinesInterface;
31		use League\CommonMark\Parser\Block\BlockStart;
32		use League\CommonMark\Parser\Block\BlockStartParserInterface;
33		use League\CommonMark\Parser\Block\DocumentBlockParser;
34		use League\CommonMark\Parser\Block\ParagraphParser;
35		use League\CommonMark\Reference\MemoryLimitedReferenceMap;
		0 ignored issues – show Bug introduced 2024-12-07 15:48 UTC by Report Bug Copy Issue Report The type `League\CommonMark\Refere...moryLimitedReferenceMap` 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...
36		use League\CommonMark\Reference\ReferenceInterface;
37		use League\CommonMark\Reference\ReferenceMap;
38
39		final class MarkdownParser implements MarkdownParserInterface
40		{
41		/** @psalm-readonly */
42		private EnvironmentInterface $environment;
43
44		/** @psalm-readonly-allow-private-mutation */
45		private int $maxNestingLevel;
46
47		/** @psalm-readonly-allow-private-mutation */
48		private ReferenceMap $referenceMap;
49
50		/** @psalm-readonly-allow-private-mutation */
51		private int $lineNumber = 0;
52
53		/** @psalm-readonly-allow-private-mutation */
54		private Cursor $cursor;
55
56		/**
57		* @var array<int, BlockContinueParserInterface>
58		*
59		* @psalm-readonly-allow-private-mutation
60		*/
61		private array $activeBlockParsers = [];
62
63		/**
64		* @var array<int, BlockContinueParserWithInlinesInterface>
65		*
66		* @psalm-readonly-allow-private-mutation
67		*/
68		private array $closedBlockParsers = [];
69
70	2334	public function __construct(EnvironmentInterface $environment)
71		{
72	2334	$this->environment = $environment;
73		}
74
75	2320	private function initialize(): void
76		{
77	2320	$this->referenceMap = new ReferenceMap();
78	2320	$this->lineNumber = 0;
79	2320	$this->activeBlockParsers = [];
80	2320	$this->closedBlockParsers = [];
81
82	2320	$this->maxNestingLevel = $this->environment->getConfiguration()->get('max_nesting_level');
83		}
84
85		/**
86		* @throws CommonMarkException
87		*/
88	2320	public function parse(string $input): Document
89		{
90	2320	$this->initialize();
91
92	2320	$documentParser = new DocumentBlockParser($this->referenceMap);
93	2320	$this->activateBlockParser($documentParser);
94
95	2320	$preParsedEvent = new DocumentPreParsedEvent($documentParser->getBlock(), new MarkdownInput($input));
96	2314	$this->environment->dispatch($preParsedEvent);
97	2304	$markdownInput = $preParsedEvent->getMarkdown();
98
99	2304	foreach ($markdownInput->getLines() as $lineNumber => $line) {
100	2304	$this->lineNumber = $lineNumber;
101	2304	$this->parseLine($line);
102		}
103
104		// finalizeAndProcess
105	2304	$this->closeBlockParsers(\count($this->activeBlockParsers), $this->lineNumber);
106	2304	$this->processInlines(\strlen($input));
107
108	2304	$this->environment->dispatch(new DocumentParsedEvent($documentParser->getBlock()));
109
110	2302	return $documentParser->getBlock();
111		}
112
113		/**
114		* Analyze a line of text and update the document appropriately. We parse markdown text by calling this on each
115		* line of input, then finalizing the document.
116		*/
117	2304	private function parseLine(string $line): void
118		{
119		// replace NUL characters for security
120	2304	$line = \str_replace("\0", "\u{FFFD}", $line);
121
122	2304	$this->cursor = new Cursor($line);
123
124	2304	$matches = $this->parseBlockContinuation();
125	2304	if ($matches === null) {
126	74	return;
127		}
128
129	2304	$unmatchedBlocks = \count($this->activeBlockParsers) - $matches;
130	2304	$blockParser = $this->activeBlockParsers[$matches - 1];
131	2304	$startedNewBlock = false;
132
133		// Unless last matched container is a code block, try new container starts,
134		// adding children to the last matched container:
135	2304	$tryBlockStarts = $blockParser->getBlock() instanceof Paragraph \|\| $blockParser->isContainer();
136	2304	while ($tryBlockStarts) {
137		// this is a little performance optimization
138	2304	if ($this->cursor->isBlank()) {
139	656	$this->cursor->advanceToEnd();
140	656	break;
141		}
142
143	2304	if ($blockParser->getBlock()->getDepth() >= $this->maxNestingLevel) {
144	4	break;
145		}
146
147	2304	$blockStart = $this->findBlockStart($blockParser);
148	2304	if ($blockStart === null \|\| $blockStart->isAborting()) {
149	1998	$this->cursor->advanceToNextNonSpaceOrTab();
150	1998	break;
151		}
152
153	900	if (($state = $blockStart->getCursorState()) !== null) {
154	900	$this->cursor->restoreState($state);
155		}
156
157	900	$startedNewBlock = true;
158
159		// We're starting a new block. If we have any previous blocks that need to be closed, we need to do it now.
160	900	if ($unmatchedBlocks > 0) {
161	218	$this->closeBlockParsers($unmatchedBlocks, $this->lineNumber - 1);
162	218	$unmatchedBlocks = 0;
163		}
164
165	900	$oldBlockLineStart = null;
166	900	if ($blockStart->isReplaceActiveBlockParser()) {
167	138	$oldBlockLineStart = $this->prepareActiveBlockParserForReplacement();
168		}
169
170	900	foreach ($blockStart->getBlockParsers() as $newBlockParser) {
171	900	$blockParser = $this->addChild($newBlockParser, $oldBlockLineStart);
172	900	$tryBlockStarts = $newBlockParser->isContainer();
173		}
174		}
175
176		// What remains at the offset is a text line. Add the text to the appropriate block.
177
178		// First check for a lazy paragraph continuation:
179	2304	if (! $startedNewBlock && ! $this->cursor->isBlank() && $this->getActiveBlockParser()->canHaveLazyContinuationLines()) {
180	358	$this->getActiveBlockParser()->addLine($this->cursor->getRemainder());
181		} else {
182		// finalize any blocks not matched
183	2304	if ($unmatchedBlocks > 0) {
184	676	$this->closeBlockParsers($unmatchedBlocks, $this->lineNumber - 1);
185		}
186
187	2304	if (! $blockParser->isContainer()) {
188	660	$this->getActiveBlockParser()->addLine($this->cursor->getRemainder());
189	2048	} elseif (! $this->cursor->isBlank()) {
190	2002	$this->addChild(new ParagraphParser());
191	2002	$this->getActiveBlockParser()->addLine($this->cursor->getRemainder());
192		}
193		}
194		}
195
196	2304	private function parseBlockContinuation(): ?int
197		{
198		// For each containing block, try to parse the associated line start.
199		// The document will always match, so we can skip the first block parser and start at 1 matches
200	2304	$matches = 1;
201	2304	for ($i = 1; $i < \count($this->activeBlockParsers); $i++) {
202	1152	$blockParser = $this->activeBlockParsers[$i];
203	1152	$blockContinue = $blockParser->tryContinue(clone $this->cursor, $this->getActiveBlockParser());
204	1152	if ($blockContinue === null) {
205	798	break;
206		}
207
208	746	if ($blockContinue->isFinalize()) {
209	74	$this->closeBlockParsers(\count($this->activeBlockParsers) - $i, $this->lineNumber);
210
211	74	return null;
212		}
213
214	742	if (($state = $blockContinue->getCursorState()) !== null) {
215	742	$this->cursor->restoreState($state);
216		}
217
218	742	$matches++;
219		}
220
221	2304	return $matches;
222		}
223
224	2304	private function findBlockStart(BlockContinueParserInterface $lastMatchedBlockParser): ?BlockStart
225		{
226	2304	$matchedBlockParser = new MarkdownParserState($this->getActiveBlockParser(), $lastMatchedBlockParser);
227
228	2304	foreach ($this->environment->getBlockStartParsers() as $blockStartParser) {
229		\assert($blockStartParser instanceof BlockStartParserInterface);
230	2304	if (($result = $blockStartParser->tryStart(clone $this->cursor, $matchedBlockParser)) !== null) {
231	1500	return $result;
232		}
233		}
234
235	1058	return null;
236		}
237
238	2304	private function closeBlockParsers(int $count, int $endLineNumber): void
239		{
240	2304	for ($i = 0; $i < $count; $i++) {
241	2304	$blockParser = $this->deactivateBlockParser();
242	2304	$this->finalize($blockParser, $endLineNumber);
243
244		// phpcs:disable SlevomatCodingStandard.ControlStructures.EarlyExit.EarlyExitNotUsed
245	2304	if ($blockParser instanceof BlockContinueParserWithInlinesInterface) {
246		// Remember for inline parsing
247	2090	$this->closedBlockParsers[] = $blockParser;
248		}
249		}
250		}
251
252		/**
253		* Finalize a block. Close it and do any necessary postprocessing, e.g. creating string_content from strings,
254		* setting the 'tight' or 'loose' status of a list, and parsing the beginnings of paragraphs for reference
255		* definitions.
256		*/
257	2304	private function finalize(BlockContinueParserInterface $blockParser, int $endLineNumber): void
258		{
259	2304	if ($blockParser instanceof ParagraphParser) {
260	1914	$this->updateReferenceMap($blockParser->getReferences());
261		}
262
263	2304	$blockParser->getBlock()->setEndLine($endLineNumber);
264	2304	$blockParser->closeBlock();
265		}
266
267		/**
268		* Walk through a block & children recursively, parsing string content into inline content where appropriate.
269		*/
270	2304	private function processInlines(int $inputSize): void
271		{
272	2304	$p = new InlineParserEngine($this->environment, new MemoryLimitedReferenceMap($this->referenceMap, $inputSize));
273
274	2304	foreach ($this->closedBlockParsers as $blockParser) {
275	2090	$blockParser->parseInlines($p);
276		}
277		}
278
279		/**
280		* Add block of type tag as a child of the tip. If the tip can't accept children, close and finalize it and try
281		* its parent, and so on til we find a block that can accept children.
282		*/
283	2304	private function addChild(BlockContinueParserInterface $blockParser, ?int $startLineNumber = null): BlockContinueParserInterface
284		{
285	2304	$blockParser->getBlock()->setStartLine($startLineNumber ?? $this->lineNumber);
286
287	2304	while (! $this->getActiveBlockParser()->canContain($blockParser->getBlock())) {
288	130	$this->closeBlockParsers(1, ($startLineNumber ?? $this->lineNumber) - 1);
289		}
290
291	2304	$this->getActiveBlockParser()->getBlock()->appendChild($blockParser->getBlock());
292	2304	$this->activateBlockParser($blockParser);
293
294	2304	return $blockParser;
295		}
296
297	2320	private function activateBlockParser(BlockContinueParserInterface $blockParser): void
298		{
299	2320	$this->activeBlockParsers[] = $blockParser;
300		}
301
302		/**
303		* @throws ParserLogicException
304		*/
305	2304	private function deactivateBlockParser(): BlockContinueParserInterface
306		{
307	2304	$popped = \array_pop($this->activeBlockParsers);
308	2304	if ($popped === null) {
309		throw new ParserLogicException('The last block parser should not be deactivated');
310		}
311
312	2304	return $popped;
313		}
314
315		/**
316		* @return int\|null The line number where the old block started
317		*/
318	138	private function prepareActiveBlockParserForReplacement(): ?int
319		{
320		// Note that we don't want to parse inlines or finalize this block, as it's getting replaced.
321	138	$old = $this->deactivateBlockParser();
322
323	138	if ($old instanceof ParagraphParser) {
324	138	$this->updateReferenceMap($old->getReferences());
325		}
326
327	138	$old->getBlock()->detach();
328
329	138	return $old->getBlock()->getStartLine();
330		}
331
332		/**
333		* @param ReferenceInterface[] $references
334		*/
335	2002	private function updateReferenceMap(iterable $references): void
336		{
337	2002	foreach ($references as $reference) {
338	168	if (! $this->referenceMap->contains($reference->getLabel())) {
339	168	$this->referenceMap->add($reference);
340		}
341		}
342		}
343
344		/**
345		* @throws ParserLogicException
346		*/
347	2304	public function getActiveBlockParser(): BlockContinueParserInterface
348		{
349	2304	$active = \end($this->activeBlockParsers);
350	2304	if ($active === false) {
351		throw new ParserLogicException('No active block parsers are available');
352		}
353
354	2304	return $active;
355		}
356		}
357

thephpleague / commonmark

MarkdownParser::parseLine() D last analyzed 2025-06-12 21:21 UTC

Complexity

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Duplication

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Long Method

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MarkdownParser::parseLine() D
last analyzed 2025-06-12 21:21 UTC