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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the league/commonmark package. |
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* |
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* (c) Colin O'Dell <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace League\CommonMark\Input; |
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use League\CommonMark\Exception\UnexpectedEncodingException; |
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final class MarkdownInput implements MarkdownInputInterface |
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{ |
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/** |
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* @var iterable<int, string>|null |
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* |
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* @psalm-readonly-allow-private-mutation |
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*/ |
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private $lines; |
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/** |
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* @var string |
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* |
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* @psalm-readonly-allow-private-mutation |
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*/ |
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private $content; |
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/** |
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* @var int|null |
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* |
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* @psalm-readonly-allow-private-mutation |
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*/ |
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private $lineCount; |
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/** |
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* @var int |
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* |
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* @psalm-readonly |
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*/ |
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private $lineOffset = 0; |
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2838 |
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public function __construct(string $content, int $lineOffset = 0) |
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{ |
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2838 |
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if (! \mb_check_encoding($content, 'UTF-8')) { |
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9 |
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throw new UnexpectedEncodingException('Unexpected encoding - UTF-8 or ASCII was expected'); |
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} |
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$this->content = $content; |
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2829 |
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$this->lineOffset = $lineOffset; |
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2829 |
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} |
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public function getContent(): string |
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{ |
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return $this->content; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getLines(): iterable |
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{ |
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$this->splitLinesIfNeeded(); |
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/** @psalm-suppress PossiblyNullIterator */ |
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2781 |
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foreach ($this->lines as $i => $line) { |
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yield $this->lineOffset + $i + 1 => $line; |
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} |
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2781 |
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} |
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3 |
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public function getLineCount(): int |
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{ |
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$this->splitLinesIfNeeded(); |
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\assert($this->lineCount !== null); |
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return $this->lineCount; |
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} |
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public function getLineOffset(): int |
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{ |
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return $this->lineOffset; |
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} |
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private function splitLinesIfNeeded(): void |
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{ |
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2784 |
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if ($this->lines !== null) { |
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return; |
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} |
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2784 |
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$lines = \preg_split('/\r\n|\n|\r/', $this->content); |
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2784 |
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if ($lines === false) { |
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throw new UnexpectedEncodingException('Failed to split Markdown content by line'); |
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} |
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2784 |
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$this->lines = $lines; |
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// Remove any newline which appears at the very end of the string. |
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// We've already split the document by newlines, so we can simply drop |
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// any empty element which appears on the end. |
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2784 |
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if (\end($this->lines) === '') { |
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2295 |
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\array_pop($this->lines); |
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} |
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$this->lineCount = \count($this->lines); |
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} |
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} |
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thephpleague /
commonmark
