Viewing file:  MarkdownInput.php (2.51 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
declare(strict_types=1);
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <colinodell@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace League\CommonMark\Input;
use League\CommonMark\Exception\UnexpectedEncodingException;
class MarkdownInput implements MarkdownInputInterface
{
/**
* @var array<int, string>|null
*
* @psalm-readonly-allow-private-mutation
*/
private ?array $lines = null;
/** @psalm-readonly-allow-private-mutation */
private string $content;
/** @psalm-readonly-allow-private-mutation */
private ?int $lineCount = null;
/** @psalm-readonly */
private int $lineOffset;
public function __construct(string $content, int $lineOffset = 0)
{
if (! \mb_check_encoding($content, 'UTF-8')) {
throw new UnexpectedEncodingException('Unexpected encoding - UTF-8 or ASCII was expected');
}
// Strip any leading UTF-8 BOM
if (\substr($content, 0, 3) === "\xEF\xBB\xBF") {
$content = \substr($content, 3);
}
$this->content = $content;
$this->lineOffset = $lineOffset;
}
public function getContent(): string
{
return $this->content;
}
/**
* {@inheritDoc}
*/
public function getLines(): iterable
{
$this->splitLinesIfNeeded();
\assert($this->lines !== null);
/** @psalm-suppress PossiblyNullIterator */
foreach ($this->lines as $i => $line) {
yield $this->lineOffset + $i + 1 => $line;
}
}
public function getLineCount(): int
{
$this->splitLinesIfNeeded();
\assert($this->lineCount !== null);
return $this->lineCount;
}
private function splitLinesIfNeeded(): void
{
if ($this->lines !== null) {
return;
}
$lines = \preg_split('/\r\n|\n|\r/', $this->content);
if ($lines === false) {
throw new UnexpectedEncodingException('Failed to split Markdown content by line');
}
$this->lines = $lines;
// Remove any newline which appears at the very end of the string.
// We've already split the document by newlines, so we can simply drop
// any empty element which appears on the end.
if (\end($this->lines) === '') {
\array_pop($this->lines);
}
$this->lineCount = \count($this->lines);
}
}
|