Subversion-Projekte lars-tiefland.laravel_shop

<?php

declare(strict_types=1);

/*

 * This file is part of the league/commonmark package.

 *

 * (c) Colin O'Dell <colinodell@gmail.com>

 *

 * Original code based on the CommonMark JS reference parser (http://bitly.com/commonmark-js)

 *  - (c) John MacFarlane

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace League\CommonMark\Extension\SmartPunct;

use League\CommonMark\Node\Inline\Text;

use League\CommonMark\Parser\Inline\InlineParserInterface;

use League\CommonMark\Parser\Inline\InlineParserMatch;

use League\CommonMark\Parser\InlineParserContext;

final class DashParser implements InlineParserInterface

{

    private const EN_DASH = '–';

    private const EM_DASH = '—';

    public function getMatchDefinition(): InlineParserMatch

    {

        return InlineParserMatch::regex('(?<!-)(-{2,})');

    }

    public function parse(InlineParserContext $inlineContext): bool

    {

        $count = $inlineContext->getFullMatchLength();

        $inlineContext->getCursor()->advanceBy($count);

        $enCount = 0;

        $emCount = 0;

        if ($count % 3 === 0) { // If divisible by 3, use all em dashes

            $emCount = (int) ($count / 3);

        } elseif ($count % 2 === 0) { // If divisible by 2, use all en dashes

            $enCount = (int) ($count / 2);

        } elseif ($count % 3 === 2) { // If 2 extra dashes, use en dash for last 2; em dashes for rest

            $emCount = (int) (($count - 2) / 3);

            $enCount = 1;

        } else { // Use en dashes for last 4 hyphens; em dashes for rest

            $emCount = (int) (($count - 4) / 3);

            $enCount = 2;

        }

        $inlineContext->getContainer()->appendChild(new Text(

            \str_repeat(self::EM_DASH, $emCount) . \str_repeat(self::EN_DASH, $enCount)

        ));

        return true;

    }

}