<?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\Extension\TableOfContents;

use League\CommonMark\Environment\EnvironmentBuilderInterface;
use League\CommonMark\Event\DocumentParsedEvent;
use League\CommonMark\Extension\CommonMark\Node\Block\ListBlock;
use League\CommonMark\Extension\CommonMark\Renderer\Block\ListBlockRenderer;
use League\CommonMark\Extension\ConfigurableExtensionInterface;
use League\CommonMark\Extension\TableOfContents\Node\TableOfContents;
use League\CommonMark\Extension\TableOfContents\Node\TableOfContentsPlaceholder;
use League\Config\ConfigurationBuilderInterface;
use Nette\Schema\Expect;

final class TableOfContentsExtension implements ConfigurableExtensionInterface
{
    public function configureSchema(ConfigurationBuilderInterface $builder): void
    {
        $builder->addSchema('table_of_contents', Expect::structure([
            'position' => Expect::anyOf(TableOfContentsBuilder::POSITION_BEFORE_HEADINGS, TableOfContentsBuilder::POSITION_PLACEHOLDER, TableOfContentsBuilder::POSITION_TOP)->default(TableOfContentsBuilder::POSITION_TOP),
            'style' => Expect::anyOf(ListBlock::TYPE_BULLET, ListBlock::TYPE_ORDERED)->default(ListBlock::TYPE_BULLET),
            'normalize' => Expect::anyOf(TableOfContentsGenerator::NORMALIZE_RELATIVE, TableOfContentsGenerator::NORMALIZE_FLAT, TableOfContentsGenerator::NORMALIZE_DISABLED)->default(TableOfContentsGenerator::NORMALIZE_RELATIVE),
            'min_heading_level' => Expect::int()->min(1)->max(6)->default(1),
            'max_heading_level' => Expect::int()->min(1)->max(6)->default(6),
            'html_class' => Expect::string()->default('table-of-contents'),
            'placeholder' => Expect::anyOf(Expect::string(), Expect::null())->default(null),
        ]));
    }

    public function register(EnvironmentBuilderInterface $environment): void
    {
        $environment->addRenderer(TableOfContents::class, new TableOfContentsRenderer(new ListBlockRenderer()));
        $environment->addEventListener(DocumentParsedEvent::class, [new TableOfContentsBuilder(), 'onDocumentParsed'], -150);

        // phpcs:ignore SlevomatCodingStandard.ControlStructures.EarlyExit.EarlyExitNotUsed
        if ($environment->getConfiguration()->get('table_of_contents/position') === TableOfContentsBuilder::POSITION_PLACEHOLDER) {
            $environment->addBlockStartParser(TableOfContentsPlaceholderParser::blockStartParser(), 200);
            // If a placeholder cannot be replaced with a TOC element this renderer will ensure the parser won't error out
            $environment->addRenderer(TableOfContentsPlaceholder::class, new TableOfContentsPlaceholderRenderer());
        }
    }
}

.NET Framework

Project Request

ProjectC

Vehicle Maintenance

Movie Navigator

Customers Exchange

ATM

.NET Core

Mail Daemon

Custom

Buns of code

PHP

Mediabox

Loan Castle

Content Management

Laravel

Phone Check

Frontend

Forex Wall

Business projects

Certification Center

Amerikas Auto

Pet projects

Geolocation Assistant

Web Dynamics

Blackball

Good old times

DOS Clock

BrainOut

Airport Administrator

Atomizer

Mediabox