19680832166

Committed 25 Nov 2025 06:57PM UTC coverage: 88.098% (-0.1%) from 88.195%

Build # 19680832166

Build Type

push

github

Committed by

web-flow

Commit Message

Merge pull request #503 from eliashaeussler/task/markdown

Run Details

2 of 3 new or added lines in 1 file covered. (66.67%)

903 of 1025 relevant lines covered (88.1%)

2.32 hits per line

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97.87

/Classes/ViewHelpers/MarkdownToHtmlViewHelper.php

<?php

declare(strict_types=1);

/*
 * This file is part of the TYPO3 CMS extension "solver".
 *
 * Copyright (C) 2023-2025 Elias Häußler <elias@haeussler.dev>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */

namespace EliasHaeussler\Typo3Solver\ViewHelpers;

use FastVolt\Helper\Markdown;
use TYPO3Fluid\Fluid;

/**
 * MarkdownToHtmlViewHelper
 *
 * @author Elias Häußler <elias@haeussler.dev>
 * @license GPL-2.0-or-later
 */
final class MarkdownToHtmlViewHelper extends Fluid\Core\ViewHelper\AbstractViewHelper
{
    protected $escapeChildren = false;
    protected $escapeOutput = false;

    public function initializeArguments(): void
    {
        $this->registerArgument(
            'markdown',
            'string',
            'The markdown text to convert',
            true,
        );
        $this->registerArgument(
            'replaceLineNumbersInCodeSnippets',
            'boolean',
            'Whether to replace line numbers following the error page markup',
            false,
            false,
        );
    }

    public function getContentArgumentName(): string
    {
        return 'markdown';
    }

    public function render(): string
    {
        $markdown = $this->renderChildren();
        /** @var bool $replaceLineNumbers */
        $replaceLineNumbers = $this->arguments['replaceLineNumbersInCodeSnippets'] ?? false;

        // This should never happen, but makes PHPStan happy :)
        if (!is_string($markdown)) {
            return '';
        }

        // Convert markdown to HTML
        $html = (string)Markdown::new()->setContent($markdown)->toHtml();

        // Replace line numbers
        if ($replaceLineNumbers) {
            $html = self::replaceLineNumbersInCodeSnippets($html);
        }

        return $html;
    }

    private static function replaceLineNumbersInCodeSnippets(string $html): string
    {
        return \preg_replace(
            '/<\/span>\s*<span/',
            '</span><span',
            \preg_replace_callback(
                '/<pre><code>(.*?)<\/code><\/pre>/s',
                static fn(array $matches): string => self::replaceLineNumbersInCodeSnippet($matches[1]),
                $html,
            ) ?? $html,
        ) ?? $html;
    }

    private static function replaceLineNumbersInCodeSnippet(string $codeSnippet): string
    {
        $replacements = 0;
        $codeSnippetWithLineNumbers = \preg_replace(
            '/^(\d+)\s(.*)$/m',
            '<span data-line="$1">$2</span>',
            $codeSnippet,
            -1,
            $replacements,
        );

        if ($replacements === 0) {
            return '<pre><code>' . $codeSnippet . '</code></pre>';
        }

        return '<pre class="has-line-numbers">' . $codeSnippetWithLineNumbers . '</pre>';
    }
}

1	<?php
2
3	declare(strict_types=1);
4
5	/*
6	* This file is part of the TYPO3 CMS extension "solver".
7	*
8	* Copyright (C) 2023-2025 Elias Häußler <elias@haeussler.dev>
9	*
10	* This program is free software: you can redistribute it and/or modify
11	* it under the terms of the GNU General Public License as published by
12	* the Free Software Foundation, either version 2 of the License, or
13	* (at your option) any later version.
14	*
15	* This program is distributed in the hope that it will be useful,
16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18	* GNU General Public License for more details.
19	*
20	* You should have received a copy of the GNU General Public License
21	* along with this program. If not, see <https://www.gnu.org/licenses/>.
22	*/
23
24	namespace EliasHaeussler\Typo3Solver\ViewHelpers;
25
26	use FastVolt\Helper\Markdown;
27	use TYPO3Fluid\Fluid;
28
29	/**
30	* MarkdownToHtmlViewHelper
31	*
32	* @author Elias Häußler <elias@haeussler.dev>
33	* @license GPL-2.0-or-later
34	*/
35	final class MarkdownToHtmlViewHelper extends Fluid\Core\ViewHelper\AbstractViewHelper
36	{
37	protected $escapeChildren = false;
38	protected $escapeOutput = false;
39
40	public function initializeArguments(): void	1✔
41	{
42	$this->registerArgument(	1✔
43	'markdown',	1✔
44	'string',	1✔
45	'The markdown text to convert',	1✔
46	true,	1✔
47	);	1✔
48	$this->registerArgument(	1✔
49	'replaceLineNumbersInCodeSnippets',	1✔
50	'boolean',	1✔
51	'Whether to replace line numbers following the error page markup',	1✔
52	false,	1✔
53	false,	1✔
54	);	1✔
55	}
56
57	public function getContentArgumentName(): string	3✔
58	{
59	return 'markdown';	3✔
60	}
61
62	public function render(): string	3✔
63	{
64	$markdown = $this->renderChildren();	3✔
65	/** @var bool $replaceLineNumbers */
66	$replaceLineNumbers = $this->arguments['replaceLineNumbersInCodeSnippets'] ?? false;	3✔
67
68	// This should never happen, but makes PHPStan happy :)
69	if (!is_string($markdown)) {	3✔
NEW 70	return '';	×
71	}
72
73	// Convert markdown to HTML
74	$html = (string)Markdown::new()->setContent($markdown)->toHtml();	3✔
75
76	// Replace line numbers
77	if ($replaceLineNumbers) {	3✔
78	$html = self::replaceLineNumbersInCodeSnippets($html);	1✔
79	}
80
81	return $html;	3✔
82	}
83
84	private static function replaceLineNumbersInCodeSnippets(string $html): string	1✔
85	{
86	return \preg_replace(	1✔
87	'/<\/span>\s*<span/',	1✔
88	'</span><span',	1✔
89	\preg_replace_callback(	1✔
90	'/<pre><code>(.*?)<\/code><\/pre>/s',	1✔
91	static fn(array $matches): string => self::replaceLineNumbersInCodeSnippet($matches[1]),	1✔
92	$html,	1✔
93	) ?? $html,	1✔
94	) ?? $html;	1✔
95	}
96
97	private static function replaceLineNumbersInCodeSnippet(string $codeSnippet): string	1✔
98	{
99	$replacements = 0;	1✔
100	$codeSnippetWithLineNumbers = \preg_replace(	1✔
101	'/^(\d+)\s(.*)$/m',	1✔
102	'<span data-line="$1">$2</span>',	1✔
103	$codeSnippet,	1✔
104	-1,	1✔
105	$replacements,	1✔
106	);	1✔
107
108	if ($replacements === 0) {	1✔
109	return '<pre><code>' . $codeSnippet . '</code></pre>';	1✔
110	}
111
112	return '<pre class="has-line-numbers">' . $codeSnippetWithLineNumbers . '</pre>';	1✔
113	}
114	}

eliashaeussler / typo3-solver / 19680832166

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