MarkdownService::normalizeIndentationLevel() - Code Metrics - Inspection of "Merge pull request #1565 from hydephp/2.x-dev" - hydephp/develop - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( ad6b2a...b41ca0 )

by Caen

created 2025-05-18 15:00 UTC

MarkdownService::normalizeIndentationLevel() A

↳ Parent: MarkdownService

Complexity

Conditions	3
Paths	3

Size

Total Lines	13
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	3
eloc	6
c	1
b	0
f	0
nc	3
nop	1
dl	0
loc	13
rs	10

<?php

declare(strict_types=1);

namespace Hyde\Framework\Services;

use Hyde\Facades\Config;
use Hyde\Facades\Features;
use Hyde\Markdown\Models\MarkdownDocument;
use Hyde\Markdown\Processing\HeadingRenderer;
use Hyde\Framework\Concerns\Internal\SetsUpMarkdownConverter;
use Hyde\Pages\DocumentationPage;
use Hyde\Markdown\MarkdownConverter;
use Hyde\Markdown\Contracts\MarkdownPreProcessorContract as PreProcessor;
use Hyde\Markdown\Contracts\MarkdownPostProcessorContract as PostProcessor;
use League\CommonMark\Extension\DisallowedRawHtml\DisallowedRawHtmlExtension;
use League\CommonMark\Extension\CommonMark\Node\Block\Heading;

use function str_contains;
use function str_replace;
use function array_merge;
use function array_diff;
use function in_array;
use function implode;
use function explode;
use function substr;
use function strlen;
use function filled;
use function ltrim;
use function trim;

/**
 * Dynamically creates a Markdown converter tailored for the target model and setup,
 * then converts the Markdown to HTML using both pre- and post-processors.
 */
class MarkdownService
{
    use SetsUpMarkdownConverter;

    protected string $markdown;
    protected ?string $pageClass = null;

    protected array $config = [];

    /** @var array<class-string<\League\CommonMark\Extension\ExtensionInterface>> */

    protected array $extensions = [];
    protected MarkdownConverter $converter;

    protected string $html;
    protected array $features = [];

    /** @var array<class-string<\Hyde\Markdown\Contracts\MarkdownPreProcessorContract>> */

    protected array $preprocessors = [];

    /** @var array<class-string<\Hyde\Markdown\Contracts\MarkdownPostProcessorContract>> */

    protected array $postprocessors = [];

    /** @var array<string> Tracks all the headings in the document to ensure identifiers are unique */
    protected array $headingRegistry = [];

    public function __construct(string $markdown, ?string $pageClass = null)
    {
        $this->pageClass = $pageClass;
        $this->markdown = $markdown;
    }

    public function parse(): string
    {
        $this->setupConverter();

        $this->runPreProcessing();

        $this->html = (string) $this->converter->convert($this->markdown);

        $this->runPostProcessing();

        return $this->html;
    }

    protected function setupConverter(): void
    {
        $this->enableDynamicExtensions();

        $this->enableConfigDefinedExtensions();

        $this->mergeMarkdownConfiguration();

        $this->converter = new MarkdownConverter($this->config);

        foreach ($this->extensions as $extension) {
            $this->initializeExtension($extension);
        }

        $this->configureCustomHeadingRenderer();

        $this->registerPreProcessors();
        $this->registerPostProcessors();
    }

    public function addExtension(string $extensionClassName): void
    {
        if (! in_array($extensionClassName, $this->extensions)) {
            $this->extensions[] = $extensionClassName;
        }
    }

    protected function runPreProcessing(): void
    {
        /** @var class-string<PreProcessor> $preprocessor */
        foreach ($this->preprocessors as $preprocessor) {
            $this->markdown = $preprocessor::preprocess($this->markdown);
        }
    }

    protected function runPostProcessing(): void
    {
        if ($this->determineIfTorchlightAttributionShouldBeInjected()) {
            $this->html .= $this->injectTorchlightAttribution();
        }

        /** @var class-string<PostProcessor> $postprocessor */
        foreach ($this->postprocessors as $postprocessor) {
            $this->html = $postprocessor::postprocess($this->html);
        }
    }

    public function getExtensions(): array
    {
        return $this->extensions;
    }

    public function removeFeature(string $feature): static
    {
        if (in_array($feature, $this->features)) {
            $this->features = array_diff($this->features, [$feature]);
        }

        return $this;
    }

    public function addFeature(string $feature): static
    {
        if (! in_array($feature, $this->features)) {
            $this->features[] = $feature;
        }

        return $this;
    }

    public function isDocumentationPage(): bool
    {
        return isset($this->pageClass) && $this->pageClass === DocumentationPage::class;
    }

    public function withTableOfContents(): static
    {
        $this->addFeature('table-of-contents');

        return $this;
    }

    public function canEnableTorchlight(): bool
    {
        return $this->hasFeature('torchlight') ||
            Features::hasTorchlight();
    }

    public function hasFeature(string $feature): bool
    {
        return in_array($feature, $this->features);
    }

    protected function determineIfTorchlightAttributionShouldBeInjected(): bool
    {
        return ! $this->isDocumentationPage()
            && ! (isset($this->pageClass) && $this->pageClass === MarkdownDocument::class)
            && Config::getBool('torchlight.attribution.enabled', true)
            && str_contains($this->html, 'Syntax highlighted by torchlight.dev');
    }

    protected function injectTorchlightAttribution(): string
    {
        return '<br>'.$this->converter->convert(Config::getString(
            'torchlight.attribution.markdown',
            'Syntax highlighted by torchlight.dev'
        ));
    }

    protected function enableAllHtmlElements(): void
    {
        $this->addExtension(DisallowedRawHtmlExtension::class);

        $this->config = array_merge([
            'disallowed_raw_html' => [
                'disallowed_tags' => [],
            ],
        ], $this->config);
    }

    /** Normalize indentation for an un-compiled Markdown string */
    public static function normalizeIndentationLevel(string $string): string
    {
        $lines = self::getNormalizedLines($string);

        [$startNumber, $indentationLevel] = self::findLineContentPositions($lines);

        foreach ($lines as $lineNumber => $line) {
            if ($lineNumber >= $startNumber) {
                $lines[$lineNumber] = substr($line, $indentationLevel);
            }
        }

        return implode("\n", $lines);
    }

    /** @return array<int, string> */
    protected static function getNormalizedLines(string $string): array
    {
        return explode("\n", str_replace(["\t", "\r\n"], ['    ', "\n"], $string));
    }

    /**
     * Find the indentation level and position of the first line that has content.
     *
     * @param  array<int, string>  $lines
     * @return array<int, int>
     */
    protected static function findLineContentPositions(array $lines): array
    {
        foreach ($lines as $lineNumber => $line) {
            if (filled(trim($line))) {
                $lineLen = strlen($line);
                $stripLen = strlen(ltrim($line)); // Length of the line without indentation lets us know its indentation level, and thus how much to strip from each line

                if ($lineLen !== $stripLen) {
                    return [$lineNumber, $lineLen - $stripLen];
                }
            }
        }

        return [0, 0];
    }

    protected function configureCustomHeadingRenderer(): void
    {
        $this->converter->getEnvironment()->addRenderer(Heading::class,
            new HeadingRenderer($this->pageClass, $this->headingRegistry)
        );
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace Hyde\Framework\Services;
6
7			use Hyde\Facades\Config;
8			use Hyde\Facades\Features;
9			use Hyde\Markdown\Models\MarkdownDocument;
10			use Hyde\Markdown\Processing\HeadingRenderer;
11			use Hyde\Framework\Concerns\Internal\SetsUpMarkdownConverter;
12			use Hyde\Pages\DocumentationPage;
13			use Hyde\Markdown\MarkdownConverter;
14			use Hyde\Markdown\Contracts\MarkdownPreProcessorContract as PreProcessor;
15			use Hyde\Markdown\Contracts\MarkdownPostProcessorContract as PostProcessor;
16			use League\CommonMark\Extension\DisallowedRawHtml\DisallowedRawHtmlExtension;
17			use League\CommonMark\Extension\CommonMark\Node\Block\Heading;
18
19			use function str_contains;
20			use function str_replace;
21			use function array_merge;
22			use function array_diff;
23			use function in_array;
24			use function implode;
25			use function explode;
26			use function substr;
27			use function strlen;
28			use function filled;
29			use function ltrim;
30			use function trim;
31
32			/**
33			* Dynamically creates a Markdown converter tailored for the target model and setup,
34			* then converts the Markdown to HTML using both pre- and post-processors.
35			*/
36			class MarkdownService
37			{
38			use SetsUpMarkdownConverter;
39
40			protected string $markdown;
41			protected ?string $pageClass = null;
42
43			protected array $config = [];
44
45			/** @var array<class-string<\League\CommonMark\Extension\ExtensionInterface>> */
			0 ignored issues – show Documentation Bug introduced 2023-03-17 09:11 UTC by Report Bug Copy Issue Report The doc comment `array<class-string<\Leag...on\ExtensionInterface>>` at position `2` could not be parsed: Unknown type name 'class-string' at position 2 in array<class-string<\League\CommonMark\Extension\ExtensionInterface>>. Loading history...
46			protected array $extensions = [];
47			protected MarkdownConverter $converter;
48
49			protected string $html;
50			protected array $features = [];
51
52			/** @var array<class-string<\Hyde\Markdown\Contracts\MarkdownPreProcessorContract>> */
			0 ignored issues – show Documentation Bug introduced 2023-03-17 09:11 UTC by Report Bug Copy Issue Report The doc comment `array<class-string<\Hyde...nPreProcessorContract>>` at position `2` could not be parsed: Unknown type name 'class-string' at position 2 in array<class-string<\Hyde\Markdown\Contracts\MarkdownPreProcessorContract>>. Loading history...
53			protected array $preprocessors = [];
54
55			/** @var array<class-string<\Hyde\Markdown\Contracts\MarkdownPostProcessorContract>> */
			0 ignored issues – show Documentation Bug introduced 2023-03-17 09:11 UTC by Report Bug Copy Issue Report The doc comment `array<class-string<\Hyde...PostProcessorContract>>` at position `2` could not be parsed: Unknown type name 'class-string' at position 2 in array<class-string<\Hyde\Markdown\Contracts\MarkdownPostProcessorContract>>. Loading history...
56			protected array $postprocessors = [];
57
58			/** @var array<string> Tracks all the headings in the document to ensure identifiers are unique */
59			protected array $headingRegistry = [];
60
61			public function __construct(string $markdown, ?string $pageClass = null)
62			{
63			$this->pageClass = $pageClass;
64			$this->markdown = $markdown;
65			}
66
67			public function parse(): string
68			{
69			$this->setupConverter();
70
71			$this->runPreProcessing();
72
73			$this->html = (string) $this->converter->convert($this->markdown);
74
75			$this->runPostProcessing();
76
77			return $this->html;
78			}
79
80			protected function setupConverter(): void
81			{
82			$this->enableDynamicExtensions();
83
84			$this->enableConfigDefinedExtensions();
85
86			$this->mergeMarkdownConfiguration();
87
88			$this->converter = new MarkdownConverter($this->config);
89
90			foreach ($this->extensions as $extension) {
91			$this->initializeExtension($extension);
92			}
93
94			$this->configureCustomHeadingRenderer();
95
96			$this->registerPreProcessors();
97			$this->registerPostProcessors();
98			}
99
100			public function addExtension(string $extensionClassName): void
101			{
102			if (! in_array($extensionClassName, $this->extensions)) {
103			$this->extensions[] = $extensionClassName;
104			}
105			}
106
107			protected function runPreProcessing(): void
108			{
109			/** @var class-string<PreProcessor> $preprocessor */
110			foreach ($this->preprocessors as $preprocessor) {
111			$this->markdown = $preprocessor::preprocess($this->markdown);
112			}
113			}
114
115			protected function runPostProcessing(): void
116			{
117			if ($this->determineIfTorchlightAttributionShouldBeInjected()) {
118			$this->html .= $this->injectTorchlightAttribution();
119			}
120
121			/** @var class-string<PostProcessor> $postprocessor */
122			foreach ($this->postprocessors as $postprocessor) {
123			$this->html = $postprocessor::postprocess($this->html);
124			}
125			}
126
127			public function getExtensions(): array
128			{
129			return $this->extensions;
130			}
131
132			public function removeFeature(string $feature): static
133			{
134			if (in_array($feature, $this->features)) {
135			$this->features = array_diff($this->features, [$feature]);
136			}
137
138			return $this;
139			}
140
141			public function addFeature(string $feature): static
142			{
143			if (! in_array($feature, $this->features)) {
144			$this->features[] = $feature;
145			}
146
147			return $this;
148			}
149
150			public function isDocumentationPage(): bool
151			{
152			return isset($this->pageClass) && $this->pageClass === DocumentationPage::class;
153			}
154
155			public function withTableOfContents(): static
156			{
157			$this->addFeature('table-of-contents');
158
159			return $this;
160			}
161
162			public function canEnableTorchlight(): bool
163			{
164			return $this->hasFeature('torchlight') \|\|
165			Features::hasTorchlight();
166			}
167
168			public function hasFeature(string $feature): bool
169			{
170			return in_array($feature, $this->features);
171			}
172
173			protected function determineIfTorchlightAttributionShouldBeInjected(): bool
174			{
175			return ! $this->isDocumentationPage()
176			&& ! (isset($this->pageClass) && $this->pageClass === MarkdownDocument::class)
177			&& Config::getBool('torchlight.attribution.enabled', true)
178			&& str_contains($this->html, 'Syntax highlighted by torchlight.dev');
179			}
180
181			protected function injectTorchlightAttribution(): string
182			{
183			return '<br>'.$this->converter->convert(Config::getString(
184			'torchlight.attribution.markdown',
185			'Syntax highlighted by torchlight.dev'
186			));
187			}
188
189			protected function enableAllHtmlElements(): void
190			{
191			$this->addExtension(DisallowedRawHtmlExtension::class);
192
193			$this->config = array_merge([
194			'disallowed_raw_html' => [
195			'disallowed_tags' => [],
196			],
197			], $this->config);
198			}
199
200			/** Normalize indentation for an un-compiled Markdown string */
201			public static function normalizeIndentationLevel(string $string): string
202			{
203			$lines = self::getNormalizedLines($string);
204
205			[$startNumber, $indentationLevel] = self::findLineContentPositions($lines);
206
207			foreach ($lines as $lineNumber => $line) {
208			if ($lineNumber >= $startNumber) {
209			$lines[$lineNumber] = substr($line, $indentationLevel);
210			}
211			}
212
213			return implode("\n", $lines);
214			}
215
216			/** @return array<int, string> */
217			protected static function getNormalizedLines(string $string): array
218			{
219			return explode("\n", str_replace(["\t", "\r\n"], [' ', "\n"], $string));
220			}
221
222			/**
223			* Find the indentation level and position of the first line that has content.
224			*
225			* @param array<int, string> $lines
226			* @return array<int, int>
227			*/
228			protected static function findLineContentPositions(array $lines): array
229			{
230			foreach ($lines as $lineNumber => $line) {
231			if (filled(trim($line))) {
232			$lineLen = strlen($line);
233			$stripLen = strlen(ltrim($line)); // Length of the line without indentation lets us know its indentation level, and thus how much to strip from each line
234
235			if ($lineLen !== $stripLen) {
236			return [$lineNumber, $lineLen - $stripLen];
237			}
238			}
239			}
240
241			return [0, 0];
242			}
243
244			protected function configureCustomHeadingRenderer(): void
245			{
246			$this->converter->getEnvironment()->addRenderer(Heading::class,
247			new HeadingRenderer($this->pageClass, $this->headingRegistry)
248			);
249			}
250			}
251

hydephp / develop

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MarkdownService::normalizeIndentationLevel() A

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