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<?php |
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namespace Hyde\Framework\Modules\Markdown; |
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use Hyde\Framework\Contracts\MarkdownPostProcessorContract; |
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use Hyde\Framework\Contracts\MarkdownPreProcessorContract; |
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/** |
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* Resolves file path comments found in Markdown code blocks into a neat badge shown in the top right corner. |
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* |
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* @see \Hyde\Framework\Testing\Feature\Services\Markdown\CodeblockFilepathProcessorTest |
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*/ |
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class CodeblockFilepathProcessor implements MarkdownPreProcessorContract, MarkdownPostProcessorContract |
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{ |
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/** |
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* Extract lines matching the shortcode pattern and replace them with meta-blocks that will be processed later. |
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*/ |
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public static function preprocess(string $markdown): string |
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{ |
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$lines = explode("\n", $markdown); |
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foreach ($lines as $index => $line) { |
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if (static::lineMatchesPattern($line) && ! str_contains($line, '{"shortcodes": false}')) { |
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// Add the meta-block two lines before the pattern, placing it just above the code block. |
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// This prevents the meta-block from interfering with other processes. |
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$lines[$index - 2] .= sprintf( |
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"\n<!-- HYDE[Filepath]%s -->", |
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trim(str_replace(static::$patterns, '', $line)) |
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); |
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// Remove the original comment lines |
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unset($lines[$index]); |
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// Only unset the next line if it's empty |
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if (trim($lines[$index + 1]) === '') { |
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unset($lines[$index + 1]); |
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} |
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} |
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} |
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return implode("\n", $lines); |
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} |
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/** |
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* Process the meta-blocks added by the preprocessor, injecting the filepath badge template into the code block. |
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*/ |
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public static function postprocess(string $html): string |
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{ |
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$lines = explode("\n", $html); |
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/** @var int $index */ |
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foreach ($lines as $index => $line) { |
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if (str_starts_with($line, '<!-- HYDE[Filepath]')) { |
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$path = static::trimHydeDirective($line); |
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unset($lines[$index]); |
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$codeBlockLine = $index + 1; |
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$label = static::resolveTemplate($path); |
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$lines[$codeBlockLine] = str_contains($html, static::$torchlightKey) |
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? static::injectLabelToTorchlightCodeLine($label, $lines[$codeBlockLine]) |
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: static::injectLabelToCodeLine($label, $lines[$codeBlockLine]); |
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} |
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} |
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return implode("\n", $lines); |
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} |
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protected static array $patterns = [ |
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'// filepath: ', |
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'// Filepath: ', |
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'# filepath: ', |
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'# Filepath: ', |
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'// filepath ', |
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'// Filepath ', |
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'# filepath ', |
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'# Filepath ', |
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]; |
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protected static string $torchlightKey = '<!-- Syntax highlighted by torchlight.dev -->'; |
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protected static function lineMatchesPattern(string $line): bool |
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{ |
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foreach (static::$patterns as $pattern) { |
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if (str_starts_with($line, $pattern)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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protected static function trimHydeDirective(string $line): string |
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{ |
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return trim(str_replace('-->', '', str_replace( |
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'<!-- HYDE[Filepath]', |
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'', |
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$line |
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))); |
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} |
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protected static function resolveTemplate(string $path): string |
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{ |
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return view('hyde::components.filepath-label', [ |
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'path' => $path, |
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])->render(); |
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} |
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protected static function injectLabelToTorchlightCodeLine(string $label, string $lines): string |
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{ |
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return str_replace( |
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static::$torchlightKey, |
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static::$torchlightKey.$label, |
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$lines |
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); |
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} |
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protected static function injectLabelToCodeLine(string $label, string $lines): string |
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{ |
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return preg_replace( |
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'/<pre><code class="language-(.*?)">/', |
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'<pre><code class="language-$1">'.$label, |
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$lines |
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); |
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} |
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} |
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hydephp /
develop
