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<?php |
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namespace allejo\stakx\Engines\Markdown; |
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use allejo\stakx\Engines\ParsingEngine; |
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use Highlight\Highlighter; |
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class MarkdownEngine extends \ParsedownExtra implements ParsingEngine |
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{ |
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protected $highlighter; |
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public function __construct () |
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{ |
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parent::__construct(); |
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$this->highlighter = new Highlighter(); |
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} |
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protected function blockHeader($line) |
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{ |
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$Block = parent::blockHeader($line); |
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// Create our unique ids by sanitizing the header content |
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$id = strtolower($Block['element']['text']); |
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$id = str_replace(' ', '-', $id); |
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$id = preg_replace('/[^0-9a-zA-Z-_]/', '', $id); |
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$id = preg_replace('/-+/', '-', $id); |
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$Block['element']['attributes']['id'] = $id; |
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return $Block; |
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} |
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public function blockFencedCodeComplete ($block) |
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{ |
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// The class has a `language-` prefix, remove this to get the language |
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if (isset($block['element']['text']['attributes'])) |
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{ |
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$cssClass = &$block['element']['text']['attributes']['class']; |
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$language = substr($cssClass, 9); |
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$cssClass = 'hljs ' . $cssClass; |
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try |
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{ |
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$highlighted = $this->highlighter->highlight($language, $block['element']['text']['text']); |
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$block['element']['text']['text'] = $highlighted->value; |
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// Only return the block if Highlighter knew the language and how to handle it. |
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return $block; |
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} |
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// Exception thrown when language not supported |
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catch (\DomainException $exception) |
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{ |
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trigger_error("An unsupported language ($language) was detected in a code block", E_USER_WARNING); |
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} |
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} |
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return parent::blockFencedCodeComplete($block); |
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} |
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} |
stakx-io /
stakx
