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<?php |
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/** |
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* @copyright Copyright (c) 2014 Carsten Brandt |
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* @license https://github.com/cebe/markdown/blob/master/LICENSE |
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* @link https://github.com/cebe/markdown#readme |
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*/ |
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|
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namespace cebe\markdownparser\block; |
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|
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/** |
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* Adds the fenced code blocks |
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* |
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* automatically included 4 space indented code blocks |
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*/ |
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trait FencedCodeTrait |
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{ |
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use CodeTrait; |
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|
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/** |
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* identify a line as the beginning of a fenced code block. |
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*/ |
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protected function identifyFencedCode($line) |
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{ |
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return ($line[0] === '`' && strncmp($line, '```', 3) === 0) || |
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($line[0] === '~' && strncmp($line, '~~~', 3) === 0) || |
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(isset($line[3]) && ( |
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($line[3] === '`' && strncmp(ltrim($line), '```', 3) === 0) || |
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($line[3] === '~' && strncmp(ltrim($line), '~~~', 3) === 0) |
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)); |
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} |
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|
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/** |
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* Consume lines for a fenced code block |
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*/ |
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protected function consumeFencedCode($lines, $current) |
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{ |
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$line = ltrim($lines[$current]); |
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$fence = substr($line, 0, $pos = strrpos($line, $line[0]) + 1); |
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$language = rtrim(substr($line, $pos)); |
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// consume until end fence |
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$content = []; |
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for ($i = $current + 1, $count = count($lines); $i < $count; $i++) { |
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if (($pos = strpos($line = $lines[$i], $fence)) === false || $pos > 3) { |
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$content[] = $line; |
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} else { |
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break; |
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} |
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} |
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$block = [ |
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'code', |
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'content' => implode("\n", $content), |
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]; |
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if (!empty($language)) { |
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$block['language'] = $language; |
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} |
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return [$block, $i]; |
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} |
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} |
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|
