diff options
Diffstat (limited to 'vendor/league/html-to-markdown/src/Converter/CodeConverter.php')
-rw-r--r-- | vendor/league/html-to-markdown/src/Converter/CodeConverter.php | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/vendor/league/html-to-markdown/src/Converter/CodeConverter.php b/vendor/league/html-to-markdown/src/Converter/CodeConverter.php new file mode 100644 index 000000000..c8ec2c005 --- /dev/null +++ b/vendor/league/html-to-markdown/src/Converter/CodeConverter.php @@ -0,0 +1,62 @@ +<?php + +namespace League\HTMLToMarkdown\Converter; + +use League\HTMLToMarkdown\ElementInterface; + +class CodeConverter implements ConverterInterface +{ + /** + * @param ElementInterface $element + * + * @return string + */ + public function convert(ElementInterface $element) + { + $language = null; + + // Checking for language class on the code block + $classes = $element->getAttribute('class'); + + if ($classes) { + // Since tags can have more than one class, we need to find the one that starts with 'language-' + $classes = explode(' ', $classes); + foreach ($classes as $class) { + if (strpos($class, 'language-') !== false) { + // Found one, save it as the selected language and stop looping over the classes. + // The space after the language avoids gluing the actual code with the language tag + $language = str_replace('language-', '', $class) . ' '; + break; + } + } + } + + $markdown = ''; + $code = html_entity_decode($element->getChildrenAsString()); + + // In order to remove the code tags we need to search for them and, in the case of the opening tag + // use a regular expression to find the tag and the other attributes it might have + $code = preg_replace('/<code\b[^>]*>/', '', $code); + $code = str_replace('</code>', '', $code); + + // Checking if the code has multiple lines + $lines = preg_split('/\r\n|\r|\n/', $code); + if (count($lines) > 1) { + // Multiple lines detected, adding three backticks and newlines + $markdown .= '```' . $language . "\n" . $code . "\n" . '```'; + } else { + // One line of code, wrapping it on one backtick. + $markdown .= '`' . $language . $code . '`'; + } + + return $markdown; + } + + /** + * @return string[] + */ + public function getSupportedTags() + { + return array('code'); + } +} |