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<?php |
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namespace Pilipinews\Common\Converters; |
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use League\HTMLToMarkdown\Configuration; |
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use League\HTMLToMarkdown\ConfigurationAwareInterface; |
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use League\HTMLToMarkdown\Converter\ConverterInterface; |
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use League\HTMLToMarkdown\ElementInterface; |
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/** |
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* Emphasis Converter |
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* |
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* @package Pilipinews |
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* @author Rougin Royce Gutib <[email protected]> |
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*/ |
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class EmphasisConverter implements ConverterInterface, ConfigurationAwareInterface |
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{ |
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/** |
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* @var \League\HTMLToMarkdown\Configuration |
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*/ |
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protected $config; |
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/** |
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* Sets the configuration instance. |
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* |
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* @param \League\HTMLToMarkdown\Configuration $config |
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*/ |
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public function setConfig(Configuration $config) |
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{ |
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$this->config = $config; |
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} |
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/** |
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* Converts the specified element into a parsed string. |
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* |
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* @param \League\HTMLToMarkdown\ElementInterface $element |
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* @return string |
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*/ |
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public function convert(ElementInterface $element) |
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{ |
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$tag = $element->getTagName(); |
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$value = $element->getValue(); |
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if ($tag === 'i' || $tag === 'em') { |
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$style = $this->config->getOption('italic_style'); |
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} else { |
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$style = $this->config->getOption('bold_style'); |
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if (! $this->hasLinks($value)) { |
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$value = mb_convert_case($value, MB_CASE_UPPER, 'UTF-8'); |
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} |
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} |
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list($prefix, $suffix) = $this->prefixSuffix($value); |
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return $prefix . $style . trim($value) . $style . $suffix; |
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} |
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/** |
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* Returns the supported HTML tags. |
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* |
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* @return string[] |
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*/ |
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public function getSupportedTags() |
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{ |
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return array('em', 'i', 'strong', 'b'); |
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} |
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/** |
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* Checks if the specified string contains a URL. |
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* |
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* @param string $string |
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* @return boolean |
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*/ |
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protected function hasLinks($string) |
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{ |
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$regex = '(https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|www\.[a-zA-Z0-9][a-zA-Z0-9-]+[a-zA-Z0-9]\.[^\s]{2,}|https?:\/\/(?:www\.|(?!www))[a-zA-Z0-9]\.[^\s]{2,}|www\.[a-zA-Z0-9]\.[^\s]{2,})'; |
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preg_match($regex, $string, $matches); |
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return isset($matches[0]) === true; |
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} |
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/** |
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* Returns prefix and suffix of a specified string. |
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* |
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* @param string $string |
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* @return string |
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*/ |
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protected function prefixSuffix($string) |
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{ |
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$prefix = ltrim($string) !== $string ? ' ' : ''; |
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$suffix = rtrim($string) !== $string ? ' ' : ''; |
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return (array) array($prefix, $suffix); |
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} |
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} |
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pilipinews /
common
