mirror of
https://github.com/friendica/friendica
synced 2024-09-25 20:11:21 +02:00
79 lines
1.9 KiB
PHP
79 lines
1.9 KiB
PHP
<?php
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namespace League\HTMLToMarkdown\Converter;
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use League\HTMLToMarkdown\Configuration;
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use League\HTMLToMarkdown\ConfigurationAwareInterface;
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use League\HTMLToMarkdown\ElementInterface;
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class HeaderConverter implements ConverterInterface, ConfigurationAwareInterface
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{
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const STYLE_ATX = 'atx';
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const STYLE_SETEXT = 'setext';
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/**
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* @var Configuration
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*/
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protected $config;
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/**
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* @param 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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* @param ElementInterface $element
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*
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* @return string
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*/
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public function convert(ElementInterface $element)
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{
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$level = (int) substr($element->getTagName(), 1, 1);
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$style = $this->config->getOption('header_style', self::STYLE_SETEXT);
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if (($level === 1 || $level === 2) && !$element->isDescendantOf('blockquote') && $style === self::STYLE_SETEXT) {
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return $this->createSetextHeader($level, $element->getValue());
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}
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return $this->createAtxHeader($level, $element->getValue());
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}
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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('h1', 'h2', 'h3', 'h4', 'h5', 'h6');
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}
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/**
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* @param int $level
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* @param string $content
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*
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* @return string
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*/
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private function createSetextHeader($level, $content)
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{
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$length = function_exists('mb_strlen') ? mb_strlen($content, 'utf-8') : strlen($content);
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$underline = ($level === 1) ? '=' : '-';
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return $content . "\n" . str_repeat($underline, $length) . "\n\n";
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}
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/**
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* @param int $level
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* @param string $content
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*
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* @return string
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*/
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private function createAtxHeader($level, $content)
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{
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$prefix = str_repeat('#', $level) . ' ';
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return $prefix . $content . "\n\n";
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}
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}
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