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<?php
namespace League\HTMLToMarkdown\Converter;
use League\HTMLToMarkdown\Configuration;
use League\HTMLToMarkdown\ConfigurationAwareInterface;
use League\HTMLToMarkdown\ElementInterface;
class ListItemConverter implements ConverterInterface, ConfigurationAwareInterface
{
/**
* @var Configuration
*/
protected $config;
/**
* @var string
*/
protected $listItemStyle;
/**
* @param Configuration $config
*/
public function setConfig(Configuration $config)
{
$this->config = $config;
}
/**
* @param ElementInterface $element
*
* @return string
*/
public function convert(ElementInterface $element)
{
// If parent is an ol, use numbers, otherwise, use dashes
$list_type = $element->getParent()->getTagName();
// Add spaces to start for nested list items
$level = $element->getListItemLevel($element);
$prefixForParagraph = str_repeat(' ', $level + 1);
$value = trim(implode("\n" . $prefixForParagraph, explode("\n", trim($element->getValue()))));
// If list item is the first in a nested list, add a newline before it
$prefix = '';
if ($level > 0 && $element->getSiblingPosition() === 1) {
$prefix = "\n";
}
if ($list_type === 'ul') {
$list_item_style = $this->config->getOption('list_item_style', '-');
$list_item_style_alternate = $this->config->getOption('list_item_style_alternate');
if (!isset($this->listItemStyle)) {
$this->listItemStyle = $list_item_style_alternate ? $list_item_style_alternate : $list_item_style;
}
if ($list_item_style_alternate && $level == 0 && $element->getSiblingPosition() === 1) {
$this->listItemStyle = $this->listItemStyle == $list_item_style ? $list_item_style_alternate : $list_item_style;
}
return $prefix . $this->listItemStyle . ' ' . $value . "\n";
}
if ($list_type === 'ol' && $start = $element->getParent()->getAttribute('start')) {
$number = $start + $element->getSiblingPosition() - 1;
} else {
$number = $element->getSiblingPosition();
}
return $prefix . $number . '. ' . $value . "\n";
}
/**
* @return string[]
*/
public function getSupportedTags()
{
return array('li');
}
}
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