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