mirror of https://github.com/friendica/friendica
60 lines
1.8 KiB
PHP
60 lines
1.8 KiB
PHP
<?php
|
|
|
|
namespace League\HTMLToMarkdown\Converter;
|
|
|
|
use League\HTMLToMarkdown\ElementInterface;
|
|
|
|
class PreformattedConverter implements ConverterInterface
|
|
{
|
|
/**
|
|
* @param ElementInterface $element
|
|
*
|
|
* @return string
|
|
*/
|
|
public function convert(ElementInterface $element)
|
|
{
|
|
$markdown = '';
|
|
|
|
$pre_content = html_entity_decode($element->getChildrenAsString());
|
|
$pre_content = str_replace(array('<pre>', '</pre>'), '', $pre_content);
|
|
|
|
/*
|
|
* Checking for the code tag.
|
|
* Usually pre tags are used along with code tags. This conditional will check for already converted code tags,
|
|
* which use backticks, and if those backticks are at the beginning and at the end of the string it means
|
|
* there's no more information to convert.
|
|
*/
|
|
|
|
$firstBacktick = strpos(trim($pre_content), '`');
|
|
$lastBacktick = strrpos(trim($pre_content), '`');
|
|
if ($firstBacktick === 0 && $lastBacktick === strlen(trim($pre_content)) - 1) {
|
|
return $pre_content;
|
|
}
|
|
|
|
// If the execution reaches this point it means it's just a pre tag, with no code tag nested
|
|
|
|
// Normalizing new lines
|
|
$pre_content = preg_replace('/\r\n|\r|\n/', PHP_EOL, $pre_content);
|
|
|
|
// Checking if the string has multiple lines
|
|
$lines = preg_split('/\r\n|\r|\n/', $pre_content);
|
|
if (count($lines) > 1) {
|
|
// Multiple lines detected, adding three backticks and newlines
|
|
$markdown .= '```' . "\n" . $pre_content . "\n" . '```';
|
|
} else {
|
|
// One line of code, wrapping it on one backtick.
|
|
$markdown .= '`' . $pre_content . '`';
|
|
}
|
|
|
|
return $markdown;
|
|
}
|
|
|
|
/**
|
|
* @return string[]
|
|
*/
|
|
public function getSupportedTags()
|
|
{
|
|
return array('pre');
|
|
}
|
|
}
|