text($md);
if ($no_paragraph)
$html = preg_replace('/(.*?)<\/p>/', '$1', $html);
else {
// collect references
$re = '/^
(\[([io]?\d{1,2})]) (.*?)<\/p>/m';
$result = preg_match_all($re, $html, $matches);
if (pcre_no_error($result)) {
$reftitles_map = [];
foreach ($matches[2] as $i => $refname) {
$reftitles_map[$refname] = trim(strip_tags($matches[3][$i]));
}
$span_opening_tag = ' $3
', $html);
$re = '/'.implode('|', array_map(fn($m) => '(?:'.$span_opening_tag.')?'.preg_quote($m, '/'), $matches[1])).'/';
$html = preg_replace_callback($re,
function($match) use ($span_opening_tag, $reftitles_map) {
if (str_starts_with($match[0], $span_opening_tag))
return $match[0];
if (!preg_match('/\[([io]?\d{1,2})]/', $match[0], $refmatch))
return $match[0];
$refname = $refmatch[1];
$reftitle = $reftitles_map[$refname];
return ''.$match[0].'';
}, $html);
}
}
return $html;
}
public static function toc(string $md): string {
$pd = new MyParsedown([
'toc' => [
'lowercase' => true,
'transliterate' => true,
'urlencode' => false,
'headings' => ['h1', 'h2', 'h3']
]
]);
$pd->text($md);
return $pd->contentsList();
}
public static function htmlToText(string $html): string {
$text = html_entity_decode(strip_tags($html));
$lines = explode("\n", $text);
$lines = array_map('trim', $lines);
$text = implode("\n", $lines);
$text = preg_replace("/(\r?\n){2,}/", "\n\n", $text);
return $text;
}
public static function htmlImagesFix(string $html, bool $is_retina, string $user_theme): string {
global $config;
$is_dark_theme = $user_theme === 'dark';
return preg_replace_callback(
'/('.preg_quote($config['uploads_path'], '/').'\/\w{8}\/)([ap])(\d+)x(\d+)(\.jpg)/',
function($match) use ($is_retina, $is_dark_theme) {
$mult = $is_retina ? 2 : 1;
$is_alpha = $match[2] == 'a';
return $match[1].$match[2].(intval($match[3])*$mult).'x'.(intval($match[4])*$mult).($is_alpha && $is_dark_theme ? '_dark' : '').$match[5];
},
$html
);
}
}