/**
* @param string $str
* @param string $element
*
* @return string
*/
private function convertElement($str, $element)
{
$options = $this->getOptionsForElement($element);
if (!$options) {
return $str;
}
if (isset($options['case']) && $options['case'] != self::OPTION_NONE) {
$mode = self::$caseModeMapping[$options['case']];
// string can contain HTML tags
$chunks = preg_split('/(<[^>]*>)/', $str, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
// convert only the text between HTML tags
foreach ($chunks as $i => &$chunk) {
if ($chunk[0] !== '<') {
$chunk = UTF8::html_entity_decode($str);
$chunk = mb_convert_case($chunk, $mode, 'UTF-8');
$chunk = htmlspecialchars_decode($chunk, ENT_QUOTES);
}
}
$str = implode($chunks);
if ($options['case'] == self::OPTION_UCFIRST) {
$str = UTF8::ucfirst($str);
}
}
if (isset($options['replace']) && $options['replace']) {
if (isset($options['replace'][2])) {
$delimiter = $options['replace'][2];
} else {
$delimiter = '@';
}
$str = preg_replace($delimiter . $options['replace'][0] . $delimiter, $options['replace'][1], $str);
}
if (isset($options['prepend']) && $options['prepend']) {
$str = $options['prepend'] . $str;
}
if (isset($options['append']) && $options['append']) {
$str .= $options['append'];
}
return $str;
}
