private function createStyleFromString($string)
{
if (isset($this->styles[$string])) {
return $this->styles[$string];
}
if (!preg_match_all('/([^=]+)=([^;]+)(;|$)/', $string, $matches, PREG_SET_ORDER)) {
return false;
}
$style = new OutputFormatterStyle();
foreach ($matches as $match) {
array_shift($match);
if ('fg' == $match[0]) {
$style->setForeground($match[1]);
} elseif ('bg' == $match[0]) {
$style->setBackground($match[1]);
} elseif ('options' === $match[0]) {
preg_match_all('([^,;]+)', $match[1], $options);
$options = array_shift($options);
foreach ($options as $option) {
try {
$style->setOption($option);
} catch (\InvalidArgumentException $e) {
@trigger_error(sprintf('Unknown style options are deprecated since version 3.2 and will be removed in 4.0. Exception "%s".', $e->getMessage()), E_USER_DEPRECATED);
return false;
}
}
} else {
return false;
}
}
return $style;
}