preg_match() cutting line one Black (black.png)

[amarantha]

Used preg_match() for the selection of that line, which may have several options:

1.Черный (black.png)
   1.Черный (black.png)
Черный (black.png)
1.Черный
   1.Черный
Черный

We need to have the meaning of: (1) The figure to the point (if there is a figure with a point) (2) after the point to the brackets (if any) (3) What is in round brackets (if any)

I've been able to read the options without the meaning of the brackets:

/(^\d+)?\.?\s+?(.*)/u

Can you tell me the options or help the council?

[simrah]

You can move away from the next option.

$text = '1.Черный (black.png)';
$text = '   1.Черный (black.png)';
$text = 'Черный (black.png)';
$text = '1.Черный';
$text = '   1.Черный';
$text = 'Черный';
$pattern = '/^\s*(?:(\d+)\.)?([^\n]+?)(?:\(([^\)]+)\))?$/';
preg_match($pattern, $text, $out);
echo '<pre>';
print_r($out);