Regex get everything after specific matched parenthesis based on value inside them

Question

So I have a list of vinyl records that I own, and I am trying to remove some text from their results off of discog, the strings can look something like this;

Artist - Title (12") (Warner Bros - WB1210)
Artist - Title (12", Promo) (Warner Bros - WB1212)
Artist - Title (Summer Mix) (12", Promo) (Warner Bros - WB1444)
Artist - Title (12", LP Album) (Warner Bros- - WB9449)
Artist - Title (12", Red) (Warner Bros - WB1211)
Artist - Title

I want to remove the last set of parenthesis so they read;

Artist - Title (12")
Artist - Title (12", Promo)
Artist - Title (Summer Mix) (12", Promo)
Artist - Title (12", LP Album)
Artist - Title (12", Red)
Artist - Title

I have tried this regex pattern, with no luck;

(?<=\(12"(.*)\)[ ]).*

If I just use (?<=(12").) everything after 12" is highlighted, so I assumed add (.)) would get everything between 12" and the closing parenthesis, obviously it is not. Any ideas?

Answer 1

You can use something simple like,

(.*) \(

See it working on regex101.com.

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To handle the newly added case where there are no parens at all, you can just use code. If there is no match, just dump the original string. I wrote up a little code snippet using your sample strings.

string[] testStrings = new[] { "Artist - Title (12\") (Warner Bros - WB1210)", "Artist - Title (12\", Promo) (Warner Bros - WB1212)", "Artist - Title (Summer Mix) (12\", Promo) (Warner Bros - WB1444)", "Artist - Title (12\", LP Album) (Warner Bros- - WB9449)", "Artist - Title (12\", Red) (Warner Bros - WB1211)", "Artist - Title" };
Regex regex = new Regex(@"(.*) \(");
foreach (var s in testStrings)
{
    Match match = regex.Match(s);
    Console.WriteLine(match.Success ? match.Groups[1].Value : s);
}

This outputs

Artist - Title (12")
Artist - Title (12", Promo)
Artist - Title (Summer Mix) (12", Promo)
Artist - Title (12", LP Album)
Artist - Title (12", Red)
Artist - Title