Not matching parentheses in regex

[naoliv]

​http://docs.oracle.com/javase/6/docs/api/java/util/regex/Pattern.html#bs says that to match something having a parentheses we need to double escape it.

Using this rule

*[name =~ /\\(foo\\)/] {
        throwWarning: tr("foo");
}

and something with name=(foo) doesn't match anything, however.
No error is displayed on console (so it seems to be parsed correctly).

[simon04]

In 7115/josm:

fix #9783 - MapCSS: allow to regexp-match name=(foo) by [name =~ /\(foo\)/]