Bug 3414 – std.file.listdir: Use regex, not RegExp

std.file.listdir still uses the old-school std.regexp lib, even though this will likely be deprecated soon. Here's a version using the new-school std.regex. string[] listdir(Char)(in char[] pathname, Regex!(Char) r) { Appender!(string[]) result; bool callback(DirEntry* de) { if (de.isdir) listdir(de.name, &callback); else { if (!match(de.name, r).empty) result.put(de.name); } return true; // continue } listdir(pathname, &callback); return result.data; }

Since listdir is deprecated now, I think it's safe to close this. The leftover import to std.regexp should be removed once listdir is removed, since the rest of the module doesn't use it. P.S. We really need an "OUTDATED" as a reason in the RESOLVED section. :)