private static string ParseArg(Environment e)
{
e.Check(e.Peek() == '-', "Invalid beginning of Key construct");
var arg = ParseName(e, false);
while (!e.EOL() && e.Peek() == ':')
{
e.Advance();
arg += ":";
arg += ParseName(e, e.Peek() == '"').Replace(":", "|Colon|"); //Dirtyfix
}
return(arg);
}