Google Code Jam 2011 Language Usage

[Andrej Mitrovic]

I'm very happy with using Jesse's interact library for user input:
https://github.com/he-the-great/JPDLibs/tree/cmdln

Last time I've used it I combined it with std.conv since I needed
either a number or a "q" from the user, e.g.:

int input;
auto line = userInput!string("Enter value:");
if (line == "q")
{
    quit();
}
else if (!throws!(ConvException)( { input = to!int(line); } ))  // try
converting to int
{
    if (input >= -127 && input <= 127)
    {
        // do something
    }
}

Here throws() is just a custom function that asserts that a delegate throws.