Crate grabinput [−] [src]

This library really is intended to be dirt simple. It doesn't do much--just allows you to skip some typing when you want to read something. Like, say you want to write a program to add up all the integers in a file...

extern crate grabinput;

let sum: i32 = grabinput::from_args().with_fallback()
    .filter_map(|n| n.trim().parse::<i32>().ok())
    .sum();

That's your whole program now. I thought about having the library trim newlines from the end of each line, because .NET's similar library functions will do that, but I guess I just figured it was faster to let the user decide--no reason to make them pay for the work if they don't care if it's done or not, right? Anyway...

Structs

FromFile	`FromFile` provides a convenient wrapper for an optional file.
FromStdin	`FromStdin` wraps a buffered `Stdin`.
WithFallback	`WithFallBack` wraps an optional file stream and standard input stream.

Functions

from_args	Creates an input handle based on `std::env::args().nth(1)`.
from_optional_path	Creates an input handle based on an optional path.
from_path	Creates an input handle based on the provided path.
from_stdin	Creates an input handle based on standard in.