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// Filebuffer -- Fast and simple file reading
// Copyright 2016 Ruud van Asseldonk
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// A copy of the License has been included in the root of the repository.
// This example implements the `head` program in Rust using the Filebuffer library.
// Input files are assumed to be valid UTF-8.
use std::env;
use std::str;
use filebuffer::FileBuffer;
extern crate filebuffer;
fn main() {
for fname in env::args().skip(1) {
println!("==> {} <==", &fname);
let fbuffer = FileBuffer::open(&fname).expect("failed to open file");
let lines = str::from_utf8(&fbuffer).expect("not valid UTF-8").lines();
for line in lines.take(10) {
println!("{}", line);
}
}
}
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