mirror of
https://github.com/uutils/coreutils
synced 2024-07-09 04:06:02 +00:00
Merge branch 'master' of https://github.com/benhirsch24/coreutils into benhirsch-od
Conflicts: Makefile
This commit is contained in:
commit
f1436f985d
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@ -146,7 +146,6 @@ To do
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- mktemp
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- mv (almost done, one more option)
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- numfmt
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- od
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- pathchk
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- pinky
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- pr
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118
od/od.rs
Normal file
118
od/od.rs
Normal file
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@ -0,0 +1,118 @@
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#![crate_name = "od"]
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/*
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* This file is part of the uutils coreutils package.
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*
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* (c) Ben Hirsch <benhirsch24@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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extern crate getopts;
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extern crate collections;
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use collections::string::String;
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use std::io::File;
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#[deriving(Show)]
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enum Radix { Decimal, Hexadecimal, Octal, Binary }
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pub fn uumain(args: Vec<String>) -> int {
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let opts = [
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getopts::optopt("A", "address-radix", "Select the base in which file offsets are printed.", "RADIX"),
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getopts::optopt("j", "skip-bytes", "Skip bytes input bytes before formatting and writing.", "BYTES"),
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getopts::optopt("N", "read-bytes", "limit dump to BYTES input bytes", "BYTES"),
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getopts::optopt("S", "strings", "output strings of at least BYTES graphic chars. 3 is assumed when BYTES is not specified.", "BYTES"),
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getopts::optopt("t", "format", "select output format or formats", "TYPE"),
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getopts::optflag("v", "output-duplicates", "do not use * to mark line suppression"),
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getopts::optopt("w", "width", "output BYTES bytes per output line. 32 is implied when BYTES is not specified.", "BYTES"),
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getopts::optflag("h", "help", "display this help and exit."),
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getopts::optflag("v", "version", "output version information and exit."),
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];
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let matches = match getopts::getopts(args.tail(), opts) {
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Ok(m) => m,
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Err(f) => fail!("Invalid options\n{}", f)
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};
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let mut rad = Octal;
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if matches.opt_present("A") {
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rad = parse_radix(matches.opt_str("A"));
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} else {
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println!("{}", getopts::usage("od", opts));
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}
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let mut fname;
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match args.last() {
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Some(n) => fname = n,
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None => { fail!("Need fname for now") ; }
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};
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main(rad, fname.clone());
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0
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}
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fn main(radix: Radix, fname: String) {
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let mut f = match File::open(&Path::new(fname)) {
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Ok(f) => f,
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Err(e) => fail!("file error: {}", e)
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};
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let mut addr = 0;
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let mut bytes = [0, .. 16];
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loop {
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match f.read(bytes) {
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Ok(n) => {
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print!("{:07o}", addr);
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match radix {
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Decimal => {
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},
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Octal => {
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for b in range(0, n/std::u16::BYTES) {
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let bs = bytes.slice(2*b, 2*b+2);
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let p: u16 = bs[1] as u16 << 8 | bs[0] as u16;
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print!(" {:06o}", p);
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}
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if n % std::u16::BYTES == 1 {
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print!(" {:06o}", bytes[n-1]);
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}
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}
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_ => { }
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};
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print!("\n");
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addr += n;
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},
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Err(_) => { println!("{:07o}", addr); break; }
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};
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};
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}
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fn parse_radix(radix_str: Option<String>) -> Radix {
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let rad = match radix_str {
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Some(s) => {
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let st = s.into_bytes();
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if st.len() != 1 {
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fail!("Radix must be one of [d, o, b, x]\n");
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}
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let radix: char = *st.get(0) as char;
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if radix == 'd' {
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Decimal
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} else if radix == 'x' {
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Hexadecimal
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} else if radix == 'o' {
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Octal
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} else if radix == 'b' {
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Binary
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} else {
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fail!("Radix must be one of [d, o, b, x]\n");
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}
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},
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None => Octal
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};
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rad
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}
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