Read a pipeline

Read a pipeline

Run from the repository or distribution root. Put xen on PATH, or substitute ./bin/xen.

Without a pipeline the program waits for end of input.

Run

printf 'one two\nthree\n' | xen run examples/stdin_words.xen

Expected output

one
two
three

Complete source

stdin_words.xen

// SPDX-License-Identifier: MIT OR Apache-2.0
use std.io as io;
use std.string as text;

fn main() {
    let contents = match io.read_stdin() {
        Result.Ok(value) => value,
        Result.Err(error) => { panic(io.describe_error(error)); },
    };
    let words = text.split_ascii_whitespace(contents);
    for index in 0..words.len() {
        println(words.get(index));
    }
}

Download file

Build an executable

xen build examples/stdin_words.xen -o app

Run the generated executable on a compatible Linux machine.