file dumper

gistfile1.ceylon

import ceylon.file { File, Path, parsePath }
import ceylon.io   { OpenFile, newOpenFile }
import ceylon.io.charset { utf8, Decoder }
import ceylon.io.buffer  { ByteBuffer }
import java.util { ArrayList }

shared void cat(String filename) {
    Path path = parsePath(filename);

    OpenFile file = newOpenFile(path.resource);
    try {
        ArrayList<Integer> bytes = ArrayList<Integer>();
        file.readFully(void (ByteBuffer buffer) {
            for (Integer byte in buffer) {
                bytes.add(byte);
            }
        });
        print(bytes);
    } finally {
        file.close();
    }
}

shared void run(){
    if (nonempty args=process.arguments) {
        for (arg in args) {
            cat(arg);
        }
    }
    else {
        throw IllegalArgumentException();
    }
}