Quick script to flip text horizontally (Needed to fix some ASCII art)

mirror-text.js

var fs = require('fs');

var src = process.argv[2],
    out = '',
    text;

if (!src) {
    console.error('Arguments: source_file');
    process.exit(1);
}

if (!fs.existsSync(src)) {
    console.error('Source file not fond');
    process.exit(1);
}

text = fs.readFileSync(src, 'utf8');

text.split('\n').forEach(function (line) {
    for (var i = line.length - 1; i >= 0; i -= 1) {
        out += line[i];
    }

    out += '\n';
});

console.log(out);