radish/build/util/argv.js

Radish is a React-based static site generator that outputs plain HTML and CSS.

export default function argv(argv) {
    const result = { _: [] };
    let positional = false;
    let currentKey = "";
    for (const arg of argv) {
        if (positional) {
            result._.push(parse(arg));
            continue;
        }
        if (arg.startsWith("-")) {
            if (currentKey)
                result[currentKey] = true;
            const [key, value] = arg.replace(/^-+/, "").split(/=(.*)/);
            if (!key) {
                if (currentKey)
                    result[currentKey] = true;
                positional = true;
                currentKey = "";
                continue;
            }
            if (!value) {
                currentKey = key;
                continue;
            }
            result[key] = value;
            currentKey = "";
            continue;
        }
        if (currentKey) {
            result[currentKey] = parse(arg);
            currentKey = "";
            continue;
        }
        result._.push(parse(arg));
    }
    if (currentKey)
        result[currentKey] = true;
    return result;
}
function parse(arg) {
    const num = Number(arg);
    if (!isNaN(num))
        return num;
    if (arg === "true")
        return true;
    if (arg === "false")
        return false;
    return arg;
}