extra-path/index.mjs

Useful additions to inbuilt path module.

import { basename, extname } from 'path';
export { basename, delimiter, dirname, extname, format, isAbsolute, join, normalize, parse, posix, relative, resolve, sep, toNamespacedPath, win32 } from 'path';

function IDENTITY(v) {
    return v;
}
function toKebabCase(x, re = null, sep = "-") {
    var words = x.split(re || /[^0-9A-Za-z]+/g).filter(IDENTITY);
    for (var i = 0, I = words.length; i < I; ++i) {
        words[i] = words[i].replace(/[A-Z]+/g, m => m.length === 1 ? sep + m : sep + m.slice(0, -1) + sep + m.slice(-1));
        if (words[i].startsWith(sep))
            words[i] = words[i].slice(sep.length);
    }
    return words.join(sep).toLowerCase();
}

function filename(pth) {
    return basename(pth, extname(pth));
}
function symbolname(pth) {
    return filename(pth).replace(/[^\w$]+/g, "_");
}
function keywordname(pth) {
    return toKebabCase(filename(pth));
}

export { filename, keywordname, symbolname };