mhtml-stream/dist/headers.js

Zero dependency stream MHTML parser

export class Headers {
    #raw = new Map();
    [Symbol.iterator]() {
        return this.entries();
    }
    append(key, value) {
        const list = this.#raw.get(key);
        if (list === undefined) {
            this.#raw.set(key, [value]);
        }
        else {
            list.push(value);
        }
    }
    *entries(delim = ", ") {
        for (const [key, values] of this.#raw.entries()) {
            yield [key, values.join(delim)];
        }
    }
    *entriesAll() {
        for (const [key, values] of this.#raw.entries()) {
            for (const val of values) {
                yield [key, val];
            }
        }
    }
    get(key, delim = ", ") {
        const vals = this.#raw.get(key);
        if (vals === undefined) {
            return null;
        }
        else {
            return vals.join(delim);
        }
    }
    getAll(key) {
        return this.#raw.get(key) ?? [];
    }
    has(key) {
        return this.#raw.has(key);
    }
    keys() {
        return this.#raw.keys();
    }
    *values(delim = ", ") {
        for (const vals of this.#raw.values()) {
            yield vals.join(delim);
        }
    }
    *valuesAll() {
        for (const vals of this.#raw.values()) {
            yield* vals;
        }
    }
}