functionalscript/fsc/bnf.f.js

FunctionalScript is a purely functional subset of JavaScript

import { cp, range, remove, set, str } from "../bnf/func/module.f.js";
import { digit, json, unicode, ws0, ws1, wsNoNewLine0 } from "./json.f.js";
export const wsModule = () => [[ws0, module]];
const module = () => [
    [json, ws0],
    [fjs],
];
const fjs = () => [
    [],
    [...str('const'), ws1, id, ws0, cp('='), ws0, json, wsNoNewLine0, fjsTail],
    [...str('export'), ws1, ...str('default'), ws1, json],
];
const fjsTail = () => [
    [],
    [cp('\n'), ws0, fjs],
];
// line comment
const lineItem = () => remove(unicode, [cp('\n')]);
const line = () => [
    [],
    [lineItem, line]
];
const lineComment = () => [
    [cp('/'), commentTail, cp('\n')]
];
const multiLineSkip = () => remove(unicode, [cp('/')]);
const multiLineItem = () => remove(unicode, [cp('*')]);
const multiLine = () => [
    [cp('*'), multiLineTail],
    [multiLineItem, multiLine]
];
const multiLineTail = () => [
    [cp('/')],
    [multiLineSkip, multiLine]
];
const commentTail = () => [
    [cp('/'), lineComment],
    [cp('*'), multiLine],
];
// id
const id = () => [[alpha, idTail0]];
const alpha = () => [
    [range('AZ')],
    [range('az')],
    ...set('_$'),
];
const idTail0 = () => [
    [],
    [alphaDigit, idTail0],
];
const alphaDigit = () => [
    [alpha],
    [digit],
];