UNPKG

luhn-generator

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A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

148 lines (137 loc) 2.81 kB
'use strict'; const escapeStringRegexp = require('escape-string-regexp'); const platform = process.platform; const main = { tick: '✔', cross: '✖', star: '★', square: '▇', squareSmall: '◻', squareSmallFilled: '◼', play: '▶', circle: '◯', circleFilled: '◉', circleDotted: '◌', circleDouble: '◎', circleCircle: 'ⓞ', circleCross: 'ⓧ', circlePipe: 'Ⓘ', circleQuestionMark: '?⃝', bullet: '●', dot: '․', line: '─', ellipsis: '…', pointer: '❯', pointerSmall: '›', info: 'ℹ', warning: '⚠', hamburger: '☰', smiley: '㋡', mustache: '෴', heart: '♥', arrowUp: '↑', arrowDown: '↓', arrowLeft: '←', arrowRight: '→', radioOn: '◉', radioOff: '◯', checkboxOn: '☒', checkboxOff: '☐', checkboxCircleOn: 'ⓧ', checkboxCircleOff: 'Ⓘ', questionMarkPrefix: '?⃝', oneHalf: '½', oneThird: '⅓', oneQuarter: '¼', oneFifth: '⅕', oneSixth: '⅙', oneSeventh: '⅐', oneEighth: '⅛', oneNinth: '⅑', oneTenth: '⅒', twoThirds: '⅔', twoFifths: '⅖', threeQuarters: '¾', threeFifths: '⅗', threeEighths: '⅜', fourFifths: '⅘', fiveSixths: '⅚', fiveEighths: '⅝', sevenEighths: '⅞' }; const win = { tick: '√', cross: '×', star: '*', square: '█', squareSmall: '[ ]', squareSmallFilled: '[█]', play: '►', circle: '( )', circleFilled: '(*)', circleDotted: '( )', circleDouble: '( )', circleCircle: '(○)', circleCross: '(×)', circlePipe: '(│)', circleQuestionMark: '(?)', bullet: '*', dot: '.', line: '─', ellipsis: '...', pointer: '>', pointerSmall: '»', info: 'i', warning: '‼', hamburger: '≡', smiley: '☺', mustache: '┌─┐', heart: main.heart, arrowUp: main.arrowUp, arrowDown: main.arrowDown, arrowLeft: main.arrowLeft, arrowRight: main.arrowRight, radioOn: '(*)', radioOff: '( )', checkboxOn: '[×]', checkboxOff: '[ ]', checkboxCircleOn: '(×)', checkboxCircleOff: '( )', questionMarkPrefix: '?', oneHalf: '1/2', oneThird: '1/3', oneQuarter: '1/4', oneFifth: '1/5', oneSixth: '1/6', oneSeventh: '1/7', oneEighth: '1/8', oneNinth: '1/9', oneTenth: '1/10', twoThirds: '2/3', twoFifths: '2/5', threeQuarters: '3/4', threeFifths: '3/5', threeEighths: '3/8', fourFifths: '4/5', fiveSixths: '5/6', fiveEighths: '5/8', sevenEighths: '7/8' }; if (platform === 'linux') { // the main one doesn't look that good on Ubuntu main.questionMarkPrefix = '?'; } const figures = platform === 'win32' ? win : main; const fn = str => { if (figures === main) { return str; } Object.keys(main).forEach(key => { if (main[key] === figures[key]) { return; } str = str.replace(new RegExp(escapeStringRegexp(main[key]), 'g'), figures[key]); }); return str; }; module.exports = Object.assign(fn, figures);