247 lines
6.6 KiB
JavaScript
247 lines
6.6 KiB
JavaScript
'use strict';
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var ABBR = {
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th: 3,
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mi: 6,
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bi: 9,
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tr: 12
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};
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var DEFAULT_OPTIONS = {
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zeroFormat: null,
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nullFormat: null,
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defaultFormat: '0,0',
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scalePercentBy100: true,
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abbrLabel: {
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th: 'k',
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mi: 'm',
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bi: 'b',
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tr: 't'
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}
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};
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var TRILLION = 1e12;
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var BILLION = 1e9;
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var MILLION = 1e6;
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var THOUSAND = 1e3;
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function numIsNaN(value) {
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return typeof value === 'number' && isNaN(value);
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}
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function toFixed(value, maxDecimals, roundingFunction, optionals) {
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var splitValue = value.toString().split('.');
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var minDecimals = maxDecimals - (optionals || 0);
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var boundedPrecision = splitValue.length === 2 ? Math.min(Math.max(splitValue[1].length, minDecimals), maxDecimals) : minDecimals;
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var power = Math.pow(10, boundedPrecision);
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var output = (roundingFunction(value + 'e+' + boundedPrecision) / power).toFixed(boundedPrecision);
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if (optionals > maxDecimals - boundedPrecision) {
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var optionalsRegExp = new RegExp('\\.?0{1,' + (optionals - (maxDecimals - boundedPrecision)) + '}$');
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output = output.replace(optionalsRegExp, '');
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}
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return output;
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}
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function numberToFormat(options, value, format, roundingFunction) {
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var abs = Math.abs(value);
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var negP = false;
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var optDec = false;
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var abbr = '';
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var decimal = '';
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var neg = false;
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var abbrForce = void 0;
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var signed = void 0;
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format = format || '';
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value = value || 0;
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if (~format.indexOf('(')) {
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negP = true;
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format = format.replace(/[(|)]/g, '');
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} else if (~format.indexOf('+') || ~format.indexOf('-')) {
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signed = ~format.indexOf('+') ? format.indexOf('+') : value < 0 ? format.indexOf('-') : -1;
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format = format.replace(/[+|-]/g, '');
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}
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if (~format.indexOf('a')) {
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abbrForce = format.match(/a(k|m|b|t)?/);
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abbrForce = abbrForce ? abbrForce[1] : false;
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if (~format.indexOf(' a')) abbr = ' ';
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format = format.replace(new RegExp(abbr + 'a[kmbt]?'), '');
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if (abs >= TRILLION && !abbrForce || abbrForce === 't') {
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abbr += options.abbrLabel.tr;
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value = value / TRILLION;
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} else if (abs < TRILLION && abs >= BILLION && !abbrForce || abbrForce === 'b') {
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abbr += options.abbrLabel.bi;
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value = value / BILLION;
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} else if (abs < BILLION && abs >= MILLION && !abbrForce || abbrForce === 'm') {
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abbr += options.abbrLabel.mi;
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value = value / MILLION;
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} else if (abs < MILLION && abs >= THOUSAND && !abbrForce || abbrForce === 'k') {
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abbr += options.abbrLabel.th;
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value = value / THOUSAND;
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}
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}
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if (~format.indexOf('[.]')) {
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optDec = true;
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format = format.replace('[.]', '.');
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}
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var int = value.toString().split('.')[0];
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var precision = format.split('.')[1];
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var thousands = format.indexOf(',');
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var leadingCount = (format.split('.')[0].split(',')[0].match(/0/g) || []).length;
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if (precision) {
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if (~precision.indexOf('[')) {
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precision = precision.replace(']', '');
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precision = precision.split('[');
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decimal = toFixed(value, precision[0].length + precision[1].length, roundingFunction, precision[1].length);
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} else {
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decimal = toFixed(value, precision.length, roundingFunction);
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}
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int = decimal.split('.')[0];
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decimal = ~decimal.indexOf('.') ? '.' + decimal.split('.')[1] : '';
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if (optDec && +decimal.slice(1) === 0) decimal = '';
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} else {
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int = toFixed(value, 0, roundingFunction);
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}
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if (abbr && !abbrForce && +int >= 1000 && abbr !== ABBR.trillion) {
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int = '' + +int / 1000;
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abbr = ABBR.million;
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}
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if (~int.indexOf('-')) {
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int = int.slice(1);
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neg = true;
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}
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if (int.length < leadingCount) {
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for (var i = leadingCount - int.length; i > 0; i--) {
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int = '0' + int;
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}
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}
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if (thousands > -1) {
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int = int.toString().replace(/(\d)(?=(\d{3})+(?!\d))/g, '$1' + ',');
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}
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if (!format.indexOf('.')) int = '';
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var output = int + decimal + (abbr || '');
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if (negP) {
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output = (negP && neg ? '(' : '') + output + (negP && neg ? ')' : '');
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} else {
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if (signed >= 0) {
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output = signed === 0 ? (neg ? '-' : '+') + output : output + (neg ? '-' : '+');
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} else if (neg) {
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output = '-' + output;
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}
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}
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return output;
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}
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function extend(target, sub) {
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Object.keys(sub).forEach(function (key) {
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target[key] = sub[key];
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});
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}
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var numerifyPercent = {
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regexp: /%/,
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format: function format(value, formatType, roundingFunction, numerify) {
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var space = ~formatType.indexOf(' %') ? ' ' : '';
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var output = void 0;
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if (numerify.options.scalePercentBy100) value = value * 100;
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formatType = formatType.replace(/\s?%/, '');
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output = numerify._numberToFormat(value, formatType, roundingFunction);
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if (~output.indexOf(')')) {
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output = output.split('');
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output.splice(-1, 0, space + '%');
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output = output.join('');
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} else {
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output = output + space + '%';
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}
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return output;
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}
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};
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var options = {};
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var formats = {};
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extend(options, DEFAULT_OPTIONS);
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function format(value, formatType, roundingFunction) {
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formatType = formatType || options.defaultFormat;
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roundingFunction = roundingFunction || Math.round;
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var output = void 0;
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var formatFunction = void 0;
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if (value === 0 && options.zeroFormat !== null) {
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output = options.zeroFormat;
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} else if (value === null && options.nullFormat !== null) {
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output = options.nullFormat;
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} else {
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for (var kind in formats) {
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if (formats[kind] && formatType.match(formats[kind].regexp)) {
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formatFunction = formats[kind].format;
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break;
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}
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}
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formatFunction = formatFunction || numberToFormat.bind(null, options);
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output = formatFunction(value, formatType, roundingFunction, numerify);
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}
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return output;
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}
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function numerify(input, formatType, roundingFunction) {
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var value = void 0;
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if (input === 0 || typeof input === 'undefined') {
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value = 0;
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} else if (input === null || numIsNaN(input)) {
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value = null;
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} else if (typeof input === 'string') {
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if (options.zeroFormat && input === options.zeroFormat) {
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value = 0;
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} else if (options.nullFormat && input === options.nullFormat || !input.replace(/[^0-9]+/g, '').length) {
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value = null;
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} else {
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value = +input;
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}
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} else {
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value = +input || null;
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}
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return format(value, formatType, roundingFunction);
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}
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numerify.options = options;
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numerify._numberToFormat = numberToFormat.bind(null, options);
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numerify.register = function (name, format) {
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formats[name] = format;
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};
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numerify.unregister = function (name) {
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formats[name] = null;
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};
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numerify.setOptions = function (opts) {
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extend(options, opts);
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};
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numerify.reset = function () {
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extend(options, DEFAULT_OPTIONS);
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};
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numerify.register('percentage', numerifyPercent);
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module.exports = numerify;
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