util-helpers/lib/numberToChinese.js

一个基于业务场景的工具方法库

'use strict';

var ut2 = require('ut2');
var math_util = require('./utils/math.util.js');
var devWarn = require('./utils/devWarn.js');

var chnNumberChar = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九'];
var chnUnitChar = ['', '十', '百', '千'];
var big5NumberChar = ['零', '壹', '贰', '叁', '肆', '伍', '陆', '柒', '捌', '玖'];
var big5UnitChar = ['', '拾', '佰', '仟'];
var numberChar;
var unitChar;
var unitSection;
function sectionToChinese(section) {
    var str = '';
    var chnstr = '';
    var zero = false;
    var unitPos = 0;
    while (section > 0) {
        var v = section % 10;
        if (v == 0) {
            if (zero) {
                zero = false;
                chnstr = numberChar[v] + chnstr;
            }
        }
        else {
            zero = true;
            str = numberChar[v];
            str += unitChar[unitPos];
            chnstr = str + chnstr;
        }
        unitPos++;
        section = Math.floor(section / 10);
    }
    return chnstr;
}
function convertInteger(num) {
    var numInt = Math.floor(num);
    var unitPos = 0;
    var strIns = '';
    var chnStr = '';
    var needZero = false;
    if (numInt === 0) {
        return numberChar[0];
    }
    while (numInt > 0) {
        var section = numInt % 10000;
        if (needZero) {
            chnStr = numberChar[0] + chnStr;
        }
        strIns = sectionToChinese(section);
        strIns += section !== 0 ? unitSection[unitPos] : unitSection[0];
        chnStr = strIns + chnStr;
        needZero = section < 1000 && section > 0;
        numInt = Math.floor(numInt / 10000);
        unitPos++;
    }
    return chnStr;
}
function convertDecimal(num) {
    var strNum = num + '';
    var index = strNum.indexOf('.');
    var ret = '';
    if (index > -1) {
        var decimalStr = strNum.slice(index + 1);
        ret = mapNumberChar(decimalStr);
    }
    return ret;
}
function mapNumberChar(num) {
    var strNum = num + '';
    var ret = '';
    for (var i = 0, len = strNum.length; i < len; i++) {
        ret += numberChar[parseInt(strNum[i])];
    }
    return ret;
}
function numberToChinese(num, options) {
    if (options === void 0) { options = {}; }
    var _a = options.big5, big5 = _a === void 0 ? false : _a, _b = options.unit, unit = _b === void 0 ? true : _b, _c = options.zero, zero = _c === void 0 ? '' : _c, _d = options.negative, negative = _d === void 0 ? '负' : _d, _e = options.unitConfig, unitConfig = _e === void 0 ? {} : _e;
    var _f = options.decimal, decimal = _f === void 0 ? '' : _f;
    if (typeof num !== 'number' || ut2.isNaN(num)) {
        devWarn("\u53C2\u6570\u9519\u8BEF ".concat(num, "\uFF0C\u8BF7\u4F20\u5165\u6570\u5B57"));
        return '';
    }
    math_util.checkBoundary(num);
    if (big5) {
        numberChar = big5NumberChar.slice();
        unitChar = big5UnitChar.slice();
        decimal = decimal || '點';
    }
    else {
        numberChar = chnNumberChar.slice();
        unitChar = chnUnitChar.slice();
        decimal = decimal || '点';
    }
    var unitWan = unitConfig.w || '万';
    var unitYi = unitConfig.y || '亿';
    var unitWanYi = unitWan + unitYi;
    unitSection = ['', unitWan, unitYi, unitWanYi];
    if (zero) {
        numberChar[0] = zero;
    }
    var preStr = num < 0 ? negative : '';
    var chnInteger;
    var numAbs = Math.abs(num);
    if (unit) {
        chnInteger = convertInteger(numAbs);
    }
    else {
        chnInteger = mapNumberChar(Math.floor(numAbs));
    }
    var chnDecimal = convertDecimal(numAbs);
    return chnDecimal ? "".concat(preStr).concat(chnInteger).concat(decimal).concat(chnDecimal) : "".concat(preStr).concat(chnInteger);
}

module.exports = numberToChinese;