@cute-dw/core
Version:
This TypeScript library is the main part of a more powerfull package designed for the fast WEB software development. The cornerstone of the library is the **DataStore** class, which might be useful when you need a full control of the data, but do not need
182 lines • 26.9 kB
JavaScript
import { Strings } from "../../Strings";
import { Locale } from "../Locale";
import { NumberSpellerDictionary } from "./NumberSpellerDictionary";
/**
* This utility class consists exclusively of the static methods that operate on numeric values with localization taking into account
* @since 0.4.0
* @license MIT, (c) 2022 ALEXANDER STRELKOV, alv.strelkov@gmail.com
*/
export class NumberSpeller {
/**
*
* @param amount
* @param thousandGroup
* @param words
* @param options
* @returns
*/
static _digitGroup(amount, thousandGroup, words, options) {
let res = "";
let nBase = 1000000000000000.00, v = 0, srcAmount = amount;
for (let nGrp = 1; nGrp <= 5; nGrp++) {
v = Math.trunc(amount / nBase);
if (v > 0) {
amount -= Math.trunc(v * nBase);
res += this._digitGroup(v, nGrp, words, options);
if (amount > 0) {
res += words.texts.delim1000 || "";
}
res += " ";
}
nBase = Math.trunc(nBase / 1000);
}
// hundreds
v = Math.trunc(amount / 100);
if (v > 0) {
amount -= Math.trunc(v * 100);
if (words.hundreds.length == 1) {
res += (words.ones[v] + " " + words.hundreds[0] + " ");
}
else {
res += (words.hundreds[v - 1] + " ");
}
}
// tens
let fractions = "";
v = Math.trunc(amount / 10);
if (v > 0) {
amount -= Math.trunc(v * 10);
if (v == 1 && amount > 0) {
// 11-19
fractions += (words.teens[amount - 1] + " ");
amount = 0;
}
else {
fractions += words.tens[v - 1];
if (v > 1 && amount > 0 && words.texts.tenSplitter) {
fractions += words.texts.tenSplitter;
}
else {
fractions += " ";
}
}
}
// units
let item;
let more = "";
let pointWord = "";
let useExacts = true;
let currOptions = undefined;
if (thousandGroup !== undefined) {
item = words.groups[thousandGroup].find(obj => obj.values === undefined || obj.values.indexOf(amount) >= 0);
}
else if (options.currency) {
currOptions = words.currency[options.currency];
if (currOptions) {
useExacts = currOptions.useExacts ?? true;
if (options.isFraction) {
item = currOptions.parts?.fraction.find(obj => obj.values === undefined || obj.values.indexOf(amount) >= 0);
pointWord = Strings.trimAll(currOptions.point) || "";
pointWord = (pointWord != "" ? pointWord + " " : "");
}
else {
item = currOptions.parts?.integer.find(obj => obj.values === undefined || obj.values.indexOf(amount) >= 0);
}
}
}
if (item) {
more = item.word;
}
if (amount > 0) {
let word = words.ones[amount];
if (useExacts && words.exactWordsMapping && (options.isFraction || thousandGroup == 5)) {
word = words.exactWordsMapping[amount] ?? word;
}
fractions += word;
}
else if (srcAmount == 0) {
fractions += words.ones[0];
}
return (res + pointWord + (options.isFraction && options.fractionAsNumber ? Strings.right("0" + String(srcAmount), 2) : fractions)).trimEnd() + " " + more;
}
/**
* Converts an integer value in words
* @param value A number to convert
* @param options An object containing certain properties and their values
* @returns String
* @static
*/
static spellInteger(value, options) {
const oLocale = options?.locale instanceof Locale ? options.locale : new Locale(options?.locale);
const words = NumberSpellerDictionary.get(oLocale.baseName);
if (!words) {
return String(value);
}
if (!Number.isFinite(value)) {
return String(value);
}
let signWord = "";
if (value < 0) {
value = Math.abs(value);
signWord = words.texts?.minus ?? "-";
}
return signWord + this._digitGroup(Math.trunc(value), undefined, words, {}).trimEnd();
}
/**
* Converts amount of money in words
* @param value Sum to convert
* @param options Configuration object
* @returns String
* @throws Error if the _locale_ value is invalid in `options`
* @static
*/
static spellCurrency(value, options) {
const oLocale = options?.locale instanceof Locale ? options.locale : new Locale(options?.locale);
const words = NumberSpellerDictionary.get(oLocale.baseName);
if (!words) {
throw new TypeError(`Unknown locale: ${oLocale.baseName}`);
}
let currency = options?.currency ?? "";
if (currency.trim() == "" && Object.keys(words.currency).length > 0) {
currency = Object.keys(words.currency)[0];
}
if (!words.currency[currency]) {
throw new TypeError(`Unknown currency '${currency}' in locale '${oLocale.baseName}'`);
}
if (!Number.isFinite(value)) {
throw new RangeError(`Invalid value: ${value}`);
}
let signWord = "";
if (value < 0) {
value = Math.abs(value);
signWord = (words.texts?.minus ?? "-") + " ";
}
const intPart = Math.trunc(value);
const decPart = Math.round((value - intPart) * 100);
let sVal = signWord + this._digitGroup(intPart, undefined, words, { currency, isFraction: false });
if (sVal != "") {
sVal += " ";
}
return sVal + (decPart == 0 && words.currency[currency].only
? words.currency[currency].only
: this._digitGroup(decPart, undefined, words, { currency, isFraction: true, fractionAsNumber: options?.fractionAsNumber ?? true }));
}
/**
* Gets the result of the specified _unit_ formatting
* @param value A value in units
* @param unit Required value in unit formatting. Possible values are [core unit identifiers](https://tc39.es/proposal-unified-intl-numberformat/section6/locales-currencies-tz_proposed_out.html#sec-issanctionedsimpleunitidentifier) that was selected for use in ECMAScript. Pairs of simple units can be concatenated with "-per-" to make a compound unit.
* @param options Configuration object
* @returns String
* @throws Error if the _locale_ value is invalid in `options`
* @static
*/
static spellUnit(value, unit, options) {
const oLocale = options?.locale instanceof Locale ? options.locale : new Locale(options?.locale);
let output = (new Intl.NumberFormat(oLocale.baseName, { style: "unit", unit, unitDisplay: options?.unitDisplay ?? "long" })).format(value);
if (!(options?.valueAsNumber ?? false) && Number.isInteger(value)) {
output = NumberSpeller.spellInteger(value, { locale: options?.locale }) + " " + Strings.getLastToken(output, " ")[0];
}
return output;
}
}
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{ Strings } from \"../../Strings\";\nimport { Locale } from \"../Locale\";\nimport { CurrencyOptions, DigitalWordsConfig, NumberSpellerDictionary } from \"./NumberSpellerDictionary\";\n/**\n * This utility class consists exclusively of the static methods that operate on numeric values with localization taking into account\n * @since 0.4.0\n * @license MIT, (c) 2022 ALEXANDER STRELKOV, alv.strelkov@gmail.com\n */\nexport class NumberSpeller {\n  /**\n   *\n   * @param amount\n   * @param thousandGroup\n   * @param words\n   * @param options\n   * @returns\n   */\n  private static _digitGroup(amount: number, thousandGroup: number | undefined, words: Readonly<DigitalWordsConfig>, options: { currency?: string, isFraction?: boolean, fractionAsNumber?: boolean }): string {\n    let res = \"\";\n    let nBase = 1000000000000000.00, v = 0, srcAmount = amount;\n\n    for (let nGrp = 1; nGrp <= 5; nGrp++) {\n      v = Math.trunc(amount / nBase);\n      if (v > 0) {\n        amount -= Math.trunc(v * nBase);\n        res += this._digitGroup(v, nGrp, words, options);\n        if (amount > 0) {\n          res += words.texts.delim1000 || \"\";\n        }\n        res += \" \";\n      }\n      nBase = Math.trunc(nBase / 1000);\n    }\n    // hundreds\n    v = Math.trunc(amount / 100);\n    if (v > 0) {\n      amount -= Math.trunc(v * 100);\n      if (words.hundreds.length == 1) {\n        res += (words.ones[v] + \" \" + words.hundreds[0] + \" \");\n      } else {\n        res += (words.hundreds[v - 1] + \" \");\n      }\n    }\n    // tens\n    let fractions = \"\";\n    v = Math.trunc(amount / 10);\n    if (v > 0) {\n      amount -= Math.trunc(v * 10);\n      if (v == 1 && amount > 0) {\n        // 11-19\n        fractions += (words.teens[amount - 1] + \" \");\n        amount = 0;\n      } else {\n        fractions += words.tens[v - 1];\n        if (v > 1 && amount > 0 && words.texts.tenSplitter) {\n          fractions += words.texts.tenSplitter;\n        } else {\n          fractions += \" \";\n        }\n      }\n    }\n    // units\n    let item;\n    let more = \"\";\n    let pointWord = \"\";\n    let useExacts = true;\n    let currOptions: CurrencyOptions | undefined = undefined;\n    if (thousandGroup !== undefined) {\n      item = words.groups[thousandGroup].find(obj => obj.values === undefined || obj.values.indexOf(amount) >= 0);\n    } else if (options.currency) {\n      currOptions = words.currency[options.currency];\n      if (currOptions) {\n        useExacts = currOptions.useExacts ?? true;\n        if (options.isFraction) {\n          item = currOptions.parts?.fraction.find(obj => obj.values === undefined || obj.values.indexOf(amount) >= 0);\n          pointWord = Strings.trimAll(currOptions.point) || \"\";\n          pointWord = (pointWord != \"\" ? pointWord + \" \" : \"\");\n        } else {\n          item = currOptions.parts?.integer.find(obj => obj.values === undefined || obj.values.indexOf(amount) >= 0);\n        }\n      }\n    }\n    if (item) {\n      more = item.word;\n    }\n\n    if (amount > 0) {\n      let word = words.ones[amount];\n      if (useExacts && words.exactWordsMapping && (options.isFraction || thousandGroup == 5)) {\n        word = words.exactWordsMapping[amount] ?? word;\n      }\n      fractions += word;\n    } else if (srcAmount == 0) {\n      fractions += words.ones[0];\n    }\n\n    return (res + pointWord + (options.isFraction && options.fractionAsNumber ? Strings.right(\"0\" + String(srcAmount), 2) : fractions)).trimEnd() + \" \" + more;\n  }\n  /**\n   * Converts an integer value in words\n   * @param value A number to convert\n   * @param options An object containing certain properties and their values\n   * @returns String\n   * @static\n   */\n  static spellInteger(value: number, options?: { locale?: string | Locale }): string {\n    const oLocale = options?.locale instanceof Locale ? options.locale : new Locale(options?.locale);\n\n    const words = NumberSpellerDictionary.get(oLocale.baseName!);\n    if (!words) {\n      return String(value);\n    }\n    if (!Number.isFinite(value)) {\n      return String(value);\n    }\n    let signWord = \"\";\n    if (value < 0) {\n      value = Math.abs(value);\n      signWord = words.texts?.minus ?? \"-\";\n    }\n\n    return signWord + this._digitGroup(Math.trunc(value), undefined, words, {}).trimEnd();\n  }\n  /**\n   * Converts amount of money in words\n   * @param value  Sum to convert\n   * @param options Configuration object\n   * @returns String\n   * @throws Error if the _locale_ value is invalid in `options`\n   * @static\n   */\n  static spellCurrency(value: number, options?: { currency?: string, locale?: string | Locale, fractionAsNumber?: boolean }): string {\n    const oLocale = options?.locale instanceof Locale ? options.locale : new Locale(options?.locale);\n    const words = NumberSpellerDictionary.get(oLocale.baseName!);\n\n    if (!words) {\n      throw new TypeError(`Unknown locale: ${oLocale.baseName}`);\n    }\n\n    let currency = options?.currency ?? \"\";\n    if (currency.trim() == \"\" && Object.keys(words.currency).length > 0) {\n      currency = Object.keys(words.currency)[0];\n    }\n\n    if (!words.currency[currency]) {\n      throw new TypeError(`Unknown currency '${currency}' in locale '${oLocale.baseName}'`);\n    }\n    if (!Number.isFinite(value)) {\n      throw new RangeError(`Invalid value: ${value}`);\n    }\n\n    let signWord = \"\";\n    if (value < 0) {\n      value = Math.abs(value);\n      signWord = (words.texts?.minus ?? \"-\") + \" \";\n    }\n\n    const intPart = Math.trunc(value);\n    const decPart = Math.round((value - intPart) * 100);\n\n    let sVal = signWord + this._digitGroup(intPart, undefined, words, { currency, isFraction: false });\n    if (sVal != \"\") {\n      sVal += \" \";\n    }\n    return sVal + (decPart == 0 && words.currency[currency].only\n                      ? words.currency[currency].only\n                      : this._digitGroup(decPart, undefined, words,\n                                    { currency, isFraction: true, fractionAsNumber: options?.fractionAsNumber ?? true }\n                        )\n                  );\n  }\n  /**\n   * Gets the result of the specified _unit_ formatting\n   * @param value A value in units\n   * @param unit Required value in unit formatting. Possible values are [core unit identifiers](https://tc39.es/proposal-unified-intl-numberformat/section6/locales-currencies-tz_proposed_out.html#sec-issanctionedsimpleunitidentifier) that was selected for use in ECMAScript. Pairs of simple units can be concatenated with \"-per-\" to make a compound unit.\n   * @param options Configuration object\n   * @returns String\n   * @throws Error if the _locale_ value is invalid in `options`\n   * @static\n   */\n  static spellUnit(value: number, unit: string, options?: { locale?: string | Locale, unitDisplay?: \"long\"|\"short\"|\"narrow\", valueAsNumber?: boolean}): string {\n    const oLocale = options?.locale instanceof Locale ? options.locale : new Locale(options?.locale);\n    let output = (new Intl.NumberFormat(oLocale.baseName, {style: \"unit\", unit, unitDisplay: options?.unitDisplay ?? \"long\"})).format(value);\n    if ( !(options?.valueAsNumber??false) && Number.isInteger(value) ) {\n      output = NumberSpeller.spellInteger(value, {locale: options?.locale}) + \" \"+ Strings.getLastToken(output, \" \")[0];\n    }\n    return output;\n  }\n\n}\n"]}