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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseNumberSkeleton = exports.parseNumberSkeletonFromString = void 0;
var tslib_1 = require("tslib");
var regex_generated_1 = require("./regex.generated");
function parseNumberSkeletonFromString(skeleton) {
if (skeleton.length === 0) {
throw new Error('Number skeleton cannot be empty');
}
// Parse the skeleton
var stringTokens = skeleton
.split(regex_generated_1.WHITE_SPACE_REGEX)
.filter(function (x) { return x.length > 0; });
var tokens = [];
for (var _i = 0, stringTokens_1 = stringTokens; _i < stringTokens_1.length; _i++) {
var stringToken = stringTokens_1[_i];
var stemAndOptions = stringToken.split('/');
if (stemAndOptions.length === 0) {
throw new Error('Invalid number skeleton');
}
var stem = stemAndOptions[0], options = stemAndOptions.slice(1);
for (var _a = 0, options_1 = options; _a < options_1.length; _a++) {
var option = options_1[_a];
if (option.length === 0) {
throw new Error('Invalid number skeleton');
}
}
tokens.push({ stem: stem, options: options });
}
return tokens;
}
exports.parseNumberSkeletonFromString = parseNumberSkeletonFromString;
function icuUnitToEcma(unit) {
return unit.replace(/^(.*?)-/, '');
}
var FRACTION_PRECISION_REGEX = /^\.(?:(0+)(\*)?|(#+)|(0+)(#+))$/g;
var SIGNIFICANT_PRECISION_REGEX = /^(@+)?(\+|#+)?[rs]?$/g;
var INTEGER_WIDTH_REGEX = /(\*)(0+)|(#+)(0+)|(0+)/g;
var CONCISE_INTEGER_WIDTH_REGEX = /^(0+)$/;
function parseSignificantPrecision(str) {
var result = {};
if (str[str.length - 1] === 'r') {
result.roundingPriority = 'morePrecision';
}
else if (str[str.length - 1] === 's') {
result.roundingPriority = 'lessPrecision';
}
str.replace(SIGNIFICANT_PRECISION_REGEX, function (_, g1, g2) {
// @@@ case
if (typeof g2 !== 'string') {
result.minimumSignificantDigits = g1.length;
result.maximumSignificantDigits = g1.length;
}
// @@@+ case
else if (g2 === '+') {
result.minimumSignificantDigits = g1.length;
}
// .### case
else if (g1[0] === '#') {
result.maximumSignificantDigits = g1.length;
}
// .@@## or .@@@ case
else {
result.minimumSignificantDigits = g1.length;
result.maximumSignificantDigits =
g1.length + (typeof g2 === 'string' ? g2.length : 0);
}
return '';
});
return result;
}
function parseSign(str) {
switch (str) {
case 'sign-auto':
return {
signDisplay: 'auto',
};
case 'sign-accounting':
case '()':
return {
currencySign: 'accounting',
};
case 'sign-always':
case '+!':
return {
signDisplay: 'always',
};
case 'sign-accounting-always':
case '()!':
return {
signDisplay: 'always',
currencySign: 'accounting',
};
case 'sign-except-zero':
case '+?':
return {
signDisplay: 'exceptZero',
};
case 'sign-accounting-except-zero':
case '()?':
return {
signDisplay: 'exceptZero',
currencySign: 'accounting',
};
case 'sign-never':
case '+_':
return {
signDisplay: 'never',
};
}
}
function parseConciseScientificAndEngineeringStem(stem) {
// Engineering
var result;
if (stem[0] === 'E' && stem[1] === 'E') {
result = {
notation: 'engineering',
};
stem = stem.slice(2);
}
else if (stem[0] === 'E') {
result = {
notation: 'scientific',
};
stem = stem.slice(1);
}
if (result) {
var signDisplay = stem.slice(0, 2);
if (signDisplay === '+!') {
result.signDisplay = 'always';
stem = stem.slice(2);
}
else if (signDisplay === '+?') {
result.signDisplay = 'exceptZero';
stem = stem.slice(2);
}
if (!CONCISE_INTEGER_WIDTH_REGEX.test(stem)) {
throw new Error('Malformed concise eng/scientific notation');
}
result.minimumIntegerDigits = stem.length;
}
return result;
}
function parseNotationOptions(opt) {
var result = {};
var signOpts = parseSign(opt);
if (signOpts) {
return signOpts;
}
return result;
}
/**
* https://github.com/unicode-org/icu/blob/master/docs/userguide/format_parse/numbers/skeletons.md#skeleton-stems-and-options
*/
function parseNumberSkeleton(tokens) {
var result = {};
for (var _i = 0, tokens_1 = tokens; _i < tokens_1.length; _i++) {
var token = tokens_1[_i];
switch (token.stem) {
case 'percent':
case '%':
result.style = 'percent';
continue;
case '%x100':
result.style = 'percent';
result.scale = 100;
continue;
case 'currency':
result.style = 'currency';
result.currency = token.options[0];
continue;
case 'group-off':
case ',_':
result.useGrouping = false;
continue;
case 'precision-integer':
case '.':
result.maximumFractionDigits = 0;
continue;
case 'measure-unit':
case 'unit':
result.style = 'unit';
result.unit = icuUnitToEcma(token.options[0]);
continue;
case 'compact-short':
case 'K':
result.notation = 'compact';
result.compactDisplay = 'short';
continue;
case 'compact-long':
case 'KK':
result.notation = 'compact';
result.compactDisplay = 'long';
continue;
case 'scientific':
result = (0, tslib_1.__assign)((0, tslib_1.__assign)((0, tslib_1.__assign)({}, result), { notation: 'scientific' }), token.options.reduce(function (all, opt) { return ((0, tslib_1.__assign)((0, tslib_1.__assign)({}, all), parseNotationOptions(opt))); }, {}));
continue;
case 'engineering':
result = (0, tslib_1.__assign)((0, tslib_1.__assign)((0, tslib_1.__assign)({}, result), { notation: 'engineering' }), token.options.reduce(function (all, opt) { return ((0, tslib_1.__assign)((0, tslib_1.__assign)({}, all), parseNotationOptions(opt))); }, {}));
continue;
case 'notation-simple':
result.notation = 'standard';
continue;
// https://github.com/unicode-org/icu/blob/master/icu4c/source/i18n/unicode/unumberformatter.h
case 'unit-width-narrow':
result.currencyDisplay = 'narrowSymbol';
result.unitDisplay = 'narrow';
continue;
case 'unit-width-short':
result.currencyDisplay = 'code';
result.unitDisplay = 'short';
continue;
case 'unit-width-full-name':
result.currencyDisplay = 'name';
result.unitDisplay = 'long';
continue;
case 'unit-width-iso-code':
result.currencyDisplay = 'symbol';
continue;
case 'scale':
result.scale = parseFloat(token.options[0]);
continue;
// https://unicode-org.github.io/icu/userguide/format_parse/numbers/skeletons.html#integer-width
case 'integer-width':
if (token.options.length > 1) {
throw new RangeError('integer-width stems only accept a single optional option');
}
token.options[0].replace(INTEGER_WIDTH_REGEX, function (_, g1, g2, g3, g4, g5) {
if (g1) {
result.minimumIntegerDigits = g2.length;
}
else if (g3 && g4) {
throw new Error('We currently do not support maximum integer digits');
}
else if (g5) {
throw new Error('We currently do not support exact integer digits');
}
return '';
});
continue;
}
// https://unicode-org.github.io/icu/userguide/format_parse/numbers/skeletons.html#integer-width
if (CONCISE_INTEGER_WIDTH_REGEX.test(token.stem)) {
result.minimumIntegerDigits = token.stem.length;
continue;
}
if (FRACTION_PRECISION_REGEX.test(token.stem)) {
// Precision
// https://unicode-org.github.io/icu/userguide/format_parse/numbers/skeletons.html#fraction-precision
// precision-integer case
if (token.options.length > 1) {
throw new RangeError('Fraction-precision stems only accept a single optional option');
}
token.stem.replace(FRACTION_PRECISION_REGEX, function (_, g1, g2, g3, g4, g5) {
// .000* case (before ICU67 it was .000+)
if (g2 === '*') {
result.minimumFractionDigits = g1.length;
}
// .### case
else if (g3 && g3[0] === '#') {
result.maximumFractionDigits = g3.length;
}
// .00## case
else if (g4 && g5) {
result.minimumFractionDigits = g4.length;
result.maximumFractionDigits = g4.length + g5.length;
}
else {
result.minimumFractionDigits = g1.length;
result.maximumFractionDigits = g1.length;
}
return '';
});
var opt = token.options[0];
// https://unicode-org.github.io/icu/userguide/format_parse/numbers/skeletons.html#trailing-zero-display
if (opt === 'w') {
result = (0, tslib_1.__assign)((0, tslib_1.__assign)({}, result), { trailingZeroDisplay: 'stripIfInteger' });
}
else if (opt) {
result = (0, tslib_1.__assign)((0, tslib_1.__assign)({}, result), parseSignificantPrecision(opt));
}
continue;
}
// https://unicode-org.github.io/icu/userguide/format_parse/numbers/skeletons.html#significant-digits-precision
if (SIGNIFICANT_PRECISION_REGEX.test(token.stem)) {
result = (0, tslib_1.__assign)((0, tslib_1.__assign)({}, result), parseSignificantPrecision(token.stem));
continue;
}
var signOpts = parseSign(token.stem);
if (signOpts) {
result = (0, tslib_1.__assign)((0, tslib_1.__assign)({}, result), signOpts);
}
var conciseScientificAndEngineeringOpts = parseConciseScientificAndEngineeringStem(token.stem);
if (conciseScientificAndEngineeringOpts) {
result = (0, tslib_1.__assign)((0, tslib_1.__assign)({}, result), conciseScientificAndEngineeringOpts);
}
}
return result;
}
exports.parseNumberSkeleton = parseNumberSkeleton;
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