jtc-utils/cjs/lib/JapaneseEra.cjs

Utilities for Japanese Traditional Companies

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.JapaneseEra = void 0;
const date_fns_1 = require("date-fns");
const escapeRegExp_cjs_1 = require("./util/escapeRegExp.cjs");
const getLocale_cjs_1 = require("./util/getLocale.cjs");
class JapaneseEra {
    name;
    localeNames;
    start;
    end;
    static MEIJI = new JapaneseEra("MEIJI", {
        ja: { long: "明治", short: "明", narrow: "M" },
        en: { long: "Meiji", short: "Mei", narrow: "M" },
    }, (0, date_fns_1.parseISO)("1868-10-23T00:00:00+09:00"), (0, date_fns_1.parseISO)("1912-07-30T00:00:00+09:00"));
    static TAISHO = new JapaneseEra("TAISHO", {
        ja: { long: "大正", short: "大", narrow: "T" },
        en: { long: "Taisho", short: "Tai", narrow: "T" },
    }, (0, date_fns_1.parseISO)("1912-07-30T00:00:00+09:00"), (0, date_fns_1.parseISO)("1926-12-26T00:00:00+09:00"));
    static SHOWA = new JapaneseEra("SHOWA", {
        ja: { long: "昭和", short: "昭", narrow: "S" },
        en: { long: "Showa", short: "Sho", narrow: "S" },
    }, (0, date_fns_1.parseISO)("1926-12-26T00:00:00+09:00"), (0, date_fns_1.parseISO)("1989-01-08T00:00:00+09:00"));
    static HEISEI = new JapaneseEra("HEISEI", {
        ja: { long: "平成", short: "平", narrow: "H" },
        en: { long: "Heisei", short: "Hei", narrow: "H" },
    }, (0, date_fns_1.parseISO)("1989-01-08T00:00:00+09:00"), (0, date_fns_1.parseISO)("2019-05-01T00:00:00+09:00"));
    static REIWA = new JapaneseEra("REIWA", {
        ja: { long: "令和", short: "令", narrow: "R" },
        en: { long: "Reiwa", short: "Rei", narrow: "R" },
    }, (0, date_fns_1.parseISO)("2019-05-01T00:00:00+09:00"));
    static values() {
        return [
            JapaneseEra.MEIJI,
            JapaneseEra.TAISHO,
            JapaneseEra.SHOWA,
            JapaneseEra.HEISEI,
            JapaneseEra.REIWA,
        ];
    }
    static of(date) {
        for (const value of JapaneseEra.values()) {
            if (value.includes(date)) {
                return value;
            }
        }
    }
    static from(name, options) {
        const locale = options?.locale ?? (0, getLocale_cjs_1.getLocale)();
        const keyRE = new RegExp(`^${(0, escapeRegExp_cjs_1.escapeRegExp)(name)}$`, "i");
        for (const value of JapaneseEra.values()) {
            if (keyRE.test(value.name)) {
                return value;
            }
            const localNames = value.localeNames[locale] ?? value.localeNames.en;
            for (const key in localNames) {
                if (keyRE.test(localNames[key])) {
                    return value;
                }
            }
        }
    }
    constructor(name, localeNames, start, end) {
        this.name = name;
        this.localeNames = localeNames;
        this.start = start;
        this.end = end;
    }
    includes(date) {
        return this.start <= date && (this.end == null || this.end > date);
    }
    toLocaleString(locale, options) {
        const target = (locale ?? (0, getLocale_cjs_1.getLocale)()).split(/-/g)[0];
        const style = options?.style || "long";
        const names = this.localeNames[target];
        if (names) {
            return names[style];
        }
        return this.localeNames.en[style];
    }
    toString() {
        return this.name;
    }
}
exports.JapaneseEra = JapaneseEra;