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lawID.ts
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lawID.ts
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import { assertNever } from "../util";
import { Era } from "./std";
// c.f. https://elaws.e-gov.go.jp/file/LawIdNamingConvention.pdf
export enum LawIDType {
Constitution = "Constitution",
Act = "Act",
CabinetOrder = "CabinetOrder",
ImperialOrder = "ImperialOrder",
DajokanFukoku = "DajokanFukoku",
DajokanTasshi = "DajokanTasshi",
DajokanFutatsu = "DajokanFutatsu",
MinisterialOrdinance = "MinisterialOrdinance",
Jinji = "Jinji",
Rule = "Rule",
PrimeMinisterDecision = "PrimeMinisterDecision",
}
export const lawIDTypes = Object.values(LawIDType);
export const ptnLawID: {[K in LawIDType]: string} = {
// e.g. `321CONSTITUTION` (昭和二十一年憲法)
[LawIDType.Constitution]: "\
(?<era>\\d)\
(?<year>\\d{2})\
CONSTITUTION\
",
// e.g. `335AC0000000105` (昭和三十五年法律第百五号)
[LawIDType.Act]: "\
(?<era>\\d)\
(?<year>\\d{2})\
AC\
(?<category>\\d{7})\
(?<num>\\d{3})\
",
// e.g. `415CO0000000263` (平成十五年政令第二百六十三号)
[LawIDType.CabinetOrder]: "\
(?<era>\\d)\
(?<year>\\d{2})\
CO\
(?<category>\\d{7})\
(?<num>\\d{3})\
",
// e.g. `318IO0000000618` (昭和十八年勅令第六百十八号)
[LawIDType.ImperialOrder]: "\
(?<era>\\d)\
(?<year>\\d{2})\
IO\
(?<category>\\d{7})\
(?<num>\\d{3})\
",
// e.g. `105DF0000000337` (明治五年太政官布告第三百三十七号)
[LawIDType.DajokanFukoku]: "\
(?<era>\\d)\
(?<year>\\d{2})\
DF\
(?<category>\\d{7})\
(?<num>\\d{3})\
",
// e.g. `110DT0000000097` (明治十年太政官達第九十七号)
[LawIDType.DajokanTasshi]: "\
(?<era>\\d)\
(?<year>\\d{2})\
DT\
(?<category>\\d{7})\
(?<num>\\d{3})\
",
// e.g. `106DH0000000016` (明治六年太政官布達第十六号)
[LawIDType.DajokanFutatsu]: "\
(?<era>\\d)\
(?<year>\\d{2})\
DH\
(?<category>\\d{7})\
(?<num>\\d{3})\
",
// e.g. `427M60001080001` (平成二十七年文部科学省・環境省令第一号)
[LawIDType.MinisterialOrdinance]: "\
(?<era>\\d)\
(?<year>\\d{2})\
M\
(?<category>[0-9a-fA-F]{8})\
(?<num>\\d{3})\
",
// e.g. `333RJNJ09024000` (昭和三十三年人事院規則九―二四), `427RJNJ09017142` (平成二十七年人事院規則九―一七―一四二)
[LawIDType.Jinji]: "\
(?<era>\\d)\
(?<year>\\d{2})\
R\
JNJ\
(?<num1>\\d{2})\
(?<num2>\\d{3})\
(?<num3>\\d{3})\
",
// e.g. `322R00000001001` (昭和二十二年会計検査院規則第一号)
[LawIDType.Rule]: "\
(?<era>\\d)\
(?<year>\\d{2})\
R\
(?<category>[0-9a-fA-F]{8})\
(?<num>\\d{3})\
",
// e.g. `427RPMD10100000` ( 平成二十七年十月十日内閣総理大臣決定)
[LawIDType.PrimeMinisterDecision]: "\
(?<era>\\d)\
(?<year>\\d{2})\
R\
PMD\
(?<date>[0-9a-fA-F]{4})\
(?<num>\\d{4})\
",
};
const reLawID = Object.fromEntries(Object.entries(ptnLawID).map(([key, value]) => [key, new RegExp(`^${value}$`)] as const)) as {[K in LawIDType]: RegExp};
const eraNumToEra = {
"1": Era.Meiji,
"2": Era.Taisho,
"3": Era.Showa,
"4": Era.Heisei,
"5": Era.Reiwa,
} as const;
export interface LawIDStructConstitution {
text: string,
type: LawIDType.Constitution,
era: Era,
year: string,
}
export enum LawIDActCategory {
Cabinet = "0000000",
HouseOfRepresentative = "1000000",
HouseOfCouncillors = "0100000",
}
export interface LawIDStructAct {
text: string,
type: LawIDType.Act,
era: Era,
year: string,
category: LawIDActCategory,
rawNum: string,
num: string,
}
export enum LawIDCabinetOrderEffect {
CabinetOrder = "0000000",
Act = "1000000",
}
export interface LawIDStructCabinetOrder {
text: string,
type: LawIDType.CabinetOrder,
era: Era,
year: string,
category: LawIDCabinetOrderEffect,
rawNum: string,
num: string,
}
export interface LawIDStructImperialOrder {
text: string,
type: LawIDType.ImperialOrder,
era: Era,
year: string,
category: LawIDCabinetOrderEffect,
rawNum: string,
num: string,
}
export interface LawIDStructDajokanFukoku {
text: string,
type: LawIDType.DajokanFukoku,
era: Era,
year: string,
category: LawIDCabinetOrderEffect,
rawNum: string,
num: string,
}
export interface LawIDStructDajokanTasshi {
text: string,
type: LawIDType.DajokanTasshi,
era: Era,
year: string,
category: LawIDCabinetOrderEffect,
rawNum: string,
num: string,
}
export interface LawIDStructDajokanFutatsu {
text: string,
type: LawIDType.DajokanFutatsu,
era: Era,
year: string,
category: LawIDCabinetOrderEffect,
rawNum: string,
num: string,
}
export interface LawIDStructMinisterialOrdinance {
text: string,
type: LawIDType.MinisterialOrdinance,
era: Era,
year: string,
category: string,
rawNum: string,
num: string,
}
export interface LawIDStructJinji {
text: string,
type: LawIDType.Jinji,
era: Era,
year: string,
rawNumPart1: string,
rawNumPart2: string,
rawNumPart3: string,
num: string,
}
export interface LawIDStructRule {
text: string,
type: LawIDType.Rule,
era: Era,
year: string,
category: string,
rawNum: string,
num: string,
}
export interface LawIDStructPrimeMinisterDecision {
text: string,
type: LawIDType.PrimeMinisterDecision,
era: Era,
year: string,
date: string,
rawNum: string,
num: string,
}
export type LawIDStruct =
| LawIDStructConstitution
| LawIDStructAct
| LawIDStructCabinetOrder
| LawIDStructImperialOrder
| LawIDStructDajokanFukoku
| LawIDStructDajokanTasshi
| LawIDStructDajokanFutatsu
| LawIDStructMinisterialOrdinance
| LawIDStructJinji
| LawIDStructRule
| LawIDStructPrimeMinisterDecision
;
export const parseLawID = (text: string): LawIDStruct | null => {
for (const type of lawIDTypes) {
const re = reLawID[type];
const m = re.exec(text);
if (!m || !m.groups) continue;
if (type === LawIDType.MinisterialOrdinance) {
return {
text,
type,
era: (eraNumToEra as {[K: string]: Era})[m.groups.era],
year: m.groups.year,
category: m.groups.category,
rawNum: m.groups.num,
num: m.groups.num.replace(/^(?:0(?!$))+/, ""),
};
}
else if (type === LawIDType.Act) {
return {
text,
type,
era: (eraNumToEra as {[K: string]: Era})[m.groups.era],
year: m.groups.year,
category: m.groups.category as LawIDActCategory,
rawNum: m.groups.num,
num: m.groups.num.replace(/^(?:0(?!$))+/, ""),
};
}
else if (type === LawIDType.CabinetOrder || type === LawIDType.ImperialOrder || type === LawIDType.DajokanFukoku || type === LawIDType.DajokanTasshi || type === LawIDType.DajokanFutatsu) {
return {
text,
type,
era: (eraNumToEra as {[K: string]: Era})[m.groups.era],
year: m.groups.year,
category: m.groups.category as LawIDCabinetOrderEffect,
rawNum: m.groups.num,
num: m.groups.num.replace(/^(?:0(?!$))+/, ""),
};
}
else if (type === LawIDType.Jinji) {
const numParts: string[] = [
m.groups.num1.replace(/^(?:0(?!$))+/, ""),
m.groups.num2.replace(/^(?:0(?!$))+/, ""),
];
if (m.groups.num3 !== "000") {
numParts.push(m.groups.num3.replace(/^(?:0(?!$))+/, ""));
}
return {
text,
type,
era: (eraNumToEra as {[K: string]: Era})[m.groups.era],
year: m.groups.year,
rawNumPart1: m.groups.num1,
rawNumPart2: m.groups.num2,
rawNumPart3: m.groups.num3,
num: numParts.join("_"),
};
}
else if (type === LawIDType.Rule) {
return {
text,
type,
era: (eraNumToEra as {[K: string]: Era})[m.groups.era],
year: m.groups.year,
category: m.groups.category,
rawNum: m.groups.num,
num: m.groups.num.replace(/^(?:0(?!$))+/, ""),
};
}
else if (type === LawIDType.PrimeMinisterDecision) {
return {
text,
type,
era: (eraNumToEra as {[K: string]: Era})[m.groups.era],
year: m.groups.year,
date: m.groups.date,
rawNum: m.groups.num,
num: m.groups.num.replace(/^0+/, ""),
};
}
else if (type === LawIDType.Constitution) {
return {
text,
type,
era: (eraNumToEra as {[K: string]: Era})[m.groups.era],
year: m.groups.year,
};
}
else { throw assertNever(type); }
}
return null;
};