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digit grouping type supports Indian Number Grouping

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MaysWind
2025-08-15 23:58:15 +08:00
parent 2f8d4ad5e4
commit 274aa6a17c
19 changed files with 100 additions and 38 deletions
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src/core/numeral.ts
+49 -3
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@@ -110,8 +110,52 @@ export class DigitGroupingType implements TypeAndName {
private static readonly allInstancesByTypeName: Record<string, DigitGroupingType> = {};
public static readonly LanguageDefaultType: number = 0;
public static readonly None = new DigitGroupingType(1, 'None', 'None', false);
public static readonly ThousandsSeparator = new DigitGroupingType(2, 'ThousandsSeparator', 'Thousands Separator', true);
public static readonly None = new DigitGroupingType(1, 'None', 'None', false,
(numericChars: string[]) => {
return numericChars.join('');
}
);
public static readonly ThousandsSeparator = new DigitGroupingType(2, 'ThousandsSeparator', 'Thousands Separator', true,
(numericChars: string[], digitGroupingSymbol: string) => {
if (numericChars.length <= 3) {
return numericChars.join('');
}
let ret = '';
for (let i = numericChars.length - 1, j = 0; i >= 0; i--, j++) {
if (j > 0 && j % 3 === 0) {
ret = digitGroupingSymbol + ret;
}
ret = numericChars[i] + ret;
}
return ret;
}
);
public static readonly IndianNumberGrouping = new DigitGroupingType(3, 'IndianNumberGrouping', 'Indian Number Grouping', true,
(numericChars: string[], digitGroupingSymbol: string) => {
if (numericChars.length <= 3) {
return numericChars.join('');
}
let ret = '';
const length = numericChars.length;
for (let i = length - 1, j = 0; i >= 0; i--, j++) {
if (j === 3) {
ret = digitGroupingSymbol + ret;
} else if (j > 3 && (j - 3) % 2 === 0) {
ret = digitGroupingSymbol + ret;
}
ret = numericChars[i] + ret;
}
return ret;
}
);
public static readonly Default = DigitGroupingType.ThousandsSeparator;
@@ -119,12 +163,14 @@ export class DigitGroupingType implements TypeAndName {
public readonly typeName: string;
public readonly name: string;
public readonly enabled: boolean;
public readonly format: (numericChars: string[], digitGroupingSymbol: string) => string;
private constructor(type: number, typeName: string, name: string, enabled: boolean) {
private constructor(type: number, typeName: string, name: string, enabled: boolean, format: (numericChars: string[], digitGroupingSymbol: string) => string) {
this.type = type;
this.typeName = typeName;
this.name = name;
this.enabled = enabled;
this.format = format;
DigitGroupingType.allInstances.push(this);
DigitGroupingType.allInstancesByType[type] = this;