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59 lines
1.3 KiB
TypeScript
59 lines
1.3 KiB
TypeScript
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// Loaded from https://deno.land/x/segno@v1.1.0/lib/validations/isDecimal.ts
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// @ts-ignore allowing typedoc to build
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import { decimal } from '../helpers/alpha.ts';
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// @ts-ignore allowing typedoc to build
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import { assertString } from '../helpers/assertString.ts';
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// @ts-ignore allowing typedoc to build
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import { includes } from '../helpers/includes.ts';
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type DecimalOptions = {
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forceDecimal?: boolean;
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decimalDigits?: string;
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locale?: string;
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};
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/**
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* @ignore
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*/
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const decimalRegExp = (options: Required<DecimalOptions>) => {
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const regExp = new RegExp(
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`^[-+]?([0-9]+)?(\\${(decimal as any)[options.locale]}[0-9]{${
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options.decimalDigits
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}})${options.forceDecimal ? '' : '?'}$`
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);
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return regExp;
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};
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/**
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* @ignore
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*/
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const defaultDecimalOptions = {
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forceDecimal: false,
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decimalDigits: '1,',
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locale: 'en-US',
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};
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/**
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* @ignore
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*/
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const blacklist = ['', '-', '+'];
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export const isDecimal = (str: string, options?: DecimalOptions) => {
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assertString(str);
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options = {
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...defaultDecimalOptions,
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...options,
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};
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if ((options as Required<DecimalOptions>).locale in decimal) {
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return (
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!includes(blacklist, str.replace(/ /g, '')) &&
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decimalRegExp(options as Required<DecimalOptions>).test(str)
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);
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}
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throw new Error(`Invalid locale '${options.locale}'`);
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};
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