22 lines
614 B
TypeScript
22 lines
614 B
TypeScript
import { Type as YamlType } from 'js-yaml';
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import { isNil } from 'lodash';
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import { InvalidArgumentError } from '../error/InvalidArgumentError';
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export const REGEXP_REGEXP = /^\/(.+)\/([gimsuy]*)$/;
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export const regexpType = new YamlType('!regexp', {
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kind: 'scalar',
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resolve(value: string) {
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return REGEXP_REGEXP.test(value);
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},
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construct(value: string): RegExp {
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const match = REGEXP_REGEXP.exec(value);
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if (isNil(match)) {
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throw new InvalidArgumentError('invalid regexp');
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}
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const [/* input */, expr, flags] = Array.from(match);
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return new RegExp(expr, flags);
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},
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});
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