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18 lines
534 B
TypeScript
18 lines
534 B
TypeScript
// Loaded from https://deno.land/x/cliffy@v0.12.1/packages/flags/lib/types/boolean.ts
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import { IFlagArgument, IFlagOptions, ITypeHandler } from '../types.ts';
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export const boolean: ITypeHandler<boolean> = ( option: IFlagOptions, arg: IFlagArgument, value: string ): boolean => {
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if ( ~[ '1', 'true' ].indexOf( value ) ) {
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return true;
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}
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if ( ~[ '0', 'false' ].indexOf( value ) ) {
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return false;
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}
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throw new Error( `Option --${ option.name } must be of type boolean but got: ${ value }` );
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};
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