deno.land / std@0.224.0 / yaml / _type / nil.ts

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// Ported from js-yaml v3.13.1:// https://github.com/nodeca/js-yaml/commit/665aadda42349dcae869f12040d9b10ef18d12da// Copyright 2011-2015 by Vitaly Puzrin. All rights reserved. MIT license.// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { Type } from "../type.ts";
function resolveYamlNull(data: string): boolean { const max = data.length;
return ( (max === 1 && data === "~") || (max === 4 && (data === "null" || data === "Null" || data === "NULL")) );}
function constructYamlNull(): null { return null;}
function isNull(object: unknown): object is null { return object === null;}
export const nil = new Type("tag:yaml.org,2002:null", { construct: constructYamlNull, defaultStyle: "lowercase", kind: "scalar", predicate: isNull, represent: { canonical(): string { return "~"; }, lowercase(): string { return "null"; }, uppercase(): string { return "NULL"; }, camelcase(): string { return "Null"; }, }, resolve: resolveYamlNull,});
std

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Tagged at
6 months ago