18 lines
469 B
JavaScript
18 lines
469 B
JavaScript
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'use strict';
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var Scalar = require('../../nodes/Scalar.js');
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const nullTag = {
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identify: value => value == null,
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createNode: () => new Scalar.Scalar(null),
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default: true,
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tag: 'tag:yaml.org,2002:null',
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test: /^(?:~|[Nn]ull|NULL)?$/,
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resolve: () => new Scalar.Scalar(null),
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stringify: ({ source }, ctx) => typeof source === 'string' && nullTag.test.test(source)
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? source
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: ctx.options.nullStr
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};
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exports.nullTag = nullTag;
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