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			37 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			37 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| const ALIAS = Symbol.for('yaml.alias');
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| const DOC = Symbol.for('yaml.document');
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| const MAP = Symbol.for('yaml.map');
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| const PAIR = Symbol.for('yaml.pair');
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| const SCALAR = Symbol.for('yaml.scalar');
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| const SEQ = Symbol.for('yaml.seq');
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| const NODE_TYPE = Symbol.for('yaml.node.type');
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| const isAlias = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === ALIAS;
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| const isDocument = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === DOC;
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| const isMap = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === MAP;
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| const isPair = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === PAIR;
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| const isScalar = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === SCALAR;
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| const isSeq = (node) => !!node && typeof node === 'object' && node[NODE_TYPE] === SEQ;
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| function isCollection(node) {
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|     if (node && typeof node === 'object')
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|         switch (node[NODE_TYPE]) {
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|             case MAP:
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|             case SEQ:
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|                 return true;
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|         }
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|     return false;
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| }
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| function isNode(node) {
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|     if (node && typeof node === 'object')
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|         switch (node[NODE_TYPE]) {
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|             case ALIAS:
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|             case MAP:
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|             case SCALAR:
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|             case SEQ:
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|                 return true;
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|         }
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|     return false;
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| }
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| const hasAnchor = (node) => (isScalar(node) || isCollection(node)) && !!node.anchor;
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| 
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| export { ALIAS, DOC, MAP, NODE_TYPE, PAIR, SCALAR, SEQ, hasAnchor, isAlias, isCollection, isDocument, isMap, isNode, isPair, isScalar, isSeq };
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