schema.js•1.9 kB
'use strict';
var Scalar = require('../../nodes/Scalar.js');
var map = require('../common/map.js');
var seq = require('../common/seq.js');
function intIdentify(value) {
return typeof value === 'bigint' || Number.isInteger(value);
}
const stringifyJSON = ({ value }) => JSON.stringify(value);
const jsonScalars = [
{
identify: value => typeof value === 'string',
default: true,
tag: 'tag:yaml.org,2002:str',
resolve: str => str,
stringify: stringifyJSON
},
{
identify: value => value == null,
createNode: () => new Scalar.Scalar(null),
default: true,
tag: 'tag:yaml.org,2002:null',
test: /^null$/,
resolve: () => null,
stringify: stringifyJSON
},
{
identify: value => typeof value === 'boolean',
default: true,
tag: 'tag:yaml.org,2002:bool',
test: /^true$|^false$/,
resolve: str => str === 'true',
stringify: stringifyJSON
},
{
identify: intIdentify,
default: true,
tag: 'tag:yaml.org,2002:int',
test: /^-?(?:0|[1-9][0-9]*)$/,
resolve: (str, _onError, { intAsBigInt }) => intAsBigInt ? BigInt(str) : parseInt(str, 10),
stringify: ({ value }) => intIdentify(value) ? value.toString() : JSON.stringify(value)
},
{
identify: value => typeof value === 'number',
default: true,
tag: 'tag:yaml.org,2002:float',
test: /^-?(?:0|[1-9][0-9]*)(?:\.[0-9]*)?(?:[eE][-+]?[0-9]+)?$/,
resolve: str => parseFloat(str),
stringify: stringifyJSON
}
];
const jsonError = {
default: true,
tag: '',
test: /^/,
resolve(str, onError) {
onError(`Unresolved plain scalar ${JSON.stringify(str)}`);
return str;
}
};
const schema = [map.map, seq.seq].concat(jsonScalars, jsonError);
exports.schema = schema;