yaml/dist/schema/tags.js

JavaScript parser and stringifier for YAML

'use strict';

var map = require('./common/map.js');
var _null = require('./common/null.js');
var seq = require('./common/seq.js');
var string = require('./common/string.js');
var bool = require('./core/bool.js');
var float = require('./core/float.js');
var int = require('./core/int.js');
var schema = require('./core/schema.js');
var schema$1 = require('./json/schema.js');
var binary = require('./yaml-1.1/binary.js');
var merge = require('./yaml-1.1/merge.js');
var omap = require('./yaml-1.1/omap.js');
var pairs = require('./yaml-1.1/pairs.js');
var schema$2 = require('./yaml-1.1/schema.js');
var set = require('./yaml-1.1/set.js');
var timestamp = require('./yaml-1.1/timestamp.js');

const schemas = new Map([
    ['core', schema.schema],
    ['failsafe', [map.map, seq.seq, string.string]],
    ['json', schema$1.schema],
    ['yaml11', schema$2.schema],
    ['yaml-1.1', schema$2.schema]
]);
const tagsByName = {
    binary: binary.binary,
    bool: bool.boolTag,
    float: float.float,
    floatExp: float.floatExp,
    floatNaN: float.floatNaN,
    floatTime: timestamp.floatTime,
    int: int.int,
    intHex: int.intHex,
    intOct: int.intOct,
    intTime: timestamp.intTime,
    map: map.map,
    merge: merge.merge,
    null: _null.nullTag,
    omap: omap.omap,
    pairs: pairs.pairs,
    seq: seq.seq,
    set: set.set,
    timestamp: timestamp.timestamp
};
const coreKnownTags = {
    'tag:yaml.org,2002:binary': binary.binary,
    'tag:yaml.org,2002:merge': merge.merge,
    'tag:yaml.org,2002:omap': omap.omap,
    'tag:yaml.org,2002:pairs': pairs.pairs,
    'tag:yaml.org,2002:set': set.set,
    'tag:yaml.org,2002:timestamp': timestamp.timestamp
};
function getTags(customTags, schemaName, addMergeTag) {
    const schemaTags = schemas.get(schemaName);
    if (schemaTags && !customTags) {
        return addMergeTag && !schemaTags.includes(merge.merge)
            ? schemaTags.concat(merge.merge)
            : schemaTags.slice();
    }
    let tags = schemaTags;
    if (!tags) {
        if (Array.isArray(customTags))
            tags = [];
        else {
            const keys = Array.from(schemas.keys())
                .filter(key => key !== 'yaml11')
                .map(key => JSON.stringify(key))
                .join(', ');
            throw new Error(`Unknown schema "${schemaName}"; use one of ${keys} or define customTags array`);
        }
    }
    if (Array.isArray(customTags)) {
        for (const tag of customTags)
            tags = tags.concat(tag);
    }
    else if (typeof customTags === 'function') {
        tags = customTags(tags.slice());
    }
    if (addMergeTag)
        tags = tags.concat(merge.merge);
    return tags.reduce((tags, tag) => {
        const tagObj = typeof tag === 'string' ? tagsByName[tag] : tag;
        if (!tagObj) {
            const tagName = JSON.stringify(tag);
            const keys = Object.keys(tagsByName)
                .map(key => JSON.stringify(key))
                .join(', ');
            throw new Error(`Unknown custom tag ${tagName}; use one of ${keys}`);
        }
        if (!tags.includes(tagObj))
            tags.push(tagObj);
        return tags;
    }, []);
}

exports.coreKnownTags = coreKnownTags;
exports.getTags = getTags;