getLookupTables method

dynamic getLookupTables(dynamic script, dynamic language, dynamic feature, dynamic lookupType, bool create,)

Get the lookup tables of a given type for a script/language/feature. @instance @param {string} script='DFLT' @param {string} language='dlft' @param {string} feature - 4-letter feature code @param {number} lookupType - 1 to 9 @param {boolean} create - forces the creation of the lookup table if it doesn't exist, with no subtables. @return {Object[]}

Implementation

getLookupTables(script, language, feature, lookupType, bool create) {
    var featureTable = this.getFeatureTable(script, language, feature, create);
    var tables = [];
    if (featureTable != null) {
        var lookupTable;
        var lookupListIndexes = featureTable["lookupListIndexes"];
        var allLookups = this.font.tables[this.tableName]["lookups"];
        // lookupListIndexes are in no particular order, so use naive search.
        for (var i = 0; i < lookupListIndexes.length; i++) {
            lookupTable = allLookups[lookupListIndexes[i]];
            if (lookupTable["lookupType"] == lookupType) {
                tables.add(lookupTable);
            }
        }
        if (tables.length == 0 && create) {
            lookupTable = {
                "lookupType": lookupType,
                "lookupFlag": 0,
                "subtables": [],
                "markFilteringSet": null
            };
            var index = allLookups.length;
            allLookups.add(lookupTable);
            lookupListIndexes.add(index);
            return [lookupTable];
        }
    }
    return tables;
}