parseMacKernTable function

dynamic parseMacKernTable(dynamic p)

Implementation

parseMacKernTable(p) {
    var pairs = {};
    // The Mac kern table stores the version as a fixed (32 bits) but we only loaded the first 16 bits.
    // Skip the rest.
    p.skip('uShort');
    var nTables = p.parseULong();
    //check.argument(nTables === 1, 'Only 1 subtable is supported (got ' + nTables + ').');
    if (nTables > 1) {
        print('Only the first kern subtable is supported.');
    }
    p.skip('uLong');
    var coverage = p.parseUShort();
    var subtableVersion = coverage & 0xFF;
    p.skip('uShort');
    if (subtableVersion == 0) {
        var nPairs = p.parseUShort();
        // Skip searchRange, entrySelector, rangeShift.
        p.skip('uShort', 3);
        for (var i = 0; i < nPairs; i += 1) {
            var leftIndex = p.parseUShort();
            var rightIndex = p.parseUShort();
            var value = p.parseShort();
            pairs[leftIndex + ',' + rightIndex] = value;
        }
    }
    return pairs;
}