FlashProgram.fromIntelHex = function()

in editor/prepend/dapjs.js [2976:3021]
46 lines of code
10 McCabe index (conditional complexity)

    FlashProgram.fromIntelHex = function (hex) {
        var lines = hex.split(/\n/);
        var upperAddr = 0;
        var startAddr = 0;
        var current = null;
        var chunks = [];
        for (var i = 0; i < lines.length; i++) {
            var line = lines[i];
            if (line.substr(0, 1) !== ":") {
                throw new Error("Invaild line in hex file: " + (i + 1));
            }
            else {
                var length_1 = parseInt(line.substr(1, 2), 16);
                var addr = upperAddr + parseInt(line.substr(3, 4), 16);
                var fieldType = parseInt(line.substr(7, 2), 16);
                var data = line.substr(9, length_1 * 2);
                if (fieldType === 0x00) {
                    if (current && addr !== startAddr + (current.length / 2)) {
                        // non-contiguous
                        var sectionData = util_1.hex2bin(current);
                        chunks.push(new FlashSection(startAddr, new Uint32Array(sectionData.buffer)));
                        current = "";
                        startAddr = addr;
                    }
                    else if (!current) {
                        startAddr = addr;
                        current = "";
                    }
                    current += data;
                }
                else if (fieldType === 0x01) {
                    // EOF
                    break;
                }
                else if (fieldType === 0x02) {
                    // extended segment address record
                    upperAddr = parseInt(data, 16) << 4;
                }
                else if (fieldType === 0x04) {
                    // extended linear address record
                    upperAddr = parseInt(data, 16) << 16;
                }
            }
        }
        return new FlashProgram(chunks);
    };