KeyMap.js

    function _normalizeKeyDescriptorString(origDescriptor) {
        var hasCtrl = false,
            hasAlt = false,
            hasShift = false,
            key = "";
        
        function _isModifier(left, right, previouslyFound) {
            if (!left || !right) {
                return false;
            }
            left = left.trim().toLowerCase();
            right = right.trim().toLowerCase();
            var matched = (left.length > 0 && left === right);
            if (matched && previouslyFound) {
                console.log("KeyMap _normalizeKeyDescriptorString() - Modifier defined twice: " + origDescriptor);
            }
            return matched;
        }
        
        origDescriptor.split("-").forEach(function parseDescriptor(ele, i, arr) {
            if (_isModifier("ctrl", ele, hasCtrl)) {
                hasCtrl = true;
            } else if (_isModifier("cmd", ele, hasCtrl)) {
                console.log("KeyMap _normalizeKeyDescriptorString() - Cmd getting mapped to Ctrl from: " + origDescriptor);
                hasCtrl = true;
            } else if (_isModifier("alt", ele, hasAlt)) {
                hasAlt = true;
            } else if (_isModifier("opt", ele, hasAlt)) {
                console.log("KeyMap _normalizeKeyDescriptorString() - Opt getting mapped to Alt from: " + origDescriptor);
                hasAlt = true;
            } else if (_isModifier("shift", ele, hasShift)) {
                hasShift = true;
            } else if (key.length > 0) {
                console.log("KeyMap _normalizeKeyDescriptorString() - Multiple keys defined. Using key: " + key + " from: " + origDescriptor);
            } else {
                key = ele;
            }
        });
        
        return _buildKeyDescriptor(hasCtrl, hasAlt, hasShift, key);
    }

KeyMapModified.js

    function _isModifier(left, right, previouslyFound, origDescriptor) {
        if (!left || !right) {
            return false;
        }
        left = left.trim().toLowerCase();
        right = right.trim().toLowerCase();
        var matched = (left.length > 0 && left === right);
        if (matched && previouslyFound) {
            console.log("KeyMap _normalizeKeyDescriptorString() - Modifier defined twice: " + origDescriptor);
        }
        return matched;
    }
    
    
    function _normalizeKeyDescriptorString(origDescriptor) {
        var hasCtrl = false,
            hasAlt = false,
            hasShift = false,
            key = "";
        
        origDescriptor.split("-").forEach(function parseDescriptor(ele, i, arr) {
            if (_isModifier("ctrl", ele, hasCtrl)) {
                hasCtrl = true;
            } else if (_isModifier("cmd", ele, hasCtrl, this)) {
                console.log("KeyMap _normalizeKeyDescriptorString() - Cmd getting mapped to Ctrl from: " + origDescriptor);
                hasCtrl = true;
            } else if (_isModifier("alt", ele, hasAlt, this)) {
                hasAlt = true;
            } else if (_isModifier("opt", ele, hasAlt, this)) {
                console.log("KeyMap _normalizeKeyDescriptorString() - Opt getting mapped to Alt from: " + origDescriptor);
                hasAlt = true;
            } else if (_isModifier("shift", ele, hasShift, this)) {
                hasShift = true;
            } else if (key.length > 0) {
                console.log("KeyMap _normalizeKeyDescriptorString() - Multiple keys defined. Using key: " + key + " from: " + origDescriptor);
            } else {
                key = ele;
            }
        });
        
        return _buildKeyDescriptor(hasCtrl, hasAlt, hasShift, key);
    }