csparse.js

var cs = {};

cs.parse = function(cssString) {
    var separateEachSelector = cssString.replace(/\n/g, '').split('}')

    separateEachSelector.pop(); //Last element will be //'' or \n
    var cssObj = {}
    for (var i = 0; i < separateEachSelector.length; i += 1) {
        var sepSelectorAndData = separateEachSelector[i].split('{');
        var selector = sepSelectorAndData[0].trim();
        var fields = sepSelectorAndData[1].trim()

        var individualFields = fields.split(';');
        individualFields.pop();
        cssObj[selector] = {};

        for (var j = 0; j < individualFields.length; j += 1) {
            var sepPropAndValue = individualFields[j].split(':');
            cssObj[selector][sepPropAndValue[0]] = sepPropAndValue[1];
        }
    }
    return cssObj
}


cs.stringify = function(cssObject) {
    var cssString = '';
    for (var selector in cssObject) {
        var mainObject = cssObject[selector]
        cssString += selector + ' {\n';
        for (var field in mainObject) {
            field + ':' + mainObject[field] + '\n;';
        }
        cssString += '}\n';
    }
    return cssString;
}