Javascript regexp to extract matrix values from a String into an Array

gistfile1.txt

// via http://stackoverflow.com/a/14397066/999162

var matrixToArray = function(str){
    return str.match(/(-?[0-9\.]+)/g);
};

matrixToArray('rgba(0, 0, 0, 0.5)'); // => ['0', '0', '0', '0.5']
matrixToArray('matrix(1, 0, 0, 1, -770, 0)'); // => ['1', '0', '0', '1', '-770', '0']