(function (tree) {
tree.Keyword = function (value) { this.value = value }; tree.Keyword.prototype = {
eval: function () { return this }, toCSS: function () { return this.value }, compare: function (other) { if (other instanceof tree.Keyword) { return other.value === this.value ? 0 : 1; } else { return -1; } }
};
tree.True = new(tree.Keyword)('true'); tree.False = new(tree.Keyword)('false');
})(require('../tree'));