Simple CSS Parser

using System;
using System.Xml.Serialization;

namespace BoneSoft.CSS {
	/// <summary></summary>
	public class Function {
		private string name;
		private Expression expression;

		/// <summary></summary>
		[XmlAttribute("name")]
		public string Name {
			get { return name; }
			set { name = value; }
		}

		/// <summary></summary>
		[XmlElement("Expression")]
		public Expression Expression {
			get { return expression; }
			set { expression = value; }
		}

		/// <summary></summary>
		/// <returns></returns>
		public override string ToString() {
			/*
function<out Function func> =	(. func = new Function();
									Expression exp = null;
								.)
	ident						(. func.Name = t.val; .)
	'(' expr<out exp>			(. func.Expression = exp; .)
	')'
.
			*/
			System.Text.StringBuilder txt = new System.Text.StringBuilder();
			txt.AppendFormat("{0}(", name);
			if (expression != null) {
				bool first = true;
				foreach (Term t in expression.Terms) {
					//if (t.Value.EndsWith("=")) {
					if (first) {
						first = false;
					} else if (!t.Value.EndsWith("=")) {
						txt.Append(", ");
					}

					bool quoteMe = false;
					if (t.Type == TermType.String && !t.Value.EndsWith("=")) {
						quoteMe = true;
					}
					if (quoteMe) { txt.Append("'"); }
					txt.Append(t.ToString());
					if (quoteMe) { txt.Append("'"); }
				}
			}
			txt.Append(")");
			return txt.ToString();
		}
	}
}