parserhelper.cs

NHibernate NET开发者所需的

using NHibernate.Util;

namespace NHibernate.Hql.Classic
{
	/// <summary></summary>
	public sealed class ParserHelper
	{
		public const string HqlVariablePrefix = ":";

		public const string HqlSeparators = " \n\r\f\t,()=<>&|+-=/*'^![]#~\\";
		//NOTICE: no " or . since they are part of (compound) identifiers

		public const string PathSeparators = ".";

		public const string Whitespace = " \n\r\f\t";

		public static bool IsWhitespace(string str)
		{
			return Whitespace.IndexOf(str) > - 1;
		}

		private ParserHelper()
		{
		}

		public static void Parse(IParser p, string text, string seperators, QueryTranslator q)
		{
			StringTokenizer tokens = new StringTokenizer(text, seperators, true);
			p.Start(q);
			foreach (string token in tokens)
			{
				p.Token(token, q);
			}
			p.End(q);
		}
	}
}