129 lines
3.2 KiB
C#
129 lines
3.2 KiB
C#
//
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// TokenType.cs
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//
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// Author:
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// Marek Sieradzki (marek.sieradzki@gmail.com)
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// Jaroslaw Kowalski <jaak@jkowalski.net>
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//
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// (C) 2006 Marek Sieradzki
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// (C) 2004-2006 Jaroslaw Kowalski
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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using System;
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namespace Microsoft.Build.BuildEngine {
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internal class Token {
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string tokenValue;
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TokenType tokenType;
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public Token (string tokenValue, TokenType tokenType, int position)
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{
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this.tokenValue = tokenValue;
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this.tokenType = tokenType;
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this.Position = position + 1;
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}
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public string Value {
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get { return tokenValue; }
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}
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public TokenType Type {
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get { return tokenType; }
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}
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// this is 1-based
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public int Position {
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get; private set;
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}
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public static string TypeAsString (TokenType tokenType)
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{
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switch (tokenType) {
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case TokenType.Item:return "@";
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case TokenType.Property:return "$";
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case TokenType.Metadata:return "%";
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case TokenType.Transform:return "->";
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case TokenType.Less:return "<";
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case TokenType.Greater:return ">";
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case TokenType.LessOrEqual:return "<=";
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case TokenType.GreaterOrEqual:return ">=";
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case TokenType.Equal:return "=";
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case TokenType.NotEqual:return "!=";
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case TokenType.LeftParen:return "(";
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case TokenType.RightParen:return ")";
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case TokenType.Dot:return ".";
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case TokenType.Comma:return ",";
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case TokenType.Not:return "!";
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case TokenType.And:return "and";
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case TokenType.Or:return "or";
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case TokenType.Apostrophe:return "'";
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default: return tokenType.ToString ();
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}
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}
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public override string ToString ()
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{
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if (tokenType == TokenType.EOF || tokenType == TokenType.BOF)
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return String.Format ("{0} at character position {1}", tokenType.ToString (), Position);
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return String.Format ("\"{0}\" at character position {1}", tokenValue, Position);
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}
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}
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internal enum TokenType {
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EOF,
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BOF,
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Number,
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String,
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//Keyword,
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Punct,
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WhiteSpace,
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Item,
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Property,
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Metadata,
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FunctionName,
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Transform,
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// LiteralSubExpression,
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FirstPunct,
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Less,
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Greater,
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LessOrEqual,
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GreaterOrEqual,
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Equal,
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NotEqual,
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LeftParen,
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RightParen,
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Dot,
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Comma,
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Not,
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And,
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Or,
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Apostrophe,
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LastPunct,
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Invalid,
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}
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}
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