Experiments/Attic/Rook/Castle.Rook.Compiler/Parser/antlr/NoViableAltForCharException.cs

   1 using System;
   2 using StringBuilder                             = System.Text.StringBuilder;
   3
   4 namespace antlr
   5 {
   6         /*ANTLR Translator Generator
   7         * Project led by Terence Parr at http://www.jGuru.com
   8         * Software rights: http://www.antlr.org/license.html
   9         *
  10         * $Id:$
  11         */
  12
  13         //
  14         // ANTLR C# Code Generator by Micheal Jordan
  15         //                            Kunle Odutola       : kunle UNDERSCORE odutola AT hotmail DOT com
  16         //                            Anthony Oguntimehin
  17         //
  18         // With many thanks to Eric V. Smith from the ANTLR list.
  19         //
  20
  21         [Serializable]
  22         public class NoViableAltForCharException : RecognitionException
  23         {
  24                 public char foundChar;
  25
  26                 public NoViableAltForCharException(char c, CharScanner scanner) :
  27                                         base("NoViableAlt", scanner.getFilename(), scanner.getLine(), scanner.getColumn())
  28                 {
  29                         foundChar = c;
  30                 }
  31
  32                 public NoViableAltForCharException(char c, string fileName, int line, int column) :
  33                                         base("NoViableAlt", fileName, line, column)
  34                 {
  35                         foundChar = c;
  36                 }
  37
  38                 /*
  39                 * Returns a clean error message (no line number/column information)
  40                 */
  41                 override public string Message
  42                 {
  43                         get
  44                         {
  45                                 StringBuilder mesg = new StringBuilder("unexpected char: ");
  46
  47                                 // I'm trying to mirror a change in the C++ stuff.
  48                                 // But java seems to lack something isprint-ish..
  49                                 // so we do it manually. This is probably too restrictive.
  50
  51                                 if ((foundChar >= ' ') && (foundChar <= '~'))
  52                                 {
  53                                         mesg.Append('\'');
  54                                         mesg.Append(foundChar);
  55                                         mesg.Append('\'');
  56                                 }
  57                                 else
  58                                 {
  59                                         mesg.Append("0x");
  60                                         mesg.Append(((int)foundChar).ToString("X"));
  61                                 }
  62                                 return mesg.ToString();
  63                         }
  64                 }
  65         }
  66 }