Experiments/Attic/Rook/Castle.Rook.Compiler/Parser/antlr/debug/Tracer.cs

   1 namespace antlr.debug
   2 {
   3         using System;
   4
   5         public class Tracer : TraceListenerBase, TraceListener
   6         {
   7                 protected string indentString = "";
   8                 // TBD: should be StringBuffer
   9
  10
  11                 protected internal virtual void  dedent()
  12                 {
  13                         if (indentString.Length < 2)
  14                                 indentString = "";
  15                         else
  16                                 indentString = indentString.Substring(2);
  17                 }
  18                 public override void  enterRule(object source, TraceEventArgs e)
  19                 {
  20                         System.Console.Out.WriteLine(indentString + e);
  21                         indent();
  22                 }
  23                 public override void  exitRule(object source, TraceEventArgs e)
  24                 {
  25                         dedent();
  26                         System.Console.Out.WriteLine(indentString + e);
  27                 }
  28                 protected internal virtual void  indent()
  29                 {
  30                         indentString += "  ";
  31                 }
  32         }
  33 }