add support for << and >> to CharTopology.toString()

[sbp.git] / src / edu / berkeley / sbp / chr / CharTopology.java

diff --git a/src/edu/berkeley/sbp/chr/CharTopology.java b/src/edu/berkeley/sbp/chr/CharTopology.java
index 8445eb3..4f1bb31 100644 (file)
--- a/src/edu/berkeley/sbp/chr/CharTopology.java
+++ b/src/edu/berkeley/sbp/chr/CharTopology.java
@@ -1,3 +1,5 @@
+// Copyright 2006-2007 all rights reserved; see LICENSE file for BSD-style license
+
 package edu.berkeley.sbp.chr;
 import edu.berkeley.sbp.*;
 import edu.berkeley.sbp.misc.*;
@@ -35,6 +37,10 @@ public class CharTopology extends IntegerTopology<Character> implements Functor<
         return sb.toString();
     }
 
-    private String esc(char c) { return StringUtil.escapify(c+"", "[]-~\\\"\'\n\r"); }
+    private String esc(char c) {
+        if (c==CharAtom.left) return ">>";
+        if (c==CharAtom.right) return "<<";
+        return StringUtil.escapify(c+"", "[]-~\\\"\'\n\r");
+    }
 
 }