X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2Fchr%2FCharAtom.java;h=c729b540ee2ae7cd67cb3353fb768093c40f71ab;hb=61539aaf02d0537fd1df08b5d5bd03189992cf1e;hp=920381b58f0742e5af4a601c01840b7d7d9c50a2;hpb=4378d20232cd88fb2a57edc5a5114f952ab58a18;p=sbp.git

diff --git a/src/edu/berkeley/sbp/chr/CharAtom.java b/src/edu/berkeley/sbp/chr/CharAtom.java
index 920381b..c729b54 100644
--- a/src/edu/berkeley/sbp/chr/CharAtom.java
+++ b/src/edu/berkeley/sbp/chr/CharAtom.java
@@ -1,3 +1,5 @@
+// Copyright 2006 all rights reserved; see LICENSE file for BSD-style license
+
 package edu.berkeley.sbp.chr;
 import java.io.*;
 import java.util.*;
@@ -21,9 +23,9 @@ public class CharAtom extends Atom<Character> {
 
     public static final char left       = (char)9998;
     public static final char right      = (char)9999;
-    public static final Atom leftBrace  = new CharAtom(left,left)   { public String toString() { return "[{]"; } };
-    public static final Atom rightBrace = new CharAtom(right,right) { public String toString() { return "[}]"; } };
-    public static final Atom braces     = new CharAtom(left,right)   { public String toString() { return "[{}]"; } };
+    public static final Atom leftBrace  = new CharAtom(left,left)   { public String toString() { return "\\{"; } };
+    public static final Atom rightBrace = new CharAtom(right,right) { public String toString() { return "\\}"; } };
+    public static final Atom braces     = new CharAtom(left,right)   { public String toString() { return "[\\{\\}]"; } };
 
     public static Atom set(Range.Set r) { return new CharAtom(new CharTopology(r)); }
     public String toString() { return t.toString(); }
@@ -43,14 +45,14 @@ public class CharAtom extends Atom<Character> {
                     public String toString() { return escapified; } };
             Element[] refs = new Element[s.length()];
             for(int i=0; i<refs.length; i++) refs[i] = new CharAtom(s.charAt(i));
-            ret2.add(Sequence.newConstantSequence(refs, s));
+            ret2.add(Sequence.create(refs, s));
             ret = ret2;
         }
         return ret;
     }
 
     private static Union epsilon = new Union("()");
-    static { epsilon.add(Sequence.newEmptySequence()); }
+    static { epsilon.add(Sequence.create()); }
 
     public Topology<Atom<Character>>       unwrap() { return this; }
     public Topology<Atom<Character>>       empty()  { return new CharAtom(); }