X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2Ftib%2FTib.java;h=9b4b97489a37d1577e9be97867398ee9ef13bb82;hp=eabc9eea863f799604972b4a0cb3d1f135979988;hb=e4b4b7b0da38d93fc9160b0058a81c1fc7f6773b;hpb=6bee7f519f499a92a92a459fd2c903d85de0759c

diff --git a/src/edu/berkeley/sbp/tib/Tib.java b/src/edu/berkeley/sbp/tib/Tib.java
index eabc9ee..9b4b974 100644
--- a/src/edu/berkeley/sbp/tib/Tib.java
+++ b/src/edu/berkeley/sbp/tib/Tib.java
@@ -296,13 +296,17 @@ public class Tib implements Token.Stream<CharToken> {
         public Object walk(Tree<String> tree) {
             String head = tree.head();
             if (tree.numChildren()==0) return super.walk(tree);
-            if ("{".equals(head))
-                return nonTerminal("braced"+(anon++),
+            if ("{".equals(head)) {
+                String s = "braced"+(anon++);
+                Union u = nonTerminal(s);
+                Union u2 = ((PreSequence)walk(tree, 0)).sparse(ws).buildUnion();
+                u2.add(Sequence.singleton(new Element[] { u }, 0, null, null));
+                return nonTerminal(s,
                                    new PreSequence[][] {
                                        new PreSequence[] {
                                            new PreSequence(new Element[] { CharToken.leftBrace,
                                                                            ws,
-                                                                           ((PreSequence)walk(tree, 0)).sparse(ws).buildUnion(),
+                                                                           u2,
                                                                            ws,
                                                                            CharToken.rightBrace
                                            })
@@ -310,6 +314,7 @@ public class Tib implements Token.Stream<CharToken> {
                                    },
                                    false,
                                    false);
+            }
             return super.walk(tree);
         }
     }