X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2Fmisc%2FMetaGrammar.java;h=bdb80967ec27973363b4e9bc539165cbae1ca991;hp=041e561bbc9a2e54e2a2153b38f9c0faa5f4a7b5;hb=fa858dc4acddd3e32126ff2558e0860315a84758;hpb=cbf78b1b452c393c8c76c91fa6515c64525b56d8

diff --git a/src/edu/berkeley/sbp/misc/MetaGrammar.java b/src/edu/berkeley/sbp/misc/MetaGrammar.java
index 041e561..bdb8096 100644
--- a/src/edu/berkeley/sbp/misc/MetaGrammar.java
+++ b/src/edu/berkeley/sbp/misc/MetaGrammar.java
@@ -7,6 +7,22 @@ import java.io.*;
 
 public class MetaGrammar extends StringWalker {
 
+    /** an atom which tracks the possible tokenset of some element, provided that element can only match single-token sequences */
+    static class Infer<T extends Input> extends Atom<T> {
+        private final Element e;
+        public Infer(Element e) { this.e = e; }
+        public Topology<T> top() { return (Topology<T>)toAtom(e); }
+        public String toString() { return e.toString(); }
+    }
+
+    /** an atom which tracks the inverse of some other atom */
+    static class Invert<T extends Input> extends Atom<T> {
+        private final Atom<T> a;
+        public Invert(Atom<T> a) { this.a = a; }
+        public Topology<T> top() { return a.complement(); }
+        public String toString() { return "~"+a; }
+    }
+
     public static class Hack<T extends Input> extends Atom<T> {
         private final Atom<T> a;
         static final Topology leftright = CharRange.rightBrace.union(CharRange.leftBrace);
@@ -103,6 +119,9 @@ public class MetaGrammar extends StringWalker {
         return ret;
     }
 
+    // hack, this doens't really work if you're nesting
+    HashSet<Element> keep = new HashSet<Element>();
+
     public Sequence sequence(Object o, boolean lame) {
         return new PreSequence((Element[])Reflection.lub((Object[])o), null).buildSequence(null, lame, false);
     }
@@ -112,16 +131,17 @@ public class MetaGrammar extends StringWalker {
         if      ("\\n".equals(head)) return new Character('\n');
         else if ("\\r".equals(head)) return new Character('\r');
         else if ("grammar".equals(head)) { for(Tree<String> t : tree.children()) walk(t); return this; }
-        else if ("*".equals(head))   return Repeat.many0((Element)walk(tree.child(0)));
-        else if ("+".equals(head))   return Repeat.many1((Element)walk(tree.child(0)));
-        else if ("+/".equals(head))  return Repeat.many1((Element)walk(tree.child(0)), (Element)walk(tree.child(1)));
-        else if ("*/".equals(head))  return Repeat.many0((Element)walk(tree.child(0)), (Element)walk(tree.child(1)));
-        else if ("++/".equals(head)) return Repeat.maximal1((Element)walk(tree.child(0)), (Element)walk(tree.child(1)));
-        else if ("**".equals(head))  return Repeat.maximal0((Element)walk(tree.child(0)));
-        else if ("++".equals(head))  return Repeat.maximal1((Element)walk(tree.child(0)));
-        else if ("?".equals(head))   return Repeat.maybe((Element)walk(tree.child(0)));
+        else if ("*".equals(head))   return Sequence.many0((Element)walk(tree.child(0)), repeatTag());
+        else if ("+".equals(head))   return Sequence.many1((Element)walk(tree.child(0)), repeatTag());
+        else if ("+/".equals(head))  return Sequence.many1((Element)walk(tree.child(0)), (Element)walk(tree.child(1)), repeatTag());
+        else if ("*/".equals(head))  return Sequence.many0((Element)walk(tree.child(0)), (Element)walk(tree.child(1)), repeatTag());
+        else if ("++/".equals(head)) return Sequence.maximal1((Element)walk(tree.child(0)), (Element)walk(tree.child(1)), repeatTag());
+        else if ("**".equals(head))  return Sequence.maximal0((Element)walk(tree.child(0)), repeatTag());
+        else if ("++".equals(head))  return Sequence.maximal1((Element)walk(tree.child(0)), repeatTag());
+        else if ("?".equals(head))   return Sequence.maybe((Element)walk(tree.child(0)), repeatTag());
         else if ("!".equals(head))   { Element e = (Element)walk(tree.child(0)); dropAll.add(e); return e; }
         else if ("&".equals(head))   return ((Sequence)walk(tree,0)).and(sequence(walk(tree, 1), true));
+        else if ("and".equals(head)) return ((Sequence)walk(tree,0)).and(sequence(walk(tree, 1), true));
         else if ("&~".equals(head))  return ((Sequence)walk(tree,0)).not(sequence(walk(tree, 1), true));
         else if ("epsilon".equals(head)) return Union.epsilon;
         else if ("()".equals(head)) return Union.epsilon;
@@ -132,26 +152,40 @@ public class MetaGrammar extends StringWalker {
             carets.put(ret, s);
             dropAll.add(ret);
             return ret;
-        }
-        else if ("psx".equals(head)) return ((PreSequence)walk(tree, 0)).buildSequence();
+            /*
+        } else if ("^^".equals(head)) {
+            return new Keep(walk(tree,0));
+            */
+        } else if ("psx".equals(head)) return ((PreSequence)walk(tree, 0)).buildSequence();
         else if ("nonTerminal".equals(head)) return getNonTerminal(string(tree.child(0)));
-        else if ("::=".equals(head)) return nonTerminal(string(tree.child(0)), (Sequence[][])walk(tree, 1), false, false);
-        else if ("(".equals(head)) return buildUnion((Sequence[][])walk(tree, 0));
+        else if ("::=".equals(head)) return nonTerminal(string(tree.child(0)), (Sequence[][])Reflection.lub(walk(tree, 1)), false, false);
+        else if ("=".equals(head)) return nonTerminal(string(tree.child(0)), (Sequence[][])Reflection.lub(walk(tree, 1)), false, false);
+        else if ("(".equals(head)) return buildUnion((Sequence[][])Reflection.lub(walk(tree, 0)));
         else if ("literal".equals(head)) { Element ret = string(string(tree.child(0))); dropAll.add(ret); return ret; }
         else if ("-".equals(head)) return new Range(walk(tree, 0).toString().charAt(0), walk(tree,1).toString().charAt(0));
         else if ("range".equals(head)) return new Range(walk(tree, 0).toString().charAt(0), walk(tree,0).toString().charAt(0));
         else if ("gram".equals(head)) return walk(tree, 0);
+        else if ("psy".equals(head)) return (PreSequence)walk(tree, 0);
+        else if ("->".equals(head)) { PreSequence p = (PreSequence)walk(tree, 0); p.noFollow = (Element)walk(tree, 1); return p; }
+        else if ("/".equals(head)) return ((PreSequence)walk(tree, 0)).sparse((Element)walk(tree, 1));
+        else if (" /".equals(head)) return ((PreSequence)walk(tree, 0)).sparse((Element)walk(tree, 1));
+        else if ("~".equals(head)) return new Hack(new Invert(new Infer((Element)walk(tree, 0))));
+        else if ("ps".equals(head)) return new PreSequence((Object[])walk(tree,0), null);
+        else if (":".equals(head)) {
+            String s = string(tree.child(0));
+            return new Keep(s,walk(tree,1));
+        } else if ("::".equals(head)) {
+            PreSequence p = (PreSequence)walk(tree, 1);
+            String s = string(tree.child(0));
+            if (s.equals("[]")) p.unwrap = true;
+            else p.tag = convertLabel(s);
+            return p;
+        }
         else if ("=>".equals(head)) {
             PreSequence p = (PreSequence)walk(tree, 0);
             p.tag = string(tree.child(1));
             return p;
         }
-        else if ("psy".equals(head)) return (PreSequence)walk(tree, 0);
-        else if ("->".equals(head)) { PreSequence p = (PreSequence)walk(tree, 0); p.noFollow = (Element)walk(tree, 1); return p; }
-        else if ("/".equals(head)) return ((PreSequence)walk(tree, 0)).sparse((Element)walk(tree, 1));
-        else if ("~".equals(head)) return new Hack(new Atom.Invert(new Atom.Infer((Element)walk(tree, 0))));
-        else if ("ps".equals(head)) return new PreSequence((Element[])walk(tree,0));
-        else if (":".equals(head)) return walk(tree,1);
         else if ("[".equals(head)) {
             Range[] rr = (Range[])walk(tree, 0);
             Range.Set ret = new Range.Set();
@@ -161,6 +195,15 @@ public class MetaGrammar extends StringWalker {
         else return super.walk(tree);
     }
 
+    static class Keep {
+        public final String label;
+        public final Object o;
+        public Keep(String label, Object o) { this.label = label; this.o = o; }
+    }
+
+    public Object convertLabel(String label) { return label; }
+    public Object repeatTag() { return null; }
+
     public Object walk(String tag, Object[] argo) {
         if (argo.length==0) return super.walk(tag, argo);
         if (argo==null) return tag;
@@ -178,7 +221,7 @@ public class MetaGrammar extends StringWalker {
         public Element noFollow = null;
         public final HashSet<Sequence> and  = new HashSet<Sequence>();
         public final HashSet<Sequence> not  = new HashSet<Sequence>();
-        public /*final*/ String tag;
+        public /*final*/ Object tag;
         public final Object[] o;
 
         public PreSequence sparse(Object e) {
@@ -213,8 +256,8 @@ public class MetaGrammar extends StringWalker {
         boolean[] drops = null;
         public PreSequence(Object o) { this(new Object[] { o }, null); }
         public PreSequence(Object[] o) { this(o, null); }
-        public PreSequence(Object[] o, String tag) { this(o, tag, null); }
-        public PreSequence(Object[] o, String tag, boolean[] drops) {
+        public PreSequence(Object[] o, Object tag) { this(o, tag, null); }
+        public PreSequence(Object[] o, Object tag, boolean[] drops) {
             this.o = o;
             this.tag = tag;
             this.drops = drops==null ? new boolean[o.length] : drops;
@@ -229,7 +272,7 @@ public class MetaGrammar extends StringWalker {
         public boolean unwrap = false;
         public Sequence buildSequence() { return buildSequence(null, false, false); }
         public Sequence buildSequence(Union u) { return buildSequence(u, false, false); }
-        public Sequence buildSequence(Union u, boolean lame, String tag) {
+        public Sequence buildSequence(Union u, boolean lame, Object tag) {
             this.tag = tag;
             return buildSequence(u, lame, false);
         }
@@ -242,13 +285,25 @@ public class MetaGrammar extends StringWalker {
             }
             HashSet<Sequence> set = new HashSet<Sequence>();
             Element[] o2 = o==null ? new Element[0] : new Element[o.length];
+            Object[] labels = new Object[drops.length];
             int nonDrop = 0;
+            boolean keeping = false;
             if (o != null) {
                 int j = 0;
                 for(int i=0; i<o.length; i++) {
                     Object oi = o[i];
-                    if (oi==SELF)                    o2[j] = u.new Subset("(("+u+"))", set);
-                    else                             o2[j] = (Element)oi;
+                    if (oi instanceof Keep)    {
+                        if (!unwrap && tag==null) throw new Error("cannot have labels in an untagged sequence: " + ((Keep)oi).label);
+                        if (!keeping) { for(int k=0; k<i; k++) drops[k]=true; }
+                        drops[i] = false;
+                        keeping = true;
+                        labels[i] = ((Keep)oi).label;
+                        oi = ((Keep)oi).o;
+                    } else {
+                        if (keeping) drops[i] = true;
+                    }
+                    /*if (oi==SELF)                    o2[j] = u.new Subset("(("+u+"))", set);
+                      else*/                             o2[j] = (Element)oi;
 
                     if (MetaGrammar.dropAll.contains(o2[j])) drops[j] = true;
                     nonDrop += drops[j] ? 0 : 1;
@@ -261,8 +316,8 @@ public class MetaGrammar extends StringWalker {
             Element[] expansion = o2;
             Sequence ret = null;
             if (dropAll || lame) ret = Sequence.drop(expansion, lame);
-            else if (unwrap)    ret = new Sequence.Unwrap(expansion, drops);
-            else if (tag!=null) ret = Sequence.rewritingSequence(tag, expansion, drops);
+            else if (unwrap)    ret = Sequence.unwrap(expansion, repeatTag(), drops);
+            else if (keeping || tag!=null) ret = Sequence.rewritingSequence(tag, expansion, labels, drops);
             else {
                 int idx = -1;
                 for(int i=0; i<expansion.length; i++)
@@ -275,7 +330,7 @@ public class MetaGrammar extends StringWalker {
             for(Sequence s : and) ret = ret.and(s);
             for(Sequence s : not) ret = ret.not(s);
             set.add(ret);
-            if (this.noFollow != null) ret.noFollow = new Atom.Invert(new Atom.Infer(this.noFollow));
+            if (this.noFollow != null) ret.noFollow = new Invert(new Infer(this.noFollow));
             return ret;
         }
     }
@@ -421,31 +476,85 @@ public class MetaGrammar extends StringWalker {
 
 
 
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         // DO NOT EDIT STUFF BELOW: IT IS AUTOMATICALLY GENERATED
-new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "grammar", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "!", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
+new edu.berkeley.sbp.Tree(null, "grammar", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "!", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "G", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "g", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "g", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "G", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { })})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "G", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { })})})})})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "!", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "G", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "+/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "N", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "+/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "N", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "T", new edu.berkeley.sbp.Tree[] { }),
@@ -457,15 +566,8 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "g", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { })})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "N", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "N", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "T", new edu.berkeley.sbp.Tree[] { }),
@@ -476,30 +578,27 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "W", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, ":", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, ":", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { })})}),
+        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "R", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "H", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { })})})})}),
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "R", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "R", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "H", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "+/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "+/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "C", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "j", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "+/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "+/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "q", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})}),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "!", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})}),
         new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "|", new edu.berkeley.sbp.Tree[] { })})}),
@@ -510,79 +609,7 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, ">", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "!", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})})})})})})})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "C", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "j", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "q", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})})})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "q", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "&", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "E", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "q", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "&", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "~", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "E", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "E", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "*/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "N", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "E", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "E", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
@@ -593,7 +620,7 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "*/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "P", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "P", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
@@ -604,22 +631,29 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "N", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "E", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "p", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "E", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "p", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "P", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "Q", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})})}),
+        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "W", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, ":", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, ":", new edu.berkeley.sbp.Tree[] { })})}),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "P", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
@@ -629,14 +663,10 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "!", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "p", new edu.berkeley.sbp.Tree[] { })})})}),
-        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "!", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})})})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "P", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})})}),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})}),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "P", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
@@ -647,8 +677,7 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "-", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, ">", new edu.berkeley.sbp.Tree[] { })})}),
+        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})})}),
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
@@ -663,25 +692,12 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "-", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, ">", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "[", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "]", new edu.berkeley.sbp.Tree[] { })})})})})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, ")", new edu.berkeley.sbp.Tree[] { })})})})})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "Q", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})})})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})})}),
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "q", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
@@ -689,7 +705,10 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "P", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "p", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "x", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "P", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
@@ -699,11 +718,47 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "p", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "x", new edu.berkeley.sbp.Tree[] { })})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "q", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})}),
+        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "&", new edu.berkeley.sbp.Tree[] { })})}),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "E", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
+        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "q", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})}),
+        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "&", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "~", new edu.berkeley.sbp.Tree[] { })})}),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "E", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "m", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { })}),
         new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "~", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "[", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "range", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "-", new edu.berkeley.sbp.Tree[] { })}),
         new edu.berkeley.sbp.Tree(null, "range", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "]", new edu.berkeley.sbp.Tree[] { })}),
@@ -715,29 +770,37 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "p", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "R", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "R", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "g", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "g", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})}),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { })})})})})})}),
         new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "-", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { })})})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "Q", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})})}),
+        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "W", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, ":", new edu.berkeley.sbp.Tree[] { })})}),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})})})})}),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "T", new edu.berkeley.sbp.Tree[] { }),
@@ -747,24 +810,31 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "i", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { })})})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "Q", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "W", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "i", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { })})})}),
+        new edu.berkeley.sbp.Tree(null, "l", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "Q", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})})})}),
         new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, ")", new edu.berkeley.sbp.Tree[] { })})})})})}),
         new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "{", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "P", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "S", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "q", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
@@ -838,17 +908,15 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "?", new edu.berkeley.sbp.Tree[] { })})})})}),
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { })})}),
+        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "Q", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
+        new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})})}),
         new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "W", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})}),
@@ -863,8 +931,12 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
         new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "~", new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})})})})}),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "^", new edu.berkeley.sbp.Tree[] { })})}),
+        new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { })})})})})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "W", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })}),
@@ -875,7 +947,7 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "-", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "0", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "9", new edu.berkeley.sbp.Tree[] { })}),
         new edu.berkeley.sbp.Tree(null, "range", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "_", new edu.berkeley.sbp.Tree[] { })})})})})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "Q", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "Q", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "u", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "o", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "t", new edu.berkeley.sbp.Tree[] { }),
@@ -892,44 +964,46 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })})})})})})})})})})})})})})})}),
         new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\"", new edu.berkeley.sbp.Tree[] { })})})})})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\"", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "\"", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, "", new edu.berkeley.sbp.Tree[] { })})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\"", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "\"", new edu.berkeley.sbp.Tree[] { })})})})})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "c", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "a", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "p", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "e", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "d", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\\", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\n", new edu.berkeley.sbp.Tree[] { })})})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\\", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\r", new edu.berkeley.sbp.Tree[] { })})})}),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\n", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\\", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { })})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\r", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\\", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { })})})})})})}),
         new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\\", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "~", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "[", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "range", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "n", new edu.berkeley.sbp.Tree[] { })}),
         new edu.berkeley.sbp.Tree(null, "range", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { })})})})})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { })}),
         new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, " ", new edu.berkeley.sbp.Tree[] { })})})})})}),
         new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\n", new edu.berkeley.sbp.Tree[] { })})})})})}),
         new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\r", new edu.berkeley.sbp.Tree[] { })})})})})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "**", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { })})})})})}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { })})}),
-        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "=>", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "**", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { })})})}),
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, ")", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "**", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { })})})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "::", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "(", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, ")", new edu.berkeley.sbp.Tree[] { })}),
+        new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "**", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { })})})}),
         new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "/", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "*", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "~", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "[", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "range", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\n", new edu.berkeley.sbp.Tree[] { })})})})})}),
         new edu.berkeley.sbp.Tree(null, "literal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "\n", new edu.berkeley.sbp.Tree[] { })})}),
         new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
-        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { })})})})})}),
-        new edu.berkeley.sbp.Tree(null, "::=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
+        new edu.berkeley.sbp.Tree(null, "s", new edu.berkeley.sbp.Tree[] { })})})})})})})})})}),
+        new edu.berkeley.sbp.Tree(null, "=", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { }),
         new edu.berkeley.sbp.Tree(null, "p", new edu.berkeley.sbp.Tree[] { })}),
-        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "++", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { })})})})})})})})})})})})})
+        new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "psx", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "ps", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "++", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "nonTerminal", new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, null, new edu.berkeley.sbp.Tree[] { new edu.berkeley.sbp.Tree(null, "w", new edu.berkeley.sbp.Tree[] { })})})})})})})})})})})})
         // DO NOT EDIT STUFF ABOVE: IT IS AUTOMATICALLY GENERATED
         ;
 }
@@ -1065,3 +1139,52 @@ new edu.berkeley.sbp.Tree(null, "gram", new edu.berkeley.sbp.Tree[] { new edu.be
 
 
 
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