checkpoint

[sbp.git] / src / edu / berkeley / sbp / misc / MetaGrammar.java

diff --git a/src/edu/berkeley/sbp/misc/MetaGrammar.java b/src/edu/berkeley/sbp/misc/MetaGrammar.java
index ea9ba28..d03baaf 100644 (file)
--- a/src/edu/berkeley/sbp/misc/MetaGrammar.java
+++ b/src/edu/berkeley/sbp/misc/MetaGrammar.java
@@ -136,20 +136,20 @@ public class MetaGrammar extends ReflectiveWalker {
         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 ("[".equals(head)) return ranges(true, (Range[])walk(tree, 0));
-        else if ("[~".equals(head)) return ranges(false,  (Range[])walk(tree, 0));
+        else if ("[".equals(head) || "[~".equals(head)) {
+            boolean positive = "[".equals(head);
+            Range[] rr = (Range[])walk(tree, 0);
+            Range.Set ret = positive ? new Range.Set() : new Range.Set(new Range(true, true));
+            if (rr != null)
+                for(Range r : rr)
+                    if (positive) ret.add(r);
+                    else          ret.remove(r);
+            return set(ret);
+        }
         else return super.walk(tree);
     }
 
     public Object    gram(Object o, Object g, Object o2) { return g; }
-    public Element   ranges(boolean positive, Range[] rr) {
-        Range.Set ret = positive ? new Range.Set() : new Range.Set(new Range(true, true));
-        if (rr != null)
-            for(Range r : rr)
-                if (positive) ret.add(r);
-                else          ret.remove(r);
-        return set(ret);
-    }
 
     //////////////////////////////////////////////////////////////////////////////