X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2FRepeat.java;h=3e9b2b6c7fe8f949db881e8918ea94ad3246c584;hp=48ac386b44d5a5e364e64995ab3d607468cbb877;hb=242a8711e98cbd3ed6d05271bf910fde38e9be9a;hpb=87f214f3da9f43c3ab93923313845c372f9a96be

diff --git a/src/edu/berkeley/sbp/Repeat.java b/src/edu/berkeley/sbp/Repeat.java
index 48ac386..3e9b2b6 100644
--- a/src/edu/berkeley/sbp/Repeat.java
+++ b/src/edu/berkeley/sbp/Repeat.java
@@ -20,18 +20,27 @@ public class Repeat extends Union {
     public  static Repeat many1(Element e)              { return new Repeat(e, false, true); }
     /** repeat one or more times, separated by <tt>sep</tt> */
     public  static Repeat many1(Element e, Element sep) { return new Repeat(e, false, true, sep); }
-    public  static Maximal maximal(Element e)           { return new Maximal(e); }
+
+    /** repeat zero or more times, matching a maximal sequence of atoms */
+    public  static Repeat maximal0(Element e)              { return new Repeat(e, true, true, null, true); }
+    /** repeat one or more times, matching a maximal sequence of atoms */
+    public  static Repeat maximal1(Element e)              { return new Repeat(e, false, true, null, true); }
+    /** repeat one or more times, separated by <tt>sep</tt>, matching a maximal sequence of atoms */
+    public  static Repeat maximal1(Element e, Element sep) { return new Repeat(e, false, true, sep, true); }
 
     // Instance //////////////////////////////////////////////////////////////////////////////
     
     final boolean zeroOkay, manyOkay;
     final Element e;
     final Element separator;
+    final boolean maximal;
 
     Repeat(final Element e, boolean zeroOkay, boolean manyOkay) { this(e, zeroOkay, manyOkay, null); }
-    Repeat(final Element e, boolean zeroOkay, boolean manyOkay, Element separator) {
+    Repeat(final Element e, boolean zeroOkay, boolean manyOkay, Element separator) { this(e, zeroOkay, manyOkay, separator, false); }
+    Repeat(final Element e, boolean zeroOkay, boolean manyOkay, final Element separator, boolean maximal) {
         super(e+(!manyOkay ? "?" : (zeroOkay ? "*" : "+"))+(separator==null?"":("/"+separator.toString())), true);
         this.e = e;
+        this.maximal = maximal;
         this.zeroOkay = zeroOkay;
         this.manyOkay = manyOkay;
         this.separator = separator;
@@ -47,21 +56,6 @@ public class Repeat extends Union {
                 add(new Sequence.Unwrap(new Element[] { e, this.separator, Repeat.this }, new boolean[] { false, true, false }, null, null));
             }
         }
-    }
-
-    static class MaximalSequence extends Sequence.Singleton {
-        private final Element e;
-        public String toString() { return e+"@"; }
-        public Topology noFollow() { return e.toAtom(); }
-        public MaximalSequence(Element e) {
-            super(e, null, null);
-            this.e = e;
-        }
-    }
-    static class Maximal extends Union {
-        public Maximal(final Element e) {
-            super(e+"+", true);
-            add(new MaximalSequence(e));
-        }
+        if (maximal) for(Sequence s : this) s.noFollow = separator==null ? e : separator;
     }
 }