}
protected Repeat(final Element e, boolean zeroOkay, boolean manyOkay, final Element separator, boolean maximal, Object tag) {
super(e+(!manyOkay ? "?" : (zeroOkay ? (maximal ? "**" : "*") : (maximal ? "++" : "+")))+(separator==null?"":("/"+separator)), true);
- if (maximal && zeroOkay && separator != null)
- throw new RuntimeException("cannot create a maximal repetition of zero or more items with a separator (yet): " + this);
if (zeroOkay) {
add(new Sequence.Constant.Empty());
if (manyOkay) add(new Sequence.Singleton(Sequence.many1(e, separator)));
else
add(new Sequence.Unwrap(new Element[] { e, separator, Repeat.this }, tag, new boolean[] { false, true, false }));
}
- // FIXME: hack!
- if (maximal)
- for(Sequence s : this)
- s.follow = new edu.berkeley.sbp.misc.MetaGrammar.Invert(new edu.berkeley.sbp.misc.MetaGrammar.Infer(separator==null ? e : separator));
}
public static class Maximal extends Repeat {
public Maximal(final Element e, boolean zeroOkay, boolean manyOkay, final Element separator, Object tag) {
super(e, zeroOkay, manyOkay, separator, true, tag);
+ if (zeroOkay && separator != null)
+ throw new RuntimeException("cannot create a maximal repetition of zero or more items with a separator (yet): " + this);
+ for(Sequence s : this)
+ s.follow = new edu.berkeley.sbp.misc.MetaGrammar.Invert(new edu.berkeley.sbp.misc.MetaGrammar.Infer(separator));
+ }
+ public Maximal(final Element e, boolean zeroOkay, boolean manyOkay, Object tag) {
+ super(e, zeroOkay, manyOkay, null, true, tag);
+ for(Sequence s : this)
+ s.follow = new edu.berkeley.sbp.misc.MetaGrammar.Invert(new edu.berkeley.sbp.misc.MetaGrammar.Infer(e));
}
}
public static Repeat many1(Element e, Element sep, Object tag) { return new Repeat(e, false, true, sep, tag); }
/** repeat zero or more times, matching a maximal sequence of atoms */
- public static Repeat maximal0(Element e) { return new Repeat.Maximal(e, true, true, null, null); }
- public static Repeat maximal0(Element e, Object tag) { return new Repeat.Maximal(e, true, true, null, tag); }
+ public static Repeat maximal0(Element e) { return new Repeat.Maximal(e, true, true, null); }
+ public static Repeat maximal0(Element e, Object tag) { return new Repeat.Maximal(e, true, true, tag); }
/** repeat one or more times, matching a maximal sequence of atoms */
- public static Repeat maximal1(Element e) { return new Repeat.Maximal(e, false, true, null, null); }
- public static Repeat maximal1(Element e, Object tag) { return new Repeat.Maximal(e, false, true, null, tag); }
+ public static Repeat maximal1(Element e) { return new Repeat.Maximal(e, false, true, null); }
+ public static Repeat maximal1(Element e, Object tag) { return new Repeat.Maximal(e, false, true, tag); }
/** repeat one or more times, separated by an atom <tt>sep</tt>, matching a maximal sequence */
public static Repeat maximal1(Element e, Element sep) { return new Repeat.Maximal(e, false, true, sep, null); }
public static Repeat maximal1(Element e, Element sep, Object tag) { return new Repeat.Maximal(e, false, true, sep, tag); }
public MetaClause element, separator;
public boolean maximal, zero, many;
public Element build(BuildContext bc) {
- return maximal
- ? new Repeat.Maximal(element.build(bc), zero, many, separator==null?null:separator.build(bc), null)
- : new Repeat(element.build(bc), zero, many, separator==null?null:separator.build(bc), null);
+ return !maximal
+ ? new Repeat(element.build(bc), zero, many, separator==null?null:separator.build(bc), null)
+ : separator==null
+ ? new Repeat.Maximal(element.build(bc), zero, many, null)
+ : new Repeat.Maximal(element.build(bc), zero, many, separator.build(bc), null);
}
public MetaRepeat(MetaClause element, boolean maximal, MetaClause separator, boolean zero, boolean many) {
this.separator = separator;
+
+
// DO NOT EDIT STUFF BELOW: IT IS AUTOMATICALLY GENERATED
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, "G", new edu.berkeley.sbp.Tree[] { }),
new edu.berkeley.sbp.Tree(null, "r", new edu.berkeley.sbp.Tree[] { }),
+
+