new PreSequence[] {
new PreSequence(new Element[] { leftBrace(),
p.buildUnion(),
- rightBrace() })
+ rightBrace()
+ })
}
},
false,
false);
}
- public PreSequence rewrite(Object[] o) { return new PreSequence(o, null); }
-
- public PreSequence seqx(PreSequence p, String tag) { return _equals__greater_(p, tag); }
- public PreSequence _equals__greater_(PreSequence p, String tag) {
- p.tag = tag;
- return p;
- }
+ public PreSequence _equals__greater_(PreSequence p, String tag) { p.tag = tag; return p; }
public PreSequence ps(Object[] o) { return new PreSequence(o); }
public PreSequence ps2(Object[] o1, String s, Object[] o2) {
public Object _plus__plus_(final Element r) { return Repeat.maximal(Repeat.many1(r)); }
public Element _question_(final Element r) { return Repeat.maybe(r); }
- public MetaGrammar gram(Object o, MetaGrammar g, Object o2) { return g; }
- public MetaGrammar grammar(Object[] o) { return this; }
+ public Object walk(Tree<String> tree) {
+ String head = tree.head();
+ if (tree.numChildren()==0) return super.walk(tree);
+ if ("\\n".equals(head)) return new Character('\n');
+ else if ("\\r".equals(head)) return new Character('\r');
+ else return super.walk(tree);
+ }
+
public MetaGrammar grammar(Object o, Union[] u, Object x) { return this; }
- public char _backslash_n() { return '\n'; }
- public char _backslash_r() { return '\r'; }
+ public Object gram(Object o, Object g, Object o2) { return g; }
+ public MetaGrammar grammar(Object[] o) { return this; }
public Element literal(String s) { Element ret = string(s); dropAll.add(ret); return ret; }
public Range _minus_(char a, char b) { return new Range(a, b); }
public Range range(char a) { return new Range(a, a); }
return set(ret);
}
+ //////////////////////////////////////////////////////////////////////////////
+
public class PreSequence {
public final HashSet<Sequence> and = new HashSet<Sequence>();
public final HashSet<Sequence> not = new HashSet<Sequence>();