}
public static class NonTerminal extends Un {
+ public boolean rep;
public String name = null;
- public @bind NonTerminal(@bind.arg String name,
- @bind.arg Seq[][] sequences) {
+ public @bind NonTerminal(@bind.arg String name, @bind.arg Seq[][] sequences) { this(name, sequences, false); }
+ public NonTerminal(String name, Seq[][] sequences, boolean rep) {
this.name = name;
this.sequences = sequences;
+ this.rep = rep;
}
public Element build(MetaGrammar.Context cx) { return cx.get(name); }
}
+ public static @bind.as("=") NonTerminal go(@bind.arg String name, @bind.arg Seq[][] sequences) { return new NonTerminal(name, sequences, true); }
public static class AnonUn extends Un {
public @bind.as("(") AnonUn(Seq[][] sequences) {
return ret;
}
}
- public static @bind.as("&") Seq and(Seq s, El[] elements) { return s.and(seq(elements)); }
- public static @bind.as("&~") Seq andnot(Seq s, El[] elements) { return s.andnot(seq(elements)); }
+ public static @bind.as("&") Seq and2(Seq s, Seq a) { return s.and(a); }
+ public static @bind.as("&~") Seq andnot2(Seq s, Seq a) { return s.andnot(a); }
public static @bind.as("->") Seq arrow(Seq s, El e) { return s.follow(e); }
public static @bind.as("::") Seq tag(String tagname, Seq s) { return s.tag(tagname); }
public static @bind.as("/") Seq slash(Seq s, El e) { return s.separate(e); }
- public static @bind.as("ps") Seq seq(El[] elements) { return new Seq(elements); }
+ public static Seq seq(El[] elements) { return new Seq(elements); }
+ public static @bind.as("Elements") Seq seq2(El[] elements) { return new Seq(elements); }
public static @bind.as Seq psx(Seq s) { return s; }
public static @bind.as(":") El colon(String s, El e) { return new Label(s, e); }
public static @bind.as(")") void close(String foo) { throw new Error("not supported"); }
public static @bind.as("{") class XTree extends El {
public @bind.arg Seq body;
public Element build(MetaGrammar.Context cx) {
- throw new Error();
+ Union u = new Union();
+ Sequence s = body.build(cx, u, false);
+ Union u2 = new Union();
+ u2.add(Sequence.singleton(new Element[] {
+ CharRange.leftBrace,
+ cx.get("ws"),
+ u,
+ cx.get("ws"),
+ CharRange.rightBrace
+ }, 2));
+ return u2;
}
}
//public static @bind.as("(") El subexpression(Seq[][] rhs) { return new NonTerminal(rhs); }
- public static @bind.as("Word") String word(String s) { return s; }
- public static @bind.as("Quoted") String quoted(String s) { return s; }
- public static @bind.as("escaped") String c(char c) { return c+""; }
- public static @bind.as("\"\"") String emptystring() { return ""; }
- public static @bind.as("\n") String retur() { return "\n"; }
- public static @bind.as("\r") String lf() { return "\r"; }
+ public static @bind.as("Word") String word(String s) { return s; }
+ public static @bind.as("Quoted") String quoted(String s) { return s; }
+ public static @bind.as("escaped") String c(char c) { return c+""; }
+ public static @bind.as("EmptyString") String emptystring() { return ""; }
+ public static @bind.as("\n") String retur() { return "\n"; }
+ public static @bind.as("\r") String lf() { return "\r"; }
static Atom infer(Element e) { return infer((Topology<Character>)Atom.toAtom(e)); }
static Atom infer(Topology<Character> t) { return new CharRange(new CharTopology(t)); }