1 package edu.berkeley.sbp.meta;
2 import edu.berkeley.sbp.util.*;
3 import edu.berkeley.sbp.*;
4 import edu.berkeley.sbp.chr.*;
5 import edu.berkeley.sbp.misc.*;
6 import edu.berkeley.sbp.bind.*;
8 import java.lang.annotation.*;
9 import java.lang.reflect.*;
12 public class MetaGrammar {
14 public static void main(String[] args) throws Exception {
15 if (args.length != 2) {
16 System.err.println("usage: java " + MetaGrammar.class.getName() + " grammarfile.g com.yourdomain.package.ClassName");
19 String className = args[1].substring(args[1].lastIndexOf('.')+1);
20 String packageName = args[1].substring(0, args[1].lastIndexOf('.'));
21 String fileName = packageName.replace('.', '/') + "/" + className + ".java";
23 BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(fileName)));
24 StringBuffer out = new StringBuffer();
27 for(String s = br.readLine(); s != null; s = br.readLine()) {
28 if (s.indexOf("DO NOT EDIT STUFF BELOW: IT IS AUTOMATICALLY GENERATED") != -1 && s.indexOf("\"")==-1) skip = true;
29 if (s.indexOf("DO NOT EDIT STUFF ABOVE: IT IS AUTOMATICALLY GENERATED") != -1 && s.indexOf("\"")==-1) break;
30 if (!skip) out.append(s+"\n");
33 out.append("\n // DO NOT EDIT STUFF BELOW: IT IS AUTOMATICALLY GENERATED\n");
35 Tree t = MetaGrammarTree.meta;
36 Union u = MetaGrammar.make(t, "s");
39 System.err.println("== parsing with parsed grammar =================================================================================");
40 t = new CharParser((Union)u).parse(new FileInputStream(args[0])).expand1();
41 System.out.println(t.toPrettyString());
44 out.append("\n // DO NOT EDIT STUFF ABOVE: IT IS AUTOMATICALLY GENERATED\n");
46 for(String s = br.readLine(); s != null; s = br.readLine()) out.append(s+"\n");
49 OutputStream os = new FileOutputStream(fileName);
50 PrintWriter p = new PrintWriter(new OutputStreamWriter(os));
51 p.println(out.toString());
56 public static Union make() { return make(MetaGrammarTree.meta, "s"); }
57 public static Union make(Tree t, String s) { return make(t, s, new AnnotationGrammarBindingResolver(MetaGrammarBindings.class)); }
58 public static Union make(Tree t, String s, GrammarBindingResolver rm) {
59 Tree.TreeFunctor<Object,Object> red = (Tree.TreeFunctor<Object,Object>)t.head();
60 MetaGrammarBindings.GrammarNode g = (MetaGrammarBindings.GrammarNode)red.invoke(t.children());
61 return g.build(s, rm);