X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2Ftib%2FTib.java;h=4805d1e8f543cbf16fcfef674552e391f72e3788;hb=ac3843911c47a601ffd679d2e075b519d3a18d6a;hp=4b4a24793da8664aaac1c32138f94abffeac0690;hpb=e42e16515f4392017a8109922d37dcd0926f915a;p=sbp.git

diff --git a/src/edu/berkeley/sbp/tib/Tib.java b/src/edu/berkeley/sbp/tib/Tib.java
index 4b4a247..4805d1e 100644
--- a/src/edu/berkeley/sbp/tib/Tib.java
+++ b/src/edu/berkeley/sbp/tib/Tib.java
@@ -5,6 +5,7 @@
 package edu.berkeley.sbp.tib;
 import edu.berkeley.sbp.*;
 import edu.berkeley.sbp.misc.*;
+import edu.berkeley.sbp.chr.*;
 import java.util.*;
 import java.io.*;
 
@@ -23,7 +24,7 @@ import java.io.*;
  *   experimentation with the TIB spec.  Once the spec is finalized it
  *   should probably be rewritten.
  */
-public class Tib implements Token.Stream<Character> {
+public class Tib implements Input<Character> {
 
     public Tib(String s) throws IOException { this(new StringReader(s)); }
     public Tib(Reader r) throws IOException { this(new BufferedReader(r)); }
@@ -41,7 +42,7 @@ public class Tib implements Token.Stream<Character> {
 
     int _row = 1;
     int _col = 0;
-    public Token.Location getLocation() { return new CartesianInput.Location(_row, _col); }
+    public Input.Location getLocation() { return new Input.Location.Cartesian(_col, _row); }
     private BufferedReader br;
 
     char left = CharRange.left;
@@ -52,17 +53,17 @@ public class Tib implements Token.Stream<Character> {
     boolean indenting = true;
     int indentation = 0;
     private ArrayList<Integer> istack = new ArrayList<Integer>();
-    public Character next(int numstates, int resets, int waits) throws IOException {
-        Character ret = nextc(numstates, resets);
-        if      (ret==left)  System.out.print("\033[31m{\033[0m");
+    public Character next() throws IOException {
+        Character ret = nextc();
+        if      (ret==null) return null;
+        else if (ret==left)  System.out.print("\033[31m{\033[0m");
         else if (ret==right) System.out.print("\033[31m}\033[0m");
-        else if (ret==null) return null;
         else System.out.print(ret);
         return ret;
     }
 
     Character waitingBrace = null;
-    public Character nextc(int numstates, int resets) throws IOException {
+    public Character nextc() throws IOException {
         char c;
         if (waitingBrace != null) {
             Character ret = waitingBrace;
@@ -82,12 +83,12 @@ public class Tib implements Token.Stream<Character> {
                 return null;
             }
             c = (char)i;
+            if (c=='\n') { _row++; _col=0; }
+            else         _col++;
         }
-        if (c=='\n') { _row++; _col=0; }
-        else         _col++;
         if (indenting) {
             if (c==' ') { indentation++; return done(c); }
-            if (c=='\n') { indentation = 0; if (blank) return nextc(numstates, resets); blank = true; waiting = true; waitingChar='\n'; return '\n'; }
+            if (c=='\n') { indentation = 0; if (blank) return nextc(); blank = true; waiting = true; waitingChar='\n'; return '\n'; }
             int last = istack.size()==0 ? -1 : istack.get(istack.size()-1);
             if (indentation==last) {
                 if (blank) {
@@ -134,31 +135,27 @@ public class Tib implements Token.Stream<Character> {
 
     // Grammar //////////////////////////////////////////////////////////////////////////////
 
-    public static class Grammar extends MetaGrammar {
+    public static class Grammar extends ReflectiveGrammar {
         private int anon = 0;
-        private final Element ws = Repeat.maximal0(nonTerminal("w"));
-        public Grammar() { dropAll.add(ws); }
+        private final Element ws = Sequence.maximal0(getNonTerminal("w"));
+        public Grammar(Class c) { super(c); dropAll.add(ws); }
         public Object walk(Tree<String> tree) {
             String head = tree.head();
             if (tree.numChildren()==0) return super.walk(tree);
             if ("{".equals(head)) {
-                String s = "braced"+(anon++);
-                Union u = nonTerminal(s);
+                Union u = new Union("???");
                 Union u2 = ((PreSequence)walk(tree, 0)).sparse(ws).buildUnion();
-                u2.add(Sequence.singleton(new Element[] { u }, 0, null, null));
-                return nonTerminal(s,
-                                   new PreSequence[][] {
-                                       new PreSequence[] {
-                                           new PreSequence(new Element[] { CharRange.leftBrace,
-                                                                           ws,
-                                                                           u2,
-                                                                           ws,
-                                                                           CharRange.rightBrace
-                                           })
-                                       }
-                                   },
-                                   false,
-                                   false);
+                u2.add(Sequence.singleton(new Element[] { u }, 0));
+                return anonymousNonTerminal(new Sequence[][] {
+                    new Sequence[] {
+                        Sequence.singleton(new Element[] { CharRange.leftBrace,
+                                                           ws,
+                                                           u2,
+                                                           ws,
+                                                           CharRange.rightBrace
+                        }, 2)
+                    }
+                });
             }
             return super.walk(tree);
         }