added starting point for grammar

Author: pastelHex

src/cup/parser.cup

@@ -34,12 +34,15 @@ terminal        Integer         NUMBER;
 
 /* non terminals */
 non terminal    Integer         expr;
-non terminal                    rel_def,statment_def,statment;
+non terminal                    rel_def,statment_def,statment,program;
+
+start with program;
 
 /* unary operators */
 
 /* grammar */
 
+program         ::= rel_def | statment | expr;
 rel_def         ::= VAR:v1 REL:r VAR:v2 L_BRA statment_def R_BRA    {: System.out.println("znaleziono def relacji\n"); :}
                 ;
 statment_def    ::= VAR:v1 GT VAR:v2                                {: System.out.println("ciało relacji\n"); :}

src/jflex/TestLexer.java~

@@ -4,13 +4,15 @@
  * Text up to the first  is copied verbatim into the created source file.
  * Used for package and import statements. (we don't need any here)
  */
+import java_cup.runtime.Symbol;
+
 
 /**
  * This class is a scanner generated by 
  * <a href="http://www.jflex.de/">JFlex</a> 1.7.0
- * from the specification file <tt>test.flex</tt>
+ * from the specification file <tt>src/jflex/test.flex</tt>
  */
-class TestLexer {
+class TestLexer implements java_cup.runtime.Scanner {
 
   /** This character denotes the end of file */
   public static final int YYEOF = -1;
@@ -36,9 +38,9 @@ class TestLexer {
    * Translates characters to character classes
    */
   private static final String ZZ_CMAP_PACKED = 
-    "\11\0\1\12\1\11\1\0\1\12\1\10\22\0\1\12\11\0\1\3"+
-    "\5\0\1\2\11\13\2\0\1\7\1\0\1\6\2\0\32\4\6\0"+
-    "\10\1\1\14\11\1\1\15\7\1\1\5\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uff94\0";
+    "\11\0\1\13\1\12\1\0\1\13\1\11\22\0\1\13\11\0\1\3"+
+    "\5\0\1\2\11\14\2\0\1\10\1\0\1\7\2\0\32\4\6\0"+
+    "\10\1\1\15\11\1\1\16\7\1\1\5\1\0\1\6\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uffff\0\uff92\0";
 
   /** 
    * Translates characters to character classes
@@ -51,8 +53,8 @@ class TestLexer {
   private static final int [] ZZ_ACTION = zzUnpackAction();
 
   private static final String ZZ_ACTION_PACKED_0 =
-    "\2\0\1\1\1\2\1\1\1\3\1\4\1\5\2\6"+
-    "\1\1\2\2\1\0\1\7\1\10\1\11";
+    "\2\0\1\1\1\2\1\1\1\3\1\4\1\5\1\6"+
+    "\2\7\1\10\2\2\1\0\1\11\1\12";
 
   private static int [] zzUnpackAction() {
     int [] result = new int[17];
@@ -80,9 +82,9 @@ class TestLexer {
   private static final int [] ZZ_ROWMAP = zzUnpackRowMap();
 
   private static final String ZZ_ROWMAP_PACKED_0 =
-    "\0\0\0\16\0\34\0\52\0\70\0\34\0\34\0\34"+
-    "\0\106\0\34\0\124\0\142\0\160\0\176\0\124\0\52"+
-    "\0\34";
+    "\0\0\0\17\0\36\0\55\0\74\0\36\0\36\0\36"+
+    "\0\36\0\113\0\36\0\132\0\151\0\170\0\207\0\55"+
+    "\0\36";
 
   private static int [] zzUnpackRowMap() {
     int [] result = new int[17];
@@ -109,14 +111,14 @@ class TestLexer {
 
   private static final String ZZ_TRANS_PACKED_0 =
     "\1\3\1\4\1\3\1\5\1\3\1\6\1\7\1\10"+
-    "\1\11\2\12\1\13\1\14\1\4\16\3\17\0\1\4"+
-    "\1\15\10\0\1\15\2\4\4\0\1\16\22\0\1\12"+
-    "\6\0\1\17\10\0\1\17\3\0\1\4\1\15\10\0"+
-    "\1\15\1\4\1\20\2\0\1\15\10\0\1\15\5\0"+
-    "\1\21\1\16\11\0";
+    "\1\11\1\12\2\13\1\14\1\15\1\4\17\3\20\0"+
+    "\1\4\1\16\11\0\1\16\2\4\4\0\1\17\24\0"+
+    "\1\13\6\0\1\14\11\0\1\14\3\0\1\4\1\16"+
+    "\11\0\1\16\1\4\1\20\2\0\1\16\11\0\1\16"+
+    "\5\0\1\21\1\17\12\0";
 
   private static int [] zzUnpackTrans() {
-    int [] result = new int[140];
+    int [] result = new int[150];
     int offset = 0;
     offset = zzUnpackTrans(ZZ_TRANS_PACKED_0, offset, result);
     return result;
@@ -154,8 +156,8 @@ class TestLexer {
   private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute();
 
   private static final String ZZ_ATTRIBUTE_PACKED_0 =
-    "\2\0\1\11\2\1\3\11\1\1\1\11\3\1\1\0"+
-    "\2\1\1\11";
+    "\2\0\1\11\2\1\4\11\1\1\1\11\3\1\1\0"+
+    "\1\1\1\11";
 
   private static int [] zzUnpackAttribute() {
     int [] result = new int[17];
@@ -256,7 +258,7 @@ class TestLexer {
     char [] map = new char[0x110000];
     int i = 0;  /* index in packed string  */
     int j = 0;  /* index in unpacked array */
-    while (i < 86) {
+    while (i < 90) {
       int  count = packed.charAt(i++);
       char value = packed.charAt(i++);
       do map[j++] = value; while (--count > 0);
@@ -459,14 +461,26 @@ class TestLexer {
   }
 
 
+  /**
+   * Contains user EOF-code, which will be executed exactly once,
+   * when the end of file is reached
+   */
+  private void zzDoEOF() throws java.io.IOException {
+    if (!zzEOFDone) {
+      zzEOFDone = true;
+      yyclose();
+    }
+  }
+
+
   /**
    * Resumes scanning until the next regular expression is matched,
    * the end of input is encountered or an I/O-Error occurs.
    *
    * @return      the next token
    * @exception   java.io.IOException  if any I/O-Error occurs
    */
-  public String yylex() throws java.io.IOException, RuntimeException {
+  public java_cup.runtime.Symbol next_token() throws java.io.IOException, RuntimeException {
     int zzInput;
     int zzAction;
 
@@ -546,55 +560,61 @@ class TestLexer {
 
       if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
         zzAtEOF = true;
-        return null;
+            zzDoEOF();
+          { return new java_cup.runtime.Symbol(sym.EOF); }
       }
       else {
         switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) {
           case 1: 
             { throw new RuntimeException("Illegal character <" + yytext() + ">");
             } 
             // fall through
-          case 10: break;
+          case 11: break;
           case 2: 
-            { System.out.println("VARIABLE "+ yytext()); return "VAR";
+            { System.out.println("VARIABLE "+ yytext()); return new Symbol(sym.VAR, yytext());
             } 
             // fall through
-          case 11: break;
+          case 12: break;
           case 3: 
-            { return "L_BRA";
+            { return new Symbol(sym.L_BRA);
             } 
             // fall through
-          case 12: break;
+          case 13: break;
           case 4: 
-            { return "GT";
+            { return new Symbol(sym.R_BRA);
             } 
             // fall through
-          case 13: break;
+          case 14: break;
           case 5: 
-            { return "LT";
+            { return new Symbol(sym.GT);
             } 
             // fall through
-          case 14: break;
+          case 15: break;
           case 6: 
-            { /*ignore*/
+            { return new Symbol(sym.LT);
             } 
             // fall through
-          case 15: break;
+          case 16: break;
           case 7: 
-            { return Integer.parseInt(yytext());
+            { /*ignore*/
             } 
             // fall through
-          case 16: break;
+          case 17: break;
           case 8: 
-            { System.out.println("IS"); return "IS";
+            { return new Symbol(sym.NUMBER, Integer.parseInt(yytext()));
             } 
             // fall through
-          case 17: break;
+          case 18: break;
           case 9: 
-            { System.out.println("RELATION "+ yytext()); return "REL";
+            { System.out.println("IS"); return new Symbol(sym.IS);
             } 
             // fall through
-          case 18: break;
+          case 19: break;
+          case 10: 
+            { System.out.println("RELATION "+ yytext()); return new Symbol(sym.REL, yytext());
+            } 
+            // fall through
+          case 20: break;
           default:
             zzScanError(ZZ_NO_MATCH);
         }