This commit was manufactured by cvs2svn to create tag 'buildscript'.

[IRC.git] / Robust / cup / java_cup / simple_calc / parser.cup

diff --git a/Robust/cup/java_cup/simple_calc/parser.cup b/Robust/cup/java_cup/simple_calc/parser.cup
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--- a/Robust/cup/java_cup/simple_calc/parser.cup
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-// JavaCup specification for a simple expression evaluator (w/ actions)
-
-package java_cup.simple_calc;
-
-import java_cup.runtime.*;
-
-/* Terminals (tokens returned by the scanner). */
-terminal           SEMI, PLUS, MINUS, TIMES, DIVIDE, MOD;
-terminal           UMINUS, LPAREN, RPAREN;
-terminal Integer   NUMBER;
-
-/* Non terminals */
-non terminal Object     expr_list, expr_part;
-non terminal Integer    expr;
-
-/* Precedences */
-precedence left PLUS, MINUS;
-precedence left TIMES, DIVIDE, MOD;
-precedence left UMINUS, LPAREN;
-
-/* The grammar */
-expr_list ::= expr_list expr_part 
-             | 
-              expr_part;
-
-expr_part ::= expr:e 
-             {: System.out.println("= " + e); :} 
-              SEMI              
-             ;
-
-expr      ::= expr:e1 PLUS expr:e2    
-             {: RESULT = new Integer(e1.intValue() + e2.intValue()); :} 
-             | 
-              expr:e1 MINUS expr:e2    
-              {: RESULT = new Integer(e1.intValue() - e2.intValue()); :} 
-             | 
-              expr:e1 TIMES expr:e2 
-             {: RESULT = new Integer(e1.intValue() * e2.intValue()); :} 
-             | 
-              expr:e1 DIVIDE expr:e2 
-             {: RESULT = new Integer(e1.intValue() / e2.intValue()); :} 
-             | 
-              expr:e1 MOD expr:e2 
-             {: RESULT = new Integer(e1.intValue() % e2.intValue()); :} 
-             | 
-              NUMBER:n                 
-             {: RESULT = n; :} 
-             | 
-              MINUS expr:e             
-             {: RESULT = new Integer(0 - e.intValue()); :} 
-             %prec UMINUS
-             | 
-              LPAREN expr:e RPAREN     
-             {: RESULT = e; :} 
-             ;