bprocessor-commit

[Michael L. <he...@us...>]

Update of /cvsroot/bprocessor/bscript/src/etc
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv583/src/etc

Modified Files:
	bscript.g 
Log Message:
Improvements to scripting

Index: bscript.g
===================================================================
RCS file: /cvsroot/bprocessor/bscript/src/etc/bscript.g,v
retrieving revision 1.9
retrieving revision 1.10
diff -C2 -d -r1.9 -r1.10
*** bscript.g	29 Sep 2006 07:13:16 -0000	1.9
--- bscript.g	10 Oct 2006 13:49:35 -0000	1.10
***************
*** 32,35 ****
--- 32,36 ----
  LtEq: "<=" ;
  GtEq: ">=" ;
+ Assign: ":=" ;
  
  protected Letter
***************
*** 100,104 ****
  
  assignment[Function env]
!     : name:Identifier Equal simpleton[env]
        { env.append(new Assign(name.getText())); }
      ;
--- 101,105 ----
  
  assignment[Function env]
!     : name:Identifier Equal expression[env]
        { env.append(new Assign(name.getText())); }
      ;
***************
*** 152,164 ****
      ;
  
  simpleton[Function env]
!     : variable[env]
!     | literal[env]
      | StartTerm expression[env] EndTerm
!     | Lt statement[env] Gt
      ;
      
  
! expression[Function env]
      : evaluation[env]
        ( Equal evaluation[env] { env.append(new Primitive(Primitive.EQ)); }
--- 153,176 ----
      ;
  
+ protected value[Function env]
+     : literal[env]
+     | variable[env]
+     | variable[env] LB ( expression[env] ) RB { env.append(new Primitive(Primitive.GET)); } 
+     ;
+ 
  simpleton[Function env]
!     : value[env]
      | StartTerm expression[env] EndTerm
!     | Lt procedurecall[env] Gt
!     | unarysimpleton[env]
!     ;
!     
! unarysimpleton[Function env]
!     : Plus simpleton[env]
!     | Minus simpleton[env] { env.append(new Primitive(Primitive.NEG)); } 
      ;
      
  
! protected expression[Function env]
      : evaluation[env]
        ( Equal evaluation[env] { env.append(new Primitive(Primitive.EQ)); }
***************
*** 171,175 ****
  
      
! evaluation[Function env]
      : term[env]
        ( Plus term[env] { env.append(new Primitive(Primitive.ADD)); } 
--- 183,187 ----
  
      
! protected evaluation[Function env]
      : term[env]
        ( Plus term[env] { env.append(new Primitive(Primitive.ADD)); } 
***************
*** 186,198 ****
  
  atom[Function env]
!     :   literal[env]
!     |   variable[env]
!     |   variable[env] LB ( expression[env] ) RB { env.append(new Primitive(Primitive.GET)); } 
      |   StartTerm expression[env] EndTerm
!     |   unary[env]
!     |   call[env]
      ;
  
! unary[Function env]
      : Plus atom[env]
      | Minus atom[env] { env.append(new Primitive(Primitive.NEG)); } 
--- 198,209 ----
  
  atom[Function env]
!     :   value[env]
      |   StartTerm expression[env] EndTerm
!     |   Lt procedurecall[env] Gt
!     |   unaryatom[env]
!     |   functioncall[env]
      ;
  
! unaryatom[Function env]
      : Plus atom[env]
      | Minus atom[env] { env.append(new Primitive(Primitive.NEG)); } 
***************
*** 207,211 ****
      ;
      
! call[Function env]
      : name1:Identifier { env.append(new Mark()); } 
        StartTerm  EndTerm
--- 218,222 ----
      ;
      
! functioncall[Function env]
      : name1:Identifier { env.append(new Mark()); } 
        StartTerm  EndTerm