bprocessor-commit

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

Update of /cvsroot/bprocessor/bscript/src/etc
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv26191/src/etc

Modified Files:
	bscript.g 
Log Message:
Improved errorhandling in scripting

Index: bscript.g
===================================================================
RCS file: /cvsroot/bprocessor/bscript/src/etc/bscript.g,v
retrieving revision 1.11
retrieving revision 1.12
diff -C2 -d -r1.11 -r1.12
*** bscript.g	10 Oct 2006 14:41:36 -0000	1.11
--- bscript.g	11 Oct 2006 11:23:27 -0000	1.12
***************
*** 5,8 ****
--- 5,9 ----
  import java.util.List;
  import java.util.LinkedList;
+ import antlr.CharScanner;
  }
  
***************
*** 14,38 ****
  }
  
! StartTerm: '(' ;
! EndTerm: ')' ;
  
! Plus  : '+' ;
! Minus : '-' ;
! Multiply  : '*' ;
! Divide : '/'  ;
! Period : '.' ;
! End   : ';' ;
! Comma : ',' ;
! Bar   : '|' ;
! Lt  : '<' ;
! Gt : '>' ;
! LB : '[' ;
! RB : ']' ;
! LC : '{' ;
! RC : '}' ;
! Equal:  '=' ;
! LtEq: "<=" ;
! GtEq: ">=" ;
! Assign: ":=" ;
  
  protected Letter
--- 15,41 ----
  }
  
! StartTerm options { paraphrase = "'('"; } : '(' ;
! EndTerm options { paraphrase = "')'"; } : ')' ;
  
! Plus  options { paraphrase = "'+'"; } : '+' ;
! Minus  options { paraphrase = "'-'"; } : '-' ;
! Multiply   options { paraphrase = "'*'"; } : '*' ;
! Divide  options { paraphrase = "'/'"; } : '/'  ;
! Period  options { paraphrase = "'.'"; } : '.' ;
! Semicolon    options { paraphrase = "';'"; } : ';' ;
! Comma  options { paraphrase = "','"; } : ',' ;
! Bar    options { paraphrase = "'|'"; } : '|' ;
! Lt   options { paraphrase = "'<'"; } : '<' ;
! Gt  options { paraphrase = "'>'"; } : '>' ;
! LB  options { paraphrase = "'['"; } : '[' ;
! RB  options { paraphrase = "']'"; } : ']' ;
! LC options { paraphrase = "'{'"; } : '{' ;
! RC options { paraphrase = "'}'"; } : '}' ;
!     
! Equal options { paraphrase = "'='"; } :  '=' ;
! LtEq options { paraphrase = "'<='"; } : "<=" ;
! GtEq options { paraphrase = "'>='"; } : ">=" ;
! Assign options { paraphrase = "':='"; } : ":=" ;
! Elipsis : "...";
  
  protected Letter
***************
*** 55,74 ****
  
  Identifier
    : (Letter | '_' ) ( Letter | Digit | '_' )*
    ;
    
  String
    : ( '"' ( ~'"' )* '"' )
    ;
    
  
  WhiteSpace
!    : ( ' '
!    | '\r' '\n'
!    | '\n'
!    | '\t'
!      )
!      {$setType(Token.SKIP);}
!    ;
  
  class ScriptParser extends Parser;
--- 58,79 ----
  
  Identifier
+ options { paraphrase = "an identifier"; } 
    : (Letter | '_' ) ( Letter | Digit | '_' )*
    ;
    
  String
+ options { paraphrase = "a string"; } 
    : ( '"' ( ~'"' )* '"' )
    ;
    
  
+ protected Space  : ' '  ;
+ protected Tab    : '\t' ;
+ protected Form   : '\f' ;
+ 
  WhiteSpace
!   : ( Space | Tab | Form )     { $setType(Token.SKIP); }
!   | ( '\r' | '\n' | '\r''\n' ) { newline(); $setType(Token.SKIP); }
!   ;
  
  class ScriptParser extends Parser;
***************
*** 76,84 ****
  options {
      k=3;
  }
  
  
  program[Function env]
!        : statement[env] End
         ;
         
--- 81,98 ----
  options {
      k=3;
+     defaultErrorHandler=false;
  }
  
+ { private CharScanner scanner; 
+   public void setScanner(CharScanner scanner) {
+     this.scanner = scanner;
+   }
+   public int getLine() {
+     return scanner.getLine();
+   }
+ }
  
  program[Function env]
!        : statement[env] Semicolon
         ;
         
***************
*** 92,97 ****
        ( formal:Identifier { formals.add(formal.getText()); } ) *
        { function = new Function(name.getText(), formals); }
        "begin"
!       ( statement[function] End ) *
        "end"
        { map.put(name.getText(), function); }
--- 106,112 ----
        ( formal:Identifier { formals.add(formal.getText()); } ) *
        { function = new Function(name.getText(), formals); }
+       ( Elipsis ) ?
        "begin"
!       ( statement[function] Semicolon) *
        "end"
        { map.put(name.getText(), function); }
***************
*** 122,126 ****
        "while" expression[env]
        { int beforebranch = env.length(); env.append(branchend); }
!       "do"  ( statement[env] End ) * "end"
        { int after = env.length();
          Branch branch = new Branch(before - after);
--- 137,141 ----
        "while" expression[env]
        { int beforebranch = env.length(); env.append(branchend); }
!       "do"  ( statement[env] Semicolon ) * "end"
        { int after = env.length();
          Branch branch = new Branch(before - after);
***************
*** 137,141 ****
          env.append(branchelse);
        }
!       ( statement[env] End) *
        
        ( "end" 
--- 152,156 ----
          env.append(branchelse);
        }
!       ( statement[env] Semicolon) *
        
        ( "end" 
***************
*** 149,153 ****
          }
          "else" 
!         ( statement[env] End) * 
          "end"
          {
--- 164,168 ----
          }
          "else" 
!         ( statement[env] Semicolon) * 
          "end"
          {