Algol

Hi,

  The following Algol program used to work in DrRacket with the language Algol 60 selected.

begin 
   integer i;                             
   real procedure sum(j, lo, hi, term);                                              
      value lo, hi;                                                                   
      integer j, lo, hi;                                                              
      real term;                                                                      
      comment term is passed by-name;                                                 
   begin                                                                              
      real temp;                                                                      
      temp := 0;                                                                
      for j := lo step 1 until hi do                                                  
         temp := temp + term;                                                         
      sum := temp                                                                     
   end;  
   i := 1;                                                                            
   printnln(sum(i, 1, 100, i))                                                       
end          


  Now it gives the following error.

for-body96339: unbound identifier;
 also, no #%top syntax transformer is bound in: for-body96339

  Has something changed?  It does seem to work in Racket with a #lang 
directive, and simpler Algol 60 programs do work in Algol 60 mode.  Why 
should this be?

  Thanks.

-Arthur


==============================================================
Arthur Nunes-Harwitt
Computer Science Department, Rochester Institute of Technology
Room 70-3509
585-475-4916
==============================================================

"I don't know what the language of the future will be
called, but it will look like LISP."

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