cit_util/src/SIsuffix.i3

  Copyright (c) 2000 California Institute of Technology                    
  All rights reserved.                                                     
  Department of Computer Science                                           
  Pasadena, CA 91125.                                                      
                                                                           
  Author: Mika Nystrom <mika@cs.caltech.edu>                               
                                                                           
  Permission to use, copy, modify, and distribute this software            
  and its documentation for any purpose and without fee is hereby          
  granted, provided that the above copyright notice appear in all          
  copies. The California Institute of Technology makes no representations  
  about the suitability of this software for any purpose. It is            
  provided as is without express or implied warranty. Export of this     
  software outside of the United States of America may require an          
  export license.                                                          
                                                                           
 $Id: SIsuffix.i3,v 1.2 2001-09-19 14:07:43 wagner Exp $ 


INTERFACE SIsuffix;
IMPORT FloatMode, Lex;

EXCEPTION
  OutOfRange;
  UnknownSuffix;

 parse numbers that have appended SI suffixes. (or dont) 


 If the routines are called with a mode of Base10, the standard SI 
 suffixes will be used.  If Base2 is used, then k is 1024, etc.    


TYPE Mode = { Base10, Base2 };

PROCEDURE Int(text : TEXT; mode := Mode.Base10) : INTEGER RAISES { OutOfRange, UnknownSuffix, FloatMode.Trap, Lex.Error } ;

PROCEDURE LongReal(text : TEXT; mode := Mode.Base10) : LONGREAL RAISES { UnknownSuffix, FloatMode.Trap, Lex.Error };

PROCEDURE Real(text : TEXT; mode := Mode.Base10) : REAL RAISES { UnknownSuffix, FloatMode.Trap, Lex.Error };

TYPE
  T = Suffix;

  Suffix = RECORD
    char : CHAR;
    size : LONGREAL;
    name : TEXT;
    geeky : LONGREAL := 0.0d0
  END;

 n.b. deka is non-standard.  should be da according to SI 
 also micro should be mu (Greek letter) 
 kilo could perhaps be K as well 


CONST
  KiloGeek = FLOAT(1024, LONGREAL);

VAR  List : ARRAY [0..15] OF T;

CONST
  Brand = "SIsuffix";

END SIsuffix.





interface FloatMode is in: