;;;; TASK III: LR INFIX CALCULATOR (DEMO)
  
  
  i i i i i i i       ooooo    o        ooooooo   ooooo   ooooo
  I I I I I I I      8     8   8           8     8     o  8    8
  I  \ `+' /  I      8         8           8     8        8    8
   \  `-+-'  /       8         8           8      ooooo   8oooo
    `-__|__-'        8         8           8           8  8
        |            8     o   8           8     o     8  8
  ------+------       ooooo    8oooooo  ooo8ooo   ooooo   8

Welcome to GNU CLISP 2.49 (2010-07-07) <http://clisp.cons.org/>

Copyright (c) Bruno Haible, Michael Stoll 1992, 1993
Copyright (c) Bruno Haible, Marcus Daniels 1994-1997
Copyright (c) Bruno Haible, Pierpaolo Bernardi, Sam Steingold 1998
Copyright (c) Bruno Haible, Sam Steingold 1999-2000
Copyright (c) Sam Steingold, Bruno Haible 2001-2010

Type :h and hit Enter for context help.

[1]> (load "two_calculators.l")
;; Loading file two_calculators.l ...
;; Loaded file two_calculators.l
T
[2]> (calculator-LR)
Expression? 12.3 + 4.5 * 9.6
Result: 161.28
Expression? 12.3 / 4.5 - 9.6
Result: -6.866667
Expression? 100 - 50 / 5
Result: 10
Expression? 111 * 3 * 2
Result: 666