IEEE Scheme written in Youtoo 0.93

Youtoo is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

Youtoo is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Youtoo in the file COPYING. If not, see http://www.gnu.org/licenses/.

This is IEEE Scheme implemented in youtoo.

• Install the bignums module in directory Extras/Bignum.
• Run 'make' in directory Extras/Scheme; this creates libscheme.{i,a}.
• Run 'make test' in directory Extras/Scheme; this tests libscheme.{i,a}.
• Installation of the scmtoo Scheme interpreter
  
  • Run 'make scmtoo' in directory Extras/Scheme; this creates Scheme image.
  • Run 'Bin.${ARCH}/scmtoo.sh'.
• Installation of the scm2tk Scheme-Tk Interpreter
  
  • Edit the Extras/Scheme/Makefile (if necessary).
  • Run 'make scm2tk'.
  • Make sure your LD_LIBRARY_PATH environment variable is set correctly (you could edit Bin.${ARCH}/scm2tk.sh to add EUL_TCL_LIB_PATH EUL_TK_LIB_PATH and EUL_X_LIB_PATH).
  • Example test for scm2tk
    Run 'Bin.${ARCH}/scm2tk.sh' and type

    (define (foo b x)
      (display b)
      (newline)
      (tk-button-flash b))
    
    (let ((b1 (tk-make-button () text: "foo" command: foo args: '(self: 42)))
          (b2 (tk-make-button () text: "exit" fg: "red" command: tk-exit)))
      (tk-pack b1 b2 padx: "10" pady: "3"))
    
    (tk-main-loop)
    

• Scheme for Teaching
  The Scheme image is tailored to teaching first-year students with

  Harold Abelson and Gerald Jay Sussman and Julie Sussman
  "Structure and Interpretation of Computer Programs"
  The MIT Press, 1996.
  

  This book is based on IEEE (which is not R4RS or R5RS). For better debugging and simpler interaction there is a flag called *first-year-students* that triggers inlining the rep and other things. This flag can be toggled in scmtoo or scm2tk with first-year-students:.

• EuLisp-Tk Documentation
  See http://www.cs.bath.ac.uk/~jap/ma5jg/youtoo-Tk-docs/ for documentation and some Tk examples in EuLisp syntax or send mail to Julian Padget at jap@maths.bath.ac.uk for more Tk teaching code.