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- Introduction to CLISP
- =====================
-
- CLISP names this implementation of COMMON LISP for the Atari ST.
- It consists of the following files:
-
- LISP.PRG main program
- LISPINIT.MEM memory image needed for startup
- CONFIG.LSP site-dependent configuration
- INTRO.TXT this introduction
-
- What is LISP?
- -------------
-
- LISP is a programming language. It was invented by J. McCarthy in 1959.
- There have been many dialects of it, but nowadays LISP has been standardized
- and wide-spread due to the industrial standard COMMON LISP. There are
- applications in the domains of symbolic knowledge processing (AI), numerical
- mathematics (MACLISP yielded numerical code as good as FORTRAN), and
- commercial programs like editors (EMACS) and CAD (AUTOCAD).
- There is an introduction in the language:
- Sheila Hughes: Lisp. Pitman Publishing Limited, London 1986.
- 107 pages.
- After a while wou will need the standard text containing the language
- definition:
- Guy L. Steele Jr.: Common Lisp - The Language. Digital Press.
- 1. edition 1984, 465 pages.
- 2. edition 1990, 1032 pages.
- LISP is run in an interactive environment. You input forms, and they will be
- evaluated at once. Thus you can inspect variables, call functions with given
- arguments or define your own functions.
-
- Installation:
- -------------
-
- Change the strings in CONFIG.LSP, using a text editor. Then start LISP.PRG.
- When the LISP prompt
- > _
- appears, type
- (compile-file "config")
- (load "config")
- and then
- (saveinitmem)
- to overwrite the file LISPINIT.MEM with your configuration.
- (Please do this only once!)
-
- Things to know
- --------------
-
- Keyboard input is line buffered.
- The following keys are recognized:
- Tab 1 to 8 spaces
- Backspace deletes one character to the left
- Delete deletes one character to the right
- Insert inserts a space
- <- moves the cursor one character to the left
- -> moves the cursor one character to the right
- Shift <- moves the cursor to the beginning of the line
- Shift -> moves the cursor to the end of the line
- Return, Enter finishes editing of this line
- Help, Undo, F1-F10 context dependent
-
- The loudspeaker bell sounds on every beginning and end of a garbage
- collection.
-
- Screen output can be stopped temporarily by pressing the right mouse key.
- If the mouse is moved with the right mouse key being pressed, the screen
- output continues slowly.
-
- Running programs can be interrupt in most cases by pressing both mouse keys
- at the same time. If this shouldn't work, simultaneous pressing of a shift
- key and both mouse keys will work.
-
- You leave the LISP system by executing (exit).
-
- When you encounter problems:
- ----------------------------
-
- After errors, you are in the debugger:
- 1. Break> _
- You can evaluate forms, as usual. Furthermore:
- Help
- calles help
- Undo
- climbs up to next higher input loop
- (show-stack)
- shows the contents of the stack, helpful for debugging
- And you can look at the values of the variables of the functions where the
- error occurred.
-
- On lack of memory (this is the case if garbage collections occur more and
- more often and you then get an error message) remove some memory pigs.
- If there is even not enough space to evaluate forms, then evaluate the form
- 0 three times and clean up or leave LISP using (exit).
- Hints to save memory: Don't leave programs in the background when starting
- LISP. Compile functions that have been tested enough.
-
- On bigger problems, e.g. bombs, please send a description of the error and
- how to produce it reliably to the authors.
-
- Authors:
- --------
-
- Bruno Haible Michael Stoll
- Ritterstraße 42 Riesenfeldstraße 96
- D - W 7500 Karlsruhe 1 D - W 8000 München 40
- Germany Germany
-
- Email: haible@ma2s2.mathematik.uni-karlsruhe.de
-
-