lispi - My lisp dialect

Simple programming language I had made during first year in the college.

• core of language is working.

• it has macros, REPL, reasonable error reporting (see errors.lisp)

• Documentation is in html/

• It has around 2.5k lines of C++ code.

• utils/mylisp.lang is syntax highlighting for lispi for gedit (put symlink to /usr/share/gtksourceview-2.0/language-specs/)

• nice picture of inheritance of classes: html/inherits.html

• Features that are missing and would be fun to add sometime: tail-recursion, garbage collection

• usage: ./lisp program.lisp

Example source code.

(printnl "Example source code (test.lisp):")

(and True (== 1 0) (print "nothing will be printed"))

# defun - Macro for defining functions
# - it makes anonymous function and then assign name to it.
# - argument body has to have just one statement. More complex functions can be contained in  
#   do (evall A B C)
# example:
# (defun helloworld ()
#   (print "hello world"))

(defmacro defun (name params body)
    (backquote (set 
              (comma name) 
              (comma (backquote (lambda
                                 (comma params)
                                 (comma body)))))))

# import - function for importing and evaluating another source code
#
(defun import (filename)
    (evall 
        (progn (parse (readfile filename)))
        (exportall)))

(import "stdlib/io.lisp")
(import "stdlib/math.lisp")

# Function for computing factorial, using classic recurrent formula.
# example: (fact 5)

(defun fact (x)
    (if (== x 0)
        1
        (* x (fact (- x 1)))))

(printnl (fact 5))

See html/stdlibc_8h.html and stdlib/ for more examples.