mattyw / edgar

a small LISP Interpreter written in C

edgar

edgar is a small LISP Interpreter written in C. It doesn't have a lot of built-in functions yet, but it is already quite functional. It allows users to define functions and supports some of the classic introduction to LISP programs like factorial, fibonacci, GCD, LCM, and more.

Requirements

• C compiler and standard build tools (make, sh, ...).
• GNU MP
• valgrind (optional - adds memory error/leak checks)
• wine (optional - runs tests on mingw32 cross builds)

Building

Standard autotools build (make check runs the test suite):

$ autoreconf -i
$ ./configure --prefix=/usr
$ make
$ make check
# make install

Note: autoreconf -i is only needed if there is no configure script.

Cross Compiling (Target: mingw32)

Is edgar running too fast for you? You can cross compile it and run it in wine to slow things down a bit. Here's how do it assuming your cross toolchain is in your path and named i686-pc-mingw32.

The first step is to setup a cross build prefix and install libgmp there.

mkdir -p $HOME/tmp/xbuild
cd $HOME/tmp/xbuild
wget ftp://ftp.gmplib.org/pub/gmp-5.1.2/gmp-5.1.2.tar.bz2
tar jpvxf gmp-5.1.2.tar.bz2
cd gmp-5.1.2
./configure --host=i686-pc-mingw32 --prefix=$HOME/tmp/xbuild/prefix
make
make install
cd ..

The next step is to cross build edgar.

tar zvxf edgar-1.0.tar.gz
cd edgar-1.0
LDFLAGS="-L$HOME/tmp/xbuild/prefix/lib" CPPFLAGS="-I$HOME/tmp/xbuild/prefix/include" ./configure --host=i686-pc-mingw32 --prefix=$HOME/tmp/xbuild/prefix
make
make check
cp src/edgar.exe $HOME
cd ~
wine edgar.exe

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request