README


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BUILDING
========

Colm is currently supported only on Unix-like systems. It depends on the mmap
function and it must be able to find g++ on the path.

Building Colm from the source repository requires that you have ragel and kelbt
installed. Building these two packages is straightforward. The usual
./configure && make should be all that's needed. Alternatively, you may find
packages for your system.

http://www.complang.org/ragel/
http://www.complang.org/kelbt/

SYNTAX HIGHLIGHTING
===================

There is a vim syntax definition file colm.vim

RUNNING
=======

The colm executable takes a Colm program and generates a .cpp file from it. It
then compiles this program using g++. The g++ compile phase depends on include
directories in the colm distribution, as well as a runtime library. Colm finds
these using argv[0]:

    -I dirname(argv[0])"../aapl"
    -I dirname(argv[0])"../colm"
    dirname(argv[0])"../colm/runtime.a"

Therefore it is easiest to just run colm from the place it was built. This is
temporary. In the future a proper install scheme will be provided.

$ ./colm prog.lm

Will produce:
    prog.cpp
    prog.bin

The prog.bin program can then be run on some input:

$ ./prog.bin < inputfile