Scilab.tar.gz is a project mainly written in Vim Script, it's free.
Syntax file for Scilab.
This is a mirror of http://www.vim.org/scripts/script.php?script_id=1137
Script provides syntax hilighting for Scilab, a scientific software package for numerical computations similar to Matlab (http://www.scilab.org). Screenshot: http://vamo.euweb.cz/vim/scilab/scilab.png There is a script for indenting (vimscript#1138).