So I guess others may not know, either, but deciding to spend some time going through Shad's scripts (outside of OSG) I thought it would be nice to have syntax highlighting in my favourite editor (Vim). Blow me, but there's a file for that, which can be found at http://vim.cybermirror.org/runtime/syntax/lsl.vim
. On Linux copy it to ~/.vim/syntax (create the directory if it doesn't exist). It should also work with Vim on Windows, but you'll have to check where to copy it to yourself for that.
NB. I found a couple of different files for Vim knocking about, but the one linked seems most up to date. Older ones choke on scripts using newer developments.
For users of other editors, a quick google suggests that similar syntax highlighting files are available.