checking to see if a file include scheme

[Graham Percival]

As a security measure, I'd like to have a script that checks if a 
lilypond file contains any scheme.  Is there any better way than 
searchign for "#(define" ?

I'm not worried about a few false positives (if any non-scheme .ly file 
just happened to have "#(define" in the text somewhere), but could a 
malicious person add whitespace and have "#( define" ?  If so, is there 
a way to search for such a whitespace-including string in python?

... and is there any other way of including scheme in a file?


This isn't a big deal; the LSR editors shouldn't allow any scheme in 
these files, and I'll be checking the git diffs before committing to 
make sure there's no scheme... but it would be nice if there was also an 
automatic script to check for this.

Cheers,
- Graham