Hi, I am the developer of OSN and the associated file extension is .osn . I would be grateful if you would add this to your public database.
.osn files are text files using the UTF-8 encoding.
Open Symbolic Notation, abbreviated OSN, is an easy and flexible data-interchange text format intended for the lightweight representation of generic abstract syntax trees in the domain of formal languages. It is based on qualified symbolic expressions.
web page: http://lambdadelta.info/osn/
logo: http://lambdadelta.info/images/osn_32.png
Thank you
-- Dr. Ferruccio Guidi
DISI - University of Bologna, Italy
new file extension .osn
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1. English language only please
2. No spam, advertisement or inappropriate material
3. No trolling and flaming