Split parsing to a separate package?

[mristin]

Hi @victorlei ,
Thanks for taking the time to implement and publish smop!

Did you consider to split the lexer and parser to a separate pypi package (e.g., smop-parse)?

I'm working on a project that needs to parse Matlab code and smop seems like a good option. I would gladly do and maintain the splitting if you wish? The benefit would be two-fold:

1. people can use only the parser (less dependencies) and
2. a larger user base would bring improvements to the parser which would consequently benefit smop.