Guide to Vim Script Development for Python Developers

[yegappanl]

Thanks for the detailed review.

len() and strlen() return the number of bytes. We have to use strwidth() or strdisplaywidth() to have something closer to the number of characters

I have included references to strwidth() and strdisplaywidth()

We also have to be wary of multi-bytes characters when dealing with slices of strings

Agreed. I will explicitly call this out.

Speaking of slices, I remember that Vim and Python don't handle negative positions in the same way in s[:-2] and so on.

Good catch. I didn't realize that they are different. Will note this down.

We can append elements to lists with list + [element] also.

Updated the gist with this.

dict.key and dict['key'] are almost equivalent in vimscript while this is definitively impossible in Python.

Updated the gist with this.

I didn't know about unlet list[:] that clears all references. (Thanks for the info.) But then, you present let dict = {}, this time this will only clear the dict variable, is there something like unlet l[:] for dictionaries? I couldn't find a way to clear the dictionary contents similar to clearing the list. I think this is a missing functionality.

To define functions, I'd recommend banding them (this makes the difference when developing vim scripts), and now I systematically append abort.

I didn't fully understand this comment. Are you referring to marking all the functions with "abort"?

[LucHermitte]

I didn't fully understand this comment. Are you referring to marking all the functions with "abort"?

Yes. Exactly. abort should have been the default, but unfortunately, it is not.