Tyru wrote:
> I have implemented wcwidth() function.
> Based commit was 7.2.444.
>
> It is useful to get width of character,
> for e.g., when creating plugin which needs to
> align text not to exceed &columns,
> or which needs to concern character width like tetris game :)
>
> I'm new to hack Vim source.
> So please tell me if I did it wrongly.
I can see it is a useful function.
The implementation isn't quite right, the input conversion should not be
part of the function that counts the cells.
I notice that this loop appears in multiple places, let's make a new
function mb_string2cells() for this.
The name wcwith() is a bit obscure. How about strlencells()?
Or strwidth()?
We should also have a strchars() to count the number of characters.
Might as well add that now.
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