On Aug 23, 2013 1:24 AM, "Jakson Alves de Aquino" <[email protected]>
wrote:
>
>
> Hi,
>
> The documentation of Funcref includes the following statement:
>
> A Funcref variable must start with a capital, "s:", "w:",
> "t:" or "b:".
>
> It seems that sentence is incomplete. I think the intention was to
> write:
>
> A Funcref variable must start with a capital letter and both
> the function being referred to and the Funcref variable must
> have the same scope, being prefixed by "s:", "w:", "t:" or
> "b:".
I do not understand. Vim currently has nothing else but global functions.
There are no scoped ones, s:Fname is simply a shortcut for <SNR>N_Fname,
where N is current script number. Anonymous functions are global ones with
just N as their name, N is number of anonymous functions defined in this
session (i.e. it is just an incremented counter).
Thus I have not seen the "must have the same scope" behavior you describe.
Also note that using b:Fname (or g:Fname) as function name is undocumented.
And it is as well NOT a name of buffer-local function.
> But there is other problem in the documentation: although not
> mentioned, "g:" also works even if it isn't explicitly prefixed in
> the script, as in the example below where script_b.vim sources
> script_a.vim. If we do :so % while editing script_b.vim,
> FunctionA is executed:
>
> " script_a.vim:
> function FunctionA()
> echo "Hello World!"
> endfunction
>
> " script_b.vim
> source script_a.vim
> let CallFunctionA = function("FunctionA")
> call CallFunctionA()
>
> Note: I'm using global Funcref to global functions in the
> Vim-R-plugin. So I hope that the problem is in the documentation
> and not in the actual Vim behavior.
I would say that putting funcrefs directly into global or function-local
variable is the worst idea: your code will break if someone defines
CallFunctionA function. Use dictionaries:
let d={}
let d.CallFunctionA = function("FunctionA")
> Thanks!
>
> --
> Jakson Alves de Aquino
> Federal University of Ceará
> Social Sciences Department
> www.lepem.ufc.br/aquino.php
>
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