[Vim-latex-devel] Some problems with command implementation

[Srinath A. <sr...@fa...>]

Hello,

I am facing a problem implementing some commands in templates.vim,
packages.vim and custommacros.vim... I have as an example, the following
setup:

---------------------%<---------------------
fun! Foo(...)
    if a:0 == 0
        let name = input('Whats your name?', 'bozo')
    else
        let name = a:1
    endif
    return 'Your name is '.name
endfun

inoremap <F3>       <C-r>=Foo()<CR>
nnoremap <F3>       i<C-r>=Foo()<CR>
inoremenu Help.foo      <C-r>=Foo()<CR>
nnoremenu Help.foo      i<C-r>=Foo()<CR>

com! -nargs=?  FooCom normal! i<C-r>=Foo()<CR>
---------------------%<---------------------

With this setup, the insert and normal mode menu and mappings work as
expected. It also works when FooCom is called with 1 argument, such as
    :FooCom bar
However, when FooCom is called without any arguments, we end up always
getting a value 'bozo' for name because the <CR> gets eaten up by the
input() immediately (I think). Whats a good way to make the command
work? I tried placing a ":call getchar()" at the beginning of the
function but even then the command without argument doesn't work...

Also, I cannot use something like:

com! -nargs=?  FooCom put!=Foo()

because in general Foo() will contain movement commands such as <Esc>3h
and stuff... Moreover, sometimes, we would like to end up in say select
mode after the function returns... So :put will not work...

Any ideas?

Srinath