Having scoped script functions

Question

I have written two functions two select inner and outer indent levels, which work perfectly.

However I tried to use vim scoping alà function scope#name, which sadly doesn't seem to work in my case:

onoremap <silent> iz :<c-u>call <sid>sick#iz_motion(0)<cr>
onoremap <silent> az :<c-u>call <sid>sick#iz_motion(&tabstop)<cr>                     
vnoremap <silent> iz :<c-u>call <sid>sick#iz_motion(0)<cr>                            
vnoremap <silent> az :<c-u>call <sid>sick#iz_motion(&tabstop)<cr>    

function s:sick#iz_motion(margin)                                                     
  let l:cur_indent = indent(line("."))                                                
  while indent(line('.') - 1) >= l:cur_indent - a:margin                              
    \ && getline(line('.') - 1) != ''                                                 
    execute 'normal k'                                                                
  endwhile                                                                            

  execute "normal V"  
  while indent(line('.') + 1) >= l:cur_indent - a:margin                              
    \ && getline(line('.') + 1) != ''                                                 
    execute 'normal j'                                                                
  endwhile                                                                            
endfunction                 

Answer 1

You can't mix the s: prefix and the autoload syntax. Doing so would make no sense: the s: prefix is designed to limit the scope to the current script, while the autoload syntax with # is designed for autoloading exported functions (that is, functions that are available outside the current script).

Use either just s:name (if you only need it to be available from the current script) or filename#name (if you want to call it from other scripts). Since you're using it in a mapping, you need to export it; so you'll have to use the autoload syntax.

See :help write-library-script and :help local-function.