Viml functions: Difference between revisions
From wikinotes
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function! VarArgs(...) | function! VarArgs(...) | ||
echo a:1 | echo a:0 " number of spread arguments | ||
echo a:2 | echo a:1 " 1st spread argument | ||
echo a:2 " 2nd spread argument | |||
echo a:000 " list of all arguments (max 20) | echo a:000 " list of all arguments (max 20) | ||
" ... | " ... |
Revision as of 19:58, 26 June 2022
Basics
All vim Functions must start with a captial letter (an underscore is also valid)
function ResizeTabs(size, num, ...) " (...) indicates accepts *args let size = a:size " args must be saved to variable in order to be used let num = a:num let num_extra = a:0 " number of ... args let extraA = a:1 " (...) *args accessed by number let extraB = a:2 return "success" endfuncviml functions are cannot be called directly from the vim's command-mode, you must call them using the keyword
call
:call ResizeTabs("four", 4, "abc", "efg")You may also define a
command
for your function, allowing it to be used withoutcall
command ResizeTabs call ResizeTabs() " make function into vim-command :ResizeTabsSee Also viml commands .
Public/Private
vim's version of private-functions are script-local scoped functions. They have a prefix of
s:
.function Public() " ... endfunc function s:Private() " ... endfunc
Parameters
function! PrintArgs(text) echo a:text " arguments are scoped with 'a:...' endfunc call PrintArgs("mytext")You may define a variable number of args (like python's
*args
using...
.function! VarArgs(...) echo a:0 " number of spread arguments echo a:1 " 1st spread argument echo a:2 " 2nd spread argument echo a:000 " list of all arguments (max 20) " ... endfunc