This plugin enables the user to reformat argument lists in function calls and function definitions. It was developed for Javascript, but it should work for many C-Style languages (C, C++, Java, C#, etc...).

The plugin designed so that it supports any ','-separated list between '()'. This enables it to work on function definitions as well. The plugin provides 3 commands, one for formatting an argument list into one of the 3 styles respectively.

argformat will automatically detect your indentation settings for formatting argument lists.

Currently, argformat supports 3 argument list styles:

// 'concise'
methodName( some, parameters, to, the, call, go, here );

// 'multiline'
methodName(
    some,
    parameters,
    to,
    the,
    call,
    go,
    here
);

// 'on par with call'
methodName( some,
            parameters,
            to,
            the,
            call,
            go,
            here );

Just use your favorite plugin manager (I recommend vim-plug, https://github.com/junegunn/vim-plug).

argformat requires your vim to be compiled with python support (+python).

:ArgFormatConcise       Format the current argument list in the "concise"
                        style.

:ArgFormatMultiline     Format the current argument list in the "multiline"
                        style

:ArgFormatOnPar         Format the current argument list in the "on par with
                        call" style

argformat may be customized with the following options.

g:argformat_spaces_around_arglist: Default: 0. When set to 1, argformat will add/keep spaces between the opening and closing parentheses of the argument list.