How do you use the “K”-button in the normal mode of VIM?

Question

K is used to open manuals. I am interested how you use it. Can you use it to all kind of manuals, such as C, java and other things?

Answer 1

Yes. You need to update the keywordprg variable to point to a program that can lookup a keyword in the language of your choice. In general you can google for particular languages and solutions. Here are a couple of them

• Java: http://vim.wikia.com/wiki/Vim_Doclet
• Perl: http://vimrc-dissection.blogspot.com/2009/02/vims-keywordprg-for-perl-and-vim-itself.html