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I cannot convince vim to apply the coding-style I'd like to (cindent and friends).
However, integrating clang-format.py (which uses the .clang-format of my project) actually makes me totally happy.
Except that I have the reflex of using the = + motion-command. Which is actually very nice to indent a region or the whole file.
How can I instruct vim to override the default functionality? I read about equalprg, but I'm unsure how to set it to make it work with clang-format.
If you have nothing against a plugin install, Rhysd's vim-clang-format may be a valid solution, instead of a custom equalprg.
As the documentation states, with Kana's vim-operator-user dependency installed, you can map = to <Plug>(operator-clang-format) (to function as a full operator) and use it with motions / text-objects such as == or =G.
You should create a buffer local mapping, only for C,C++ and Objective-C filetypes, to let default = otherwise untouched:
autocmd FileType c,cpp,objc map <buffer> = <Plug>(operator-clang-format)
vim-clang-formatplugin, together with its requirements (especiallyvim-operator-user), and then map=to<Plug>(operator-clang-format)? Plugin link: github.com/rhysd/vim-clang-format==for one line andgg=Gfor the whole buffer?