====== vimdiff ======
  * 두 파일의 다른점을 비교해가며 편집할 수 있다.
  * ''vimdiff file1 file2 ...'' 혹은 ''vim -d file1 file2...'' 명령으로 실행
  * [[http://www.debianadmin.com/vimdiff-edit-two-or-three-versions-of-a-file-with-vim-and-show-differences.html|vimdiff – Edit two or Three versions of a file with Vim and show differences]]
  * [[http://technotales.wordpress.com/2009/05/17/git-diff-with-vimdiff/|Git Diff with Vimdiff]]
  * [[https://goodtogreate.tistory.com/entry/git-difftool-%EC%82%AC%EC%9A%A9%EB%B2%95|git difftool 사용법 vimdiff]]
  * [[https://www.rosipov.com/blog/use-vimdiff-as-git-mergetool/|Use vimdiff as git mergetool - Ruslan Osipov]]
  * [[https://gist.github.com/mattratleph/4026987|vimdiff cheat sheet]]
  * [[https://medium.com/usevim/git-and-vimdiff-a762d72ced86|Git and Vimdiff | by Alex R. Young | usevim | Medium]]

===== 사용법 =====
  * ''do'' - Get changes from other window into the current window.
  * ''dp'' - Put the changes from current window into the other window.
  * '']c'' - Jump to the next change.
  * ''[c'' - Jump to the previous change.
  * ''zo'' - open folded text
  * ''zc'' - close folded text
  * ''Ctrl W + Ctrl W'' - Switch to the other split window.
  * If you load up two files in splits (:vs or :sp), you can do '':diffthis'' on each window and achieve a diff of files that were already loaded in buffers
  * '':diffoff'' can be used to turn off the diff mode. 

===== 설정 =====
  * ''Ctrl+Alt+Down'' 으로 다음 차이로 이동
  * ''Ctrl+Alt+Up'' 으로 이전 차이로 이동
<code>
nnoremap <expr> <silent> <C-A-Down>   (&diff ? "]c" : ":cnext\<CR>")
nnoremap <expr> <silent> <C-A-Up> (&diff ? "[c" : ":cprev\<CR>")
</code>
  * 공백 비교 피하기
<code>
:set diffopt+=iwhite
</code>