How to add dynamic highlighted parts to your status-line

dynaline.gif

dynaline.md

How to add dynamic highlighted parts to your status-line

Anatomy of a "part":

Start of highlighting	Dynamic content	End of highlighting
%#IsModified#	%{&mod?expand('%'):''}	%*

• Non-empty parts are visible because they are not empty.
• Empty parts are not visible because they are empty.
• If you want to hide a part, make it empty.
• If you want to show a part, make it non-empty.
• Part A and part B are always included in the status-line but they can be empty.
• Part A is visible only when the current buffer is modified because it contains the buffer name only when it's modified.
• Part B is only visible when the current buffer is not modified because it contains the buffer name only when it's not modified.

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My Vim-related gists.

dynaline.vim

" custom highlight groups
highlight IsModified    ctermbg=red
highlight IsNotModified ctermbg=green

" Dynamic status line
set statusline+=%#IsModified#%{&mod?expand('%'):''}%*%#IsNotModified#%{&mod?'':expand('%')}%*
"               \______________ Part A _____________/\______________ Part B ________________/