| " Vim plugin for using Vim as manpager. | |
| " Maintainer: Enno Nagel <ennonagel+vim@gmail.com> | |
| " Last Change: 2024 Jul 03 | |
| " 2026 Mar 22 by Vim Project: strip OSC 9 sequences (#19787) | |
| " 2026 Mar 24 by Vim Project: strip Bell char: Ctrl-G (#19807) | |
| if exists('g:loaded_manpager_plugin') | |
| finish | |
| endif | |
| let g:loaded_manpager_plugin = 1 | |
| " Set up the current buffer (likely read from stdin) as a manpage | |
| command MANPAGER call s:ManPager() | |
| function s:ManPager() | |
| " global options, keep these to a minimum to avoid side effects | |
| if &compatible | |
| set nocompatible | |
| endif | |
| if exists('+viminfofile') | |
| set viminfofile=NONE | |
| endif | |
| syntax on | |
| " Ensure text width matches window width | |
| setlocal foldcolumn& nofoldenable nonumber norelativenumber | |
| " In case Vim was invoked with -M | |
| setlocal modifiable | |
| " Emulate 'col -b' | |
| exe 'silent! keepj keepp %s/\v(.)\b\ze\1?//e' .. (&gdefault ? '' : 'g') | |
| " Remove ansi sequences | |
| exe 'silent! keepj keepp %s/\v\e\[%(%(\d;)?\d{1,2})?[mK]//e' .. (&gdefault ? '' : 'g') | |
| " Remove OSC 8 hyperlink sequences: \e]8;;...\e\ or \e]8;;...<BEL> | |
| exe 'silent! keepj keepp %s/\v\e\]8;[^\x07\e]*%(%x07|\e\\)//e' .. (&gdefault ? '' : 'g') | |
| " Remove empty lines above the header | |
| call cursor(1, 1) | |
| let n = search(".*(.*)", "c") | |
| if n > 1 | |
| exe "1," . n-1 . "d" | |
| endif | |
| " Finished preprocessing the buffer, prevent any further modifications | |
| setlocal nomodified nomodifiable | |
| " Make this an unlisted, readonly scratch buffer | |
| setlocal buftype=nofile noswapfile bufhidden=hide nobuflisted readonly | |
| " Set filetype to man even if ftplugin is disabled | |
| setlocal filetype=man | |
| runtime ftplugin/man.vim | |
| endfunction | |