neovim/runtime/scripts/less.vim
Christian Clason 82b02ae2f2 fix(runtime): clean up one-off scripts
Problem: Some runtime files no longer spark joy.

Solution: Kondo the place up.

Still sparks _some_ joy (moved to new `runtime/scripts` folder):
* `macros/less.*`
* `mswin.vim`
* `tools/emoji_list.lua`

No longer sparks joy (removed):
* `macmap.vim` (gvimrc file; not useful in Nvim)
* `tools/check_colors.vim` (no longer useful with new default colorscheme and treesitter)
* `macros/editexisting.vim` (throws error on current Nvim)
* `macros/justify.vim` (obsolete shim for `packadd! justify`)
* `macros/matchit.vim` (same)
* `macros/shellmenu.vim` (same)
* `macros/swapmous.vim` (same)
2024-10-15 20:50:21 +02:00

408 lines
7.8 KiB
VimL

" Vim script to work like "less"
" Maintainer: The Vim Project <https://github.com/vim/vim>
" Last Change: 2024 Feb 15
" Former Maintainer: Bram Moolenaar <Bram@vim.org>
" Avoid loading this file twice, allow the user to define his own script.
if exists("loaded_less")
finish
endif
let loaded_less = 1
" If not reading from stdin, skip files that can't be read.
" Exit if there is no file at all.
if argc() > 0
let s:i = 0
while 1
if filereadable(argv(s:i))
if s:i != 0
sleep 3
endif
break
endif
if isdirectory(argv(s:i))
echomsg "Skipping directory " . argv(s:i)
elseif getftime(argv(s:i)) < 0
echomsg "Skipping non-existing file " . argv(s:i)
else
echomsg "Skipping unreadable file " . argv(s:i)
endif
echo "\n"
let s:i = s:i + 1
if s:i == argc()
quit
endif
next
endwhile
endif
" we don't want 'compatible' here
if &cp
set nocp
endif
" enable syntax highlighting if not done already
if !get(g:, 'syntax_on', 0)
syntax enable
endif
set so=0
set hlsearch
set incsearch
nohlsearch
" Don't remember file names and positions
set shada=
set nows
" Inhibit screen updates while searching
let s:lz = &lz
set lz
" Allow the user to define a function, which can set options specifically for
" this script.
if exists('*LessInitFunc')
call LessInitFunc()
endif
" Used after each command: put cursor at end and display position
if &wrap
noremap <SID>L L0:redraw<CR>:file<CR>
au VimEnter * normal! L0
else
noremap <SID>L Lg0:redraw<CR>:file<CR>
au VimEnter * normal! Lg0
endif
" When reading from stdin don't consider the file modified.
au VimEnter * set nomod
" Can't modify the text or write the file.
set nomodifiable readonly
" Give help
noremap h :call <SID>Help()<CR>
map H h
fun! s:Help()
echo "<Space> One page forward b One page backward"
echo "d Half a page forward u Half a page backward"
echo "<Enter> One line forward k One line backward"
echo "G End of file g Start of file"
echo "N% percentage in file"
echo "\n"
echo "/pattern Search for pattern ?pattern Search backward for pattern"
echo "n next pattern match N Previous pattern match"
if &foldmethod != "manual"
echo "\n"
echo "zR open all folds zm increase fold level"
endif
echo "\n"
echo ":n<Enter> Next file :p<Enter> Previous file"
echo "\n"
echo "q Quit v Edit file"
let i = input("Hit Enter to continue")
endfun
" Scroll one page forward
noremap <script> <Space> :call <SID>NextPage()<CR><SID>L
map <C-V> <Space>
map f <Space>
map <C-F> <Space>
map <PageDown> <Space>
map <kPageDown> <Space>
map <S-Down> <Space>
" If 'foldmethod' was changed keep the "z" commands, e.g. "zR" to open all
" folds.
if &foldmethod == "manual"
map z <Space>
endif
map <Esc><Space> <Space>
fun! s:NextPage()
if line(".") == line("$")
if argidx() + 1 >= argc()
" Don't quit at the end of the last file
return
endif
next
1
else
exe "normal! \<C-F>"
endif
endfun
" Re-read file and page forward "tail -f"
map F :e<CR>G<SID>L:sleep 1<CR>F
" Scroll half a page forward
noremap <script> d <C-D><SID>L
map <C-D> d
" Scroll one line forward
noremap <script> <CR> <C-E><SID>L
map <C-N> <CR>
map e <CR>
map <C-E> <CR>
map j <CR>
map <C-J> <CR>
map <Down> <CR>
" Scroll one page backward
noremap <script> b <C-B><SID>L
map <C-B> b
map <PageUp> b
map <kPageUp> b
map <S-Up> b
map w b
map <Esc>v b
" Scroll half a page backward
noremap <script> u <C-U><SID>L
noremap <script> <C-U> <C-U><SID>L
" Scroll one line backward
noremap <script> k <C-Y><SID>L
map y k
map <C-Y> k
map <C-P> k
map <C-K> k
map <Up> k
" Redraw
noremap <script> r <C-L><SID>L
noremap <script> <C-R> <C-L><SID>L
noremap <script> R <C-L><SID>L
" Start of file
noremap <script> g gg<SID>L
map < g
map <Esc>< g
map <Home> g
map <kHome> g
" End of file
noremap <script> G G<SID>L
map > G
map <Esc>> G
map <End> G
map <kEnd> G
" Go to percentage
noremap <script> % %<SID>L
map p %
" Search
noremap <script> / H$:call <SID>Forward()<CR>/
if &wrap
noremap <script> ? H0:call <SID>Backward()<CR>?
else
noremap <script> ? Hg0:call <SID>Backward()<CR>?
endif
fun! s:Forward()
" Searching forward
noremap <script> n H$nzt<SID>L
if &wrap
noremap <script> N H0Nzt<SID>L
else
noremap <script> N Hg0Nzt<SID>L
endif
cnoremap <silent> <script> <CR> <CR>:cunmap <lt>CR><CR>zt<SID>L
endfun
fun! s:Backward()
" Searching backward
if &wrap
noremap <script> n H0nzt<SID>L
else
noremap <script> n Hg0nzt<SID>L
endif
noremap <script> N H$Nzt<SID>L
cnoremap <silent> <script> <CR> <CR>:cunmap <lt>CR><CR>zt<SID>L
endfun
call s:Forward()
cunmap <CR>
" Quitting
noremap q :q<CR>
" Switch to editing (switch off less mode)
map v :silent call <SID>End()<CR>
fun! s:End()
set modifiable noreadonly
if exists('s:lz')
let &lz = s:lz
endif
if !empty(maparg('h'))
unmap h
endif
if !empty(maparg('H'))
unmap H
endif
if !empty(maparg('<Space>'))
unmap <Space>
endif
if !empty(maparg('<C-V>'))
unmap <C-V>
endif
if !empty(maparg('f'))
unmap f
endif
if !empty(maparg('<C-F>'))
unmap <C-F>
endif
if !empty(maparg('z'))
unmap z
endif
if !empty(maparg('<Esc><Space>'))
unmap <Esc><Space>
endif
if !empty(maparg('F'))
unmap F
endif
if !empty(maparg('d'))
unmap d
endif
if !empty(maparg('<C-D>'))
unmap <C-D>
endif
if !empty(maparg('<CR>'))
unmap <CR>
endif
if !empty(maparg('<C-N>'))
unmap <C-N>
endif
if !empty(maparg('e'))
unmap e
endif
if !empty(maparg('<C-E>'))
unmap <C-E>
endif
if !empty(maparg('j'))
unmap j
endif
if !empty(maparg('<C-J>'))
unmap <C-J>
endif
if !empty(maparg('b'))
unmap b
endif
if !empty(maparg('<C-B>'))
unmap <C-B>
endif
if !empty(maparg('w'))
unmap w
endif
if !empty(maparg('<Esc>v'))
unmap <Esc>v
endif
if !empty(maparg('u'))
unmap u
endif
if !empty(maparg('<C-U>'))
unmap <C-U>
endif
if !empty(maparg('k'))
unmap k
endif
if !empty(maparg('y'))
unmap y
endif
if !empty(maparg('<C-Y>'))
unmap <C-Y>
endif
if !empty(maparg('<C-P>'))
unmap <C-P>
endif
if !empty(maparg('<C-K>'))
unmap <C-K>
endif
if !empty(maparg('r'))
unmap r
endif
if !empty(maparg('<C-R>'))
unmap <C-R>
endif
if !empty(maparg('R'))
unmap R
endif
if !empty(maparg('g'))
unmap g
endif
if !empty(maparg('<'))
unmap <
endif
if !empty(maparg('<Esc><'))
unmap <Esc><
endif
if !empty(maparg('G'))
unmap G
endif
if !empty(maparg('>'))
unmap >
endif
if !empty(maparg('<Esc>>'))
unmap <Esc>>
endif
if !empty(maparg('%'))
unmap %
endif
if !empty(maparg('p'))
unmap p
endif
if !empty(maparg('n'))
unmap n
endif
if !empty(maparg('N'))
unmap N
endif
if !empty(maparg('q'))
unmap q
endif
if !empty(maparg('v'))
unmap v
endif
if !empty(maparg('/'))
unmap /
endif
if !empty(maparg('?'))
unmap ?
endif
if !empty(maparg('<Up>'))
unmap <Up>
endif
if !empty(maparg('<Down>'))
unmap <Down>
endif
if !empty(maparg('<PageDown>'))
unmap <PageDown>
endif
if !empty(maparg('<kPageDown>'))
unmap <kPageDown>
endif
if !empty(maparg('<PageUp>'))
unmap <PageUp>
endif
if !empty(maparg('<kPageUp>'))
unmap <kPageUp>
endif
if !empty(maparg('<S-Down>'))
unmap <S-Down>
endif
if !empty(maparg('<S-Up>'))
unmap <S-Up>
endif
if !empty(maparg('<Home>'))
unmap <Home>
endif
if !empty(maparg('<kHome>'))
unmap <kHome>
endif
if !empty(maparg('<End>'))
unmap <End>
endif
if !empty(maparg('<kEnd>'))
unmap <kEnd>
endif
endfun
" vim: sw=2