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" Vim filetype plugin autoload file
" Language: man
" Maintainer: Jason Franklin <jason@oneway.dev>
" Maintainer: SungHyun Nam <goweol@gmail.com>
" Autoload Split: Bram Moolenaar
" Last Change: 2024 Jan 17 (make it work on AIX, see #13847)
let s:cpo_save = &cpo
set cpo-=C
let s:man_tag_depth = 0
let s:man_sect_arg = ""
let s:man_find_arg = "-w"
try
if !has("win32") && $OSTYPE !~ 'cygwin\|linux'
" cache the value
let uname_s = system('uname -s')
if uname_s =~ "SunOS" && system('uname -r') =~ "^5"
" Special Case for Man on SunOS
let s:man_sect_arg = "-s"
let s:man_find_arg = "-l"
elseif uname_s =~? 'AIX'
" Special Case for Man on AIX
let s:man_sect_arg = ""
let s:man_find_arg = ""
endif
endif
catch /E145:/
" Ignore the error in restricted mode
endtry
unlet! uname_s
func s:ParseIntoPageAndSection()
" Accommodate a reference that terminates in a hyphen.
"
" See init_charset_table() at
" https://git.savannah.gnu.org/cgit/groff.git/tree/src/roff/troff/input.cpp?h=1.22.4#n6794
"
" See can_break_after() at
" https://git.savannah.gnu.org/cgit/groff.git/tree/src/roff/troff/charinfo.h?h=1.22.4#n140
"
" Assumptions and limitations:
" 1) Manual-page references (in consequence of command-related filenames)
" do not contain non-ASCII HYPHENs (0x2010), any terminating HYPHEN
" must have been introduced to mark division of a word at the end of
" a line and can be discarded; whereas similar references may contain
" ASCII HYPHEN-MINUSes (0x002d) and any terminating HYPHEN-MINUS forms
" a compound word in addition to marking word division.
" 2) Well-formed manual-page references always have a section suffix, e.g.
" "git-commit(1)", therefore suspended hyphenated compounds are not
" determined, e.g. [V] (With cursor at _git-merge-_ below...)
" ".................... git-merge- and git-merge-base. (See git-cherry-
" pick(1) and git-cherry(1).)" (... look up "git-merge-pick(1)".)
"
" Note that EM DASH (0x2014), a third stooge from init_charset_table(),
" neither connects nor divides parts of a word.
let str = expand("<cWORD>")
if str =~ '\%u2010$' " HYPHEN (-1).
let str = strpart(str, 0, strridx(str, "\u2010"))
" Append the leftmost WORD (or an empty string) from the line below.
let str .= get(split(get(getbufline(bufnr('%'), line('.') + 1), 0, '')), 0, '')
elseif str =~ '-$' " HYPHEN-MINUS.
" Append the leftmost WORD (or an empty string) from the line below.
let str .= get(split(get(getbufline(bufnr('%'), line('.') + 1), 0, '')), 0, '')
endif
" According to man(1), section name formats vary (MANSECT):
" 1 n l 8 3 2 3posix 3pm 3perl 3am 5 4 9 6 7
let parts = matchlist(str, '\(\k\+\)(\(\k\+\))')
return (len(parts) > 2)
\ ? {'page': parts[1], 'section': parts[2]}
\ : {'page': matchstr(str, '\k\+'), 'section': ''}
endfunc
func dist#man#PreGetPage(cnt)
if a:cnt == 0
let what = s:ParseIntoPageAndSection()
let sect = what.section
let page = what.page
else
let what = s:ParseIntoPageAndSection()
let sect = a:cnt
let page = what.page
endif
call dist#man#GetPage('', sect, page)
endfunc
func s:GetCmdArg(sect, page)
if empty(a:sect)
return shellescape(a:page)
endif
return s:man_sect_arg . ' ' . shellescape(a:sect) . ' ' . shellescape(a:page)
endfunc
func s:FindPage(sect, page)
let l:cmd = printf('man %s %s', s:man_find_arg, s:GetCmdArg(a:sect, a:page))
call system(l:cmd)
if v:shell_error
return 0
endif
return 1
endfunc
func dist#man#GetPage(cmdmods, ...)
if a:0 >= 2
let sect = a:1
let page = a:2
elseif a:0 >= 1
let sect = ""
let page = a:1
else
return
endif
" To support: nmap K :Man <cWORD><CR>
if page ==? '<cword>'
let what = s:ParseIntoPageAndSection()
let sect = what.section
let page = what.page
endif
if !exists('g:ft_man_no_sect_fallback') || (g:ft_man_no_sect_fallback == 0)
if sect != "" && s:FindPage(sect, page) == 0
let sect = ""
endif
endif
if s:FindPage(sect, page) == 0
let msg = 'man.vim: no manual entry for "' . page . '"'
if !empty(sect)
let msg .= ' in section ' . sect
endif
echomsg msg
return
endif
exec "let s:man_tag_buf_".s:man_tag_depth." = ".bufnr("%")
exec "let s:man_tag_lin_".s:man_tag_depth." = ".line(".")
exec "let s:man_tag_col_".s:man_tag_depth." = ".col(".")
let s:man_tag_depth = s:man_tag_depth + 1
let open_cmd = 'edit'
" Use an existing "man" window if it exists, otherwise open a new one.
if &filetype != "man"
let thiswin = winnr()
exe "norm! \<C-W>b"
if winnr() > 1
exe "norm! " . thiswin . "\<C-W>w"
while 1
if &filetype == "man"
break
endif
exe "norm! \<C-W>w"
if thiswin == winnr()
break
endif
endwhile
endif
if &filetype != "man"
if exists("g:ft_man_open_mode")
if g:ft_man_open_mode == 'vert'
let open_cmd = 'vsplit'
elseif g:ft_man_open_mode == 'tab'
let open_cmd = 'tabedit'
else
let open_cmd = 'split'
endif
else
let open_cmd = a:cmdmods . ' split'
endif
endif
endif
silent execute open_cmd . " $HOME/" . page . '.' . sect . '~'
" Avoid warning for editing the dummy file twice
setl buftype=nofile noswapfile
setl fdc=0 ma nofen nonu nornu
%delete _
let unsetwidth = 0
if empty($MANWIDTH)
let $MANWIDTH = winwidth(0)
let unsetwidth = 1
endif
" Ensure Vim is not recursively invoked (man-db does this) when doing ctrl-[
" on a man page reference by unsetting MANPAGER.
" Some versions of env(1) do not support the '-u' option, and in such case
" we set MANPAGER=cat.
if !exists('s:env_has_u')
call system('env -u x true')
let s:env_has_u = (v:shell_error == 0)
endif
let env_cmd = s:env_has_u ? 'env -u MANPAGER' : 'env MANPAGER=cat'
let env_cmd .= ' GROFF_NO_SGR=1'
let man_cmd = env_cmd . ' man ' . s:GetCmdArg(sect, page)
silent exec "r !" . man_cmd
" Emulate piping the buffer through the "col -b" command.
" Ref: https://github.com/vim/vim/issues/12301
exe 'silent! keepjumps keeppatterns %s/\v(.)\b\ze\1?//e' .. (&gdefault ? '' : 'g')
if unsetwidth
let $MANWIDTH = ''
endif
" Remove blank lines from top and bottom.
while line('$') > 1 && getline(1) =~ '^\s*$'
1delete _
endwhile
while line('$') > 1 && getline('$') =~ '^\s*$'
$delete _
endwhile
1
setl ft=man nomod
setl bufhidden=hide
setl nobuflisted
setl noma
endfunc
func dist#man#PopPage()
if s:man_tag_depth > 0
let s:man_tag_depth = s:man_tag_depth - 1
exec "let s:man_tag_buf=s:man_tag_buf_".s:man_tag_depth
exec "let s:man_tag_lin=s:man_tag_lin_".s:man_tag_depth
exec "let s:man_tag_col=s:man_tag_col_".s:man_tag_depth
exec s:man_tag_buf."b"
call cursor(s:man_tag_lin, s:man_tag_col)
exec "unlet s:man_tag_buf_".s:man_tag_depth
exec "unlet s:man_tag_lin_".s:man_tag_depth
exec "unlet s:man_tag_col_".s:man_tag_depth
unlet s:man_tag_buf s:man_tag_lin s:man_tag_col
endif
endfunc
let &cpo = s:cpo_save
unlet s:cpo_save
" vim: set sw=2 ts=8 noet:
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