1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
" 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: 2023 Jun 28
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") && $OSTYPE !~ 'cygwin\|linux' && system('uname -s') =~ "SunOS" && system('uname -r') =~ "^5"
let s:man_sect_arg = "-s"
let s:man_find_arg = "-l"
endif
catch /E145:/
" Ignore the error in restricted mode
endtry
func s:ParseIntoPageAndSection()
" Accommodate a reference that terminates in a hyphen.
"
" See init_charset_table() at
" https://git.savannah.gnu.org/cgit/groff.git/tree/src/roff/troff/input.cpp?h=1.22.4#n6794
"
" See can_break_after() at
" https://git.savannah.gnu.org/cgit/groff.git/tree/src/roff/troff/charinfo.h?h=1.22.4#n140
"
" Assumptions and limitations:
" 1) Manual-page references (in consequence of command-related filenames)
" do not contain non-ASCII HYPHENs (0x2010), any terminating HYPHEN
" must have been introduced to mark division of a word at the end of
" a line and can be discarded; whereas similar references may contain
" ASCII HYPHEN-MINUSes (0x002d) and any terminating HYPHEN-MINUS forms
" a compound word in addition to marking word division.
" 2) Well-formed manual-page references always have a section suffix, e.g.
" "git-commit(1)", therefore suspended hyphenated compounds are not
" determined, e.g. [V] (With cursor at _git-merge-_ below...)
" ".................... git-merge- and git-merge-base. (See git-cherry-
" pick(1) and git-cherry(1).)" (... look up "git-merge-pick(1)".)
"
" Note that EM DASH (0x2014), a third stooge from init_charset_table(),
" neither connects nor divides parts of a word.
let str = expand("<cWORD>")
if str =~ '\%u2010$' " 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
silent! keepjumps keeppatterns %s/\v(.)\b\ze\1?//ge
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:
|