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" Compatibility wrappers for different (Neo)Vim versions and platforms.
if neomake#utils#IsRunningWindows()
let g:neomake#compat#dev_null = 'NUL'
else
let g:neomake#compat#dev_null = '/dev/null'
endif
if v:version >= 704
function! neomake#compat#getbufvar(buf, key, def) abort
return getbufvar(a:buf, a:key, a:def)
endfunction
function! neomake#compat#getwinvar(win, key, def) abort
return getwinvar(a:win, a:key, a:def)
endfunction
else
function! neomake#compat#getbufvar(buf, key, def) abort
return get(getbufvar(a:buf, ''), a:key, a:def)
endfunction
function! neomake#compat#getwinvar(win, key, def) abort
return get(getwinvar(a:win, ''), a:key, a:def)
endfunction
endif
unlockvar neomake#compat#json_true
unlockvar neomake#compat#json_false
unlockvar neomake#compat#json_null
unlockvar neomake#compat#json_none
if exists('v:none')
let neomake#compat#json_none = v:none
else
let neomake#compat#json_none = []
endif
if exists('*json_decode')
let neomake#compat#json_true = v:true
let neomake#compat#json_false = v:false
let neomake#compat#json_null = v:null
if has('nvim')
function! neomake#compat#json_decode(json) abort
if a:json is# ''
" Prevent Neovim from throwing E474: Attempt to decode a blank string.
return g:neomake#compat#json_none
endif
return json_decode(a:json)
endfunction
else
function! neomake#compat#json_decode(json) abort
return json_decode(a:json)
endfunction
endif
else
let neomake#compat#json_true = 1
let neomake#compat#json_false = 0
function! s:json_null() abort
endfunction
let neomake#compat#json_null = [function('s:json_null')]
" Via Syntastic (https://github.com/vim-syntastic/syntastic/blob/6fb14d624b6081459360fdbba743f82cf84c8f92/autoload/syntastic/preprocess.vim#L576-L607),
" based on https://github.com/MarcWeber/vim-addon-json-encoding/blob/master/autoload/json_encoding.vim.
" @vimlint(EVL102, 1, l:true)
" @vimlint(EVL102, 1, l:false)
" @vimlint(EVL102, 1, l:null)
function! neomake#compat#json_decode(json) abort " {{{2
if a:json ==# ''
return g:neomake#compat#json_none
endif
" The following is inspired by https://github.com/MarcWeber/vim-addon-manager and
" http://stackoverflow.com/questions/17751186/iterating-over-a-string-in-vimscript-or-parse-a-json-file/19105763#19105763
" A hat tip to Marc Weber for this trick
" Replace newlines, which eval() does not like.
let json = substitute(a:json, "\n", '', 'g')
if substitute(json, '\v\"%(\\.|[^"\\])*\"|true|false|null|[+-]?\d+%(\.\d+%([Ee][+-]?\d+)?)?', '', 'g') !~# "[^,:{}[\\] \t]"
" JSON artifacts
let true = g:neomake#compat#json_true
let false = g:neomake#compat#json_false
let null = g:neomake#compat#json_null
try
let object = eval(json)
catch
throw 'Neomake: Failed to parse JSON input: '.v:exception
endtry
else
throw 'Neomake: Failed to parse JSON input: invalid input'
endif
return object
endfunction " }}}2
" @vimlint(EVL102, 0, l:true)
" @vimlint(EVL102, 0, l:false)
" @vimlint(EVL102, 0, l:null)
endif
lockvar neomake#compat#json_true
lockvar neomake#compat#json_false
lockvar neomake#compat#json_null
if exists('*uniq')
function! neomake#compat#uniq(l) abort
return uniq(a:l)
endfunction
else
function! neomake#compat#uniq(l) abort
let n = len(a:l)
if n < 2
return a:l
endif
let prev = a:l[0]
let idx = 1
while idx < n
if a:l[idx] ==# prev && type(a:l[idx]) == type(prev)
call remove(a:l, idx)
let n -= 1
else
let prev = a:l[idx]
let idx += 1
endif
endwhile
return a:l
endfunction
endif
if exists('*reltimefloat')
function! neomake#compat#reltimefloat() abort
return reltimefloat(reltime())
endfunction
else
function! neomake#compat#reltimefloat() abort
let t = split(reltimestr(reltime()), '\V.')
return str2float(t[0] . '.' . t[1])
endfunction
endif
" Wrapper around systemlist() that supports a list for a:cmd.
" It returns an empty string on error.
" NOTE: Neovim before 0.2.0 would throw an error (which is caught), but it
" does not set v:shell_error!
function! neomake#compat#systemlist(cmd) abort
if empty(a:cmd)
return []
endif
if has('nvim') && exists('*systemlist')
" @vimlint(EVL108, 1)
if !has('nvim-0.2.0')
try
return systemlist(a:cmd)
catch /^Vim\%((\a\+)\)\=:E902/
return ''
endtry
endif
" @vimlint(EVL108, 0)
return systemlist(a:cmd)
endif
if type(a:cmd) == type([])
let cmd = join(map(a:cmd, 'neomake#utils#shellescape(v:val)'))
else
let cmd = a:cmd
endif
if exists('*systemlist')
return systemlist(cmd)
endif
return split(system(cmd), '\n')
endfunction
function! neomake#compat#globpath_list(path, pattern, suf) abort
if v:version >= 705 || (v:version == 704 && has('patch279'))
return globpath(a:path, a:pattern, a:suf, 1)
endif
return split(globpath(a:path, a:pattern, a:suf), '\n')
endfunction
function! neomake#compat#glob_list(pattern) abort
if v:version <= 703
return split(glob(a:pattern, 1), '\n')
endif
return glob(a:pattern, 1, 1)
endfunction
if neomake#utils#IsRunningWindows()
" Windows needs a shell to handle PATH/%PATHEXT% etc.
function! neomake#compat#get_argv(exe, args, args_is_list) abort
let prefix = &shell.' '.&shellcmdflag.' '
if a:args_is_list
if a:exe ==# &shell && get(a:args, 0) ==# &shellcmdflag
" Remove already existing &shell/&shellcmdflag from e.g. NeomakeSh.
let argv = join(a:args[1:])
else
let argv = join(map(copy([a:exe] + a:args), 'neomake#utils#shellescape(v:val)'))
endif
else
let argv = a:exe . (empty(a:args) ? '' : ' '.a:args)
if argv[0:len(prefix)-1] ==# prefix
return argv
endif
endif
return prefix.argv
endfunction
elseif has('nvim')
function! neomake#compat#get_argv(exe, args, args_is_list) abort
if a:args_is_list
return [a:exe] + a:args
endif
return a:exe . (empty(a:args) ? '' : ' '.a:args)
endfunction
elseif neomake#has_async_support() " Vim-async.
function! neomake#compat#get_argv(exe, args, args_is_list) abort
if a:args_is_list
return [a:exe] + a:args
endif
" Use a shell to handle argv properly (Vim splits at spaces).
let argv = a:exe . (empty(a:args) ? '' : ' '.a:args)
return [&shell, &shellcmdflag, argv]
endfunction
else
" Vim (synchronously), via system().
function! neomake#compat#get_argv(exe, args, args_is_list) abort
if a:args_is_list
return join(map(copy([a:exe] + a:args), 'neomake#utils#shellescape(v:val)'))
endif
return a:exe . (empty(a:args) ? '' : ' '.a:args)
endfunction
endif
if v:version >= 704 || (v:version == 703 && has('patch831'))
function! neomake#compat#gettabwinvar(t, w, v, d) abort
return gettabwinvar(a:t, a:w, a:v, a:d)
endfunction
else
" Wrapper around gettabwinvar that has no default (older Vims).
function! neomake#compat#gettabwinvar(t, w, v, d) abort
let r = gettabwinvar(a:t, a:w, a:v)
if r is# ''
unlet r
let r = a:d
endif
return r
endfunction
endif
" Not really necessary for now, but allows to overwriting and extending.
if exists('*nvim_get_mode')
function! neomake#compat#get_mode() abort
let mode = nvim_get_mode()
return mode.mode
endfunction
else
function! neomake#compat#get_mode() abort
return mode(1)
endfunction
endif
function! neomake#compat#in_completion() abort
if pumvisible()
return 1
endif
if has('patch-8.0.0283')
let mode = mode(1)
if mode[1] ==# 'c' || mode[1] ==# 'x'
return 1
endif
endif
return 0
endfunction
let s:prev_windows = []
if exists('*win_getid')
function! neomake#compat#save_prev_windows() abort
call add(s:prev_windows, [win_getid(winnr('#')), win_getid(winnr())])
endfunction
function! neomake#compat#restore_prev_windows() abort
" Go back, maintaining the '#' window (CTRL-W_p).
let [aw_id, pw_id] = remove(s:prev_windows, 0)
let pw = win_id2win(pw_id)
if !pw
call neomake#log#debug(printf(
\ 'Cannot restore previous windows (previous window with ID %d not found).',
\ pw_id))
elseif winnr() != pw
let aw = win_id2win(aw_id)
if aw
exec aw . 'wincmd w'
endif
exec pw . 'wincmd w'
endif
endfunction
else
function! neomake#compat#save_prev_windows() abort
call add(s:prev_windows, [winnr('#'), winnr()])
endfunction
function! neomake#compat#restore_prev_windows() abort
" Go back, maintaining the '#' window (CTRL-W_p).
let [aw, pw] = remove(s:prev_windows, 0)
if pw > winnr('$')
call neomake#log#debug(printf(
\ 'Cannot restore previous windows (%d > %d).',
\ pw, winnr('$')))
elseif winnr() != pw
if aw
exec aw . 'wincmd w'
endif
exec pw . 'wincmd w'
endif
endfunction
endif
if v:version >= 704 || (v:version == 703 && has('patch442'))
function! neomake#compat#doautocmd(event) abort
exec 'doautocmd <nomodeline> ' . a:event
endfunction
else
function! neomake#compat#doautocmd(event) abort
exec 'doautocmd ' . a:event
endfunction
endif
" vim: ts=4 sw=4 et
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