“ Copyright © 2017 Junegunn Choi ” “ MIT License ” “ Permission is hereby granted, free of charge, to any person obtaining ” a copy of this software and associated documentation files (the “ ”Software“), to deal in the Software without restriction, including ” without limitation the rights to use, copy, modify, merge, publish, “ distribute, sublicense, and/or sell copies of the Software, and to ” permit persons to whom the Software is furnished to do so, subject to “ the following conditions: ” “ The above copyright notice and this permission notice shall be ” included in all copies or substantial portions of the Software. “ ” THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, “ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF ” MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND “ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE ” LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION “ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION ” WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

if exists('g:loaded_fzf')

finish

endif let g:loaded_fzf = 1

let s:is_win = has('win32') || has('win64') if s:is_win && &shellslash

set noshellslash
let s:base_dir = expand('<sfile>:h:h')
set shellslash

else

let s:base_dir = expand('<sfile>:h:h')

endif if s:is_win

let s:term_marker = '&::FZF'

function! s:fzf_call(fn, ...)
  let shellslash = &shellslash
  try
    set noshellslash
    return call(a:fn, a:000)
  finally
    let &shellslash = shellslash
  endtry
endfunction

" Use utf-8 for fzf.vim commands
" Return array of shell commands for cmd.exe
function! s:enc_to_cp(str)
  if !has('iconv')
    return a:str
  endif
  if !exists('s:codepage')
    let s:codepage = libcallnr('kernel32.dll', 'GetACP', 0)
  endif
  return iconv(a:str, &encoding, 'cp'.s:codepage)
endfunction
function! s:wrap_cmds(cmds)
  return map([
    \ '@echo off',
    \ 'setlocal enabledelayedexpansion']
  \ + (has('gui_running') ? ['set TERM= > nul'] : [])
  \ + (type(a:cmds) == type([]) ? a:cmds : [a:cmds])
  \ + ['endlocal'],
  \ '<SID>enc_to_cp(v:val."\r")')
endfunction

else

let s:term_marker = ";#FZF"

function! s:fzf_call(fn, ...)
  return call(a:fn, a:000)
endfunction

function! s:wrap_cmds(cmds)
  return a:cmds
endfunction

function! s:enc_to_cp(str)
  return a:str
endfunction

endif

function! s:shellesc_cmd(arg)

let escaped = substitute(a:arg, '[&|<>()@^]', '^&', 'g')
let escaped = substitute(escaped, '%', '%%', 'g')
let escaped = substitute(escaped, '"', '\\^&', 'g')
let escaped = substitute(escaped, '\(\\\+\)\(\\^\)', '\1\1\2', 'g')
return '^"'.substitute(escaped, '\(\\\+\)$', '\1\1', '').'^"'

endfunction

function! fzf#shellescape(arg, …)

let shell = get(a:000, 0, s:is_win ? 'cmd.exe' : 'sh')
if shell =~# 'cmd.exe$'
  return s:shellesc_cmd(a:arg)
endif
return s:fzf_call('shellescape', a:arg)

endfunction

function! s:fzf_getcwd()

return s:fzf_call('getcwd')

endfunction

function! s:fzf_fnamemodify(fname, mods)

return s:fzf_call('fnamemodify', a:fname, a:mods)

endfunction

function! s:fzf_expand(fmt)

return s:fzf_call('expand', a:fmt, 1)

endfunction

function! s:fzf_tempname()

return s:fzf_call('tempname')

endfunction

let s:layout_keys = ['window', 'tmux', 'up', 'down', 'left', 'right'] let s:fzf_go = s:base_dir.'/bin/fzf' let s:fzf_tmux = s:base_dir.'/bin/fzf-tmux'

let s:cpo_save = &cpo set cpo&vim

function! s:popup_support()

return has('nvim') ? has('nvim-0.4') : has('popupwin') && has('patch-8.2.191')

endfunction

function! s:default_layout()

return s:popup_support()
      \ ? { 'window' : { 'width': 0.9, 'height': 0.6 } }
      \ : { 'down': '~40%' }

endfunction

function! fzf#install()

if s:is_win && !has('win32unix')
  let script = s:base_dir.'/install.ps1'
  if !filereadable(script)
    throw script.' not found'
  endif
  let script = 'powershell -ExecutionPolicy Bypass -file ' . script
else
  let script = s:base_dir.'/install'
  if !executable(script)
    throw script.' not found'
  endif
  let script .= ' --bin'
endif

call s:warn('Running fzf installer ...')
call system(script)
if v:shell_error
  throw 'Failed to download fzf: '.script
endif

endfunction

let s:versions = {} function s:get_version(bin)

if has_key(s:versions, a:bin)
  return s:versions[a:bin]
end
let command = a:bin . ' --version --no-height'
let output = systemlist(command)
if v:shell_error || empty(output)
  return ''
endif
let ver = matchstr(output[-1], '[0-9.]\+')
let s:versions[a:bin] = ver
return ver

endfunction

function! s:compare_versions(a, b)

let a = split(a:a, '\.')
let b = split(a:b, '\.')
for idx in range(0, max([len(a), len(b)]) - 1)
  let v1 = str2nr(get(a, idx, 0))
  let v2 = str2nr(get(b, idx, 0))
  if     v1 < v2 | return -1
  elseif v1 > v2 | return 1
  endif
endfor
return 0

endfunction

function! s:compare_binary_versions(a, b)

return s:compare_versions(s:get_version(a:a), s:get_version(a:b))

endfunction

let s:checked = {} function! fzf#exec(…)

if !exists('s:exec')
  let binaries = []
  if executable('fzf')
    call add(binaries, 'fzf')
  endif
  if executable(s:fzf_go)
    call add(binaries, s:fzf_go)
  endif

  if empty(binaries)
    if input('fzf executable not found. Download binary? (y/n) ') =~? '^y'
      redraw
      call fzf#install()
      return fzf#exec()
    else
      redraw
      throw 'fzf executable not found'
    endif
  elseif len(binaries) > 1
    call sort(binaries, 's:compare_binary_versions')
  endif

  let s:exec = binaries[-1]
endif

if a:0 && !has_key(s:checked, a:1)
  let fzf_version = s:get_version(s:exec)
  if empty(fzf_version)
    let message = printf('Failed to run "%s --version"', s:exec)
    unlet s:exec
    throw message
  end

  if s:compare_versions(fzf_version, a:1) >= 0
    let s:checked[a:1] = 1
    return s:exec
  elseif a:0 < 2 && input(printf('You need fzf %s or above. Found: %s. Download binary? (y/n) ', a:1, fzf_version)) =~? '^y'
    let s:versions = {}
    unlet s:exec
    redraw
    call fzf#install()
    return fzf#exec(a:1, 1)
  else
    throw printf('You need to upgrade fzf (required: %s or above)', a:1)
  endif
endif

return s:exec

endfunction

function! s:tmux_enabled()

if has('gui_running') || !exists('$TMUX')
  return 0
endif

if exists('s:tmux')
  return s:tmux
endif

let s:tmux = 0
if !executable(s:fzf_tmux)
  if executable('fzf-tmux')
    let s:fzf_tmux = 'fzf-tmux'
  else
    return 0
  endif
endif

let output = system('tmux -V')
let s:tmux = !v:shell_error && output >= 'tmux 1.7'
return s:tmux

endfunction

function! s:escape(path)

let path = fnameescape(a:path)
return s:is_win ? escape(path, '$') : path

endfunction

function! s:error(msg)

echohl ErrorMsg
echom a:msg
echohl None

endfunction

function! s:warn(msg)

echohl WarningMsg
echom a:msg
echohl None

endfunction

function! s:has_any(dict, keys)

for key in a:keys
  if has_key(a:dict, key)
    return 1
  endif
endfor
return 0

endfunction

function! s:open(cmd, target)

if stridx('edit', a:cmd) == 0 && s:fzf_fnamemodify(a:target, ':p') ==# s:fzf_expand('%:p')
  return
endif
execute a:cmd s:escape(a:target)

endfunction

function! s:common_sink(action, lines) abort

if len(a:lines) < 2
  return
endif
let key = remove(a:lines, 0)
let Cmd = get(a:action, key, 'e')
if type(Cmd) == type(function('call'))
  return Cmd(a:lines)
endif
if len(a:lines) > 1
  augroup fzf_swap
    autocmd SwapExists * let v:swapchoice='o'
          \| call s:warn('fzf: E325: swap file exists: '.s:fzf_expand('<afile>'))
  augroup END
endif
try
  let empty = empty(s:fzf_expand('%')) && line('$') == 1 && empty(getline(1)) && !&modified
  " Preserve the current working directory in case it's changed during
  " the execution (e.g. `set autochdir` or `autocmd BufEnter * lcd ...`)
  let cwd = exists('w:fzf_pushd') ? w:fzf_pushd.dir : expand('%:p:h')
  for item in a:lines
    if item[0] != '~' && item !~ (s:is_win ? '^[A-Z]:\' : '^/')
      let sep = s:is_win ? '\' : '/'
      let item = join([cwd, item], cwd[len(cwd)-1] == sep ? '' : sep)
    endif
    if empty
      execute 'e' s:escape(item)
      let empty = 0
    else
      call s:open(Cmd, item)
    endif
    if !has('patch-8.0.0177') && !has('nvim-0.2') && exists('#BufEnter')
          \ && isdirectory(item)
      doautocmd BufEnter
    endif
  endfor
catch /^Vim:Interrupt$/
finally
  silent! autocmd! fzf_swap
endtry

endfunction

function! s:get_color(attr, …)

let gui = !s:is_win && !has('win32unix') && has('termguicolors') && &termguicolors
let fam = gui ? 'gui' : 'cterm'
let pat = gui ? '^#[a-f0-9]\+' : '^[0-9]\+$'
for group in a:000
  let code = synIDattr(synIDtrans(hlID(group)), a:attr, fam)
  if code =~? pat
    return code
  endif
endfor
return ''

endfunction

function! s:defaults()

let rules = copy(get(g:, 'fzf_colors', {}))
let colors = join(map(items(filter(map(rules, 'call("s:get_color", v:val)'), '!empty(v:val)')), 'join(v:val, ":")'), ',')
return empty(colors) ? '' : fzf#shellescape('--color='.colors)

endfunction

function! s:validate_layout(layout)

for key in keys(a:layout)
  if index(s:layout_keys, key) < 0
    throw printf('Invalid entry in g:fzf_layout: %s (allowed: %s)%s',
          \ key, join(s:layout_keys, ', '), key == 'options' ? '. Use $FZF_DEFAULT_OPTS.' : '')
  endif
endfor
return a:layout

endfunction

function! s:evaluate_opts(options)

return type(a:options) == type([]) ?
      \ join(map(copy(a:options), 'fzf#shellescape(v:val)')) : a:options

endfunction

“ [name string,] [opts dict,] [fullscreen boolean] function! fzf#wrap(…)

let args = ['', {}, 0]
let expects = map(copy(args), 'type(v:val)')
let tidx = 0
for arg in copy(a:000)
  let tidx = index(expects, type(arg) == 6 ? type(0) : type(arg), tidx)
  if tidx < 0
    throw 'Invalid arguments (expected: [name string] [opts dict] [fullscreen boolean])'
  endif
  let args[tidx] = arg
  let tidx += 1
  unlet arg
endfor
let [name, opts, bang] = args

if len(name)
  let opts.name = name
end

" Layout: g:fzf_layout (and deprecated g:fzf_height)
if bang
  for key in s:layout_keys
    if has_key(opts, key)
      call remove(opts, key)
    endif
  endfor
elseif !s:has_any(opts, s:layout_keys)
  if !exists('g:fzf_layout') && exists('g:fzf_height')
    let opts.down = g:fzf_height
  else
    let opts = extend(opts, s:validate_layout(get(g:, 'fzf_layout', s:default_layout())))
  endif
endif

" Colors: g:fzf_colors
let opts.options = s:defaults() .' '. s:evaluate_opts(get(opts, 'options', ''))

" History: g:fzf_history_dir
if len(name) && len(get(g:, 'fzf_history_dir', ''))
  let dir = s:fzf_expand(g:fzf_history_dir)
  if !isdirectory(dir)
    call mkdir(dir, 'p')
  endif
  let history = fzf#shellescape(dir.'/'.name)
  let opts.options = join(['--history', history, opts.options])
endif

" Action: g:fzf_action
if !s:has_any(opts, ['sink', 'sinklist', 'sink*'])
  let opts._action = get(g:, 'fzf_action', s:default_action)
  let opts.options .= ' --expect='.join(keys(opts._action), ',')
  function! opts.sinklist(lines) abort
    return s:common_sink(self._action, a:lines)
  endfunction
  let opts['sink*'] = opts.sinklist " For backward compatibility
endif

return opts

endfunction

function! s:use_sh()

let [shell, shellslash, shellcmdflag, shellxquote] = [&shell, &shellslash, &shellcmdflag, &shellxquote]
if s:is_win
  set shell=cmd.exe
  set noshellslash
  let &shellcmdflag = has('nvim') ? '/s /c' : '/c'
  let &shellxquote = has('nvim') ? '"' : '('
else
  set shell=sh
endif
return [shell, shellslash, shellcmdflag, shellxquote]

endfunction

function! fzf#run(…) abort try

let [shell, shellslash, shellcmdflag, shellxquote] = s:use_sh()

let dict   = exists('a:1') ? copy(a:1) : {}
let temps  = { 'result': s:fzf_tempname() }
let optstr = s:evaluate_opts(get(dict, 'options', ''))
try
  let fzf_exec = fzf#shellescape(fzf#exec())
catch
  throw v:exception
endtry

if !s:present(dict, 'dir')
  let dict.dir = s:fzf_getcwd()
endif
if has('win32unix') && s:present(dict, 'dir')
  let dict.dir = fnamemodify(dict.dir, ':p')
endif

if has_key(dict, 'source')
  let source = remove(dict, 'source')
  let type = type(source)
  if type == 1
    let source_command = source
  elseif type == 3
    let temps.input = s:fzf_tempname()
    call writefile(source, temps.input)
    let source_command = (s:is_win ? 'type ' : 'cat ').fzf#shellescape(temps.input)
  else
    throw 'Invalid source type'
  endif
else
  let source_command = ''
endif

let prefer_tmux = get(g:, 'fzf_prefer_tmux', 0) || has_key(dict, 'tmux')
let use_height = has_key(dict, 'down') && !has('gui_running') &&
      \ !(has('nvim') || s:is_win || has('win32unix') || s:present(dict, 'up', 'left', 'right', 'window')) &&
      \ executable('tput') && filereadable('/dev/tty')
let has_vim8_term = has('terminal') && has('patch-8.0.995')
let has_nvim_term = has('nvim-0.2.1') || has('nvim') && !s:is_win
let use_term = has_nvim_term ||
  \ has_vim8_term && !has('win32unix') && (has('gui_running') || s:is_win || s:present(dict, 'down', 'up', 'left', 'right', 'window'))
let use_tmux = (has_key(dict, 'tmux') || (!use_height && !use_term || prefer_tmux) && !has('win32unix') && s:splittable(dict)) && s:tmux_enabled()
if prefer_tmux && use_tmux
  let use_height = 0
  let use_term = 0
endif
if use_term
  let optstr .= ' --no-height'
elseif use_height
  let height = s:calc_size(&lines, dict.down, dict)
  let optstr .= ' --height='.height
endif
let optstr .= s:border_opt(get(dict, 'window', 0))
let prev_default_command = $FZF_DEFAULT_COMMAND
if len(source_command)
  let $FZF_DEFAULT_COMMAND = source_command
endif
let command = (use_tmux ? s:fzf_tmux(dict) : fzf_exec).' '.optstr.' > '.temps.result

if use_term
  return s:execute_term(dict, command, temps)
endif

let lines = use_tmux ? s:execute_tmux(dict, command, temps)
               \ : s:execute(dict, command, use_height, temps)
call s:callback(dict, lines)
return lines

finally

if len(source_command)
  if len(prev_default_command)
    let $FZF_DEFAULT_COMMAND = prev_default_command
  else
    let $FZF_DEFAULT_COMMAND = ''
    silent! execute 'unlet $FZF_DEFAULT_COMMAND'
  endif
endif
let [&shell, &shellslash, &shellcmdflag, &shellxquote] = [shell, shellslash, shellcmdflag, shellxquote]

endtry endfunction

function! s:present(dict, …)

for key in a:000
  if !empty(get(a:dict, key, ''))
    return 1
  endif
endfor
return 0

endfunction

function! s:fzf_tmux(dict)

let size = get(a:dict, 'tmux', '')
if empty(size)
  for o in ['up', 'down', 'left', 'right']
    if s:present(a:dict, o)
      let spec = a:dict[o]
      if (o == 'up' || o == 'down') && spec[0] == '~'
        let size = '-'.o[0].s:calc_size(&lines, spec, a:dict)
      else
        " Legacy boolean option
        let size = '-'.o[0].(spec == 1 ? '' : substitute(spec, '^\~', '', ''))
      endif
      break
    endif
  endfor
endif
return printf('LINES=%d COLUMNS=%d %s %s - --',
  \ &lines, &columns, fzf#shellescape(s:fzf_tmux), size)

endfunction

function! s:splittable(dict)

return s:present(a:dict, 'up', 'down') && &lines > 15 ||
      \ s:present(a:dict, 'left', 'right') && &columns > 40

endfunction

function! s:pushd(dict)

if s:present(a:dict, 'dir')
  let cwd = s:fzf_getcwd()
  let w:fzf_pushd = {
  \   'command': haslocaldir() ? 'lcd' : (exists(':tcd') && haslocaldir(-1) ? 'tcd' : 'cd'),
  \   'origin': cwd,
  \   'bufname': bufname('')
  \ }
  execute 'lcd' s:escape(a:dict.dir)
  let cwd = s:fzf_getcwd()
  let w:fzf_pushd.dir = cwd
  let a:dict.pushd = w:fzf_pushd
  return cwd
endif
return ''

endfunction

augroup fzf_popd

autocmd!
autocmd WinEnter * call s:dopopd()

augroup END

function! s:dopopd()

if !exists('w:fzf_pushd')
  return
endif

" FIXME: We temporarily change the working directory to 'dir' entry
" of options dictionary (set to the current working directory if not given)
" before running fzf.
"
" e.g. call fzf#run({'dir': '/tmp', 'source': 'ls', 'sink': 'e'})
"
" After processing the sink function, we have to restore the current working
" directory. But doing so may not be desirable if the function changed the
" working directory on purpose.
"
" So how can we tell if we should do it or not? A simple heuristic we use
" here is that we change directory only if the current working directory
" matches 'dir' entry. However, it is possible that the sink function did
" change the directory to 'dir'. In that case, the user will have an
" unexpected result.
if s:fzf_getcwd() ==# w:fzf_pushd.dir && (!&autochdir || w:fzf_pushd.bufname ==# bufname(''))
  execute w:fzf_pushd.command s:escape(w:fzf_pushd.origin)
endif
unlet! w:fzf_pushd

endfunction

function! s:xterm_launcher()

let fmt = 'xterm -T "[fzf]" -bg "%s" -fg "%s" -geometry %dx%d+%d+%d -e bash -ic %%s'
if has('gui_macvim')
  let fmt .= '&& osascript -e "tell application \"MacVim\" to activate"'
endif
return printf(fmt,
  \ escape(synIDattr(hlID("Normal"), "bg"), '#'), escape(synIDattr(hlID("Normal"), "fg"), '#'),
  \ &columns, &lines/2, getwinposx(), getwinposy())

endfunction unlet! s:launcher if s:is_win || has('win32unix')

let s:launcher = '%s'

else

let s:launcher = function('s:xterm_launcher')

endif

function! s:exit_handler(code, command, …)

if a:code == 130
  return 0
elseif has('nvim') && a:code == 129
  " When deleting the terminal buffer while fzf is still running,
  " Nvim sends SIGHUP.
  return 0
elseif a:code > 1
  call s:error('Error running ' . a:command)
  if !empty(a:000)
    sleep
  endif
  return 0
endif
return 1

endfunction

function! s:execute(dict, command, use_height, temps) abort

call s:pushd(a:dict)
if has('unix') && !a:use_height
  silent! !clear 2> /dev/null
endif
let escaped = (a:use_height || s:is_win) ? a:command : escape(substitute(a:command, '\n', '\\n', 'g'), '%#!')
if has('gui_running')
  let Launcher = get(a:dict, 'launcher', get(g:, 'Fzf_launcher', get(g:, 'fzf_launcher', s:launcher)))
  let fmt = type(Launcher) == 2 ? call(Launcher, []) : Launcher
  if has('unix')
    let escaped = "'".substitute(escaped, "'", "'\"'\"'", 'g')."'"
  endif
  let command = printf(fmt, escaped)
else
  let command = escaped
endif
if s:is_win
  let batchfile = s:fzf_tempname().'.bat'
  call writefile(s:wrap_cmds(command), batchfile)
  let command = batchfile
  let a:temps.batchfile = batchfile
  if has('nvim')
    let fzf = {}
    let fzf.dict = a:dict
    let fzf.temps = a:temps
    function! fzf.on_exit(job_id, exit_status, event) dict
      call s:pushd(self.dict)
      let lines = s:collect(self.temps)
      call s:callback(self.dict, lines)
    endfunction
    let cmd = 'start /wait cmd /c '.command
    call jobstart(cmd, fzf)
    return []
  endif
elseif has('win32unix') && $TERM !=# 'cygwin'
  let shellscript = s:fzf_tempname()
  call writefile([command], shellscript)
  let command = 'cmd.exe /C '.fzf#shellescape('set "TERM=" & start /WAIT sh -c '.shellscript)
  let a:temps.shellscript = shellscript
endif
if a:use_height
  call system(printf('tput cup %d > /dev/tty; tput cnorm > /dev/tty; %s < /dev/tty 2> /dev/tty', &lines, command))
else
  execute 'silent !'.command
endif
let exit_status = v:shell_error
redraw!
let lines = s:collect(a:temps)
return s:exit_handler(exit_status, command) ? lines : []

endfunction

function! s:execute_tmux(dict, command, temps) abort

let command = a:command
let cwd = s:pushd(a:dict)
if len(cwd)
  " -c '#{pane_current_path}' is only available on tmux 1.9 or above
  let command = join(['cd', fzf#shellescape(cwd), '&&', command])
endif

call system(command)
let exit_status = v:shell_error
redraw!
let lines = s:collect(a:temps)
return s:exit_handler(exit_status, command) ? lines : []

endfunction

function! s:calc_size(max, val, dict)

let val = substitute(a:val, '^\~', '', '')
if val =~ '%$'
  let size = a:max * str2nr(val[:-2]) / 100
else
  let size = min([a:max, str2nr(val)])
endif

let srcsz = -1
if type(get(a:dict, 'source', 0)) == type([])
  let srcsz = len(a:dict.source)
endif

let opts = $FZF_DEFAULT_OPTS.' '.s:evaluate_opts(get(a:dict, 'options', ''))
if opts =~ 'preview'
  return size
endif
let margin = match(opts, '--inline-info\|--info[^-]\{-}inline') > match(opts, '--no-inline-info\|--info[^-]\{-}\(default\|hidden\)') ? 1 : 2
let margin += stridx(opts, '--border') > stridx(opts, '--no-border') ? 2 : 0
if stridx(opts, '--header') > stridx(opts, '--no-header')
  let margin += len(split(opts, "\n"))
endif
return srcsz >= 0 ? min([srcsz + margin, size]) : size

endfunction

function! s:getpos()

return {'tab': tabpagenr(), 'win': winnr(), 'winid': win_getid(), 'cnt': winnr('$'), 'tcnt': tabpagenr('$')}

endfunction

function! s:border_opt(window)

if type(a:window) != type({})
  return ''
endif

" Border style
let style = tolower(get(a:window, 'border', 'rounded'))
if !has_key(a:window, 'border') && !get(a:window, 'rounded', 1)
  let style = 'sharp'
endif
if style == 'none' || style == 'no'
  return ''
endif

" For --border styles, we need fzf 0.24.0 or above
call fzf#exec('0.24.0')
let opt = ' --border=' . style
if has_key(a:window, 'highlight')
  let color = s:get_color('fg', a:window.highlight)
  if len(color)
    let opt .= ' --color=border:' . color
  endif
endif
return opt

endfunction

function! s:split(dict)

let directions = {
\ 'up':    ['topleft', 'resize', &lines],
\ 'down':  ['botright', 'resize', &lines],
\ 'left':  ['vertical topleft', 'vertical resize', &columns],
\ 'right': ['vertical botright', 'vertical resize', &columns] }
let ppos = s:getpos()
let is_popup = 0
try
  if s:present(a:dict, 'window')
    if type(a:dict.window) == type({})
      if !s:popup_support()
        throw 'Nvim 0.4+ or Vim 8.2.191+ with popupwin feature is required for pop-up window'
      end
      call s:popup(a:dict.window)
      let is_popup = 1
    else
      execute 'keepalt' a:dict.window
    endif
  elseif !s:splittable(a:dict)
    execute (tabpagenr()-1).'tabnew'
  else
    for [dir, triple] in items(directions)
      let val = get(a:dict, dir, '')
      if !empty(val)
        let [cmd, resz, max] = triple
        if (dir == 'up' || dir == 'down') && val[0] == '~'
          let sz = s:calc_size(max, val, a:dict)
        else
          let sz = s:calc_size(max, val, {})
        endif
        execute cmd sz.'new'
        execute resz sz
        return [ppos, {}, is_popup]
      endif
    endfor
  endif
  return [ppos, is_popup ? {} : { '&l:wfw': &l:wfw, '&l:wfh': &l:wfh }, is_popup]
finally
  if !is_popup
    setlocal winfixwidth winfixheight
  endif
endtry

endfunction

nnoremap <silent> <Plug>(fzf-insert) i nnoremap <silent> <Plug>(fzf-normal) <Nop> if exists(':tnoremap')

tnoremap <silent> <Plug>(fzf-insert) <C-\><C-n>i
tnoremap <silent> <Plug>(fzf-normal) <C-\><C-n>

endif

function! s:execute_term(dict, command, temps) abort

let winrest = winrestcmd()
let pbuf = bufnr('')
let [ppos, winopts, is_popup] = s:split(a:dict)
call s:use_sh()
let b:fzf = a:dict
let fzf = { 'buf': bufnr(''), 'pbuf': pbuf, 'ppos': ppos, 'dict': a:dict, 'temps': a:temps,
          \ 'winopts': winopts, 'winrest': winrest, 'lines': &lines,
          \ 'columns': &columns, 'command': a:command }
function! fzf.switch_back(inplace)
  if a:inplace && bufnr('') == self.buf
    if bufexists(self.pbuf)
      execute 'keepalt keepjumps b' self.pbuf
    endif
    " No other listed buffer
    if bufnr('') == self.buf
      enew
    endif
  endif
endfunction
function! fzf.on_exit(id, code, ...)
  if s:getpos() == self.ppos " {'window': 'enew'}
    for [opt, val] in items(self.winopts)
      execute 'let' opt '=' val
    endfor
    call self.switch_back(1)
  else
    if bufnr('') == self.buf
      " We use close instead of bd! since Vim does not close the split when
      " there's no other listed buffer (nvim +'set nobuflisted')
      close
    endif
    silent! execute 'tabnext' self.ppos.tab
    silent! execute self.ppos.win.'wincmd w'
  endif

  if bufexists(self.buf)
    execute 'bd!' self.buf
  endif

  if &lines == self.lines && &columns == self.columns && s:getpos() == self.ppos
    execute self.winrest
  endif

  let lines = s:collect(self.temps)
  if !s:exit_handler(a:code, self.command, 1)
    return
  endif

  call s:pushd(self.dict)
  call s:callback(self.dict, lines)
  call self.switch_back(s:getpos() == self.ppos)

  if &buftype == 'terminal'
    call feedkeys(&filetype == 'fzf' ? "\<Plug>(fzf-insert)" : "\<Plug>(fzf-normal)")
  endif
endfunction

try
  call s:pushd(a:dict)
  if s:is_win
    let fzf.temps.batchfile = s:fzf_tempname().'.bat'
    call writefile(s:wrap_cmds(a:command), fzf.temps.batchfile)
    let command = fzf.temps.batchfile
  else
    let command = a:command
  endif
  let command .= s:term_marker
  if has('nvim')
    call termopen(command, fzf)
  else
    let term_opts = {'exit_cb': function(fzf.on_exit)}
    if v:version >= 802
      let term_opts.term_kill = 'term'
    endif
    if is_popup
      let term_opts.hidden = 1
    else
      let term_opts.curwin = 1
    endif
    let fzf.buf = term_start([&shell, &shellcmdflag, command], term_opts)
    if is_popup && exists('#TerminalWinOpen')
      doautocmd <nomodeline> TerminalWinOpen
    endif
    if !has('patch-8.0.1261') && !s:is_win
      call term_wait(fzf.buf, 20)
    endif
  endif
  tnoremap <buffer> <c-z> <nop>
  if exists('&termwinkey') && (empty(&termwinkey) || &termwinkey =~? '<c-w>')
    tnoremap <buffer> <c-w> <c-w>.
  endif
finally
  call s:dopopd()
endtry
setlocal nospell bufhidden=wipe nobuflisted nonumber
setf fzf
startinsert
return []

endfunction

function! s:collect(temps) abort

try
  return filereadable(a:temps.result) ? readfile(a:temps.result) : []
finally
  for tf in values(a:temps)
    silent! call delete(tf)
  endfor
endtry

endfunction

function! s:callback(dict, lines) abort

let popd = has_key(a:dict, 'pushd')
if popd
  let w:fzf_pushd = a:dict.pushd
endif

try
  if has_key(a:dict, 'sink')
    for line in a:lines
      if type(a:dict.sink) == 2
        call a:dict.sink(line)
      else
        execute a:dict.sink s:escape(line)
      endif
    endfor
  endif
  if has_key(a:dict, 'sink*')
    call a:dict['sink*'](a:lines)
  elseif has_key(a:dict, 'sinklist')
    call a:dict['sinklist'](a:lines)
  endif
catch
  if stridx(v:exception, ':E325:') < 0
    echoerr v:exception
  endif
endtry

" We may have opened a new window or tab
if popd
  let w:fzf_pushd = a:dict.pushd
  call s:dopopd()
endif

endfunction

if has('nvim')

function s:create_popup(hl, opts) abort
  let buf = nvim_create_buf(v:false, v:true)
  let opts = extend({'relative': 'editor', 'style': 'minimal'}, a:opts)
  let win = nvim_open_win(buf, v:true, opts)
  call setwinvar(win, '&winhighlight', 'NormalFloat:'..a:hl)
  call setwinvar(win, '&colorcolumn', '')
  return buf
endfunction

else

function! s:create_popup(hl, opts) abort
  let s:popup_create = {buf -> popup_create(buf, #{
    \ line: a:opts.row,
    \ col: a:opts.col,
    \ minwidth: a:opts.width,
    \ maxwidth: a:opts.width,
    \ minheight: a:opts.height,
    \ maxheight: a:opts.height,
    \ zindex: 1000,
  \ })}
  autocmd TerminalOpen * ++once call s:popup_create(str2nr(expand('<abuf>')))
endfunction

endif

function! s:popup(opts) abort

let xoffset = get(a:opts, 'xoffset', 0.5)
let yoffset = get(a:opts, 'yoffset', 0.5)
let relative = get(a:opts, 'relative', 0)

" Use current window size for positioning relatively positioned popups
let columns = relative ? winwidth(0) : &columns
let lines = relative ? winheight(0) : (&lines - has('nvim'))

" Size and position
let width = min([max([8, a:opts.width > 1 ? a:opts.width : float2nr(columns * a:opts.width)]), columns])
let height = min([max([4, a:opts.height > 1 ? a:opts.height : float2nr(lines * a:opts.height)]), lines])
let row = float2nr(yoffset * (lines - height)) + (relative ? win_screenpos(0)[0] - 1 : 0)
let col = float2nr(xoffset * (columns - width)) + (relative ? win_screenpos(0)[1] - 1 : 0)

" Managing the differences
let row = min([max([0, row]), &lines - has('nvim') - height])
let col = min([max([0, col]), &columns - width])
let row += !has('nvim')
let col += !has('nvim')

call s:create_popup('Normal', {
  \ 'row': row, 'col': col, 'width': width, 'height': height
\ })

endfunction

let s:default_action = {

\ 'ctrl-t': 'tab split',
\ 'ctrl-x': 'split',
\ 'ctrl-v': 'vsplit' }

function! s:shortpath()

let short = fnamemodify(getcwd(), ':~:.')
if !has('win32unix')
  let short = pathshorten(short)
endif
let slash = (s:is_win && !&shellslash) ? '\' : '/'
return empty(short) ? '~'.slash : short . (short =~ escape(slash, '\').'$' ? '' : slash)

endfunction

function! s:cmd(bang, …) abort

let args = copy(a:000)
let opts = { 'options': ['--multi'] }
if len(args) && isdirectory(expand(args[-1]))
  let opts.dir = substitute(substitute(remove(args, -1), '\\\(["'']\)', '\1', 'g'), '[/\\]*$', '/', '')
  if s:is_win && !&shellslash
    let opts.dir = substitute(opts.dir, '/', '\\', 'g')
  endif
  let prompt = opts.dir
else
  let prompt = s:shortpath()
endif
let prompt = strwidth(prompt) < &columns - 20 ? prompt : '> '
call extend(opts.options, ['--prompt', prompt])
call extend(opts.options, args)
call fzf#run(fzf#wrap('FZF', opts, a:bang))

endfunction

command! -nargs=* -complete=dir -bang FZF call s:cmd(<bang>0, <f-args>)

let &cpo = s:cpo_save unlet s:cpo_save