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" Vim script to download a missing spell file
" Maintainer: Bram Moolenaar <Bram@vim.org>
" Last Change: 2012 Jan 08
if !exists('g:spellfile_URL')
" Prefer using http:// when netrw should be able to use it, since
" more firewalls let this through.
if executable("curl") || executable("wget") || executable("fetch")
let g:spellfile_URL = 'http://ftp.vim.org/pub/vim/runtime/spell'
else
let g:spellfile_URL = 'ftp://ftp.vim.org/pub/vim/runtime/spell'
endif
endif
let s:spellfile_URL = '' " Start with nothing so that s:donedict is reset.
" This function is used for the spellfile plugin.
function! spellfile#LoadFile(lang)
" If the netrw plugin isn't loaded we silently skip everything.
if !exists(":Nread")
if &verbose
echomsg 'spellfile#LoadFile(): Nread command is not available.'
endif
return
endif
" If the URL changes we try all files again.
if s:spellfile_URL != g:spellfile_URL
let s:donedict = {}
let s:spellfile_URL = g:spellfile_URL
endif
" I will say this only once!
if has_key(s:donedict, a:lang . &enc)
if &verbose
echomsg 'spellfile#LoadFile(): Tried this language/encoding before.'
endif
return
endif
let s:donedict[a:lang . &enc] = 1
" Find spell directories we can write in.
let [dirlist, dirchoices] = spellfile#GetDirChoices()
if len(dirlist) == 0
let dir_to_create = spellfile#WritableSpellDir()
if &verbose || dir_to_create != ''
echomsg 'spellfile#LoadFile(): There is no writable spell directory.'
endif
if dir_to_create != ''
if confirm("Shall I create " . dir_to_create, "&Yes\n&No", 2) == 1
" After creating the directory it should show up in the list.
call mkdir(dir_to_create, "p")
let [dirlist, dirchoices] = spellfile#GetDirChoices()
endif
endif
if len(dirlist) == 0
return
endif
endif
let msg = 'Cannot find spell file for "' . a:lang . '" in ' . &enc
let msg .= "\nDo you want me to try downloading it?"
if confirm(msg, "&Yes\n&No", 2) == 1
let enc = &encoding
if enc == 'iso-8859-15'
let enc = 'latin1'
endif
let fname = a:lang . '.' . enc . '.spl'
" Split the window, read the file into a new buffer.
" Remember the buffer number, we check it below.
new
let newbufnr = winbufnr(0)
setlocal bin fenc=
echo 'Downloading ' . fname . '...'
call spellfile#Nread(fname)
if getline(2) !~ 'VIMspell'
" Didn't work, perhaps there is an ASCII one.
" Careful: Nread() may have opened a new window for the error message,
" we need to go back to our own buffer and window.
if newbufnr != winbufnr(0)
let winnr = bufwinnr(newbufnr)
if winnr == -1
" Our buffer has vanished!? Open a new window.
echomsg "download buffer disappeared, opening a new one"
new
setlocal bin fenc=
else
exe winnr . "wincmd w"
endif
endif
if newbufnr == winbufnr(0)
" We are back the old buffer, remove any (half-finished) download.
g/^/d
else
let newbufnr = winbufnr(0)
endif
let fname = a:lang . '.ascii.spl'
echo 'Could not find it, trying ' . fname . '...'
call spellfile#Nread(fname)
if getline(2) !~ 'VIMspell'
echo 'Sorry, downloading failed'
exe newbufnr . "bwipe!"
return
endif
endif
" Delete the empty first line and mark the file unmodified.
1d
set nomod
let msg = "In which directory do you want to write the file:"
for i in range(len(dirlist))
let msg .= "\n" . (i + 1) . '. ' . dirlist[i]
endfor
let dirchoice = confirm(msg, dirchoices) - 2
if dirchoice >= 0
if exists('*fnameescape')
let dirname = fnameescape(dirlist[dirchoice])
else
let dirname = escape(dirlist[dirchoice], ' ')
endif
setlocal fenc=
exe "write " . dirname . '/' . fname
" Also download the .sug file, if the user wants to.
let msg = "Do you want me to try getting the .sug file?\n"
let msg .= "This will improve making suggestions for spelling mistakes,\n"
let msg .= "but it uses quite a bit of memory."
if confirm(msg, "&No\n&Yes") == 2
g/^/d
let fname = substitute(fname, '\.spl$', '.sug', '')
echo 'Downloading ' . fname . '...'
call spellfile#Nread(fname)
if getline(2) =~ 'VIMsug'
1d
exe "write " . dirname . '/' . fname
set nomod
else
echo 'Sorry, downloading failed'
" Go back to our own buffer/window, Nread() may have taken us to
" another window.
if newbufnr != winbufnr(0)
let winnr = bufwinnr(newbufnr)
if winnr != -1
exe winnr . "wincmd w"
endif
endif
if newbufnr == winbufnr(0)
set nomod
endif
endif
endif
endif
" Wipe out the buffer we used.
exe newbufnr . "bwipe"
endif
endfunc
" Read "fname" from the server.
function! spellfile#Nread(fname)
" We do our own error handling, don't want a window for it.
if exists("g:netrw_use_errorwindow")
let save_ew = g:netrw_use_errorwindow
endif
let g:netrw_use_errorwindow=0
if g:spellfile_URL =~ '^ftp://'
" for an ftp server use a default login and password to avoid a prompt
let machine = substitute(g:spellfile_URL, 'ftp://\([^/]*\).*', '\1', '')
let dir = substitute(g:spellfile_URL, 'ftp://[^/]*/\(.*\)', '\1', '')
exe 'Nread "' . machine . ' anonymous vim7user ' . dir . '/' . a:fname . '"'
else
exe 'Nread ' g:spellfile_URL . '/' . a:fname
endif
if exists("save_ew")
let g:netrw_use_errorwindow = save_ew
else
unlet g:netrw_use_errorwindow
endif
endfunc
" Get a list of writable spell directories and choices for confirm().
function! spellfile#GetDirChoices()
let dirlist = []
let dirchoices = '&Cancel'
for dir in split(globpath(&rtp, 'spell'), "\n")
if filewritable(dir) == 2
call add(dirlist, dir)
let dirchoices .= "\n&" . len(dirlist)
endif
endfor
return [dirlist, dirchoices]
endfunc
function! spellfile#WritableSpellDir()
if has("unix")
" For Unix always use the $HOME/.vim directory
return $HOME . "/.vim/spell"
endif
for dir in split(&rtp, ',')
if filewritable(dir) == 2
return dir . "/spell"
endif
endfor
return ''
endfunction