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