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651
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1 " Vim script to download a missing spell file
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2 " Maintainer: Bram Moolenaar <Bram@vim.org>
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3256
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3 " Last Change: 2012 Jan 08
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651
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4
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5 if !exists('g:spellfile_URL')
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1652
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6 " Prefer using http:// when netrw should be able to use it, since
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7 " more firewalls let this through.
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8 if executable("curl") || executable("wget") || executable("fetch")
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9 let g:spellfile_URL = 'http://ftp.vim.org/pub/vim/runtime/spell'
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10 else
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11 let g:spellfile_URL = 'ftp://ftp.vim.org/pub/vim/runtime/spell'
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12 endif
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651
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13 endif
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14 let s:spellfile_URL = '' " Start with nothing so that s:donedict is reset.
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15
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16 " This function is used for the spellfile plugin.
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17 function! spellfile#LoadFile(lang)
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18 " If the netrw plugin isn't loaded we silently skip everything.
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19 if !exists(":Nread")
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20 if &verbose
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21 echomsg 'spellfile#LoadFile(): Nread command is not available.'
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22 endif
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23 return
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24 endif
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25
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26 " If the URL changes we try all files again.
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27 if s:spellfile_URL != g:spellfile_URL
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28 let s:donedict = {}
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29 let s:spellfile_URL = g:spellfile_URL
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30 endif
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31
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32 " I will say this only once!
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33 if has_key(s:donedict, a:lang . &enc)
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34 if &verbose
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35 echomsg 'spellfile#LoadFile(): Tried this language/encoding before.'
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36 endif
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37 return
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38 endif
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39 let s:donedict[a:lang . &enc] = 1
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40
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41 " Find spell directories we can write in.
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2034
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42 let [dirlist, dirchoices] = spellfile#GetDirChoices()
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651
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43 if len(dirlist) == 0
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2034
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44 let dir_to_create = spellfile#WritableSpellDir()
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45 if &verbose || dir_to_create != ''
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651
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46 echomsg 'spellfile#LoadFile(): There is no writable spell directory.'
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47 endif
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2034
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48 if dir_to_create != ''
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49 if confirm("Shall I create " . dir_to_create, "&Yes\n&No", 2) == 1
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50 " After creating the directory it should show up in the list.
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51 call mkdir(dir_to_create, "p")
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52 let [dirlist, dirchoices] = spellfile#GetDirChoices()
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53 endif
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54 endif
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55 if len(dirlist) == 0
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56 return
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57 endif
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651
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58 endif
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59
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60 let msg = 'Cannot find spell file for "' . a:lang . '" in ' . &enc
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61 let msg .= "\nDo you want me to try downloading it?"
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62 if confirm(msg, "&Yes\n&No", 2) == 1
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63 let enc = &encoding
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64 if enc == 'iso-8859-15'
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65 let enc = 'latin1'
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66 endif
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67 let fname = a:lang . '.' . enc . '.spl'
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68
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69 " Split the window, read the file into a new buffer.
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1185
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70 " Remember the buffer number, we check it below.
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651
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71 new
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1185
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72 let newbufnr = winbufnr(0)
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3256
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73 setlocal bin fenc=
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651
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74 echo 'Downloading ' . fname . '...'
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884
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75 call spellfile#Nread(fname)
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651
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76 if getline(2) !~ 'VIMspell'
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77 " Didn't work, perhaps there is an ASCII one.
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1185
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78 " Careful: Nread() may have opened a new window for the error message,
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79 " we need to go back to our own buffer and window.
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80 if newbufnr != winbufnr(0)
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81 let winnr = bufwinnr(newbufnr)
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82 if winnr == -1
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83 " Our buffer has vanished!? Open a new window.
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84 echomsg "download buffer disappeared, opening a new one"
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85 new
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3256
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86 setlocal bin fenc=
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1185
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87 else
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88 exe winnr . "wincmd w"
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89 endif
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90 endif
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91 if newbufnr == winbufnr(0)
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92 " We are back the old buffer, remove any (half-finished) download.
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93 g/^/d
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94 else
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95 let newbufnr = winbufnr(0)
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96 endif
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97
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651
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98 let fname = a:lang . '.ascii.spl'
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99 echo 'Could not find it, trying ' . fname . '...'
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884
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100 call spellfile#Nread(fname)
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651
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101 if getline(2) !~ 'VIMspell'
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102 echo 'Sorry, downloading failed'
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1185
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103 exe newbufnr . "bwipe!"
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651
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104 return
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105 endif
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106 endif
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107
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108 " Delete the empty first line and mark the file unmodified.
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109 1d
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110 set nomod
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111
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112 let msg = "In which directory do you want to write the file:"
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113 for i in range(len(dirlist))
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114 let msg .= "\n" . (i + 1) . '. ' . dirlist[i]
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115 endfor
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116 let dirchoice = confirm(msg, dirchoices) - 2
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117 if dirchoice >= 0
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1624
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118 if exists('*fnameescape')
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119 let dirname = fnameescape(dirlist[dirchoice])
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120 else
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121 let dirname = escape(dirlist[dirchoice], ' ')
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122 endif
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3256
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123 setlocal fenc=
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1624
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124 exe "write " . dirname . '/' . fname
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651
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125
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126 " Also download the .sug file, if the user wants to.
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127 let msg = "Do you want me to try getting the .sug file?\n"
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128 let msg .= "This will improve making suggestions for spelling mistakes,\n"
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129 let msg .= "but it uses quite a bit of memory."
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130 if confirm(msg, "&No\n&Yes") == 2
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131 g/^/d
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132 let fname = substitute(fname, '\.spl$', '.sug', '')
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133 echo 'Downloading ' . fname . '...'
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884
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134 call spellfile#Nread(fname)
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1185
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135 if getline(2) =~ 'VIMsug'
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651
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136 1d
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1624
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137 exe "write " . dirname . '/' . fname
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1185
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138 set nomod
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139 else
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140 echo 'Sorry, downloading failed'
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141 " Go back to our own buffer/window, Nread() may have taken us to
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142 " another window.
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143 if newbufnr != winbufnr(0)
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144 let winnr = bufwinnr(newbufnr)
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145 if winnr != -1
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146 exe winnr . "wincmd w"
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147 endif
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148 endif
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149 if newbufnr == winbufnr(0)
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150 set nomod
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151 endif
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651
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152 endif
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153 endif
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154 endif
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155
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1185
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156 " Wipe out the buffer we used.
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157 exe newbufnr . "bwipe"
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651
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158 endif
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159 endfunc
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884
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160
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950
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161 " Read "fname" from the server.
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884
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162 function! spellfile#Nread(fname)
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1226
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163 " We do our own error handling, don't want a window for it.
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164 if exists("g:netrw_use_errorwindow")
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165 let save_ew = g:netrw_use_errorwindow
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166 endif
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167 let g:netrw_use_errorwindow=0
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168
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950
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169 if g:spellfile_URL =~ '^ftp://'
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170 " for an ftp server use a default login and password to avoid a prompt
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171 let machine = substitute(g:spellfile_URL, 'ftp://\([^/]*\).*', '\1', '')
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172 let dir = substitute(g:spellfile_URL, 'ftp://[^/]*/\(.*\)', '\1', '')
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173 exe 'Nread "' . machine . ' anonymous vim7user ' . dir . '/' . a:fname . '"'
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174 else
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175 exe 'Nread ' g:spellfile_URL . '/' . a:fname
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176 endif
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1226
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177
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178 if exists("save_ew")
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179 let g:netrw_use_errorwindow = save_ew
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180 else
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181 unlet g:netrw_use_errorwindow
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182 endif
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884
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183 endfunc
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2034
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184
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185 " Get a list of writable spell directories and choices for confirm().
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186 function! spellfile#GetDirChoices()
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187 let dirlist = []
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188 let dirchoices = '&Cancel'
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189 for dir in split(globpath(&rtp, 'spell'), "\n")
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190 if filewritable(dir) == 2
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191 call add(dirlist, dir)
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192 let dirchoices .= "\n&" . len(dirlist)
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193 endif
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194 endfor
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195 return [dirlist, dirchoices]
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196 endfunc
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197
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198 function! spellfile#WritableSpellDir()
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199 if has("unix")
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200 " For Unix always use the $HOME/.vim directory
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201 return $HOME . "/.vim/spell"
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202 endif
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203 for dir in split(&rtp, ',')
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204 if filewritable(dir) == 2
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205 return dir . "/spell"
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206 endif
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207 endfor
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208 return ''
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209 endfunction
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