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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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21250
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3 " Last Change: 2020 Jul 10
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651
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4
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5 if !exists('g:spellfile_URL')
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21250
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6 " Always use https:// because it's secure. The certificate is for nluug.nl,
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7 " thus we can't use the alias ftp.vim.org here.
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8 let g:spellfile_URL = 'https://ftp.nluug.nl/pub/vim/runtime/spell'
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651
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9 endif
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10 let s:spellfile_URL = '' " Start with nothing so that s:donedict is reset.
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11
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12 " This function is used for the spellfile plugin.
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13 function! spellfile#LoadFile(lang)
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14 " If the netrw plugin isn't loaded we silently skip everything.
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15 if !exists(":Nread")
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16 if &verbose
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17 echomsg 'spellfile#LoadFile(): Nread command is not available.'
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18 endif
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19 return
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20 endif
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14372
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21 let lang = tolower(a:lang)
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651
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22
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23 " If the URL changes we try all files again.
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24 if s:spellfile_URL != g:spellfile_URL
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25 let s:donedict = {}
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26 let s:spellfile_URL = g:spellfile_URL
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27 endif
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28
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29 " I will say this only once!
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14372
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30 if has_key(s:donedict, lang . &enc)
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651
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31 if &verbose
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32 echomsg 'spellfile#LoadFile(): Tried this language/encoding before.'
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33 endif
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34 return
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35 endif
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14372
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36 let s:donedict[lang . &enc] = 1
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651
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37
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38 " Find spell directories we can write in.
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2034
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39 let [dirlist, dirchoices] = spellfile#GetDirChoices()
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651
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40 if len(dirlist) == 0
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2034
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41 let dir_to_create = spellfile#WritableSpellDir()
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42 if &verbose || dir_to_create != ''
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651
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43 echomsg 'spellfile#LoadFile(): There is no writable spell directory.'
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44 endif
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2034
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45 if dir_to_create != ''
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46 if confirm("Shall I create " . dir_to_create, "&Yes\n&No", 2) == 1
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47 " After creating the directory it should show up in the list.
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48 call mkdir(dir_to_create, "p")
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49 let [dirlist, dirchoices] = spellfile#GetDirChoices()
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50 endif
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51 endif
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52 if len(dirlist) == 0
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53 return
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54 endif
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651
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55 endif
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56
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14372
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57 let msg = 'Cannot find spell file for "' . lang . '" in ' . &enc
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651
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58 let msg .= "\nDo you want me to try downloading it?"
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59 if confirm(msg, "&Yes\n&No", 2) == 1
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60 let enc = &encoding
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61 if enc == 'iso-8859-15'
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62 let enc = 'latin1'
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63 endif
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14372
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64 let fname = lang . '.' . enc . '.spl'
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651
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65
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66 " Split the window, read the file into a new buffer.
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1185
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67 " Remember the buffer number, we check it below.
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651
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68 new
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1185
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69 let newbufnr = winbufnr(0)
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3256
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70 setlocal bin fenc=
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651
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71 echo 'Downloading ' . fname . '...'
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884
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72 call spellfile#Nread(fname)
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651
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73 if getline(2) !~ 'VIMspell'
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74 " Didn't work, perhaps there is an ASCII one.
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1185
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75 " Careful: Nread() may have opened a new window for the error message,
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76 " we need to go back to our own buffer and window.
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77 if newbufnr != winbufnr(0)
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78 let winnr = bufwinnr(newbufnr)
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79 if winnr == -1
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80 " Our buffer has vanished!? Open a new window.
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81 echomsg "download buffer disappeared, opening a new one"
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82 new
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3256
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83 setlocal bin fenc=
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1185
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84 else
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85 exe winnr . "wincmd w"
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86 endif
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87 endif
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88 if newbufnr == winbufnr(0)
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89 " We are back the old buffer, remove any (half-finished) download.
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90 g/^/d
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91 else
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92 let newbufnr = winbufnr(0)
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93 endif
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94
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14372
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95 let fname = lang . '.ascii.spl'
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651
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96 echo 'Could not find it, trying ' . fname . '...'
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884
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97 call spellfile#Nread(fname)
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651
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98 if getline(2) !~ 'VIMspell'
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99 echo 'Sorry, downloading failed'
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1185
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100 exe newbufnr . "bwipe!"
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651
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101 return
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102 endif
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103 endif
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104
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105 " Delete the empty first line and mark the file unmodified.
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106 1d
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107 set nomod
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108
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109 let msg = "In which directory do you want to write the file:"
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110 for i in range(len(dirlist))
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111 let msg .= "\n" . (i + 1) . '. ' . dirlist[i]
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112 endfor
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113 let dirchoice = confirm(msg, dirchoices) - 2
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114 if dirchoice >= 0
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1624
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115 if exists('*fnameescape')
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116 let dirname = fnameescape(dirlist[dirchoice])
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117 else
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118 let dirname = escape(dirlist[dirchoice], ' ')
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119 endif
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3256
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120 setlocal fenc=
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1624
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121 exe "write " . dirname . '/' . fname
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651
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122
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123 " Also download the .sug file, if the user wants to.
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124 let msg = "Do you want me to try getting the .sug file?\n"
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125 let msg .= "This will improve making suggestions for spelling mistakes,\n"
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126 let msg .= "but it uses quite a bit of memory."
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127 if confirm(msg, "&No\n&Yes") == 2
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128 g/^/d
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129 let fname = substitute(fname, '\.spl$', '.sug', '')
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130 echo 'Downloading ' . fname . '...'
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884
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131 call spellfile#Nread(fname)
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1185
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132 if getline(2) =~ 'VIMsug'
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651
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133 1d
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1624
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134 exe "write " . dirname . '/' . fname
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1185
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135 set nomod
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136 else
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137 echo 'Sorry, downloading failed'
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138 " Go back to our own buffer/window, Nread() may have taken us to
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139 " another window.
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140 if newbufnr != winbufnr(0)
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141 let winnr = bufwinnr(newbufnr)
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142 if winnr != -1
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143 exe winnr . "wincmd w"
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144 endif
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145 endif
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146 if newbufnr == winbufnr(0)
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147 set nomod
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148 endif
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651
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149 endif
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150 endif
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151 endif
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152
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1185
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153 " Wipe out the buffer we used.
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154 exe newbufnr . "bwipe"
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651
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155 endif
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156 endfunc
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884
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157
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950
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158 " Read "fname" from the server.
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884
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159 function! spellfile#Nread(fname)
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1226
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160 " We do our own error handling, don't want a window for it.
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161 if exists("g:netrw_use_errorwindow")
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162 let save_ew = g:netrw_use_errorwindow
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163 endif
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164 let g:netrw_use_errorwindow=0
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165
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950
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166 if g:spellfile_URL =~ '^ftp://'
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167 " for an ftp server use a default login and password to avoid a prompt
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168 let machine = substitute(g:spellfile_URL, 'ftp://\([^/]*\).*', '\1', '')
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169 let dir = substitute(g:spellfile_URL, 'ftp://[^/]*/\(.*\)', '\1', '')
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170 exe 'Nread "' . machine . ' anonymous vim7user ' . dir . '/' . a:fname . '"'
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171 else
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172 exe 'Nread ' g:spellfile_URL . '/' . a:fname
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173 endif
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1226
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174
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175 if exists("save_ew")
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176 let g:netrw_use_errorwindow = save_ew
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177 else
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178 unlet g:netrw_use_errorwindow
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179 endif
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884
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180 endfunc
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2034
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181
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182 " Get a list of writable spell directories and choices for confirm().
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183 function! spellfile#GetDirChoices()
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184 let dirlist = []
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185 let dirchoices = '&Cancel'
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186 for dir in split(globpath(&rtp, 'spell'), "\n")
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187 if filewritable(dir) == 2
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188 call add(dirlist, dir)
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189 let dirchoices .= "\n&" . len(dirlist)
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190 endif
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191 endfor
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192 return [dirlist, dirchoices]
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193 endfunc
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194
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195 function! spellfile#WritableSpellDir()
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196 if has("unix")
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197 " For Unix always use the $HOME/.vim directory
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198 return $HOME . "/.vim/spell"
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199 endif
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200 for dir in split(&rtp, ',')
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201 if filewritable(dir) == 2
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202 return dir . "/spell"
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203 endif
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204 endfor
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205 return ''
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206 endfunction
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