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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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1185
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3 " Last Change: 2007 May 06
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651
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4
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5 if !exists('g:spellfile_URL')
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884
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6 let g:spellfile_URL = 'ftp://ftp.vim.org/pub/vim/runtime/spell'
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651
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7 endif
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8 let s:spellfile_URL = '' " Start with nothing so that s:donedict is reset.
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9
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10 " This function is used for the spellfile plugin.
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11 function! spellfile#LoadFile(lang)
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12 " If the netrw plugin isn't loaded we silently skip everything.
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13 if !exists(":Nread")
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14 if &verbose
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15 echomsg 'spellfile#LoadFile(): Nread command is not available.'
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16 endif
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17 return
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18 endif
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19
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20 " If the URL changes we try all files again.
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21 if s:spellfile_URL != g:spellfile_URL
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22 let s:donedict = {}
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23 let s:spellfile_URL = g:spellfile_URL
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24 endif
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25
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26 " I will say this only once!
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27 if has_key(s:donedict, a:lang . &enc)
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28 if &verbose
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29 echomsg 'spellfile#LoadFile(): Tried this language/encoding before.'
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30 endif
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31 return
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32 endif
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33 let s:donedict[a:lang . &enc] = 1
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34
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35 " Find spell directories we can write in.
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36 let dirlist = []
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37 let dirchoices = '&Cancel'
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38 for dir in split(globpath(&rtp, 'spell'), "\n")
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39 if filewritable(dir) == 2
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40 call add(dirlist, dir)
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41 let dirchoices .= "\n&" . len(dirlist)
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42 endif
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43 endfor
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44 if len(dirlist) == 0
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45 if &verbose
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46 echomsg 'spellfile#LoadFile(): There is no writable spell directory.'
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47 endif
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48 return
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49 endif
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50
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51 let msg = 'Cannot find spell file for "' . a:lang . '" in ' . &enc
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52 let msg .= "\nDo you want me to try downloading it?"
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53 if confirm(msg, "&Yes\n&No", 2) == 1
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54 let enc = &encoding
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55 if enc == 'iso-8859-15'
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56 let enc = 'latin1'
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57 endif
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58 let fname = a:lang . '.' . enc . '.spl'
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59
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60 " Split the window, read the file into a new buffer.
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1185
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61 " Remember the buffer number, we check it below.
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651
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62 new
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1185
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63 let newbufnr = winbufnr(0)
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651
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64 setlocal bin
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65 echo 'Downloading ' . fname . '...'
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884
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66 call spellfile#Nread(fname)
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651
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67 if getline(2) !~ 'VIMspell'
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68 " Didn't work, perhaps there is an ASCII one.
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1185
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69 " Careful: Nread() may have opened a new window for the error message,
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70 " we need to go back to our own buffer and window.
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71 if newbufnr != winbufnr(0)
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72 let winnr = bufwinnr(newbufnr)
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73 if winnr == -1
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74 " Our buffer has vanished!? Open a new window.
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75 echomsg "download buffer disappeared, opening a new one"
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76 new
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77 setlocal bin
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78 else
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79 exe winnr . "wincmd w"
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80 endif
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81 endif
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82 if newbufnr == winbufnr(0)
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83 " We are back the old buffer, remove any (half-finished) download.
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84 g/^/d
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85 else
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86 let newbufnr = winbufnr(0)
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87 endif
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88
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651
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89 let fname = a:lang . '.ascii.spl'
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90 echo 'Could not find it, trying ' . fname . '...'
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884
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91 call spellfile#Nread(fname)
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651
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92 if getline(2) !~ 'VIMspell'
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93 echo 'Sorry, downloading failed'
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1185
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94 exe newbufnr . "bwipe!"
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651
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95 return
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96 endif
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97 endif
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98
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99 " Delete the empty first line and mark the file unmodified.
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100 1d
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101 set nomod
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102
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103 let msg = "In which directory do you want to write the file:"
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104 for i in range(len(dirlist))
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105 let msg .= "\n" . (i + 1) . '. ' . dirlist[i]
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106 endfor
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107 let dirchoice = confirm(msg, dirchoices) - 2
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108 if dirchoice >= 0
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109 exe "write " . escape(dirlist[dirchoice], ' ') . '/' . fname
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110
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111 " Also download the .sug file, if the user wants to.
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112 let msg = "Do you want me to try getting the .sug file?\n"
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113 let msg .= "This will improve making suggestions for spelling mistakes,\n"
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114 let msg .= "but it uses quite a bit of memory."
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115 if confirm(msg, "&No\n&Yes") == 2
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116 g/^/d
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117 let fname = substitute(fname, '\.spl$', '.sug', '')
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118 echo 'Downloading ' . fname . '...'
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884
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119 call spellfile#Nread(fname)
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1185
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120 if getline(2) =~ 'VIMsug'
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651
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121 1d
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122 exe "write " . escape(dirlist[dirchoice], ' ') . '/' . fname
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1185
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123 set nomod
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124 else
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125 echo 'Sorry, downloading failed'
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126 " Go back to our own buffer/window, Nread() may have taken us to
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127 " another window.
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128 if newbufnr != winbufnr(0)
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129 let winnr = bufwinnr(newbufnr)
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130 if winnr != -1
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131 exe winnr . "wincmd w"
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132 endif
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133 endif
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134 if newbufnr == winbufnr(0)
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135 set nomod
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136 endif
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651
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137 endif
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138 endif
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139 endif
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140
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1185
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141 " Wipe out the buffer we used.
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142 exe newbufnr . "bwipe"
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651
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143 endif
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144 endfunc
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884
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145
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950
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146 " Read "fname" from the server.
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884
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147 function! spellfile#Nread(fname)
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950
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148 if g:spellfile_URL =~ '^ftp://'
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149 " for an ftp server use a default login and password to avoid a prompt
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150 let machine = substitute(g:spellfile_URL, 'ftp://\([^/]*\).*', '\1', '')
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151 let dir = substitute(g:spellfile_URL, 'ftp://[^/]*/\(.*\)', '\1', '')
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152 exe 'Nread "' . machine . ' anonymous vim7user ' . dir . '/' . a:fname . '"'
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153 else
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154 exe 'Nread ' g:spellfile_URL . '/' . a:fname
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155 endif
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884
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156 endfunc
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