annotate runtime/ftplugin/man.vim @ 18415:52eb1bbf7690

Added tag v8.1.2201 for changeset 6b8508ea90d798b96e29aaa21d6f8021c43128a7
author Bram Moolenaar <Bram@vim.org>
date Wed, 23 Oct 2019 21:45:04 +0200
parents 03b854983b14
children 350e1d3131d8
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1 " Vim filetype plugin file
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2 " Language: man
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3 " Maintainer: SungHyun Nam <goweol@gmail.com>
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4 " Last Change: 2019 Sep 26
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5 " (fix by Jason Franklin)
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6
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7 " To make the ":Man" command available before editing a manual page, source
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8 " this script from your startup vimrc file.
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9
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10 " If 'filetype' isn't "man", we must have been called to only define ":Man".
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11 if &filetype == "man"
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12
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13 " Only do this when not done yet for this buffer
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14 if exists("b:did_ftplugin")
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15 finish
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16 endif
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17 let b:did_ftplugin = 1
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18 endif
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19
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20 let s:cpo_save = &cpo
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21 set cpo-=C
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22
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23 if &filetype == "man"
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24 " allow dot and dash in manual page name.
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25 setlocal iskeyword+=\.,-
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26 let b:undo_ftplugin = "setlocal iskeyword<"
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27
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28 " Add mappings, unless the user didn't want this.
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29 if !exists("no_plugin_maps") && !exists("no_man_maps")
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30 if !hasmapto('<Plug>ManBS')
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31 nmap <buffer> <LocalLeader>h <Plug>ManBS
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32 let b:undo_ftplugin = b:undo_ftplugin
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33 \ . '|silent! nunmap <buffer> <LocalLeader>h'
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34 endif
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35 nnoremap <buffer> <Plug>ManBS :%s/.\b//g<CR>:setl nomod<CR>''
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36
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37 nnoremap <buffer> <c-]> :call <SID>PreGetPage(v:count)<CR>
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38 nnoremap <buffer> <c-t> :call <SID>PopPage()<CR>
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39 nnoremap <buffer> <silent> q :q<CR>
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40
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41 " Add undo commands for the maps
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42 let b:undo_ftplugin = b:undo_ftplugin
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43 \ . '|silent! nunmap <buffer> <Plug>ManBS'
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44 \ . '|silent! nunmap <buffer> <c-]>'
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45 \ . '|silent! nunmap <buffer> <c-t>'
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46 \ . '|silent! nunmap <buffer> q'
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47 endif
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48
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49 if exists('g:ft_man_folding_enable') && (g:ft_man_folding_enable == 1)
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50 setlocal foldmethod=indent foldnestmax=1 foldenable
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51 let b:undo_ftplugin = b:undo_ftplugin
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52 \ . '|silent! setl fdm< fdn< fen<'
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53 endif
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54
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55 endif
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56
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57 if exists(":Man") != 2
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58 com -nargs=+ -complete=shellcmd Man call s:GetPage(<q-mods>, <f-args>)
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59 nmap <Leader>K :call <SID>PreGetPage(0)<CR>
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60 nmap <Plug>ManPreGetPage :call <SID>PreGetPage(0)<CR>
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61 endif
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62
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63 " Define functions only once.
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64 if !exists("s:man_tag_depth")
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65
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66 let s:man_tag_depth = 0
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67
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68 let s:man_sect_arg = ""
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69 let s:man_find_arg = "-w"
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70 try
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71 if !has("win32") && $OSTYPE !~ 'cygwin\|linux' && system('uname -s') =~ "SunOS" && system('uname -r') =~ "^5"
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72 let s:man_sect_arg = "-s"
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73 let s:man_find_arg = "-l"
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74 endif
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75 catch /E145:/
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76 " Ignore the error in restricted mode
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77 endtry
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78
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79 func <SID>PreGetPage(cnt)
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80 if a:cnt == 0
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81 let old_isk = &iskeyword
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82 if &ft == 'man'
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83 setl iskeyword+=(,)
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84 endif
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85 let str = expand("<cword>")
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86 let &l:iskeyword = old_isk
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87 let page = substitute(str, '(*\(\k\+\).*', '\1', '')
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88 let sect = substitute(str, '\(\k\+\)(\([^()]*\)).*', '\2', '')
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89 if match(sect, '^[0-9 ]\+$') == -1
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90 let sect = ""
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91 endif
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92 if sect == page
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93 let sect = ""
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94 endif
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95 else
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96 let sect = a:cnt
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97 let page = expand("<cword>")
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98 endif
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99 call s:GetPage(sect, page)
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100 endfunc
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101
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102 func <SID>GetCmdArg(sect, page)
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103 if a:sect == ''
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104 return a:page
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105 endif
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106 return s:man_sect_arg.' '.a:sect.' '.a:page
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107 endfunc
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108
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109 func <SID>FindPage(sect, page)
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110 let where = system("man ".s:man_find_arg.' '.s:GetCmdArg(a:sect, a:page))
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111 if where !~ "^/"
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112 if matchstr(where, " [^ ]*$") !~ "^ /"
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113 return 0
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114 endif
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115 endif
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116 return 1
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117 endfunc
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118
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119 func <SID>GetPage(cmdmods, ...)
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120 if a:0 >= 2
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121 let sect = a:1
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122 let page = a:2
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123 elseif a:0 >= 1
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124 let sect = ""
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125 let page = a:1
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126 else
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127 return
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128 endif
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129
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130 " To support: nmap K :Man <cword>
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131 if page == '<cword>'
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132 let page = expand('<cword>')
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133 endif
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134
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135 if !exists('g:ft_man_no_sect_fallback') || (g:ft_man_no_sect_fallback == 0)
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136 if sect != "" && s:FindPage(sect, page) == 0
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137 let sect = ""
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138 endif
7
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139 endif
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140 if s:FindPage(sect, page) == 0
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141 let msg = "\nNo manual entry for ".page
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142 if sect != ""
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143 let msg .= " in section ".sect
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144 endif
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145 echo msg
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146 return
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147 endif
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148 exec "let s:man_tag_buf_".s:man_tag_depth." = ".bufnr("%")
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149 exec "let s:man_tag_lin_".s:man_tag_depth." = ".line(".")
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150 exec "let s:man_tag_col_".s:man_tag_depth." = ".col(".")
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151 let s:man_tag_depth = s:man_tag_depth + 1
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152
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153 let open_cmd = 'edit'
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154
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155 " Use an existing "man" window if it exists, otherwise open a new one.
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156 if &filetype != "man"
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157 let thiswin = winnr()
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158 exe "norm! \<C-W>b"
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159 if winnr() > 1
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160 exe "norm! " . thiswin . "\<C-W>w"
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161 while 1
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162 if &filetype == "man"
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163 break
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164 endif
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165 exe "norm! \<C-W>w"
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166 if thiswin == winnr()
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167 break
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168 endif
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169 endwhile
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170 endif
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171 if &filetype != "man"
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172 if exists("g:ft_man_open_mode")
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173 if g:ft_man_open_mode == 'vert'
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174 let open_cmd = 'vsplit'
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175 elseif g:ft_man_open_mode == 'tab'
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176 let open_cmd = 'tabedit'
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177 else
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178 let open_cmd = 'split'
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179 endif
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180 else
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181 let open_cmd = a:cmdmods . ' split'
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182 endif
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183 endif
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184 endif
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185
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186 silent execute open_cmd . " $HOME/" . page . '.' . sect . '~'
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187
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188 " Avoid warning for editing the dummy file twice
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189 setl buftype=nofile noswapfile
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190
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191 setl fdc=0 ma nofen nonu nornu
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192 silent exec "norm! 1GdG"
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193 let unsetwidth = 0
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194 if empty($MANWIDTH)
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195 let $MANWIDTH = winwidth(0)
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196 let unsetwidth = 1
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197 endif
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198
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199 " Ensure Vim is not recursively invoked (man-db does this) when doing ctrl-[
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200 " on a man page reference by unsetting MANPAGER.
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201 " Some versions of env(1) do not support the '-u' option, and in such case
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202 " we set MANPAGER=cat.
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203 if !exists('s:env_has_u')
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204 call system('env -u x true')
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205 let s:env_has_u = (v:shell_error == 0)
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206 endif
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207 let env_cmd = s:env_has_u ? 'env -u MANPAGER' : 'env MANPAGER=cat'
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208 let man_cmd = env_cmd . ' man ' . s:GetCmdArg(sect, page) . ' | col -b'
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209 silent exec "r !" . man_cmd
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210
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211 if unsetwidth
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212 let $MANWIDTH = ''
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213 endif
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214 " Remove blank lines from top and bottom.
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215 while line('$') > 1 && getline(1) =~ '^\s*$'
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216 silent keepj norm! ggdd
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217 endwhile
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218 while line('$') > 1 && getline('$') =~ '^\s*$'
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219 silent keepj norm! Gdd
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220 endwhile
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221 1
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222 setl ft=man nomod
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223 setl bufhidden=hide
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224 setl nobuflisted
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225 setl noma
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226 endfunc
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227
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228 func <SID>PopPage()
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229 if s:man_tag_depth > 0
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230 let s:man_tag_depth = s:man_tag_depth - 1
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231 exec "let s:man_tag_buf=s:man_tag_buf_".s:man_tag_depth
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232 exec "let s:man_tag_lin=s:man_tag_lin_".s:man_tag_depth
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233 exec "let s:man_tag_col=s:man_tag_col_".s:man_tag_depth
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234 exec s:man_tag_buf."b"
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235 exec s:man_tag_lin
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236 exec "norm! ".s:man_tag_col."|"
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237 exec "unlet s:man_tag_buf_".s:man_tag_depth
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238 exec "unlet s:man_tag_lin_".s:man_tag_depth
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239 exec "unlet s:man_tag_col_".s:man_tag_depth
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240 unlet s:man_tag_buf s:man_tag_lin s:man_tag_col
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241 endif
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242 endfunc
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243
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244 endif
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245
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246 let &cpo = s:cpo_save
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247 unlet s:cpo_save
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248
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249 " vim: set sw=2 ts=8 noet: