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29236
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1 " Vim filetype plugin autoload file
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2 " Language: man
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3 " Maintainer: Jason Franklin <vim@justemail.net>
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4 " Maintainer: SungHyun Nam <goweol@gmail.com>
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5 " Autoload Split: Bram Moolenaar
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6 " Last Change: 2022 Jun 18
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7
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8 let s:cpo_save = &cpo
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9 set cpo-=C
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10
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11 let s:man_tag_depth = 0
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12
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13 let s:man_sect_arg = ""
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14 let s:man_find_arg = "-w"
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15 try
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16 if !has("win32") && $OSTYPE !~ 'cygwin\|linux' && system('uname -s') =~ "SunOS" && system('uname -r') =~ "^5"
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17 let s:man_sect_arg = "-s"
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18 let s:man_find_arg = "-l"
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19 endif
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20 catch /E145:/
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21 " Ignore the error in restricted mode
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22 endtry
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23
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24 func dist#man#PreGetPage(cnt)
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25 if a:cnt == 0
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26 let old_isk = &iskeyword
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27 if &ft == 'man'
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28 setl iskeyword+=(,)
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29 endif
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30 let str = expand("<cword>")
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31 let &l:iskeyword = old_isk
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32 let page = substitute(str, '(*\(\k\+\).*', '\1', '')
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33 let sect = substitute(str, '\(\k\+\)(\([^()]*\)).*', '\2', '')
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34 if match(sect, '^[0-9 ]\+$') == -1
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35 let sect = ""
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36 endif
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37 if sect == page
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38 let sect = ""
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39 endif
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40 else
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41 let sect = a:cnt
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42 let page = expand("<cword>")
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43 endif
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44 call dist#man#GetPage('', sect, page)
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45 endfunc
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46
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47 func s:GetCmdArg(sect, page)
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48
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49 if empty(a:sect)
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50 return shellescape(a:page)
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51 endif
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52
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53 return s:man_sect_arg . ' ' . shellescape(a:sect) . ' ' . shellescape(a:page)
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54 endfunc
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55
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56 func s:FindPage(sect, page)
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57 let l:cmd = printf('man %s %s', s:man_find_arg, s:GetCmdArg(a:sect, a:page))
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58 call system(l:cmd)
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59
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60 if v:shell_error
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61 return 0
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62 endif
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63
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64 return 1
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65 endfunc
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66
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67 func dist#man#GetPage(cmdmods, ...)
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68 if a:0 >= 2
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69 let sect = a:1
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70 let page = a:2
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71 elseif a:0 >= 1
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72 let sect = ""
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73 let page = a:1
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74 else
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75 return
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76 endif
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77
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78 " To support: nmap K :Man <cword>
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79 if page == '<cword>'
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80 let page = expand('<cword>')
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81 endif
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82
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83 if !exists('g:ft_man_no_sect_fallback') || (g:ft_man_no_sect_fallback == 0)
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84 if sect != "" && s:FindPage(sect, page) == 0
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85 let sect = ""
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86 endif
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87 endif
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88 if s:FindPage(sect, page) == 0
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89 let msg = 'man.vim: no manual entry for "' . page . '"'
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90 if !empty(sect)
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91 let msg .= ' in section ' . sect
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92 endif
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93 echomsg msg
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94 return
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95 endif
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96 exec "let s:man_tag_buf_".s:man_tag_depth." = ".bufnr("%")
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97 exec "let s:man_tag_lin_".s:man_tag_depth." = ".line(".")
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98 exec "let s:man_tag_col_".s:man_tag_depth." = ".col(".")
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99 let s:man_tag_depth = s:man_tag_depth + 1
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100
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101 let open_cmd = 'edit'
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102
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103 " Use an existing "man" window if it exists, otherwise open a new one.
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104 if &filetype != "man"
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105 let thiswin = winnr()
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106 exe "norm! \<C-W>b"
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107 if winnr() > 1
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108 exe "norm! " . thiswin . "\<C-W>w"
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109 while 1
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110 if &filetype == "man"
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111 break
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112 endif
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113 exe "norm! \<C-W>w"
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114 if thiswin == winnr()
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115 break
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116 endif
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117 endwhile
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118 endif
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119 if &filetype != "man"
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120 if exists("g:ft_man_open_mode")
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121 if g:ft_man_open_mode == 'vert'
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122 let open_cmd = 'vsplit'
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123 elseif g:ft_man_open_mode == 'tab'
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124 let open_cmd = 'tabedit'
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125 else
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126 let open_cmd = 'split'
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127 endif
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128 else
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129 let open_cmd = a:cmdmods . ' split'
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130 endif
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131 endif
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132 endif
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133
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134 silent execute open_cmd . " $HOME/" . page . '.' . sect . '~'
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135
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136 " Avoid warning for editing the dummy file twice
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137 setl buftype=nofile noswapfile
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138
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139 setl fdc=0 ma nofen nonu nornu
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140 %delete _
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141 let unsetwidth = 0
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142 if empty($MANWIDTH)
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143 let $MANWIDTH = winwidth(0)
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144 let unsetwidth = 1
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145 endif
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146
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147 " Ensure Vim is not recursively invoked (man-db does this) when doing ctrl-[
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148 " on a man page reference by unsetting MANPAGER.
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149 " Some versions of env(1) do not support the '-u' option, and in such case
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150 " we set MANPAGER=cat.
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151 if !exists('s:env_has_u')
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152 call system('env -u x true')
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153 let s:env_has_u = (v:shell_error == 0)
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154 endif
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155 let env_cmd = s:env_has_u ? 'env -u MANPAGER' : 'env MANPAGER=cat'
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156 let env_cmd .= ' GROFF_NO_SGR=1'
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157 let man_cmd = env_cmd . ' man ' . s:GetCmdArg(sect, page) . ' | col -b'
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158 silent exec "r !" . man_cmd
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159
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160 if unsetwidth
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161 let $MANWIDTH = ''
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162 endif
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163 " Remove blank lines from top and bottom.
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164 while line('$') > 1 && getline(1) =~ '^\s*$'
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165 1delete _
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166 endwhile
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167 while line('$') > 1 && getline('$') =~ '^\s*$'
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168 $delete _
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169 endwhile
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170 1
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171 setl ft=man nomod
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172 setl bufhidden=hide
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173 setl nobuflisted
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174 setl noma
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175 endfunc
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176
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177 func dist#man#PopPage()
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178 if s:man_tag_depth > 0
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179 let s:man_tag_depth = s:man_tag_depth - 1
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180 exec "let s:man_tag_buf=s:man_tag_buf_".s:man_tag_depth
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181 exec "let s:man_tag_lin=s:man_tag_lin_".s:man_tag_depth
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182 exec "let s:man_tag_col=s:man_tag_col_".s:man_tag_depth
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183 exec s:man_tag_buf."b"
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184 exec s:man_tag_lin
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185 exec "norm! ".s:man_tag_col."|"
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186 exec "unlet s:man_tag_buf_".s:man_tag_depth
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187 exec "unlet s:man_tag_lin_".s:man_tag_depth
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188 exec "unlet s:man_tag_col_".s:man_tag_depth
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189 unlet s:man_tag_buf s:man_tag_lin s:man_tag_col
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190 endif
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191 endfunc
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192
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193 let &cpo = s:cpo_save
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194 unlet s:cpo_save
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195
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196 " vim: set sw=2 ts=8 noet:
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