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1 *tabpage.txt* For Vim version 7.0aa. Last change: 2006 Feb 22
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4 VIM REFERENCE MANUAL by Bram Moolenaar
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7 Editing with windows in multiple tab pages. *tab-page* *tabpage*
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8
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9 The commands which have been added to use multiple tab pages are explained
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10 here. Additionally, there are explanations for commands that work differently
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11 when used in combination with more than one tab page.
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12
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13 1. Introduction |tab-page-intro|
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14 2. Commands |tab-page-commands|
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15 3. Other items |tab-page-other|
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16 4. Setting 'tabline' |setting-tabline|
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17
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18 {Vi does not have any of these commands}
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19 {not able to use multiple tab pages when the |+windows| feature was disabled
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20 at compile time}
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21
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22 ==============================================================================
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23 1. Introduction *tab-page-intro*
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24
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25 A tab page holds one or more windows. You can easily switch between tab
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26 pages, so that you have several collections of windows to work on different
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27 things.
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28
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29 Usually you will see a list of labels at the top of the Vim window, one for
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30 each tab page. With the mouse you can click on the label to jump to that tab
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31 page. There are other ways to move between tab pages, see below.
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32
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33 Most commands work only in the current tab page. That includes the |CTRL-W|
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34 commands, |:windo|, |:all| and |:ball|. The commands that are aware of
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35 other tab pages than the current one are mentioned below.
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36
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37 Tabs are also a nice way to edit a buffer temporarily without changing the
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38 current window layout. Open a new tab page, do whatever you want to do and
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39 close the tab page.
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40
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41 ==============================================================================
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42 2. Commands *tab-page-commands*
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43
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44 OPENING A NEW TAB PAGE:
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45
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46 When starting Vim "vim -p filename ..." opens each file argument in a separate
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47 tab page (up to 10). |-p|
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48
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49 :tabe[dit] *:tabe* *:tabedit* *:tabn* *:tabnew*
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50 :tabn[ew] Open a new tab page with an empty window.
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51
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52 :tabe[dit] [++opt] [+cmd] {file}
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53 :tabn[ew] [++opt] [+cmd] {file}
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54 Open a new tab page and edit {file}, like with |:edit|.
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56 :tabf[ind] [++opt] [+cmd] {file} *:tabf* *:tabfind*
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57 Open a new tab page and edit {file} in 'path', like with
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58 |:find|.
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59 {not available when the |+file_in_path| feature was disabled
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60 at compile time}
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61
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62
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63 CLOSING A TAB PAGE:
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64
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65 Using |:close| in the last window of a tab page closes it.
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66
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67 Using the mouse: If the tab page line is displayed you can click in the "X" at
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68 the top right to close the current tab page. |'tabline'|
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69
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70 *:tabc* *:tabclose*
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71 :tabc[lose][!] Close current tab page.
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72 This command fails when:
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73 - There is only one tab page on the screen. *E784*
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74 - When 'hidden' is not set, [!] is not used, a buffer has
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75 changes, and there is no other window on this buffer.
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76 Changes to the buffer are not written and won't get lost, so
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77 this is a "safe" command.
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78
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79 :tabc[lose][!] {count}
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80 Close tab page {count}. Fails in the same way as ':tabclose"
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81 above.
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82
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83 *:tabo* *:tabonly*
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84 :tabo[nly][!] Close all other tab pages.
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85 When the 'hidden' option is set, all buffers in closed windows
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86 become hidden.
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87 When 'hidden' is not set, and the 'autowrite' option is set,
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88 modified buffers are written. Otherwise, windows that have
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89 buffers that are modified are not removed, unless the [!] is
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90 given, then they become hidden. But modified buffers are
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91 never abandoned, so changes cannot get lost.
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92
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93
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94 SWITCHING TO ANOTHER TAB PAGE:
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95
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96 Using the mouse: If the tab page line is displayed you can click in a tab page
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97 label to switch to that tab page. |'tabline'|
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98
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99 :tab *:tab* *gt*
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100 gt Go to the next tab page. Wraps around from the last to the
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101 first one.
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102
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103 :tab {count}
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104 {count}gt Go to tab page {count}. The first tab page has number one.
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105
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106
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107 Other commands:
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108 *:tabs*
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109 :tabs List the tab pages and the windows they contain. Shows a "+"
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110 for modified buffers.
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111
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112 ==============================================================================
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113 3. Other items *tab-page-other*
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114
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115 Diff mode works per tab page. You can see the diffs between several files
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116 within one tab page. Other tab pages can show differences between other
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117 files.
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118
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119 The TabLeave and TabEnter autocommand events can be used to do something when
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120 switching from one tab page to another. The exact order depends on what you
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121 are doing. When creating a new tab page this works as if you create a new
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122 window on the same buffer and then edit another buffer. Thus ":tabnew"
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123 triggers:
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124 WinLeave leave current window
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125 TabLeave leave current tab page
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126 TabEnter enter new tab page
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127 WinEnter enter window in new tab page
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128 BufLeave leave current buffer
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129 BufEnter enter new empty buffer
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130
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131 When switching to another tab page the order is:
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132 BufLeave
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133 WinLeave
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134 TabLeave
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135 TabEnter
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136 WinEnter
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137 BufEnter
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138
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139 ==============================================================================
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140 4. Setting 'tabline' *setting-tabline*
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141
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142 You can use the 'showtabline' option to specify when you want the line with
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143 tab page labels to appear: never, when there is more than one tab page or
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144 always.
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145
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146 The highlighting of the tab pages line is set with the groups TabLine
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147 TabLineSel and TabLineFill. |hl-TabLine| |hl-TabLineSel| |hl-TabLineFill|
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148
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149 The 'tabline' option allows you to define your preferred way to tab pages
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150 labels. This isn't easy, thus an example will be given here.
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151
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152 For basics see the 'statusline' option. The same items can be used in the
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153 'tabline' option. Additionally, the |tabpagebuflist()|, |tabpagenr()| and
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154 |tabpagewinnr()| functions are useful.
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155
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156 Since the number of tab labels will vary, you need to use an expresion for the
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157 whole option. Something like: >
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158 :set tabline=%!MyTabLine()
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159
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160 Then define the MyTabLine() function to list all the tab pages labels. A
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161 convenient method is to split it in two parts: First go over all the tab
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162 pages and define labels for them. Then get the label for each tab page. >
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163
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164 function MyTabLine()
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165 let s = ''
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166 for i in range(tabpagenr('$'))
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167 " select the highlighting
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168 if i + 1 == tabpagenr()
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169 let s .= '%#TabLineSel#'
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170 else
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171 let s .= '%#TabLine#'
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172 endif
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173
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174 " set the tab page number (for mouse clicks)
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175 let s .= '%' . (i + 1) . 'T'
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176
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177 " the label is made by MyTabLabel()
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178 let s .= ' %{MyTabLabel(' . (i + 1) . ')} '
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179 endfor
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180
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181 " after the last tab fill with TabLineFill and reset tab page nr
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182 let s .= '%#TabLineFill#%T'
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183
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184 " right-align the label to close the current tab page
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185 if tabpagenr('$') > 1
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186 let s .= '%=%#TabLine#%999Xclose'
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187 endif
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188
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189 return s
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190 endfunction
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191
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192 Now the MyTabLabel() function is called for each tab page to get its label. >
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193
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194 function MyTabLabel(n)
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195 let buflist = tabpagebuflist(a:n)
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196 let winnr = tabpagewinnr(a:n)
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197 return bufname(buflist[winnr - 1])
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198 endfunction
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199
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200 This is just a simplistic example that results in a tab pages line that
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201 resembles the default, but without adding a + for a modified buffer or
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202 trunctating the names. You will want to reduce the width of labels in a
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203 clever way when there is not enough room. Check the 'columns' option for the
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204 space available.
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205
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206 vim:tw=78:ts=8:ft=help:norl:
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