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1 *tabpage.txt* For Vim version 7.0c. Last change: 2006 Mar 03
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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 5. Setting 'guitablabel' |setting-guitablabel|
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18
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19 {Vi does not have any of these commands}
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20 {not able to use multiple tab pages when the |+windows| feature was disabled
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21 at compile time}
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22
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23 ==============================================================================
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24 1. Introduction *tab-page-intro*
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25
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26 A tab page holds one or more windows. You can easily switch between tab
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27 pages, so that you have several collections of windows to work on different
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28 things.
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29
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30 Usually you will see a list of labels at the top of the Vim window, one for
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31 each tab page. With the mouse you can click on the label to jump to that tab
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32 page. There are other ways to move between tab pages, see below.
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33
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34 Most commands work only in the current tab page. That includes the |CTRL-W|
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35 commands, |:windo|, |:all| and |:ball| (when not using the |:tab| modifier).
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36 The commands that are aware of other tab pages than the current one are
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37 mentioned below.
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38
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39 Tabs are also a nice way to edit a buffer temporarily without changing the
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40 current window layout. Open a new tab page, do whatever you want to do and
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41 close the tab page.
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42
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43 ==============================================================================
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44 2. Commands *tab-page-commands*
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45
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46 OPENING A NEW TAB PAGE:
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47
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48 When starting Vim "vim -p filename ..." opens each file argument in a separate
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49 tab page (up to 'tabpagemax'). |-p|
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50
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51 A double click with the mouse in the non-GUI tab pages line opens a new, empty
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52 tab page. It is placed left of the position of the click. The first click
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53 may select another tab page first, causing an extra screen update.
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54
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55 In the GUI tab pages line you can use the right mouse button to open menu.
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56 |tabline-menu|.
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57
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58 :tabe[dit] *:tabe* *:tabedit* *:tabnew*
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59 :tabnew Open a new tab page with an empty window, after the current
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60 tab page.
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61
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62 :tabe[dit] [++opt] [+cmd] {file}
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63 :tabnew [++opt] [+cmd] {file}
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64 Open a new tab page and edit {file}, like with |:edit|.
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65
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66 :tabf[ind] [++opt] [+cmd] {file} *:tabf* *:tabfind*
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67 Open a new tab page and edit {file} in 'path', like with
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68 |:find|.
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69 {not available when the |+file_in_path| feature was disabled
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70 at compile time}
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71
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72 :[count]tab {cmd} *:tab*
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73 Execute {cmd} and when it opens a new window open a new tab
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74 page instead. Doesn't work for |:diffsplit| or |:diffpatch|.
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75 When [count] is omitted the tab page appears after the current
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76 one. When [count] is specified the new tab page comes after
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77 tab page [count]. Use ":0tab cmd" to get the new tab page as
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78 the first one. Examples: >
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79 :tab split " opens current buffer in new tab page
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80 :tab help gt " opens tab page with help for "gt"
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81
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82
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83 CLOSING A TAB PAGE:
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84
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85 Closing the last window of a tab page closes the tab page too, unless there is
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86 only one tab page.
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87
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88 Using the mouse: If the tab page line is displayed you can click in the "X" at
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89 the top right to close the current tab page. A custom |'tabline'| may show
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90 something else.
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91
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92 *:tabc* *:tabclose*
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93 :tabc[lose][!] Close current tab page.
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94 This command fails when:
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95 - There is only one tab page on the screen. *E784*
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96 - When 'hidden' is not set, [!] is not used, a buffer has
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97 changes, and there is no other window on this buffer.
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98 Changes to the buffer are not written and won't get lost, so
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99 this is a "safe" command.
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100
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101 :tabc[lose][!] {count}
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102 Close tab page {count}. Fails in the same way as ':tabclose"
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103 above.
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104
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105 *:tabo* *:tabonly*
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106 :tabo[nly][!] Close all other tab pages.
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107 When the 'hidden' option is set, all buffers in closed windows
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108 become hidden.
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109 When 'hidden' is not set, and the 'autowrite' option is set,
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110 modified buffers are written. Otherwise, windows that have
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111 buffers that are modified are not removed, unless the [!] is
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112 given, then they become hidden. But modified buffers are
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113 never abandoned, so changes cannot get lost.
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114
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115
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116 SWITCHING TO ANOTHER TAB PAGE:
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117
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118 Using the mouse: If the tab page line is displayed you can click in a tab page
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119 label to switch to that tab page. Click where there is no label to go to the
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120 next tab page. |'tabline'|
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121
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122 :tabn[ext] *:tabn* *:tabnext* *gt*
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123 gt Go to the next tab page. Wraps around from the last to the
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124 first one.
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125
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126 :tabn[ext] {count}
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127 {count}gt Go to tab page {count}. The first tab page has number one.
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128
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129
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130 :tabp[revious] *:tabp* *:tabprevious* *gT*
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131 :tabN[ext] *:tabN* *:tabNext*
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132 gT Go to the previous tab page. Wraps around from the first one
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133 to the last one.
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134
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135 :tabp[revious] {count}
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136 :tabN[ext] {count}
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137 {count}gT Go {count} tab pages back. Wraps around from the first one
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138 to the last one.
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139
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140 :tabr[ewind] *:tabfir* *:tabfirst* *:tabr* *:tabrewind*
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141 :tabfir[st] Go to the first tab page.
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142
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143 *:tabl* *:tablast*
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144 :tabl[ast] Go to the last tab page.
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145
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146
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147 Other commands:
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148 *:tabs*
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149 :tabs List the tab pages and the windows they contain.
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150 Shows a ">" for the current window.
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151 Shows a "+" for modified buffers.
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152
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153
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154 REORDERING TAB PAGES:
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155
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156 *:tabm* *:tabmove*
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157 :tabmove N Move the current tab page to after tab page N. Use zero to
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158 make the current tab page the first one. Without N the tab
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159 page is made the last one.
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160
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161
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162 LOOPING OVER TAB PAGES:
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163
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164 *:tabd* *:tabdo*
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165 :tabd[o] {cmd} Execute {cmd} in each tab page.
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166 It works like doing this: >
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167 :tabfirst
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168 :{cmd}
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169 :tabnext
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170 :{cmd}
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171 etc.
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172 < This only operates in the current window of each tab page.
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173 When an error is detected on one tab page, further tab pages
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174 will not be visited.
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175 The last tab page (or where an error occurred) becomes the
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176 current tab page.
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177 {cmd} can contain '|' to concatenate several commands.
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178 {cmd} must not open or close tab pages or reorder them.
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179 {not in Vi} {not available when compiled without the
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180 |+listcmds| feature}
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181 Also see |:windo|, |:argdo| and |:bufdo|.
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182
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183 ==============================================================================
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184 3. Other items *tab-page-other*
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185
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186 *tabline-menu*
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187 The GUI tab pages line has a popup menu. It is accessed with a right click.
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188 The entries are:
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189 Close Close the tab page under the mouse pointer. The
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190 current one if there is no label under the mouse
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191 pointer.
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192 New Tab Open a tab page, editing an empty buffer. It appears
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193 to the left of the mouse pointer.
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194 Open Tab... Like "New Tab" and additionaly use a file selector to
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195 select a file to edit.
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196
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197 Diff mode works per tab page. You can see the diffs between several files
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198 within one tab page. Other tab pages can show differences between other
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199 files.
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200
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201 The TabLeave and TabEnter autocommand events can be used to do something when
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202 switching from one tab page to another. The exact order depends on what you
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203 are doing. When creating a new tab page this works as if you create a new
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204 window on the same buffer and then edit another buffer. Thus ":tabnew"
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205 triggers:
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206 WinLeave leave current window
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207 TabLeave leave current tab page
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208 TabEnter enter new tab page
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209 WinEnter enter window in new tab page
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210 BufLeave leave current buffer
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211 BufEnter enter new empty buffer
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212
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213 When switching to another tab page the order is:
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214 BufLeave
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215 WinLeave
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216 TabLeave
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217 TabEnter
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218 WinEnter
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219 BufEnter
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220
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221 ==============================================================================
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222 4. Setting 'tabline' *setting-tabline*
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223
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224 The 'tabline' option specifies what the line with tab pages labels looks like.
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225 It is only used when there is no GUI tab line.
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226
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227 You can use the 'showtabline' option to specify when you want the line with
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228 tab page labels to appear: never, when there is more than one tab page or
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229 always.
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230
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231 The highlighting of the tab pages line is set with the groups TabLine
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232 TabLineSel and TabLineFill. |hl-TabLine| |hl-TabLineSel| |hl-TabLineFill|
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233
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234 The 'tabline' option allows you to define your preferred way to tab pages
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235 labels. This isn't easy, thus an example will be given here.
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236
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237 For basics see the 'statusline' option. The same items can be used in the
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238 'tabline' option. Additionally, the |tabpagebuflist()|, |tabpagenr()| and
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239 |tabpagewinnr()| functions are useful.
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240
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241 Since the number of tab labels will vary, you need to use an expresion for the
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242 whole option. Something like: >
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243 :set tabline=%!MyTabLine()
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244
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245 Then define the MyTabLine() function to list all the tab pages labels. A
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246 convenient method is to split it in two parts: First go over all the tab
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247 pages and define labels for them. Then get the label for each tab page. >
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248
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249 function MyTabLine()
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250 let s = ''
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251 for i in range(tabpagenr('$'))
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252 " select the highlighting
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253 if i + 1 == tabpagenr()
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254 let s .= '%#TabLineSel#'
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255 else
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256 let s .= '%#TabLine#'
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257 endif
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258
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259 " set the tab page number (for mouse clicks)
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260 let s .= '%' . (i + 1) . 'T'
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261
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262 " the label is made by MyTabLabel()
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263 let s .= ' %{MyTabLabel(' . (i + 1) . ')} '
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264 endfor
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265
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266 " after the last tab fill with TabLineFill and reset tab page nr
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267 let s .= '%#TabLineFill#%T'
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268
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269 " right-align the label to close the current tab page
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270 if tabpagenr('$') > 1
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271 let s .= '%=%#TabLine#%999Xclose'
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272 endif
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273
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274 return s
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275 endfunction
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276
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277 Now the MyTabLabel() function is called for each tab page to get its label. >
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278
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279 function MyTabLabel(n)
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280 let buflist = tabpagebuflist(a:n)
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281 let winnr = tabpagewinnr(a:n)
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282 return bufname(buflist[winnr - 1])
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283 endfunction
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284
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285 This is just a simplistic example that results in a tab pages line that
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286 resembles the default, but without adding a + for a modified buffer or
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287 trunctating the names. You will want to reduce the width of labels in a
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288 clever way when there is not enough room. Check the 'columns' option for the
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289 space available.
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290
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291 ==============================================================================
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292 5. Setting 'guitablabel' *setting-guitablabel*
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293
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294 When the GUI tab pages line is displayed, 'guitablabel' can be used to
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295 specify the label to display for each tab page. Unlike 'tabline', which
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296 specifies the whole tab pages line at once, 'guitablabel' is used for each
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297 label separately.
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298
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299 See the 'statusline' option for the format of the value.
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300
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301 The "%N" item can be used for the current tab page number. The |v:lnum|
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302 variable is also set to this number when 'guitablabel' is evaluated.
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303 The items that use a file name refer to the current window of the tab page.
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304
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305 Note that syntax highlighting is not used for 'guitablabel'. The %T and %X
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306 items are also ignored.
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307
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308 A simple example that puts the tab page number and the buffer name in the
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309 label: >
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310 :set guitablabel=%N\ %f
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311
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312 An example that resembles the default: Show the number of windows in the tab
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313 page and a '+' if there is a modifed buffer: >
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314
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315 function GuiTabLabel()
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316 let label = ''
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317 let bufnrlist = tabpagebuflist(v:lnum)
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318
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319 " Add '+' if one of the buffers in the tab page is modified
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320 for bufnr in bufnrlist
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321 if getbufvar(bufnr, "&modified")
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322 let label = '+'
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323 break
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324 endif
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325 endfor
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326
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327 " Append the number of windows in the tab page if more than one
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328 let wincount = tabpagewinnr(v:lnum, '$')
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329 if wincount > 1
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330 let label .= wincount
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331 endif
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332 if label != ''
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333 let label .= ' '
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334 endif
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335
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336 " Append the buffer name
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337 return label . bufname(bufnrlist[tabpagewinnr(v:lnum) - 1])
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338 endfunction
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339
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340 set guitablabel=%{GuiTabLabel()}
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341
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342 Note that the function must be defined before setting the option, otherwise
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343 you get an error message for the function not being known.
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344
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345
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346 vim:tw=78:ts=8:ft=help:norl:
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