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1 *map.txt* For Vim version 7.0aa. Last change: 2006 Mar 10
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4 VIM REFERENCE MANUAL by Bram Moolenaar
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7 Key mapping, abbreviations and user-defined commands.
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9 This subject is introduced in sections |05.3|, |24.7| and |40.1| of the user
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10 manual.
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11
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12 1. Key mapping |key-mapping|
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13 1.1 MAP COMMANDS |:map-commands|
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14 1.2 Special arguments |:map-arguments|
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15 1.3 Mapping and modes |:map-modes|
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16 1.4 Listing mappings |map-listing|
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17 1.5 Mapping special keys |:map-special-keys|
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18 1.6 Special characters |:map-special-chars|
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19 1.7 What keys to map |map-which-keys|
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20 1.8 Examples |map-examples|
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21 1.9 Using mappings |map-typing|
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22 1.10 Mapping alt-keys |:map-alt-keys|
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23 1.11 Mapping an operator |:map-operator|
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24 2. Abbreviations |abbreviations|
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25 3. Local mappings and functions |script-local|
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26 4. User-defined commands |user-commands|
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27
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28 ==============================================================================
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29 1. Key mapping *key-mapping* *mapping* *macro*
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30
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31 Key mapping is used to change the meaning of typed keys. The most common use
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32 is to define a sequence commands for a function key. Example: >
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33
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34 :map <F2> a<C-R>=strftime("%c")<CR><Esc>
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35
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36 This appends the current date and time after the cursor (in <> notation |<>|).
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37
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38
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39 1.1 MAP COMMANDS *:map-commands*
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40
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41 There are commands to enter new mappings, remove mappings and list mappings.
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42 See |map-overview| for the various forms of "map" and their relationships with
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43 modes.
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44
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45 {lhs} means left-hand-side *{lhs}*
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46 {rhs} means right-hand-side *{rhs}*
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47
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48 :map {lhs} {rhs} |mapmode-nvo| *:map*
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49 :nm[ap] {lhs} {rhs} |mapmode-n| *:nm* *:nmap*
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50 :vm[ap] {lhs} {rhs} |mapmode-v| *:vm* *:vmap*
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51 :om[ap] {lhs} {rhs} |mapmode-o| *:om* *:omap*
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52 :map! {lhs} {rhs} |mapmode-ic| *:map!*
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53 :im[ap] {lhs} {rhs} |mapmode-i| *:im* *:imap*
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54 :lm[ap] {lhs} {rhs} |mapmode-l| *:lm* *:lmap*
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55 :cm[ap] {lhs} {rhs} |mapmode-c| *:cm* *:cmap*
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56 Map the key sequence {lhs} to {rhs} for the modes
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57 where the map command applies. The result, including
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58 {rhs}, is then further scanned for mappings. This
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59 allows for nested and recursive use of mappings.
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60
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61
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62 :no[remap] {lhs} {rhs} |mapmode-nvo| *:no* *:noremap*
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63 :nn[oremap] {lhs} {rhs} |mapmode-n| *:nn* *:nnoremap*
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64 :vn[oremap] {lhs} {rhs} |mapmode-v| *:vn* *:vnoremap*
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65 :ono[remap] {lhs} {rhs} |mapmode-o| *:ono* *:onoremap*
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66 :no[remap]! {lhs} {rhs} |mapmode-ic| *:no!* *:noremap!*
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67 :ino[remap] {lhs} {rhs} |mapmode-i| *:ino* *:inoremap*
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68 :ln[oremap] {lhs} {rhs} |mapmode-l| *:ln* *:lnoremap*
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69 :cno[remap] {lhs} {rhs} |mapmode-c| *:cno* *:cnoremap*
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70 Map the key sequence {lhs} to {rhs} for the modes
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71 where the map command applies. Disallow mapping of
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72 {rhs}, to avoid nested and recursive mappings. Often
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73 used to redefine a command. {not in Vi}
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74
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75
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76 :unm[ap] {lhs} |mapmode-nvo| *:unm* *:unmap*
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77 :nun[map] {lhs} |mapmode-n| *:nun* *:nunmap*
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78 :vu[nmap] {lhs} |mapmode-v| *:vu* *:vunmap*
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79 :ou[nmap] {lhs} |mapmode-o| *:ou* *:ounmap*
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80 :unm[ap]! {lhs} |mapmode-ic| *:unm!* *:unmap!*
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81 :iu[nmap] {lhs} |mapmode-i| *:iu* *:iunmap*
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82 :lu[nmap] {lhs} |mapmode-l| *:lu* *:lunmap*
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83 :cu[nmap] {lhs} |mapmode-c| *:cu* *:cunmap*
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84 Remove the mapping of {lhs} for the modes where the
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85 map command applies. The mapping may remain defined
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86 for other modes where it applies.
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87 Note: Trailing spaces are included in the {lhs}. This
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88 unmap does NOT work: >
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89 :map @@ foo
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90 :unmap @@ | print
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91
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92 :mapc[lear] |mapmode-nvo| *:mapc* *:mapclear*
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93 :nmapc[lear] |mapmode-n| *:nmapc* *:nmapclear*
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94 :vmapc[lear] |mapmode-v| *:vmapc* *:vmapclear*
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95 :omapc[lear] |mapmode-o| *:omapc* *:omapclear*
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96 :mapc[lear]! |mapmode-ic| *:mapc!* *:mapclear!*
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97 :imapc[lear] |mapmode-i| *:imapc* *:imapclear*
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98 :lmapc[lear] |mapmode-l| *:lmapc* *:lmapclear*
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99 :cmapc[lear] |mapmode-c| *:cmapc* *:cmapclear*
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100 Remove ALL mappings for the modes where the map
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101 command applies. {not in Vi}
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102 Warning: This also removes the default mappings.
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103
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104 :map |mapmode-nvo|
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105 :nm[ap] |mapmode-n|
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106 :vm[ap] |mapmode-v|
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107 :om[ap] |mapmode-o|
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108 :map! |mapmode-ic|
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109 :im[ap] |mapmode-i|
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110 :lm[ap] |mapmode-l|
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111 :cm[ap] |mapmode-c|
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112 List all key mappings for the modes where the map
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113 command applies. Note that ":map" and ":map!" are
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114 used most often, because they include the other modes.
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115
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116 :map {lhs} |mapmode-nvo| *:map_l*
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117 :nm[ap] {lhs} |mapmode-n| *:nmap_l*
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118 :vm[ap] {lhs} |mapmode-v| *:vmap_l*
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119 :om[ap] {lhs} |mapmode-o| *:omap_l*
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120 :map! {lhs} |mapmode-ic| *:map_l!*
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121 :im[ap] {lhs} |mapmode-i| *:imap_l*
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122 :lm[ap] {lhs} |mapmode-l| *:lmap_l*
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123 :cm[ap] {lhs} |mapmode-c| *:cmap_l*
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124 List the key mappings for the key sequences starting
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125 with {lhs} in the modes where the map command applies.
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126 {not in Vi}
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127
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128 These commands are used to map a key or key sequence to a string of
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129 characters. You can use this to put command sequences under function keys,
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130 translate one key into another, etc. See |:mkexrc| for how to save and
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131 restore the current mappings.
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132
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133 *map-ambiguous*
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134 When two mappings start with the same sequence of characters, they are
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135 ambiguous. Example: >
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136 :imap aa foo
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137 :imap aaa bar
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138 When Vim has read "aa", it will need to get another character to be able to
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139 decide if "aa" or "aaa" should be mapped. This means that after typing "aa"
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140 that mapping won't get expanded yet, Vim is waiting for another character.
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141 If you type a space, then "foo" will get inserted, plus the space. If you
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142 type "a", then "bar" will get inserted.
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143 {Vi does not allow ambiguous mappings}
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144
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145
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146 1.2 SPECIAL ARGUMENTS *:map-arguments*
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147
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148 "<buffer>", "<silent>", "<script>", "<expr>" and "<unique>" can be used in any
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149 order. They must appear right after the command, before any other arguments.
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150
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151 *:map-local* *:map-<buffer>* *E224* *E225*
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152 If the first argument to one of these commands is "<buffer>" it will apply to
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153 mappings locally to the current buffer only. Example: >
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154 :map <buffer> ,w /[.,;]<CR>
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155 Then you can map ",w" to something else in another buffer: >
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156 :map <buffer> ,w /[#&!]<CR>
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157 The local buffer mappings are used before the global ones.
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158 The "<buffer>" argument can also be used to clear mappings: >
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159 :unmap <buffer> ,w
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160 :mapclear <buffer>
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161 Local mappings are also cleared when a buffer is deleted, but not when it is
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162 unloaded. Just like local option values.
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163
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164 *:map-<silent>* *:map-silent*
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165 To define a mapping which will not be echoed on the command line, add
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166 "<silent>" as the first argument. Example: >
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167 :map <silent> ,h /Header<CR>
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168 The search string will not be echoed when using this mapping. Messages from
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169 the executed command are still given though. To shut them up too, add a
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170 ":silent" in the executed command: >
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171 :map <silent> ,h :exe ":silent normal /Header\r"<CR>
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172 Prompts will still be given, e.g., for inputdialog().
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173 Using "<silent>" for an abbreviation is possible, but will cause redrawing of
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174 the command line to fail.
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175
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176 *:map-<script>* *:map-script*
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177 If the first argument to one of these commands is "<script>" and it is used to
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178 define a new mapping or abbreviation, the mapping will only remap characters
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179 in the {rhs} using mappings that were defined local to a script, starting with
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180 "<SID>". This can be used to avoid that mappings from outside a script
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181 interfere (e.g., when CTRL-V is remapped in mswin.vim), but do use other
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182 mappings defined in the script.
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183 Note: ":map <script>" and ":noremap <script>" do the same thing. The
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184 "<script>" overrules the command name. Using ":noremap <script>" is
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185 preferred, because it's clearer that remapping is (mostly) disabled.
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186
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187 *:map-<unique>* *E226* *E227*
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188 If the first argument to one of these commands is "<unique>" and it is used to
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189 define a new mapping or abbreviation, the command will fail if the mapping or
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190 abbreviation already exists. Example: >
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191 :map <unique> ,w /[#&!]<CR>
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192 When defining a local mapping, there will also be a check if a global map
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193 already exists which is equal.
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194 Example of what will fail: >
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195 :map ,w /[#&!]<CR>
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196 :map <buffer> <unique> ,w /[.,;]<CR>
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197 If you want to map a key and then have it do what it was originally mapped to,
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198 have a look at |maparg()|.
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199
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200 *:map-<expr>* *:map-expression*
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201 If the first argument to one of these commands is "<expr>" and it is used to
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202 define a new mapping or abbreviation, the argument is an expression. The
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203 expression is evaluated to obtain the {rhs} that is used. Example: >
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204 :inoremap <expr> . InsertDot()
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205 The result of the InsertDot() function will be inserted. It could check the
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206 text before the cursor and start omni completion when some condition is met.
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207
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208 Be very careful about side effects! The expression is evaluated while
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209 obtaining characters, if you change buffer text, move the cursor, edit another
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210 file, etc. you may very well make command disfunctional.
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211
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212 Here is an example that inserts a list number that increases: >
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213 let counter = 0
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214 inoremap <expr> <C-L> ListItem()
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215 inoremap <expr> <C-R> ListReset()
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216
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217 func ListItem()
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218 let g:counter += 1
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219 return g:counter . '. '
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220 endfunc
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221
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222 func ListReset()
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223 let g:counter = 0
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224 return ''
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225 endfunc
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226
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227 CTRL-L inserts the next number, CTRL-E resets the count. CTRL-E returns an
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228 empty string, so that nothing is inserted.
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229
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230
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231 1.3 MAPPING AND MODES *:map-modes*
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232
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233 There are five sets of mappings
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234 - For Normal mode: When typing commands.
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235 - For Visual mode: When typing commands while the Visual area is highlighted.
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236 - For Operator-pending mode: When an operator is pending (after "d", "y", "c",
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237 etc.). Example: ":omap { w" makes "y{" work like "yw" and "d{" like "dw".
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236
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238 - For Insert mode. These are also used in Replace mode.
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239 - For Command-line mode: When entering a ":" or "/" command.
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240
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241 There are no separate mappings for Select mode. The same as for Visual mode
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242 are used |Select-mode-mapping|.
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243
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244 Special case: While typing a count for a command in Normal mode, mapping zero
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245 is disabled. This makes it possible to map zero without making it impossible
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246 to type a count with a zero.
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247
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248 *map-overview* *map-modes*
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249 Overview of which map command works in which mode:
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250
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251 *mapmode-nvo* *mapmode-n* *mapmode-v* *mapmode-o*
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252 commands: modes: ~
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253 Normal Visual Operator-pending ~
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254 :map :noremap :unmap :mapclear yes yes yes
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255 :nmap :nnoremap :nunmap :nmapclear yes - -
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256 :vmap :vnoremap :vunmap :vmapclear - yes -
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257 :omap :onoremap :ounmap :omapclear - - yes
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258
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259 *mapmode-ic* *mapmode-i* *mapmode-c* *mapmode-l*
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260 Insert Command-line Lang-Arg ~
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261 :map! :noremap! :unmap! :mapclear! yes yes -
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262 :imap :inoremap :iunmap :imapclear yes - -
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263 :cmap :cnoremap :cunmap :cmapclear - yes -
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264 :lmap :lnoremap :lunmap :lmapclear yes* yes* yes*
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265
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266 The original Vi did not have separate mappings for
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267 Normal/Visual/Operator-pending mode and for Insert/Command-line mode.
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268 Therefore the ":map" and ":map!" commands enter and display mappings for
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269 several modes. In Vim you can use the ":nmap", ":vmap", ":omap", ":cmap" and
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270 ":imap" commands to enter mappings for each mode separately.
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271
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272 To enter a mapping for Normal and Visual mode, but not Operator-pending mode,
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273 first define it for all three modes, then unmap it for Operator-pending mode:
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274 :map xx something-difficult
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275 :ounmap xx
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276 Likewise for a mapping for Visual and Operator-pending mode or Normal and
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277 Operator-pending mode.
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278
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279 *language-mapping*
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280 ":lmap" defines a mapping that applies to:
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281 - Insert mode
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282 - Command-line mode
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283 - when entering a search pattern
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284 - the argument of the commands that accept a text character, such as "r" and
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285 "f"
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286 - for the input() line
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287 Generally: Whenever a character is to be typed that is part of the text in the
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288 buffer, not a Vim command character. "Lang-Arg" isn't really another mode,
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289 it's just used here for this situation.
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290 The simplest way to load a set of related language mappings is by using the
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291 'keymap' option. See |45.5|.
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292 In Insert mode and in Command-line mode the mappings can be disabled with
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293 the CTRL-^ command |i_CTRL-^| |c_CTRL-^|. When starting to enter a normal
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294 command line (not a search pattern) the mappings are disabled until a CTRL-^
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295 is typed. The state last used is remembered for Insert mode and Search
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296 patterns separately. The state for Insert mode is also used when typing a
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297 character as an argument to command like "f" or "t".
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298 Language mappings will never be applied to already mapped characters. They
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299 are only used for typed characters. This assumes that the language mapping
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300 was already done when typing the mapping.
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301
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302
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303 1.4 LISTING MAPPINGS *map-listing*
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304
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305 When listing mappings the characters in the first two columns are:
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306
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307 CHAR MODE ~
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308 <Space> Normal, Visual and Operator-pending
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309 n Normal
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310 v Visual
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311 o Operator-pending
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312 ! Insert and Command-line
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313 i Insert
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314 l ":lmap" mappings for Insert, Command-line and Lang-Arg
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315 c Command-line
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316
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317 Just before the {rhs} a special character can appear:
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318 * indicates that it is not remappable
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319 & indicates that only script-local mappings are remappable
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320 @ indicates a buffer-local mapping
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321
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322 Everything from the first non-blank after {lhs} up to the end of the line
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323 (or '|') is considered to be part of {rhs}. This allows the {rhs} to end
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324 with a space.
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325
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326 Note: When using mappings for Visual mode, you can use the "'<" mark, which
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327 is the start of the last selected Visual area in the current buffer |'<|.
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328
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481
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329 *:map-verbose*
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330 When 'verbose' is non-zero, listing a key map will also display where it was
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331 last defined. Example: >
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332
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333 :verbose map <C-W>*
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334 n <C-W>* * <C-W><C-S>*
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335 Last set from /home/abcd/.vimrc
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336
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483
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337 See |:verbose-cmd| for more information.
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481
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338
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592
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339
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340 1.5 MAPPING SPECIAL KEYS *:map-special-keys*
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341
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342 There are three ways to map a special key:
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343 1. The Vi-compatible method: Map the key code. Often this is a sequence that
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344 starts with <Esc>. To enter a mapping like this you type ":map " and then
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345 you have to type CTRL-V before hitting the function key. Note that when
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346 the key code for the key is in the termcap (the t_ options), it will
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347 automatically be translated into the internal code and become the second
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348 way of mapping (unless the 'k' flag is included in 'cpoptions').
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349 2. The second method is to use the internal code for the function key. To
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350 enter such a mapping type CTRL-K and then hit the function key, or use
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351 the form "#1", "#2", .. "#9", "#0", "<Up>", "<S-Down>", "<S-F7>", etc.
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352 (see table of keys |key-notation|, all keys from <Up> can be used). The
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353 first ten function keys can be defined in two ways: Just the number, like
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354 "#2", and with "<F>", like "<F2>". Both stand for function key 2. "#0"
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355 refers to function key 10, defined with option 't_f10', which may be
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356 function key zero on some keyboards. The <> form cannot be used when
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357 'cpoptions' includes the '<' flag.
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358 3. Use the termcap entry, with the form <t_xx>, where "xx" is the name of the
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359 termcap entry. Any string entry can be used. For example: >
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360 :map <t_F3> G
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361 < Maps function key 13 to "G". This does not work if 'cpoptions' includes
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362 the '<' flag.
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363
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364 The advantage of the second and third method is that the mapping will work on
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365 different terminals without modification (the function key will be
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366 translated into the same internal code or the actual key code, no matter what
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367 terminal you are using. The termcap must be correct for this to work, and you
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368 must use the same mappings).
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369
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370 DETAIL: Vim first checks if a sequence from the keyboard is mapped. If it
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371 isn't the terminal key codes are tried (see |terminal-options|). If a
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372 terminal code is found it is replaced with the internal code. Then the check
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373 for a mapping is done again (so you can map an internal code to something
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374 else). What is written into the script file depends on what is recognized.
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375 If the terminal key code was recognized as a mapping the key code itself is
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376 written to the script file. If it was recognized as a terminal code the
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377 internal code is written to the script file.
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378
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379
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380 1.6 SPECIAL CHARACTERS *:map-special-chars*
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7
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381 *map_backslash*
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382 Note that only CTRL-V is mentioned here as a special character for mappings
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383 and abbreviations. When 'cpoptions' does not contain 'B', a backslash can
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384 also be used like CTRL-V. The <> notation can be fully used then |<>|. But
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385 you cannot use "<C-V>" like CTRL-V to escape the special meaning of what
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386 follows.
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387
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388 To map a backslash, or use a backslash literally in the {rhs}, the special
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389 sequence "<Bslash>" can be used. This avoids the need to double backslashes
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390 when using nested mappings.
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391
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532
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392 *map_CTRL-C*
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393 Using CTRL-C in the {lhs} is possible, but it will only work when Vim is
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394 waiting for a key, not when Vim is busy with something. When Vim is busy
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395 CTRL-C interrupts/breaks the command.
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396 When using the GUI version on MS-Windows CTRL-C can be mapped to allow a Copy
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397 command to the clipboard. Use CTRL-Break to interrupt Vim.
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7
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398
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399 *map_space_in_lhs*
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400 To include a space in {lhs} precede it with a CTRL-V (type two CTRL-Vs for
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401 each space).
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402 *map_space_in_rhs*
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403 If you want a {rhs} that starts with a space, use "<Space>". To be fully Vi
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404 compatible (but unreadable) don't use the |<>| notation, precede {rhs} with a
|
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405 single CTRL-V (you have to type CTRL-V two times).
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406 *map_empty_rhs*
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407 You can create an empty {rhs} by typing nothing after a single CTRL-V (you
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408 have to type CTRL-V two times). Unfortunately, you cannot do this in a vimrc
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409 file.
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410 *<Nop>*
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411 A easier way to get a mapping that doesn't produce anything, is to use "<Nop>"
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412 for the {rhs}. This only works when the |<>| notation is enabled. For
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|
413 example, to make sure that function key 8 does nothing at all: >
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|
414 :map <F8> <Nop>
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415 :map! <F8> <Nop>
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416 <
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592
|
417 *map-multibyte*
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418 It is possible to map multibyte characters, but only the whole character. You
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|
419 cannot map the first byte only. This was done to prevent problems in this
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420 scenario: >
|
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421 :set encoding=latin1
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|
422 :imap <M-C> foo
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423 :set encoding=utf-8
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|
424 The mapping for <M-C> is defined with the latin1 encoding, resulting in a 0xc3
|
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|
425 byte. If you type the character á (0xea <M-a>) in UTF-8 encoding this is the
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|
426 two bytes 0xc3 0xa1. You don't want the 0xc3 byte to be mapped then,
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|
427 otherwise it would be impossible to type the á character.
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428
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|
7
|
429 *<Leader>* *mapleader*
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430 To define a mapping which uses the "mapleader" variable, the special string
|
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|
431 "<Leader>" can be used. It is replaced with the string value of "mapleader".
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432 If "mapleader" is not set or empty, a backslash is used instead. Example: >
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|
433 :map <Leader>A oanother line<Esc>
|
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434 Works like: >
|
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|
435 :map \A oanother line<Esc>
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|
436 But after: >
|
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|
437 :let mapleader = ","
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|
438 It works like: >
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|
439 :map ,A oanother line<Esc>
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440
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441 Note that the value of "mapleader" is used at the moment the mapping is
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442 defined. Changing "mapleader" after that has no effect for already defined
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443 mappings.
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444
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|
|
445 *<LocalLeader>* *maplocalleader*
|
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|
446 Just like <Leader>, except that it uses "maplocalleader" instead of
|
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|
447 "mapleader". <LocalLeader> is to be used for mappings which are local to a
|
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|
448 buffer. Example: >
|
|
|
449 :map <LocalLeader>q \DoItNow
|
|
|
450 <
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|
451 In a global plugin <Leader> should be used and in a filetype plugin
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|
452 <LocalLeader>. "mapleader" and "maplocalleader" can be equal. Although, if
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453 you make them different, there is a smaller chance of mappings from global
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454 plugins to clash with mappings for filetype plugins. For example, you could
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455 keep "mapleader" at the default backslash, and set "maplocalleader" to an
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456 underscore.
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457
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|
|
458 *map-<SID>*
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|
459 In a script the special key name "<SID>" can be used to define a mapping
|
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|
460 that's local to the script. See |<SID>| for details.
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|
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461
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|
|
462 *<Plug>*
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|
463 The special key name "<Plug>" can be used for an internal mapping, which is
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464 not to be matched with any key sequence. This is useful in plugins
|
|
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465 |using-<Plug>|.
|
|
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466
|
|
|
467 *<Char>* *<Char->*
|
|
|
468 To map a character by its decimal, octal or hexadecimal number the <Char>
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|
|
469 construct can be used:
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|
|
470 <Char-123> character 123
|
|
|
471 <Char-033> character 27
|
|
|
472 <Char-0x7f> character 127
|
|
|
473 This is useful to specify a (multi-byte) character in a 'keymap' file.
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474 Upper and lowercase differences are ignored.
|
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475
|
|
|
476 *map-comments*
|
|
|
477 It is not possible to put a comment after these commands, because the '"'
|
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478 character is considered to be part of the {lhs} or {rhs}.
|
|
|
479
|
|
|
480 *map_bar*
|
|
|
481 Since the '|' character is used to separate a map command from the next
|
|
|
482 command, you will have to do something special to include a '|' in {rhs}.
|
|
|
483 There are three methods:
|
|
|
484 use works when example ~
|
|
|
485 <Bar> '<' is not in 'cpoptions' :map _l :!ls <Bar> more^M
|
|
|
486 \| 'b' is not in 'cpoptions' :map _l :!ls \| more^M
|
|
|
487 ^V| always, in Vim and Vi :map _l :!ls ^V| more^M
|
|
|
488
|
|
|
489 (here ^V stands for CTRL-V; to get one CTRL-V you have to type it twice; you
|
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|
490 cannot use the <> notation "<C-V>" here).
|
|
|
491
|
|
|
492 All three work when you use the default setting for 'cpoptions'.
|
|
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493
|
|
|
494 When 'b' is present in 'cpoptions', "\|" will be recognized as a mapping
|
|
|
495 ending in a '\' and then another command. This is Vi compatible, but
|
|
|
496 illogical when compared to other commands.
|
|
|
497
|
|
|
498 *map_return*
|
|
|
499 When you have a mapping that contains an Ex command, you need to put a line
|
|
|
500 terminator after it to have it executed. The use of <CR> is recommended for
|
|
|
501 this (see |<>|). Example: >
|
|
|
502 :map _ls :!ls -l %<CR>:echo "the end"<CR>
|
|
|
503
|
|
|
504 To avoid mapping of the characters you type in insert or Command-line mode,
|
|
|
505 type a CTRL-V first. The mapping in Insert mode is disabled if the 'paste'
|
|
|
506 option is on.
|
|
|
507
|
|
|
508 Note that when an error is encountered (that causes an error message or beep)
|
|
|
509 the rest of the mapping is not executed. This is Vi-compatible.
|
|
|
510
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|
|
511 Note that the second character (argument) of the commands @zZtTfF[]rm'`"v
|
|
|
512 and CTRL-X is not mapped. This was done to be able to use all the named
|
|
|
513 registers and marks, even when the command with the same name has been
|
|
|
514 mapped.
|
|
|
515
|
|
592
|
516
|
|
|
517 1.7 WHAT KEYS TO MAP *map-which-keys*
|
|
|
518
|
|
7
|
519 If you are going to map something, you will need to choose which key(s) to use
|
|
|
520 for the {lhs}. You will have to avoid keys that are used for Vim commands,
|
|
|
521 otherwise you would not be able to use those commands anymore. Here are a few
|
|
|
522 suggestions:
|
|
|
523 - Function keys <F2>, <F3>, etc.. Also the shifted function keys <S-F1>,
|
|
|
524 <S-F2>, etc. Note that <F1> is already used for the help command.
|
|
588
|
525 - Meta-keys (with the ALT key pressed). |:map-alt-keys|
|
|
7
|
526 - Use the '_' or ',' character and then any other character. The "_" and ","
|
|
|
527 commands do exist in Vim (see |_| and |,|), but you probably never use them.
|
|
|
528 - Use a key that is a synonym for another command. For example: CTRL-P and
|
|
|
529 CTRL-N. Use an extra character to allow more mappings.
|
|
|
530
|
|
|
531 See the file "index" for keys that are not used and thus can be mapped without
|
|
|
532 losing any builtin function. You can also use ":help {key}^D" to find out if
|
|
|
533 a key is used for some command. ({key} is the specific key you want to find
|
|
|
534 out about, ^D is CTRL-D).
|
|
|
535
|
|
592
|
536
|
|
|
537 1.8 EXAMPLES *map-examples*
|
|
|
538
|
|
7
|
539 A few examples (given as you type them, for "<CR>" you type four characters;
|
|
|
540 the '<' flag must not be present in 'cpoptions' for this to work). >
|
|
|
541
|
|
|
542 :map <F3> o#include
|
|
|
543 :map <M-g> /foo<CR>cwbar<Esc>
|
|
|
544 :map _x d/END/e<CR>
|
|
|
545 :map! qq quadrillion questions
|
|
|
546 <
|
|
592
|
547
|
|
|
548 1.9 USING MAPPINGS *map-typing*
|
|
|
549
|
|
7
|
550 Vim will compare what you type with the start of a mapped sequence. If there
|
|
|
551 is an incomplete match, it will get more characters until there either is a
|
|
|
552 complete match or until there is no match at all. Example: If you map! "qq",
|
|
|
553 the first 'q' will not appear on the screen until you type another
|
|
|
554 character. This is because Vim cannot know if the next character will be a
|
|
|
555 'q' or not. If the 'timeout' option is on (which is the default) Vim will
|
|
|
556 only wait for one second (or as long as specified with the 'timeoutlen'
|
|
|
557 option). After that it assumes that the 'q' is to be interpreted as such. If
|
|
|
558 you type slowly, or your system is slow, reset the 'timeout' option. Then you
|
|
|
559 might want to set the 'ttimeout' option.
|
|
|
560
|
|
|
561 *map-keys-fails*
|
|
588
|
562 There are situations where key codes might not be recognized:
|
|
7
|
563 - Vim can only read part of the key code. Mostly this is only the first
|
|
|
564 character. This happens on some Unix versions in an xterm.
|
|
|
565 - The key code is after character(s) that are mapped. E.g., "<F1><F1>" or
|
|
|
566 "g<F1>".
|
|
588
|
567
|
|
7
|
568 The result is that the key code is not recognized in this situation, and the
|
|
588
|
569 mapping fails. There are two actions needed to avoid this problem:
|
|
|
570
|
|
7
|
571 - Remove the 'K' flag from 'cpoptions'. This will make Vim wait for the rest
|
|
|
572 of the characters of the function key.
|
|
|
573 - When using <F1> to <F4> the actual key code generated may correspond to
|
|
|
574 <xF1> to <xF4>. There are mappings from <xF1> to <F1>, <xF2> to <F2>, etc.,
|
|
|
575 but these are not recognized after another half a mapping. Make sure the
|
|
|
576 key codes for <F1> to <F4> are correct: >
|
|
|
577 :set <F1>=<type CTRL-V><type F1>
|
|
|
578 < Type the <F1> as four characters. The part after the "=" must be done with
|
|
|
579 the actual keys, not the literal text.
|
|
|
580 Another solution is to use the actual key code in the mapping for the second
|
|
|
581 special key: >
|
|
|
582 :map <F1><Esc>OP :echo "yes"<CR>
|
|
|
583 Don't type a real <Esc>, Vim will recognize the key code and replace it with
|
|
|
584 <F1> anyway.
|
|
|
585
|
|
588
|
586 Another problem may be that when keeping ALT or Meta pressed the terminal
|
|
|
587 prepends ESC instead of setting the 8th bit. See |:map-alt-keys|.
|
|
|
588
|
|
7
|
589 *recursive_mapping*
|
|
|
590 If you include the {lhs} in the {rhs} you have a recursive mapping. When
|
|
|
591 {lhs} is typed, it will be replaced with {rhs}. When the {lhs} which is
|
|
|
592 included in {rhs} is encountered it will be replaced with {rhs}, and so on.
|
|
|
593 This makes it possible to repeat a command an infinite number of times. The
|
|
|
594 only problem is that the only way to stop this is by causing an error. The
|
|
|
595 macros to solve a maze uses this, look there for an example. There is one
|
|
|
596 exception: If the {rhs} starts with {lhs}, the first character is not mapped
|
|
|
597 again (this is Vi compatible).
|
|
|
598 For example: >
|
|
|
599 :map ab abcd
|
|
|
600 will execute the "a" command and insert "bcd" in the text. The "ab" in the
|
|
|
601 {rhs} will not be mapped again.
|
|
|
602
|
|
|
603 If you want to exchange the meaning of two keys you should use the :noremap
|
|
|
604 command. For example: >
|
|
|
605 :noremap k j
|
|
|
606 :noremap j k
|
|
|
607 This will exchange the cursor up and down commands.
|
|
|
608
|
|
|
609 With the normal :map command, when the 'remap' option is on, mapping takes
|
|
|
610 place until the text is found not to be a part of a {lhs}. For example, if
|
|
|
611 you use: >
|
|
|
612 :map x y
|
|
|
613 :map y x
|
|
|
614 Vim will replace x with y, and then y with x, etc. When this has happened
|
|
|
615 'maxmapdepth' times (default 1000), Vim will give the error message
|
|
|
616 "recursive mapping".
|
|
|
617
|
|
|
618 *:map-undo*
|
|
|
619 If you include an undo command inside a mapped sequence, this will bring the
|
|
|
620 text back in the state before executing the macro. This is compatible with
|
|
|
621 the original Vi, as long as there is only one undo command in the mapped
|
|
|
622 sequence (having two undo commands in a mapped sequence did not make sense
|
|
|
623 in the original Vi, you would get back the text before the first undo).
|
|
|
624
|
|
|
625
|
|
592
|
626 1.10 MAPPING ALT-KEYS *:map-alt-keys*
|
|
588
|
627
|
|
|
628 In the GUI Vim handles the Alt key itself, thus mapping keys with ALT should
|
|
|
629 always work. But in a terminal Vim gets a sequence of bytes and has to figure
|
|
|
630 out whether ALT was pressed or not.
|
|
|
631
|
|
|
632 By default Vim assumes that pressing the ALT key sets the 8th bit of a typed
|
|
605
|
633 character. Most decent terminals can work that way, such as xterm, aterm and
|
|
588
|
634 rxvt. If your <A-k> mappings don't work it might be that the terminal is
|
|
|
635 prefixing the character with an ESC character. But you can just as well type
|
|
|
636 ESC before a character, thus Vim doesn't know what happened (except for
|
|
|
637 checking the delay between characters, which is not reliable).
|
|
|
638
|
|
|
639 As of this writing, some mainstream terminals like gnome-terminal and konsole
|
|
|
640 use the ESC prefix. There doesn't appear a way to have them use the 8th bit
|
|
605
|
641 instead. Xterm should work well by default. Aterm and rxvt should work well
|
|
|
642 when started with the "--meta8" argument. You can also tweak resources like
|
|
|
643 "metaSendsEscape", "eightBitInput" and "eightBitOutput".
|
|
588
|
644
|
|
|
645 On the Linux console, this behavior can be toggled with the "setmetamode"
|
|
|
646 command. Bear in mind that not using an ESC prefix could get you in trouble
|
|
|
647 with other programs. You should make sure that bash has the "convert-meta"
|
|
|
648 option set to "on" in order for your Meta keybindings to still work on it
|
|
|
649 (it's the default readline behavior, unless changed by specific system
|
|
|
650 configuration). For that, you can add the line: >
|
|
|
651
|
|
|
652 set convert-meta on
|
|
|
653
|
|
|
654 to your ~/.inputrc file. If you're creating the file, you might want to use: >
|
|
|
655
|
|
|
656 $include /etc/inputrc
|
|
|
657
|
|
|
658 as the first line, if that file exists on your system, to keep global options.
|
|
|
659 This may cause a problem for entering special characters, such as the umlaut.
|
|
|
660 Then you should use CTRL-V before that character.
|
|
|
661
|
|
|
662 Bear in mind that convert-meta has been reported to have troubles when used in
|
|
|
663 UTF-8 locales. On terminals like xterm, the "metaSendsEscape" resource can be
|
|
|
664 toggled on the fly through the "Main Options" menu, by pressing Ctrl-LeftClick
|
|
|
665 on the terminal; that's a good last resource in case you want to send ESC when
|
|
|
666 using other applications but not when inside VIM.
|
|
|
667
|
|
592
|
668
|
|
|
669 1.11 MAPPING AN OPERATOR *:map-operator*
|
|
|
670
|
|
|
671 An operator is used before a {motion} command. To define your own operator
|
|
|
672 you must create mapping that first sets the 'operatorfunc' option and then
|
|
|
673 invoke the |g@| operator. After the user types the {motion} command the
|
|
|
674 specified function will be called.
|
|
|
675
|
|
626
|
676 *g@* *E774* *E775*
|
|
592
|
677 g@{motion} Call the function set by the 'operatorfunc' option.
|
|
|
678 The '[ mark is positioned at the start of the text
|
|
|
679 moved over by {motion}, the '] mark on the last
|
|
|
680 character of the text.
|
|
|
681 The function is called with one String argument:
|
|
|
682 "line" {motion} was |linewise|
|
|
|
683 "char" {motion} was |characterwise|
|
|
|
684 "block" {motion} was |blockwise-visual||
|
|
|
685 Although "block" would rarely appear, since it can
|
|
|
686 only result from Visual mode where "g@" is not useful.
|
|
|
687 {not available when compiled without the +eval
|
|
|
688 feature}
|
|
|
689
|
|
|
690 Here is an example that counts the number of spaces with <F4>: >
|
|
|
691
|
|
|
692 nmap <silent> <F4> :set opfunc=CountSpaces<CR>g@
|
|
|
693 vmap <silent> <F4> :<C-U>call CountSpaces(visualmode(), 1)<CR>
|
|
|
694
|
|
|
695 function! CountSpaces(type, ...)
|
|
|
696 let sel_save = &selection
|
|
|
697 let &selection = "inclusive"
|
|
|
698 let reg_save = @@
|
|
|
699
|
|
|
700 if a:0 " Invoked from Visual mode, use '< and '> marks.
|
|
|
701 silent exe "normal! `<" . a:type . "`>y"
|
|
|
702 elseif a:type == 'line'
|
|
|
703 silent exe "normal! '[V']y"
|
|
|
704 elseif a:type == 'block'
|
|
|
705 silent exe "normal! `[\<C-V>`]y"
|
|
|
706 else
|
|
|
707 silent exe "normal! `[v`]y"
|
|
|
708 endif
|
|
|
709
|
|
|
710 echomsg strlen(substitute(@@, '[^ ]', '', 'g'))
|
|
|
711
|
|
|
712 let &selection = sel_save
|
|
|
713 let @@ = reg_save
|
|
|
714 endfunction
|
|
|
715
|
|
|
716 Note that the 'selection' option is temporarily set to "inclusive" to be able
|
|
|
717 to yank exactly the right text by using Visual mode from the '[ to the ']
|
|
|
718 mark.
|
|
|
719
|
|
|
720 Also note that there is a separate mapping for Visual mode. It removes the
|
|
|
721 "'<,'>" range that ":" inserts in Visual mode and invokes the function with
|
|
|
722 visualmode() and an extra argument.
|
|
|
723
|
|
7
|
724 ==============================================================================
|
|
|
725 2. Abbreviations *abbreviations* *Abbreviations*
|
|
|
726
|
|
|
727 Abbreviations are used in Insert mode, Replace mode and Command-line mode.
|
|
|
728 If you enter a word that is an abbreviation, it is replaced with the word it
|
|
|
729 stands for. This can be used to save typing for often used long words. And
|
|
|
730 you can use it to automatically correct obvious spelling errors.
|
|
|
731 Examples:
|
|
|
732
|
|
|
733 :iab ms MicroSoft
|
|
|
734 :iab tihs this
|
|
|
735
|
|
|
736 There are three types of abbreviations:
|
|
|
737
|
|
|
738 full-id The "full-id" type consists entirely of keyword characters (letters
|
|
|
739 and characters from 'iskeyword' option). This is the most common
|
|
|
740 abbreviation.
|
|
|
741
|
|
|
742 Examples: "foo", "g3", "-1"
|
|
|
743
|
|
|
744 end-id The "end-id" type ends in a keyword character, but all the other
|
|
|
745 characters are not keyword characters.
|
|
|
746
|
|
|
747 Examples: "#i", "..f", "$/7"
|
|
|
748
|
|
|
749 non-id The "non-id" type ends in a non-keyword character, the other
|
|
|
750 characters may be of any type, excluding space and Tab. {this type
|
|
|
751 is not supported by Vi}
|
|
|
752
|
|
|
753 Examples: "def#", "4/7$"
|
|
|
754
|
|
|
755 Examples of strings that cannot be abbreviations: "a.b", "#def", "a b", "_$r"
|
|
|
756
|
|
|
757 An abbreviation is only recognized when you type a non-keyword character.
|
|
|
758 This can also be the <Esc> that ends insert mode or the <CR> that ends a
|
|
|
759 command. The non-keyword character which ends the abbreviation is inserted
|
|
|
760 after the expanded abbreviation. An exception to this is the character <C-]>,
|
|
|
761 which is used to expand an abbreviation without inserting any extra
|
|
|
762 characters.
|
|
|
763
|
|
|
764 Example: >
|
|
|
765 :ab hh hello
|
|
|
766 < "hh<Space>" is expanded to "hello<Space>"
|
|
|
767 "hh<C-]>" is expanded to "hello"
|
|
|
768
|
|
|
769 The characters before the cursor must match the abbreviation. Each type has
|
|
|
770 an additional rule:
|
|
|
771
|
|
|
772 full-id In front of the match is a non-keyword character, or this is where
|
|
|
773 the line or insertion starts. Exception: When the abbreviation is
|
|
|
774 only one character, it is not recognized if there is a non-keyword
|
|
|
775 character in front of it, other than a space or a <Tab>.
|
|
|
776
|
|
|
777 end-id In front of the match is a keyword character, or a space or a <Tab>,
|
|
|
778 or this is where the line or insertion starts.
|
|
|
779
|
|
|
780 non-id In front of the match is a space, <Tab> or the start of the line or
|
|
|
781 the insertion.
|
|
|
782
|
|
|
783 Examples: ({CURSOR} is where you type a non-keyword character) >
|
|
|
784 :ab foo four old otters
|
|
|
785 < " foo{CURSOR}" is expanded to " four old otters"
|
|
|
786 " foobar{CURSOR}" is not expanded
|
|
|
787 "barfoo{CURSOR}" is not expanded
|
|
|
788 >
|
|
|
789 :ab #i #include
|
|
|
790 < "#i{CURSOR}" is expanded to "#include"
|
|
|
791 ">#i{CURSOR}" is not expanded
|
|
|
792 >
|
|
42
|
793 :ab ;; <endofline>
|
|
7
|
794 < "test;;" is not expanded
|
|
|
795 "test ;;" is expanded to "test <endofline>"
|
|
|
796
|
|
|
797 To avoid the abbreviation in insert mode: Type part of the abbreviation, exit
|
|
|
798 insert mode with <Esc>, re-enter insert mode with "a" and type the rest. Or
|
|
|
799 type CTRL-V before the character after the abbreviation.
|
|
|
800 To avoid the abbreviation in Command-line mode: Type CTRL-V twice somewhere in
|
|
|
801 the abbreviation to avoid it to be replaced. A CTRL-V in front of a normal
|
|
|
802 character is mostly ignored otherwise.
|
|
|
803
|
|
|
804 It is possible to move the cursor after an abbreviation: >
|
|
|
805 :iab if if ()<Left>
|
|
|
806 This does not work if 'cpoptions' includes the '<' flag. |<>|
|
|
|
807
|
|
|
808 You can even do more complicated things. For example, to consume the space
|
|
|
809 typed after an abbreviation: >
|
|
|
810 func Eatchar(pat)
|
|
685
|
811 let c = nr2char(getchar(0))
|
|
7
|
812 return (c =~ a:pat) ? '' : c
|
|
|
813 endfunc
|
|
|
814 iabbr <silent> if if ()<Left><C-R>=Eatchar('\s')<CR>
|
|
|
815
|
|
|
816 There are no default abbreviations.
|
|
|
817
|
|
|
818 Abbreviations are never recursive. You can use ":ab f f-o-o" without any
|
|
|
819 problem. But abbreviations can be mapped. {some versions of Vi support
|
|
|
820 recursive abbreviations, for no apparent reason}
|
|
|
821
|
|
|
822 Abbreviations are disabled if the 'paste' option is on.
|
|
|
823
|
|
|
824 *:abbreviate-local* *:abbreviate-<buffer>*
|
|
|
825 Just like mappings, abbreviations can be local to a buffer. This is mostly
|
|
|
826 used in a |filetype-plugin| file. Example for a C plugin file: >
|
|
|
827 :abb <buffer> FF for (i = 0; i < ; ++i)
|
|
|
828 <
|
|
|
829 *:ab* *:abbreviate*
|
|
|
830 :ab[breviate] list all abbreviations. The character in the first
|
|
|
831 column indicates the mode where the abbreviation is
|
|
|
832 used: 'i' for insert mode, 'c' for Command-line
|
|
|
833 mode, '!' for both. These are the same as for
|
|
|
834 mappings, see |map-listing|.
|
|
|
835
|
|
502
|
836 *:abbreviate-verbose*
|
|
|
837 When 'verbose' is non-zero, listing an abbreviation will also display where it
|
|
|
838 was last defined. Example: >
|
|
|
839
|
|
|
840 :verbose abbreviate
|
|
|
841 ! teh the
|
|
|
842 Last set from /home/abcd/vim/abbr.vim
|
|
|
843
|
|
|
844 See |:verbose-cmd| for more information.
|
|
|
845
|
|
7
|
846 :ab[breviate] {lhs} list the abbreviations that start with {lhs}
|
|
|
847 You may need to insert a CTRL-V (type it twice) to
|
|
|
848 avoid that a typed {lhs} is expanded, since
|
|
|
849 command-line abbreviations apply here.
|
|
|
850
|
|
|
851 :ab[breviate] {lhs} {rhs}
|
|
|
852 add abbreviation for {lhs} to {rhs}. If {lhs} already
|
|
|
853 existed it is replaced with the new {rhs}. {rhs} may
|
|
|
854 contain spaces.
|
|
|
855
|
|
|
856 *:una* *:unabbreviate*
|
|
|
857 :una[bbreviate] {lhs} Remove abbreviation for {lhs} from the list. If none
|
|
|
858 is found, remove abbreviations in which {lhs} matches
|
|
|
859 with the {rhs}. This is done so that you can even
|
|
|
860 remove abbreviations after expansion. To avoid
|
|
|
861 expansion insert a CTRL-V (type it twice).
|
|
|
862
|
|
|
863 *:norea* *:noreabbrev*
|
|
|
864 :norea[bbrev] [lhs] [rhs]
|
|
|
865 same as ":ab", but no remapping for this {rhs} {not
|
|
|
866 in Vi}
|
|
|
867
|
|
|
868 *:ca* *:cabbrev*
|
|
|
869 :ca[bbrev] [lhs] [rhs] same as ":ab", but for Command-line mode only. {not
|
|
|
870 in Vi}
|
|
|
871
|
|
|
872 *:cuna* *:cunabbrev*
|
|
|
873 :cuna[bbrev] {lhs} same as ":una", but for Command-line mode only. {not
|
|
|
874 in Vi}
|
|
|
875
|
|
|
876 *:cnorea* *:cnoreabbrev*
|
|
|
877 :cnorea[bbrev] [lhs] [rhs]
|
|
|
878 same as ":ab", but for Command-line mode only and no
|
|
|
879 remapping for this {rhs} {not in Vi}
|
|
|
880
|
|
|
881 *:ia* *:iabbrev*
|
|
|
882 :ia[bbrev] [lhs] [rhs] same as ":ab", but for Insert mode only. {not in Vi}
|
|
|
883
|
|
|
884 *:iuna* *:iunabbrev*
|
|
|
885 :iuna[bbrev] {lhs} same as ":una", but for insert mode only. {not in
|
|
|
886 Vi}
|
|
|
887
|
|
|
888 *:inorea* *:inoreabbrev*
|
|
|
889 :inorea[bbrev] [lhs] [rhs]
|
|
|
890 same as ":ab", but for Insert mode only and no
|
|
|
891 remapping for this {rhs} {not in Vi}
|
|
|
892
|
|
|
893 *:abc* *:abclear*
|
|
|
894 :abc[lear] Remove all abbreviations. {not in Vi}
|
|
|
895
|
|
|
896 *:iabc* *:iabclear*
|
|
|
897 :iabc[lear] Remove all abbreviations for Insert mode. {not in Vi}
|
|
|
898
|
|
|
899 *:cabc* *:cabclear*
|
|
|
900 :cabc[lear] Remove all abbreviations for Command-line mode. {not
|
|
|
901 in Vi}
|
|
|
902
|
|
|
903 *using_CTRL-V*
|
|
|
904 It is possible to use special characters in the rhs of an abbreviation.
|
|
|
905 CTRL-V has to be used to avoid the special meaning of most non printable
|
|
|
906 characters. How many CTRL-Vs need to be typed depends on how you enter the
|
|
|
907 abbreviation. This also applies to mappings. Let's use an example here.
|
|
|
908
|
|
|
909 Suppose you want to abbreviate "esc" to enter an <Esc> character. When you
|
|
|
910 type the ":ab" command in Vim, you have to enter this: (here ^V is a CTRL-V
|
|
|
911 and ^[ is <Esc>)
|
|
|
912
|
|
|
913 You type: ab esc ^V^V^V^V^V^[
|
|
|
914
|
|
|
915 All keyboard input is subjected to ^V quote interpretation, so
|
|
|
916 the first, third, and fifth ^V characters simply allow the second,
|
|
|
917 and fourth ^Vs, and the ^[, to be entered into the command-line.
|
|
|
918
|
|
|
919 You see: ab esc ^V^V^[
|
|
|
920
|
|
|
921 The command-line contains two actual ^Vs before the ^[. This is
|
|
|
922 how it should appear in your .exrc file, if you choose to go that
|
|
|
923 route. The first ^V is there to quote the second ^V; the :ab
|
|
|
924 command uses ^V as its own quote character, so you can include quoted
|
|
42
|
925 whitespace or the | character in the abbreviation. The :ab command
|
|
7
|
926 doesn't do anything special with the ^[ character, so it doesn't need
|
|
|
927 to be quoted. (Although quoting isn't harmful; that's why typing 7
|
|
|
928 [but not 8!] ^Vs works.)
|
|
|
929
|
|
|
930 Stored as: esc ^V^[
|
|
|
931
|
|
|
932 After parsing, the abbreviation's short form ("esc") and long form
|
|
|
933 (the two characters "^V^[") are stored in the abbreviation table.
|
|
|
934 If you give the :ab command with no arguments, this is how the
|
|
|
935 abbreviation will be displayed.
|
|
|
936
|
|
|
937 Later, when the abbreviation is expanded because the user typed in
|
|
|
938 the word "esc", the long form is subjected to the same type of
|
|
|
939 ^V interpretation as keyboard input. So the ^V protects the ^[
|
|
42
|
940 character from being interpreted as the "exit Insert mode" character.
|
|
7
|
941 Instead, the ^[ is inserted into the text.
|
|
|
942
|
|
|
943 Expands to: ^[
|
|
|
944
|
|
|
945 [example given by Steve Kirkendall]
|
|
|
946
|
|
|
947 ==============================================================================
|
|
|
948 3. Local mappings and functions *script-local*
|
|
|
949
|
|
|
950 When using several Vim script files, there is the danger that mappings and
|
|
|
951 functions used in one script use the same name as in other scripts. To avoid
|
|
|
952 this, they can be made local to the script.
|
|
|
953
|
|
|
954 *<SID>* *<SNR>* *E81*
|
|
|
955 The string "<SID>" can be used in a mapping or menu. This requires that the
|
|
|
956 '<' flag is not present in 'cpoptions'.
|
|
|
957 When executing the map command, Vim will replace "<SID>" with the special
|
|
|
958 key code <SNR>, followed by a number that's unique for the script, and an
|
|
|
959 underscore. Example: >
|
|
|
960 :map <SID>Add
|
|
|
961 could define a mapping "<SNR>23_Add".
|
|
|
962
|
|
|
963 When defining a function in a script, "s:" can be prepended to the name to
|
|
|
964 make it local to the script. But when a mapping is executed from outside of
|
|
|
965 the script, it doesn't know in which script the function was defined. To
|
|
|
966 avoid this problem, use "<SID>" instead of "s:". The same translation is done
|
|
|
967 as for mappings. This makes it possible to define a call to the function in
|
|
42
|
968 a mapping.
|
|
7
|
969
|
|
|
970 When a local function is executed, it runs in the context of the script it was
|
|
|
971 defined in. This means that new functions and mappings it defines can also
|
|
|
972 use "s:" or "<SID>" and it will use the same unique number as when the
|
|
|
973 function itself was defined. Also, the "s:var" local script variables can be
|
|
|
974 used.
|
|
|
975
|
|
|
976 When executing an autocommand or a user command, it will run in the context of
|
|
|
977 the script it was defined in. This makes it possible that the command calls a
|
|
|
978 local function or uses a local mapping.
|
|
|
979
|
|
|
980 Otherwise, using "<SID>" outside of a script context is an error.
|
|
|
981
|
|
|
982 If you need to get the script number to use in a complicated script, you can
|
|
625
|
983 use this function: >
|
|
|
984 function s:SID()
|
|
|
985 return matchstr(expand('<sfile>'), '<SNR>\zs\d\+\ze_SID$')
|
|
|
986 endfun
|
|
7
|
987
|
|
|
988 The "<SNR>" will be shown when listing functions and mappings. This is useful
|
|
|
989 to find out what they are defined to.
|
|
|
990
|
|
|
991 The |:scriptnames| command can be used to see which scripts have been sourced
|
|
|
992 and what their <SNR> number is.
|
|
|
993
|
|
|
994 This is all {not in Vi} and {not available when compiled without the +eval
|
|
|
995 feature}.
|
|
|
996
|
|
|
997 ==============================================================================
|
|
|
998 4. User-defined commands *user-commands*
|
|
|
999
|
|
236
|
1000 It is possible to define your own Ex commands. A user-defined command can act
|
|
7
|
1001 just like a built-in command (it can have a range or arguments, arguments can
|
|
|
1002 be completed as filenames or buffer names, etc), except that when the command
|
|
|
1003 is executed, it is transformed into a normal ex command and then executed.
|
|
|
1004
|
|
|
1005 For starters: See section |40.2| in the user manual.
|
|
|
1006
|
|
|
1007 *E183* *user-cmd-ambiguous*
|
|
|
1008 All user defined commands must start with an uppercase letter, to avoid
|
|
236
|
1009 confusion with builtin commands. (There are a few builtin commands, notably
|
|
7
|
1010 :Next, :Print and :X, which do start with an uppercase letter. The builtin
|
|
|
1011 will always take precedence in these cases). The other characters of the user
|
|
|
1012 command can be uppercase letters, lowercase letters or digits. When using
|
|
|
1013 digits, note that other commands that take a numeric argument may become
|
|
|
1014 ambiguous. For example, the command ":Cc2" could be the user command ":Cc2"
|
|
|
1015 without an argument, or the command ":Cc" with argument "2". It is advised to
|
|
|
1016 put a space between the command name and the argument to avoid these problems.
|
|
|
1017
|
|
236
|
1018 When using a user-defined command, the command can be abbreviated. However, if
|
|
|
1019 an abbreviation is not unique, an error will be issued. Furthermore, a
|
|
7
|
1020 built-in command will always take precedence.
|
|
|
1021
|
|
|
1022 Example: >
|
|
|
1023 :command Rename ...
|
|
|
1024 :command Renumber ...
|
|
|
1025 :Rena " Means "Rename"
|
|
|
1026 :Renu " Means "Renumber"
|
|
|
1027 :Ren " Error - ambiguous
|
|
|
1028 :command Paste ...
|
|
|
1029 :P " The built-in :Print
|
|
|
1030
|
|
|
1031 It is recommended that full names for user-defined commands are used in
|
|
|
1032 scripts.
|
|
|
1033
|
|
|
1034 :com[mand] *:com* *:command*
|
|
236
|
1035 List all user-defined commands. When listing commands,
|
|
7
|
1036 the characters in the first two columns are
|
|
|
1037 ! Command has the -bang attribute
|
|
|
1038 " Command has the -register attribute
|
|
|
1039 b Command is local to current buffer
|
|
|
1040 (see below for details on attributes)
|
|
|
1041
|
|
|
1042 :com[mand] {cmd} List the user-defined commands that start with {cmd}
|
|
|
1043
|
|
482
|
1044 *:command-verbose*
|
|
|
1045 When 'verbose' is non-zero, listing a command will also display where it was
|
|
|
1046 last defined. Example: >
|
|
|
1047
|
|
|
1048 :verbose command TOhtml
|
|
|
1049 Name Args Range Complete Definition
|
|
|
1050 TOhtml 0 % :call Convert2HTML(<line1>, <line2>)
|
|
|
1051 Last set from /usr/share/vim/vim-7.0/plugin/tohtml.vim
|
|
|
1052 <
|
|
483
|
1053 See |:verbose-cmd| for more information.
|
|
482
|
1054
|
|
7
|
1055 *E174* *E182*
|
|
|
1056 :com[mand][!] [{attr}...] {cmd} {rep}
|
|
|
1057 Define a user command. The name of the command is
|
|
236
|
1058 {cmd} and its replacement text is {rep}. The command's
|
|
|
1059 attributes (see below) are {attr}. If the command
|
|
7
|
1060 already exists, an error is reported, unless a ! is
|
|
|
1061 specified, in which case the command is redefined.
|
|
|
1062
|
|
|
1063 :delc[ommand] {cmd} *:delc* *:delcommand* *E184*
|
|
|
1064 Delete the user-defined command {cmd}.
|
|
|
1065
|
|
|
1066 :comc[lear] *:comc* *:comclear*
|
|
|
1067 Delete all user-defined commands.
|
|
|
1068
|
|
|
1069 Command attributes
|
|
|
1070
|
|
236
|
1071 User-defined commands are treated by Vim just like any other ex commands. They
|
|
|
1072 can have arguments, or have a range specified. Arguments are subject to
|
|
|
1073 completion as filenames, buffers, etc. Exactly how this works depends upon the
|
|
7
|
1074 command's attributes, which are specified when the command is defined.
|
|
|
1075
|
|
|
1076 There are a number of attributes, split into four categories: argument
|
|
236
|
1077 handling, completion behavior, range handling, and special cases. The
|
|
7
|
1078 attributes are described below, by category.
|
|
|
1079
|
|
|
1080 Argument handling *E175* *E176*
|
|
|
1081
|
|
|
1082 By default, a user defined command will take no arguments (and an error is
|
|
236
|
1083 reported if any are supplied). However, it is possible to specify that the
|
|
|
1084 command can take arguments, using the -nargs attribute. Valid cases are:
|
|
7
|
1085
|
|
|
1086 -nargs=0 No arguments are allowed (the default)
|
|
|
1087 -nargs=1 Exactly one argument is required
|
|
|
1088 -nargs=* Any number of arguments are allowed (0, 1, or many)
|
|
|
1089 -nargs=? 0 or 1 arguments are allowed
|
|
|
1090 -nargs=+ Arguments must be supplied, but any number are allowed
|
|
|
1091
|
|
|
1092 Arguments are considered to be separated by (unescaped) spaces or Tabs in this
|
|
|
1093 context.
|
|
|
1094
|
|
|
1095 Note that arguments are used as text, not as expressions. Specifically,
|
|
|
1096 "s:var" will use the script-local variable in the script where the command was
|
|
|
1097 defined, not where it is invoked! Example:
|
|
|
1098 script1.vim: >
|
|
|
1099 :let s:error = "None"
|
|
|
1100 :command -nargs=1 Error echoerr <args>
|
|
|
1101 < script2.vim: >
|
|
|
1102 :source script1.vim
|
|
|
1103 :let s:error = "Wrong!"
|
|
|
1104 :Error s:error
|
|
|
1105 Executing script2.vim will result in "None" to be echoed. Not what you
|
|
|
1106 intended! Calling a function may be an alternative.
|
|
|
1107
|
|
|
1108 Completion behavior *:command-completion*
|
|
|
1109 *E179* *E180* *E181*
|
|
|
1110 By default, the arguments of user defined commands do not undergo completion.
|
|
|
1111 However, by specifying one or the other of the following attributes, argument
|
|
|
1112 completion can be enabled:
|
|
|
1113
|
|
|
1114 -complete=augroup autocmd groups
|
|
|
1115 -complete=buffer buffer names
|
|
|
1116 -complete=command Ex command (and arguments)
|
|
|
1117 -complete=dir directory names
|
|
|
1118 -complete=environment environment variable names
|
|
|
1119 -complete=event autocommand events
|
|
|
1120 -complete=expression Vim expression
|
|
|
1121 -complete=file file and directory names
|
|
714
|
1122 -complete=shellcmd Shell command
|
|
7
|
1123 -complete=function function name
|
|
|
1124 -complete=help help subjects
|
|
|
1125 -complete=highlight highlight groups
|
|
|
1126 -complete=mapping mapping name
|
|
|
1127 -complete=menu menus
|
|
|
1128 -complete=option options
|
|
|
1129 -complete=tag tags
|
|
|
1130 -complete=tag_listfiles tags, file names are shown when CTRL-D is hit
|
|
|
1131 -complete=var user variables
|
|
|
1132 -complete=custom,{func} custom completion, defined via {func}
|
|
406
|
1133 -complete=customlist,{func} custom completion, defined via {func}
|
|
7
|
1134
|
|
557
|
1135
|
|
|
1136 Custom completion *:command-completion-custom*
|
|
|
1137 *:command-completion-customlist*
|
|
|
1138 *E467* *E468*
|
|
7
|
1139 It is possible to define customized completion schemes via the "custom,{func}"
|
|
406
|
1140 or the "customlist,{func}" completion argument. The {func} part should be a
|
|
|
1141 function with the following prototype >
|
|
7
|
1142
|
|
|
1143 :function {func}(ArgLead, CmdLine, CursorPos)
|
|
|
1144
|
|
406
|
1145 The function need not use all these arguments. The function should provide the
|
|
|
1146 completion candidates as the return value.
|
|
|
1147
|
|
|
1148 For the "custom" argument, the function should return the completion
|
|
|
1149 candidates one per line in a newline separated string.
|
|
|
1150
|
|
|
1151 For the "customlist" argument, the function should return the completion
|
|
557
|
1152 candidates as a Vim List. Non-string items in the list are ignored.
|
|
406
|
1153
|
|
|
1154 The function arguments are:
|
|
7
|
1155 ArgLead the leading portion of the argument currently being
|
|
|
1156 completed on
|
|
|
1157 CmdLine the entire command line
|
|
557
|
1158 CursorPos the cursor position in it (byte index)
|
|
406
|
1159 The function may use these for determining context. For the "custom"
|
|
|
1160 argument, it is not necessary to filter candidates against the (implicit
|
|
|
1161 pattern in) ArgLead. Vim will do filter the candidates with its regexp engine
|
|
|
1162 after function return, and this is probably more efficient in most cases. For
|
|
|
1163 the "customlist" argument, Vim will not filter the returned completion
|
|
|
1164 candidates and the user supplied function should filter the candidates.
|
|
7
|
1165
|
|
|
1166 The following example lists user names to a Finger command >
|
|
|
1167 :com -complete=custom,ListUsers -nargs=1 Finger !finger <args>
|
|
|
1168 :fun ListUsers(A,L,P)
|
|
|
1169 : return system("cut -d: -f1 /etc/passwd")
|
|
|
1170 :endfun
|
|
|
1171
|
|
406
|
1172 The following example completes filenames from the directories specified in
|
|
|
1173 the 'path' option: >
|
|
|
1174 :com -nargs=1 -bang -complete=customlist,EditFileComplete
|
|
|
1175 \ EditFile edit<bang> <args>
|
|
|
1176 :fun EditFileComplete(A,L,P)
|
|
434
|
1177 : return split(globpath(&path, a:ArgLead), "\n")
|
|
406
|
1178 :endfun
|
|
|
1179 <
|
|
557
|
1180
|
|
7
|
1181 Range handling *E177* *E178*
|
|
|
1182
|
|
236
|
1183 By default, user-defined commands do not accept a line number range. However,
|
|
7
|
1184 it is possible to specify that the command does take a range (the -range
|
|
|
1185 attribute), or that it takes an arbitrary count value, either in the line
|
|
|
1186 number position (-range=N, like the |:split| command) or as a "count"
|
|
236
|
1187 argument (-count=N, like the |:Next| command). Possible attributes are:
|
|
7
|
1188
|
|
|
1189 -range Range allowed, default is current line
|
|
|
1190 -range=% Range allowed, default is whole file (1,$)
|
|
|
1191 -range=N A count (default N) which is specified in the line
|
|
|
1192 number position (like |:split|)
|
|
|
1193 -count=N A count (default N) which is specified either in the line
|
|
171
|
1194 number position, or as an initial argument (like |:Next|).
|
|
7
|
1195 Specifying -count (without a default) acts like -count=0
|
|
|
1196
|
|
|
1197 Note that -range=N and -count=N are mutually exclusive - only one should be
|
|
|
1198 specified.
|
|
|
1199
|
|
|
1200 Special cases
|
|
|
1201
|
|
|
1202 There are some special cases as well:
|
|
|
1203
|
|
|
1204 -bang The command can take a ! modifier (like :q or :w)
|
|
|
1205 -bar The command can be followed by a "|" and another command.
|
|
|
1206 A "|" inside the command argument is not allowed then.
|
|
|
1207 Also checks for a " to start a comment.
|
|
|
1208 -register The first argument to the command can be an optional
|
|
|
1209 register name (like :del, :put, :yank).
|
|
|
1210 -buffer The command will only be available in the current buffer.
|
|
|
1211
|
|
|
1212 In the cases of the -count and -register attributes, if the optional argument
|
|
|
1213 is supplied, it is removed from the argument list and is available to the
|
|
|
1214 replacement text separately.
|
|
|
1215
|
|
|
1216 Replacement text
|
|
|
1217
|
|
|
1218 The replacement text for a user defined command is scanned for special escape
|
|
236
|
1219 sequences, using <...> notation. Escape sequences are replaced with values
|
|
|
1220 from the entered command line, and all other text is copied unchanged. The
|
|
|
1221 resulting string is executed as an Ex command. If the initial < of an escape
|
|
7
|
1222 sequence is preceded by a backslash, the sequence is copied unchanged.
|
|
|
1223
|
|
|
1224 The valid escape sequences are
|
|
|
1225
|
|
|
1226 *<line1>*
|
|
|
1227 <line1> The starting line of the command range.
|
|
|
1228 *<line2>*
|
|
|
1229 <line2> The final line of the command range.
|
|
|
1230 *<count>*
|
|
|
1231 <count> Any count supplied (as described for the '-range'
|
|
|
1232 and '-count' attributes).
|
|
|
1233 *<bang>*
|
|
|
1234 <bang> (See the '-bang' attribute) Expands to a ! if the
|
|
|
1235 command was executed with a ! modifier, otherwise
|
|
|
1236 expands to nothing.
|
|
|
1237 *<reg>* *<register>*
|
|
|
1238 <reg> (See the '-register' attribute) The optional register,
|
|
236
|
1239 if specified. Otherwise, expands to nothing. <register>
|
|
7
|
1240 is a synonym for this.
|
|
|
1241 *<args>*
|
|
|
1242 <args> The command arguments, exactly as supplied (but as
|
|
|
1243 noted above, any count or register can consume some
|
|
|
1244 of the arguments, which are then not part of <args>).
|
|
|
1245 <lt> A single '<' (Less-Than) character. This is needed if you
|
|
|
1246 want to get a literal copy of one of these escape sequences
|
|
|
1247 into the expansion - for example, to get <bang>, use
|
|
|
1248 <lt>bang>.
|
|
|
1249
|
|
|
1250 *<q-args>*
|
|
|
1251 If the first two characters of an escape sequence are "q-" (for example,
|
|
|
1252 <q-args>) then the value is quoted in such a way as to make it a valid value
|
|
|
1253 for use in an expression. This uses the argument as one single value.
|
|
300
|
1254 When there is no argument <q-args> is an empty string.
|
|
7
|
1255
|
|
|
1256 To allow commands to pass their arguments on to a user-defined function, there
|
|
236
|
1257 is a special form <f-args> ("function args"). This splits the command
|
|
7
|
1258 arguments at spaces and Tabs, quotes each argument individually, and the
|
|
|
1259 <f-args> sequence is replaced by the comma-separated list of quoted arguments.
|
|
482
|
1260 See the Mycmd example below. If no arguments are given <f-args> is removed.
|
|
7
|
1261
|
|
|
1262 Examples >
|
|
|
1263
|
|
|
1264 " Delete everything after here to the end
|
|
|
1265 :com Ddel +,$d
|
|
|
1266
|
|
|
1267 " Rename the current buffer
|
|
|
1268 :com -nargs=1 -bang -complete=file Ren f <args>|w<bang>
|
|
|
1269
|
|
|
1270 " Replace a range with the contents of a file
|
|
|
1271 " (Enter this all as one line)
|
|
|
1272 :com -range -nargs=1 -complete=file
|
|
|
1273 Replace <line1>-pu_|<line1>,<line2>d|r <args>|<line1>d
|
|
|
1274
|
|
|
1275 " Count the number of lines in the range
|
|
42
|
1276 :com! -range -nargs=0 Lines echo <line2> - <line1> + 1 "lines"
|
|
7
|
1277
|
|
|
1278 " Call a user function (example of <f-args>)
|
|
|
1279 :com -nargs=* Mycmd call Myfunc(<f-args>)
|
|
|
1280
|
|
|
1281 When executed as: >
|
|
|
1282 :Mycmd arg1 arg2
|
|
|
1283 This will invoke: >
|
|
|
1284 :call Myfunc("arg1","arg2")
|
|
|
1285
|
|
|
1286 :" A more substantial example
|
|
|
1287 :function Allargs(command)
|
|
|
1288 : let i = 0
|
|
|
1289 : while i < argc()
|
|
|
1290 : if filereadable(argv(i))
|
|
|
1291 : execute "e " . argv(i)
|
|
|
1292 : execute a:command
|
|
|
1293 : endif
|
|
|
1294 : let i = i + 1
|
|
|
1295 : endwhile
|
|
|
1296 :endfunction
|
|
|
1297 :command -nargs=+ -complete=command Allargs call Allargs(<q-args>)
|
|
|
1298
|
|
|
1299 The command Allargs takes any Vim command(s) as argument and executes it on all
|
|
|
1300 files in the argument list. Usage example (note use of the "e" flag to ignore
|
|
|
1301 errors and the "update" command to write modified buffers): >
|
|
|
1302 :Allargs %s/foo/bar/ge|update
|
|
|
1303 This will invoke: >
|
|
|
1304 :call Allargs("%s/foo/bar/ge|update")
|
|
|
1305 <
|
|
|
1306 When defining an user command in a script, it will be able to call functions
|
|
|
1307 local to the script and use mappings local to the script. When the user
|
|
|
1308 invokes the user command, it will run in the context of the script it was
|
|
|
1309 defined in. This matters if |<SID>| is used in a command.
|
|
|
1310
|
|
|
1311 vim:tw=78:ts=8:ft=help:norl:
|
