Mercurial > vim
annotate runtime/doc/usr_20.txt @ 3210:767bb493e7d3 v7.3.375
updated for version 7.3.375
Problem: Duplicate return statement.
Solution: Remove the superfluous one. (Dominique Pelle)
| author | Bram Moolenaar <bram@vim.org> |
|---|---|
| date | Wed, 14 Dec 2011 15:07:29 +0100 |
| parents | 073ff46fe397 |
| children | 6ec6b7ff2d43 |
| rev | line source |
|---|---|
|
2572
ee53a39d5896
Last changes for the 7.3 release!
Bram Moolenaar <bram@vim.org>
parents:
2561
diff
changeset
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1 *usr_20.txt* For Vim version 7.3. Last change: 2006 Apr 24 |
| 7 | 2 |
| 3 VIM USER MANUAL - by Bram Moolenaar | |
| 4 | |
| 5 Typing command-line commands quickly | |
| 6 | |
| 7 | |
| 8 Vim has a few generic features that makes it easier to enter commands. Colon | |
| 9 commands can be abbreviated, edited and repeated. Completion is available for | |
| 10 nearly everything. | |
| 11 | |
| 12 |20.1| Command line editing | |
| 13 |20.2| Command line abbreviations | |
| 14 |20.3| Command line completion | |
| 15 |20.4| Command line history | |
| 16 |20.5| Command line window | |
| 17 | |
| 18 Next chapter: |usr_21.txt| Go away and come back | |
| 19 Previous chapter: |usr_12.txt| Clever tricks | |
| 20 Table of contents: |usr_toc.txt| | |
| 21 | |
| 22 ============================================================================== | |
| 23 *20.1* Command line editing | |
| 24 | |
| 25 When you use a colon (:) command or search for a string with / or ?, Vim puts | |
| 26 the cursor on the bottom of the screen. There you type the command or search | |
| 27 pattern. This is called the Command line. Also when it's used for entering a | |
| 28 search command. | |
| 29 | |
| 30 The most obvious way to edit the command you type is by pressing the <BS> key. | |
| 31 This erases the character before the cursor. To erase another character, | |
| 32 typed earlier, first move the cursor with the cursor keys. | |
| 33 For example, you have typed this: > | |
| 34 | |
| 35 :s/col/pig/ | |
| 36 | |
| 37 Before you hit <Enter>, you notice that "col" should be "cow". To correct | |
| 38 this, you type <Left> five times. The cursor is now just after "col". Type | |
| 39 <BS> and "w" to correct: > | |
| 40 | |
| 41 :s/cow/pig/ | |
| 42 | |
| 43 Now you can press <Enter> directly. You don't have to move the cursor to the | |
| 44 end of the line before executing the command. | |
| 45 | |
| 46 The most often used keys to move around in the command line: | |
| 47 | |
| 48 <Left> one character left | |
| 49 <Right> one character right | |
| 50 <S-Left> or <C-Left> one word left | |
| 51 <S-Right> or <C-Right> one word right | |
| 52 CTRL-B or <Home> to begin of command line | |
| 53 CTRL-E or <End> to end of command line | |
| 54 | |
| 55 Note: | |
| 56 <S-Left> (cursor left key with Shift key pressed) and <C-Left> (cursor | |
| 57 left key with Control pressed) will not work on all keyboards. Same | |
| 58 for the other Shift and Control combinations. | |
| 59 | |
| 60 You can also use the mouse to move the cursor. | |
| 61 | |
| 62 | |
| 63 DELETING | |
| 64 | |
| 65 As mentioned, <BS> deletes the character before the cursor. To delete a whole | |
| 66 word use CTRL-W. | |
| 67 | |
| 68 /the fine pig ~ | |
| 69 | |
| 70 CTRL-W | |
| 71 | |
| 72 /the fine ~ | |
| 73 | |
| 74 CTRL-U removes all text, thus allows you to start all over again. | |
| 75 | |
| 76 | |
| 77 OVERSTRIKE | |
| 78 | |
| 79 The <Insert> key toggles between inserting characters and replacing the | |
| 80 existing ones. Start with this text: | |
| 81 | |
| 82 /the fine pig ~ | |
| 83 | |
| 84 Move the cursor to the start of "fine" with <S-Left> twice (or <Left> eight | |
| 85 times, if <S-Left> doesn't work). Now press <Insert> to switch to overstrike | |
| 86 and type "great": | |
| 87 | |
| 88 /the greatpig ~ | |
| 89 | |
| 90 Oops, we lost the space. Now, don't use <BS>, because it would delete the | |
| 91 "t" (this is different from Replace mode). Instead, press <Insert> to switch | |
| 92 from overstrike to inserting, and type the space: | |
| 93 | |
| 94 /the great pig ~ | |
| 95 | |
| 96 | |
| 97 CANCELLING | |
| 98 | |
| 99 You thought of executing a : or / command, but changed your mind. To get rid | |
| 100 of what you already typed, without executing it, press CTRL-C or <Esc>. | |
| 101 | |
| 102 Note: | |
| 103 <Esc> is the universal "get out" key. Unfortunately, in the good old | |
| 104 Vi pressing <Esc> in a command line executed the command! Since that | |
| 105 might be considered to be a bug, Vim uses <Esc> to cancel the command. | |
| 106 But with the 'cpoptions' option it can be made Vi compatible. And | |
| 107 when using a mapping (which might be written for Vi) <Esc> also works | |
| 108 Vi compatible. Therefore, using CTRL-C is a method that always works. | |
| 109 | |
| 110 If you are at the start of the command line, pressing <BS> will cancel the | |
| 111 command. It's like deleting the ":" or "/" that the line starts with. | |
| 112 | |
| 113 ============================================================================== | |
| 114 *20.2* Command line abbreviations | |
| 115 | |
| 116 Some of the ":" commands are really long. We already mentioned that | |
| 117 ":substitute" can be abbreviated to ":s". This is a generic mechanism, all | |
| 118 ":" commands can be abbreviated. | |
| 119 | |
| 120 How short can a command get? There are 26 letters, and many more commands. | |
| 121 For example, ":set" also starts with ":s", but ":s" doesn't start a ":set" | |
| 122 command. Instead ":set" can be abbreviated to ":se". | |
| 123 When the shorter form of a command could be used for two commands, it | |
| 124 stands for only one of them. There is no logic behind which one, you have to | |
| 125 learn them. In the help files the shortest form that works is mentioned. For | |
| 126 example: > | |
| 127 | |
| 128 :s[ubstitute] | |
| 129 | |
| 130 This means that the shortest form of ":substitute" is ":s". The following | |
| 131 characters are optional. Thus ":su" and ":sub" also work. | |
| 132 | |
| 133 In the user manual we will either use the full name of command, or a short | |
| 134 version that is still readable. For example, ":function" can be abbreviated | |
| 135 to ":fu". But since most people don't understand what that stands for, we | |
| 136 will use ":fun". (Vim doesn't have a ":funny" command, otherwise ":fun" would | |
| 137 be confusing too.) | |
| 138 | |
| 139 It is recommended that in Vim scripts you write the full command name. That | |
| 140 makes it easier to read back when you make later changes. Except for some | |
| 141 often used commands like ":w" (":write") and ":r" (":read"). | |
| 142 A particularly confusing one is ":end", which could stand for ":endif", | |
| 143 ":endwhile" or ":endfunction". Therefore, always use the full name. | |
| 144 | |
| 145 | |
| 146 SHORT OPTION NAMES | |
| 147 | |
| 148 In the user manual the long version of the option names is used. Many options | |
| 149 also have a short name. Unlike ":" commands, there is only one short name | |
| 150 that works. For example, the short name of 'autoindent' is 'ai'. Thus these | |
| 151 two commands do the same thing: > | |
| 152 | |
| 153 :set autoindent | |
| 154 :set ai | |
| 155 | |
| 156 You can find the full list of long and short names here: |option-list|. | |
| 157 | |
| 158 ============================================================================== | |
| 159 *20.3* Command line completion | |
| 160 | |
| 161 This is one of those Vim features that, by itself, is a reason to switch from | |
| 162 Vi to Vim. Once you have used this, you can't do without. | |
| 163 | |
| 164 Suppose you have a directory that contains these files: | |
| 165 | |
| 166 info.txt | |
| 167 intro.txt | |
| 168 bodyofthepaper.txt | |
| 169 | |
| 170 To edit the last one, you use the command: > | |
| 171 | |
| 172 :edit bodyofthepaper.txt | |
| 173 | |
| 174 It's easy to type this wrong. A much quicker way is: > | |
| 175 | |
| 176 :edit b<Tab> | |
| 177 | |
| 178 Which will result in the same command. What happened? The <Tab> key does | |
| 179 completion of the word before the cursor. In this case "b". Vim looks in the | |
| 180 directory and finds only one file that starts with a "b". That must be the | |
| 181 one you are looking for, thus Vim completes the file name for you. | |
| 182 | |
| 183 Now type: > | |
| 184 | |
| 185 :edit i<Tab> | |
| 186 | |
| 187 Vim will beep, and give you: > | |
| 188 | |
| 189 :edit info.txt | |
| 190 | |
| 191 The beep means that Vim has found more than one match. It then uses the first | |
| 192 match it found (alphabetically). If you press <Tab> again, you get: > | |
| 193 | |
| 194 :edit intro.txt | |
| 195 | |
| 196 Thus, if the first <Tab> doesn't give you the file you were looking for, press | |
| 197 it again. If there are more matches, you will see them all, one at a time. | |
| 198 If you press <Tab> on the last matching entry, you will go back to what you | |
| 199 first typed: > | |
| 200 | |
| 201 :edit i | |
| 202 | |
| 203 Then it starts all over again. Thus Vim cycles through the list of matches. | |
| 204 Use CTRL-P to go through the list in the other direction: | |
| 205 | |
| 206 <------------------- <Tab> -------------------------+ | |
| 207 | | |
| 208 <Tab> --> <Tab> --> | |
| 209 :edit i :edit info.txt :edit intro.txt | |
| 210 <-- CTRL-P <-- CTRL-P | |
| 211 | | |
| 212 +---------------------- CTRL-P ------------------------> | |
| 213 | |
| 214 | |
| 215 CONTEXT | |
| 216 | |
| 217 When you type ":set i" instead of ":edit i" and press <Tab> you get: > | |
| 218 | |
| 219 :set icon | |
| 220 | |
| 221 Hey, why didn't you get ":set info.txt"? That's because Vim has context | |
| 222 sensitive completion. The kind of words Vim will look for depends on the | |
| 223 command before it. Vim knows that you cannot use a file name just after a | |
| 224 ":set" command, but you can use an option name. | |
| 225 Again, if you repeat typing the <Tab>, Vim will cycle through all matches. | |
| 226 There are quite a few, it's better to type more characters first: > | |
| 227 | |
| 228 :set isk<Tab> | |
| 229 | |
| 230 Gives: > | |
| 231 | |
| 232 :set iskeyword | |
| 233 | |
| 234 Now type "=" and press <Tab>: > | |
| 235 | |
| 236 :set iskeyword=@,48-57,_,192-255 | |
| 237 | |
| 238 What happens here is that Vim inserts the old value of the option. Now you | |
| 239 can edit it. | |
| 240 What is completed with <Tab> is what Vim expects in that place. Just try | |
| 241 it out to see how it works. In some situations you will not get what you | |
| 242 want. That's either because Vim doesn't know what you want, or because | |
| 243 completion was not implemented for that situation. In that case you will get | |
| 244 a <Tab> inserted (displayed as ^I). | |
| 245 | |
| 246 | |
| 247 LIST MATCHES | |
| 248 | |
| 249 When there are many matches, you would like to see an overview. Do this by | |
| 250 pressing CTRL-D. For example, pressing CTRL-D after: > | |
| 251 | |
| 252 :set is | |
| 253 | |
| 254 results in: > | |
| 255 | |
| 256 :set is | |
| 257 incsearch isfname isident iskeyword isprint | |
| 258 :set is | |
| 259 | |
| 260 Vim lists the matches and then comes back with the text you typed. You can | |
| 261 now check the list for the item you wanted. If it isn't there, you can use | |
| 262 <BS> to correct the word. If there are many matches, type a few more | |
| 263 characters before pressing <Tab> to complete the rest. | |
| 264 If you have watched carefully, you will have noticed that "incsearch" | |
| 265 doesn't start with "is". In this case "is" stands for the short name of | |
| 237 | 266 "incsearch". (Many options have a short and a long name.) Vim is clever |
| 7 | 267 enough to know that you might have wanted to expand the short name of the |
| 268 option into the long name. | |
| 269 | |
| 270 | |
| 271 THERE IS MORE | |
| 272 | |
| 273 The CTRL-L command completes the word to the longest unambiguous string. If | |
| 274 you type ":edit i" and there are files "info.txt" and "info_backup.txt" you | |
| 275 will get ":edit info". | |
| 276 | |
| 277 The 'wildmode' option can be used to change the way completion works. | |
| 278 The 'wildmenu' option can be used to get a menu-like list of matches. | |
| 279 Use the 'suffixes' option to specify files that are less important and appear | |
| 280 at the end of the list of files. | |
| 281 The 'wildignore' option specifies files that are not listed at all. | |
| 282 | |
| 283 More about all of this here: |cmdline-completion| | |
| 284 | |
| 285 ============================================================================== | |
| 286 *20.4* Command line history | |
| 287 | |
| 288 In chapter 3 we briefly mentioned the history. The basics are that you can | |
| 289 use the <Up> key to recall an older command line. <Down> then takes you back | |
| 290 to newer commands. | |
| 291 | |
| 292 There are actually four histories. The ones we will mention here are for ":" | |
| 293 commands and for "/" and "?" search commands. The "/" and "?" commands share | |
| 294 the same history, because they are both search commands. The two other | |
| 295 histories are for expressions and input lines for the input() function. | |
| 296 |cmdline-history| | |
| 297 | |
| 298 Suppose you have done a ":set" command, typed ten more colon commands and then | |
| 299 want to repeat that ":set" command again. You could press ":" and then ten | |
| 300 times <Up>. There is a quicker way: > | |
| 301 | |
| 302 :se<Up> | |
| 303 | |
| 304 Vim will now go back to the previous command that started with "se". You have | |
| 305 a good chance that this is the ":set" command you were looking for. At least | |
| 306 you should not have to press <Up> very often (unless ":set" commands is all | |
| 307 you have done). | |
| 308 | |
| 309 The <Up> key will use the text typed so far and compare it with the lines in | |
| 310 the history. Only matching lines will be used. | |
| 311 If you do not find the line you were looking for, use <Down> to go back to | |
| 312 what you typed and correct that. Or use CTRL-U to start all over again. | |
| 313 | |
| 314 To see all the lines in the history: > | |
| 315 | |
| 316 :history | |
| 317 | |
| 318 That's the history of ":" commands. The search history is displayed with this | |
| 319 command: > | |
| 320 | |
| 321 :history / | |
| 322 | |
| 323 CTRL-P will work like <Up>, except that it doesn't matter what you already | |
| 324 typed. Similarly for CTRL-N and <Down>. CTRL-P stands for previous, CTRL-N | |
| 325 for next. | |
| 326 | |
| 327 ============================================================================== | |
| 328 *20.5* Command line window | |
| 329 | |
| 330 Typing the text in the command line works different from typing text in Insert | |
| 331 mode. It doesn't allow many commands to change the text. For most commands | |
| 332 that's OK, but sometimes you have to type a complicated command. That's where | |
| 333 the command line window is useful. | |
| 334 | |
| 335 Open the command line window with this command: > | |
| 336 | |
| 337 q: | |
| 338 | |
| 339 Vim now opens a (small) window at the bottom. It contains the command line | |
| 340 history, and an empty line at the end: | |
| 341 | |
| 342 +-------------------------------------+ | |
| 343 |other window | | |
| 344 |~ | | |
| 345 |file.txt=============================| | |
| 346 |:e c | | |
| 347 |:e config.h.in | | |
| 348 |:set path=.,/usr/include,, | | |
| 349 |:set iskeyword=@,48-57,_,192-255 | | |
| 350 |:set is | | |
| 351 |:q | | |
| 352 |: | | |
| 353 |command-line=========================| | |
| 354 | | | |
| 355 +-------------------------------------+ | |
| 356 | |
| 357 You are now in Normal mode. You can use the "hjkl" keys to move around. For | |
| 358 example, move up with "5k" to the ":e config.h.in" line. Type "$h" to go to | |
| 359 the "i" of "in" and type "cwout". Now you have changed the line to: | |
| 360 | |
| 361 :e config.h.out ~ | |
| 362 | |
| 363 Now press <Enter> and this command will be executed. The command line window | |
| 364 will close. | |
| 365 The <Enter> command will execute the line under the cursor. It doesn't | |
| 366 matter whether Vim is in Insert mode or in Normal mode. | |
| 367 Changes in the command line window are lost. They do not result in the | |
| 368 history to be changed. Except that the command you execute will be added to | |
| 369 the end of the history, like with all executed commands. | |
| 370 | |
| 371 The command line window is very useful when you want to have overview of the | |
| 372 history, lookup a similar command, change it a bit and execute it. A search | |
| 373 command can be used to find something. | |
| 374 In the previous example the "?config" search command could have been used | |
| 375 to find the previous command that contains "config". It's a bit strange, | |
| 376 because you are using a command line to search in the command line window. | |
| 377 While typing that search command you can't open another command line window, | |
| 378 there can be only one. | |
| 379 | |
| 380 ============================================================================== | |
| 381 | |
| 382 Next chapter: |usr_21.txt| Go away and come back | |
| 383 | |
| 384 Copyright: see |manual-copyright| vim:tw=78:ts=8:ft=help:norl: |