26
|
1 *usr_41.txt* For Vim version 7.0aa. Last change: 2004 Oct 06
|
7
|
2
|
|
3 VIM USER MANUAL - by Bram Moolenaar
|
|
4
|
|
5 Write a Vim script
|
|
6
|
|
7
|
|
8 The Vim script language is used for the startup vimrc file, syntax files, and
|
|
9 many other things. This chapter explains the items that can be used in a Vim
|
|
10 script. There are a lot of them, thus this is a long chapter.
|
|
11
|
|
12 |41.1| Introduction
|
|
13 |41.2| Variables
|
|
14 |41.3| Expressions
|
|
15 |41.4| Conditionals
|
|
16 |41.5| Executing an expression
|
|
17 |41.6| Using functions
|
|
18 |41.7| Defining a function
|
|
19 |41.8| Exceptions
|
|
20 |41.9| Various remarks
|
|
21 |41.10| Writing a plugin
|
|
22 |41.11| Writing a filetype plugin
|
|
23 |41.12| Writing a compiler plugin
|
|
24
|
|
25 Next chapter: |usr_42.txt| Add new menus
|
|
26 Previous chapter: |usr_40.txt| Make new commands
|
|
27 Table of contents: |usr_toc.txt|
|
|
28
|
|
29 ==============================================================================
|
|
30 *41.1* Introduction *vim-script-intro*
|
|
31
|
|
32 Your first experience with Vim scripts is the vimrc file. Vim reads it when
|
|
33 it starts up and executes the commands. You can set options to values you
|
|
34 prefer. And you can use any colon command in it (commands that start with a
|
|
35 ":"; these are sometimes referred to as Ex commands or command-line commands).
|
|
36 Syntax files are also Vim scripts. As are files that set options for a
|
|
37 specific file type. A complicated macro can be defined by a separate Vim
|
|
38 script file. You can think of other uses yourself.
|
|
39
|
|
40 Let's start with a simple example: >
|
|
41
|
|
42 :let i = 1
|
|
43 :while i < 5
|
|
44 : echo "count is" i
|
|
45 : let i = i + 1
|
|
46 :endwhile
|
|
47 <
|
|
48 Note:
|
|
49 The ":" characters are not really needed here. You only need to use
|
|
50 them when you type a command. In a Vim script file they can be left
|
|
51 out. We will use them here anyway to make clear these are colon
|
|
52 commands and make them stand out from Normal mode commands.
|
|
53
|
|
54 The ":let" command assigns a value to a variable. The generic form is: >
|
|
55
|
|
56 :let {variable} = {expression}
|
|
57
|
|
58 In this case the variable name is "i" and the expression is a simple value,
|
|
59 the number one.
|
|
60 The ":while" command starts a loop. The generic form is: >
|
|
61
|
|
62 :while {condition}
|
|
63 : {statements}
|
|
64 :endwhile
|
|
65
|
|
66 The statements until the matching ":endwhile" are executed for as long as the
|
|
67 condition is true. The condition used here is the expression "i < 5". This
|
|
68 is true when the variable i is smaller than five.
|
|
69 The ":echo" command prints its arguments. In this case the string "count
|
|
70 is" and the value of the variable i. Since i is one, this will print:
|
|
71
|
|
72 count is 1 ~
|
|
73
|
|
74 Then there is another ":let i =" command. The value used is the expression "i
|
|
75 + 1". This adds one to the variable i and assigns the new value to the same
|
|
76 variable.
|
|
77 The output of the example code is:
|
|
78
|
|
79 count is 1 ~
|
|
80 count is 2 ~
|
|
81 count is 3 ~
|
|
82 count is 4 ~
|
|
83
|
|
84 Note:
|
|
85 If you happen to write a while loop that keeps on running, you can
|
|
86 interrupt it by pressing CTRL-C (CTRL-Break on MS-Windows).
|
|
87
|
|
88
|
|
89 THREE KINDS OF NUMBERS
|
|
90
|
|
91 Numbers can be decimal, hexadecimal or octal. A hexadecimal number starts
|
|
92 with "0x" or "0X". For example "0x1f" is 31. An octal number starts with a
|
|
93 zero. "017" is 15. Careful: don't put a zero before a decimal number, it
|
|
94 will be interpreted as an octal number!
|
|
95 The ":echo" command always prints decimal numbers. Example: >
|
|
96
|
|
97 :echo 0x7f 036
|
|
98 < 127 30 ~
|
|
99
|
|
100 A number is made negative with a minus sign. This also works for hexadecimal
|
|
101 and octal numbers. A minus sign is also for subtraction. Compare this with
|
|
102 the previous example: >
|
|
103
|
|
104 :echo 0x7f -036
|
|
105 < 97 ~
|
|
106
|
|
107 White space in an expression is ignored. However, it's recommended to use it
|
|
108 for separating items, to make the expression easier to read. For example, to
|
|
109 avoid the confusion with a negative number, put a space between the minus sign
|
|
110 and the following number: >
|
|
111
|
|
112 :echo 0x7f - 036
|
|
113
|
|
114 ==============================================================================
|
|
115 *41.2* Variables
|
|
116
|
|
117 A variable name consists of ASCII letters, digits and the underscore. It
|
|
118 cannot start with a digit. Valid variable names are:
|
|
119
|
|
120 counter
|
|
121 _aap3
|
|
122 very_long_variable_name_with_underscores
|
|
123 FuncLength
|
|
124 LENGTH
|
|
125
|
|
126 Invalid names are "foo+bar" and "6var".
|
|
127 These variables are global. To see a list of currently defined variables
|
|
128 use this command: >
|
|
129
|
|
130 :let
|
|
131
|
|
132 You can use global variables everywhere. This also means that when the
|
|
133 variable "count" is used in one script file, it might also be used in another
|
|
134 file. This leads to confusion at least, and real problems at worst. To avoid
|
|
135 this, you can use a variable local to a script file by prepending "s:". For
|
|
136 example, one script contains this code: >
|
|
137
|
|
138 :let s:count = 1
|
|
139 :while s:count < 5
|
|
140 : source other.vim
|
|
141 : let s:count = s:count + 1
|
|
142 :endwhile
|
|
143
|
|
144 Since "s:count" is local to this script, you can be sure that sourcing the
|
|
145 "other.vim" script will not change this variable. If "other.vim" also uses an
|
|
146 "s:count" variable, it will be a different copy, local to that script. More
|
|
147 about script-local variables here: |script-variable|.
|
|
148
|
|
149 There are more kinds of variables, see |internal-variables|. The most often
|
|
150 used ones are:
|
|
151
|
|
152 b:name variable local to a buffer
|
|
153 w:name variable local to a window
|
|
154 g:name global variable (also in a function)
|
|
155 v:name variable predefined by Vim
|
|
156
|
|
157
|
|
158 DELETING VARIABLES
|
|
159
|
|
160 Variables take up memory and show up in the output of the ":let" command. To
|
|
161 delete a variable use the ":unlet" command. Example: >
|
|
162
|
|
163 :unlet s:count
|
|
164
|
|
165 This deletes the script-local variable "s:count" to free up the memory it
|
|
166 uses. If you are not sure if the variable exists, and don't want an error
|
|
167 message when it doesn't, append !: >
|
|
168
|
|
169 :unlet! s:count
|
|
170
|
|
171 When a script finishes, the local variables used there will not be
|
|
172 automatically freed. The next time the script executes, it can still use the
|
|
173 old value. Example: >
|
|
174
|
|
175 :if !exists("s:call_count")
|
|
176 : let s:call_count = 0
|
|
177 :endif
|
|
178 :let s:call_count = s:call_count + 1
|
|
179 :echo "called" s:call_count "times"
|
|
180
|
|
181 The "exists()" function checks if a variable has already been defined. Its
|
|
182 argument is the name of the variable you want to check. Not the variable
|
|
183 itself! If you would do this: >
|
|
184
|
|
185 :if !exists(s:call_count)
|
|
186
|
|
187 Then the value of s:call_count will be used as the name of the variable that
|
|
188 exists() checks. That's not what you want.
|
|
189 The exclamation mark ! negates a value. When the value was true, it
|
|
190 becomes false. When it was false, it becomes true. You can read it as "not".
|
|
191 Thus "if !exists()" can be read as "if not exists()".
|
|
192 What Vim calls true is anything that is not zero. Only zero is false.
|
|
193
|
|
194
|
|
195 STRING VARIABLES AND CONSTANTS
|
|
196
|
|
197 So far only numbers were used for the variable value. Strings can be used as
|
|
198 well. Numbers and strings are the only two types of variables that Vim
|
|
199 supports. The type is dynamic, it is set each time when assigning a value to
|
|
200 the variable with ":let".
|
|
201 To assign a string value to a variable, you need to use a string constant.
|
|
202 There are two types of these. First the string in double quotes: >
|
|
203
|
|
204 :let name = "peter"
|
|
205 :echo name
|
|
206 < peter ~
|
|
207
|
|
208 If you want to include a double quote inside the string, put a backslash in
|
|
209 front of it: >
|
|
210
|
|
211 :let name = "\"peter\""
|
|
212 :echo name
|
|
213 < "peter" ~
|
|
214
|
|
215 To avoid the need for a backslash, you can use a string in single quotes: >
|
|
216
|
|
217 :let name = '"peter"'
|
|
218 :echo name
|
|
219 < "peter" ~
|
|
220
|
26
|
221 Inside a single-quote string all the characters are as they are. The drawback
|
|
222 is that it's impossible to include a single quote. A backslash is taken
|
|
223 literally as well, thus you can't use it to change the meaning of the
|
7
|
224 character after it.
|
|
225 In double-quote strings it is possible to use special characters. Here are
|
|
226 a few useful ones:
|
|
227
|
|
228 \t <Tab>
|
|
229 \n <NL>, line break
|
|
230 \r <CR>, <Enter>
|
|
231 \e <Esc>
|
|
232 \b <BS>, backspace
|
|
233 \" "
|
|
234 \\ \, backslash
|
|
235 \<Esc> <Esc>
|
|
236 \<C-W> CTRL-W
|
|
237
|
|
238 The last two are just examples. The "\<name>" form can be used to include
|
|
239 the special key "name".
|
|
240 See |expr-quote| for the full list of special items in a string.
|
|
241
|
|
242 ==============================================================================
|
|
243 *41.3* Expressions
|
|
244
|
|
245 Vim has a rich, yet simple way to handle expressions. You can read the
|
|
246 definition here: |expression-syntax|. Here we will show the most common
|
|
247 items.
|
|
248 The numbers, strings and variables mentioned above are expressions by
|
|
249 themselves. Thus everywhere an expression is expected, you can use a number,
|
|
250 string or variable. Other basic items in an expression are:
|
|
251
|
|
252 $NAME environment variable
|
|
253 &name option
|
|
254 @r register
|
|
255
|
|
256 Examples: >
|
|
257
|
|
258 :echo "The value of 'tabstop' is" &ts
|
|
259 :echo "Your home directory is" $HOME
|
|
260 :if @a > 5
|
|
261
|
|
262 The &name form can be used to save an option value, set it to a new value,
|
|
263 do something and restore the old value. Example: >
|
|
264
|
|
265 :let save_ic = &ic
|
|
266 :set noic
|
|
267 :/The Start/,$delete
|
|
268 :let &ic = save_ic
|
|
269
|
|
270 This makes sure the "The Start" pattern is used with the 'ignorecase' option
|
|
271 off. Still, it keeps the value that the user had set.
|
|
272
|
|
273
|
|
274 MATHEMATICS
|
|
275
|
|
276 It becomes more interesting if we combine these basic items. Let's start with
|
|
277 mathematics on numbers:
|
|
278
|
|
279 a + b add
|
|
280 a - b subtract
|
|
281 a * b multiply
|
|
282 a / b divide
|
|
283 a % b modulo
|
|
284
|
|
285 The usual precedence is used. Example: >
|
|
286
|
|
287 :echo 10 + 5 * 2
|
|
288 < 20 ~
|
|
289
|
|
290 Grouping is done with braces. No surprises here. Example: >
|
|
291
|
|
292 :echo (10 + 5) * 2
|
|
293 < 30 ~
|
|
294
|
|
295 Strings can be concatenated with ".". Example: >
|
|
296
|
|
297 :echo "foo" . "bar"
|
|
298 < foobar ~
|
|
299
|
|
300 When the ":echo" command gets multiple arguments, it separates them with a
|
|
301 space. In the example the argument is a single expression, thus no space is
|
|
302 inserted.
|
|
303
|
|
304 Borrowed from the C language is the conditional expression:
|
|
305
|
|
306 a ? b : c
|
|
307
|
|
308 If "a" evaluates to true "b" is used, otherwise "c" is used. Example: >
|
|
309
|
|
310 :let i = 4
|
|
311 :echo i > 5 ? "i is big" : "i is small"
|
|
312 < i is small ~
|
|
313
|
|
314 The three parts of the constructs are always evaluated first, thus you could
|
|
315 see it work as:
|
|
316
|
|
317 (a) ? (b) : (c)
|
|
318
|
|
319 ==============================================================================
|
|
320 *41.4* Conditionals
|
|
321
|
|
322 The ":if" commands executes the following statements, until the matching
|
|
323 ":endif", only when a condition is met. The generic form is:
|
|
324
|
|
325 :if {condition}
|
|
326 {statements}
|
|
327 :endif
|
|
328
|
|
329 Only when the expression {condition} evaluates to true (non-zero) will the
|
|
330 {statements} be executed. These must still be valid commands. If they
|
|
331 contain garbage, Vim won't be able to find the ":endif".
|
|
332 You can also use ":else". The generic form for this is:
|
|
333
|
|
334 :if {condition}
|
|
335 {statements}
|
|
336 :else
|
|
337 {statements}
|
|
338 :endif
|
|
339
|
|
340 The second {statements} is only executed if the first one isn't.
|
|
341 Finally, there is ":elseif":
|
|
342
|
|
343 :if {condition}
|
|
344 {statements}
|
|
345 :elseif {condition}
|
|
346 {statements}
|
|
347 :endif
|
|
348
|
|
349 This works just like using ":else" and then "if", but without the need for an
|
|
350 extra ":endif".
|
|
351 A useful example for your vimrc file is checking the 'term' option and
|
|
352 doing something depending upon its value: >
|
|
353
|
|
354 :if &term == "xterm"
|
|
355 : " Do stuff for xterm
|
|
356 :elseif &term == "vt100"
|
|
357 : " Do stuff for a vt100 terminal
|
|
358 :else
|
|
359 : " Do something for other terminals
|
|
360 :endif
|
|
361
|
|
362
|
|
363 LOGIC OPERATIONS
|
|
364
|
|
365 We already used some of them in the examples. These are the most often used
|
|
366 ones:
|
|
367
|
|
368 a == b equal to
|
|
369 a != b not equal to
|
|
370 a > b greater than
|
|
371 a >= b greater than or equal to
|
|
372 a < b less than
|
|
373 a <= b less than or equal to
|
|
374
|
|
375 The result is one if the condition is met and zero otherwise. An example: >
|
|
376
|
|
377 :if v:version >= 600
|
|
378 : echo "congratulations"
|
|
379 :else
|
|
380 : echo "you are using an old version, upgrade!"
|
|
381 :endif
|
|
382
|
|
383 Here "v:version" is a variable defined by Vim, which has the value of the Vim
|
|
384 version. 600 is for version 6.0. Version 6.1 has the value 601. This is
|
|
385 very useful to write a script that works with multiple versions of Vim.
|
|
386 |v:version|
|
|
387
|
|
388 The logic operators work both for numbers and strings. When comparing two
|
|
389 strings, the mathematical difference is used. This compares byte values,
|
|
390 which may not be right for some languages.
|
|
391 When comparing a string with a number, the string is first converted to a
|
|
392 number. This is a bit tricky, because when a string doesn't look like a
|
|
393 number, the number zero is used. Example: >
|
|
394
|
|
395 :if 0 == "one"
|
|
396 : echo "yes"
|
|
397 :endif
|
|
398
|
|
399 This will echo "yes", because "one" doesn't look like a number, thus it is
|
|
400 converted to the number zero.
|
|
401
|
|
402 For strings there are two more items:
|
|
403
|
|
404 a =~ b matches with
|
|
405 a !~ b does not match with
|
|
406
|
|
407 The left item "a" is used as a string. The right item "b" is used as a
|
|
408 pattern, like what's used for searching. Example: >
|
|
409
|
|
410 :if str =~ " "
|
|
411 : echo "str contains a space"
|
|
412 :endif
|
|
413 :if str !~ '\.$'
|
|
414 : echo "str does not end in a full stop"
|
|
415 :endif
|
|
416
|
|
417 Notice the use of a single-quote string for the pattern. This is useful,
|
|
418 because backslashes need to be doubled in a double-quote string and patterns
|
|
419 tend to contain many backslashes.
|
|
420
|
|
421 The 'ignorecase' option is used when comparing strings. When you don't want
|
|
422 that, append "#" to match case and "?" to ignore case. Thus "==?" compares
|
|
423 two strings to be equal while ignoring case. And "!~#" checks if a pattern
|
|
424 doesn't match, also checking the case of letters. For the full table see
|
|
425 |expr-==|.
|
|
426
|
|
427
|
|
428 MORE LOOPING
|
|
429
|
|
430 The ":while" command was already mentioned. Two more statements can be used
|
|
431 in between the ":while" and the ":endwhile":
|
|
432
|
|
433 :continue Jump back to the start of the while loop; the
|
|
434 loop continues.
|
|
435 :break Jump forward to the ":endwhile"; the loop is
|
|
436 discontinued.
|
|
437
|
|
438 Example: >
|
|
439
|
|
440 :while counter < 40
|
|
441 : call do_something()
|
|
442 : if skip_flag
|
|
443 : continue
|
|
444 : endif
|
|
445 : if finished_flag
|
|
446 : break
|
|
447 : endif
|
|
448 : sleep 50m
|
|
449 :endwhile
|
|
450
|
|
451 The ":sleep" command makes Vim take a nap. The "50m" specifies fifty
|
|
452 milliseconds. Another example is ":sleep 4", which sleeps for four seconds.
|
|
453
|
|
454 ==============================================================================
|
|
455 *41.5* Executing an expression
|
|
456
|
|
457 So far the commands in the script were executed by Vim directly. The
|
|
458 ":execute" command allows executing the result of an expression. This is a
|
|
459 very powerful way to build commands and execute them.
|
|
460 An example is to jump to a tag, which is contained in a variable: >
|
|
461
|
|
462 :execute "tag " . tag_name
|
|
463
|
|
464 The "." is used to concatenate the string "tag " with the value of variable
|
|
465 "tag_name". Suppose "tag_name" has the value "get_cmd", then the command that
|
|
466 will be executed is: >
|
|
467
|
|
468 :tag get_cmd
|
|
469
|
|
470 The ":execute" command can only execute colon commands. The ":normal" command
|
|
471 executes Normal mode commands. However, its argument is not an expression but
|
|
472 the literal command characters. Example: >
|
|
473
|
|
474 :normal gg=G
|
|
475
|
|
476 This jumps to the first line and formats all lines with the "=" operator.
|
|
477 To make ":normal" work with an expression, combine ":execute" with it.
|
|
478 Example: >
|
|
479
|
|
480 :execute "normal " . normal_commands
|
|
481
|
|
482 The variable "normal_commands" must contain the Normal mode commands.
|
|
483 Make sure that the argument for ":normal" is a complete command. Otherwise
|
|
484 Vim will run into the end of the argument and abort the command. For example,
|
|
485 if you start Insert mode, you must leave Insert mode as well. This works: >
|
|
486
|
|
487 :execute "normal Inew text \<Esc>"
|
|
488
|
|
489 This inserts "new text " in the current line. Notice the use of the special
|
|
490 key "\<Esc>". This avoids having to enter a real <Esc> character in your
|
|
491 script.
|
|
492
|
|
493 ==============================================================================
|
|
494 *41.6* Using functions
|
|
495
|
|
496 Vim defines many functions and provides a large amount of functionality that
|
|
497 way. A few examples will be given in this section. You can find the whole
|
|
498 list here: |functions|.
|
|
499
|
|
500 A function is called with the ":call" command. The parameters are passed in
|
|
501 between braces, separated by commas. Example: >
|
|
502
|
|
503 :call search("Date: ", "W")
|
|
504
|
|
505 This calls the search() function, with arguments "Date: " and "W". The
|
|
506 search() function uses its first argument as a search pattern and the second
|
|
507 one as flags. The "W" flag means the search doesn't wrap around the end of
|
|
508 the file.
|
|
509
|
|
510 A function can be called in an expression. Example: >
|
|
511
|
|
512 :let line = getline(".")
|
|
513 :let repl = substitute(line, '\a', "*", "g")
|
|
514 :call setline(".", repl)
|
|
515
|
|
516 The getline() function obtains a line from the current file. Its argument is
|
|
517 a specification of the line number. In this case "." is used, which means the
|
|
518 line where the cursor is.
|
|
519 The substitute() function does something similar to the ":substitute"
|
|
520 command. The first argument is the string on which to perform the
|
|
521 substitution. The second argument is the pattern, the third the replacement
|
|
522 string. Finally, the last arguments are the flags.
|
|
523 The setline() function sets the line, specified by the first argument, to a
|
|
524 new string, the second argument. In this example the line under the cursor is
|
|
525 replaced with the result of the substitute(). Thus the effect of the three
|
|
526 statements is equal to: >
|
|
527
|
|
528 :substitute/\a/*/g
|
|
529
|
|
530 Using the functions becomes more interesting when you do more work before and
|
|
531 after the substitute() call.
|
|
532
|
|
533
|
|
534 FUNCTIONS *function-list*
|
|
535
|
|
536 There are many functions. We will mention them here, grouped by what they are
|
|
537 used for. You can find an alphabetical list here: |functions|. Use CTRL-] on
|
|
538 the function name to jump to detailed help on it.
|
|
539
|
|
540 String manipulation:
|
|
541 char2nr() get ASCII value of a character
|
|
542 nr2char() get a character by its ASCII value
|
|
543 escape() escape characters in a string with a '\'
|
|
544 strtrans() translate a string to make it printable
|
|
545 tolower() turn a string to lowercase
|
|
546 toupper() turn a string to uppercase
|
|
547 match() position where a pattern matches in a string
|
|
548 matchend() position where a pattern match ends in a string
|
|
549 matchstr() match of a pattern in a string
|
|
550 stridx() first index of a short string in a long string
|
|
551 strridx() last index of a short string in a long string
|
|
552 strlen() length of a string
|
|
553 substitute() substitute a pattern match with a string
|
|
554 submatch() get a specific match in a ":substitute"
|
|
555 strpart() get part of a string
|
|
556 expand() expand special keywords
|
|
557 type() type of a variable
|
|
558 iconv() convert text from one encoding to another
|
|
559
|
|
560 Working with text in the current buffer:
|
|
561 byte2line() get line number at a specific byte count
|
|
562 line2byte() byte count at a specific line
|
|
563 col() column number of the cursor or a mark
|
|
564 virtcol() screen column of the cursor or a mark
|
|
565 line() line number of the cursor or mark
|
|
566 wincol() window column number of the cursor
|
|
567 winline() window line number of the cursor
|
|
568 cursor() position the cursor at a line/column
|
|
569 getline() get a line from the buffer
|
|
570 setline() replace a line in the buffer
|
|
571 append() append {string} below line {lnum}
|
|
572 indent() indent of a specific line
|
|
573 cindent() indent according to C indenting
|
|
574 lispindent() indent according to Lisp indenting
|
|
575 nextnonblank() find next non-blank line
|
|
576 prevnonblank() find previous non-blank line
|
|
577 search() find a match for a pattern
|
|
578 searchpair() find the other end of a start/skip/end
|
|
579
|
|
580 System functions and manipulation of files:
|
|
581 browse() put up a file requester
|
|
582 glob() expand wildcards
|
|
583 globpath() expand wildcards in a number of directories
|
|
584 resolve() find out where a shortcut points to
|
|
585 fnamemodify() modify a file name
|
|
586 executable() check if an executable program exists
|
|
587 filereadable() check if a file can be read
|
|
588 filewritable() check if a file can be written to
|
|
589 isdirectory() check if a directory exists
|
|
590 getcwd() get the current working directory
|
|
591 getfsize() get the size of a file
|
|
592 getftime() get last modification time of a file
|
|
593 localtime() get current time
|
|
594 strftime() convert time to a string
|
|
595 tempname() get the name of a temporary file
|
|
596 delete() delete a file
|
|
597 rename() rename a file
|
|
598 system() get the result of a shell command
|
|
599 hostname() name of the system
|
|
600
|
|
601 Buffers, windows and the argument list:
|
|
602 argc() number of entries in the argument list
|
|
603 argidx() current position in the argument list
|
|
604 argv() get one entry from the argument list
|
|
605 bufexists() check if a buffer exists
|
|
606 buflisted() check if a buffer exists and is listed
|
|
607 bufloaded() check if a buffer exists and is loaded
|
|
608 bufname() get the name of a specific buffer
|
|
609 bufnr() get the buffer number of a specific buffer
|
|
610 winnr() get the window number for the current window
|
|
611 bufwinnr() get the window number of a specific buffer
|
|
612 winbufnr() get the buffer number of a specific window
|
|
613 getbufvar() get a variable value from a specific buffer
|
|
614 setbufvar() set a variable in a specific buffer
|
|
615 getwinvar() get a variable value from a specific window
|
|
616 setwinvar() set a variable in a specific window
|
|
617
|
|
618 Folding:
|
|
619 foldclosed() check for a closed fold at a specific line
|
|
620 foldclosedend() like foldclosed() but return the last line
|
|
621 foldlevel() check for the fold level at a specific line
|
|
622 foldtext() generate the line displayed for a closed fold
|
|
623
|
|
624 Syntax highlighting:
|
|
625 hlexists() check if a highlight group exists
|
|
626 hlID() get ID of a highlight group
|
|
627 synID() get syntax ID at a specific position
|
|
628 synIDattr() get a specific attribute of a syntax ID
|
|
629 synIDtrans() get translated syntax ID
|
|
630
|
|
631 History:
|
|
632 histadd() add an item to a history
|
|
633 histdel() delete an item from a history
|
|
634 histget() get an item from a history
|
|
635 histnr() get highest index of a history list
|
|
636
|
|
637 Interactive:
|
|
638 confirm() let the user make a choice
|
|
639 getchar() get a character from the user
|
|
640 getcharmod() get modifiers for the last typed character
|
|
641 input() get a line from the user
|
|
642 inputsecret() get a line from the user without showing it
|
|
643 inputdialog() get a line from the user in a dialog
|
|
644 inputresave save and clear typeahead
|
|
645 inputrestore() restore typeahead
|
|
646
|
|
647 Vim server:
|
|
648 serverlist() return the list of server names
|
|
649 remote_send() send command characters to a Vim server
|
|
650 remote_expr() evaluate an expression in a Vim server
|
|
651 server2client() send a reply to a client of a Vim server
|
|
652 remote_peek() check if there is a reply from a Vim server
|
|
653 remote_read() read a reply from a Vim server
|
|
654 foreground() move the Vim window to the foreground
|
|
655 remote_foreground() move the Vim server window to the foreground
|
|
656
|
|
657 Various:
|
|
658 mode() get current editing mode
|
|
659 visualmode() last visual mode used
|
|
660 hasmapto() check if a mapping exists
|
|
661 mapcheck() check if a matching mapping exists
|
|
662 maparg() get rhs of a mapping
|
|
663 exists() check if a variable, function, etc. exists
|
|
664 has() check if a feature is supported in Vim
|
|
665 cscope_connection() check if a cscope connection exists
|
|
666 did_filetype() check if a FileType autocommand was used
|
|
667 eventhandler() check if invoked by an event handler
|
|
668 getwinposx() X position of the GUI Vim window
|
|
669 getwinposy() Y position of the GUI Vim window
|
|
670 winheight() get height of a specific window
|
|
671 winwidth() get width of a specific window
|
|
672 libcall() call a function in an external library
|
|
673 libcallnr() idem, returning a number
|
|
674 getreg() get contents of a register
|
|
675 getregtype() get type of a register
|
|
676 setreg() set contents and type of a register
|
|
677
|
|
678 ==============================================================================
|
|
679 *41.7* Defining a function
|
|
680
|
|
681 Vim enables you to define your own functions. The basic function declaration
|
|
682 begins as follows: >
|
|
683
|
|
684 :function {name}({var1}, {var2}, ...)
|
|
685 : {body}
|
|
686 :endfunction
|
|
687 <
|
|
688 Note:
|
|
689 Function names must begin with a capital letter.
|
|
690
|
|
691 Let's define a short function to return the smaller of two numbers. It starts
|
|
692 with this line: >
|
|
693
|
|
694 :function Min(num1, num2)
|
|
695
|
|
696 This tells Vim that the function is named "Min" and it takes two arguments:
|
|
697 "num1" and "num2".
|
|
698 The first thing you need to do is to check to see which number is smaller:
|
|
699 >
|
|
700 : if a:num1 < a:num2
|
|
701
|
|
702 The special prefix "a:" tells Vim that the variable is a function argument.
|
|
703 Let's assign the variable "smaller" the value of the smallest number: >
|
|
704
|
|
705 : if a:num1 < a:num2
|
|
706 : let smaller = a:num1
|
|
707 : else
|
|
708 : let smaller = a:num2
|
|
709 : endif
|
|
710
|
|
711 The variable "smaller" is a local variable. Variables used inside a function
|
|
712 are local unless prefixed by something like "g:", "a:", or "s:".
|
|
713
|
|
714 Note:
|
|
715 To access a global variable from inside a function you must prepend
|
|
716 "g:" to it. Thus "g:count" inside a function is used for the global
|
|
717 variable "count", and "count" is another variable, local to the
|
|
718 function.
|
|
719
|
|
720 You now use the ":return" statement to return the smallest number to the user.
|
|
721 Finally, you end the function: >
|
|
722
|
|
723 : return smaller
|
|
724 :endfunction
|
|
725
|
|
726 The complete function definition is as follows: >
|
|
727
|
|
728 :function Min(num1, num2)
|
|
729 : if a:num1 < a:num2
|
|
730 : let smaller = a:num1
|
|
731 : else
|
|
732 : let smaller = a:num2
|
|
733 : endif
|
|
734 : return smaller
|
|
735 :endfunction
|
|
736
|
|
737 A user defined function is called in exactly the same way as a builtin
|
|
738 function. Only the name is different. The Min function can be used like
|
|
739 this: >
|
|
740
|
|
741 :echo Min(5, 8)
|
|
742
|
|
743 Only now will the function be executed and the lines be interpreted by Vim.
|
|
744 If there are mistakes, like using an undefined variable or function, you will
|
|
745 now get an error message. When defining the function these errors are not
|
|
746 detected.
|
|
747
|
|
748 When a function reaches ":endfunction" or ":return" is used without an
|
|
749 argument, the function returns zero.
|
|
750
|
|
751 To redefine a function that already exists, use the ! for the ":function"
|
|
752 command: >
|
|
753
|
|
754 :function! Min(num1, num2, num3)
|
|
755
|
|
756
|
|
757 USING A RANGE
|
|
758
|
|
759 The ":call" command can be given a line range. This can have one of two
|
|
760 meanings. When a function has been defined with the "range" keyword, it will
|
|
761 take care of the line range itself.
|
|
762 The function will be passed the variables "a:firstline" and "a:lastline".
|
|
763 These will have the line numbers from the range the function was called with.
|
|
764 Example: >
|
|
765
|
|
766 :function Count_words() range
|
|
767 : let n = a:firstline
|
|
768 : let count = 0
|
|
769 : while n <= a:lastline
|
|
770 : let count = count + Wordcount(getline(n))
|
|
771 : let n = n + 1
|
|
772 : endwhile
|
|
773 : echo "found " . count . " words"
|
|
774 :endfunction
|
|
775
|
|
776 You can call this function with: >
|
|
777
|
|
778 :10,30call Count_words()
|
|
779
|
|
780 It will be executed once and echo the number of words.
|
|
781 The other way to use a line range is by defining a function without the
|
|
782 "range" keyword. The function will be called once for every line in the
|
|
783 range, with the cursor in that line. Example: >
|
|
784
|
|
785 :function Number()
|
|
786 : echo "line " . line(".") . " contains: " . getline(".")
|
|
787 :endfunction
|
|
788
|
|
789 If you call this function with: >
|
|
790
|
|
791 :10,15call Number()
|
|
792
|
|
793 The function will be called six times.
|
|
794
|
|
795
|
|
796 VARIABLE NUMBER OF ARGUMENTS
|
|
797
|
|
798 Vim enables you to define functions that have a variable number of arguments.
|
|
799 The following command, for instance, defines a function that must have 1
|
|
800 argument (start) and can have up to 20 additional arguments: >
|
|
801
|
|
802 :function Show(start, ...)
|
|
803
|
|
804 The variable "a:1" contains the first optional argument, "a:2" the second, and
|
|
805 so on. The variable "a:0" contains the number of extra arguments.
|
|
806 For example: >
|
|
807
|
|
808 :function Show(start, ...)
|
|
809 : echohl Title
|
|
810 : echo "Show is " . a:start
|
|
811 : echohl None
|
|
812 : let index = 1
|
|
813 : while index <= a:0
|
|
814 : echo " Arg " . index . " is " . a:{index}
|
|
815 : let index = index + 1
|
|
816 : endwhile
|
|
817 : echo ""
|
|
818 :endfunction
|
|
819
|
|
820 This uses the ":echohl" command to specify the highlighting used for the
|
|
821 following ":echo" command. ":echohl None" stops it again. The ":echon"
|
|
822 command works like ":echo", but doesn't output a line break.
|
|
823
|
|
824
|
|
825 LISTING FUNCTIONS
|
|
826
|
|
827 The ":function" command lists the names and arguments of all user-defined
|
|
828 functions: >
|
|
829
|
|
830 :function
|
|
831 < function Show(start, ...) ~
|
|
832 function GetVimIndent() ~
|
|
833 function SetSyn(name) ~
|
|
834
|
|
835 To see what a function does, use its name as an argument for ":function": >
|
|
836
|
|
837 :function SetSyn
|
|
838 < 1 if &syntax == '' ~
|
|
839 2 let &syntax = a:name ~
|
|
840 3 endif ~
|
|
841 endfunction ~
|
|
842
|
|
843
|
|
844 DEBUGGING
|
|
845
|
|
846 The line number is useful for when you get an error message or when debugging.
|
|
847 See |debug-scripts| about debugging mode.
|
|
848 You can also set the 'verbose' option to 12 or higher to see all function
|
|
849 calls. Set it to 15 or higher to see every executed line.
|
|
850
|
|
851
|
|
852 DELETING A FUNCTION
|
|
853
|
|
854 To delete the Show() function: >
|
|
855
|
|
856 :delfunction Show
|
|
857
|
|
858 You get an error when the function doesn't exist.
|
|
859
|
|
860 ==============================================================================
|
|
861 *41.8* Exceptions
|
|
862
|
|
863 Let's start with an example: >
|
|
864
|
|
865 :try
|
|
866 : read ~/templates/pascal.tmpl
|
|
867 :catch /E484:/
|
|
868 : echo "Sorry, the Pascal template file cannot be found."
|
|
869 :endtry
|
|
870
|
|
871 The ":read" command will fail if the file does not exist. Instead of
|
|
872 generating an error message, this code catches the error and gives the user a
|
|
873 nice message instead.
|
|
874
|
|
875 For the commands in between ":try" and ":endtry" errors are turned into
|
|
876 exceptions. An exception is a string. In the case of an error the string
|
|
877 contains the error message. And every error message has a number. In this
|
|
878 case, the error we catch contains "E484:". This number is guaranteed to stay
|
|
879 the same (the text may change, e.g., it may be translated).
|
|
880
|
|
881 When the ":read" command causes another error, the pattern "E484:" will not
|
|
882 match in it. Thus this exception will not be caught and result in the usual
|
|
883 error message.
|
|
884
|
|
885 You might be tempted to do this: >
|
|
886
|
|
887 :try
|
|
888 : read ~/templates/pascal.tmpl
|
|
889 :catch
|
|
890 : echo "Sorry, the Pascal template file cannot be found."
|
|
891 :endtry
|
|
892
|
|
893 This means all errors are caught. But then you will not see errors that are
|
|
894 useful, such as "E21: Cannot make changes, 'modifiable' is off".
|
|
895
|
|
896 Another useful mechanism is the ":finally" command: >
|
|
897
|
|
898 :let tmp = tempname()
|
|
899 :try
|
|
900 : exe ".,$write " . tmp
|
|
901 : exe "!filter " . tmp
|
|
902 : .,$delete
|
|
903 : exe "$read " . tmp
|
|
904 :finally
|
|
905 : call delete(tmp)
|
|
906 :endtry
|
|
907
|
|
908 This filters the lines from the cursor until the end of the file through the
|
|
909 "filter" command, which takes a file name argument. No matter if the
|
|
910 filtering works, something goes wrong in between ":try" and ":finally" or the
|
|
911 user cancels the filtering by pressing CTRL-C, the "call delete(tmp)" is
|
|
912 always executed. This makes sure you don't leave the temporary file behind.
|
|
913
|
|
914 More information about exception handling can be found in the reference
|
|
915 manual: |exception-handling|.
|
|
916
|
|
917 ==============================================================================
|
|
918 *41.9* Various remarks
|
|
919
|
|
920 Here is a summary of items that apply to Vim scripts. They are also mentioned
|
|
921 elsewhere, but form a nice checklist.
|
|
922
|
|
923 The end-of-line character depends on the system. For Unix a single <NL>
|
|
924 character is used. For MS-DOS, Windows, OS/2 and the like, <CR><LF> is used.
|
|
925 This is important when using mappings that end in a <CR>. See |:source_crnl|.
|
|
926
|
|
927
|
|
928 WHITE SPACE
|
|
929
|
|
930 Blank lines are allowed and ignored.
|
|
931
|
|
932 Leading whitespace characters (blanks and TABs) are always ignored. The
|
|
933 whitespaces between parameters (e.g. between the 'set' and the 'cpoptions' in
|
|
934 the example below) are reduced to one blank character and plays the role of a
|
|
935 separator, the whitespaces after the last (visible) character may or may not
|
|
936 be ignored depending on the situation, see below.
|
|
937
|
|
938 For a ":set" command involving the "=" (equal) sign, such as in: >
|
|
939
|
|
940 :set cpoptions =aABceFst
|
|
941
|
|
942 the whitespace immediately before the "=" sign is ignored. But there can be
|
|
943 no whitespace after the "=" sign!
|
|
944
|
|
945 To include a whitespace character in the value of an option, it must be
|
|
946 escaped by a "\" (backslash) as in the following example: >
|
|
947
|
|
948 :set tags=my\ nice\ file
|
|
949
|
|
950 The same example written as >
|
|
951
|
|
952 :set tags=my nice file
|
|
953
|
|
954 will issue an error, because it is interpreted as: >
|
|
955
|
|
956 :set tags=my
|
|
957 :set nice
|
|
958 :set file
|
|
959
|
|
960
|
|
961 COMMENTS
|
|
962
|
|
963 The character " (the double quote mark) starts a comment. Everything after
|
|
964 and including this character until the end-of-line is considered a comment and
|
|
965 is ignored, except for commands that don't consider comments, as shown in
|
|
966 examples below. A comment can start on any character position on the line.
|
|
967
|
|
968 There is a little "catch" with comments for some commands. Examples: >
|
|
969
|
|
970 :abbrev dev development " shorthand
|
|
971 :map <F3> o#include " insert include
|
|
972 :execute cmd " do it
|
|
973 :!ls *.c " list C files
|
|
974
|
|
975 The abbreviation 'dev' will be expanded to 'development " shorthand'. The
|
|
976 mapping of <F3> will actually be the whole line after the 'o# ....' including
|
|
977 the '" insert include'. The "execute" command will give an error. The "!"
|
|
978 command will send everything after it to the shell, causing an error for an
|
|
979 unmatched '"' character.
|
|
980 There can be no comment after ":map", ":abbreviate", ":execute" and "!"
|
|
981 commands (there are a few more commands with this restriction). For the
|
|
982 ":map", ":abbreviate" and ":execute" commands there is a trick: >
|
|
983
|
|
984 :abbrev dev development|" shorthand
|
|
985 :map <F3> o#include|" insert include
|
|
986 :execute cmd |" do it
|
|
987
|
|
988 With the '|' character the command is separated from the next one. And that
|
|
989 next command is only a comment.
|
|
990
|
|
991 Notice that there is no white space before the '|' in the abbreviation and
|
|
992 mapping. For these commands, any character until the end-of-line or '|' is
|
|
993 included. As a consequence of this behavior, you don't always see that
|
|
994 trailing whitespace is included: >
|
|
995
|
|
996 :map <F4> o#include
|
|
997
|
|
998 To avoid these problems, you can set the 'list' option when editing vimrc
|
|
999 files.
|
|
1000
|
|
1001
|
|
1002 PITFALLS
|
|
1003
|
|
1004 Even bigger problem arises in the following example: >
|
|
1005
|
|
1006 :map ,ab o#include
|
|
1007 :unmap ,ab
|
|
1008
|
|
1009 Here the unmap command will not work, because it tries to unmap ",ab ". This
|
|
1010 does not exist as a mapped sequence. An error will be issued, which is very
|
|
1011 hard to identify, because the ending whitespace character in ":unmap ,ab " is
|
|
1012 not visible.
|
|
1013
|
|
1014 And this is the same as what happens when one uses a comment after an 'unmap'
|
|
1015 command: >
|
|
1016
|
|
1017 :unmap ,ab " comment
|
|
1018
|
|
1019 Here the comment part will be ignored. However, Vim will try to unmap
|
|
1020 ',ab ', which does not exist. Rewrite it as: >
|
|
1021
|
|
1022 :unmap ,ab| " comment
|
|
1023
|
|
1024
|
|
1025 RESTORING THE VIEW
|
|
1026
|
|
1027 Sometimes you want to make a change and go back to where cursor was.
|
|
1028 Restoring the relative position would also be nice, so that the same line
|
|
1029 appears at the top of the window.
|
|
1030 This example yanks the current line, puts it above the first line in the
|
|
1031 file and then restores the view: >
|
|
1032
|
|
1033 map ,p ma"aYHmbgg"aP`bzt`a
|
|
1034
|
|
1035 What this does: >
|
|
1036 ma"aYHmbgg"aP`bzt`a
|
|
1037 < ma set mark a at cursor position
|
|
1038 "aY yank current line into register a
|
|
1039 Hmb go to top line in window and set mark b there
|
|
1040 gg go to first line in file
|
|
1041 "aP put the yanked line above it
|
|
1042 `b go back to top line in display
|
|
1043 zt position the text in the window as before
|
|
1044 `a go back to saved cursor position
|
|
1045
|
|
1046
|
|
1047 PACKAGING
|
|
1048
|
|
1049 To avoid your function names to interfere with functions that you get from
|
|
1050 others, use this scheme:
|
|
1051 - Prepend a unique string before each function name. I often use an
|
|
1052 abbreviation. For example, "OW_" is used for the option window functions.
|
|
1053 - Put the definition of your functions together in a file. Set a global
|
|
1054 variable to indicate that the functions have been loaded. When sourcing the
|
|
1055 file again, first unload the functions.
|
|
1056 Example: >
|
|
1057
|
|
1058 " This is the XXX package
|
|
1059
|
|
1060 if exists("XXX_loaded")
|
|
1061 delfun XXX_one
|
|
1062 delfun XXX_two
|
|
1063 endif
|
|
1064
|
|
1065 function XXX_one(a)
|
|
1066 ... body of function ...
|
|
1067 endfun
|
|
1068
|
|
1069 function XXX_two(b)
|
|
1070 ... body of function ...
|
|
1071 endfun
|
|
1072
|
|
1073 let XXX_loaded = 1
|
|
1074
|
|
1075 ==============================================================================
|
|
1076 *41.10* Writing a plugin *write-plugin*
|
|
1077
|
|
1078 You can write a Vim script in such a way that many people can use it. This is
|
|
1079 called a plugin. Vim users can drop your script in their plugin directory and
|
|
1080 use its features right away |add-plugin|.
|
|
1081
|
|
1082 There are actually two types of plugins:
|
|
1083
|
|
1084 global plugins: For all types of files.
|
|
1085 filetype plugins: Only for files of a specific type.
|
|
1086
|
|
1087 In this section the first type is explained. Most items are also relevant for
|
|
1088 writing filetype plugins. The specifics for filetype plugins are in the next
|
|
1089 section |write-filetype-plugin|.
|
|
1090
|
|
1091
|
|
1092 NAME
|
|
1093
|
|
1094 First of all you must choose a name for your plugin. The features provided
|
|
1095 by the plugin should be clear from its name. And it should be unlikely that
|
|
1096 someone else writes a plugin with the same name but which does something
|
|
1097 different. And please limit the name to 8 characters, to avoid problems on
|
|
1098 old Windows systems.
|
|
1099
|
|
1100 A script that corrects typing mistakes could be called "typecorr.vim". We
|
|
1101 will use it here as an example.
|
|
1102
|
|
1103 For the plugin to work for everybody, it should follow a few guidelines. This
|
|
1104 will be explained step-by-step. The complete example plugin is at the end.
|
|
1105
|
|
1106
|
|
1107 BODY
|
|
1108
|
|
1109 Let's start with the body of the plugin, the lines that do the actual work: >
|
|
1110
|
|
1111 14 iabbrev teh the
|
|
1112 15 iabbrev otehr other
|
|
1113 16 iabbrev wnat want
|
|
1114 17 iabbrev synchronisation
|
|
1115 18 \ synchronization
|
|
1116 19 let s:count = 4
|
|
1117
|
|
1118 The actual list should be much longer, of course.
|
|
1119
|
|
1120 The line numbers have only been added to explain a few things, don't put them
|
|
1121 in your plugin file!
|
|
1122
|
|
1123
|
|
1124 HEADER
|
|
1125
|
|
1126 You will probably add new corrections to the plugin and soon have several
|
|
1127 versions laying around. And when distributing this file, people will want to
|
|
1128 know who wrote this wonderful plugin and where they can send remarks.
|
|
1129 Therefore, put a header at the top of your plugin: >
|
|
1130
|
|
1131 1 " Vim global plugin for correcting typing mistakes
|
|
1132 2 " Last Change: 2000 Oct 15
|
|
1133 3 " Maintainer: Bram Moolenaar <Bram@vim.org>
|
|
1134
|
|
1135 About copyright and licensing: Since plugins are very useful and it's hardly
|
|
1136 worth restricting their distribution, please consider making your plugin
|
|
1137 either public domain or use the Vim |license|. A short note about this near
|
|
1138 the top of the plugin should be sufficient. Example: >
|
|
1139
|
|
1140 4 " License: This file is placed in the public domain.
|
|
1141
|
|
1142
|
|
1143 LINE CONTINUATION, AVOIDING SIDE EFFECTS *use-cpo-save*
|
|
1144
|
|
1145 In line 18 above, the line-continuation mechanism is used |line-continuation|.
|
|
1146 Users with 'compatible' set will run into trouble here, they will get an error
|
|
1147 message. We can't just reset 'compatible', because that has a lot of side
|
|
1148 effects. To avoid this, we will set the 'cpoptions' option to its Vim default
|
|
1149 value and restore it later. That will allow the use of line-continuation and
|
|
1150 make the script work for most people. It is done like this: >
|
|
1151
|
|
1152 11 let s:save_cpo = &cpo
|
|
1153 12 set cpo&vim
|
|
1154 ..
|
|
1155 42 let &cpo = s:save_cpo
|
|
1156
|
|
1157 We first store the old value of 'cpoptions' in the s:save_cpo variable. At
|
|
1158 the end of the plugin this value is restored.
|
|
1159
|
|
1160 Notice that a script-local variable is used |s:var|. A global variable could
|
|
1161 already be in use for something else. Always use script-local variables for
|
|
1162 things that are only used in the script.
|
|
1163
|
|
1164
|
|
1165 NOT LOADING
|
|
1166
|
|
1167 It's possible that a user doesn't always want to load this plugin. Or the
|
|
1168 system administrator has dropped it in the system-wide plugin directory, but a
|
|
1169 user has his own plugin he wants to use. Then the user must have a chance to
|
|
1170 disable loading this specific plugin. This will make it possible: >
|
|
1171
|
|
1172 6 if exists("loaded_typecorr")
|
|
1173 7 finish
|
|
1174 8 endif
|
|
1175 9 let loaded_typecorr = 1
|
|
1176
|
|
1177 This also avoids that when the script is loaded twice it would cause error
|
|
1178 messages for redefining functions and cause trouble for autocommands that are
|
|
1179 added twice.
|
|
1180
|
|
1181
|
|
1182 MAPPING
|
|
1183
|
|
1184 Now let's make the plugin more interesting: We will add a mapping that adds a
|
|
1185 correction for the word under the cursor. We could just pick a key sequence
|
|
1186 for this mapping, but the user might already use it for something else. To
|
|
1187 allow the user to define which keys a mapping in a plugin uses, the <Leader>
|
|
1188 item can be used: >
|
|
1189
|
|
1190 22 map <unique> <Leader>a <Plug>TypecorrAdd
|
|
1191
|
|
1192 The "<Plug>TypecorrAdd" thing will do the work, more about that further on.
|
|
1193
|
|
1194 The user can set the "mapleader" variable to the key sequence that he wants
|
|
1195 this mapping to start with. Thus if the user has done: >
|
|
1196
|
|
1197 let mapleader = "_"
|
|
1198
|
|
1199 the mapping will define "_a". If the user didn't do this, the default value
|
|
1200 will be used, which is a backslash. Then a map for "\a" will be defined.
|
|
1201
|
|
1202 Note that <unique> is used, this will cause an error message if the mapping
|
|
1203 already happened to exist. |:map-<unique>|
|
|
1204
|
|
1205 But what if the user wants to define his own key sequence? We can allow that
|
|
1206 with this mechanism: >
|
|
1207
|
|
1208 21 if !hasmapto('<Plug>TypecorrAdd')
|
|
1209 22 map <unique> <Leader>a <Plug>TypecorrAdd
|
|
1210 23 endif
|
|
1211
|
|
1212 This checks if a mapping to "<Plug>TypecorrAdd" already exists, and only
|
|
1213 defines the mapping from "<Leader>a" if it doesn't. The user then has a
|
|
1214 chance of putting this in his vimrc file: >
|
|
1215
|
|
1216 map ,c <Plug>TypecorrAdd
|
|
1217
|
|
1218 Then the mapped key sequence will be ",c" instead of "_a" or "\a".
|
|
1219
|
|
1220
|
|
1221 PIECES
|
|
1222
|
|
1223 If a script gets longer, you often want to break up the work in pieces. You
|
|
1224 can use functions or mappings for this. But you don't want these functions
|
|
1225 and mappings to interfere with the ones from other scripts. For example, you
|
|
1226 could define a function Add(), but another script could try to define the same
|
|
1227 function. To avoid this, we define the function local to the script by
|
|
1228 prepending it with "s:".
|
|
1229
|
|
1230 We will define a function that adds a new typing correction: >
|
|
1231
|
|
1232 30 function s:Add(from, correct)
|
|
1233 31 let to = input("type the correction for " . a:from . ": ")
|
|
1234 32 exe ":iabbrev " . a:from . " " . to
|
|
1235 ..
|
|
1236 36 endfunction
|
|
1237
|
|
1238 Now we can call the function s:Add() from within this script. If another
|
|
1239 script also defines s:Add(), it will be local to that script and can only
|
|
1240 be called from the script it was defined in. There can also be a global Add()
|
|
1241 function (without the "s:"), which is again another function.
|
|
1242
|
|
1243 <SID> can be used with mappings. It generates a script ID, which identifies
|
|
1244 the current script. In our typing correction plugin we use it like this: >
|
|
1245
|
|
1246 24 noremap <unique> <script> <Plug>TypecorrAdd <SID>Add
|
|
1247 ..
|
|
1248 28 noremap <SID>Add :call <SID>Add(expand("<cword>"), 1)<CR>
|
|
1249
|
|
1250 Thus when a user types "\a", this sequence is invoked: >
|
|
1251
|
|
1252 \a -> <Plug>TypecorrAdd -> <SID>Add -> :call <SID>Add()
|
|
1253
|
|
1254 If another script would also map <SID>Add, it would get another script ID and
|
|
1255 thus define another mapping.
|
|
1256
|
|
1257 Note that instead of s:Add() we use <SID>Add() here. That is because the
|
|
1258 mapping is typed by the user, thus outside of the script. The <SID> is
|
|
1259 translated to the script ID, so that Vim knows in which script to look for
|
|
1260 the Add() function.
|
|
1261
|
|
1262 This is a bit complicated, but it's required for the plugin to work together
|
|
1263 with other plugins. The basic rule is that you use <SID>Add() in mappings and
|
|
1264 s:Add() in other places (the script itself, autocommands, user commands).
|
|
1265
|
|
1266 We can also add a menu entry to do the same as the mapping: >
|
|
1267
|
|
1268 26 noremenu <script> Plugin.Add\ Correction <SID>Add
|
|
1269
|
|
1270 The "Plugin" menu is recommended for adding menu items for plugins. In this
|
|
1271 case only one item is used. When adding more items, creating a submenu is
|
|
1272 recommended. For example, "Plugin.CVS" could be used for a plugin that offers
|
|
1273 CVS operations "Plugin.CVS.checkin", "Plugin.CVS.checkout", etc.
|
|
1274
|
|
1275 Note that in line 28 ":noremap" is used to avoid that any other mappings cause
|
|
1276 trouble. Someone may have remapped ":call", for example. In line 24 we also
|
|
1277 use ":noremap", but we do want "<SID>Add" to be remapped. This is why
|
|
1278 "<script>" is used here. This only allows mappings which are local to the
|
|
1279 script. |:map-<script>| The same is done in line 26 for ":noremenu".
|
|
1280 |:menu-<script>|
|
|
1281
|
|
1282
|
|
1283 <SID> AND <Plug> *using-<Plug>*
|
|
1284
|
|
1285 Both <SID> and <Plug> are used to avoid that mappings of typed keys interfere
|
|
1286 with mappings that are only to be used from other mappings. Note the
|
|
1287 difference between using <SID> and <Plug>:
|
|
1288
|
|
1289 <Plug> is visible outside of the script. It is used for mappings which the
|
|
1290 user might want to map a key sequence to. <Plug> is a special code
|
|
1291 that a typed key will never produce.
|
|
1292 To make it very unlikely that other plugins use the same sequence of
|
|
1293 characters, use this structure: <Plug> scriptname mapname
|
|
1294 In our example the scriptname is "Typecorr" and the mapname is "Add".
|
|
1295 This results in "<Plug>TypecorrAdd". Only the first character of
|
|
1296 scriptname and mapname is uppercase, so that we can see where mapname
|
|
1297 starts.
|
|
1298
|
|
1299 <SID> is the script ID, a unique identifier for a script.
|
|
1300 Internally Vim translates <SID> to "<SNR>123_", where "123" can be any
|
|
1301 number. Thus a function "<SID>Add()" will have a name "<SNR>11_Add()"
|
|
1302 in one script, and "<SNR>22_Add()" in another. You can see this if
|
|
1303 you use the ":function" command to get a list of functions. The
|
|
1304 translation of <SID> in mappings is exactly the same, that's how you
|
|
1305 can call a script-local function from a mapping.
|
|
1306
|
|
1307
|
|
1308 USER COMMAND
|
|
1309
|
|
1310 Now let's add a user command to add a correction: >
|
|
1311
|
|
1312 38 if !exists(":Correct")
|
|
1313 39 command -nargs=1 Correct :call s:Add(<q-args>, 0)
|
|
1314 40 endif
|
|
1315
|
|
1316 The user command is defined only if no command with the same name already
|
|
1317 exists. Otherwise we would get an error here. Overriding the existing user
|
|
1318 command with ":command!" is not a good idea, this would probably make the user
|
|
1319 wonder why the command he defined himself doesn't work. |:command|
|
|
1320
|
|
1321
|
|
1322 SCRIPT VARIABLES
|
|
1323
|
|
1324 When a variable starts with "s:" it is a script variable. It can only be used
|
|
1325 inside a script. Outside the script it's not visible. This avoids trouble
|
|
1326 with using the same variable name in different scripts. The variables will be
|
|
1327 kept as long as Vim is running. And the same variables are used when sourcing
|
|
1328 the same script again. |s:var|
|
|
1329
|
|
1330 The fun is that these variables can also be used in functions, autocommands
|
|
1331 and user commands that are defined in the script. In our example we can add
|
|
1332 a few lines to count the number of corrections: >
|
|
1333
|
|
1334 19 let s:count = 4
|
|
1335 ..
|
|
1336 30 function s:Add(from, correct)
|
|
1337 ..
|
|
1338 34 let s:count = s:count + 1
|
|
1339 35 echo s:count . " corrections now"
|
|
1340 36 endfunction
|
|
1341
|
|
1342 First s:count is initialized to 4 in the script itself. When later the
|
|
1343 s:Add() function is called, it increments s:count. It doesn't matter from
|
|
1344 where the function was called, since it has been defined in the script, it
|
|
1345 will use the local variables from this script.
|
|
1346
|
|
1347
|
|
1348 THE RESULT
|
|
1349
|
|
1350 Here is the resulting complete example: >
|
|
1351
|
|
1352 1 " Vim global plugin for correcting typing mistakes
|
|
1353 2 " Last Change: 2000 Oct 15
|
|
1354 3 " Maintainer: Bram Moolenaar <Bram@vim.org>
|
|
1355 4 " License: This file is placed in the public domain.
|
|
1356 5
|
|
1357 6 if exists("loaded_typecorr")
|
|
1358 7 finish
|
|
1359 8 endif
|
|
1360 9 let loaded_typecorr = 1
|
|
1361 10
|
|
1362 11 let s:save_cpo = &cpo
|
|
1363 12 set cpo&vim
|
|
1364 13
|
|
1365 14 iabbrev teh the
|
|
1366 15 iabbrev otehr other
|
|
1367 16 iabbrev wnat want
|
|
1368 17 iabbrev synchronisation
|
|
1369 18 \ synchronization
|
|
1370 19 let s:count = 4
|
|
1371 20
|
|
1372 21 if !hasmapto('<Plug>TypecorrAdd')
|
|
1373 22 map <unique> <Leader>a <Plug>TypecorrAdd
|
|
1374 23 endif
|
|
1375 24 noremap <unique> <script> <Plug>TypecorrAdd <SID>Add
|
|
1376 25
|
|
1377 26 noremenu <script> Plugin.Add\ Correction <SID>Add
|
|
1378 27
|
|
1379 28 noremap <SID>Add :call <SID>Add(expand("<cword>"), 1)<CR>
|
|
1380 29
|
|
1381 30 function s:Add(from, correct)
|
|
1382 31 let to = input("type the correction for " . a:from . ": ")
|
|
1383 32 exe ":iabbrev " . a:from . " " . to
|
|
1384 33 if a:correct | exe "normal viws\<C-R>\" \b\e" | endif
|
|
1385 34 let s:count = s:count + 1
|
|
1386 35 echo s:count . " corrections now"
|
|
1387 36 endfunction
|
|
1388 37
|
|
1389 38 if !exists(":Correct")
|
|
1390 39 command -nargs=1 Correct :call s:Add(<q-args>, 0)
|
|
1391 40 endif
|
|
1392 41
|
|
1393 42 let &cpo = s:save_cpo
|
|
1394
|
|
1395 Line 33 wasn't explained yet. It applies the new correction to the word under
|
|
1396 the cursor. The |:normal| command is used to use the new abbreviation. Note
|
|
1397 that mappings and abbreviations are expanded here, even though the function
|
|
1398 was called from a mapping defined with ":noremap".
|
|
1399
|
|
1400 Using "unix" for the 'fileformat' option is recommended. The Vim scripts will
|
|
1401 then work everywhere. Scripts with 'fileformat' set to "dos" do not work on
|
|
1402 Unix. Also see |:source_crnl|. To be sure it is set right, do this before
|
|
1403 writing the file: >
|
|
1404
|
|
1405 :set fileformat=unix
|
|
1406
|
|
1407
|
|
1408 DOCUMENTATION *write-local-help*
|
|
1409
|
|
1410 It's a good idea to also write some documentation for your plugin. Especially
|
|
1411 when its behavior can be changed by the user. See |add-local-help| for how
|
|
1412 they are installed.
|
|
1413
|
|
1414 Here is a simple example for a plugin help file, called "typecorr.txt": >
|
|
1415
|
|
1416 1 *typecorr.txt* Plugin for correcting typing mistakes
|
|
1417 2
|
|
1418 3 If you make typing mistakes, this plugin will have them corrected
|
|
1419 4 automatically.
|
|
1420 5
|
|
1421 6 There are currently only a few corrections. Add your own if you like.
|
|
1422 7
|
|
1423 8 Mappings:
|
|
1424 9 <Leader>a or <Plug>TypecorrAdd
|
|
1425 10 Add a correction for the word under the cursor.
|
|
1426 11
|
|
1427 12 Commands:
|
|
1428 13 :Correct {word}
|
|
1429 14 Add a correction for {word}.
|
|
1430 15
|
|
1431 16 *typecorr-settings*
|
|
1432 17 This plugin doesn't have any settings.
|
|
1433
|
|
1434 The first line is actually the only one for which the format matters. It will
|
|
1435 be extracted from the help file to be put in the "LOCAL ADDITIONS:" section of
|
|
1436 help.txt |local-additions|. The first "*" must be in the first column of the
|
|
1437 first line. After adding your help file do ":help" and check that the entries
|
|
1438 line up nicely.
|
|
1439
|
|
1440 You can add more tags inside ** in your help file. But be careful not to use
|
|
1441 existing help tags. You would probably use the name of your plugin in most of
|
|
1442 them, like "typecorr-settings" in the example.
|
|
1443
|
|
1444 Using references to other parts of the help in || is recommended. This makes
|
|
1445 it easy for the user to find associated help.
|
|
1446
|
|
1447
|
|
1448 FILETYPE DETECTION *plugin-filetype*
|
|
1449
|
|
1450 If your filetype is not already detected by Vim, you should create a filetype
|
|
1451 detection snippet in a separate file. It is usually in the form of an
|
|
1452 autocommand that sets the filetype when the file name matches a pattern.
|
|
1453 Example: >
|
|
1454
|
|
1455 au BufNewFile,BufRead *.foo set filetype=foofoo
|
|
1456
|
|
1457 Write this single-line file as "ftdetect/foofoo.vim" in the first directory
|
|
1458 that appears in 'runtimepath'. For Unix that would be
|
|
1459 "~/.vim/ftdetect/foofoo.vim". The convention is to use the name of the
|
|
1460 filetype for the script name.
|
|
1461
|
|
1462 You can make more complicated checks if you like, for example to inspect the
|
|
1463 contents of the file to recognize the language. Also see |new-filetype|.
|
|
1464
|
|
1465
|
|
1466 SUMMARY *plugin-special*
|
|
1467
|
|
1468 Summary of special things to use in a plugin:
|
|
1469
|
|
1470 s:name Variables local to the script.
|
|
1471
|
|
1472 <SID> Script-ID, used for mappings and functions local to
|
|
1473 the script.
|
|
1474
|
|
1475 hasmapto() Function to test if the user already defined a mapping
|
|
1476 for functionality the script offers.
|
|
1477
|
|
1478 <Leader> Value of "mapleader", which the user defines as the
|
|
1479 keys that plugin mappings start with.
|
|
1480
|
|
1481 :map <unique> Give a warning if a mapping already exists.
|
|
1482
|
|
1483 :noremap <script> Use only mappings local to the script, not global
|
|
1484 mappings.
|
|
1485
|
|
1486 exists(":Cmd") Check if a user command already exists.
|
|
1487
|
|
1488 ==============================================================================
|
|
1489 *41.11* Writing a filetype plugin *write-filetype-plugin* *ftplugin*
|
|
1490
|
|
1491 A filetype plugin is like a global plugin, except that it sets options and
|
|
1492 defines mappings for the current buffer only. See |add-filetype-plugin| for
|
|
1493 how this type of plugin is used.
|
|
1494
|
|
1495 First read the section on global plugins above |41.10|. All that is said there
|
|
1496 also applies to filetype plugins. There are a few extras, which are explained
|
|
1497 here. The essential thing is that a filetype plugin should only have an
|
|
1498 effect on the current buffer.
|
|
1499
|
|
1500
|
|
1501 DISABLING
|
|
1502
|
|
1503 If you are writing a filetype plugin to be used by many people, they need a
|
|
1504 chance to disable loading it. Put this at the top of the plugin: >
|
|
1505
|
|
1506 " Only do this when not done yet for this buffer
|
|
1507 if exists("b:did_ftplugin")
|
|
1508 finish
|
|
1509 endif
|
|
1510 let b:did_ftplugin = 1
|
|
1511
|
|
1512 This also needs to be used to avoid that the same plugin is executed twice for
|
|
1513 the same buffer (happens when using an ":edit" command without arguments).
|
|
1514
|
|
1515 Now users can disable loading the default plugin completely by making a
|
|
1516 filetype plugin with only this line: >
|
|
1517
|
|
1518 let b:did_ftplugin = 1
|
|
1519
|
|
1520 This does require that the filetype plugin directory comes before $VIMRUNTIME
|
|
1521 in 'runtimepath'!
|
|
1522
|
|
1523 If you do want to use the default plugin, but overrule one of the settings,
|
|
1524 you can write the different setting in a script: >
|
|
1525
|
|
1526 setlocal textwidth=70
|
|
1527
|
|
1528 Now write this in the "after" directory, so that it gets sourced after the
|
|
1529 distributed "vim.vim" ftplugin |after-directory|. For Unix this would be
|
|
1530 "~/.vim/after/ftplugin/vim.vim". Note that the default plugin will have set
|
|
1531 "b:did_ftplugin", but it is ignored here.
|
|
1532
|
|
1533
|
|
1534 OPTIONS
|
|
1535
|
|
1536 To make sure the filetype plugin only affects the current buffer use the >
|
|
1537
|
|
1538 :setlocal
|
|
1539
|
|
1540 command to set options. And only set options which are local to a buffer (see
|
|
1541 the help for the option to check that). When using |:setlocal| for global
|
|
1542 options or options local to a window, the value will change for many buffers,
|
|
1543 and that is not what a filetype plugin should do.
|
|
1544
|
|
1545 When an option has a value that is a list of flags or items, consider using
|
|
1546 "+=" and "-=" to keep the existing value. Be aware that the user may have
|
|
1547 changed an option value already. First resetting to the default value and
|
|
1548 then changing it often a good idea. Example: >
|
|
1549
|
|
1550 :setlocal formatoptions& formatoptions+=ro
|
|
1551
|
|
1552
|
|
1553 MAPPINGS
|
|
1554
|
|
1555 To make sure mappings will only work in the current buffer use the >
|
|
1556
|
|
1557 :map <buffer>
|
|
1558
|
|
1559 command. This needs to be combined with the two-step mapping explained above.
|
|
1560 An example of how to define functionality in a filetype plugin: >
|
|
1561
|
|
1562 if !hasmapto('<Plug>JavaImport')
|
|
1563 map <buffer> <unique> <LocalLeader>i <Plug>JavaImport
|
|
1564 endif
|
|
1565 noremap <buffer> <unique> <Plug>JavaImport oimport ""<Left><Esc>
|
|
1566
|
|
1567 |hasmapto()| is used to check if the user has already defined a map to
|
|
1568 <Plug>JavaImport. If not, then the filetype plugin defines the default
|
|
1569 mapping. This starts with |<LocalLeader>|, which allows the user to select
|
|
1570 the key(s) he wants filetype plugin mappings to start with. The default is a
|
|
1571 backslash.
|
|
1572 "<unique>" is used to give an error message if the mapping already exists or
|
|
1573 overlaps with an existing mapping.
|
|
1574 |:noremap| is used to avoid that any other mappings that the user has defined
|
|
1575 interferes. You might want to use ":noremap <script>" to allow remapping
|
|
1576 mappings defined in this script that start with <SID>.
|
|
1577
|
|
1578 The user must have a chance to disable the mappings in a filetype plugin,
|
|
1579 without disabling everything. Here is an example of how this is done for a
|
|
1580 plugin for the mail filetype: >
|
|
1581
|
|
1582 " Add mappings, unless the user didn't want this.
|
|
1583 if !exists("no_plugin_maps") && !exists("no_mail_maps")
|
|
1584 " Quote text by inserting "> "
|
|
1585 if !hasmapto('<Plug>MailQuote')
|
|
1586 vmap <buffer> <LocalLeader>q <Plug>MailQuote
|
|
1587 nmap <buffer> <LocalLeader>q <Plug>MailQuote
|
|
1588 endif
|
|
1589 vnoremap <buffer> <Plug>MailQuote :s/^/> /<CR>
|
|
1590 nnoremap <buffer> <Plug>MailQuote :.,$s/^/> /<CR>
|
|
1591 endif
|
|
1592
|
|
1593 Two global variables are used:
|
|
1594 no_plugin_maps disables mappings for all filetype plugins
|
|
1595 no_mail_maps disables mappings for a specific filetype
|
|
1596
|
|
1597
|
|
1598 USER COMMANDS
|
|
1599
|
|
1600 To add a user command for a specific file type, so that it can only be used in
|
|
1601 one buffer, use the "-buffer" argument to |:command|. Example: >
|
|
1602
|
|
1603 :command -buffer Make make %:r.s
|
|
1604
|
|
1605
|
|
1606 VARIABLES
|
|
1607
|
|
1608 A filetype plugin will be sourced for each buffer of the type it's for. Local
|
|
1609 script variables |s:var| will be shared between all invocations. Use local
|
|
1610 buffer variables |b:var| if you want a variable specifically for one buffer.
|
|
1611
|
|
1612
|
|
1613 FUNCTIONS
|
|
1614
|
|
1615 When defining a function, this only needs to be done once. But the filetype
|
|
1616 plugin will be sourced every time a file with this filetype will be opened.
|
|
1617 This construct make sure the function is only defined once: >
|
|
1618
|
|
1619 :if !exists("*s:Func")
|
|
1620 : function s:Func(arg)
|
|
1621 : ...
|
|
1622 : endfunction
|
|
1623 :endif
|
|
1624 <
|
|
1625
|
|
1626 UNDO *undo_ftplugin*
|
|
1627
|
|
1628 When the user does ":setfiletype xyz" the effect of the previous filetype
|
|
1629 should be undone. Set the b:undo_ftplugin variable to the commands that will
|
|
1630 undo the settings in your filetype plugin. Example: >
|
|
1631
|
|
1632 let b:undo_ftplugin = "setlocal fo< com< tw< commentstring<"
|
|
1633 \ . "| unlet b:match_ignorecase b:match_words b:match_skip"
|
|
1634
|
|
1635 Using ":setlocal" with "<" after the option name resets the option to its
|
|
1636 global value. That is mostly the best way to reset the option value.
|
|
1637
|
|
1638 This does require removing the "C" flag from 'cpoptions' to allow line
|
|
1639 continuation, as mentioned above |use-cpo-save|.
|
|
1640
|
|
1641
|
|
1642 FILE NAME
|
|
1643
|
|
1644 The filetype must be included in the file name |ftplugin-name|. Use one of
|
|
1645 these three forms:
|
|
1646
|
|
1647 .../ftplugin/stuff.vim
|
|
1648 .../ftplugin/stuff_foo.vim
|
|
1649 .../ftplugin/stuff/bar.vim
|
|
1650
|
|
1651 "stuff" is the filetype, "foo" and "bar" are arbitrary names.
|
|
1652
|
|
1653
|
|
1654 SUMMARY *ftplugin-special*
|
|
1655
|
|
1656 Summary of special things to use in a filetype plugin:
|
|
1657
|
|
1658 <LocalLeader> Value of "maplocalleader", which the user defines as
|
|
1659 the keys that filetype plugin mappings start with.
|
|
1660
|
|
1661 :map <buffer> Define a mapping local to the buffer.
|
|
1662
|
|
1663 :noremap <script> Only remap mappings defined in this script that start
|
|
1664 with <SID>.
|
|
1665
|
|
1666 :setlocal Set an option for the current buffer only.
|
|
1667
|
|
1668 :command -buffer Define a user command local to the buffer.
|
|
1669
|
|
1670 exists("*s:Func") Check if a function was already defined.
|
|
1671
|
|
1672 Also see |plugin-special|, the special things used for all plugins.
|
|
1673
|
|
1674 ==============================================================================
|
|
1675 *41.12* Writing a compiler plugin *write-compiler-plugin*
|
|
1676
|
|
1677 A compiler plugin sets options for use with a specific compiler. The user can
|
|
1678 load it with the |:compiler| command. The main use is to set the
|
|
1679 'errorformat' and 'makeprg' options.
|
|
1680
|
|
1681 Easiest is to have a look at examples. This command will edit all the default
|
|
1682 compiler plugins: >
|
|
1683
|
|
1684 :next $VIMRUNTIME/compiler/*.vim
|
|
1685
|
|
1686 Use |:next| to go to the next plugin file.
|
|
1687
|
|
1688 There are two special items about these files. First is a mechanism to allow
|
|
1689 a user to overrule or add to the default file. The default files start with: >
|
|
1690
|
|
1691 :if exists("current_compiler")
|
|
1692 : finish
|
|
1693 :endif
|
|
1694 :let current_compiler = "mine"
|
|
1695
|
|
1696 When you write a compiler file and put it in your personal runtime directory
|
|
1697 (e.g., ~/.vim/compiler for Unix), you set the "current_compiler" variable to
|
|
1698 make the default file skip the settings.
|
|
1699
|
|
1700 The second mechanism is to use ":set" for ":compiler!" and ":setlocal" for
|
|
1701 ":compiler". Vim defines the ":CompilerSet" user command for this. However,
|
|
1702 older Vim versions don't, thus your plugin should define it then. This is an
|
|
1703 example: >
|
|
1704
|
|
1705 if exists(":CompilerSet") != 2
|
|
1706 command -nargs=* CompilerSet setlocal <args>
|
|
1707 endif
|
|
1708 CompilerSet errorformat& " use the default 'errorformat'
|
|
1709 CompilerSet makeprg=nmake
|
|
1710
|
|
1711 When you write a compiler plugin for the Vim distribution or for a system-wide
|
|
1712 runtime directory, use the mechanism mentioned above. When
|
|
1713 "current_compiler" was already set by a user plugin nothing will be done.
|
|
1714
|
|
1715 When you write a compiler plugin to overrule settings from a default plugin,
|
|
1716 don't check "current_compiler". This plugin is supposed to be loaded
|
|
1717 last, thus it should be in a directory at the end of 'runtimepath'. For Unix
|
|
1718 that could be ~/.vim/after/compiler.
|
|
1719
|
|
1720 ==============================================================================
|
|
1721
|
|
1722 Next chapter: |usr_42.txt| Add new menus
|
|
1723
|
|
1724 Copyright: see |manual-copyright| vim:tw=78:ts=8:ft=help:norl:
|