-
-
Notifications
You must be signed in to change notification settings - Fork 5.5k
/
go.vim
561 lines (479 loc) · 24.9 KB
/
go.vim
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
" Copyright 2009 The Go Authors. All rights reserved.
" Use of this source code is governed by a BSD-style
" license that can be found in the LICENSE file.
"
" go.vim: Vim syntax file for Go.
" Language: Go
" Maintainer: Billie Cleek <bhcleek@gmail.com>
" Latest Revision: 2024-04-13
" 2024-03-17: - fix goPackageComment highlight (by Vim Project)
" License: BSD-style. See LICENSE file in source repository.
" Repository: https://github.com/fatih/vim-go
" Quit when a (custom) syntax file was already loaded
if exists("b:current_syntax")
finish
endif
let s:keepcpo = &cpo
set cpo&vim
function! s:FoldEnable(...) abort
if a:0 > 0
return index(s:FoldEnable(), a:1) > -1
endif
return get(g:, 'go_fold_enable', ['block', 'import', 'varconst', 'package_comment'])
endfunction
function! s:HighlightArrayWhitespaceError() abort
return get(g:, 'go_highlight_array_whitespace_error', 0)
endfunction
function! s:HighlightChanWhitespaceError() abort
return get(g:, 'go_highlight_chan_whitespace_error', 0)
endfunction
function! s:HighlightExtraTypes() abort
return get(g:, 'go_highlight_extra_types', 0)
endfunction
function! s:HighlightSpaceTabError() abort
return get(g:, 'go_highlight_space_tab_error', 0)
endfunction
function! s:HighlightTrailingWhitespaceError() abort
return get(g:, 'go_highlight_trailing_whitespace_error', 0)
endfunction
function! s:HighlightOperators() abort
return get(g:, 'go_highlight_operators', 0)
endfunction
function! s:HighlightFunctions() abort
return get(g:, 'go_highlight_functions', 0)
endfunction
function! s:HighlightFunctionParameters() abort
return get(g:, 'go_highlight_function_parameters', 0)
endfunction
function! s:HighlightFunctionCalls() abort
return get(g:, 'go_highlight_function_calls', 0)
endfunction
function! s:HighlightFields() abort
return get(g:, 'go_highlight_fields', 0)
endfunction
function! s:HighlightTypes() abort
return get(g:, 'go_highlight_types', 0)
endfunction
function! s:HighlightBuildConstraints() abort
return get(g:, 'go_highlight_build_constraints', 0)
endfunction
function! s:HighlightStringSpellcheck() abort
return get(g:, 'go_highlight_string_spellcheck', 1)
endfunction
function! s:HighlightFormatStrings() abort
return get(g:, 'go_highlight_format_strings', 1)
endfunction
function! s:HighlightGenerateTags() abort
return get(g:, 'go_highlight_generate_tags', 0)
endfunction
function! s:HighlightVariableAssignments() abort
return get(g:, 'go_highlight_variable_assignments', 0)
endfunction
function! s:HighlightVariableDeclarations() abort
return get(g:, 'go_highlight_variable_declarations', 0)
endfunction
syn case match
syn keyword goPackage package
syn keyword goImport import contained
syn keyword goVar var contained
syn keyword goConst const contained
hi def link goPackage Statement
hi def link goImport Statement
hi def link goVar Keyword
hi def link goConst Keyword
hi def link goDeclaration Keyword
" Keywords within functions
syn keyword goStatement defer go goto return break continue fallthrough
syn keyword goConditional if else switch select
syn keyword goLabel case default
syn keyword goRepeat for range
hi def link goStatement Statement
hi def link goConditional Conditional
hi def link goLabel Label
hi def link goRepeat Repeat
" Predefined types
syn keyword goType chan map bool string error any comparable
syn keyword goSignedInts int int8 int16 int32 int64 rune
syn keyword goUnsignedInts byte uint uint8 uint16 uint32 uint64 uintptr
syn keyword goFloats float32 float64
syn keyword goComplexes complex64 complex128
hi def link goType Type
hi def link goSignedInts Type
hi def link goUnsignedInts Type
hi def link goFloats Type
hi def link goComplexes Type
" Predefined functions and values
syn keyword goBuiltins append cap clear close complex copy delete imag len
syn keyword goBuiltins make max min new panic print println real recover
syn keyword goBoolean true false
syn keyword goPredefinedIdentifiers nil iota
hi def link goBuiltins Identifier
hi def link goPredefinedIdentifiers Constant
" Boolean links to Constant by default by vim: goBoolean and goPredefinedIdentifiers
" will be highlighted the same, but having the separate groups allows users to
" have separate highlighting for them if they desire.
hi def link goBoolean Boolean
" Comments; their contents
syn keyword goTodo contained TODO FIXME XXX BUG
syn cluster goCommentGroup contains=goTodo
syn region goComment start="//" end="$" contains=goGenerate,@goCommentGroup,@Spell
if s:FoldEnable('comment')
syn region goComment start="/\*" end="\*/" contains=@goCommentGroup,@Spell fold
syn match goComment "\v(^\s*//.*\n)+" contains=goGenerate,@goCommentGroup,@Spell fold
else
syn region goComment start="/\*" end="\*/" contains=@goCommentGroup,@Spell
endif
hi def link goComment Comment
hi def link goTodo Todo
if s:HighlightGenerateTags()
syn match goGenerateVariables contained /\%(\$GOARCH\|\$GOOS\|\$GOFILE\|\$GOLINE\|\$GOPACKAGE\|\$DOLLAR\)\>/
syn region goGenerate start="^\s*//go:generate" end="$" contains=goGenerateVariables
hi def link goGenerate PreProc
hi def link goGenerateVariables Special
endif
" Go escapes
syn match goEscapeOctal display contained "\\[0-7]\{3}"
syn match goEscapeC display contained +\\[abfnrtv\\'"]+
syn match goEscapeX display contained "\\x\x\{2}"
syn match goEscapeU display contained "\\u\x\{4}"
syn match goEscapeBigU display contained "\\U\x\{8}"
syn match goEscapeError display contained +\\[^0-7xuUabfnrtv\\'"]+
hi def link goEscapeOctal goSpecialString
hi def link goEscapeC goSpecialString
hi def link goEscapeX goSpecialString
hi def link goEscapeU goSpecialString
hi def link goEscapeBigU goSpecialString
hi def link goSpecialString Special
hi def link goEscapeError Error
" Strings and their contents
syn cluster goStringGroup contains=goEscapeOctal,goEscapeC,goEscapeX,goEscapeU,goEscapeBigU,goEscapeError
if s:HighlightStringSpellcheck()
syn region goString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@goStringGroup,@Spell
syn region goRawString start=+`+ end=+`+ contains=@Spell
else
syn region goString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@goStringGroup
syn region goRawString start=+`+ end=+`+
endif
syn match goImportString /^\%(\s\+\|import \)\(\h\w* \)\?\zs"[^"]\+"/ contained containedin=goImport
if s:HighlightFormatStrings()
" [n] notation is valid for specifying explicit argument indexes
" 1. Match a literal % not preceded by a %.
" 2. Match any number of -, #, 0, space, or +
" 3. Match * or [n]* or any number or nothing before a .
" 4. Match * or [n]* or any number or nothing after a .
" 5. Match [n] or nothing before a verb
" 6. Match a formatting verb
syn match goFormatSpecifier /\
\%([^%]\%(%%\)*\)\
\@<=%[-#0 +]*\
\%(\%(\%(\[\d\+\]\)\=\*\)\|\d\+\)\=\
\%(\.\%(\%(\%(\[\d\+\]\)\=\*\)\|\d\+\)\=\)\=\
\%(\[\d\+\]\)\=[vTtbcdoqxXUeEfFgGspw]/ contained containedin=goString,goRawString
hi def link goFormatSpecifier goSpecialString
endif
hi def link goImportString String
hi def link goString String
hi def link goRawString String
" Characters; their contents
syn cluster goCharacterGroup contains=goEscapeOctal,goEscapeC,goEscapeX,goEscapeU,goEscapeBigU
syn region goCharacter start=+'+ skip=+\\\\\|\\'+ end=+'+ contains=@goCharacterGroup
hi def link goCharacter Character
" Regions
syn region goParen start='(' end=')' transparent
if s:FoldEnable('block')
syn region goBlock start="{" end="}" transparent fold
else
syn region goBlock start="{" end="}" transparent
endif
" import
if s:FoldEnable('import')
syn region goImport start='import (' end=')' transparent fold contains=goImport,goImportString,goComment
syn match goImport /^import ()/ transparent fold contains=goImport
else
syn region goImport start='import (' end=')' transparent contains=goImport,goImportString,goComment
syn match goImport /^import ()/ transparent contains=goImport
endif
" var, const
if s:FoldEnable('varconst')
syn region goVar start='var (' end='^\s*)$' transparent fold
\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
syn match goVar /var ()/ transparent fold
\ contains=goVar
syn region goConst start='const (' end='^\s*)$' transparent fold
\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
syn match goConst /const ()/ transparent fold
\ contains=goConst
else
syn region goVar start='var (' end='^\s*)$' transparent
\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
syn match goVar /var ()/ transparent
\ contains=goVar
syn region goConst start='const (' end='^\s*)$' transparent
\ contains=ALLBUT,goParen,goBlock,goFunction,goTypeName,goReceiverType,goReceiverVar,goParamName,goParamType,goSimpleParams,goPointerOperator
syn match goConst /const ()/ transparent
\ contains=goConst
endif
" Single-line var, const, and import.
syn match goSingleDecl /\%(import\|var\|const\) [^(]\@=/ contains=goImport,goVar,goConst
" Integers
syn match goDecimalInt "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)\>"
syn match goHexadecimalInt "\<-\=0[xX]_\?\%(\x\|\x_\x\)\+\>"
syn match goOctalInt "\<-\=0[oO]\?_\?\%(\o\|\o_\o\)\+\>"
syn match goBinaryInt "\<-\=0[bB]_\?\%([01]\|[01]_[01]\)\+\>"
hi def link goDecimalInt Integer
hi def link goDecimalError Error
hi def link goHexadecimalInt Integer
hi def link goHexadecimalError Error
hi def link goOctalInt Integer
hi def link goOctalError Error
hi def link goBinaryInt Integer
hi def link goBinaryError Error
hi def link Integer Number
" Floating point
"float_lit = decimal_float_lit | hex_float_lit .
"
"decimal_float_lit = decimal_digits "." [ decimal_digits ] [ decimal_exponent ] |
" decimal_digits decimal_exponent |
" "." decimal_digits [ decimal_exponent ] .
"decimal_exponent = ( "e" | "E" ) [ "+" | "-" ] decimal_digits .
"
"hex_float_lit = "0" ( "x" | "X" ) hex_mantissa hex_exponent .
"hex_mantissa = [ "_" ] hex_digits "." [ hex_digits ] |
" [ "_" ] hex_digits |
" "." hex_digits .
"hex_exponent = ( "p" | "P" ) [ "+" | "-" ] decimal_digits .
" decimal floats with a decimal point
syn match goFloat "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)\.\%(\%(\%(\d\|\d_\d\)\+\)\=\%([Ee][-+]\=\%(\d\|\d_\d\)\+\)\=\>\)\="
syn match goFloat "\s\zs-\=\.\%(\d\|\d_\d\)\+\%(\%([Ee][-+]\=\%(\d\|\d_\d\)\+\)\>\)\="
" decimal floats without a decimal point
syn match goFloat "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)[Ee][-+]\=\%(\d\|\d_\d\)\+\>"
" hexadecimal floats with a decimal point
syn match goHexadecimalFloat "\<-\=0[xX]\%(_\x\|\x\)\+\.\%(\%(\x\|\x_\x\)\+\)\=\%([Pp][-+]\=\%(\d\|\d_\d\)\+\)\=\>"
syn match goHexadecimalFloat "\<-\=0[xX]\.\%(\x\|\x_\x\)\+\%([Pp][-+]\=\%(\d\|\d_\d\)\+\)\=\>"
" hexadecimal floats without a decimal point
syn match goHexadecimalFloat "\<-\=0[xX]\%(_\x\|\x\)\+[Pp][-+]\=\%(\d\|\d_\d\)\+\>"
hi def link goFloat Float
hi def link goHexadecimalFloat Float
" Imaginary literals
syn match goImaginaryDecimal "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)i\>"
syn match goImaginaryHexadecimal "\<-\=0[xX]_\?\%(\x\|\x_\x\)\+i\>"
syn match goImaginaryOctal "\<-\=0[oO]\?_\?\%(\o\|\o_\o\)\+i\>"
syn match goImaginaryBinary "\<-\=0[bB]_\?\%([01]\|[01]_[01]\)\+i\>"
" imaginary decimal floats with a decimal point
syn match goImaginaryFloat "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)\.\%(\%(\%(\d\|\d_\d\)\+\)\=\%([Ee][-+]\=\%(\d\|\d_\d\)\+\)\=\)\=i\>"
syn match goImaginaryFloat "\s\zs-\=\.\%(\d\|\d_\d\)\+\%([Ee][-+]\=\%(\d\|\d_\d\)\+\)\=i\>"
" imaginary decimal floats without a decimal point
syn match goImaginaryFloat "\<-\=\%(0\|\%(\d\|\d_\d\)\+\)[Ee][-+]\=\%(\d\|\d_\d\)\+i\>"
" imaginary hexadecimal floats with a decimal point
syn match goImaginaryHexadecimalFloat "\<-\=0[xX]\%(_\x\|\x\)\+\.\%(\%(\x\|\x_\x\)\+\)\=\%([Pp][-+]\=\%(\d\|\d_\d\)\+\)\=i\>"
syn match goImaginaryHexadecimalFloat "\<-\=0[xX]\.\%(\x\|\x_\x\)\+\%([Pp][-+]\=\%(\d\|\d_\d\)\+\)\=i\>"
" imaginary hexadecimal floats without a decimal point
syn match goImaginaryHexadecimalFloat "\<-\=0[xX]\%(_\x\|\x\)\+[Pp][-+]\=\%(\d\|\d_\d\)\+i\>"
hi def link goImaginaryDecimal Number
hi def link goImaginaryHexadecimal Number
hi def link goImaginaryOctal Number
hi def link goImaginaryBinary Number
hi def link goImaginaryFloat Float
hi def link goImaginaryHexadecimalFloat Float
" Spaces after "[]"
if s:HighlightArrayWhitespaceError()
syn match goSpaceError display "\%(\[\]\)\@<=\s\+"
endif
" Spacing errors around the 'chan' keyword
if s:HighlightChanWhitespaceError()
" receive-only annotation on chan type
"
" \(\<chan\>\)\@<!<- (only pick arrow when it doesn't come after a chan)
" this prevents picking up 'chan<- chan<-' but not '<- chan'
syn match goSpaceError display "\%(\%(\<chan\>\)\@<!<-\)\@<=\s\+\%(\<chan\>\)\@="
" send-only annotation on chan type
"
" \(<-\)\@<!\<chan\> (only pick chan when it doesn't come after an arrow)
" this prevents picking up '<-chan <-chan' but not 'chan <-'
syn match goSpaceError display "\%(\%(<-\)\@<!\<chan\>\)\@<=\s\+\%(<-\)\@="
" value-ignoring receives in a few contexts
syn match goSpaceError display "\%(\%(^\|[={(,;]\)\s*<-\)\@<=\s\+"
endif
" Extra types commonly seen
if s:HighlightExtraTypes()
syn match goExtraType /\<bytes\.\%(Buffer\)\>/
syn match goExtraType /\<context\.\%(Context\)\>/
syn match goExtraType /\<io\.\%(Reader\|ReadSeeker\|ReadWriter\|ReadCloser\|ReadWriteCloser\|Writer\|WriteCloser\|Seeker\)\>/
syn match goExtraType /\<reflect\.\%(Kind\|Type\|Value\)\>/
syn match goExtraType /\<unsafe\.Pointer\>/
endif
" Space-tab error
if s:HighlightSpaceTabError()
syn match goSpaceError display " \+\t"me=e-1
endif
" Trailing white space error
if s:HighlightTrailingWhitespaceError()
syn match goSpaceError display excludenl "\s\+$"
endif
hi def link goExtraType Type
hi def link goSpaceError Error
" included from: https://github.com/athom/more-colorful.vim/blob/master/after/syntax/go.vim
"
" Comments; their contents
syn keyword goTodo contained NOTE
hi def link goTodo Todo
syn match goVarArgs /\.\.\./
" Operators;
if s:HighlightOperators()
" match single-char operators: - + % < > ! & | ^ * =
" and corresponding two-char operators: -= += %= <= >= != &= |= ^= *= ==
syn match goOperator /[-+%<>!&|^*=]=\?/
" match / and /=
syn match goOperator /\/\%(=\|\ze[^/*]\)/
" match two-char operators: << >> &^
" and corresponding three-char operators: <<= >>= &^=
syn match goOperator /\%(<<\|>>\|&^\)=\?/
" match remaining two-char operators: := && || <- ++ --
syn match goOperator /:=\|||\|<-\|++\|--/
" match ~
syn match goOperator /\~/
" match ...
hi def link goPointerOperator goOperator
hi def link goVarArgs goOperator
endif
hi def link goOperator Operator
" -> type constraint opening bracket
" |-> start non-counting group
" || -> any word character
" || | -> at least one, as many as possible
" || | | -> start non-counting group
" || | | | -> match ~
" || | | | | -> at most once
" || | | | | | -> allow a slice type
" || | | | | | | -> any word character
" || | | | | | | | -> start a non-counting group
" || | | | | | | | | -> that matches word characters and |
" || | | | | | | | | | -> close the non-counting group
" || | | | | | | | | | | -> close the non-counting group
" || | | | | | | | | | | |-> any number of matches
" || | | | | | | | | | | || -> start a non-counting group
" || | | | | | | | | | | || | -> a comma and whitespace
" || | | | | | | | | | | || | | -> at most once
" || | | | | | | | | | | || | | | -> close the non-counting group
" || | | | | | | | | | | || | | | | -> at least one of those non-counting groups, as many as possible
" || | | | | | -------- | | | | || | | | | | -> type constraint closing bracket
" || | | | | || | | | | | || | | | | | |
syn match goTypeParams /\[\%(\w\+\s\+\%(\~\?\%(\[]\)\?\w\%(\w\||\)\)*\%(,\s*\)\?\)\+\]/ nextgroup=goSimpleParams,goDeclType contained
" Functions;
if s:HighlightFunctions() || s:HighlightFunctionParameters()
syn match goDeclaration /\<func\>/ nextgroup=goReceiver,goFunction,goSimpleParams skipwhite skipnl
syn match goReceiverDecl /(\s*\zs\%(\%(\w\+\s\+\)\?\*\?\w\+\%(\[\%(\%(\[\]\)\?\w\+\%(,\s*\)\?\)\+\]\)\?\)\ze\s*)/ contained contains=goReceiverVar,goReceiverType,goPointerOperator
syn match goReceiverVar /\w\+\ze\s\+\%(\w\|\*\)/ nextgroup=goPointerOperator,goReceiverType skipwhite skipnl contained
syn match goPointerOperator /\*/ nextgroup=goReceiverType contained skipwhite skipnl
syn match goFunction /\w\+/ nextgroup=goSimpleParams,goTypeParams contained skipwhite skipnl
syn match goReceiverType /\w\+\%(\[\%(\%(\[\]\)\?\w\+\%(,\s*\)\?\)\+\]\)\?\ze\s*)/ contained
if s:HighlightFunctionParameters()
syn match goSimpleParams /(\%(\w\|\_s\|[*\.\[\],\{\}<>-]\)*)/ contained contains=goParamName,goType nextgroup=goFunctionReturn skipwhite skipnl
syn match goFunctionReturn /(\%(\w\|\_s\|[*\.\[\],\{\}<>-]\)*)/ contained contains=goParamName,goType skipwhite skipnl
syn match goParamName /\w\+\%(\s*,\s*\w\+\)*\ze\s\+\%(\w\|\.\|\*\|\[\)/ contained nextgroup=goParamType skipwhite skipnl
syn match goParamType /\%([^,)]\|\_s\)\+,\?/ contained nextgroup=goParamName skipwhite skipnl
\ contains=goVarArgs,goType,goSignedInts,goUnsignedInts,goFloats,goComplexes,goDeclType,goBlock
hi def link goReceiverVar goParamName
hi def link goParamName Identifier
endif
syn match goReceiver /(\s*\%(\w\+\s\+\)\?\*\?\s*\w\+\%(\[\%(\%(\[\]\)\?\w\+\%(,\s*\)\?\)\+\]\)\?\s*)\ze\s*\w/ contained nextgroup=goFunction contains=goReceiverDecl skipwhite skipnl
else
syn keyword goDeclaration func
endif
hi def link goFunction Function
" Function calls;
if s:HighlightFunctionCalls()
syn match goFunctionCall /\w\+\ze\%(\[\%(\%(\[]\)\?\w\+\(,\s*\)\?\)\+\]\)\?(/ contains=goBuiltins,goDeclaration
endif
hi def link goFunctionCall Type
" Fields;
if s:HighlightFields()
" 1. Match a sequence of word characters coming after a '.'
" 2. Require the following but dont match it: ( \@= see :h E59)
" - The symbols: / - + * % OR
" - The symbols: [] {} <> ) OR
" - The symbols: \n \r space OR
" - The symbols: , : .
" 3. Have the start of highlight (hs) be the start of matched
" pattern (s) offsetted one to the right (+1) (see :h E401)
syn match goField /\.\w\+\
\%(\%([\/\-\+*%]\)\|\
\%([\[\]{}<\>\)]\)\|\
\%([\!=\^|&]\)\|\
\%([\n\r\ ]\)\|\
\%([,\:.]\)\)\@=/hs=s+1
endif
hi def link goField Identifier
" Structs & Interfaces;
if s:HighlightTypes()
syn match goTypeConstructor /\<\w\+{\@=/
syn match goTypeDecl /\<type\>/ nextgroup=goTypeName skipwhite skipnl
syn match goTypeName /\w\+/ contained nextgroup=goDeclType,goTypeParams skipwhite skipnl
syn match goDeclType /\<\%(interface\|struct\)\>/ skipwhite skipnl
hi def link goReceiverType Type
else
syn keyword goDeclType struct interface
syn keyword goDeclaration type
endif
hi def link goTypeConstructor Type
hi def link goTypeName Type
hi def link goTypeDecl Keyword
hi def link goDeclType Keyword
" Variable Assignments
if s:HighlightVariableAssignments()
syn match goVarAssign /\v[_.[:alnum:]]+(,\s*[_.[:alnum:]]+)*\ze(\s*([-^+|^\/%&]|\*|\<\<|\>\>|\&\^)?\=[^=])/
hi def link goVarAssign Special
endif
" Variable Declarations
if s:HighlightVariableDeclarations()
syn match goVarDefs /\v\w+(,\s*\w+)*\ze(\s*:\=)/
hi def link goVarDefs Special
endif
" Build Constraints
if s:HighlightBuildConstraints()
syn match goBuildKeyword display contained "+build\|go:build"
" Highlight the known values of GOOS, GOARCH, and other +build options.
syn keyword goBuildDirectives contained
\ android darwin dragonfly freebsd linux nacl netbsd openbsd plan9
\ solaris windows 386 amd64 amd64p32 arm armbe arm64 arm64be ppc64
\ ppc64le mips mipsle mips64 mips64le mips64p32 mips64p32le ppc
\ s390 s390x sparc sparc64 cgo ignore race
" Other words in the build directive are build tags not listed above, so
" avoid highlighting them as comments by using a matchgroup just for the
" start of the comment.
" The rs=s+2 option lets the \s*+build portion be part of the inner region
" instead of the matchgroup so it will be highlighted as a goBuildKeyword.
syn region goBuildComment matchgroup=goBuildCommentStart
\ start="//\(\s*+build\s\|go:build\)"rs=s+2 end="$"
\ contains=goBuildKeyword,goBuildDirectives
hi def link goBuildCommentStart Comment
hi def link goBuildDirectives Type
hi def link goBuildKeyword PreProc
endif
if s:HighlightBuildConstraints() || s:FoldEnable('package_comment')
" One or more line comments that are followed immediately by a "package"
" declaration are treated like package documentation, so these must be
" matched as comments to avoid looking like working build constraints.
" The he, me, and re options let the "package" itself be highlighted by
" the usual rules.
exe 'syn region goPackageComment start=/\v(\/\/.*\n)+\s*package\s/'
\ . ' end=/\v\n\s*package\s/he=e-8,me=e-8,re=e-8'
\ . ' contains=@goCommentGroup,@Spell'
\ . (s:FoldEnable('package_comment') ? ' fold' : '')
exe 'syn region goPackageComment start=/\v^\s*\/\*.*\n(.*\n)*\s*\*\/\npackage\s/'
\ . ' end=/\v\*\/\n\s*package\s/he=e-8,me=e-8,re=e-8'
\ . ' contains=@goCommentGroup,@Spell'
\ . (s:FoldEnable('package_comment') ? ' fold' : '')
hi def link goPackageComment Comment
endif
" :GoCoverage commands
hi def link goCoverageNormalText Comment
" Search backwards for a global declaration to start processing the syntax.
"syn sync match goSync grouphere NONE /^\(const\|var\|type\|func\)\>/
" There's a bug in the implementation of grouphere. For now, use the
" following as a more expensive/less precise workaround.
syn sync minlines=500
let b:current_syntax = "go"
let &cpo = s:keepcpo
unlet s:keepcpo
" vim: sw=2 sts=2 et