3 " Maintainer: Bram Moolenaar <Bram@vim.org>
4 " Last Change: 2009 Nov 17
6 " Quit when a (custom) syntax file was already loaded
7 if exists("b:current_syntax")
11 " A bunch of useful C keywords
12 syn keyword cStatement goto break return continue asm
13 syn keyword cLabel case default
14 syn keyword cConditional if else switch
15 syn keyword cRepeat while for do
17 syn keyword cTodo contained TODO FIXME XXX
19 " It's easy to accidentally add a space after a backslash that was intended
20 " for line continuation. Some compilers allow it, which makes it
21 " unpredicatable and should be avoided.
22 syn match cBadContinuation contained "\\\s\+$"
24 " cCommentGroup allows adding matches for special things in comments
25 syn cluster cCommentGroup contains=cTodo,cBadContinuation
27 " String and Character constants
28 " Highlight special characters (those which have a backslash) differently
29 syn match cSpecial display contained "\\\(x\x\+\|\o\{1,3}\|.\|$\)"
30 if !exists("c_no_utf")
31 syn match cSpecial display contained "\\\(u\x\{4}\|U\x\{8}\)"
33 if exists("c_no_cformat")
34 syn region cString start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,@Spell
35 " cCppString: same as cString, but ends at end of line
36 syn region cCppString start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,@Spell
38 if !exists("c_no_c99") " ISO C99
39 syn match cFormat display "%\(\d\+\$\)\=[-+' #0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlLjzt]\|ll\|hh\)\=\([aAbdiuoxXDOUfFeEgGcCsSpn]\|\[\^\=.[^]]*\]\)" contained
41 syn match cFormat display "%\(\d\+\$\)\=[-+' #0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlL]\|ll\)\=\([bdiuoxXDOUfeEgGcCsSpn]\|\[\^\=.[^]]*\]\)" contained
43 syn match cFormat display "%%" contained
44 syn region cString start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,cFormat,@Spell
45 " cCppString: same as cString, but ends at end of line
46 syn region cCppString start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,cFormat,@Spell
49 syn match cCharacter "L\='[^\\]'"
50 syn match cCharacter "L'[^']*'" contains=cSpecial
52 syn match cSpecialError "L\='\\[^'\"?\\abefnrtv]'"
53 syn match cSpecialCharacter "L\='\\['\"?\\abefnrtv]'"
55 syn match cSpecialError "L\='\\[^'\"?\\abfnrtv]'"
56 syn match cSpecialCharacter "L\='\\['\"?\\abfnrtv]'"
58 syn match cSpecialCharacter display "L\='\\\o\{1,3}'"
59 syn match cSpecialCharacter display "'\\x\x\{1,2}'"
60 syn match cSpecialCharacter display "L'\\x\x\+'"
62 "when wanted, highlight trailing white space
63 if exists("c_space_errors")
64 if !exists("c_no_trail_space_error")
65 syn match cSpaceError display excludenl "\s\+$"
67 if !exists("c_no_tab_space_error")
68 syn match cSpaceError display " \+\t"me=e-1
72 " This should be before cErrInParen to avoid problems with #define ({ xxx })
73 if exists("c_curly_error")
74 syntax match cCurlyError "}"
75 syntax region cBlock start="{" end="}" contains=ALLBUT,cCurlyError,@cParenGroup,cErrInParen,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell fold
77 syntax region cBlock start="{" end="}" transparent fold
80 "catch errors caused by wrong parenthesis and brackets
81 " also accept <% for {, %> for }, <: for [ and :> for ] (C99)
82 " But avoid matching <::.
83 syn cluster cParenGroup contains=cParenError,cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserCont,cUserLabel,cBitField,cOctalZero,cCppOut,cCppOut2,cCppSkip,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom
84 if exists("c_no_curly_error")
85 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cCppString,@Spell
86 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
87 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
88 syn match cParenError display ")"
89 syn match cErrInParen display contained "^[{}]\|^<%\|^%>"
90 elseif exists("c_no_bracket_error")
91 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cCppString,@Spell
92 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
93 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
94 syn match cParenError display ")"
95 syn match cErrInParen display contained "[{}]\|<%\|%>"
97 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell
98 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
99 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cErrInBracket,cParen,cBracket,cString,@Spell
100 syn match cParenError display "[\])]"
101 syn match cErrInParen display contained "[\]{}]\|<%\|%>"
102 syn region cBracket transparent start='\[\|<::\@!' end=']\|:>' contains=ALLBUT,@cParenGroup,cErrInParen,cCppParen,cCppBracket,cCppString,@Spell
103 " cCppBracket: same as cParen but ends at end-of-line; used in cDefine
104 syn region cCppBracket transparent start='\[\|<::\@!' skip='\\$' excludenl end=']\|:>' end='$' contained contains=ALLBUT,@cParenGroup,cErrInParen,cParen,cBracket,cString,@Spell
105 syn match cErrInBracket display contained "[);{}]\|<%\|%>"
108 "integer number, or floating point number without a dot and with "f".
110 syn match cNumbers display transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctalError,cOctal
111 " Same, but without octal error (for comments)
112 syn match cNumbersCom display contained transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctal
113 syn match cNumber display contained "\d\+\(u\=l\{0,2}\|ll\=u\)\>"
115 syn match cNumber display contained "0x\x\+\(u\=l\{0,2}\|ll\=u\)\>"
116 " Flag the first zero of an octal number as something special
117 syn match cOctal display contained "0\o\+\(u\=l\{0,2}\|ll\=u\)\>" contains=cOctalZero
118 syn match cOctalZero display contained "\<0"
119 syn match cFloat display contained "\d\+f"
120 "floating point number, with dot, optional exponent
121 syn match cFloat display contained "\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\="
122 "floating point number, starting with a dot, optional exponent
123 syn match cFloat display contained "\.\d\+\(e[-+]\=\d\+\)\=[fl]\=\>"
124 "floating point number, without dot, with exponent
125 syn match cFloat display contained "\d\+e[-+]\=\d\+[fl]\=\>"
126 if !exists("c_no_c99")
127 "hexadecimal floating point number, optional leading digits, with dot, with exponent
128 syn match cFloat display contained "0x\x*\.\x\+p[-+]\=\d\+[fl]\=\>"
129 "hexadecimal floating point number, with leading digits, optional dot, with exponent
130 syn match cFloat display contained "0x\x\+\.\=p[-+]\=\d\+[fl]\=\>"
133 " flag an octal number with wrong digits
134 syn match cOctalError display contained "0\o*[89]\d*"
137 if exists("c_comment_strings")
138 " A comment can contain cString, cCharacter and cNumber.
139 " But a "*/" inside a cString in a cComment DOES end the comment! So we
140 " need to use a special type of cString: cCommentString, which also ends on
141 " "*/", and sees a "*" at the start of the line as comment again.
142 " Unfortunately this doesn't very well work for // type of comments :-(
143 syntax match cCommentSkip contained "^\s*\*\($\|\s\+\)"
144 syntax region cCommentString contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end=+\*/+me=s-1 contains=cSpecial,cCommentSkip
145 syntax region cComment2String contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end="$" contains=cSpecial
146 syntax region cCommentL start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cComment2String,cCharacter,cNumbersCom,cSpaceError,@Spell
147 if exists("c_no_comment_fold")
148 " Use "extend" here to have preprocessor lines not terminate halfway a
150 syntax region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell extend
152 syntax region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell fold extend
155 syn region cCommentL start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cSpaceError,@Spell
156 if exists("c_no_comment_fold")
157 syn region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell extend
159 syn region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell fold extend
162 " keep a // comment separately, it terminates a preproc. conditional
163 syntax match cCommentError display "\*/"
164 syntax match cCommentStartError display "/\*"me=e-1 contained
166 syn keyword cOperator sizeof
168 syn keyword cStatement __asm__
169 syn keyword cOperator typeof __real__ __imag__
171 syn keyword cType int long short char void
172 syn keyword cType signed unsigned float double
173 if !exists("c_no_ansi") || exists("c_ansi_typedefs")
174 syn keyword cType size_t ssize_t off_t wchar_t ptrdiff_t sig_atomic_t fpos_t
175 syn keyword cType clock_t time_t va_list jmp_buf FILE DIR div_t ldiv_t
176 syn keyword cType mbstate_t wctrans_t wint_t wctype_t
178 if !exists("c_no_c99") " ISO C99
179 syn keyword cType bool complex
180 syn keyword cType int8_t int16_t int32_t int64_t
181 syn keyword cType uint8_t uint16_t uint32_t uint64_t
182 syn keyword cType int_least8_t int_least16_t int_least32_t int_least64_t
183 syn keyword cType uint_least8_t uint_least16_t uint_least32_t uint_least64_t
184 syn keyword cType int_fast8_t int_fast16_t int_fast32_t int_fast64_t
185 syn keyword cType uint_fast8_t uint_fast16_t uint_fast32_t uint_fast64_t
186 syn keyword cType intptr_t uintptr_t
187 syn keyword cType intmax_t uintmax_t
190 syn keyword cType __label__ __complex__ __volatile__
193 syn keyword cStructure struct union enum typedef
194 syn keyword cStorageClass static register auto volatile extern const
196 syn keyword cStorageClass inline __attribute__
198 if !exists("c_no_c99")
199 syn keyword cStorageClass inline restrict
202 if !exists("c_no_ansi") || exists("c_ansi_constants") || exists("c_gnu")
204 syn keyword cConstant __GNUC__ __FUNCTION__ __PRETTY_FUNCTION__ __func__
206 syn keyword cConstant __LINE__ __FILE__ __DATE__ __TIME__ __STDC__
207 syn keyword cConstant __STDC_VERSION__
208 syn keyword cConstant CHAR_BIT MB_LEN_MAX MB_CUR_MAX
209 syn keyword cConstant UCHAR_MAX UINT_MAX ULONG_MAX USHRT_MAX
210 syn keyword cConstant CHAR_MIN INT_MIN LONG_MIN SHRT_MIN
211 syn keyword cConstant CHAR_MAX INT_MAX LONG_MAX SHRT_MAX
212 syn keyword cConstant SCHAR_MIN SINT_MIN SLONG_MIN SSHRT_MIN
213 syn keyword cConstant SCHAR_MAX SINT_MAX SLONG_MAX SSHRT_MAX
214 if !exists("c_no_c99")
215 syn keyword cConstant __func__
216 syn keyword cConstant LLONG_MIN LLONG_MAX ULLONG_MAX
217 syn keyword cConstant INT8_MIN INT16_MIN INT32_MIN INT64_MIN
218 syn keyword cConstant INT8_MAX INT16_MAX INT32_MAX INT64_MAX
219 syn keyword cConstant UINT8_MAX UINT16_MAX UINT32_MAX UINT64_MAX
220 syn keyword cConstant INT_LEAST8_MIN INT_LEAST16_MIN INT_LEAST32_MIN INT_LEAST64_MIN
221 syn keyword cConstant INT_LEAST8_MAX INT_LEAST16_MAX INT_LEAST32_MAX INT_LEAST64_MAX
222 syn keyword cConstant UINT_LEAST8_MAX UINT_LEAST16_MAX UINT_LEAST32_MAX UINT_LEAST64_MAX
223 syn keyword cConstant INT_FAST8_MIN INT_FAST16_MIN INT_FAST32_MIN INT_FAST64_MIN
224 syn keyword cConstant INT_FAST8_MAX INT_FAST16_MAX INT_FAST32_MAX INT_FAST64_MAX
225 syn keyword cConstant UINT_FAST8_MAX UINT_FAST16_MAX UINT_FAST32_MAX UINT_FAST64_MAX
226 syn keyword cConstant INTPTR_MIN INTPTR_MAX UINTPTR_MAX
227 syn keyword cConstant INTMAX_MIN INTMAX_MAX UINTMAX_MAX
228 syn keyword cConstant PTRDIFF_MIN PTRDIFF_MAX SIG_ATOMIC_MIN SIG_ATOMIC_MAX
229 syn keyword cConstant SIZE_MAX WCHAR_MIN WCHAR_MAX WINT_MIN WINT_MAX
231 syn keyword cConstant FLT_RADIX FLT_ROUNDS
232 syn keyword cConstant FLT_DIG FLT_MANT_DIG FLT_EPSILON
233 syn keyword cConstant DBL_DIG DBL_MANT_DIG DBL_EPSILON
234 syn keyword cConstant LDBL_DIG LDBL_MANT_DIG LDBL_EPSILON
235 syn keyword cConstant FLT_MIN FLT_MAX FLT_MIN_EXP FLT_MAX_EXP
236 syn keyword cConstant FLT_MIN_10_EXP FLT_MAX_10_EXP
237 syn keyword cConstant DBL_MIN DBL_MAX DBL_MIN_EXP DBL_MAX_EXP
238 syn keyword cConstant DBL_MIN_10_EXP DBL_MAX_10_EXP
239 syn keyword cConstant LDBL_MIN LDBL_MAX LDBL_MIN_EXP LDBL_MAX_EXP
240 syn keyword cConstant LDBL_MIN_10_EXP LDBL_MAX_10_EXP
241 syn keyword cConstant HUGE_VAL CLOCKS_PER_SEC NULL
242 syn keyword cConstant LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY
243 syn keyword cConstant LC_NUMERIC LC_TIME
244 syn keyword cConstant SIG_DFL SIG_ERR SIG_IGN
245 syn keyword cConstant SIGABRT SIGFPE SIGILL SIGHUP SIGINT SIGSEGV SIGTERM
246 " Add POSIX signals as well...
247 syn keyword cConstant SIGABRT SIGALRM SIGCHLD SIGCONT SIGFPE SIGHUP
248 syn keyword cConstant SIGILL SIGINT SIGKILL SIGPIPE SIGQUIT SIGSEGV
249 syn keyword cConstant SIGSTOP SIGTERM SIGTRAP SIGTSTP SIGTTIN SIGTTOU
250 syn keyword cConstant SIGUSR1 SIGUSR2
251 syn keyword cConstant _IOFBF _IOLBF _IONBF BUFSIZ EOF WEOF
252 syn keyword cConstant FOPEN_MAX FILENAME_MAX L_tmpnam
253 syn keyword cConstant SEEK_CUR SEEK_END SEEK_SET
254 syn keyword cConstant TMP_MAX stderr stdin stdout
255 syn keyword cConstant EXIT_FAILURE EXIT_SUCCESS RAND_MAX
256 " Add POSIX errors as well
257 syn keyword cConstant E2BIG EACCES EAGAIN EBADF EBADMSG EBUSY
258 syn keyword cConstant ECANCELED ECHILD EDEADLK EDOM EEXIST EFAULT
259 syn keyword cConstant EFBIG EILSEQ EINPROGRESS EINTR EINVAL EIO EISDIR
260 syn keyword cConstant EMFILE EMLINK EMSGSIZE ENAMETOOLONG ENFILE ENODEV
261 syn keyword cConstant ENOENT ENOEXEC ENOLCK ENOMEM ENOSPC ENOSYS
262 syn keyword cConstant ENOTDIR ENOTEMPTY ENOTSUP ENOTTY ENXIO EPERM
263 syn keyword cConstant EPIPE ERANGE EROFS ESPIPE ESRCH ETIMEDOUT EXDEV
265 syn keyword cConstant M_E M_LOG2E M_LOG10E M_LN2 M_LN10 M_PI M_PI_2 M_PI_4
266 syn keyword cConstant M_1_PI M_2_PI M_2_SQRTPI M_SQRT2 M_SQRT1_2
268 if !exists("c_no_c99") " ISO C99
269 syn keyword cConstant true false
272 " Accept %: for # (C99)
273 syn region cPreCondit start="^\s*\(%:\|#\)\s*\(if\|ifdef\|ifndef\|elif\)\>" skip="\\$" end="$" keepend contains=cComment,cCommentL,cCppString,cCharacter,cCppParen,cParenError,cNumbers,cCommentError,cSpaceError
274 syn match cPreCondit display "^\s*\(%:\|#\)\s*\(else\|endif\)\>"
275 if !exists("c_no_if0")
276 if !exists("c_no_if0_fold")
277 syn region cCppOut start="^\s*\(%:\|#\)\s*if\s\+0\+\>" end=".\@=\|$" contains=cCppOut2 fold
279 syn region cCppOut start="^\s*\(%:\|#\)\s*if\s\+0\+\>" end=".\@=\|$" contains=cCppOut2
281 syn region cCppOut2 contained start="0" end="^\s*\(%:\|#\)\s*\(endif\>\|else\>\|elif\>\)" contains=cSpaceError,cCppSkip
282 syn region cCppSkip contained start="^\s*\(%:\|#\)\s*\(if\>\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*\(%:\|#\)\s*endif\>" contains=cSpaceError,cCppSkip
284 syn region cIncluded display contained start=+"+ skip=+\\\\\|\\"+ end=+"+
285 syn match cIncluded display contained "<[^>]*>"
286 syn match cInclude display "^\s*\(%:\|#\)\s*include\>\s*["<]" contains=cIncluded
287 "syn match cLineSkip "\\$"
288 syn cluster cPreProcGroup contains=cPreCondit,cIncluded,cInclude,cDefine,cErrInParen,cErrInBracket,cUserLabel,cSpecial,cOctalZero,cCppOut,cCppOut2,cCppSkip,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom,cString,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cParen,cBracket,cMulti
289 syn region cDefine start="^\s*\(%:\|#\)\s*\(define\|undef\)\>" skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell
290 syn region cPreProc start="^\s*\(%:\|#\)\s*\(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)" skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell
292 " Highlight User Labels
293 syn cluster cMultiGroup contains=cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserCont,cUserLabel,cBitField,cOctalZero,cCppOut,cCppOut2,cCppSkip,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom,cCppParen,cCppBracket,cCppString
294 syn region cMulti transparent start='?' skip='::' end=':' contains=ALLBUT,@cMultiGroup,@Spell
295 " Avoid matching foo::bar() in C++ by requiring that the next char is not ':'
296 syn cluster cLabelGroup contains=cUserLabel
297 syn match cUserCont display "^\s*\I\i*\s*:$" contains=@cLabelGroup
298 syn match cUserCont display ";\s*\I\i*\s*:$" contains=@cLabelGroup
299 syn match cUserCont display "^\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
300 syn match cUserCont display ";\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
302 syn match cUserLabel display "\I\i*" contained
304 " Avoid recognizing most bitfields as labels
305 syn match cBitField display "^\s*\I\i*\s*:\s*[1-9]"me=e-1 contains=cType
306 syn match cBitField display ";\s*\I\i*\s*:\s*[1-9]"me=e-1 contains=cType
308 if exists("c_minlines")
309 let b:c_minlines = c_minlines
311 if !exists("c_no_if0")
312 let b:c_minlines = 50 " #if 0 constructs can be long
314 let b:c_minlines = 15 " mostly for () constructs
317 if exists("c_curly_error")
320 exec "syn sync ccomment cComment minlines=" . b:c_minlines
323 " Define the default highlighting.
324 " Only used when an item doesn't have highlighting yet
325 hi def link cFormat cSpecial
326 hi def link cCppString cString
327 hi def link cCommentL cComment
328 hi def link cCommentStart cComment
329 hi def link cLabel Label
330 hi def link cUserLabel Label
331 hi def link cConditional Conditional
332 hi def link cRepeat Repeat
333 hi def link cCharacter Character
334 hi def link cSpecialCharacter cSpecial
335 hi def link cNumber Number
336 hi def link cOctal Number
337 hi def link cOctalZero PreProc " link this to Error if you want
338 hi def link cFloat Float
339 hi def link cOctalError cError
340 hi def link cParenError cError
341 hi def link cErrInParen cError
342 hi def link cErrInBracket cError
343 hi def link cCommentError cError
344 hi def link cCommentStartError cError
345 hi def link cSpaceError cError
346 hi def link cSpecialError cError
347 hi def link cCurlyError cError
348 hi def link cOperator Operator
349 hi def link cStructure Structure
350 hi def link cStorageClass StorageClass
351 hi def link cInclude Include
352 hi def link cPreProc PreProc
353 hi def link cDefine Macro
354 hi def link cIncluded cString
355 hi def link cError Error
356 hi def link cStatement Statement
357 hi def link cPreCondit PreCondit
358 hi def link cType Type
359 hi def link cConstant Constant
360 hi def link cCommentString cString
361 hi def link cComment2String cString
362 hi def link cCommentSkip cComment
363 hi def link cString String
364 hi def link cComment Comment
365 hi def link cSpecial SpecialChar
366 hi def link cTodo Todo
367 hi def link cBadContinuation Error
368 hi def link cCppSkip cCppOut
369 hi def link cCppOut2 cCppOut
370 hi def link cCppOut Comment
372 let b:current_syntax = "c"