xref: /vim-8.2.3635/runtime/syntax/c.vim (revision 61d35bd0)
1" Vim syntax file
2" Language:	C
3" Maintainer:	Bram Moolenaar <[email protected]>
4" Last Change:	2012 Jan 14
5
6" Quit when a (custom) syntax file was already loaded
7if exists("b:current_syntax")
8  finish
9endif
10
11let s:cpo_save = &cpo
12set cpo&vim
13
14" A bunch of useful C keywords
15syn keyword	cStatement	goto break return continue asm
16syn keyword	cLabel		case default
17syn keyword	cConditional	if else switch
18syn keyword	cRepeat		while for do
19
20syn keyword	cTodo		contained TODO FIXME XXX
21
22" It's easy to accidentally add a space after a backslash that was intended
23" for line continuation.  Some compilers allow it, which makes it
24" unpredicatable and should be avoided.
25syn match	cBadContinuation contained "\\\s\+$"
26
27" cCommentGroup allows adding matches for special things in comments
28syn cluster	cCommentGroup	contains=cTodo,cBadContinuation
29
30" String and Character constants
31" Highlight special characters (those which have a backslash) differently
32syn match	cSpecial	display contained "\\\(x\x\+\|\o\{1,3}\|.\|$\)"
33if !exists("c_no_utf")
34  syn match	cSpecial	display contained "\\\(u\x\{4}\|U\x\{8}\)"
35endif
36if exists("c_no_cformat")
37  syn region	cString		start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,@Spell
38  " cCppString: same as cString, but ends at end of line
39  syn region	cCppString	start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,@Spell
40else
41  if !exists("c_no_c99") " ISO C99
42    syn match	cFormat		display "%\(\d\+\$\)\=[-+' #0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlLjzt]\|ll\|hh\)\=\([aAbdiuoxXDOUfFeEgGcCsSpn]\|\[\^\=.[^]]*\]\)" contained
43  else
44    syn match	cFormat		display "%\(\d\+\$\)\=[-+' #0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlL]\|ll\)\=\([bdiuoxXDOUfeEgGcCsSpn]\|\[\^\=.[^]]*\]\)" contained
45  endif
46  syn match	cFormat		display "%%" contained
47  syn region	cString		start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,cFormat,@Spell
48  " cCppString: same as cString, but ends at end of line
49  syn region	cCppString	start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,cFormat,@Spell
50endif
51
52syn match	cCharacter	"L\='[^\\]'"
53syn match	cCharacter	"L'[^']*'" contains=cSpecial
54if exists("c_gnu")
55  syn match	cSpecialError	"L\='\\[^'\"?\\abefnrtv]'"
56  syn match	cSpecialCharacter "L\='\\['\"?\\abefnrtv]'"
57else
58  syn match	cSpecialError	"L\='\\[^'\"?\\abfnrtv]'"
59  syn match	cSpecialCharacter "L\='\\['\"?\\abfnrtv]'"
60endif
61syn match	cSpecialCharacter display "L\='\\\o\{1,3}'"
62syn match	cSpecialCharacter display "'\\x\x\{1,2}'"
63syn match	cSpecialCharacter display "L'\\x\x\+'"
64
65if !exists("c_no_c11") " ISO C11
66  if exists("c_no_cformat")
67    syn region	cString		start=+\%(U\|u8\=\)"+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,@Spell
68  else
69    syn region	cString		start=+\%(U\|u8\=\)"+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,cFormat,@Spell
70  endif
71  syn match	cCharacter	"[Uu]'[^\\]'"
72  syn match	cCharacter	"[Uu]'[^']*'" contains=cSpecial
73  if exists("c_gnu")
74    syn match	cSpecialError	"[Uu]'\\[^'\"?\\abefnrtv]'"
75    syn match	cSpecialCharacter "[Uu]'\\['\"?\\abefnrtv]'"
76  else
77    syn match	cSpecialError	"[Uu]'\\[^'\"?\\abfnrtv]'"
78    syn match	cSpecialCharacter "[Uu]'\\['\"?\\abfnrtv]'"
79  endif
80  syn match	cSpecialCharacter display "[Uu]'\\\o\{1,3}'"
81  syn match	cSpecialCharacter display "[Uu]'\\x\x\+'"
82endif
83
84"when wanted, highlight trailing white space
85if exists("c_space_errors")
86  if !exists("c_no_trail_space_error")
87    syn match	cSpaceError	display excludenl "\s\+$"
88  endif
89  if !exists("c_no_tab_space_error")
90    syn match	cSpaceError	display " \+\t"me=e-1
91  endif
92endif
93
94" This should be before cErrInParen to avoid problems with #define ({ xxx })
95if exists("c_curly_error")
96  syntax match cCurlyError "}"
97  syntax region	cBlock		start="{" end="}" contains=ALLBUT,cBadBlock,cCurlyError,@cParenGroup,cErrInParen,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell fold
98else
99  syntax region	cBlock		start="{" end="}" transparent fold
100endif
101
102"catch errors caused by wrong parenthesis and brackets
103" also accept <% for {, %> for }, <: for [ and :> for ] (C99)
104" But avoid matching <::.
105syn cluster	cParenGroup	contains=cParenError,cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserCont,cUserLabel,cBitField,cOctalZero,@cCppOutInGroup,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom
106if exists("c_no_curly_error")
107  syn region	cParen		transparent start='(' end=')' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cCppParen,cCppString,@Spell
108  " cCppParen: same as cParen but ends at end-of-line; used in cDefine
109  syn region	cCppParen	transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
110  syn match	cParenError	display ")"
111  syn match	cErrInParen	display contained "^[{}]\|^<%\|^%>"
112elseif exists("c_no_bracket_error")
113  syn region	cParen		transparent start='(' end=')' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cCppParen,cCppString,@Spell
114  " cCppParen: same as cParen but ends at end-of-line; used in cDefine
115  syn region	cCppParen	transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
116  syn match	cParenError	display ")"
117  syn match	cErrInParen	display contained "[{}]\|<%\|%>"
118else
119  syn region	cParen		transparent start='(' end=')' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell
120  " cCppParen: same as cParen but ends at end-of-line; used in cDefine
121  syn region	cCppParen	transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cErrInBracket,cParen,cBracket,cString,@Spell
122  syn match	cParenError	display "[\])]"
123  syn match	cErrInParen	display contained "[\]{}]\|<%\|%>"
124  syn region	cBracket	transparent start='\[\|<::\@!' end=']\|:>' end='}'me=s-1 contains=ALLBUT,cBlock,@cParenGroup,cErrInParen,cCppParen,cCppBracket,cCppString,@Spell
125  " cCppBracket: same as cParen but ends at end-of-line; used in cDefine
126  syn region	cCppBracket	transparent start='\[\|<::\@!' skip='\\$' excludenl end=']\|:>' end='$' contained contains=ALLBUT,@cParenGroup,cErrInParen,cParen,cBracket,cString,@Spell
127  syn match	cErrInBracket	display contained "[);{}]\|<%\|%>"
128endif
129
130syntax region	cBadBlock	keepend extend start="{" end="}" contained containedin=cParen,cBracket,cBadBlock transparent fold
131
132"integer number, or floating point number without a dot and with "f".
133syn case ignore
134syn match	cNumbers	display transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctalError,cOctal
135" Same, but without octal error (for comments)
136syn match	cNumbersCom	display contained transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctal
137syn match	cNumber		display contained "\d\+\(u\=l\{0,2}\|ll\=u\)\>"
138"hex number
139syn match	cNumber		display contained "0x\x\+\(u\=l\{0,2}\|ll\=u\)\>"
140" Flag the first zero of an octal number as something special
141syn match	cOctal		display contained "0\o\+\(u\=l\{0,2}\|ll\=u\)\>" contains=cOctalZero
142syn match	cOctalZero	display contained "\<0"
143syn match	cFloat		display contained "\d\+f"
144"floating point number, with dot, optional exponent
145syn match	cFloat		display contained "\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\="
146"floating point number, starting with a dot, optional exponent
147syn match	cFloat		display contained "\.\d\+\(e[-+]\=\d\+\)\=[fl]\=\>"
148"floating point number, without dot, with exponent
149syn match	cFloat		display contained "\d\+e[-+]\=\d\+[fl]\=\>"
150if !exists("c_no_c99")
151  "hexadecimal floating point number, optional leading digits, with dot, with exponent
152  syn match	cFloat		display contained "0x\x*\.\x\+p[-+]\=\d\+[fl]\=\>"
153  "hexadecimal floating point number, with leading digits, optional dot, with exponent
154  syn match	cFloat		display contained "0x\x\+\.\=p[-+]\=\d\+[fl]\=\>"
155endif
156
157" flag an octal number with wrong digits
158syn match	cOctalError	display contained "0\o*[89]\d*"
159syn case match
160
161if exists("c_comment_strings")
162  " A comment can contain cString, cCharacter and cNumber.
163  " But a "*/" inside a cString in a cComment DOES end the comment!  So we
164  " need to use a special type of cString: cCommentString, which also ends on
165  " "*/", and sees a "*" at the start of the line as comment again.
166  " Unfortunately this doesn't very well work for // type of comments :-(
167  syntax match	cCommentSkip	contained "^\s*\*\($\|\s\+\)"
168  syntax region cCommentString	contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end=+\*/+me=s-1 contains=cSpecial,cCommentSkip
169  syntax region cComment2String	contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end="$" contains=cSpecial
170  syntax region  cCommentL	start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cComment2String,cCharacter,cNumbersCom,cSpaceError,@Spell
171  if exists("c_no_comment_fold")
172    " Use "extend" here to have preprocessor lines not terminate halfway a
173    " comment.
174    syntax region cComment	matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell extend
175  else
176    syntax region cComment	matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell fold extend
177  endif
178else
179  syn region	cCommentL	start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cSpaceError,@Spell
180  if exists("c_no_comment_fold")
181    syn region	cComment	matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell extend
182  else
183    syn region	cComment	matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell fold extend
184  endif
185endif
186" keep a // comment separately, it terminates a preproc. conditional
187syntax match	cCommentError	display "\*/"
188syntax match	cCommentStartError display "/\*"me=e-1 contained
189
190syn keyword	cOperator	sizeof
191if exists("c_gnu")
192  syn keyword	cStatement	__asm__
193  syn keyword	cOperator	typeof __real__ __imag__
194endif
195syn keyword	cType		int long short char void
196syn keyword	cType		signed unsigned float double
197if !exists("c_no_ansi") || exists("c_ansi_typedefs")
198  syn keyword   cType		size_t ssize_t off_t wchar_t ptrdiff_t sig_atomic_t fpos_t
199  syn keyword   cType		clock_t time_t va_list jmp_buf FILE DIR div_t ldiv_t
200  syn keyword   cType		mbstate_t wctrans_t wint_t wctype_t
201endif
202if !exists("c_no_c99") " ISO C99
203  syn keyword	cType		_Bool bool _Complex complex _Imaginary imaginary
204  syn keyword	cType		int8_t int16_t int32_t int64_t
205  syn keyword	cType		uint8_t uint16_t uint32_t uint64_t
206  syn keyword	cType		int_least8_t int_least16_t int_least32_t int_least64_t
207  syn keyword	cType		uint_least8_t uint_least16_t uint_least32_t uint_least64_t
208  syn keyword	cType		int_fast8_t int_fast16_t int_fast32_t int_fast64_t
209  syn keyword	cType		uint_fast8_t uint_fast16_t uint_fast32_t uint_fast64_t
210  syn keyword	cType		intptr_t uintptr_t
211  syn keyword	cType		intmax_t uintmax_t
212endif
213if exists("c_gnu")
214  syn keyword	cType		__label__ __complex__ __volatile__
215endif
216
217syn keyword	cStructure	struct union enum typedef
218syn keyword	cStorageClass	static register auto volatile extern const
219if exists("c_gnu")
220  syn keyword	cStorageClass	inline __attribute__
221endif
222if !exists("c_no_c99")
223  syn keyword	cStorageClass	inline restrict
224endif
225if !exists("c_no_c11")
226  syn keyword	cStorageClass	_Alignas alignas
227  syn keyword	cOperator	_Alignof alignof
228  syn keyword	cStorageClass	_Atomic
229  syn keyword	cOperator	_Generic
230  syn keyword	cStorageClass	_Noreturn noreturn
231  syn keyword	cOperator	_Static_assert static_assert
232  syn keyword	cStorageClass	_Thread_local thread_local
233  syn keyword   cType		char16_t char32_t
234endif
235
236if !exists("c_no_ansi") || exists("c_ansi_constants") || exists("c_gnu")
237  if exists("c_gnu")
238    syn keyword cConstant __GNUC__ __FUNCTION__ __PRETTY_FUNCTION__ __func__
239  endif
240  syn keyword cConstant __LINE__ __FILE__ __DATE__ __TIME__ __STDC__
241  syn keyword cConstant __STDC_VERSION__
242  syn keyword cConstant CHAR_BIT MB_LEN_MAX MB_CUR_MAX
243  syn keyword cConstant UCHAR_MAX UINT_MAX ULONG_MAX USHRT_MAX
244  syn keyword cConstant CHAR_MIN INT_MIN LONG_MIN SHRT_MIN
245  syn keyword cConstant CHAR_MAX INT_MAX LONG_MAX SHRT_MAX
246  syn keyword cConstant SCHAR_MIN SINT_MIN SLONG_MIN SSHRT_MIN
247  syn keyword cConstant SCHAR_MAX SINT_MAX SLONG_MAX SSHRT_MAX
248  if !exists("c_no_c99")
249    syn keyword cConstant __func__
250    syn keyword cConstant LLONG_MIN LLONG_MAX ULLONG_MAX
251    syn keyword cConstant INT8_MIN INT16_MIN INT32_MIN INT64_MIN
252    syn keyword cConstant INT8_MAX INT16_MAX INT32_MAX INT64_MAX
253    syn keyword cConstant UINT8_MAX UINT16_MAX UINT32_MAX UINT64_MAX
254    syn keyword cConstant INT_LEAST8_MIN INT_LEAST16_MIN INT_LEAST32_MIN INT_LEAST64_MIN
255    syn keyword cConstant INT_LEAST8_MAX INT_LEAST16_MAX INT_LEAST32_MAX INT_LEAST64_MAX
256    syn keyword cConstant UINT_LEAST8_MAX UINT_LEAST16_MAX UINT_LEAST32_MAX UINT_LEAST64_MAX
257    syn keyword cConstant INT_FAST8_MIN INT_FAST16_MIN INT_FAST32_MIN INT_FAST64_MIN
258    syn keyword cConstant INT_FAST8_MAX INT_FAST16_MAX INT_FAST32_MAX INT_FAST64_MAX
259    syn keyword cConstant UINT_FAST8_MAX UINT_FAST16_MAX UINT_FAST32_MAX UINT_FAST64_MAX
260    syn keyword cConstant INTPTR_MIN INTPTR_MAX UINTPTR_MAX
261    syn keyword cConstant INTMAX_MIN INTMAX_MAX UINTMAX_MAX
262    syn keyword cConstant PTRDIFF_MIN PTRDIFF_MAX SIG_ATOMIC_MIN SIG_ATOMIC_MAX
263    syn keyword cConstant SIZE_MAX WCHAR_MIN WCHAR_MAX WINT_MIN WINT_MAX
264  endif
265  syn keyword cConstant FLT_RADIX FLT_ROUNDS
266  syn keyword cConstant FLT_DIG FLT_MANT_DIG FLT_EPSILON
267  syn keyword cConstant DBL_DIG DBL_MANT_DIG DBL_EPSILON
268  syn keyword cConstant LDBL_DIG LDBL_MANT_DIG LDBL_EPSILON
269  syn keyword cConstant FLT_MIN FLT_MAX FLT_MIN_EXP FLT_MAX_EXP
270  syn keyword cConstant FLT_MIN_10_EXP FLT_MAX_10_EXP
271  syn keyword cConstant DBL_MIN DBL_MAX DBL_MIN_EXP DBL_MAX_EXP
272  syn keyword cConstant DBL_MIN_10_EXP DBL_MAX_10_EXP
273  syn keyword cConstant LDBL_MIN LDBL_MAX LDBL_MIN_EXP LDBL_MAX_EXP
274  syn keyword cConstant LDBL_MIN_10_EXP LDBL_MAX_10_EXP
275  syn keyword cConstant HUGE_VAL CLOCKS_PER_SEC NULL
276  syn keyword cConstant LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY
277  syn keyword cConstant LC_NUMERIC LC_TIME
278  syn keyword cConstant SIG_DFL SIG_ERR SIG_IGN
279  syn keyword cConstant SIGABRT SIGFPE SIGILL SIGHUP SIGINT SIGSEGV SIGTERM
280  " Add POSIX signals as well...
281  syn keyword cConstant SIGABRT SIGALRM SIGCHLD SIGCONT SIGFPE SIGHUP
282  syn keyword cConstant SIGILL SIGINT SIGKILL SIGPIPE SIGQUIT SIGSEGV
283  syn keyword cConstant SIGSTOP SIGTERM SIGTRAP SIGTSTP SIGTTIN SIGTTOU
284  syn keyword cConstant SIGUSR1 SIGUSR2
285  syn keyword cConstant _IOFBF _IOLBF _IONBF BUFSIZ EOF WEOF
286  syn keyword cConstant FOPEN_MAX FILENAME_MAX L_tmpnam
287  syn keyword cConstant SEEK_CUR SEEK_END SEEK_SET
288  syn keyword cConstant TMP_MAX stderr stdin stdout
289  syn keyword cConstant EXIT_FAILURE EXIT_SUCCESS RAND_MAX
290  " Add POSIX errors as well
291  syn keyword cConstant E2BIG EACCES EAGAIN EBADF EBADMSG EBUSY
292  syn keyword cConstant ECANCELED ECHILD EDEADLK EDOM EEXIST EFAULT
293  syn keyword cConstant EFBIG EILSEQ EINPROGRESS EINTR EINVAL EIO EISDIR
294  syn keyword cConstant EMFILE EMLINK EMSGSIZE ENAMETOOLONG ENFILE ENODEV
295  syn keyword cConstant ENOENT ENOEXEC ENOLCK ENOMEM ENOSPC ENOSYS
296  syn keyword cConstant ENOTDIR ENOTEMPTY ENOTSUP ENOTTY ENXIO EPERM
297  syn keyword cConstant EPIPE ERANGE EROFS ESPIPE ESRCH ETIMEDOUT EXDEV
298  " math.h
299  syn keyword cConstant M_E M_LOG2E M_LOG10E M_LN2 M_LN10 M_PI M_PI_2 M_PI_4
300  syn keyword cConstant M_1_PI M_2_PI M_2_SQRTPI M_SQRT2 M_SQRT1_2
301endif
302if !exists("c_no_c99") " ISO C99
303  syn keyword cConstant true false
304endif
305
306" Accept %: for # (C99)
307syn region	cPreCondit	start="^\s*\(%:\|#\)\s*\(if\|ifdef\|ifndef\|elif\)\>" skip="\\$" end="$" keepend contains=cComment,cCommentL,cCppString,cCharacter,cCppParen,cParenError,cNumbers,cCommentError,cSpaceError
308syn match	cPreConditMatch	display "^\s*\(%:\|#\)\s*\(else\|endif\)\>"
309if !exists("c_no_if0")
310  syn cluster	cCppOutInGroup	contains=cCppInIf,cCppInElse,cCppInElse2,cCppOutIf,cCppOutIf2,cCppOutElse,cCppInSkip,cCppOutSkip
311  syn region	cCppOutWrapper	start="^\s*\(%:\|#\)\s*if\s\+0\+\s*\($\|//\|/\*\|&\)" end=".\@=\|$" contains=cCppOutIf,cCppOutElse fold
312  syn region	cCppOutIf	contained start="0\+" matchgroup=cCppOutWrapper end="^\s*\(%:\|#\)\s*endif\>" contains=cCppOutIf2,cCppOutElse
313  if !exists("c_no_if0_fold")
314    syn region	cCppOutIf2	contained matchgroup=cCppOutWrapper start="0\+" end="^\s*\(%:\|#\)\s*\(else\>\|elif\s\+\(0\+\s*\($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1 contains=cSpaceError,cCppOutSkip fold
315  else
316    syn region	cCppOutIf2	contained matchgroup=cCppOutWrapper start="0\+" end="^\s*\(%:\|#\)\s*\(else\>\|elif\s\+\(0\+\s*\($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1 contains=cSpaceError,cCppOutSkip
317  endif
318  syn region	cCppOutElse	contained matchgroup=cCppOutWrapper start="^\s*\(%:\|#\)\s*\(else\|elif\)" end="^\s*\(%:\|#\)\s*endif\>"me=s-1 contains=TOP,cPreCondit
319  syn region	cCppInWrapper	start="^\s*\(%:\|#\)\s*if\s\+0*[1-9]\d*\s*\($\|//\|/\*\||\)" end=".\@=\|$" contains=cCppInIf,cCppInElse fold
320  syn region	cCppInIf	contained matchgroup=cCppInWrapper start="\d\+" end="^\s*\(%:\|#\)\s*endif\>" contains=TOP,cPreCondit
321  if !exists("c_no_if0_fold")
322    syn region	cCppInElse	contained start="^\s*\(%:\|#\)\s*\(else\>\|elif\s\+\(0*[1-9]\d*\s*\($\|//\|/\*\||\)\)\@!\)" end=".\@=\|$" containedin=cCppInIf contains=cCppInElse2 fold
323  else
324    syn region	cCppInElse	contained start="^\s*\(%:\|#\)\s*\(else\>\|elif\s\+\(0*[1-9]\d*\s*\($\|//\|/\*\||\)\)\@!\)" end=".\@=\|$" containedin=cCppInIf contains=cCppInElse2
325  endif
326  syn region	cCppInElse2	contained matchgroup=cCppInWrapper start="^\s*\(%:\|#\)\s*\(else\|elif\)\([^/]\|/[^/*]\)*" end="^\s*\(%:\|#\)\s*endif\>"me=s-1 contains=cSpaceError,cCppOutSkip
327  syn region	cCppOutSkip	contained start="^\s*\(%:\|#\)\s*\(if\>\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*\(%:\|#\)\s*endif\>" contains=cSpaceError,cCppOutSkip
328  syn region	cCppInSkip	contained matchgroup=cCppInWrapper start="^\s*\(%:\|#\)\s*\(if\s\+\(\d\+\s*\($\|//\|/\*\||\|&\)\)\@!\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*\(%:\|#\)\s*endif\>" containedin=cCppOutElse,cCppInIf,cCppInSkip contains=TOP,cPreProc
329endif
330syn region	cIncluded	display contained start=+"+ skip=+\\\\\|\\"+ end=+"+
331syn match	cIncluded	display contained "<[^>]*>"
332syn match	cInclude	display "^\s*\(%:\|#\)\s*include\>\s*["<]" contains=cIncluded
333"syn match cLineSkip	"\\$"
334syn cluster	cPreProcGroup	contains=cPreCondit,cIncluded,cInclude,cDefine,cErrInParen,cErrInBracket,cUserLabel,cSpecial,cOctalZero,cCppOutWrapper,cCppInWrapper,@cCppOutInGroup,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom,cString,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cParen,cBracket,cMulti
335syn region	cDefine		start="^\s*\(%:\|#\)\s*\(define\|undef\)\>" skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell
336syn region	cPreProc	start="^\s*\(%:\|#\)\s*\(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)" skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell
337
338" Highlight User Labels
339syn cluster	cMultiGroup	contains=cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserCont,cUserLabel,cBitField,cOctalZero,cCppOutWrapper,cCppInWrapper,@cCppOutInGroup,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom,cCppParen,cCppBracket,cCppString
340syn region	cMulti		transparent start='?' skip='::' end=':' contains=ALLBUT,@cMultiGroup,@Spell
341" Avoid matching foo::bar() in C++ by requiring that the next char is not ':'
342syn cluster	cLabelGroup	contains=cUserLabel
343syn match	cUserCont	display "^\s*\I\i*\s*:$" contains=@cLabelGroup
344syn match	cUserCont	display ";\s*\I\i*\s*:$" contains=@cLabelGroup
345syn match	cUserCont	display "^\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
346syn match	cUserCont	display ";\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
347
348syn match	cUserLabel	display "\I\i*" contained
349
350" Avoid recognizing most bitfields as labels
351syn match	cBitField	display "^\s*\I\i*\s*:\s*[1-9]"me=e-1 contains=cType
352syn match	cBitField	display ";\s*\I\i*\s*:\s*[1-9]"me=e-1 contains=cType
353
354if exists("c_minlines")
355  let b:c_minlines = c_minlines
356else
357  if !exists("c_no_if0")
358    let b:c_minlines = 50	" #if 0 constructs can be long
359  else
360    let b:c_minlines = 15	" mostly for () constructs
361  endif
362endif
363if exists("c_curly_error")
364  syn sync fromstart
365else
366  exec "syn sync ccomment cComment minlines=" . b:c_minlines
367endif
368
369" Define the default highlighting.
370" Only used when an item doesn't have highlighting yet
371hi def link cFormat		cSpecial
372hi def link cCppString		cString
373hi def link cCommentL		cComment
374hi def link cCommentStart	cComment
375hi def link cLabel		Label
376hi def link cUserLabel		Label
377hi def link cConditional	Conditional
378hi def link cRepeat		Repeat
379hi def link cCharacter		Character
380hi def link cSpecialCharacter	cSpecial
381hi def link cNumber		Number
382hi def link cOctal		Number
383hi def link cOctalZero		PreProc	 " link this to Error if you want
384hi def link cFloat		Float
385hi def link cOctalError		cError
386hi def link cParenError		cError
387hi def link cErrInParen		cError
388hi def link cErrInBracket	cError
389hi def link cCommentError	cError
390hi def link cCommentStartError	cError
391hi def link cSpaceError		cError
392hi def link cSpecialError	cError
393hi def link cCurlyError		cError
394hi def link cOperator		Operator
395hi def link cStructure		Structure
396hi def link cStorageClass	StorageClass
397hi def link cInclude		Include
398hi def link cPreProc		PreProc
399hi def link cDefine		Macro
400hi def link cIncluded		cString
401hi def link cError		Error
402hi def link cStatement		Statement
403hi def link cCppInWrapper	cCppOutWrapper
404hi def link cCppOutWrapper	cPreCondit
405hi def link cPreConditMatch	cPreCondit
406hi def link cPreCondit		PreCondit
407hi def link cType		Type
408hi def link cConstant		Constant
409hi def link cCommentString	cString
410hi def link cComment2String	cString
411hi def link cCommentSkip	cComment
412hi def link cString		String
413hi def link cComment		Comment
414hi def link cSpecial		SpecialChar
415hi def link cTodo		Todo
416hi def link cBadContinuation	Error
417hi def link cCppOutSkip		cCppOutIf2
418hi def link cCppInElse2		cCppOutIf2
419hi def link cCppOutIf2		cCppOut2  " Old syntax group for #if 0 body
420hi def link cCppOut2		cCppOut  " Old syntax group for #if of #if 0
421hi def link cCppOut		Comment
422
423let b:current_syntax = "c"
424
425let &cpo = s:cpo_save
426unlet s:cpo_save
427" vim: ts=8
428