3 " Maintainer: Bram Moolenaar <Bram@vim.org>
4 " Last Change: 2007 Feb 13
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 " cCommentGroup allows adding matches for special things in comments
20 syn cluster cCommentGroup contains=cTodo
22 " String and Character constants
23 " Highlight special characters (those which have a backslash) differently
24 syn match cSpecial display contained "\\\(x\x\+\|\o\{1,3}\|.\|$\)"
25 if !exists("c_no_utf")
26 syn match cSpecial display contained "\\\(u\x\{4}\|U\x\{8}\)"
28 if exists("c_no_cformat")
29 syn region cString start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,@Spell
30 " cCppString: same as cString, but ends at end of line
31 syn region cCppString start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,@Spell
33 if !exists("c_no_c99") " ISO C99
34 syn match cFormat display "%\(\d\+\$\)\=[-+' #0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlLjzt]\|ll\|hh\)\=\([aAbdiuoxXDOUfFeEgGcCsSpn]\|\[\^\=.[^]]*\]\)" contained
36 syn match cFormat display "%\(\d\+\$\)\=[-+' #0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlL]\|ll\)\=\([bdiuoxXDOUfeEgGcCsSpn]\|\[\^\=.[^]]*\]\)" contained
38 syn match cFormat display "%%" contained
39 syn region cString start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,cFormat,@Spell
40 " cCppString: same as cString, but ends at end of line
41 syn region cCppString start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,cFormat,@Spell
44 syn match cCharacter "L\='[^\\]'"
45 syn match cCharacter "L'[^']*'" contains=cSpecial
47 syn match cSpecialError "L\='\\[^'\"?\\abefnrtv]'"
48 syn match cSpecialCharacter "L\='\\['\"?\\abefnrtv]'"
50 syn match cSpecialError "L\='\\[^'\"?\\abfnrtv]'"
51 syn match cSpecialCharacter "L\='\\['\"?\\abfnrtv]'"
53 syn match cSpecialCharacter display "L\='\\\o\{1,3}'"
54 syn match cSpecialCharacter display "'\\x\x\{1,2}'"
55 syn match cSpecialCharacter display "L'\\x\x\+'"
57 "when wanted, highlight trailing white space
58 if exists("c_space_errors")
59 if !exists("c_no_trail_space_error")
60 syn match cSpaceError display excludenl "\s\+$"
62 if !exists("c_no_tab_space_error")
63 syn match cSpaceError display " \+\t"me=e-1
67 " This should be before cErrInParen to avoid problems with #define ({ xxx })
68 syntax region cBlock start="{" end="}" transparent fold
70 "catch errors caused by wrong parenthesis and brackets
71 " also accept <% for {, %> for }, <: for [ and :> for ] (C99)
72 " But avoid matching <::.
73 syn cluster cParenGroup contains=cParenError,cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserCont,cUserLabel,cBitField,cCommentSkip,cOctalZero,cCppOut,cCppOut2,cCppSkip,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom
74 if exists("c_no_curly_error")
75 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cCppString,@Spell
76 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
77 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
78 syn match cParenError display ")"
79 syn match cErrInParen display contained "^[{}]\|^<%\|^%>"
80 elseif exists("c_no_bracket_error")
81 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cCppString,@Spell
82 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
83 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
84 syn match cParenError display ")"
85 syn match cErrInParen display contained "[{}]\|<%\|%>"
87 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell
88 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
89 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cErrInBracket,cParen,cBracket,cString,@Spell
90 syn match cParenError display "[\])]"
91 syn match cErrInParen display contained "[\]{}]\|<%\|%>"
92 syn region cBracket transparent start='\[\|<::\@!' end=']\|:>' contains=ALLBUT,@cParenGroup,cErrInParen,cCppParen,cCppBracket,cCppString,@Spell
93 " cCppBracket: same as cParen but ends at end-of-line; used in cDefine
94 syn region cCppBracket transparent start='\[\|<::\@!' skip='\\$' excludenl end=']\|:>' end='$' contained contains=ALLBUT,@cParenGroup,cErrInParen,cParen,cBracket,cString,@Spell
95 syn match cErrInBracket display contained "[);{}]\|<%\|%>"
98 "integer number, or floating point number without a dot and with "f".
100 syn match cNumbers display transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctalError,cOctal
101 " Same, but without octal error (for comments)
102 syn match cNumbersCom display contained transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctal
103 syn match cNumber display contained "\d\+\(u\=l\{0,2}\|ll\=u\)\>"
105 syn match cNumber display contained "0x\x\+\(u\=l\{0,2}\|ll\=u\)\>"
106 " Flag the first zero of an octal number as something special
107 syn match cOctal display contained "0\o\+\(u\=l\{0,2}\|ll\=u\)\>" contains=cOctalZero
108 syn match cOctalZero display contained "\<0"
109 syn match cFloat display contained "\d\+f"
110 "floating point number, with dot, optional exponent
111 syn match cFloat display contained "\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\="
112 "floating point number, starting with a dot, optional exponent
113 syn match cFloat display contained "\.\d\+\(e[-+]\=\d\+\)\=[fl]\=\>"
114 "floating point number, without dot, with exponent
115 syn match cFloat display contained "\d\+e[-+]\=\d\+[fl]\=\>"
116 if !exists("c_no_c99")
117 "hexadecimal floating point number, optional leading digits, with dot, with exponent
118 syn match cFloat display contained "0x\x*\.\x\+p[-+]\=\d\+[fl]\=\>"
119 "hexadecimal floating point number, with leading digits, optional dot, with exponent
120 syn match cFloat display contained "0x\x\+\.\=p[-+]\=\d\+[fl]\=\>"
123 " flag an octal number with wrong digits
124 syn match cOctalError display contained "0\o*[89]\d*"
127 if exists("c_comment_strings")
128 " A comment can contain cString, cCharacter and cNumber.
129 " But a "*/" inside a cString in a cComment DOES end the comment! So we
130 " need to use a special type of cString: cCommentString, which also ends on
131 " "*/", and sees a "*" at the start of the line as comment again.
132 " Unfortunately this doesn't very well work for // type of comments :-(
133 syntax match cCommentSkip contained "^\s*\*\($\|\s\+\)"
134 syntax region cCommentString contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end=+\*/+me=s-1 contains=cSpecial,cCommentSkip
135 syntax region cComment2String contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end="$" contains=cSpecial
136 syntax region cCommentL start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cComment2String,cCharacter,cNumbersCom,cSpaceError,@Spell
137 if exists("c_no_comment_fold")
138 " Use "extend" here to have preprocessor lines not terminate halfway a
140 syntax region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell extend
142 syntax region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell fold extend
145 syn region cCommentL start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cSpaceError,@Spell
146 if exists("c_no_comment_fold")
147 syn region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell
149 syn region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell fold
152 " keep a // comment separately, it terminates a preproc. conditional
153 syntax match cCommentError display "\*/"
154 syntax match cCommentStartError display "/\*"me=e-1 contained
156 syn keyword cOperator sizeof
158 syn keyword cStatement __asm__
159 syn keyword cOperator typeof __real__ __imag__
161 syn keyword cType int long short char void
162 syn keyword cType signed unsigned float double
163 if !exists("c_no_ansi") || exists("c_ansi_typedefs")
164 syn keyword cType size_t ssize_t off_t wchar_t ptrdiff_t sig_atomic_t fpos_t
165 syn keyword cType clock_t time_t va_list jmp_buf FILE DIR div_t ldiv_t
166 syn keyword cType mbstate_t wctrans_t wint_t wctype_t
168 if !exists("c_no_c99") " ISO C99
169 syn keyword cType bool complex
170 syn keyword cType int8_t int16_t int32_t int64_t
171 syn keyword cType uint8_t uint16_t uint32_t uint64_t
172 syn keyword cType int_least8_t int_least16_t int_least32_t int_least64_t
173 syn keyword cType uint_least8_t uint_least16_t uint_least32_t uint_least64_t
174 syn keyword cType int_fast8_t int_fast16_t int_fast32_t int_fast64_t
175 syn keyword cType uint_fast8_t uint_fast16_t uint_fast32_t uint_fast64_t
176 syn keyword cType intptr_t uintptr_t
177 syn keyword cType intmax_t uintmax_t
180 syn keyword cType __label__ __complex__ __volatile__
183 syn keyword cStructure struct union enum typedef
184 syn keyword cStorageClass static register auto volatile extern const
186 syn keyword cStorageClass inline __attribute__
188 if !exists("c_no_c99")
189 syn keyword cStorageClass inline restrict
192 if !exists("c_no_ansi") || exists("c_ansi_constants") || exists("c_gnu")
194 syn keyword cConstant __GNUC__ __FUNCTION__ __PRETTY_FUNCTION__ __func__
196 syn keyword cConstant __LINE__ __FILE__ __DATE__ __TIME__ __STDC__
197 syn keyword cConstant __STDC_VERSION__
198 syn keyword cConstant CHAR_BIT MB_LEN_MAX MB_CUR_MAX
199 syn keyword cConstant UCHAR_MAX UINT_MAX ULONG_MAX USHRT_MAX
200 syn keyword cConstant CHAR_MIN INT_MIN LONG_MIN SHRT_MIN
201 syn keyword cConstant CHAR_MAX INT_MAX LONG_MAX SHRT_MAX
202 syn keyword cConstant SCHAR_MIN SINT_MIN SLONG_MIN SSHRT_MIN
203 syn keyword cConstant SCHAR_MAX SINT_MAX SLONG_MAX SSHRT_MAX
204 if !exists("c_no_c99")
205 syn keyword cConstant __func__
206 syn keyword cConstant LLONG_MAX ULLONG_MAX
207 syn keyword cConstant INT8_MIN INT16_MIN INT32_MIN INT64_MIN
208 syn keyword cConstant INT8_MAX INT16_MAX INT32_MAX INT64_MAX
209 syn keyword cConstant UINT8_MAX UINT16_MAX UINT32_MAX UINT64_MAX
210 syn keyword cConstant INT_LEAST8_MIN INT_LEAST16_MIN INT_LEAST32_MIN INT_LEAST64_MIN
211 syn keyword cConstant INT_LEAST8_MAX INT_LEAST16_MAX INT_LEAST32_MAX INT_LEAST64_MAX
212 syn keyword cConstant UINT_LEAST8_MAX UINT_LEAST16_MAX UINT_LEAST32_MAX UINT_LEAST64_MAX
213 syn keyword cConstant INT_FAST8_MIN INT_FAST16_MIN INT_FAST32_MIN INT_FAST64_MIN
214 syn keyword cConstant INT_FAST8_MAX INT_FAST16_MAX INT_FAST32_MAX INT_FAST64_MAX
215 syn keyword cConstant UINT_FAST8_MAX UINT_FAST16_MAX UINT_FAST32_MAX UINT_FAST64_MAX
216 syn keyword cConstant INTPTR_MIN INTPTR_MAX UINTPTR_MAX
217 syn keyword cConstant INTMAX_MIN INTMAX_MAX UINTMAX_MAX
218 syn keyword cConstant PTRDIFF_MIN PTRDIFF_MAX SIG_ATOMIC_MIN SIG_ATOMIC_MAX
219 syn keyword cConstant SIZE_MAX WCHAR_MIN WCHAR_MAX WINT_MIN WINT_MAX
221 syn keyword cConstant FLT_RADIX FLT_ROUNDS
222 syn keyword cConstant FLT_DIG FLT_MANT_DIG FLT_EPSILON
223 syn keyword cConstant DBL_DIG DBL_MANT_DIG DBL_EPSILON
224 syn keyword cConstant LDBL_DIG LDBL_MANT_DIG LDBL_EPSILON
225 syn keyword cConstant FLT_MIN FLT_MAX FLT_MIN_EXP FLT_MAX_EXP
226 syn keyword cConstant FLT_MIN_10_EXP FLT_MAX_10_EXP
227 syn keyword cConstant DBL_MIN DBL_MAX DBL_MIN_EXP DBL_MAX_EXP
228 syn keyword cConstant DBL_MIN_10_EXP DBL_MAX_10_EXP
229 syn keyword cConstant LDBL_MIN LDBL_MAX LDBL_MIN_EXP LDBL_MAX_EXP
230 syn keyword cConstant LDBL_MIN_10_EXP LDBL_MAX_10_EXP
231 syn keyword cConstant HUGE_VAL CLOCKS_PER_SEC NULL
232 syn keyword cConstant LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY
233 syn keyword cConstant LC_NUMERIC LC_TIME
234 syn keyword cConstant SIG_DFL SIG_ERR SIG_IGN
235 syn keyword cConstant SIGABRT SIGFPE SIGILL SIGHUP SIGINT SIGSEGV SIGTERM
236 " Add POSIX signals as well...
237 syn keyword cConstant SIGABRT SIGALRM SIGCHLD SIGCONT SIGFPE SIGHUP
238 syn keyword cConstant SIGILL SIGINT SIGKILL SIGPIPE SIGQUIT SIGSEGV
239 syn keyword cConstant SIGSTOP SIGTERM SIGTRAP SIGTSTP SIGTTIN SIGTTOU
240 syn keyword cConstant SIGUSR1 SIGUSR2
241 syn keyword cConstant _IOFBF _IOLBF _IONBF BUFSIZ EOF WEOF
242 syn keyword cConstant FOPEN_MAX FILENAME_MAX L_tmpnam
243 syn keyword cConstant SEEK_CUR SEEK_END SEEK_SET
244 syn keyword cConstant TMP_MAX stderr stdin stdout
245 syn keyword cConstant EXIT_FAILURE EXIT_SUCCESS RAND_MAX
246 " Add POSIX errors as well
247 syn keyword cConstant E2BIG EACCES EAGAIN EBADF EBADMSG EBUSY
248 syn keyword cConstant ECANCELED ECHILD EDEADLK EDOM EEXIST EFAULT
249 syn keyword cConstant EFBIG EILSEQ EINPROGRESS EINTR EINVAL EIO EISDIR
250 syn keyword cConstant EMFILE EMLINK EMSGSIZE ENAMETOOLONG ENFILE ENODEV
251 syn keyword cConstant ENOENT ENOEXEC ENOLCK ENOMEM ENOSPC ENOSYS
252 syn keyword cConstant ENOTDIR ENOTEMPTY ENOTSUP ENOTTY ENXIO EPERM
253 syn keyword cConstant EPIPE ERANGE EROFS ESPIPE ESRCH ETIMEDOUT EXDEV
255 syn keyword cConstant M_E M_LOG2E M_LOG10E M_LN2 M_LN10 M_PI M_PI_2 M_PI_4
256 syn keyword cConstant M_1_PI M_2_PI M_2_SQRTPI M_SQRT2 M_SQRT1_2
258 if !exists("c_no_c99") " ISO C99
259 syn keyword cConstant true false
262 " Accept %: for # (C99)
263 syn region cPreCondit start="^\s*\(%:\|#\)\s*\(if\|ifdef\|ifndef\|elif\)\>" skip="\\$" end="$" end="//"me=s-1 contains=cComment,cCppString,cCharacter,cCppParen,cParenError,cNumbers,cCommentError,cSpaceError
264 syn match cPreCondit display "^\s*\(%:\|#\)\s*\(else\|endif\)\>"
265 if !exists("c_no_if0")
266 if !exists("c_no_if0_fold")
267 syn region cCppOut start="^\s*\(%:\|#\)\s*if\s\+0\+\>" end=".\@=\|$" contains=cCppOut2 fold
269 syn region cCppOut start="^\s*\(%:\|#\)\s*if\s\+0\+\>" end=".\@=\|$" contains=cCppOut2
271 syn region cCppOut2 contained start="0" end="^\s*\(%:\|#\)\s*\(endif\>\|else\>\|elif\>\)" contains=cSpaceError,cCppSkip
272 syn region cCppSkip contained start="^\s*\(%:\|#\)\s*\(if\>\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*\(%:\|#\)\s*endif\>" contains=cSpaceError,cCppSkip
274 syn region cIncluded display contained start=+"+ skip=+\\\\\|\\"+ end=+"+
275 syn match cIncluded display contained "<[^>]*>"
276 syn match cInclude display "^\s*\(%:\|#\)\s*include\>\s*["<]" contains=cIncluded
277 "syn match cLineSkip "\\$"
278 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
279 syn region cDefine start="^\s*\(%:\|#\)\s*\(define\|undef\)\>" skip="\\$" end="$" end="//"me=s-1 keepend contains=ALLBUT,@cPreProcGroup,@Spell
280 syn region cPreProc start="^\s*\(%:\|#\)\s*\(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)" skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell
282 " Highlight User Labels
283 syn cluster cMultiGroup contains=cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserCont,cUserLabel,cBitField,cOctalZero,cCppOut,cCppOut2,cCppSkip,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom,cCppParen,cCppBracket,cCppString
284 syn region cMulti transparent start='?' skip='::' end=':' contains=ALLBUT,@cMultiGroup,@Spell
285 " Avoid matching foo::bar() in C++ by requiring that the next char is not ':'
286 syn cluster cLabelGroup contains=cUserLabel
287 syn match cUserCont display "^\s*\I\i*\s*:$" contains=@cLabelGroup
288 syn match cUserCont display ";\s*\I\i*\s*:$" contains=@cLabelGroup
289 syn match cUserCont display "^\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
290 syn match cUserCont display ";\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
292 syn match cUserLabel display "\I\i*" contained
294 " Avoid recognizing most bitfields as labels
295 syn match cBitField display "^\s*\I\i*\s*:\s*[1-9]"me=e-1 contains=cType
296 syn match cBitField display ";\s*\I\i*\s*:\s*[1-9]"me=e-1 contains=cType
298 if exists("c_minlines")
299 let b:c_minlines = c_minlines
301 if !exists("c_no_if0")
302 let b:c_minlines = 50 " #if 0 constructs can be long
304 let b:c_minlines = 15 " mostly for () constructs
307 exec "syn sync ccomment cComment minlines=" . b:c_minlines
309 " Define the default highlighting.
310 " Only used when an item doesn't have highlighting yet
311 hi def link cFormat cSpecial
312 hi def link cCppString cString
313 hi def link cCommentL cComment
314 hi def link cCommentStart cComment
315 hi def link cLabel Label
316 hi def link cUserLabel Label
317 hi def link cConditional Conditional
318 hi def link cRepeat Repeat
319 hi def link cCharacter Character
320 hi def link cSpecialCharacter cSpecial
321 hi def link cNumber Number
322 hi def link cOctal Number
323 hi def link cOctalZero PreProc " link this to Error if you want
324 hi def link cFloat Float
325 hi def link cOctalError cError
326 hi def link cParenError cError
327 hi def link cErrInParen cError
328 hi def link cErrInBracket cError
329 hi def link cCommentError cError
330 hi def link cCommentStartError cError
331 hi def link cSpaceError cError
332 hi def link cSpecialError cError
333 hi def link cOperator Operator
334 hi def link cStructure Structure
335 hi def link cStorageClass StorageClass
336 hi def link cInclude Include
337 hi def link cPreProc PreProc
338 hi def link cDefine Macro
339 hi def link cIncluded cString
340 hi def link cError Error
341 hi def link cStatement Statement
342 hi def link cPreCondit PreCondit
343 hi def link cType Type
344 hi def link cConstant Constant
345 hi def link cCommentString cString
346 hi def link cComment2String cString
347 hi def link cCommentSkip cComment
348 hi def link cString String
349 hi def link cComment Comment
350 hi def link cSpecial SpecialChar
351 hi def link cTodo Todo
352 hi def link cCppSkip cCppOut
353 hi def link cCppOut2 cCppOut
354 hi def link cCppOut Comment
356 let b:current_syntax = "c"