3 " Maintainer: Bram Moolenaar <Bram@vim.org>
4 " Last Change: 2008 Mar 19
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 if exists("c_curly_error")
69 syntax match cCurlyError "}"
70 syntax region cBlock start="{" end="}" contains=ALLBUT,cCurlyError,@cParenGroup,cErrInParen,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell fold
72 syntax region cBlock start="{" end="}" transparent fold
75 "catch errors caused by wrong parenthesis and brackets
76 " also accept <% for {, %> for }, <: for [ and :> for ] (C99)
77 " But avoid matching <::.
78 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
79 if exists("c_no_curly_error")
80 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cCppString,@Spell
81 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
82 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
83 syn match cParenError display ")"
84 syn match cErrInParen display contained "^[{}]\|^<%\|^%>"
85 elseif exists("c_no_bracket_error")
86 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cCppString,@Spell
87 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
88 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
89 syn match cParenError display ")"
90 syn match cErrInParen display contained "[{}]\|<%\|%>"
92 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell
93 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
94 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cErrInBracket,cParen,cBracket,cString,@Spell
95 syn match cParenError display "[\])]"
96 syn match cErrInParen display contained "[\]{}]\|<%\|%>"
97 syn region cBracket transparent start='\[\|<::\@!' end=']\|:>' contains=ALLBUT,@cParenGroup,cErrInParen,cCppParen,cCppBracket,cCppString,@Spell
98 " cCppBracket: same as cParen but ends at end-of-line; used in cDefine
99 syn region cCppBracket transparent start='\[\|<::\@!' skip='\\$' excludenl end=']\|:>' end='$' contained contains=ALLBUT,@cParenGroup,cErrInParen,cParen,cBracket,cString,@Spell
100 syn match cErrInBracket display contained "[);{}]\|<%\|%>"
103 "integer number, or floating point number without a dot and with "f".
105 syn match cNumbers display transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctalError,cOctal
106 " Same, but without octal error (for comments)
107 syn match cNumbersCom display contained transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctal
108 syn match cNumber display contained "\d\+\(u\=l\{0,2}\|ll\=u\)\>"
110 syn match cNumber display contained "0x\x\+\(u\=l\{0,2}\|ll\=u\)\>"
111 " Flag the first zero of an octal number as something special
112 syn match cOctal display contained "0\o\+\(u\=l\{0,2}\|ll\=u\)\>" contains=cOctalZero
113 syn match cOctalZero display contained "\<0"
114 syn match cFloat display contained "\d\+f"
115 "floating point number, with dot, optional exponent
116 syn match cFloat display contained "\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\="
117 "floating point number, starting with a dot, optional exponent
118 syn match cFloat display contained "\.\d\+\(e[-+]\=\d\+\)\=[fl]\=\>"
119 "floating point number, without dot, with exponent
120 syn match cFloat display contained "\d\+e[-+]\=\d\+[fl]\=\>"
121 if !exists("c_no_c99")
122 "hexadecimal floating point number, optional leading digits, with dot, with exponent
123 syn match cFloat display contained "0x\x*\.\x\+p[-+]\=\d\+[fl]\=\>"
124 "hexadecimal floating point number, with leading digits, optional dot, with exponent
125 syn match cFloat display contained "0x\x\+\.\=p[-+]\=\d\+[fl]\=\>"
128 " flag an octal number with wrong digits
129 syn match cOctalError display contained "0\o*[89]\d*"
132 if exists("c_comment_strings")
133 " A comment can contain cString, cCharacter and cNumber.
134 " But a "*/" inside a cString in a cComment DOES end the comment! So we
135 " need to use a special type of cString: cCommentString, which also ends on
136 " "*/", and sees a "*" at the start of the line as comment again.
137 " Unfortunately this doesn't very well work for // type of comments :-(
138 syntax match cCommentSkip contained "^\s*\*\($\|\s\+\)"
139 syntax region cCommentString contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end=+\*/+me=s-1 contains=cSpecial,cCommentSkip
140 syntax region cComment2String contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end="$" contains=cSpecial
141 syntax region cCommentL start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cComment2String,cCharacter,cNumbersCom,cSpaceError,@Spell
142 if exists("c_no_comment_fold")
143 " Use "extend" here to have preprocessor lines not terminate halfway a
145 syntax region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell extend
147 syntax region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell fold extend
150 syn region cCommentL start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cSpaceError,@Spell
151 if exists("c_no_comment_fold")
152 syn region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell extend
154 syn region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell fold extend
157 " keep a // comment separately, it terminates a preproc. conditional
158 syntax match cCommentError display "\*/"
159 syntax match cCommentStartError display "/\*"me=e-1 contained
161 syn keyword cOperator sizeof
163 syn keyword cStatement __asm__
164 syn keyword cOperator typeof __real__ __imag__
166 syn keyword cType int long short char void
167 syn keyword cType signed unsigned float double
168 if !exists("c_no_ansi") || exists("c_ansi_typedefs")
169 syn keyword cType size_t ssize_t off_t wchar_t ptrdiff_t sig_atomic_t fpos_t
170 syn keyword cType clock_t time_t va_list jmp_buf FILE DIR div_t ldiv_t
171 syn keyword cType mbstate_t wctrans_t wint_t wctype_t
173 if !exists("c_no_c99") " ISO C99
174 syn keyword cType bool complex
175 syn keyword cType int8_t int16_t int32_t int64_t
176 syn keyword cType uint8_t uint16_t uint32_t uint64_t
177 syn keyword cType int_least8_t int_least16_t int_least32_t int_least64_t
178 syn keyword cType uint_least8_t uint_least16_t uint_least32_t uint_least64_t
179 syn keyword cType int_fast8_t int_fast16_t int_fast32_t int_fast64_t
180 syn keyword cType uint_fast8_t uint_fast16_t uint_fast32_t uint_fast64_t
181 syn keyword cType intptr_t uintptr_t
182 syn keyword cType intmax_t uintmax_t
185 syn keyword cType __label__ __complex__ __volatile__
188 syn keyword cStructure struct union enum typedef
189 syn keyword cStorageClass static register auto volatile extern const
191 syn keyword cStorageClass inline __attribute__
193 if !exists("c_no_c99")
194 syn keyword cStorageClass inline restrict
197 if !exists("c_no_ansi") || exists("c_ansi_constants") || exists("c_gnu")
199 syn keyword cConstant __GNUC__ __FUNCTION__ __PRETTY_FUNCTION__ __func__
201 syn keyword cConstant __LINE__ __FILE__ __DATE__ __TIME__ __STDC__
202 syn keyword cConstant __STDC_VERSION__
203 syn keyword cConstant CHAR_BIT MB_LEN_MAX MB_CUR_MAX
204 syn keyword cConstant UCHAR_MAX UINT_MAX ULONG_MAX USHRT_MAX
205 syn keyword cConstant CHAR_MIN INT_MIN LONG_MIN SHRT_MIN
206 syn keyword cConstant CHAR_MAX INT_MAX LONG_MAX SHRT_MAX
207 syn keyword cConstant SCHAR_MIN SINT_MIN SLONG_MIN SSHRT_MIN
208 syn keyword cConstant SCHAR_MAX SINT_MAX SLONG_MAX SSHRT_MAX
209 if !exists("c_no_c99")
210 syn keyword cConstant __func__
211 syn keyword cConstant LLONG_MIN LLONG_MAX ULLONG_MAX
212 syn keyword cConstant INT8_MIN INT16_MIN INT32_MIN INT64_MIN
213 syn keyword cConstant INT8_MAX INT16_MAX INT32_MAX INT64_MAX
214 syn keyword cConstant UINT8_MAX UINT16_MAX UINT32_MAX UINT64_MAX
215 syn keyword cConstant INT_LEAST8_MIN INT_LEAST16_MIN INT_LEAST32_MIN INT_LEAST64_MIN
216 syn keyword cConstant INT_LEAST8_MAX INT_LEAST16_MAX INT_LEAST32_MAX INT_LEAST64_MAX
217 syn keyword cConstant UINT_LEAST8_MAX UINT_LEAST16_MAX UINT_LEAST32_MAX UINT_LEAST64_MAX
218 syn keyword cConstant INT_FAST8_MIN INT_FAST16_MIN INT_FAST32_MIN INT_FAST64_MIN
219 syn keyword cConstant INT_FAST8_MAX INT_FAST16_MAX INT_FAST32_MAX INT_FAST64_MAX
220 syn keyword cConstant UINT_FAST8_MAX UINT_FAST16_MAX UINT_FAST32_MAX UINT_FAST64_MAX
221 syn keyword cConstant INTPTR_MIN INTPTR_MAX UINTPTR_MAX
222 syn keyword cConstant INTMAX_MIN INTMAX_MAX UINTMAX_MAX
223 syn keyword cConstant PTRDIFF_MIN PTRDIFF_MAX SIG_ATOMIC_MIN SIG_ATOMIC_MAX
224 syn keyword cConstant SIZE_MAX WCHAR_MIN WCHAR_MAX WINT_MIN WINT_MAX
226 syn keyword cConstant FLT_RADIX FLT_ROUNDS
227 syn keyword cConstant FLT_DIG FLT_MANT_DIG FLT_EPSILON
228 syn keyword cConstant DBL_DIG DBL_MANT_DIG DBL_EPSILON
229 syn keyword cConstant LDBL_DIG LDBL_MANT_DIG LDBL_EPSILON
230 syn keyword cConstant FLT_MIN FLT_MAX FLT_MIN_EXP FLT_MAX_EXP
231 syn keyword cConstant FLT_MIN_10_EXP FLT_MAX_10_EXP
232 syn keyword cConstant DBL_MIN DBL_MAX DBL_MIN_EXP DBL_MAX_EXP
233 syn keyword cConstant DBL_MIN_10_EXP DBL_MAX_10_EXP
234 syn keyword cConstant LDBL_MIN LDBL_MAX LDBL_MIN_EXP LDBL_MAX_EXP
235 syn keyword cConstant LDBL_MIN_10_EXP LDBL_MAX_10_EXP
236 syn keyword cConstant HUGE_VAL CLOCKS_PER_SEC NULL
237 syn keyword cConstant LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY
238 syn keyword cConstant LC_NUMERIC LC_TIME
239 syn keyword cConstant SIG_DFL SIG_ERR SIG_IGN
240 syn keyword cConstant SIGABRT SIGFPE SIGILL SIGHUP SIGINT SIGSEGV SIGTERM
241 " Add POSIX signals as well...
242 syn keyword cConstant SIGABRT SIGALRM SIGCHLD SIGCONT SIGFPE SIGHUP
243 syn keyword cConstant SIGILL SIGINT SIGKILL SIGPIPE SIGQUIT SIGSEGV
244 syn keyword cConstant SIGSTOP SIGTERM SIGTRAP SIGTSTP SIGTTIN SIGTTOU
245 syn keyword cConstant SIGUSR1 SIGUSR2
246 syn keyword cConstant _IOFBF _IOLBF _IONBF BUFSIZ EOF WEOF
247 syn keyword cConstant FOPEN_MAX FILENAME_MAX L_tmpnam
248 syn keyword cConstant SEEK_CUR SEEK_END SEEK_SET
249 syn keyword cConstant TMP_MAX stderr stdin stdout
250 syn keyword cConstant EXIT_FAILURE EXIT_SUCCESS RAND_MAX
251 " Add POSIX errors as well
252 syn keyword cConstant E2BIG EACCES EAGAIN EBADF EBADMSG EBUSY
253 syn keyword cConstant ECANCELED ECHILD EDEADLK EDOM EEXIST EFAULT
254 syn keyword cConstant EFBIG EILSEQ EINPROGRESS EINTR EINVAL EIO EISDIR
255 syn keyword cConstant EMFILE EMLINK EMSGSIZE ENAMETOOLONG ENFILE ENODEV
256 syn keyword cConstant ENOENT ENOEXEC ENOLCK ENOMEM ENOSPC ENOSYS
257 syn keyword cConstant ENOTDIR ENOTEMPTY ENOTSUP ENOTTY ENXIO EPERM
258 syn keyword cConstant EPIPE ERANGE EROFS ESPIPE ESRCH ETIMEDOUT EXDEV
260 syn keyword cConstant M_E M_LOG2E M_LOG10E M_LN2 M_LN10 M_PI M_PI_2 M_PI_4
261 syn keyword cConstant M_1_PI M_2_PI M_2_SQRTPI M_SQRT2 M_SQRT1_2
263 if !exists("c_no_c99") " ISO C99
264 syn keyword cConstant true false
267 " Accept %: for # (C99)
268 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
269 syn match cPreCondit display "^\s*\(%:\|#\)\s*\(else\|endif\)\>"
270 if !exists("c_no_if0")
271 if !exists("c_no_if0_fold")
272 syn region cCppOut start="^\s*\(%:\|#\)\s*if\s\+0\+\>" end=".\@=\|$" contains=cCppOut2 fold
274 syn region cCppOut start="^\s*\(%:\|#\)\s*if\s\+0\+\>" end=".\@=\|$" contains=cCppOut2
276 syn region cCppOut2 contained start="0" end="^\s*\(%:\|#\)\s*\(endif\>\|else\>\|elif\>\)" contains=cSpaceError,cCppSkip
277 syn region cCppSkip contained start="^\s*\(%:\|#\)\s*\(if\>\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*\(%:\|#\)\s*endif\>" contains=cSpaceError,cCppSkip
279 syn region cIncluded display contained start=+"+ skip=+\\\\\|\\"+ end=+"+
280 syn match cIncluded display contained "<[^>]*>"
281 syn match cInclude display "^\s*\(%:\|#\)\s*include\>\s*["<]" contains=cIncluded
282 "syn match cLineSkip "\\$"
283 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
284 syn region cDefine start="^\s*\(%:\|#\)\s*\(define\|undef\)\>" skip="\\$" end="$" end="//"me=s-1 keepend contains=ALLBUT,@cPreProcGroup,@Spell
285 syn region cPreProc start="^\s*\(%:\|#\)\s*\(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)" skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell
287 " Highlight User Labels
288 syn cluster cMultiGroup contains=cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserCont,cUserLabel,cBitField,cOctalZero,cCppOut,cCppOut2,cCppSkip,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom,cCppParen,cCppBracket,cCppString
289 syn region cMulti transparent start='?' skip='::' end=':' contains=ALLBUT,@cMultiGroup,@Spell
290 " Avoid matching foo::bar() in C++ by requiring that the next char is not ':'
291 syn cluster cLabelGroup contains=cUserLabel
292 syn match cUserCont display "^\s*\I\i*\s*:$" contains=@cLabelGroup
293 syn match cUserCont display ";\s*\I\i*\s*:$" contains=@cLabelGroup
294 syn match cUserCont display "^\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
295 syn match cUserCont display ";\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
297 syn match cUserLabel display "\I\i*" contained
299 " Avoid recognizing most bitfields as labels
300 syn match cBitField display "^\s*\I\i*\s*:\s*[1-9]"me=e-1 contains=cType
301 syn match cBitField display ";\s*\I\i*\s*:\s*[1-9]"me=e-1 contains=cType
303 if exists("c_minlines")
304 let b:c_minlines = c_minlines
306 if !exists("c_no_if0")
307 let b:c_minlines = 50 " #if 0 constructs can be long
309 let b:c_minlines = 15 " mostly for () constructs
312 if exists("c_curly_error")
315 exec "syn sync ccomment cComment minlines=" . b:c_minlines
318 " Define the default highlighting.
319 " Only used when an item doesn't have highlighting yet
320 hi def link cFormat cSpecial
321 hi def link cCppString cString
322 hi def link cCommentL cComment
323 hi def link cCommentStart cComment
324 hi def link cLabel Label
325 hi def link cUserLabel Label
326 hi def link cConditional Conditional
327 hi def link cRepeat Repeat
328 hi def link cCharacter Character
329 hi def link cSpecialCharacter cSpecial
330 hi def link cNumber Number
331 hi def link cOctal Number
332 hi def link cOctalZero PreProc " link this to Error if you want
333 hi def link cFloat Float
334 hi def link cOctalError cError
335 hi def link cParenError cError
336 hi def link cErrInParen cError
337 hi def link cErrInBracket cError
338 hi def link cCommentError cError
339 hi def link cCommentStartError cError
340 hi def link cSpaceError cError
341 hi def link cSpecialError cError
342 hi def link cCurlyError cError
343 hi def link cOperator Operator
344 hi def link cStructure Structure
345 hi def link cStorageClass StorageClass
346 hi def link cInclude Include
347 hi def link cPreProc PreProc
348 hi def link cDefine Macro
349 hi def link cIncluded cString
350 hi def link cError Error
351 hi def link cStatement Statement
352 hi def link cPreCondit PreCondit
353 hi def link cType Type
354 hi def link cConstant Constant
355 hi def link cCommentString cString
356 hi def link cComment2String cString
357 hi def link cCommentSkip cComment
358 hi def link cString String
359 hi def link cComment Comment
360 hi def link cSpecial SpecialChar
361 hi def link cTodo Todo
362 hi def link cCppSkip cCppOut
363 hi def link cCppOut2 cCppOut
364 hi def link cCppOut Comment
366 let b:current_syntax = "c"