3 " Maintainer: Bram Moolenaar <Bram@vim.org>
4 " Last Change: 2006 May 01
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 "catch errors caused by wrong parenthesis and brackets
68 " also accept <% for {, %> for }, <: for [ and :> for ] (C99)
69 " But avoid matching <::.
70 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
71 if exists("c_no_curly_error")
72 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cCppString,@Spell
73 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
74 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
75 syn match cParenError display ")"
76 syn match cErrInParen display contained "^[{}]\|^<%\|^%>"
77 elseif exists("c_no_bracket_error")
78 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cCppString,@Spell
79 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
80 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
81 syn match cParenError display ")"
82 syn match cErrInParen display contained "[{}]\|<%\|%>"
84 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell
85 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
86 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cErrInBracket,cParen,cBracket,cString,@Spell
87 syn match cParenError display "[\])]"
88 syn match cErrInParen display contained "[\]{}]\|<%\|%>"
89 syn region cBracket transparent start='\[\|<::\@!' end=']\|:>' contains=ALLBUT,@cParenGroup,cErrInParen,cCppParen,cCppBracket,cCppString,@Spell
90 " cCppBracket: same as cParen but ends at end-of-line; used in cDefine
91 syn region cCppBracket transparent start='\[\|<::\@!' skip='\\$' excludenl end=']\|:>' end='$' contained contains=ALLBUT,@cParenGroup,cErrInParen,cParen,cBracket,cString,@Spell
92 syn match cErrInBracket display contained "[);{}]\|<%\|%>"
95 "integer number, or floating point number without a dot and with "f".
97 syn match cNumbers display transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctalError,cOctal
98 " Same, but without octal error (for comments)
99 syn match cNumbersCom display contained transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctal
100 syn match cNumber display contained "\d\+\(u\=l\{0,2}\|ll\=u\)\>"
102 syn match cNumber display contained "0x\x\+\(u\=l\{0,2}\|ll\=u\)\>"
103 " Flag the first zero of an octal number as something special
104 syn match cOctal display contained "0\o\+\(u\=l\{0,2}\|ll\=u\)\>" contains=cOctalZero
105 syn match cOctalZero display contained "\<0"
106 syn match cFloat display contained "\d\+f"
107 "floating point number, with dot, optional exponent
108 syn match cFloat display contained "\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\="
109 "floating point number, starting with a dot, optional exponent
110 syn match cFloat display contained "\.\d\+\(e[-+]\=\d\+\)\=[fl]\=\>"
111 "floating point number, without dot, with exponent
112 syn match cFloat display contained "\d\+e[-+]\=\d\+[fl]\=\>"
113 if !exists("c_no_c99")
114 "hexadecimal floating point number, optional leading digits, with dot, with exponent
115 syn match cFloat display contained "0x\x*\.\x\+p[-+]\=\d\+[fl]\=\>"
116 "hexadecimal floating point number, with leading digits, optional dot, with exponent
117 syn match cFloat display contained "0x\x\+\.\=p[-+]\=\d\+[fl]\=\>"
120 " flag an octal number with wrong digits
121 syn match cOctalError display contained "0\o*[89]\d*"
124 if exists("c_comment_strings")
125 " A comment can contain cString, cCharacter and cNumber.
126 " But a "*/" inside a cString in a cComment DOES end the comment! So we
127 " need to use a special type of cString: cCommentString, which also ends on
128 " "*/", and sees a "*" at the start of the line as comment again.
129 " Unfortunately this doesn't very well work for // type of comments :-(
130 syntax match cCommentSkip contained "^\s*\*\($\|\s\+\)"
131 syntax region cCommentString contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end=+\*/+me=s-1 contains=cSpecial,cCommentSkip
132 syntax region cComment2String contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end="$" contains=cSpecial
133 syntax region cCommentL start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cComment2String,cCharacter,cNumbersCom,cSpaceError,@Spell
134 if exists("c_no_comment_fold")
135 syntax region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell
137 syntax region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell fold
140 syn region cCommentL start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cSpaceError,@Spell
141 if exists("c_no_comment_fold")
142 syn region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell
144 syn region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell fold
147 " keep a // comment separately, it terminates a preproc. conditional
148 syntax match cCommentError display "\*/"
149 syntax match cCommentStartError display "/\*"me=e-1 contained
151 syntax region cBlock start="{" end="}" transparent fold
153 syn keyword cOperator sizeof
155 syn keyword cStatement __asm__
156 syn keyword cOperator typeof __real__ __imag__
158 syn keyword cType int long short char void
159 syn keyword cType signed unsigned float double
160 if !exists("c_no_ansi") || exists("c_ansi_typedefs")
161 syn keyword cType size_t ssize_t wchar_t ptrdiff_t sig_atomic_t fpos_t
162 syn keyword cType clock_t time_t va_list jmp_buf FILE DIR div_t ldiv_t
163 syn keyword cType mbstate_t wctrans_t wint_t wctype_t
165 if !exists("c_no_c99") " ISO C99
166 syn keyword cType bool complex
167 syn keyword cType int8_t int16_t int32_t int64_t
168 syn keyword cType uint8_t uint16_t uint32_t uint64_t
169 syn keyword cType int_least8_t int_least16_t int_least32_t int_least64_t
170 syn keyword cType uint_least8_t uint_least16_t uint_least32_t uint_least64_t
171 syn keyword cType int_fast8_t int_fast16_t int_fast32_t int_fast64_t
172 syn keyword cType uint_fast8_t uint_fast16_t uint_fast32_t uint_fast64_t
173 syn keyword cType intptr_t uintptr_t
174 syn keyword cType intmax_t uintmax_t
177 syn keyword cType __label__ __complex__ __volatile__
180 syn keyword cStructure struct union enum typedef
181 syn keyword cStorageClass static register auto volatile extern const
183 syn keyword cStorageClass inline __attribute__
185 if !exists("c_no_c99")
186 syn keyword cStorageClass inline restrict
189 if !exists("c_no_ansi") || exists("c_ansi_constants") || exists("c_gnu")
191 syn keyword cConstant __GNUC__ __FUNCTION__ __PRETTY_FUNCTION__ __func__
193 syn keyword cConstant __LINE__ __FILE__ __DATE__ __TIME__ __STDC__
194 syn keyword cConstant __STDC_VERSION__
195 syn keyword cConstant CHAR_BIT MB_LEN_MAX MB_CUR_MAX
196 syn keyword cConstant UCHAR_MAX UINT_MAX ULONG_MAX USHRT_MAX
197 syn keyword cConstant CHAR_MIN INT_MIN LONG_MIN SHRT_MIN
198 syn keyword cConstant CHAR_MAX INT_MAX LONG_MAX SHRT_MAX
199 syn keyword cConstant SCHAR_MIN SINT_MIN SLONG_MIN SSHRT_MIN
200 syn keyword cConstant SCHAR_MAX SINT_MAX SLONG_MAX SSHRT_MAX
201 if !exists("c_no_c99")
202 syn keyword cConstant __func__
203 syn keyword cConstant LLONG_MAX ULLONG_MAX
204 syn keyword cConstant INT8_MIN INT16_MIN INT32_MIN INT64_MIN
205 syn keyword cConstant INT8_MAX INT16_MAX INT32_MAX INT64_MAX
206 syn keyword cConstant UINT8_MAX UINT16_MAX UINT32_MAX UINT64_MAX
207 syn keyword cConstant INT_LEAST8_MIN INT_LEAST16_MIN INT_LEAST32_MIN INT_LEAST64_MIN
208 syn keyword cConstant INT_LEAST8_MAX INT_LEAST16_MAX INT_LEAST32_MAX INT_LEAST64_MAX
209 syn keyword cConstant UINT_LEAST8_MAX UINT_LEAST16_MAX UINT_LEAST32_MAX UINT_LEAST64_MAX
210 syn keyword cConstant INT_FAST8_MIN INT_FAST16_MIN INT_FAST32_MIN INT_FAST64_MIN
211 syn keyword cConstant INT_FAST8_MAX INT_FAST16_MAX INT_FAST32_MAX INT_FAST64_MAX
212 syn keyword cConstant UINT_FAST8_MAX UINT_FAST16_MAX UINT_FAST32_MAX UINT_FAST64_MAX
213 syn keyword cConstant INTPTR_MIN INTPTR_MAX UINTPTR_MAX
214 syn keyword cConstant INTMAX_MIN INTMAX_MAX UINTMAX_MAX
215 syn keyword cConstant PTRDIFF_MIN PTRDIFF_MAX SIG_ATOMIC_MIN SIG_ATOMIC_MAX
216 syn keyword cConstant SIZE_MAX WCHAR_MIN WCHAR_MAX WINT_MIN WINT_MAX
218 syn keyword cConstant FLT_RADIX FLT_ROUNDS
219 syn keyword cConstant FLT_DIG FLT_MANT_DIG FLT_EPSILON
220 syn keyword cConstant DBL_DIG DBL_MANT_DIG DBL_EPSILON
221 syn keyword cConstant LDBL_DIG LDBL_MANT_DIG LDBL_EPSILON
222 syn keyword cConstant FLT_MIN FLT_MAX FLT_MIN_EXP FLT_MAX_EXP
223 syn keyword cConstant FLT_MIN_10_EXP FLT_MAX_10_EXP
224 syn keyword cConstant DBL_MIN DBL_MAX DBL_MIN_EXP DBL_MAX_EXP
225 syn keyword cConstant DBL_MIN_10_EXP DBL_MAX_10_EXP
226 syn keyword cConstant LDBL_MIN LDBL_MAX LDBL_MIN_EXP LDBL_MAX_EXP
227 syn keyword cConstant LDBL_MIN_10_EXP LDBL_MAX_10_EXP
228 syn keyword cConstant HUGE_VAL CLOCKS_PER_SEC NULL
229 syn keyword cConstant LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY
230 syn keyword cConstant LC_NUMERIC LC_TIME
231 syn keyword cConstant SIG_DFL SIG_ERR SIG_IGN
232 syn keyword cConstant SIGABRT SIGFPE SIGILL SIGHUP SIGINT SIGSEGV SIGTERM
233 " Add POSIX signals as well...
234 syn keyword cConstant SIGABRT SIGALRM SIGCHLD SIGCONT SIGFPE SIGHUP
235 syn keyword cConstant SIGILL SIGINT SIGKILL SIGPIPE SIGQUIT SIGSEGV
236 syn keyword cConstant SIGSTOP SIGTERM SIGTRAP SIGTSTP SIGTTIN SIGTTOU
237 syn keyword cConstant SIGUSR1 SIGUSR2
238 syn keyword cConstant _IOFBF _IOLBF _IONBF BUFSIZ EOF WEOF
239 syn keyword cConstant FOPEN_MAX FILENAME_MAX L_tmpnam
240 syn keyword cConstant SEEK_CUR SEEK_END SEEK_SET
241 syn keyword cConstant TMP_MAX stderr stdin stdout
242 syn keyword cConstant EXIT_FAILURE EXIT_SUCCESS RAND_MAX
243 " Add POSIX errors as well
244 syn keyword cConstant E2BIG EACCES EAGAIN EBADF EBADMSG EBUSY
245 syn keyword cConstant ECANCELED ECHILD EDEADLK EDOM EEXIST EFAULT
246 syn keyword cConstant EFBIG EILSEQ EINPROGRESS EINTR EINVAL EIO EISDIR
247 syn keyword cConstant EMFILE EMLINK EMSGSIZE ENAMETOOLONG ENFILE ENODEV
248 syn keyword cConstant ENOENT ENOEXEC ENOLCK ENOMEM ENOSPC ENOSYS
249 syn keyword cConstant ENOTDIR ENOTEMPTY ENOTSUP ENOTTY ENXIO EPERM
250 syn keyword cConstant EPIPE ERANGE EROFS ESPIPE ESRCH ETIMEDOUT EXDEV
252 syn keyword cConstant M_E M_LOG2E M_LOG10E M_LN2 M_LN10 M_PI M_PI_2 M_PI_4
253 syn keyword cConstant M_1_PI M_2_PI M_2_SQRTPI M_SQRT2 M_SQRT1_2
255 if !exists("c_no_c99") " ISO C99
256 syn keyword cConstant true false
259 " Accept %: for # (C99)
260 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
261 syn match cPreCondit display "^\s*\(%:\|#\)\s*\(else\|endif\)\>"
262 if !exists("c_no_if0")
263 if !exists("c_no_if0_fold")
264 syn region cCppOut start="^\s*\(%:\|#\)\s*if\s\+0\+\>" end=".\@=\|$" contains=cCppOut2 fold
266 syn region cCppOut start="^\s*\(%:\|#\)\s*if\s\+0\+\>" end=".\@=\|$" contains=cCppOut2
268 syn region cCppOut2 contained start="0" end="^\s*\(%:\|#\)\s*\(endif\>\|else\>\|elif\>\)" contains=cSpaceError,cCppSkip
269 syn region cCppSkip contained start="^\s*\(%:\|#\)\s*\(if\>\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*\(%:\|#\)\s*endif\>" contains=cSpaceError,cCppSkip
271 syn region cIncluded display contained start=+"+ skip=+\\\\\|\\"+ end=+"+
272 syn match cIncluded display contained "<[^>]*>"
273 syn match cInclude display "^\s*\(%:\|#\)\s*include\>\s*["<]" contains=cIncluded
274 "syn match cLineSkip "\\$"
275 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
276 syn region cDefine start="^\s*\(%:\|#\)\s*\(define\|undef\)\>" skip="\\$" end="$" end="//"me=s-1 contains=ALLBUT,@cPreProcGroup,@Spell
277 syn region cPreProc start="^\s*\(%:\|#\)\s*\(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)" skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell
279 " Highlight User Labels
280 syn cluster cMultiGroup contains=cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserCont,cUserLabel,cBitField,cOctalZero,cCppOut,cCppOut2,cCppSkip,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom,cCppParen,cCppBracket,cCppString
281 syn region cMulti transparent start='?' skip='::' end=':' contains=ALLBUT,@cMultiGroup,@Spell
282 " Avoid matching foo::bar() in C++ by requiring that the next char is not ':'
283 syn cluster cLabelGroup contains=cUserLabel
284 syn match cUserCont display "^\s*\I\i*\s*:$" contains=@cLabelGroup
285 syn match cUserCont display ";\s*\I\i*\s*:$" contains=@cLabelGroup
286 syn match cUserCont display "^\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
287 syn match cUserCont display ";\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
289 syn match cUserLabel display "\I\i*" contained
291 " Avoid recognizing most bitfields as labels
292 syn match cBitField display "^\s*\I\i*\s*:\s*[1-9]"me=e-1 contains=cType
293 syn match cBitField display ";\s*\I\i*\s*:\s*[1-9]"me=e-1 contains=cType
295 if exists("c_minlines")
296 let b:c_minlines = c_minlines
298 if !exists("c_no_if0")
299 let b:c_minlines = 50 " #if 0 constructs can be long
301 let b:c_minlines = 15 " mostly for () constructs
304 exec "syn sync ccomment cComment minlines=" . b:c_minlines
306 " Define the default highlighting.
307 " Only used when an item doesn't have highlighting yet
308 hi def link cFormat cSpecial
309 hi def link cCppString cString
310 hi def link cCommentL cComment
311 hi def link cCommentStart cComment
312 hi def link cLabel Label
313 hi def link cUserLabel Label
314 hi def link cConditional Conditional
315 hi def link cRepeat Repeat
316 hi def link cCharacter Character
317 hi def link cSpecialCharacter cSpecial
318 hi def link cNumber Number
319 hi def link cOctal Number
320 hi def link cOctalZero PreProc " link this to Error if you want
321 hi def link cFloat Float
322 hi def link cOctalError cError
323 hi def link cParenError cError
324 hi def link cErrInParen cError
325 hi def link cErrInBracket cError
326 hi def link cCommentError cError
327 hi def link cCommentStartError cError
328 hi def link cSpaceError cError
329 hi def link cSpecialError cError
330 hi def link cOperator Operator
331 hi def link cStructure Structure
332 hi def link cStorageClass StorageClass
333 hi def link cInclude Include
334 hi def link cPreProc PreProc
335 hi def link cDefine Macro
336 hi def link cIncluded cString
337 hi def link cError Error
338 hi def link cStatement Statement
339 hi def link cPreCondit PreCondit
340 hi def link cType Type
341 hi def link cConstant Constant
342 hi def link cCommentString cString
343 hi def link cComment2String cString
344 hi def link cCommentSkip cComment
345 hi def link cString String
346 hi def link cComment Comment
347 hi def link cSpecial SpecialChar
348 hi def link cTodo Todo
349 hi def link cCppSkip cCppOut
350 hi def link cCppOut2 cCppOut
351 hi def link cCppOut Comment
353 let b:current_syntax = "c"