Lucas De Marchi wrote:

> On Wed, May 2, 2012 at 3:55 PM, Bram Moolenaar <[email protected]> wrote:
> > The problem is that when we allow {} inside () then there is no way to
> > check for a missing ).  Therefore this is optional.
> > You can set the c_no_curly_error variable, see ":help c.vim".
> 
> After setting that, { inside ( was not marked as an error, but the bug
> remained. The rest of the file is highlighted as if it was inside the
> string :(

Hmm, there are some weird dependencies with extend and keepend.  Try the
c.vim file below.  It might introduce new problems though.


" Vim syntax file
" Language:     C
" Maintainer:   Bram Moolenaar <[email protected]>
" Last Change:  2012 May 03

" Quit when a (custom) syntax file was already loaded
if exists("b:current_syntax")
  finish
endif

let s:cpo_save = &cpo
set cpo&vim

" A bunch of useful C keywords
syn keyword     cStatement      goto break return continue asm
syn keyword     cLabel          case default
syn keyword     cConditional    if else switch
syn keyword     cRepeat         while for do

syn keyword     cTodo           contained TODO FIXME XXX

" It's easy to accidentally add a space after a backslash that was intended
" for line continuation.  Some compilers allow it, which makes it
" unpredicatable and should be avoided.
syn match       cBadContinuation contained "\\\s\+$"

" cCommentGroup allows adding matches for special things in comments
syn cluster     cCommentGroup   contains=cTodo,cBadContinuation

" String and Character constants
" Highlight special characters (those which have a backslash) differently
syn match       cSpecial        display contained "\\\(x\x\+\|\o\{1,3}\|.\|$\)"
if !exists("c_no_utf")
  syn match     cSpecial        display contained "\\\(u\x\{4}\|U\x\{8}\)"
endif
if exists("c_no_cformat")
  syn region    cString         start=+L\="+ skip=+\\\\\|\\"+ end=+"+ 
contains=cSpecial,@Spell extend
  " cCppString: same as cString, but ends at end of line
  syn region    cCppString      start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl 
end=+"+ end='$' contains=cSpecial,@Spell
else
  if !exists("c_no_c99") " ISO C99
    syn match   cFormat         display "%\(\d\+\$\)\=[-+' 
#0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlLjzt]\|ll\|hh\)\=\([aAbdiuoxXDOUfFeEgGcCsSpn]\|\[\^\=.[^]]*\]\)"
 contained
  else
    syn match   cFormat         display "%\(\d\+\$\)\=[-+' 
#0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlL]\|ll\)\=\([bdiuoxXDOUfeEgGcCsSpn]\|\[\^\=.[^]]*\]\)"
 contained
  endif
  syn match     cFormat         display "%%" contained
  syn region    cString         start=+L\="+ skip=+\\\\\|\\"+ end=+"+ 
contains=cSpecial,cFormat,@Spell extend
  " cCppString: same as cString, but ends at end of line
  syn region    cCppString      start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl 
end=+"+ end='$' contains=cSpecial,cFormat,@Spell
endif

syn match       cCharacter      "L\='[^\\]'"
syn match       cCharacter      "L'[^']*'" contains=cSpecial
if exists("c_gnu")
  syn match     cSpecialError   "L\='\\[^'\"?\\abefnrtv]'"
  syn match     cSpecialCharacter "L\='\\['\"?\\abefnrtv]'"
else
  syn match     cSpecialError   "L\='\\[^'\"?\\abfnrtv]'"
  syn match     cSpecialCharacter "L\='\\['\"?\\abfnrtv]'"
endif
syn match       cSpecialCharacter display "L\='\\\o\{1,3}'"
syn match       cSpecialCharacter display "'\\x\x\{1,2}'"
syn match       cSpecialCharacter display "L'\\x\x\+'"

if !exists("c_no_c11") " ISO C11
  if exists("c_no_cformat")
    syn region  cString         start=+\%(U\|u8\=\)"+ skip=+\\\\\|\\"+ end=+"+ 
contains=cSpecial,@Spell extend
  else
    syn region  cString         start=+\%(U\|u8\=\)"+ skip=+\\\\\|\\"+ end=+"+ 
contains=cSpecial,cFormat,@Spell extend
  endif
  syn match     cCharacter      "[Uu]'[^\\]'"
  syn match     cCharacter      "[Uu]'[^']*'" contains=cSpecial
  if exists("c_gnu")
    syn match   cSpecialError   "[Uu]'\\[^'\"?\\abefnrtv]'"
    syn match   cSpecialCharacter "[Uu]'\\['\"?\\abefnrtv]'"
  else
    syn match   cSpecialError   "[Uu]'\\[^'\"?\\abfnrtv]'"
    syn match   cSpecialCharacter "[Uu]'\\['\"?\\abfnrtv]'"
  endif
  syn match     cSpecialCharacter display "[Uu]'\\\o\{1,3}'"
  syn match     cSpecialCharacter display "[Uu]'\\x\x\+'"
endif

"when wanted, highlight trailing white space
if exists("c_space_errors")
  if !exists("c_no_trail_space_error")
    syn match   cSpaceError     display excludenl "\s\+$"
  endif
  if !exists("c_no_tab_space_error")
    syn match   cSpaceError     display " \+\t"me=e-1
  endif
endif

" This should be before cErrInParen to avoid problems with #define ({ xxx })
if exists("c_curly_error")
  syntax match cCurlyError "}"
  syntax region cBlock          start="{" end="}" 
contains=ALLBUT,cBadBlock,cCurlyError,@cParenGroup,cErrInParen,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell
 fold
else
  syntax region cBlock          start="{" end="}" transparent fold
endif

"catch errors caused by wrong parenthesis and brackets
" also accept <% for {, %> for }, <: for [ and :> for ] (C99)
" But avoid matching <::.
syn cluster     cParenGroup     
contains=cParenError,cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserCont,cUserLabel,cBitField,cOctalZero,@cCppOutInGroup,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom
if exists("c_no_curly_error")
  syn region    cParen          transparent start='(' end=')' end='}'me=s-1 
contains=ALLBUT,cBlock,@cParenGroup,cCppParen,cCppString,@Spell
  " cCppParen: same as cParen but ends at end-of-line; used in cDefine
  syn region    cCppParen       transparent start='(' skip='\\$' excludenl 
end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
  syn match     cParenError     display ")"
  syn match     cErrInParen     display contained "^[{}]\|^<%\|^%>"
elseif exists("c_no_bracket_error")
  syn region    cParen          transparent start='(' end=')' end='}'me=s-1 
contains=ALLBUT,cBlock,@cParenGroup,cCppParen,cCppString,@Spell
  " cCppParen: same as cParen but ends at end-of-line; used in cDefine
  syn region    cCppParen       transparent start='(' skip='\\$' excludenl 
end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
  syn match     cParenError     display ")"
  syn match     cErrInParen     display contained "[{}]\|<%\|%>"
else
  syn region    cParen          transparent start='(' end=')' end='}'me=s-1 
contains=ALLBUT,cBlock,@cParenGroup,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell
  " cCppParen: same as cParen but ends at end-of-line; used in cDefine
  syn region    cCppParen       transparent start='(' skip='\\$' excludenl 
end=')' end='$' contained 
contains=ALLBUT,@cParenGroup,cErrInBracket,cParen,cBracket,cString,@Spell
  syn match     cParenError     display "[\])]"
  syn match     cErrInParen     display contained "[\]{}]\|<%\|%>"
  syn region    cBracket        transparent start='\[\|<::\@!' end=']\|:>' 
end='}'me=s-1 
contains=ALLBUT,cBlock,@cParenGroup,cErrInParen,cCppParen,cCppBracket,cCppString,@Spell
  " cCppBracket: same as cParen but ends at end-of-line; used in cDefine
  syn region    cCppBracket     transparent start='\[\|<::\@!' skip='\\$' 
excludenl end=']\|:>' end='$' contained 
contains=ALLBUT,@cParenGroup,cErrInParen,cParen,cBracket,cString,@Spell
  syn match     cErrInBracket   display contained "[);{}]\|<%\|%>"
endif

syntax region   cBadBlock       keepend start="{" end="}" contained 
containedin=cParen,cBracket,cBadBlock transparent fold

"integer number, or floating point number without a dot and with "f".
syn case ignore
syn match       cNumbers        display transparent "\<\d\|\.\d" 
contains=cNumber,cFloat,cOctalError,cOctal
" Same, but without octal error (for comments)
syn match       cNumbersCom     display contained transparent "\<\d\|\.\d" 
contains=cNumber,cFloat,cOctal
syn match       cNumber         display contained "\d\+\(u\=l\{0,2}\|ll\=u\)\>"
"hex number
syn match       cNumber         display contained 
"0x\x\+\(u\=l\{0,2}\|ll\=u\)\>"
" Flag the first zero of an octal number as something special
syn match       cOctal          display contained 
"0\o\+\(u\=l\{0,2}\|ll\=u\)\>" contains=cOctalZero
syn match       cOctalZero      display contained "\<0"
syn match       cFloat          display contained "\d\+f"
"floating point number, with dot, optional exponent
syn match       cFloat          display contained 
"\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\="
"floating point number, starting with a dot, optional exponent
syn match       cFloat          display contained 
"\.\d\+\(e[-+]\=\d\+\)\=[fl]\=\>"
"floating point number, without dot, with exponent
syn match       cFloat          display contained "\d\+e[-+]\=\d\+[fl]\=\>"
if !exists("c_no_c99")
  "hexadecimal floating point number, optional leading digits, with dot, with 
exponent
  syn match     cFloat          display contained 
"0x\x*\.\x\+p[-+]\=\d\+[fl]\=\>"
  "hexadecimal floating point number, with leading digits, optional dot, with 
exponent
  syn match     cFloat          display contained 
"0x\x\+\.\=p[-+]\=\d\+[fl]\=\>"
endif

" flag an octal number with wrong digits
syn match       cOctalError     display contained "0\o*[89]\d*"
syn case match

if exists("c_comment_strings")
  " A comment can contain cString, cCharacter and cNumber.
  " But a "*/" inside a cString in a cComment DOES end the comment!  So we
  " need to use a special type of cString: cCommentString, which also ends on
  " "*/", and sees a "*" at the start of the line as comment again.
  " Unfortunately this doesn't very well work for // type of comments :-(
  syntax match  cCommentSkip    contained "^\s*\*\($\|\s\+\)"
  syntax region cCommentString  contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ 
end=+"+ end=+\*/+me=s-1 contains=cSpecial,cCommentSkip
  syntax region cComment2String contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ 
end=+"+ end="$" contains=cSpecial
  syntax region  cCommentL      start="//" skip="\\$" end="$" keepend 
contains=@cCommentGroup,cComment2String,cCharacter,cNumbersCom,cSpaceError,@Spell
  if exists("c_no_comment_fold")
    " Use "extend" here to have preprocessor lines not terminate halfway a
    " comment.
    syntax region cComment      matchgroup=cCommentStart start="/\*" end="\*/" 
contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell
 extend
  else
    syntax region cComment      matchgroup=cCommentStart start="/\*" end="\*/" 
contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell
 fold extend
  endif
else
  syn region    cCommentL       start="//" skip="\\$" end="$" keepend 
contains=@cCommentGroup,cSpaceError,@Spell
  if exists("c_no_comment_fold")
    syn region  cComment        matchgroup=cCommentStart start="/\*" end="\*/" 
contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell extend
  else
    syn region  cComment        matchgroup=cCommentStart start="/\*" end="\*/" 
contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell fold extend
  endif
endif
" keep a // comment separately, it terminates a preproc. conditional
syntax match    cCommentError   display "\*/"
syntax match    cCommentStartError display "/\*"me=e-1 contained

syn keyword     cOperator       sizeof
if exists("c_gnu")
  syn keyword   cStatement      __asm__
  syn keyword   cOperator       typeof __real__ __imag__
endif
syn keyword     cType           int long short char void
syn keyword     cType           signed unsigned float double
if !exists("c_no_ansi") || exists("c_ansi_typedefs")
  syn keyword   cType           size_t ssize_t off_t wchar_t ptrdiff_t 
sig_atomic_t fpos_t
  syn keyword   cType           clock_t time_t va_list jmp_buf FILE DIR div_t 
ldiv_t
  syn keyword   cType           mbstate_t wctrans_t wint_t wctype_t
endif
if !exists("c_no_c99") " ISO C99
  syn keyword   cType           _Bool bool _Complex complex _Imaginary imaginary
  syn keyword   cType           int8_t int16_t int32_t int64_t
  syn keyword   cType           uint8_t uint16_t uint32_t uint64_t
  syn keyword   cType           int_least8_t int_least16_t int_least32_t 
int_least64_t
  syn keyword   cType           uint_least8_t uint_least16_t uint_least32_t 
uint_least64_t
  syn keyword   cType           int_fast8_t int_fast16_t int_fast32_t 
int_fast64_t
  syn keyword   cType           uint_fast8_t uint_fast16_t uint_fast32_t 
uint_fast64_t
  syn keyword   cType           intptr_t uintptr_t
  syn keyword   cType           intmax_t uintmax_t
endif
if exists("c_gnu")
  syn keyword   cType           __label__ __complex__ __volatile__
endif

syn keyword     cStructure      struct union enum typedef
syn keyword     cStorageClass   static register auto volatile extern const
if exists("c_gnu")
  syn keyword   cStorageClass   inline __attribute__
endif
if !exists("c_no_c99")
  syn keyword   cStorageClass   inline restrict
endif
if !exists("c_no_c11")
  syn keyword   cStorageClass   _Alignas alignas
  syn keyword   cOperator       _Alignof alignof
  syn keyword   cStorageClass   _Atomic
  syn keyword   cOperator       _Generic
  syn keyword   cStorageClass   _Noreturn noreturn
  syn keyword   cOperator       _Static_assert static_assert
  syn keyword   cStorageClass   _Thread_local thread_local
  syn keyword   cType           char16_t char32_t
endif

if !exists("c_no_ansi") || exists("c_ansi_constants") || exists("c_gnu")
  if exists("c_gnu")
    syn keyword cConstant __GNUC__ __FUNCTION__ __PRETTY_FUNCTION__ __func__
  endif
  syn keyword cConstant __LINE__ __FILE__ __DATE__ __TIME__ __STDC__
  syn keyword cConstant __STDC_VERSION__
  syn keyword cConstant CHAR_BIT MB_LEN_MAX MB_CUR_MAX
  syn keyword cConstant UCHAR_MAX UINT_MAX ULONG_MAX USHRT_MAX
  syn keyword cConstant CHAR_MIN INT_MIN LONG_MIN SHRT_MIN
  syn keyword cConstant CHAR_MAX INT_MAX LONG_MAX SHRT_MAX
  syn keyword cConstant SCHAR_MIN SINT_MIN SLONG_MIN SSHRT_MIN
  syn keyword cConstant SCHAR_MAX SINT_MAX SLONG_MAX SSHRT_MAX
  if !exists("c_no_c99")
    syn keyword cConstant __func__
    syn keyword cConstant LLONG_MIN LLONG_MAX ULLONG_MAX
    syn keyword cConstant INT8_MIN INT16_MIN INT32_MIN INT64_MIN
    syn keyword cConstant INT8_MAX INT16_MAX INT32_MAX INT64_MAX
    syn keyword cConstant UINT8_MAX UINT16_MAX UINT32_MAX UINT64_MAX
    syn keyword cConstant INT_LEAST8_MIN INT_LEAST16_MIN INT_LEAST32_MIN 
INT_LEAST64_MIN
    syn keyword cConstant INT_LEAST8_MAX INT_LEAST16_MAX INT_LEAST32_MAX 
INT_LEAST64_MAX
    syn keyword cConstant UINT_LEAST8_MAX UINT_LEAST16_MAX UINT_LEAST32_MAX 
UINT_LEAST64_MAX
    syn keyword cConstant INT_FAST8_MIN INT_FAST16_MIN INT_FAST32_MIN 
INT_FAST64_MIN
    syn keyword cConstant INT_FAST8_MAX INT_FAST16_MAX INT_FAST32_MAX 
INT_FAST64_MAX
    syn keyword cConstant UINT_FAST8_MAX UINT_FAST16_MAX UINT_FAST32_MAX 
UINT_FAST64_MAX
    syn keyword cConstant INTPTR_MIN INTPTR_MAX UINTPTR_MAX
    syn keyword cConstant INTMAX_MIN INTMAX_MAX UINTMAX_MAX
    syn keyword cConstant PTRDIFF_MIN PTRDIFF_MAX SIG_ATOMIC_MIN SIG_ATOMIC_MAX
    syn keyword cConstant SIZE_MAX WCHAR_MIN WCHAR_MAX WINT_MIN WINT_MAX
  endif
  syn keyword cConstant FLT_RADIX FLT_ROUNDS
  syn keyword cConstant FLT_DIG FLT_MANT_DIG FLT_EPSILON
  syn keyword cConstant DBL_DIG DBL_MANT_DIG DBL_EPSILON
  syn keyword cConstant LDBL_DIG LDBL_MANT_DIG LDBL_EPSILON
  syn keyword cConstant FLT_MIN FLT_MAX FLT_MIN_EXP FLT_MAX_EXP
  syn keyword cConstant FLT_MIN_10_EXP FLT_MAX_10_EXP
  syn keyword cConstant DBL_MIN DBL_MAX DBL_MIN_EXP DBL_MAX_EXP
  syn keyword cConstant DBL_MIN_10_EXP DBL_MAX_10_EXP
  syn keyword cConstant LDBL_MIN LDBL_MAX LDBL_MIN_EXP LDBL_MAX_EXP
  syn keyword cConstant LDBL_MIN_10_EXP LDBL_MAX_10_EXP
  syn keyword cConstant HUGE_VAL CLOCKS_PER_SEC NULL
  syn keyword cConstant LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY
  syn keyword cConstant LC_NUMERIC LC_TIME
  syn keyword cConstant SIG_DFL SIG_ERR SIG_IGN
  syn keyword cConstant SIGABRT SIGFPE SIGILL SIGHUP SIGINT SIGSEGV SIGTERM
  " Add POSIX signals as well...
  syn keyword cConstant SIGABRT SIGALRM SIGCHLD SIGCONT SIGFPE SIGHUP
  syn keyword cConstant SIGILL SIGINT SIGKILL SIGPIPE SIGQUIT SIGSEGV
  syn keyword cConstant SIGSTOP SIGTERM SIGTRAP SIGTSTP SIGTTIN SIGTTOU
  syn keyword cConstant SIGUSR1 SIGUSR2
  syn keyword cConstant _IOFBF _IOLBF _IONBF BUFSIZ EOF WEOF
  syn keyword cConstant FOPEN_MAX FILENAME_MAX L_tmpnam
  syn keyword cConstant SEEK_CUR SEEK_END SEEK_SET
  syn keyword cConstant TMP_MAX stderr stdin stdout
  syn keyword cConstant EXIT_FAILURE EXIT_SUCCESS RAND_MAX
  " Add POSIX errors as well
  syn keyword cConstant E2BIG EACCES EAGAIN EBADF EBADMSG EBUSY
  syn keyword cConstant ECANCELED ECHILD EDEADLK EDOM EEXIST EFAULT
  syn keyword cConstant EFBIG EILSEQ EINPROGRESS EINTR EINVAL EIO EISDIR
  syn keyword cConstant EMFILE EMLINK EMSGSIZE ENAMETOOLONG ENFILE ENODEV
  syn keyword cConstant ENOENT ENOEXEC ENOLCK ENOMEM ENOSPC ENOSYS
  syn keyword cConstant ENOTDIR ENOTEMPTY ENOTSUP ENOTTY ENXIO EPERM
  syn keyword cConstant EPIPE ERANGE EROFS ESPIPE ESRCH ETIMEDOUT EXDEV
  " math.h
  syn keyword cConstant M_E M_LOG2E M_LOG10E M_LN2 M_LN10 M_PI M_PI_2 M_PI_4
  syn keyword cConstant M_1_PI M_2_PI M_2_SQRTPI M_SQRT2 M_SQRT1_2
endif
if !exists("c_no_c99") " ISO C99
  syn keyword cConstant true false
endif

" Accept %: for # (C99)
syn region      cPreCondit      
start="^\s*\(%:\|#\)\s*\(if\|ifdef\|ifndef\|elif\)\>" skip="\\$" end="$" 
keepend 
contains=cComment,cCommentL,cCppString,cCharacter,cCppParen,cParenError,cNumbers,cCommentError,cSpaceError
syn match       cPreConditMatch display "^\s*\(%:\|#\)\s*\(else\|endif\)\>"
if !exists("c_no_if0")
  syn cluster   cCppOutInGroup  
contains=cCppInIf,cCppInElse,cCppInElse2,cCppOutIf,cCppOutIf2,cCppOutElse,cCppInSkip,cCppOutSkip
  syn region    cCppOutWrapper  
start="^\s*\(%:\|#\)\s*if\s\+0\+\s*\($\|//\|/\*\|&\)" end=".\@=\|$" 
contains=cCppOutIf,cCppOutElse fold
  syn region    cCppOutIf       contained start="0\+" matchgroup=cCppOutWrapper 
end="^\s*\(%:\|#\)\s*endif\>" contains=cCppOutIf2,cCppOutElse
  if !exists("c_no_if0_fold")
    syn region  cCppOutIf2      contained matchgroup=cCppOutWrapper start="0\+" 
end="^\s*\(%:\|#\)\s*\(else\>\|elif\s\+\(0\+\s*\($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1
 contains=cSpaceError,cCppOutSkip fold
  else
    syn region  cCppOutIf2      contained matchgroup=cCppOutWrapper start="0\+" 
end="^\s*\(%:\|#\)\s*\(else\>\|elif\s\+\(0\+\s*\($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1
 contains=cSpaceError,cCppOutSkip
  endif
  syn region    cCppOutElse     contained matchgroup=cCppOutWrapper 
start="^\s*\(%:\|#\)\s*\(else\|elif\)" end="^\s*\(%:\|#\)\s*endif\>"me=s-1 
contains=TOP,cPreCondit
  syn region    cCppInWrapper   
start="^\s*\(%:\|#\)\s*if\s\+0*[1-9]\d*\s*\($\|//\|/\*\||\)" end=".\@=\|$" 
contains=cCppInIf,cCppInElse fold
  syn region    cCppInIf        contained matchgroup=cCppInWrapper start="\d\+" 
end="^\s*\(%:\|#\)\s*endif\>" contains=TOP,cPreCondit
  if !exists("c_no_if0_fold")
    syn region  cCppInElse      contained 
start="^\s*\(%:\|#\)\s*\(else\>\|elif\s\+\(0*[1-9]\d*\s*\($\|//\|/\*\||\)\)\@!\)"
 end=".\@=\|$" containedin=cCppInIf contains=cCppInElse2 fold
  else
    syn region  cCppInElse      contained 
start="^\s*\(%:\|#\)\s*\(else\>\|elif\s\+\(0*[1-9]\d*\s*\($\|//\|/\*\||\)\)\@!\)"
 end=".\@=\|$" containedin=cCppInIf contains=cCppInElse2
  endif
  syn region    cCppInElse2     contained matchgroup=cCppInWrapper 
start="^\s*\(%:\|#\)\s*\(else\|elif\)\([^/]\|/[^/*]\)*" 
end="^\s*\(%:\|#\)\s*endif\>"me=s-1 contains=cSpaceError,cCppOutSkip
  syn region    cCppOutSkip     contained 
start="^\s*\(%:\|#\)\s*\(if\>\|ifdef\>\|ifndef\>\)" skip="\\$" 
end="^\s*\(%:\|#\)\s*endif\>" contains=cSpaceError,cCppOutSkip
  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
endif
syn region      cIncluded       display contained start=+"+ skip=+\\\\\|\\"+ 
end=+"+
syn match       cIncluded       display contained "<[^>]*>"
syn match       cInclude        display "^\s*\(%:\|#\)\s*include\>\s*["<]" 
contains=cIncluded
"syn match cLineSkip    "\\$"
syn 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,cBadBlock
syn region      cDefine         start="^\s*\(%:\|#\)\s*\(define\|undef\)\>" 
skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell
syn region      cPreProc        
start="^\s*\(%:\|#\)\s*\(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)" 
skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell

" Highlight User Labels
syn 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
syn region      cMulti          transparent start='?' skip='::' end=':' 
contains=ALLBUT,@cMultiGroup,@Spell
" Avoid matching foo::bar() in C++ by requiring that the next char is not ':'
syn cluster     cLabelGroup     contains=cUserLabel
syn match       cUserCont       display "^\s*\I\i*\s*:$" contains=@cLabelGroup
syn match       cUserCont       display ";\s*\I\i*\s*:$" contains=@cLabelGroup
syn match       cUserCont       display "^\s*\I\i*\s*:[^:]"me=e-1 
contains=@cLabelGroup
syn match       cUserCont       display ";\s*\I\i*\s*:[^:]"me=e-1 
contains=@cLabelGroup

syn match       cUserLabel      display "\I\i*" contained

" Avoid recognizing most bitfields as labels
syn match       cBitField       display "^\s*\I\i*\s*:\s*[1-9]"me=e-1 
contains=cType
syn match       cBitField       display ";\s*\I\i*\s*:\s*[1-9]"me=e-1 
contains=cType

if exists("c_minlines")
  let b:c_minlines = c_minlines
else
  if !exists("c_no_if0")
    let b:c_minlines = 50       " #if 0 constructs can be long
  else
    let b:c_minlines = 15       " mostly for () constructs
  endif
endif
if exists("c_curly_error")
  syn sync fromstart
else
  exec "syn sync ccomment cComment minlines=" . b:c_minlines
endif

" Define the default highlighting.
" Only used when an item doesn't have highlighting yet
hi def link cFormat             cSpecial
hi def link cCppString          cString
hi def link cCommentL           cComment
hi def link cCommentStart       cComment
hi def link cLabel              Label
hi def link cUserLabel          Label
hi def link cConditional        Conditional
hi def link cRepeat             Repeat
hi def link cCharacter          Character
hi def link cSpecialCharacter   cSpecial
hi def link cNumber             Number
hi def link cOctal              Number
hi def link cOctalZero          PreProc  " link this to Error if you want
hi def link cFloat              Float
hi def link cOctalError         cError
hi def link cParenError         cError
hi def link cErrInParen         cError
hi def link cErrInBracket       cError
hi def link cCommentError       cError
hi def link cCommentStartError  cError
hi def link cSpaceError         cError
hi def link cSpecialError       cError
hi def link cCurlyError         cError
hi def link cOperator           Operator
hi def link cStructure          Structure
hi def link cStorageClass       StorageClass
hi def link cInclude            Include
hi def link cPreProc            PreProc
hi def link cDefine             Macro
hi def link cIncluded           cString
hi def link cError              Error
hi def link cStatement          Statement
hi def link cCppInWrapper       cCppOutWrapper
hi def link cCppOutWrapper      cPreCondit
hi def link cPreConditMatch     cPreCondit
hi def link cPreCondit          PreCondit
hi def link cType               Type
hi def link cConstant           Constant
hi def link cCommentString      cString
hi def link cComment2String     cString
hi def link cCommentSkip        cComment
hi def link cString             String
hi def link cComment            Comment
hi def link cSpecial            SpecialChar
hi def link cTodo               Todo
hi def link cBadContinuation    Error
hi def link cCppOutSkip         cCppOutIf2
hi def link cCppInElse2         cCppOutIf2
hi def link cCppOutIf2          cCppOut2  " Old syntax group for #if 0 body
hi def link cCppOut2            cCppOut  " Old syntax group for #if of #if 0
hi def link cCppOut             Comment

let b:current_syntax = "c"

let &cpo = s:cpo_save
unlet s:cpo_save
" vim: ts=8

-- 
Dogs must have a permit signed by the mayor in order to congregate in groups
of three or more on private property.
                [real standing law in Oklahoma, United States of America]

 /// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///

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