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
" cCommentGroup allows adding matches for special things in comments
syn cluster cCommentGroup contains=cTodo
" String and Character constants
" Highlight special characters (those which have a backslash) differently
syn match cSpecial contained "\\\(x\x\+\|\o\{1,3}\|.\|$\)"
if !exists("c_no_utf")
syn match cSpecial contained "\\\(u\x\{4}\|U\x\{8}\)"
endif
if exists("c_no_cformat")
syn region cString start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial
else
syn match cFormat "%\(\d\+\$\)\=[-+' #0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlL]\|ll\)\=\([diuoxXfeEgGcCsSpn]\|\[\^\=.[^]]*\]\)" contained
syn match cFormat "%%" contained
syn region cString start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,cFormat
hi link cFormat cSpecial
endif
syn match cCharacter "L\='[^\\]'"
syn match cCharacter "L'[^']*'" contains=cSpecial
syn match cSpecialError "L\='\\[^'\"?\\abfnrtv]'"
syn match cSpecialCharacter "L\='\\['\"?\\abfnrtv]'"
syn match cSpecialCharacter "L\='\\\o\{1,3}'"
syn match cSpecialCharacter "'\\x\x\{1,2}'"
syn match cSpecialCharacter "L'\\x\x\+'"
"when wanted, highlight trailing white space
if exists("c_space_errors")
if !exists("c_no_trail_space_error")
syn match cSpaceError "\s\+$"
endif
if !exists("c_no_tab_space_error")
syn match cSpaceError " \+\t"me=e-1
endif
endif
"catch errors caused by wrong parenthesis and brackets
syn cluster cParenGroup contains=cParenError,cIncluded,cSpecial,@cCommentGroup,cUserCont,cUserLabel,cBitField,cCommentSkip,cOctalZero,cCppOut,cCppOut2,cCppSkip,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom
if exists("c_no_bracket_error")
syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup
syn match cParenError ")"
syn match cErrInParen contained "[{}]"
else
syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cErrInBracket
syn match cParenError "[\])]"
syn match cErrInParen contained "[\]{}]"
syn region cBracket transparent start='\[' end=']' contains=ALLBUT,@cParenGroup,cErrInParen
syn match cErrInBracket contained "[);{}]"
endif
"integer number, or floating point number without a dot and with "f".
syn case ignore
syn match cNumbers transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctalError,cOctal
" Same, but without octal error (for comments)
syn match cNumbersCom contained transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctal
syn match cNumber contained "\d\+\(u\=l\{0,2}\|ll\=u\)\>"
"hex number
syn match cNumber contained "0x\x\+\(u\=l\{0,2}\|ll\=u\)\>"
" Flag the first zero of an octal number as something special
syn match cOctal contained "0\o\+\(u\=l\{0,2}\|ll\=u\)\>" contains=cOctalZero
syn match cOctalZero contained "\<0"
syn match cFloat contained "\d\+f"
"floating point number, with dot, optional exponent
syn match cFloat contained "\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\="
"floating point number, starting with a dot, optional exponent
syn match cFloat contained "\.\d\+\(e[-+]\=\d\+\)\=[fl]\=\>"
"floating point number, without dot, with exponent
syn match cFloat contained "\d\+e[-+]\=\d\+[fl]\=\>"
" flag an octal number with wrong digits
syn match cOctalError 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="$" keepend contains=@cCommentGroup,cComment2String,cCharacter,cNumbersCom,cSpaceError
syntax region cComment start="/\*" end="\*/" contains=@cCommentGroup,cCommentString,cCharacter,cNumbersCom,cSpaceError
else
syn region cCommentL start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cSpaceError
syn region cComment start="/\*" end="\*/" contains=@cCommentGroup,cSpaceError
endif
" keep a // comment separately, it terminates a preproc. conditional
hi link cCommentL cComment
syntax match cCommentError "\*/"
syn keyword cOperator sizeof
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 wchar_t ptrdiff_t sig_atomic_t fpos_t
syn keyword cType clock_t time_t va_list jmp_buf FILE div_t ldiv_t
endif
syn keyword cStructure struct union enum typedef
syn keyword cStorageClass static register auto volatile extern const
if !exists("c_no_ansi") || exists("c_ansi_constants")
syn keyword cConstant __LINE__ __FILE__ __DATE__ __TIME__ __STDC__
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
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 EDOM ERANGE 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 SIGINT SIGSEGV SIGTERM
syn keyword cConstant _IOFBF _IOLBF _IONBF BUFSIZ EOF
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
endif
syn region cPreCondit start="^\s*#\s*\(if\|ifdef\|ifndef\|elif\|else\)\>" skip="\\$" end="$" end="//"me=s-1 contains=cComment,cString,cCharacter,cNumbers,cCommentError,cSpaceError
syn match cPreCondit "^\s*#\s*\(else\|endif\)\>"
if !exists("c_no_if0")
syn region cCppOut start="^\s*#\s*if\s\+0\>" end=".\|$" contains=cCppOut2
syn region cCppOut2 contained start="0" end="^\s*#\s*\(endif\>\|else\>\|elif\>\)" contains=cSpaceError,cCppSkip
syn region cCppSkip contained start="^\s*#\s*\(if\>\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*#\s*endif\>" contains=cSpaceError,cCppSkip
endif
syn region cIncluded contained start=+"+ skip=+\\\\\|\\"+ end=+"+
syn match cIncluded contained "<[^>]*>"
syn match cInclude "^\s*#\s*include\>\s*["<]" contains=cIncluded
"syn match cLineSkip "\\$"
syn cluster cPreProcGroup contains=cPreCondit,cIncluded,cInclude,cDefine,cErrInParen,cErrInBracket,cUserLabel,cSpecial,cOctalZero,cCppOut,cCppOut2,cCppSkip,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom
syn region cDefine start="^\s*#\s*\(define\|undef\)\>" skip="\\$" end="$" contains=ALLBUT,@cPreProcGroup
syn region cPreProc start="^\s*#\s*\(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)" skip="\\$" end="$" contains=ALLBUT,@cPreProcGroup
" Highlight User Labels
syn cluster cMultiGroup contains=cIncluded,cSpecial,@cCommentGroup,cUserCont,cUserLabel,cBitField,cOctalZero,cCppOut,cCppOut2,cCppSkip,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom
syn region cMulti transparent start='?' skip='::' end=':' contains=ALLBUT,@cMultiGroup
" Avoid matching foo::bar() in C++ by requiring that the next char is not ':'
syn cluster cLabelGroup contains=cUserLabel
syn match cUserCont "^\s*\I\i*\s*:$" contains=@cLabelGroup
syn match cUserCont ";\s*\I\i*\s*:$" contains=@cLabelGroup
syn match cUserCont "^\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
syn match cUserCont ";\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
syn match cUserLabel "\I\i*" contained
" Avoid recognizing most bitfields as labels
syn match cBitField "^\s*\I\i*\s*:\s*[1-9]"me=e-1
syn match cBitField ";\s*\I\i*\s*:\s*[1-9]"me=e-1
if !exists("c_minlines")
if !exists("c_no_if0")
let c_minlines = 50 " #if 0 constructs can be long
