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7
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1 " Vim syntax file
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2 " Language: C
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3 " Maintainer: Bram Moolenaar <Bram@vim.org>
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36
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4 " Last Change: 2004 Dec 09
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7
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5
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6 " For version 5.x: Clear all syntax items
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7 " For version 6.x: Quit when a syntax file was already loaded
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8 if version < 600
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9 syntax clear
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10 elseif exists("b:current_syntax")
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11 finish
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12 endif
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13
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14 " A bunch of useful C keywords
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15 syn keyword cStatement goto break return continue asm
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16 syn keyword cLabel case default
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17 syn keyword cConditional if else switch
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18 syn keyword cRepeat while for do
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19
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20 syn keyword cTodo contained TODO FIXME XXX
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21
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22 " cCommentGroup allows adding matches for special things in comments
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23 syn cluster cCommentGroup contains=cTodo
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24
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25 " String and Character constants
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26 " Highlight special characters (those which have a backslash) differently
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27 syn match cSpecial display contained "\\\(x\x\+\|\o\{1,3}\|.\|$\)"
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28 if !exists("c_no_utf")
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29 syn match cSpecial display contained "\\\(u\x\{4}\|U\x\{8}\)"
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30 endif
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31 if exists("c_no_cformat")
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32 syn region cString start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,@Spell
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33 " cCppString: same as cString, but ends at end of line
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34 syn region cCppString start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,@Spell
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35 else
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36 syn match cFormat display "%\(\d\+\$\)\=[-+' #0*]*\(\d*\|\*\|\*\d\+\$\)\(\.\(\d*\|\*\|\*\d\+\$\)\)\=\([hlL]\|ll\)\=\([bdiuoxXDOUfeEgGcCsSpn]\|\[\^\=.[^]]*\]\)" contained
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37 syn match cFormat display "%%" contained
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38 syn region cString start=+L\="+ skip=+\\\\\|\\"+ end=+"+ contains=cSpecial,cFormat,@Spell
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39 " cCppString: same as cString, but ends at end of line
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40 syn region cCppString start=+L\="+ skip=+\\\\\|\\"\|\\$+ excludenl end=+"+ end='$' contains=cSpecial,cFormat,@Spell
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41 endif
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42
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43 syn match cCharacter "L\='[^\\]'"
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44 syn match cCharacter "L'[^']*'" contains=cSpecial
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45 if exists("c_gnu")
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46 syn match cSpecialError "L\='\\[^'\"?\\abefnrtv]'"
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47 syn match cSpecialCharacter "L\='\\['\"?\\abefnrtv]'"
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48 else
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49 syn match cSpecialError "L\='\\[^'\"?\\abfnrtv]'"
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50 syn match cSpecialCharacter "L\='\\['\"?\\abfnrtv]'"
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51 endif
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52 syn match cSpecialCharacter display "L\='\\\o\{1,3}'"
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53 syn match cSpecialCharacter display "'\\x\x\{1,2}'"
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54 syn match cSpecialCharacter display "L'\\x\x\+'"
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55
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56 "when wanted, highlight trailing white space
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57 if exists("c_space_errors")
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58 if !exists("c_no_trail_space_error")
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59 syn match cSpaceError display excludenl "\s\+$"
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60 endif
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61 if !exists("c_no_tab_space_error")
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62 syn match cSpaceError display " \+\t"me=e-1
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63 endif
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64 endif
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65
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66 "catch errors caused by wrong parenthesis and brackets
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67 " also accept <% for {, %> for }, <: for [ and :> for ] (C99)
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68 " But avoid matching <::.
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69 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
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70 if exists("c_no_bracket_error")
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71 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cCppString,@Spell
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72 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
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73 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cParen,cString,@Spell
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74 syn match cParenError display ")"
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75 syn match cErrInParen display contained "[{}]\|<%\|%>"
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76 else
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77 syn region cParen transparent start='(' end=')' contains=ALLBUT,@cParenGroup,cCppParen,cErrInBracket,cCppBracket,cCppString,@Spell
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78 " cCppParen: same as cParen but ends at end-of-line; used in cDefine
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79 syn region cCppParen transparent start='(' skip='\\$' excludenl end=')' end='$' contained contains=ALLBUT,@cParenGroup,cErrInBracket,cParen,cBracket,cString,@Spell
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80 syn match cParenError display "[\])]"
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81 syn match cErrInParen display contained "[\]{}]\|<%\|%>"
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82 syn region cBracket transparent start='\[\|<::\@!' end=']\|:>' contains=ALLBUT,@cParenGroup,cErrInParen,cCppParen,cCppBracket,cCppString,@Spell
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83 " cCppBracket: same as cParen but ends at end-of-line; used in cDefine
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84 syn region cCppBracket transparent start='\[\|<::\@!' skip='\\$' excludenl end=']\|:>' end='$' contained contains=ALLBUT,@cParenGroup,cErrInParen,cParen,cBracket,cString,@Spell
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85 syn match cErrInBracket display contained "[);{}]\|<%\|%>"
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86 endif
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87
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88 "integer number, or floating point number without a dot and with "f".
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89 syn case ignore
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90 syn match cNumbers display transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctalError,cOctal
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91 " Same, but without octal error (for comments)
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92 syn match cNumbersCom display contained transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctal
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93 syn match cNumber display contained "\d\+\(u\=l\{0,2}\|ll\=u\)\>"
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94 "hex number
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95 syn match cNumber display contained "0x\x\+\(u\=l\{0,2}\|ll\=u\)\>"
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96 " Flag the first zero of an octal number as something special
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97 syn match cOctal display contained "0\o\+\(u\=l\{0,2}\|ll\=u\)\>" contains=cOctalZero
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98 syn match cOctalZero display contained "\<0"
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99 syn match cFloat display contained "\d\+f"
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100 "floating point number, with dot, optional exponent
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101 syn match cFloat display contained "\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\="
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102 "floating point number, starting with a dot, optional exponent
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103 syn match cFloat display contained "\.\d\+\(e[-+]\=\d\+\)\=[fl]\=\>"
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104 "floating point number, without dot, with exponent
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105 syn match cFloat display contained "\d\+e[-+]\=\d\+[fl]\=\>"
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106 if !exists("c_no_c99")
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107 "hexadecimal floating point number, optional leading digits, with dot, with exponent
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108 syn match cFloat display contained "0x\x*\.\x\+p[-+]\=\d\+[fl]\=\>"
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109 "hexadecimal floating point number, with leading digits, optional dot, with exponent
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110 syn match cFloat display contained "0x\x\+\.\=p[-+]\=\d\+[fl]\=\>"
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111 endif
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112
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113 " flag an octal number with wrong digits
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114 syn match cOctalError display contained "0\o*[89]\d*"
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115 syn case match
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116
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117 if exists("c_comment_strings")
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118 " A comment can contain cString, cCharacter and cNumber.
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119 " But a "*/" inside a cString in a cComment DOES end the comment! So we
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120 " need to use a special type of cString: cCommentString, which also ends on
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121 " "*/", and sees a "*" at the start of the line as comment again.
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122 " Unfortunately this doesn't very well work for // type of comments :-(
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123 syntax match cCommentSkip contained "^\s*\*\($\|\s\+\)"
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124 syntax region cCommentString contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end=+\*/+me=s-1 contains=cSpecial,cCommentSkip
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125 syntax region cComment2String contained start=+L\=\\\@<!"+ skip=+\\\\\|\\"+ end=+"+ end="$" contains=cSpecial
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126 syntax region cCommentL start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cComment2String,cCharacter,cNumbersCom,cSpaceError,@Spell
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36
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127 if exists("c_no_comment_fold")
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128 syntax region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell
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129 else
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130 syntax region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cCommentString,cCharacter,cNumbersCom,cSpaceError,@Spell fold
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131 endif
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132 else
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133 syn region cCommentL start="//" skip="\\$" end="$" keepend contains=@cCommentGroup,cSpaceError,@Spell
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36
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134 if exists("c_no_comment_fold")
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135 syn region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell
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136 else
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137 syn region cComment matchgroup=cCommentStart start="/\*" end="\*/" contains=@cCommentGroup,cCommentStartError,cSpaceError,@Spell fold
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138 endif
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139 endif
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140 " keep a // comment separately, it terminates a preproc. conditional
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141 syntax match cCommentError display "\*/"
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142 syntax match cCommentStartError display "/\*"me=e-1 contained
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143
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144 syntax region cBlock start="{" end="}" transparent fold
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145
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146 syn keyword cOperator sizeof
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147 if exists("c_gnu")
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148 syn keyword cStatement __asm__
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149 syn keyword cOperator typeof __real__ __imag__
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150 endif
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151 syn keyword cType int long short char void
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152 syn keyword cType signed unsigned float double
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153 if !exists("c_no_ansi") || exists("c_ansi_typedefs")
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154 syn keyword cType size_t ssize_t wchar_t ptrdiff_t sig_atomic_t fpos_t
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155 syn keyword cType clock_t time_t va_list jmp_buf FILE DIR div_t ldiv_t
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156 syn keyword cType mbstate_t wctrans_t wint_t wctype_t
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157 endif
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158 if !exists("c_no_c99") " ISO C99
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159 syn keyword cType bool complex
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160 syn keyword cType int8_t int16_t int32_t int64_t
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161 syn keyword cType uint8_t uint16_t uint32_t uint64_t
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162 syn keyword cType int_least8_t int_least16_t int_least32_t int_least64_t
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163 syn keyword cType uint_least8_t uint_least16_t uint_least32_t uint_least64_t
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164 syn keyword cType int_fast8_t int_fast16_t int_fast32_t int_fast64_t
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165 syn keyword cType uint_fast8_t uint_fast16_t uint_fast32_t uint_fast64_t
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166 syn keyword cType intptr_t uintptr_t
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167 syn keyword cType intmax_t uintmax_t
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168 endif
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169 if exists("c_gnu")
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170 syn keyword cType __label__ __complex__ __volatile__
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171 endif
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172
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173 syn keyword cStructure struct union enum typedef
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174 syn keyword cStorageClass static register auto volatile extern const
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175 if exists("c_gnu")
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176 syn keyword cStorageClass inline __attribute__
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177 endif
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178 if !exists("c_no_c99")
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179 syn keyword cStorageClass inline restrict
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180 endif
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181
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182 if !exists("c_no_ansi") || exists("c_ansi_constants") || exists("c_gnu")
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183 if exists("c_gnu")
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184 syn keyword cConstant __GNUC__ __FUNCTION__ __PRETTY_FUNCTION__
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185 endif
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186 syn keyword cConstant __LINE__ __FILE__ __DATE__ __TIME__ __STDC__
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187 syn keyword cConstant __STDC_VERSION__
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188 syn keyword cConstant CHAR_BIT MB_LEN_MAX MB_CUR_MAX
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189 syn keyword cConstant UCHAR_MAX UINT_MAX ULONG_MAX USHRT_MAX
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190 syn keyword cConstant CHAR_MIN INT_MIN LONG_MIN SHRT_MIN
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191 syn keyword cConstant CHAR_MAX INT_MAX LONG_MAX SHRT_MAX
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192 syn keyword cConstant SCHAR_MIN SINT_MIN SLONG_MIN SSHRT_MIN
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193 syn keyword cConstant SCHAR_MAX SINT_MAX SLONG_MAX SSHRT_MAX
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194 if !exists("c_no_c99")
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195 syn keyword cConstant LLONG_MAX ULLONG_MAX
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196 syn keyword cConstant INT8_MIN INT16_MIN INT32_MIN INT64_MIN
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197 syn keyword cConstant INT8_MAX INT16_MAX INT32_MAX INT64_MAX
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198 syn keyword cConstant UINT8_MAX UINT16_MAX UINT32_MAX UINT64_MAX
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199 syn keyword cConstant INT_LEAST8_MIN INT_LEAST16_MIN INT_LEAST32_MIN INT_LEAST64_MIN
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200 syn keyword cConstant INT_LEAST8_MAX INT_LEAST16_MAX INT_LEAST32_MAX INT_LEAST64_MAX
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201 syn keyword cConstant UINT_LEAST8_MAX UINT_LEAST16_MAX UINT_LEAST32_MAX UINT_LEAST64_MAX
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202 syn keyword cConstant INT_FAST8_MIN INT_FAST16_MIN INT_FAST32_MIN INT_FAST64_MIN
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203 syn keyword cConstant INT_FAST8_MAX INT_FAST16_MAX INT_FAST32_MAX INT_FAST64_MAX
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204 syn keyword cConstant UINT_FAST8_MAX UINT_FAST16_MAX UINT_FAST32_MAX UINT_FAST64_MAX
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205 syn keyword cConstant INTPTR_MIN INTPTR_MAX UINTPTR_MAX
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206 syn keyword cConstant INTMAX_MIN INTMAX_MAX UINTMAX_MAX
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207 syn keyword cConstant PTRDIFF_MIN PTRDIFF_MAX SIG_ATOMIC_MIN SIG_ATOMIC_MAX
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208 syn keyword cConstant SIZE_MAX WCHAR_MIN WCHAR_MAX WINT_MIN WINT_MAX
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209 endif
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210 syn keyword cConstant FLT_RADIX FLT_ROUNDS
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211 syn keyword cConstant FLT_DIG FLT_MANT_DIG FLT_EPSILON
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212 syn keyword cConstant DBL_DIG DBL_MANT_DIG DBL_EPSILON
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213 syn keyword cConstant LDBL_DIG LDBL_MANT_DIG LDBL_EPSILON
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214 syn keyword cConstant FLT_MIN FLT_MAX FLT_MIN_EXP FLT_MAX_EXP
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215 syn keyword cConstant FLT_MIN_10_EXP FLT_MAX_10_EXP
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216 syn keyword cConstant DBL_MIN DBL_MAX DBL_MIN_EXP DBL_MAX_EXP
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217 syn keyword cConstant DBL_MIN_10_EXP DBL_MAX_10_EXP
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218 syn keyword cConstant LDBL_MIN LDBL_MAX LDBL_MIN_EXP LDBL_MAX_EXP
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219 syn keyword cConstant LDBL_MIN_10_EXP LDBL_MAX_10_EXP
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220 syn keyword cConstant HUGE_VAL CLOCKS_PER_SEC NULL
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221 syn keyword cConstant LC_ALL LC_COLLATE LC_CTYPE LC_MONETARY
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222 syn keyword cConstant LC_NUMERIC LC_TIME
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223 syn keyword cConstant SIG_DFL SIG_ERR SIG_IGN
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224 syn keyword cConstant SIGABRT SIGFPE SIGILL SIGHUP SIGINT SIGSEGV SIGTERM
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225 " Add POSIX signals as well...
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226 syn keyword cConstant SIGABRT SIGALRM SIGCHLD SIGCONT SIGFPE SIGHUP
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227 syn keyword cConstant SIGILL SIGINT SIGKILL SIGPIPE SIGQUIT SIGSEGV
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228 syn keyword cConstant SIGSTOP SIGTERM SIGTRAP SIGTSTP SIGTTIN SIGTTOU
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229 syn keyword cConstant SIGUSR1 SIGUSR2
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230 syn keyword cConstant _IOFBF _IOLBF _IONBF BUFSIZ EOF WEOF
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231 syn keyword cConstant FOPEN_MAX FILENAME_MAX L_tmpnam
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232 syn keyword cConstant SEEK_CUR SEEK_END SEEK_SET
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233 syn keyword cConstant TMP_MAX stderr stdin stdout
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234 syn keyword cConstant EXIT_FAILURE EXIT_SUCCESS RAND_MAX
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235 " Add POSIX errors as well
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236 syn keyword cConstant E2BIG EACCES EAGAIN EBADF EBADMSG EBUSY
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237 syn keyword cConstant ECANCELED ECHILD EDEADLK EDOM EEXIST EFAULT
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238 syn keyword cConstant EFBIG EILSEQ EINPROGRESS EINTR EINVAL EIO EISDIR
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239 syn keyword cConstant EMFILE EMLINK EMSGSIZE ENAMETOOLONG ENFILE ENODEV
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240 syn keyword cConstant ENOENT ENOEXEC ENOLCK ENOMEM ENOSPC ENOSYS
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241 syn keyword cConstant ENOTDIR ENOTEMPTY ENOTSUP ENOTTY ENXIO EPERM
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242 syn keyword cConstant EPIPE ERANGE EROFS ESPIPE ESRCH ETIMEDOUT EXDEV
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243 " math.h
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244 syn keyword cConstant M_E M_LOG2E M_LOG10E M_LN2 M_LN10 M_PI M_PI_2 M_PI_4
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245 syn keyword cConstant M_1_PI M_2_PI M_2_SQRTPI M_SQRT2 M_SQRT1_2
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246 endif
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247 if !exists("c_no_c99") " ISO C99
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248 syn keyword cConstant true false
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249 endif
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250
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251 " Accept %: for # (C99)
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252 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
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253 syn match cPreCondit display "^\s*\(%:\|#\)\s*\(else\|endif\)\>"
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254 if !exists("c_no_if0")
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255 syn region cCppOut start="^\s*\(%:\|#\)\s*if\s\+0\+\>" end=".\@=\|$" contains=cCppOut2
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256 syn region cCppOut2 contained start="0" end="^\s*\(%:\|#\)\s*\(endif\>\|else\>\|elif\>\)" contains=cSpaceError,cCppSkip
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257 syn region cCppSkip contained start="^\s*\(%:\|#\)\s*\(if\>\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*\(%:\|#\)\s*endif\>" contains=cSpaceError,cCppSkip
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258 endif
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259 syn region cIncluded display contained start=+"+ skip=+\\\\\|\\"+ end=+"+
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260 syn match cIncluded display contained "<[^>]*>"
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261 syn match cInclude display "^\s*\(%:\|#\)\s*include\>\s*["<]" contains=cIncluded
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262 "syn match cLineSkip "\\$"
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263 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
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264 syn region cDefine start="^\s*\(%:\|#\)\s*\(define\|undef\)\>" skip="\\$" end="$" end="//"me=s-1 contains=ALLBUT,@cPreProcGroup,@Spell
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265 syn region cPreProc start="^\s*\(%:\|#\)\s*\(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)" skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell
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266
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267 " Highlight User Labels
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268 syn cluster cMultiGroup contains=cIncluded,cSpecial,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cUserCont,cUserLabel,cBitField,cOctalZero,cCppOut,cCppOut2,cCppSkip,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom,cCppParen,cCppBracket,cCppString
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269 syn region cMulti transparent start='?' skip='::' end=':' contains=ALLBUT,@cMultiGroup,@Spell
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270 " Avoid matching foo::bar() in C++ by requiring that the next char is not ':'
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271 syn cluster cLabelGroup contains=cUserLabel
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272 syn match cUserCont display "^\s*\I\i*\s*:$" contains=@cLabelGroup
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273 syn match cUserCont display ";\s*\I\i*\s*:$" contains=@cLabelGroup
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274 syn match cUserCont display "^\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
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275 syn match cUserCont display ";\s*\I\i*\s*:[^:]"me=e-1 contains=@cLabelGroup
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276
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277 syn match cUserLabel display "\I\i*" contained
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278
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279 " Avoid recognizing most bitfields as labels
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280 syn match cBitField display "^\s*\I\i*\s*:\s*[1-9]"me=e-1
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281 syn match cBitField display ";\s*\I\i*\s*:\s*[1-9]"me=e-1
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282
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283 if exists("c_minlines")
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284 let b:c_minlines = c_minlines
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285 else
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286 if !exists("c_no_if0")
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287 let b:c_minlines = 50 " #if 0 constructs can be long
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288 else
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289 let b:c_minlines = 15 " mostly for () constructs
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290 endif
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291 endif
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292 exec "syn sync ccomment cComment minlines=" . b:c_minlines
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293
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294 " Define the default highlighting.
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295 " For version 5.7 and earlier: only when not done already
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296 " For version 5.8 and later: only when an item doesn't have highlighting yet
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297 if version >= 508 || !exists("did_c_syn_inits")
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298 if version < 508
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299 let did_c_syn_inits = 1
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300 command -nargs=+ HiLink hi link <args>
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301 else
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302 command -nargs=+ HiLink hi def link <args>
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303 endif
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304
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305 HiLink cFormat cSpecial
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306 HiLink cCppString cString
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307 HiLink cCommentL cComment
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308 HiLink cCommentStart cComment
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309 HiLink cLabel Label
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310 HiLink cUserLabel Label
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311 HiLink cConditional Conditional
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312 HiLink cRepeat Repeat
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313 HiLink cCharacter Character
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314 HiLink cSpecialCharacter cSpecial
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315 HiLink cNumber Number
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316 HiLink cOctal Number
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317 HiLink cOctalZero PreProc " link this to Error if you want
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318 HiLink cFloat Float
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319 HiLink cOctalError cError
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320 HiLink cParenError cError
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321 HiLink cErrInParen cError
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322 HiLink cErrInBracket cError
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323 HiLink cCommentError cError
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324 HiLink cCommentStartError cError
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325 HiLink cSpaceError cError
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326 HiLink cSpecialError cError
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327 HiLink cOperator Operator
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328 HiLink cStructure Structure
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329 HiLink cStorageClass StorageClass
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330 HiLink cInclude Include
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331 HiLink cPreProc PreProc
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332 HiLink cDefine Macro
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333 HiLink cIncluded cString
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334 HiLink cError Error
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335 HiLink cStatement Statement
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336 HiLink cPreCondit PreCondit
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337 HiLink cType Type
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338 HiLink cConstant Constant
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339 HiLink cCommentString cString
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340 HiLink cComment2String cString
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341 HiLink cCommentSkip cComment
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342 HiLink cString String
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343 HiLink cComment Comment
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344 HiLink cSpecial SpecialChar
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345 HiLink cTodo Todo
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346 HiLink cCppSkip cCppOut
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347 HiLink cCppOut2 cCppOut
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348 HiLink cCppOut Comment
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349
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350 delcommand HiLink
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351 endif
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352
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353 let b:current_syntax = "c"
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354
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355 " vim: ts=8
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