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238 lines
8.0 KiB
VimL
238 lines
8.0 KiB
VimL
" Vim syntax file
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" Language: awk, nawk, gawk, mawk
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" Maintainer: Antonio Colombo <azc100@gmail.com>
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" Last Change: 2014 Oct 21
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" AWK ref. is: Alfred V. Aho, Brian W. Kernighan, Peter J. Weinberger
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" The AWK Programming Language, Addison-Wesley, 1988
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" GAWK ref. is: Arnold D. Robbins
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" Effective AWK Programming, Third Edition, O'Reilly, 2001
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" Effective AWK Programming, Fourth Edition, O'Reilly, 2015
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" (also available with the gawk source distribution)
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" MAWK is a "new awk" meaning it implements AWK ref.
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" mawk conforms to the Posix 1003.2 (draft 11.3)
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" definition of the AWK language which contains a few features
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" not described in the AWK book, and mawk provides a small number of extensions.
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" TODO:
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" Dig into the commented out syntax expressions below.
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" For version 5.x: Clear all syntax items
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" For version 6.x: Quit when a syntax file was already loaded
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if version < 600
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syn clear
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elseif exists("b:current_syntax")
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finish
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endif
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let s:cpo_save = &cpo
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set cpo&vim
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" A bunch of useful Awk keywords
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" AWK ref. p. 188
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syn keyword awkStatement break continue delete exit
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syn keyword awkStatement function getline next
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syn keyword awkStatement print printf return
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" GAWK ref. Chapter 7
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syn keyword awkStatement nextfile
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"
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" GAWK ref. Chapter 9, Functions
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"
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" Numeric Functions
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syn keyword awkFunction atan2 cos div exp int log rand sin sqrt srand
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" String Manipulation Functions
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syn keyword awkFunction asort asort1 gensub gsub index length match
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syn keyword awkFunction patsplit split sprintf strtonum sub substr
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syn keyword awkFunction tolower toupper
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" Input Output Functions
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syn keyword awkFunction close fflush system
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" Time Functions
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syn keyword awkFunction mktime strftime systime
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" Bit Manipulation Functions
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syn keyword awkFunction and compl lshift or rshift xor
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" Getting Type Function
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syn keyword awkFunction isarray
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" String-Translation Functions
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syn keyword awkFunction bindtextdomain dcgettext dcngetext
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syn keyword awkConditional if else
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syn keyword awkRepeat while for
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syn keyword awkTodo contained TODO
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syn keyword awkPatterns BEGIN END
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" GAWK ref. Chapter 7
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" Built-in Variables That Control awk
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syn keyword awkVariables BINMODE CONVFMT FIELDWIDTHS FPAT FS
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syn keyword awkVariables IGNORECASE LINT OFMT OFS ORS PREC
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syn keyword awkVariables ROUNDMODE RS SUBSEP TEXTDOMAIN
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" Built-in Variables That Convey Information
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syn keyword awkVariables ARGC ARGV ARGIND ENVIRON ERRNO FILENAME
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syn keyword awkVariables FNR NF FUNCTAB NR PROCINFO RLENGTH RSTART
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syn keyword awkVariables RT SYMTAB
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syn keyword awkRepeat do
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" Octal format character.
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syn match awkSpecialCharacter display contained "\\[0-7]\{1,3\}"
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syn keyword awkStatement func nextfile
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" Hex format character.
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syn match awkSpecialCharacter display contained "\\x[0-9A-Fa-f]\+"
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syn match awkFieldVars "\$\d\+"
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"catch errors caused by wrong parenthesis
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syn region awkParen transparent start="(" end=")" contains=ALLBUT,awkParenError,awkSpecialCharacter,awkArrayElement,awkArrayArray,awkTodo,awkRegExp,awkBrktRegExp,awkBrackets,awkCharClass
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syn match awkParenError display ")"
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syn match awkInParen display contained "[{}]"
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" 64 lines for complex &&'s, and ||'s in a big "if"
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syn sync ccomment awkParen maxlines=64
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" Search strings & Regular Expressions therein.
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syn region awkSearch oneline start="^[ \t]*/"ms=e start="\(,\|!\=\~\)[ \t]*/"ms=e skip="\\\\\|\\/" end="/" contains=awkBrackets,awkRegExp,awkSpecialCharacter
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syn region awkBrackets contained start="\[\^\]\="ms=s+2 start="\[[^\^]"ms=s+1 end="\]"me=e-1 contains=awkBrktRegExp,awkCharClass
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syn region awkSearch oneline start="[ \t]*/"hs=e skip="\\\\\|\\/" end="/" contains=awkBrackets,awkRegExp,awkSpecialCharacter
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syn match awkCharClass contained "\[:[^:\]]*:\]"
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syn match awkBrktRegExp contained "\\.\|.\-[^]]"
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syn match awkRegExp contained "/\^"ms=s+1
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syn match awkRegExp contained "\$/"me=e-1
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syn match awkRegExp contained "[?.*{}|+]"
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" String and Character constants
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" Highlight special characters (those which have a backslash) differently
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syn region awkString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@Spell,awkSpecialCharacter,awkSpecialPrintf
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syn match awkSpecialCharacter contained "\\."
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" Some of these combinations may seem weird, but they work.
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syn match awkSpecialPrintf contained "%[-+ #]*\d*\.\=\d*[cdefgiosuxEGX%]"
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" Numbers, allowing signs (both -, and +)
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" Integer number.
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syn match awkNumber display "[+-]\=\<\d\+\>"
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" Floating point number.
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syn match awkFloat display "[+-]\=\<\d\+\.\d+\>"
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" Floating point number, starting with a dot.
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syn match awkFloat display "[+-]\=\<.\d+\>"
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syn case ignore
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"floating point number, with dot, optional exponent
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syn match awkFloat display "\<\d\+\.\d*\(e[-+]\=\d\+\)\=\>"
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"floating point number, starting with a dot, optional exponent
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syn match awkFloat display "\.\d\+\(e[-+]\=\d\+\)\=\>"
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"floating point number, without dot, with exponent
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syn match awkFloat display "\<\d\+e[-+]\=\d\+\>"
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syn case match
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"syn match awkIdentifier "\<[a-zA-Z_][a-zA-Z0-9_]*\>"
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" Arithmetic operators: +, and - take care of ++, and --
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syn match awkOperator "+\|-\|\*\|/\|%\|="
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syn match awkOperator "+=\|-=\|\*=\|/=\|%="
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syn match awkOperator "^\|^="
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" Comparison expressions.
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syn match awkExpression "==\|>=\|=>\|<=\|=<\|\!="
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syn match awkExpression "\~\|\!\~"
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syn match awkExpression "?\|:"
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syn keyword awkExpression in
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" Boolean Logic (OR, AND, NOT)
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"syn match awkBoolLogic "||\|&&\|\!"
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" This is overridden by less-than & greater-than.
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" Put this above those to override them.
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" Put this in a 'match "\<printf\=\>.*;\="' to make it not override
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" less/greater than (most of the time), but it won't work yet because
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" keywords always have precedence over match & region.
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" File I/O: (print foo, bar > "filename") & for nawk (getline < "filename")
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"syn match awkFileIO contained ">"
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"syn match awkFileIO contained "<"
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" Expression separators: ';' and ','
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syn match awkSemicolon ";"
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syn match awkComma ","
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syn match awkComment "#.*" contains=@Spell,awkTodo
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syn match awkLineSkip "\\$"
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" Highlight array element's (recursive arrays allowed).
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" Keeps nested array names' separate from normal array elements.
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" Keeps numbers separate from normal array elements (variables).
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syn match awkArrayArray contained "[^][, \t]\+\["me=e-1
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syn match awkArrayElement contained "[^][, \t]\+"
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syn region awkArray transparent start="\[" end="\]" contains=awkArray,awkArrayElement,awkArrayArray,awkNumber,awkFloat
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" 10 should be enough.
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" (for the few instances where it would be more than "oneline")
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syn sync ccomment awkArray maxlines=10
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" define the default highlighting
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" For version 5.7 and earlier: only when not done already
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" For version 5.8 and later: only when an item doesn't have highlighting yet
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if version >= 508 || !exists("did_awk_syn_inits")
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if version < 508
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let did_awk_syn_inits = 1
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command -nargs=+ HiLink hi link <args>
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else
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command -nargs=+ HiLink hi def link <args>
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endif
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HiLink awkConditional Conditional
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HiLink awkFunction Function
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HiLink awkRepeat Repeat
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HiLink awkStatement Statement
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HiLink awkString String
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HiLink awkSpecialPrintf Special
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HiLink awkSpecialCharacter Special
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HiLink awkSearch String
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HiLink awkBrackets awkRegExp
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HiLink awkBrktRegExp awkNestRegExp
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HiLink awkCharClass awkNestRegExp
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HiLink awkNestRegExp Keyword
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HiLink awkRegExp Special
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HiLink awkNumber Number
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HiLink awkFloat Float
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HiLink awkFileIO Special
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HiLink awkOperator Special
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HiLink awkExpression Special
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HiLink awkBoolLogic Special
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HiLink awkPatterns Special
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HiLink awkVariables Special
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HiLink awkFieldVars Special
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HiLink awkLineSkip Special
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HiLink awkSemicolon Special
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HiLink awkComma Special
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"HiLink awkIdentifier Identifier
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HiLink awkComment Comment
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HiLink awkTodo Todo
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" Change this if you want nested array names to be highlighted.
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HiLink awkArrayArray awkArray
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HiLink awkArrayElement Special
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HiLink awkParenError awkError
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HiLink awkInParen awkError
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HiLink awkError Error
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delcommand HiLink
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endif
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let b:current_syntax = "awk"
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let &cpo = s:cpo_save
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unlet s:cpo_save
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" vim: ts=8
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