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awk.vim
" Vim syntax file " Language: awk, nawk, gawk, mawk " Maintainer: Antonio Colombo <azc100@gmail.com> " Last Change: 2016 Sep 05 " AWK ref. is: Alfred V. Aho, Brian W. Kernighan, Peter J. Weinberger " The AWK Programming Language, Addison-Wesley, 1988 " GAWK ref. is: Arnold D. Robbins " Effective AWK Programming, Third Edition, O'Reilly, 2001 " Effective AWK Programming, Fourth Edition, O'Reilly, 2015 " (also available and updated with the gawk source distribution) " MAWK is a "new awk" meaning it implements AWK ref. " mawk conforms to the Posix 1003.2 (draft 11.3) " definition of the AWK language which contains a few features " not described in the AWK book, and mawk provides a small number of extensions. " TODO: " Dig into the commented out syntax expressions below. " Quit when a syntax file was already loaded if exists("b:current_syntax") finish endif let s:cpo_save = &cpo set cpo&vim " A bunch of useful Awk keywords " AWK ref. p. 188 syn keyword awkStatement break continue delete exit syn keyword awkStatement function getline next syn keyword awkStatement print printf return " GAWK ref. Chapter 7-9 syn keyword awkStatement switch nextfile syn keyword awkStatement func " " GAWK ref. Chapter 9, Functions " Numeric Functions syn keyword awkFunction atan2 cos exp int intdiv log rand sin sqrt srand " String Manipulation Functions syn keyword awkFunction asort asort1 gensub gsub index length match syn keyword awkFunction patsplit split sprintf strtonum sub substr syn keyword awkFunction tolower toupper " Input Output Functions syn keyword awkFunction close fflush system " Time Functions syn keyword awkFunction mktime strftime systime " Bit Manipulation Functions syn keyword awkFunction and compl lshift or rshift xor " Getting Type Functions syn keyword awkFunction isarray typeof " String-Translation Functions syn keyword awkFunction bindtextdomain dcgettext dcngetext syn keyword awkConditional if else syn keyword awkRepeat while for do syn keyword awkTodo contained TODO syn keyword awkPatterns BEGIN END BEGINFILE ENDFILE " GAWK ref. Chapter 7 " Built-in Variables That Control awk syn keyword awkVariables BINMODE CONVFMT FIELDWIDTHS FPAT FS syn keyword awkVariables IGNORECASE LINT OFMT OFS ORS PREC syn keyword awkVariables ROUNDMODE RS SUBSEP TEXTDOMAIN " Built-in Variables That Convey Information syn keyword awkVariables ARGC ARGV ARGIND ENVIRON ERRNO FILENAME syn keyword awkVariables FNR NF FUNCTAB NR PROCINFO RLENGTH RSTART syn keyword awkVariables RT SYMTAB " Arithmetic operators: +, and - take care of ++, and -- syn match awkOperator "+\|-\|\*\|/\|%\|=" syn match awkOperator "+=\|-=\|\*=\|/=\|%=" syn match awkOperator "\^\|\^=" " Octal format character. syn match awkSpecialCharacter display contained "\\[0-7]\{1,3\}" " Hex format character. syn match awkSpecialCharacter display contained "\\x[0-9A-Fa-f]\+" syn match awkFieldVars "\$\d\+" " catch errors caused by wrong parenthesis syn region awkParen transparent start="(" end=")" contains=ALLBUT,awkParenError,awkSpecialCharacter,awkArrayElement,awkArrayArray,awkTodo,awkRegExp,awkBrktRegExp,awkBrackets,awkCharClass,awkComment syn match awkParenError display ")" "syn match awkInParen display contained "[{}]" " 64 lines for complex &&'s, and ||'s in a big "if" syn sync ccomment awkParen maxlines=64 " Search strings & Regular Expressions therein. syn region awkSearch oneline start="^[ \t]*/"ms=e start="\(,\|!\=\~\)[ \t]*/"ms=e skip="\\\\\|\\/" end="/" contains=awkBrackets,awkRegExp,awkSpecialCharacter syn region awkBrackets contained start="\[\^\]\="ms=s+2 start="\[[^\^]"ms=s+1 end="\]"me=e-1 contains=awkBrktRegExp,awkCharClass syn region awkSearch oneline start="[ \t]*/"hs=e skip="\\\\\|\\/" end="/" contains=awkBrackets,awkRegExp,awkSpecialCharacter syn match awkCharClass contained "\[:[^:\]]*:\]" syn match awkBrktRegExp contained "\\.\|.\-[^]]" syn match awkRegExp contained "/\^"ms=s+1 syn match awkRegExp contained "\$/"me=e-1 syn match awkRegExp contained "[?.*{}|+]" " String and Character constants " Highlight special characters (those which have a backslash) differently syn region awkString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@Spell,awkSpecialCharacter,awkSpecialPrintf syn match awkSpecialCharacter contained "\\." " Some of these combinations may seem weird, but they work. syn match awkSpecialPrintf contained "%[-+ #]*\d*\.\=\d*[cdefgiosuxEGX%]" " Numbers, allowing signs (both -, and +) " Integer number. syn match awkNumber display "[+-]\=\<\d\+\>" " Floating point number. syn match awkFloat display "[+-]\=\<\d\+\.\d+\>" " Floating point number, starting with a dot. syn match awkFloat display "[+-]\=\<.\d+\>" syn case ignore "floating point number, with dot, optional exponent syn match awkFloat display "\<\d\+\.\d*\(e[-+]\=\d\+\)\=\>" "floating point number, starting with a dot, optional exponent syn match awkFloat display "\.\d\+\(e[-+]\=\d\+\)\=\>" "floating point number, without dot, with exponent syn match awkFloat display "\<\d\+e[-+]\=\d\+\>" syn case match "syn match awkIdentifier "\<[a-zA-Z_][a-zA-Z0-9_]*\>" " Comparison expressions. syn match awkExpression "==\|>=\|=>\|<=\|=<\|\!=" syn match awkExpression "\~\|\!\~" syn match awkExpression "?\|:" syn keyword awkExpression in " Boolean Logic (OR, AND, NOT) syn match awkBoolLogic "||\|&&\|\!" " This is overridden by less-than & greater-than. " Put this above those to override them. " Put this in a 'match "\<printf\=\>.*;\="' to make it not override " less/greater than (most of the time), but it won't work yet because " keywords always have precedence over match & region. " File I/O: (print foo, bar > "filename") & for nawk (getline < "filename") "syn match awkFileIO contained ">" "syn match awkFileIO contained "<" " Expression separators: ';' and ',' syn match awkSemicolon ";" syn match awkComma "," syn match awkComment "#.*" contains=@Spell,awkTodo syn match awkLineSkip "\\$" " Highlight array element's (recursive arrays allowed). " Keeps nested array names' separate from normal array elements. " Keeps numbers separate from normal array elements (variables). syn match awkArrayArray contained "[^][, \t]\+\["me=e-1 syn match awkArrayElement contained "[^][, \t]\+" syn region awkArray transparent start="\[" end="\]" contains=awkArray,awkArrayElement,awkArrayArray,awkNumber,awkFloat " 10 should be enough. " (for the few instances where it would be more than "oneline") syn sync ccomment awkArray maxlines=10 " Define the default highlighting. hi def link awkConditional Conditional hi def link awkFunction Function hi def link awkRepeat Repeat hi def link awkStatement Statement hi def link awkString String hi def link awkSpecialPrintf Special hi def link awkSpecialCharacter Special hi def link awkSearch String hi def link awkBrackets awkRegExp hi def link awkBrktRegExp awkNestRegExp hi def link awkCharClass awkNestRegExp hi def link awkNestRegExp Keyword hi def link awkRegExp Special hi def link awkNumber Number hi def link awkFloat Float hi def link awkFileIO Special hi def link awkOperator Special hi def link awkExpression Special hi def link awkBoolLogic Special hi def link awkPatterns Special hi def link awkVariables Special hi def link awkFieldVars Special hi def link awkLineSkip Special hi def link awkSemicolon Special hi def link awkComma Special hi def link awkIdentifier Identifier hi def link awkComment Comment hi def link awkTodo Todo " Change this if you want nested array names to be highlighted. hi def link awkArrayArray awkArray hi def link awkArrayElement Special hi def link awkParenError awkError hi def link awkInParen awkError hi def link awkError Error let b:current_syntax = "awk" let &cpo = s:cpo_save unlet s:cpo_save " vim: ts=8
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