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diff --git a/runtime/syntax/awk.vim b/runtime/syntax/awk.vim new file mode 100644 index 0000000..3082c1c --- /dev/null +++ b/runtime/syntax/awk.vim @@ -0,0 +1,217 @@ +" Vim syntax file +" Language: awk, nawk, gawk, mawk +" Maintainer: Doug Kearns <dougkearns@gmail.com> +" Previous Maintainer: Antonio Colombo <azc100@gmail.com> +" Last Change: 2020 Aug 18 + +" 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 +" (up-to-date version available 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 + +syn iskeyword @,48-57,_,192-255,@-@ + +" 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 case default switch nextfile +syn keyword awkStatement func +" GAWK ref. Chapter 2.7, Including Other Files into Your Program +" GAWK ref. Chapter 2.8, Loading Dynamic Extensions into Your Program +" GAWK ref. Chapter 15, Namespaces +" Directives +syn keyword awkStatement @include @load @namespace +" +" GAWK ref. Chapter 9, Functions +" Numeric Functions +syn keyword awkFunction atan2 cos exp int log rand sin sqrt srand +" String Manipulation Functions +syn keyword awkFunction asort asorti 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 Information 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 |