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diff --git a/runtime/syntax/awk.vim b/runtime/syntax/awk.vim new file mode 100644 index 000000000..00a689d46 --- /dev/null +++ b/runtime/syntax/awk.vim @@ -0,0 +1,216 @@ +" Vim syntax file +" Language: awk, nawk, gawk, mawk +" Maintainer: Antonio Colombo <antonio.colombo@jrc.it> +" Last Change: 2002 Jun 23 + +" 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 + +" 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. + +" For version 5.x: Clear all syntax items +" For version 6.x: Quit when a syntax file was already loaded +if version < 600 + syn clear +elseif exists("b:current_syntax") + finish +endif + +" 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. p. 117 +syn keyword awkStatement nextfile +" AWK ref. p. 42, GAWK ref. p. 142-166 +syn keyword awkFunction atan2 close cos exp fflush int log rand sin sqrt srand +syn keyword awkFunction gsub index length match split sprintf sub +syn keyword awkFunction substr system +" GAWK ref. p. 142-166 +syn keyword awkFunction asort gensub mktime strftime strtonum systime +syn keyword awkFunction tolower toupper +syn keyword awkFunction and or xor compl lshift rshift +syn keyword awkFunction dcgettext bindtextdomain + +syn keyword awkConditional if else +syn keyword awkRepeat while for + +syn keyword awkTodo contained TODO + +syn keyword awkPatterns BEGIN END +" AWK ref. p. 36 +syn keyword awkVariables ARGC ARGV FILENAME FNR FS NF NR +syn keyword awkVariables OFMT OFS ORS RLENGTH RS RSTART SUBSEP +" GAWK ref. p. 120-126 +syn keyword awkVariables ARGIND BINMODE CONVFMT ENVIRON ERRNO +syn keyword awkVariables FIELDWIDTHS IGNORECASE LINT PROCINFO +syn keyword awkVariables RT RLENGTH TEXTDOMAIN + +syn keyword awkRepeat do + +" Octal format character. +syn match awkSpecialCharacter display contained "\\[0-7]\{1,3\}" +syn keyword awkStatement func nextfile +" 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 +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=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_]*\>" + +" Arithmetic operators: +, and - take care of ++, and -- +"syn match awkOperator "+\|-\|\*\|/\|%\|=" +"syn match awkOperator "+=\|-=\|\*=\|/=\|%=" +"syn match awkOperator "^\|^=" + +" 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 allways 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=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 +" For version 5.7 and earlier: only when not done already +" For version 5.8 and later: only when an item doesn't have highlightling yet +if version >= 508 || !exists("did_awk_syn_inits") + if version < 508 + let did_awk_syn_inits = 1 + command -nargs=+ HiLink hi link <args> + else + command -nargs=+ HiLink hi def link <args> + endif + + HiLink awkConditional Conditional + HiLink awkFunction Function + HiLink awkRepeat Repeat + HiLink awkStatement Statement + + HiLink awkString String + HiLink awkSpecialPrintf Special + HiLink awkSpecialCharacter Special + + HiLink awkSearch String + HiLink awkBrackets awkRegExp + HiLink awkBrktRegExp awkNestRegExp + HiLink awkCharClass awkNestRegExp + HiLink awkNestRegExp Keyword + HiLink awkRegExp Special + + HiLink awkNumber Number + HiLink awkFloat Float + + HiLink awkFileIO Special + "HiLink awkOperator Special + "HiLink awkExpression Special + HiLink awkBoolLogic Special + + HiLink awkPatterns Special + HiLink awkVariables Special + HiLink awkFieldVars Special + + HiLink awkLineSkip Special + HiLink awkSemicolon Special + HiLink awkComma Special + "HiLink awkIdentifier Identifier + + HiLink awkComment Comment + HiLink awkTodo Todo + + " Change this if you want nested array names to be highlighted. + HiLink awkArrayArray awkArray + HiLink awkArrayElement Special + + HiLink awkParenError awkError + HiLink awkInParen awkError + HiLink awkError Error + + delcommand HiLink +endif + +let b:current_syntax = "awk" + +" vim: ts=8 |