" Vim syntax file
" Language: BASIC
" Maintainer: Allan Kelly <allan@fruitloaf.co.uk>
" Last Change: 2011 Dec 25 by Thilo Six
" First version based on Micro$soft QBASIC circa 1989, as documented in
" 'Learn BASIC Now' by Halvorson&Rygmyr. Microsoft Press 1989.
" This syntax file not a complete implementation yet. Send suggestions to the
" maintainer.
" 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 BASIC keywords
syn keyword basicStatement BEEP beep Beep BLOAD bload Bload BSAVE bsave Bsave
syn keyword basicStatement CALL call Call ABSOLUTE absolute Absolute
syn keyword basicStatement CHAIN chain Chain CHDIR chdir Chdir
syn keyword basicStatement CIRCLE circle Circle CLEAR clear Clear
syn keyword basicStatement CLOSE close Close CLS cls Cls COLOR color Color
syn keyword basicStatement COM com Com COMMON common Common
syn keyword basicStatement CONST const Const DATA data Data
syn keyword basicStatement DECLARE declare Declare DEF def Def
syn keyword basicStatement DEFDBL defdbl Defdbl DEFINT defint Defint
syn keyword basicStatement DEFLNG deflng Deflng DEFSNG defsng Defsng
syn keyword basicStatement DEFSTR defstr Defstr DIM dim Dim
syn keyword basicStatement DO do Do LOOP loop Loop
syn keyword basicStatement DRAW draw Draw END end End
syn keyword basicStatement ENVIRON environ Environ ERASE erase Erase
syn keyword basicStatement ERROR error Error EXIT exit Exit
syn keyword basicStatement FIELD field Field FILES files Files
syn keyword basicStatement FOR for For NEXT next Next
syn keyword basicStatement FUNCTION function Function GET get Get
syn keyword basicStatement GOSUB gosub Gosub GOTO goto Goto
syn keyword basicStatement IF if If THEN then Then ELSE else Else
syn keyword basicStatement INPUT input Input INPUT# input# Input#
syn keyword basicStatement IOCTL ioctl Ioctl KEY key Key
syn keyword basicStatement KILL kill Kill LET let Let
syn keyword basicStatement LINE line Line LOCATE locate Locate
syn keyword basicStatement LOCK lock Lock UNLOCK unlock Unlock
syn keyword basicStatement LPRINT lprint Lprint USING using Using
syn keyword basicStatement LSET lset Lset MKDIR mkdir Mkdir
syn keyword basicStatement NAME name Name ON on On
syn keyword basicStatement ERROR error Error OPEN open Open
syn keyword basicStatement OPTION option Option BASE base Base
syn keyword basicStatement OUT out Out PAINT paint Paint
syn keyword basicStatement PALETTE palette Palette PCOPY pcopy Pcopy
syn keyword basicStatement PEN pen Pen PLAY play Play
syn keyword basicStatement PMAP pmap Pmap POKE poke Poke
syn keyword basicStatement PRESET preset Preset PRINT print Print
syn keyword basicStatement PRINT# print# Print# USING using Using
syn keyword basicStatement PSET pset Pset PUT put Put
syn keyword basicStatement RANDOMIZE randomize Randomize READ read Read
syn keyword basicStatement REDIM redim Redim RESET reset Reset
syn keyword basicStatement RESTORE restore Restore RESUME resume Resume
syn keyword basicStatement RETURN return Return RMDIR rmdir Rmdir
syn keyword basicStatement RSET rset Rset RUN run Run
syn keyword basicStatement SEEK seek Seek SELECT select Select
syn keyword basicStatement CASE case Case SHARED shared Shared
syn keyword basicStatement SHELL shell Shell SLEEP sleep Sleep
syn keyword basicStatement SOUND sound Sound STATIC static Static
syn keyword basicStatement STOP stop Stop STRIG strig Strig
syn keyword basicStatement SUB sub Sub SWAP swap Swap
syn keyword basicStatement SYSTEM system System TIMER timer Timer
syn keyword basicStatement TROFF troff Troff TRON tron Tron
syn keyword basicStatement TYPE type Type UNLOCK unlock Unlock
syn keyword basicStatement VIEW view View WAIT wait Wait
syn keyword basicStatement WHILE while While WEND wend Wend
syn keyword basicStatement WIDTH width Width WINDOW window Window
syn keyword basicStatement WRITE write Write DATE$ date$ Date$
syn keyword basicStatement MID$ mid$ Mid$ TIME$ time$ Time$
syn keyword basicFunction ABS abs Abs ASC asc Asc
syn keyword basicFunction ATN atn Atn CDBL cdbl Cdbl
syn keyword basicFunction CINT cint Cint CLNG clng Clng
syn keyword basicFunction COS cos Cos CSNG csng Csng
syn keyword basicFunction CSRLIN csrlin Csrlin CVD cvd Cvd
syn keyword basicFunction CVDMBF cvdmbf Cvdmbf CVI cvi Cvi
syn keyword basicFunction CVL cvl Cvl CVS cvs Cvs
syn keyword basicFunction CVSMBF cvsmbf Cvsmbf EOF eof Eof
syn keyword basicFunction ERDEV erdev Erdev ERL erl Erl
syn keyword basicFunction ERR err Err EXP exp Exp
syn keyword basicFunction FILEATTR fileattr Fileattr FIX fix Fix
syn keyword basicFunction FRE fre Fre FREEFILE freefile Freefile
syn keyword basicFunction INP inp Inp INSTR instr Instr
syn keyword basicFunction INT int Int LBOUND lbound Lbound
syn keyword basicFunction LEN len Len LOC loc Loc
syn keyword basicFunction LOF lof Lof LOG log Log
syn keyword basicFunction LPOS lpos Lpos PEEK peek Peek
syn keyword basicFunction PEN pen Pen POINT point Point
syn keyword basicFunction POS pos Pos RND rnd Rnd
syn keyword basicFunction SADD sadd Sadd SCREEN screen Screen
syn keyword basicFunction SEEK seek Seek SETMEM setmem Setmem
syn keyword basicFunction SGN sgn Sgn SIN sin Sin
syn keyword basicFunction SPC spc Spc SQR sqr Sqr
syn keyword basicFunction STICK stick Stick STRIG strig Strig
syn keyword basicFunction TAB tab Tab TAN tan Tan
syn keyword basicFunction UBOUND ubound Ubound VAL val Val
syn keyword basicFunction VALPTR valptr Valptr VALSEG valseg Valseg
syn keyword basicFunction VARPTR varptr Varptr VARSEG varseg Varseg
syn keyword basicFunction CHR$ Chr$ chr$ COMMAND$ command$ Command$
syn keyword basicFunction DATE$ date$ Date$ ENVIRON$ environ$ Environ$
syn keyword basicFunction ERDEV$ erdev$ Erdev$ HEX$ hex$ Hex$
syn keyword basicFunction INKEY$ inkey$ Inkey$ INPUT$ input$ Input$
syn keyword basicFunction IOCTL$ ioctl$ Ioctl$ LCASES$ lcases$ Lcases$
syn keyword basicFunction LAFT$ laft$ Laft$ LTRIM$ ltrim$ Ltrim$
syn keyword basicFunction MID$ mid$ Mid$ MKDMBF$ mkdmbf$ Mkdmbf$
syn keyword basicFunction MKD$ mkd$ Mkd$ MKI$ mki$ Mki$
syn keyword basicFunction MKL$ mkl$ Mkl$ MKSMBF$ mksmbf$ Mksmbf$
syn keyword basicFunction MKS$ mks$ Mks$ OCT$ oct$ Oct$
syn keyword basicFunction RIGHT$ right$ Right$ RTRIM$ rtrim$ Rtrim$
syn keyword basicFunction SPACE$ space$ Space$ STR$ str$ Str$
syn keyword basicFunction STRING$ string$ String$ TIME$ time$ Time$
syn keyword basicFunction UCASE$ ucase$ Ucase$ VARPTR$ varptr$ Varptr$
syn keyword basicTodo contained TODO
"integer number, or floating point number without a dot.
syn match basicNumber "\<\d\+\>"
"floating point number, with dot
syn match basicNumber "\<\d\+\.\d*\>"
"floating point number, starting with a dot
syn match basicNumber "\.\d\+\>"
" String and Character contstants
syn match basicSpecial contained "\\\d\d\d\|\\."
syn region basicString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=basicSpecial
syn region basicComment start="REM" end="$" contains=basicTodo
syn region basicComment start="^[ \t]*'" end="$" contains=basicTodo
syn region basicLineNumber start="^\d" end="\s"
syn match basicTypeSpecifier "[a-zA-Z0-9][\$%&!#]"ms=s+1
" Used with OPEN statement
syn match basicFilenumber "#\d\+"
"syn sync ccomment basicComment
" syn match basicMathsOperator "[<>+\*^/\\=-]"
syn match basicMathsOperator "-\|=\|[:<>+\*^/\\]\|AND\|OR"
" Define the default highlighting.
" Only when an item doesn't have highlighting yet
hi def link basicLabel Label
hi def link basicConditional Conditional
hi def link basicRepeat Repeat
hi def link basicLineNumber Comment
hi def link basicNumber Number
hi def link basicError Error
hi def link basicStatement Statement
hi def link basicString String
hi def link basicComment Comment
hi def link basicSpecial Special
hi def link basicTodo Todo
hi def link basicFunction Identifier
hi def link basicTypeSpecifier Type
hi def link basicFilenumber basicTypeSpecifier
"hi basicMathsOperator term=bold cterm=bold gui=bold
let b:current_syntax = "basic"
let &cpo = s:cpo_save
unlet s:cpo_save
" vim: ts=8
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