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forth.vim
" Vim syntax file " Language: FORTH " Current Maintainer: Johan Kotlinski <kotlinski@gmail.com> " Previous Maintainer: Christian V. J. Brüssow <cvjb@cvjb.de> " Last Change: 2018-03-29 " Filenames: *.fs,*.ft " URL: https://github.com/jkotlinski/forth.vim " quit when a syntax file was already loaded if exists("b:current_syntax") finish endif let s:cpo_save = &cpo set cpo&vim " Synchronization method syn sync ccomment syn sync maxlines=200 " I use gforth, so I set this to case ignore syn case ignore " Some special, non-FORTH keywords syn keyword forthTodo contained TODO FIXME XXX syn match forthTodo contained 'Copyright\(\s([Cc])\)\=\(\s[0-9]\{2,4}\)\=' " Characters allowed in keywords " I don't know if 128-255 are allowed in ANS-FORTH setlocal iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255 " when wanted, highlight trailing white space if exists("forth_space_errors") if !exists("forth_no_trail_space_error") syn match forthSpaceError display excludenl "\s\+$" endif if !exists("forth_no_tab_space_error") syn match forthSpaceError display " \+\t"me=e-1 endif endif " Keywords " basic mathematical and logical operators syn keyword forthOperators + - * / MOD /MOD NEGATE ABS MIN MAX syn keyword forthOperators AND OR XOR NOT LSHIFT RSHIFT INVERT 2* 2/ 1+ syn keyword forthOperators 1- 2+ 2- 8* UNDER+ syn keyword forthOperators M+ */ */MOD M* UM* M*/ UM/MOD FM/MOD SM/REM syn keyword forthOperators D+ D- DNEGATE DABS DMIN DMAX D2* D2/ syn keyword forthOperators F+ F- F* F/ FNEGATE FABS FMAX FMIN FLOOR FROUND syn keyword forthOperators F** FSQRT FEXP FEXPM1 FLN FLNP1 FLOG FALOG FSIN syn keyword forthOperators FCOS FSINCOS FTAN FASIN FACOS FATAN FATAN2 FSINH syn keyword forthOperators FCOSH FTANH FASINH FACOSH FATANH F2* F2/ 1/F syn keyword forthOperators F~REL F~ABS F~ syn keyword forthOperators 0< 0<= 0<> 0= 0> 0>= < <= <> = > >= U< U<= syn keyword forthOperators U> U>= D0< D0<= D0<> D0= D0> D0>= D< D<= D<> syn keyword forthOperators D= D> D>= DU< DU<= DU> DU>= WITHIN ?NEGATE syn keyword forthOperators ?DNEGATE TRUE FALSE " various words that take an input and do something with it syn keyword forthFunction . U. .R U.R " stack manipulations syn keyword forthStack DROP NIP DUP OVER TUCK SWAP ROT -ROT ?DUP PICK ROLL syn keyword forthStack 2DROP 2NIP 2DUP 2OVER 2TUCK 2SWAP 2ROT 2-ROT syn keyword forthStack 3DUP 4DUP 5DUP 3DROP 4DROP 5DROP 8DROP 4SWAP 4ROT syn keyword forthStack 4-ROT 4TUCK 8SWAP 8DUP syn keyword forthRStack >R R> R@ RDROP 2>R 2R> 2R@ 2RDROP syn keyword forthRstack 4>R 4R> 4R@ 4RDROP syn keyword forthFStack FDROP FNIP FDUP FOVER FTUCK FSWAP FROT " stack pointer manipulations syn keyword forthSP SP@ SP! FP@ FP! RP@ RP! LP@ LP! DEPTH " address operations syn keyword forthMemory @ ! +! C@ C! 2@ 2! F@ F! SF@ SF! DF@ DF! syn keyword forthAdrArith CHARS CHAR+ CELLS CELL+ CELL ALIGN ALIGNED FLOATS syn keyword forthAdrArith FLOAT+ FLOAT FALIGN FALIGNED SFLOATS SFLOAT+ syn keyword forthAdrArith SFALIGN SFALIGNED DFLOATS DFLOAT+ DFALIGN DFALIGNED syn keyword forthAdrArith MAXALIGN MAXALIGNED CFALIGN CFALIGNED syn keyword forthAdrArith ADDRESS-UNIT-BITS ALLOT ALLOCATE HERE syn keyword forthMemBlks MOVE ERASE CMOVE CMOVE> FILL BLANK UNUSED " conditionals syn keyword forthCond IF ELSE ENDIF THEN CASE OF ENDOF ENDCASE ?DUP-IF syn keyword forthCond ?DUP-0=-IF AHEAD CS-PICK CS-ROLL CATCH THROW WITHIN " iterations syn keyword forthLoop BEGIN WHILE REPEAT UNTIL AGAIN syn keyword forthLoop ?DO LOOP I J K +DO U+DO -DO U-DO DO +LOOP -LOOP syn keyword forthLoop UNLOOP LEAVE ?LEAVE EXIT DONE FOR NEXT RECURSE " new words syn match forthClassDef '\<:class\s*[^ \t]\+\>' syn match forthObjectDef '\<:object\s*[^ \t]\+\>' syn match forthColonDef '\<:m\?\s*[^ \t]\+\>' syn keyword forthEndOfColonDef ; ;M ;m syn keyword forthEndOfClassDef ;class syn keyword forthEndOfObjectDef ;object syn keyword forthDefine CONSTANT 2CONSTANT FCONSTANT VARIABLE 2VARIABLE syn keyword forthDefine FVARIABLE CREATE USER VALUE TO DEFER IS DOES> IMMEDIATE syn keyword forthDefine COMPILE-ONLY COMPILE RESTRICT INTERPRET POSTPONE EXECUTE syn keyword forthDefine LITERAL CREATE-INTERPRET/COMPILE INTERPRETATION> syn keyword forthDefine <INTERPRETATION COMPILATION> <COMPILATION ] LASTXT syn keyword forthDefine COMP' POSTPONE, FIND-NAME NAME>INT NAME?INT NAME>COMP syn keyword forthDefine NAME>STRING STATE C; CVARIABLE BUFFER: MARKER syn keyword forthDefine , 2, F, C, COMPILE, syn match forthDefine "\[IFDEF]" syn match forthDefine "\[IFUNDEF]" syn match forthDefine "\[THEN]" syn match forthDefine "\[ENDIF]" syn match forthDefine "\[ELSE]" syn match forthDefine "\[?DO]" syn match forthDefine "\[DO]" syn match forthDefine "\[LOOP]" syn match forthDefine "\[+LOOP]" syn match forthDefine "\[NEXT]" syn match forthDefine "\[BEGIN]" syn match forthDefine "\[UNTIL]" syn match forthDefine "\[AGAIN]" syn match forthDefine "\[WHILE]" syn match forthDefine "\[REPEAT]" syn match forthDefine "\[COMP']" syn match forthDefine "'" syn match forthDefine '\<\[\>' syn match forthDefine "\[']" syn match forthDefine '\[COMPILE]' syn match forthDefine '\[CHAR]' " debugging syn keyword forthDebug PRINTDEBUGDATA PRINTDEBUGLINE syn match forthDebug "\<\~\~\>" " Assembler syn keyword forthAssembler ASSEMBLER CODE END-CODE ;CODE FLUSH-ICACHE C, " basic character operations syn keyword forthCharOps (.) CHAR EXPECT FIND WORD TYPE -TRAILING EMIT KEY syn keyword forthCharOps KEY? TIB CR BL COUNT SPACE SPACES " recognize 'char (' or '[char] (' correctly, so it doesn't " highlight everything after the paren as a comment till a closing ')' syn match forthCharOps '\<char\s\S\s' syn match forthCharOps '\<\[char\]\s\S\s' syn region forthCharOps start=+."\s+ skip=+\\"+ end=+"+ " char-number conversion syn keyword forthConversion <<# <# # #> #>> #S (NUMBER) (NUMBER?) CONVERT D>F syn keyword forthConversion D>S DIGIT DPL F>D HLD HOLD NUMBER S>D SIGN >NUMBER syn keyword forthConversion F>S S>F HOLDS " interpreter, wordbook, compiler syn keyword forthForth (LOCAL) BYE COLD ABORT >BODY >NEXT >LINK CFA >VIEW HERE syn keyword forthForth PAD WORDS VIEW VIEW> N>LINK NAME> LINK> L>NAME FORGET syn keyword forthForth BODY> ASSERT( ASSERT0( ASSERT1( ASSERT2( ASSERT3( ) syn keyword forthForth >IN ACCEPT ENVIRONMENT? EVALUATE QUIT SOURCE ACTION-OF syn keyword forthForth DEFER! DEFER@ PARSE PARSE-NAME REFILL RESTORE-INPUT syn keyword forthForth SAVE-INPUT SOURCE-ID syn region forthForth start=+ABORT"\s+ skip=+\\"+ end=+"+ " vocabularies syn keyword forthVocs ONLY FORTH ALSO ROOT SEAL VOCS ORDER CONTEXT #VOCS syn keyword forthVocs VOCABULARY DEFINITIONS " File keywords syn keyword forthFileMode R/O R/W W/O BIN syn keyword forthFileWords OPEN-FILE CREATE-FILE CLOSE-FILE DELETE-FILE syn keyword forthFileWords RENAME-FILE READ-FILE READ-LINE KEY-FILE syn keyword forthFileWords KEY?-FILE WRITE-FILE WRITE-LINE EMIT-FILE syn keyword forthFileWords FLUSH-FILE FILE-STATUS FILE-POSITION syn keyword forthFileWords REPOSITION-FILE FILE-SIZE RESIZE-FILE syn keyword forthFileWords SLURP-FILE SLURP-FID STDIN STDOUT STDERR syn keyword forthFileWords INCLUDE-FILE INCLUDED REQUIRED syn keyword forthBlocks OPEN-BLOCKS USE LOAD --> BLOCK-OFFSET syn keyword forthBlocks GET-BLOCK-FID BLOCK-POSITION LIST SCR BLOCK syn keyword forthBlocks BUFER EMPTY-BUFFERS EMPTY-BUFFER UPDATE UPDATED? syn keyword forthBlocks SAVE-BUFFERS SAVE-BUFFER FLUSH THRU +LOAD +THRU syn keyword forthBlocks BLOCK-INCLUDED BLK " numbers syn keyword forthMath DECIMAL HEX BASE syn match forthInteger '\<-\=[0-9]\+.\=\>' syn match forthInteger '\<&-\=[0-9]\+.\=\>' " recognize hex and binary numbers, the '$' and '%' notation is for gforth syn match forthInteger '\<\$\x*\x\+\>' " *1* --- dont't mess syn match forthInteger '\<\x*\d\x*\>' " *2* --- this order! syn match forthInteger '\<%[0-1]*[0-1]\+\>' syn match forthFloat '\<-\=\d*[.]\=\d\+[DdEe]\d\+\>' syn match forthFloat '\<-\=\d*[.]\=\d\+[DdEe][-+]\d\+\>' " XXX If you find this overkill you can remove it. this has to come after the " highlighting for numbers otherwise it has no effect. syn region forthComment start='0 \[if\]' end='\[endif\]' end='\[then\]' contains=forthTodo " Strings syn region forthString start=+\.*\"+ end=+"+ end=+$+ " XXX syn region forthString start=+s\"+ end=+"+ end=+$+ syn region forthString start=+s\\\"+ end=+"+ end=+$+ syn region forthString start=+c\"+ end=+"+ end=+$+ " Comments syn match forthComment '\\\s.*$' contains=forthTodo,forthSpaceError syn region forthComment start='\\S\s' end='.*' contains=forthTodo,forthSpaceError syn match forthComment '\.(\s[^)]*)' contains=forthTodo,forthSpaceError syn region forthComment start='\(^\|\s\)\zs(\s' skip='\\)' end=')' contains=forthTodo,forthSpaceError syn region forthComment start='/\*' end='\*/' contains=forthTodo,forthSpaceError " Include files syn match forthInclude '^INCLUDE\s\+\k\+' syn match forthInclude '^REQUIRE\s\+\k\+' syn match forthInclude '^FLOAD\s\+' syn match forthInclude '^NEEDS\s\+' " Locals definitions syn region forthLocals start='{\s' start='{$' end='\s}' end='^}' syn match forthLocals '{ }' " otherwise, at least two spaces between syn region forthDeprecated start='locals|' end='|' " Define the default highlighting. hi def link forthTodo Todo hi def link forthOperators Operator hi def link forthMath Number hi def link forthInteger Number hi def link forthFloat Float hi def link forthStack Special hi def link forthRstack Special hi def link forthFStack Special hi def link forthSP Special hi def link forthMemory Function hi def link forthAdrArith Function hi def link forthMemBlks Function hi def link forthCond Conditional hi def link forthLoop Repeat hi def link forthColonDef Define hi def link forthEndOfColonDef Define hi def link forthDefine Define hi def link forthDebug Debug hi def link forthAssembler Include hi def link forthCharOps Character hi def link forthConversion String hi def link forthForth Statement hi def link forthVocs Statement hi def link forthString String hi def link forthComment Comment hi def link forthClassDef Define hi def link forthEndOfClassDef Define hi def link forthObjectDef Define hi def link forthEndOfObjectDef Define hi def link forthInclude Include hi def link forthLocals Type " nothing else uses type and locals must stand out hi def link forthDeprecated Error " if you must, change to Type hi def link forthFileMode Function hi def link forthFunction Function hi def link forthFileWords Statement hi def link forthBlocks Statement hi def link forthSpaceError Error let b:current_syntax = "forth" let &cpo = s:cpo_save unlet s:cpo_save " vim:ts=8:sw=4:nocindent:smartindent:
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