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