238 lines
4.3 KiB
Forth
238 lines
4.3 KiB
Forth
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~mak\utils.f
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CREATE GetOp_STR 80 ALLOT
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C" SkipDelimiters" FIND NIP 0=
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[IF]
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: 2+ 2 + ;
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: 0! OFF ;
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: 1+! incr ;
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: 1-! DECR ;
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: EndOfChunk ( -- flag )
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>IN @ SOURCE NIP < 0= \ >IN ¥ ¬¥ìè¥, 祬 ¤«¨ ç ª
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;
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: CharAddr ( -- c-addr )
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SOURCE DROP >IN @ +
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;
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: PeekChar ( -- char )
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CharAddr C@ \ ᨬ¢®« ¨§ ⥪ã饣® § 票ï >IN
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;
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: GetChar ( -- char flag )
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EndOfChunk
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IF 0 FALSE
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ELSE PeekChar TRUE THEN
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;
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: IsDelimiter ( char -- flag )
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BL 1+ < ;
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: OnDelimiter ( -- flag )
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GetChar SWAP IsDelimiter AND
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;
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: SkipDelimiters ( -- ) \ ¯à®¯ãáâ¨âì ¯à®¡¥«ìë¥ á¨¬¢®«ë
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BEGIN
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OnDelimiter
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WHILE
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>IN 1+!
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REPEAT
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;
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: RDROP POSTPONE R>DROP ; IMMEDIATE
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[THEN]
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: OnNotDelimiter_ ( C -- flag )
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DUP [CHAR] 0 U< IF DROP FALSE EXIT THEN
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DUP [CHAR] : U< IF DROP TRUE EXIT THEN
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DUP [CHAR] @ U< IF DROP FALSE EXIT THEN
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DUP [CHAR] [ U< IF DROP TRUE EXIT THEN
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DUP [CHAR] _ = IF DROP TRUE EXIT THEN
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DUP [CHAR] a U< IF DROP FALSE EXIT THEN
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DUP [CHAR] { U< IF DROP TRUE EXIT THEN
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DROP FALSE
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;
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: SkipWord_ ( -- ) \ ¯à®¯ãáâ¨âì term ᨬ¢®«ë
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BEGIN
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GetChar IF OnNotDelimiter_ THEN
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WHILE
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>IN 1+!
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REPEAT ;
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: ParseWord_ ( -- c-addr u )
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CharAddr >IN @
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SkipWord_
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>IN @ - NEGATE ;
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C" UPPER" FIND NIP 0=
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[IF]
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BASE @ HEX
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: UPC ( c -- c' )
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DUP [CHAR] Z U>
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IF DF AND
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THEN ;
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BASE !
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: UPPER ( ADDR LEN -- )
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0 ?DO COUNT UPC OVER 1- C! LOOP DROP ;
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[THEN]
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: IN>R POSTPONE >IN
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POSTPONE @
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POSTPONE >R ; IMMEDIATE
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: R>IN POSTPONE R>
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POSTPONE >IN
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POSTPONE ! ; IMMEDIATE
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: GetOp_BS ParseWord_ GetOp_STR PLACE GetOp_STR ;
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: non-term 1 GetOp_STR C! PeekChar GetOp_STR 1+ C! >IN 1+! GetOp_STR ;
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: TERM-STR CharAddr SkipWord_ CharAddr OVER -
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GetOp_STR PLACE GetOp_STR DUP COUNT UPPER ;
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\ types: 1 - non-term (comments, etc.)
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\ 2 - number
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\ 3 - name
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\ 4 - "-bracketed string
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\ 5 - '-bracketed string
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CREATE XXX 0 ,
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: (GetOp) ( --> string type )
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SkipDelimiters
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GetChar 0= IF DROP XXX FALSE EXIT THEN
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DUP [CHAR] 0 <
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IF DUP [CHAR] " =
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IF [CHAR] " GetOp_BS 4 EXIT
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THEN
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[CHAR] ' =
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IF [CHAR] ' GetOp_BS 5 EXIT
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THEN non-term 1 EXIT
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THEN
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DUP [CHAR] : <
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IF DROP TERM-STR 2 EXIT
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THEN
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OnNotDelimiter_
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IF TERM-STR 3 EXIT
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THEN non-term 1 ;
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: IFNOT POSTPONE 0=
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POSTPONE IF ; IMMEDIATE
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1000 ALLOT
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HERE CONSTANT LS0
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VARIABLE LSP
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LS0 LSP !
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: ADDNUMOBJECT ( name addr type --> )
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-11 LSP +!
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LSP @ C!
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11 LSP @ 1+ W!
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LSP @ 3 + !
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LSP @ 7 + ! ;
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: AddStrObject ( name addr type --> )
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ROT
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DUP C@ 1+ NEGATE LSP +!
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COUNT LSP @ PLACE \ addr type
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-7 LSP +!
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LSP @ C!
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LSP @ 7 + C@ 8 +
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LSP @ 1+ W!
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LSP @ 3 + ! ;
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0
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1 FIELD L_TYPE
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2 FIELD L_SIZE
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4 FIELD L_ADDR
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0 FIELD L_NAME
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DROP
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: FindStrObject ( name type --> addr true | false )
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LSP @ >R
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BEGIN R@ L_SIZE W@
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WHILE
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DUP R@ L_TYPE C@ =
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IF OVER R@ L_SIZE W@ 7 -
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R@ L_NAME R@ L_SIZE W@ 7 - COMPARE 0=
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IF 2DROP R> L_ADDR @ TRUE EXIT
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THEN
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THEN R@ L_SIZE W@ R> + >R
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REPEAT 2DROP RDROP FALSE ;
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CREATE NullString 0 ,
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: ConvertString ;
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: S= ( c-addr1 c-addr2 --> true | c-addr1 false )
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OVER COUNT ROT COUNT
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COMPARE
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IF FALSE
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ELSE DROP TRUE
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THEN ;
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: ?S= ( flag n R: >IN --> R: >IN | -->> n true )
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SWAP
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IF 2R> 2DROP TRUE EXIT
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THEN DROP
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;
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ALSO FORTH DEFINITIONS
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: VAL ( ADDR -- UD2 FLAG )
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0 0 ROT COUNT >NUMBER NIP 0= ;
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VARIABLE CUR-PAB
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HERE 0 , CUR-PAB !
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: ?PABLIC ( CFA -- FLAG )
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CUR-PAB @
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BEGIN 2DUP @ U<
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WHILE @
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REPEAT CELL+ @ = ;
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: PABLIC ( -- )
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HERE CUR-PAB @ , LAST @ NAME> , CUR-PAB ! ;
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: >L
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-4 LSP +!
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LSP @ ! ;
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: L>
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LSP @ @
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4 LSP +! ;
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: ERR_ TRUE ABORT" " ;
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C" 1-!" FIND NIP 0=
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[IF]
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: 1-! ( ADDR -- )
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DUP>R @ 1- R> ! ;
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[THEN]
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C" ON" FIND NIP 0=
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[IF]
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: ON ( ADDR -- )
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TRUE SWAP ! ;
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[THEN]
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C" ?PAIRS" FIND NIP 0=
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[IF]
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: ?PAIRS XOR ABORT" conditionals not paired" ;
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[THEN]
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\ : 'Alias ' Alias ;
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PREVIOUS DEFINITIONS
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