forked from KolibriOS/kolibrios
76 lines
2.0 KiB
Forth
76 lines
2.0 KiB
Forth
\ $Id: zstring.f,v 1.1 2003/01/18 09:02:11 anfilat Exp $
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\ <20>ã«ì-áâப¨. ’¥å®«®£¨ï ¢§ïâ ¨§ ~yz\common.f
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\ Š®¯¨àã¥â áâபã addr u ¯® ¤à¥áã z. ‚ ª®¥æ áâப¨ § ¯¨áë¢ ¥â 0
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: CZMOVE ( a # z --) 2DUP + >R SWAP CMOVE R> 0 SWAP C! ;
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: ALITERAL R> COUNT OVER + 1+ >R ;
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\ VOCABULARY ZStrSupport
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\ GET-CURRENT ALSO ZStrSupport DEFINITIONS
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USER toadr USER fromadr USER counter
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: zchar ( --c/0) counter @ 1 <
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IF 0 ELSE -1 counter +! fromadr @ C@ fromadr 1+! THEN ;
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: unchar counter 1+! -1 fromadr +! ;
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: c> ( c--) toadr @ C! toadr 1+! ;
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: escape ( c--c )
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DUP [CHAR] n = IF DROP 10 ELSE
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DUP [CHAR] r = IF DROP 13 ELSE
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DUP [CHAR] t = IF DROP 9 ELSE
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DUP [CHAR] b = IF DROP 8 ELSE
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DUP [CHAR] q = IF DROP [CHAR] " ELSE
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DUP [ CHAR 0 1- ] LITERAL OVER < SWAP [ CHAR 9 1+ ] LITERAL < AND IF
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[CHAR] 0 -
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BEGIN ( n) zchar DUP
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[ CHAR 0 1- ] LITERAL OVER < SWAP [ CHAR 9 1+ ] LITERAL < AND
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WHILE
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( n c) [CHAR] 0 - SWAP 10 * +
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REPEAT
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0<> IF unchar THEN
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THEN
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THEN
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THEN
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THEN
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THEN
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THEN
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;
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: ESC-CZMOVE ( a # to --)
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toadr ! counter ! fromadr !
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BEGIN
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zchar
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DUP [CHAR] \ = IF DROP zchar escape THEN
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DUP c> 0= UNTIL ;
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\ SET-CURRENT
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: Z\LITERAL ( addr u -- \ a) \ ¢ ०¨¬¥ ¨â¥à¯à¥â 樨 ¢®§¢à é ¥â ¤à¥á
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\ ¡ãä¥à ¢ ¤¨ ¬¨ç¥áª®© ¯ ¬ïâ¨. <20>ãä¥à ¦¥« â¥«ì® ®á¢®¡®¤¨âì
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STATE @ IF
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POSTPONE ALITERAL
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HERE 1+ DUP >R ESC-CZMOVE
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R@ ASCIIZ> NIP 2+ DUP ALLOT 2- R> 1- C!
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ELSE
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DUP 1+ ALLOCATE THROW DUP >R ESC-CZMOVE R>
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THEN
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; IMMEDIATE
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: ZLITERAL ( addr u -- \ a)
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STATE @ IF
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POSTPONE ALITERAL
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DUP C,
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HERE SWAP DUP ALLOT MOVE 0 C,
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ELSE
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DUP 1+ ALLOCATE THROW DUP >R CZMOVE R>
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THEN
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; IMMEDIATE
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\ ‘®§¤ ¥â áâபã, ®ª 稢 îéãîáï ã«¥¬
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: Z" ( -->") [CHAR] " PARSE [COMPILE] ZLITERAL ; IMMEDIATE
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\ ‘®§¤ ¥â 0-áâபã, ¯à¨ í⮬ ¯à¥®¡à §ã¥â ¥¥ ¯® C-¯à ¢¨« ¬.
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: Z\" ( -->") [CHAR] " PARSE [COMPILE] Z\LITERAL ; IMMEDIATE
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\ PREVIOUS
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