42 lines
953 B
Forth
42 lines
953 B
Forth
VARIABLE wd 256 ALLOT
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: setwd ( uaddr)
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COUNT 1+ SWAP 1- SWAP wd SWAP CMOVE ;
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: _wd
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$" /sys/" setwd ; _wd
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: "/ [CHAR] / ;
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: strcat ( uaddr1 uaddr2 -- uaddr1+uaddr2)
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>R DUP COUNT ( ua1 a1 c1)
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>R R@ ( ua1 a1 c1)
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+ OVER R> R@ SWAP >R ( ua1 ea1 ua1 ua1)
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C@ R> + ( ua1 ea1 ua1 u+u2 )
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SWAP C! ( ua1 ea1 )
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R> COUNT ( ua1 ea1 a2 c2)
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>R
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SWAP R> CMOVE ;
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: add/ ( uaddr -- uaddr/)
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DUP DUP COUNT SWAP DROP + C@ "/ = IF ELSE $" /" strcat THEN ;
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: cut/ ( uaddr -- uaddr w/o slash)
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COUNT OVER SWAP + 1- ( ua1 lasta1)
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DUP C@ "/ = IF 1- THEN .S
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BEGIN 2DUP < WHILE 4 . DUP C@ "/ = IF OVER - OVER 1- C! 1- LEAVE ELSE 1- THEN
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REPEAT ;
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: t $" cat" $" dog" strcat COUNT TYPE ;
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: makepath ( path normalizer: uaddr1 uaddr2 -- uaddr )
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DUP 1+ C@ [CHAR] / = IF SWAP DROP ELSE DUP strcat THEN
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add/ ;
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: pwd ( print working directory: -- )
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CR wd COUNT TYPE ;
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: cd ( change directory)
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wd BL WORD makepath setwd ;
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