mirror of
https://github.com/forth-ev/VolksForth.git
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52 lines
3.3 KiB
Plaintext
52 lines
3.3 KiB
Plaintext
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0 \\ Undo for the VolksForth command line cas2013apr05
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1
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2 The tool extends the VolksForth "decode" function
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3 with an UNDO. If there was a typo in the previous line
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4 pressing the UNDO key will re-fetch the last entered line so
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5 that it can be edited
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6
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7 Published in VD 3/87 by Bernd Pennemann
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Screen 1 not modified
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0 \ Undo for Atari ST cas2013apr05
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1 Onlyforth
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3 | $6100 Constant #undo
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5 : undoSTdecode ( addr pos1 key -- addr pos2 )
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6 over 0= if
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7 #undo case? if at? >r >r
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8 over #tib @ dup span ! type
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9 r> r> at exit then then
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10 STdecode ;
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12 Input: keyboard STkey STkey? undoSTdecode STexpect ;
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14 keyboard save
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