2020-10-28 18:06:58 -04:00
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( handle backspace: go back one char in IN>, if possible, then
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emit BS + SPC + BS )
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: _bs
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( already at IN( ? )
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IN> @ IN( = IF EXIT THEN
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IN> @ 1- IN> !
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BS SPC BS
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;
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( del is same as backspace )
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: BS? DUP 0x7f = SWAP 0x8 = OR ;
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SYSVARS 0x55 + :** KEY
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( cont.: read one char into input buffer and returns whether we
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should continue, that is, whether CR was not met. )
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