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Added f.s
Speeded up history backward search
Fixed Bug in >float (1e is a float, "   <float>   " is, too)
Added vt100 cursor key support (vt100key.fs)

    1: \ MS-DOS key interpreter                               17oct94py
    2: 
    3: Create translate $100 allot
    4: translate $100 erase
    5: 
    6: : trans:  char translate + c! ;
    7: 
    8: : vt100-decode ( max span addr pos1 -- max span addr pos2 flag )
    9:   key '[ = IF    key translate + c@ dup IF  decode  THEN
   10:            ELSE  0  THEN ;
   11: 
   12: ctrl B trans: D
   13: ctrl F trans: C
   14: ctrl P trans: A
   15: ctrl N trans: B
   16: 
   17: ' vt100-decode  ctrlkeys $1B cells + !