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|    Message 116,865 of 117,927    |
|    dxf to dxf    |
|    Re: Reverse SCAN SPLIT    |
|    10 Oct 24 17:00:43    |
      From: dxforth@gmail.com              On 7/10/2024 7:52 pm, dxf wrote:       > Earlier I mentioned scanning in reverse. Here's an implementation.       >       > [undefined] dxforth [if]       > : \CHAR ( a u -- a2 u2 c ) 1- 2dup + c@ ;       > [then]       >       > \ As for SCAN but scan from end       > : SCAN< ( a u c -- a2 u2 | a 0 )       > >r over swap begin dup while \char r@ = until 1+ then       > rot drop rdrop ;              Cleaned-up version:              : SCAN< ( a u c -- a2 u2 | a 0 )        >r begin dup while \char r@ = until 1+ then r> drop ;              > \ As for SPLIT but scan from end. Latter string is topmost.       > : SPLIT< ( a u c -- a2 u2 a3 u3 )       > >r 2dup r> scan< 2swap 2 pick /string ;              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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