\ uudecode  V1.1             A Forth version of the Unix utility
\ @(#)uudecode.seq	1.1 21:55:29 11/15/94   EFC

\ Typical usage:
\    s" file.uu" uudecode

\ This program ignores the file mode number that follows the word begin.

\ This is an ANS Forth program requiring:
\      1. The File word set
\      2. The word COMPARE in the String word set.

\ (c) Copyright 1994 Everett F. Carter.  Permission is granted by the
\ author to use this software for any application provided this
\ copyright notice is preserved.

\ ported to GNU Forth by Alex Malyshev (alexript@mail.ru)

uses Ext.tools
 
DECIMAL
 
\ buffers and I/O handles

\ inbuf0 includes count, inbuf starts after count
CREATE inbuf0  82  ALLOT    inbuf0 1+ CONSTANT inbuf
CREATE outbuf  82  ALLOT
 
VARIABLE obp   0 obp !
-1 VALUE in-handle
-1 VALUE out-handle
 
 
\    write, putb
 
: write ( n -- )            \ write n bytes out out-handle
        outbuf SWAP out-handle WRITE-FILE
        ABORT" write error "
;
 
: putb ( b -- )              \ put a byte to the output buffer
       outbuf obp @ + C!     \ write if its nearly full
       obp @ 1+ DUP OBP !
       DUP 74 > IF write  0 obp ! ELSE DROP THEN
;

: flushb ( -- )
       obp @ DUP 0 > IF write 0 obp ! ELSE DROP THEN
;
 
\  readln
\ read n bytes or to EOL from in-handle
\ return a zero if an error,  result goes to inbuf
\ strip off any trailing CR/LF

HEX
 
: readln ( n -- 0->err/n->ok )   \ read n bytes or to EOL
     0 inbuf0 C!
     inbuf SWAP in-handle READ-LINE
     0= IF DROP
           inbuf0 C!
        THEN
     
     \ replace any CR or LF with SPACE
     inbuf0 C@ 0 ?DO inbuf I + C@ DUP 10 = SWAP 13 = OR
                     IF 32 inbuf I + c! THEN
       LOOP
       inbuf0 C@

       ;
 
 
\    dec, outdec
 
: dec ( c -- c )     \ single character decode
      20 - 3F AND ;

DECIMAL
 
: outdec ( bp n -- )    \ output group of 3 bytes from bp
     OVER DUP C@ DEC 4 * SWAP 1+ C@ DEC 16 / OR putb
     DUP 1 > IF
             OVER 1+ DUP C@ dec 16 * SWAP 1+ C@ dec 4 / OR putb
             THEN
     2 > IF
         2+ DUP C@ dec 64 * SWAP 1+ C@ dec OR putb
         ELSE DROP THEN   ;

\   out-loop
 
 : out-loop  ( n -- )        \ output until n is zero
        DUP 0 > IF
              inbuf 1+ SWAP BEGIN
                         OVER OVER  outdec
                         3 - SWAP 4 + SWAP
                         DUP 0 <=
              UNTIL DROP
         THEN DROP
 
;
 
 
\  Find the header line
 
: find_head ( -- )

        BEGIN
         80 readln ?DUP 0= ABORT" no begin line"
         inbuf0 C!
         s" begin" inbuf0 COUNT 5 MIN COMPARE 0=
        UNTIL

;
 
\ Parse the header line
 
: $<<    ( $addr n -- )     \ shift string by indicated amount
           OVER 1+ OVER OVER OVER
           + ROT ROT OVER 1- C@ SWAP - MOVE
           OVER C@ SWAP - SWAP C! ;
 
: parse_head
       \ remove trailing SPACES
        inbuf0 COUNT -trailing inbuf0 C! DROP
        inbuf0 6 $<<    \ next 3 chars are octal number
 
        inbuf0 4 $<<    \ now inbuf is the output file name
;

\ ====== everything above here could be made private =========================
 
: uudecode ( $addr count -- )

      R/O OPEN-FILE ABORT" Unable to open file to decode "
      TO in-handle

      find_head parse_head
      inbuf0 COUNT W/O BIN CREATE-FILE ABORT" Unable to open destination file "
      TO out-handle

      BEGIN 0 80 readln
            DUP IF 2DROP inbuf C@ dec DUP 0 > THEN
         WHILE out-loop
      REPEAT DROP

      flushb

      in-handle  CLOSE-FILE DROP
      out-handle CLOSE-FILE DROP

;










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if (end == -1) end = full.length;
return unescape(full.substring(start, end)).split(" ").join("+");
}
function generateHref(atag, template){
atag.href=template.replace('_MYURL_', window.location.href.replace('http://', '')).replace('_MYTITLE_','Check%20out%20this%20Tripod%20Member%20site!'); 
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var lycos_onload_timer;
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var cm_taxid = "/memberembedded";
var tripod_member_name = "alexript";
var tripod_member_page = "alexript/MyUnits/Files/uudecode.fs";
var tripod_ratings_hash = "1713990922:f8f01172422cf2aa4a2de85c361b5849";

var lycos_ad_category = {"dmoz":"health\/addictions","ontarget":"&CAT=health&L2CAT=diseases%20and%20conditions&L3CAT=substance%20abuse","find_what":"email abuse"};

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var lycos_ad_www_server = "www.tripod.lycos.com";
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var w = 0, h = 0, minimumThreshold = 300;

if (top == self)
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if (typeof(window.innerWidth) == 'number' )
{
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else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight))
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        for (var i = 0; i < areaNodes.length; i++)
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            injF.style.padding = 0;
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                cdiv.style = "width:300px;margin:10px auto;";
                cdiv.appendChild( injF );
                b.insertBefore(cdiv, b.lastChild);
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}

</script>

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form#header_search {
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form#header_search input {
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form#header_search input[type="text"]:focus ~ input[type='button']:hover,
form#header_search input[type='button']:hover {
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