From: Tanaka Akira <akr@...17n.org>
Date: 2002-11-22T03:29:55+09:00
Subject: [ruby-dev:18890] internal/external iterator (Re:  Re: Enumerable#zip)

In article <1037884596.418916.10540.nullmailer@picachu.netlab.jp>,
  matz@ruby-lang.org (Yukihiro Matsumoto) writes:

> |$BFbIt%$%F%l!<%?$H8F$Y$k$+$I$&$+$O!"2?$r!V%$%F%l!<%?!W$H8+$k$+$K$h(B
> |$B$k$s$8$c$J$$$G$7$g$&$+(B?

GoF $BK\$N$"$NJ8L.$K$*$1$k!V%$%F%l!<%?!W$H$$$&$N$O$O30It%$%F%l!<%?$N>l9g(B
$B$O(B Iterator $B%/%i%9(B($B$J$$$7$=$l0J2<$N%/%i%93,AX(B)$B!"FbIt%$%F%l!<%?$N>l9g$O(B
$B%V%m%C%/$d%/%m!<%8%c$r<u$1<h$k%a%=%C%I$r;X$7$F$$$k$h$&$K;W$($^$9!#(B

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$B$k$N$G$7$g$&!#(B

> $B$&!<$s!"8F$S=P$7B&$+$i9M$($k$H(Bfor$BJ8$N$h$&$J9bEY$JCj>]2=$,$"(B
> $B$l$PFbIt%$%F%l!<%?$H8F$Y$k$H9M$($F$$$?$N$G$9$,!"9M$($F$_$l$P(B
> $B$=$l$C$F%^%/%m$G30It%$%F%l!<%?$r1#JC$7$F$b<B8=$G$-$k$o$1$G!"(B
> $B%$%F%l!<%?$,7+$jJV$7BP>]$N%/%i%9$HJ,N%$7$F$$$k$+$I$&$+$GFbIt(B
> $B30It$r6hJL$9$k$H$$$&J,N`$O$I$&$G$7$g$&!#(B

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> $B$3$N>l9g!"(BRuby$B$N%$%F%l!<%?$OJ,N%$7$F$$$J$$$N$GFbIt%$%F%l!<%?!"(B
> C++$B$N$OJL$N%/%i%9$K$J$k$N$G30It%$%F%l!<%?!"(BPython$B$N(Bgenerator
> $B$d(BC#$B$N%$%F%l!<%?$OFbIt%$%F%l!<%?$N$U$j$r$7$?30It%$%F%l!<%?$H(B
> $B$$$&$3$H$K$J$k$H$$$&$N$O$I$&$G$7$g$&!)(B

generator.rb $B$O30It%$%F%l!<%?$N$U$j$r$7$?FbIt%$%F%l!<%?$r<B8=$9$k(B?

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foo $B$H(B bar $B$KCV$-49$($F$b$$$$$H$$$&$+!"$I$3$,$I$&FbIt$J$s$G$9$+$H?R$M(B
$B$?$/$J$k$H$$$&$+!#(B

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$B$$$s$G$O$J$$$+$H$$$&$o$1$G$9!#$^$!!"$I$&L>IU$1$?$i$$$$$+$OLdBj$G$9$,(B...
-- 
[$BEDCf(B $BE/(B][$B$?$J$+(B $B$"$-$i(B][Tanaka Akira]
$B!V$U$($m(B! $B$o$+$a$A$c$s:n@o$G$9$(C"=$B!W(B(Little Worker, $B7KM7@84](B)