From: Tanaka Akira <akr@...17n.org>
Date: 2000-11-12T13:27:42+09:00
Subject: [ruby-dev:11484] Re: class Character (was: Ruby I18N)

In article <E13ubwk-0004If-00@ev.netlab.zetabits.co.jp>,
  matz@zetabits.com (Yukihiro Matsumoto) writes:

>   (c) $B8zN($NNI$$J}K!$,$"$k$+$b(B or $B8zN(0-$/$F$b4X78$J$$$+$b(B
> 
>       Flyweight pattern$B$N$h$&$JJ}K!$r;H$($P!"8zN($O$b$&$A$g$C(B
>       $B$H%^%7$K$J$k$+$b!#$"$k$$$OJ8;z$=$N$b$N$r07$&5!2q$O<B$O(B
>       $B$"$s$^$jB?$/$J$/$F8zN($,A4BN$r:81&$9$k$3$H$OL5$$$+$b$7(B
>       $B$l$J$$$H$b9M$($F$$$^$9!#(B

$B$R$H$D;W$$$D$$$?8zN(2=$O!"$R$H$D$NJ8;zNsCf$NJ8;z$G$OJ8;z%/%i%9$O0lDj$J(B
$B$N$G!"(Bmethod dispatch $B$r??LLL\$K$d$i$J$/$F$b$9$`>l9g$b$"$k$+$bCN$l$^$;(B
$B$s$M!#(BC $B$+$i0l$D$NJ8;zNsCf$NJ8;z$K4X$7$FO"B3$7$F8F$S=P$9>l9g$NOC$G$9$,!#(B

$B$"$HJ8;z%*%V%8%'%/%H$N(B allocation $B$rHr$1$k$J$i!"$+$J$j$I$3$m$G$O$J$/Mp(B
$BK=$G$9$,!"(Bself $B$K%3!<%I%]%$%s%H$N(B Fixnum $B$r(B bind $B$7$?$&$($G!"J8;z%/%i(B
$B%9$N(B method $B$r8F$S=P$7$F$b$$$$$+$b$7$l$J$$$G$9$M!#(B($BL5M}$+$b(B)

$B$"$H!"8_49@-$H8zN($NN>LL$+$i!"(BString::Byte::Character $B$r(B Fixnum $B$N(B
$BJLL>$K$9$k$N$O$I$&$@$m$&$+!"$H;W$C$F$$$^$9!#(B

>   $B$J$K$,J8;z$+$H$$$&9g0U$,$H$l$=$&$K$J$$(B
> 
> $B$+$D(B
> 
>   $B$^$D$b$H(B(or Ruby)$B$,!V$3$l$,J8;z$@!W$HDs6!$G$-$k8+<1$,$J$$(B
> 
> $B$H$$$&$3$H$K4T85$5$l$^$9!#MW$9$k$K!V$"$k6ILL(B($B%"%W%j%1!<%7%g(B
> $B%s(B)$B$K4r$7$$J8;z%/%i%9!W$ODj5A$G$-$F$b!"!V$I$3$G$b4r$7$$J8;z(B
> $B%/%i%9!W$ODj5A$G$-$J$$$@$m$&$H$$$&Ha4QE*$JM=A[$G$9!#9b66$5$s(B
> $B$,=R$Y$F$*$i$l$k!"(BCode Unit$B$rJ8;z$H$9$k$+!"9g@.$5$l$?$b$N$r(B
> $BJ8;z$H$9$k$+!"$H$$$&$3$H$R$H$D$H$C$F$b!";d$K$OE,@Z$JH=CG$,$G(B
> $B$-$=$&$K$"$j$^$;$s!#(B

$B$3$l$K$O$J$s$i$+$N3d$j@Z$j$,I,MW$G$9!#(B

$BM%=@ITCG$9$.$k$N$OAa$9$.$k7hCG$HF1DxEY$K$R$I$$L\$K9g$&$3$H$,B?$$$N$G!"(B
$BCY$9$.$J$$;~4|$K$=$l$J$j$J<BAu$r$7$?$[$&$,$^$7$G$9!#(B

> $B$3$l$,!V$I$3$G$b4r$7$$J8;zNs%/%i%9!W$H$7$F$N(BString$B$rDs6!$7$F(B
> $B$$$k$3$H$H$NBg$-$J0c$$$G$9!#(B
> 
> $B$h$C$F!":#$N;d$N5$;}$A$H$7$F$O(BRuby$BI8=`$NJ8;z%/%i%9$ODs6!$;$:!"(B
> $B8D!9$N?M$,<+J,$J$j$NDj5A$GF3F~$9$k$N$KG$$;$h$&$+$J$"$H9M$($F(B
> $B$$$^$9!#(B

$B$?$H$($P!"9g@.$5$l$?$b$N$rJ8;z$H$9$k$h$&$JJ8;z%/%i%9$rF3F~2DG=$K$9$k$s(B
$B$G$7$g$&$+(B? $B$=$l$O$H$F$b$H$F$bAG@2$i$7$$$G$9$M!#(B

$B$3$l$O!"C<E*$K$$$($P!V$I$3$^$G3P8g$7$F$k$s$@$m$&(B?$B!W$H$$$&5?Ld$G$9!#J8(B
$B;zNs$K4X$9$k2>Dj$r!V$I$3$^$G!W<N$F$k$D$b$j$G$7$g$&$+!"$H$$$C$F$b$+$^$$(B
$B$^$;$s!#$^$?!"8+<1$N$J$5$rO*Dh(B/$B6/@)$9$k$h$&$J<BAu$K$J$k$N$G$O$J$$$+$H(B
$B$$$&$*$=$l!"$H$b$$$($^$9!#(B

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$B$7$+$KB8:_$7$^$9!#(B

Unix $B$J%U%!%$%k(B/$BI8=`=PNO$K=P$9I,MW$,$"$l$P%P%$%HNs$X$NJQ49%$%s%?!<%U%'!<(B
$B%9$rDj5A$7!"@55,I=8=$H$N>H9g$r$9$k$J$i%"%k%U%!%Y%C%H(B $B&2(B $B$NDj5A$rM?$($?(B
$B>e$G(B $B&2(B $B$NJB$S$X$NJQ49%$%s%?!<%U%'!<%9$rDj5A$7!"(B...

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$B$DDj5A$7$F$$$/$H$$$&J}K!$G$9!#$?$V$sJ8;z%/%i%9$r;H$o$J$$$G%$%s%?!<%U%'!<(B
$B%9$rDj5A$7$F$$$/$3$H$b2DG=$G$7$g$&!#(BMix-in $B$G$=$&$$$&%$%s%?!<%U%'!<%9(B
$B$N<BAu$r:.$<$F$$$/$3$H$K$h$C$F<+M3$KJ8;zNs%/%i%9$r:n$C$F$$$1$k!"$H$$$&(B
$B$N$b(B Ruby $B$i$7$/$F$$$$$+$b$7$l$^$;$s!#(B

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$B$9$k$H$$$&8+<1$H3P8g$,I,MW$G$9!#$D$$$G$K$$$($P!"$9$G$K(B String $B$K$$$m$$(B
$B$m$J%$%s%?!<%U%'!<%9$,B8:_$7!"$=$l$H8_49@-$,$"$k$h$&$KDj5A$9$k$N$O$+$J(B
$B$jLq2p$+$b$7$l$^$;$s!#(B

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$B$&!#J8;z$N$3$H$J$s$+5$$K$7$?$/$J$$?M$K$H$C$F$O0[$J$kJ8;zNs$+$i=P$F$-$?(B
$B0[$J$k0UL#$NHV9f$K:$OG$7!"J8;z$r$$$8$/$j$?$$?M$K$H$C$F$O@)8B$,B?$9$.$F(B
$BA4A34r$7$/$J$$!"$H!#(B

$B$G!"$I$3$^$G3P8g$7$F$^$9(B?
-- 
[$BEDCf(B $BE/(B][$B$?$J$+(B $B$"$-$i(B][Tanaka Akira]
$B!V$/$C$@$i$J$$%3%HJ9$$$A$c$C$?$M!<$(C"=(B $B$4$C$a!<$s$(C"=$B!W(B
  ($BKbK!;H$$M\@.@lLg(B $B%^%8%C%/%9%?!<3X1!(B 2, $BFn_7%_%E%-(B)