From: Tanaka Akira <akr@...17n.org>
Date: 2002-06-24T13:05:32+09:00
Subject: [ruby-dev:17558] Re: Ruby grammar

In article <1024887804.945188.6501.nullmailer@picachu.netlab.jp>,
  matz@ruby-lang.org (Yukihiro Matsumoto) writes:

> $B$=$N$D$b$j$G$9!#$?$@(B
> 
> |m1 a1, m2 a2, m3 a3, ..., mN aN {}
> 
> $B$N(BaN$B$N7A<0$K$h$C$F$O(B
> 
> |m1 a1, m2 a2, m3 a3, ..., (mN aN {})
> 
> $B$G$O$J$/!"(B
> 
> |m1 a1, m2 a2, m3 a3, ..., mN (aN {})
> 
> $B$H$J$j$=$&$J5$$,$7$^$9!#$D$^$j!"(B{} $B$O$b$C$H$b1&$N%a%=%C%I8F(B
> $B$S=P$7$H7k9g$9$k$@$1$G$J$/!"DL>o$J$i%m!<%+%kJQ?t$H$_$J$5$l$k(B
> $B$b$N$^$G%a%=%C%I8F$S=P$7$K2r<a$9$k6/EY(B($B!)(B)$B$,$"$j$^$9!#(B

  m m m m m m {}
$B$,(B
  m (m (m (m (m (m {})))))
$B$K$J$j!"(B
  m m m m m m do end
$B$,(B
  m (m (m (m (m m)))) do end
$B$K$J$k$H$$$&$3$H$G$9$M!#(B

> $B$?$V$s!"!V0z?t3g8L$r>JN,$7$?7A<0$G$O!"$+$C$3$G$/$/$i$J$$8B$j(B
> $BA4BN$G$R$H$D$7$+%V%m%C%/$rIUM?$G$-$J$$!W$H$$$&$N$,K>$s$G$$$k(B
> $BJ8K!$G$O$J$$$+$H!#!V$?$V$s!W$H$$$&$N$,>p$1$J$$$G$9$,!#(B

$B$U$`!#(B
  a 1 do end + b 2 do end
  a 1 {} + b 2 {}
  m(a 1 do end, b 2 do end)
  m(a 1 {}, b 2 {})
$B$N$h$&$J$b$N$O6X;_$J$o$1$G$9$M(B?

$B!V0z?t3g8L$r>JN,$7$?7A<0!W$K$O(B
  a {}
$B$N$h$&$K0z?t$,B8:_$7$J$$$b$N$b4^$^$l$^$9$+(B?

$B$"$H!"(B
  a 1 do end + 2
  m(a 1 do end, 2)
$B$H$$$&$h$&$J$N$N$O5v$9$o$1$G$9$+(B?

$B$7$+$7!"0LCV$OLd$o$:9b!9$R$H$D$H$$$&$N$OJ8L.<+M3J8K!$G$O=q$-$K$/$$N`$N(B
$B@)Ls$J$s$G$9$h$M$'!#4^$s$G$$$k$b$N$H$=$&$G$J$$$b$N$rI=8=$7$J$-$c$$$1$J(B
$B$$$s$G5,B'$,:GDc$G$bG\$K$U$/$l$k$7!#(B
-- 
[$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)