--- match(str)

    MatchData ֥Ȥ֤ơself =~ str 
    ƱǤޥåʤä nil ֤ޤ

    ɽ˥ޥåʬʸɬפʾˡ

      bar = /foo(.*)baz/.match("foobarbaz").to_a[1]

      foo, bar, baz = /(foo)(bar)(baz)/.match("foobarbaz").to_a.indexes(1,2,3)

    Τ褦˻ѤǤޤ(to_a ϡޥå˼ԤθƤޤ)

    ruby 1.8 feature:
    1.8 ¿ε§ǤϱդǤʤĤΥ֥Ȥ to_a 
    ᥽åɤľ硢դ * դ뤳Ȥ to_a η̤ѤǤ
    ޤĤޤꡢ嵭ϰʲΤ褦˽񤯤ȤǤޤ(Ǥ 
    `_' ϡ$& ΤƤ뤿Ŭѿ
    ̾)

        _, foo, bar, baz = */(foo)(bar)(baz)/.match("foobarbaz")
        p [foo, bar, baz]

        # => ["foo", "bar", "baz"]

