P()#=>[]


#1

e$B>>Hx$H$$$$$^$9!#e(B
1.9e$B$G%a%=%C%Ie(Bpe$B$NJV$jCM$,$=$N0z?t$NCM$K$J$j$^$7$?$,!"e(B

rer = p
p rer # => []

rer = p()
p rer # => []

rer = p(()) # => nil
p rer # => nil

e$B0z?t$J$7$N;~e(B [ ] e$B$rJV$9$N$O0U?^$7$?5sF0$G$7$g$&$+!)e(B
nil e$B$+$J$!$H;W$C$F$$$?$N$G$9$,!#e(B

e$B4{=Pe(Bore$B=$@5:Q$$G$7$?$i$9$$^$;$s!#e(B
ruby 1.9.0 (2007-07-09 patchlevel 0) [i386-mswin32]


#2

e$B$J$+$@$G$9!#e(B

At Mon, 23 Jul 2007 19:59:17 +0900,
eklerni wrote in [ruby-dev:31285]:

e$B0z?t$J$7$N;~e(B [ ] e$B$rJV$9$N$O0U?^$7$?5sF0$G$7$g$&$+!)e(B
nil e$B$+$J$!$H;W$C$F$$$?$N$G$9$,!#e(B

rete$B$re(BQnile$B$G=i4|2=$7$F$$$k$3$H$+$i$9$k$H!"e(Bnile$B$K$9$k$D$b$j$@$C$?e(B
e$B$N$G$O$J$$$+$H;W$$$^$9!#e(B

Index: io.c

— io.c (revision 12839)
+++ io.c (working copy)
@@ -3992,5 +3992,5 @@ rb_f_p(int argc, VALUE *argv, VALUE self
ret = argv[0];
}

  • else {
  • else if (argc > 1) {
    ret = rb_ary_new4(argc, argv);
    }

#3

e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B

In message “Re: [ruby-dev:31288] Re: p()#=>[]”
on Tue, 24 Jul 2007 03:00:53 +0900, Nobuyoshi N.
removed_email_address@domain.invalid writes:

|At Mon, 23 Jul 2007 19:59:17 +0900,
|eklerni wrote in [ruby-dev:31285]:
|> e$B0z?t$J$7$N;~e(B [ ] e$B$rJV$9$N$O0U?^$7$?5sF0$G$7$g$&$+!)e(B
|> nil e$B$+$J$!$H;W$C$F$$$?$N$G$9$,!#e(B
|
|rete$B$re(BQnile$B$G=i4|2=$7$F$$$k$3$H$+$i$9$k$H!"e(Bnile$B$K$9$k$D$b$j$@$C$?e(B
|e$B$N$G$O$J$$$+$H;W$$$^$9!#e(B

e$B%3%_%C%H$7$F$/$@$5$$!#e(B


#4

e$B>>Hx$H$$$$$^$9!#e(B

|At Mon, 23 Jul 2007 19:59:17 +0900,
|eklerni wrote in [ruby-dev:31285]:
|> e$B0z?t$J$7$N;~e(B [ ] e$B$rJV$9$N$O0U?^$7$?5sF0$G$7$g$&$+!)e(B
|> nil e$B$+$J$!$H;W$C$F$$$?$N$G$9$,!#e(B
|
|rete$B$re(BQnile$B$G=i4|2=$7$F$$$k$3$H$+$i$9$k$H!"e(Bnile$B$K$9$k$D$b$j$@$C$?e(B
|e$B$N$G$O$J$$$+$H;W$$$^$9!#e(B

e$B%3%_%C%H$7$F$/$@$5$$!#e(B

e$BBP1~$"$j$,$H$&$4$6$$$^$9!#e(B


#5

e$B8=:$N5sF0$r$$F$_$^$7$?$i!"e(B
e$B0z?t$J$7$N;~$NI=<($9$kCM$HJV$9CM$,e(Bmain(self)e$B$K$J$C$F$$$^$9!#e(B

rer = p # => main
p rer # => main

e$B$^$?!“0z?t$”$j$N>l9g!"0z?t$rI>2A$7$?CM$G$O$J$/$=$l$rG[Ns2=$7$?$b$N$,JV$5e(B
e$B$l$F$$$^$9!#e(B

rer = p(:some) # => :some
p rer # => [:some]

e$BD4$Y$F$$$?$@$1$?$i9,$$$G$9!#e(B

ruby 1.9.0 (2007-08-18 patchlevel 0) [i386-mswin32_80]


#6

e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B

In message “Re: [ruby-dev:31606] Re: p()#=>[]”
on Wed, 22 Aug 2007 23:18:55 +0900, eklerni
removed_email_address@domain.invalid writes:

|e$B8=:$N5sF0$r$$F$_$^$7$?$i!"e(B
|e$B0z?t$J$7$N;~$NI=<($9$kCM$HJV$9CM$,e(Bmain(self)e$B$K$J$C$F$$$^$9!#e(B

e$B;d$N$H$3$m$HF0$-$,0c$&$h$&$G$9!#e(B

|rer = p # => main
|p rer # => main

|rer = p # => main
|p rer # => main

% ruby -ve ‘p(p())’
ruby 1.9.0 (2007-08-24 patchlevel 0) [i686-linux]
nil

|e$B$^$?!“0z?t$”$j$N>l9g!"0z?t$rI>2A$7$?CM$G$O$J$/$=$l$rG[Ns2=$7$?$b$N$,JV$5e(B
|e$B$l$F$$$^$9!#e(B
|
|rer = p(:some) # => :some
|p rer # => [:some]

% ruby -ve ‘p(p(:some))’
ruby 1.9.0 (2007-08-24 patchlevel 0) [i686-linux]
:some
:some

|e$BD4$Y$F$$$?$@$1$?$i9,$$$G$9!#e(B
|
|ruby 1.9.0 (2007-08-18 patchlevel 0) [i386-mswin32_80]

e$B$^$:!"$*<j85$Ne(BRubye$B$r?7$7$/$7$F$_$k$N$O$I$&$G$7$g$&!#e(B


#7

From:eklerni

e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B

e$B$^$:!"$*<j85$Ne(BRubye$B$r?7$7$/$7$F$_$k$N$O$I$&$G$7$g$&!#e(B

e$B:G?7HG$G$OLdBj$"$j$^$;$s$G$7$?!#e(B

e$BJs9pA0$K?7$7$/$7$?$D$b$j$G$J$C$F$J$+$C$?$h$&$G$9!#$*<j?t$+$1$F?=$7Lu$J$$!#e(B