Non-locale filename encoding

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[email protected]@%$G$9!#e(B

Tanaka A. wrote:

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e$B$D$^$k$H$3$m!"Nc30$,=P$?;~$N=hM}[email protected]$+e(B

In article [email protected],
“NARUSE, Yui” [email protected] writes:

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% mkdir /tmp/xyz
% cd /tmp/xyz
% ruby -e ‘open("\x91\x92\x93\x94", “w”)’
% ls
???

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% ruby -e ’
Dir.open(".") {|d|
while n = d.read
p [File.size(n), n]
end
}’
[4096, “.”]
[45056, “…”]
[0, “\x91\x92\x93\x94”]

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Ruby e$B$K$O$=$N$?$a$N5!9=$,F~$C$F$$$J$$$N$G$I$&;[email protected](B
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% ./ruby -e ’
Dir.open(".", :external_encoding=>“utf-16le”,
:internal_encoding=>“utf-8”) {|d|
while n = d.read
p [File.size(n), n]
end
}’
-e:3:in read': invalid byte sequence (RuntimeError) from -e:3:inblock in ’
from -e:2:in open' from -e:2:in

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e$BMW$,M-$j$^$9!#$=$9$k$H<!$N$h$&$K$J$j$^$9!#e(B

% ./ruby -e ’
opt = /windows/ =~ RUBY_PLATFORM ? {:external_encoding=>“utf-16le”,
:internal_encoding=>“utf-8”} : {}
Dir.open(".", opt) {|d|
while n = d.read
p [File.size(n), n]
end
}’

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:native_filename=>true e$B$H$9$k$H!"0J2<$N$h$&$K=q$1$^$9!#e(B

% ruby -e ’
Dir.open(".", :native_filename=>true) {|d|
while n = d.read
p [File.size(n), n]
end
}’

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% ruby -e ’
Dir.open(".", :native_filename=>true) {|d|
while n = d.read
p [File.size(n), n.encode(Encoding.locale_charmap)]
end
}’

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e$B$=$N0lJ}$G%U%!%$%k%7%9%F%`$N%(%s%3!<%G%#%s%0$,%;%C%H$5$l$^$9!#e(B
e$B$3$Ne(B string e$B$r07$&e(B force_encoding
e$B$9$kI,MW$,$”$k$3$H$r7y$$$^$7$?!#e(B

file e$B$Ne(B open e$B$N>l9g!"e(B
UTF-8 e$B%m%1!<%k$K$Fe(B Shift_JIS e$B$N%F%-%9%H$rFI$`>l9g$K!"e(B
open(“sjis.txt”){|f| puts f.read.force_encoding(“UTF-8”) }
e$B$H$9$k$N$G$O$J$/!“e(B
open(“sjis.txt”, “r:sjis”){|f| puts f.read }
e$B$H$7$?J}$,%9%^!<%H$J$N$G$9$,!”$3$l$HF1MM$Ke(B

Shift_JIS e$B%m%1!<%k$K$Fe(B UTF-8 e$B$J%U%!%$%k%7%9%F%`$N>l9g!“e(B
opendir(”."){|dir| puts dir.read.force_encoding(“UTF-8”) }
e$B$h$j$be(B
opendir(".", :external_encoding=>“UTF-8”){|dir| puts dir.read }
e$B$H$7$?J}$,%9%^!<%H$G$"$m$&$H9M$($^$7$?!#e(B

e$B$^$!!"EDCf$5$s$N;XE&$G5$IU$$$?$N$G$9$,!"e(B
filesystem e$B$H0[$J$ke(B encoding e$B$r;}$C$F$$$k$,@5$7$$e(Bpath
e$B$Ne(B string e$B$r!"e(B
e$BB>$Ne(B FS e$B7O$Ne(B API [email protected]>l9g$OG:$^$7$/!"e(B
e$B0z?t$Ne(B string e$B$re(B filesystem encoding e$B$K<+F0JQ49!“e(B
e$B$^$?$Oe(B filesystem encoding
e$B$H0[$J$k>l9g$ONc30!”$J$s$F$3$H$r$9$k$H!"e(B
Unix e$B7O$G$O$3$N%1!<%9$GHa$7$$$3$H$K$J$j$^$9!#e(B

e$BK\Ev$Oe(B dir e$B$G$J$/!"$=$Ne(B filesystem e$B$Ke(B
external encoding e$B$r%;%C%[email protected]$m$&$J!#e(B

e$B$^$!!"$3$l$K4X$7$F$O$3$N<j$N<+F0JQ49$rD|$a$l$P$$$$$N$G$9$,!#e(B

Tanaka A. wrote:

Windows e$B$G$Oe(B UTF-8 e$B$J$b$N$rJV$9%*%W%7%g%s$r2>$Ke(B
:native_filename=>true e$B$H$9$k$H!"0J2<$N$h$&$K=q$1$^$9!#e(B

% ruby -e ’
Dir.open(".", :native_filename=>true) {|d|
while n = d.read
p [File.size(n), n]
end
}’

e$B$d$C$HEDCf$5$s$N0U?^[email protected]$,M}2r$G$-$^$7$?!#e(B
e$B$4;XE&$N2]Bj$O6D$kDL$j$G!"3N$+$K2r7h:v$O!"e(B
e$B!VL5JQ49$N%Q%9$K3NEY$N9b$$%(%s%3!<%G%#%s%0$r$D$1$F$rJV$9e(B API
e$B$rMQ0U$9$k!We(B
e$B$,%Y%9%H$G$7$g$&!#e(B

e$B$3$N$h$&$K!“7k6I!”%U%!%$%kL>$r3N<B$K07$&$N$KI,MW$J5!9=$O!"3Ne(B
e$B<B$K%U%!%$%k$rF1Dj$G$-$k%U%!%$%kL>[email protected]$k$3$H$G!"J8;z%3!<%I$Ne(B
e$BJQ49$O<YKb$G$9!#e(B

e$BEDCf$5$s$NG’<1$G$O!“e(B:external_encoding/:internal_encoding
e$B$O!“e(B
e$B%U%!%$%k%Q%9$NJQ49$N$?$a$N5!9=$G$”$k!”$H$J$C$F$$$k$h$&$K;W$$$^$9!#e(B

e$B$o$?$7$NG’<1$G$O0J2<$NDL$j$K$J$C$F$$$^$9!#e(B
:external_encoding :
e$B%U%!%$%k%7%9%F%$N%(%s%3!<%G%#%s%0$r6/@)E*$K;XDj$9$k5!9=e(B :internal_encoding : e$B<+F0JQ49$N$?$a$N5!9=e(B e$B$J$N$G!"$3$A$i$G!"e(B :external_encoding : e$B%7%9%F%%M%$%F%#%V$N%(%s%3!<%G%#%s%0$r;XDje(B
(e$B8=:_$O$J$$e(B)
:internal_encoding : e$B<+F0JQ49$5$;$J$$e(B
e$B$H;XDj$9$l$P!"e(B
e$B!VL5JQ49$N%Q%9$K3NEY$N9b$$%(%s%3!<%G%#%s%0$r$D$1$F$rJV$9e(B API
e$B$rMQ0U$9$k!We(B
e$B$O0l1~<B8=$G$-$^$9!#e(B

e$B$A$J$_$K!"e(BWindows e$B%U%!%$%k%Q%9$re(B FS
e$B$KEO$7$?>l9g$NF0:n$NM=Dj$r=q$$$F$*$/$H!"e(B
US-ASCIIe$B!"e(BASCII-8BIT e$B5Z$Se(B Unicode e$B7Oe(B -> UTF-16LE
e$B$K$7$Fe(B Unicode API e$B$KEO$9e(B
locale -> ANSI API e$B$KEO$9e(B or UTF-16LE e$B$KJQ49$7$F$+$ie(B Unicode
API e$B$KEO$9e(B
e$B$=$l0J30e(B -> UTF-16LEe$B$K<+F0JQ49$7$Fe(B Unicode API or e$BNc30e(B
or e$B$=$N$^$^e(B ANSI

e$BLdBj$O$=$l0J30$G!“e(B
e$B<+F0JQ49$9$k$He(B Microsoft CodePage
e$B0J30$+$iJQ49$9$k$H%^%C%T%s%0$N0c$$$G$O$^[email protected]$,e(B
e$B9b$$$N$Ge(B MSCP e$B$G$J$$>l9g$+!”$^$?$Oe(B locale
e$B0J30$G$ONc30$r=P$7$?$$$N$G$9$,!"e(B
e$B$=$l$r$d$k$He(B Unix
e$B$N>l9g$GHa$7$$;W$$$r$9$k$N$GG:$^$7$/;W$C$F$$$k$H$3$m$G$9!#e(B

In article [email protected],
Tanaka A. [email protected] writes:

Shift_JIS e$B%m%1!<%k$K$Fe(B UTF-8 e$B$J%U%!%$%k%7%9%F%`$N>l9g!“e(B
opendir(”."){|dir| puts dir.read.force_encoding(“UTF-8”) }
e$B$h$j$be(B
opendir(".", :external_encoding=>“UTF-8”){|dir| puts dir.read }
e$B$H$7$?J}$,%9%^!<%H$G$"$m$&$H9M$($^$7$?!#e(B

e$B>e5-$NNc$G$Oe(B puts e$B$7$+$7$F$$$^$;$s!#e(B
e$B$=$N$h$&$KI=<([email protected]$1$G$"$l$P;HMQ$G$-$^$9$,!"e(Bopen e$B$J$I$NA`e(B
e$B:n$O$G$-$J$$$o$1$G$9$h$M!#e(B

e$B$*$C$H!"e(B:external_encoding [email protected]$1$N;XDj$J$i%P%$%HNs$OJQ49$5$le(B
e$B$J$$$N$Ge(B open e$B$H$+$b$G$-$^$9$M!#e(B

:internal_encoding e$B$r;[email protected]$a$G$9$,!#e(B

Dir e$B$Ne(B :external_encoding e$B$He(B :internal_encoding e$B$O:o=|$7$^$;e(B
e$B$s$+e(B?

:internal_encoding e$B$K$D$$$F$O!":o=|$7$?$[$&$,$$$$$H$$$&$N$Oe(B
e$BJQ$o$j$^$;$s!#e(B

e$B$H$3$m$G!"e(BWindows e$B$Ge(B :external_encoding e$B$Ke(B Unicode
e$B$G$be(B
locale e$B$G$b$J$$e(B encoding e$B$r;XDj$7$?$i$I$&$J$k$s$G$9$,e(B?

In article [email protected],
“NARUSE, Yui” [email protected] writes:

e$BA[Dj$H$7$F$O!"e(BUnix e$B7O$G%U%!%$%k%7%9%F%$N%(%s%3!<%G%#%s%0$,e(B locale e$B$H0[$J$k>l9g$G$9!#e(B e$B$3$N>l9g!"e(BUnix e$B7O$J$N$G%U%!%$%k%7%9%F%>e$N%Q%9J8;zNs$OJQ49$5$l$:!“e(B
e$B$=$N0lJ}$G%U%!%$%k%7%9%F%`$N%(%s%3!<%G%#%s%0$,%;%C%H$5$l$^$9!#e(B
e$B$3$Ne(B string e$B$r07$&e(B force_encoding e$B$9$kI,MW$,$”$k$3$H$r7y$$$^$7$?!#e(B

e$B$J$k$[$I!#e(B

opendir(".", :external_encoding=>“UTF-8”){|dir| puts dir.read }
e$B$H$7$?J}$,%9%^!<%H$G$"$m$&$H9M$($^$7$?!#e(B

e$B>e5-$NNc$G$Oe(B puts e$B$7$+$7$F$$$^$;$s!#e(B
e$B$=$N$h$&$KI=<([email protected]$1$G$"$l$P;HMQ$G$-$^$9$,!"e(Bopen e$B$J$I$NA`e(B
e$B:n$O$G$-$J$$$o$1$G$9$h$M!#e(B

e$BI=<($7$+9T$o$J$$%"%W%j%1!<%7%g%s$C$F$I$N$/$i$$$"$k$s$G$7$g$&$+e(B?

Dir e$B$rI=<(@lMQ$K$7$F$7$^$&%*%W%7%g%s$O!"E,@Z$H$O;W$($^$;$s!#e(B

Dir e$B$Ne(B :external_encoding e$B$He(B :internal_encoding
e$B$O:o=|$7$^$;e(B
e$B$s$+e(B?

e$B$^$!!"EDCf$5$s$N;XE&$G5$IU$$$?$N$G$9$,!"e(B
filesystem e$B$H0[$J$ke(B encoding e$B$r;}$C$F$$$k$,@5$7$$e(Bpath e$B$Ne(B string e$B$r!"e(B
e$BB>$Ne(B FS e$B7O$Ne(B API [email protected]>l9g$OG:$^$7$/!"e(B
e$B0z?t$Ne(B string e$B$re(B filesystem encoding e$B$K<+F0JQ49!“e(B
e$B$^$?$Oe(B filesystem encoding e$B$H0[$J$k>l9g$ONc30!”$J$s$F$3$H$r$9$k$H!"e(B
Unix e$B7O$G$O$3$N%1!<%9$GHa$7$$$3$H$K$J$j$^$9!#e(B

Unix e$B$N%U%!%$%kL>$OJ8;zNs$G$J$/%P%$%HNs$J$N$G!"J8;[email protected]$H;W$Ce(B
e$B$F07$($PL5MQ$KLdBj$r8F$S9~$_$^$9$M!#e(B

e$BK\Ev$Oe(B dir e$B$G$J$/!"$=$Ne(B filesystem e$B$Ke(B
external encoding e$B$r%;%C%[email protected]$m$&$J!#e(B

e$B$3$l$O0U?^$,$h$/$o$+$j$^$;$s!#e(B

e$B$d$C$HEDCf$5$s$N0U?^[email protected]$,M}2r$G$-$^$7$?!#e(B
e$B$4;XE&$N2]Bj$O6D$kDL$j$G!"3N$+$K2r7h:v$O!"e(B
e$B!VL5JQ49$N%Q%9$K3NEY$N9b$$%(%s%3!<%G%#%s%0$r$D$1$F$rJV$9e(B API e$B$rMQ0U$9$k!We(B
e$B$,%Y%9%H$G$7$g$&!#e(B

e$B$($’!#e(B

e$BEDCf$5$s$NG’<1$G$O!“e(B:external_encoding/:internal_encoding e$B$O!“e(B
e$B%U%!%$%k%Q%9$NJQ49$N$?$a$N5!9=$G$”$k!”$H$J$C$F$$$k$h$&$K;W$$$^$9!#e(B

e$B$O$$!#8=;[email protected]$N%3!<%[email protected]!"$=$N$h$&$K;W$$$^$7$?!#e(B

e$B$o$?$7$NG’<1$G$O0J2<$NDL$j$K$J$C$F$$$^$9!#e(B
:external_encoding : e$B%U%!%$%k%7%9%F%$N%(%s%3!<%G%#%s%0$r6/@)E*$K;XDj$9$k5!9=e(B :internal_encoding : e$B<+F0JQ49$N$?$a$N5!9=e(B e$B$J$N$G!"$3$A$i$G!"e(B :external_encoding : e$B%7%9%F%%M%$%F%#%V$N%(%s%3!<%G%#%s%0$r;XDje(B (e$B8=:_$O$J$$e(B)
:internal_encoding : e$B<+F0JQ49$5$;$J$$e(B
e$B$H;XDj$9$l$P!"e(B
e$B!VL5JQ49$N%Q%9$K3NEY$N9b$$%(%s%3!<%G%#%s%0$r$D$1$F$rJV$9e(B API e$B$rMQ0U$9$k!We(B
e$B$O0l1~<B8=$G$-$^$9!#e(B

e$B$d$j$?$$$3$H$KBP$7$F$=$l$O1*1s$G$O$"$j$^$;$s$+e(B?

e$B$=$l$K!";XDj$K<:GT$9$k$He(B Dir e$B$OI=<(@lMQ$K$J$C$F$7$^$&$o$1$Ge(B
e$B$9$h$M!#[email protected]$r$3$l$_$h$,$7$KDs6!$9$k$N$ONI$/$J$$$N$Ge(B
e$B$O$J$$$G$7$g$&$+!#e(B

e$B$A$J$_$K!"e(BWindows e$B%U%!%$%k%Q%9$re(B FS e$B$KEO$7$?>l9g$NF0:n$NM=Dj$r=q$$$F$*$/$H!"e(B
US-ASCIIe$B!"e(BASCII-8BIT e$B5Z$Se(B Unicode e$B7Oe(B -> UTF-16LE e$B$K$7$Fe(B Unicode API e$B$KEO$9e(B
locale -> ANSI API e$B$KEO$9e(B or UTF-16LE e$B$KJQ49$7$F$+$ie(B Unicode API e$B$KEO$9e(B
e$B$=$l0J30e(B -> UTF-16LEe$B$K<+F0JQ49$7$Fe(B Unicode API or e$BNc30e(B or e$B$=$N$^$^e(B ANSI

e$BLdBj$O$=$l0J30$G!“e(B
e$B<+F0JQ49$9$k$He(B Microsoft CodePage e$B0J30$+$iJQ49$9$k$H%^%C%T%s%0$N0c$$$G$O$^[email protected]$,e(B
e$B9b$$$N$Ge(B MSCP e$B$G$J$$>l9g$+!”$^$?$Oe(B locale e$B0J30$G$ONc30$r=P$7$?$$$N$G$9$,!"e(B
e$B$=$l$r$d$k$He(B Unix e$B$N>l9g$GHa$7$$;W$$$r$9$k$N$GG:$^$7$/;W$C$F$$$k$H$3$m$G$9!#e(B

Unix e$B$N%U%!%$%kL>$O%P%$%HNs$J$N$G!"e(Bstring e$B$N%(%s%3!<%G%#%s%0e(B
e$B$OL5;k$7$F%P%$%HNs$r$=$N$^$^;H$&$Y$-$G$9!#%(%s%3!<%G%#%s%0$Ke(B
e$B$h$C$FNc30$K$9$k$N$OH?BP$G$9!#e(B

Windows e$B$N%U%!%$%kL>$OJ8;[email protected]$H;W$&$N$G!"e(Blocale e$B0J30$OA4Ite(B
UTF-16LE e$B$KJQ49$7$F$7$^$($P$$$$$N$G$O$J$$$+$H;W$C$F$$$^$9!#e(B

In article [email protected],
“NARUSE, Yui” [email protected] writes:

:external_encoding/:inernal_encoding e$BJ}<[email protected]$H!“e(BWindows e$B4D6-MQ$Ke(B
:internal_encoding e$B$,I,MW$G$9!#e(B
e$B$D$^$j!”%G%U%)%k%H$Ge(B locale e$B$,F~$C$F$$$F!"$3$3$G<+F0JQ49$r$7$F$$$^$9!#e(B

e$B$`$7$m!":G$b;H$o$l$k$N$O$3$A$i$J$N$+$J!#e(B

e$B$h$/$o$+$i$+$C$?$N$G$9$,!"6qBNE*$Ke(B :internal_encoding e$B$O$I$&e(B
e$B;H$&$N$G$9$+e(B?

[email protected]@%$G$9!#e(B

Tanaka A. wrote:

e$B;H$&$N$G$9$+e(B?
Windows e$B$Ge(B W e$B7Oe(B API e$B$,;H$o$l$k$N$rA0Ds$H$7$Fe(B
(e$B:#$O$^[email protected](B A e$B7Oe(B)e$B!"e(B

Dir.foreach(".", :internal_encoding => “CP51932”) do |fn|
p [fn, File.size(fn)] # Windows e$B$J$N$G%Q%9<+F0JQ49e(B
end

e$B$H$+$G$7$g$&$+!#e(B

Tanaka A. wrote:

opendir(".", :external_encoding=>“UTF-8”){|dir| puts dir.read }
Dir e$B$Ne(B :external_encoding e$B$He(B :internal_encoding e$B$O:o=|$7$^$;e(B
e$B$s$+e(B?

[ruby-dev:35644] e$B$NDL$j!"e(B:external_encoding [email protected]$He(B
force_encoding e$B$K$J$j$^$9!#e(B

:external_encoding/:inernal_encoding e$BJ}<[email protected]$H!“e(BWindows
e$B4D6-MQ$Ke(B
:internal_encoding e$B$,I,MW$G$9!#e(B
e$B$D$^$j!”%G%U%)%k%H$Ge(B locale
e$B$,F~$C$F$$$F!"$3$3$G<+F0JQ49$r$7$F$$$^$9!#e(B

e$B$`$7$m!":G$b;H$o$l$k$N$O$3$A$i$J$N$+$J!#e(B

e$B$^$!!"EDCf$5$s$N;XE&$G5$IU$$$?$N$G$9$,!"e(B
filesystem e$B$H0[$J$ke(B encoding e$B$r;}$C$F$$$k$,@5$7$$e(Bpath e$B$Ne(B string e$B$r!"e(B
e$BB>$Ne(B FS e$B7O$Ne(B API [email protected]>l9g$OG:$^$7$/!"e(B
e$B0z?t$Ne(B string e$B$re(B filesystem encoding e$B$K<+F0JQ49!“e(B
e$B$^$?$Oe(B filesystem encoding e$B$H0[$J$k>l9g$ONc30!”$J$s$F$3$H$r$9$k$H!"e(B
Unix e$B7O$G$O$3$N%1!<%9$GHa$7$$$3$H$K$J$j$^$9!#e(B

Unix e$B$N%U%!%$%kL>$OJ8;zNs$G$J$/%P%$%HNs$J$N$G!"J8;[email protected]$H;W$Ce(B
e$B$F07$($PL5MQ$KLdBj$r8F$S9~$_$^$9$M!#e(B

e$B$"$!!"$J$k$[$I!#e(B

e$B$=$l$K!";XDj$K<:GT$9$k$He(B Dir e$B$OI=<(@lMQ$K$J$C$F$7$^$&$o$1$Ge(B
e$B$9$h$M!#[email protected]$r$3$l$_$h$,$7$KDs6!$9$k$N$ONI$/$J$$$N$Ge(B
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(Unix e$B$de(B Mac OS X e$B$G$O:[email protected]([email protected]$+$ie(B)

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e$B$h$C$FNc30$K$9$k$N$OH?BP$G$9!#e(B

Windows e$B$N%U%!%$%kL>$OJ8;[email protected]$H;W$&$N$G!"e(Blocale e$B0J30$OA4Ite(B
UTF-16LE e$B$KJQ49$7$F$7$^$($P$$$$$N$G$O$J$$$+$H;W$C$F$$$^$9!#e(B

e$B$J$k$[$I!"[email protected]$G$9$M!#e(B
e$B$3$A$i$O$=$l$G;[email protected]$G$9!#e(B

e$B$H$3$m$G!"e(BWindows e$B$Ge(B :external_encoding e$B$Ke(B Unicode e$B$G$be(B
locale e$B$G$b$J$$e(B encoding e$B$r;XDj$7$?$i$I$&$J$k$s$G$9$,e(B?

Windows e$B$G$Oe(B :external_encoding e$B$Oe(B Unicode
e$B7O$N$_$G$9$+$M!#e(B
e$B!Ve(BWindows e$B$N%U%!%$%kL>$OJ8;zNs!W$H$$$&$N$O!"e(BUnicode
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Unicode e$B0J30$Ne(B :external_encoding [email protected]$HNc30$G$$$$$N$+$J!#e(B
Windows
e$B$N%U%!%$%kL>$,%P%$%HNs$K$J$k%1!<%9$,$b$7B8:_$9$k$J$i$PI,MW$J$N$G$7$g$&$,!"e(B
e$B0JA0$Ne(B samba e$B$NOCEy$N46$8$G$OI,MW$J$5$=$&$G$7$?$7!#e(B

[email protected]@%$G$9!#e(B

Tanaka A. wrote:

e$B$U$`!“e(BCP51932 e$B$G$9$+!#;HMQIQEY$,Dc$=$&$G$9$M!#e(B
e$B$b$C$HIaDL$N?M$,;H$$$=$&$JNc$C$F$”$j$^$9$+e(B?

Windows e$B>e$G$Ne(B Dir.open e$B$N%G%U%)%k%H$O!“e(B
:external_encoding = UTF-8
:internal_encoding = CP932
e$B$J$N$G!”$3$A$i$,:G$b;HMQIQEY$N9b$$Nc$G$7$g$&$+!#e(B
e$B%G%U%)%k%[email protected]_Dj$r!V;H$&[email protected]$&$N$+$I$&$+$OHyL/$J$H$3$m$G$9$,!#e(B

e$B$C$F!"$b$7$+$7$F!"EDCf$5$s$NA[[email protected]$H!"e(BWindows e$B$G$O!"e(B
:external_encoding e$B$Ke(B locale
e$B$r;XDj2DG=$C$F$3$H$K$J$C$F$^$9!)e(B
:external_encoding e$B$NItJ,$G$O7gMn$NH/@8$9$kJQ49$Oe(B
[email protected]$C$?$N$G$9$,!"e(B

e$B$H=q$-$^$7$?$,!“e(B:internal_encoding e$B$r;H$&$H!”%U%!%$%k$rF1Dje(B
e$B$G$-$J$/$J$j$^$9!#[email protected]<A$G$9!#e(B

e$B%U%!%$%k$N%Q%9$,%P%$%HNs$G$"$ke(B Unix e$B$G$O!“e(B
e$B$=$N$h$&$JA`:n$O6KNO;H$$$E$i$/$9$k$Y$-!”$H$$$&<gD%$G$9$h$M!#e(B
e$BM}2r$O$G$-$^$9!#e(B

String#encode e$B$G9T$&$H$$$&$N$,$$$$$s$8$c$J$$$G$7$g$&$+!#e(B
e$B;n9T:x8m$7$?$$$H$-$Oe(B :internal_encoding
e$B$r;H$o$J$1$l$P$$$$$G$9$h$M!#e(B
e$B$=$7$F!"$3$3$G;H$o$:$7$F$I$3$G;H$&[email protected]$H$$$&<ALd$N2sEz$O!“e(B
e$B%G%U%)%k%HF0:n$G;H$&!”$K$J$j$^$9!#e(B

e$B$3$N$"$?$j$NLdBj$O$b$H$h$je(B Windows e$B$Ne(B A e$B7Oe(B API
e$B$,;}$C$F$$$kLdBj$G$9$M!#e(B
e$B$^$?!"e(BWindows e$B$K$*$$$F$O%G%U%)%k%H$G$Oe(B locale
e$B$NJ8;zNs$rJV$7B3$1$J$$$He(B
e$B$$$1$J$$$G$7$g$&$+$i!"F($l$i$l$J$$LdBj$H$b$$$($^$9!#e(B

e$B$"$H!“JQ49$K<:GT$7$?$H$-$K%U%!%$%kL>$,<:$o$l$k!”$H$$$&[email protected]$b$"e(B
e$B$j$^$9!#e(BDir#read e$BFb$G!“e(Breaddir(3) [email protected]$7$?8e$KJQ49$r9T$&$?e(B
e$B$a!”$=$3$GNc30$,5/$-$l$Pe(B readdir e$B$,JV$7$?%U%!%$%kL>$,<:$o$le(B
e$B$^$9!#e(B

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e$B$=$3$b:o=|$7$F$"$j$^$9!#e(B
e$B$3$N%Q%C%[email protected]$H!"e(Breaddir e$B$,2?$rJV$9$+$K0MB8$7$^$9$,!"e(B
Windows e$B4D6-$K$*$$$Fe(B UTF-16LE e$B$+e(B locale
[email protected]$i$l$^$;$s$h$M!#e(B

e$B$^$H$a$k$H!“0J2<$NF0:n$,$G$-$kI,MW$,$”$k!<$G$9$+$M!#e(B

== e$B%G%U%)%k%He(B
Windows: UTF-16LE -> locale e$B<+F0JQ49e(B
Unix: locale

== [email protected](B
Windows: UTF-8
Unix: locale

== e$B6/@);XDje(B
Unix: e$BG$0U$Ne(B encoding e$B$Ke(B force_encoding

In article [email protected],
“NARUSE, Yui” [email protected] writes:

Windows e$B$Ge(B W e$B7Oe(B API e$B$,;H$o$l$k$N$rA0Ds$H$7$Fe(B (e$B:#$O$^[email protected](B A e$B7Oe(B)e$B!"e(B

Dir.foreach(".", :internal_encoding => “CP51932”) do |fn|
p [fn, File.size(fn)] # Windows e$B$J$N$G%Q%9<+F0JQ49e(B
end

e$B$H$+$G$7$g$&$+!#e(B

e$B$U$`!“e(BCP51932 e$B$G$9$+!#;HMQIQEY$,Dc$=$&$G$9$M!#e(B
e$B$b$C$HIaDL$N?M$,;H$$$=$&$JNc$C$F$”$j$^$9$+e(B?

e$B$7$+$7!"$d$O$je(B :internal_encoding e$B$r:o=|$7$?$[$&$,$$$$$H;W$$e(B
e$B$^$9!#e(B

e$B$^$:!“e(Bunix e$B$Ge(B :internal_encoding
e$B$r;H$C$FJQ49$9$k$H!”%U%!%$e(B
e$B%kL>$H$7$F$N%P%$%HNs$,2u$l$F!"e(Bopen e$BEy$NA`:n$,=PMh$J$/$J$j$^e(B
e$B$9!#0JA0!"e(B[ruby-dev:34933] e$B$Ge(B

| e$B%U%!%$%kL>$G0lHV=EMW$J$N$O!"%U%!%$%k$rF1Dj$G$-$k$H$$$&@-<A$Ge(B
| e$B$O$J$$$G$7$g$&$+!#%U%!%$%kL>$rFI$a$k$H$$$&$N$O$=$N<!$K$/[email protected](B
| e$B<[email protected]$H;W$$$^$9!#e(B

e$B$H=q$-$^$7$?$,!“e(B:internal_encoding e$B$r;H$&$H!”%U%!%$%k$rF1Dje(B
e$B$G$-$J$/$J$j$^$9!#[email protected]<A$G$9!#e(B

e$B$^$?e(B windows
e$B$G$b!";XDj$9$k%(%s%3!<%G%#%s%0$K$h$C$FLdBj$,$"$Ce(B
e$B$?$j$J$+$C$?$j$9$k$H$$$&$3$H$,$"$j$^$9!#@8$N%U%!%$%kL>$H;XDje(B
e$B$7$?%(%s%3!<%G%#%s%0$H$NJQ49$Ge(B round trip e$B$9$k$+$I$&$+$,LdBje(B
e$B$G$9$,!"$3$l$OCN$C$F$$$J$$$HH=CG$,:$Fq$G$9!#$7$+$b!"CN$i$J$$e(B
e$B$R$H$,;n9T:x8m$7$FD4$Y$F$_$h$&$H;W$C$F$b!"e(B:internal_encoding
e$B$r;H$&$H!“JQ4985$NJ8;zNs$r3NG’$G$-$^$;$s$+$i!”;n9T:x8m$9$k$3e(B
e$B$H<+BN$,:$Fq$G$9!#e(B

e$B$"$H!“JQ49$K<:GT$7$?$H$-$K%U%!%$%kL>$,<:$o$l$k!”$H$$$&[email protected]$b$"e(B
e$B$j$^$9!#e(BDir#read e$BFb$G!“e(Breaddir(3)
[email protected]$7$?8e$KJQ49$r9T$&$?e(B
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e$B$^$9!#e(B

e$B$3$N$h$&$JLdBj$r9M$($k$He(B :internal_encoding e$B$KAjEv$9$k$3$H$re(B
e$B$d$j$?$1$l$P!"e(BDir e$B<+BN$8$c$J$/$F!"e(BDir e$B$r;H$&B&$,e(B
String#encode e$B$G9T$&$H$$$&$N$,$$$$$s$8$c$J$$$G$7$g$&$+!#e(B

e$B$D$^$j!"e(B
Dir.open(dir, :internal_encoding=>enc) {|d|
d.read
}
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Dir.open(dir) {|d|
d.read.encode(enc)
}
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e$B$9!#e(B

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e$B%Q%9$rJQ49$9$k$3$H$,e(B
e$B$”$C$F!“e(BDir.open e$B=PMh$k$Y$-$b$N$,=PMh$J$$$3$H$,$”$C$?$N$G!“e(B
e$B$=$3$b:o=|$7$F$”$j$^$9!#e(B

% svn diff --diff-cmd diff -x ‘-u -p’
Index: dir.c

— dir.c (revision 18220)
+++ dir.c (working copy)
@@ -291,7 +291,6 @@ VALUE rb_cDir;
struct dir_data {
DIR *dir;
char *path;

  • rb_encoding *intenc;
    rb_encoding *extenc;
    };

@@ -315,7 +314,6 @@ dir_s_alloc(VALUE klass)

 dirp->dir = NULL;
 dirp->path = NULL;
  • dirp->intenc = NULL;
    dirp->extenc = NULL;

    return obj;
    @@ -332,66 +330,37 @@ dir_initialize(int argc, VALUE *argv, VA
    {
    struct dir_data *dp;
    static rb_encoding *fs_encoding;

  • rb_encoding *intencoding, *extencoding;

  • rb_encoding *extencoding;
    VALUE dirname, opt;
  • static VALUE sym_intenc, sym_extenc;
  • static VALUE sym_extenc;
  • if (!sym_intenc) {
  • sym_intenc = ID2SYM(rb_intern(“internal_encoding”));
  • if (!sym_extenc) {
    sym_extenc = ID2SYM(rb_intern(“external_encoding”));
    fs_encoding = rb_filesystem_encoding();
    }
  • intencoding = NULL;
    extencoding = fs_encoding;
    rb_scan_args(argc, argv, “11”, &dirname, &opt);

    if (!NIL_P(opt)) {

  •    VALUE v, extenc=Qnil, intenc=Qnil;
    
  •    VALUE v, extenc=Qnil;
       opt = rb_convert_type(opt, T_HASH, "Hash", "to_hash");
    
  •    v = rb_hash_aref(opt, sym_intenc);
    
  •    if (!NIL_P(v)) intenc = v;
       v = rb_hash_aref(opt, sym_extenc);
       if (!NIL_P(v)) extenc = v;
    

    if (!NIL_P(extenc)) {
    extencoding = rb_to_encoding(extenc);

  •  if (!NIL_P(intenc)) {
    
  • intencoding = rb_to_encoding(intenc);

  • if (extencoding == intencoding) {

  •    rb_warn("Ignoring internal encoding '%s': it is identical to 
    

external encoding ‘%s’",

  •      RSTRING_PTR(rb_inspect(intenc)),
    
  •      RSTRING_PTR(rb_inspect(extenc)));
    
  •    intencoding = NULL;
    
  • }
  •  }
    
  • }
  • else if (!NIL_P(intenc)) {
  •  rb_raise(rb_eArgError, "External encoding must be specified when 
    

internal encoding is given");
}
}

 FilePathValue(dirname);
  • {
  • rb_encoding *dirname_encoding = rb_enc_get(dirname);
  • if (rb_usascii_encoding() != dirname_encoding
  •  && rb_ascii8bit_encoding() != dirname_encoding
    

-#if defined APPLE

  •  && rb_utf8_encoding() != dirname_encoding
    

-#endif

  •  && extencoding != dirname_encoding) {
    
  •  if (!intencoding) intencoding = dirname_encoding;
    
  •  dirname = rb_str_transcode(dirname, 
    

rb_enc_from_encoding(extencoding));

  • }

  • }

    Data_Get_Struct(dir, struct dir_data, dp);
    if (dp->dir) closedir(dp->dir);
    if (dp->path) xfree(dp->path);
    dp->dir = NULL;
    dp->path = NULL;

  • dp->intenc = intencoding;
    dp->extenc = extencoding;
    dp->dir = opendir(RSTRING_PTR(dirname));
    if (dp->dir == NULL) {
    @@ -457,9 +426,6 @@ static VALUE
    dir_enc_str(VALUE str, struct dir_data *dirp)
    {
    rb_enc_associate(str, dirp->extenc);

  • if (dirp->intenc) {

  •    str = rb_str_transcode(str, 
    

rb_enc_from_encoding(dirp->intenc));

  • }
    return str;
    }

[email protected]@%$G$9!#e(B

Tanaka A. wrote:

e$B%G%U%)%k%HF0:n$NFbIt$G;H$&$H$$$&$N$O!"%f!<%6$,;XDj2DG=$J%*%We(B
e$B%7%g%s$NB8:_0U5A$K$O$J$j$^$;$s!#e(B

e$B$U!<$`!#e(B

Windows e$B$Ne(B Unicode e$B%U%!%$%kL>$O8=:_07$o$l$F$$$^$;$s$N$G!"e(B
locale e$B$N>l9g$7$+07$C$F$$$^$;$s!#e(BUnicode e$B%U%!%$%kL>$N<BAu$Oe(B
e$B8e$NOC$G$9!#e(B

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Windows e$B$Ne(B Unicode
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e$B$H$j$”$($:e(B [ruby-dev:35661]
e$B$N%Q%C%A$rEv$F$F$7$^$C$F$/[email protected]$5$$$^$;$s$+!#e(B

e$BEvLLe(B Wndows e$B$Ge(B :enternal_encoding
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e$BEj$2$5$;$?$$$G$9$,!"$3$l$O8e$G$d$C$F$*$-$^$9!#e(B

e$B$3$s$P$s$Oe(B sheepman e$B$G$9!#e(B

On Sat, 26 Jul 2008 17:49:49 +0900
Tanaka A. [email protected] wrote:

e$B$H$$$&$o$1$G!"%Q%C%A$r=q$$$F$_$^$7$?!#e(B

external_encoding e$B$H$$$&L>A0$r$d$a$F!"e(Bfs_encoding e$B$J$I$Ke(B
e$BJQ$($k$H$$$&$N$O$I$&$G$7$g$&$+!#e(Bexternal_encoding
e$B$H$$$&L>A0$J$N$Ke(B
e$B$=$N%G%U%)%k%HCM$,e(B Encoding.default_external
e$B$H$O$^$C$?$/4X78$J$$e(B
e$B$H$$$&$N$O:[email protected]$H;W$$$^$9!#e(B

In article [email protected],
“NARUSE, Yui” [email protected] writes:

Windows e$B>e$G$Ne(B Dir.open e$B$N%G%U%)%k%H$O!“e(B
:external_encoding = UTF-8
:internal_encoding = CP932
e$B$J$N$G!”$3$A$i$,:G$b;HMQIQEY$N9b$$Nc$G$7$g$&$+!#e(B
e$B%G%U%)%k%[email protected]_Dj$r!V;H$&[email protected]$&$N$+$I$&$+$OHyL/$J$H$3$m$G$9$,!#e(B

e$B%G%U%)%k%[email protected]_Dj$O!V;H$&!W$H$O$$$($J$$$G$7$g$&!#e(B

e$BC1$K$=$&$$$&JQ49$,%O!<%I%3!<%I$5$l$F$$$F!"%G%U%)%k%H$G$=$NJQe(B
e$B49$,F0$/$H$7$F$bLdBj$J$$$N$G!"e(B:internal_encoding e$B$H$$$&%*%We(B
e$B%7%g%s$NB8:_0U5A$K$O$J$j$^$;$s!#e(B

e$B$"$H!"e(BDir.open e$B$,%G%U%)%k%H$Ge(B Windows e$B$Ne(B Unicode
e$B$Je(B API e$B$re(B
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e$B$C$F!"$b$7$+$7$F!"EDCf$5$s$NA[[email protected]$H!"e(BWindows e$B$G$O!"e(B
:external_encoding e$B$Ke(B locale e$B$r;XDj2DG=$C$F$3$H$K$J$C$F$^$9!)e(B
:external_encoding e$B$NItJ,$G$O7gMn$NH/@8$9$kJQ49$Oe(B
[email protected]$C$?$N$G$9$,!"e(B

e$B$$$(!#e(B[ruby-dev:35644] e$B$G?R$M$Fe(B [ruby-dev:35652] e$B$Ge(B

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e$B$HEz$([email protected]$$$?$N$G!"$?$H$($Pe(B UTF-8, UTF-16LE e$B$J$I$O;XDje(B
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e$B;n9T:x8m$7$?$$$H$-$Oe(B :internal_encoding e$B$r;H$o$J$1$l$P$$$$$G$9$h$M!#e(B
e$B$=$7$F!"$3$3$G;H$o$:$7$F$I$3$G;H$&[email protected]$H$$$&<ALd$N2sEz$O!“e(B
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e$B$G%U%!%$%kL>$rJV$9$N$OL5M}$8$c$J$$$G$9$+e(B?

Windows e$B$Ne(B Unicode e$B%U%!%$%kL>$O8=:_07$o$l$F$$$^$;$s$N$G!"e(B
locale e$B$N>l9g$7$+07$C$F$$$^$;$s!#e(BUnicode e$B%U%!%$%kL>$N<BAu$Oe(B
e$B8e$NOC$G$9!#e(B

e$B$^$H$a$k$H!“0J2<$NF0:n$,$G$-$kI,MW$,$”$k!<$G$9$+$M!#e(B

== e$B%G%U%)%k%He(B
Windows: UTF-16LE -> locale e$B<+F0JQ49e(B
Unix: locale

== [email protected](B
Windows: UTF-8
Unix: locale

e$B$3$l$i$N$U$?$D$O!“e(B[ruby-dev:35617] e$B$G=R$Y$?!”%U%!%$%kL>$rJ8e(B
e$B;[email protected]$7$/07$($k$h$&[email protected]$$,e(B

  • e$B%W%m%0%i%`$G$J$/!“4D6-$K$”$ke(B
  • e$B%W%m%0%i%`<+?H$K$"$ke(B
    e$B$H$$$&$U$?$D$NN)>l$KBP1~$9$k$b$N$G!“I,MW$G$9$7!”=EMW$G$9!#e(B

== e$B6/@);XDje(B
Unix: e$BG$0U$Ne(B encoding e$B$Ke(B force_encoding

e$B$3$l$O$H$/$KI,[email protected]$,9b$$$H$O;W$C$F$$$^$;$s!#e(B
Unix e$B$G$O!"$"$C$F$bLdBj$J$$$+$b$7$l$^$;$s$,!#e(B

[email protected]@%$G$9!#e(B

sheepman wrote:

e$B$=$N%G%U%)%k%HCM$,e(B Encoding.default_external e$B$H$O$^$C$?$/4X78$J$$e(B
e$B$H$$$&$N$O:[email protected]$H;W$$$^$9!#e(B

:internal_encoding e$B$,>C$($?$N$b$"$C$FL>>N$NJQ99$O9M$($F$$$^$9!#e(B
e$B$9$C$-$j$^$H$^$l$Pe(B :encoding
e$B$G$b$$$$$+$J!<$H;W$C$F$$$k$N$G$9$,!#e(B

e$B$H$j$"$($:e(B 1.9.1 e$B$^$G$K$OJQ$($^$9!#e(B

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

e$B$=$m$=$me(Bfeature freezee$B$,6a$$$N$G3NG’%b!<%I$G$9!#e(B

In message “Re: [ruby-dev:35689] Re: non-locale filename encoding”
on Tue, 29 Jul 2008 23:01:03 +0900, “NARUSE, Yui”
[email protected] writes:

|> external_encoding e$B$H$$$&L>A0$r$d$a$F!“e(Bfs_encoding e$B$J$I$Ke(B
|> e$BJQ$($k$H$$$&$N$O$I$&$G$7$g$&$+!#e(Bexternal_encoding e$B$H$$$&L>A0$J$N$Ke(B
|> e$B$=$N%G%U%)%k%HCM$,e(B Encoding.default_external e$B$H$O$^$C$?$/4X78$J$$e(B
|> e$B$H$$$&$N$O:[email protected]$H;W$$$^$9!#e(B
|
|:internal_encoding e$B$,>C$($?$N$b$”$C$FL>>N$NJQ99$O9M$($F$$$^$9!#e(B
|e$B$9$C$-$j$^$H$^$l$Pe(B :encoding e$B$G$b$$$$$+$J!<$H;W$C$F$$$k$N$G$9$,!#e(B
|
|e$B$H$j$"$($:e(B 1.9.1 e$B$^$G$K$OJQ$($^$9!#e(B

e$B8=>u$Oe(Binternal_encodinge$B$,>C$($F!“e(Bexternal_encodinge$B$,;D$C$F$$e(B
e$B$k>uBV$G$9$,!”$3$l$O$3$l$G$+$^$$$^$;$s$+!)e(B localee$B$H0c$&%(%se(B
e$B%3!<%G%#%s%0$N$H$-$KFI$_9~$s$G$/$k%U%!%$%kL>$N%(%s%3!<%G%#%se(B
e$B%0$J$N$G!"e(Bencodinge$B$G==J,$G$O$J$$$+$H$O;W$$$^$9$,!#e(B

[email protected]@%$G$9!#e(B

Yukihiro M. wrote:

|> e$B$H$$$&$N$O:[email protected]$H;W$$$^$9!#e(B
|
|:internal_encoding e$B$,>C$($?$N$b$"$C$FL>>N$NJQ99$O9M$($F$$$^$9!#e(B
|e$B$9$C$-$j$^$H$^$l$Pe(B :encoding e$B$G$b$$$$$+$J!<$H;W$C$F$$$k$N$G$9$,!#e(B
|
|e$B$H$j$"$($:e(B 1.9.1 e$B$^$G$K$OJQ$($^$9!#e(B

e$B8=>u$Oe(Binternal_encodinge$B$,>C$($F!“e(Bexternal_encodinge$B$,;D$C$F$$e(B
e$B$k>uBV$G$9$,!”$3$l$O$3$l$G$+$^$$$^$;$s$+!)e(B localee$B$H0c$&%(%se(B
e$B%3!<%G%#%s%0$N$H$-$KFI$_9~$s$G$/$k%U%!%$%kL>$N%(%s%3!<%G%#%se(B
e$B%0$J$N$G!"e(Bencodinge$B$G==J,$G$O$J$$$+$H$O;W$$$^$9$,!#e(B

e$B9M$($?8B$j$G$OLdBj$J$5$=$&$J$N$Ge(B r19246 e$B$Ge(B :encoding
e$B$KJQ$($^$7$?!#e(B

In article [email protected],
sheepman [email protected] writes:

external_encoding e$B$H$$$&L>A0$r$d$a$F!"e(Bfs_encoding e$B$J$I$Ke(B
e$BJQ$($k$H$$$&$N$O$I$&$G$7$g$&$+!#e(Bexternal_encoding e$B$H$$$&L>A0$J$N$Ke(B
e$B$=$N%G%U%)%k%HCM$,e(B Encoding.default_external e$B$H$O$^$C$?$/4X78$J$$e(B
e$B$H$$$&$N$O:[email protected]$H;W$$$^$9!#e(B

e$B$^$:e(B external_encoding e$B$,=<J,$KLr$KN)$D$N$+$I$&$+$r8!F$$9$ke(B
e$B$N$,$$$$$N$G$O$J$$$G$7$g$&$+!#e(B

e$BLr$KN)$?$J$$$N$G$"$l$PL>[email protected]$9$k$^$G$b$J$/>C$;$P$$e(B
e$B$$$G$7$g$&!#e(B

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