# Encode! $B$OJQ49$7$J$$$H$-$K(B \<nil\> $B$K$J$C$F$7$^$&!#(B

**URL:** <https://www.ruby-forum.com/t/encode-b-ojq49-7-j-h-k-b-nil-b-k-j-c-f-7-b/123849>\
**Category:** Development\
**Created:** [December 21, 2007, 8:19am UTC](https://www.ruby-forum.com/t/encode-b-ojq49-7-j-h-k-b-nil-b-k-j-c-f-7-b/123849 "2007-12-21T08:19:04Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![drenovac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ea666f/32.png) [@drenovac](https://www.ruby-forum.com/u/drenovac)\
**Post date:** [December 21, 2007, 8:19am UTC](https://www.ruby-forum.com/t/encode-b-ojq49-7-j-h-k-b-nil-b-k-j-c-f-7-b/123849/1 "2007-12-21T08:19:04Z")

</div>

e$BCfED$5$s!"$3$s$K$A$O!#e(B

test/ruby/test\_transcode.rb e$B$Ne(B 37  
e$B9TL$G%(%i!\<$K$J$C$F$7$^$C$F$$$^$9!#e(B

```
assert_equal('abc'.force_encoding('Shift_JIS'), 

```

‘abc’.force\_encoding(‘Shift\_JIS’).encode!(‘Shift\_JIS’))  
e$B$Ge(B \<“abc”\> expected but was .

e$B$K$J$C$F$$$^$9!#860x$O$h$/J,$+$j$^$;$s!#$b$7?4Ev$?$j$,$"$l$Pe(B  
e$B65$($F$$$?$@$1$^$9$G$7$g$&$+!#e(B

e$B59$7$/$\*4j$$$7$^$9!#e(B Martin.

P.S.: e$B:#=5$O\<x6H$,G$"$j$^$7$?$7!"e(Bcommit  
e$B$N@\_Dj$b;~4V$,$+$+$j$^$7$?$,!"e(B  
e$B$3$l$+$i$A$g$/$A$g$/e(B commit e$B$7$?$$$H;W$C$F$$$^$9!#e(B

#-#-# Martin J. Du"rst, Assoc. Professor, Aoyama Gakuin University  
#-#-# [http://www.sw.it.aoyama.ac.jp](http://www.sw.it.aoyama.ac.jp)[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

---

<div class="post-metadata">

**Author:** ![drenovac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ea666f/32.png) [@drenovac](https://www.ruby-forum.com/u/drenovac)\
**Post date:** [December 21, 2007, 8:42am UTC](https://www.ruby-forum.com/t/encode-b-ojq49-7-j-h-k-b-nil-b-k-j-c-f-7-b/123849/2 "2007-12-21T08:42:28Z")

</div>

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

In message “Re: [ruby-dev:32662] encode! e$B$OJQ49$7$J$$$H$-$Ke(B   
e$B$K$J$C$F$7$^$&!#e(B”  
on Fri, 21 Dec 2007 16:17:42 +0900, Martin D.  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

|test/ruby/test\_transcode.rb e$B$Ne(B 37 e$B9TL$G%(%i!\<$K$J$C$F$7$^$C$F$$$^$9!#e(B  
|  
| assert\_equal(‘abc’.force\_encoding(‘Shift\_JIS’), ‘abc’.force\_encoding(‘Shift\_JIS’).encode!(‘Shift\_JIS’))  
|e$B$Ge(B \<“abc”\> expected but was .  
|  
|e$B$K$J$C$F$$$^$9!#860x$O$h$/J,$+$j$^$;$s!#$b$7?4Ev$?$j$,$"$l$Pe(B  
|e$B65$($F$$$?$@$1$^$9$G$7$g$&$+!#e(B

Rubye$B$G$OEAE}E\*$Ke(B!e$B%a%=%C%I$OJQ99$,9T$o$l$J$+$C$?\>l9g!"e(Bnile$B$rJVe(B  
e$B$9$N$G$=$NEAE}$K=\>$C$?$N$@$H;W$$$^$9!#e(B

e$B$N$G!"$3$NBP1~$r$I$&$9$k$+$G$9$,!#e(B

- String#encode! e$B$OMW$i$J$$$N$G$O$J$$$+!#7k6IFbItE\*$KJQ49$Oe(B  
e$BI,MW$G$5$[$I8zN($,NI$$$o$1$G$O$J$$$N$G!#e(B

- String#encode! e$B$r;D$9$K$7$F$b!VJQ49$J$7$Ge(Bnile$B!W$H$$$&5sF0e(B  
e$B$OF3F~$7$J$$!#Lr$KN)$D%1!\<%9$r;W$$$D$+$J$$$+$ie(B

e$B$N$$$:$l$+$G$O$J$$$+$H;W$$$^$9!#e(B

|P.S.: e$B:#=5$O\<x6H$,G$"$j$^$7$?$7!"e(Bcommit e$B$N@\_Dj$b;~4V$,$+$+$j$^$7$?$,!"e(B  
| e$B$3$l$+$i$A$g$/$A$g$/e(B commit e$B$7$?$$$H;W$C$F$$$^$9!#e(B

e$B$\*4j$$$7$^$9!#e(B

---

<div class="post-metadata">

**Author:** ![drenovac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ea666f/32.png) [@drenovac](https://www.ruby-forum.com/u/drenovac)\
**Post date:** [December 21, 2007, 8:43am UTC](https://www.ruby-forum.com/t/encode-b-ojq49-7-j-h-k-b-nil-b-k-j-c-f-7-b/123849/3 "2007-12-21T08:43:03Z")

</div>

In article [6.0.0.20.2.20071221161018.0c128100@localhost](mailto:6.0.0.20.2.20071221161018.0c128100@localhost),  
Martin D. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

> ```
> assert_equal('abc'.force_encoding('Shift_JIS'), 'abc'.force_encoding('Shift_JIS').encode!('Shift_JIS'))
> 
> ```
> 
> e$B$Ge(B \<“abc”\> expected but was .
> 
> e$B$K$J$C$F$$$^$9!#860x$O$h$/J,$+$j$^$;$s!#$b$7?4Ev$?$j$,$"$l$Pe(B  
> e$B65$($F$$$?$@$1$^$9$G$7$g$&$+!#e(B

e$B$=$&$$$($P!"e(Bencode! e$B$C$FI,MW$J$s$G$7$g$&$+e(B?

---

<div class="post-metadata">

**Author:** ![drenovac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ea666f/32.png) [@drenovac](https://www.ruby-forum.com/u/drenovac)\
**Post date:** [December 21, 2007, 9:00am UTC](https://www.ruby-forum.com/t/encode-b-ojq49-7-j-h-k-b-nil-b-k-j-c-f-7-b/123849/4 "2007-12-21T09:00:02Z")

</div>

e$B\>\>K$5$s!"$3$s$K$A$O!#e(B

At 16:40 07/12/21, Yukihiro M. wrote:

> ‘abc’.force\_encoding(‘Shift\_JIS’).encode!(‘Shift\_JIS’))  
> |e$B$Ge(B \<“abc”\> expected but was .  
> |  
> |e$B$K$J$C$F$$$^$9!#860x$O$h$/J,$+$j$^$;$s!#$b$7?4Ev$?$j$,$"$l$Pe(B  
> |e$B65$($F$$$?$@$1$^$9$G$7$g$&$+!#e(B
> 
> Rubye$B$G$OEAE}E\*$Ke(B!e$B%a%=%C%I$OJQ99$,9T$o$l$J$+$C$?\>l9g!"e(Bnile$B$rJVe(B  
> e$B$9$N$G$=$NEAE}$K=\>$C$?$N$@$H;W$$$^$9!#e(B

e$B$=$&$+$b$7$l$^$;$s!#$3$A$i$G:#$^$G$N7P83$r$$$$$^$9$H!"e(Bnil  
e$B$rJV$9e(B  
e$B$N$G$&$+$/$$$/%1!\<%9$Oe(B nil  
e$B$rJV$9$HLdBj$K$J$k%1!\<%9$h$j\>/$J$$$G$9$,!"e(B  
e$B3’$5$s$N7P83$,D9$$$7!"0c$&$+$b$7$l$^$;$s!#e(B

> e$B$N$G!"$3$NBP1~$r$I$&$9$k$+$G$9$,!#e(B
> 
> - String#encode! e$B$OMW$i$J$$$N$G$O$J$$$+!#7k6IFbItE\*$KJQ49$Oe(B  
> e$BI,MW$G$5$[$I8zN($,NI$$$o$1$G$O$J$$$N$G!#e(B

e$B3N$+$K8zN($OM}M3$K$J$C$F$$$^$;$s!#e(B

> - String#encode! e$B$r;D$9$K$7$F$b!VJQ49$J$7$Ge(Bnile$B!W$H$$$&5sF0e(B  
> e$B$OF3F~$7$J$$!#Lr$KN)$D%1!\<%9$r;W$$$D$+$J$$$+$ie(B

variable.encode!.. e$B$NJQ$o$j$Ke(B variable = variable.encode…  
e$B$r=q$/$N$OI,MW0J\>e$KD9$$$H;W$$$^$9!#e(B

e$B!VJQ49L5$7$Ge(B nile$B!W$O$J$\<$3$N\>l9g$KLdBj$J$N$+$H$$$&$H!“e(B  
e$BA0$b$C$FEY$N%(%s%3!\<%G%#%s%0$+$i$I$N%(%s%3!\<%G%#%s%0$Xe(B  
e$B$I$N%G!\<%?$rJQ49$9$k$N$+J,$+$l$P$$$$$G$9$,!”$?$^$?$^e(B ASCII  
e$B$@$1$H$+$?$^$?$^F1$8%(%s%3!\<%G%#%s%0$K$J$C$F$7$^$C$?\>l9g$Ke(B  
nil e$B$K$J$C$F$7$^$&$HHs\>o$KITJX$K46$8$^$9!#e(B

> e$B$N$$$:$l$+$G$O$J$$$+$H;W$$$^$9!#e(B
> 
> |P.S.: e$B:#=5$O\<x6H$,G$"$j$^$7$?$7!"e(Bcommit e$B$N@\_Dj$b;~4V$,$+$+$j$^$7$?$,!"e(B  
> | e$B$3$l$+$i$A$g$/$A$g$/e(B commit e$B$7$?$$$H;W$C$F$$$^$9!#e(B
> 
> e$B$\*4j$$$7$^$9!#e(B

e$B$A$g$C$HIw$bL$$@0z$$$F$7$^$$$^$7$?$,!“4hD%$C$F$\_$^$9!#e(B  
e$B$H$3$m$G!”:G8e$N:G8e$N;E\>e$2$N$H$3$m$O$I$&$$$&$+$s$8$Ge(B  
e$B9T$o$l$^$9$G$7$g$&$+!#e(BRuby e$B$Ne(B release  
e$B$O=i$a$F$J$N$G$5$C$Q$jJ,$+$j$^$;$s!#e(B

e$B59$7$/$\*4j$$$7$^$9!#e(B Martin.

#-#-# Martin J. Du"rst, Assoc. Professor, Aoyama Gakuin University  
#-#-# [http://www.sw.it.aoyama.ac.jp](http://www.sw.it.aoyama.ac.jp)[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

---

<div class="post-metadata">

**Author:** ![drenovac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ea666f/32.png) [@drenovac](https://www.ruby-forum.com/u/drenovac)\
**Post date:** [December 21, 2007, 2:34pm UTC](https://www.ruby-forum.com/t/encode-b-ojq49-7-j-h-k-b-nil-b-k-j-c-f-7-b/123849/5 "2007-12-21T14:34:43Z")

</div>

e$BLZB\<$G$9!#e(B

Yukihiro M. e$B$5$s$O=q$-$^$7$?e(B:

> e$B!VK\5$$+!W$H5?Ld;k$5$l$J$,$i$be(B25e$BF|%j%j!\<%9$rM=Dj$7$F$$$^$9!#e(B  
> e$B$G!"$3$l$Oe(B25e$BF|$G$G$-$F$$$k$H$3$m$^$G$G$G$=$N$^$^%j%j!\<%9$7$^e(B  
> e$B$9!#e(B24e$BF|e(B(e$BLke(B)e$B$K$O3F\<o%F%9%H$,%(%i!\<$r=P$5$J$$$H$3$m$^$G;}$C$Fe(B  
> e$B$$$-$?$$$G$9!#e(B

e$B%j%j!\<%98e$K=$@5$,I,MW$H;W$o$l$k%P%0e(B(e$B%$%s%9%H!\<%k$G$-$J$$$H$+e(B)e$B$,e(B  
e$BH/8+$5$l$?\>l9g!"$=$NBP=h$O$I$N$h$&$J7A$G9T$o$l$^$9$+e(B?

e$B!&e(B1.9.2e$B$^$GJ|CVe(B  
e$B!&ITDj4|e(B/e$BDj4|E\*$Ke(B 1.9.1 p-xxx  
e$B$N$h$&$J%j%j!\<%9$r9T$$$=$3$G=$@5$rE,MQe(B  
e$B!&$=$NB\>e(B

e$B$/$l$0$l$bL\>A0$OF1$8$@$1$I\<BBN$O0c$&$J$s$F$3$H$OFsEY$H$J$$$h$&$Ke(B  
e$B$\*4j$$$7$^$9!#e(B

---

<div class="post-metadata">

**Author:** ![drenovac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ea666f/32.png) [@drenovac](https://www.ruby-forum.com/u/drenovac)\
**Post date:** [December 21, 2007, 9:35am UTC](https://www.ruby-forum.com/t/encode-b-ojq49-7-j-h-k-b-nil-b-k-j-c-f-7-b/123849/6 "2007-12-21T09:35:48Z")

</div>

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

In message “Re: [ruby-dev:32666] Re: encode! e$B$OJQ49$7$J$$$H$-$Ke(B  
 e$B$K$J$C$F$7$^$&!#e(B”  
on Fri, 21 Dec 2007 16:59:22 +0900, Martin D.  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

|\>e$B$N$G!"$3$NBP1~$r$I$&$9$k$+$G$9$,!#e(B  
|\>  
|\> \* String#encode! e$B$OMW$i$J$$$N$G$O$J$$$+!#7k6IFbItE\*$KJQ49$Oe(B  
|\> e$BI,MW$G$5$[$I8zN($,NI$$$o$1$G$O$J$$$N$G!#e(B  
|  
|e$B3N$+$K8zN($OM}M3$K$J$C$F$$$^$;$s!#e(B  
|  
|\> \* String#encode! e$B$r;D$9$K$7$F$b!VJQ49$J$7$Ge(Bnile$B!W$H$$$&5sF0e(B  
|\> e$B$OF3F~$7$J$$!#Lr$KN)$D%1!\<%9$r;W$$$D$+$J$$$+$ie(B  
|  
|variable.encode!.. e$B$NJQ$o$j$Ke(B variable = variable.encode…  
|e$B$r=q$/$N$OI,MW0J\>e$KD9$$$H;W$$$^$9!#e(B

e$BD9$$$H$$$&$N$OJ,$+$j$^$7$?!#e(Bencode!e$B$N\>l9ge(B(e$BB\>$Ne(BStringe$B%a%=%C%Ie(B  
e$B$H$O0[$J$je(B)e$B!"e(Bnile$B$rJV$7$F4r$7$$$3$H$O$J$$$N$G!"e(Bnile$B$OJV$5$J$$e(B  
e$B$H$$$&$N$,$h$5$=$&$G$9$M!#J,$+$j$^$7$?!#e(B

e$B$J$+$@$5$s$Ke(Bencode!e$B$,e(Bnile$B$rJV$5$J$$$h$&$KJQ99$7$F$b$i$$$^$9!#e(B

|e$B$A$g$C$HIw$bL$$@0z$$$F$7$^$$$^$7$?$,!“4hD%$C$F$\_$^$9!#e(B  
|e$B$H$3$m$G!”:G8e$N:G8e$N;E\>e$2$N$H$3$m$O$I$&$$$&$+$s$8$Ge(B  
|e$B9T$o$l$^$9$G$7$g$&$+!#e(BRuby e$B$Ne(B release e$B$O=i$a$F$J$N$G$5$C$Q$jJ,$+$j$^$;$s!#e(B

e$B!VK\5$$+!W$H5?Ld;k$5$l$J$,$i$be(B25e$BF|%j%j!\<%9$rM=Dj$7$F$$$^$9!#e(B  
e$B$G!"$3$l$Oe(B25e$BF|$G$G$-$F$$$k$H$3$m$^$G$G$G$=$N$^$^%j%j!\<%9$7$^e(B  
e$B$9!#e(B24e$BF|e(B(e$BLke(B)e$B$K$O3F\<o%F%9%H$,%(%i!\<$r=P$5$J$$$H$3$m$^$G;}$C$Fe(B  
e$B$$$-$?$$$G$9!#e(B

```
                            e$B$^$D$b$He(B e$B$f$-$R$me(B /:|)

```

---

<div class="post-metadata">

**Author:** ![drenovac](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/ea666f/32.png) [@drenovac](https://www.ruby-forum.com/u/drenovac)\
**Post date:** [December 21, 2007, 4:16pm UTC](https://www.ruby-forum.com/t/encode-b-ojq49-7-j-h-k-b-nil-b-k-j-c-f-7-b/123849/7 "2007-12-21T16:16:07Z")

</div>

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

In message “Re: [ruby-dev:32669] Re: encode! e$B$OJQ49$7$J$$$H$-$Ke(B  
 e$B$K$J$C$F$7$^$&!#e(B”  
on Fri, 21 Dec 2007 22:34:19 +0900, KIMURA Koichi  
[removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

|e$B%j%j!\<%98e$K=$@5$,I,MW$H;W$o$l$k%P%0e(B(e$B%$%s%9%H!\<%k$G$-$J$$$H$+e(B)e$B$,e(B  
|e$BH/8+$5$l$?\>l9g!"$=$NBP=h$O$I$N$h$&$J7A$G9T$o$l$^$9$+e(B?  
|  
|e$B!&e(B1.9.2e$B$^$GJ|CVe(B  
|e$B!&ITDj4|e(B/e$BDj4|E\*$Ke(B 1.9.1 p-xxx e$B$N$h$&$J%j%j!\<%9$r9T$$$=$3$G=$@5$rE,MQe(B  
|e$B!&$=$NB\>e(B

e$B$^$:e(Bsnapshote$B$rMQ0U$7$F!"$=$l$K$OKh2se(B(svne$B$Ne(B)e$B%j%S%8%g%s$r4^$a$?e(B  
e$B7A$G%Q%C%1!\<%8$7$^$9!#$^$?!“ITDj4|$Ke(Bpatchlevel xxxe$B$H$$$&$b$Ne(B  
e$B$r=P$7$^$9!#4|4V$=$NB\>$O;vA0$K$ODj$a$^$;$s!#$?$V$s!”?t%v7n$4e(B  
e$B$H$K$J$k$N$G$O$J$$$+$H;W$$$^$9!#e(B

|e$B$/$l$0$l$bL\>A0$OF1$8$@$1$I\<BBN$O0c$&$J$s$F$3$H$OFsEY$H$J$$$h$&$Ke(B  
|e$B$\*4j$$$7$^$9!#e(B

e$B?4$7$^$9!#e(B