# Pattern match with UTF-8 regexp and EUC-JP string

**URL:** <https://www.ruby-forum.com/t/pattern-match-with-utf-8-regexp-and-euc-jp-string/117838>\
**Category:** Development\
**Created:** [October 21, 2007, 8:25am UTC](https://www.ruby-forum.com/t/pattern-match-with-utf-8-regexp-and-euc-jp-string/117838 "2007-10-21T08:25:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [October 21, 2007, 8:25am UTC](https://www.ruby-forum.com/t/pattern-match-with-utf-8-regexp-and-euc-jp-string/117838/1 "2007-10-21T08:25:23Z")

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/./u e$B$H$$$&e(B UTF-8 e$B$Je(B 1e$BJ8;z$rI=8=$9$k%Q%?!\<%s$Ke(B EUC-JP  
e$B$Je(B  
“\xa1\xa1” e$B$H$$$&e(B 1e$BJ8;z$JJ8;zNs$r%^%C%A$5$;$?$H$-!“e(B”\241"  
e$B$He(B  
e$B$$$&e(B 1e$B%P%$%H$K%^%C%A$7$^$9!#e(B

% ./ruby -ve ‘p(/./u =~ “\xa1\xa1”.force\_encoding(“euc-jp”)); puts  
$&.dump’  
ruby 1.9.0 (2007-10-20 patchlevel 0) [i686-linux]  
0  
“\241”

UTF-8 e$B$G$be(B EUC-JP e$B$G$b$J$$e(B “\241” e$B$H$$$&e(B  
1e$B%P%$%H$,=P$F$/$k$Ne(B  
e$B$O$\*$+$7$$$H;W$$$^$9!#e(B

e$B%Q%?!\<%s$,e(B UTF-8 e$B$G$"$k$3$H$rB:=E$7$Fe(B character encodings  
differ e$B$K$J$k$+!"$"$k$$$Oe(B EUC-JP e$B$Je(B  
1e$BJ8;z$K%^%C%A$9$k$+$I$Ae(B  
e$B$i$+$,4|BT$5$l$kF0:n$@$H;W$&$N$G$9$,!"$I$&$G$7$g$&$+!#e(B

---

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [October 23, 2007, 11:56am UTC](https://www.ruby-forum.com/t/pattern-match-with-utf-8-regexp-and-euc-jp-string/117838/2 "2007-10-23T11:56:53Z")

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At 15:25 07/10/21, Tanaka A. wrote:

> e$B$O$\*$+$7$$$H;W$$$^$9!#e(B
> 
> e$B%Q%?!\<%s$,e(B UTF-8 e$B$G$“$k$3$H$rB:=E$7$Fe(B character encodings  
> differ e$B$K$J$k$+!”$“$k$$$Oe(B EUC-JP e$B$Je(B 1e$BJ8;z$K%^%C%A$9$k$+$I$Ae(B  
> e$B$i$+$,4|BT$5$l$kF0:n$@$H;W$&$N$G$9$,!”$I$&$G$7$g$&$+!#e(B

e$BEDCf$5$s$HL^O@F146$G$9!#LdBj$N860x$r?dB,$7$^$9$H!“e(B\xa1 / \241  
e$B$Oe(B UTF-8 e$B$GJ8;z$rCx$9%P%$%HNs$N@hF,$K$O$”$jF@$J$$$N$G!"e(B  
e$B%(%i!\<BP:v$H$7$F0lJ8;z$HF1Ey$K07$o$l$F$$$k$N$G$O$J$$$G$7$g$&$+!#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)