# Regexp match /.../n against to UTF-8 string

**URL:** <https://www.ruby-forum.com/t/regexp-match-n-against-to-utf-8-string/127202>\
**Category:** Development\
**Created:** [January 26, 2008, 4:03am UTC](https://www.ruby-forum.com/t/regexp-match-n-against-to-utf-8-string/127202 "2008-01-26T04:03:22Z")\
**Posts on this page:** 4\
**Page:** 1

<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:** [January 26, 2008, 4:03am UTC](https://www.ruby-forum.com/t/regexp-match-n-against-to-utf-8-string/127202/1 "2008-01-26T04:03:22Z")

</div>

e$B0J2\<$N$h$&$K!"$D$1$F$b$$$J$$@55,I=8=$Ne(B n e$B%\*%W%7%g%s$K4X$7$Fe(B  
e$B7Y9p$,=P$^$9!#e(B

% ./ruby -ve '# -_- coding:us-ascii -_-  
/a/ = ~ “\xc2\x81”.force\_encoding(“utf-8”)  
’  
ruby 1.9.0 (2008-01-26 revision 15248) [i686-linux]  
-e:2: warning: regexp match /…/n against to UTF-8 string

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<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:** [January 28, 2008, 7:07pm UTC](https://www.ruby-forum.com/t/regexp-match-n-against-to-utf-8-string/127202/2 "2008-01-28T19:07:42Z")

</div>

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In message “[ruby-dev:33399] regexp match /…/n against to UTF-8  
string”  
on Jan.26,2008 12:02:23, [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:  
| e$B0J2\<$N$h$&$K!"$D$1$F$b$$$J$$@55,I=8=$Ne(B n e$B%_%W%7%g%s$K4X$7$Fe(B  
| e$B7Y9p$,=P$^$9!#e(B  
|  
| % ./ruby -ve '# -_- coding:us-ascii -\*-  
| /a/ = ~ “\xc2\x81”.force\_encoding(“utf-8”)  
| ’  
| ruby 1.9.0 (2008-01-26 revision 15248) [i686-linux]  
| -e:2: warning: regexp match /…/n against to UTF-8 string

e$BD\>$7$F$\_$^$7$?e(B(e$B$?$V$se(B)e$B!#e(B

e$BF1;~$K!“$I$&$J$C$FM\_$7$$$+$N%F%9%H$bDI2C$7$^$7$?!#e(B  
e$BDI2C$7$?%F%9%H$NCf$K\<:GT$9$kJ,$,$”$j$^$9$,!"e(B[ruby-dev:33400]  
e$B$GD\>$k$N$G$O$J$$$+$H4|BT$7$F$$$^$9!#e(B

e$B$=$l$G$O!#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:** [January 29, 2008, 1:20am UTC](https://www.ruby-forum.com/t/regexp-match-n-against-to-utf-8-string/127202/3 "2008-01-29T01:20:04Z")

</div>

In article [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid),  
“U.Nakamura” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes:

> e$BD\>$7$F$\_$^$7$?e(B(e$B$?$V$se(B)e$B!#e(B

e$BD\>$C$F$$$k46$8$G$9!#e(B

> e$BF1;~$K!“$I$&$J$C$FM\_$7$$$+$N%F%9%H$bDI2C$7$^$7$?!#e(B  
> e$BDI2C$7$?%F%9%H$NCf$K\<:GT$9$kJ,$,$”$j$^$9$,!"e(B[ruby-dev:33400]  
> e$B$GD\>$k$N$G$O$J$$$+$H4|BT$7$F$$$^$9!#e(B

[ruby-dev:33400] e$B$rE,MQ$7$?\>uBV$G;n$7$F$\_$^$7$?!#e(B

e$B$R$H$DH/@8$9$kNc30$,0c$&$H$3$m$rD\>$7$?$i!"e(B  
test/ruby/test\_m17n.rb e$B$O$-$l$$$KDL$k$h$&$K$J$j$^$7$?!#e(B

[ruby-dev:33400] e$B$OF~$l$?$$$s$G$9$,!“?75,%a%=%C%I$NDI2C$,I,e(B  
e$BMW$J$N$G!”$^$D$b$H$5$s$NN;2r$,M\_$7$$$H;W$C$F$$$^$9!#e(B

e$B$J$\*!“?75,e(B YARV e$BL?Na$K$9$l$P?75,%a%=%C%I$O$$$i$J$/$J$j!“Ev=ie(B  
e$B$O$=$l$r9M$($F$$$?$N$G$9$,!”$=$l$O$5$5$@$5$s$K;\_$a$i$l$?$H$$e(B  
e$B$&7P0^$,$”$j$^$9!#e(BJIT  
e$B$r$d$k$?$a$KL?Na$r8:$i$7$?$$$s$@$=$&$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:** [January 29, 2008, 6:58am UTC](https://www.ruby-forum.com/t/regexp-match-n-against-to-utf-8-string/127202/4 "2008-01-29T06:58:20Z")

</div>

e$B$3$s$K$A$O!"$J$+$`$ie(B(e$B$&e(B)e$B$G$9!#e(B

In message “[ruby-dev:33484] Re: regexp match /…/n against to UTF-8  
string”  
on Jan.29,2008 09:19:24, [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:  
| [ruby-dev:33400] e$B$rE,MQ$7$?\>uBV$G;n$7$F$\_$^$7$?!#e(B  
|  
| e$B$R$H$DH/@8$9$kNc30$,0c$&$H$3$m$rD\>$7$?$i!"e(B  
| test/ruby/test\_m17n.rb e$B$O$-$l$$$KDL$k$h$&$K$J$j$^$7$?!#e(B

e$B$“!\<!“e(BRegexpErrore$B$K$7$F$”$C$?$d$D$,!”$"$N%Q%C%A8e$O%3%s%Q%$%ke(B  
e$B;~$K8!=P$G$-$k$h$&$K$J$C$Fe(BSyntaxErrore$B$K$J$k$s$G$9$+$M!#e(B  
e$B$=$l$O$=$l$GG\<F@$G$9!#e(B

| [ruby-dev:33400] e$B$OF~$l$?$$$s$G$9$,!“?75,%a%=%C%I$NDI2C$,I,e(B  
| e$BMW$J$N$G!”$^$D$b$H$5$s$NN;2r$,M\_$7$$$H;W$C$F$$$^$9!#e(B

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

e$B$=$l$G$O!#e(B