# \[Bug #2374\] URI.regexp('http') $B$,(B 'http://' $B$K%^%C%A$9$k(B

**URL:** <https://www.ruby-forum.com/t/bug-2374-uri-regexp-http-b-b-http-b-k-c-a-9-k-b/180921>\
**Category:** Development\
**Created:** [December 31, 2009, 5:33pm UTC](https://www.ruby-forum.com/t/bug-2374-uri-regexp-http-b-b-http-b-k-c-a-9-k-b/180921 "2009-12-31T17:33:59Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Yui\_NARUSE](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8edcca/32.png) [@Yui\_NARUSE](https://www.ruby-forum.com/u/Yui_NARUSE)\
**Post date:** [December 31, 2009, 5:33pm UTC](https://www.ruby-forum.com/t/bug-2374-uri-regexp-http-b-b-http-b-k-c-a-9-k-b/180921/1 "2009-12-31T17:33:59Z")

</div>

e$B%A%1%C%He(B #2374 e$B$,99?7$5$l$^$7$?!#e(B (by Yui NARUSE)

(2009/12/31 23:54), Tanaka A. wrote:

> 2009e$BG/e(B12e$B7ne(B31e$BF|e(B23:47 Yui NARUSE [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):
> 
> > URI e$B$r@55,I=8=$G%Q!\<%9$9$k$H$$$&H/A[\<+BN$K$=$b$=$b\<c43$NL5M}$,$"$k$h$&$K;W$&$N$G!"e(B  
> > URI.regexp e$B$Oe(B obsolete e$B$K$7$^$;$s$+e(B
> 
> e$BL5M}$H$$$&$N$O6qBNE\*$K$O$I$&$$$&OC$G$7$g$&!)e(B

e$B$^$:!"I,$:$7$b@55,I=8=$G$N%Q!\<%9$,2DG=$J;v$,J]\>Z$5$l$F$$$J$$;v$G$9!#e(B  
e$B\<B:]LdBj$H$7$F$O$?$$$F$$%Q!\<%92DG=$J$N$G$9$,!“e(B  
e$B$?$H$($Pe(B urn:isbn e$B$”$?$j$O$A$g$C$H2DG=$H$O8@$o$J$$$G$7$g$&!#e(B  
[http://www.din.or.jp/~ohzaki/regex.htm#ISBN](http://www.din.or.jp/~ohzaki/regex.htm#ISBN)

e$B\<!$K!“%9%-!\<%`$K$h$C$F@55,I=8=$NCf?H$r@Z$jBX$($kI,MW$,$"$kE@$G$9!#e(B e$B8=>u$G$b%9%-!<%`$rM?$($k;v$O$G$-$^$9$,!”$=$N7k2L$O$[$H$s$IJQ$o$j$^$;$s!#e(B  
e$BM}6~$N\>e$G$O$=$l$\>$l@Z$jBX$($k$h$&$KJQ$($l$P$$$$$H$b8@$($^$9$,!“e(B  
e$BD94|4V8=\>u$GJ|CV$5$l$F$-$?$H$$$&8=\<B$,$”$j$^$9!#e(B  
e$B8=\>u$O!"8DJL$N%9%-!\<%^$K$D$$$F8@$($P8m$C$?@55,I=8=$rDs6!$7$F$$$k$o$1$G!“e(B  
e$BM-32$G$”$k$h$&$K46$8$^$9!#e(B

e$B$5$i$K!"@55,I=8=$rJV$9$H$$$&e(B API e$B$O5,3J$N99?7$K\<e$$$G$9!#e(B  
URI e$BA4BN$K8@$($k;v$G$9$,!“FbIt\<BAu$rO\*=P$7$9$.$F$$$F!“e(B  
e$B5,3J$N99?7$KBP1~$7$E$i$/$J$C$F$$$^$9!#e(B  
URI.regexp e$B$N\>l9g!”\<hF@$7$?@55,I=8=$r%^%C%A$K;H$C$Fe(B $1  
e$B$H$+$r\<h$C$F$$$ke(B  
e$B$&$A$OLdBj$”$j$^$;$s$,!"e(BRegexp#source  
e$B$r8F$S;O$a$?=V4V8\_49@-$N3NJ]$,e(B  
e$B6K$a$F:$Fq$K$J$j$^$9!#e(B

e$B7k6I$N=j!“8=\>u$KLdBj$,$”$k$,!“LdBj$,$J$$\>uBV$r0];}$9$k$N$OBgJQ$G$”$j!“e(B  
e$BJQ$($k$H8\_49@-$KLdBj$,=P$k62$l$,$”$k$H$$$&$3$H$K$J$j$^$9!#e(B

e$B$G!"$o$?$7$N$3$l$X$NBP1~0F$H$7$F!"0J2\<$rDs0F$9$k$H$$$&;v$G$9!#e(B

- URI.regexp e$B$O8=\>u$r;EMM$H$7$F$$$8$i$J$$e(B
- e$BD94|E\*$K$Oe(B obsolete e$B$H$7$F!"$-$j$N$$$$$H$3$m$GGQ;\_e(B

* * *

[http://redmine.ruby-lang.org/issues/show/2374](http://redmine.ruby-lang.org/issues/show/2374)

---

<div class="post-metadata">

**Author:** ![Yui\_NARUSE](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8edcca/32.png) [@Yui\_NARUSE](https://www.ruby-forum.com/u/Yui_NARUSE)\
**Post date:** [January 1, 2010, 4:30am UTC](https://www.ruby-forum.com/t/bug-2374-uri-regexp-http-b-b-http-b-k-c-a-9-k-b/180921/2 "2010-01-01T04:30:04Z")

</div>

2010e$BG/e(B1e$B7ne(B1e$BF|e(B1:33 Yui NARUSE [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> e$B$^$:!"I,$:$7$b@55,I=8=$G$N%Q!\<%9$,2DG=$J;v$,J]\>Z$5$l$F$$$J$$;v$G$9!#e(B  
> e$B\<B:]LdBj$H$7$F$O$?$$$F$$%Q!\<%92DG=$J$N$G$9$,!“e(B  
> e$B$?$H$($Pe(B urn:isbn e$B$”$?$j$O$A$g$C$H2DG=$H$O8@$o$J$$$G$7$g$&!#e(B  
> [Perl正規表現雑技](http://www.din.or.jp/~ohzaki/regex.htm#ISBN)

e$B$Y$D$K40A4$G$J$/$F$bLr$KN)$F$P$$$$$s$8$c$J$$$G$9$+$M$'!#e(B  
e$B%F%-%9%H$NCf$+$ie(B URI  
e$B$rC5$7$?$$$C$F$$$&$N$O$$$+$K$b$"$j$=$&$JOC$G$9$7!#e(B

e$B$J$\*!"e(BISBN e$B$K$D$$$F$O54\<V$Ge(B \g  
e$B$r;H$($P$:$$$V$s$HC;$/$G$-$k$H;W$$$^$9!#e(B  
e$B$H$$$&$+!“e(BISBN e$B$Oe(B \g  
e$B$rMWK\>$7$?$H$-$K;H$C$?Nc$G$b$”$j$^$9!#e(B[ruby-dev:16732]

> e$B\<!$K!“%9%-!\<%`$K$h$C$F@55,I=8=$NCf?H$r@Z$jBX$($kI,MW$,$"$kE@$G$9!#e(B e$B8=>u$G$b%9%-!<%`$rM?$($k;v$O$G$-$^$9$,!”$=$N7k2L$O$[$H$s$IJQ$o$j$^$;$s!#e(B  
> e$BM}6~$N\>e$G$O$=$l$\>$l@Z$jBX$($k$h$&$KJQ$($l$P$$$$$H$b8@$($^$9$,!“e(B  
> e$BD94|4V8=\>u$GJ|CV$5$l$F$-$?$H$$$&8=\<B$,$”$j$^$9!#e(B  
> e$B8=\>u$O!"8DJL$N%9%-!\<%^$K$D$$$F8@$($P8m$C$?@55,I=8=$rDs6!$7$F$$$k$o$1$G!“e(B  
> e$BM-32$G$”$k$h$&$K46$8$^$9!#e(B

e$B@55,I=8=$G$O5-=R$G$-$J$$2DG=@-$r9M$($k$J$i$`$7$m$=$l$OI,A3E\*$J;EMM$J$N$G$Oe(B?  
URI.regexp e$B$O$_$_$6$C$Q$K\<h$j=P$7$F!“@5$7$$$+$I$&$+$O$5$i$Ke(B  
URI.parse e$B$G3NG’e(B  
e$B$9$kI,MW$,$”$k$N$G$7$g$&!#e(B

e$B$5$i$K$Oe(B uri e$B%i%$%V%i%j$,CN$i$J$$e(B scheme e$B$K$D$$$F$Oe(B  
URI.parse e$B$G$b3NG’$G$-$J$$e(B  
e$B$N$G!“$d$O$j40A4$K@5$7$$$+$I$&$+3NG’$9$k5!G=$rDs6!$9$k$H$$$&9M$($+$?\<+BN$KL5M}e(B  
e$B$,$”$k5$$,$7$^$9!#e(B

> e$B$5$i$K!"@55,I=8=$rJV$9$H$$$&e(B API e$B$O5,3J$N99?7$K\<e$$$G$9!#e(B  
> URI e$BA4BN$K8@$($k;v$G$9$,!“FbIt\<BAu$rO\*=P$7$9$.$F$$$F!“e(B  
> e$B5,3J$N99?7$KBP1~$7$E$i$/$J$C$F$$$^$9!#e(B  
> URI.regexp e$B$N\>l9g!”\<hF@$7$?@55,I=8=$r%^%C%A$K;H$C$Fe(B $1 e$B$H$+$r\<h$C$F$$$ke(B  
> e$B$&$A$OLdBj$”$j$^$;$s$,!"e(BRegexp#source e$B$r8F$S;O$a$?=V4V8\_49@-$N3NJ]$,e(B  
> e$B6K$a$F:$Fq$K$J$j$^$9!#e(B

URI.regexp e$B$O5,3J$G;H$C$F$$$kHs=\*C\<5-9f$NL\>A0$r;H$C$F$$$J$$$V$s!"e(B  
e$B$`$7$m5,3J$N99?7$K$O6/$$5$$,$7$^$9!#e(B

e$B$J$_!“e(Bsource  
e$B$r;H$C$FCf?H$rD4$Y$k$N$O$”$+$i$5$^$KL5J]\>Z$J46$8$,$7$^$9!#e(B  
e$B6qBNE_$K!“e(Bsource e$B$r;H$C$F$$$F!“e(BURI.regexp  
e$B$rJQ$($k$H:$$k$3$H$K$J$ke(B  
e$B%”%W%j%1!\<%7%g%s$C$F$”$k$s$G$9$+e(B?

> e$B7k6I$N=j!“8=\>u$KLdBj$,$”$k$,!“LdBj$,$J$$\>uBV$r0];}$9$k$N$OBgJQ$G$”$j!“e(B  
> e$BJQ$($k$H8\_49@-$KLdBj$,=P$k62$l$,$”$k$H$$$&$3$H$K$J$j$^$9!#e(B
> 
> e$B$G!"$o$?$7$N$3$l$X$NBP1~0F$H$7$F!"0J2\<$rDs0F$9$k$H$$$&;v$G$9!#e(B
> 
> - URI.regexp e$B$O8=\>u$r;EMM$H$7$F$$$8$i$J$$e(B
> - e$BD94|E\*$K$Oe(B obsolete e$B$H$7$F!"$-$j$N$$$$$H$3$m$GGQ;\_e(B

e$B$=$N\>l9g!“\<B:]$Ke(B URI.regexp  
e$B$r;H$C$F$$$k%”%W%j%1!\<%7%g%s$O$I$N$h$&$KJQ99$9$ke(B  
e$B$3$H$,?d\>)$5$l$k$s$G$9$+!)e(B

---

<div class="post-metadata">

**Author:** ![Yui\_NARUSE](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/y/8edcca/32.png) [@Yui\_NARUSE](https://www.ruby-forum.com/u/Yui_NARUSE)\
**Post date:** [January 1, 2010, 5:34pm UTC](https://www.ruby-forum.com/t/bug-2374-uri-regexp-http-b-b-http-b-k-c-a-9-k-b/180921/3 "2010-01-01T17:34:12Z")

</div>

(2010/01/01 12:29), Tanaka A. wrote:

> 2010e$BG/e(B1e$B7ne(B1e$BF|e(B1:33 Yui NARUSE [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):
> 
> > e$B$^$:!"I,$:$7$b@55,I=8=$G$N%Q!\<%9$,2DG=$J;v$,J]\>Z$5$l$F$$$J$$;v$G$9!#e(B  
> > e$B\<B:]LdBj$H$7$F$O$?$$$F$$%Q!\<%92DG=$J$N$G$9$,!“e(B  
> > e$B$?$H$($Pe(B urn:isbn e$B$”$?$j$O$A$g$C$H2DG=$H$O8@$o$J$$$G$7$g$&!#e(B  
> > [Perl正規表現雑技](http://www.din.or.jp/~ohzaki/regex.htm#ISBN)
> 
> e$B$Y$D$K40A4$G$J$/$F$bLr$KN)$F$P$$$$$s$8$c$J$$$G$9$+$M$'!#e(B  
> e$B%F%-%9%H$NCf$+$ie(B URI e$B$rC5$7$?$$$C$F$$$&$N$O$$$+$K$b$"$j$=$&$JOC$G$9$7!#e(B

e$B$U$`!“$=$l$G$O!”$3$l$OLr$KN)$D$N$+$J$!!"$H;W$C$F$$$?$N$G$9$,!"8e=R!#e(B

> e$B$J$\*!"e(BISBN e$B$K$D$$$F$O54\<V$Ge(B \g e$B$r;H$($P$:$$$V$s$HC;$/$G$-$k$H;W$$$^$9!#e(B  
> e$B$H$$$&$+!“e(BISBN e$B$Oe(B \g e$B$rMWK\>$7$?$H$-$K;H$C$?Nc$G$b$”$j$^$9!#e(B[ruby-dev:16732]

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

> > e$B\<!$K!“%9%-!\<%`$K$h$C$F@55,I=8=$NCf?H$r@Z$jBX$($kI,MW$,$"$kE@$G$9!#e(B e$B8=>u$G$b%9%-!<%`$rM?$($k;v$O$G$-$^$9$,!”$=$N7k2L$O$[$H$s$IJQ$o$j$^$;$s!#e(B  
> > e$BM}6~$N\>e$G$O$=$l$\>$l@Z$jBX$($k$h$&$KJQ$($l$P$$$$$H$b8@$($^$9$,!“e(B  
> > e$BD94|4V8=\>u$GJ|CV$5$l$F$-$?$H$$$&8=\<B$,$”$j$^$9!#e(B  
> > e$B8=\>u$O!"8DJL$N%9%-!\<%^$K$D$$$F8@$($P8m$C$?@55,I=8=$rDs6!$7$F$$$k$o$1$G!“e(B  
> > e$BM-32$G$”$k$h$&$K46$8$^$9!#e(B
> 
> e$B@55,I=8=$G$O5-=R$G$-$J$$2DG=@-$r9M$($k$J$i$`$7$m$=$l$OI,A3E\*$J;EMM$J$N$G$Oe(B?  
> URI.regexp e$B$O$_$_$6$C$Q$K\<h$j=P$7$F!“@5$7$$$+$I$&$+$O$5$i$Ke(B URI.parse e$B$G3NG’e(B  
> e$B$9$kI,MW$,$”$k$N$G$7$g$&!#e(B

e$B$J$k$[$I!#e(B  
e$B$=$NL\E\*$J$i$P!"e(BURI.scan(text, schemes) e$BEy$Ne(B API  
e$B$K$7$?\>e$G!“e(B  
RFC 3986 Appendix C. Delimiting a URI in Context  
e$B$K$”$k$h$&$J@^$jJV$7$Ne(B  
e$B9MN8$bI,MW$J5$$b$7$J$$$G$b$J$$$G$9$,!#e(B

> > e$B$5$i$K!"@55,I=8=$rJV$9$H$$$&e(B API e$B$O5,3J$N99?7$K\<e$$$G$9!#e(B  
> > URI e$BA4BN$K8@$($k;v$G$9$,!“FbIt\<BAu$rO\*=P$7$9$.$F$$$F!“e(B  
> > e$B5,3J$N99?7$KBP1~$7$E$i$/$J$C$F$$$^$9!#e(B  
> > URI.regexp e$B$N\>l9g!”\<hF@$7$?@55,I=8=$r%^%C%A$K;H$C$Fe(B $1 e$B$H$+$r\<h$C$F$$$ke(B  
> > e$B$&$A$OLdBj$”$j$^$;$s$,!"e(BRegexp#source e$B$r8F$S;O$a$?=V4V8\_49@-$N3NJ]$,e(B  
> > e$B6K$a$F:$Fq$K$J$j$^$9!#e(B
> 
> URI.regexp e$B$O5,3J$G;H$C$F$$$kHs=\*C\<5-9f$NL\>A0$r;H$C$F$$$J$$$V$s!"e(B  
> e$B$`$7$m5,3J$N99?7$K$O6/$$5$$,$7$^$9!#e(B

e$B2~$a$Fe(B URI.regexp e$B$Ne(B rdoc e$B$rFI$`$H!"e(B$1  
e$BEy$N;HMQ$OHs%5%]!\<%H$J$s$G$9$M!#e(B  
e$B$J$i$P!"5,3J$N99?7$K$O6/$$$G$9$M!#e(B