# Rdf generated by rss library is not valid

**URL:** <https://www.ruby-forum.com/t/rdf-generated-by-rss-library-is-not-valid/193458>\
**Category:** Development\
**Created:** [August 18, 2010, 2:34am UTC](https://www.ruby-forum.com/t/rdf-generated-by-rss-library-is-not-valid/193458 "2010-08-18T02:34:44Z")\
**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:** [August 18, 2010, 2:34am UTC](https://www.ruby-forum.com/t/rdf-generated-by-rss-library-is-not-valid/193458/1 "2010-08-18T02:34:44Z")

</div>

e$B$U$H!“e(Brss e$B%i%$%V%i%j$N%A%e!\<%H%j%”%k$Ne(B  
[http://www.cozmixng.org/~rwiki/?cmd=view;name=RSS+Parser%3A%3ATutorial.ja](http://www.cozmixng.org/~rwiki/?cmd=view;name=RSS+Parser%3A%3ATutorial.ja)  
e$B$K$"$C$?Nc$r0J2\<$N$h$&$KF0$+$7$F$\_$^$7$?!#e(B

% ruby -rrss -e ’  
rss = RSS::Maker.make(“1.0”) do |maker|  
maker.channel.about = “[http://example.com/index.rdf](http://example.com/index.rdf)”  
maker.channel.title = “Example”  
maker.channel.description = “Example Site”  
maker.channel.link = “[http://example.com/](http://example.com/)”

maker.items.new\_item do |item|  
item.link = “[http://example.com/article.html](http://example.com/article.html)”  
item.title = “Sample Article”  
end  
end  
puts rss  
’

\<?xml version="1.0" encoding="UTF-8"?\>

\<rdf:RDF xmlns=“[RDF Site Summary (RSS) 1.0](http://purl.org/rss/1.0/)”  
xmlns:rdf=“[http://www.w3.org/1999/02/22-rdf-syntax-ns#](http://www.w3.org/1999/02/22-rdf-syntax-ns#)”  
xmlns:content=“[RDF Site Summary 1.0 Modules: Content](http://purl.org/rss/1.0/modules/content/)”  
xmlns:dc=“[DCMI: DCMI Metadata Terms](http://purl.org/dc/elements/1.1/)”  
xmlns:image=“[http://purl.org/rss/1.0/modules/image/](http://purl.org/rss/1.0/modules/image/)”  
xmlns:slash=“[http://purl.org/rss/1.0/modules/slash/](http://purl.org/rss/1.0/modules/slash/)”  
xmlns:sy=“[RDF Site Summary 1.0 Modules: Syndication](http://purl.org/rss/1.0/modules/syndication/)”  
xmlns:taxo=“[http://purl.org/rss/1.0/modules/taxonomy/](http://purl.org/rss/1.0/modules/taxonomy/)”  
xmlns:trackback=“[http://madskills.com/public/xml/rss/module/trackback/](http://madskills.com/public/xml/rss/module/trackback/)”\>  
  
Example  
[http://example.com/](http://example.com/)  
Example Site  
  
rdf:Seq  
\<rdf:li resource=“[http://example.com/article.html](http://example.com/article.html)”/\>  
\</rdf:Seq\>  
  
  
  
Sample Article  
[http://example.com/article.html](http://example.com/article.html)  
  
\</rdf:RDF\>

e$B$3$Ne(B RDF e$B$Je(B RSS e$B$re(B  
[W3C RDF Validation Service](http://www.w3.org/RDF/Validator/)  
e$B$KF~$l$F$\_$?$H$3$m!“e(B  
Error: {W102} unqualified use of rdf:resource is deprecated.[Line =  
17, Column = 61]  
e$B$H$$$&%(%i!\<$,=P$F$-$?$s$G$9$,!”$3$l$O0U?^$5$l$?7k2L$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:** [August 18, 2010, 2:12pm UTC](https://www.ruby-forum.com/t/rdf-generated-by-rss-library-is-not-valid/193458/2 "2010-08-18T14:12:28Z")

</div>

e$B?\F#$G$9!#e(B

In [AANLkTimsZ=removed\_email\_address@domain.invalid](mailto:AANLkTimsZ=removed_email_address@domain.invalid)  
“[ruby-dev:42057] rdf generated by rss library is not valid” on Wed,  
18 Aug 2010 09:34:23 +0900,  
Tanaka A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> e$B$U$H!“e(Brss e$B%i%$%V%i%j$N%A%e!\<%H%j%”%k$Ne(B  
> [http://www.cozmixng.org/~rwiki/?cmd=view;name=RSS+Parser%3A%3ATutorial.ja](http://www.cozmixng.org/~rwiki/?cmd=view;name=RSS+Parser%3A%3ATutorial.ja)  
> e$B$K$"$C$?Nc$r0J2\<$N$h$&$KF0$+$7$F$\_$^$7$?!#e(B

> Sample Article http://example.com/article.html 
> 
> e$B$3$Ne(B RDF e$B$Je(B RSS e$B$re(B  
> [W3C RDF Validation Service](http://www.w3.org/RDF/Validator/)  
> e$B$KF~$l$F$\_$?$H$3$m!“e(B  
> Error: {W102} unqualified use of rdf:resource is deprecated.[Line =  
> 17, Column = 61]  
> e$B$H$$$&%(%i!\<$,=P$F$-$?$s$G$9$,!”$3$l$O0U?^$5$l$?7k2L$G$7$g$&$+!#e(B

e$B$O$$!#e(B  
RDF(_1)e$BE_$K$Oe(Brdf:resourcee$B$J$N$G$9$,!"e(BRSS  
1.0e$B$N;EMM=qe(B(\*2)e$B$G$Oe(Bresource  
e$B$r;H$C$F$$$^$9!#e(BRSS  
Makere$B$Oe(BRSSe$B$r@8@.$9$k%i%$%V%i%j$J$N$G!"e(B  
RSS 1.0e$B$N;EMM$NJ}$KE]$7$F$$$^$9!#e(B

(\*1)  
[http://www.w3.org/TR/rdf-syntax-grammar/#section-Syntax-list-elements](http://www.w3.org/TR/rdf-syntax-grammar/#section-Syntax-list-elements)  
(\*2) [RDF Site Summary (RSS) 1.0](http://web.resource.org/rss/1.0/spec#s5.3.5)

e$B$A$J$\_$K!"e(BRSS  
1.0e$B$r%Q!\<%9$9$k\>l9g$Oe(Bresourcee$B$G$be(Brdf:resource  
e$B$G$b\<u$1IU$1$k$h$&$K$J$C$F$$$^$9!#e(B

e$B$H$3$m$G!"$b$7$h$+$C$?$i!"e(BRSS 1.0e$B$N%P%j%G!\<%7%g%s$Ke(BAtom/RSS  
e$BMQ$N%P%j%G!\<%7%g%s%5!\<%S%9e(B  
[W3C Feed Validation Service, for Atom and RSS](http://validator.w3.org/feed/)  
e$B$G$O$J$/!“e(BRDFe$B$N%P%j%G!\<%7%g%s%5!\<%S%9$r;H$C$?M}M3$r65$($F$be(B  
e$B$i$($J$$$G$7$g$&$+!#LdBj$,$”$C$?\>l9g$Oe(BRSSe$BMQ$N%P%j%G!\<%7%g%se(B  
e$B%5!\<%S%9$NJ}$,$h$j\>:Y$J\>pJs$rJs9p$7$F$/$l$=$&$J5$$,$7$^$9!#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:** [August 18, 2010, 2:28pm UTC](https://www.ruby-forum.com/t/rdf-generated-by-rss-library-is-not-valid/193458/3 "2010-08-18T14:28:52Z")

</div>

2010e$BG/e(B8e$B7ne(B18e$BF|e(B21:12 Kouhei S. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid):

> e$B$O$$!#e(B  
> RDF(_1)e$BE_$K$Oe(Brdf:resourcee$B$J$N$G$9$,!"e(BRSS 1.0e$B$N;EMM=qe(B(\*2)e$B$G$Oe(Bresource  
> e$B$r;H$C$F$$$^$9!#e(BRSS Makere$B$Oe(BRSSe$B$r@8@.$9$k%i%$%V%i%j$J$N$G!"e(B  
> RSS 1.0e$B$N;EMM$NJ}$KE]$7$F$$$^$9!#e(B
> 
> (\*1) [RDF 1.1 XML Syntax](http://www.w3.org/TR/rdf-syntax-grammar/#section-Syntax-list-elements)  
> (\*2) [RDF Site Summary (RSS) 1.0](http://web.resource.org/rss/1.0/spec#s5.3.5)
> 
> e$B$A$J$\_$K!"e(BRSS 1.0e$B$r%Q!\<%9$9$k\>l9g$Oe(Bresourcee$B$G$be(Brdf:resource  
> e$B$G$b\<u$1IU$1$k$h$&$K$J$C$F$$$^$9!#e(B

e$B$J$k$[$I!#e(BRSS 1.0 e$B$N;EMM=q$Ne(B Syntax e$B$G$Oe(B resource  
e$B$r;H$C$F$$$^$9$M!#e(B  
rdf:Seq\<rdf:li resource=“{item\_uri}” /\> …  
\</rdf:Seq\>

e$B$7$+$7!“@bL@$NJ8$G$Oe(B rdf:resource  
e$B$r;H$C$F$$$F!”;EMM\<+BN$,0l4S$7$F$$$J$$e(B  
e$B$h$&$K;W$($^$9!#e(B  
Each item’s rdf:resource {item\_uri} must be …

> e$B$H$3$m$G!"$b$7$h$+$C$?$i!"e(BRSS 1.0e$B$N%P%j%G!\<%7%g%s$Ke(BAtom/RSS  
> e$BMQ$N%P%j%G!\<%7%g%s%5!\<%S%9e(B  
> [W3C Feed Validation Service, for Atom and RSS](http://validator.w3.org/feed/)  
> e$B$G$O$J$/!“e(BRDFe$B$N%P%j%G!\<%7%g%s%5!\<%S%9$r;H$C$?M}M3$r65$($F$be(B  
> e$B$i$($J$$$G$7$g$&$+!#LdBj$,$”$C$?\>l9g$Oe(BRSSe$BMQ$N%P%j%G!\<%7%g%se(B  
> e$B%5!\<%S%9$NJ}$,$h$j\>:Y$J\>pJs$rJs9p$7$F$/$l$=$&$J5$$,$7$^$9!#e(B

e$B8+$D$1$?$b$N$r;H$C$?$@$1$GFCCJ$NM}M3$O2?$b!#e(B  
RSSe$BMQ$N$b;H$C$F$$$^$9!#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:** [August 18, 2010, 3:02pm UTC](https://www.ruby-forum.com/t/rdf-generated-by-rss-library-is-not-valid/193458/4 "2010-08-18T15:02:14Z")

</div>

e$B?\F#$G$9!#e(B

In [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
“[ruby-dev:42074] Re: rdf generated by rss library is not valid” on  
Wed, 18 Aug 2010 21:28:20 +0900,  
Tanaka A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> e$B$7$+$7!“@bL@$NJ8$G$Oe(B rdf:resource e$B$r;H$C$F$$$F!”;EMM\<+BN$,0l4S$7$F$$$J$$e(B  
> e$B$h$&$K;W$($^$9!#e(B  
> Each item’s rdf:resource {item\_uri} must be …

e$B$O$$!"$=$&$J$s$G$9$,!"F1$8%Z!\<%8Fb$N%5%s%W%k$G$b0l4S$7$Fe(B  
resourcee$B$r;H$C$F$$$k$N$G$=$A$i$,0U?^$7$?$b$N$@$H2r\<a$7$F$$$^e(B  
e$B$9!#e(B

> > e$B$H$3$m$G!"$b$7$h$+$C$?$i!"e(BRSS 1.0e$B$N%P%j%G!\<%7%g%s$Ke(BAtom/RSS  
> > e$BMQ$N%P%j%G!\<%7%g%s%5!\<%S%9e(B  
> > [W3C Feed Validation Service, for Atom and RSS](http://validator.w3.org/feed/)  
> > e$B$G$O$J$/!“e(BRDFe$B$N%P%j%G!\<%7%g%s%5!\<%S%9$r;H$C$?M}M3$r65$($F$be(B  
> > e$B$i$($J$$$G$7$g$&$+!#LdBj$,$”$C$?\>l9g$Oe(BRSSe$BMQ$N%P%j%G!\<%7%g%se(B  
> > e$B%5!\<%S%9$NJ}$,$h$j\>:Y$J\>pJs$rJs9p$7$F$/$l$=$&$J5$$,$7$^$9!#e(B
> 
> e$B8+$D$1$?$b$N$r;H$C$?$@$1$GFCCJ$NM}M3$O2?$b!#e(B  
> RSSe$BMQ$N$b;H$C$F$$$^$9!#e(B

e$B$=$&$G$9$+!#$"$j$,$H$&$4$6$$$^$7$?!#e(B