"OPML an XML-based format that allows exchange of outline-structured information between applications running on different operating systems and environments.
The design goal is to have a transparently simple, self-documenting, extensible and human readable format that‘s capable of representing a wide variety of data that‘s easily browsed and edited. As the format evolves this goal will be preserved. It should be possible for a reasonably technical person to fully understand the format with a quick read of a single Web page.
"
以上是來自O(shè)PML官方網(wǎng)站的解釋。OPML(Outline Processor Markup Language)其實(shí)建立在XML基礎(chǔ)上的“大綱處理標(biāo)記語言”，主要用于描述一份資料的結(jié)構(gòu)，這份資料可能是計(jì)劃書、黃頁的目錄，甚至是MP3的播放清單。如果每個(gè)軟件可以遵循OPML的格式對(duì)所處理資料輸入、輸出，那這些信息就可以在不同系統(tǒng)不同軟件之間傳遞，使不同軟件實(shí)現(xiàn)直接“對(duì)話”。
家里的電腦出了問題，RSSbandit不能啟動(dòng)，很是傷腦筋。沒辦法，feeddemon剛剛有1.0 final trial版本出來，先用著把，30次使用限制，每天一次，至少也可以用一個(gè)人了。
其實(shí)OPML也不是什么復(fù)雜東西，裝好feeddemon以后，找了份里面的opml文件來看。其實(shí)就是一份格式化的xml文化，用來記錄網(wǎng)站rss新聞的一個(gè)xml集合。
樣式如下
<?xml version="1.0"?>
<opml version="1.1" xmlns:fd="http://www.bradsoft.com/feeddemon/xmlns/1.0/">
<head>
<title>Technology</title>
</head>
<body>
<outline text="Ars Technica" title="Ars Technica" type="rss" version="RSS" xmlUrl="http://arstechnica.com/etc/rdf/ars.rdf" htmlUrl="http://www.arstechnica.com" description="Ars Technica"/>
<outline text="BBC News | Technology | UK Edition" title="BBC News | Technology | UK Edition" type="rss" version="RSS" xmlUrl="http://www.bbc.co.uk/syndication/feeds/news/ukfs_news/technology/rss091.xml" htmlUrl="http://news.bbc.co.uk/go/click/rss/0.91/public/-/1/hi/technology/default.stm" description="BBC News | Technology | UK Edition"/>
<outline text="Clay Shirky's Essays" title="Clay Shirky's Essays" type="rss" version="RSS" xmlUrl="http://shirky.com/writings/rss.cgi" htmlUrl="http://shirky.com/writings/rss.cgi" description="Clay Shirky's Essays"/>
<outline text="Creative Commons: weblog" title="Creative Commons: weblog" type="rss" version="RSS" xmlUrl="http://creativecommons.org/weblog/rss" htmlUrl="http://creativecommons.org/weblog/" description="Creative Commons: weblog"/>
<outline text="Dan Gillmor's eJournal" title="Dan Gillmor's eJournal" type="rss" version="RSS" xmlUrl="http://weblog.siliconvalley.com/column/dangillmor/index.xml" htmlUrl="http://weblog.siliconvalley.com/column/dangillmor/" description="Dan Gillmor's eJournal"/>
<outline text="Extremetech" title="Extremetech" type="rss" version="RSS" xmlUrl="http://rssnewsapps.ziffdavis.com/extreme.xml" htmlUrl="http://www.extremetech.com" description="Extremetech"/>
<outline text="Geek News Central" title="Geek News Central" type="rss" version="RSS" xmlUrl="http://www.geeknewscentral.com/index.xml" htmlUrl="http://www.geeknewscentral.com/" description="Geek News Central"/>
<outline text="InfoWorld: Top News" title="InfoWorld: Top News" type="rss" version="RSS" xmlUrl="http://www.infoworld.com/rss/news.rdf" htmlUrl="http://www.infoworld.com/news/index.html" description="InfoWorld: Top News"/>
<outline text="Jeremy Allaire's Radio" title="Jeremy Allaire's Radio" type="rss" version="RSS" xmlUrl="http://radio.weblogs.com/0113297/rss.xml" description="Jeremy Allaire's Radio"/>
<outline text="Jon Udell: InfoWorld" title="Jon Udell: InfoWorld" type="rss" version="RSS" xmlUrl="http://weblog.infoworld.com/udell/categories/infoworld/rss.xml" htmlUrl="http://weblog.infoworld.com/udell/categories/infoworld/" description="Jon Udell: InfoWorld"/>
<outline text="Lessig News" title="Lessig News" type="rss" version="RSS" xmlUrl="http://lessig.org/index.rdf" htmlUrl="http://cyberlaw.stanford.edu/lessig/" description="Columns, interviews, relevant articles, news on Lessig."/>
<outline text="Microsoft Watch from Mary Jo Foley" title="Microsoft Watch from Mary Jo Foley" type="rss" version="RSS" xmlUrl="http://rssnewsapps.ziffdavis.com/msw.xml" htmlUrl="http://www.microsoft-watch.com" description="What's next for Microsoft? Find out first with exclusive news and analysis from Mary Jo Foley and Microsoft Watch."/>
<outline text="New York Times: Technology" title="New York Times: Technology" type="rss" version="RSS" xmlUrl="http://partners.userland.com/nytRss/technology.xml" htmlUrl="http://www.nytimes.com/pages/technology/index.html" description="New York Times: Technology"/>
<outline text="SiliconInsider" title="SiliconInsider" type="rss" version="RSS" xmlUrl="http://my.abcnews.go.com/rsspublic/siliconinsider_rss093.xml" description="SiliconInsider"/>
<outline text="The Doc Searls Weblog" title="The Doc Searls Weblog" type="rss" version="RSS" xmlUrl="http://partners.userland.com/people/docSearls.xml" htmlUrl="http://doc.weblogs.com/" description="The Continuing End of Business As Usual"/>
<outline text="The Register" title="The Register" type="rss" version="RSS" xmlUrl="http://www.theregister.co.uk/tonys/slashdot.rdf" htmlUrl="http://www.theregister.co.uk" description="The Register"/>
<outline text="Tomalak's Realm" title="Tomalak's Realm" type="rss" version="RSS" xmlUrl="http://static.userland.com/tomalak/links2.xml" htmlUrl="http://www.tomalak.org/" description="Tomalak's Realm"/>
</body>
</opml>
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