+++ /dev/null
-This library is a simple RSS2 parser and RSS reader web
-application. To run the web application you'll need to make sure you
-have the sqlite library working. This can be tested with
-
- "contrib/sqlite" require
- "contrib/sqlite" test-module
-
-Remember that to use "sqlite" you need to have done the following
-somewhere:
-
- USE: alien
- "sqlite" "/usr/lib/libsqlite3.so" "cdecl" add-library
-
-Replacing "libsqlite3.so" with the path to the sqlite shared library
-or DLL. I put this in my ~/.factor-rc.
-
-The RSS reader web application creates a database file called
-'rss-reader.db' in the same directory as the Factor executable when
-first started. This database contains all the feed information.
-
-To load the web application use:
-
- "contrib/rss" require
-
-Fire up the web server and navigate to the URL:
-
- http://localhost:8888/responder/maintain-feeds
-
-Add any RSS2 compatible feed. Use 'Update Feeds' to retrieve them and
-update the sqlite database with the feed contains. Use 'Database' to
-view the entries from the database for that feed.
-
--- /dev/null
+USING: help.markup help.syntax io.streams.string strings urls
+calendar xml.data xml.writer present ;
+IN: syndication
+
+HELP: entry
+{ $description "An Atom or RSS feed entry. Has the following slots:"
+ { $table
+ { "Name" "Class" }
+ { "title" { $link string } }
+ { "url" { "any class supported by " { $link present } } }
+ { "description" { $link string } }
+ { "date" { $link timestamp } }
+ }
+} ;
+
+HELP: <entry>
+{ $values { "entry" entry } }
+{ $description "Creates a new entry." } ;
+
+HELP: feed
+{ $description "An Atom or RSS feed. Has the following slots:"
+ { $table
+ { "Name" "Class" }
+ { "title" { $link string } }
+ { "url" { "any class supported by " { $link present } } }
+ { "entries" { "a sequence of " { $link entry } " instances" } }
+ }
+} ;
+
+HELP: <feed>
+{ $values { "feed" feed } }
+{ $description "Creates a new feed." } ;
+
+HELP: download-feed
+{ $values { "url" url } { "feed" feed } }
+{ $description "Downloads a feed from a URL using the " { $link "http.client" } "." } ;
+
+HELP: string>feed
+{ $values { "string" string } { "feed" feed } }
+{ $description "Parses a feed in string form." } ;
+
+HELP: xml>feed
+{ $values { "xml" xml } { "feed" feed } }
+{ $description "Parses a feed in XML form." } ;
+
+HELP: feed>xml
+{ $values { "feed" feed } { "xml" xml } }
+{ $description "Converts a feed to Atom XML form." }
+{ $notes "The result of this word can then be passed to " { $link write-xml } ", or stored in an HTTP response object." } ;
+
+ARTICLE: "syndication" "Atom and RSS feed syndication"
+"The " { $vocab-link "syndication" } " vocabulary implements support for reading Atom and RSS feeds, and writing Atom feeds."
+$nl
+"Data types:"
+{ $subsection feed }
+{ $subsection <feed> }
+{ $subsection entry }
+{ $subsection <entry> }
+"Reading feeds:"
+{ $subsection download-feed }
+{ $subsection string>feed }
+{ $subsection xml>feed }
+"Writing feeds:"
+{ $subsection feed>xml }
+"The " { $vocab-link "furnace.syndication" } " vocabulary builds on top of this vocabulary to enable easy generation of Atom feeds from web applications. The " { $vocab-link "webapps.planet" } " vocabulary is a complete example of a web application which reads and exports feeds."
+{ $see-also "urls" } ;
+
+ABOUT: "syndication"
{ "feed" [ atom1.0 ] }
} case ;
-: read-feed ( string -- feed )
+: string>feed ( string -- feed )
[ string>xml xml>feed ] with-html-entities ;
: download-feed ( url -- feed )
#! Retrieve an news syndication file, return as a feed tuple.
- http-get nip read-feed ;
+ http-get nip string>feed ;
! Atom generation
: simple-tag, ( content name -- )