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extra/rss now works with some Atom 0.3 feeds

release
Daniel Ehrenberg 2007-12-05 21:00:52 -05:00
parent 9b69278b90
commit c2e2fb2304
1 changed files with 34 additions and 30 deletions
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64
extra/rss/rss.factor
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@ -9,6 +9,9 @@ USING: xml.utilities kernel assocs
: ?children>string ( tag/f -- string/f )
[ children>string ] [ f ] if* ;
: any-tag-named ( tag names -- tag-inside )
f -rot [ tag-named nip dup ] curry* find 2drop ;
TUPLE: feed title link entries ;
C: <feed> feed
@ -17,50 +20,51 @@ TUPLE: entry title link description pub-date ;
C: <entry> entry
: rss1.0-entry ( tag -- entry )
[ "title" tag-named children>string ] keep
[ "link" tag-named children>string ] keep
[ "description" tag-named children>string ] keep
f "date" "http://purl.org/dc/elements/1.1/" <name>
tag-named ?children>string
<entry> ;
: rss1.0 ( xml -- feed )
[
"channel" tag-named
[ "title" tag-named children>string ] keep
"link" tag-named children>string
] keep
"item" tags-named [
[ "title" tag-named children>string ] keep
[ "link" tag-named children>string ] keep
[ "description" tag-named children>string ] keep
f "date" "http://purl.org/dc/elements/1.1/" <name>
tag-named ?children>string
<entry>
] map <feed> ;
"item" tags-named [ rss1.0-entry ] map <feed> ;
: rss2.0-entry ( tag -- entry )
[ "title" tag-named children>string ] keep
[ "link" tag-named ] keep
[ "guid" tag-named dupd ? children>string ] keep
[ "description" tag-named children>string ] keep
"pubDate" tag-named children>string <entry> ;
: rss2.0 ( xml -- feed )
"channel" tag-named
[ "title" tag-named children>string ] keep
[ "link" tag-named children>string ] keep
"item" tags-named [
[ "title" tag-named children>string ] keep
[ "link" tag-named ] keep
[ "guid" tag-named dupd ? children>string ] keep
[ "description" tag-named children>string ] keep
"pubDate" tag-named children>string <entry>
] map <feed> ;
"item" tags-named [ rss2.0-entry ] map <feed> ;
: atom1.0-entry ( tag -- entry )
[ "title" tag-named children>string ] keep
[ "link" tag-named "href" swap at ] keep
[
{ "content" "summary" } any-tag-named
dup tag-children [ string? not ] contains?
[ tag-children [ write-chunk ] string-out ]
[ children>string ] if
] keep
{ "published" "updated" "issued" "modified" } any-tag-named
children>string <entry> ;
: atom1.0 ( xml -- feed )
[ "title" tag-named children>string ] keep
[ "link" tag-named "href" swap at ] keep
"entry" tags-named [
[ "title" tag-named children>string ] keep
[ "link" tag-named "href" swap at ] keep
[
dup "content" tag-named
[ nip ] [ "summary" tag-named ] if*
dup tag-children [ tag? ] contains?
[ tag-children [ write-chunk ] string-out ]
[ children>string ] if
] keep
dup "published" tag-named
[ nip ] [ "updated" tag-named ] if*
children>string <entry>
] map <feed> ;
"entry" tags-named [ atom1.0-entry ] map <feed> ;
: xml>feed ( xml -- feed )
dup name-tag {
@ -74,7 +78,7 @@ C: <entry> entry
: download-feed ( url -- feed )
#! Retrieve an news syndication file, return as a feed tuple.
http-get rot 200 = [
http-get-stream rot 200 = [
nip read-feed
] [
2drop "Error retrieving newsfeed file" throw