Class: Syndication::TagSoup
- Inherits:
-
Object
- Object
- Syndication::TagSoup
- Defined in:
- lib/syndication/tagsoup.rb
Overview
TagSoup is a tiny completely non-validating XML parser which implements the tag_start, tag_end and text methods of the REXML StreamListener interface.
It’s designed for permissive parsing of RSS and Atom feeds; using it for anything more complex (like HTML with CSS and JavaScript) is not advised.
Class Method Summary collapse
-
.parse_stream(data, listener) ⇒ Object
Parse data String and send events to listener.
Class Method Details
.parse_stream(data, listener) ⇒ Object
Parse data String and send events to listener
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# File 'lib/syndication/tagsoup.rb', line 16 def TagSoup.parse_stream(data, listener) data.scan(/(<\/[^>]*>|<[^>]*>|[^<>]*)/m) do |match| thing = match.first.strip if thing[0,1] == '<' # It's a tag_start or tag_end (tag,rest) = thing.match(/<\/?([^>\s]+)([^>]*)/)[1,2] if thing[1,1] == '/' listener.tag_end(tag) else # Parse the attr=val pairs pairs = Hash.new rest.scan(/([\w:]+)=("([^"]*)"|'([^']*)')/) {|a,j,v1,v2| if v1 == nil v = v2 else v = v1 end if a pairs[a] = v end } listener.tag_start(tag, pairs) # Tags with end tag build in, XML style if thing[-2,1] == '/' listener.tag_end(tag) end end else # It's text listener.text(CGI.unescapeHTML(thing)) end end end |