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author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2004-01-28 03:46:13 +0000 |
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committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2004-01-28 03:46:13 +0000 |
commit | 8640f16308dce0b013af0470b926956e676ccc1a (patch) | |
tree | 6262080bde1c6376c96bdc05d2a6692bd9de6818 /lib/rss/syndication.rb | |
parent | 51e6d9061dc8090bd1c9e3a1a8dadbbd9294a48d (diff) | |
download | ruby-8640f16308dce0b013af0470b926956e676ccc1a.tar.gz |
* lib/rss: rss library imported. [ruby-dev:22726]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5566 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib/rss/syndication.rb')
-rw-r--r-- | lib/rss/syndication.rb | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/lib/rss/syndication.rb b/lib/rss/syndication.rb new file mode 100644 index 0000000000..74bfbac8e1 --- /dev/null +++ b/lib/rss/syndication.rb @@ -0,0 +1,81 @@ +require "rss/1.0" + +module RSS + + SY_PREFIX = 'sy' + SY_URI = "http://purl.org/rss/1.0/modules/syndication/" + + RDF.install_ns(SY_PREFIX, SY_URI) + + module SyndicationModel + + extend BaseModel + + ELEMENTS = [] + + %w(updatePeriod updateFrequency).each do |x| + install_text_element("#{SY_PREFIX}_#{x}") + end + + %w(updateBase).each do |x| + install_date_element("#{SY_PREFIX}_#{x}", 'iso8601', x) + end + + def sy_validate(tags) + counter = {} + ELEMENTS.each do |x| + counter[x] = 0 + end + + tags.each do |tag| + key = "#{SY_PREFIX}_#{tag}" + raise UnknownTagError.new(tag, SY_URI) unless counter.has_key?(key) + counter[key] += 1 + raise TooMuchTagError.new(tag, tag_name) if counter[key] > 1 + end + end + + + alias_method(:_sy_updatePeriod=, :sy_updatePeriod=) + def sy_updatePeriod=(new_value) + new_value = new_value.strip + validate_sy_updatePeriod(new_value) if @do_validate + self._sy_updatePeriod = new_value + end + + alias_method(:_sy_updateFrequency=, :sy_updateFrequency=) + def sy_updateFrequency=(new_value) + new_value = new_value.strip + validate_sy_updateFrequency(new_value) if @do_validate + self._sy_updateFrequency = new_value.to_i + end + + private + SY_UPDATEPERIOD_AVAILABLE_VALUES = %w(hourly daily weekly monthly yearly) + def validate_sy_updatePeriod(value) + unless SY_UPDATEPERIOD_AVAILABLE_VALUES.include?(value) + raise NotAvailableValueError.new("updatePeriod", value) + end + end + + SY_UPDATEFREQUENCY_AVAILABLE_RE = /\A\s*\+?\d+\s*\z/ + def validate_sy_updateFrequency(value) + if SY_UPDATEFREQUENCY_AVAILABLE_RE !~ value + raise NotAvailableValueError.new("updateFrequency", value) + end + end + + end + + class RDF + class Channel; include SyndicationModel; end + end + + if const_defined? :BaseListener + prefix_size = SY_PREFIX.size + 1 + SyndicationModel::ELEMENTS.each do |x| + BaseListener.install_get_text_element(x[prefix_size..-1], SY_URI, "#{x}=") + end + end + +end |