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author(no author) <(no author)@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2004-04-06 08:02:56 +0000
committer(no author) <(no author)@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2004-04-06 08:02:56 +0000
commit5923a2c0e770515a9c7144c50e09a32350695b00 (patch)
tree66882c2ac60d7d1b25bb49ee476cb829695aa906 /lib/rss/syndication.rb
parent8e773df6d3b68caf2e56e6c75a8e48bf2ccc1bd3 (diff)
This commit was manufactured by cvs2svn to create branch 'ruby_1_8'.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@6109 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib/rss/syndication.rb')
-rw-r--r--lib/rss/syndication.rb83
1 files changed, 83 insertions, 0 deletions
diff --git a/lib/rss/syndication.rb b/lib/rss/syndication.rb
new file mode 100644
index 0000000000..8c10688b57
--- /dev/null
+++ b/lib/rss/syndication.rb
@@ -0,0 +1,83 @@
+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 = []
+
+ def self.included(mod)
+ mod.module_eval(<<-EOC)
+ %w(updatePeriod updateFrequency).each do |x|
+ install_text_element("\#{SY_PREFIX}_\#{x}")
+ end
+
+ %w(updateBase).each do |x|
+ install_date_element("\#{SY_PREFIX}_\#{x}", 'w3cdtf', x)
+ 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
+ EOC
+ 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
+
+ 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
+
+ prefix_size = SY_PREFIX.size + 1
+ SyndicationModel::ELEMENTS.uniq!
+ SyndicationModel::ELEMENTS.each do |x|
+ BaseListener.install_get_text_element(x[prefix_size..-1], SY_URI, "#{x}=")
+ end
+
+end