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module Mime
class Type
class << self
def lookup(string)
LOOKUP[string]
end
def parse(accept_header)
mime_types = accept_header.split(",").collect! do |mime_type|
mime_type.split(";").first.strip
end
reorder_xml_types!(mime_types)
mime_types.collect! { |mime_type| Mime::Type.lookup(mime_type) }
end
private
def reorder_xml_types!(mime_types)
mime_types.delete("text/xml") if mime_types.include?("application/xml")
if index_for_generic_xml = mime_types.index("application/xml")
specific_xml_types = mime_types[index_for_generic_xml..-1].grep(/application\/[a-z]*\+xml/)
for specific_xml_type in specific_xml_types.reverse
mime_types.insert(index_for_generic_xml, mime_types.delete(specific_xml_type))
end
end
end
end
def initialize(string, symbol = nil, synonyms = [])
@symbol, @synonyms = symbol, synonyms
@string = string
end
def to_s
@string
end
def to_str
to_s
end
def to_sym
@symbol || to_sym
end
def ===(list)
if list.is_a?(Array)
(@synonyms + [ self ]).any? { |synonym| list.include?(synonym) }
else
super
end
end
def ==(mime_type)
(@synonyms + [ self ]).any? { |synonym| synonym.to_s == mime_type.to_s } if mime_type
end
end
ALL = Type.new "*/*", :all
HTML = Type.new "text/html", :html, %w( application/xhtml+xml )
JS = Type.new "text/javascript", :js, %w( application/javascript application/x-javascript )
XML = Type.new "application/xml", :xml, %w( text/xml application/x-xml )
RSS = Type.new "application/rss+xml", :rss
ATOM = Type.new "application/atom+xml", :atom
YAML = Type.new "application/x-yaml", :yaml
LOOKUP = Hash.new { |h, k| h[k] = Type.new(k) }
LOOKUP["*/*"] = ALL
LOOKUP["text/html"] = HTML
LOOKUP["application/xhtml+xml"] = HTML
LOOKUP["application/xml"] = XML
LOOKUP["text/xml"] = XML
LOOKUP["application/x-xml"] = XML
LOOKUP["text/javascript"] = JS
LOOKUP["application/javascript"] = JS
LOOKUP["application/x-javascript"] = JS
LOOKUP["application/rss+xml"] = RSS
LOOKUP["application/atom+xml"] = ATOM
LOOKUP["application/x-yaml"] = YAML
end
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