Class: EPUB::Parser::Publication
- Inherits:
-
Object
- Object
- EPUB::Parser::Publication
show all
- Includes:
- Metadata
- Defined in:
- lib/epub/parser/publication.rb
Class Method Summary
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Instance Method Summary
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Methods included from Metadata
#build_model, #build_unsupported_model
Constructor Details
Returns a new instance of Publication.
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# File 'lib/epub/parser/publication.rb', line 20
def initialize(opf)
@doc = XMLDocument.new(opf)
end
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Class Method Details
.parse(container, file) ⇒ Object
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# File 'lib/epub/parser/publication.rb', line 13
def parse(container, file)
opf = container.read(Addressable::URI.unencode(file))
new(opf).parse
end
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Instance Method Details
#parse ⇒ Object
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# File 'lib/epub/parser/publication.rb', line 24
def parse
package = parse_package(@doc)
(EPUB::Publication::Package::CONTENT_MODELS - [:bindings]).each do |model|
package.__send__ "#{model}=", __send__("parse_#{model}", @doc)
end
package.bindings = parse_bindings(@doc, package.manifest)
package
end
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#parse_bindings(doc, handler_map) ⇒ Object
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# File 'lib/epub/parser/publication.rb', line 110
def parse_bindings(doc, handler_map)
bindings = EPUB::Publication::Package::Bindings.new
doc.each_element_by_xpath '/opf:package/opf:bindings/opf:mediaType', EPUB::NAMESPACES do |elem|
media_type = EPUB::Publication::Package::Bindings::MediaType.new
media_type.media_type = elem.attribute_with_prefix('media-type')
media_type.handler = handler_map[elem.attribute_with_prefix('handler')]
bindings << media_type
end
bindings
end
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#parse_guide(doc) ⇒ Object
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# File 'lib/epub/parser/publication.rb', line 96
def parse_guide(doc)
guide = EPUB::Publication::Package::Guide.new
doc.each_element_by_xpath '/opf:package/opf:guide/opf:reference', EPUB::NAMESPACES do |ref|
reference = EPUB::Publication::Package::Guide::Reference.new
%w[type title].each do |attr|
reference.__send__ "#{attr}=", ref.attribute_with_prefix(attr)
end
reference.href = ref.attribute_with_prefix('href')
guide << reference
end
guide
end
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#parse_manifest(doc) ⇒ Object
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# File 'lib/epub/parser/publication.rb', line 50
def parse_manifest(doc)
manifest = EPUB::Publication::Package::Manifest.new
elem = doc.each_element_by_xpath('/opf:package/opf:manifest', EPUB::NAMESPACES).first
manifest.id = elem.attribute_with_prefix('id')
fallback_map = {}
elem.each_element_by_xpath('./opf:item', EPUB::NAMESPACES).each do |e|
item = EPUB::Publication::Package::Manifest::Item.new
%w[id media-type media-overlay].each do |attr|
item.__send__ "#{attr.gsub(/-/, '_')}=", e.attribute_with_prefix(attr)
end
item.href = e.attribute_with_prefix('href')
fallback = e.attribute_with_prefix('fallback')
fallback_map[fallback] = item if fallback
properties = e.attribute_with_prefix('properties')
item.properties = properties.split(' ') if properties
manifest << item
end
fallback_map.each_pair do |id, from|
from.fallback = manifest[id]
end
manifest
end
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# File 'lib/epub/parser/publication.rb', line 46
def parse_metadata(doc)
super(doc.each_element_by_xpath('/opf:package/opf:metadata', EPUB::NAMESPACES).first, doc.root.attribute_with_prefix('unique-identifier'), 'opf')
end
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#parse_prefix(str) ⇒ Object
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# File 'lib/epub/parser/publication.rb', line 122
def parse_prefix(str)
prefixes = {}
return prefixes if str.nil? or str.empty?
scanner = StringScanner.new(str)
scanner.scan /\s*/
while prefix = scanner.scan(/[^\:\s]+/)
scanner.scan /[\:\s]+/
iri = scanner.scan(/[^\s]+/)
if iri.nil? or iri.empty?
warn "no IRI detected for prefix `#{prefix}`"
else
prefixes[prefix] = iri
end
scanner.scan /\s*/
end
prefixes
end
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#parse_spine(doc) ⇒ Object
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# File 'lib/epub/parser/publication.rb', line 75
def parse_spine(doc)
spine = EPUB::Publication::Package::Spine.new
elem = doc.each_element_by_xpath('/opf:package/opf:spine', EPUB::NAMESPACES).first
%w[id toc page-progression-direction].each do |attr|
spine.__send__ "#{attr.gsub(/-/, '_')}=", elem.attribute_with_prefix(attr)
end
elem.each_element_by_xpath('./opf:itemref', EPUB::NAMESPACES).each do |e|
itemref = EPUB::Publication::Package::Spine::Itemref.new
%w[idref id].each do |attr|
itemref.__send__ "#{attr}=", e.attribute_with_prefix(attr)
end
itemref.linear = (e.attribute_with_prefix('linear') != 'no')
properties = e.attribute_with_prefix('properties')
itemref.properties = properties.split(' ') if properties
spine << itemref
end
spine
end
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