class Mathtype::Converter
Attributes
builder[R]
parser[R]
version[R]
xml[R]
Public Class Methods
new(equation)
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# File lib/mathtype.rb, line 15 def initialize(equation) set_parser(equation) raise ::NotImplementedError, "Only .wmf and .bin (OLE.-Object) currently supported, name supplied: #{equation}" unless @parser.equation @version = @parser.equation[0].unpack('C')[0].to_i raise ::NotImplementedError, "Only MTEF Version 3 and 5 currently supported, version is #{version}" unless (version==3 or version==5) case @version when 3 data = Mathtype3::Equation.read(@parser.equation).snapshot when 5 data = Mathtype5::Equation.read(@parser.equation).snapshot end @builder = Nokogiri::XML::Builder.new do |xml| @xml = xml xml.root do process(object: data) end end end
Public Instance Methods
process(element: "mtef", object:)
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# File lib/mathtype.rb, line 46 def process(element: "mtef", object:) if object.is_a? Hash case @version when 3 name = Mathtype3::RECORD_NAMES[object[:record_type]] else name = Mathtype5::RECORD_NAMES[object[:record_type]] end if name xml.send(name) do (object[:payload] || {}).each do |k, v| process(element: k, object: v) end end else xml.send(element) do object.each do |k, v| process(element: k, object: v) end end end elsif object.is_a? Array object.each do |a| process(element: element, object: a) end else process_final_element(element, object) end end
process_final_element(element, object)
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# File lib/mathtype.rb, line 76 def process_final_element(element, object) if object.is_a? Hash xml.send(element, object) else xml.send(element) { xml.text object } end end
set_parser(equation)
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# File lib/mathtype.rb, line 34 def set_parser(equation) if equation.end_with?(".bin") @parser = Mathtype::OleFileParser.new equation else equation.end_with?(".wmf") @parser = Mathtype::WmfFileParser.new equation end end
to_xml()
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# File lib/mathtype.rb, line 42 def to_xml @builder.to_xml end