Module: Asciidoctor::Standoc::Utils

Included in:
Converter
Defined in:
lib/asciidoctor/standoc/utils.rb

Defined Under Namespace

Classes: EmptyAttr

Constant Summary collapse

NOKOHEAD = 
<<~HERE.freeze
    <!DOCTYPE html SYSTEM
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head> <title></title> <meta charset="UTF-8" /> </head>
    <body> </body> </html>
HERE
SUBCLAUSE_XPATH = 
"//clause[not(parent::sections)]"\
"[not(ancestor::boilerplate)]".freeze

Instance Method Summary collapse

Instance Method Details

#attr_code(attributes) ⇒ Object 



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# File 'lib/asciidoctor/standoc/utils.rb', line 44

def attr_code(attributes)
  attributes = attributes.reject { |_, val| val.nil? }.map
  attributes.map do |k, v|
    [k, (v.is_a? String) ? HTMLEntities.new.decode(v) : v]
  end.to_h
end

#convert(node, transform = nil, opts = {}) ⇒ Object 



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# File 'lib/asciidoctor/standoc/utils.rb', line 13

def convert(node, transform = nil, opts = {})
  transform ||= node.node_name
  opts.empty? ? (send transform, node) : (send transform, node, opts)
end

#datauri2mime(uri) ⇒ Object 



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# File 'lib/asciidoctor/standoc/utils.rb', line 60

def datauri2mime(uri)
  %r{^data:image/(?<imgtype>[^;]+);base64,(?<imgdata>.+)$} =~ uri
  type = nil
  imgtype = "png" unless /^[a-z0-9]+$/.match imgtype
  Tempfile.open(["imageuri", ".#{imgtype}"]) do |file|
    type = datauri2mime1(file, imgdata)
  end
  [type]
end

#datauri2mime1(file, imgdata) ⇒ Object 



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# File 'lib/asciidoctor/standoc/utils.rb', line 70

def datauri2mime1(file, imgdata)
  type = nil
  begin
    file.binmode
    file.write(Base64.strict_decode64(imgdata))
    file.rewind
    type = MimeMagic.by_magic(file)
  ensure
    file.close!
  end
  type
end

#document_ns_attributes(_doc) ⇒ Object 



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# File 'lib/asciidoctor/standoc/utils.rb', line 18

def document_ns_attributes(_doc)
  nil
end

#isodoc(lang, script, i18nyaml = nil) ⇒ Object 



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# File 'lib/asciidoctor/standoc/utils.rb', line 86

def isodoc(lang, script, i18nyaml = nil)
  conv = html_converter(EmptyAttr.new)
  i18n = conv.i18n_init(lang, script, i18nyaml)
  conv.metadata_init(lang, script, i18n)
  conv
end

#noko(&block) ⇒ Object

block for processing XML document fragments as XHTML, to allow for HTMLentities Unescape special chars used in Asciidoctor substitution processing



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# File 'lib/asciidoctor/standoc/utils.rb', line 33

def noko(&block)
  doc = ::Nokogiri::XML.parse(NOKOHEAD)
  fragment = doc.fragment("")
  ::Nokogiri::XML::Builder.with fragment, &block
  fragment.to_xml(encoding: "US-ASCII", indent: 0).lines.map do |l|
    l.gsub(/>\n$/, ">").gsub(/\s*\n$/m, " ").gsub("&#150;", "\u0096").
      gsub("&#151;", "\u0097").gsub("&#x96;", "\u0096").
      gsub("&#x97;", "\u0097")
  end
end

#wrap_in_para(node, out) ⇒ Object

if the contents of node are blocks, output them to out; else, wrap them in <p>



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# File 'lib/asciidoctor/standoc/utils.rb', line 53

def wrap_in_para(node, out)
  if node.blocks? then out << node.content
  else
    out.p { |p| p << node.content }
  end
end