Class: Metanorma::Compile

Inherits:
Object
  • Object
show all
Defined in:
lib/metanorma/compile.rb,
lib/metanorma/extract.rb,
lib/metanorma/sectionsplit.rb,
lib/metanorma/compile_options.rb,
lib/metanorma/compile_validate.rb

Constant Summary collapse

REQUIREMENT_XPATH = 
"//requirement | //xmlns:requirement | //recommendation | "\
"//xmlns:recommendation | //permission | //xmlns:permission".freeze
SPLITSECTIONS = 
[["//preface/*", "preface"], ["//sections/*", "sections"],
["//annex", nil],
["//bibliography/*[not(@hidden = 'true')]", "bibliography"],
["//indexsect", nil]].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Compile

Returns a new instance of Compile.



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# File 'lib/metanorma/compile.rb', line 20

def initialize
  @registry = Metanorma::Registry.instance
  @errors = []
  @isodoc = IsoDoc::Convert.new({})
  @fontist_installed = false
end

Instance Attribute Details

#errors ⇒ Array<String> (readonly)

Returns:

  • (Array<String>) 


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# File 'lib/metanorma/compile.rb', line 18

def errors
  @errors
end

#processor ⇒ Array<String> (readonly)

Returns:

  • (Array<String>) 


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# File 'lib/metanorma/compile.rb', line 18

def processor
  @processor
end

Instance Method Details

#build_collection(xml, presxml, filename, dir, opts = {}) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 22

def build_collection(xml, presxml, filename, dir, opts = {})
  base = File.basename(filename)
  collection_setup(base, dir)
  files = sectionsplit(xml, base, dir)
  collection_manifest(base, files, xml, presxml, dir).render(
    { format: %i(html), output_folder: "#{filename}_collection",
      coverpage: File.join(dir, "cover.html") }.merge(opts),
  )
end

#clean_sourcecode(xml) ⇒ Object 



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# File 'lib/metanorma/extract.rb', line 13

def clean_sourcecode(xml)
  xml.xpath(".//callout | .//annotation | .//xmlns:callout | "\
            ".//xmlns:annotation").each(&:remove)
  xml.xpath(".//br | .//xmlns:br").each { |x| x.replace("\n") }
  HTMLEntities.new.decode(xml.children.to_xml)
end

#coll_cover ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 47

def coll_cover
  <<~COVER
    <html><head/>
        <body>
          <h1>{{ doctitle }}</h1>
          <h2>{{ docnumber }}</h2>
          <nav>{{ labels["navigation"] }}</nav>
        </body>
    </html>
  COVER
end

#collection_manifest(filename, files, origxml, _presxml, dir) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 32

def collection_manifest(filename, files, origxml, _presxml, dir)
  File.open(File.join(dir, "#{filename}.html.yaml"), "w:UTF-8") do |f|
    f.write(collectionyaml(files, origxml))
  end
  Metanorma::Collection.parse File.join(dir, "#{filename}.html.yaml")
end

#collection_setup(filename, dir) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 39

def collection_setup(filename, dir)
  FileUtils.mkdir_p "#{filename}_collection" if filename
  FileUtils.mkdir_p dir
  File.open(File.join(dir, "cover.html"), "w:UTF-8") do |f|
    f.write(coll_cover)
  end
end

#collectionyaml(files, xml) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 230

def collectionyaml(files, xml)
  ret = {
    directives: ["presentation-xml", "bare-after-first"],
    bibdata: {
      title: {
        type: "title-main", language: @lang,
        content: xml.at(ns("//bibdata/title")).text
      },
      type: "collection",
      docid: {
        type: xml.at(ns("//bibdata/docidentifier/@type")).text,
        id: xml.at(ns("//bibdata/docidentifier")).text,
      },
    },
    manifest: {
      level: "collection", title: "Collection",
      docref: files.sort_by { |f| f[:order] }.each.map do |f|
        { fileref: f[:url], identifier: f[:title] }
      end
    },
  }
  recursive_string_keys(ret).to_yaml
end

#compile(filename, options = {}) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 27

def compile(filename, options = {})
  require_libraries(options)
  options = options_extract(filename, options)
  validate_options(options)
  @processor = @registry.find_processor(options[:type].to_sym)
  extensions = get_extensions(options) or return nil
  (file, isodoc = process_input(filename, options)) or return nil
  relaton_export(isodoc, options)
  extract(isodoc, options[:extract], options[:extract_type])
  font_install(options)
  process_exts(filename, extensions, file, isodoc, options)
end

#copy_repo_items_biblio(ins, section, xml) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 194

def copy_repo_items_biblio(ins, section, xml)
  xml.xpath(ns("//references/bibitem[docidentifier/@type = 'repository']"))
    .each_with_object([]) do |b, m|
    section.at("//*[@bibitemid = '#{b['id']}']") or next
    ins << b.dup
    m << b["id"]
  end
end

#create_sectionfile(xml, out, file, chunk, parentnode) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 91

def create_sectionfile(xml, out, file, chunk, parentnode)
  ins = out.at(ns("//misccontainer")) || out.at(ns("//bibdata"))
  if parentnode
    ins.next = "<#{parentnode}/>"
    ins.next.add_child(chunk.dup)
  else ins.next = chunk.dup
  end
  xref_process(out, xml, @key)
  outname = "#{file}.xml"
  File.open(File.join(@splitdir, outname), "w:UTF-8") { |f| f.write(out) }
  outname
end

#emptydoc(xml) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 76

def emptydoc(xml)
  out = xml.dup
  out.xpath(
    ns("//preface | //sections | //annex | //bibliography/clause | "\
       "//bibliography/references[not(@hidden = 'true')] | //indexsect"),
  ).each(&:remove)
  out
end

#eref_to_internal_eref(section, xml, key) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 155

def eref_to_internal_eref(section, xml, key)
  eref_to_internal_eref_select(section, xml).each_with_object([]) do |x, m|
    url = xml.at(ns("//bibitem[@id = '#{x}']/uri[@type = 'citation']"))
    section.xpath(("//*[@bibitemid = '#{x}']")).each do |e|
      id = eref_to_internal_eref1(e, key, url)
      id and m << id
    end
  end
end

#eref_to_internal_eref1(elem, key, url) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 165

def eref_to_internal_eref1(elem, key, url)
  if url
    elem.name = "link"
    elem["target"] = url
    nil
  else
    elem["bibitemid"] = "#{key}_#{elem['bibitemid']}"
    elem << make_anchor(elem["bibitemid"])
    elem["type"] = key
    elem["bibitemid"]
  end
end

#eref_to_internal_eref_select(section, xml) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 178

def eref_to_internal_eref_select(section, xml)
  refs = section.xpath(("//*/@bibitemid")).map { |x| x.text } # rubocop:disable Style/SymbolProc
  refs.uniq.reject do |x|
    xml.at(ns("//bibitem[@id = '#{x}'][@type = 'internal']")) ||
      xml.at(ns("//bibitem[@id = '#{x}']"\
                "[docidentifier/@type = 'repository']"))
  end
end

#export_output(fname, content, **options) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 83

def export_output(fname, content, **options)
  mode = options[:binary] ? "wb" : "w:UTF-8"
  File.open(fname, mode) { |f| f.write content }
end

#extract(isodoc, dirname, extract_types) ⇒ Object 



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# File 'lib/metanorma/extract.rb', line 20

def extract(isodoc, dirname, extract_types)
  return unless dirname

  extract_types.nil? || extract_types.empty? and
    extract_types = %i[sourcecode image requirement]
  FileUtils.rm_rf dirname
  FileUtils.mkdir_p dirname
  xml = Nokogiri::XML(isodoc) { |config| config.huge }
  sourcecode_export(xml, dirname) if extract_types.include? :sourcecode
  image_export(xml, dirname) if extract_types.include? :image
  extract_types.include?(:requirement) and
    requirement_export(xml, dirname)
end

#font_install(opt) ⇒ Object 



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# File 'lib/metanorma/compile_options.rb', line 56

def font_install(opt)
  FontistUtils.install_fonts(@processor, opt) unless @fontist_installed
  @fontist_installed = true
  return if !opt[:fonts] ||
    opt[:fontlicenseagreement] == "continue-without-fonts"

  confirm = opt[:fontlicenseagreement] == "no-install-fonts" ? "no" : "yes"
  CSV.parse_line(opt[:fonts], col_sep: ";").map(&:strip).each do |f|
    Fontist::Font.install(f, confirmation: confirm)
  end
end

#get_extensions(options) ⇒ Object 



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# File 'lib/metanorma/compile_options.rb', line 36

def get_extensions(options)
  options[:extension_keys] ||=
    @processor.output_formats.reduce([]) { |memo, (k, _)| memo << k }
  extensions = options[:extension_keys].reduce([]) do |memo, e|
    if @processor.output_formats[e] then memo << e
    else
      message = "[metanorma] Error: #{e} format is not supported for this standard."
      @errors << message
      Util.log(message, :error)
      memo
    end
  end
  if !extensions.include?(:presentation) && extensions.any? do |e|
    @processor.use_presentation_xml(e)
  end
    extensions << :presentation
  end
  extensions
end

#image_export(xml, dirname) ⇒ Object 



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# File 'lib/metanorma/extract.rb', line 44

def image_export(xml, dirname)
  xml.at("//image | //xmlns:image") or return
  FileUtils.mkdir_p "#{dirname}/image"
  xml.xpath("//image | //xmlns:image").each_with_index do |s, i|
    next unless /^data:image/.match? s["src"]

    %r{^data:image/(?<imgtype>[^;]+);base64,(?<imgdata>.+)$} =~ s["src"]
    fn = s["filename"] || sprintf("image-%<num>04d.%<name>s",
                                  num: i, name: imgtype)
    export_output("#{dirname}/image/#{fn}", Base64.strict_decode64(imgdata),
                  binary: true)
  end
end

#insert_indirect_biblio(ins, refs, prefix) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 203

def insert_indirect_biblio(ins, refs, prefix)
  refs.each do |x|
    ins << <<~BIBENTRY
      <bibitem id="#{x}" type="internal">
      <docidentifier type="repository">#{x.sub(/^#{prefix}_/, "#{prefix}/")}</docidentifier>
      </bibitem>
    BIBENTRY
  end
end

#make_anchor(anchor) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 139

def make_anchor(anchor)
  "<localityStack><locality type='anchor'><referenceFrom>"\
    "#{anchor}</referenceFrom></locality></localityStack>"
end

#new_hidden_ref(xmldoc) ⇒ Object

from standoc



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# File 'lib/metanorma/sectionsplit.rb', line 188

def new_hidden_ref(xmldoc)
  ins = xmldoc.at("bibliography") or
    xmldoc.root << "<bibliography/>" and ins = xmldoc.at("bibliography")
  ins.add_child("<references hidden='true' normative='false'/>").first
end

#ns(xpath) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 18

def ns(xpath)
  @isodoc.ns(xpath)
end

#options_extract(filename, options) ⇒ Object 



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# File 'lib/metanorma/compile_options.rb', line 19

def options_extract(filename, options)
  content = read_file(filename)
  o = Metanorma::Input::Asciidoc.new.extract_metanorma_options(content)
    .merge(xml_options_extract(content))
  options[:type] ||= o[:type]&.to_sym
  t = @registry.alias(options[:type]) and options[:type] = t
  dir = filename.sub(%r(/[^/]+$), "/")
  options[:relaton] ||= File.join(dir, o[:relaton]) if o[:relaton]
  options[:sourcecode] ||= File.join(dir, o[:sourcecode]) if o[:sourcecode]
  options[:extension_keys] ||= o[:extensions]&.split(/, */)&.map(&:to_sym)
  options[:extension_keys] = nil if options[:extension_keys] == [:all]
  options[:format] ||= :asciidoc
  options[:filename] = filename
  options[:fontlicenseagreement] ||= "no-install-fonts"
  options
end

#process_ext(ext, file, isodoc, fnames, options) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 111

def process_ext(ext, file, isodoc, fnames, options)
  fnames[:ext] = @processor.output_formats[ext]
  fnames[:out] = fnames[:f].sub(/\.[^.]+$/, ".#{fnames[:ext]}")
  isodoc_options = get_isodoc_options(file, options, ext)
  thread = nil
  unless process_ext_simple(ext, isodoc, fnames, options,
                            isodoc_options)
    thread = process_exts1(ext, fnames, isodoc, options, isodoc_options)
  end
  thread
end

#process_ext_simple(ext, isodoc, fnames, options, isodoc_options) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 123

def process_ext_simple(ext, isodoc, fnames, options, isodoc_options)
  if ext == :rxl
    relaton_export(isodoc, options.merge(relaton: fnames[:out]))
  elsif options[:passthrough_presentation_xml] && ext == :presentation
    f = File.exist?(fnames[:f]) ? fnames[:f] : fnames[:orig_filename]
    FileUtils.cp f, fnames[:presentationxml]
  elsif ext == :html && options[:sectionsplit]
    sectionsplit_convert(fnames[:xml], isodoc, fnames[:out],
                         isodoc_options)
  else return false
  end
  true
end

#process_exts(filename, extensions, file, isodoc, options) ⇒ Object

isodoc is Raw Metanorma XML



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# File 'lib/metanorma/compile.rb', line 98

def process_exts(filename, extensions, file, isodoc, options)
  f = File.expand_path(change_output_dir(options))
  fnames = { xml: f.sub(/\.[^.]+$/, ".xml"), f: f,
             orig_filename: File.expand_path(filename),
             presentationxml: f.sub(/\.[^.]+$/, ".presentation.xml") }
  @queue = ::Metanorma::WorkersPool
    .new(ENV["METANORMA_PARALLEL"]&.to_i || 3)
  Util.sort_extensions_execution(extensions).each do |ext|
    process_ext(ext, file, isodoc, fnames, options)
  end
  @queue.shutdown
end

#process_exts1(ext, fnames, isodoc, options, isodoc_options) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 137

def process_exts1(ext, fnames, isodoc, options, isodoc_options)
  if @processor.use_presentation_xml(ext)
    @queue.schedule(ext, fnames.dup, options.dup,
                    isodoc_options.dup) do |a, b, c, d|
      process_output_threaded(a, b, c, d)
    end
  else
    process_output_unthreaded(ext, fnames, isodoc, isodoc_options)
  end
end

#process_input(filename, options) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 40

def process_input(filename, options)
  case extname = File.extname(filename)
  when ".adoc" then process_input_adoc(filename, options)
  when ".xml" then process_input_xml(filename, options)
  else
    Util.log("[metanorma] Error: file extension #{extname} "\
             "is not supported.", :error)
    nil
  end
end

#process_input_adoc(filename, options) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 51

def process_input_adoc(filename, options)
  Util.log("[metanorma] Processing: AsciiDoc input.", :info)
  file = read_file(filename)
  options[:asciimath] and
    file.sub!(/^(=[^\n]+\n)/, "\\1:mn-keep-asciimath:\n")
  dir = File.dirname(filename)
  dir != "." and
    file.gsub!(/^include::/, "include::#{dir}/")
  [file, @processor.input_to_isodoc(file, filename, options)]
end

#process_input_xml(filename, _options) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 62

def process_input_xml(filename, _options)
  Util.log("[metanorma] Processing: Metanorma XML input.", :info)
  # TODO NN: this is a hack -- we should provide/bridge the
  # document attributes in Metanorma XML
  ["", read_file(filename)]
end

#process_output_threaded(ext, fnames1, options1, isodoc_options1) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 148

def process_output_threaded(ext, fnames1, options1, isodoc_options1)
  @processor.output(nil, fnames1[:presentationxml], fnames1[:out], ext,
                    isodoc_options1)
  wrap_html(options1, fnames1[:ext], fnames1[:out])
rescue StandardError => e
  isodoc_error_process(e)
end

#process_output_unthreaded(ext, fnames, isodoc, isodoc_options) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 156

def process_output_unthreaded(ext, fnames, isodoc, isodoc_options)
  @processor.output(isodoc, fnames[:xml], fnames[:out], ext,
                    isodoc_options)
  nil # return as Thread
rescue StandardError => e
  isodoc_error_process(e)
end

#read_file(filename) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 69

def read_file(filename)
  File.read(filename, encoding: "utf-8").gsub("\r\n", "\n")
end

#recursive_string_keys(hash) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 213

def recursive_string_keys(hash)
  case hash
  when Hash then hash.map { |k, v| [k.to_s, recursive_string_keys(v)] }.to_h
  when Enumerable then hash.map { |v| recursive_string_keys(v) }
  else
    hash
  end
end

#relaton_export(isodoc, options) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 73

def relaton_export(isodoc, options)
  return unless options[:relaton]

  xml = Nokogiri::XML(isodoc) { |config| config.huge }
  bibdata = xml.at("//bibdata") || xml.at("//xmlns:bibdata")
  # docid = bibdata&.at("./xmlns:docidentifier")&.text || options[:filename]
  # outname = docid.sub(/^\s+/, "").sub(/\s+$/, "").gsub(/\s+/, "-") + ".xml"
  File.open(options[:relaton], "w:UTF-8") { |f| f.write bibdata.to_xml }
end

#require_libraries(options) ⇒ Object 



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# File 'lib/metanorma/compile_options.rb', line 5

def require_libraries(options)
  options&.dig(:require)&.each { |r| require r }
end

#requirement_export(xml, dirname) ⇒ Object 



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# File 'lib/metanorma/extract.rb', line 62

def requirement_export(xml, dirname)
  xml.at(REQUIREMENT_XPATH) or return
  FileUtils.mkdir_p "#{dirname}/requirement"
  xml.xpath(REQUIREMENT_XPATH).each_with_index do |s, i|
    fn = s["filename"] ||
      sprintf("%<name>s-%<num>04d.xml", name: s.name, num: i)
    export_output("#{dirname}/requirement/#{fn}", s)
  end
end

#sectionfile(fulldoc, xml, file, chunk, parentnode) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 85

def sectionfile(fulldoc, xml, file, chunk, parentnode)
  fname = create_sectionfile(fulldoc, xml.dup, file, chunk, parentnode)
  { order: chunk["displayorder"].to_i, url: fname,
    title: titlerender(chunk) }
end

#sectionsplit(xml, filename, dir) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 65

def sectionsplit(xml, filename, dir)
  @key = xref_preprocess(xml)
  @splitdir = dir
  out = emptydoc(xml)
  SPLITSECTIONS.each_with_object([]) do |n, ret|
    xml.xpath(ns(n[0])).each do |s|
      ret << sectionfile(xml, out, "#{filename}.#{ret.size}", s, n[1])
    end
  end
end

#sectionsplit_convert(input_filename, file, output_filename = nil, opts = {}) ⇒ Object

assume we pass in Presentation XML, but we want to recover Semantic XML



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# File 'lib/metanorma/sectionsplit.rb', line 6

def sectionsplit_convert(input_filename, file, output_filename = nil,
                         opts = {})
  @isodoc = IsoDoc::Convert.new({})
  input_filename += ".xml" unless input_filename.match?(/\.xml$/)
  File.exist?(input_filename) or
    File.open(input_filename, "w:UTF-8") { |f| f.write(file) }
  presxml = File.read(input_filename, encoding: "utf-8")
  @openmathdelim, @closemathdelim = @isodoc.extract_delims(presxml)
  xml, filename, dir = @isodoc.convert_init(presxml, input_filename, false)
  build_collection(xml, presxml, output_filename || filename, dir, opts)
end

#sourcecode_export(xml, dirname) ⇒ Object 



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# File 'lib/metanorma/extract.rb', line 34

def sourcecode_export(xml, dirname)
  xml.at("//sourcecode | //xmlns:sourcecode") or return
  FileUtils.mkdir_p "#{dirname}/sourcecode"
  xml.xpath("//sourcecode | //xmlns:sourcecode").each_with_index do |s, i|
    filename = s["filename"] || sprintf("sourcecode-%04d.txt", i)
    export_output("#{dirname}/sourcecode/#{filename}",
                  clean_sourcecode(s.dup))
  end
end

#svg_preprocess(xml) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 119

def svg_preprocess(xml)
  xml.xpath("//m:svg", "m" => "http://www.w3.org/2000/svg").each do |s|
    m = svgmap_wrap(s)
    s.xpath(".//m:a", "m" => "http://www.w3.org/2000/svg").each do |a|
      next unless /^#/.match? a["href"]

      a["href"] = a["href"].sub(/^#/, "")
      m << "<target href='#{a['href']}'>"\
           "<xref target='#{a['href']}'/></target>"
    end
  end
end

#svgmap_wrap(svg) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 132

def svgmap_wrap(svg)
  ret = svg.at("./ancestor::xmlns:svgmap") and return ret
  ret = svg.at("./ancestor::xmlns:figure")
  ret.wrap("<svgmap/>")
  svg.at("./ancestor::xmlns:svgmap")
end

#titlerender(section) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 222

def titlerender(section)
  title = section.at(ns("./title")) or return "[Untitled]"
  t = title.dup
  t.xpath(ns(".//tab | .//br")).each { |x| x.replace(" ") }
  t.xpath(ns(".//strong")).each { |x| x.replace(x.children) }
  t.children.to_xml
end

#validate_format(options) ⇒ Object 



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# File 'lib/metanorma/compile_validate.rb', line 17

def validate_format(options)
  unless options[:format] == :asciidoc
    Util.log("[metanorma] Error: Only source file format currently "\
             "supported is 'asciidoc'.", :fatal)
  end
end

#validate_options(options) ⇒ Object 



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# File 'lib/metanorma/compile_validate.rb', line 3

def validate_options(options)
  validate_type(options)
  validate_format(options)
end

#validate_type(options) ⇒ Object 



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# File 'lib/metanorma/compile_validate.rb', line 8

def validate_type(options)
  unless options[:type]
    Util.log("[metanorma] Error: Please specify a standard type: "\
             "#{@registry.supported_backends}.", :fatal)
  end
  stdtype = options[:type].to_sym
  load_flavor(stdtype)
end

#wrap_html(options, file_extension, outfilename) ⇒ Object 



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# File 'lib/metanorma/compile.rb', line 88

def wrap_html(options, file_extension, outfilename)
  if options[:wrapper] && /html$/.match(file_extension)
    outfilename = outfilename.sub(/\.html$/, "")
    FileUtils.mkdir_p outfilename
    FileUtils.mv "#{outfilename}.html", outfilename
    FileUtils.mv "#{outfilename}_images", outfilename, force: true
  end
end

#xml_options_extract(file) ⇒ Object 



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# File 'lib/metanorma/compile_options.rb', line 9

def xml_options_extract(file)
  xml = Nokogiri::XML(file) { |config| config.huge }
  if xml.root
    @registry.root_tags.each do |k, v|
      return { type: k } if v == xml.root.name
    end
  end
  {}
end

#xref_preprocess(xml) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 104

def xref_preprocess(xml)
  svg_preprocess(xml)
  key = (0...8).map { rand(65..90).chr }.join # random string
  xml.root["type"] = key # to force recognition of internal refs
  key
end

#xref_process(section, xml, key) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 111

def xref_process(section, xml, key)
  refs = eref_to_internal_eref(section, xml, key)
  refs += xref_to_internal_eref(section, key)
  ins = new_hidden_ref(section)
  copied_refs = copy_repo_items_biblio(ins, section, xml)
  insert_indirect_biblio(ins, refs - copied_refs, key)
end

#xref_to_internal_eref(xml, key) ⇒ Object 



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# File 'lib/metanorma/sectionsplit.rb', line 144

def xref_to_internal_eref(xml, key)
  xml.xpath(ns("//xref")).each_with_object({}) do |x, m|
    x["bibitemid"] = "#{key}_#{x['target']}"
    x << make_anchor(x["target"])
    m[x["bibitemid"]] = true
    x.delete("target")
    x["type"] = key
    x.name = "eref"
  end.keys
end