Class: Metanorma::CollectionRenderer

Inherits:
Object
  • Object
show all
Defined in:
lib/metanorma/collection_renderer.rb,
lib/metanorma/collection_fileparse.rb,
lib/metanorma/collection_fileprocess.rb

Overview

XML collection renderer

Defined Under Namespace

Classes: Dummy, PdfOptionsNode

Constant Summary collapse

FORMATS = 
%i[html xml doc pdf].freeze

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(collection, folder, options = {}) ⇒ CollectionRenderer

This is only going to render the HTML collection We presuppose that the bibdata of the document is equivalent to that of the collection, and that the flavour gem can sensibly process it. We may need to enhance metadata in the flavour gems isodoc/metadata.rb with collection metadata

Parameters:

  • xml (Metanorma::Collection) —

    input XML collection

  • folder (String) —

    input folder

  • options (Hash) (defaults to: {})

Options Hash (options):

  • :coverpage (String) —

    cover page HTML (Liquid template)

  • :format (Array<Symbol>) —

    list of formats (xml,html,doc,pdf)

  • :ourput_folder (String) —

    output directory



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# File 'lib/metanorma/collection_renderer.rb', line 24

def initialize(collection, folder, options = {}) # rubocop:disable Metrics/AbcSize, Metrics/MethodLength
  check_options options
  @xml = Nokogiri::XML collection.to_xml # @xml is the collection manifest
  @lang = @xml&.at(ns("//bibdata/language"))&.text || "en"
  @script = @xml&.at(ns("//bibdata/script"))&.text || "Latn"
  @doctype = doctype
  require "metanorma-#{@doctype}"

  # output processor for flavour
  @isodoc = isodoc

  @outdir = options[:output_folder]
  @coverpage = options[:coverpage]
  @format = options[:format]
  @compile_options = options[:compile] || {}
  @log = options[:log]
  @documents = collection.documents

  # list of files in the collection
  @files = read_files folder
  FileUtils.rm_rf @outdir
  FileUtils.mkdir_p @outdir
end

Class Method Details

.render(col, options = {}) ⇒ Object

Parameters:

Options Hash (options):

  • :coverpage (String) —

    cover page HTML (Liquid template)

  • :format (Array<Synbol>) —

    list of formats

  • :ourput_folder (Strong) —

    output directory



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# File 'lib/metanorma/collection_renderer.rb', line 53

def self.render(col, options = {})
  folder = File.dirname col.file
  cr = new(col, folder, options)
  cr.files
  cr.concatenate(col, options)
  cr.coverpage if options[:format]&.include?(:html)
end

Instance Method Details

#add_document_suffix(identifier, doc) ⇒ Object 



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

def add_document_suffix(identifier, doc)
  document_suffix = Metanorma::Utils::to_ncname(identifier)
  [%w[* id], %w[* bibitemid], %w[review from],
   %w[review to], %w[index to], %w[xref target],
   %w[callout target]]
    .each do |(tag_name, attribute_name)|
    add_suffix_to_attributes(doc, document_suffix, tag_name, attribute_name)
  end
end

#add_suffix_to_attributes(doc, suffix, tag_name, attribute_name) ⇒ Object 



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# File 'lib/metanorma/collection_fileprocess.rb', line 49

def add_suffix_to_attributes(doc, suffix, tag_name, attribute_name)
  doc.xpath(ns("//#{tag_name}[@#{attribute_name}]")).each do |elem|
    elem.attributes[attribute_name].value =
      "#{elem.attributes[attribute_name].value}_#{suffix}"
  end
end

#concatenate(col, options) ⇒ Object 



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# File 'lib/metanorma/collection_renderer.rb', line 61

def concatenate(col, options)
  options[:format] << :presentation if options[:format].include?(:pdf)
  options[:format].uniq.each do |e|
    next unless %i(presentation xml).include?(e)

    ext = e == :presentation ? "presentation.xml" : e.to_s
    out = col.clone
    out.directives << "documents-inline"
    out.documents.keys.each do |id|
      next if @files[id][:attachment]

      filename = @files[id][:outputs][e]
      out.documents[id] = Metanorma::Document.raw_file(filename)
    end
    File.open(File.join(@outdir, "collection.#{ext}"), "w:UTF-8") { |f| f.write(out.to_xml) }
  end
  options[:format].include?(:pdf) and
    pdfconv.convert(File.join(@outdir, "collection.presentation.xml"))
end

#copy_file_to_dest(fileref) ⇒ Object 



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

def copy_file_to_dest(fileref)
  _file, filename = targetfile(fileref, read: true, doc: false)
  dest = File.join(@outdir, fileref[:out_path])
  FileUtils.mkdir_p(File.dirname(dest))
  FileUtils.cp filename, dest
end

#coverpage ⇒ Object

populate liquid template of ARGV with metadata extracted from collection manifest



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# File 'lib/metanorma/collection_renderer.rb', line 140

def coverpage
  return unless @coverpage

  File.open(File.join(@outdir, "index.html"), "w:UTF-8") do |f|
    f.write @isodoc.populate_template(File.read(@coverpage))
  end
end

#datauri_encode(docxml) ⇒ Object 



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# File 'lib/metanorma/collection_fileparse.rb', line 79

def datauri_encode(docxml)
  docxml.xpath(ns("//image")).each do |i|
    i["src"] = Metanorma::Utils::datauri(i["src"])
  end
  docxml
end

#docrefs(elm, builder) ⇒ Object

Parameters:

  • elm (Nokogiri::XML::Element)
  • builder (Nokogiri::XML::Builder) 


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# File 'lib/metanorma/collection_renderer.rb', line 169

def docrefs(elm, builder)
  elm.xpath(ns("./docref")).each do |d|
    identifier = d.at(ns("./identifier")).text
    link = if d["fileref"] then d["fileref"].sub(/\.xml$/, ".html")
           else d["id"] + ".html"
           end
    builder.li { builder.a identifier, href: link }
  end
end

#doctype ⇒ Object

infer the flavour from the first document identifier; relaton does that



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

def doctype
  if (docid = @xml&.at(ns("//bibdata/docidentifier/@type"))&.text)
    dt = docid.downcase
  elsif (docid = @xml&.at(ns("//bibdata/docidentifier"))&.text)
    dt = docid.sub(/\s.*$/, "").lowercase
  else return "standoc"
  end
  @registry = Metanorma::Registry.instance
  @registry.alias(dt.to_sym)&.to_s || dt
end

#file_compile(file, filename, identifier) ⇒ Object

compile and output individual file in collection



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# File 'lib/metanorma/collection_fileprocess.rb', line 97

def file_compile(file, filename, identifier)
  # warn "metanorma compile -x html #{f.path}"
  c = Compile.new
  c.compile file.path, { format: :asciidoc,
                         extension_keys: @format }.merge(@compile_options)
  @files[identifier][:outputs] = {}
  @format.each do |e|
    ext = c.processor.output_formats[e]
    fn = File.basename(filename).sub(/(?<=\.)[^\.]+$/, ext.to_s)
    FileUtils.mv file.path.sub(/\.xml$/, ".#{ext}"), File.join(@outdir, fn)
    @files[identifier][:outputs][e] = File.join(@outdir, fn)
  end
end

#file_entry(docref, identifier, _path) ⇒ Object

rel_path is the source file address, determined relative to the YAML. out_path is the destination file address, with any references outside the working directory (../../…) truncated



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# File 'lib/metanorma/collection_fileprocess.rb', line 37

def file_entry(docref, identifier, _path)
  ret = if docref["fileref"]
          { type: "fileref", ref: @documents[identifier].file,
            rel_path: docref["fileref"],
            out_path: Util::source2dest_filename(docref["fileref"]) }
        else
          { type: "id", ref: docref["id"] }
        end
  ret[:attachment] = docref["attachment"] if docref["attachment"]
  ret
end

#files ⇒ Object

process each file in the collection files are held in memory, and altered as postprocessing



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# File 'lib/metanorma/collection_fileprocess.rb', line 120

def files # rubocop:disable Metrics/AbcSize, Metrics/MethodLength
  internal_refs = locate_internal_refs
  @files.each do |identifier, x|
    if x[:attachment] then copy_file_to_dest(x)
    else
      file, filename = targetfile(x, read: true)
      file = update_xrefs(file, identifier, internal_refs)
      Tempfile.open(["collection", ".xml"], encoding: "utf-8") do |f|
        f.write(file)
        f.close
        file_compile(f, filename, identifier)
      end
    end
  end
end

#gather_internal_refs ⇒ Object

gather internal bibitem references



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

def gather_internal_refs
  @files.each_with_object({}) do |(_, x), refs|
    next if x[:attachment]

    file, = targetfile(x, read: true)
    Nokogiri::XML(file)
      .xpath(ns("//bibitem[@type = 'internal']/"\
    "docidentifier[@type = 'repository']")).each do |d|
      a = d.text.split(%r{/}, 2)
      a.size > 1 or next
      refs[a[0]] ||= {}
      refs[a[0]][a[1]] = true
    end
  end
end

#indexfile(elm) ⇒ String

single level navigation list, with hierarchical nesting if multiple lists are needed as separate HTML fragments, multiple instances of this function will be needed, and associated to different variables in the call to @isodoc.metadata_init (including possibly an array of HTML fragments)

Parameters:

  • elm (Nokogiri::XML::Element)

Returns:

  • (String) —

    XML



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# File 'lib/metanorma/collection_renderer.rb', line 187

def indexfile(elm)
  Nokogiri::HTML::Builder.new do |b|
    b.ul do
      b.li indexfile_title(elm)
      indexfile_docref(elm, b)
      elm.xpath(ns("./manifest")).each do |d|
        b << indexfile(d)
      end
    end
  end.doc.root.to_html
end

#indexfile_docref(elm, builder) ⇒ Object

uses the identifier to label documents; other attributes (title) can be looked up in @files[:bibdata]

Parameters:

  • elm (Nokogiri::XML::Element)
  • builder (Nokogiri::XML::Builder) 


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# File 'lib/metanorma/collection_renderer.rb', line 161

def indexfile_docref(elm, builder)
  return "" unless elm.at(ns("./docref"))

  builder.ul { |b| docrefs(elm, b) }
end

#indexfile_title(elm) ⇒ String

Parameters:

  • elm (Nokogiri::XML::Element)

Returns:

  • (String) 


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# File 'lib/metanorma/collection_renderer.rb', line 150

def indexfile_title(elm)
  lvl = elm&.at(ns("./level"))&.text&.capitalize
  lbl = elm&.at(ns("./title"))&.text
  "#{lvl}#{lvl && lbl ? ': ' : ''}#{lbl}"
end

#isodoc ⇒ Object

The isodoc class for the metanorma flavour we are using



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# File 'lib/metanorma/collection_renderer.rb', line 106

def isodoc # rubocop:disable Metrics/MethodLength
  x = Asciidoctor.load nil, backend: @doctype.to_sym
  isodoc = x.converter.html_converter(Dummy.new)
  isodoc.i18n_init(@lang, @script) # read in internationalisation
  # create the @meta class of isodoc, with "navigation" set to the index bar
  # extracted from the manifest
  nav = indexfile(@xml.at(ns("//manifest")))
  i18n = isodoc.i18n
  i18n.set(:navigation, nav)
  isodoc.metadata_init(@lang, @script, i18n)
  # populate the @meta class of isodoc with the various metadata fields
  # native to the flavour; used to populate Liquid
  isodoc.info(@xml, nil)
  isodoc
end

#locate_internal_refs ⇒ Object

resolve file location for the target of each internal reference



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# File 'lib/metanorma/collection_fileparse.rb', line 195

def locate_internal_refs
  refs = gather_internal_refs
  @files.keys.reject { |k| @files[k][:attachment] }.each do |identifier|
    locate_internal_refs1(refs, identifier, @files[identifier])
  end
  refs.each do |schema, ids|
    ids.each do |id, key|
      key == true and refs[schema][id] = "Missing:#{schema}:#{id}"
    end
  end
  refs
end

#locate_internal_refs1(refs, identifier, filedesc) ⇒ Object 



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# File 'lib/metanorma/collection_fileparse.rb', line 208

def locate_internal_refs1(refs, identifier, filedesc)
  file, _filename = targetfile(filedesc, read: true)
  docxml = Nokogiri::XML(file)
  refs.each do |schema, ids|
    ids.each_key do |id|
      n = docxml.at("//*[@id = '#{id}']") and
        n.at("./ancestor-or-self::*[@type = '#{schema}']") and
        refs[schema][id] = identifier
    end
  end
end

#ns(xpath) ⇒ Object 



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# File 'lib/metanorma/collection_renderer.rb', line 134

def ns(xpath)
  IsoDoc::Convert.new({}).ns(xpath)
end

#pdfconv ⇒ Object 



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# File 'lib/metanorma/collection_renderer.rb', line 81

def pdfconv
  doctype = @doctype.to_sym
  x = Asciidoctor.load nil, backend: doctype
  x.converter.pdf_converter(PdfOptionsNode.new(doctype, @compile_options))
end

#read_anchors(xml) ⇒ Object

map locality type and label (e.g. “clause” “1”) to id = anchor for a document Note: will only key clauses, which have unambiguous reference label in locality. Notes, examples etc with containers are just plunked against UUIDs, so that their IDs can at least be registered to be tracked as existing.



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# File 'lib/metanorma/collection_fileparse.rb', line 10

def read_anchors(xml)
  xrefs = @isodoc.xref_init(@lang, @script, @isodoc, @isodoc.i18n, {})
  xrefs.parse xml
  xrefs.get.each_with_object({}) do |(k, v), ret|
    ret[v[:type]] ||= {}
    index = if v[:container] || v[:label].nil? || v[:label].empty?
              UUIDTools::UUID.random_create.to_s
            else v[:label]
            end
    ret[v[:type]][index] = k
  end
end

#read_files(path) ⇒ Hash{String=>Hash}

hash for each document in collection of document identifier to: document reference (fileref or id), type of document reference, and bibdata entry for that file

Parameters:

  • path (String) —

    path to collection

Returns:

  • (Hash{String=>Hash}) 


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# File 'lib/metanorma/collection_fileprocess.rb', line 15

def read_files(path) # rubocop:disable Metrics/AbcSize, Metrics/MethodLength
  files = {}
  @xml.xpath(ns("//docref")).each do |d|
    identifier = d.at(ns("./identifier")).text
    files[identifier] = file_entry(d, identifier, path)
    if files[identifier][:attachment]
      files[identifier][:bibdata] = Metanorma::Document
        .attachment_bibitem(identifier).root
    else
      file, _filename = targetfile(files[identifier], read: true)
      xml = Nokogiri::XML(file)
      add_document_suffix(identifier, xml)
      files[identifier][:anchors] = read_anchors(xml)
      files[identifier][:bibdata] = xml.at(ns("//bibdata"))
    end
  end
  files
end

#ref_file(ref, read, doc) ⇒ Array<String, nil>

Parameters:

  • ref (String)
  • read (Boolean)
  • doc (Boolean)

Returns:

  • (Array<String, nil>) 


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# File 'lib/metanorma/collection_fileprocess.rb', line 89

def ref_file(ref, read, doc)
  file = File.read(ref, encoding: "utf-8") if read
  filename = ref.dup
  filename.sub!(/\.xml$/, ".html") if doc
  [file, filename]
end

#svgmap_resolve(docxml) ⇒ Object 



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# File 'lib/metanorma/collection_fileparse.rb', line 86

def svgmap_resolve(docxml)
  isodoc = IsoDoc::Convert.new({})
  docxml.xpath(ns("//svgmap//eref")).each do |e|
    href = isodoc.eref_target(e)
    next if href == "##{e['bibitemid']}" ||
      href =~ /^#/ && !docxml.at("//*[@id = '#{href.sub(/^#/, '')}']")

    e["target"] = href.strip
    e.name = "link"
    e&.elements&.remove
  end
  Metanorma::Utils::svgmap_rewrite(docxml, "")
end

#targetfile(data, options) ⇒ Array<String, nil>

return file contents + output filename for each file in the collection, given a docref entry so my URL should end with html or pdf or whatever formed relative to YAML file, not input path, relative to calling function

Parameters:

  • data (Hash) —

    docref entry

  • read (Boolean) —

    read the file in and return it

  • doc (Boolean) —

    I am a Metanorma document,

  • relative (Boolean) —

    Return output path,

Returns:

  • (Array<String, nil>) 


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# File 'lib/metanorma/collection_fileprocess.rb', line 75

def targetfile(data, options)
  options = { read: false, doc: true, relative: false }.merge(options)
  path = options[:relative] ? data[:out_path] : data[:ref]
  if data[:type] == "fileref"
    ref_file path, options[:read], options[:doc]
  else
    xml_file data[:id], options[:read]
  end
end

#update_anchor_create_loc(bib, e, docid) ⇒ Object

if there is a crossref to another document, with no anchor, retrieve the anchor given the locality, and insert it into the crossref



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# File 'lib/metanorma/collection_fileparse.rb', line 164

def update_anchor_create_loc(bib, e, docid)
  ins = e.at(ns("./localityStack")) || return
  type = ins&.at(ns("./locality/@type"))&.text
  ref = ins&.at(ns("./locality/referenceFrom"))&.text
  (anchor = @files[docid][:anchors][type][ref]) || return
  ref_from = Nokogiri::XML::Node.new "referenceFrom", bib
  ref_from.content = anchor.sub(/^_/, "")
  locality = Nokogiri::XML::Node.new "locality", bib
  locality[:type] = "anchor"
  locality.add_child ref_from
  ins << locality
end

#update_anchor_loc(bib, e, docid) ⇒ Object 



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# File 'lib/metanorma/collection_fileparse.rb', line 149

def update_anchor_loc(bib, e, docid)
  loc = e.at(ns(".//locality[@type = 'anchor']")) or
    return update_anchor_create_loc(bib, e, docid)
  document_suffix = Metanorma::Utils::to_ncname(docid)
  ref = loc.at(ns("./referenceFrom")) || return
  anchor = "#{ref.text}_#{document_suffix}"
  return unless @files[docid][:anchors].inject([]) do |m, (_, x)|
    m += x.values
  end.include?(anchor)

  ref.content = anchor
end

#update_anchors(bib, docxml, _id) ⇒ Object

update crossrefences to other documents, to include disambiguating document suffix on id



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

def update_anchors(bib, docxml, _id) # rubocop:disable Metrics/MethodLength, Metrics/AbcSize
  docid = bib&.at(ns("./docidentifier"))&.text
  docxml.xpath("//xmlns:eref[@citeas = '#{docid}']").each do |e|
    if @files[docid]
      update_anchor_loc(bib, e, docid)
    else
      e << "<strong>** Unresolved reference to document #{docid}, "\
        "id #{e['bibitemid']}</strong>"
    end
  end
end

#update_bibitem(bib, identifier) ⇒ Object

Parameters:

  • bib (Nokogiri::XML::Element)
  • identifier (String) 


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

def update_bibitem(bib, identifier) # rubocop:disable Metrics/AbcSize, Metrics/MethodLength
  docid = bib&.at(ns("./docidentifier"))&.text
  unless @files[docid]
    error = "[metanorma] Cannot find crossreference to document #{docid} "\
      "in document #{identifier}."
    @log.add("Cross-References", nil, error)
    Util.log(error, :warning)
    return
  end
  id = bib["id"]
  newbib = bib.replace(@files[docid][:bibdata])
  newbib.name = "bibitem"
  newbib["id"] = id
  newbib["hidden"] = "true"
  newbib&.at(ns("./ext"))&.remove
  _file, url = targetfile(@files[docid], relative: true, read: false,
                                         doc: !@files[docid][:attachment])
  uri_node = Nokogiri::XML::Node.new "uri", newbib
  uri_node[:type] = "citation"
  uri_node.content = url
  newbib.at(ns("./docidentifier")).previous = uri_node
end

#update_direct_refs_to_docs(docxml, identifier) ⇒ Object

repo(current-metanorma-collection/ISO 17301-1:2016) replaced by bibdata of “ISO 17301-1:2016” in situ as bibitem. Any erefs to that bibitem id are replaced with relative URL Preferably with anchor, and is a job to realise dynamic lookup of localities.



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# File 'lib/metanorma/collection_fileparse.rb', line 105

def update_direct_refs_to_docs(docxml, identifier)
  docxml.xpath(ns("//bibitem[not(ancestor::bibitem)]")).each do |b|
    docid = b&.at(ns("./docidentifier[@type = 'repository']"))&.text
    next unless docid && %r{^current-metanorma-collection/}.match(docid)

    update_bibitem(b, identifier)
    update_anchors(b, docxml, docid)
  end
end

#update_indirect_refs_to_docs(docxml, internal_refs) ⇒ Object

Resolve erefs to a container of ids in another doc, to an anchor eref (direct link)



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# File 'lib/metanorma/collection_fileparse.rb', line 117

def update_indirect_refs_to_docs(docxml, internal_refs)
  internal_refs.each do |schema, ids|
    ids.each do |id, file|
      update_indirect_refs_to_docs1(docxml, schema, id, file)
    end
  end
end

#update_indirect_refs_to_docs1(docxml, schema, id, file) ⇒ Object 



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# File 'lib/metanorma/collection_fileparse.rb', line 125

def update_indirect_refs_to_docs1(docxml, schema, id, file)
  docxml.xpath(ns("//eref[@bibitemid = '#{schema}_#{id}']")).each do |e|
    e["citeas"] = file
  end
  docid = docxml.at(ns("//bibitem[@id = '#{schema}_#{id}']/"\
                       "docidentifier[@type = 'repository']")) or return
  docid.children = "current-metanorma-collection/#{file}"
  docid.previous = "<docidentifier type='X'>#{file}</docidentifier>"
end

#update_xrefs(file, identifier, internal_refs) ⇒ String

Resolves direct links to other files in collection (repo(current-metanorma-collection/x), and indirect links to other files in collection (bibitem[@type = ‘internal’] pointing to a file anchor in another file in the collection)

Parameters:

  • file (String) —

    XML content

  • identifier (String) —

    docid

  • internal_refs (Hash{String=>Hash{String=>String}] schema name to anchor to filename) —

    nternal_refs [HashString=>Hash{String=>String] schema name to anchor to filename

Returns:

  • (String) —

    XML content



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# File 'lib/metanorma/collection_fileparse.rb', line 66

def update_xrefs(file, identifier, internal_refs)
  docxml = Nokogiri::XML(file)
  update_indirect_refs_to_docs(docxml, internal_refs)
  add_document_suffix(identifier, docxml)
  update_direct_refs_to_docs(docxml, identifier)
  svgmap_resolve(datauri_encode(docxml))
  docxml.xpath(ns("//references[not(./bibitem[not(@hidden) or "\
                  "@hidden = 'false'])]")).each do |f|
    f["hidden"] = "true"
  end
  docxml.to_xml
end

#xml_file(id, read) ⇒ Array<String, nil>

Parameters:

  • id (String)
  • read (Boolean)

Returns:

  • (Array<String, nil>) 


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# File 'lib/metanorma/collection_fileparse.rb', line 26

def xml_file(id, read)
  file = @xml.at(ns("//doc-container[@id = '#{id}']")).to_xml if read
  filename = "#{id}.html"
  [file, filename]
end