# frozen_string_literal: true
module IsoDoc::Function
module Utils
def date_range(date)
self.class.date_range(date)
end
def ns(xpath)
self.class.ns(xpath)
end
def insert_tab(out, n)
tab = %w(Hans Hant).include?(@script) ? " " : " "
[1..n].each { out << tab }
end
# add namespaces for Word fragments
NOKOHEAD = <<~HERE
HERE
# block for processing XML document fragments as XHTML,
# to allow for HTMLentities
def noko(&block)
doc = ::Nokogiri::XML.parse(NOKOHEAD)
fragment = doc.fragment('')
::Nokogiri::XML::Builder.with fragment, &block
fragment.to_xml(encoding: 'US-ASCII').lines.map do |l|
l.gsub(/\s*\n/, '')
end
end
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
DOCTYPE_HDR = ''
def to_xhtml(xml)
xml.gsub!(/<\?xml[^>]*>/, '')
/ e
File.open("#{@filename}.#{@format}.err", 'w:UTF-8') { |f| f.write xml }
abort "Malformed Output XML for #{@format}: #{e} (see #{@filename}.#{@format}.err)"
end
end
def to_xhtml_fragment(xml)
doc = ::Nokogiri::XML.parse(NOKOHEAD)
fragment = doc.fragment(xml)
fragment
end
def from_xhtml(xml)
xml.to_xml.sub(%r{ xmlns="http://www.w3.org/1999/xhtml"}, '')
end
CLAUSE_ANCESTOR =
".//ancestor::*[local-name() = 'annex' or "\
"local-name() = 'acknowledgements' or local-name() = 'term' or "\
"local-name() = 'appendix' or local-name() = 'foreword' or "\
"local-name() = 'introduction' or local-name() = 'terms' or "\
"local-name() = 'clause' or local-name() = 'references']/@id"
def get_clause_id(node)
clause = node.xpath(CLAUSE_ANCESTOR)
clause&.last&.text || nil
end
NOTE_CONTAINER_ANCESTOR =
".//ancestor::*[local-name() = 'annex' or "\
"local-name() = 'foreword' or local-name() = 'appendix' or "\
"local-name() = 'introduction' or local-name() = 'terms' or "\
"local-name() = 'acknowledgements' or local-name() = 'term' or "\
"local-name() = 'clause' or local-name() = 'references' or "\
"local-name() = 'figure' or local-name() = 'formula' or "\
"local-name() = 'table' or local-name() = 'example']/@id"
def get_note_container_id(node)
container = node.xpath(NOTE_CONTAINER_ANCESTOR)
container&.last&.text || nil
end
def sentence_join(array)
return '' if array.nil? || array.empty?
if array.length == 1 then array[0]
else
@i18n.l10n("#{array[0..-2].join(', ')} "\
"#{@i18n.and} #{array.last}",
@lang, @script)
end
end
# avoid `; avoid {{ (Liquid Templates); avoid [[ (Javascript)
def extract_delims(text)
@openmathdelim = '(#('
@closemathdelim = ')#)'
while text.include?(@openmathdelim) || text.include?(@closemathdelim)
@openmathdelim += '('
@closemathdelim += ')'
end
[@openmathdelim, @closemathdelim]
end
def header_strip(h)
h = h.to_s.gsub(%r{}, ' ').gsub(/<\/?h[123456][^>]*>/, '')
.gsub(/<\/?b[^>]*>/, '')
h1 = to_xhtml_fragment(h.dup)
h1.traverse do |x|
x.replace(' ') if x.name == 'span' && /mso-tab-count/.match(x['style'])
x.remove if x.name == 'span' && x['class'] == 'MsoCommentReference'
x.remove if x.name == 'a' && x['class'] == 'FootnoteRef'
x.remove if x.name == 'span' && /mso-bookmark/.match(x['style'])
x.replace(x.children) if x.name == 'a'
end
from_xhtml(h1)
end
def liquid(doc)
self.class.liquid(doc)
end
def liquid(doc)
# unescape HTML escapes in doc
doc = doc.split(%r<(\{%|%\})>).each_slice(4).map do |a|
a[2] = a[2].gsub(/\</, '<').gsub(/\>/, '>') if a.size > 2
a.join('')
end.join('')
Liquid::Template.parse(doc)
end
def empty2nil(v)
return nil if !v.nil? && v.is_a?(String) && v.empty?
v
end
def populate_template(docxml, _format = nil)
meta = @meta
.get
.merge(@labels || {})
.merge(@meta.labels || {})
.merge(fonts_options || {})
template = liquid(docxml)
template.render(meta.map { |k, v| [k.to_s, empty2nil(v)] }.to_h)
.gsub('<', '<').gsub('>', '>').gsub('&', '&')
end
def save_dataimage(uri, _relative_dir = true)
%r{^data:image/(?[^;]+);base64,(?.+)$} =~ uri
imgtype.sub!(/\+[a-z0-9]+$/, '') # svg+xml
imgtype = 'png' unless /^[a-z0-9]+$/.match imgtype
Tempfile.open(['image', ".#{imgtype}"]) do |f|
f.binmode
f.write(Base64.strict_decode64(imgdata))
@tempfile_cache << f # persist to the end
f.path
end
end
def image_localfile(i)
if /^data:image/.match? i['src']
save_dataimage(i['src'], false)
elsif %r{^([A-Z]:)?/}.match? i['src']
i['src']
else
File.join(@localdir, i['src'])
end
end
def labelled_ancestor(node)
!node.ancestors('example, requirement, recommendation, permission, '\
'table, figure, sourcecode').empty?
end
end
end