require "isodoc/html_function/mathvariant_to_plain"
require_relative "postprocess_footnotes"
require_relative "postprocess_cover"
require "metanorma-utils"
module IsoDoc
module HtmlFunction
module Html
def postprocess(result, filename, _dir)
result = from_xhtml(cleanup(to_xhtml(textcleanup(result))))
toHTML(result, filename)
@files_to_delete.each { |f| FileUtils.rm_rf f }
end
def toHTML(result, filename)
result = from_xhtml(html_cleanup(to_xhtml(result)))
result = from_xhtml(move_images(resize_images(to_xhtml(result))))
result = html5(script_cdata(inject_script(result)))
File.open(filename, "w:UTF-8") { |f| f.write(result) }
end
def html5(doc)
doc.sub(%r{]+>}, "")
.sub(%r{<\?xml[^<>]+>}, "")
end
def html_cleanup(html)
html = term_header(html_footnote_filter(html_preface(htmlstyle(html))))
html = footnote_format(footnote_backlinks(html))
html = mathml(html_list_clean(remove_placeholder_paras(html)))
html_toc(heading_anchors(sourcecode_cleanup(html)))
end
def heading_anchors(html)
html.xpath("//h1 | //h2 | //h3 | //h4 | //h5 | //h6 | //h7 | //h8 "\
"//span[@class = 'inline-header']").each do |h|
h.at("./ancestor::div[@id='toc']") and next
div = h.xpath("./ancestor::div[@id]")
div.empty? and next
heading_anchor(h, div[-1]["id"])
end
html
end
def heading_anchor(hdr, id)
hdr.children = <<~HTML.strip
HTML
end
def sourcecode_cleanup(html)
ann = ".//div[@class = 'annotation']"
html.xpath("//pre[#{ann}] | //div[@class = 'sourcecode'][#{ann}]")
.each do |p|
ins = p.after("").next_element
p.xpath(ann).each do |d|
ins << d.remove.children
end
end
html
end
def remove_placeholder_paras(html)
%w(title-section prefatory-section).each do |s|
html&.at("//div[@class = '#{s}']/p[last()]")&.remove
end
html
end
def html_list_clean(html)
html.xpath("//ol/div | //ul/div").each do |div|
li = div.xpath("./preceding-sibling::li")&.last ||
div.at("./following-sibling::li")
div.parent = li
end
html
end
def mathml(docxml)
IsoDoc::HtmlFunction::MathvariantToPlain.new(docxml).convert
end
def resize_images(docxml)
docxml.xpath("//*[local-name() = 'img' or local-name() = 'svg']")
.each do |i|
loc = image_localfile(i) or next
i["width"], i["height"] = Vectory::ImageResize.new
.call(i, loc, @maxheight, @maxwidth)
end
docxml
end
# presupposes that the image source is local
def move_images(docxml)
FileUtils.rm_rf tmpimagedir
FileUtils.mkdir tmpimagedir
docxml.xpath("//*[local-name() = 'img'][@src]").each do |i|
/^data:/.match? i["src"] and next
@datauriimage ? datauri(i) : move_image1(i)
end
docxml
end
def datauri(img)
img["src"] = Vectory::Utils::datauri(img["src"], @localdir)
end
def image_suffix(img)
type = img["mimetype"]&.sub(%r{^[^/*]+/}, "")
matched = /\.(?[^. \r\n\t]+)$/.match img["src"]
type and !type.empty? and return type
!matched.nil? and matched[:suffix] and return matched[:suffix]
"png"
end
def move_image1(img)
suffix = image_suffix(img)
uuid = UUIDTools::UUID.random_create.to_s
fname = "#{uuid}.#{suffix}"
new_full_filename = File.join(tmpimagedir, fname)
local_filename = image_localfile(img)
FileUtils.cp local_filename, new_full_filename
img["src"] = File.join(rel_tmpimagedir, fname)
end
def term_header(docxml)
%w(h1 h2 h3 h4 h5 h6 h7 h8).each do |h|
docxml.xpath("//p[@class = 'TermNum'][../#{h}]").each do |p|
p.name = "h#{h[1].to_i + 1}"
id = p["id"]
p["id"] = "_#{UUIDTools::UUID.random_create}"
p.wrap("")
end
end
docxml
end
end
end
end