# frozen_string_literal: true
require_relative 'extra_docinfo'
require_relative 'munge_body'
module DocbookCompat
##
# Methods to convert the document at the top level. All of these are a bit
# scary but required at this point for docbook compatibility.
module ConvertDocument
include MungeBody
def convert_document(doc)
# We'll manually add the toc ourselves if it was requested.
wants_toc = doc.attr?('toc') && doc.attr?('toc-placement', 'auto')
doc.attributes.delete 'toc' if wants_toc
doc.extend ExtraDocinfo
html = yield
munge_html doc, html, wants_toc
html + "\n"
end
def munge_html(doc, html, wants_toc)
title = doc.doctitle partition: true
munge_html_tag html
munge_head doc.attr('title-extra'), html
munge_body doc, html
munge_title doc, title, html
add_toc doc, html if wants_toc
end
def munge_html_tag(html)
html.gsub!(//, '') ||
raise("Coudn't fix html in #{html}")
end
def munge_head(title_extra, html)
if html !~ %r{^([\S\s]+)<\/title>$}m
raise("Couldn't munge <title> in #{html}")
end
html.gsub!(%r{^<title>([\S\s]+)<\/title>$}m) do
add_content_meta Regexp.last_match[1], title_extra
end
munge_meta html
end
def add_content_meta(match, title_extra)
# If multiple lines, get just the first line
clean_title = match.gsub!(/\n[\S\s]+/, '') || match
clean_title = strip_tags clean_title
<<~HTML
<title>#{clean_title}#{title_extra} | Elastic
HTML
end
META_VIEWPORT = <<~HTML
HTML
def munge_meta(html)
html.gsub!(
%(\n), ''
) || raise("Couldn't remove edge compat in #{html}")
html.gsub!(META_VIEWPORT, '') ||
raise("Couldn't remove viewport in #{html}")
html.gsub!(/\n/, '') ||
raise("Couldn't remove generator in #{html}")
end
def munge_title(doc, title, html)
# Important: we're not replacing the whole header - it still will have a
# closing .
#
# We also add a placeholder for the breadcrumbs that will be replaced
# in resources/asciidoctor/lib/chunker/extension.rb
header_start = <<~HTML
#{docbook_style_title doc, title}
HTML
html.gsub!(%r{
\n
.+?
\n}m, header_start) ||
raise("Couldn't wrap header in #{html}")
end
def docbook_style_title(doc, title)
id = doc.id || 'id-1'
result = <<~HTML