Class: Coradoc::Input::HTML::Plugin::Plateau

Inherits:
Coradoc::Input::HTML::Plugin show all
Defined in:
lib/coradoc/input/html/plugins/plateau.rb

Overview

This plugin enhances documents from the PLATEAU project to extract more data.

Usage: reverse_adoc -rcoradoc/input/html/plugins/plateau

--external-images -u raise --output _out/index.adoc index.html

Constant Summary collapse

IM = 
/[A-Z0-9]{1,3}/

Instance Attribute Summary

Attributes inherited from Coradoc::Input::HTML::Plugin

#asciidoc_string, #coradoc_tree, #html_tree

Instance Method Summary collapse

Methods inherited from Coradoc::Input::HTML::Plugin

#html_tree_add_hook_post, #html_tree_add_hook_post_by_css, #html_tree_add_hook_pre, #html_tree_add_hook_pre_by_css, #html_tree_change_properties_by_css, #html_tree_change_tag_name_by_css, #html_tree_preview, #html_tree_process_to_adoc, #html_tree_process_to_coradoc, #html_tree_remove_by_css, #html_tree_replace_with_children_by_css, #html_tree_run_hooks, #initialize, new

Constructor Details

This class inherits a constructor from Coradoc::Input::HTML::Plugin

Instance Method Details

#handle_headers(node, coradoc, state) ⇒ Object 



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# File 'lib/coradoc/input/html/plugins/plateau.rb', line 117

def handle_headers(node, coradoc, state)
  content = coradoc.content.map(&:content).join

  if %w[toc0 toc_0].any? { |i| coradoc.id&.start_with?(i) }
    # Special content
    case content.strip
    when "はじめに" # Introduction
      coradoc.style = "abstract" # The older version document has ".preface"
      coradoc.level_int = 1
    when "改定の概要" # Revision overview
      coradoc.style = "abstract" # The older version document has ".preface"
      coradoc.level_int = 1
    when "参考文献" # Bibliography
      coradoc.style = "bibliography"
      coradoc.level_int = 1
    when "改訂履歴" # Document history
      coradoc.style = "appendix"
      coradoc.level_int = 1
    when "0　概要" # Overview
      coradoc.style = "abstract" # I'm not sure this is correct
      coradoc.level_int = 1
    when "索引" # Index
      coradoc.style = "index" # I'm not sure this is correct
      coradoc.level_int = 1
    else
      warn "Unknown section #{content.inspect}"
    end
  end

  if node.name == "h1"
    if content.start_with?("Annex")
      coradoc.style = "appendix"
      coradoc.content.first.content.sub!(/\AAnnex [A-Z]/, "")
    end
  end

  # Remove numbers
  coradoc.content.first.content.sub!(/\A(#{IM}\.)*#{IM}[[:space:]]/, "")

  coradoc
end

#handle_headers_h4(node, coradoc, state) ⇒ Object 



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# File 'lib/coradoc/input/html/plugins/plateau.rb', line 159

def handle_headers_h4(node, coradoc, state)
  title = Coradoc.strip_unicode(coradoc.content.first.content)
  case title
  when /\A\(\d+\)(.*)/
    coradoc.level_int = 4
    coradoc.content.first.content = $1.strip
    coradoc
  when /\A\d+\)(.*)/
    coradoc.level_int = 5
    coradoc.content.first.content = $1.strip
    coradoc
  when /\A#{IM}\.#{IM}\.#{IM}\.#{IM}(.*)/
    coradoc.level_int = 4
    coradoc.content.first.content = $1.strip
  else
    if title.empty?
      # Strip instances of faulty empty paragraphs
      nil
    else
      ["// FIXME\n", coradoc]
    end
  end
end

#name ⇒ Object 



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# File 'lib/coradoc/input/html/plugins/plateau.rb', line 10

def name
  "PLATEAU"
end

#postprocess_asciidoc_string ⇒ Object 



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# File 'lib/coradoc/input/html/plugins/plateau.rb', line 183

def postprocess_asciidoc_string
  str = self.asciidoc_string

  ### Custom indentation handling
  # If there's a step up, add [none]
  str = str.gsub(%r{\s+//-ENDPT2D\s+//-PT3D\s+}, "\n[none]\n")
  str = str.gsub(%r{\s+//-ENDPT2D\s+//-PT4D\s+}, "\n[none]\n")
  str = str.gsub(%r{\s+//-ENDPT3D\s+//-PT4D\s+}, "\n[none]\n")
  # Collapse blocks of text[2,3]data
  str = str.gsub(%r{\s+//-ENDPT[234]D\s+//-PT[234]D\s+}, "\n\n")
  # In the beginning, add [none]
  str = str.gsub(%r{\s+//-PT[234]D\s+}, "\n\n[none]\n")
  # If following with another list, ensure we readd styling
  str = str.gsub(%r{\s+//-ENDPT[234]D\s+\*}, "\n\n[disc]\n*")
  # Otherwise, clean up
  str = str.gsub(%r{\s+//-ENDPT[234]D\s+}, "\n\n")

  self.asciidoc_string = str
end

#preprocess_html_tree ⇒ Object 



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# File 'lib/coradoc/input/html/plugins/plateau.rb', line 14

def preprocess_html_tree
  # Let's simplify the tree by removing what's extraneous
  # html_tree_remove_by_css("script, style, img.container_imagebox:not([src])")
  # html_tree_replace_with_children_by_css("div.container_box")
  # html_tree_replace_with_children_by_css("div.col.col-12")
  # html_tree_replace_with_children_by_css(".tabledatatext, .tabledatatextY")
  # html_tree_replace_with_children_by_css("div.row")
  #
  # We can remove that, but it messes up the images and paragraphs.

  # Remove side menu, so we can generate TOC ourselves
  html_tree_remove_by_css(".sideMenu")

  # Correct non-semantic classes into semantic HTML tags
  html_tree_change_tag_name_by_css(".titledata", "h1")
  html_tree_change_tag_name_by_css(".subtitledata", "h2")
  html_tree_change_tag_name_by_css(".pitemdata", "h3")
  html_tree_change_tag_name_by_css(".sitemdata", "h4")
  html_tree_change_tag_name_by_css('td[bgcolor="#D0CECE"]', "th")
  html_tree_change_tag_name_by_css('td[bgcolor="#d0cece"]', "th")
  html_tree_change_tag_name_by_css('.framedata, .frame_container_box', 'aside')
  html_tree_change_tag_name_by_css('.frame2data', 'pre')
  # Assumption that all code snippets in those documents are XML...
  html_tree_change_properties_by_css(".frame2data", class: "brush:xml;")

  # Remove some CSS ids that are not important to us
  html_tree_change_properties_by_css("#__nuxt", id: nil)
  html_tree_change_properties_by_css("#__layout", id: nil)
  html_tree_change_properties_by_css("#app", id: nil)

  # Handle lists of document 02
  html_tree_replace_with_children_by_css(".list_num-wrap")

  # Convert table/img caption to become a caption
  html_tree.css(".imagedata").each do |e|
    table = e.parent.next&.children&.first
    if table&.name == "table"
      e.name = "caption"
      table.prepend_child(e)
      next
    end

    img = e.parent.previous&.children&.first
    if img&.name == "img" && img["src"]
      title = e.text.strip
      img["title"] = title
      e.remove
      next
    end
  end

  # Add hooks for H1, H2, H3, H4
  html_tree_add_hook_post_by_css("h1, h2, h3", &method(:handle_headers))
  html_tree_add_hook_post_by_css("h4", &method(:handle_headers_h4))

  # Table cells aligned to center
  html_tree_change_properties_by_css(".tableTopCenter", align: "center")

  # Handle non-semantic lists and indentation
  html_tree_add_hook_pre_by_css ".text2data" do |node,|
    text = html_tree_process_to_adoc(node).strip
    next "" if text.empty? || text == "\u3000"

    if text.start_with?(/\d+\./)
      text = text.sub(/\A\d+.\s*/, "")
      ".. #{text}\n"
    else
      text = text.gsub(/^/, "** ")
      "\n\n//-PT2D\n#{text}\n//-ENDPT2D\n\n"
    end
  end

  (3..4).each do |i|
    html_tree_add_hook_pre_by_css ".text#{i}data" do |node,|
      text = html_tree_process_to_adoc(node).strip
      next "" if text.empty? || text == "\u3000"

      text = text.strip.gsub(/^/, "#{'*' * i} ")
      "\n\n//-PT#{i}D\n#{text}\n//-ENDPT#{i}D\n\n"
    end
  end

  (2..3).each do |i|
    html_tree_add_hook_pre_by_css ".text#{i}data_point ul" do |node,|
      text = html_tree_process_to_adoc(node.children.first.children).strip

      "#{'*' * i} #{text}\n"
    end
  end

  (1..20).each do |i|
    html_tree_add_hook_pre_by_css ".numtextdata_num .list_num#{i}" do |node,|
      text = html_tree_process_to_adoc(node).strip

      "[start=#{i}]\n. #{text}\n"
    end
  end

  # html_tree_preview
end