Module: Vivlio::Starter::CLI::PreProcessCommands::MarkdownTransformer

Defined in:
lib/vivlio/starter/cli/pre_process/markdown_transformer.rb

Overview

Markdown 特殊記法変換モジュール

Class Method Summary collapse

Class Method Details

.convert_book_card_inner_markdown(content) ⇒ Object

<div class=“book-card”> … </div> の内側MarkdownをHTMLへ



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# File 'lib/vivlio/starter/cli/pre_process/markdown_transformer.rb', line 102

def convert_book_card_inner_markdown(content)
  content.gsub(%r{<div class="book-card">\n(.*?)\n</div>}m) do
    inner = ::Regexp.last_match(1)
    normalized = normalize_book_card_md(inner)
    html = MarkdownUtils.render_markdown_to_html(normalized)
    formatted = format_book_card_inner_html(html)
    "<div class=\"book-card\">\n#{formatted}\n</div>"
  end
end

.convert_container_blocks(content, class_name:) ⇒ Object

:

… 記法で囲まれたコンテナを div に変換。

コードブロック内の :

記法は変換対象外とする。



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# File 'lib/vivlio/starter/cli/pre_process/markdown_transformer.rb', line 171

def convert_container_blocks(content, class_name:)
  opened_count = 0
  closed_count = 0

  # --- Phase: コードブロック退避 ---
  protected_text, spans = MarkdownUtils.extract_code_spans(content)

  pattern = /:::\s*\{\.([^}]+)\}\s*\n(.*?)\n:::\s*(?:\n|$)/m

  converted = protected_text.gsub(pattern) do
    raw_token_str = ::Regexp.last_match(1)
    inner         = ::Regexp.last_match(2)

    raw_tokens = raw_token_str.split
    first_class = raw_tokens.first
    additional_tokens = raw_tokens.drop(1)
    additional_classes = additional_tokens.select { |t| t.start_with?('.') }.map { |c| c.delete_prefix('.') }
    param_tokens = additional_tokens.reject { |t| t.start_with?('.') }

    next ::Regexp.last_match(0) unless first_class == class_name || additional_classes.include?(class_name)

    opened_count += 1
    closed_count += 1

    all_classes = [first_class] + additional_classes
    class_attr = all_classes.join(' ')

    style_parts = []
    param_tokens.each do |token|
      if (m_scale = token.match(/^scale=(.+)$/))
        raw = m_scale[1].strip
        scale_percent = raw.end_with?('%') ? raw.to_f : raw.to_f * 100.0
        scale_int = scale_percent.round
        style_parts << "--table-rotate-scale:#{scale_int}%;"
      end

      next unless (m_shift = token.match(/^shift-y=(.+)$/))

      raw = m_shift[1].strip
      shift_percent = raw.end_with?('%') ? raw.to_f : raw.to_f * 100.0
      shift_int = shift_percent.round
      sign = shift_int.negative? ? '' : '+'
      style_parts << "--table-rotate-shift-y:#{sign}#{shift_int}%;"
    end

    style_attr = style_parts.empty? ? '' : " style=\"#{style_parts.join(' ')}\""

    "<div class=\"#{class_attr}\"#{style_attr}>\n#{inner}\n</div>\n\n"
  end

  # --- Phase: コードブロック復元 ---
  converted = MarkdownUtils.restore_code_spans(converted, spans)

  [converted, opened_count, closed_count]
end

.convert_table_container_inner_markdown(content, class_name) ⇒ Object

<div … class=“… CLASS …” …> … </div> の内側パイプテーブルをHTMLへ変換する汎用メソッド



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# File 'lib/vivlio/starter/cli/pre_process/markdown_transformer.rb', line 118

def convert_table_container_inner_markdown(content, class_name)
  content.gsub(%r{<div\s+([^>]*\bclass="[^"]*\b#{Regexp.escape(class_name)}\b[^"]*"[^>]*)>\s*(.*?)\s*</div>}m) do
    attrs = ::Regexp.last_match(1)
    inner = ::Regexp.last_match(2)

    normalized = "\n\n#{inner.to_s.strip}\n\n"
    html = MarkdownUtils.render_markdown_to_html(normalized).to_s.strip

    if !html.include?('<table') && inner.include?('|')
      table_html = MarkdownUtils.pipe_table_to_html(inner)
      html = table_html if table_html
    end

    "<div #{attrs}>\n#{html}\n</div>"
  end
end

.convert_table_rotate_inner_markdown(content) ⇒ Object

<div … class=“… table-rotate …” …> … </div> の内側MarkdownをHTMLへ



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# File 'lib/vivlio/starter/cli/pre_process/markdown_transformer.rb', line 113

def convert_table_rotate_inner_markdown(content)
  convert_table_container_inner_markdown(content, 'table-rotate')
end

.escape_inline_code_html(line) ⇒ Object

インラインコード内の HTML 予約文字をエスケープする



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# File 'lib/vivlio/starter/cli/pre_process/markdown_transformer.rb', line 228

def escape_inline_code_html(line)
  MarkdownUtils.escape_inline_code_html(line)
end

.format_book_card_inner_html(inner_html) ⇒ Object

book-card の内側を整形



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# File 'lib/vivlio/starter/cli/pre_process/markdown_transformer.rb', line 136

def format_book_card_inner_html(inner_html)
  html = inner_html.to_s.strip

  img_match = html.match(/<img[^>]*>/i)
  return inner_html unless img_match

  img_tag = img_match[0].gsub(%r{\s*/?>}i) { '>' }

  if html.sub!(%r{<p>\s*#{Regexp.escape(img_match[0])}\s*</p>}i, '')
    # removed wrapped <p> with img
  else
    html.sub!(img_match[0], '')
  end

  title_match = html.match(%r{<p>\s*<strong>(.*?)</strong>\s*</p>}im)
  return inner_html unless title_match

  title_text = title_match[1].strip
  html.sub!(title_match[0], '')

  description_html = html.strip

  parts = []
  parts << "  #{img_tag}"
  parts << '  <div class="book-info">'
  parts << "    <p class=\"book-title\">#{title_text}</p>"
  parts << '    <div class="book-description">'
  parts << "      #{description_html}"
  parts << '    </div>'
  parts << '  </div>'
  parts.join("\n")
end

.normalize_book_card_md(md_text) ⇒ Object

book-card 内のMarkdownを事前整形



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# File 'lib/vivlio/starter/cli/pre_process/markdown_transformer.rb', line 85

def normalize_book_card_md(md_text)
  lines = md_text.to_s.split(/\r?\n/, -1)
  out = []
  lines.each_with_index do |line, i|
    out << line
    next_line = lines[i + 1]

    if line.match(/^\s*!\[[^\]]*\]\([^)]+\)\s*$/)
      out << '' if next_line && next_line.strip != ''
    elsif line.match(/^\s*\*\*[^*].*\*\*\s*$/)
      out << '' if next_line && next_line.strip != ''
    end
  end
  out.join("\n")
end

.process_code_include(content, source_filename: nil, source_path: nil) ⇒ Object

“‘include:path“` を検出し、codes/ または絶対パスから読込。マークダウンのコードブロックおよびインラインコード内に記述されたinclude 記法は記法の説明例であるためスキップする。

Parameters:

  • content (String) —

    処理対象の Markdown テキスト

  • source_filename (String, nil) (defaults to: nil) —

    エラーメッセージに表示するソースファイル名

  • source_path (String, nil) (defaults to: nil) —

    元ファイルのパス（行番号補正用）



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# File 'lib/vivlio/starter/cli/pre_process/markdown_transformer.rb', line 238

def process_code_include(content, source_filename: nil, source_path: nil)
  matches_found = 0
  line_number_map = build_line_number_map(content)
  skippable_lines = lines_inside_code_blocks(content)
  inline_code_lines = lines_with_inline_code_include(content)
  source_line_map = build_source_include_line_map(source_path)

  content.gsub!(/```include:([^:`\s]+)(?::(\d+)-(\d+))?\s*```/) do |match|
    # コードブロック内の include 記法はスキップ（記法説明用の例文）
    if (ln = line_number_map[match]) && skippable_lines.include?(ln)
      next match
    end

    # インラインコード内の include 記法はスキップ
    # `` ```include:file.rb``` `` のようにバッククォートで囲まれた場合
    if (ln = line_number_map[match]) && inline_code_lines.include?(ln)
      next match
    end

    matches_found += 1
    original_path = ::Regexp.last_match(1)
    start_line = ::Regexp.last_match(2)&.to_i
    end_line = ::Regexp.last_match(3)&.to_i

    Common.log_action("マッチ発見: #{match.strip}")
    Common.log_info("元のパス: #{original_path}")

    file_path = if original_path.start_with?('/')
                  original_path
                else
                  File.join(Common::CODES_DIR, original_path)
                end
    Common.log_info("解決されたパス: #{file_path}")

    if File.exist?(file_path)
      source_content = File.read(file_path)
      lines = source_content.lines

      code_content = if start_line && end_line
                       selected_lines = lines[(start_line - 1)..(end_line - 1)]
                       selected_lines.join
                     else
                       "#{source_content}\n"
                     end

      language = MarkdownUtils.detect_language(file_path)
      replacement = "```#{language}:#{original_path}\n#{code_content}```"
      Common.log_success("置換完了: #{original_path} (#{language})")

      replacement
    else
      code_name = File.basename(original_path)
      # 元ファイルの行番号があればそちらを使う
      source_ln = source_line_map[original_path] || line_number_map[match]
      if source_filename && source_ln
        Common.log_error(
          "#{source_filename}:#{source_ln} - ソースコード '#{code_name}' が見つかりません",
          detail: "コードの場所: #{file_path}"
        )
        LinkImageValidator.record_code_include_error(source_filename, source_ln, code_name)
      else
        Common.log_error(
          "ソースコード '#{code_name}' が見つかりません",
          detail: "コードの場所: #{file_path}"
        )
        LinkImageValidator.record_code_include_error(source_filename || '(不明)', 0, code_name)
      end
      match
    end
  end

  Common.log_info("#{matches_found}個のinclude記法を処理") if matches_found.positive?
  content
end

.transform_links_to_footnotes(md_text) ⇒ Object

Markdown内のリンク記法を脚注化



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# File 'lib/vivlio/starter/cli/pre_process/markdown_transformer.rb', line 40

def transform_links_to_footnotes(md_text)
  original = md_text.to_s
  text, code_spans = MarkdownUtils.extract_code_spans(original)

  max_n = 0
  text.scan(/\[\^url(\d+)\]:/).each do |m|
    n = m[0].to_i
    max_n = n if n > max_n
  end

  url_id = {}
  replacements = []

  replaced = text.gsub(/(?<!!)\[(.+?)\]\((https?:[^\s)]+)\)(?!\s*\[^url\d+\])/) do |_match|
    label = ::Regexp.last_match(1)
    url   = ::Regexp.last_match(2)
    id = (url_id[url] ||= begin
      max_n += 1
      "url#{max_n}"
    end)
    replacements << [id, url]
    "[#{label}](#{url}) [^#{id}]"
  end

  existing_defs = {}
  text.scan(/\[\^(url\d+)\]:\s*(\S+)/) { |id, u| existing_defs[id] = u }

  new_defs = url_id.filter_map do |u, id|
    next nil if existing_defs.key?(id)

    "[^#{id}]: #{u}"
  end

  result = if new_defs.empty?
             replaced
           elsif replaced.strip.end_with?("\n")
             "#{replaced}\n#{new_defs.join("\n")}\n"
           else
             "#{replaced}\n\n#{new_defs.join("\n")}\n"
           end

  MarkdownUtils.restore_code_spans(result, code_spans)
end