Class: RDoc::Markup::ToHtmlCrossref

# File 'lib/rdoc/markup/to_html_crossref.rb', line 24

attr_accessor :show_hash

# File 'lib/rdoc/markup/to_html_crossref.rb', line 59

def cross_reference(name, text = nil, code = true, rdoc_ref: false)
  lookup = name

  name = name[1..-1] unless @show_hash if name[0, 1] == '#'

  if !name.end_with?('+@', '-@') && match = name.match(/(.*[^#:])?@(.*)/)
    context_name = match[1]
    label = RDoc::Text.decode_legacy_label(match[2])
    text ||= "#{label} at <code>#{context_name}</code>" if context_name
    text ||= label
    code = false
  else
    text ||= name
  end

  link lookup, text, code, rdoc_ref: rdoc_ref
end

# File 'lib/rdoc/markup/to_html_crossref.rb', line 140

def gen_url(url, text)
  if url =~ /\Ardoc-ref:/
    name = $'
    cross_reference name, text, name == text, rdoc_ref: true
  else
    super
  end
end

# File 'lib/rdoc/markup/to_html_crossref.rb', line 84

def handle_regexp_CROSSREF(name)
  return convert_string(name) if in_tidylink_label?
  return name if @options.autolink_excluded_words&.include?(name)

  return name if name =~ /@[\w-]+\.[\w-]/ # labels that look like emails

  unless @hyperlink_all then
    # This ensures that words entirely consisting of lowercase letters will
    # not have cross-references generated (to suppress lots of erroneous
    # cross-references to "new" in text, for instance)
    return name if name =~ /\A[a-z]*\z/
  end

  cross_reference name, rdoc_ref: false
end

# File 'lib/rdoc/markup/to_html_crossref.rb', line 104

def handle_regexp_HYPERLINK(url)
  return convert_string(url) if in_tidylink_label?

  case url
  when /\Ardoc-ref:/
    cross_reference $', rdoc_ref: true
  else
    super
  end
end

# File 'lib/rdoc/markup/to_html_crossref.rb', line 123

def handle_regexp_RDOCLINK(url)
  case url
  when /\Ardoc-ref:/
    if in_tidylink_label?
      convert_string(url)
    else
      cross_reference $', rdoc_ref: true
    end
  else
    super
  end
end

# File 'lib/rdoc/markup/to_html_crossref.rb', line 209

def handle_TT(code)
  emit_inline(tt_cross_reference(code) || "<code>#{CGI.escapeHTML code}</code>")
end

# File 'lib/rdoc/markup/to_html_crossref.rb', line 46

def init_link_notation_regexp_handlings
  add_regexp_handling_RDOCLINK

  # The crossref must be linked before tidylink because Klass.method[:sym]
  # will be processed as a tidylink first and will be broken.
  crossref_re = @options.hyperlink_all ? ALL_CROSSREF_REGEXP : CROSSREF_REGEXP
  @markup.add_regexp_handling crossref_re, :CROSSREF
end

# File 'lib/rdoc/markup/to_html_crossref.rb', line 152

def link(name, text, code = true, rdoc_ref: false)
  if !(name.end_with?('+@', '-@')) and name =~ /(.*[^#:])?@/
    name = $1
    label = $'
  end

  ref = @cross_reference.resolve name, text if name

  case ref
  when String then
    if rdoc_ref && @options.warn_missing_rdoc_ref
      puts "#{@from_path}: `rdoc-ref:#{name}` can't be resolved for `#{text}`"
    end
    ref
  else
    path = ref ? ref.as_href(@from_path) : +""

    if code and RDoc::CodeObject === ref and !(RDoc::TopLevel === ref)
      text = "<code>#{CGI.escapeHTML text}</code>"
    end

    if label
      # Decode legacy labels (e.g., "What-27s+Here" -> "What's Here")
      # then convert to GitHub-style anchor format
      decoded_label = RDoc::Text.decode_legacy_label(label)
      formatted_label = RDoc::Text.to_anchor(decoded_label)

      # Case 1: Path already has an anchor (e.g., method link)
      #   Input:  C1#method@label -> path="C1.html#method-i-m"
      #   Output: C1.html#method-i-m-label
      if path =~ /#/
        path << "-#{formatted_label}"

      # Case 2: Label matches a section title
      #   Input:  C1@Section -> path="C1.html", section "Section" exists
      #   Output: C1.html#section (uses section.aref for GitHub-style)
      elsif (section = ref&.sections&.find { |s| decoded_label == s.title })
        path << "##{section.aref}"

      # Case 3: Ref has an aref (class/module context)
      #   Input:  C1@heading -> path="C1.html", ref=C1 class
      #   Output: C1.html#class-c1-heading
      elsif ref.respond_to?(:aref)
        path << "##{ref.aref}-#{formatted_label}"

      # Case 4: No context, just the label (e.g., TopLevel/file)
      #   Input:  README@section -> path="README_md.html"
      #   Output: README_md.html#section
      else
        path << "##{formatted_label}"
      end
    end

    "<a href=\"#{path}\">#{text}</a>"
  end
end

# File 'lib/rdoc/markup/to_html_crossref.rb', line 224

def tt_cross_reference(code)
  return if in_tidylink_label?

  crossref_regexp = @options.hyperlink_all ? ALL_CROSSREF_REGEXP : CROSSREF_REGEXP
  match = crossref_regexp.match(code)
  return unless match && match.begin(1).zero?
  return unless match.post_match.match?(/\A[[:punct:]\s]*\z/)

  ref = cross_reference(code)
  ref if ref != code
end