Class: LlmDocsBuilder::HtmlToMarkdown::TableMarkupRenderer

Inherits:
Object
  • Object
show all
Defined in:
lib/llm_docs_builder/html_to_markdown/table_markup_renderer.rb

Overview

Handles conversion of HTML table markup to Markdown table format

Instance Method Summary collapse

Constructor Details

#initialize(inline_collapser:, block_renderer:) ⇒ TableMarkupRenderer

Initialize a new table markup renderer

Parameters:

  • inline_collapser (Proc) —

    callable for collapsing inline content

  • block_renderer (Proc) —

    callable for rendering block elements



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# File 'lib/llm_docs_builder/html_to_markdown/table_markup_renderer.rb', line 11

def initialize(inline_collapser:, block_renderer:)
  @inline_collapser = inline_collapser
  @block_renderer = block_renderer
end

Instance Method Details

#render_table(table_node) ⇒ String

Main entry point for rendering HTML tables to Markdown

Parameters:

  • table_node (Nokogiri::XML::Node) —

    the HTML table element to convert

Returns:

  • (String) —

    markdown table or HTML if table cannot be converted



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# File 'lib/llm_docs_builder/html_to_markdown/table_markup_renderer.rb', line 20

def render_table(table_node)
  return table_node.to_html if table_contains_nested_tables?(table_node)
  return render_table_with_rowspan_cells(table_node) if table_contains_rowspan_cells?(table_node)
  return render_table_with_colspan_cells(table_node) if table_contains_colspan_cells?(table_node)

  caption_text = caption_text_for(table_node)

  rows = table_node.css('tr').map do |row|
    cells = row.element_children.select { |child| %w[th td].include?(child.name.downcase) }
    next if cells.empty?

    header_candidate = row.ancestors('thead').any? ||
                       cells.all? { |cell| cell.name.casecmp('th').zero? }

    {
      header: header_candidate,
      values: cells.map { |cell| render_table_cell(cell) }
    }
  end.compact
  return '' if rows.empty?

  header_index = rows.find_index { |row| row[:header] }

  if header_index
    header_values = rows[header_index][:values]
    data_values = rows.each_with_index.filter_map do |row, index|
      next if index == header_index

      row[:values]
    end
  else
    header_values = rows.first[:values]
    data_values = rows.drop(1).map { |row| row[:values] }
  end

  column_count = [header_values.length, data_values.map(&:length).max || 0].max
  column_count = 1 if column_count.zero?

  header = pad_table_row(header_values, column_count)
  data_rows = data_values.map { |row| pad_table_row(row, column_count) }

  header_cells = header.map { |value| table_cell_data(value) }
  data_cells = data_rows.map { |row| row.map { |value| table_cell_data(value) } }

  column_specs = compute_table_column_specs(header_cells, data_cells)
  column_widths = column_specs.map { |spec| spec[:width] }

  lines = []
  lines.concat(format_table_row(header_cells, column_specs))
  lines << render_table_separator(column_widths)
  data_cells.each do |row_cells|
    lines.concat(format_table_row(row_cells, column_specs))
  end

  table_markdown = lines.join("\n")

  with_optional_caption(caption_text, table_markdown)
end