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earmark_parser

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AST parser and generator for Markdown

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earmark_parser lib earmark_parser ast renderer table_renderer.ex
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lib/earmark_parser/ast/renderer/table_renderer.ex 

defmodule EarmarkParser.Ast.Renderer.TableRenderer do

  @moduledoc false



  alias EarmarkParser.Ast.Inline

  alias EarmarkParser.Context



  import EarmarkParser.Ast.Emitter



  def render_header(header, lnb, aligns, context) do

    {th_ast, context1} =

      header

      |> Enum.zip(aligns)

      |> Enum.map_reduce(context, &_render_col(&1, &2, lnb, "th"))

    {emit("thead", emit("tr", th_ast)), context1}

  end



  def render_rows(rows, lnb, aligns, context) do

    {rows1, context1} =

      rows

        |> Enum.zip(Stream.iterate(lnb, &(&1 + 1)))

        |> Enum.map_reduce(context, &_render_row(&1, &2, aligns))

    {[emit("tbody", rows1)], context1}

  end





  defp _render_cols(row, lnb, aligns, context, coltype \\ "td") do

    row

    |> Enum.zip(aligns)

    |> Enum.map_reduce(context, &_render_col(&1, &2, lnb, coltype))

  end



  defp _render_col({col, align}, context, lnb, coltype) do

    context1 = Inline.convert(col, lnb, Context.clear_value(context))

    {emit(coltype, context1.value |> Enum.reverse, _align_to_style(align)), context1} 

  end



  defp _render_row({row, lnb}, context, aligns) do

    {ast, context1} = _render_cols(row, lnb, aligns, context)

    {emit("tr", ast), context1}

  end



  defp _align_to_style(align)

  defp _align_to_style(:left), do: [{"style", "text-align: left;"}]

  defp _align_to_style(:right), do: [{"style", "text-align: right;"}]

  defp _align_to_style(:center), do: [{"style", "text-align: center;"}]

  defp _align_to_style(_), do: []

end