Class: PandocAbnt::FiguraFilter

Inherits:
Object
  • Object
show all
Defined in:
lib/pandoc_abnt/figura_filter.rb

Overview

Essa classe é responsável por

See Also:

  • Trabalho#configuracao

Instance Method Summary collapse

Instance Method Details

#convert_to_latex(node) ⇒ Object

Converte node para latex



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# File 'lib/pandoc_abnt/figura_filter.rb', line 54

def convert_to_latex(node)
  latex_code = nil
  Open3.popen3("pandoc -f json -t latex --wrap=none") {|stdin, stdout, stderr, wait_thr|
    stdin.write(node.to_json)
    stdin.close  # stdin, stdout and stderr should be closed explicitly in this form.
    latex_code = stdout.read

    pid = wait_thr.pid # pid of the started process.
    exit_status = wait_thr.value # Process::Status object returned.
  }
  latex_code
end

#filtra_json(pandoc_json_tree) ⇒ Object 



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# File 'lib/pandoc_abnt/figura_filter.rb', line 67

def filtra_json(pandoc_json_tree)
  # Exemplo de código:
  # [{"unMeta":{}},[{"t":"Para","c":[{"t":"Image","c":[["id",[],[["width","30%"]]],[{"t":"Str","c":"Título"}],["imagem.png","fig:"]]}]},{"t":"Para","c":[{"t":"Str","c":"Fonte:"},{"t":"Space","c":[]},{"t":"Str","c":"Autor."}]}]]
  tree = JSON.parse(pandoc_json_tree)
  meta = tree["meta"]
  blocks = tree["blocks"]
  api = tree["pandoc-api-version"]
  
  filtrados = []
  anterior = nil
  
  if not blocks
    raise ArgumentError, "Problema no argumento passado: #{pandoc_json_tree}"
  end
  
  blocks.each do |node|
    
    if (fonte?(node) and imagem?(anterior)) then
      imagem_latex = convert_to_latex({"blocks"=>[anterior], "pandoc-api-version" => api, "meta" => meta})
      fonte_latex = convert_to_latex({"blocks"=>[node], "pandoc-api-version" => api, "meta" => meta})
      texcode = reformata_figura_latex(imagem_latex, fonte_latex)
      raw_tex = {"t"=>"RawBlock","c"=>["latex",texcode]}
      
      filtrados.pop # remote o anterior
      filtrados << raw_tex
    elsif (fonte?(node) and tabela?(anterior)) then
      tabela_latex = convert_to_latex({"blocks"=>[anterior], "pandoc-api-version" => api, "meta" => meta})
      fonte_latex = convert_to_latex({"blocks"=>[node], "pandoc-api-version" => api, "meta" => meta})
      texcode = reformata_tabela_latex(tabela_latex, fonte_latex)
      raw_tex = {"t"=>"RawBlock","c"=>["latex",texcode.strip]}
      
      filtrados.pop # remote o anterior
      filtrados << raw_tex
    else
      filtrados << node
    end
    
    anterior = node
  end
   
  JSON.generate({"blocks"=>filtrados, "pandoc-api-version" => api, "meta" => meta})
  
  
#      result = <<-LATEX [{"unMeta":{}},[{"t":"RawBlock","c":["latex","\\begin{figure}[htbp]\n\\caption{Legenda da figura}\\label{id}\n\\begin{center}\n\\includegraphics[width=0.30000\\textwidth]{imagem.png}\n\\end{center}\n\\legend{Fonte: Autor.}\n\\end{figure}"]}]]

end

#fonte?(node) ⇒ Boolean

Verifica se node é um parágrafo que inicia com “Fonte:”

Returns:

  • (Boolean) 


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# File 'lib/pandoc_abnt/figura_filter.rb', line 34

def fonte?(node)
# {"t":"Para","c":[{"t":"Str","c":"Fonte:"},{"t":"Space","c":[]},{"t":"Str","c":"Autor."}]}
  node["t"] == "Para" and node["c"][0]["c"] == "Fonte:"
end

#imagem?(node) ⇒ Boolean

Verifica se node contém apenas uma imagem

Returns:

  • (Boolean) 


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# File 'lib/pandoc_abnt/figura_filter.rb', line 40

def imagem?(node)
# {"t":"Para","c":[{"t":"Image","c":[["id",[],[["width","30%"]]],[{"t":"Str","c":"Título"}],["imagem.png","fig:"]]}]}

  node["t"] == "Para" and node["c"][0]["t"] == "Image"
end

#reformata_figura_latex(latex_code, fonte) ⇒ Object 



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# File 'lib/pandoc_abnt/figura_filter.rb', line 10

def reformata_figura_latex(latex_code, fonte)
image_regex = /\\includegraphics.*/
caption_regex = /\\caption.*/

figura_abntex = "\\\\begin{figure}[htbp]\n\#{latex_code.match caption_regex}\n\\\\begin{center}\n\#{latex_code.match image_regex}\n\\\\end{center}\n\\\\legend{\#{fonte.strip}}\n\\\\end{figure}\n"
end

#reformata_tabela_latex(latex_code, fonte) ⇒ Object 



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# File 'lib/pandoc_abnt/figura_filter.rb', line 25

def reformata_tabela_latex(latex_code, fonte)
  inicio = latex_code.lines[0..-2].join ""
  abntex_code = "\#{inicio}\\\\caption*{\#{fonte.strip}}\n\\\\end{longtable}\n"
end

#tabela?(node) ⇒ Boolean

Verifica se node é uma tabela

Returns:

  • (Boolean) 


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# File 'lib/pandoc_abnt/figura_filter.rb', line 47

def tabela?(node)
# {"t":"Table","c":[[{"t":"Str","c":"Demonstration"},{"t":"Space"},{"t":"Str","c":"of"},{"t":"Space"},{"t":"Str","c":"simple"},{"t":"Space"},{"t":"Str","c":"table"},{"t":"Space"},{"t":"Str","c":"syntax."},{"t":"Space"},{"t":"RawInline","c":["tex","\\label{mytable}"]}],[{"t":"AlignRight"},{"t":"AlignLeft"},{"t":"AlignCenter"},{"t":"AlignDefault"}],[0,0,0,0],[[{"t":"Plain","c":[{"t":"Str","c":"Right"}]}],[{"t":"Plain","c":[{"t":"Str","c":"Left"}]}],[{"t":"Plain","c":[{"t":"Str","c":"Center"}]}],[{"t":"Plain","c":[{"t":"Str","c":"Default"}]}]],[[[{"t":"Plain","c":[{"t":"Str","c":"12"}]}],[{"t":"Plain","c":[{"t":"Str","c":"12"}]}],[{"t":"Plain","c":[{"t":"Str","c":"12"}]}],[{"t":"Plain","c":[{"t":"Str","c":"12"}]}]],[[{"t":"Plain","c":[{"t":"Str","c":"123"}]}],[{"t":"Plain","c":[{"t":"Str","c":"123"}]}],[{"t":"Plain","c":[{"t":"Str","c":"123"}]}],[{"t":"Plain","c":[{"t":"Str","c":"123"}]}]],[[{"t":"Plain","c":[{"t":"Str","c":"1"}]}],[{"t":"Plain","c":[{"t":"Str","c":"1"}]}],[{"t":"Plain","c":[{"t":"Str","c":"1"}]}],[{"t":"Plain","c":[{"t":"Str","c":"1"}]}]]]]}
  node["t"] == "Table"
end