Module: Polytexnic::Preprocessor::Latex

Included in:
Polytexnic::Preprocessor
Defined in:
lib/polytexnic/preprocessors/latex.rb

Instance Method Summary collapse

Instance Method Details

#clean_latex_document ⇒ Object

Returns LaTeX with hashed versions of literal environments. Literal environments are hashed and passed through the pipeline so that we can process things like refs to hyperrefs using gsubs.



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# File 'lib/polytexnic/preprocessors/latex.rb', line 12

def clean_latex_document
  cache_literal(@polytex, :latex)
end

#polish_tables(text) ⇒ Object 



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# File 'lib/polytexnic/preprocessors/latex.rb', line 16

def polish_tables(text)
  text.tap do
    text.gsub!(/^\s*(\\begin\{table\})/) do
      "#{$1}\n\\begin{center}\n\\small\n"
    end
    text.gsub!(/^\s*(\\end\{table\})/) { "\\end{center}\n#{$1}" }
  end
end

#process_asides(text) ⇒ Object

Processes aside environments. In order to get nice framed & shaded aside boxes, we need to transform the default aside into a new environment.



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# File 'lib/polytexnic/preprocessors/latex.rb', line 28

def process_asides(text)
  # Transform asides with labels and headings.
  aside_regex = /\\begin{aside}\n\s*
                 \\label{(.*?)}\s*
                 \\heading{(.*?)}\n
                 (.*?)
                 \\end{aside}/mx
  text.tap do
    text.gsub!(aside_regex) do
      %(\\begin{shaded_aside}{#{$2}}{#{$1}}\n#{$3}\n\\end{shaded_aside})
    end
  end
end

#to_processed_latex ⇒ Object 



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# File 'lib/polytexnic/preprocessors/latex.rb', line 5

def to_processed_latex
  @polytex = polish_tables(process_asides(clean_latex_document))
end