Method: MaRuKu::Out::Latex#to_latex_code

Defined in:

lib/maruku/output/to_latex.rb

#to_latex_code ⇒ Object

Attribute: latex_use_listings Scope: document Output: latex Summary: Support for ‘listings` package. Related: code_show_spaces, code_background_color, lang, code_lang

If the ‘latex_use_listings` attribute is specified, then code block are rendered using the `listings` package. Otherwise, a standard `verbatim` environment is used.

* If the ‘lang` attribute for the code block has been specified, it gets passed to the `listings` package using the `lstset` macro. The default lang for code blocks is specified through the `code_lang` attribute.

lstsetlanguage=ruby

Please refer to the documentation of the ‘listings` package for supported languages.

If a language is not supported, the ‘listings` package will emit a warning during the compilation. Just press enter and nothing wrong will happen.

* If the ‘code_show_spaces` is specified, than spaces and tabs will be shown using the macro:

lstsetshowspaces=true,showtabs=true

* The background color is given by ‘code_background_color`.

# File 'lib/maruku/output/to_latex.rb', line 251

def to_latex_code;
	raw_code = self.raw_code
	
	if get_setting(:latex_use_listings)
		@doc.latex_require_package('listings')
			
		s = "\\lstset{columns=fixed,frame=shadowbox}"

		if get_setting(:code_show_spaces) 
			s+= "\\lstset{showspaces=true,showtabs=true}\n"
		else
			s+= "\\lstset{showspaces=false,showtabs=false}\n"
		end
		
		color = latex_color get_setting(:code_background_color)
		
		s+= "\\lstset{backgroundcolor=#{color}}\n" 
		
		s+= "\\lstset{basicstyle=\\ttfamily\\footnotesize}\n" 
		
		
		lang = self.attributes[:lang] || @doc.attributes[:code_lang] || '{}'
		if lang
			s += "\\lstset{language=#{lang}}\n"
		end
		
		"#{s}\n\\begin{lstlisting}\n#{raw_code}\n\\end{lstlisting}"
	else
		"\\begin{verbatim}#{raw_code}\\end{verbatim}\n"
	end
end