Method: GLI::Commands::HelpModules::TextWrapper#wrap

Defined in:
lib/gli/commands/help_modules/text_wrapper.rb

#wrap(text) ⇒ Object

Return a wrapped version of text, assuming that the first line has already been indented by @indent characters. Resulting text does NOT have a newline in it.



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# File 'lib/gli/commands/help_modules/text_wrapper.rb', line 15

def wrap(text)
  return text if text.nil?
  wrapped_text = ''
  current_graf = ''

  paragraphs = text.split(/\n\n+/)
  paragraphs.each do |graf|
    current_line = ''
    current_line_length = @indent

    words = graf.split(/\s+/)
    current_line = words.shift || ''
    current_line_length += current_line.length

    words.each do |word|
      if current_line_length + word.length + 1 > @width
        current_graf << current_line << "\n"
        current_line = ''
        current_line << ' ' * @indent << word
        current_line_length = @indent + word.length
      else
        if current_line == ''
          current_line << word
        else
          current_line << ' ' << word
        end
        current_line_length += (word.length + 1)
      end
    end
    current_graf << current_line
    wrapped_text << current_graf  << "\n\n" << ' ' * @indent
    current_graf = ''
  end
  wrapped_text.gsub(/[\n\s]*\Z/,'')
end