Method: Howzit::StringUtils#wrap

Defined in:
lib/howzit/stringutils.rb

#wrap(width) ⇒ String

Wrap text at a specified width.

Adapted from https://github.com/pazdera/word_wrap/, copyright (c) 2014, 2015 Radek Pazdera Distributed under the MIT License



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# File 'lib/howzit/stringutils.rb', line 120

def wrap(width)
  width ||= 80
  output = []
  indent = ''

  text = gsub(/\t/, '  ')

  text.lines do |line|
    line.chomp! "\n"
    if line.length > width
      indent = if line.uncolor =~ /^(\s*(?:[+\-*]|\d+\.) )/
                 ' ' * Regexp.last_match[1].length
               else
                 ''
               end
      new_lines = line.split_line(width)

      while new_lines.length > 1 && new_lines[1].length + indent.length > width
        output.push new_lines[0]

        new_lines = new_lines[1].split_line(width, indent)
      end
      output += [new_lines[0], indent + new_lines[1]]
    else
      output.push line
    end
  end
  output.map!(&:rstrip)
  output.join("\n")
end