Method: String#reformat

Defined in:
lib/whisper/common.rb

#reformat(width) ⇒ Object 



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# File 'lib/whisper/common.rb', line 108

def reformat width
  lines = []
  body = self.clone

  if body =~ /\A(\n+)/ # preserve any leading newlines
    newlines = $1
    lines << newlines
    body = body[newlines.size .. -1]
  end

  while body
    newline_point = body.index(/\n([\n\*\#])/) || width

    split_point, appendage = if newline_point < width
      [newline_point + 1, "\n#{$1}"]
    elsif body.length < width
      [body.length, "\n"]
    else # regular: find a split point
      split_point = body.rindex(/\s/, width) # look backwards
      split_point ||= body.index(/\s/, width) # nope, look forward 
      split_point ||= body.length # nope, use everything (don't think this will ever occur)
      [split_point, "\n"]
    end

    start_split = split_point - 1
    start_split -= 1 while start_split > 0 && [?\ , ?\n].include?(body[start_split])

    lines << body[0 .. start_split].chomp.gsub(/\n/, " ") + appendage
    body = body[(split_point + 1) .. -1]
  end

  lines << body if body
  lines.pop if lines.last == "\n"
  lines.join("")
end