Method: Fable::StoryState#clean_output_whitespace

Defined in:
lib/fable/story_state.rb

#clean_output_whitespace(string) ⇒ Object

Cleans inline whitespace in the following way:

  • Removes all whitespace from the start/end of line (including just before an n)

  • Turns all consecutive tabs & space runs into single spaces (HTML-style)



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# File 'lib/fable/story_state.rb', line 404

def clean_output_whitespace(string)
  x = ""

  current_whitespace_start = -1
  start_of_line = 0

  string.each_char.with_index do |character, i|
    is_inline_whitespace = (character == " " || character == "\t")

    if is_inline_whitespace && current_whitespace_start == -1
      current_whitespace_start = i
    end

    if !is_inline_whitespace
      if(character != "\n" && (current_whitespace_start > 0) && current_whitespace_start != start_of_line)
        x += " "
      end

      current_whitespace_start = -1
    end

    if character == "\n"
      start_of_line = i + 1
    end

    if !is_inline_whitespace
      x << character
    end
  end

  return x

  # x = string.each_line(chomp: true).map do |line|
  #   if line.empty?
  #     nil
  #   else
  #     line.strip.gsub(MULTIPLE_WHITESPACE_REGEX, ' ') + "\n"
  #   end
  # end
  # cleaned_string = x.compact.join("\n")

  # cleaned_string
end