Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/text.rb

Instance Method Summary collapse

Instance Method Details

#eighty ⇒ Object

Divides a string up into 80-character lines.



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# File 'lib/text.rb', line 32

def eighty
  self.line_divide(80)
end

#line_divide(n) ⇒ Object

Divides a string up into n-character lines. Pushes a word down onto the next line if it doesn’t fit, like on a page in a book.



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# File 'lib/text.rb', line 5

def line_divide(n)
  answer = []
  src = self.chars

  loop do # for each line...
    # remove any leading space from the line
    src = src.join.strip.split('')

    case src[n-1] # checks the nth character
    when ' ', '-'
      answer << src.shift(n).join
    when nil # if line < n characters
      answer << src.shift(n).join
      break
    else # if n+1th character is not ' ' or '-'
      if src[n] == ' '
        answer << src.shift(n).join
      else  # if nth character is mid-word
        i = (/[ -]/ =~ src[0,n].join.reverse)
        answer << src.shift(n - i).join
      end
    end
  end
  answer.join("\n")
end