Show a string of certain length without truncating

Question

I am displaying a string of certain length in ruby. only 80 characters of that string can be displayed in one line. for example if string length is 82 then it will be shown

Answer 1

A very quick and dirty, iterative version:

max_chars = 80
text = 'Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.'

lines = []
words = text.split

while words.length > 0
  line = words.shift

  while words.first && (line.length + words.first.length + 1) <= max_chars
    line << " #{words.shift}" 
  end

  lines << line
end

lines.each { |line|  puts line }
#=> Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod
#   tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At
#   vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren,
#   no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit
#   amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut
#   labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam
#   et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata
#   sanctus est Lorem ipsum dolor sit amet.