Rosetta Code

Word wrap

Wrap a paragraph with the standard greedy algorithm at two different column widths.

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Sourcerosettacode/popular/word_wrap.vibe
def word_wrap(text: string, width: int) -> array<string>
  words = text.split
  lines: array<string> = []
  current = ""
  index = 0

  while index < words.length
    word = words.fetch(index)
    if current == ""
      current = word
    elsif current.length + 1 + word.length <= width
      current = current + " " + word
    else
      lines = lines + [current]
      current = word
    end
    index = index + 1
  end

  if current != ""
    lines = lines + [current]
  end

  lines
end

def sample_text -> string
  "In olden times when wishing still helped one, there lived a king whose " +
    "daughters were all beautiful, but the youngest was so beautiful that the " +
    "sun itself, which has seen so much, was astonished whenever it shone in her face."
end

def run -> { width_32: array<string>, width_48: array<string> }
  text = sample_text
  {
    width_32: word_wrap(text, 32),
    width_48: word_wrap(text, 48)
  }
end

Output

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