问在没有图像的特定段落上截断

EN

def truncate_by_paragraph(text, num=3)
  # since I'm not sure if the text will have \r, \n or both I'm swapping
  # all \r characters for \n, then splitting at the newlines and removing
  # any blank characters from the array
  array = text.gsub("\r", "\n").split("\n").reject { |i| i == "" }
  array.take(num).join("\n") + ".." # only 2 dots since sentence will already have 1
end

def remove_images(text)
  text.gsub(/<img([^>])+/, "")
end

truncate_by_paragraph(@text) # will return first 3 paragraphs
truncate_by_paragraph(@text, 5) # will return first 5 paragraphs
remove_images(truncate_by_paragraph(@text)) # 3 paragraphs + no images