使用Nokogiri替换< img src />标记<％= image_tag％&gt ;？ [英] Use Nokogiri to replace <img src /> tags with <%= image_tag %>?

问题描述

如何使用nokogiri将所有img标签替换为图像标签？

How can I use nokogiri to replace all img tags with image tags? This is to utilize Rails' ability to plugin the correct asset server automatically?

require 'nokogiri'

class ToImageTag

  def self.convert
    Dir.glob("app/views/**/*").each do |filename|
      doc = Nokogiri::HTML(File.open(filename))
      doc.xpath("//img").each |img_tags|
        # grab the src and all the attributes and move them to ERB
      end

    # rewrite the file
    end

  rescue => err
    puts "Exception: #{err}"
  end

end

推荐答案

受到maerics响应的启发，我创建了一个脚本来执行此操作。 HTML实体没有问题，因为它仅使用nokogiri输出作为替换指南。实际的替换是通过使用String＃gsub！

Somewhat inspired by maerics' response, I've created a script that does this. It doesn't have an issue with HTML entities because it only uses the nokogiri output as a guide for replacement. The actual replacement is done by using String#gsub!

https完成的：//gist.github.com/1254319

这篇关于使用Nokogiri替换< img src />标记<％= image_tag％&gt ;？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！