escapeElement() in Ruby

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escapeElement(string, *elements)

Escape only the tags of certain HTML elements in string.

Takes an element or elements or array of elements. Each element is specified by the name of the element, without angle brackets. This matches both the start and the end tag of that element. The attribute list of the open tag will also be escaped (for instance, the double-quotes surrounding attribute values).

  print CGI::escapeElement('<BR><A HREF="url"></A>', "A", "IMG")
    # "<BR>&lt;A HREF=&quot;url&quot;&gt;&lt;/A&gt"

  print CGI::escapeElement('<BR><A HREF="url"></A>', ["A", "IMG"])
    # "<BR>&lt;A HREF=&quot;url&quot;&gt;&lt;/A&gt"

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