Method: Dphil::TeiXML#crop

Defined in:
lib/dphil/tei_xml.rb

#crop(expr) ⇒ Object

Public: Return a portion of the document as a new document

expr - a CSS selector or XPath expression

Returns a new document.



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# File 'lib/dphil/tei_xml.rb', line 40

def crop(expr)
  segment = xml.search(expr)
  pb = page_of(segment)
  lb = line_of(segment)

  source = <<~EOS
    <TEI version="5.0" xmlns="http://www.tei-c.org/ns/1.0">
      <pre>#{pb&.to_xml}#{lb&.to_xml}</pre>
      #{segment.to_xml}
      <post></post>
    </TEI>
  EOS
  self.class.new(source)
end