Class: Scrubyt::AttributeFilter

Inherits:
BaseFilter show all
Defined in:
lib/scrubyt/core/scraping/filters/attribute_filter.rb

Constant Summary

Constants inherited from BaseFilter

BaseFilter::EXAMPLE_TYPE_CHILDREN, BaseFilter::EXAMPLE_TYPE_COMPOUND, BaseFilter::EXAMPLE_TYPE_IMAGE, BaseFilter::EXAMPLE_TYPE_REGEXP, BaseFilter::EXAMPLE_TYPE_STRING, BaseFilter::EXAMPLE_TYPE_XPATH

Instance Attribute Summary

Attributes inherited from BaseFilter

#constraints, #example, #example_type, #final_result, #parent_pattern, #regexp, #temp_sink, #xpath

Instance Method Summary collapse

Methods inherited from BaseFilter

create, #method_missing, #throw_method_missing

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Scrubyt::BaseFilter

Instance Method Details

#evaluate(source) ⇒ Object 



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# File 'lib/scrubyt/core/scraping/filters/attribute_filter.rb', line 4

def evaluate(source)
  elem = XPathUtils.find_nearest_node_with_attribute(source, @example)
  if elem.is_a? Hpricot::Elem
    return [elem.attributes[@example]]
  else
    return nil
  end
end

#to_sexp ⇒ Object 



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# File 'lib/scrubyt/core/scraping/filters/attribute_filter.rb', line 13

def to_sexp
  [:str, @example]
end