Sample use of Pericope

Sample use of Pericope

    @query = params[:query]
    pretty_keywords = []
    index_keywords = []

    Pericope.split(@query, /[\r\n,;]/).each do |keyword|
      if keyword.is_a?(Pericope)
        pretty_keywords << keyword.to_s
        index_keywords << "(#{keyword.to_a.join(" | ")})"
      else
        keyword = keyword.strip
        if keyword.length > 0
          p keyword
          pretty_keywords << keyword
          index_keywords << keyword
        end
      end
    end

This example assumes that Bible references like Romans 3:1-3 are allowed as keywords on products. But 'Romans 3:1-3' is not indexed as plain text; instead it is indexed as an array of unique identifiers for Bible verses: ([45003001, 45003002, 45003003]) where 45 is the book number, 003 the chapter, and the least significant digits are the verse.

The Pericope class serializes and deserializes plain text Bible references as arrays of ranges of these unique identifiers.

This example uses the Pericope class to extract Bible references from a search query along with plain text keywords. It yields each keyword either as an instance of String or an instance of Pericope to the block. The to_a method of Pericope returns an array of Bible verse identifiers.