class ReadXls::Evaluator::Formula
Attributes
builder[RW]
result_bytes[RW]
result_number[RW]
Public Class Methods
new(builder, result_test, result_bytes)
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# File lib/read_xls/evaluator/formula.rb, line 6 def initialize(builder, result_test, result_bytes) self.builder = builder self.result_number = result_test != 0xFFFF self.result_bytes = result_bytes end
Public Instance Methods
evaluate()
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# File lib/read_xls/evaluator/formula.rb, line 12 def evaluate if result_number? result_bytes.unpack("E").first elsif result_string? builder.next_formula_string! elsif result_boolerr? raise NotImplementedError else raise NotImplementedError, "can't figure out what type of formula this is" end end
result_number?()
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# File lib/read_xls/evaluator/formula.rb, line 24 def result_number? result_number end
result_string?()
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# File lib/read_xls/evaluator/formula.rb, line 28 def result_string? !result_number? && result_bytes.byteslice(0, 1).unpack("C").first == 0 end