module LogStash::Filters::MathCalculationElements
Constants
- REGISTER_REFERENCE_RE
Public Class Methods
build(reference, position)
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# File lib/logstash/filters/math_calculation_elements.rb, line 8 def self.build(reference, position) case reference when Numeric if position == 3 # literal reference for result element nil else LiteralElement.new(reference, position) end when String match = REGISTER_REFERENCE_RE.match(reference) if match RegisterElement.new(reference, position, match[1].to_i) else FieldElement.new(reference, position) end else nil end end