Class: CSVDecision::Matchers::Numeric Private

Inherits:
Matcher
  • Object
show all
Defined in:
lib/csv_decision/matchers/numeric.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Recognise numeric comparison expressions - e.g., > 100 or != 0

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Matcher

#initialize, #ins?, #outs?

Constructor Details

This class inherits a constructor from CSVDecision::Matchers::Matcher

Class Method Details

.matches?(cell) ⇒ false, CSVDecision::Proc

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns false if this cell is not a match; otherwise returns the CSVDecision::Proc object indicating if this is a constant or some type of function.

Parameters:

  • cell (String) —

    Data row cell.

Returns:

  • (false, CSVDecision::Proc) —

    Returns false if this cell is not a match; otherwise returns the CSVDecision::Proc object indicating if this is a constant or some type of function.



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# File 'lib/csv_decision/matchers/numeric.rb', line 30

def self.matches?(cell)
  match = COMPARISON.match(cell)
  return false unless match

  numeric_cell = Matchers.to_numeric(match['value'])
  return false unless numeric_cell

  comparator = match['comparator']
  Matchers::Proc.new(type: :proc,
                     function: COMPARATORS[comparator].curry[numeric_cell].freeze)
end

Instance Method Details

#matches?(cell) ⇒ false, CSVDecision::Proc

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns false if this cell is not a match; otherwise returns the CSVDecision::Proc object indicating if this is a constant or some type of function.

Parameters:

  • cell (String) —

    Data row cell.

Returns:

  • (false, CSVDecision::Proc) —

    Returns false if this cell is not a match; otherwise returns the CSVDecision::Proc object indicating if this is a constant or some type of function.



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# File 'lib/csv_decision/matchers/numeric.rb', line 44

def matches?(cell)
  Numeric.matches?(cell)
end