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# frozen_string_literal: true
require "set"
require_relative "../converter"
require_relative "boolean"
require_relative "numeric"
module Necromancer
# Container for Array converter classes
module ArrayConverters
ARRAY_MATCHER = /^(.+?(\s*(?<sep>(,|-))\s*))+/x.freeze
# An object that converts a String to an Array
class StringToArrayConverter < Converter
# Convert string value to array
#
# @example
# converter.call("a, b, c") # => ["a", "b", "c"]
#
# @example
# converter.call("1 - 2 - 3") # => ["1", "2", "3"]
#
# @api public
def call(value, strict: config.strict)
return [] if value.to_s.empty?
if match = value.to_s.match(ARRAY_MATCHER)
value.to_s.split(match[:sep])
else
strict ? raise_conversion_type(value) : Array(value)
end
end
end
class StringToBooleanArrayConverter < Converter
# @example
# converter.call("t,f,yes,no") # => [true, false, true, false]
#
# @param [Array] value
# the array value to boolean
#
# @api public
def call(value, strict: config.strict)
array_converter = StringToArrayConverter.new(:string, :array)
array = array_converter.(value, strict: strict)
bool_converter = ArrayToBooleanArrayConverter.new(:array, :boolean)
bool_converter.(array, strict: strict)
end
end
class StringToIntegerArrayConverter < Converter
# @example
# converter.call("1,2,3") # => [1, 2, 3]
#
# @api public
def call(string, strict: config.strict)
array_converter = StringToArrayConverter.new(:string, :array)
array = array_converter.(string, strict: strict)
int_converter = ArrayToIntegerArrayConverter.new(:array, :integers)
int_converter.(array, strict: strict)
end
end
class StringToFloatArrayConverter < Converter
# @example
# converter.call("1,2,3") # => [1.0, 2.0, 3.0]
#
# @api public
def call(string, strict: config.strict)
array_converter = StringToArrayConverter.new(:string, :array)
array = array_converter.(string, strict: strict)
float_converter = ArrayToFloatArrayConverter.new(:array, :floats)
float_converter.(array, strict: strict)
end
end
class StringToNumericArrayConverter < Converter
# Convert string value to array with numeric values
#
# @example
# converter.call("1,2.0,3") # => [1, 2.0, 3]
#
# @api public
def call(string, strict: config.strict)
array_converter = StringToArrayConverter.new(:string, :array)
array = array_converter.(string, strict: strict)
num_converter = ArrayToNumericArrayConverter.new(:array, :numeric)
num_converter.(array, strict: strict)
end
end
class ArrayToIntegerArrayConverter < Converter
# @example
# converter.call(["1", "2", "3"]) # => [1, 2, 3]
#
# @api public
def call(array, strict: config.strict)
int_converter = NumericConverters::StringToIntegerConverter.new(:string,
:integer)
array.map { |val| int_converter.(val, strict: strict) }
end
end
class ArrayToFloatArrayConverter < Converter
# @example
# converter.call(["1", "2", "3"]) # => [1.0, 2.0, 3.0]
#
# @api public
def call(array, strict: config.strict)
float_converter = NumericConverters::StringToFloatConverter.new(:string,
:float)
array.map { |val| float_converter.(val, strict: strict) }
end
end
# An object that converts an array to an array with numeric values
class ArrayToNumericArrayConverter < Converter
# Convert an array to an array of numeric values
#
# @example
# converter.call(["1", "2.3", "3.0]) # => [1, 2.3, 3.0]
#
# @param [Array] value
# the value to convert
#
# @api public
def call(value, strict: config.strict)
num_converter = NumericConverters::StringToNumericConverter.new(:string,
:numeric)
value.map { |val| num_converter.(val, strict: strict) }
end
end
# An object that converts an array to an array with boolean values
class ArrayToBooleanArrayConverter < Converter
# @example
# converter.call(["t", "f", "yes", "no"]) # => [true, false, true, false]
#
# @param [Array] value
# the array value to boolean
#
# @api public
def call(value, strict: config.strict)
bool_converter = BooleanConverters::StringToBooleanConverter.new(:string,
:boolean)
value.map { |val| bool_converter.(val, strict: strict) }
end
end
# An object that converts an object to an array
class ObjectToArrayConverter < Converter
# Convert an object to an array
#
# @example
# converter.call({x: 1}) # => [[:x, 1]]
#
# @api public
def call(value, strict: config.strict)
Array(value)
rescue StandardError
strict ? raise_conversion_type(value) : value
end
end
# An object that converts an array to a set
class ArrayToSetConverter < Converter
# Convert an array to a set
#
# @example
# converter.call([:x, :y, :x, 1, 2, 1]) # => <Set: {:x, :y, 1, 2}>
#
# @param [Array] value
# the array to convert
#
# @api public
def call(value, strict: config.strict)
value.to_set
rescue StandardError
strict ? raise_conversion_type(value) : value
end
end
def self.load(conversions)
[
NullConverter.new(:array, :array),
StringToArrayConverter.new(:string, :array),
StringToBooleanArrayConverter.new(:string, :bools),
StringToBooleanArrayConverter.new(:string, :booleans),
StringToIntegerArrayConverter.new(:string, :integers),
StringToIntegerArrayConverter.new(:string, :ints),
StringToFloatArrayConverter.new(:string, :floats),
StringToNumericArrayConverter.new(:string, :numerics),
StringToNumericArrayConverter.new(:string, :nums),
ArrayToNumericArrayConverter.new(:array, :numerics),
ArrayToNumericArrayConverter.new(:array, :nums),
ArrayToIntegerArrayConverter.new(:array, :integers),
ArrayToIntegerArrayConverter.new(:array, :ints),
ArrayToFloatArrayConverter.new(:array, :floats),
ArrayToBooleanArrayConverter.new(:array, :booleans),
ArrayToBooleanArrayConverter.new(:array, :bools),
ObjectToArrayConverter.new(:object, :array),
ObjectToArrayConverter.new(:hash, :array)
].each do |converter|
conversions.register converter
end
end
end # ArrayConverters
end # Necromancer
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