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proc
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thread-self
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root
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opt
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alt
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ruby30
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share
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ruby
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csv
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files >> //proc/thread-self/root/opt/alt/ruby30/share/ruby/csv/fields_converter.rb
# frozen_string_literal: true class CSV # Note: Don't use this class directly. This is an internal class. class FieldsConverter include Enumerable # # A CSV::FieldsConverter is a data structure for storing the # fields converter properties to be passed as a parameter # when parsing a new file (e.g. CSV::Parser.new(@io, parser_options)) # def initialize(options={}) @converters = [] @nil_value = options[:nil_value] @empty_value = options[:empty_value] @empty_value_is_empty_string = (@empty_value == "") @accept_nil = options[:accept_nil] @builtin_converters = options[:builtin_converters] @need_static_convert = need_static_convert? end def add_converter(name=nil, &converter) if name.nil? # custom converter @converters << converter else # named converter combo = @builtin_converters[name] case combo when Array # combo converter combo.each do |sub_name| add_converter(sub_name) end else # individual named converter @converters << combo end end end def each(&block) @converters.each(&block) end def empty? @converters.empty? end def convert(fields, headers, lineno) return fields unless need_convert? fields.collect.with_index do |field, index| if field.nil? field = @nil_value elsif field.is_a?(String) and field.empty? field = @empty_value unless @empty_value_is_empty_string end @converters.each do |converter| break if field.nil? and @accept_nil if converter.arity == 1 # straight field converter field = converter[field] else # FieldInfo converter if headers header = headers[index] else header = nil end field = converter[field, FieldInfo.new(index, lineno, header)] end break unless field.is_a?(String) # short-circuit pipeline for speed end field # final state of each field, converted or original end end private def need_static_convert? not (@nil_value.nil? and @empty_value_is_empty_string) end def need_convert? @need_static_convert or (not @converters.empty?) end end end
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