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Contents
# frozen_string_literal: true
module EacRubyUtils
# A formatter like [String.sprintf].
class CustomFormat
TYPE_PATTERN = /[a-zA-Z]/.freeze
SEQUENCE_PATTERN = /(?<!%)%(#{TYPE_PATTERN})/.freeze
attr_reader :mapping
def initialize(mapping)
@mapping = mapping.map { |k, v| [k.to_sym, v] }.to_h.freeze
end
def format(string)
::EacRubyUtils::CustomFormat::String.new(self, string)
end
class String
attr_reader :format, :string
def initialize(format, string)
@format = format
@string = string
end
def mapping
@mapping ||= format.mapping.select do |k, _v|
sequences.include?(k)
end
end
def sequences
@sequences ||= string.scan(SEQUENCE_PATTERN).map(&:first).uniq.map(&:to_sym)
end
def source_object_value(object, method)
return object.send(method) if object.respond_to?(method)
return object[method] if object.respond_to?('[]')
raise ::ArgumentError, "Methods \"#{method}\" or \"[]\" not found for #{object}"
end
def with(source_object)
r = string
mapping.each do |key, method|
r = r.gsub(/%#{::Regexp.quote(key)}/, source_object_value(source_object, method).to_s)
end
r.gsub('%%', '%')
end
end
end
end
Version data entries
221 entries across 221 versions & 3 rubygems