element.rb in eulim-0.0.12

- old
+ new
@@ -1,54 +1,53 @@
-require 'csv'
-require 'unitwise'
-
-module Eulim
-  module Chemistry
-    # This class has functionality for elements
-    # Ex: symbol, atomic mass, atomic number
-    class Element
-      attr_accessor :atomic_mass, :symbol, :name, :atomic_number
-
-      ATTRS = %w[symbol name atomic_number atomic_mass].freeze
-      # Data taken from 'www.science.co.il/elements/'
-      ELEMENTS = []
-
-      def initialize(arg)
-        @name = arg[1]
-        @symbol = arg[0]
-        @atomic_number = arg[2].to_i
-        @atomic_mass = Unitwise(arg[3].to_f, 'u')
-      end
-
-      # elements of the csv have no spaces
-      CSV.foreach(File.join(File.dirname(__FILE__), 'elements.csv'), headers: true) do |row|
-        ELEMENTS << new(row)
-      end
-
-      private_class_method def self.method_missing(m, *args)
-        attribute = m.to_s.split('get_by_').last
-        valid_method? m, attribute
-        raise 'please give argument' if args.empty?
-        args[0] = attribute == 'name' ? args[0].capitalize : args[0]
-        element_data = get_element_by_attribute attribute, args[0]
-        raise 'Element not found' unless element_data
-        element_data
-      end
-
-      private_class_method def self.get_element_by_attribute(attribute, value)
-        ELEMENTS.each do |element|
-          # elements value of attribute == value give by user
-          return element if
-            element.instance_variable_get(('@' + attribute).intern) == value
-        end
-        raise(NameError, 'element not found')
-      end
-
-      private_class_method def self.valid_method?(m, attribute)
-        super unless m.to_s.start_with?('get_by_')
-        raise(NameError, 'Invalid attribute') unless ATTRS.include? attribute
-      end
-
-      private_class_method :new
-    end
-  end
-end
+require 'csv'
+require 'unitwise'
+
+module Eulim
+  module Chemistry
+    # This class has functionality for elements
+    # Ex: symbol, atomic mass, atomic number
+    class Element
+      attr_accessor :atomic_mass, :symbol, :name, :atomic_number
+
+      ATTRS = %w[symbol name atomic_number atomic_mass].freeze
+      # Data taken from 'www.science.co.il/elements/'
+      ELEMENTS = []
+
+      def initialize(arg)
+        @name = arg[1]
+        @symbol = arg[0]
+        @atomic_number = arg[2].to_i
+        @atomic_mass = Unitwise(arg[3].to_f, 'u')
+      end
+
+      CSV.foreach(File.join(File.dirname(__FILE__), 'elements.csv'), headers: true) do |row|
+        ELEMENTS << new(row)
+      end
+
+      private_class_method def self.method_missing(m, *args)
+        attribute = m.to_s.split('get_by_').last
+        valid_method? m, attribute
+        raise 'please give argument' if args.empty?
+        args[0] = attribute == 'name' ? args[0].capitalize : args[0]
+        element_data = get_element_by_attribute attribute, args[0]
+        raise 'Element not found' unless element_data
+        element_data
+      end
+
+      private_class_method def self.get_element_by_attribute(attribute, value)
+        ELEMENTS.each do |element|
+          # elements value of attribute == value give by user
+          return element if
+            element.instance_variable_get(('@' + attribute).intern) == value
+        end
+        raise(NameError, 'element not found')
+      end
+
+      private_class_method def self.valid_method?(m, attribute)
+        super unless m.to_s.start_with?('get_by_')
+        raise(NameError, 'Invalid attribute') unless ATTRS.include? attribute
+      end
+
+      private_class_method :new
+    end
+  end
+end