Add bin and edit workflow

bin/gems/i18n-1.15.2/lib/i18n/backend/interpolation_compiler.rb

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+# frozen_string_literal: true
+
+# The InterpolationCompiler module contains optimizations that can tremendously
+# speed up the interpolation process on the Simple backend.
+#
+# It works by defining a pre-compiled method on stored translation Strings that
+# already bring all the knowledge about contained interpolation variables etc.
+# so that the actual recurring interpolation will be very fast.
+#
+# To enable pre-compiled interpolations you can simply include the
+# InterpolationCompiler module to the Simple backend:
+#
+#   I18n::Backend::Simple.include(I18n::Backend::InterpolationCompiler)
+#
+# Note that InterpolationCompiler does not yield meaningful results and consequently
+# should not be used with Ruby 1.9 (YARV) but improves performance everywhere else
+# (jRuby, Rubinius).
+module I18n
+  module Backend
+    module InterpolationCompiler
+      module Compiler
+        extend self
+
+        TOKENIZER = /(%%?\{[^}]+\})/
+
+        def compile_if_an_interpolation(string)
+          if interpolated_str?(string)
+            string = +string
+            string.instance_eval <<-RUBY_EVAL, __FILE__, __LINE__
+              def i18n_interpolate(v = {})
+                "#{compiled_interpolation_body(string)}"
+              end
+            RUBY_EVAL
+          end
+
+          string
+        end
+
+        def interpolated_str?(str)
+          str.kind_of?(::String) && str =~ TOKENIZER
+        end
+
+        protected
+        # tokenize("foo %{bar} baz %%{buz}") # => ["foo ", "%{bar}", " baz ", "%%{buz}"]
+        def tokenize(str)
+          str.split(TOKENIZER)
+        end
+
+        def compiled_interpolation_body(str)
+          tokenize(str).map do |token|
+            token.match(TOKENIZER) ? handle_interpolation_token(token) : escape_plain_str(token)
+          end.join
+        end
+
+        def handle_interpolation_token(token)
+          token.start_with?('%%') ? token[1..] : compile_interpolation_token(token[2..-2])
+        end
+
+        def compile_interpolation_token(key)
+          "\#{#{interpolate_or_raise_missing(key)}}"
+        end
+
+        def interpolate_or_raise_missing(key)
+          escaped_key = escape_key_sym(key)
+          RESERVED_KEYS.include?(key) ? reserved_key(escaped_key) : interpolate_key(escaped_key)
+        end
+
+        def interpolate_key(key)
+          [direct_key(key), nil_key(key), missing_key(key)].join('||')
+        end
+
+        def direct_key(key)
+          "((t = v[#{key}]) && t.respond_to?(:call) ? t.call : t)"
+        end
+
+        def nil_key(key)
+          "(v.has_key?(#{key}) && '')"
+        end
+
+        def missing_key(key)
+          "I18n.config.missing_interpolation_argument_handler.call(#{key}, v, self)"
+        end
+
+        def reserved_key(key)
+          "raise(ReservedInterpolationKey.new(#{key}, self))"
+        end
+
+        def escape_plain_str(str)
+          str.gsub(/"|\\|#/) {|x| "\\#{x}"}
+        end
+
+        def escape_key_sym(key)
+          # rely on Ruby to do all the hard work :)
+          key.to_sym.inspect
+        end
+      end
+
+      def interpolate(locale, string, values)
+        if string.respond_to?(:i18n_interpolate)
+          string.i18n_interpolate(values)
+        elsif values
+          super
+        else
+          string
+        end
+      end
+
+      def store_translations(locale, data, options = EMPTY_HASH)
+        compile_all_strings_in(data)
+        super
+      end
+
+      protected
+      def compile_all_strings_in(data)
+        data.each_value do |value|
+          Compiler.compile_if_an_interpolation(value)
+          compile_all_strings_in(value) if value.kind_of?(Hash)
+        end
+      end
+    end
+  end
+end