Remove some legacy Ruby 1.8 compatibility code

History.md

@@ -3,6 +3,7 @@
 ## 3.0.0 / not yet released / branch "master"
 
 * ...
+* Remove some legacy Ruby 1.8 compatibility code, see #276 [Florian Weingarten, fw42]
 * Add default filter to standard filters, see #267 [Derrick Reimer, djreimer]
 * Add optional strict parsing and warn parsing, see #235 [Tristan Hume, trishume]
 * Add I18n syntax error translation, see #241 [Simon Hørup Eskildsen, Sirupsen]

lib/liquid/drop.rb

@@ -59,13 +59,12 @@ module Liquid
     # Check for method existence without invoking respond_to?, which creates symbols
     def self.invokable?(method_name)
       unless @invokable_methods
-        # Ruby 1.8 compatibility: call to_s on method names (which are strings in 1.8, but already symbols in 1.9)
-        blacklist = (Liquid::Drop.public_instance_methods + [:each]).map(&:to_s)
+        blacklist = Liquid::Drop.public_instance_methods + [:each]
         if include?(Enumerable)
-          blacklist += Enumerable.public_instance_methods.map(&:to_s)
-          blacklist -= [:sort, :count, :first, :min, :max, :include?].map(&:to_s)
+          blacklist += Enumerable.public_instance_methods
+          blacklist -= [:sort, :count, :first, :min, :max, :include?]
         end
-        whitelist = [:to_liquid] + (public_instance_methods.map(&:to_s) - blacklist.map(&:to_s))
+        whitelist = [:to_liquid] + (public_instance_methods - blacklist)
         @invokable_methods = Set.new(whitelist.map(&:to_s))
       end
       @invokable_methods.include?(method_name.to_s)

lib/liquid/standardfilters.rb

@@ -43,8 +43,7 @@ module Liquid
       if input.nil? then return end
       l = length.to_i - truncate_string.length
       l = 0 if l < 0
-      truncated = RUBY_VERSION[0,3] == "1.8" ? input.scan(/./mu)[0...l].to_s : input[0...l]
-      input.length > length.to_i ? truncated + truncate_string : input
+      input.length > length.to_i ? input[0...l] + truncate_string : input
     end
 
     def truncatewords(input, words = 15, truncate_string = "...")