constants.rb in regexp-examples-1.3.2

- old
+ new
@@ -19,43 +19,45 @@
 
     # Maximum number of results to be generated, for Regexp#examples
     # This is to prevent the system "freezing" when given instructions like:
     # /[ab]{30}/.examples
     # (Which would attempt to generate 2**30 == 1073741824 examples!!!)
-    MAX_RESULTS_LIMIT_DEFAULT = 10000
+    MAX_RESULTS_LIMIT_DEFAULT = 10_000
     class << self
       attr_reader :max_repeater_variance, :max_group_results, :max_results_limit
-      def configure!(max_repeater_variance: nil, max_group_results: nil, max_results_limit: nil)
+      def configure!(max_repeater_variance: nil,
+                     max_group_results: nil,
+                     max_results_limit: nil)
         @max_repeater_variance = (max_repeater_variance || MAX_REPEATER_VARIANCE_DEFAULT)
         @max_group_results = (max_group_results || MAX_GROUP_RESULTS_DEFAULT)
         @max_results_limit = (max_results_limit || MAX_RESULTS_LIMIT_DEFAULT)
       end
     end
   end
 
   def self.max_repeater_variance
     ResultCountLimiters.max_repeater_variance
   end
+
   def self.max_group_results
     ResultCountLimiters.max_group_results
   end
+
   def self.max_results_limit
     ResultCountLimiters.max_results_limit
   end
 
   # Definitions of various special characters, used in regular expressions.
   # For example, `/\h/.examples` will return the value of `Hex` in this module
   module CharSets
     Lower        = Array('a'..'z')
     Upper        = Array('A'..'Z')
     Digit        = Array('0'..'9')
-    # Note: Punct should also include the following chars: $ + < = > ^ ` | ~
-    # I.e. Punct = %w(! " # $ % & ' ( ) * + , - . / : ; < = > ? @ [ \\ ] ^ _ ` { | } ~)
-    # However, due to a ruby bug (!!) these do not work properly at the moment!
-    Punct        = %w(! " # % & ' ( ) * , - . / : ; ? @ [ \\ ] _ { })
+    Punct        = %w[! " # % & ' ( ) * , - . / : ; ? @ [ \\ ] _ { }] \
+                     | (RUBY_VERSION >= '2.4.0' ? %w[$ + < = > ^ ` | ~] : [])
     Hex          = Array('a'..'f') | Array('A'..'F') | Digit
     Word         = Lower | Upper | Digit | ['_']
-    Whitespace   = [' ', "\t", "\n", "\r", "\v", "\f"]
+    Whitespace   = [' ', "\t", "\n", "\r", "\v", "\f"].freeze
     Control      = (0..31).map(&:chr) | ["\x7f"]
     # Ensure that the "common" characters appear first in the array
     # Also, ensure "\n" comes first, to make it obvious when included
     Any          = ["\n"] | Lower | Upper | Digit | Punct | (0..127).map(&:chr)
     AnyNoNewLine = Any - ["\n"]