[ruby/rdoc] Allow cross references to logical operator methods

https://github.com/ruby/rdoc/commit/17c0da304d

lib/rdoc/cross_reference.rb

@@ -19,7 +19,7 @@ class RDoc::CrossReference
   #
   # See CLASS_REGEXP_STR
 
-  METHOD_REGEXP_STR = '([A-Za-z]\w*[!?=]?|%|=(?:==?|~)|![=~]|\[\]=?|<(?:<|=>?)?|>[>=]?|[-+!]@?|\*\*?|[/%`])(?:\([\w.+*/=<>-]*\))?'
+  METHOD_REGEXP_STR = '([A-Za-z]\w*[!?=]?|%|=(?:==?|~)|![=~]|\[\]=?|<(?:<|=>?)?|>[>=]?|[-+!]@?|\*\*?|[/%`|&^])(?:\([\w.+*/=<>-]*\))?'
 
   ##
   # Regular expressions matching text that should potentially have

test/rdoc/test_rdoc_cross_reference.rb

@@ -2,7 +2,7 @@
 require File.expand_path '../xref_test_case', __FILE__
 
 class TestRDocCrossReference < XrefTestCase
-  OPERATOR_METHODS = %w'== === != =~ !~ < > <= >= <=> [] []= << >> -@ +@ ! - + * / % ** !@ `'
+  OPERATOR_METHODS = %w'== === != =~ !~ < > <= >= <=> [] []= << >> -@ +@ ! - + * / % ** !@ ` | & ^'
 
   def setup
     super