nobu	2017-04-20 20:07:00 +0900 (Thu, 20 Apr 2017)

  New Revision: 58417

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=58417

  Log:
    ruby-lex.rb: merge regexps

  Modified files:
    trunk/lib/irb/ruby-lex.rb
Index: lib/irb/ruby-lex.rb
===================================================================
--- lib/irb/ruby-lex.rb	(revision 58416)
+++ lib/irb/ruby-lex.rb	(revision 58417)
@@ -406,7 +406,7 @@ class RubyLex https://github.com/ruby/ruby/blob/trunk/lib/irb/ruby-lex.rb#L406
       if @lex_state != EXPR_END && @lex_state != EXPR_CLASS &&
           (@lex_state != EXPR_ARG || @space_seen)
         c = peek(0)
-        if /\S/ =~ c && (/["'`]/ =~ c || /\w/ =~ c || c == "-" || c == "~")
+        if /[-~"'`\w]/ =~ c
           tk = identify_here_document
         end
       end

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