From 716ce65138a8faf2e1226eafe42b2ffb39ebfd67 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 20 Apr 2017 11:07:00 +0000
Subject: [PATCH] ruby-lex.rb: merge regexps

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58417 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/irb/ruby-lex.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/irb/ruby-lex.rb b/lib/irb/ruby-lex.rb
index ca01662eee..3329c02284 100644
--- a/lib/irb/ruby-lex.rb
+++ b/lib/irb/ruby-lex.rb
@@ -406,7 +406,7 @@ class RubyLex
       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