From 040f27569069926ca57e4d05e77b8a7bded6a7af Mon Sep 17 00:00:00 2001
From: k0kubun <k0kubun@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 20 May 2017 16:50:33 +0000
Subject: [PATCH] erb.rb: Allow trimming carriage return

when trim_mode is "<>", for Windows environments.

[Bug #11464]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58823 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/erb.rb           | 4 ++--
 test/erb/test_erb.rb | 5 +++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/erb.rb b/lib/erb.rb
index b1c993c001..57d068a331 100644
--- a/lib/erb.rb
+++ b/lib/erb.rb
@@ -392,7 +392,7 @@ class ERB
           @scan_reg  = /(.*?)(%>\n|#{(stags + etags).join('|')}|\n|\z)/m
           @scan_line = self.method(:trim_line1)
         elsif @trim_mode == '<>'
-          @scan_reg  = /(.*?)(%>\n|#{(stags + etags).join('|')}|\n|\z)/m
+          @scan_reg  = /(.*?)(%>\r?\n|#{(stags + etags).join('|')}|\n|\z)/m
           @scan_line = self.method(:trim_line2)
         elsif @trim_mode == '-'
           @scan_reg  = /(.*?)(^[ \t]*<%\-|<%\-|-%>\n|-%>|#{(stags + etags).join('|')}|\z)/m
@@ -457,7 +457,7 @@ class ERB
           tokens.each do |token|
             next if token.empty?
             head = token unless head
-            if token == "%>\n"
+            if token == "%>\n" || token == "%>\r\n"
               yield('%>')
               if is_erb_stag?(head)
                 yield(:cr)
diff --git a/test/erb/test_erb.rb b/test/erb/test_erb.rb
index 7a92de3630..f3f3c02820 100644
--- a/test/erb/test_erb.rb
+++ b/test/erb/test_erb.rb
@@ -197,6 +197,11 @@ EOS
     assert_equal(ans, erb.result)
   end
 
+  def test_trim_line2_with_carriage_return
+    erb = @erb.new("<% 3.times do %>\r\nline\r\n<% end %>\r\n", nil, '<>')
+    assert_equal("line\r\n" * 3, erb.result)
+  end
+
   class Foo; end
 
   def test_def_class