usa	2019-03-31 23:58:24 +0900 (Sun, 31 Mar 2019)

  New Revision: 67391

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=67391

  Log:
    merge revision(s) 67188: [Backport #15642]
    
    io.c: chomp CR at the end of read buffer
    
    * io.c (rb_io_getline_fast): chomp CR followed by LF but separated
      by the read buffer boundary.  [ruby-core:91707] [Bug #15642]

  Modified directories:
    branches/ruby_2_4/
  Modified files:
    branches/ruby_2_4/io.c
    branches/ruby_2_4/test/ruby/test_io.rb
    branches/ruby_2_4/version.h
Index: ruby_2_4/version.h
===================================================================
--- ruby_2_4/version.h	(revision 67390)
+++ ruby_2_4/version.h	(revision 67391)
@@ -1,10 +1,10 @@ https://github.com/ruby/ruby/blob/trunk/ruby_2_4/version.h#L1
 #define RUBY_VERSION "2.4.6"
-#define RUBY_RELEASE_DATE "2019-03-19"
-#define RUBY_PATCHLEVEL 352
+#define RUBY_RELEASE_DATE "2019-03-31"
+#define RUBY_PATCHLEVEL 353
 
 #define RUBY_RELEASE_YEAR 2019
 #define RUBY_RELEASE_MONTH 3
-#define RUBY_RELEASE_DAY 19
+#define RUBY_RELEASE_DAY 31
 
 #include "ruby/version.h"
 
Index: ruby_2_4/test/ruby/test_io.rb
===================================================================
--- ruby_2_4/test/ruby/test_io.rb	(revision 67390)
+++ ruby_2_4/test/ruby/test_io.rb	(revision 67391)
@@ -228,6 +228,19 @@ class TestIO < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/ruby_2_4/test/ruby/test_io.rb#L228
       assert_nil r.gets
       r.close
     end)
+
+    (0..3).each do |i|
+      pipe(proc do |w|
+        w.write("a" * ((4096 << i) - 4) + "\r\n" "a\r\n")
+        w.close
+      end,
+      proc do |r|
+        r.gets
+        assert_equal "a", r.gets(chomp: true)
+        assert_nil r.gets
+        r.close
+      end)
+    end
   end
 
   def test_gets_chomp_rs_nil
Index: ruby_2_4/io.c
===================================================================
--- ruby_2_4/io.c	(revision 67390)
+++ ruby_2_4/io.c	(revision 67391)
@@ -3017,6 +3017,12 @@ rb_io_getline_fast(rb_io_t *fptr, rb_enc https://github.com/ruby/ruby/blob/trunk/ruby_2_4/io.c#L3017
 		read_buffered_data(RSTRING_PTR(str)+len, pending - chomplen, fptr);
 		fptr->rbuf.off += chomplen;
 		fptr->rbuf.len -= chomplen;
+                if (pending == 1 && chomplen == 1 && len > 0) {
+                    if (RSTRING_PTR(str)[len-1] == '\r') {
+                        rb_str_resize(str, --len);
+                        break;
+                    }
+                }
 	    }
 	    len += pending - chomplen;
 	    if (cr != ENC_CODERANGE_BROKEN)
Index: ruby_2_4
===================================================================
--- ruby_2_4	(revision 67390)
+++ ruby_2_4	(revision 67391)

Property changes on: ruby_2_4
___________________________________________________________________
Modified: svn:mergeinfo
## -0,0 +0,1 ##
   Merged /trunk:r67188

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