From 6eaac7cfac668d6669be694fd7b723c4982ed218 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Mon, 11 Nov 2019 12:57:40 +0900
Subject: [PATCH] Elaborated EOF char message a little

---
 parse.y                  | 2 +-
 test/ruby/test_parse.rb  | 2 +-
 test/ruby/test_syntax.rb | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/parse.y b/parse.y
index 039abc48d7..0eeb9756ff 100644
--- a/parse.y
+++ b/parse.y
@@ -6209,7 +6209,7 @@ lex_goto_eol(struct parser_params *p)
     for (; pcur < pend; pcur++) {
         const char *eof = eof_char(*pcur);
         if (eof) {
-            rb_warning1("encountered %s in comment, just ignored in this version", WARN_S(eof));
+            rb_warning1("encountered EOF char(%s) in comment, just ignored in this version", WARN_S(eof));
             break;
         }
     }
diff --git a/test/ruby/test_parse.rb b/test/ruby/test_parse.rb
index 17a0c8a077..07d4151e5a 100644
--- a/test/ruby/test_parse.rb
+++ b/test/ruby/test_parse.rb
@@ -722,7 +722,7 @@ x = __ENCODING__
 
   def test_embedded_rd_warning
     [["\0", "\\0"], ["\C-d", "^D"], ["\C-z", "^Z"]].each do |eof, mesg|
-      mesg = /encountered #{Regexp.quote(mesg)}/
+      mesg = /encountered EOF char\(#{Regexp.quote(mesg)}\)/
       assert_warning(mesg) {eval("=begin\n#{eof}\n=end")}
       assert_warning(mesg) {eval("=begin#{eof}\n=end")}
       assert_warning(mesg) {eval("=begin\n=end#{eof}\n")}
diff --git a/test/ruby/test_syntax.rb b/test/ruby/test_syntax.rb
index d0748e7028..dc8a618c4e 100644
--- a/test/ruby/test_syntax.rb
+++ b/test/ruby/test_syntax.rb
@@ -944,9 +944,9 @@ eom
   end
 
   def test_warning_for_eof_in_comment
-    assert_warning(/encountered \\0/) {eval("#\0")}
-    assert_warning(/encountered \^D/) {eval("#\C-d")}
-    assert_warning(/encountered \^Z/) {eval("#\C-z")}
+    assert_warning(/encountered EOF char\(\\0\)/) {eval("#\0")}
+    assert_warning(/encountered EOF char\(\^D\)/) {eval("#\C-d")}
+    assert_warning(/encountered EOF char\(\^Z\)/) {eval("#\C-z")}
   end
 
   def test_unexpected_fraction