* parse.y (string_content): get rid of segfault at empty evstr.

fixed: [ruby-dev:25113]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7500 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Wed Dec  8 11:46:26 2004  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* parse.y (string_content): get rid of segfault at empty evstr.
+	  fixed: [ruby-dev:25113]
+
 Wed Dec  8 03:26:51 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
 
 	* ext/openssl/ossl_bio.c (ossl_obj2bio): should not use fptr->f.

parse.y

@@ -3599,7 +3599,7 @@ string_content	: tSTRING_CONTENT
 			COND_LEXPOP();
 			CMDARG_LEXPOP();
 		    /*%%%*/
-		        $3->flags &= ~NODE_NEWLINE;
+		        if ($3) $3->flags &= ~NODE_NEWLINE;
 			$$ = new_evstr($3);
 		    /*%
 			$$ = dispatch1(string_embexpr, $3);

test/ruby/test_system.rb

@@ -60,4 +60,8 @@ class TestSystem < Test::Unit::TestCase
       end
     end
   end
+
+  def test_empty_evstr # [ruby-dev:25113]
+    assert_equal("", eval('"#{}"', nil, __FILE__, __LINE__))
+  end
 end