* string.c (rb_str_each_line): fix newline size.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15539 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Mon Feb 18 15:16:30 2008  Tanaka Akira  <akr@fsij.org>
+
+	* string.c (rb_str_each_line): fix newline size.
+
 Mon Feb 18 13:06:37 2008  Tanaka Akira  <akr@fsij.org>
 
 	* lib/irb/locale.rb (IRB::Locale#lc2kconv): check ja_JP.EUC-JP as well.

string.c

@@ -4896,7 +4896,7 @@ rb_str_each_line(int argc, VALUE *argv, VALUE str)
 		p++;
 		continue;
 	    }
-	    p = p0 + rb_enc_mbclen(s, p0, enc);
+	    p = p0 + rb_enc_mbclen(p0, pend, enc);
 	    line = rb_str_new5(str, s, p - s);
 	    OBJ_INFECT(line, str);
 	    rb_enc_copy(line, str);

test/ruby/test_m17n.rb

@@ -980,6 +980,12 @@ class TestM17N < Test::Unit::TestCase
   def test_each_line
     s = e("\xa3\xb0\xa3\xb1\xa3\xb2\xa3\xb3\xa3\xb4")
     assert_raise(ArgumentError){s.each_line(a("\xa3\xb1")) {|l| }}
+    s = e("\xa4\xa2\nfoo")
+
+    actual = []
+    s.each_line {|line| actual << line }
+    expected = [e("\xa4\xa2\n"), e("foo")]
+    assert_equal(expected, actual)
   end
 
   def test_each_char