merges r23916 from trunk into ruby_1_9_1.

--
* re.c (reg_match_pos): adjust offset based on characters, not
  bytes.  [ruby-dev:38722]

* string.c (rb_str_offset): new function.

* string.c (rb_str_index_m): no call to rb_reg_adjust_startpos().

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_1@24049 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/re.c b/re.c
index 938b96daf..699e90ab4 100644
--- a/re.c
+++ b/re.c
@@ -2546,7 +2546,7 @@ reg_match_pos(VALUE re, VALUE *strp, long pos)
 		return pos;
 	    }
 	}
-	pos = rb_reg_adjust_startpos(re, str, pos, 0);
+	pos = rb_str_offset(str, pos);
     }
     return rb_reg_search(re, str, pos, 0);
 }