re.c (match_regexp): set regexp for MatchData from string.
re.c (rb_backref_set_string): create MatchData from string and set backref.
string.c (rb_pat_search, rb_str_sub, rb_str_sub_bang, str_gsub), (scan_once, rb_str_scan, rb_str_partition): use rb_str_index instead of rb_reg_search() when pattern is a String. based on the patch by Sam Rawlins sam.rawlins@gmail.com [Fixes GH-579]
string.c: search by rb_str_index
set backref.
(scan_once, rb_str_scan, rb_str_partition): use rb_str_index
instead of rb_reg_search() when pattern is a String. based on
the patch by Sam Rawlins sam.rawlins@gmail.com [Fixes GH-579]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45451 b2dd03c8-39d4-4d8f-98ff-823fe69b080e