rb_reg_search0 1307 internal.h long rb_reg_search0(VALUE, VALUE, long, int, int); rb_reg_search0 1592 re.c return rb_reg_search0(re, str, pos, reverse, 1); rb_reg_search0 4510 string.c return rb_reg_search0(pat, str, pos, 0, set_backref_str);