could_be_empty_branch 1565 ext/pcre/pcrelib/pcre_compile.c       if (!empty_branch && could_be_empty_branch(code, endcode, utf8))
could_be_empty_branch 1725 ext/pcre/pcrelib/pcre_compile.c   if (!could_be_empty_branch(bcptr->current, endcode, utf8)) return FALSE;
could_be_empty_branch 4025 ext/pcre/pcrelib/pcre_compile.c             if (could_be_empty_branch(scode, ketcode, utf8))