could_be_empty_branch 1816 pcre/pcre_compile.cpp       if (!empty_branch && could_be_empty_branch(code, endcode, utf8))
could_be_empty_branch 1976 pcre/pcre_compile.cpp   if (!could_be_empty_branch(bcptr->current, endcode, utf8)) return FALSE;
could_be_empty_branch 4261 pcre/pcre_compile.cpp             if (could_be_empty_branch(scode, ketcode, utf8))