nkf_buf_empty_p 887 ext/nkf/nkf-utf8/nkf.c assert(!nkf_buf_empty_p(buf)); nkf_buf_empty_p 3332 ext/nkf/nkf-utf8/nkf.c if (!nkf_buf_empty_p(nkf_state->std_gc_buf)){ nkf_buf_empty_p 3694 ext/nkf/nkf-utf8/nkf.c if (!nkf_buf_empty_p(nkf_state->broken_buf)) {