output_escape_sequence 2342 ext/nkf/nkf-utf8/nkf.c output_escape_sequence(JIS_X_0201_1976_K); output_escape_sequence 2346 ext/nkf/nkf-utf8/nkf.c output_escape_sequence(x0213_f ? JIS_X_0213_2 : JIS_X_0212); output_escape_sequence 2354 ext/nkf/nkf-utf8/nkf.c output_escape_sequence(x0213_f ? JIS_X_0213_1 : JIS_X_0208);