s/yylex/bgl_dir_lex/g
s/yyerror/bgl_dir_error/g
s/yylval/bgl_dir_lval/g
s/yychar/bgl_dir_char/g
s/yydebug/bgl_dir_debug/g
s/yynerrs/bgl_dir_nerrs/g
s/yyin/bgl_dir_in/g
s/yyout/bgl_dir_out/g
s/yy_create_buffer/bgl_dir_create_buffer/g
s/yy_load_buffer_state/bgl_dir_load_buffer_state/g
s/yyrestart/bgl_dir_restart/g
s/yy_init_buffer/bgl_dir_init_buffer/g
s/yy_switch_to_buffer/bgl_dir_switch_to_buffer/g
s/yy_delete_buffer/bgl_dir_delete_buffer/g
s/yy_flush_buffer/bgl_dir_flush_buffer/g
s/yy_scan_buffer/bgl_dir_scan_buffer/g
s/yy_scan_string/bgl_dir_scan_string/g
s/yy_scan_bytes/bgl_dir_scan_bytes/g
s/yyleng/bgl_dir_leng/g
s/yytext/bgl_dir_text/g
