* `pretty-display` * According to `CobolTerminal.display`, the same method is used regardless of the value. * `perform-osvs` * According to `cobj.c`, the process using `cb_perform_osvs` is commented out. * `sticky-linkage` * may not be implemented. * `stop-literal-statement` * `STOP LITERAL` may not be implemented. * `eject-statement` * Ignored by preprocess step when using `EJECT`. * `entry-statement` * When I use `ENTRY`, the compile error occured.