#### 23.2.7 readtable-case [Accessor] ¶

`readtable-case` readtable ⇒ mode

(setf (`readtable-case` readtable) mode)

#### Arguments and Values:: ¶

readtable—a readtable.

mode—a case sensitivity mode.

#### Description:: ¶

Accesses the readtable case of readtable, which affects the way in which the Lisp Reader reads symbols and the way in which the Lisp Printer writes symbols.

#### Examples:: ¶

See Examples of Effect of Readtable Case on the Lisp Reader and Examples of Effect of Readtable Case on the Lisp Printer.

#### Exceptional Situations:: ¶

Should signal an error of type type-error if readtable is not a readtable. Should signal an error of type type-error if mode is not a case sensitivity mode.

#### See Also:: ¶

readtable [System Class] , *print-escape*, Reader Algorithm, Effect of Readtable Case on the Lisp Reader, Effect of Readtable Case on the Lisp Printer

#### Notes:: ¶

copy-readtable copies the readtable case of the readtable.