readtable (ANSI and GNU Common Lisp Document)

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#### 23.2.1 readtable [System Class]

#### Class Precedence List::

readtable, t

#### Description::

A readtable maps characters into syntax types for the Lisp reader; see Syntax. A readtable also contains associations between macro characters and their reader macro functions, and records information about the case conversion rules to be used by the Lisp reader when parsing symbols.

Each simple character must be representable in the readtable. It is implementation-defined whether non-simple characters can have syntax descriptions in the readtable.

#### See Also::

Readtables, Printing Other Objects