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  ANSI Common Lisp   2 Syntax   2.1 Character Syntax   2.1.1 Readtables

2.1.1.1 The Current Readtable

Several readtables describing different syntaxes can exist, but at any given time only one, called the current readtable, affects the way in which expressions2 are parsed into objects by the Lisp reader. The current readtable in a given dynamic environment is the value of *readtable* in that environment. To make a different readtable become the current readtable, *readtable* can be assigned or bound.

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