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## 2.1.4.1 Constituent Characters

Constituent characters are used in tokens. A token is a representation of a number or a symbol. Examples of constituent characters are letters and digits.

Letters in symbol names are sometimes converted to letters in the opposite case when the name is read; see Section 23.1.2 (Effect of Readtable Case on the Lisp Reader). Case conversion can be suppressed by the use of single escape or multiple escape characters.

## 2.1.4.2 Constituent Traits

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