This function allows you to declare a character entity with a specific replacement value.

name is the name of an existing file entity. A leading & is optional.

text is the replacement value for name, and is usually the name of a special character inside brackets. The text argument in aliases must be enclosed by quotes if brackets are used.

doc is the document identifier. By default, the current document is assumed.

inEntity signifies whether the declaration is within an entity. A non-zero value means the declaration is within an entity.