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The evaluation of expressions in Emacs Lisp is performed by the
Lisp interpreter---a program that receives a Lisp object as input
and computes its value as an expression. How it does this depends
on the data type of the object, according to rules described in this
chapter. The interpreter runs automatically to evaluate portions of
your program, but can also be called explicitly via the Lisp primitive
9.1 Introduction to Evaluation Evaluation in the scheme of things. 9.2 Kinds of Forms How various sorts of objects are evaluated. 9.3 Quoting Avoiding evaluation (to put constants in the program). 9.4 Eval How to invoke the Lisp interpreter explicitly.
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