A lexical element is a component from which you can construct a script. It is the smallest (or most atomic) fragment that a script can be decomposed into to allow the execution mechanisms in the interpreter to operate. Each lexical element is represented by a token and the script is tokenized through a process of lexical analysis.

The following lexical elements are used to construct a script:

• Whitespace

• Line terminator

• Literal (Constant)

• Identifier

• Keyword

• Reserved word

• Operator

• Punctuator

• Comment