Analysis of information sources in references of the Wikipedia article "Scope (computer science)" in English language version.
Emacs 24 has optional lexical binding, which can be enabled on a per-buffer basis.
Dynamic bindings are established and accessed by a separate mechanism (i.e.,defdynamic,dynamic-let, anddynamic).
MacLisp improved on the Lisp 1.5 notion of special variables ... The primary influences on Common Lisp were Lisp Machine Lisp, MacLisp, NIL, S-1 Lisp, Spice Lisp, and Scheme.
If the variable to be bound has been declared to be special, the binding is compiled as code to imitate the way the interpreter binds variables
*FUNCTION. Retrieved October 20, 2018. *FUNCTION is intended to help solve the "funarg problem," however it only works in some easy cases.Variables defined inside a function cannot be accessed from anywhere outside the function, because the variable is defined only in the scope of the function. However, a function can access all variables and functions defined inside the scope in which it is defined.