A '''macro''' is any programming or user interface in which an action can be associated with a sequence set of actions that are to be performed in its place. The term can be applied to two distinct categories of things: '''user-interface macros''' allow the user to bind a short sequence of inputs to a longer action, like the `@` command in [vi]. * ''link examples of such in Tk code?'' '''syntactic macros''' occur in the source code of a program, and are used to ''transform'' or ''generate'' program code. This is the facility [Lisp] uses to generate new control structures (compare [uplevel] and [upvar] in Tcl). [Template and Macro processing]: An inventory of Tcl (syntactic) macro systems and other text-substitution techniques <>Glossary