1GENERAL: var - declare local variables

Usage: var <variable> {<variable>}

The "var" statement declares variables as local variables of the current 
macro or user-defined command. In contrast to normal (global) variables, 
local variables are only visible within the macro where they are declared
and within macros that are called through that macro (except when such a 
macro declares a local variable with the same name). The "var" command must
precede any other commands in a macro (except the "parameter" command) and 
cannot be used interactively.

See also: set, variable