Make/Flavor-Function
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8.11 The flavor
Function
The flavor
function, like the origin
function, does not
operate on the values of variables but rather it tells you something
about a variable. Specifically, it tells you the flavor of a
variable (see The Two Flavors of Variables).
The syntax of the flavor
function is:
$(flavor variable)
Note that variable
is the name of a variable to inquire about,
not a reference to that variable. Therefore you would not normally
use a ‘$
’ or parentheses when writing it. (You can, however, use a
variable reference in the name if you want the name not to be a constant.)
The result of this function is a string that identifies the flavor of the
variable variable
:
- ‘
undefined
’ - if
variable
was never defined. - ‘
recursive
’ - if
variable
is a recursively expanded variable. - ‘
simple
’ - if
variable
is a simply expanded variable.