Mailfromd |
|
General-Purpose Mail Filter |
Sergey Poznyakoff |
Mailfromd Manual (split by node): | ? |
For compatibility with previous versions, mailfromd
also
supports the legacy format of function declarations:
func name (param-types) returns rettype |
Here, param-types is a comma-separated list of parameter types.
The following abbreviations can be used: ‘s’ for string
and ‘n’ for numeric. The same holds true for rettype as
well.
The parameters declared this way are called positional
parameters. The function can access its actual arguments using the notation
$n
, where n is the ordinal number of the
argument(26). Arguments are counted from left to
right. The first argument is $1
.
For example, here's the definition of the ‘sam’ function (see sum–example), using the legacy syntax:
func sum(n, n) returns n do return $1 + $2 done |
Well, to tell you the truth, you can access named arguments using positional notation as well. But such a mixing of styles is not recommended.
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