TYPEPKT: returns a type of an Arexx command packet

rv = TYPEPKT(pkt,[mode])

Returns the type of an ARexx command packet whose address is given as address string as first argument. If the mode argument is omitted, then the return value is a number that indicates the type in packed form, also available separately through specifying various modes.

The mode can be one of the following:

'A' - Returns the number of arguments of the packet

also as byte 0 of the packed result.

'C' - Returns TRUE if the packet was created as

command rather than function. This information is also available as byte 3 of the packed result, which is '01'x for commands.

'F' - Returns TRUE if the packet was created as

function call. This information is also available as byte 3 of the packed result, which is '02'x for function calls.

Byte 2 are modifier flags that are handled automatically by the REPLY function.

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