STRING_OPERATE -- perform string operation

OPERATION = $\langle{\tt string:1}\rangle$	'SUM'	operation to perform: CONCATENATE
RESULT = $\langle{\tt string:0}\rangle$	''	variable name for the result of operation
STRING_ARGUMENTS = $\langle{\tt string:0}\rangle$	''	arguments for string operation

Description:

This command performs a specified string operation. There can be up to MSPRM (130) operands for the CONCATENATE operation. The RESULT value has to be a name of the string variable.