@oozeBot I suggest first to update to dsf-python 3.4.6 as I fixed CodeParameter.is_expression in that version.
In your exemple cde is an instance of dsf.commands.code.Code.
The Code class has a parameters attributes (eg : cde.parameters) which is a List containing the GCode parameters.
The class dsf.commands.code_parameter.CodeParameter has the following attributes :
letter : which contains the letter of the Gcode (eg : H)
is_expression : which return either if the parameter value is an expression or not
string_value : The value of the gcode as a string
If you want to parse an expression, you have to use the generic function evaluate_expression over the string_value
As an example :
from dsf.connections import InterceptConnection, InterceptionMode
from dsf.commands.code import CodeType
def start_intercept():
filters = ["M1234"]
intercept_connection = InterceptConnection(InterceptionMode.PRE, filters=filters, debug=True)
intercept_connection.connect()
try:
while True:
# Wait for a code to arrive
cde = intercept_connection.receive_code()
# Check for the type of the code
if cde.type == CodeType.MCode and cde.majorNumber == 1234:
# Go through all the Gcode parameters
for parameter in cde.parameters:
if parameter.is_expression:
print(intercept_connection.evaluate_expression(parameter.string_value))
# Resolve it so that DCS knows we took care of it
intercept_connection.resolve_code()
else:
# We did not handle it so we ignore it and it will be continued to be processed
intercept_connection.ignore_code()
except Exception as e:
print("Closing connection: ", e)
traceback.print_exc()
intercept_connection.close()
if __name__ == "__main__":
start_intercept()
