Illustrator Scripting :: Read Input Parameters From Script File Name

How do I read input parameters from a script file name? For example, let’s say I want to run a script that requires 3 variables as input, but rather than prompting for the values I wish to read them from the script file name … e.g., the file name might be “Myscript.js (my_variable1, my_variable2, my_variable2)” … where variables are all real numbers. So I assume the script name when run should look something like …  Myscript.js (10, 10, 100), but how do I then read these and assign these values to a var statement within the script?