[orph4nus]

A multiquine does require you to give input in order to determine what language to output. Although it will output the current file if no input is giving. More info @ https://en.wikipedia.org/wiki/Quine_(computing)#Multiquines

[gliese1337]

The definition of a multiquine specifically disallows passing in source code as input, though. The input to a multiquine is strictly for selecting which sub-quine to run, or which output set to calculate, and is not used in any way to influence the calculation of the selected output.