Underscore in binary literals

Dear devs, GHC's BinaryLiterals extension is useful. (For example, x = 0b110111000101) Is it difficult to include underscore(_) in the format like Verilog-HDL[1] ? (For example, x = 0b1101_1100_0101) [1]: https://inst.eecs.berkeley.edu/~cs150/fa06/Labs/verilog-ieee.pdf#page=20 Regards, Takenobu