usepaste::paste;paste!{fn[<x1e+100z>](){}}paste!{// `xyz` is not correct. `xbyz` is certainly not correct. Maybe `x121z`// would be justifiable but for now don't accept this.fn[<xb'y'z>](){}}paste!{fn[<xb"y"z>](){}}paste!{fn[<xbr"y"z>](){}}fnmain(){}