[texhax] plain TeX: separate itmes by comme in \write environment

[Rodolfo Medina]

David Carlisle <d.p.carlisle at gmail.com> writes:

>> I applied David's suggestion with \mysep, and it seems to work, only
>> it produces a space before the comma rather than after it as it should be...
>
>
> It would produce a space after the comma if you used `\gdef\mysep{, }`
> and as I mentioned you may need to input ignoring end of line eg
> {\endlinechar=-1\input{zzzz}}


All right, thanks...  But how to eliminate the space before the comma...?