On 26Oct2020 09:45, Chris Angelico <ros...@gmail.com> wrote:
>On Mon, Oct 26, 2020 at 8:44 AM Cameron Simpson <c...@cskk.id.au> wrote:
>> On 24Oct2020 13:37, Dan Sommers <2qdxy4rzwzuui...@potatochowder.com> wrote:
>> >Spaces in filenames are just as bad, and much more common:
>>
>> But much easier to handle in simple text listings, which are newline
>> delimited.
>> You're really running into a horrible behaviour from xargs, which is one
>> reason why GNU parallel exists.
>
>I don't consider the behaviour horrible, and xargs isn't the only
>thing to do this - other tools can be put into zero-termination mode
>too.
I'm not talking about -print0 and -0, which I merely dislike as a hack
to accomodate badly named filenames, but xargs' non-0 behaviour, which
splits on whitespace. Instead of newlines. That pissed me off enough to
write my own.
[...]
>If you actually DO need to read null-terminated records from a file
>that's too big for memory, it's probably worth just rolling your own
>buffering, reading a chunk at a time and splitting off the interesting
>parts. It's not hugely difficult, and it's a good exercise to do now
>and then.
Aye. That's what my cs.buffer.CornuCopyBuffer class does for me:
https://pypi.org/project/cs.buffer/
aimed particularly at parsing binary data easily (it takes any iterable
of bytes, and has a few factories to start from a file etc).
Parsing a NUL terminated string from binary data isn't too bad given
such a thing.
Cheers,
Cameron Simpson <c...@cskk.id.au>
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