Can I obtain byte offsets from the streaming XML reader?

[Adam Wojnakowski]

I am looking for a way to obtain offsets of start and end element tags, ones that I can later use to efficiently read a portion of XML data from the same file. I know that you can obtain character offsets but can't seem to find an easy way to get the byte offsets of InputStream.

The getByteStartingOffset() or getByteEndingOffset() of LocationInfo return -1 even if I construct the reader from an InputStream.

Is there any support for tracking byte offsets of the current tag in the streaming XML reader?

Thanks in advance,

Adam

[Tatu Saloranta]

No, unfortunately this is not possible with Woodstox: all input will
be read using a Reader, so conversion from bytes to chars occurs
before any decoding/parsing. So only character offsets are available.

Aalto parser (https://github.com/FasterXML/aalto-xml/) would provide
byte offsets, if it worked for your use case -- the main limitation
being that it does not support DTDs.

-+ Tatu +-

>
> Thanks in advance,
> Adam
>
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[Adam Wojnakowski]

We may be fine without DTD. I will have a look at Aalto. Thanks a lot!

[Tatu Saloranta]

On Tue, Jul 5, 2022 at 2:25 PM Adam Wojnakowski <ada...@gmail.com> wrote:
>
> We may be fine without DTD. I will have a look at Aalto. Thanks a lot!

No problem!

-+ Tatu +-

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