Moving to 64 bits everywhere would be a significant challenge, not least
because of the difficulty of testing all paths with the large data volumes
needed to find the bugs.
Let's call this Saxon-64 :)
I believe we will live to see Saxon-64. And this would make it even
more *the* (only) XSLT processor people like me will be using.
Other features that would be great:
- producing streamed output
- accept and process the "initial match selection" as a stream
- asynchronous processing -- something like "promise" in Javascript
Cheers,
Dimitre
On Thu, Jun 14, 2018 at 12:58 AM, Michael Kay mike(_at_)saxonica(_dot_)com
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:
Simply moving to a 64-bit long would allow an InputStream that would take a
million years or so to process, which is infinite enough for most people.
This particular limit is easy to fix. There are others that are harder:
32-bit limits on the size of sequences and strings are scattered throughout
Saxon not to mention the Java VM itself. One example: a streamable stylesheet
can call position() to get the position of the current node, and position()
is a 32-bit int. Similarly xsl:number uses 32-bit integers. Moving to 64 bits
everywhere would be a significant challenge, not least because of the
difficulty of testing all paths with the large data volumes needed to find
the bugs.
Michael Kay
Saxonica
On 14 Jun 2018, at 06:19, Mukul Gandhi
gandhi(_dot_)mukul(_at_)gmail(_dot_)com
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:
Hi Mike,
On Wed, Jun 13, 2018 at 1:00 PM, Michael Kay mike(_at_)saxonica(_dot_)com
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:
The Saxon implementation does have some limits that mean the input stream
can't be infinite: most obviously, the nodes are numbered using a 32-bit
integer.
Can't Saxon use java.math.BigInteger instead of the 32-bit integer data type?
(if 32-bit integer constraint is not allowing Saxon to process theoretically
infinite size input stream).
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Regards,
Mukul Gandhi
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Cheers,
Dimitre Novatchev
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