Saxonica Developer Community

2024-04-17

• 
  Matt Patterson Saxon

  12:15 · Commented on issue

  This is now fixed on the 12 branch, for both Java and SaxonC. It will be released in the next maintenance release. Bug #6381: set_unprefixed_element_matching_policy(1) doesn't seem to work

  I wrote the following Python code making use of `set_unprefixed_element_matching_policy(1)` on an `PyXPathProcessor`:
  ``` python
  from saxonche import PySaxonProcessor
  with PySaxonProcessor() as saxon_proc:
  print(saxon_proc.ve...
• 
  Matt Patterson SaxonC

  12:13 · Edited issue

  Bug #6392 (In Progress): Memory leak in PySaxonProcessor (Python)

  Consider the following code fragment:
  from saxonche import PySaxonProcessor
  import psutil
  count = 0
  prev = (mi := psutil.Process().memory_info)().rss
  for _ in range(100):
  with PySaxonProcessor(license=False):
  pas...

2024-04-16

• 
  Matt Patterson SaxonC

  15:29 · Commented on issue

  I'm still investigating exactly what's going on, and I'm not yet sure how related all these cases are. There's a degree more complexity with memory usage here because, effectively, GraalVM means there's a JVM running inside the C / Pytho... Bug #6398: Another? memory leak when using XSLT

  Here is test case compiling a single stylesheet once and running it various times in a loop, that approach also shows a memory leak:
  from saxonche import PySaxonProcessor
  import psutil
  xslt = """<xsl:stylesheet xmlns:xsl="http:/...

2024-04-15

• 
  Matt Patterson SaxonC

  12:13 · Edited issue

  I think this is actually not a dupe of #6391. There seem to be two separate issues - retaining memory to do with a processor, and this one, probably to do with holding a copy of the input string when parsing. Bug #6391 (In Progress): Possible memory leak in Python processor?

  On StackOverflow, Rainbolt [reports](https://stackoverflow.com/questions/78322897/why-does-this-code-use-more-and-more-memory-over-time):
  > Python: 3.11 Saxonche: 12.4.2
  >
  > My website keeps consuming more and more memory until the...

2024-03-19

• 
  Matt Patterson SaxonC

  12:20 · Commented on issue

  Martin Honnen wrote in #note-7:
  > Perhaps (kind of a wild guess after a broad search by Google to find stuff related to GraalVM and unsupported encodings) it helps to use `native-image -H:+AddAllCharsets` when building SaxonC to get bet... Bug #6372: Unable to parse Windows-1252 encoded XML files on Linux

  From the forum (https://saxonica.plan.io/boards/4/topics/9617):
  > working with version 12.4.2 on Linux and having this simplified C++ code to explain what I do:
  >
  > ``` cpp
  > SaxonProcessor *processor = new SaxonProcessor(true);...

2024-03-18

• 
  Matt Patterson SaxonC

  16:03 · Commented on issue

  Using just the bits of the Java code that the C++ parse code from the example uses, I can parse an XML file with a charset declaration of `windows-1252` fine. That suggests that there's a problem with the version of the parser we're bund... Bug #6372: Unable to parse Windows-1252 encoded XML files on Linux

  From the forum (https://saxonica.plan.io/boards/4/topics/9617):
  > working with version 12.4.2 on Linux and having this simplified C++ code to explain what I do:
  >
  > ``` cpp
  > SaxonProcessor *processor = new SaxonProcessor(true);...
• 
  Matt Patterson I can reproduce this on macOS with the Python wrapper, so I have a better sense of what kind of problem this is and where it's located.

  10:46 · Edited issue

2024-03-15

• 
  Matt Patterson SaxonC

  14:59 · Replied in forum

  Thank you for reaching out.
  This definitely looks like a bug, but can you give me some more information about the version of Linux you're using? It'd be good to know what distro and version, and the processor architecture (x86_64 or ... Saxon/C Help and Discussions: RE: java.io.UnsupportedEncodingException: Cp1252

  
  Hello All,
  working with version 12.4.2 on Linux and having this simplified C++ code to explain what I do:
  ``` cpp
  SaxonProcessor *processor = new SaxonProcessor(true);
  Xslt30Processor *trans = processor->newXslt30Processor();...
• 
  Matt Patterson SaxonC

  14:58 · Commented on issue

  If you can add more information about your Linux setup, that would be really helpful:
  * Distro
  * Architecture
  * Version
  If you have a sample XML file that triggers the problem, please upload it here if you can, that would be very... Bug #6372: Unable to parse Windows-1252 encoded XML files on Linux

  From the forum (https://saxonica.plan.io/boards/4/topics/9617):
  > working with version 12.4.2 on Linux and having this simplified C++ code to explain what I do:
  >
  > ``` cpp
  > SaxonProcessor *processor = new SaxonProcessor(true);...
• 
  Matt Patterson From the forum (https://saxonica.plan.io/boards/4/topics/9617):
  > working with version 12.4.2 on Linux and having this simplified C++ code to explain what I do:
  >
  > ``` cpp
  > SaxonProcessor *processor = new SaxonProcessor(true);...

  14:57 · Created issue