This helps mainly with exponential expansion via xsl:includes or
xsl:imports.

This is an ancient, internal debugging option which only works if
libxml2 is built with mem-debug as well. Remove the option to avoid
crashes.

Fixes #105.

See libxml2#658

Fixes #104.

libxml2 commit a2cc7f5f removed the ability to dynamically set the max
parser depth.

If the file doesn't exist, xmlModuleOpen will fail.

This struct member is unused.

Fix regression from commit 7364666b on platforms where malloc(0) returns
NULL.

Should fix #100.

Fixes #99.

Add pyproject.toml and tests/setup_test.py to Makefile.am.

Avoids a call stack overflow. Found by OSS-Fuzz.

This has changed in libxml2.

From the XSLT 1.0 spec:

> The designation of a namespace as an extension namespace is effective
> within the subtree of the stylesheet rooted at the element bearing the
> extension-element-prefixes or xsl:extension-element-prefixes
> attribute; a subtree rooted at an xsl:stylesheet element does not
> include any stylesheets imported or included by children of that
> xsl:stylesheet element.

So xsltStyleGetExtData should not search imports for extension element
prefixes. This also fixes a mismatch when extension prefixes are looked
up in xsltCheckInstructionElement which could lead to xsl:param elements
in EXSLT functions being rejected.

Fixes #97.

Python 3.12 removes distutils so it's mandatory to use setuptools with
python >= 3.12.

This patch prints a message when trying to run the setup.py script with
a python >= 3.12 without setuptools and try to use the setuptools import
by default.

This patch also creates a new file, pyproject.toml [1], to prepare for
building in modern systems.

[1] https://peps.python.org/pep-0517/

Mike Dalessio authored Sep 11, 2023 and Nick Wellnhofer committed Sep 23, 2023

Related to #73 and f9a0817b

Limit depth of nested imports and includes to avoid call stack overflow.
Fix cycle check to account for all includes.

Found by OSS-Fuzz.

Add the directories containing required DLLs with os.add_dll_directory
to make tests work on MinGW.

Fixes #91.

Consolidate MSVCRT checks.

Fixes #90.

Only use the MSVCRT version of gmtime_s when compiling with MSVC or
MinGW.

Should fix #89.

Make it safe to include this file in C++ sources.

Fixes #87.