v0.5.3

- Мелкие исправления увеличивающие работу конвертера

md2gost/latex_math.py

@@ -8,15 +8,24 @@ from lxml.etree import _Element
 
 from . import package_dir
 
+_MML2OMML_TRANSFORM: etree.XSLT | None = None
+
+
+def _mml2omml_transform() -> etree.XSLT:
+    """The stylesheet is stateless and reusable, so parse and compile it once."""
+    global _MML2OMML_TRANSFORM
+    if _MML2OMML_TRANSFORM is None:
+        _MML2OMML_TRANSFORM = etree.XSLT(etree.parse(
+            os.path.join(package_dir(), "mml2omml")
+        ))
+    return _MML2OMML_TRANSFORM
+
 
 def latex_to_omml(latex_equation: str) -> _Element:
     try:
         mathml = latex2mathml.converter.convert(latex_equation)
         tree = etree.fromstring(mathml)
-        xslt = etree.parse(
-            os.path.join(package_dir(), "mml2omml")
-        )
-        transform = etree.XSLT(xslt)
+        transform = _mml2omml_transform()
         new_dom = transform(tree)
         word_math = new_dom.getroot()
     except Exception: