DoubleSuperscriptsError on entering 3 tick marks '''

[polarwinkel]

Entering 3 or more tick marks in a row ''' will throw a DoubleSuperscriptsError:

Python 3.11.2 (main, Mar 13 2023, 12:18:29) [GCC 12.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import latex2mathml.converter
>>> latex2mathml.converter.convert("f'''(x)")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.11/dist-packages/latex2mathml/converter.py", line 71, in convert
    math = convert_to_element(latex, xmlns, display, parent)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/latex2mathml/converter.py", line 85, in convert_to_element
    _convert_group(iter(walk(latex)), row)
                        ^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/latex2mathml/walker.py", line 34, in walk
    return _walk(tokens)
           ^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/dist-packages/latex2mathml/walker.py", line 135, in _walk
    raise DoubleSuperscriptsError
latex2mathml.exceptions.DoubleSuperscriptsError