def _parse_latex()

in prm800k/grading/grader.py [0:0]

• 12 lines of code
• 1 McCabe index (conditional complexity)

def _parse_latex(expr: str) -> str:
    """Attempts to parse latex to an expression sympy can read."""
    expr = expr.replace("\\tfrac", "\\frac")
    expr = expr.replace("\\dfrac", "\\frac")
    expr = expr.replace("\\frac", " \\frac")  # Play nice with mixed numbers.
    expr = latex2text.LatexNodes2Text().latex_to_text(expr)

    # Replace the specific characters that this parser uses.
    expr = expr.replace("√", "sqrt")
    expr = expr.replace("π", "pi")
    expr = expr.replace("∞", "inf")
    expr = expr.replace("∪", "U")
    expr = expr.replace("·", "*")
    expr = expr.replace("×", "*")

    return expr.strip()