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bde60ad530
- evaluator.evaluate(expr, extra_names) returns (result_str, is_error) - blocks __builtins__ to prevent arbitrary code execution - handles ZeroDivisionError, ValueError, NameError with friendly messages - builtins.SAFE_NAMES covers trig, hyperbolic, log, exp, rounding, constants
27 lines
898 B
Python
27 lines
898 B
Python
import math
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SAFE_NAMES = {
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# trig (radians)
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"sin": math.sin, "cos": math.cos, "tan": math.tan,
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"asin": math.asin, "acos": math.acos, "atan": math.atan,
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"atan2": math.atan2,
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# trig (degrees)
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"sind": lambda x: math.sin(math.radians(x)),
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"cosd": lambda x: math.cos(math.radians(x)),
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"tand": lambda x: math.tan(math.radians(x)),
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# hyperbolic
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"sinh": math.sinh, "cosh": math.cosh, "tanh": math.tanh,
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# logs & exp
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"log": math.log, "log2": math.log2, "log10": math.log10,
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"ln": math.log, "exp": math.exp,
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# powers & roots
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"sqrt": math.sqrt, "pow": math.pow,
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# rounding
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"abs": abs, "round": round, "floor": math.floor, "ceil": math.ceil,
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# misc
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"factorial": math.factorial, "gcd": math.gcd,
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"degrees": math.degrees, "radians": math.radians,
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# constants
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"pi": math.pi, "e": math.e, "tau": math.tau, "inf": math.inf,
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}
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