User Expression module¶
Contains the definition of user defined expressions. It has the class UserExpression that evaluates an expression defined in an string.
Example
Creating an expression:
true_value = UserExpression("1==1").evaluate()
false_expression = UserExpression("1==2").evaluate()
true_value = 3 == UserExpression("1+2").evaluate()
Warning
Currently the use of an object with this class is unsafe. Is very dangerous if you accept strings to evaluate from untrusted input because it can execute malicious code.
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class
gsf.core.expressions.user_expression.UserExpression(expression_value: Any)¶ Bases:
gsf.core.expressions.expression.Expression-
evaluate()¶ Evaluates the expression
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value: Any¶ Value of the expression.
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