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MSPToExpression

MSPToExpression[var]
interprets the variable var MSPToExpression[var, fmt]
uses the format fmt to interpret var MSPToExpression[ var, fmt, head]
returns the result wrapped in head
  • MSPToExpression is the webMathematica version of ToExpression; it provides the same functionality for turning strings into Mathematica input, but it also carries out a security check.
  • You should always use MSPToExpression rather than ToExpression in your code because it provides additional security.
  • The following exceptions can be thrown by MSPToExpression.
MSPException["ParseError"]if the value cannot be interpreted by Mathematica
MSPException["SecurityError"]if the value does not pass the security test
MSPException["ValueError"]if the value is not a string, this indicates a programmatic error by the page author
MSPException["NoValueError"]if the variable does not have a value, this indicates a programmatic error by the page author
MSPException["VariableError"]if the variable is not a Mathematica symbol, this indicates a programmatic error by the page author
EXAMPLESCLOSE ALL
Basic Examples   (1)
You can simulate how the functions work by loading the package and setting the security content.
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Here the variable $$var is assigned to the value "5+7"; note that the value is a string.
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When MSPToExpression evaluates, the parsed value of $$var is returned.
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If a variable has no value, an MSPException is thrown.
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Like ToExpression, MSPToExpression can take a format type for interpretation.
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If the input value cannot be interpreted, an MSPException is thrown.
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If the input value does not pass the security test, an MSPException is thrown.
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Input can also be given in MathML.
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MSPToExpression can be used on strings that are computed from input.
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