MSPException—Wolfram Language Documentation

Details Details

A number of MSP commands throw an MSPException when some error situation occurs. These are caught by the page processing code, but it would be permissible for a page author to catch them and process them in some intermediate step.
The following exceptions can be thrown by MSPBlock.

	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["VariableError"]	if the variable is not a Mathematica symbol, this indicates a programmatic error by the page author
	MSPException["NoValueError"]	if a variable has no value
	MSPException["VersionError"]	if a version mismatch problem is found

Examples Examples open all close all

Basic Examples (1)Basic Examples (1)

You can simulate how the function works by installing and loading the package.

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If a variable cannot be interpreted, a ParseError exception is thrown. Since the values may be entered from the client, this does not indicate an author error.

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If the result of interpretation does not pass the security check, a SecurityError exception is thrown. Since the values may be entered from the client, this does not indicate an author error.

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