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Mathematica > Core Language > Expressions > Testing Expressions > SyntaxQ >

Mathematica > Core Language > Procedural Programming > Conditionals > Testing Expressions > SyntaxQ >

BUILT-IN MATHEMATICA SYMBOL

SyntaxQ

returns True if the string corresponds to syntactically correct input for a single Mathematica expression, and returns False otherwise.

If SyntaxQ returns False, you can find the position of a syntax error using SyntaxLength.

Test if a string is valid Mathematica syntax:

When SyntaxQ gives True, the string can be converted to an expression:

Request input from a dialog repeatedly until it is syntactically correct:

Test if a string is valid Mathematica syntax:

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When SyntaxQ gives True, the string can be converted to an expression:

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Request input from a dialog repeatedly until it is syntactically correct:

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