StringFreeQ
 Usage
Notes
 Further Examples
This checks that a string is free of "a".
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This checks that a string does not contain successive identical characters.
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Here is the same test using regular expressions.
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Using  checks for the presence of substrings regardless of case.
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Here is a list of strings and a list of patterns.
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StringFreeQ gives True only for strings that do not contain the substrings "Al", "gene", or "rot".
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The words Alexander, Dorothy and Eugene are not selected when we pick out the names that are not matched.
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