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Scanning for a substring in Icon

If you want to know whether a particular target string t occurs anywhere within a string s, use the function

    find ( t, s )

• If t is not found anywhere within s, the ``find()'' function fails.
• If t is found in one or more locations within s, then ``find ( t, s )'' generates all the locations where t is found (see using generators in Icon).

For example, the expression

    find ( "honest", "politician" )

    every write ( find ( "y", "syzygy" ) ) );