Java

Load a MessageSet from a Compact String

Demonstrates the Chilkat MessageSet.FromCompactString method, which clears the set and loads message identifiers from compact IMAP message-set syntax. The only argument is the compact string: a colon specifies an inclusive ascending range, and commas separate values or ranges. This example loads 1:5,8:10 and prints the result as a comma-separated list.

Background: Compact message-set syntax is how IMAP itself expresses groups of messages — 1:5,8:10 is far more concise than listing every id. FromCompactString is the inverse of ToCompactString: it parses that text into a set you can pass to Imap methods. Duplicates are removed, identifiers are sorted ascending, and the existing HasUids setting is preserved. Note the string carries only the numbers — it does not record whether they are UIDs or sequence numbers.

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import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.MessageSet;

public class ChilkatExample {

    public static void main(String[] args) {
        // Demonstrates the MessageSet.FromCompactString method, which loads a set of message
        // identifiers from compact IMAP message-set syntax.  The only argument is the compact string.
        // A colon specifies an inclusive range, and commas separate values or ranges.

        MessageSet msgSet = new MessageSet();

        // Load a compact message set.  "1:5,8:10" expands to 1,2,3,4,5,8,9,10.
        try {
            msgSet.fromCompactString("1:5,8:10");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Count: " + msgSet.getCount());

        // Show the loaded identifiers in comma-separated form.
        String csv = msgSet.toCommaSeparatedStr();
        System.out.println(csv);
    }
}