Classic ASP

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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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

'  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.

set msgSet = Server.CreateObject("Chilkat.MessageSet")

'  Load a compact message set.  "1:5,8:10" expands to 1,2,3,4,5,8,9,10.
success = msgSet.FromCompactString("1:5,8:10")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( msgSet.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Count: " & msgSet.Count) & "</pre>"

'  Show the loaded identifiers in comma-separated form.
csv = msgSet.ToCommaSeparatedStr()
Response.Write "<pre>" & Server.HTMLEncode( csv) & "</pre>"

%>
</body>
</html>