Visual FoxPro

Check if a MIME Part is Text

Demonstrates the Chilkat Mime.IsText method, which returns whether the Content-Type begins with text/. It takes no arguments and applies to the current part.

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own file.

Background: IsText is the broad check for any textual part — text/plain, text/html, text/xml, and so on — which is what decides whether it is safe to decode the body to a string. For binary parts, decode to bytes instead. Use the narrower predicates when you need the exact text subtype.

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LOCAL lnSuccess
LOCAL loMime
LOCAL n
LOCAL loPart
LOCAL i

lnSuccess = 0

*  Demonstrates the Mime.IsText method, which returns whether the Content-Type begins with text/.  It takes no arguments and applies to the current
*  part.  This example iterates the parts of a multipart message and reports which ones match.

loMime = CreateObject('Chilkat.Mime')
lnSuccess = loMime.LoadMimeFile("qa_data/multipart_message.eml")
IF (lnSuccess = 0) THEN
    ? loMime.LastErrorText
    RELEASE loMime
    CANCEL
ENDIF

n = loMime.NumParts
loPart = CreateObject('Chilkat.Mime')

FOR i = 0 TO n - 1
    lnSuccess = loMime.PartAt(i,loPart)
    IF (lnSuccess = 0) THEN
        ? loMime.LastErrorText
        RELEASE loMime
        RELEASE loPart
        CANCEL
    ENDIF

    IF (loPart.IsText()) THEN
        ? "Part " + STR(i) + " (" + loPart.ContentType + ") is text."
    ENDIF

NEXT

RELEASE loMime
RELEASE loPart