Perl

Set a MIME Body, Preserving Content Headers

Demonstrates the Chilkat Mime.SetBody method, which sets the current part's body while preserving the existing content headers (Content-Type, charset, Content-Transfer-Encoding). The only argument is the body text; it is a void method.

Background: Unlike the SetBodyFrom... methods, which set both the content and the headers that describe it, SetBody replaces only the body text and leaves the existing Content-Type and encoding in place. That is what you want when the media type is already correct and you simply need to swap in new content — updating a templated part, for instance — without re-declaring its type.

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Perl

use chilkat();

$success = 0;

#  Demonstrates the Mime.SetBody method, which sets the current part's body while preserving the
#  existing content headers (Content-Type, charset, Content-Transfer-Encoding).  The only argument
#  is the body text.  It is a void method.

$mime = chilkat::CkMime->new();

#  Establish the content headers first.
$success = $mime->SetBodyFromPlainText("initial");
if ($success == 0) {
    print $mime->lastErrorText() . "\r\n";
    exit;
}

#  Replace just the body text, keeping the existing Content-Type and encoding.
$mime->SetBody("This is the replacement body text.");

$mimeText = $mime->getMime();
if ($mime->get_LastMethodSuccess() == 0) {
    print $mime->lastErrorText() . "\r\n";
    exit;
}

print $mimeText . "\r\n";