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.

Chilkat Perl Downloads

Download Chilkat for Perl

Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

# 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.

my $mime = Chilkat2::Mime->new;

# Establish the content headers first.
my $success = $mime->SetBodyFromPlainText('initial');
if (!$success) {
    print $mime->LastErrorText, "\n";
    exit;
}

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

my $mimeText = $mime->GetMime();
if (!$mime->LastMethodSuccess) {
    print $mime->LastErrorText, "\n";
    exit;
}

print $mimeText, "\n";