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Perl

Receive Text up to a Match into a StringBuilder

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveUntilMatchSb, which receives bytes until an exact byte sequence is found and appends the received text to a StringBuilder.

Background. The match string is encoded using StringCharset and compared byte-for-byte. The match may span multiple underlying network reads.

Chilkat Perl Downloads

Chilkat2 Perl
use strict;
use warnings;
use Chilkat2;

my $socket = Chilkat2::Socket->new;

# Connect to the server using TLS.  The 3rd argument enables the TLS handshake after the TCP
# connection succeeds; the 4th is the maximum time to wait, in milliseconds.
my $bTls = 1;
my $maxWaitMs = 5000;
my $success = $socket->Connect('example.com', 5000, $bTls, $maxWaitMs);
if (!$success) {
    print $socket->LastErrorText, "\n";
    exit;
}

# StringCharset controls the character encoding used when sending and receiving text.
$socket->StringCharset('utf-8');
# Send a request using a simple application-defined text protocol in which each message ends with a
# CRLF.
my $command = "STATUS\r\n";
$success = $socket->SendString($command);
if (!$success) {
    print $socket->LastErrorText, "\n";
    exit;
}

# Receive bytes until an exact byte sequence is found, appending the received text to a
# StringBuilder.  The match may span multiple underlying network reads.
my $sb = Chilkat2::StringBuilder->new;
$success = $socket->ReceiveUntilMatchSb('<EOM>', $sb);
if (!$success) {
    print $socket->LastErrorText, "\n";
    exit;
}

my $response = $sb->GetAsString();
if (!$sb->LastMethodSuccess) {
    print $sb->LastErrorText, "\n";
    exit;
}

print $response, "\n";