Hello flexvault,

Thank you for your time and effort reading and replying to my question/commends. You are absolutely right about it, as I said this is a brief idea that needs experimentation to become generic and more solid.

My assumption was build upon the user reads the length of the string (e.g. 40 characters) creates a string for transmission containing this number.

For example $msg = $length . " " . $txt;. So when the receiver will get the message he knows that he needs to subtract the $length from the length($msg); in order to get the pure message which would be something like 40 character + 3 (length description with the space) = 43 characters. So if the user skips the first 3 characters of the message and reads the rest 40 can know that he got the whole message. Even in case the message was segmented.

Well this is only a brief idea that I was planning to implement.

Sample of code of my idea by using substr including the output:

#!/usr/bin/perl
use strict;
use warnings;

my $msg = "This is just a sample of message.";

my $length = length($msg);

my $number = length($length);

print "\$number: ".$number."\n";

my $transmit = $length . " " . $msg;

print "\$transmit: ".$transmit."\n";

my $receive = substr $transmit, 3;

print "\$receive: ".$receive."\n";

__END__

$number: 2
$transmit: 33 This is just a sample of message.
$receive: This is just a sample of message.
[download]

The solution as it is right now, can not be generic, because the receiver needs to know how many digits need to subtract from the $msg. In case that someone wants to make a generic solution, I would recommend the user to read the string and get the actual length before subtracting. As I said, it needs some small experimentation to become generic and more solid solution, but I think it is possible as an idea to be implemented.

Again thank you for your time and effort reading and replying to my query.