NAME

SYNOPSIS

 use Text::Netstring qw(netstring_encode netstring_decode
        netstring_verify netstring_read);

 $ns = netstring_encode($text);
 @ns = netstring_encode(@text);
 $ns = netstring_encode(@text);

 $text = netstring_decode($ns);
 @text = netstring_decode(@ns);
 $text = netstring_decode(@ns);

 $valid = netstring_verify($string);
 @valid = netstring_verify(@string);
 $valid = netstring_verify(@string);

 $ns = netstring_read($socket);

DESCRIPTION

netstring_encode()

Encode the argument string, list of strings, or referenced list of strings as a netstring.

Supplying a scalar argument in a scalar context, or a list or list reference argument in list context, does what you'd expect; encoding the scalar or each element of the list as appropriate. Supplying a list or list reference argument in a scalar context, however, returns a single scalar which is the concatenation of each element of the list encoded as a netstring.

netstring_decode()

Decode the argument netstring, list of netstrings, or referenced list of netstrings returning the interpretation of each. You should use "netstring_verify()" over any data before you try to decode it. An invalid netstring will be returned as an empty string.

The same scalar/list context handling as for netstring_encode() applies.

netstring_verify()

Check the validity of the supplied netstring, list of netstrings or referenced list of netstrings. Returns a "TRUE" or "FALSE" value, or list of same, as appropriate. Supplying a list argument in a scalar context will return a single boolean value which is "TRUE" if and only if each element of the argument list was successfully verified, otherwise it's "FALSE".

netstring_read()

Read the next netstring from a socket reference supplied as an argument. The function returns a scalar which is the netstring read from the socket. You will need to use netstring_decode() on the return value to obtain the string interpretation. Returns undef in case of an error, or an empty string ("") if a premature EOF was encountered.

This function will regard a netstring claiming to be larger than 200,000,000 characters as an error, yielding undef.

EXAMPLES

 use Text::Netstring qw(netstring_encode netstring_decode);

 @s = ("foo", "bar");
 $t = netstring_encode( scalar netstring_encode(@s) );

"12:3:foo,3:bar,," is the value of $t

 $s = ["5:whizz," , "4:bang,"];
 $t = netstring_decode($s);

"whizzbang" is the value of $t

NOTES

LICENSE

AUTHOR