Tim Hammerquist

NAME

ASP::NextLink - Perl implementation of the NextLink ASP component

SYNOPSIS

        require ASP::NextLink;
        $nl = new ASP::NextLink('linkfile.ext');

        $current = $nl->GetListIndex;
        for $idx (1..$nl->GetListCount) {
                my $url =       $nl->GetNthURL($idx);
                my $desc =      $nl->GetNthDescription($idx);
                if ($idx == $current) {
                        print qq(<A href="$url">$desc</A><BR>);
                }
                else {
                        print qq(<B>$desc</B>);
                }
        }

DESCRIPTION

ASP::NextLink is a Perl implementation of MSWC.NextLink, ASP's content-linking component for use with Apache::ASP.

NOTES

ASP::NextLink is NOT functionally equivalent to MSWC.NextLink. Whereas each method of MSWC.NextLink takes a file argument, ASP::NextLink takes a file argument ONLY in the constructor ( ASP::NextLink->new("linkfile") ). new() parses the linkfile given; the information derived from this linkfile is subsequently available only through the object returned by new().

Attempts to call object methods on a class and attempts to call class methods on an object will both trigger an exception.

However, in the interest of portability of algorithms to ASP::NextLink, indexes passed to the GetNth*() methods remain 1-based, as they are in MSWC.NextLink.

USE

METHOD REFERENCE

new( linkfile )

The new() class method accepts a virtual or relative path. (Paths handed to new() are run through the $Server->MapPath() method.) new() returns a reference to an ASP::NextLink object.

        my $linkfile = "/links.txt";
        my $nl = ASP::NextLink->new( $linkfile );

From now we will refer to the object returned by new() as $nl.

GetListCount()

Returns the number of links (lines containing tab-separated fields) in link file.

        my $count = $nl->GetListCount();

GetListIndex()

Index of the current page in the link file.

GetPreviousURL()

URL of the previous page in the link file.

GetPreviousDescription()

Description of the previous page in the link file.

GetNextURL()

URL of the next page in the link file.

GetNextDescription()

Description of the next page in the link file.

GetNthURL( n )

URL of the nth page in the link file. NOTE: Index is 1-based, NOT zero-based.

GetNthDescription( n )

Description of the nth page in the link file. NOTE: Index is 1-based, NOT zero-based.

AUTHOR

Tim Hammerquist <cafall@voffice.net>

HISTORY

Version 0.11

First functional release

SEE ALSO

ASP(3)