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Easy linking to Static Pages

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Subject

[QUOTE][u]Quote by: James Fryer[/u][p][code]
I have expanded on this idea a bit. I wanted to support URLs and I've also 
added support for story links and links within the site. You can specify 
a label for the link with the bar character. E.g.:
    [static:foobar] links to static page 'foobar' with the label taken from 
        the page title
    [static:foobar|Foo Bar] links to static page 'foobar' with the label 'Foo Bar'.
 
I gave it a cheezy name, ezlink. I added an option, $_CONF['enable_ezlink'], 
to config.php.

The code below may well be corrupted with stupid smiley faces/missing backslashes so 
email me if you want a clean version. I've not tested this much so any comments welcome.

I added this code to lib-custom.php:

-------- Cut Here --------
// Expand 'ezlinks' to static pages and external sites
// Supports the following formats:
//  [static:page-id] - Links to static page.
//  [site:page-id] - Links to site root
//  [story:story-id] - Links to story
//  [http://example.com] - Links to URL
// Any link can be followed by a bar character '|' and some label text.
function process_ezlinks($text) 
    {
    global $_TABLES, $_CONF, $_USER;
    
    // Get the matches
    $count = preg_match_all('{[([^:]*)<img align=absmiddle src='images/smilies/frown.gif' alt='Frown'>.*?)]}',$text,$match);
    
    // Loop through the matches, replacing according to the text before the colon
    for ($i = 0; $i < $count; $i++) 
        {
        $command = $match[1][$i];
        switch ($command)
            {
        case 'static':
            $result = DB_query ("SELECT sp_title FROM {$_TABLES['staticpage']} WHERE (sp_id = '{$match[2][$i]}')");
            $A = DB_fetchArray($result);
            $url = $_CONF['site_url'] . '/staticpages/index.php?page=' . $match[2][$i];
            _get_label($url, $label, $A['sp_title']);
            $text = preg_replace(_normalise_match($match[0][$i]), 
                    '<a href="' . $url . '">' . $label . '</a>',
                    $text);
            break;
        case 'story':
            $result = DB_query ("SELECT title FROM {$_TABLES['stories']} WHERE (sid = '{$match[2][$i]}')");
            $A = DB_fetchArray($result);
            $url = $_CONF['site_url'] . '/article.php?story=' . $match[2][$i];
            _get_label($url, $label, $A['title']);
            $text = preg_replace(_normalise_match($match[0][$i]), 
                    '<a href="' . $url . '">' . $label . '</a>',
                    $text);
            break;
        case 'site':
            $url = $match[2][$i];
            _get_label($url, $label);
            $url = $_CONF['site_url'] . '/' . $url;
            $text = preg_replace(_normalise_match($match[0][$i]), 
                    '<a href="' . $url . '">' . $label . '</a>',
                    $text);
            break;
        case 'http':
            $url = $match[2][$i];
            _get_label($url, $label, substr($url, 2)); // Remove '//'
            $text = preg_replace(_normalise_match($match[0][$i]), 
                    '<a href="' . 'http:' . $url . '">' . $label . '</a>',
                    $text);
            break;
            }
        }
    return $text;
    }

// Get the label from the URL and tidy the URL
// Encoded as URL or URL|label
function _get_label(&$url, &$label, $default_label=NULL)
    {
    $labelpos = strpos($url, '|');
    if ($labelpos === FALSE)
        $label = is_null($default_label) ? $url : $default_label;
    else {
        $label = substr($url, $labelpos + 1);
        $url = substr($url, 0, $labelpos);
        }
    }
    
// Convert a link delimited by square backets into a suitable argument for 'preg_match' 
// by backslash-escaping square brackets and wrapping with braces
function _normalise_match($text)
    {
    $text = str_replace('|', '|', $text);
    return '{\[' . substr($text, 1, strlen($text) - 2) . ']\}';
    }
-------- Cut Here --------

To implement this fully you need to change code in files staticpages/index.php, 
plugins/staticpages/functions.inc and lib-common.php, I have supplied the changes 
below with some context:

-------- staticpages/index.php -------- 
    //Check for type (ie html or php)
    if ($A['sp_php'] == 1) {
        $retval .= eval (stripslashes ($A['sp_content']));
    } else {
        if (isset($_CONF['enable_ezlink']) && $_CONF['enable_ezlink'])
            $retval .= process_ezlinks(stripslashes ($A['sp_content']));
        else            
            $retval .= stripslashes ($A['sp_content']);
    }
    if ($A['sp_format'] <> 'blankpage') {

-------- plugins/staticpages/functions.inc -------- 
            // Check for type (ie html or php)
            if ($spresult['sp_php'] == 1) {
                $retval .= eval (stripslashes ($spresult['sp_content']));
            } else {
                if (isset($_CONF['enable_ezlink']) && $_CONF['enable_ezlink'])
                    $retval .= process_ezlinks(stripslashes ($spresult['sp_content']));
                else            
                    $retval .= stripslashes ($spresult['sp_content']);
            }

if (($_SP_CONF['in_block'] == 1) && !empty ($spresult['sp_title'])) {

-------- lib-common.php -------- 
function COM_article( $A, $index='', $storytpl='storytext.thtml' )
{
    global $_TABLES, $mode, $_CONF, $_USER, $LANG01, $LANG05, $LANG11, $_THEME_URL;

$curtime = COM_getUserDateTimeFormat( $A['day'] );
    $A['day'] = $curtime[0];
    
    // Handle link expansions
    if (isset($_CONF['enable_ezlink']) && $_CONF['enable_ezlink'])
    {
        $A['introtext'] = process_ezlinks( $A['introtext'] );
        $A['bodytext'] = process_ezlinks( $A['bodytext'] );
    }

// If plain text then replace newlines with <br> tags
    if( $A['postmode'] == 'plaintext' )

[/code]
[/p][/QUOTE]

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