4 * (C) 2003-2004 PukiWiki Developer Team
5 * (C) 2002 Katsumi Saito <katsumi@jo1upk.ymt.prug.or.jp>
7 * $Id: back.inc.php,v 1.7 2004/12/02 12:46:05 henoheno Exp $
10 // Allow specifying back link by page name and anchor, or
11 // by relative or site-abusolute path
12 define('PLUGIN_BACK_ALLOW_PAGELINK', PKWK_SAFE_MODE); // FALSE(Compat), TRUE
14 // Allow JavaScript (Compat)
15 define('PLUGIN_BACK_ALLOW_JAVASCRIPT', TRUE); // TRUE(Compat), FALSE, PKWK_ALLOW_JAVASCRIPT
18 define('PLUGIN_BACK_USAGE', '#back([text],[center|left|right][,0(no hr)[,Page-or-URI-to-back]])');
19 function plugin_back_convert()
21 global $_msg_back_word, $script;
23 if (func_num_args() > 4) return PLUGIN_BACK_USAGE;
24 list($word, $align, $hr, $href) = array_pad(func_get_args(), 4, '');
27 $word = ($word == '') ? $_msg_back_word : htmlspecialchars($word);
29 $align = strtolower(trim($align));
31 case '' : $align = 'center';
33 case 'center': /*FALLTHROUGH*/
34 case 'left' : /*FALLTHROUGH*/
36 default : return PLUGIN_BACK_USAGE;
39 $hr = (trim($hr) != '0') ? '<hr class="full_hr" />' . "\n" : '';
44 if (PLUGIN_BACK_ALLOW_PAGELINK) {
46 $href = rawurlencode($href);
48 $array = anchor_explode($href);
49 $array[0] = rawurlencode($array[0]);
50 $array[1] = ($array[1] != '') ? '#' . rawurlencode($array[1]) : '';
51 $href = $script . '?' . $array[0] . $array[1];
52 $link = is_page($array[0]);
55 $href = rawurlencode($href);
58 if (! PLUGIN_BACK_ALLOW_JAVASCRIPT)
59 return PLUGIN_BACK_USAGE . ': Set a page name or an URI';
60 $href = 'javascript:history.go(-1)';
65 return $hr . '<div style="text-align:' . $align . '">' .
66 '[ <a href="' . $href . '">' . $word . '</a> ]</div>' . "\n";
69 return $hr . '<div style="text-align:' . $align . '">' .
70 '[ <span class="noexists">' . $word . '<a href="' . $href .
71 '">?</a></span> ]</div>' . "\n";