2 // $Id: back.inc.php,v 1.10 2011/01/25 15:01:01 henoheno Exp $
4 // 2003-2004 PukiWiki Developers Team
5 // 2002 Katsumi Saito <katsumi@jo1upk.ymt.prug.or.jp>
9 // Allow specifying back link by page name and anchor, or
10 // by relative or site-abusolute path
11 define('PLUGIN_BACK_ALLOW_PAGELINK', PKWK_SAFE_MODE); // FALSE(Compat), TRUE
13 // Allow JavaScript (Compat)
14 define('PLUGIN_BACK_ALLOW_JAVASCRIPT', TRUE); // TRUE(Compat), FALSE, PKWK_ALLOW_JAVASCRIPT
17 define('PLUGIN_BACK_USAGE', '#back([text],[center|left|right][,0(no hr)[,Page-or-URI-to-back]])');
18 function plugin_back_convert()
20 global $_msg_back_word, $script;
22 if (func_num_args() > 4) return PLUGIN_BACK_USAGE;
23 list($word, $align, $hr, $href) = array_pad(func_get_args(), 4, '');
26 $word = ($word == '') ? $_msg_back_word : htmlsc($word);
28 $align = strtolower(trim($align));
30 case '' : $align = 'center';
32 case 'center': /*FALLTHROUGH*/
33 case 'left' : /*FALLTHROUGH*/
35 default : return PLUGIN_BACK_USAGE;
38 $hr = (trim($hr) != '0') ? '<hr class="full_hr" />' . "\n" : '';
43 if (PLUGIN_BACK_ALLOW_PAGELINK) {
45 $href = rawurlencode($href);
47 $array = anchor_explode($href);
48 $array[0] = rawurlencode($array[0]);
49 $array[1] = ($array[1] != '') ? '#' . rawurlencode($array[1]) : '';
50 $href = $script . '?' . $array[0] . $array[1];
51 $link = is_page($array[0]);
54 $href = rawurlencode($href);
57 if (! PLUGIN_BACK_ALLOW_JAVASCRIPT)
58 return PLUGIN_BACK_USAGE . ': Set a page name or an URI';
59 $href = 'javascript:history.go(-1)';
64 return $hr . '<div style="text-align:' . $align . '">' .
65 '[ <a href="' . $href . '">' . $word . '</a> ]</div>' . "\n";
68 return $hr . '<div style="text-align:' . $align . '">' .
69 '[ <span class="noexists">' . $word . '<a href="' . $href .
70 '">?</a></span> ]</div>' . "\n";