OSDN Git Service

BugTrack/2514 Support PHP 8
[pukiwiki/pukiwiki.git] / plugin / tracker.inc.php
index ca7df31..9b1cd10 100644 (file)
@@ -1,17 +1,34 @@
 <?php
-/////////////////////////////////////////////////
-// PukiWiki - Yet another WikiWikiWeb clone.
-//
-// $Id: tracker.inc.php,v 1.7 2003/08/02 02:02:27 arino Exp $
+// PukiWiki - Yet another WikiWikiWeb clone
+// tracker.inc.php
+// Copyright 2003-2021 PukiWiki Development Team
+// License: GPL v2 or (at your option) any later version
 //
+// Issue tracker plugin (See Also bugtrack plugin)
+
+// tracker_listで表示しないページ名(正規表現で)
+// 'SubMenu'ページ および '/'を含むページを除外する
+define('TRACKER_LIST_EXCLUDE_PATTERN','#^SubMenu$|/#');
+// 制限しない場合はこちら
+//define('TRACKER_LIST_EXCLUDE_PATTERN','#(?!)#');
+
+// 項目の取り出しに失敗したページを一覧に表示する
+define('TRACKER_LIST_SHOW_ERROR_PAGE',TRUE);
+
+// Use cache
+define('TRACKER_LIST_USE_CACHE', TRUE);
 
 function plugin_tracker_convert()
 {
-       global $script,$vars;
-       
-       $page = $vars['page'];
-       
+       global $vars;
+
+       $script = get_base_uri();
+       if (PKWK_READONLY) return ''; // Show nothing
+
+       $base = $refer = $vars['page'];
+
        $config_name = 'default';
+       $form = 'form';
        $options = array();
        if (func_num_args())
        {
@@ -21,153 +38,228 @@ function plugin_tracker_convert()
                        case 3:
                                $options = array_splice($args,2);
                        case 2:
-                               $_page = get_fullname($args[1],$page);
-                               if (is_pagename($_page))
-                               {
-                                       $page = $_page;
-                               }
+                               $args[1] = get_fullname($args[1],$base);
+                               $base = is_pagename($args[1]) ? $args[1] : $base;
                        case 1:
-                               $config_name = $args[0];
+                               $config_name = ($args[0] != '') ? $args[0] : $config_name;
+                               list($config_name,$form) = array_pad(explode('/',$config_name,2),2,$form);
                }
        }
-       
+
        $config = new Config('plugin/tracker/'.$config_name);
-       
+
        if (!$config->read())
        {
-               return "<p>config file '".htmlspecialchars($config_name)."' not found.</p>";
+               return "<p>config file '".htmlsc($config_name)."' not found.</p>";
        }
-       
+
        $config->config_name = $config_name;
-       
-       $fields = plugin_tracker_get_fields($page,$config);
-       
-       $retval = convert_html(plugin_tracker_get_source($config->page.'/form'));
-       
+
+       $fields = plugin_tracker_get_fields($base,$refer,$config);
+
+       $form = $config->page.'/'.$form;
+       if (!is_page($form))
+       {
+               return "<p>config file '".make_pagelink($form)."' not found.</p>";
+       }
+       $retval = convert_html(plugin_tracker_get_source($form));
+       $hiddens = '';
+
        foreach (array_keys($fields) as $name)
        {
-               $retval = str_replace("[$name]",$fields[$name]->get_tag(),$retval);
+               $replace = $fields[$name]->get_tag();
+               if (is_a($fields[$name],'Tracker_field_hidden'))
+               {
+                       $hiddens .= $replace;
+                       $replace = '';
+               }
+               $retval = str_replace("[$name]",$replace,$retval);
        }
        return <<<EOD
-<form enctype="multipart/form-data" action="$script" method="post">
+<form enctype="multipart/form-data" action="$script" method="post"
+ class="_p_tracker_form">
+<div>
 $retval
+$hiddens
+</div>
 </form>
 EOD;
 }
 function plugin_tracker_action()
 {
-       global $script,$post,$vars,$now;
-       
+       global $post, $vars, $now;
+
+       if (PKWK_READONLY) die_message('PKWK_READONLY prohibits editing');
+
        $config_name = array_key_exists('_config',$post) ? $post['_config'] : '';
-       
+
        $config = new Config('plugin/tracker/'.$config_name);
        if (!$config->read())
        {
-               return "<p>config file '".htmlspecialchars($config_name)."' not found.</p>";
+               return "<p>config file '".htmlsc($config_name)."' not found.</p>";
        }
        $config->config_name = $config_name;
        $source = $config->page.'/page';
-       
-       $refer = array_key_exists('_refer',$post) ? $post['_refer'] : '';
-       
+
+       $refer = array_key_exists('_refer',$post) ? $post['_refer'] : $post['_base'];
+
        if (!is_pagename($refer))
        {
                return array(
                        'msg'=>'cannot write',
-                       'body'=>'page name ('.htmlspecialchars($refer).') is not valid.'
+                       'body'=>'page name ('.htmlsc($refer).') is not valid.'
                );
        }
        if (!is_page($source))
        {
                return array(
                        'msg'=>'cannot write',
-                       'body'=>'page template ('.htmlspecialchars($source).') is not exist.'
+                       'body'=>'page template ('.htmlsc($source).') is not exist.'
                );
        }
-       // ¥Ú¡¼¥¸Ì¾¤ò·èÄê
-       $base = $post['_refer'];
-       $num = 0;
-       $name = (array_key_exists('_name',$post)) ? $post['_name'] : '';
-       if (array_key_exists('_page',$post))
-       {
-               $page = $real = $post['_page'];
-       }
-       else
+       // ページ名を決定
+       $base = $post['_base'];
+       if (!is_pagename($base))
        {
-               $real = is_pagename($name) ? $name : ++$num;
-               $page = get_fullname('./'.$real,$base);
+               return array(
+                       'msg'=>'cannot write',
+                       'body'=>'page name ('.htmlsc($base).') is not valid.'
+               );
        }
-       if (!is_pagename($page))
-       {
-               $page = $base;
+       $name = (array_key_exists('_name',$post)) ? $post['_name'] : '';
+       $_page = (array_key_exists('_page',$post)) ? $post['_page'] : '';
+       if (is_pagename($_page)) {
+               // Create _page page if _page is in parameters
+               $page = $real = $_page;
+       } else if (is_pagename($name)) {
+               // Create "$base/$name" page if _name is in parameters
+               $real = $name;
+               $page = get_fullname('./' . $name, $base);
+       } else {
+               $page = '';
        }
-       
-       while (is_page($page))
-       {
-               $real = ++$num;
-               $page = "$base/$real";
+       if (!is_pagename($page) || is_page($page)) {
+               // Need new page name => Get last article number + 1
+               $page_list = plugin_tracker_get_page_list($base, false);
+               usort($page_list, '_plugin_tracker_list_paganame_compare');
+               if (count($page_list) === 0) {
+                       $num = 1;
+               } else {
+                       $latest_page = $page_list[count($page_list) - 1]['name'];
+                       $num = intval(substr($latest_page, strlen($base) + 1)) + 1;
+               }
+               $real = '' . $num;
+               $page = $base . '/' . $num;
        }
-       // ¥Ú¡¼¥¸¥Ç¡¼¥¿¤òÀ¸À®
-       $postdata = join('',plugin_tracker_get_source($source));
-       
-       // µ¬Äê¤Î¥Ç¡¼¥¿
+       // ページデータを生成
+       $postdata = plugin_tracker_get_source($source);
+
+       // è¦\8få®\9aã\81®ã\83\87ã\83¼ã\82¿
        $_post = array_merge($post,$_FILES);
        $_post['_date'] = $now;
        $_post['_page'] = $page;
        $_post['_name'] = $name;
        $_post['_real'] = $real;
        // $_post['_refer'] = $_post['refer'];
-       
-       $fields = plugin_tracker_get_fields($page,$config);
-       
+
+       $fields = plugin_tracker_get_fields($page,$refer,$config);
+
+       check_editable($page, true, true);
+       // Creating an empty page, before attaching files
+       touch(get_filename($page));
+
        foreach (array_keys($fields) as $key)
        {
-               if (array_key_exists($key,$_post))
+               $value = array_key_exists($key,$_post) ?
+                       $fields[$key]->format_value($_post[$key]) : '';
+
+               foreach (array_keys($postdata) as $num)
                {
-                       $postdata = str_replace("[$key]",
-                               $fields[$key]->format_value($_post[$key]),$postdata);
+                       if (trim($postdata[$num]) == '')
+                       {
+                               continue;
+                       }
+                       $postdata[$num] = str_replace(
+                               "[$key]",
+                               ($postdata[$num]{0} == '|' or $postdata[$num]{0} == ':') ?
+                                       str_replace('|','&#x7c;',$value) : $value,
+                               $postdata[$num]
+                       );
                }
        }
-       
-       // ½ñ¤­¹þ¤ß
-       page_write($page,$postdata);
-       
-       $r_page = rawurlencode($page);
-       
-       header("Location: $script?$r_page");
+
+       // Writing page data, without touch
+       page_write($page, join('', $postdata));
+       pkwk_headers_sent();
+       header('Location: ' . get_page_uri($page, PKWK_URI_ROOT));
        exit;
 }
-// ¥Õ¥£¡¼¥ë¥É¥ª¥Ö¥¸¥§¥¯¥È¤ò¹½ÃÛ¤¹¤ë
-function plugin_tracker_get_fields($page,&$config)
+
+/**
+ * Page_list comparator
+ */
+function _plugin_tracker_list_paganame_compare($a, $b)
+{
+       return strnatcmp($a['name'], $b['name']);
+}
+
+/**
+ * Get page list for "$page/"
+ */
+function plugin_tracker_get_page_list($page, $needs_filetime) {
+       $page_list = array();
+       $pattern = $page . '/';
+       $pattern_len = strlen($pattern);
+       foreach (get_existpages() as $p) {
+               if (strncmp($p, $pattern, $pattern_len) === 0 && pkwk_ctype_digit(substr($p, $pattern_len))) {
+                       if ($needs_filetime) {
+                               $page_list[] = array('name'=>$p,'filetime'=>get_filetime($p));
+                       } else {
+                               $page_list[] = array('name'=>$p);
+                       }
+               }
+       }
+       return $page_list;
+}
+
+// フィールドオブジェクトを構築する
+function plugin_tracker_get_fields($base,$refer,&$config)
 {
        global $now,$_tracker_messages;
-       
+
        $fields = array();
-       // µ¬Äê¤Î¥ª¥Ö¥¸¥§¥¯¥È
-       $fields['_date']   = &new Tracker_field_text(  array('_date',  $_tracker_messages['btn_date'],  '','20',''),$page,$config);
-       $fields['_update'] = &new Tracker_field_text(  array('_update',$_tracker_messages['btn_update'],'','20',''),$page,$config);
-       $fields['_past']   = &new Tracker_field_text(  array('_past',  $_tracker_messages['btn_past'],  '','20',''),$page,$config);
-       $fields['_page']   = &new Tracker_field_page(  array('_page',  $_tracker_messages['btn_page'],  '','20',''),$page,$config);
-       $fields['_name']   = &new Tracker_field_text(  array('_name',  $_tracker_messages['btn_name'],  '','20',''),$page,$config);
-       $fields['_real']   = &new Tracker_field_text(  array('_real',  $_tracker_messages['btn_real'],  '','20',''),$page,$config);
-       $fields['_refer']  = &new Tracker_field_page(  array('_refer', $_tracker_messages['btn_refer'], '','20',''),$page,$config);
-       $fields['_submit'] = &new Tracker_field_submit(array('_submit',$_tracker_messages['btn_submit'],'','',  ''),$page,$config);
-       
+       // 予約語
+       foreach (array(
+               '_date'=>'text',    // 投稿日時
+               '_update'=>'date',  // 最終更新
+               '_past'=>'past',    // 経過(passage)
+               '_page'=>'page',    // ページ名
+               '_name'=>'text',    // 指定されたページ名
+               '_real'=>'real',    // 実際のページ名
+               '_refer'=>'page',   // 参照元(フォームのあるページ)
+               '_base'=>'page',    // 基準ページ
+               '_submit'=>'submit' // 追加ボタン
+               ) as $field=>$class)
+       {
+               $class = 'Tracker_field_'.$class;
+               $fields[$field] = new $class(array($field,$_tracker_messages["btn$field"],'','20',''),$base,$refer,$config);
+       }
+
        foreach ($config->get('fields') as $field)
        {
-               // 0=>¹àÌÜ̾ 1=>¸«½Ð¤· 2=>·Á¼° 3=>¥ª¥×¥·¥ç¥ó 4=>¥Ç¥Õ¥©¥ë¥ÈÃÍ
+               // 0=>項目名 1=>見出し 2=>形式 3=>オプション 4=>デフォルト値
                $class = 'Tracker_field_'.$field[2];
                if (!class_exists($class))
-               { // ¥Ç¥Õ¥©¥ë¥È
+               { // デフォルト
                        $class = 'Tracker_field_text';
                        $field[2] = 'text';
                        $field[3] = '20';
                }
-               $fields[$field[0]] = &new $class($field,$page,$config);
+               $fields[$field[0]] = new $class($field,$base,$refer,$config);
        }
        return $fields;
 }
-// ¥Õ¥£¡¼¥ë¥É¥¯¥é¥¹
+// ã\83\95ã\82£ã\83¼ã\83«ã\83\89ã\82¯ã\83©ã\82¹
 class Tracker_field
 {
        var $name;
@@ -175,18 +267,28 @@ class Tracker_field
        var $values;
        var $default_value;
        var $page;
+       var $refer;
        var $config;
        var $data;
-       
-       function Tracker_field($field,$page,&$config)
+       var $sort_type = SORT_REGULAR;
+       var $id = 0;
+
+       function Tracker_field($field,$page,$refer,&$config)
+       {
+               $this->__construct($field, $page, $refer, $config);
+       }
+       function __construct($field,$page,$refer,&$config)
        {
                global $post;
-               
+               static $id = 0;
+
+               $this->id = ++$id;
                $this->name = $field[0];
                $this->title = $field[1];
                $this->values = explode(',',$field[3]);
                $this->default_value = $field[4];
                $this->page = $page;
+               $this->refer = $refer;
                $this->config = &$config;
                $this->data = array_key_exists($this->name,$post) ? $post[$this->name] : '';
        }
@@ -199,33 +301,37 @@ class Tracker_field
        }
        function format_value($value)
        {
-               return str_replace('|','&#x7c;',$value);
+               return $value;
        }
        function format_cell($str)
        {
                return $str;
        }
-       function compare($str1,$str2)
+       function get_value($value)
        {
-               return strnatcasecmp($str1,$str2);
+               return $value;
        }
 }
 class Tracker_field_text extends Tracker_field
 {
+       var $sort_type = SORT_STRING;
+
        function get_tag()
        {
-               $s_name = htmlspecialchars($this->name);
-               $s_size = htmlspecialchars($this->values[0]);
-               $s_value = htmlspecialchars($this->default_value);
+               $s_name = htmlsc($this->name);
+               $s_size = htmlsc($this->values[0]);
+               $s_value = htmlsc($this->default_value);
                return "<input type=\"text\" name=\"$s_name\" size=\"$s_size\" value=\"$s_value\" />";
        }
 }
 class Tracker_field_page extends Tracker_field_text
 {
+       var $sort_type = SORT_STRING;
+
        function format_value($value)
        {
                global $WikiName;
-               
+
                $value = strip_bracket($value);
                if (is_pagename($value))
                {
@@ -234,45 +340,30 @@ class Tracker_field_page extends Tracker_field_text
                return parent::format_value($value);
        }
 }
+class Tracker_field_real extends Tracker_field_text
+{
+       var $sort_type = SORT_REGULAR;
+}
 class Tracker_field_title extends Tracker_field_text
 {
+       var $sort_type = SORT_STRING;
+
        function format_cell($str)
        {
                make_heading($str);
                return $str;
        }
 }
-class Tracker_field_file extends Tracker_field_format
-{
-       function get_tag()
-       {
-               $s_name = htmlspecialchars($this->name);
-               $s_size = htmlspecialchars($this->values[0]);
-               return "<input type=\"file\" name=\"$s_name\" size=\"$s_size\" />";
-       }
-       function format_value($str)
-       {
-               if (array_key_exists($this->name,$_FILES))
-               {
-                       require_once(PLUGIN_DIR.'attach.inc.php');
-                       $result = attach_upload($_FILES[$this->name],$this->page);
-                       if ($result['result']) // ¥¢¥Ã¥×¥í¡¼¥ÉÀ®¸ù
-                       {
-                               return parent::format_value($this->page.'/'.$_FILES[$this->name]['name']);
-                       }
-               }
-               // ¥Õ¥¡¥¤¥ë¤¬»ØÄꤵ¤ì¤Æ¤¤¤Ê¤¤¤«¡¢¥¢¥Ã¥×¥í¡¼¥É¤Ë¼ºÇÔ
-               return parent::format_value('');
-       }
-}
 class Tracker_field_textarea extends Tracker_field
 {
+       var $sort_type = SORT_STRING;
+
        function get_tag()
        {
-               $s_name = htmlspecialchars($this->name);
-               $s_cols = htmlspecialchars($this->values[0]);
-               $s_rows = htmlspecialchars($this->values[1]);
-               $s_value = htmlspecialchars($this->default_value);
+               $s_name = htmlsc($this->name);
+               $s_cols = htmlsc($this->values[0]);
+               $s_rows = htmlsc($this->values[1]);
+               $s_value = htmlsc($this->default_value);
                return "<textarea name=\"$s_name\" cols=\"$s_cols\" rows=\"$s_rows\">$s_value</textarea>";
        }
        function format_cell($str)
@@ -285,18 +376,25 @@ class Tracker_field_textarea extends Tracker_field
                return $str;
        }
 }
+
 class Tracker_field_format extends Tracker_field
 {
+       var $sort_type = SORT_STRING;
+
        var $styles = array();
        var $formats = array();
-       
-       function Tracker_field_format($field,$page,&$config)
+
+       function Tracker_field_format($field,$page,$refer,&$config)
+       {
+               $this->__construct($field, $page, $refer, $config);
+       }
+       function __construct($field,$page,$refer,&$config)
        {
-               parent::Tracker_field($field,$page,$config);
-               
+               parent::__construct($field,$page,$refer,$config);
+
                foreach ($this->config->get($this->name) as $option)
                {
-                       list($key,$style,$format) = array_pad(array_map(create_function('$a','return trim($a);'),$option),3,'');
+                       list($key,$style,$format) = array_pad(array_map('trim',$option),3,'');
                        if ($style != '')
                        {
                                $this->styles[$key] = $style;
@@ -304,13 +402,13 @@ class Tracker_field_format extends Tracker_field
                        if ($format != '')
                        {
                                $this->formats[$key] = $format;
-                       } 
+                       }
                }
        }
        function get_tag()
        {
-               $s_name = htmlspecialchars($this->name);
-               $s_size = htmlspecialchars($this->values[0]);
+               $s_name = htmlsc($this->name);
+               $s_size = htmlsc($this->values[0]);
                return "<input type=\"text\" name=\"$s_name\" size=\"$s_size\" />";
        }
        function get_key($str)
@@ -332,45 +430,77 @@ class Tracker_field_format extends Tracker_field
                return array_key_exists($key,$this->styles) ? $this->styles[$key] : '%s';
        }
 }
+class Tracker_field_file extends Tracker_field_format
+{
+       var $sort_type = SORT_STRING;
+
+       function get_tag()
+       {
+               $s_name = htmlsc($this->name);
+               $s_size = htmlsc($this->values[0]);
+               return "<input type=\"file\" name=\"$s_name\" size=\"$s_size\" />";
+       }
+       function format_value($str)
+       {
+               if (array_key_exists($this->name,$_FILES))
+               {
+                       require_once(PLUGIN_DIR.'attach.inc.php');
+                       $result = attach_upload($_FILES[$this->name],$this->page);
+                       if ($result['result']) // アップロード成功
+                       {
+                               return parent::format_value($this->page.'/'.$_FILES[$this->name]['name']);
+                       }
+               }
+               // ファイルが指定されていないか、アップロードに失敗
+               return parent::format_value('');
+       }
+}
 class Tracker_field_radio extends Tracker_field_format
 {
+       var $sort_type = SORT_NUMERIC;
+
        function get_tag()
        {
-               $s_name = htmlspecialchars($this->name);
+               $s_name = htmlsc($this->name);
                $retval = '';
+               $id = 0;
                foreach ($this->config->get($this->name) as $option)
                {
-                       $s_option = htmlspecialchars($option[0]);
+                       $s_option = htmlsc($option[0]);
                        $checked = trim($option[0]) == trim($this->default_value) ? ' checked="checked"' : '';
-                       $retval .= "<input type=\"radio\" name=\"$s_name\" value=\"$s_option\"$checked />$s_option\n";
+                       ++$id;
+                       $s_id = '_p_tracker_' . $s_name . '_' . $this->id . '_' . $id;
+                       $retval .= '<input type="radio" name="' .  $s_name . '" id="' . $s_id .
+                               '" value="' . $s_option . '"' . $checked . ' />' .
+                               '<label for="' . $s_id . '">' . $s_option . '</label>' . "\n";
                }
-               
+
                return $retval;
        }
        function get_key($str)
        {
                return $str;
        }
-       function compare($str1,$str2)
+       function get_value($value)
        {
-               static $options;
-               
-               if (!isset($options))
+               static $options = array();
+               if (!array_key_exists($this->name,$options))
                {
-                       $options = array_flip(array_map(create_function('$arr','return $arr[0];'),$this->config->get($this->name)));
+                       // 'reset' means function($arr) { return $arr[0]; }
+                       $options[$this->name] = array_flip(array_map('reset',$this->config->get($this->name)));
                }
-               $n1 = array_key_exists($str1,$options) ? $options[$str1] : $str1;
-               $n2 = array_key_exists($str2,$options) ? $options[$str2] : $str2;
-               return ($n1 == $n2) ? 0 : ($n1 > $n2 ? -1 : 1);
+               return array_key_exists($value,$options[$this->name]) ? $options[$this->name][$value] : $value;
        }
 }
 class Tracker_field_select extends Tracker_field_radio
 {
+       var $sort_type = SORT_NUMERIC;
+
        function get_tag($empty=FALSE)
        {
-               $s_name = htmlspecialchars($this->name);
+               $s_name = htmlsc($this->name);
                $s_size = (array_key_exists(0,$this->values) and is_numeric($this->values[0])) ?
-                       ' size="'.htmlspecialchars($this->values[0]).'"' : '';
+                       ' size="'.htmlsc($this->values[0]).'"' : '';
                $s_multiple = (array_key_exists(1,$this->values) and strtolower($this->values[1]) == 'multiple') ?
                        ' multiple="multiple"' : '';
                $retval = "<select name=\"{$s_name}[]\"$s_size$s_multiple>\n";
@@ -381,41 +511,50 @@ class Tracker_field_select extends Tracker_field_radio
                $defaults = array_flip(preg_split('/\s*,\s*/',$this->default_value,-1,PREG_SPLIT_NO_EMPTY));
                foreach ($this->config->get($this->name) as $option)
                {
-                       $s_option = htmlspecialchars($option[0]);
+                       $s_option = htmlsc($option[0]);
                        $selected = array_key_exists(trim($option[0]),$defaults) ? ' selected="selected"' : '';
                        $retval .= " <option value=\"$s_option\"$selected>$s_option</option>\n";
                }
                $retval .= "</select>";
-               
+
                return $retval;
        }
 }
 class Tracker_field_checkbox extends Tracker_field_radio
 {
+       var $sort_type = SORT_NUMERIC;
+
        function get_tag($empty=FALSE)
        {
-               $s_name = htmlspecialchars($this->name);
+               $s_name = htmlsc($this->name);
                $defaults = array_flip(preg_split('/\s*,\s*/',$this->default_value,-1,PREG_SPLIT_NO_EMPTY));
                $retval = '';
+               $id = 0;
                foreach ($this->config->get($this->name) as $option)
                {
-                       $s_option = htmlspecialchars($option[0]);
+                       $s_option = htmlsc($option[0]);
                        $checked = array_key_exists(trim($option[0]),$defaults) ?
                                ' checked="checked"' : '';
-                       $retval .= "<input type=\"checkbox\" name=\"{$s_name}[]\" value=\"$s_option\"$checked />$s_option\n";
+                       ++$id;
+                       $s_id = '_p_tracker_' . $s_name . '_' . $this->id . '_' . $id;
+                       $retval .= '<input type="checkbox" name="' . $s_name .
+                               '[]" id="' . $s_id . '" value="' . $s_option . '"' . $checked . ' />' .
+                               '<label for="' . $s_id . '">' . $s_option . '</label>' . "\n";
                }
-               
+
                return $retval;
        }
 }
 class Tracker_field_hidden extends Tracker_field_radio
 {
+       var $sort_type = SORT_NUMERIC;
+
        function get_tag($empty=FALSE)
        {
-               $s_name = htmlspecialchars($this->name);
-               $s_default = htmlspecialchars($this->default_value);
+               $s_name = htmlsc($this->name);
+               $s_default = htmlsc($this->default_value);
                $retval = "<input type=\"hidden\" name=\"$s_name\" value=\"$s_default\" />\n";
-               
+
                return $retval;
        }
 }
@@ -423,104 +562,241 @@ class Tracker_field_submit extends Tracker_field
 {
        function get_tag()
        {
-               $s_title = htmlspecialchars($this->title);
-               $s_page = htmlspecialchars($this->page);
-               $s_config = htmlspecialchars($this->config->config_name);
-               
+               $s_title = htmlsc($this->title);
+               $s_page = htmlsc($this->page);
+               $s_refer = htmlsc($this->refer);
+               $s_config = htmlsc($this->config->config_name);
+
                return <<<EOD
 <input type="submit" value="$s_title" />
 <input type="hidden" name="plugin" value="tracker" />
-<input type="hidden" name="_refer" value="$s_page" />
+<input type="hidden" name="_refer" value="$s_refer" />
+<input type="hidden" name="_base" value="$s_page" />
 <input type="hidden" name="_config" value="$s_config" />
 EOD;
        }
 }
+class Tracker_field_date extends Tracker_field
+{
+       var $sort_type = SORT_NUMERIC;
+
+       function format_cell($timestamp)
+       {
+               return format_date($timestamp);
+       }
+}
+class Tracker_field_past extends Tracker_field
+{
+       var $sort_type = SORT_NUMERIC;
+
+       function format_cell($timestamp)
+       {
+               return '&passage("' . get_date_atom($timestamp + LOCALZONE) . '");';
+       }
+       function get_value($value)
+       {
+               return UTIME - $value;
+       }
+}
 ///////////////////////////////////////////////////////////////////////////
-// °ìÍ÷ɽ¼¨
+// 一覧表示
 function plugin_tracker_list_convert()
 {
-       global $vars;
-       
+       global $vars, $_title_cannotread;
        $config = 'default';
-       $page = $vars['page'];
+       $page = $refer = $vars['page'];
        $field = '_page';
-       $order = -1;
+       $order = '';
+       $list = 'list';
        $limit = NULL;
+       $start_n = NULL;
+       $last_n = NULL;
        if (func_num_args())
        {
                $args = func_get_args();
                switch (count($args))
                {
-                       case 5:
-                               $limit = is_numeric($args[4]) ? $args[4] : $limit;
                        case 4:
-                               $order = (strpos('ascending',strtolower($args[3])) === 0) ? 1 : -1;
+                               $range_m = null;
+                               if (is_numeric($args[3])) {
+                                       $limit = $args[3];
+                               } else {
+                                       if (preg_match('#^(\d+)-(\d+)$#', $args[3], $range_m)) {
+                                               $start_n = intval($range_m[1]);
+                                               $last_n = intval($range_m[2]);
+                                       }
+                               }
                        case 3:
-                               $field = ($args[2] != '') ? $args[2] : $field;
+                               $order = $args[2];
                        case 2:
+                               $args[1] = get_fullname($args[1],$page);
                                $page = is_pagename($args[1]) ? $args[1] : $page;
                        case 1:
                                $config = ($args[0] != '') ? $args[0] : $config;
+                               list($config,$list) = array_pad(explode('/',$config,2),2,$list);
                }
        }
-       return plugin_tracker_getlist($page,$config,$field,$order,$limit);
+       if (!is_page_readable($page)) {
+               $body = str_replace('$1', htmlsc($page), $_title_cannotread);
+               return $body;
+       }
+       return plugin_tracker_getlist($page,$refer,$config,$list,$order,$limit,$start_n,$last_n);
 }
 function plugin_tracker_list_action()
 {
-       global $script,$vars,$_tracker_messages;
-       
-       $page = $vars['refer'];
+       global $vars, $_tracker_messages, $_title_cannotread;
+
+       $page = $refer = $vars['refer'];
        $s_page = make_pagelink($page);
        $config = $vars['config'];
-       $field = array_key_exists('field',$vars) ? $vars['field'] : '_page';
-       $order = (array_key_exists('order',$vars) and is_numeric($vars['order'])) ?
-               $vars['order'] : -1;
-               
+       $list = array_key_exists('list',$vars) ? $vars['list'] : 'list';
+       $order = array_key_exists('order',$vars) ? $vars['order'] : '_real:SORT_DESC';
+
+       if (!is_page_readable($page)) {
+               $body = str_replace('$1', htmlsc($page), $_title_cannotread);
+               return array(
+                       'msg' => $body,
+                       'body' => $body
+               );
+       }
        return array(
                'msg' => $_tracker_messages['msg_list'],
                'body'=> str_replace('$1',$s_page,$_tracker_messages['msg_back']).
-                       plugin_tracker_getlist($page,$config,$field,$order)
+                       plugin_tracker_getlist($page,$refer,$config,$list,$order)
        );
 }
-function plugin_tracker_getlist($page,$config_name,$field=NULL,$order=1,$limit=NULL)
+function plugin_tracker_getlist($page,$refer,$config_name,$list,$order='',$limit=NULL,$start_n=NULL,$last_n=NULL)
 {
+       global $whatsdeleted;
        $config = new Config('plugin/tracker/'.$config_name);
-       
        if (!$config->read())
        {
-               return "<p>config file '".htmlspecialchars($config_name)."' is not exist.";
+               return "<p>config file '".htmlsc($config_name)."' is not exist.</p>";
        }
        $config->config_name = $config_name;
-       $list = &new Tracker_list($page,$config);
-       $list->sort($field,$order);
-       return $list->toString($limit);
+
+       if (!is_page($config->page.'/'.$list))
+       {
+               return "<p>config file '".make_pagelink($config->page.'/'.$list)."' not found.</p>";
+       }
+       $cache_enabled = defined('TRACKER_LIST_USE_CACHE') && TRACKER_LIST_USE_CACHE &&
+               defined('JSON_UNESCAPED_UNICODE') && defined('PKWK_UTF8_ENABLE');
+       if (is_null($limit) && is_null($start_n)) {
+               $cache_filepath = CACHE_DIR . encode($page) . '.tracker';
+       } else if (pkwk_ctype_digit($limit) && 0 < $limit && $limit <= 1000) {
+               $cache_filepath = CACHE_DIR . encode($page) . '.' . $limit . '.tracker';
+       } else if (!is_null($start_n) && !is_null($last_n)) {
+               $cache_filepath = CACHE_DIR . encode($page) . '.' . $start_n . '-' . $last_n . '.tracker';
+       } else {
+               $cache_enabled = false;
+       }
+       $cachedata = null;
+       $cache_format_version = 1;
+       if ($cache_enabled) {
+               $config_filetime = get_filetime($config->page);
+               $config_list_filetime = get_filetime($config->page.'/'. $list);
+               if (file_exists($cache_filepath)) {
+                       $json_cached = pkwk_file_get_contents($cache_filepath);
+                       if ($json_cached) {
+                               $wrapdata = json_decode($json_cached, true);
+                               if (is_array($wrapdata) && isset($wrapdata['version'],
+                                       $wrapdata['html'], $wrapdata['refreshed_at'])) {
+                                       $cache_time_prev = $wrapdata['refreshed_at'];
+                                       if ($cache_format_version === $wrapdata['version']) {
+                                               if ($config_filetime === $wrapdata['config_updated_at'] &&
+                                                       $config_list_filetime === $wrapdata['config_list_updated_at']) {
+                                                       $cachedata = $wrapdata;
+                                               } else {
+                                                       // (Ignore) delete file
+                                                       unlink($cache_filepath);
+                                               }
+                                       }
+                               }
+                       }
+               }
+       }
+       // Check recent.dat timestamp
+       $recent_dat_filemtime = filemtime(CACHE_DIR . PKWK_MAXSHOW_CACHE);
+       // Check RecentDeleted timestamp
+       $recent_deleted_filetime = get_filetime($whatsdeleted);
+       if (is_null($cachedata)) {
+               $cachedata = array();
+       } else {
+               if ($recent_dat_filemtile !== false) {
+                       if ($recent_dat_filemtime === $cachedata['recent_dat_filemtime'] &&
+                               $recent_deleted_filetime === $cachedata['recent_deleted_filetime'] &&
+                               $order === $cachedata['order']) {
+                               // recent.dat is unchanged
+                               // RecentDeleted is unchanged
+                               // order is unchanged
+                               return $cachedata['html'];
+                       }
+               }
+       }
+       $cache_holder = $cachedata;
+       $tracker_list = new Tracker_list($page,$refer,$config,$list,$cache_holder);
+       if ($order === $cache_holder['order'] &&
+               empty($tracker_list->newly_deleted_pages) &&
+               empty($tracker_list->newly_updated_pages) &&
+               !$tracker_list->link_update_required &&
+               is_null($start_n) && is_null($last_n)) {
+               $result = $cache_holder['html'];
+       } else {
+               $tracker_list->sort($order);
+               $result = $tracker_list->toString($limit,$start_n,$last_n);
+       }
+       if ($cache_enabled) {
+               $refreshed_at = time();
+               $json = array(
+                       'refreshed_at' => $refreshed_at,
+                       'rows' => $tracker_list->rows,
+                       'html' => $result,
+                       'order' => $order,
+                       'config_updated_at' => $config_filetime,
+                       'config_list_updated_at' => $config_list_filetime,
+                       'recent_dat_filemtime' => $recent_dat_filemtime,
+                       'recent_deleted_filetime' => $recent_deleted_filetime,
+                       'link_pages' => $tracker_list->link_pages,
+                       'version' => $cache_format_version);
+               $cache_body = json_encode($json, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+               file_put_contents($cache_filepath, $cache_body, LOCK_EX);
+       }
+       return $result;
 }
 
-// °ìÍ÷¥¯¥é¥¹
+// ä¸\80覧ã\82¯ã\83©ã\82¹
 class Tracker_list
 {
        var $page;
        var $config;
+       var $list;
        var $fields;
        var $pattern;
        var $pattern_fields;
        var $rows;
-       var $sort_field = '_page';
-       var $sort_order = -1;
-       var $sort_obj = NULL;
-       
-       function Tracker_list($page,&$config)
+       var $order;
+       var $sort_keys;
+       var $newly_deleted_pages = array();
+       var $newly_updated_pages = array();
+
+       function Tracker_list($page,$refer,&$config,$list,&$cache_holder)
+       {
+               $this->__construct($page, $refer, $config, $list, $cache_holder);
+       }
+       function __construct($page,$refer,&$config,$list,&$cache_holder)
        {
+               global $whatsdeleted, $_cached_page_filetime;
                $this->page = $page;
                $this->config = &$config;
-               $this->fields = plugin_tracker_get_fields($page,$config);
-               
+               $this->list = $list;
+               $this->fields = plugin_tracker_get_fields($page,$refer,$config);
+
                $pattern = join('',plugin_tracker_get_source($config->page.'/page'));
-               // ¥Ö¥í¥Ã¥¯¥×¥é¥°¥¤¥ó¤ò¥Õ¥£¡¼¥ë¥É¤ËÃÖ´¹
-               // #comment¤Ê¤É¤ÇÁ°¸å¤Ëʸ»úÎó¤ÎÁý¸º¤¬¤¢¤Ã¤¿¾ì¹ç¤Ë¡¢[_block_xxx]¤ËµÛ¤¤¹þ¤Þ¤»¤ë¤è¤¦¤Ë¤¹¤ë
+               // ブロックプラグインをフィールドに置換
+               // #commentなどで前後に文字列の増減があった場合に、[_block_xxx]に吸い込ませるようにする
                $pattern = preg_replace('/^\#([^\(\s]+)(?:\((.*)\))?\s*$/m','[_block_$1]',$pattern);
-               
-               // ¥Ñ¥¿¡¼¥ó¤òÀ¸À®
+
+               // パターンを生成
                $this->pattern = '';
                $this->pattern_fields = array();
                $pattern = preg_split('/\\\\\[(\w+)\\\\\]/',preg_quote($pattern,'/'),-1,PREG_SPLIT_DELIM_CAPTURE);
@@ -531,80 +807,311 @@ class Tracker_list
                        {
                                $field = array_shift($pattern);
                                $this->pattern_fields[] = $field;
-                               $this->pattern .= '(.*)';
+                               $this->pattern .= '(.*?)';
                        }
                }
-               // ¥Ú¡¼¥¸¤ÎÎóµó¤È¼è¤ê¹þ¤ß
-               $this->rows = array();
-               $pattern = "$page/";
-               $pattern_len = strlen($pattern);
-               foreach (get_existpages() as $_page)
-               {
-                       if (strpos($_page,$pattern) === 0)
-                               //and is_numeric($num = substr($_page,$pattern_len)))
+               if (empty($cache_holder)) {
+                       // List pages and get contents (non-cache behavior)
+                       $this->rows = array();
+                       $pattern = "$page/";
+                       $pattern_len = strlen($pattern);
+                       foreach (get_existpages() as $_page)
                        {
-                               $name = substr($_page,$pattern_len);
-                               $this->add($_page,$name);
+                               if (substr($_page, 0, $pattern_len) === $pattern)
+                               {
+                                       $name = substr($_page,$pattern_len);
+                                       if (preg_match(TRACKER_LIST_EXCLUDE_PATTERN,$name))
+                                       {
+                                               continue;
+                                       }
+                                       $this->add($_page,$name);
+                               }
+                       }
+                       $this->link_pages = $this->get_filetimes($this->get_all_links());
+               } else {
+                       // Cache-available behavior
+                       // Check RecentDeleted timestamp
+                       $cached_rows = $this->decode_cached_rows($cache_holder['rows']);
+                       $updated_linked_pages = array();
+                       $newly_deleted_pages = array();
+                       $pattern = "$page/";
+                       $pattern_len = strlen($pattern);
+                       $recent_deleted_filetime = get_filetime($whatsdeleted);
+                       $deleted_page_list = array();
+                       if ($recent_deleted_filetime !== $cache_holder['recent_deleted_filetime']) {
+                               foreach (plugin_tracker_get_source($whatsdeleted) as $line) {
+                                       $m = null;
+                                       if (preg_match('#\[\[([^\]]+)\]\]#', $line, $m)) {
+                                               $_page = $m[1];
+                                               if (is_pagename($_page)) {
+                                                       $deleted_page_list[] = $m[1];
+                                               }
+                                       }
+                               }
+                               foreach ($deleted_page_list as $_page) {
+                                       if (substr($_page, 0, $pattern_len) === $pattern) {
+                                               $name = substr($_page, $pattern_len);
+                                               if (!is_page($_page) && isset($cached_rows[$name]) &&
+                                                       !preg_match(TRACKER_LIST_EXCLUDE_PATTERN, $name)) {
+                                                       // This page was just deleted
+                                                       array_push($newly_deleted_pages, $_page);
+                                                       unset($cached_rows[$name]);
+                                               }
+                                       }
+                               }
+                       }
+                       $this->newly_deleted_pages = $newly_deleted_pages;
+                       $updated_pages = array();
+                       $this->rows = $cached_rows;
+                       // Check recent.dat timestamp
+                       $recent_dat_filemtime = filemtime(CACHE_DIR . PKWK_MAXSHOW_CACHE);
+                       $updated_page_list = array();
+                       if ($recent_dat_filemtime !== $cache_holder['recent_dat_filemtime']) {
+                               // recent.dat was updated. Search which page was updated.
+                               $target_pages = array();
+                               // Active page file time (1 hour before timestamp of recent.dat)
+                               $target_filetime = $cache_holder['recent_dat_filemtime'] - LOCALZONE - 60 * 60;
+                               foreach (get_recent_files() as $_page=>$time) {
+                                       if ($time <= $target_filetime) {
+                                               // Older updated pages
+                                               break;
+                                       }
+                                       $updated_page_list[$_page] = $time;
+                                       $name = substr($_page, $pattern_len);
+                                       if (substr($_page, 0, $pattern_len) === $pattern) {
+                                               $name = substr($_page, $pattern_len);
+                                               if (preg_match(TRACKER_LIST_EXCLUDE_PATTERN, $name)) {
+                                                       continue;
+                                               }
+                                               // Tracker target page
+                                               if (isset($this->rows[$name])) {
+                                                       // Existing page
+                                                       $row = $this->rows[$name];
+                                                       if ($row['_update'] === get_filetime($_page)) {
+                                                               // Same as cache
+                                                               continue;
+                                                       } else {
+                                                               // Found updated page
+                                                               $updated_pages[] = $_page;
+                                                               unset($this->rows[$name]);
+                                                               $this->add($_page, $name);
+                                                       }
+                                               } else {
+                                                       // Add new page
+                                                       $updated_pages[] = $_page;
+                                                       $this->add($_page, $name);
+                                               }
+                                       }
+                               }
                        }
+                       $this->newly_updated_pages = $updated_pages;
+                       $new_link_names = $this->get_all_links();
+                       $old_link_map = array();
+                       foreach ($cache_holder['link_pages'] as $link_page) {
+                               $old_link_map[$link_page['page']] = $link_page['filetime'];
+                       }
+                       $new_link_map = $old_link_map;
+                       $link_update_required = false;
+                       foreach ($deleted_page_list as $_page) {
+                               if (in_array($_page, $new_link_names)) {
+                                       if (isset($old_link_map[$_page])) {
+                                               // This link keeps existing
+                                               if (!is_page($_page)) {
+                                                       // OK. Confirmed the page doesn't exist
+                                                       if ($old_link_map[$_page] === 0) {
+                                                               // Do nothing (From no-page to no-page)
+                                                       } else {
+                                                               // This page was just deleted
+                                                               $new_link_map[$_page] = get_filetime($_page);
+                                                               $link_update_required = true;
+                                                       }
+                                               }
+                                       } else {
+                                               // This link was just added
+                                               $new_link_map[$_page] = get_filetime($_page);
+                                               $link_update_required = true;
+                                       }
+                               }
+                       }
+                       foreach ($updated_page_list as $_page=>$time) {
+                               if (in_array($_page, $new_link_names)) {
+                                       if (isset($old_link_map[$_page])) {
+                                               // This link keeps existing
+                                               if (is_page($_page)) {
+                                                       // OK. Confirmed the page now exists
+                                                       if ($old_link_map[$_page] === 0) {
+                                                               // This page was just added
+                                                               $new_link_map[$_page] = get_filetime($_page);
+                                                               $link_update_required = true;
+                                                       } else {
+                                                               // Do nothing (existing-page to existing-page)
+                                                       }
+                                               }
+                                       } else {
+                                               // This link was just added
+                                               $new_link_map[$_page] = get_filetime($_page);
+                                               $link_update_required = true;
+                                       }
+                               }
+                       }
+                       $new_link_pages = array();
+                       foreach ($new_link_map as $_page => $time) {
+                               $new_link_pages[] = array(
+                                       'page' => $_page,
+                                       'filetime' => $time,
+                               );
+                       }
+                       $this->link_pages = $new_link_pages;
+                       $this->link_update_required = $link_update_required;
+                       $time_map_for_cache = $new_link_map;
+                       foreach ($this->rows as $row) {
+                               $time_map_for_cache[$this->page . '/' . $row['_real']] = $row['_update'];
+                       }
+                       $_cached_page_filetime = $time_map_for_cache;
+               }
+       }
+       function decode_cached_rows($decoded_rows)
+       {
+               $ar = array();
+               foreach ($decoded_rows as $row) {
+                       $ar[$row['_real']] = $row;
+               }
+               return $ar;
+       }
+       function get_all_links() {
+               $ar = array();
+               foreach ($this->rows as $row) {
+                       foreach ($row['_links'] as $link) {
+                               $ar[$link] = 0;
+                       }
+               }
+               return array_keys($ar);
+       }
+       function get_filetimes($pages) {
+               $filetimes = array();
+               foreach ($pages as $page) {
+                       $filetimes[] = array(
+                               'page' => $page,
+                               'filetime' => get_filetime($page),
+                       );
                }
+               return $filetimes;
        }
        function add($page,$name)
        {
-               global $WikiName,$BracketName;
-               
-               // Ìµ¸Â¥ë¡¼¥×ËÉ»ß
+               static $moved = array();
+
+               // 無限ループ防止
                if (array_key_exists($name,$this->rows))
                {
                        return;
                }
-               
+
                $source = plugin_tracker_get_source($page);
-               if (preg_match("/move\s*to\s*($WikiName|\[\[$BracketName\]\])/",$source[0],$matches))
+               if (preg_match('/move\sto\s(.+)/',$source[0],$matches))
                {
-                       return $this->add(strip_bracket($matches[1]),$name);
+                       $page = strip_bracket(trim($matches[1]));
+                       if (array_key_exists($page,$moved) or !is_page($page))
+                       {
+                               return;
+                       }
+                       $moved[$page] = TRUE;
+                       return $this->add($page,$name);
                }
                $source = join('',preg_replace('/^(\*{1,3}.*)\[#[A-Za-z][\w-]+\](.*)$/','$1$2',$source));
-               
-               // ¥Ç¥Õ¥©¥ë¥ÈÃÍ
-               $this->rows[$name] = array(
+
+               // Default value
+               $page_filetime = get_filetime($page);
+               $row = array(
                        '_page'  => "[[$page]]",
                        '_refer' => $this->page,
                        '_real'  => $name,
-                       '_update'=> format_date(get_filetime($page)),
-                       '_past'  => get_passage(get_filetime($page),FALSE)
+                       '_update'=> $page_filetime,
+                       '_past'  => $page_filetime,
                );
-               if (preg_match("/{$this->pattern}/s",$source,$matches))
+               $links = array();
+               if ($row['_match'] = preg_match("/{$this->pattern}/s",$source,$matches))
                {
                        array_shift($matches);
                        foreach ($this->pattern_fields as $key=>$field)
                        {
-                               $this->rows[$name][$field] = trim($matches[$key]);
+                               $row[$field] = trim($matches[$key]);
+                               if ($field === '_refer') {
+                                       continue;
+                               }
+                               $lmatch = null;
+                               if (preg_match('/\[\[([^\]\]]+)\]/', $row[$field], $lmatch)) {
+                                       $link = $lmatch[1];
+                                       if (is_pagename($link) && $link !== $this->page && $link !== $page) {
+                                               if (!in_array($link, $links)) {
+                                                       $links[] = $link;
+                                               }
+                                       }
+                               }
                        }
                }
+               $row['_links'] = $links;
+               $this->rows[$name] = $row;
        }
-       function sort($field=NULL,$order=1)
+       function compare($a, $b)
        {
-               $this->sort_order = $order;
-               if ($field == '_page')
+               foreach ($this->sort_keys as $sort_key)
                {
-                       ($order == -1) ? krsort($this->rows) : ksort($this->rows);
-                       return;
+                       $field = $sort_key['field'];
+                       $dir = $sort_key['dir'];
+                       $f = $this->fields[$field];
+                       $sort_type = $f->sort_type;
+                       $aVal = isset($a[$field]) ? $f->get_value($a[$field]) : '';
+                       $bVal = isset($b[$field]) ? $f->get_value($b[$field]) : '';
+                       $c = strnatcmp($aVal, $bVal) * ($dir === SORT_ASC ? 1 : -1);
+                       if ($c === 0) continue;
+                       return $c;
                }
-               $fields = array_flip(array_keys($this->fields));
-               
-               if (!array_key_exists($field,$fields))
+               return 0;
+       }
+       function sort($order)
+       {
+               if ($order == '')
                {
                        return;
                }
-               $this->sort_field = $field;
-               $this->sort_obj = &$this->fields[$field];
-               usort($this->rows,array(&$this,'compare'));
-       }
-       function compare($arr1,$arr2)
-       {
-               return $this->sort_order * $this->sort_obj->compare(
-                       $arr1[$this->sort_field],$arr2[$this->sort_field]
-               );
+               $names = array_flip(array_keys($this->fields));
+               $this->order = array();
+               foreach (explode(';',$order) as $item)
+               {
+                       list($key,$dir) = array_pad(explode(':',$item),1,'ASC');
+                       if (!array_key_exists($key,$names))
+                       {
+                               continue;
+                       }
+                       switch (strtoupper($dir))
+                       {
+                               case 'SORT_ASC':
+                               case 'ASC':
+                               case SORT_ASC:
+                                       $dir = SORT_ASC;
+                                       break;
+                               case 'SORT_DESC':
+                               case 'DESC':
+                               case SORT_DESC:
+                                       $dir = SORT_DESC;
+                                       break;
+                               default:
+                                       continue;
+                       }
+                       $this->order[$key] = $dir;
+               }
+               $sort_keys = array();
+               foreach ($this->order as $field=>$order)
+               {
+                       if (!array_key_exists($field,$names))
+                       {
+                               continue;
+                       }
+                       $sort_keys[] = array('field' => $field, 'dir' => $order);
+               }
+               $this->sort_keys = $sort_keys;
+               usort($this->rows, array($this, 'compare'));
        }
        function replace_item($arr)
        {
@@ -624,7 +1131,7 @@ class Tracker_list
                }
                else
                {
-                       return $arr[0];
+                       return $this->pipe ? str_replace('|','&#x7c;',$arr[0]) : $arr[0];
                }
                $style = count($params) ? $params[0] : $name;
                if (array_key_exists($style,$this->items)
@@ -632,75 +1139,118 @@ class Tracker_list
                {
                        $str = sprintf($this->fields[$style]->get_style($this->items[$style]),$str);
                }
-               return $str;
+               return $this->pipe ? str_replace('|','&#x7c;',$str) : $str;
        }
        function replace_title($arr)
        {
-               global $script;
-               
-               if (!array_key_exists($arr[1],$this->fields))
+               $field = $sort = $arr[1];
+               if ($sort == '_name' or $sort == '_page')
+               {
+                       $sort = '_real';
+               }
+               if (!array_key_exists($field,$this->fields))
                {
                        return $arr[0];
                }
-               
-               $order = 1;
+               $dir = SORT_ASC;
                $arrow = '';
-               if ($arr[1] == $this->sort_field)
+               $order = $this->order;
+
+               if (is_array($order) && isset($order[$sort]))
                {
-                       $order = -$this->sort_order;
-                       $arrow = ($order == -1) ? '&darr;':'&uarr;';
+                       // BugTrack2/106: Only variables can be passed by reference from PHP 5.0.5
+                       $order_keys = array_keys($order); // with array_shift();
+
+                       $index = array_flip($order_keys);
+                       $pos = 1 + $index[$sort];
+                       $b_end = ($sort == array_shift($order_keys));
+                       $b_order = ($order[$sort] == SORT_ASC);
+                       $dir = ($b_end xor $b_order) ? SORT_ASC : SORT_DESC;
+                       $arrow = '&br;'.($b_order ? '&uarr;' : '&darr;')."($pos)";
+
+                       unset($order[$sort], $order_keys);
                }
-               
-               $title = $this->fields[$arr[1]]->title;
+               $title = $this->fields[$field]->title;
                $r_page = rawurlencode($this->page);
                $r_config = rawurlencode($this->config->config_name);
-               $r_field = rawurlencode($arr[1]);
-               
-               return "[[$title$arrow>$script?plugin=tracker_list&refer=$r_page&config=$r_config&field=$r_field&order=$order]]";
+               $r_list = rawurlencode($this->list);
+               $_order = array("$sort:$dir");
+               if (is_array($order))
+                       foreach ($order as $key=>$value)
+                               $_order[] = "$key:$value";
+               $r_order = rawurlencode(join(';',$_order));
+
+               $script = get_base_uri(PKWK_URI_ABSOLUTE);
+               return "[[$title$arrow>$script?plugin=tracker_list&refer=$r_page&config=$r_config&list=$r_list&order=$r_order]]";
        }
-       function toString($limit=NULL)
+       function toString($limit=NULL,$start_n=NULL,$last_n=NULL)
        {
                global $_tracker_messages;
-               
-               $list = $body = '';
+
+               $source = '';
+               $body = array();
+
                if ($limit !== NULL and count($this->rows) > $limit)
                {
-                       $list .= str_replace(
+                       $source = str_replace(
                                array('$1','$2'),
                                array(count($this->rows),$limit),
                                $_tracker_messages['msg_limit'])."\n";
                        $this->rows = array_splice($this->rows,0,$limit);
+               } else if (!is_null($start_n) && !is_null($last_n)) {
+                       // sublist (range "start-last")
+                       $sublist = array();
+                       foreach ($this->rows as $row) {
+                               if ($start_n <= $row['_real'] && $row['_real'] <= $last_n) {
+                                       $sublist[] = $row;
+                               }
+                       }
+                       $this->rows = $sublist;
                }
                if (count($this->rows) == 0)
                {
                        return '';
                }
-               foreach (plugin_tracker_get_source($this->config->page.'/list') as $line)
+               foreach (plugin_tracker_get_source($this->config->page.'/'.$this->list) as $line)
                {
                        if (preg_match('/^\|(.+)\|[hHfFcC]$/',$line))
                        {
-                               $list .= $line;
+                               $source .= preg_replace_callback('/\[([^\[\]]+)\]/',array(&$this,'replace_title'),$line);
                        }
                        else
                        {
-                               $body .= $line;
+                               $body[] = $line;
                        }
                }
-               $list = preg_replace_callback('/\[([^\[\]]+)\]/',array(&$this,'replace_title'),$list);
                foreach ($this->rows as $key=>$row)
                {
+                       if (!TRACKER_LIST_SHOW_ERROR_PAGE and !$row['_match'])
+                       {
+                               continue;
+                       }
                        $this->items = $row;
-                       $list .= preg_replace_callback('/\[([^\[\]]+)\]/',array(&$this,'replace_item'),$body);
+                       foreach ($body as $line)
+                       {
+                               if (trim($line) == '')
+                               {
+                                       // Ignore empty line
+                                       continue;
+                               }
+                               $this->pipe = ($line[0] == '|' or $line[0] == ':');
+                               $source .= preg_replace_callback('/\[([^\[\]]+)\]/',array(&$this,'replace_item'),$line);
+                       }
                }
-               return convert_html($list);
+               return convert_html($source);
        }
 }
 function plugin_tracker_get_source($page)
 {
        $source = get_source($page);
-       // ¸«½Ð¤·¤Î¸ÇÍ­IDÉô¤òºï½ü
-       $source = preg_replace('/^(\*{1,3}.*)\[#[A-Za-z][\w-]+\](.*)$/m','$1$2',$source);
-       // #freeze¤òºï½ü
-       return preg_replace('/^#freeze\s*$/m','',$source);
+       // Delete anchor part of Headings (Example: "*Heading1 [#id] AAA" to "*Heading1 AAA")
+       $s2 = preg_replace('/^(\*{1,3}.*)\[#[A-Za-z][\w-]+\](.*)$/m','$1$2',$source);
+       // Delete #freeze
+       $s3 = preg_replace('/^#freeze\s*$/im', '', $s2);
+       // Delete #author line
+       $s4 = preg_replace('/^#author\b[^\r\n]*$/im', '', $s3);
+       return $s4;
 }
-?>