PHP ParseArgs函数代码示例

function FmtPageList($fmt, $pagename, $opt)
{
    global $GroupPattern, $FmtV, $FPLFunctions;
    # if (isset($_REQUEST['q']) && $_REQUEST['q']=='') $_REQUEST['q']="''";
    $rq = htmlspecialchars(stripmagic(@$_REQUEST['q']), ENT_NOQUOTES);
    $FmtV['$Needle'] = $opt['o'] . ' ' . $rq;
    if (preg_match("!^({$GroupPattern}(\\|{$GroupPattern})*)?/!i", $rq, $match)) {
        $opt['group'] = @$match[1];
        $rq = substr($rq, strlen(@$match[1]) + 1);
    }
    $opt = array_merge($opt, ParseArgs($opt['o'] . ' ' . $rq), @$_REQUEST);
    if (@($opt['req'] && !$opt['-'] && !$opt[''] && !$opt['+'] && !$opt['q'])) {
        return;
    }
    $GLOBALS['SearchIncl'] = array_merge((array) @$opt[''], (array) @$opt['+']);
    $GLOBALS['SearchExcl'] = (array) @$opt['-'];
    $GLOBALS['SearchGroup'] = @$opt['group'];
    $matches = array();
    $fmtfn = @$FPLFunctions[$opt['fmt']];
    if (!function_exists($fmtfn)) {
        $fmtfn = 'FPLByGroup';
    }
    $out = $fmtfn($pagename, $matches, $opt);
    $FmtV['$MatchCount'] = count($matches);
    if ($fmt != '$MatchList') {
        $FmtV['$MatchList'] = $out;
        $out = FmtPageName($fmt, $pagename);
    }
    if ($out[0] == '<') {
        return '<div>' . Keep($out) . '</div>';
    }
    PRR();
    return $out;
}

function InputMarkup($pagename, $type, $args)
{
    global $InputTags, $InputAttrs, $InputValues, $FmtV;
    if (!@$InputTags[$type]) {
        return "(:input {$type} {$args}:)";
    }
    $opt = array_merge($InputTags[$type], ParseArgs($args));
    $args = @$opt[':args'];
    if (!$args) {
        $args = array('name', 'value');
    }
    while (count(@$opt['']) > 0 && count($args) > 0) {
        $opt[array_shift($args)] = array_shift($opt['']);
    }
    foreach ((array) @$opt[''] as $a) {
        if (!isset($opt[$a])) {
            $opt[$a] = $a;
        }
    }
    if (!isset($opt['value']) && isset($InputValues[@$opt['name']])) {
        $opt['value'] = $InputValues[$opt['name']];
    }
    $attr = array();
    foreach ($InputAttrs as $a) {
        if (!isset($opt[$a])) {
            continue;
        }
        $attr[] = "{$a}='" . str_replace("'", ''', $opt[$a]) . "'";
    }
    $FmtV['$InputFormArgs'] = implode(' ', $attr);
    $out = FmtPageName($opt[':html'], $pagename);
    return preg_replace('/<(\\w+\\s)(.*)$/es', "'<\$1'.Keep(PSS('\$2'))", $out);
}

function NewPageBox($pagename, $opt)
{
    global $ScriptUrl;
    $defaults = array('base' => $pagename, 'template' => '', 'button' => 'left', 'value' => '', 'label' => FmtPageName(' $[Create a new page called:] ', $pagename));
    $opt = array_merge($defaults, ParseArgs($opt));
    $buttonHTML = "<input class='inputbutton newpagebutton' type='submit' value='{$opt['label']}' />";
    return "<form class='newpage' action='{$ScriptUrl}' method='post'>\r\n     <input type='hidden' name='n' value='{$pagename}' />\r\n     <input type='hidden' name='action' value='new' />\r\n     <input type='hidden' name='base' value='{$opt['base']}' />\r\n     <input type='hidden' name='template' value='{$opt['template']}' />" . ($opt['button'] == "left" ? $buttonHTML : "") . "<input class='inputbox newpagetext' type='text' name='name' size='16' value=' {$opt['value']} '\r\n     onfocus=\"if(this.value='{$opt['value']}') {this.value=''}\"\r\n     onblur=\"if(this.value=='') {this.value='{$opt['value']}'}\" />" . ($opt['button'] == "right" ? $buttonHTML : "") . "</form>";
}

function BDropdownMenu($inp)
{
    $defaults = array('title' => 'Dropdown');
    $args = array_merge($defaults, ParseArgs($inp));
    $inline_code_begin = "<li class='dropdown'><a href='#' class='dropdown-toggle' data-toggle='dropdown'>" . $args['title'] . "<b class='caret'></b></a><ul class='dropdown-menu'>";
    $inline_code_end = "</ul></li>";
    // if we're using MakePageList, we have to pass ALL the opts along...
    // in this case, named $args
    $group_list = BGetWikiPages($args);
    $formatted_list = BBuildGroupList($group_list);
    return Keep($inline_code_begin . $formatted_list . $inline_code_end);
}

function openlayers($args)
{
    global $HTMLHeaderFmt, $HTMLFooterFmt;
    $params = ParseArgs($args);
    $slippymap_default = array('width' => 500, 'height' => 400, 'lat' => '49.4312', 'lon' => '-2.364', 'zoom' => 14);
    $width = $params['width'] ? $params['width'] : $slippymap_default['width'];
    $height = $params['height'] ? $params['height'] : $slippymap_default['height'];
    $lat = $params['lat'] ? $params['lat'] : $slippymap_default['lat'];
    $lon = $params['lon'] ? $params['lon'] : $slippymap_default['lon'];
    $zoom = $params['zoom'] ? $params['zoom'] : $slippymap_default['zoom'];
    $HTMLHeaderFmt['slippymap'] = "\r\n" . '<script src="http://localhost/pmwiki-2.2.0-beta65/pub/js/OpenLayers/OpenLayers.js"></script>' . "\r\n" . '<script src="http://www.openstreetmap.org/openlayers/OpenStreetMap.js"></script>' . "\r\n" . '<script type="text/javascript">' . "\r\n" . '     var lat = ' . $lat . ";\r\n" . '     var lon = ' . $lon . ";\r\n" . '     var zoom = ' . $zoom . ";\r\n" . '     var map; //complex object of type OpenLayers.Map' . "\r\n" . '     //"map" Objekt initialisieren' . "\r\n" . '     function slippymap_init() {' . "\r\n" . '         map = new OpenLayers.Map ("map", {' . "\r\n" . '             controls:[' . "\r\n" . '                 new OpenLayers.Control.Navigation(),' . "\r\n" . '                 new OpenLayers.Control.PanZoomBar(),' . "\r\n" . '                 new OpenLayers.Control.Attribution()],' . "\r\n" . '             maxExtent: new OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34),' . "\r\n" . '             maxResolution: 156543.0399,' . "\r\n" . '             numZoomLevels: 19,' . "\r\n" . '             units: \'m\',' . "\r\n" . '             projection: new OpenLayers.Projection("EPSG:900913"),' . "\r\n" . '             displayProjection: new OpenLayers.Projection("EPSG:4326")' . "\r\n" . '         } );' . "\r\n" . '         // weitere Basiskarten: OpenLayers.Layer.OSM.Mapnik, OpenLayers.Layer.OSM.Maplint und OpenLayers.Layer.OSM.CycleMap' . "\r\n" . '         layerTilesAtHome = new OpenLayers.Layer.OSM.Osmarender("Osmarender");' . "\r\n" . '         map.addLayer(layerTilesAtHome);' . "\r\n" . '         var lonLat = new OpenLayers.LonLat(lon, lat).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());' . "\r\n" . '         map.setCenter (lonLat, zoom);' . "\r\n" . '     }' . "\r\n" . '</script>' . "\r\n" . "\r\n";
    $HTMLFooterFmt = '<script type="text/javascript">' . "\n\t" . 'slippymap_init();' . "\n" . '</script>';
    return '<div style="width: ' . $width . 'px; height:' . $height . 'px; border-style:solid; border-width:1px; border-color:lightgrey;" id="map">' . "\n\t" . '<noscript>' . "\n\t\t" . 'Die Nutzung der Karte setzt die Aktivierung von JavaScript voraus.' . "\n\t" . '</noscript>' . "\n" . '</div>';
}

function MarkupExpression($pagename, $expr)
{
    global $KeepToken, $KPV, $MarkupExpr;
    $rpat = "/{$KeepToken}(\\d+P){$KeepToken}/e";
    $rrep = '$KPV[\'$1\']';
    $expr = preg_replace('/([\'"])(.*?)\\1/e', "Keep(PSS('\$2'),'P')", $expr);
    $expr = preg_replace('/\\(\\W/e', "Keep(PSS('\$2'),'P')", $expr);
    while (preg_match('/\\((\\w+)(\\s[^()]*)?\\)/', $expr, $match)) {
        list($repl, $func, $params) = $match;
        $code = @$MarkupExpr[$func];
        ##  if not a valid function, save this string as-is and exit
        if (!$code) {
            break;
        }
        ##  if the code uses '$params', we just evaluate directly
        if (strpos($code, '$params') !== false) {
            $out = eval("return ({$code});");
            if ($expr == $repl) {
                $expr = $out;
                break;
            }
            $expr = str_replace($repl, $out, $expr);
            continue;
        }
        ##  otherwise, we parse arguments into $args before evaluating
        $argp = ParseArgs($params);
        $x = $argp['#'];
        $args = array();
        while ($x) {
            list($k, $v) = array_splice($x, 0, 2);
            if ($k == '' || $k == '+' || $k == '-') {
                $args[] = $k . preg_replace($rpat, $rrep, $v);
            }
        }
        ##  fix any quoted arguments
        foreach ($argp as $k => $v) {
            if (!is_array($v)) {
                $argp[$k] = preg_replace($rpat, $rrep, $v);
            }
        }
        $out = eval("return ({$code});");
        if ($expr == $repl) {
            $expr = $out;
            break;
        }
        $expr = str_replace($repl, Keep($out, 'P'), $expr);
    }
    return preg_replace($rpat, $rrep, $expr);
}

function FmtUploadList2($pagename, $args)
{
    global $UploadDir, $UploadPrefixFmt, $UploadUrlFmt, $EnableUploadOverwrite, $FileListTimeFmt, $EnableDirectDownload, $HTMLStylesFmt, $FarmPubDirUrl;
    $HTMLStylesFmt['filelist'] = "\r\n   table.filelist { padding:0; margin:0; border-spacing:0; }\r\n   table.filelist td { padding:3px 0 0 0; margin:0; }\r\n   .filelist a { text-decoration:underline; }\r\n   .dotted  { background:url({$FarmPubDirUrl}/images/dot3.png) repeat-x bottom; }\r\n   .nodots { background:#feffff; }\r\n   ";
    $opt = ParseArgs($args);
    if (@$opt[''][0]) {
        $pagename = MakePageName($pagename, $opt[''][0]);
    }
    if (@$opt['re']) {
        $matchre = '/^(' . $opt['re'] . ')$/i';
    }
    if (@$opt['ext']) {
        $matchext = '/\\.(' . implode('|', preg_split('/\\W+/', $opt['ext'], -1, PREG_SPLIT_NO_EMPTY)) . ')$/i';
    }
    $uploaddir = FmtPageName("{$UploadDir}{$UploadPrefixFmt}", $pagename);
    $uploadurl = FmtPageName(IsEnabled($EnableDirectDownload, 1) ? "{$UploadUrlFmt}{$UploadPrefixFmt}/" : "\$PageUrl?action=download&upname=", $pagename);
    $dirp = @opendir($uploaddir);
    if (!$dirp) {
        return '';
    }
    $filelist = array();
    while (($file = readdir($dirp)) !== false) {
        if ($file[0] == '.') {
            continue;
        }
        if (@$matchext && !preg_match(@$matchext, $file)) {
            continue;
        }
        if (@$matchre && !preg_match(@$matchre, $file)) {
            continue;
        }
        $filelist[$file] = $file;
    }
    closedir($dirp);
    $out = array();
    #asort($filelist);
    $overwrite = '';
    foreach ($filelist as $file => $x) {
        $name = PUE("{$uploadurl}{$file}");
        $stat = stat("{$uploaddir}/{$file}");
        if ($EnableUploadOverwrite) {
            $overwrite = FmtPageName("<a class='createlink'\r\n        href='\$PageUrl?action=upload&amp;upname={$file}'>&nbsp;&Delta;</a>", $pagename);
        }
        $out[] = "<tr><td class='dotted'> <a href='{$name}'>{$file}</a>{$overwrite} &nbsp;&nbsp;</td>" . "<td class='dotted' align=right><span class='nodots'>" . number_format($stat['size'] / 1024) . "Kb</span></td>" . "<td>&nbsp;&nbsp;&nbsp;" . strftime($FileListTimeFmt, $stat['mtime']) . "</td>" . "<tr>";
    }
    return implode("\n", $out);
}

function BootstrapButton($args)
{
    $opt = ParseArgs($args);
    // expect link, class
    // TODO: test for options
    // TODO: handle alt params
    // TODO: handle rel=nofollow per pmwiki settings
    // what about other PmWiki shortcut-type things?
    // like... [[PmWiki/basic editing|+]]%apply=link class="btn"%
    $target = $opt['link'];
    $text = $opt['text'] ? $opt['text'] : $target;
    // if text not provided, default to the link
    $class = $opt['class'];
    $l = '<a href="%s" class="%s">%s</a>';
    $linkf = sprintf($l, $target, $class, $text);
    return $linkf;
}

function HandyTocProcessMarkup($pagename, $argstr)
{
    global $HandyTocEndAt, $HandyTocStartAt, $HandyTocIgnoreSoleH1;
    global $HTMLFooterFmt;
    $args = ParseArgs($argstr);
    $title = $args[''] ? implode(' ', $args['']) : '';
    $start = $args['start'] ? $args['start'] : $HandyTocStartAt;
    $end = $args['end'] ? $args['end'] : $HandyTocEndAt;
    $ignoreh1 = $args['ignoreh1'] ? $args['ignoreh1'] : $HandyTocIgnoreSoleH1;
    $class = $args['class'] ? ' class="' . $args['class'] . '" ' : '';
    $HTMLFooterFmt['handytoc'] = " \n  <script language='javascript' type='text/javascript'\n     src='\$HandyTocPubDirUrl/handytoc.js'></script>\n  <script language='javascript' type='text/javascript'>TOC.set_args({start:{$start}, end:{$end}, ignoreh1:{$ignoreh1}});</script>\n";
    if ($title) {
        return Keep("<div {$class}id='htoc'><h3>{$title}</h3></div>");
    } else {
        return Keep("<div {$class}id='htoc'></div>");
    }
}

function galleria($args = false)
{
    global $galleria, $galleria_unsafe_options, $galleria_safe_mode;
    $args = ParseArgs($args);
    unset($args['#']);
    if ($galleria_safe_mode) {
        #remove unsafe options from markup args -- only allow from config.php
        foreach ($galleria_unsafe_options as $v) {
            unset($args[$v]);
        }
    }
    $o = array_merge($galleria, $args);
    return '
<script type="text/javascript">
$(document).ready(function(){
	$("' . $o['list'] . '").galleria(' . galleria_json_encode($o, false, $galleria_unsafe_options) . ');
});
</script>';
}

function InputMarkup($pagename, $type, $args) {
  global $InputTags, $InputAttrs, $InputValues, $FmtV;
  if (!@$InputTags[$type]) return "(:input $type $args:)";
  $opt = array_merge($InputTags[$type], ParseArgs($args));
  $args = @$opt[':args'];
  if (!$args) $args = array('name', 'value');
  while (count(@$opt['']) > 0 && count($args) > 0) 
    $opt[array_shift($args)] = array_shift($opt['']);
  foreach ((array)@$opt[''] as $a) 
    if (!isset($opt[$a])) $opt[$a] = $a;
  if (!isset($opt['value']) && isset($InputValues[@$opt['name']])) 
    $opt['value'] = $InputValues[$opt['name']];
  $attr = array();
  foreach ($InputAttrs as $a) {
    if (!isset($opt[$a])) continue;
    $attr[] = "$a='".str_replace("'", ''', $opt[$a])."'";
  }
  $FmtV['$InputFormArgs'] = implode(' ', $attr);
  $out = FmtPageName($opt[':html'], $pagename);
  return Keep($out);
}

function MarkupMarkup($pagename, $text, $opt = '')
{
    $MarkupMarkupOpt = array('class' => 'vert');
    $opt = array_merge($MarkupMarkupOpt, ParseArgs($opt));
    $html = MarkupToHTML($pagename, $text, array('escape' => 0));
    if (@$opt['caption']) {
        $caption = str_replace("'", '&#039;', "<caption>{$opt['caption']}</caption>");
    }
    $class = preg_replace('/[^-\\s\\w]+/', ' ', @$opt['class']);
    if (strpos($class, 'horiz') !== false) {
        $sep = '';
        $pretext = wordwrap($text, 40);
    } else {
        $sep = '</tr><tr>';
        $pretext = wordwrap($text, 75);
    }
    return Keep("<table class='markup {$class}' align='center'>{$caption}\n      <tr><td class='markup1' valign='top'><pre>{$pretext}</pre></td>{$sep}<td \n        class='markup2' valign='top'>{$html}</td></tr></table>");
}

function FmtUploadList($pagename, $args)
{
    global $UploadDir, $UploadPrefixFmt, $UploadUrlFmt, $EnableUploadOverwrite, $TimeFmt, $EnableDirectDownload;
    $opt = ParseArgs($args);
    if (@$opt[''][0]) {
        $pagename = MakePageName($pagename, $opt[''][0]);
    }
    if (@$opt['ext']) {
        $matchext = '/\\.(' . implode('|', preg_split('/\\W+/', $opt['ext'], -1, PREG_SPLIT_NO_EMPTY)) . ')$/i';
    }
    $uploaddir = FmtPageName("{$UploadDir}{$UploadPrefixFmt}", $pagename);
    $uploadurl = FmtPageName(IsEnabled($EnableDirectDownload, 1) ? "{$UploadUrlFmt}{$UploadPrefixFmt}/" : "\$PageUrl?action=download&upname=", $pagename);
    $dirp = @opendir($uploaddir);
    if (!$dirp) {
        return '';
    }
    $filelist = array();
    while (($file = readdir($dirp)) !== false) {
        if ($file[0] == '.') {
            continue;
        }
        if (@$matchext && !preg_match(@$matchext, $file)) {
            continue;
        }
        $filelist[$file] = $file;
    }
    closedir($dirp);
    $out = array();
    asort($filelist);
    $overwrite = '';
    foreach ($filelist as $file => $x) {
        $name = PUE("{$uploadurl}{$file}");
        $stat = stat("{$uploaddir}/{$file}");
        if ($EnableUploadOverwrite) {
            $overwrite = FmtPageName("<a class='createlink'\n        href='\$PageUrl?action=upload&amp;upname={$file}'>&nbsp;&Delta;</a>", $pagename);
        }
        $out[] = "<li> <a href='{$name}'>{$file}</a>{$overwrite} ... " . number_format($stat['size']) . " bytes ... " . strftime($TimeFmt, $stat['mtime']) . "</li>";
    }
    return implode("\n", $out);
}

function NotifyUpdate($pagename, $dir = '')
{
    global $NotifyList, $NotifyListPageFmt, $NotifyFile, $IsPagePosted, $FmtV, $NotifyTimeFmt, $NotifyItemFmt, $SearchPatterns, $NotifySquelch, $NotifyDelay, $Now, $NotifySubjectFmt, $NotifyBodyFmt, $NotifyHeaders, $NotifyParameters;
    $abort = ignore_user_abort(true);
    if ($dir) {
        flush();
        chdir($dir);
    }
    $GLOBALS['EnableRedirect'] = 0;
    ##   Read in the current notify configuration
    $pn = FmtPageName($NotifyListPageFmt, $pagename);
    $npage = ReadPage($pn, READPAGE_CURRENT);
    preg_match_all('/^[\\s*:#->]*(notify[:=].*)/m', $npage['text'], $nlist);
    $nlist = array_merge((array) @$NotifyList, (array) @$nlist[1]);
    if (!$nlist) {
        return;
    }
    ##   make sure other processes are locked out
    Lock(2);
    ##   let's load the current .notifylist table
    $nfile = FmtPageName($NotifyFile, $pagename);
    $nfp = @fopen($nfile, 'r');
    if ($nfp) {
        ##   get our current squelch and delay timestamps
        clearstatcache();
        $sz = filesize($nfile);
        list($nextevent, $firstpost) = explode(' ', rtrim(fgets($nfp, $sz)));
        ##   restore our notify array
        $notify = unserialize(fgets($nfp, $sz));
        fclose($nfp);
    }
    if (!is_array($notify)) {
        $notify = array();
    }
    ##   if this is for a newly posted page, get its information
    if ($IsPagePosted) {
        $page = ReadPage($pagename, READPAGE_CURRENT);
        $FmtV['$PostTime'] = strftime($NotifyTimeFmt, $Now);
        $item = urlencode(FmtPageName($NotifyItemFmt, $pagename));
        if ($firstpost < 1) {
            $firstpost = $Now;
        }
    }
    foreach ($nlist as $n) {
        $opt = ParseArgs($n);
        $mailto = preg_split('/[\\s,]+/', $opt['notify']);
        if (!$mailto) {
            continue;
        }
        if ($opt['squelch']) {
            foreach ($mailto as $m) {
                $squelch[$m] = $opt['squelch'];
            }
        }
        if (!$IsPagePosted) {
            continue;
        }
        if ($opt['link']) {
            $link = MakePageName($pagename, $opt['link']);
            if (!preg_match("/(^|,){$link}(,|\$)/i", $page['targets'])) {
                continue;
            }
        }
        $pats = @(array) $SearchPatterns[$opt['list']];
        if ($opt['group']) {
            $pats[] = FixGlob($opt['group'], '$1$2.*');
        }
        if ($opt['name']) {
            $pats[] = FixGlob($opt['name'], '$1*.$2');
        }
        if ($pats && !MatchPageNames($pagename, $pats)) {
            continue;
        }
        if ($opt['trail']) {
            $trail = ReadTrail($pagename, $opt['trail']);
            for ($i = 0; $i < count($trail); $i++) {
                if ($trail[$i]['pagename'] == $pagename) {
                    break;
                }
            }
            if ($i >= count($trail)) {
                continue;
            }
        }
        foreach ($mailto as $m) {
            $notify[$m][] = $item;
        }
    }
    $nnow = time();
    if ($nnow < $firstpost + $NotifyDelay) {
        $nextevent = $firstpost + $NotifyDelay;
    } else {
        $firstpost = 0;
        $nextevent = $nnow + 86400;
        $mailto = array_keys($notify);
        $subject = FmtPageName($NotifySubjectFmt, $pagename);
        $body = FmtPageName($NotifyBodyFmt, $pagename);
        foreach ($mailto as $m) {
            $msquelch = @$notify[$m]['lastmail'] + (@$squelch[$m] ? $squelch[$m] : $NotifySquelch);
            if ($nnow < $msquelch) {
//.........这里部分代码省略.........

function FPLTemplate($pagename, &$matches, $opt)
{
    global $Cursor, $FPLTemplatePageFmt, $RASPageName, $PageListArgPattern;
    SDV($FPLTemplatePageFmt, array('{$FullName}', '{$SiteGroup}.LocalTemplates', '{$SiteGroup}.PageListTemplates'));
    StopWatch("FPLTemplate begin");
    $template = @$opt['template'];
    if (!$template) {
        $template = @$opt['fmt'];
    }
    $ttext = RetrieveAuthSection($pagename, $template, $FPLTemplatePageFmt);
    $ttext = PVSE(Qualify($RASPageName, $ttext));
    ##  save any escapes
    $ttext = MarkupEscape($ttext);
    ##  remove any anchor markups to avoid duplications
    $ttext = preg_replace('/\\[\\[#[A-Za-z][-.:\\w]*\\]\\]/', '', $ttext);
    ##  extract portions of template
    $tparts = preg_split('/\\(:(template)\\s+(\\w+)\\s*(.*?):\\)/i', $ttext, -1, PREG_SPLIT_DELIM_CAPTURE);
    ##  handle (:template defaults:)
    $i = 0;
    while ($i < count($tparts)) {
        if ($tparts[$i] != 'template') {
            $i++;
            continue;
        }
        if ($tparts[$i + 1] != 'defaults' && $tparts[$i + 1] != 'default') {
            $i += 4;
            continue;
        }
        $opt = array_merge(ParseArgs($tparts[$i + 2], $PageListArgPattern), $opt);
        array_splice($tparts, $i, 3);
    }
    SDVA($opt, array('class' => 'fpltemplate', 'wrap' => 'div'));
    ##  get the list of pages
    $matches = array_values(MakePageList($pagename, $opt, 0));
    ##  extract page subset according to 'count=' parameter
    if (@$opt['count']) {
        list($r0, $r1) = CalcRange($opt['count'], count($matches));
        if ($r1 < $r0) {
            $matches = array_reverse(array_slice($matches, $r1 - 1, $r0 - $r1 + 1));
        } else {
            $matches = array_slice($matches, $r0 - 1, $r1 - $r0 + 1);
        }
    }
    $savecursor = $Cursor;
    $pagecount = 0;
    $groupcount = 0;
    $grouppagecount = 0;
    $pseudovars = array('{$$PageCount}' => &$pagecount, '{$$GroupCount}' => &$groupcount, '{$$GroupPageCount}' => &$grouppagecount);
    foreach (preg_grep('/^[\\w$]/', array_keys($opt)) as $k) {
        if (!is_array($opt[$k])) {
            $pseudovars["{\$\${$k}}"] = htmlspecialchars($opt[$k], ENT_NOQUOTES);
        }
    }
    $vk = array_keys($pseudovars);
    $vv = array_values($pseudovars);
    $lgroup = '';
    $out = '';
    foreach ($matches as $i => $pn) {
        $group = PageVar($pn, '$Group');
        if ($group != $lgroup) {
            $groupcount++;
            $grouppagecount = 0;
            $lgroup = $group;
        }
        $grouppagecount++;
        $pagecount++;
        $t = 0;
        while ($t < count($tparts)) {
            if ($tparts[$t] != 'template') {
                $item = $tparts[$t];
                $t++;
            } else {
                list($when, $control, $item) = array_slice($tparts, $t + 1, 3);
                $t += 4;
                if (!$control) {
                    if ($when == 'first' && $i != 0) {
                        continue;
                    }
                    if ($when == 'last' && $i != count($matches) - 1) {
                        continue;
                    }
                } else {
                    if ($when == 'first' || !isset($last[$t])) {
                        $Cursor['<'] = $Cursor['&lt;'] = (string) @$matches[$i - 1];
                        $Cursor['='] = $pn;
                        $Cursor['>'] = $Cursor['&gt;'] = (string) @$matches[$i + 1];
                        $curr = str_replace($vk, $vv, $control);
                        $curr = preg_replace('/\\{(=|&[lg]t;)(\\$:?\\w+)\\}/e', "PageVar(\$pn, '\$2', '\$1')", $curr);
                        if ($when == 'first' && $i > 0 && $last[$t] == $curr) {
                            continue;
                        }
                        $last[$t] = $curr;
                    }
                    if ($when == 'last') {
                        $Cursor['<'] = $Cursor['&lt;'] = $pn;
                        $Cursor['='] = (string) @$matches[$i + 1];
                        $Cursor['>'] = $Cursor['&gt;'] = (string) @$matches[$i + 2];
                        $next = str_replace($vk, $vv, $control);
                        $next = preg_replace('/\\{(=|&[lg]t;)(\\$:?\\w+)\\}/e', "PageVar(\$pn, '\$2', '\$1')", $next);
                        if ($next == $last[$t] && $i != count($matches) - 1) {
//.........这里部分代码省略.........