<?php

class template{
    
    var $tplname;
    var $tpldir;
    var $objdir;
    var $tplfile;
    var $objfile;
    var $vars=array();
    var $force =0;
    var $var_regexp = "\@?\\\$[a-z_][\\\$\w]*(?:\[[\w\-\.\"\‘\[\]\$]+\])*";
    var $vtag_regexp = "\<\?php echo (\@?\\\$[a-zA-Z_][\\\$\w]*(?:\[[\w\-\.\"\‘\[\]\$]+\])*)\?\>";
    var $const_regexp = "\{([\w]+)\}";
    var $lang = array();

    function template($tplname=‘default‘) {
        
        $this->tplname = ($tplname!==‘default‘&&is_dir(HDWIKI_ROOT.‘/view/‘.$tplname))?$tplname:‘default‘;
        $this->tpldir = HDWIKI_ROOT.‘/view/‘.$this->tplname;
        $this->objdir = HDWIKI_ROOT.‘/data/view‘;
    }

    function assign($k, $v) {
        $this->vars[$k] = $v;
    }

    function setlang($langtype=‘zh‘,$filename){
        include HDWIKI_ROOT.‘/lang/‘.$langtype.‘/‘.$filename.‘.php‘;
        $this->lang = &$lang;
    }

 
    
    function display($file){
        GLOBAL $starttime,$mquerynum;
        $mtime = explode(‘ ‘, microtime());
        $this->assign(‘runtime‘, number_format($mtime[1] + $mtime[0] - $starttime,6));
        $this->assign(‘querynum‘,$mquerynum);
        extract($this->vars, EXTR_SKIP);
        include $this->gettpl($file);
    }

    function gettpl($file){
        if(substr($file,0,7)=="file://"){
            $ppos=strrpos($file,"/");
            $dir_name=explode(‘/‘,substr($file,7));
            $this->tplfile = HDWIKI_ROOT."/".substr($file,7).‘.htm‘;
            $this->objfile = $this->objdir.‘/‘.$dir_name[1].‘_‘.substr($file,$ppos+1).‘.tpl.php‘;
        }else{
            if($this->tplname!==‘default‘&&is_file($this->tpldir.‘/‘.$file.‘.htm‘)){
                $this->tplfile = $this->tpldir.‘/‘.$file.‘.htm‘;
                $this->objfile = $this->objdir.‘/‘.$this->tplname."_".$file.‘.tpl.php‘;
            }else{
                $this->tplfile = HDWIKI_ROOT.‘/view/default/‘.$file.‘.htm‘;
                $this->objfile = $this->objdir.‘/‘.$file.‘.tpl.php‘;
            }
        }
        if(!file_exists($this->tplfile)){
            exit;
        }
        if($this->force || @filemtime($this->objfile) < @filemtime($this->tplfile)){
            $this->compile();
        }
        return $this->objfile;
    }

    function  compile() {
        $template = file::readfromfile($this->tplfile);
        $template = preg_replace("/\{block:([^\}]+?)\/\}/ies", "\$this->block(‘\\1‘)", $template);
        
        $template = preg_replace("/\<\!\-\-\{(.+?)\}\-\-\>/s", "{\\1}", $template);
        $template = preg_replace("/\{lang.(\w+?)\}/ise", "\$this->lang(‘\\1‘)", $template);
        if(‘1‘==$this->vars[‘setting‘][‘seo_type‘] && ‘1‘==$this->vars[‘setting‘][‘seo_type_doc‘]){
            $template = preg_replace("/\{url.doc\-view\-(.+?)\[‘did‘\]\}/ise", "\$this->stripvtag(‘{url doc-view-{eval echo rawurlencode(\\1[\‘rawtitle\‘]);}}‘)", $template);
        }
        $template = preg_replace("/\{($this->var_regexp)\}/", "<?php echo \\1?>", $template);
        $template = preg_replace("/\{($this->const_regexp)\}/", "<?php echo \\1?>", $template);
        $template = preg_replace("/(?<!\<\?php echo |\\\\)$this->var_regexp/", "<?php echo \\0?>", $template);
        $template = preg_replace("/\{\{eval (.*?)\}\}/ies", "\$this->stripvtag(‘<?php \\1?>‘)", $template);
        $template = preg_replace("/\{eval (.*?)\}/ies", "\$this->stripvtag(‘<?php \\1?>‘)", $template);
        $template = preg_replace("/\{for (.*?)\}/ies", "\$this->stripvtag(‘<?php for(\\1) {?>‘)", $template);
        $template = preg_replace("/\{elseif\s+(.+?)\}/ies", "\$this->stripvtag(‘<?php } elseif(\\1) { ?>‘)", $template);
        
        $template = preg_replace("/\{hdwiki:([^\}]+?)\/\}/ies", "\$this->hdwiki(‘\\1‘)", $template);
        for($i=0; $i<2; $i++) {
            $template = preg_replace("/\{hdwiki:(.+?)\}(.+?)\{\/hdwiki\}/ies", "\$this->hdwiki(‘\\1‘, ‘\\2‘)", $template);
            $template = preg_replace("/\{loop\s+$this->vtag_regexp\s+$this->vtag_regexp\s+$this->vtag_regexp\}(.+?)\{\/loop\}/ies", "\$this->loopsection(‘\\1‘, ‘\\2‘, ‘\\3‘, ‘\\4‘)", $template);
            $template = preg_replace("/\{loop\s+$this->vtag_regexp\s+$this->vtag_regexp\}(.+?)\{\/loop\}/ies", "\$this->loopsection(‘\\1‘, ‘‘, ‘\\2‘, ‘\\3‘)", $template);
        }
        
        $template = preg_replace("/\{if\s+(.+?)\}/ies", "\$this->stripvtag(‘<?php if(\\1) { ?>‘)", $template);
        $template = preg_replace("/\{template\s+(\w+?)\}/is", "<?php include \$this->gettpl(‘\\1‘);?>", $template);
        $template = preg_replace("/\{template\s+(.+?)\}/ise", "\$this->stripvtag(‘<?php include \$this->gettpl(\\1); ?>‘)", $template);
        $template = preg_replace("/\{else\}/is", "<?php } else { ?>", $template);
        $template = preg_replace("/\{\/if\}/is", "<?php } ?>", $template);
        $template = preg_replace("/\{\/for\}/is", "<?php } ?>", $template);
        $template = preg_replace("/$this->const_regexp/", "<?php echo \\1?>", $template);
        $template = "<?php if(!defined(‘HDWIKI_ROOT‘)) exit(‘Access Denied‘);?>\r\n$template";
        $template = preg_replace("/(\\\$[a-zA-Z_]\w+\[)([a-zA-Z_]\w+)\]/i", "\\1‘\\2‘]", $template);
        $template = preg_replace("/\{url.(.+?)\}/ise", "\$this->url(‘\\1‘)", $template);
        
        $template = preg_replace("/\{datacall:([^\}]+?)\/\}/ies", "\$this->datacall(‘\\1‘)", $template);
        $fp = fopen($this->objfile, ‘w‘);
        fwrite($fp, $template);
        fclose($fp);
    }

    function stripvtag($s) {
        return preg_replace("/$this->vtag_regexp/is", "\\1", str_replace("\\\"", ‘"‘, $s));
    }

    function loopsection($arr, $k, $v, $statement){
        $arr = $this->stripvtag($arr);
        $k = $this->stripvtag($k);
        $v = $this->stripvtag($v);
        $statement = str_replace("\\\"", ‘"‘, $statement);
        return $k ? "<?php foreach((array)$arr as $k=>$v) {?>$statement<?php }?>" : "<?php foreach((array)$arr as $v) {?>$statement<?php } ?>";
    }

    function lang($k){
        return !empty($this->lang[$k]) ? stripslashes($this->lang[$k]) : "{ $k }";
    }
    
    function url($u){
        if(substr($u,0,10)==‘user-login‘||substr($u,0,11)==‘user-logout‘||substr($u,0,13)==‘user-register‘||substr($u,0,9)==‘user-code‘
            || substr($u,0,10)==‘pic-search‘|| substr($u,0,7)==‘search-‘){
            return ‘index.php?‘.$u;
        }elseif(‘1‘==$this->vars[‘setting‘][‘seo_type‘] &&‘1‘==$this->vars[‘setting‘][‘seo_type_doc‘] && ‘doc-view-‘==substr($u,0,9)){
            return "wiki/".substr($u,9);
        }else{
            return $this->vars[‘setting‘][‘seo_prefix‘].$u.$this->vars[‘setting‘][‘seo_suffix‘];
        }
    }
    
    function hdwiki($taglist, $statement=‘‘){
        $tag=preg_split("/\s+/",trim($taglist));//接收到参数按空格分开。
        $taglist = str_replace("‘", "\‘", $taglist);
        if(‘‘!=$statement){
            $statement = str_replace("\\\"", ‘"‘, $statement);
            $statement = preg_replace_callback("/\[field:([^\]]+?)\/\]/is", array($this,‘callback‘), $statement);
            
            return "<?php foreach((array)\$_ENV[‘tag‘]->$tag[0](‘$taglist‘) as \$data) {?>$statement<?php } ?>" ;
        }else{
            return "<?php echo \$_ENV[‘tag‘]->$tag[0](‘$taglist‘);?>" ;
        }
    }
    
    function callback($matches){
        $cmd=trim($matches[1]);
        
        $firstspace=strpos($cmd,‘ ‘);
        if(!$firstspace){
            return ‘<?php echo $data[‘.$cmd.‘]?>‘;
        }else{
            $field=substr($cmd,0,$firstspace);
            $func=substr($cmd,$firstspace);
            return ‘<?php echo ‘.str_replace(‘@me‘,‘$data[‘.$field.‘]‘,$func)." ?>";
        }
    }

    function datacall($datatag){
        $datatag = trim($datatag);
        return  "<?php \$_ENV[‘datacall‘]->call(‘$datatag‘);?>" ;
    }
    
    function block($area){
        $area = trim($area);
        $datastr=‘‘;
        if(!empty($GLOBALS[‘blocklist‘][$area])) {
            foreach((array)$GLOBALS[‘blocklist‘][$area] as $block){
                $datastr.=‘{eval $data= http://www.mamicode.com/$GLOBALS[/‘blockdata/‘][‘.$block[‘id‘].‘];$bid="‘.$block[‘id‘].‘"}‘;
                $tplfile=HDWIKI_ROOT.‘/block/‘.$block[‘theme‘].‘/‘.$block[‘block‘].‘/‘.$block[‘tpl‘];
                if(!file_exists($tplfile)){
                    $tplfile=HDWIKI_ROOT.‘/block/default/‘.$block[‘block‘].‘/‘.$block[‘tpl‘];
                }
                $datastr.=file::readfromfile($tplfile);
            }
        }
        return $datastr;
    }
}
?>