<?php<liu21st@gmail.com>namespace Think;
class Template {
protected $tagLib = array();
protected $templateFile = '';
public $tVar = array();
public $config = array();
private $literal = array();
private $block = array();
public function __construct(){
$this->config['cache_path'] = C('CACHE_PATH');
$this->config['template_suffix'] = C('TMPL_TEMPLATE_SUFFIX');
$this->config['cache_suffix'] = C('TMPL_CACHFILE_SUFFIX');
$this->config['tmpl_cache'] = C('TMPL_CACHE_ON');
$this->config['cache_time'] = C('TMPL_CACHE_TIME');
$this->config['taglib_begin'] = $this->stripPreg(C('TAGLIB_BEGIN'));
$this->config['taglib_end'] = $this->stripPreg(C('TAGLIB_END'));
$this->config['tmpl_begin'] = $this->stripPreg(C('TMPL_L_DELIM'));
$this->config['tmpl_end'] = $this->stripPreg(C('TMPL_R_DELIM'));
$this->config['default_tmpl'] = C('TEMPLATE_NAME');
$this->config['layout_item'] = C('TMPL_LAYOUT_ITEM');
}
private function stripPreg($str) {
return str_replace(
array('{','}','(',')','|','[',']','-','+','*','.','^','?'),
array('\{','\}','\(','\)','\|','\[','\]','\-','\+','\*','\.','\^','\?'),
$str);
}
public function get($name) {
if(isset($this->tVar[$name]))
return $this->tVar[$name];
else
return false;
}
public function set($name,$value) {
$this->tVar[$name]= $value;
}
public function fetch($templateFile,$templateVar,$prefix='') {
$this->tVar = $templateVar;
$templateCacheFile = $this->loadTemplate($templateFile,$prefix);
Storage::load($templateCacheFile,$this->tVar,null,'tpl');
}
public function loadTemplate ($tmplTemplateFile,$prefix='') {
if(is_file($tmplTemplateFile)) {
$this->templateFile = $tmplTemplateFile;
$tmplContent = file_get_contents($tmplTemplateFile);
}else{
$tmplContent = $tmplTemplateFile;
}
$tmplCacheFile = $this->config['cache_path'].$prefix.md5($tmplTemplateFile).$this->config['cache_suffix'];
if(C('LAYOUT_ON')) {
if(false !== strpos($tmplContent,'{__NOLAYOUT__}')) { $tmplContent = str_replace('{__NOLAYOUT__}','',$tmplContent);
}else{ $layoutFile = THEME_PATH.C('LAYOUT_NAME').$this->config['template_suffix'];
$tmplContent = str_replace($this->config['layout_item'],$tmplContent,file_get_contents($layoutFile));
}
}
$tmplContent = $this->compiler($tmplContent);
Storage::put($tmplCacheFile,trim($tmplContent),'tpl');
return $tmplCacheFile;
}
protected function compiler($tmplContent) {
$tmplContent = $this->parse($tmplContent);
$tmplContent = preg_replace_callback('//is', array($this, 'restoreLiteral'), $tmplContent);
$tmplContent = '<?php if (!defined(\'THINK_PATH\')) exit();?>'.$tmplContent;
$tmplContent = str_replace('?><?php','',$tmplContent);
Hook::listen('template_filter',$tmplContent);
return strip_whitespace($tmplContent);
}
public function parse($content) {
if(empty($content)) return '';
$begin = $this->config['taglib_begin'];
$end = $this->config['taglib_end'];
$content = $this->parseInclude($content);
$content = $this->parsePhp($content);
$content = preg_replace_callback('/'.$begin.'literal'.$end.'(.*?)'.$begin.'\/literal'.$end.'/is', array($this, 'parseLiteral'),$content);
<taglib name="html,mytag..." />
if(C('TAGLIB_LOAD')) {
$this->getIncludeTagLib($content);
if(!empty($this->tagLib)) {
foreach($this->tagLib as $tagLibName) {
$this->parseTagLib($tagLibName,$content);
}
}
}
if(C('TAGLIB_PRE_LOAD')) {
$tagLibs = explode(',',C('TAGLIB_PRE_LOAD'));
foreach ($tagLibs as $tag){
$this->parseTagLib($tag,$content);
}
}
$tagLibs = explode(',',C('TAGLIB_BUILD_IN'));
foreach ($tagLibs as $tag){
$this->parseTagLib($tag,$content,true);
}
$content = preg_replace_callback('/('.$this->config['tmpl_begin'].')([^\d\s'.$this->config['tmpl_begin'].$this->config['tmpl_end'].'].+?)('.$this->config['tmpl_end'].')/is', array($this, 'parseTag'),$content);
return $content;
}
protected function parsePhp($content) {
if(ini_get('short_open_tag')){
$content = preg_replace('/(<\?(?!php|=|$))/i', '<?php echo \'\\1\'; ?>'."\n", $content );
}
if(C('TMPL_DENY_PHP') && false !== strpos($content,'<?php')) {
E(L('_NOT_ALLOW_PHP_'));
}
return $content;
}
protected function parseLayout($content) {
$find = preg_match('/'.$this->config['taglib_begin'].'layout\s(.+?)\s*?\/'.$this->config['taglib_end'].'/is',$content,$matches);
if($find) {
$content = str_replace($matches[0],'',$content);
$array = $this->parseXmlAttrs($matches[1]);
if(!C('LAYOUT_ON') || C('LAYOUT_NAME') !=$array['name'] ) {
$layoutFile = THEME_PATH.$array['name'].$this->config['template_suffix'];
$replace = isset($array['replace'])?$array['replace']:$this->config['layout_item'];
$content = str_replace($replace,$content,file_get_contents($layoutFile));
}
}else{
$content = str_replace('{__NOLAYOUT__}','',$content);
}
return $content;
}
protected function parseInclude($content, $extend = true) {
if($extend)
$content = $this->parseExtend($content);
$content = $this->parseLayout($content);
$find = preg_match_all('/'.$this->config['taglib_begin'].'include\s(.+?)\s*?\/'.$this->config['taglib_end'].'/is',$content,$matches);
if($find) {
for($i=0;$i<$find;$i++) {
$include = $matches[1][$i];
$array = $this->parseXmlAttrs($include);
$file = $array['file'];
unset($array['file']);
$content = str_replace($matches[0][$i],$this->parseIncludeItem($file,$array,$extend),$content);
}
}
return $content;
}
protected function parseExtend($content) {
$begin = $this->config['taglib_begin'];
$end = $this->config['taglib_end'];
$find = preg_match('/'.$begin.'extend\s(.+?)\s*?\/'.$end.'/is',$content,$matches);
if($find) {
$content = str_replace($matches[0],'',$content);
preg_replace_callback('/'.$begin.'block\sname=[\'"](.+?)[\'"]\s*?'.$end.'(.*?)'.$begin.'\/block'.$end.'/is', array($this, 'parseBlock'),$content);
$array = $this->parseXmlAttrs($matches[1]);
$content = $this->parseTemplateName($array['name']);
$content = $this->parseInclude($content, false); $content = $this->replaceBlock($content);
}else{
$content = preg_replace_callback('/'.$begin.'block\sname=[\'"](.+?)[\'"]\s*?'.$end.'(.*?)'.$begin.'\/block'.$end.'/is', function($match){return stripslashes($match[2]);}, $content);
}
return $content;
}
private function parseXmlAttrs($attrs) {
$xml = '<tpl><tag '.$attrs.' /></tpl>';
$xml = simplexml_load_string($xml);
if(!$xml)
E(L('_XML_TAG_ERROR_'));
$xml = (array)($xml->tag->attributes());
$array = array_change_key_case($xml['@attributes']);
return $array;
}
private function parseLiteral($content) {
if(is_array($content)) $content = $content[1];
if(trim($content)=='') return '';
$i = count($this->literal);
$parseStr = "";
$this->literal[$i] = $content;
return $parseStr;
}
private function restoreLiteral($tag) {
if(is_array($tag)) $tag = $tag[1];
$parseStr = $this->literal[$tag];
unset($this->literal[$tag]);
return $parseStr;
}
private function parseBlock($name,$content = '') {
if(is_array($name)){
$content = $name[2];
$name = $name[1];
}
$this->block[$name] = $content;
return '';
}
private function replaceBlock($content){
static $parse = 0;
$begin = $this->config['taglib_begin'];
$end = $this->config['taglib_end'];
$reg = '/('.$begin.'block\sname=[\'"](.+?)[\'"]\s*?'.$end.')(.*?)'.$begin.'\/block'.$end.'/is';
if(is_string($content)){
do{
$content = preg_replace_callback($reg, array($this, 'replaceBlock'), $content);
} while ($parse && $parse--);
return $content;
} elseif(is_array($content)){
if(preg_match('/'.$begin.'block\sname=[\'"](.+?)[\'"]\s*?'.$end.'/is', $content[3])){ $parse = 1;
$content[3] = preg_replace_callback($reg, array($this, 'replaceBlock'), "{$content[3]}{$begin}/block{$end}");
return $content[1] . $content[3];
} else {
$name = $content[2];
$content = $content[3];
$content = isset($this->block[$name]) ? $this->block[$name] : $content;
return $content;
}
}
}
public function getIncludeTagLib(& $content) {
$find = preg_match('/'.$this->config['taglib_begin'].'taglib\s(.+?)(\s*?)\/'.$this->config['taglib_end'].'\W/is',$content,$matches);
if($find) {
$content = str_replace($matches[0],'',$content);
$array = $this->parseXmlAttrs($matches[1]);
$this->tagLib = explode(',',$array['name']);
}
return;
}
public function parseTagLib($tagLib,&$content,$hide=false) {
$begin = $this->config['taglib_begin'];
$end = $this->config['taglib_end'];
if(strpos($tagLib,'\\')){
$className = $tagLib;
$tagLib = substr($tagLib,strrpos($tagLib,'\\')+1);
}else{
$className = 'Think\\Template\TagLib\\'.ucwords($tagLib);
}
$tLib = \Think\Think::instance($className);
$that = $this;
foreach ($tLib->getTags() as $name=>$val){
$tags = array($name);
if(isset($val['alias'])) $tags = explode(',',$val['alias']);
$tags[] = $name;
}
$level = isset($val['level'])?$val['level']:1;
$closeTag = isset($val['close'])?$val['close']:true;
foreach ($tags as $tag){
$parseTag = !$hide? $tagLib.':'.$tag: $tag if(!method_exists($tLib,'_'.$tag)) {
$tag = $name;
}
$n1 = empty($val['attr'])?'(\s*?)':'\s([^'.$end.']*)';
$this->tempVar = array($tagLib, $tag);
if (!$closeTag){
$patterns = '/'.$begin.$parseTag.$n1.'\/(\s*?)'.$end.'/is';
$content = preg_replace_callback($patterns, function($matches) use($tLib,$tag,$that){
return $that->parseXmlTag($tLib,$tag,$matches[1],$matches[2]);
},$content);
}else{
$patterns = '/'.$begin.$parseTag.$n1.$end.'(.*?)'.$begin.'\/'.$parseTag.'(\s*?)'.$end.'/is';
for($i=0;$i<$level;$i++) {
$content=preg_replace_callback($patterns,function($matches) use($tLib,$tag,$that){
return $that->parseXmlTag($tLib,$tag,$matches[1],$matches[2]);
},$content);
}
}
}
}
}
public function parseXmlTag($tagLib,$tag,$attr,$content) {
if(ini_get('magic_quotes_sybase'))
$attr = str_replace('\"','\'',$attr);
$parse = '_'.$tag;
$content = trim($content);
$tags = $tagLib->parseXmlAttr($attr,$tag);
return $tagLib->$parse($tags,$content);
}
public function parseTag($tagStr){
if(is_array($tagStr)) $tagStr = $tagStr[2];
$tagStr = stripslashes($tagStr);
if(preg_match('/^[\s|\d]/is',$tagStr))
return C('TMPL_L_DELIM') . $tagStr .C('TMPL_R_DELIM');
$flag = substr($tagStr,0,1);
$flag2 = substr($tagStr,1,1);
$name = substr($tagStr,1);
if('';
}elseif(':' == $flag){ return '<?php echo '.$name.';?>';
}elseif('~' == $flag){ return '<?php '.$name.';?>';
}elseif(substr($tagStr,0,2)== return '';
}
return C('TMPL_L_DELIM') . $tagStr .C('TMPL_R_DELIM');
}
public function parseVar($varStr){
$varStr = trim($varStr);
static $_varParseList = array();
if(isset($_varParseList[$varStr])) return $_varParseList[$varStr];
$parseStr = '';
$varExists = true;
if(!empty($varStr)){
$varArray = explode('|',$varStr);
$var = array_shift($varArray);
if('Think.' == substr($var,0,6)){
$name = $this->parseThinkVar($var);
}elseif( false !== strpos($var,'.')) {
$vars = explode('.',$var);
$var = array_shift($vars);
switch(strtolower(C('TMPL_VAR_IDENTIFY'))) {
case 'array': $name = '$'.$var;
foreach ($vars as $key=>$val)
$name .= '["'.$val.'"]';
break;
case 'obj': $name = '$'.$var;
foreach ($vars as $key=>$val)
$name .= '->'.$val;
break;
default: $name = 'is_array($'.$var.')?$'.$var.'["'.$vars[0].'"]:$'.$var.'->'.$vars[0];
}
}elseif(false !== strpos($var,'[')) {
$name = "$".$var;
preg_match('/(.+?)\[(.+?)\]/is',$var,$match);
$var = $match[1];
}elseif(false !==strpos($var,':') && false ===strpos($var,'(') && false ===strpos($var,'::') && false ===strpos($var,'?')){
$vars = explode(':',$var);
$var = str_replace(':','->',$var);
$name = "$".$var;
$var = $vars[0];
}else {
$name = "$$var";
}
if(count($varArray)>0)
$name = $this->parseVarFunction($name,$varArray);
$parseStr = '<?php echo ('.$name.'); ?>';
}
$_varParseList[$varStr] = $parseStr;
return $parseStr;
}
public function parseVarFunction($name,$varArray){
$length = count($varArray);
$template_deny_funs = explode(',',C('TMPL_DENY_FUNC_LIST'));
for($i=0;$i<$length ;$i++ ){
$args = explode('=',$varArray[$i],2);
$fun = strtolower(trim($args[0]));
switch($fun) {
case 'default': $name = '(isset('.$name.') && ('.$name.' !== ""))?('.$name.'):'.$args[1];
break;
default: if(!in_array($fun,$template_deny_funs)){
if(isset($args[1])){
if(strstr($args[1],'###')){
$args[1] = str_replace('###',$name,$args[1]);
$name = "$fun($args[1])";
}else{
$name = "$fun($name,$args[1])";
}
}else if(!empty($args[0])){
$name = "$fun($name)";
}
}
}
}
return $name;
}
public function parseThinkVar($varStr){
$vars = explode('.',$varStr);
$vars[1] = strtoupper(trim($vars[1]));
$parseStr = '';
if(count($vars)>=3){
$vars[2] = trim($vars[2]);
switch($vars[1]){
case 'SERVER':
$parseStr = '$_SERVER[\''.strtoupper($vars[2]).'\']';break;
case 'GET':
$parseStr = '$_GET[\''.$vars[2].'\']';break;
case 'POST':
$parseStr = '$_POST[\''.$vars[2].'\']';break;
case 'COOKIE':
if(isset($vars[3])) {
$parseStr = '$_COOKIE[\''.$vars[2].'\'][\''.$vars[3].'\']';
}else{
$parseStr = 'cookie(\''.$vars[2].'\')';
}
break;
case 'SESSION':
if(isset($vars[3])) {
$parseStr = '$_SESSION[\''.$vars[2].'\'][\''.$vars[3].'\']';
}else{
$parseStr = 'session(\''.$vars[2].'\')';
}
break;
case 'ENV':
$parseStr = '$_ENV[\''.strtoupper($vars[2]).'\']';break;
case 'REQUEST':
$parseStr = '$_REQUEST[\''.$vars[2].'\']';break;
case 'CONST':
$parseStr = strtoupper($vars[2]);break;
case 'LANG':
$parseStr = 'L("'.$vars[2].'")';break;
case 'CONFIG':
if(isset($vars[3])) {
$vars[2] .= '.'.$vars[3];
}
$parseStr = 'C("'.$vars[2].'")';break;
default:break;
}
}else if(count($vars)==2){
switch($vars[1]){
case 'NOW':
$parseStr = "date('Y-m-d g:i a',time())";
break;
case 'VERSION':
$parseStr = 'THINK_VERSION';
break;
case 'TEMPLATE':
$parseStr = "'".$this->templateFile."'" break;
case 'LDELIM':
$parseStr = 'C("TMPL_L_DELIM")';
break;
case 'RDELIM':
$parseStr = 'C("TMPL_R_DELIM")';
break;
default:
if(defined($vars[1]))
$parseStr = $vars[1];
}
}
return $parseStr;
}
private function parseIncludeItem($tmplPublicName,$vars=array(),$extend){
$parseStr = $this->parseTemplateName($tmplPublicName);
foreach ($vars as $key=>$val) {
$parseStr = str_replace('['.$key.']',$val,$parseStr);
}
return $this->parseInclude($parseStr,$extend);
}
private function parseTemplateName($templateName){
if(substr($templateName,0,1)=='$')
$templateName = $this->get(substr($templateName,1));
$array = explode(',',$templateName);
$parseStr = '';
foreach ($array as $templateName){
if(empty($templateName)) continue;
if(false === strpos($templateName,$this->config['template_suffix'])) {
$templateName = T($templateName);
}
$parseStr .= file_get_contents($templateName);
}
return $parseStr;
}
}
== $flag && '.' != $flag2 && '(' != $flag2){ return $this->parseVar($name);
}elseif('-' == $flag || '+'== $flag){ return '<?php echo '.$flag.$name.';?>';
}elseif(':' == $flag){ return '{{{PHP4}}}';
}elseif('~' == $flag){ return '{{{PHP5}}}';
}elseif(substr($tagStr,0,2)== return '';
}
return C('TMPL_L_DELIM') . $tagStr .C('TMPL_R_DELIM');
}
public function parseVar($varStr){
$varStr = trim($varStr);
static $_varParseList = array();
if(isset($_varParseList[$varStr])) return $_varParseList[$varStr];
$parseStr = '';
$varExists = true;
if(!empty($varStr)){
$varArray = explode('|',$varStr);
$var = array_shift($varArray);
if('Think.' == substr($var,0,6)){
$name = $this->parseThinkVar($var);
}elseif( false !== strpos($var,'.')) {
$vars = explode('.',$var);
$var = array_shift($vars);
switch(strtolower(C('TMPL_VAR_IDENTIFY'))) {
case 'array': $name = '$'.$var;
foreach ($vars as $key=>$val)
$name .= '["'.$val.'"]';
break;
case 'obj': $name = '$'.$var;
foreach ($vars as $key=>$val)
$name .= '->'.$val;
break;
default: $name = 'is_array($'.$var.')?$'.$var.'["'.$vars[0].'"]:$'.$var.'->'.$vars[0];
}
}elseif(false !== strpos($var,'[')) {
$name = "$".$var;
preg_match('/(.+?)\[(.+?)\]/is',$var,$match);
$var = $match[1];
}elseif(false !==strpos($var,':') && false ===strpos($var,'(') && false ===strpos($var,'::') && false ===strpos($var,'?')){
$vars = explode(':',$var);
$var = str_replace(':','->',$var);
$name = "$".$var;
$var = $vars[0];
}else {
$name = "$$var";
}
if(count($varArray)>0)
$name = $this->parseVarFunction($name,$varArray);
$parseStr = '{{{PHP6}}}';
}
$_varParseList[$varStr] = $parseStr;
return $parseStr;
}
public function parseVarFunction($name,$varArray){
$length = count($varArray);
$template_deny_funs = explode(',',C('TMPL_DENY_FUNC_LIST'));
for($i=0;$i<$length ;$i++ ){
$args = explode('=',$varArray[$i],2);
$fun = strtolower(trim($args[0]));
switch($fun) {
case 'default': $name = '(isset('.$name.') && ('.$name.' !== ""))?('.$name.'):'.$args[1];
break;
default: if(!in_array($fun,$template_deny_funs)){
if(isset($args[1])){
if(strstr($args[1],'###')){
$args[1] = str_replace('###',$name,$args[1]);
$name = "$fun($args[1])";
}else{
$name = "$fun($name,$args[1])";
}
}else if(!empty($args[0])){
$name = "$fun($name)";
}
}
}
}
return $name;
}
public function parseThinkVar($varStr){
$vars = explode('.',$varStr);
$vars[1] = strtoupper(trim($vars[1]));
$parseStr = '';
if(count($vars)>=3){
$vars[2] = trim($vars[2]);
switch($vars[1]){
case 'SERVER':
$parseStr = '$_SERVER[\''.strtoupper($vars[2]).'\']';break;
case 'GET':
$parseStr = '$_GET[\''.$vars[2].'\']';break;
case 'POST':
$parseStr = '$_POST[\''.$vars[2].'\']';break;
case 'COOKIE':
if(isset($vars[3])) {
$parseStr = '$_COOKIE[\''.$vars[2].'\'][\''.$vars[3].'\']';
}else{
$parseStr = 'cookie(\''.$vars[2].'\')';
}
break;
case 'SESSION':
if(isset($vars[3])) {
$parseStr = '$_SESSION[\''.$vars[2].'\'][\''.$vars[3].'\']';
}else{
$parseStr = 'session(\''.$vars[2].'\')';
}
break;
case 'ENV':
$parseStr = '$_ENV[\''.strtoupper($vars[2]).'\']';break;
case 'REQUEST':
$parseStr = '$_REQUEST[\''.$vars[2].'\']';break;
case 'CONST':
$parseStr = strtoupper($vars[2]);break;
case 'LANG':
$parseStr = 'L("'.$vars[2].'")';break;
case 'CONFIG':
if(isset($vars[3])) {
$vars[2] .= '.'.$vars[3];
}
$parseStr = 'C("'.$vars[2].'")';break;
default:break;
}
}else if(count($vars)==2){
switch($vars[1]){
case 'NOW':
$parseStr = "date('Y-m-d g:i a',time())";
break;
case 'VERSION':
$parseStr = 'THINK_VERSION';
break;
case 'TEMPLATE':
$parseStr = "'".$this->templateFile."'" break;
case 'LDELIM':
$parseStr = 'C("TMPL_L_DELIM")';
break;
case 'RDELIM':
$parseStr = 'C("TMPL_R_DELIM")';
break;
default:
if(defined($vars[1]))
$parseStr = $vars[1];
}
}
return $parseStr;
}
private function parseIncludeItem($tmplPublicName,$vars=array(),$extend){
$parseStr = $this->parseTemplateName($tmplPublicName);
foreach ($vars as $key=>$val) {
$parseStr = str_replace('['.$key.']',$val,$parseStr);
}
return $this->parseInclude($parseStr,$extend);
}
private function parseTemplateName($templateName){
if(substr($templateName,0,1)=='$')
$templateName = $this->get(substr($templateName,1));
$array = explode(',',$templateName);
$parseStr = '';
foreach ($array as $templateName){
if(empty($templateName)) continue;
if(false === strpos($templateName,$this->config['template_suffix'])) {
$templateName = T($templateName);
}
$parseStr .= file_get_contents($templateName);
}
return $parseStr;
}
}
