引擎文件

复制代码 代码如下:<?php
/**
*默默基于Discuz的模板引擎开发的OOP类模板引擎，可支持模板缓存并生成hash的md5值。由hash值来判断模板是否被修改，假如被修改则重新生成缓存文件，假如没有被修改，则直接调用缓存文件.
*版本:1.0.0.1beta测试版
*/
classmmtp{

var$left_tags="{";
var$right_tags="}";
var$tp_suffix=".html";
var$cache_suffix=".tpl";
var$tp_dir="./";
var$cache_dir="./";

/**
*允许循环嵌套的次数，默认为5
*
*@varunknown_type
*/
var$nest=5;
/**
*模板路径
*
*@paramunknown_type$tp_dir
*@returnmmtp
*/

function__setdir($tp_dir){
if(file_exists($tp_dir)){
$this->tp_dir=$tp_dir;
}else{
$this->error("模板路径不存在");
}
}

/**
*设置缓存目录
*
*@paramunknown_type$cache_dir
*/
function__setcdir($cache_dir){
if(file_exists($cache_dir)){
$this->cache_dir=$cache_dir;
}else{
$this->error("缓存路径不存在");
}
}

/**
*输出错误信息
*
*@paramunknown_type$msg
*/

functionerror($msg){
print"<divstyle=\"font-size:12px;color:red;\">".$msg."</div>";
}

/**
*解析模板
*
*@paramunknown_type$file
*/

functiontp($file){
$tp_path=$this->tp_dir.$file.$this->tp_suffix;
$fp=fopen($tp_path,"rb");
if(!$this->file_test($tp_path,"r")&&!$this->match_hash($file)){
$template=$this->file_read($tp_path);

$var_regexp="((\\\$[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)(\[[a-zA-Z0-9_\-\.\"\'\[\]\$\x7f-\xff]+\])*)";
$const_regexp="([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)";
$template=preg_replace("/([\n\r]+)\t+/s","\\1",$template);
$template=preg_replace("/\<\!\-\-\{(.+?)\}\-\-\>/s","{\\1}",$template);
$template=preg_replace("/\{lang\s+(.+?)\}/ies","languagevar('\\1')",$template);
$template=str_replace("{LF}","<?=\"\\n\"?>",$template);

$template=preg_replace("/\{(\\\$[a-zA-Z0-9_\[\]\'\"\$\.\x7f-\xff]+)\}/s","<?=\\1?>",$template);
$template=preg_replace("/$var_regexp/es","\$this->addquote('<?=\\1?>')",$template);
$template=preg_replace("/\<\?\=\<\?\=$var_regexp\?\>\?\>/es","\$this->addquote('<?=\\1?>')",$template);


$template=preg_replace("/[\n\r\t]*\{template\s+([a-z0-9_]+)\}[\n\r\t]*/is","\n<?include('".$this->cache_dir."\\1".$this->cache_suffix."');?>\n",$template);
$template=preg_replace("/[\n\r\t]*\{template\s+(.+?)\}[\n\r\t]*/is","\n<?include('".$this->cache_dir."\\1".$$this->cache_suffix."');?>\n",$template);
$template=preg_replace("/[\n\r\t]*\{eval\s+(.+?)\}[\n\r\t]*/ies","\$this->stripvtags('\n<?\\1?>\n','')",$template);
$template=preg_replace("/[\n\r\t]*\{echo\s+(.+?)\}[\n\r\t]*/ies","\$this->stripvtags('\n<?echo\\1;?>\n','')",$template);
$template=preg_replace("/[\n\r\t]*\{elseif\s+(.+?)\}[\n\r\t]*/ies","\$this->stripvtags('\n<?}elseif(\\1){?>\n','')",$template);
$template=preg_replace("/[\n\r\t]*\{else\}[\n\r\t]*/is","\n<?}else{?>\n",$template);

for($i=0;$i<$this->nest;$i++){
$template=preg_replace("/[\n\r\t]*\{loop\s+(\S+)\s+(\S+)\}[\n\r]*(.+?)[\n\r]*\{\/loop\}[\n\r\t]*/ies","\$this->stripvtags('\n<?if(is_array(\\1)){foreach(\\1as\\2){?>','\n\\3\n<?}}?>\n')",$template);
$template=preg_replace("/[\n\r\t]*\{loop\s+(\S+)\s+(\S+)\s+(\S+)\}[\n\r\t]*(.+?)[\n\r\t]*\{\/loop\}[\n\r\t]*/ies","\$this->stripvtags('\n<?if(is_array(\\1)){foreach(\\1as\\2=>\\3){?>','\n\\4\n<?}}?>\n')",$template);
$template=preg_replace("/[\n\r\t]*\{if\s+(.+?)\}[\n\r]*(.+?)[\n\r]*\{\/if\}[\n\r\t]*/ies","\$this->stripvtags('\n<?if(\\1){?>','\n\\2\n<?}?>\n')",$template);
}

$template=preg_replace("/\{$const_regexp\}/s","<?=\\1?>",$template);
$template=preg_replace("/\?\>[\n\r]*\<\?/s","",$template);
$hash=$this->file_hash($tp_path);
$head_hash="<!--hash=".$hash."-->";
$foot_time="<!--time=".(date("Y-m-dG:i:s"))."-->";
$this->file_write($this->cache_dir.$file.".tpl",$head_hash.$template.$foot_time);



}
}


/**
*检查文件是否存在并且有读取权限
*
*@paramunknown_type$path
*/

functionfile_test($path,$method){
if(!file_exists($path)||!fopen($path,$method)){
$this->error("模板文件不存在,或没有操作权限");
returnfalse;
}
}

/**
*读取文件内容
*
*@paramunknown_type$path
*@returnunknown
*/
functionfile_read($path,$length=0){
if(!$this->file_test($path,"r+")){
$fp=@fopen($path,"r+");
if($length==0){
$contents=@fread($fp,filesize($path));
}else{
$contents=@fread($fp,$length);
}
fclose($fp);
return$contents;
}
}


/**
*写入文件内容
*
*@paramunknown_type$path
*@paramunknown_type$puts
*/
functionfile_write($path,$puts){

if(!$this->file_test($path,"w+")){
$fp=@fopen($path,"w+");
@fwrite($fp,$puts);
fclose($fp);
}

}


/**
*计算文件的hash
*
*@paramunknown_type$path
*@returnunknown
*/
functionfile_hash($path){
returnmd5_file($path);
}


/**
*对比模板文件与缓存文件的hash值
*
*@paramunknown_type$file
*@returnunknown
*/
functionmatch_hash($file){
$read_hash=$this->file_read($this->cache_dir.$file.$this->cache_suffix,46);

$html_hash=$this->file_hash($this->tp_dir.$file.$this->tp_suffix);

if(preg_match("/".$html_hash."/i",$read_hash)){
returntrue;
}

}

functionaddquote($var){
returnstr_replace("\\\"","\"",preg_replace("/\[([a-zA-Z0-9_\-\.\x7f-\xff]+)\]/s","['\\1']",$var));
}

functiontransamp($str){
$str=str_replace('&','&amp;',$str);
$str=str_replace('&amp;amp;','&amp;',$str);
$str=str_replace('\"','"',$str);
return$str;
}

functionstripvtags($expr,$statement){
$expr=str_replace("\\\"","\"",preg_replace("/\<\?\=(\\\$.+?)\?\>/s","\\1",$expr));
$statement=str_replace("\\\"","\"",$statement);
return$expr.$statement;
}

}


$tp=newmmtp();
$tp->__setdir("./");
$tp->__setcdir("./cache/");
$tp->tp("index1");
$_GET[it]=sdhkadajksdhajdhkajsdhjkasdjkasdhasjdhkjsadhk;
$name=2;
$head="欢迎使用MoMo模板引擎";
include("./cache/index1.tpl");
?>



模板index.html
复制代码 代码如下:{$head}
模板index1.html
复制代码 代码如下:{templateindex}
{if$name==1}
你好
{else}
谢谢
{/if}

这个模板是默默今天下午写的,写的比较仓促,也许存在漏洞,这个版本只是测试版,以后我会逐渐的去完善,先发出来,当作一个前瞻.