<?php
class jsCssCompressor {
var $block_css,$block_js;
function makeJs($pathes,$to) {
if(file_exists($to)) unlink($to);
$fp=fopen($to,"a+");
foreach($pathes as $v) {
$data=file_get_contents($v);
fwrite($fp, $this->clear_js($data));
}
fclose($fp);
if(file_exists($to)) {return true;}else{return false;}
}
function makeCss($pathes,$to) {
if(file_exists($to)) unlink($to);
$fp=fopen($to,"a+");
foreach($pathes as $v) {
$data=file_get_contents($v);
fwrite($fp, $this->clear_css($data));
}
fclose($fp);
if(file_exists($to)) {return true;}else{return false;}
}
function compressJs($data) {
return $this->clear_js($data);
}
function compressCss($data) {
return $this->clear_css($data);
}
function clear_js($data) {
$data=$this->strip_comments_js($data);
$data=$this->strip_multipled_spaces($data);
$data=$this->make_one_line($data);
$data=$this->strip_spaces_js($data);
$data=$this->strip_booleans_js($data);
return $data;
}
function clear_css($data) {
$data=$this->strip_comments_css($data);
$data=$this->strip_multipled_spaces($data);
$data=$this->make_one_line($data);
return $data;
}
function strip_comments_js($data) {
$data=eregi_replace("\/\/[^\n]*",'',$data);
$data=preg_replace("|\/\*[\s\S]*\*\/|iU",'',$data);
return $data;
}
function strip_comments_css($data) {
$data=preg_replace("|\/\*[\s\S]*\*\/|iU",'',$data);
return $data;
}
function strip_multipled_spaces($data) {
return eregi_replace("[ ]+",' ',$data);
}
function make_one_line($data) {
return eregi_replace("[\n\r]+",'',$data);
}
function strip_spaces_js($data) {
$find=array(
"/(([^\n])?function )+/i",
"/(([^\n])?var )+/i",
"/(([^\n])?case )+/i",
"/( typeof )+/i",
"/(else if)+/i",
"/(([^\n])?return )+/i"
);
$findS=array(
"/( in )+/i",
"/(([^\n])?for)+/i",
"/(([^\n])?while)+/i"
);
if(!self::$block_js) {
function strip_js($m) {
if(count($m)>2) {
if(in_array($m[2],array(" ",";","(","=","{",")","}","/")) || !$m[2]) {
$val=trim($m[1])."{*}";
} else {
$val=$m[1];
}
return $val;
} else {
if($m[1]=="else if") {
return "else{*}if";
} else {
return " ".trim($m[1])."{*}";
}
}
}
self::$block_js=1;
function strip_specious($m) {
if(count($m)>2) {
$a=eregi_replace("[ ]",'',$m[2]);
if($a!=";" && $a!="") {
return "};".substr(trim($m[1]),1);
} else {
return trim($m[1]);
}
} else {
return "{*}".trim($m[1])."{*}";
}
}
}
$data=preg_replace_callback($find,"strip_js",$data);
$data=preg_replace_callback($findS,"strip_specious",$data);
$findB=array("/\|\|/","/\&\&/");
$rep=array("{*}||{*}","{*}&&{*}");
$data=preg_replace($findB,$rep,$data);
$data=eregi_replace("[ ]",'',$data);
$data=eregi_replace("\{\*\}",' ',$data);
return $data;
}
function strip_booleans_js($data) {
$find=array("/\|\|/","/\&\&/");
$rep=array(" || "," && ");
$data=preg_replace($find,$rep,$data);
return $data;
}
}
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