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Updated to handle more things

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This commit is contained in:
Shoghi Cervantes Pueyo
2012-12-07 19:47:07 +01:00
parent 02b2e980eb
commit c63240c7a8
12 changed files with 229 additions and 178 deletions
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66
classes/Utils.class.php
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@ -252,14 +252,6 @@ class Utils{
return pack("H*" , $hex);
}
public static function readString($str){
return preg_replace('/\x00(.)/s', '$1', $str);
}
public static function writeString($str){
return preg_replace('/(.)/s', "\x00$1", $str);
}
public static function readBool($b){
return Utils::readByte($b, false) === 0 ? false:true;
}
@ -300,6 +292,21 @@ class Utils{
}
return pack("n", $value);
}
public static function readLShort($str, $signed = true){
list(,$unpacked) = unpack("v", $str);
if($unpacked > 0x7fff and $signed === true){
$unpacked -= 0x10000; // Convert unsigned short to signed short
}
return $unpacked;
}
public static function writeLShort($value){
if($value < 0){
$value += 0x10000;
}
return pack("v", $value);
}
public static function readInt($str){
list(,$unpacked) = unpack("N", $str);
@ -316,6 +323,21 @@ class Utils{
return pack("N", $value);
}
public static function readLInt($str){
list(,$unpacked) = unpack("V", $str);
if($unpacked >= 2147483648){
$unpacked -= 4294967296;
}
return (int) $unpacked;
}
public static function writeLInt($value){
if($value < 0){
$value += 0x100000000;
}
return pack("V", $value);
}
public static function readFloat($str){
list(,$value) = ENDIANNESS === BIG_ENDIAN ? unpack("f", $str):unpack("f", strrev($str));
return $value;
@ -325,6 +347,15 @@ class Utils{
return ENDIANNESS === BIG_ENDIAN ? pack("f", $value):strrev(pack("f", $value));
}
public static function readLFloat($str){
list(,$value) = ENDIANNESS === BIG_ENDIAN ? unpack("f", strrev($str)):unpack("f", $str);
return $value;
}
public static function writeLFloat($value){
return ENDIANNESS === BIG_ENDIAN ? strrev(pack("f", $value)):pack("f", $value);
}
public static function printFloat($value){
return preg_replace("/(\.\d+?)0+$/", "$1", sprintf("%F", $value));
}
@ -337,6 +368,15 @@ class Utils{
public static function writeDouble($value){
return ENDIANNESS === BIG_ENDIAN ? pack("d", $value):strrev(pack("d", $value));
}
public static function readLDouble($str){
list(,$value) = ENDIANNESS === BIG_ENDIAN ? unpack("d", strrev($str)):unpack("d", $str);
return $value;
}
public static function writeLDouble($value){
return ENDIANNESS === BIG_ENDIAN ? strrev(pack("d", $value)):pack("d", $value);
}
public static function readLong($str){
$long = new Math_BigInteger($str, -256);
@ -346,6 +386,16 @@ class Utils{
public static function writeLong($value){
$long = new Math_BigInteger($value, -10);
return str_pad($long->toBytes(true), 8, "\x00", STR_PAD_LEFT);
}
public static function readLLong($str){
$long = new Math_BigInteger(strrev($str), -256);
return $long->toString();
}
public static function writeLLong($value){
$long = new Math_BigInteger($value, -10);
return strrev(str_pad($long->toBytes(true), 8, "\x00", STR_PAD_LEFT));
}
}