--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/Zend/Locale/Math.php Fri Mar 11 15:05:35 2011 +0100
@@ -0,0 +1,355 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category Zend
+ * @package Zend_Locale
+ * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id: Math.php 21180 2010-02-23 22:00:29Z matthew $
+ */
+
+
+/**
+ * Utility class for proxying math function to bcmath functions, if present,
+ * otherwise to PHP builtin math operators, with limited detection of overflow conditions.
+ * Sampling of PHP environments and platforms suggests that at least 80% to 90% support bcmath.
+ * Thus, this file should be as light as possible.
+ *
+ * @category Zend
+ * @package Zend_Locale
+ * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+class Zend_Locale_Math
+{
+ // support unit testing without using bcmath functions
+ public static $_bcmathDisabled = false;
+
+ public static $add = array('Zend_Locale_Math', 'Add');
+ public static $sub = array('Zend_Locale_Math', 'Sub');
+ public static $pow = array('Zend_Locale_Math', 'Pow');
+ public static $mul = array('Zend_Locale_Math', 'Mul');
+ public static $div = array('Zend_Locale_Math', 'Div');
+ public static $comp = array('Zend_Locale_Math', 'Comp');
+ public static $sqrt = array('Zend_Locale_Math', 'Sqrt');
+ public static $mod = array('Zend_Locale_Math', 'Mod');
+ public static $scale = 'bcscale';
+
+ public static function isBcmathDisabled()
+ {
+ return self::$_bcmathDisabled;
+ }
+
+ /**
+ * Surprisingly, the results of this implementation of round()
+ * prove better than the native PHP round(). For example, try:
+ * round(639.795, 2);
+ * round(267.835, 2);
+ * round(0.302515, 5);
+ * round(0.36665, 4);
+ * then try:
+ * Zend_Locale_Math::round('639.795', 2);
+ */
+ public static function round($op1, $precision = 0)
+ {
+ if (self::$_bcmathDisabled) {
+ $op1 = round($op1, $precision);
+ if (strpos((string) $op1, 'E') === false) {
+ return self::normalize(round($op1, $precision));
+ }
+ }
+
+ if (strpos($op1, 'E') !== false) {
+ $op1 = self::floatalize($op1);
+ }
+
+ $op1 = trim(self::normalize($op1));
+ $length = strlen($op1);
+ if (($decPos = strpos($op1, '.')) === false) {
+ $op1 .= '.0';
+ $decPos = $length;
+ $length += 2;
+ }
+ if ($precision < 0 && abs($precision) > $decPos) {
+ return '0';
+ }
+
+ $digitsBeforeDot = $length - ($decPos + 1);
+ if ($precision >= ($length - ($decPos + 1))) {
+ return $op1;
+ }
+
+ if ($precision === 0) {
+ $triggerPos = 1;
+ $roundPos = -1;
+ } elseif ($precision > 0) {
+ $triggerPos = $precision + 1;
+ $roundPos = $precision;
+ } else {
+ $triggerPos = $precision;
+ $roundPos = $precision -1;
+ }
+
+ $triggerDigit = $op1[$triggerPos + $decPos];
+ if ($precision < 0) {
+ // zero fill digits to the left of the decimal place
+ $op1 = substr($op1, 0, $decPos + $precision) . str_pad('', abs($precision), '0');
+ }
+
+ if ($triggerDigit >= '5') {
+ if ($roundPos + $decPos == -1) {
+ return str_pad('1', $decPos + 1, '0');
+ }
+
+ $roundUp = str_pad('', $length, '0');
+ $roundUp[$decPos] = '.';
+ $roundUp[$roundPos + $decPos] = '1';
+
+ if ($op1 > 0) {
+ if (self::$_bcmathDisabled) {
+ return Zend_Locale_Math_PhpMath::Add($op1, $roundUp, $precision);
+ }
+ return self::Add($op1, $roundUp, $precision);
+ } else {
+ if (self::$_bcmathDisabled) {
+ return Zend_Locale_Math_PhpMath::Sub($op1, $roundUp, $precision);
+ }
+ return self::Sub($op1, $roundUp, $precision);
+ }
+ } elseif ($precision >= 0) {
+ return substr($op1, 0, $decPos + ($precision ? $precision + 1: 0));
+ }
+
+ return (string) $op1;
+ }
+
+ /**
+ * Convert a scientific notation to float
+ * Additionally fixed a problem with PHP <= 5.2.x with big integers
+ *
+ * @param string $value
+ */
+ public static function floatalize($value)
+ {
+ $value = strtoupper($value);
+ if (strpos($value, 'E') === false) {
+ return $value;
+ }
+
+ $number = substr($value, 0, strpos($value, 'E'));
+ if (strpos($number, '.') !== false) {
+ $post = strlen(substr($number, strpos($number, '.') + 1));
+ $mantis = substr($value, strpos($value, 'E') + 1);
+ if ($mantis < 0) {
+ $post += abs((int) $mantis);
+ }
+
+ $value = number_format($value, $post, '.', '');
+ } else {
+ $value = number_format($value, 0, '.', '');
+ }
+
+ return $value;
+ }
+
+ /**
+ * Normalizes an input to standard english notation
+ * Fixes a problem of BCMath with setLocale which is PHP related
+ *
+ * @param integer $value Value to normalize
+ * @return string Normalized string without BCMath problems
+ */
+ public static function normalize($value)
+ {
+ $convert = localeconv();
+ $value = str_replace($convert['thousands_sep'], "",(string) $value);
+ $value = str_replace($convert['positive_sign'], "", $value);
+ $value = str_replace($convert['decimal_point'], ".",$value);
+ if (!empty($convert['negative_sign']) and (strpos($value, $convert['negative_sign']))) {
+ $value = str_replace($convert['negative_sign'], "", $value);
+ $value = "-" . $value;
+ }
+
+ return $value;
+ }
+
+ /**
+ * Localizes an input from standard english notation
+ * Fixes a problem of BCMath with setLocale which is PHP related
+ *
+ * @param integer $value Value to normalize
+ * @return string Normalized string without BCMath problems
+ */
+ public static function localize($value)
+ {
+ $convert = localeconv();
+ $value = str_replace(".", $convert['decimal_point'], (string) $value);
+ if (!empty($convert['negative_sign']) and (strpos($value, "-"))) {
+ $value = str_replace("-", $convert['negative_sign'], $value);
+ }
+ return $value;
+ }
+
+ /**
+ * Changes exponential numbers to plain string numbers
+ * Fixes a problem of BCMath with numbers containing exponents
+ *
+ * @param integer $value Value to erase the exponent
+ * @param integer $scale (Optional) Scale to use
+ * @return string
+ */
+ public static function exponent($value, $scale = null)
+ {
+ if (!extension_loaded('bcmath')) {
+ return $value;
+ }
+
+ $split = explode('e', $value);
+ if (count($split) == 1) {
+ $split = explode('E', $value);
+ }
+
+ if (count($split) > 1) {
+ $value = bcmul($split[0], bcpow(10, $split[1], $scale), $scale);
+ }
+
+ return $value;
+ }
+
+ /**
+ * BCAdd - fixes a problem of BCMath and exponential numbers
+ *
+ * @param string $op1
+ * @param string $op2
+ * @param integer $scale
+ * @return string
+ */
+ public static function Add($op1, $op2, $scale = null)
+ {
+ $op1 = self::exponent($op1, $scale);
+ $op2 = self::exponent($op2, $scale);
+
+ return bcadd($op1, $op2, $scale);
+ }
+
+ /**
+ * BCSub - fixes a problem of BCMath and exponential numbers
+ *
+ * @param string $op1
+ * @param string $op2
+ * @param integer $scale
+ * @return string
+ */
+ public static function Sub($op1, $op2, $scale = null)
+ {
+ $op1 = self::exponent($op1, $scale);
+ $op2 = self::exponent($op2, $scale);
+ return bcsub($op1, $op2, $scale);
+ }
+
+ /**
+ * BCPow - fixes a problem of BCMath and exponential numbers
+ *
+ * @param string $op1
+ * @param string $op2
+ * @param integer $scale
+ * @return string
+ */
+ public static function Pow($op1, $op2, $scale = null)
+ {
+ $op1 = self::exponent($op1, $scale);
+ $op2 = self::exponent($op2, $scale);
+ return bcpow($op1, $op2, $scale);
+ }
+
+ /**
+ * BCMul - fixes a problem of BCMath and exponential numbers
+ *
+ * @param string $op1
+ * @param string $op2
+ * @param integer $scale
+ * @return string
+ */
+ public static function Mul($op1, $op2, $scale = null)
+ {
+ $op1 = self::exponent($op1, $scale);
+ $op2 = self::exponent($op2, $scale);
+ return bcmul($op1, $op2, $scale);
+ }
+
+ /**
+ * BCDiv - fixes a problem of BCMath and exponential numbers
+ *
+ * @param string $op1
+ * @param string $op2
+ * @param integer $scale
+ * @return string
+ */
+ public static function Div($op1, $op2, $scale = null)
+ {
+ $op1 = self::exponent($op1, $scale);
+ $op2 = self::exponent($op2, $scale);
+ return bcdiv($op1, $op2, $scale);
+ }
+
+ /**
+ * BCSqrt - fixes a problem of BCMath and exponential numbers
+ *
+ * @param string $op1
+ * @param integer $scale
+ * @return string
+ */
+ public static function Sqrt($op1, $scale = null)
+ {
+ $op1 = self::exponent($op1, $scale);
+ return bcsqrt($op1, $scale);
+ }
+
+ /**
+ * BCMod - fixes a problem of BCMath and exponential numbers
+ *
+ * @param string $op1
+ * @param string $op2
+ * @return string
+ */
+ public static function Mod($op1, $op2)
+ {
+ $op1 = self::exponent($op1);
+ $op2 = self::exponent($op2);
+ return bcmod($op1, $op2);
+ }
+
+ /**
+ * BCComp - fixes a problem of BCMath and exponential numbers
+ *
+ * @param string $op1
+ * @param string $op2
+ * @param integer $scale
+ * @return string
+ */
+ public static function Comp($op1, $op2, $scale = null)
+ {
+ $op1 = self::exponent($op1, $scale);
+ $op2 = self::exponent($op2, $scale);
+ return bccomp($op1, $op2, $scale);
+ }
+}
+
+if (!extension_loaded('bcmath')
+ || (defined('TESTS_ZEND_LOCALE_BCMATH_ENABLED') && !TESTS_ZEND_LOCALE_BCMATH_ENABLED)
+) {
+ require_once 'Zend/Locale/Math/PhpMath.php';
+ Zend_Locale_Math_PhpMath::disable();
+}