diff options
| author | wei <> | 2006-01-06 04:42:44 +0000 |
|---|---|---|
| committer | wei <> | 2006-01-06 04:42:44 +0000 |
| commit | 4835704a04cf5aa5ec71a8aef902d54b9c6cae82 (patch) | |
| tree | 39623c082a78db1b3569a12ab54aa751d376af21 /framework/I18N/core/NumberFormat.php | |
| parent | 673d5c08a4d27906864659def27c7783fe45c04f (diff) | |
Adding I18N support.
Diffstat (limited to 'framework/I18N/core/NumberFormat.php')
| -rw-r--r-- | framework/I18N/core/NumberFormat.php | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/framework/I18N/core/NumberFormat.php b/framework/I18N/core/NumberFormat.php new file mode 100644 index 00000000..bde87e65 --- /dev/null +++ b/framework/I18N/core/NumberFormat.php @@ -0,0 +1,297 @@ +<?php
+
+/**
+ * NumberFormat class file.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the BSD License.
+ *
+ * Copyright(c) 2004 by Qiang Xue. All rights reserved.
+ *
+ * To contact the author write to {@link mailto:qiang.xue@gmail.com Qiang Xue}
+ * The latest version of PRADO can be obtained from:
+ * {@link http://prado.sourceforge.net/}
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Revision: 1.6 $ $Date: 2005/12/20 09:32:42 $
+ * @package System.I18N.core
+ */
+
+/**
+ * Get the NumberFormatInfo class file.
+ */
+require_once(dirname(__FILE__).'/NumberFormatInfo.php');
+
+
+/**
+ * Get the encoding utilities
+ */
+require_once(dirname(__FILE__).'/util.php');
+
+
+/**
+ * NumberFormat class.
+ *
+ * NumberFormat formats decimal numbers in any locale. The decimal
+ * number is formatted according to a particular pattern. These
+ * patterns can arise from the NumberFormatInfo object which is
+ * culturally sensitive. The NumberFormat class can be instantiated in
+ * many ways. E.g.
+ *
+ * <code>
+ * //create a invariant number formatter.
+ * $formatter = new NumberFormat();
+ *
+ * //create a number format for the french language locale.
+ * $fr = new NumberFormat('fr');
+ *
+ * //create a number format base on a NumberFormatInfo instance $numberInfo.
+ * $format = new NumberFormat($numberInfo);
+ * </code>
+ *
+ * A normal decimal number can also be displayed as a currency
+ * or as a percentage. For example
+ * <code>
+ * $format->format(1234.5); //Decimal number "1234.5"
+ * $format->format(1234.5,'c'); //Default currency "$1234.50"
+ * $format->format(0.25, 'p') //Percent "25%"
+ * </code>
+ *
+ * Currency is formated using the localized currency pattern. For example
+ * to format the number as Japanese Yen:
+ * <code>
+ * $ja = new NumberFormat('ja_JP');
+ *
+ * //Japanese currency pattern, and using Japanese Yen symbol
+ * $ja->format(123.14,'c','JPY'); //ï¿?123 (Yen 123)
+ * </code>
+ * For each culture, the symbol for each currency may be different.
+ *
+ * @author Xiang Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version v1.0, last update on Fri Dec 10 18:10:20 EST 2004
+ * @package System.I18N.core
+ */
+class NumberFormat
+{
+
+ /**
+ * The DateTimeFormatInfo, containing culture specific patterns and names.
+ * @var DateTimeFormatInfo
+ */
+ protected $formatInfo;
+
+ /**
+ * Create a new number format instance. The constructor can be instantiated
+ * with a string that represent a culture/locale. Similarly, passing
+ * a CultureInfo or NumberFormatInfo instance will instantiated a instance
+ * for that particular culture.
+ * @param mixed either null, a CultureInfo, a NumberFormatInfo, or string
+ * @return NumberFormat
+ */
+ function __construct($formatInfo=null)
+ {
+ if(is_null($formatInfo))
+ $this->formatInfo = NumberFormatInfo::getInvariantInfo();
+ else if($formatInfo instanceof CultureInfo)
+ $this->formatInfo = $formatInfo->NumberFormat;
+ else if($formatInfo instanceof NumberFormatInfo)
+ $this->formatInfo = $formatInfo;
+ else
+ $this->formatInfo =
+ NumberFormatInfo::getInstance($formatInfo);
+ }
+
+ /**
+ * For the number for a certain pattern. The valid patterns are
+ * 'c', 'd', 'e', 'p' or a custom pattern, such as "#.000" for
+ * 3 decimal places.
+ * @param mixed the number to format.
+ * @param string the format pattern, either, 'c', 'd', 'e', 'p'
+ * or a custom pattern. E.g. "#.000" will format the number to
+ * 3 decimal places.
+ * @param string 3-letter ISO 4217 code. For example, the code
+ * "USD" represents the US Dollar and "EUR" represents the Euro currency.
+ * @return string formatted number string
+ */
+ function format($number, $pattern='d', $currency='USD', $charset='UTF-8')
+ {
+ $this->setPattern($pattern);
+
+ if(strtolower($pattern) == 'p')
+ $number = $number * 100;
+
+ $string = (string)$number;
+
+
+ $decimal = $this->formatDecimal($string);
+ $integer = $this->formatInteger(abs($number));
+
+ if(strlen($decimal)>0)
+ $result = $integer.$decimal;
+ else
+ $result = $integer;
+
+ //get the suffix
+ if($number > 0)
+ $suffix = $this->formatInfo->PositivePattern;
+ else if($number < 0)
+ $suffix = $this->formatInfo->NegativePattern;
+ else
+ $suffix = array("","");
+
+ //append and prepend suffix
+ $result = $suffix[0].$result.$suffix[1];
+
+ //replace currency sign
+ $symbol = @$this->formatInfo->getCurrencySymbol($currency);
+ if(is_null($symbol))
+ $symbol = $currency;
+
+ $result = str_replace('¤',$symbol, $result);
+
+ return I18N_toEncoding($result, $charset);
+ }
+
+ /**
+ * For the integer, perform groupings and string padding.
+ * @param string the decimal number in string form.
+ * @return string formatted integer string with grouping
+ */
+ protected function formatInteger($string)
+ {
+ $string = (string)$string;
+ $dp = strpos($string, '.');
+
+ if(is_int($dp))
+ $string = substr($string, 0, $dp);
+
+ $integer = '';
+
+ $len = strlen($string);
+
+ $groupSeparator = $this->formatInfo->GroupSeparator;
+ $groupSize = $this->formatInfo->GroupSizes;
+
+ $firstGroup = true;
+ $multiGroup = is_int($groupSize[1]);
+ $count = 0;
+
+ if(is_int($groupSize[0]))
+ {
+ //now for the integer groupings
+ for($i=0; $i<$len; $i++)
+ {
+ $char = $string{$len-$i-1};
+
+ if($multiGroup && $count == 0)
+ {
+ if($i != 0 && $i%$groupSize[0] == 0)
+ {
+ $integer = $groupSeparator . $integer;
+ $count++;
+ }
+ }
+ else if($multiGroup && $count >= 1)
+ {
+ if($i != 0 && ($i-$groupSize[0])%$groupSize[1] == 0)
+ {
+ $integer = $groupSeparator . $integer;
+ $count++;
+ }
+ }
+ else
+ {
+ if($i != 0 && $i%$groupSize[0] == 0)
+ {
+ $integer = $groupSeparator . $integer;
+ $count++;
+ }
+ }
+
+ $integer = $char . $integer;
+ }
+ }
+ else
+ $integer = $string;
+
+ return $integer;
+ }
+
+ /**
+ * Format the decimal places.
+ * @param string the decimal number in string form.
+ * @return string formatted decimal places.
+ */
+ protected function formatDecimal($string)
+ {
+ $dp = strpos($string, '.');
+ $decimal = '';
+
+ $decimalDigits = $this->formatInfo->DecimalDigits;
+ $decimalSeparator = $this->formatInfo->DecimalSeparator;
+
+ if(is_int($dp))
+ {
+ if($decimalDigits == -1)
+ {
+ $decimal = substr($string, $dp+1);
+ }
+ else if(is_int($decimalDigits))
+ {
+ $float = round((float)$string, $decimalDigits);
+ if(strpos((string)$float, '.') === false)
+ {
+ $decimal = str_pad($decimal,$decimalDigits,'0');
+ }
+ else
+ {
+ $decimal = substr($float, strpos($float,'.')+1);
+ if(strlen($decimal)<$decimalDigits)
+ $decimal = str_pad($decimal,$decimalDigits,'0');
+ }
+ }
+ else
+ return $decimal;
+
+ return $decimalSeparator.$decimal;
+ }
+ else if ($decimalDigits > 0)
+ return $decimalSeparator.str_pad($decimal,$decimalDigits,'0');
+
+ return $decimal;
+ }
+
+ /**
+ * Set the pattern to format against. The default patterns
+ * are retrieved from the NumberFormatInfo instance.
+ * @param string the requested patterns.
+ * @return string a number format pattern.
+ */
+ protected function setPattern($pattern)
+ {
+ switch($pattern)
+ {
+ case 'c':
+ case 'C':
+ $this->formatInfo->setPattern(NumberFormatInfo::CURRENCY);
+ break;
+ case 'd':
+ case 'D':
+ $this->formatInfo->setPattern(NumberFormatInfo::DECIMAL);
+ break;
+ case 'e':
+ case 'E':
+ $this->formatInfo->setPattern(NumberFormatInfo::SCIENTIFIC);
+ break;
+ case 'p':
+ case 'P':
+ $this->formatInfo->setPattern(NumberFormatInfo::PERCENTAGE);
+ break;
+ default:
+ $this->formatInfo->setPattern($pattern);
+ break;
+ }
+ }
+}
+
+?>
\ No newline at end of file |