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<?php/*** PHPExcel** Copyright (c) 2006 - 2013 PHPExcel** This library is free software; you can redistribute it and/or* modify it under the terms of the GNU Lesser General Public* License as published by the Free Software Foundation; either* version 2.1 of the License, or (at your option) any later version.** This library is distributed in the hope that it will be useful,* but WITHOUT ANY WARRANTY; without even the implied warranty of* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU* Lesser General Public License for more details.** You should have received a copy of the GNU Lesser General Public* License along with this library; if not, write to the Free Software* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA** @category PHPExcel* @package PHPExcel_Shared* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL* @version ##VERSION##, ##DATE##*//*** PHPExcel_Shared_String** @category PHPExcel* @package PHPExcel_Shared* @copyright Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)*/class PHPExcel_Shared_String{/** Constants *//** Regular Expressions */// Fractionconst STRING_REGEXP_FRACTION = '(-?)(\d+)\s+(\d+\/\d+)';/*** Control characters array** @var string[]*/private static $_controlCharacters = array();/*** SYLK Characters array** $var array*/private static $_SYLKCharacters = array();/*** Decimal separator** @var string*/private static $_decimalSeparator;/*** Thousands separator** @var string*/private static $_thousandsSeparator;/*** Currency code** @var string*/private static $_currencyCode;/*** Is mbstring extension avalable?** @var boolean*/private static $_isMbstringEnabled;/*** Is iconv extension avalable?** @var boolean*/private static $_isIconvEnabled;/*** Build control characters array*/private static function _buildControlCharacters() {for ($i = 0; $i <= 31; ++$i) {if ($i != 9 && $i != 10 && $i != 13) {$find = '_x' . sprintf('%04s' , strtoupper(dechex($i))) . '_';$replace = chr($i);self::$_controlCharacters[$find] = $replace;}}}/*** Build SYLK characters array*/private static function _buildSYLKCharacters(){self::$_SYLKCharacters = array("\x1B 0" => chr(0),"\x1B 1" => chr(1),"\x1B 2" => chr(2),"\x1B 3" => chr(3),"\x1B 4" => chr(4),"\x1B 5" => chr(5),"\x1B 6" => chr(6),"\x1B 7" => chr(7),"\x1B 8" => chr(8),"\x1B 9" => chr(9),"\x1B :" => chr(10),"\x1B ;" => chr(11),"\x1B <" => chr(12),"\x1B :" => chr(13),"\x1B >" => chr(14),"\x1B ?" => chr(15),"\x1B!0" => chr(16),"\x1B!1" => chr(17),"\x1B!2" => chr(18),"\x1B!3" => chr(19),"\x1B!4" => chr(20),"\x1B!5" => chr(21),"\x1B!6" => chr(22),"\x1B!7" => chr(23),"\x1B!8" => chr(24),"\x1B!9" => chr(25),"\x1B!:" => chr(26),"\x1B!;" => chr(27),"\x1B!<" => chr(28),"\x1B!=" => chr(29),"\x1B!>" => chr(30),"\x1B!?" => chr(31),"\x1B'?" => chr(127),"\x1B(0" => '€', // 128 in CP1252"\x1B(2" => '‚', // 130 in CP1252"\x1B(3" => 'ƒ', // 131 in CP1252"\x1B(4" => '„', // 132 in CP1252"\x1B(5" => '…', // 133 in CP1252"\x1B(6" => '†', // 134 in CP1252"\x1B(7" => '‡', // 135 in CP1252"\x1B(8" => 'ˆ', // 136 in CP1252"\x1B(9" => '‰', // 137 in CP1252"\x1B(:" => 'Š', // 138 in CP1252"\x1B(;" => '‹', // 139 in CP1252"\x1BNj" => 'Œ', // 140 in CP1252"\x1B(>" => 'Ž', // 142 in CP1252"\x1B)1" => '‘', // 145 in CP1252"\x1B)2" => '’', // 146 in CP1252"\x1B)3" => '“', // 147 in CP1252"\x1B)4" => '”', // 148 in CP1252"\x1B)5" => '•', // 149 in CP1252"\x1B)6" => '–', // 150 in CP1252"\x1B)7" => '—', // 151 in CP1252"\x1B)8" => '˜', // 152 in CP1252"\x1B)9" => '™', // 153 in CP1252"\x1B):" => 'š', // 154 in CP1252"\x1B);" => '›', // 155 in CP1252"\x1BNz" => 'œ', // 156 in CP1252"\x1B)>" => 'ž', // 158 in CP1252"\x1B)?" => 'Ÿ', // 159 in CP1252"\x1B*0" => ' ', // 160 in CP1252"\x1BN!" => '¡', // 161 in CP1252"\x1BN\"" => '¢', // 162 in CP1252"\x1BN#" => '£', // 163 in CP1252"\x1BN(" => '¤', // 164 in CP1252"\x1BN%" => '¥', // 165 in CP1252"\x1B*6" => '¦', // 166 in CP1252"\x1BN'" => '§', // 167 in CP1252"\x1BNH " => '¨', // 168 in CP1252"\x1BNS" => '©', // 169 in CP1252"\x1BNc" => 'ª', // 170 in CP1252"\x1BN+" => '«', // 171 in CP1252"\x1B*<" => '¬', // 172 in CP1252"\x1B*=" => '', // 173 in CP1252"\x1BNR" => '®', // 174 in CP1252"\x1B*?" => '¯', // 175 in CP1252"\x1BN0" => '°', // 176 in CP1252"\x1BN1" => '±', // 177 in CP1252"\x1BN2" => '²', // 178 in CP1252"\x1BN3" => '³', // 179 in CP1252"\x1BNB " => '´', // 180 in CP1252"\x1BN5" => 'µ', // 181 in CP1252"\x1BN6" => '¶', // 182 in CP1252"\x1BN7" => '·', // 183 in CP1252"\x1B+8" => '¸', // 184 in CP1252"\x1BNQ" => '¹', // 185 in CP1252"\x1BNk" => 'º', // 186 in CP1252"\x1BN;" => '»', // 187 in CP1252"\x1BN<" => '¼', // 188 in CP1252"\x1BN=" => '½', // 189 in CP1252"\x1BN>" => '¾', // 190 in CP1252"\x1BN?" => '¿', // 191 in CP1252"\x1BNAA" => 'À', // 192 in CP1252"\x1BNBA" => 'Á', // 193 in CP1252"\x1BNCA" => 'Â', // 194 in CP1252"\x1BNDA" => 'Ã', // 195 in CP1252"\x1BNHA" => 'Ä', // 196 in CP1252"\x1BNJA" => 'Å', // 197 in CP1252"\x1BNa" => 'Æ', // 198 in CP1252"\x1BNKC" => 'Ç', // 199 in CP1252"\x1BNAE" => 'È', // 200 in CP1252"\x1BNBE" => 'É', // 201 in CP1252"\x1BNCE" => 'Ê', // 202 in CP1252"\x1BNHE" => 'Ë', // 203 in CP1252"\x1BNAI" => 'Ì', // 204 in CP1252"\x1BNBI" => 'Í', // 205 in CP1252"\x1BNCI" => 'Î', // 206 in CP1252"\x1BNHI" => 'Ï', // 207 in CP1252"\x1BNb" => 'Ð', // 208 in CP1252"\x1BNDN" => 'Ñ', // 209 in CP1252"\x1BNAO" => 'Ò', // 210 in CP1252"\x1BNBO" => 'Ó', // 211 in CP1252"\x1BNCO" => 'Ô', // 212 in CP1252"\x1BNDO" => 'Õ', // 213 in CP1252"\x1BNHO" => 'Ö', // 214 in CP1252"\x1B-7" => '×', // 215 in CP1252"\x1BNi" => 'Ø', // 216 in CP1252"\x1BNAU" => 'Ù', // 217 in CP1252"\x1BNBU" => 'Ú', // 218 in CP1252"\x1BNCU" => 'Û', // 219 in CP1252"\x1BNHU" => 'Ü', // 220 in CP1252"\x1B-=" => 'Ý', // 221 in CP1252"\x1BNl" => 'Þ', // 222 in CP1252"\x1BN{" => 'ß', // 223 in CP1252"\x1BNAa" => 'à', // 224 in CP1252"\x1BNBa" => 'á', // 225 in CP1252"\x1BNCa" => 'â', // 226 in CP1252"\x1BNDa" => 'ã', // 227 in CP1252"\x1BNHa" => 'ä', // 228 in CP1252"\x1BNJa" => 'å', // 229 in CP1252"\x1BNq" => 'æ', // 230 in CP1252"\x1BNKc" => 'ç', // 231 in CP1252"\x1BNAe" => 'è', // 232 in CP1252"\x1BNBe" => 'é', // 233 in CP1252"\x1BNCe" => 'ê', // 234 in CP1252"\x1BNHe" => 'ë', // 235 in CP1252"\x1BNAi" => 'ì', // 236 in CP1252"\x1BNBi" => 'í', // 237 in CP1252"\x1BNCi" => 'î', // 238 in CP1252"\x1BNHi" => 'ï', // 239 in CP1252"\x1BNs" => 'ð', // 240 in CP1252"\x1BNDn" => 'ñ', // 241 in CP1252"\x1BNAo" => 'ò', // 242 in CP1252"\x1BNBo" => 'ó', // 243 in CP1252"\x1BNCo" => 'ô', // 244 in CP1252"\x1BNDo" => 'õ', // 245 in CP1252"\x1BNHo" => 'ö', // 246 in CP1252"\x1B/7" => '÷', // 247 in CP1252"\x1BNy" => 'ø', // 248 in CP1252"\x1BNAu" => 'ù', // 249 in CP1252"\x1BNBu" => 'ú', // 250 in CP1252"\x1BNCu" => 'û', // 251 in CP1252"\x1BNHu" => 'ü', // 252 in CP1252"\x1B/=" => 'ý', // 253 in CP1252"\x1BN|" => 'þ', // 254 in CP1252"\x1BNHy" => 'ÿ', // 255 in CP1252);}/*** Get whether mbstring extension is available** @return boolean*/public static function getIsMbstringEnabled(){if (isset(self::$_isMbstringEnabled)) {return self::$_isMbstringEnabled;}self::$_isMbstringEnabled = function_exists('mb_convert_encoding') ?true : false;return self::$_isMbstringEnabled;}/*** Get whether iconv extension is available** @return boolean*/public static function getIsIconvEnabled(){if (isset(self::$_isIconvEnabled)) {return self::$_isIconvEnabled;}// Fail if iconv doesn't existif (!function_exists('iconv')) {self::$_isIconvEnabled = false;return false;}// Sometimes iconv is not working, and e.g. iconv('UTF-8', 'UTF-16LE', 'x') just returns false,if (!@iconv('UTF-8', 'UTF-16LE', 'x')) {self::$_isIconvEnabled = false;return false;}// Sometimes iconv_substr('A', 0, 1, 'UTF-8') just returns false in PHP 5.2.0// we cannot use iconv in that case either (http://bugs.php.net/bug.php?id=37773)if (!@iconv_substr('A', 0, 1, 'UTF-8')) {self::$_isIconvEnabled = false;return false;}// CUSTOM: IBM AIX iconv() does not workif ( defined('PHP_OS') && @stristr(PHP_OS, 'AIX')&& defined('ICONV_IMPL') && (@strcasecmp(ICONV_IMPL, 'unknown') == 0)&& defined('ICONV_VERSION') && (@strcasecmp(ICONV_VERSION, 'unknown') == 0) ){self::$_isIconvEnabled = false;return false;}// If we reach here no problems were detected with iconvself::$_isIconvEnabled = true;return true;}public static function buildCharacterSets() {if(empty(self::$_controlCharacters)) {self::_buildControlCharacters();}if(empty(self::$_SYLKCharacters)) {self::_buildSYLKCharacters();}}/*** Convert from OpenXML escaped control character to PHP control character** Excel 2007 team:* ----------------* That's correct, control characters are stored directly in the shared-strings table.* We do encode characters that cannot be represented in XML using the following escape sequence:* _xHHHH_ where H represents a hexadecimal character in the character's value...* So you could end up with something like _x0008_ in a string (either in a cell value (<v>)* element or in the shared string <t> element.** @param string $value Value to unescape* @return string*/public static function ControlCharacterOOXML2PHP($value = '') {return str_replace( array_keys(self::$_controlCharacters), array_values(self::$_controlCharacters), $value );}/*** Convert from PHP control character to OpenXML escaped control character** Excel 2007 team:* ----------------* That's correct, control characters are stored directly in the shared-strings table.* We do encode characters that cannot be represented in XML using the following escape sequence:* _xHHHH_ where H represents a hexadecimal character in the character's value...* So you could end up with something like _x0008_ in a string (either in a cell value (<v>)* element or in the shared string <t> element.** @param string $value Value to escape* @return string*/public static function ControlCharacterPHP2OOXML($value = '') {return str_replace( array_values(self::$_controlCharacters), array_keys(self::$_controlCharacters), $value );}/*** Try to sanitize UTF8, stripping invalid byte sequences. Not perfect. Does not surrogate characters.** @param string $value* @return string*/public static function SanitizeUTF8($value){if (self::getIsIconvEnabled()) {$value = @iconv('UTF-8', 'UTF-8', $value);return $value;}if (self::getIsMbstringEnabled()) {$value = mb_convert_encoding($value, 'UTF-8', 'UTF-8');return $value;}// else, no conversionreturn $value;}/*** Check if a string contains UTF8 data** @param string $value* @return boolean*/public static function IsUTF8($value = '') {return utf8_encode(utf8_decode($value)) === $value;}/*** Formats a numeric value as a string for output in various output writers forcing* point as decimal separator in case locale is other than English.** @param mixed $value* @return string*/public static function FormatNumber($value) {if (is_float($value)) {return str_replace(',', '.', $value);}return (string) $value;}/*** Converts a UTF-8 string into BIFF8 Unicode string data (8-bit string length)* Writes the string using uncompressed notation, no rich text, no Asian phonetics* If mbstring extension is not available, ASCII is assumed, and compressed notation is used* although this will give wrong results for non-ASCII strings* see OpenOffice.org's Documentation of the Microsoft Excel File Format, sect. 2.5.3** @param string $value UTF-8 encoded string* @param mixed[] $arrcRuns Details of rich text runs in $value* @return string*/public static function UTF8toBIFF8UnicodeShort($value, $arrcRuns = array()){// character count$ln = self::CountCharacters($value, 'UTF-8');// option flagsif(empty($arrcRuns)){$opt = (self::getIsIconvEnabled() || self::getIsMbstringEnabled()) ?0x0001 : 0x0000;$data = pack('CC', $ln, $opt);// characters$data .= self::ConvertEncoding($value, 'UTF-16LE', 'UTF-8');}else {$data = pack('vC', $ln, 0x09);$data .= pack('v', count($arrcRuns));// characters$data .= self::ConvertEncoding($value, 'UTF-16LE', 'UTF-8');foreach ($arrcRuns as $cRun){$data .= pack('v', $cRun['strlen']);$data .= pack('v', $cRun['fontidx']);}}return $data;}/*** Converts a UTF-8 string into BIFF8 Unicode string data (16-bit string length)* Writes the string using uncompressed notation, no rich text, no Asian phonetics* If mbstring extension is not available, ASCII is assumed, and compressed notation is used* although this will give wrong results for non-ASCII strings* see OpenOffice.org's Documentation of the Microsoft Excel File Format, sect. 2.5.3** @param string $value UTF-8 encoded string* @return string*/public static function UTF8toBIFF8UnicodeLong($value){// character count$ln = self::CountCharacters($value, 'UTF-8');// option flags$opt = (self::getIsIconvEnabled() || self::getIsMbstringEnabled()) ?0x0001 : 0x0000;// characters$chars = self::ConvertEncoding($value, 'UTF-16LE', 'UTF-8');$data = pack('vC', $ln, $opt) . $chars;return $data;}/*** Convert string from one encoding to another. First try mbstring, then iconv, finally strlen** @param string $value* @param string $to Encoding to convert to, e.g. 'UTF-8'* @param string $from Encoding to convert from, e.g. 'UTF-16LE'* @return string*/public static function ConvertEncoding($value, $to, $from){if (self::getIsIconvEnabled()) {return iconv($from, $to, $value);}if (self::getIsMbstringEnabled()) {return mb_convert_encoding($value, $to, $from);}if($from == 'UTF-16LE'){return self::utf16_decode($value, false);}else if($from == 'UTF-16BE'){return self::utf16_decode($value);}// else, no conversionreturn $value;}/*** Decode UTF-16 encoded strings.** Can handle both BOM'ed data and un-BOM'ed data.* Assumes Big-Endian byte order if no BOM is available.* This function was taken from http://php.net/manual/en/function.utf8-decode.php* and $bom_be parameter added.** @param string $str UTF-16 encoded data to decode.* @return string UTF-8 / ISO encoded data.* @access public* @version 0.2 / 2010-05-13* @author Rasmus Andersson {@link http://rasmusandersson.se/}* @author vadik56*/public static function utf16_decode($str, $bom_be = TRUE) {if( strlen($str) < 2 ) return $str;$c0 = ord($str{0});$c1 = ord($str{1});if( $c0 == 0xfe && $c1 == 0xff ) { $str = substr($str,2); }elseif( $c0 == 0xff && $c1 == 0xfe ) { $str = substr($str,2); $bom_be = false; }$len = strlen($str);$newstr = '';for($i=0;$i<$len;$i+=2) {if( $bom_be ) { $val = ord($str{$i}) << 4; $val += ord($str{$i+1}); }else { $val = ord($str{$i+1}) << 4; $val += ord($str{$i}); }$newstr .= ($val == 0x228) ? "\n" : chr($val);}return $newstr;}/*** Get character count. First try mbstring, then iconv, finally strlen** @param string $value* @param string $enc Encoding* @return int Character count*/public static function CountCharacters($value, $enc = 'UTF-8'){if (self::getIsMbstringEnabled()) {return mb_strlen($value, $enc);}if (self::getIsIconvEnabled()) {return iconv_strlen($value, $enc);}// else strlenreturn strlen($value);}/*** Get a substring of a UTF-8 encoded string. First try mbstring, then iconv, finally strlen** @param string $pValue UTF-8 encoded string* @param int $pStart Start offset* @param int $pLength Maximum number of characters in substring* @return string*/public static function Substring($pValue = '', $pStart = 0, $pLength = 0){if (self::getIsMbstringEnabled()) {return mb_substr($pValue, $pStart, $pLength, 'UTF-8');}if (self::getIsIconvEnabled()) {return iconv_substr($pValue, $pStart, $pLength, 'UTF-8');}// else substrreturn substr($pValue, $pStart, $pLength);}/*** Convert a UTF-8 encoded string to upper case** @param string $pValue UTF-8 encoded string* @return string*/public static function StrToUpper($pValue = ''){if (function_exists('mb_convert_case')) {return mb_convert_case($pValue, MB_CASE_UPPER, "UTF-8");}return strtoupper($pValue);}/*** Convert a UTF-8 encoded string to lower case** @param string $pValue UTF-8 encoded string* @return string*/public static function StrToLower($pValue = ''){if (function_exists('mb_convert_case')) {return mb_convert_case($pValue, MB_CASE_LOWER, "UTF-8");}return strtolower($pValue);}/*** Convert a UTF-8 encoded string to title/proper case* (uppercase every first character in each word, lower case all other characters)** @param string $pValue UTF-8 encoded string* @return string*/public static function StrToTitle($pValue = ''){if (function_exists('mb_convert_case')) {return mb_convert_case($pValue, MB_CASE_TITLE, "UTF-8");}return ucwords($pValue);}/*** Identify whether a string contains a fractional numeric value,* and convert it to a numeric if it is** @param string &$operand string value to test* @return boolean*/public static function convertToNumberIfFraction(&$operand) {if (preg_match('/^'.self::STRING_REGEXP_FRACTION.'$/i', $operand, $match)) {$sign = ($match[1] == '-') ? '-' : '+';$fractionFormula = '='.$sign.$match[2].$sign.$match[3];$operand = PHPExcel_Calculation::getInstance()->_calculateFormulaValue($fractionFormula);return true;}return false;} // function convertToNumberIfFraction()/*** Get the decimal separator. If it has not yet been set explicitly, try to obtain number* formatting information from locale.** @return string*/public static function getDecimalSeparator(){if (!isset(self::$_decimalSeparator)) {$localeconv = localeconv();self::$_decimalSeparator = ($localeconv['decimal_point'] != '')? $localeconv['decimal_point'] : $localeconv['mon_decimal_point'];if (self::$_decimalSeparator == '') {// Default to .self::$_decimalSeparator = '.';}}return self::$_decimalSeparator;}/*** Set the decimal separator. Only used by PHPExcel_Style_NumberFormat::toFormattedString()* to format output by PHPExcel_Writer_HTML and PHPExcel_Writer_PDF** @param string $pValue Character for decimal separator*/public static function setDecimalSeparator($pValue = '.'){self::$_decimalSeparator = $pValue;}/*** Get the thousands separator. If it has not yet been set explicitly, try to obtain number* formatting information from locale.** @return string*/public static function getThousandsSeparator(){if (!isset(self::$_thousandsSeparator)) {$localeconv = localeconv();self::$_thousandsSeparator = ($localeconv['thousands_sep'] != '')? $localeconv['thousands_sep'] : $localeconv['mon_thousands_sep'];if (self::$_thousandsSeparator == '') {// Default to .self::$_thousandsSeparator = ',';}}return self::$_thousandsSeparator;}/*** Set the thousands separator. Only used by PHPExcel_Style_NumberFormat::toFormattedString()* to format output by PHPExcel_Writer_HTML and PHPExcel_Writer_PDF** @param string $pValue Character for thousands separator*/public static function setThousandsSeparator($pValue = ','){self::$_thousandsSeparator = $pValue;}/*** Get the currency code. If it has not yet been set explicitly, try to obtain the* symbol information from locale.** @return string*/public static function getCurrencyCode(){if (!isset(self::$_currencyCode)) {$localeconv = localeconv();self::$_currencyCode = ($localeconv['currency_symbol'] != '')? $localeconv['currency_symbol'] : $localeconv['int_curr_symbol'];if (self::$_currencyCode == '') {// Default to $self::$_currencyCode = '$';}}return self::$_currencyCode;}/*** Set the currency code. Only used by PHPExcel_Style_NumberFormat::toFormattedString()* to format output by PHPExcel_Writer_HTML and PHPExcel_Writer_PDF** @param string $pValue Character for currency code*/public static function setCurrencyCode($pValue = '$'){self::$_currencyCode = $pValue;}/*** Convert SYLK encoded string to UTF-8** @param string $pValue* @return string UTF-8 encoded string*/public static function SYLKtoUTF8($pValue = ''){// If there is no escape character in the string there is nothing to doif (strpos($pValue, '') === false) {return $pValue;}foreach (self::$_SYLKCharacters as $k => $v) {$pValue = str_replace($k, $v, $pValue);}return $pValue;}/*** Retrieve any leading numeric part of a string, or return the full string if no leading numeric* (handles basic integer or float, but not exponent or non decimal)** @param string $value* @return mixed string or only the leading numeric part of the string*/public static function testStringAsNumeric($value){if (is_numeric($value))return $value;$v = floatval($value);return (is_numeric(substr($value,0,strlen($v)))) ? $v : $value;}}