PageRenderTime 49ms CodeModel.GetById 16ms RepoModel.GetById 1ms app.codeStats 0ms

/common/libraries/plugin/phpexcel/PHPExcel/Shared/String.php

https://bitbucket.org/renaatdemuynck/chamilo
PHP | 724 lines | 407 code | 58 blank | 259 comment | 62 complexity | cb279fd25991bf4ade7459b1349c0884 MD5 | raw file
Possible License(s): BSD-3-Clause, LGPL-2.1, LGPL-3.0, GPL-3.0, MIT, GPL-2.0 
    

  1. <?php

    2. 

  2. /**
    3. 

  3.  * PHPExcel
    4. 

  4.  *
    5. 

  5.  * Copyright (c) 2006 - 2011 PHPExcel
    6. 

  6.  *
    7. 

  7.  * This library is free software; you can redistribute it and/or
    8. 

  8.  * modify it under the terms of the GNU Lesser General Public
    9. 

  9.  * License as published by the Free Software Foundation; either
    10. 

  10.  * version 2.1 of the License, or (at your option) any later version.
    11. 

  11.  *
    12. 

  12.  * This library is distributed in the hope that it will be useful,
    13. 

  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    14. 

  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    15. 

  15.  * Lesser General Public License for more details.
    16. 

  16.  *
    17. 

  17.  * You should have received a copy of the GNU Lesser General Public
    18. 

  18.  * License along with this library; if not, write to the Free Software
    19. 

  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
    20. 

  20.  *
    21. 

  21.  * @category   PHPExcel
    22. 

  22.  * @package    PHPExcel_Shared
    23. 

  23.  * @copyright  Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
    24. 

  24.  * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
    25. 

  25.  * @version    1.7.6, 2011-02-27
    26. 

  26.  */

    27. 

  27. 

    28. 

  28. /**
    29. 

  29.  * PHPExcel_Shared_String
    30. 

  30.  *
    31. 

  31.  * @category   PHPExcel
    32. 

  32.  * @package    PHPExcel_Shared
    33. 

  33.  * @copyright  Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
    34. 

  34.  */

    35. 

  35. class PHPExcel_Shared_String

    36. 

  36. {

    37. 

  37.     /**	Constants				*/

    38. 

  38.     /**	Regular Expressions		*/

    39. 

  39.     //	Fraction
    40. 

  40.     const STRING_REGEXP_FRACTION = '(-?)(\d+)\s+(\d+\/\d+)';

    41. 

  41.     

    42. 

  42.     /**
    43. 

  43.      * Control characters array
    44. 

  44.      *
    45. 

  45.      * @var string[]
    46. 

  46.      */

    47. 

  47.     private static $_controlCharacters = array();

    48. 

  48.     

    49. 

  49.     /**
    50. 

  50.      * SYLK Characters array
    51. 

  51.      *
    52. 

  52.      * $var array
    53. 

  53.      */

    54. 

  54.     private static $_SYLKCharacters = array();

    55. 

  55.     

    56. 

  56.     /**
    57. 

  57.      * Decimal separator
    58. 

  58.      *
    59. 

  59.      * @var string
    60. 

  60.      */

    61. 

  61.     private static $_decimalSeparator;

    62. 

  62.     

    63. 

  63.     /**
    64. 

  64.      * Thousands separator
    65. 

  65.      *
    66. 

  66.      * @var string
    67. 

  67.      */

    68. 

  68.     private static $_thousandsSeparator;

    69. 

  69.     

    70. 

  70.     /**
    71. 

  71.      * Currency code
    72. 

  72.      *
    73. 

  73.      * @var string
    74. 

  74.      */

    75. 

  75.     private static $_currencyCode;

    76. 

  76.     

    77. 

  77.     /**
    78. 

  78.      * Is mbstring extension avalable?
    79. 

  79.      *
    80. 

  80.      * @var boolean
    81. 

  81.      */

    82. 

  82.     private static $_isMbstringEnabled;

    83. 

  83.     

    84. 

  84.     /**
    85. 

  85.      * Is iconv extension avalable?
    86. 

  86.      *
    87. 

  87.      * @var boolean
    88. 

  88.      */

    89. 

  89.     private static $_isIconvEnabled;

    90. 

  90. 

    91. 

  91.     /**
    92. 

  92.      * Build control characters array
    93. 

  93.      */

    94. 

  94.     private static function _buildControlCharacters()

    95. 

  95.     {

    96. 

  96.         for($i = 0; $i <= 31; ++ $i)

    97. 

  97.         {

    98. 

  98.             if ($i != 9 && $i != 10 && $i != 13)

    99. 

  99.             {

    100. 

  100.                 $find = '_x' . sprintf('%04s', strtoupper(dechex($i))) . '_';

    101. 

  101.                 $replace = chr($i);

    102. 

  102.                 self :: $_controlCharacters[$find] = $replace;

    103. 

  103.             }

    104. 

  104.         }

    105. 

  105.     }

    106. 

  106. 

    107. 

  107.     /**
    108. 

  108.      * Build SYLK characters array
    109. 

  109.      */

    110. 

  110.     private static function _buildSYLKCharacters()

    111. 

  111.     {

    112. 

  112.         self :: $_SYLKCharacters = array("\x1B 0" => chr(0), "\x1B 1" => chr(1), "\x1B 2" => chr(2), 

    113. 

  113.                 "\x1B 3" => chr(3), "\x1B 4" => chr(4), "\x1B 5" => chr(5), "\x1B 6" => chr(6), "\x1B 7" => chr(7), 

    114. 

  114.                 "\x1B 8" => chr(8), "\x1B 9" => chr(9), "\x1B :" => chr(10), "\x1B ;" => chr(11), "\x1B <" => chr(12), 

    115. 

  115.                 "\x1B :" => chr(13), "\x1B >" => chr(14), "\x1B ?" => chr(15), "\x1B!0" => chr(16), "\x1B!1" => chr(17), 

    116. 

  116.                 "\x1B!2" => chr(18), "\x1B!3" => chr(19), "\x1B!4" => chr(20), "\x1B!5" => chr(21), "\x1B!6" => chr(22), 

    117. 

  117.                 "\x1B!7" => chr(23), "\x1B!8" => chr(24), "\x1B!9" => chr(25), "\x1B!:" => chr(26), "\x1B!;" => chr(27), 

    118. 

  118.                 "\x1B!<" => chr(28), "\x1B!=" => chr(29), "\x1B!>" => chr(30), "\x1B!?" => chr(31), 

    119. 

  119.                 "\x1B'?" => chr(127), "\x1B(0" => '€', // 128 in CP1252
    120. 

  120. "\x1B(2" => '‚', // 130 in CP1252
    121. 

  121. "\x1B(3" => 'ƒ', // 131 in CP1252
    122. 

  122. "\x1B(4" => '„',  // 132 in CP1252
    123. 

  123.                 "\x1B(5" => '…', // 133 in CP1252
    124. 

  124. "\x1B(6" => '†', // 134 in CP1252
    125. 

  125. "\x1B(7" => '‡', // 135 in CP1252
    126. 

  126. "\x1B(8" => 'ˆ', // 136 in CP1252
    127. 

  127. "\x1B(9" => '‰',  // 137 in CP1252
    128. 

  128.                 "\x1B(:" => 'Ĺ ', // 138 in CP1252
    129. 

  129. "\x1B(;" => '‹', // 139 in CP1252
    130. 

  130. "\x1BNj" => 'Œ', // 140 in CP1252
    131. 

  131. "\x1B(>" => 'Ĺ˝', // 142 in CP1252
    132. 

  132. "\x1B)1" => '‘',  // 145 in CP1252
    133. 

  133.                 "\x1B)2" => '’', // 146 in CP1252
    134. 

  134. "\x1B)3" => '“', // 147 in CP1252
    135. 

  135. "\x1B)4" => '”', // 148 in CP1252
    136. 

  136. "\x1B)5" => '•', // 149 in CP1252
    137. 

  137. "\x1B)6" => '–',  // 150 in CP1252
    138. 

  138.                 "\x1B)7" => '—', // 151 in CP1252
    139. 

  139. "\x1B)8" => '˜', // 152 in CP1252
    140. 

  140. "\x1B)9" => '™', // 153 in CP1252
    141. 

  141. "\x1B):" => 'ĹĄ', // 154 in CP1252
    142. 

  142. "\x1B);" => '›',  // 155 in CP1252
    143. 

  143.                 "\x1BNz" => 'œ', // 156 in CP1252
    144. 

  144. "\x1B)>" => 'Ĺž', // 158 in CP1252
    145. 

  145. "\x1B)?" => 'Ÿ', // 159 in CP1252
    146. 

  146. "\x1B*0" => ' ', // 160 in CP1252
    147. 

  147. "\x1BN!" => 'ÂĄ',  // 161 in CP1252
    148. 

  148.                 "\x1BN\"" => '¢', // 162 in CP1252
    149. 

  149. "\x1BN#" => 'ÂŁ', // 163 in CP1252
    150. 

  150. "\x1BN(" => '¤', // 164 in CP1252
    151. 

  151. "\x1BN%" => 'ÂĽ', // 165 in CP1252
    152. 

  152. "\x1B*6" => 'ÂŚ',  // 166 in CP1252
    153. 

  153.                 "\x1BN'" => '§', // 167 in CP1252
    154. 

  154. "\x1BNH " => '¨', // 168 in CP1252
    155. 

  155. "\x1BNS" => 'Š', // 169 in CP1252
    156. 

  156. "\x1BNc" => 'ÂŞ', // 170 in CP1252
    157. 

  157. "\x1BN+" => 'ÂŤ',  // 171 in CP1252
    158. 

  158.                 "\x1B*<" => 'ÂŹ', // 172 in CP1252
    159. 

  159. "\x1B*=" => '­', // 173 in CP1252
    160. 

  160. "\x1BNR" => 'ÂŽ', // 174 in CP1252
    161. 

  161. "\x1B*?" => 'ÂŻ', // 175 in CP1252
    162. 

  162. "\x1BN0" => '°',  // 176 in CP1252
    163. 

  163.                 "\x1BN1" => 'Âą', // 177 in CP1252
    164. 

  164. "\x1BN2" => '²', // 178 in CP1252
    165. 

  165. "\x1BN3" => 'Âł', // 179 in CP1252
    166. 

  166. "\x1BNB " => '´', // 180 in CP1252
    167. 

  167. "\x1BN5" => 'Âľ',  // 181 in CP1252
    168. 

  168.                 "\x1BN6" => 'Âś', // 182 in CP1252
    169. 

  169. "\x1BN7" => '¡', // 183 in CP1252
    170. 

  170. "\x1B+8" => '¸', // 184 in CP1252
    171. 

  171. "\x1BNQ" => 'š', // 185 in CP1252
    172. 

  172. "\x1BNk" => 'Âş',  // 186 in CP1252
    173. 

  173.                 "\x1BN;" => 'Âť', // 187 in CP1252
    174. 

  174. "\x1BN<" => 'Âź', // 188 in CP1252
    175. 

  175. "\x1BN=" => '½', // 189 in CP1252
    176. 

  176. "\x1BN>" => 'ž', // 190 in CP1252
    177. 

  177. "\x1BN?" => 'Âż',  // 191 in CP1252
    178. 

  178.                 "\x1BNAA" => 'À', // 192 in CP1252
    179. 

  179. "\x1BNBA" => 'Á', // 193 in CP1252
    180. 

  180. "\x1BNCA" => 'Â', // 194 in CP1252
    181. 

  181. "\x1BNDA" => 'Ã', // 195 in CP1252
    182. 

  182. "\x1BNHA" => 'Ä',  // 196 in CP1252
    183. 

  183.                 "\x1BNJA" => 'Å', // 197 in CP1252
    184. 

  184. "\x1BNa" => 'Æ', // 198 in CP1252
    185. 

  185. "\x1BNKC" => 'Ç', // 199 in CP1252
    186. 

  186. "\x1BNAE" => 'È', // 200 in CP1252
    187. 

  187. "\x1BNBE" => 'É',  // 201 in CP1252
    188. 

  188.                 "\x1BNCE" => 'Ê', // 202 in CP1252
    189. 

  189. "\x1BNHE" => 'Ë', // 203 in CP1252
    190. 

  190. "\x1BNAI" => 'Ì', // 204 in CP1252
    191. 

  191. "\x1BNBI" => 'Í', // 205 in CP1252
    192. 

  192. "\x1BNCI" => 'Î',  // 206 in CP1252
    193. 

  193.                 "\x1BNHI" => 'Ï', // 207 in CP1252
    194. 

  194. "\x1BNb" => 'Ð', // 208 in CP1252
    195. 

  195. "\x1BNDN" => 'Ñ', // 209 in CP1252
    196. 

  196. "\x1BNAO" => 'Ò', // 210 in CP1252
    197. 

  197. "\x1BNBO" => 'Ó',  // 211 in CP1252
    198. 

  198.                 "\x1BNCO" => 'Ô', // 212 in CP1252
    199. 

  199. "\x1BNDO" => 'Õ', // 213 in CP1252
    200. 

  200. "\x1BNHO" => 'Ö', // 214 in CP1252
    201. 

  201. "\x1B-7" => '×', // 215 in CP1252
    202. 

  202. "\x1BNi" => 'Ø',  // 216 in CP1252
    203. 

  203.                 "\x1BNAU" => 'Ù', // 217 in CP1252
    204. 

  204. "\x1BNBU" => 'Ú', // 218 in CP1252
    205. 

  205. "\x1BNCU" => 'Û', // 219 in CP1252
    206. 

  206. "\x1BNHU" => 'Ü', // 220 in CP1252
    207. 

  207. "\x1B-=" => 'Ý',  // 221 in CP1252
    208. 

  208.                 "\x1BNl" => 'Þ', // 222 in CP1252
    209. 

  209. "\x1BN{" => 'ß', // 223 in CP1252
    210. 

  210. "\x1BNAa" => 'Ă ', // 224 in CP1252
    211. 

  211. "\x1BNBa" => 'ĂĄ', // 225 in CP1252
    212. 

  212. "\x1BNCa" => 'â',  // 226 in CP1252
    213. 

  213.                 "\x1BNDa" => 'ĂŁ', // 227 in CP1252
    214. 

  214. "\x1BNHa" => 'ä', // 228 in CP1252
    215. 

  215. "\x1BNJa" => 'ĂĽ', // 229 in CP1252
    216. 

  216. "\x1BNq" => 'ĂŚ', // 230 in CP1252
    217. 

  217. "\x1BNKc" => 'ç',  // 231 in CP1252
    218. 

  218.                 "\x1BNAe" => 'è', // 232 in CP1252
    219. 

  219. "\x1BNBe" => 'ĂŠ', // 233 in CP1252
    220. 

  220. "\x1BNCe" => 'ĂŞ', // 234 in CP1252
    221. 

  221. "\x1BNHe" => 'ĂŤ', // 235 in CP1252
    222. 

  222. "\x1BNAi" => 'ĂŹ',  // 236 in CP1252
    223. 

  223.                 "\x1BNBi" => 'Ă­', // 237 in CP1252
    224. 

  224. "\x1BNCi" => 'ĂŽ', // 238 in CP1252
    225. 

  225. "\x1BNHi" => 'ĂŻ', // 239 in CP1252
    226. 

  226. "\x1BNs" => 'Ă°', // 240 in CP1252
    227. 

  227. "\x1BNDn" => 'Ăą',  // 241 in CP1252
    228. 

  228.                 "\x1BNAo" => 'ò', // 242 in CP1252
    229. 

  229. "\x1BNBo" => 'Ăł', // 243 in CP1252
    230. 

  230. "\x1BNCo" => 'Ă´', // 244 in CP1252
    231. 

  231. "\x1BNDo" => 'Ăľ', // 245 in CP1252
    232. 

  232. "\x1BNHo" => 'Ăś',  // 246 in CP1252
    233. 

  233.                 "\x1B/7" => 'á', // 247 in CP1252
    234. 

  234. "\x1BNy" => 'ø', // 248 in CP1252
    235. 

  235. "\x1BNAu" => 'Ăš', // 249 in CP1252
    236. 

  236. "\x1BNBu" => 'Ăş', // 250 in CP1252
    237. 

  237. "\x1BNCu" => 'Ăť',  // 251 in CP1252
    238. 

  238.                 "\x1BNHu" => 'Ăź', // 252 in CP1252
    239. 

  239. "\x1B/=" => 'Ă˝', // 253 in CP1252
    240. 

  240. "\x1BN|" => 'Ăž', // 254 in CP1252
    241. 

  241. "\x1BNHy" => 'Ăż')// 255 in CP1252
    242. 

  242. ;

    243. 

  243.     }

    244. 

  244. 

    245. 

  245.     /**
    246. 

  246.      * Get whether mbstring extension is available
    247. 

  247.      *
    248. 

  248.      * @return boolean
    249. 

  249.      */

    250. 

  250.     public static function getIsMbstringEnabled()

    251. 

  251.     {

    252. 

  252.         if (isset(self :: $_isMbstringEnabled))

    253. 

  253.         {

    254. 

  254.             return self :: $_isMbstringEnabled;

    255. 

  255.         }

    256. 

  256.         

    257. 

  257.         self :: $_isMbstringEnabled = function_exists('mb_convert_encoding') ? true : false;

    258. 

  258.         

    259. 

  259.         return self :: $_isMbstringEnabled;

    260. 

  260.     }

    261. 

  261. 

    262. 

  262.     /**
    263. 

  263.      * Get whether iconv extension is available
    264. 

  264.      *
    265. 

  265.      * @return boolean
    266. 

  266.      */

    267. 

  267.     public static function getIsIconvEnabled()

    268. 

  268.     {

    269. 

  269.         if (isset(self :: $_isIconvEnabled))

    270. 

  270.         {

    271. 

  271.             return self :: $_isIconvEnabled;

    272. 

  272.         }

    273. 

  273.         

    274. 

  274.         // Fail if iconv doesn't exist
    275. 

  275.         if (! function_exists('iconv'))

    276. 

  276.         {

    277. 

  277.             self :: $_isIconvEnabled = false;

    278. 

  278.             return false;

    279. 

  279.         }

    280. 

  280.         

    281. 

  281.         // Sometimes iconv is not working, and e.g. iconv('UTF-8', 'UTF-16LE', 'x') just returns false,
    282. 

  282.         if (! @iconv('UTF-8', 'UTF-16LE', 'x'))

    283. 

  283.         {

    284. 

  284.             self :: $_isIconvEnabled = false;

    285. 

  285.             return false;

    286. 

  286.         }

    287. 

  287.         

    288. 

  288.         // Sometimes iconv_substr('A', 0, 1, 'UTF-8') just returns false in PHP 5.2.0
    289. 

  289.         // we cannot use iconv in that case either (http://bugs.php.net/bug.php?id=37773)
    290. 

  290.         if (! @iconv_substr('A', 0, 1, 'UTF-8'))

    291. 

  291.         {

    292. 

  292.             self :: $_isIconvEnabled = false;

    293. 

  293.             return false;

    294. 

  294.         }

    295. 

  295.         

    296. 

  296.         // CUSTOM: IBM AIX iconv() does not work
    297. 

  297.         if (defined('PHP_OS') && @stristr(PHP_OS, 'AIX') && defined('ICONV_IMPL') && (@strcasecmp(ICONV_IMPL, 'unknown') == 0) && defined('ICONV_VERSION') && (@strcasecmp(ICONV_VERSION, 'unknown') == 0))

    298. 

  298.         {

    299. 

  299.             self :: $_isIconvEnabled = false;

    300. 

  300.             return false;

    301. 

  301.         }

    302. 

  302.         

    303. 

  303.         // If we reach here no problems were detected with iconv
    304. 

  304.         self :: $_isIconvEnabled = true;

    305. 

  305.         return true;

    306. 

  306.     }

    307. 

  307. 

    308. 

  308.     public static function buildCharacterSets()

    309. 

  309.     {

    310. 

  310.         if (empty(self :: $_controlCharacters))

    311. 

  311.         {

    312. 

  312.             self :: _buildControlCharacters();

    313. 

  313.         }

    314. 

  314.         if (empty(self :: $_SYLKCharacters))

    315. 

  315.         {

    316. 

  316.             self :: _buildSYLKCharacters();

    317. 

  317.         }

    318. 

  318.     }

    319. 

  319. 

    320. 

  320.     /**
    321. 

  321.      * Convert from OpenXML escaped control character to PHP control character
    322. 

  322.      *
    323. 

  323.      * Excel 2007 team:
    324. 

  324.      * ----------------
    325. 

  325.      * That's correct, control characters are stored directly in the shared-strings table.
    326. 

  326.      * We do encode characters that cannot be represented in XML using the following escape sequence:
    327. 

  327.      * _xHHHH_ where H represents a hexadecimal character in the character's value...
    328. 

  328.      * So you could end up with something like _x0008_ in a string (either in a cell value (<v>)
    329. 

  329.      * element or in the shared string <t> element.
    330. 

  330.      *
    331. 

  331.      * @param 	string	$value	Value to unescape
    332. 

  332.      * @return 	string
    333. 

  333.      */

    334. 

  334.     public static function ControlCharacterOOXML2PHP($value = '')

    335. 

  335.     {

    336. 

  336.         return str_replace(array_keys(self :: $_controlCharacters), array_values(self :: $_controlCharacters), $value);

    337. 

  337.     }

    338. 

  338. 

    339. 

  339.     /**
    340. 

  340.      * Convert from PHP control character to OpenXML escaped control character
    341. 

  341.      *
    342. 

  342.      * Excel 2007 team:
    343. 

  343.      * ----------------
    344. 

  344.      * That's correct, control characters are stored directly in the shared-strings table.
    345. 

  345.      * We do encode characters that cannot be represented in XML using the following escape sequence:
    346. 

  346.      * _xHHHH_ where H represents a hexadecimal character in the character's value...
    347. 

  347.      * So you could end up with something like _x0008_ in a string (either in a cell value (<v>)
    348. 

  348.      * element or in the shared string <t> element.
    349. 

  349.      *
    350. 

  350.      * @param 	string	$value	Value to escape
    351. 

  351.      * @return 	string
    352. 

  352.      */

    353. 

  353.     public static function ControlCharacterPHP2OOXML($value = '')

    354. 

  354.     {

    355. 

  355.         return str_replace(array_values(self :: $_controlCharacters), array_keys(self :: $_controlCharacters), $value);

    356. 

  356.     }

    357. 

  357. 

    358. 

  358.     /**
    359. 

  359.      * Try to sanitize UTF8, stripping invalid byte sequences. Not perfect. Does not surrogate characters.
    360. 

  360.      *
    361. 

  361.      * @param string $value
    362. 

  362.      * @return string
    363. 

  363.      */

    364. 

  364.     public static function SanitizeUTF8($value)

    365. 

  365.     {

    366. 

  366.         if (self :: getIsIconvEnabled())

    367. 

  367.         {

    368. 

  368.             $value = @iconv('UTF-8', 'UTF-8', $value);

    369. 

  369.             return $value;

    370. 

  370.         }

    371. 

  371.         

    372. 

  372.         if (self :: getIsMbstringEnabled())

    373. 

  373.         {

    374. 

  374.             $value = mb_convert_encoding($value, 'UTF-8', 'UTF-8');

    375. 

  375.             return $value;

    376. 

  376.         }

    377. 

  377.         

    378. 

  378.         // else, no conversion
    379. 

  379.         return $value;

    380. 

  380.     }

    381. 

  381. 

    382. 

  382.     /**
    383. 

  383.      * Check if a string contains UTF8 data
    384. 

  384.      *
    385. 

  385.      * @param string $value
    386. 

  386.      * @return boolean
    387. 

  387.      */

    388. 

  388.     public static function IsUTF8($value = '')

    389. 

  389.     {

    390. 

  390.         return utf8_encode(utf8_decode($value)) === $value;

    391. 

  391.     }

    392. 

  392. 

    393. 

  393.     /**
    394. 

  394.      * Formats a numeric value as a string for output in various output writers forcing
    395. 

  395.      * point as decimal separator in case locale is other than English.
    396. 

  396.      *
    397. 

  397.      * @param mixed $value
    398. 

  398.      * @return string
    399. 

  399.      */

    400. 

  400.     public static function FormatNumber($value)

    401. 

  401.     {

    402. 

  402.         if (is_float($value))

    403. 

  403.         {

    404. 

  404.             return str_replace(',', '.', $value);

    405. 

  405.         }

    406. 

  406.         return (string) $value;

    407. 

  407.     }

    408. 

  408. 

    409. 

  409.     /**
    410. 

  410.      * Converts a UTF-8 string into BIFF8 Unicode string data (8-bit string length)
    411. 

  411.      * Writes the string using uncompressed notation, no rich text, no Asian phonetics
    412. 

  412.      * If mbstring extension is not available, ASCII is assumed, and compressed notation is used
    413. 

  413.      * although this will give wrong results for non-ASCII strings
    414. 

  414.      * see OpenOffice.org's Documentation of the Microsoft Excel File Format, sect. 2.5.3
    415. 

  415.      *
    416. 

  416.      * @param string $value UTF-8 encoded string
    417. 

  417.      * @return string
    418. 

  418.      */

    419. 

  419.     public static function UTF8toBIFF8UnicodeShort($value)

    420. 

  420.     {

    421. 

  421.         // character count
    422. 

  422.         $ln = self :: CountCharacters($value, 'UTF-8');

    423. 

  423.         

    424. 

  424.         // option flags
    425. 

  425.         $opt = (self :: getIsIconvEnabled() || self :: getIsMbstringEnabled()) ? 0x0001 : 0x0000;

    426. 

  426.         

    427. 

  427.         // characters
    428. 

  428.         $chars = self :: ConvertEncoding($value, 'UTF-16LE', 'UTF-8');

    429. 

  429.         

    430. 

  430.         $data = pack('CC', $ln, $opt) . $chars;

    431. 

  431.         return $data;

    432. 

  432.     }

    433. 

  433. 

    434. 

  434.     /**
    435. 

  435.      * Converts a UTF-8 string into BIFF8 Unicode string data (16-bit string length)
    436. 

  436.      * Writes the string using uncompressed notation, no rich text, no Asian phonetics
    437. 

  437.      * If mbstring extension is not available, ASCII is assumed, and compressed notation is used
    438. 

  438.      * although this will give wrong results for non-ASCII strings
    439. 

  439.      * see OpenOffice.org's Documentation of the Microsoft Excel File Format, sect. 2.5.3
    440. 

  440.      *
    441. 

  441.      * @param string $value UTF-8 encoded string
    442. 

  442.      * @return string
    443. 

  443.      */

    444. 

  444.     public static function UTF8toBIFF8UnicodeLong($value)

    445. 

  445.     {

    446. 

  446.         // character count
    447. 

  447.         $ln = self :: CountCharacters($value, 'UTF-8');

    448. 

  448.         

    449. 

  449.         // option flags
    450. 

  450.         $opt = (self :: getIsIconvEnabled() || self :: getIsMbstringEnabled()) ? 0x0001 : 0x0000;

    451. 

  451.         

    452. 

  452.         // characters
    453. 

  453.         $chars = self :: ConvertEncoding($value, 'UTF-16LE', 'UTF-8');

    454. 

  454.         

    455. 

  455.         $data = pack('vC', $ln, $opt) . $chars;

    456. 

  456.         return $data;

    457. 

  457.     }

    458. 

  458. 

    459. 

  459.     /**
    460. 

  460.      * Convert string from one encoding to another. First try iconv, then mbstring, or no convertion
    461. 

  461.      *
    462. 

  462.      * @param string $value
    463. 

  463.      * @param string $to Encoding to convert to, e.g. 'UTF-8'
    464. 

  464.      * @param string $from Encoding to convert from, e.g. 'UTF-16LE'
    465. 

  465.      * @return string
    466. 

  466.      */

    467. 

  467.     public static function ConvertEncoding($value, $to, $from)

    468. 

  468.     {

    469. 

  469.         if (self :: getIsIconvEnabled())

    470. 

  470.         {

    471. 

  471.             $value = iconv($from, $to, $value);

    472. 

  472.             return $value;

    473. 

  473.         }

    474. 

  474.         

    475. 

  475.         if (self :: getIsMbstringEnabled())

    476. 

  476.         {

    477. 

  477.             $value = mb_convert_encoding($value, $to, $from);

    478. 

  478.             return $value;

    479. 

  479.         }

    480. 

  480.         if ($from == 'UTF-16LE')

    481. 

  481.         {

    482. 

  482.             return self :: utf16_decode($value, false);

    483. 

  483.         }

    484. 

  484.         else 

    485. 

  485.             if ($from == 'UTF-16BE')

    486. 

  486.             {

    487. 

  487.                 return self :: utf16_decode($value);

    488. 

  488.             }

    489. 

  489.         // else, no conversion
    490. 

  490.         return $value;

    491. 

  491.     }

    492. 

  492. 

    493. 

  493.     /**
    494. 

  494.      * Decode UTF-16 encoded strings.
    495. 

  495.      *
    496. 

  496.      * Can handle both BOM'ed data and un-BOM'ed data.
    497. 

  497.      * Assumes Big-Endian byte order if no BOM is available.
    498. 

  498.      * This function was taken from http://php.net/manual/en/function.utf8-decode.php
    499. 

  499.      * and $bom_be parameter added.
    500. 

  500.      *
    501. 

  501.      * @param   string  $str  UTF-16 encoded data to decode.
    502. 

  502.      * @return  string  UTF-8 / ISO encoded data.
    503. 

  503.      * @access  public
    504. 

  504.      * @version 0.2 / 2010-05-13
    505. 

  505.      * @author  Rasmus Andersson {@link http://rasmusandersson.se/}
    506. 

  506.      * @author vadik56
    507. 

  507.      */

    508. 

  508.     public static function utf16_decode($str, $bom_be = true)

    509. 

  509.     {

    510. 

  510.         if (strlen($str) < 2)

    511. 

  511.             return $str;

    512. 

  512.         $c0 = ord($str{0});

    513. 

  513.         $c1 = ord($str{1});

    514. 

  514.         if ($c0 == 0xfe && $c1 == 0xff)

    515. 

  515.         {

    516. 

  516.             $str = substr($str, 2);

    517. 

  517.         }

    518. 

  518.         elseif ($c0 == 0xff && $c1 == 0xfe)

    519. 

  519.         {

    520. 

  520.             $str = substr($str, 2);

    521. 

  521.             $bom_be = false;

    522. 

  522.         }

    523. 

  523.         $len = strlen($str);

    524. 

  524.         $newstr = '';

    525. 

  525.         for($i = 0; $i < $len; $i += 2)

    526. 

  526.         {

    527. 

  527.             if ($bom_be)

    528. 

  528.             {

    529. 

  529.                 $val = ord($str{$i}) << 4;

    530. 

  530.                 $val += ord($str{$i + 1});

    531. 

  531.             }

    532. 

  532.             else

    533. 

  533.             {

    534. 

  534.                 $val = ord($str{$i + 1}) << 4;

    535. 

  535.                 $val += ord($str{$i});

    536. 

  536.             }

    537. 

  537.             $newstr .= ($val == 0x228) ? "\n" : chr($val);

    538. 

  538.         }

    539. 

  539.         return $newstr;

    540. 

  540.     }

    541. 

  541. 

    542. 

  542.     /**
    543. 

  543.      * Get character count. First try mbstring, then iconv, finally strlen
    544. 

  544.      *
    545. 

  545.      * @param string $value
    546. 

  546.      * @param string $enc Encoding
    547. 

  547.      * @return int Character count
    548. 

  548.      */

    549. 

  549.     public static function CountCharacters($value, $enc = 'UTF-8')

    550. 

  550.     {

    551. 

  551.         if (self :: getIsIconvEnabled())

    552. 

  552.         {

    553. 

  553.             return iconv_strlen($value, $enc);

    554. 

  554.         }

    555. 

  555.         

    556. 

  556.         if (self :: getIsMbstringEnabled())

    557. 

  557.         {

    558. 

  558.             return mb_strlen($value, $enc);

    559. 

  559.         }

    560. 

  560.         

    561. 

  561.         // else strlen
    562. 

  562.         return strlen($value);

    563. 

  563.     }

    564. 

  564. 

    565. 

  565.     /**
    566. 

  566.      * Get a substring of a UTF-8 encoded string
    567. 

  567.      *
    568. 

  568.      * @param string $pValue UTF-8 encoded string
    569. 

  569.      * @param int $start Start offset
    570. 

  570.      * @param int $length Maximum number of characters in substring
    571. 

  571.      * @return string
    572. 

  572.      */

    573. 

  573.     public static function Substring($pValue = '', $pStart = 0, $pLength = 0)

    574. 

  574.     {

    575. 

  575.         if (self :: getIsIconvEnabled())

    576. 

  576.         {

    577. 

  577.             return iconv_substr($pValue, $pStart, $pLength, 'UTF-8');

    578. 

  578.         }

    579. 

  579.         

    580. 

  580.         if (self :: getIsMbstringEnabled())

    581. 

  581.         {

    582. 

  582.             return mb_substr($pValue, $pStart, $pLength, 'UTF-8');

    583. 

  583.         }

    584. 

  584.         

    585. 

  585.         // else substr
    586. 

  586.         return substr($pValue, $pStart, $pLength);

    587. 

  587.     }

    588. 

  588. 

    589. 

  589.     /**
    590. 

  590.      * Identify whether a string contains a fractional numeric value,
    591. 

  591.      * and convert it to a numeric if it is
    592. 

  592.      *
    593. 

  593.      * @param string &$operand string value to test
    594. 

  594.      * @return boolean
    595. 

  595.      */

    596. 

  596.     public static function convertToNumberIfFraction(&$operand)

    597. 

  597.     {

    598. 

  598.         if (preg_match('/^' . self :: STRING_REGEXP_FRACTION . '$/i', $operand, $match))

    599. 

  599.         {

    600. 

  600.             $sign = ($match[1] == '-') ? '-' : '+';

    601. 

  601.             $fractionFormula = '=' . $sign . $match[2] . $sign . $match[3];

    602. 

  602.             $operand = PHPExcel_Calculation :: getInstance()->_calculateFormulaValue($fractionFormula);

    603. 

  603.             return true;

    604. 

  604.         }

    605. 

  605.         return false;

    606. 

  606.     } //	function convertToNumberIfFraction()
    607. 

  607. 

    608. 

  608.     

    609. 

  609.     /**
    610. 

  610.      * Get the decimal separator. If it has not yet been set explicitly, try to obtain number
    611. 

  611.      * formatting information from locale.
    612. 

  612.      *
    613. 

  613.      * @return string
    614. 

  614.      */

    615. 

  615.     public static function getDecimalSeparator()

    616. 

  616.     {

    617. 

  617.         if (! isset(self :: $_decimalSeparator))

    618. 

  618.         {

    619. 

  619.             $localeconv = localeconv();

    620. 

  620.             self :: $_decimalSeparator = $localeconv['decimal_point'] != '' ? $localeconv['decimal_point'] : $localeconv['mon_decimal_point'];

    621. 

  621.             

    622. 

  622.             if (self :: $_decimalSeparator == '')

    623. 

  623.             {

    624. 

  624.                 // Default to .
    625. 

  625.                 self :: $_decimalSeparator = '.';

    626. 

  626.             }

    627. 

  627.         }

    628. 

  628.         return self :: $_decimalSeparator;

    629. 

  629.     }

    630. 

  630. 

    631. 

  631.     /**
    632. 

  632.      * Set the decimal separator. Only used by PHPExcel_Style_NumberFormat::toFormattedString()
    633. 

  633.      * to format output by PHPExcel_Writer_HTML and PHPExcel_Writer_PDF
    634. 

  634.      *
    635. 

  635.      * @param string $pValue Character for decimal separator
    636. 

  636.      */

    637. 

  637.     public static function setDecimalSeparator($pValue = '.')

    638. 

  638.     {

    639. 

  639.         self :: $_decimalSeparator = $pValue;

    640. 

  640.     }

    641. 

  641. 

    642. 

  642.     /**
    643. 

  643.      * Get the thousands separator. If it has not yet been set explicitly, try to obtain number
    644. 

  644.      * formatting information from locale.
    645. 

  645.      *
    646. 

  646.      * @return string
    647. 

  647.      */

    648. 

  648.     public static function getThousandsSeparator()

    649. 

  649.     {

    650. 

  650.         if (! isset(self :: $_thousandsSeparator))

    651. 

  651.         {

    652. 

  652.             $localeconv = localeconv();

    653. 

  653.             self :: $_thousandsSeparator = $localeconv['thousands_sep'] != '' ? $localeconv['thousands_sep'] : $localeconv['mon_thousands_sep'];

    654. 

  654.         }

    655. 

  655.         return self :: $_thousandsSeparator;

    656. 

  656.     }

    657. 

  657. 

    658. 

  658.     /**
    659. 

  659.      * Set the thousands separator. Only used by PHPExcel_Style_NumberFormat::toFormattedString()
    660. 

  660.      * to format output by PHPExcel_Writer_HTML and PHPExcel_Writer_PDF
    661. 

  661.      *
    662. 

  662.      * @param string $pValue Character for thousands separator
    663. 

  663.      */

    664. 

  664.     public static function setThousandsSeparator($pValue = ',')

    665. 

  665.     {

    666. 

  666.         self :: $_thousandsSeparator = $pValue;

    667. 

  667.     }

    668. 

  668. 

    669. 

  669.     /**
    670. 

  670.      * Get the currency code. If it has not yet been set explicitly, try to obtain the
    671. 

  671.      * symbol information from locale.
    672. 

  672.      *
    673. 

  673.      * @return string
    674. 

  674.      */

    675. 

  675.     public static function getCurrencyCode()

    676. 

  676.     {

    677. 

  677.         if (! isset(self :: $_currencyCode))

    678. 

  678.         {

    679. 

  679.             $localeconv = localeconv();

    680. 

  680.             self :: $_currencyCode = $localeconv['currency_symbol'] != '' ? $localeconv['currency_symbol'] : $localeconv['int_curr_symbol'];

    681. 

  681.             

    682. 

  682.             if (self :: $_currencyCode == '')

    683. 

  683.             {

    684. 

  684.                 // Default to $
    685. 

  685.                 self :: $_currencyCode = '$';

    686. 

  686.             }

    687. 

  687.         }

    688. 

  688.         return self :: $_currencyCode;

    689. 

  689.     }

    690. 

  690. 

    691. 

  691.     /**
    692. 

  692.      * Set the currency code. Only used by PHPExcel_Style_NumberFormat::toFormattedString()
    693. 

  693.      * to format output by PHPExcel_Writer_HTML and PHPExcel_Writer_PDF
    694. 

  694.      *
    695. 

  695.      * @param string $pValue Character for currency code
    696. 

  696.      */

    697. 

  697.     public static function setCurrencyCode($pValue = '$')

    698. 

  698.     {

    699. 

  699.         self :: $_currencyCode = $pValue;

    700. 

  700.     }

    701. 

  701. 

    702. 

  702.     /**
    703. 

  703.      * Convert SYLK encoded string to UTF-8
    704. 

  704.      *
    705. 

  705.      * @param string $pValue
    706. 

  706.      * @return string UTF-8 encoded string
    707. 

  707.      */

    708. 

  708.     public static function SYLKtoUTF8($pValue = '')

    709. 

  709.     {

    710. 

  710.         // If there is no escape character in the string there is nothing to do
    711. 

  711.         if (strpos($pValue, '') === false)

    712. 

  712.         {

    713. 

  713.             return $pValue;

    714. 

  714.         }

    715. 

  715.         

    716. 

  716.         foreach (self :: $_SYLKCharacters as $k => $v)

    717. 

  717.         {

    718. 

  718.             $pValue = str_replace($k, $v, $pValue);

    719. 

  719.         }

    720. 

  720.         

    721. 

  721.         return $pValue;

    722. 

  722.     }

    723. 

  723. 

    724. 

  724. }
    725. 

  725.