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1 <?php 2 /** 3 * Class for parsing Excel formulas 4 * 5 * License Information: 6 * 7 * Spreadsheet_Excel_Writer: A library for generating Excel Spreadsheets 8 * Copyright (c) 2002-2003 Xavier Noguer xnoguer@rezebra.com 9 * 10 * This library is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU Lesser General Public 12 * License as published by the Free Software Foundation; either 13 * version 2.1 of the License, or (at your option) any later version. 14 * 15 * This library is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * Lesser General Public License for more details. 19 * 20 * You should have received a copy of the GNU Lesser General Public 21 * License along with this library; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23 */ 24 25 /** 26 * @const SPREADSHEET_EXCEL_WRITER_ADD token identifier for character "+" 27 */ 28 define('SPREADSHEET_EXCEL_WRITER_ADD',"+"); 29 30 /** 31 * @const SPREADSHEET_EXCEL_WRITER_SUB token identifier for character "-" 32 */ 33 define('SPREADSHEET_EXCEL_WRITER_SUB',"-"); 34 35 /** 36 * @const SPREADSHEET_EXCEL_WRITER_MUL token identifier for character "*" 37 */ 38 define('SPREADSHEET_EXCEL_WRITER_MUL',"*"); 39 40 /** 41 * @const SPREADSHEET_EXCEL_WRITER_DIV token identifier for character "/" 42 */ 43 define('SPREADSHEET_EXCEL_WRITER_DIV',"/"); 44 45 /** 46 * @const SPREADSHEET_EXCEL_WRITER_OPEN token identifier for character "(" 47 */ 48 define('SPREADSHEET_EXCEL_WRITER_OPEN',"("); 49 50 /** 51 * @const SPREADSHEET_EXCEL_WRITER_CLOSE token identifier for character ")" 52 */ 53 define('SPREADSHEET_EXCEL_WRITER_CLOSE',")"); 54 55 /** 56 * @const SPREADSHEET_EXCEL_WRITER_COMA token identifier for character "," 57 */ 58 define('SPREADSHEET_EXCEL_WRITER_COMA',","); 59 60 /** 61 * @const SPREADSHEET_EXCEL_WRITER_SEMICOLON token identifier for character ";" 62 */ 63 define('SPREADSHEET_EXCEL_WRITER_SEMICOLON',";"); 64 65 /** 66 * @const SPREADSHEET_EXCEL_WRITER_GT token identifier for character ">" 67 */ 68 define('SPREADSHEET_EXCEL_WRITER_GT',">"); 69 70 /** 71 * @const SPREADSHEET_EXCEL_WRITER_LT token identifier for character "<" 72 */ 73 define('SPREADSHEET_EXCEL_WRITER_LT',"<"); 74 75 /** 76 * @const SPREADSHEET_EXCEL_WRITER_LE token identifier for character "<=" 77 */ 78 define('SPREADSHEET_EXCEL_WRITER_LE',"<="); 79 80 /** 81 * @const SPREADSHEET_EXCEL_WRITER_GE token identifier for character ">=" 82 */ 83 define('SPREADSHEET_EXCEL_WRITER_GE',">="); 84 85 /** 86 * @const SPREADSHEET_EXCEL_WRITER_EQ token identifier for character "=" 87 */ 88 define('SPREADSHEET_EXCEL_WRITER_EQ',"="); 89 90 /** 91 * @const SPREADSHEET_EXCEL_WRITER_NE token identifier for character "<>" 92 */ 93 define('SPREADSHEET_EXCEL_WRITER_NE',"<>"); 94 95 96 require_once ('PEAR.php'); 97 98 /** 99 * Class for parsing Excel formulas 100 * 101 * @author Xavier Noguer <xnoguer@rezebra.com> 102 * @category FileFormats 103 * @package Spreadsheet_Excel_Writer 104 */ 105 106 class Spreadsheet_Excel_Writer_Parser extends PEAR 107 { 108 /** 109 * The index of the character we are currently looking at 110 * @var integer 111 */ 112 var $_current_char; 113 114 /** 115 * The token we are working on. 116 * @var string 117 */ 118 var $_current_token; 119 120 /** 121 * The formula to parse 122 * @var string 123 */ 124 var $_formula; 125 126 /** 127 * The character ahead of the current char 128 * @var string 129 */ 130 var $_lookahead; 131 132 /** 133 * The parse tree to be generated 134 * @var string 135 */ 136 var $_parse_tree; 137 138 /** 139 * The byte order. 1 => big endian, 0 => little endian. 140 * @var integer 141 */ 142 var $_byte_order; 143 144 /** 145 * Array of external sheets 146 * @var array 147 */ 148 var $_ext_sheets; 149 150 /** 151 * Array of sheet references in the form of REF structures 152 * @var array 153 */ 154 var $_references; 155 156 /** 157 * The BIFF version for the workbook 158 * @var integer 159 */ 160 var $_BIFF_version; 161 162 /** 163 * The class constructor 164 * 165 * @param integer $byte_order The byte order (Little endian or Big endian) of the architecture 166 (optional). 1 => big endian, 0 (default) little endian. 167 */ 168 function Spreadsheet_Excel_Writer_Parser($byte_order, $biff_version) 169 { 170 $this->_current_char = 0; 171 $this->_BIFF_version = $biff_version; 172 $this->_current_token = ''; // The token we are working on. 173 $this->_formula = ""; // The formula to parse. 174 $this->_lookahead = ''; // The character ahead of the current char. 175 $this->_parse_tree = ''; // The parse tree to be generated. 176 $this->_initializeHashes(); // Initialize the hashes: ptg's and function's ptg's 177 $this->_byte_order = $byte_order; // Little Endian or Big Endian 178 $this->_ext_sheets = array(); 179 $this->_references = array(); 180 } 181 182 /** 183 * Initialize the ptg and function hashes. 184 * 185 * @access private 186 */ 187 function _initializeHashes() 188 { 189 // The Excel ptg indices 190 $this->ptg = array( 191 'ptgExp' => 0x01, 192 'ptgTbl' => 0x02, 193 'ptgAdd' => 0x03, 194 'ptgSub' => 0x04, 195 'ptgMul' => 0x05, 196 'ptgDiv' => 0x06, 197 'ptgPower' => 0x07, 198 'ptgConcat' => 0x08, 199 'ptgLT' => 0x09, 200 'ptgLE' => 0x0A, 201 'ptgEQ' => 0x0B, 202 'ptgGE' => 0x0C, 203 'ptgGT' => 0x0D, 204 'ptgNE' => 0x0E, 205 'ptgIsect' => 0x0F, 206 'ptgUnion' => 0x10, 207 'ptgRange' => 0x11, 208 'ptgUplus' => 0x12, 209 'ptgUminus' => 0x13, 210 'ptgPercent' => 0x14, 211 'ptgParen' => 0x15, 212 'ptgMissArg' => 0x16, 213 'ptgStr' => 0x17, 214 'ptgAttr' => 0x19, 215 'ptgSheet' => 0x1A, 216 'ptgEndSheet' => 0x1B, 217 'ptgErr' => 0x1C, 218 'ptgBool' => 0x1D, 219 'ptgInt' => 0x1E, 220 'ptgNum' => 0x1F, 221 'ptgArray' => 0x20, 222 'ptgFunc' => 0x21, 223 'ptgFuncVar' => 0x22, 224 'ptgName' => 0x23, 225 'ptgRef' => 0x24, 226 'ptgArea' => 0x25, 227 'ptgMemArea' => 0x26, 228 'ptgMemErr' => 0x27, 229 'ptgMemNoMem' => 0x28, 230 'ptgMemFunc' => 0x29, 231 'ptgRefErr' => 0x2A, 232 'ptgAreaErr' => 0x2B, 233 'ptgRefN' => 0x2C, 234 'ptgAreaN' => 0x2D, 235 'ptgMemAreaN' => 0x2E, 236 'ptgMemNoMemN' => 0x2F, 237 'ptgNameX' => 0x39, 238 'ptgRef3d' => 0x3A, 239 'ptgArea3d' => 0x3B, 240 'ptgRefErr3d' => 0x3C, 241 'ptgAreaErr3d' => 0x3D, 242 'ptgArrayV' => 0x40, 243 'ptgFuncV' => 0x41, 244 'ptgFuncVarV' => 0x42, 245 'ptgNameV' => 0x43, 246 'ptgRefV' => 0x44, 247 'ptgAreaV' => 0x45, 248 'ptgMemAreaV' => 0x46, 249 'ptgMemErrV' => 0x47, 250 'ptgMemNoMemV' => 0x48, 251 'ptgMemFuncV' => 0x49, 252 'ptgRefErrV' => 0x4A, 253 'ptgAreaErrV' => 0x4B, 254 'ptgRefNV' => 0x4C, 255 'ptgAreaNV' => 0x4D, 256 'ptgMemAreaNV' => 0x4E, 257 'ptgMemNoMemN' => 0x4F, 258 'ptgFuncCEV' => 0x58, 259 'ptgNameXV' => 0x59, 260 'ptgRef3dV' => 0x5A, 261 'ptgArea3dV' => 0x5B, 262 'ptgRefErr3dV' => 0x5C, 263 'ptgAreaErr3d' => 0x5D, 264 'ptgArrayA' => 0x60, 265 'ptgFuncA' => 0x61, 266 'ptgFuncVarA' => 0x62, 267 'ptgNameA' => 0x63, 268 'ptgRefA' => 0x64, 269 'ptgAreaA' => 0x65, 270 'ptgMemAreaA' => 0x66, 271 'ptgMemErrA' => 0x67, 272 'ptgMemNoMemA' => 0x68, 273 'ptgMemFuncA' => 0x69, 274 'ptgRefErrA' => 0x6A, 275 'ptgAreaErrA' => 0x6B, 276 'ptgRefNA' => 0x6C, 277 'ptgAreaNA' => 0x6D, 278 'ptgMemAreaNA' => 0x6E, 279 'ptgMemNoMemN' => 0x6F, 280 'ptgFuncCEA' => 0x78, 281 'ptgNameXA' => 0x79, 282 'ptgRef3dA' => 0x7A, 283 'ptgArea3dA' => 0x7B, 284 'ptgRefErr3dA' => 0x7C, 285 'ptgAreaErr3d' => 0x7D 286 ); 287 288 // Thanks to Michael Meeks and Gnumeric for the initial arg values. 289 // 290 // The following hash was generated by "function_locale.pl" in the distro. 291 // Refer to function_locale.pl for non-English function names. 292 // 293 // The array elements are as follow: 294 // ptg: The Excel function ptg code. 295 // args: The number of arguments that the function takes: 296 // >=0 is a fixed number of arguments. 297 // -1 is a variable number of arguments. 298 // class: The reference, value or array class of the function args. 299 // vol: The function is volatile. 300 // 301 $this->_functions = array( 302 // function ptg args class vol 303 'COUNT' => array( 0, -1, 0, 0 ), 304 'IF' => array( 1, -1, 1, 0 ), 305 'ISNA' => array( 2, 1, 1, 0 ), 306 'ISERROR' => array( 3, 1, 1, 0 ), 307 'SUM' => array( 4, -1, 0, 0 ), 308 'AVERAGE' => array( 5, -1, 0, 0 ), 309 'MIN' => array( 6, -1, 0, 0 ), 310 'MAX' => array( 7, -1, 0, 0 ), 311 'ROW' => array( 8, -1, 0, 0 ), 312 'COLUMN' => array( 9, -1, 0, 0 ), 313 'NA' => array( 10, 0, 0, 0 ), 314 'NPV' => array( 11, -1, 1, 0 ), 315 'STDEV' => array( 12, -1, 0, 0 ), 316 'DOLLAR' => array( 13, -1, 1, 0 ), 317 'FIXED' => array( 14, -1, 1, 0 ), 318 'SIN' => array( 15, 1, 1, 0 ), 319 'COS' => array( 16, 1, 1, 0 ), 320 'TAN' => array( 17, 1, 1, 0 ), 321 'ATAN' => array( 18, 1, 1, 0 ), 322 'PI' => array( 19, 0, 1, 0 ), 323 'SQRT' => array( 20, 1, 1, 0 ), 324 'EXP' => array( 21, 1, 1, 0 ), 325 'LN' => array( 22, 1, 1, 0 ), 326 'LOG10' => array( 23, 1, 1, 0 ), 327 'ABS' => array( 24, 1, 1, 0 ), 328 'INT' => array( 25, 1, 1, 0 ), 329 'SIGN' => array( 26, 1, 1, 0 ), 330 'ROUND' => array( 27, 2, 1, 0 ), 331 'LOOKUP' => array( 28, -1, 0, 0 ), 332 'INDEX' => array( 29, -1, 0, 1 ), 333 'REPT' => array( 30, 2, 1, 0 ), 334 'MID' => array( 31, 3, 1, 0 ), 335 'LEN' => array( 32, 1, 1, 0 ), 336 'VALUE' => array( 33, 1, 1, 0 ), 337 'TRUE' => array( 34, 0, 1, 0 ), 338 'FALSE' => array( 35, 0, 1, 0 ), 339 'AND' => array( 36, -1, 0, 0 ), 340 'OR' => array( 37, -1, 0, 0 ), 341 'NOT' => array( 38, 1, 1, 0 ), 342 'MOD' => array( 39, 2, 1, 0 ), 343 'DCOUNT' => array( 40, 3, 0, 0 ), 344 'DSUM' => array( 41, 3, 0, 0 ), 345 'DAVERAGE' => array( 42, 3, 0, 0 ), 346 'DMIN' => array( 43, 3, 0, 0 ), 347 'DMAX' => array( 44, 3, 0, 0 ), 348 'DSTDEV' => array( 45, 3, 0, 0 ), 349 'VAR' => array( 46, -1, 0, 0 ), 350 'DVAR' => array( 47, 3, 0, 0 ), 351 'TEXT' => array( 48, 2, 1, 0 ), 352 'LINEST' => array( 49, -1, 0, 0 ), 353 'TREND' => array( 50, -1, 0, 0 ), 354 'LOGEST' => array( 51, -1, 0, 0 ), 355 'GROWTH' => array( 52, -1, 0, 0 ), 356 'PV' => array( 56, -1, 1, 0 ), 357 'FV' => array( 57, -1, 1, 0 ), 358 'NPER' => array( 58, -1, 1, 0 ), 359 'PMT' => array( 59, -1, 1, 0 ), 360 'RATE' => array( 60, -1, 1, 0 ), 361 'MIRR' => array( 61, 3, 0, 0 ), 362 'IRR' => array( 62, -1, 0, 0 ), 363 'RAND' => array( 63, 0, 1, 1 ), 364 'MATCH' => array( 64, -1, 0, 0 ), 365 'DATE' => array( 65, 3, 1, 0 ), 366 'TIME' => array( 66, 3, 1, 0 ), 367 'DAY' => array( 67, 1, 1, 0 ), 368 'MONTH' => array( 68, 1, 1, 0 ), 369 'YEAR' => array( 69, 1, 1, 0 ), 370 'WEEKDAY' => array( 70, -1, 1, 0 ), 371 'HOUR' => array( 71, 1, 1, 0 ), 372 'MINUTE' => array( 72, 1, 1, 0 ), 373 'SECOND' => array( 73, 1, 1, 0 ), 374 'NOW' => array( 74, 0, 1, 1 ), 375 'AREAS' => array( 75, 1, 0, 1 ), 376 'ROWS' => array( 76, 1, 0, 1 ), 377 'COLUMNS' => array( 77, 1, 0, 1 ), 378 'OFFSET' => array( 78, -1, 0, 1 ), 379 'SEARCH' => array( 82, -1, 1, 0 ), 380 'TRANSPOSE' => array( 83, 1, 1, 0 ), 381 'TYPE' => array( 86, 1, 1, 0 ), 382 'ATAN2' => array( 97, 2, 1, 0 ), 383 'ASIN' => array( 98, 1, 1, 0 ), 384 'ACOS' => array( 99, 1, 1, 0 ), 385 'CHOOSE' => array( 100, -1, 1, 0 ), 386 'HLOOKUP' => array( 101, -1, 0, 0 ), 387 'VLOOKUP' => array( 102, -1, 0, 0 ), 388 'ISREF' => array( 105, 1, 0, 0 ), 389 'LOG' => array( 109, -1, 1, 0 ), 390 'CHAR' => array( 111, 1, 1, 0 ), 391 'LOWER' => array( 112, 1, 1, 0 ), 392 'UPPER' => array( 113, 1, 1, 0 ), 393 'PROPER' => array( 114, 1, 1, 0 ), 394 'LEFT' => array( 115, -1, 1, 0 ), 395 'RIGHT' => array( 116, -1, 1, 0 ), 396 'EXACT' => array( 117, 2, 1, 0 ), 397 'TRIM' => array( 118, 1, 1, 0 ), 398 'REPLACE' => array( 119, 4, 1, 0 ), 399 'SUBSTITUTE' => array( 120, -1, 1, 0 ), 400 'CODE' => array( 121, 1, 1, 0 ), 401 'FIND' => array( 124, -1, 1, 0 ), 402 'CELL' => array( 125, -1, 0, 1 ), 403 'ISERR' => array( 126, 1, 1, 0 ), 404 'ISTEXT' => array( 127, 1, 1, 0 ), 405 'ISNUMBER' => array( 128, 1, 1, 0 ), 406 'ISBLANK' => array( 129, 1, 1, 0 ), 407 'T' => array( 130, 1, 0, 0 ), 408 'N' => array( 131, 1, 0, 0 ), 409 'DATEVALUE' => array( 140, 1, 1, 0 ), 410 'TIMEVALUE' => array( 141, 1, 1, 0 ), 411 'SLN' => array( 142, 3, 1, 0 ), 412 'SYD' => array( 143, 4, 1, 0 ), 413 'DDB' => array( 144, -1, 1, 0 ), 414 'INDIRECT' => array( 148, -1, 1, 1 ), 415 'CALL' => array( 150, -1, 1, 0 ), 416 'CLEAN' => array( 162, 1, 1, 0 ), 417 'MDETERM' => array( 163, 1, 2, 0 ), 418 'MINVERSE' => array( 164, 1, 2, 0 ), 419 'MMULT' => array( 165, 2, 2, 0 ), 420 'IPMT' => array( 167, -1, 1, 0 ), 421 'PPMT' => array( 168, -1, 1, 0 ), 422 'COUNTA' => array( 169, -1, 0, 0 ), 423 'PRODUCT' => array( 183, -1, 0, 0 ), 424 'FACT' => array( 184, 1, 1, 0 ), 425 'DPRODUCT' => array( 189, 3, 0, 0 ), 426 'ISNONTEXT' => array( 190, 1, 1, 0 ), 427 'STDEVP' => array( 193, -1, 0, 0 ), 428 'VARP' => array( 194, -1, 0, 0 ), 429 'DSTDEVP' => array( 195, 3, 0, 0 ), 430 'DVARP' => array( 196, 3, 0, 0 ), 431 'TRUNC' => array( 197, -1, 1, 0 ), 432 'ISLOGICAL' => array( 198, 1, 1, 0 ), 433 'DCOUNTA' => array( 199, 3, 0, 0 ), 434 'ROUNDUP' => array( 212, 2, 1, 0 ), 435 'ROUNDDOWN' => array( 213, 2, 1, 0 ), 436 'RANK' => array( 216, -1, 0, 0 ), 437 'ADDRESS' => array( 219, -1, 1, 0 ), 438 'DAYS360' => array( 220, -1, 1, 0 ), 439 'TODAY' => array( 221, 0, 1, 1 ), 440 'VDB' => array( 222, -1, 1, 0 ), 441 'MEDIAN' => array( 227, -1, 0, 0 ), 442 'SUMPRODUCT' => array( 228, -1, 2, 0 ), 443 'SINH' => array( 229, 1, 1, 0 ), 444 'COSH' => array( 230, 1, 1, 0 ), 445 'TANH' => array( 231, 1, 1, 0 ), 446 'ASINH' => array( 232, 1, 1, 0 ), 447 'ACOSH' => array( 233, 1, 1, 0 ), 448 'ATANH' => array( 234, 1, 1, 0 ), 449 'DGET' => array( 235, 3, 0, 0 ), 450 'INFO' => array( 244, 1, 1, 1 ), 451 'DB' => array( 247, -1, 1, 0 ), 452 'FREQUENCY' => array( 252, 2, 0, 0 ), 453 'ERROR.TYPE' => array( 261, 1, 1, 0 ), 454 'REGISTER.ID' => array( 267, -1, 1, 0 ), 455 'AVEDEV' => array( 269, -1, 0, 0 ), 456 'BETADIST' => array( 270, -1, 1, 0 ), 457 'GAMMALN' => array( 271, 1, 1, 0 ), 458 'BETAINV' => array( 272, -1, 1, 0 ), 459 'BINOMDIST' => array( 273, 4, 1, 0 ), 460 'CHIDIST' => array( 274, 2, 1, 0 ), 461 'CHIINV' => array( 275, 2, 1, 0 ), 462 'COMBIN' => array( 276, 2, 1, 0 ), 463 'CONFIDENCE' => array( 277, 3, 1, 0 ), 464 'CRITBINOM' => array( 278, 3, 1, 0 ), 465 'EVEN' => array( 279, 1, 1, 0 ), 466 'EXPONDIST' => array( 280, 3, 1, 0 ), 467 'FDIST' => array( 281, 3, 1, 0 ), 468 'FINV' => array( 282, 3, 1, 0 ), 469 'FISHER' => array( 283, 1, 1, 0 ), 470 'FISHERINV' => array( 284, 1, 1, 0 ), 471 'FLOOR' => array( 285, 2, 1, 0 ), 472 'GAMMADIST' => array( 286, 4, 1, 0 ), 473 'GAMMAINV' => array( 287, 3, 1, 0 ), 474 'CEILING' => array( 288, 2, 1, 0 ), 475 'HYPGEOMDIST' => array( 289, 4, 1, 0 ), 476 'LOGNORMDIST' => array( 290, 3, 1, 0 ), 477 'LOGINV' => array( 291, 3, 1, 0 ), 478 'NEGBINOMDIST' => array( 292, 3, 1, 0 ), 479 'NORMDIST' => array( 293, 4, 1, 0 ), 480 'NORMSDIST' => array( 294, 1, 1, 0 ), 481 'NORMINV' => array( 295, 3, 1, 0 ), 482 'NORMSINV' => array( 296, 1, 1, 0 ), 483 'STANDARDIZE' => array( 297, 3, 1, 0 ), 484 'ODD' => array( 298, 1, 1, 0 ), 485 'PERMUT' => array( 299, 2, 1, 0 ), 486 'POISSON' => array( 300, 3, 1, 0 ), 487 'TDIST' => array( 301, 3, 1, 0 ), 488 'WEIBULL' => array( 302, 4, 1, 0 ), 489 'SUMXMY2' => array( 303, 2, 2, 0 ), 490 'SUMX2MY2' => array( 304, 2, 2, 0 ), 491 'SUMX2PY2' => array( 305, 2, 2, 0 ), 492 'CHITEST' => array( 306, 2, 2, 0 ), 493 'CORREL' => array( 307, 2, 2, 0 ), 494 'COVAR' => array( 308, 2, 2, 0 ), 495 'FORECAST' => array( 309, 3, 2, 0 ), 496 'FTEST' => array( 310, 2, 2, 0 ), 497 'INTERCEPT' => array( 311, 2, 2, 0 ), 498 'PEARSON' => array( 312, 2, 2, 0 ), 499 'RSQ' => array( 313, 2, 2, 0 ), 500 'STEYX' => array( 314, 2, 2, 0 ), 501 'SLOPE' => array( 315, 2, 2, 0 ), 502 'TTEST' => array( 316, 4, 2, 0 ), 503 'PROB' => array( 317, -1, 2, 0 ), 504 'DEVSQ' => array( 318, -1, 0, 0 ), 505 'GEOMEAN' => array( 319, -1, 0, 0 ), 506 'HARMEAN' => array( 320, -1, 0, 0 ), 507 'SUMSQ' => array( 321, -1, 0, 0 ), 508 'KURT' => array( 322, -1, 0, 0 ), 509 'SKEW' => array( 323, -1, 0, 0 ), 510 'ZTEST' => array( 324, -1, 0, 0 ), 511 'LARGE' => array( 325, 2, 0, 0 ), 512 'SMALL' => array( 326, 2, 0, 0 ), 513 'QUARTILE' => array( 327, 2, 0, 0 ), 514 'PERCENTILE' => array( 328, 2, 0, 0 ), 515 'PERCENTRANK' => array( 329, -1, 0, 0 ), 516 'MODE' => array( 330, -1, 2, 0 ), 517 'TRIMMEAN' => array( 331, 2, 0, 0 ), 518 'TINV' => array( 332, 2, 1, 0 ), 519 'CONCATENATE' => array( 336, -1, 1, 0 ), 520 'POWER' => array( 337, 2, 1, 0 ), 521 'RADIANS' => array( 342, 1, 1, 0 ), 522 'DEGREES' => array( 343, 1, 1, 0 ), 523 'SUBTOTAL' => array( 344, -1, 0, 0 ), 524 'SUMIF' => array( 345, -1, 0, 0 ), 525 'COUNTIF' => array( 346, 2, 0, 0 ), 526 'COUNTBLANK' => array( 347, 1, 0, 0 ), 527 'ROMAN' => array( 354, -1, 1, 0 ) 528 ); 529 } 530 531 /** 532 * Convert a token to the proper ptg value. 533 * 534 * @access private 535 * @param mixed $token The token to convert. 536 * @return mixed the converted token on success. PEAR_Error if the token 537 * is not recognized 538 */ 539 function _convert($token) 540 { 541 if (preg_match("/^\"[^\"]{0,255}\"$/", $token)) 542 { 543 return $this->_convertString($token); 544 } 545 elseif (is_numeric($token)) 546 { 547 return $this->_convertNumber($token); 548 } 549 // match references like A1 or $A$1 550 elseif (preg_match('/^\$?([A-Ia-i]?[A-Za-z])\$?(\d+)$/',$token)) 551 { 552 return $this->_convertRef2d($token); 553 } 554 // match external references like Sheet1!A1 or Sheet1:Sheet2!A1 555 elseif (preg_match("/^\w+(\:\w+)?\![A-Ia-i]?[A-Za-z](\d+)$/",$token)) 556 { 557 return $this->_convertRef3d($token); 558 } 559 // match external references like Sheet1!A1 or Sheet1:Sheet2!A1 560 elseif (preg_match("/^'\w+(\:\w+)?'\![A-Ia-i]?[A-Za-z](\d+)$/",$token)) 561 { 562 return $this->_convertRef3d($token); 563 } 564 // match ranges like A1:B2 565 elseif (preg_match("/^(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)\:(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)$/",$token)) 566 { 567 return $this->_convertRange2d($token); 568 } 569 // match ranges like A1..B2 570 elseif (preg_match("/^(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)\.\.(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)$/",$token)) 571 { 572 return $this->_convertRange2d($token); 573 } 574 // match external ranges like Sheet1!A1 or Sheet1:Sheet2!A1:B2 575 elseif (preg_match("/^\w+(\:\w+)?\!([A-Ia-i]?[A-Za-z])?(\d+)\:([A-Ia-i]?[A-Za-z])?(\d+)$/",$token)) 576 { 577 return $this->_convertRange3d($token); 578 } 579 // match external ranges like 'Sheet1'!A1 or 'Sheet1:Sheet2'!A1:B2 580 elseif (preg_match("/^'\w+(\:\w+)?'\!([A-Ia-i]?[A-Za-z])?(\d+)\:([A-Ia-i]?[A-Za-z])?(\d+)$/",$token)) 581 { 582 return $this->_convertRange3d($token); 583 } 584 elseif (isset($this->ptg[$token])) // operators (including parentheses) 585 { 586 return pack("C", $this->ptg[$token]); 587 } 588 // commented so argument number can be processed correctly. See toReversePolish(). 589 /*elseif (preg_match("/[A-Z0-9\xc0-\xdc\.]+/",$token)) 590 { 591 return($this->_convertFunction($token,$this->_func_args)); 592 }*/ 593 // if it's an argument, ignore the token (the argument remains) 594 elseif ($token == 'arg') 595 { 596 return ''; 597 } 598 // TODO: use real error codes 599 return $this->raiseError("Unknown token $token"); 600 } 601 602 /** 603 * Convert a number token to ptgInt or ptgNum 604 * 605 * @access private 606 * @param mixed $num an integer or double for conversion to its ptg value 607 */ 608 function _convertNumber($num) 609 { 610 // Integer in the range 0..2**16-1 611 if ((preg_match("/^\d+$/",$num)) and ($num <= 65535)) { 612 return pack("Cv", $this->ptg['ptgInt'], $num); 613 } 614 else // A float 615 { 616 if ($this->_byte_order) { // if it's Big Endian 617 $num = strrev($num); 618 } 619 return pack("Cd", $this->ptg['ptgNum'], $num); 620 } 621 } 622 623 /** 624 * Convert a string token to ptgStr 625 * 626 * @access private 627 * @param string $string A string for conversion to its ptg value. 628 * @return mixed the converted token on success. PEAR_Error if the string 629 * is longer than 255 characters. 630 */ 631 function _convertString($string) 632 { 633 // chop away beggining and ending quotes 634 $string = substr($string, 1, strlen($string) - 2); 635 if (strlen($string) > 255) { 636 return $this->raiseError("String is too long"); 637 } 638 if ($this->_BIFF_version == 0x0500) { 639 return pack("CC", $this->ptg['ptgStr'], strlen($string)).$string; 640 } 641 elseif ($this->_BIFF_version == 0x0600) { 642 $encoding = 0; // TODO: Unicode support 643 return pack("CCC", $this->ptg['ptgStr'], strlen($string), $encoding).$string; 644 } 645 } 646 647 /** 648 * Convert a function to a ptgFunc or ptgFuncVarV depending on the number of 649 * args that it takes. 650 * 651 * @access private 652 * @param string $token The name of the function for convertion to ptg value. 653 * @param integer $num_args The number of arguments the function receives. 654 * @return string The packed ptg for the function 655 */ 656 function _convertFunction($token, $num_args) 657 { 658 $args = $this->_functions[$token][1]; 659 $volatile = $this->_functions[$token][3]; 660 661 // Fixed number of args eg. TIME($i,$j,$k). 662 if ($args >= 0) { 663 return pack("Cv", $this->ptg['ptgFuncV'], $this->_functions[$token][0]); 664 } 665 // Variable number of args eg. SUM($i,$j,$k, ..). 666 if ($args == -1) { 667 return pack("CCv", $this->ptg['ptgFuncVarV'], $num_args, $this->_functions[$token][0]); 668 } 669 } 670 671 /** 672 * Convert an Excel range such as A1:D4 to a ptgRefV. 673 * 674 * @access private 675 * @param string $range An Excel range in the A1:A2 or A1..A2 format. 676 */ 677 function _convertRange2d($range) 678 { 679 $class = 2; // as far as I know, this is magick. 680 681 // Split the range into 2 cell refs 682 if (preg_match("/^([A-Ia-i]?[A-Za-z])(\d+)\:([A-Ia-i]?[A-Za-z])(\d+)$/",$range)) { 683 list($cell1, $cell2) = split(':', $range); 684 } 685 elseif (preg_match("/^([A-Ia-i]?[A-Za-z])(\d+)\.\.([A-Ia-i]?[A-Za-z])(\d+)$/",$range)) { 686 list($cell1, $cell2) = split('\.\.', $range); 687 688 } 689 else { 690 // TODO: use real error codes 691 return $this->raiseError("Unknown range separator", 0, PEAR_ERROR_DIE); 692 } 693 694 // Convert the cell references 695 $cell_array1 = $this->_cellToPackedRowcol($cell1); 696 if (PEAR::isError($cell_array1)) { 697 return $cell_array1; 698 } 699 list($row1, $col1) = $cell_array1; 700 $cell_array2 = $this->_cellToPackedRowcol($cell2); 701 if (PEAR::isError($cell_array2)) { 702 return $cell_array2; 703 } 704 list($row2, $col2) = $cell_array2; 705 706 // The ptg value depends on the class of the ptg. 707 if ($class == 0) { 708 $ptgArea = pack("C", $this->ptg['ptgArea']); 709 } 710 elseif ($class == 1) { 711 $ptgArea = pack("C", $this->ptg['ptgAreaV']); 712 } 713 elseif ($class == 2) { 714 $ptgArea = pack("C", $this->ptg['ptgAreaA']); 715 } 716 else { 717 // TODO: use real error codes 718 return $this->raiseError("Unknown class $class", 0, PEAR_ERROR_DIE); 719 } 720 return $ptgArea . $row1 . $row2 . $col1. $col2; 721 } 722 723 /** 724 * Convert an Excel 3d range such as "Sheet1!A1:D4" or "Sheet1:Sheet2!A1:D4" to 725 * a ptgArea3d. 726 * 727 * @access private 728 * @param string $token An Excel range in the Sheet1!A1:A2 format. 729 * @return mixed The packed ptgArea3d token on success, PEAR_Error on failure. 730 */ 731 function _convertRange3d($token) 732 { 733 $class = 2; // as far as I know, this is magick. 734 735 // Split the ref at the ! symbol 736 list($ext_ref, $range) = split('!', $token); 737 738 // Convert the external reference part (different for BIFF8) 739 if ($this->_BIFF_version == 0x0500) { 740 $ext_ref = $this->_packExtRef($ext_ref); 741 if (PEAR::isError($ext_ref)) { 742 return $ext_ref; 743 } 744 } 745 elseif ($this->_BIFF_version == 0x0600) { 746 $ext_ref = $this->_getRefIndex($ext_ref); 747 if (PEAR::isError($ext_ref)) { 748 return $ext_ref; 749 } 750 } 751 752 // Split the range into 2 cell refs 753 list($cell1, $cell2) = split(':', $range); 754 755 // Convert the cell references 756 if (preg_match("/^(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)$/", $cell1)) 757 { 758 $cell_array1 = $this->_cellToPackedRowcol($cell1); 759 if (PEAR::isError($cell_array1)) { 760 return $cell_array1; 761 } 762 list($row1, $col1) = $cell_array1; 763 $cell_array2 = $this->_cellToPackedRowcol($cell2); 764 if (PEAR::