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Moodle
2.2.1
http://www.collinsharper.com
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Moodle
2.2.1
http://www.collinsharper.com
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00001 <?php 00028 define('SPREADSHEET_EXCEL_WRITER_ADD', "+"); 00029 00033 define('SPREADSHEET_EXCEL_WRITER_SUB', "-"); 00034 00038 define('SPREADSHEET_EXCEL_WRITER_MUL', "*"); 00039 00043 define('SPREADSHEET_EXCEL_WRITER_DIV', "/"); 00044 00048 define('SPREADSHEET_EXCEL_WRITER_OPEN', "("); 00049 00053 define('SPREADSHEET_EXCEL_WRITER_CLOSE', ")"); 00054 00058 define('SPREADSHEET_EXCEL_WRITER_COMA', ","); 00059 00063 define('SPREADSHEET_EXCEL_WRITER_SEMICOLON', ";"); 00064 00068 define('SPREADSHEET_EXCEL_WRITER_GT', ">"); 00069 00073 define('SPREADSHEET_EXCEL_WRITER_LT', "<"); 00074 00078 define('SPREADSHEET_EXCEL_WRITER_LE', "<="); 00079 00083 define('SPREADSHEET_EXCEL_WRITER_GE', ">="); 00084 00088 define('SPREADSHEET_EXCEL_WRITER_EQ', "="); 00089 00093 define('SPREADSHEET_EXCEL_WRITER_NE', "<>"); 00094 00095 00096 require_once 'PEAR.php'; 00097 00106 class Spreadsheet_Excel_Writer_Parser extends PEAR 00107 { 00112 var $_current_char; 00113 00118 var $_current_token; 00119 00124 var $_formula; 00125 00130 var $_lookahead; 00131 00136 var $_parse_tree; 00137 00142 var $_byte_order; 00143 00148 var $_ext_sheets; 00149 00154 var $_references; 00155 00160 var $_BIFF_version; 00161 00168 function Spreadsheet_Excel_Writer_Parser($byte_order, $biff_version) 00169 { 00170 $this->_current_char = 0; 00171 $this->_BIFF_version = $biff_version; 00172 $this->_current_token = ''; // The token we are working on. 00173 $this->_formula = ''; // The formula to parse. 00174 $this->_lookahead = ''; // The character ahead of the current char. 00175 $this->_parse_tree = ''; // The parse tree to be generated. 00176 $this->_initializeHashes(); // Initialize the hashes: ptg's and function's ptg's 00177 $this->_byte_order = $byte_order; // Little Endian or Big Endian 00178 $this->_ext_sheets = array(); 00179 $this->_references = array(); 00180 } 00181 00187 function _initializeHashes() 00188 { 00189 // The Excel ptg indices 00190 $this->ptg = array( 00191 'ptgExp' => 0x01, 00192 'ptgTbl' => 0x02, 00193 'ptgAdd' => 0x03, 00194 'ptgSub' => 0x04, 00195 'ptgMul' => 0x05, 00196 'ptgDiv' => 0x06, 00197 'ptgPower' => 0x07, 00198 'ptgConcat' => 0x08, 00199 'ptgLT' => 0x09, 00200 'ptgLE' => 0x0A, 00201 'ptgEQ' => 0x0B, 00202 'ptgGE' => 0x0C, 00203 'ptgGT' => 0x0D, 00204 'ptgNE' => 0x0E, 00205 'ptgIsect' => 0x0F, 00206 'ptgUnion' => 0x10, 00207 'ptgRange' => 0x11, 00208 'ptgUplus' => 0x12, 00209 'ptgUminus' => 0x13, 00210 'ptgPercent' => 0x14, 00211 'ptgParen' => 0x15, 00212 'ptgMissArg' => 0x16, 00213 'ptgStr' => 0x17, 00214 'ptgAttr' => 0x19, 00215 'ptgSheet' => 0x1A, 00216 'ptgEndSheet' => 0x1B, 00217 'ptgErr' => 0x1C, 00218 'ptgBool' => 0x1D, 00219 'ptgInt' => 0x1E, 00220 'ptgNum' => 0x1F, 00221 'ptgArray' => 0x20, 00222 'ptgFunc' => 0x21, 00223 'ptgFuncVar' => 0x22, 00224 'ptgName' => 0x23, 00225 'ptgRef' => 0x24, 00226 'ptgArea' => 0x25, 00227 'ptgMemArea' => 0x26, 00228 'ptgMemErr' => 0x27, 00229 'ptgMemNoMem' => 0x28, 00230 'ptgMemFunc' => 0x29, 00231 'ptgRefErr' => 0x2A, 00232 'ptgAreaErr' => 0x2B, 00233 'ptgRefN' => 0x2C, 00234 'ptgAreaN' => 0x2D, 00235 'ptgMemAreaN' => 0x2E, 00236 'ptgMemNoMemN' => 0x2F, 00237 'ptgNameX' => 0x39, 00238 'ptgRef3d' => 0x3A, 00239 'ptgArea3d' => 0x3B, 00240 'ptgRefErr3d' => 0x3C, 00241 'ptgAreaErr3d' => 0x3D, 00242 'ptgArrayV' => 0x40, 00243 'ptgFuncV' => 0x41, 00244 'ptgFuncVarV' => 0x42, 00245 'ptgNameV' => 0x43, 00246 'ptgRefV' => 0x44, 00247 'ptgAreaV' => 0x45, 00248 'ptgMemAreaV' => 0x46, 00249 'ptgMemErrV' => 0x47, 00250 'ptgMemNoMemV' => 0x48, 00251 'ptgMemFuncV' => 0x49, 00252 'ptgRefErrV' => 0x4A, 00253 'ptgAreaErrV' => 0x4B, 00254 'ptgRefNV' => 0x4C, 00255 'ptgAreaNV' => 0x4D, 00256 'ptgMemAreaNV' => 0x4E, 00257 'ptgMemNoMemN' => 0x4F, 00258 'ptgFuncCEV' => 0x58, 00259 'ptgNameXV' => 0x59, 00260 'ptgRef3dV' => 0x5A, 00261 'ptgArea3dV' => 0x5B, 00262 'ptgRefErr3dV' => 0x5C, 00263 'ptgAreaErr3d' => 0x5D, 00264 'ptgArrayA' => 0x60, 00265 'ptgFuncA' => 0x61, 00266 'ptgFuncVarA' => 0x62, 00267 'ptgNameA' => 0x63, 00268 'ptgRefA' => 0x64, 00269 'ptgAreaA' => 0x65, 00270 'ptgMemAreaA' => 0x66, 00271 'ptgMemErrA' => 0x67, 00272 'ptgMemNoMemA' => 0x68, 00273 'ptgMemFuncA' => 0x69, 00274 'ptgRefErrA' => 0x6A, 00275 'ptgAreaErrA' => 0x6B, 00276 'ptgRefNA' => 0x6C, 00277 'ptgAreaNA' => 0x6D, 00278 'ptgMemAreaNA' => 0x6E, 00279 'ptgMemNoMemN' => 0x6F, 00280 'ptgFuncCEA' => 0x78, 00281 'ptgNameXA' => 0x79, 00282 'ptgRef3dA' => 0x7A, 00283 'ptgArea3dA' => 0x7B, 00284 'ptgRefErr3dA' => 0x7C, 00285 'ptgAreaErr3d' => 0x7D 00286 ); 00287 00288 // Thanks to Michael Meeks and Gnumeric for the initial arg values. 00289 // 00290 // The following hash was generated by "function_locale.pl" in the distro. 00291 // Refer to function_locale.pl for non-English function names. 00292 // 00293 // The array elements are as follow: 00294 // ptg: The Excel function ptg code. 00295 // args: The number of arguments that the function takes: 00296 // >=0 is a fixed number of arguments. 00297 // -1 is a variable number of arguments. 00298 // class: The reference, value or array class of the function args. 00299 // vol: The function is volatile. 00300 // 00301 $this->_functions = array( 00302 // function ptg args class vol 00303 'COUNT' => array( 0, -1, 0, 0 ), 00304 'IF' => array( 1, -1, 1, 0 ), 00305 'ISNA' => array( 2, 1, 1, 0 ), 00306 'ISERROR' => array( 3, 1, 1, 0 ), 00307 'SUM' => array( 4, -1, 0, 0 ), 00308 'AVERAGE' => array( 5, -1, 0, 0 ), 00309 'MIN' => array( 6, -1, 0, 0 ), 00310 'MAX' => array( 7, -1, 0, 0 ), 00311 'ROW' => array( 8, -1, 0, 0 ), 00312 'COLUMN' => array( 9, -1, 0, 0 ), 00313 'NA' => array( 10, 0, 0, 0 ), 00314 'NPV' => array( 11, -1, 1, 0 ), 00315 'STDEV' => array( 12, -1, 0, 0 ), 00316 'DOLLAR' => array( 13, -1, 1, 0 ), 00317 'FIXED' => array( 14, -1, 1, 0 ), 00318 'SIN' => array( 15, 1, 1, 0 ), 00319 'COS' => array( 16, 1, 1, 0 ), 00320 'TAN' => array( 17, 1, 1, 0 ), 00321 'ATAN' => array( 18, 1, 1, 0 ), 00322 'PI' => array( 19, 0, 1, 0 ), 00323 'SQRT' => array( 20, 1, 1, 0 ), 00324 'EXP' => array( 21, 1, 1, 0 ), 00325 'LN' => array( 22, 1, 1, 0 ), 00326 'LOG10' => array( 23, 1, 1, 0 ), 00327 'ABS' => array( 24, 1, 1, 0 ), 00328 'INT' => array( 25, 1, 1, 0 ), 00329 'SIGN' => array( 26, 1, 1, 0 ), 00330 'ROUND' => array( 27, 2, 1, 0 ), 00331 'LOOKUP' => array( 28, -1, 0, 0 ), 00332 'INDEX' => array( 29, -1, 0, 1 ), 00333 'REPT' => array( 30, 2, 1, 0 ), 00334 'MID' => array( 31, 3, 1, 0 ), 00335 'LEN' => array( 32, 1, 1, 0 ), 00336 'VALUE' => array( 33, 1, 1, 0 ), 00337 'TRUE' => array( 34, 0, 1, 0 ), 00338 'FALSE' => array( 35, 0, 1, 0 ), 00339 'AND' => array( 36, -1, 0, 0 ), 00340 'OR' => array( 37, -1, 0, 0 ), 00341 'NOT' => array( 38, 1, 1, 0 ), 00342 'MOD' => array( 39, 2, 1, 0 ), 00343 'DCOUNT' => array( 40, 3, 0, 0 ), 00344 'DSUM' => array( 41, 3, 0, 0 ), 00345 'DAVERAGE' => array( 42, 3, 0, 0 ), 00346 'DMIN' => array( 43, 3, 0, 0 ), 00347 'DMAX' => array( 44, 3, 0, 0 ), 00348 'DSTDEV' => array( 45, 3, 0, 0 ), 00349 'VAR' => array( 46, -1, 0, 0 ), 00350 'DVAR' => array( 47, 3, 0, 0 ), 00351 'TEXT' => array( 48, 2, 1, 0 ), 00352 'LINEST' => array( 49, -1, 0, 0 ), 00353 'TREND' => array( 50, -1, 0, 0 ), 00354 'LOGEST' => array( 51, -1, 0, 0 ), 00355 'GROWTH' => array( 52, -1, 0, 0 ), 00356 'PV' => array( 56, -1, 1, 0 ), 00357 'FV' => array( 57, -1, 1, 0 ), 00358 'NPER' => array( 58, -1, 1, 0 ), 00359 'PMT' => array( 59, -1, 1, 0 ), 00360 'RATE' => array( 60, -1, 1, 0 ), 00361 'MIRR' => array( 61, 3, 0, 0 ), 00362 'IRR' => array( 62, -1, 0, 0 ), 00363 'RAND' => array( 63, 0, 1, 1 ), 00364 'MATCH' => array( 64, -1, 0, 0 ), 00365 'DATE' => array( 65, 3, 1, 0 ), 00366 'TIME' => array( 66, 3, 1, 0 ), 00367 'DAY' => array( 67, 1, 1, 0 ), 00368 'MONTH' => array( 68, 1, 1, 0 ), 00369 'YEAR' => array( 69, 1, 1, 0 ), 00370 'WEEKDAY' => array( 70, -1, 1, 0 ), 00371 'HOUR' => array( 71, 1, 1, 0 ), 00372 'MINUTE' => array( 72, 1, 1, 0 ), 00373 'SECOND' => array( 73, 1, 1, 0 ), 00374 'NOW' => array( 74, 0, 1, 1 ), 00375 'AREAS' => array( 75, 1, 0, 1 ), 00376 'ROWS' => array( 76, 1, 0, 1 ), 00377 'COLUMNS' => array( 77, 1, 0, 1 ), 00378 'OFFSET' => array( 78, -1, 0, 1 ), 00379 'SEARCH' => array( 82, -1, 1, 0 ), 00380 'TRANSPOSE' => array( 83, 1, 1, 0 ), 00381 'TYPE' => array( 86, 1, 1, 0 ), 00382 'ATAN2' => array( 97, 2, 1, 0 ), 00383 'ASIN' => array( 98, 1, 1, 0 ), 00384 'ACOS' => array( 99, 1, 1, 0 ), 00385 'CHOOSE' => array( 100, -1, 1, 0 ), 00386 'HLOOKUP' => array( 101, -1, 0, 0 ), 00387 'VLOOKUP' => array( 102, -1, 0, 0 ), 00388 'ISREF' => array( 105, 1, 0, 0 ), 00389 'LOG' => array( 109, -1, 1, 0 ), 00390 'CHAR' => array( 111, 1, 1, 0 ), 00391 'LOWER' => array( 112, 1, 1, 0 ), 00392 'UPPER' => array( 113, 1, 1, 0 ), 00393 'PROPER' => array( 114, 1, 1, 0 ), 00394 'LEFT' => array( 115, -1, 1, 0 ), 00395 'RIGHT' => array( 116, -1, 1, 0 ), 00396 'EXACT' => array( 117, 2, 1, 0 ), 00397 'TRIM' => array( 118, 1, 1, 0 ), 00398 'REPLACE' => array( 119, 4, 1, 0 ), 00399 'SUBSTITUTE' => array( 120, -1, 1, 0 ), 00400 'CODE' => array( 121, 1, 1, 0 ), 00401 'FIND' => array( 124, -1, 1, 0 ), 00402 'CELL' => array( 125, -1, 0, 1 ), 00403 'ISERR' => array( 126, 1, 1, 0 ), 00404 'ISTEXT' => array( 127, 1, 1, 0 ), 00405 'ISNUMBER' => array( 128, 1, 1, 0 ), 00406 'ISBLANK' => array( 129, 1, 1, 0 ), 00407 'T' => array( 130, 1, 0, 0 ), 00408 'N' => array( 131, 1, 0, 0 ), 00409 'DATEVALUE' => array( 140, 1, 1, 0 ), 00410 'TIMEVALUE' => array( 141, 1, 1, 0 ), 00411 'SLN' => array( 142, 3, 1, 0 ), 00412 'SYD' => array( 143, 4, 1, 0 ), 00413 'DDB' => array( 144, -1, 1, 0 ), 00414 'INDIRECT' => array( 148, -1, 1, 1 ), 00415 'CALL' => array( 150, -1, 1, 0 ), 00416 'CLEAN' => array( 162, 1, 1, 0 ), 00417 'MDETERM' => array( 163, 1, 2, 0 ), 00418 'MINVERSE' => array( 164, 1, 2, 0 ), 00419 'MMULT' => array( 165, 2, 2, 0 ), 00420 'IPMT' => array( 167, -1, 1, 0 ), 00421 'PPMT' => array( 168, -1, 1, 0 ), 00422 'COUNTA' => array( 169, -1, 0, 0 ), 00423 'PRODUCT' => array( 183, -1, 0, 0 ), 00424 'FACT' => array( 184, 1, 1, 0 ), 00425 'DPRODUCT' => array( 189, 3, 0, 0 ), 00426 'ISNONTEXT' => array( 190, 1, 1, 0 ), 00427 'STDEVP' => array( 193, -1, 0, 0 ), 00428 'VARP' => array( 194, -1, 0, 0 ), 00429 'DSTDEVP' => array( 195, 3, 0, 0 ), 00430 'DVARP' => array( 196, 3, 0, 0 ), 00431 'TRUNC' => array( 197, -1, 1, 0 ), 00432 'ISLOGICAL' => array( 198, 1, 1, 0 ), 00433 'DCOUNTA' => array( 199, 3, 0, 0 ), 00434 'ROUNDUP' => array( 212, 2, 1, 0 ), 00435 'ROUNDDOWN' => array( 213, 2, 1, 0 ), 00436 'RANK' => array( 216, -1, 0, 0 ), 00437 'ADDRESS' => array( 219, -1, 1, 0 ), 00438 'DAYS360' => array( 220, -1, 1, 0 ), 00439 'TODAY' => array( 221, 0, 1, 1 ), 00440 'VDB' => array( 222, -1, 1, 0 ), 00441 'MEDIAN' => array( 227, -1, 0, 0 ), 00442 'SUMPRODUCT' => array( 228, -1, 2, 0 ), 00443 'SINH' => array( 229, 1, 1, 0 ), 00444 'COSH' => array( 230, 1, 1, 0 ), 00445 'TANH' => array( 231, 1, 1, 0 ), 00446 'ASINH' => array( 232, 1, 1, 0 ), 00447 'ACOSH' => array( 233, 1, 1, 0 ), 00448 'ATANH' => array( 234, 1, 1, 0 ), 00449 'DGET' => array( 235, 3, 0, 0 ), 00450 'INFO' => array( 244, 1, 1, 1 ), 00451 'DB' => array( 247, -1, 1, 0 ), 00452 'FREQUENCY' => array( 252, 2, 0, 0 ), 00453 'ERROR.TYPE' => array( 261, 1, 1, 0 ), 00454 'REGISTER.ID' => array( 267, -1, 1, 0 ), 00455 'AVEDEV' => array( 269, -1, 0, 0 ), 00456 'BETADIST' => array( 270, -1, 1, 0 ), 00457 'GAMMALN' => array( 271, 1, 1, 0 ), 00458 'BETAINV' => array( 272, -1, 1, 0 ), 00459 'BINOMDIST' => array( 273, 4, 1, 0 ), 00460 'CHIDIST' => array( 274, 2, 1, 0 ), 00461 'CHIINV' => array( 275, 2, 1, 0 ), 00462 'COMBIN' => array( 276, 2, 1, 0 ), 00463 'CONFIDENCE' => array( 277, 3, 1, 0 ), 00464 'CRITBINOM' => array( 278, 3, 1, 0 ), 00465 'EVEN' => array( 279, 1, 1, 0 ), 00466 'EXPONDIST' => array( 280, 3, 1, 0 ), 00467 'FDIST' => array( 281, 3, 1, 0 ), 00468 'FINV' => array( 282, 3, 1, 0 ), 00469 'FISHER' => array( 283, 1, 1, 0 ), 00470 'FISHERINV' => array( 284, 1, 1, 0 ), 00471 'FLOOR' => array( 285, 2, 1, 0 ), 00472 'GAMMADIST' => array( 286, 4, 1, 0 ), 00473 'GAMMAINV' => array( 287, 3, 1, 0 ), 00474 'CEILING' => array( 288, 2, 1, 0 ), 00475 'HYPGEOMDIST' => array( 289, 4, 1, 0 ), 00476 'LOGNORMDIST' => array( 290, 3, 1, 0 ), 00477 'LOGINV' => array( 291, 3, 1, 0 ), 00478 'NEGBINOMDIST' => array( 292, 3, 1, 0 ), 00479 'NORMDIST' => array( 293, 4, 1, 0 ), 00480 'NORMSDIST' => array( 294, 1, 1, 0 ), 00481 'NORMINV' => array( 295, 3, 1, 0 ), 00482 'NORMSINV' => array( 296, 1, 1, 0 ), 00483 'STANDARDIZE' => array( 297, 3, 1, 0 ), 00484 'ODD' => array( 298, 1, 1, 0 ), 00485 'PERMUT' => array( 299, 2, 1, 0 ), 00486 'POISSON' => array( 300, 3, 1, 0 ), 00487 'TDIST' => array( 301, 3, 1, 0 ), 00488 'WEIBULL' => array( 302, 4, 1, 0 ), 00489 'SUMXMY2' => array( 303, 2, 2, 0 ), 00490 'SUMX2MY2' => array( 304, 2, 2, 0 ), 00491 'SUMX2PY2' => array( 305, 2, 2, 0 ), 00492 'CHITEST' => array( 306, 2, 2, 0 ), 00493 'CORREL' => array( 307, 2, 2, 0 ), 00494 'COVAR' => array( 308, 2, 2, 0 ), 00495 'FORECAST' => array( 309, 3, 2, 0 ), 00496 'FTEST' => array( 310, 2, 2, 0 ), 00497 'INTERCEPT' => array( 311, 2, 2, 0 ), 00498 'PEARSON' => array( 312, 2, 2, 0 ), 00499 'RSQ' => array( 313, 2, 2, 0 ), 00500 'STEYX' => array( 314, 2, 2, 0 ), 00501 'SLOPE' => array( 315, 2, 2, 0 ), 00502 'TTEST' => array( 316, 4, 2, 0 ), 00503 'PROB' => array( 317, -1, 2, 0 ), 00504 'DEVSQ' => array( 318, -1, 0, 0 ), 00505 'GEOMEAN' => array( 319, -1, 0, 0 ), 00506 'HARMEAN' => array( 320, -1, 0, 0 ), 00507 'SUMSQ' => array( 321, -1, 0, 0 ), 00508 'KURT' => array( 322, -1, 0, 0 ), 00509 'SKEW' => array( 323, -1, 0, 0 ), 00510 'ZTEST' => array( 324, -1, 0, 0 ), 00511 'LARGE' => array( 325, 2, 0, 0 ), 00512 'SMALL' => array( 326, 2, 0, 0 ), 00513 'QUARTILE' => array( 327, 2, 0, 0 ), 00514 'PERCENTILE' => array( 328, 2, 0, 0 ), 00515 'PERCENTRANK' => array( 329, -1, 0, 0 ), 00516 'MODE' => array( 330, -1, 2, 0 ), 00517 'TRIMMEAN' => array( 331, 2, 0, 0 ), 00518 'TINV' => array( 332, 2, 1, 0 ), 00519 'CONCATENATE' => array( 336, -1, 1, 0 ), 00520 'POWER' => array( 337, 2, 1, 0 ), 00521 'RADIANS' => array( 342, 1, 1, 0 ), 00522 'DEGREES' => array( 343, 1, 1, 0 ), 00523 'SUBTOTAL' => array( 344, -1, 0, 0 ), 00524 'SUMIF' => array( 345, -1, 0, 0 ), 00525 'COUNTIF' => array( 346, 2, 0, 0 ), 00526 'COUNTBLANK' => array( 347, 1, 0, 0 ), 00527 'ROMAN' => array( 354, -1, 1, 0 ) 00528 ); 00529 } 00530 00539 function _convert($token) 00540 { 00541 if (preg_match("/^\"[^\"]{0,255}\"$/", $token)) { 00542 return $this->_convertString($token); 00543 00544 } elseif (is_numeric($token)) { 00545 return $this->_convertNumber($token); 00546 00547 // match references like A1 or $A$1 00548 } elseif (preg_match('/^\$?([A-Ia-i]?[A-Za-z])\$?(\d+)$/',$token)) { 00549 return $this->_convertRef2d($token); 00550 00551 // match external references like Sheet1!A1 or Sheet1:Sheet2!A1 00552 } elseif (preg_match("/^\w+(\:\w+)?\![A-Ia-i]?[A-Za-z](\d+)$/u",$token)) { 00553 return $this->_convertRef3d($token); 00554 00555 // match external references like 'Sheet1'!A1 or 'Sheet1:Sheet2'!A1 00556 } elseif (preg_match("/^'[\w -]+(\:[\w -]+)?'\![A-Ia-i]?[A-Za-z](\d+)$/u",$token)) { 00557 return $this->_convertRef3d($token); 00558 00559 // match ranges like A1:B2 00560 } elseif (preg_match("/^(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)\:(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)$/",$token)) { 00561 return $this->_convertRange2d($token); 00562 00563 // match ranges like A1..B2 00564 } elseif (preg_match("/^(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)\.\.(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)$/",$token)) { 00565 return $this->_convertRange2d($token); 00566 00567 // match external ranges like Sheet1!A1 or Sheet1:Sheet2!A1:B2 00568 } elseif (preg_match("/^\w+(\:\w+)?\!([A-Ia-i]?[A-Za-z])?(\d+)\:([A-Ia-i]?[A-Za-z])?(\d+)$/u",$token)) { 00569 return $this->_convertRange3d($token); 00570 00571 // match external ranges like 'Sheet1'!A1 or 'Sheet1:Sheet2'!A1:B2 00572 } elseif (preg_match("/^'[\w -]+(\:[\w -]+)?'\!([A-Ia-i]?[A-Za-z])?(\d+)\:([A-Ia-i]?[A-Za-z])?(\d+)$/u",$token)) { 00573 return $this->_convertRange3d($token); 00574 00575 // operators (including parentheses) 00576 } elseif (isset($this->ptg[$token])) { 00577 return pack("C", $this->ptg[$token]); 00578 00579 // commented so argument number can be processed correctly. See toReversePolish(). 00580 /*elseif (preg_match("/[A-Z0-9\xc0-\xdc\.]+/",$token)) 00581 { 00582 return($this->_convertFunction($token,$this->_func_args)); 00583 }*/ 00584 00585 // if it's an argument, ignore the token (the argument remains) 00586 } elseif ($token == 'arg') { 00587 return ''; 00588 } 00589 // TODO: use real error codes 00590 return $this->raiseError("Unknown token $token"); 00591 } 00592 00599 function _convertNumber($num) 00600 { 00601 // Integer in the range 0..2**16-1 00602 if ((preg_match("/^\d+$/", $num)) and ($num <= 65535)) { 00603 return pack("Cv", $this->ptg['ptgInt'], $num); 00604 } else { // A float 00605 if ($this->_byte_order) { // if it's Big Endian 00606 $num = strrev($num); 00607 } 00608 return pack("Cd", $this->ptg['ptgNum'], $num); 00609 } 00610 } 00611 00620 function _convertString($string) 00621 { 00622 // chop away beggining and ending quotes 00623 $string = substr($string, 1, strlen($string) - 2); 00624 if (strlen($string) > 255) { 00625 return $this->raiseError("String is too long"); 00626 } 00627 00628 if ($this->_BIFF_version == 0x0500) { 00629 return pack("CC", $this->ptg['ptgStr'], strlen($string)).$string; 00630 } elseif ($this->_BIFF_version == 0x0600) { 00631 $encoding = 0; // TODO: Unicode support 00632 return pack("CCC", $this->ptg['ptgStr'], strlen($string), $encoding).$string; 00633 } 00634 } 00635 00645 function _convertFunction($token, $num_args) 00646 { 00647 $args = $this->_functions[$token][1]; 00648 $volatile = $this->_functions[$token][3]; 00649 00650 // Fixed number of args eg. TIME($i,$j,$k). 00651 if ($args >= 0) { 00652 return pack("Cv", $this->ptg['ptgFuncV'], $this->_functions[$token][0]); 00653 } 00654 // Variable number of args eg. SUM($i,$j,$k, ..). 00655 if ($args == -1) { 00656 return pack("CCv", $this->ptg['ptgFuncVarV'], $num_args, $this->_functions[$token][0]); 00657 } 00658 } 00659 00666 function _convertRange2d($range) 00667 { 00668 $class = 2; // as far as I know, this is magick. 00669 00670 // Split the range into 2 cell refs 00671 if (preg_match("/^([A-Ia-i]?[A-Za-z])(\d+)\:([A-Ia-i]?[A-Za-z])(\d+)$/", $range)) { 00672 list($cell1, $cell2) = explode(':', $range); 00673 } elseif (preg_match("/^([A-Ia-i]?[A-Za-z])(\d+)\.\.([A-Ia-i]?[A-Za-z])(\d+)$/", $range)) { 00674 list($cell1, $cell2) = explode('..', $range); 00675 00676 } else { 00677 // TODO: use real error codes 00678 return $this->raiseError("Unknown range separator", 0, PEAR_ERROR_DIE); 00679 } 00680 00681 // Convert the cell references 00682 $cell_array1 = $this->_cellToPackedRowcol($cell1); 00683 if (PEAR::isError($cell_array1)) { 00684 return $cell_array1; 00685 } 00686 list($row1, $col1) = $cell_array1; 00687 $cell_array2 = $this->_cellToPackedRowcol($cell2); 00688 if (PEAR::isError($cell_array2)) { 00689 return $cell_array2; 00690 } 00691 list($row2, $col2) = $cell_array2; 00692 00693 // The ptg value depends on the class of the ptg. 00694 if ($class == 0) { 00695 $ptgArea = pack("C", $this->ptg['ptgArea']); 00696 } elseif ($class == 1) { 00697 $ptgArea = pack("C", $this->ptg['ptgAreaV']); 00698 } elseif ($class == 2) { 00699 $ptgArea = pack("C", $this->ptg['ptgAreaA']); 00700 } else { 00701 // TODO: use real error codes 00702 return $this->raiseError("Unknown class $class", 0, PEAR_ERROR_DIE); 00703 } 00704 return $ptgArea . $row1 . $row2 . $col1. $col2; 00705 } 00706 00715 function _convertRange3d($token) 00716 { 00717 $class = 2; // as far as I know, this is magick. 00718 00719 // Split the ref at the ! symbol 00720 list($ext_ref, $range) = explode('!', $token); 00721 00722 // Convert the external reference part (different for BIFF8) 00723 if ($this->_BIFF_version == 0x0500) { 00724 $ext_ref = $this->_packExtRef($ext_ref); 00725 if (PEAR::isError($ext_ref)) { 00726 return $ext_ref; 00727 } 00728 } elseif ($this->_BIFF_version == 0x0600) { 00729 $ext_ref = $this->_getRefIndex($ext_ref); 00730 if (PEAR::isError($ext_ref)) { 00731 return $ext_ref; 00732 } 00733 } 00734 00735 // Split the range into 2 cell refs 00736 list($cell1, $cell2) = explode(':', $range); 00737 00738 // Convert the cell references 00739 if (preg_match("/^(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)$/", $cell1)) { 00740 $cell_array1 = $this->_cellToPackedRowcol($cell1); 00741 if (PEAR::isError($cell_array1)) { 00742 return $cell_array1; 00743 } 00744 list($row1, $col1) = $cell_array1; 00745 $cell_array2 = $this->_cellToPackedRowcol($cell2); 00746 if (PEAR::isError($cell_array2)) { 00747 return $cell_array2; 00748 } 00749 list($row2, $col2) = $cell_array2; 00750 } else { // It's a rows range (like 26:27) 00751 $cells_array = $this->_rangeToPackedRange($cell1.':'.$cell2); 00752 if (PEAR::isError($cells_array)) { 00753 return $cells_array; 00754 } 00755 list($row1, $col1, $row2, $col2) = $cells_array; 00756 } 00757 00758 // The ptg value depends on the class of the ptg. 00759 if ($class == 0) { 00760 $ptgArea = pack("C", $this->ptg['ptgArea3d']); 00761 } elseif ($class == 1) { 00762 $ptgArea = pack("C", $this->ptg['ptgArea3dV']); 00763 } elseif ($class == 2) { 00764 $ptgArea = pack("C", $this->ptg['ptgArea3dA']); 00765 } else { 00766 return $this->raiseError("Unknown class $class", 0, PEAR_ERROR_DIE); 00767 } 00768 00769 return $ptgArea . $ext_ref . $row1 . $row2 . $col1. $col2; 00770 } 00771 00779 function _convertRef2d($cell) 00780 { 00781 $class = 2; // as far as I know, this is magick. 00782 00783 // Convert the cell reference 00784 $cell_array = $this->_cellToPackedRowcol($cell); 00785 if (PEAR::isError($cell_array)) { 00786 return $cell_array; 00787 } 00788 list($row, $col) = $cell_array; 00789 00790 // The ptg value depends on the class of the ptg. 00791 if ($class == 0) { 00792 $ptgRef = pack("C", $this->ptg['ptgRef']); 00793 } elseif ($class == 1) { 00794 $ptgRef = pack("C", $this->ptg['ptgRefV']); 00795 } elseif ($class == 2) { 00796 $ptgRef = pack("C", $this->ptg['ptgRefA']); 00797 } else { 00798 // TODO: use real error codes 00799 return $this->raiseError("Unknown class $class"); 00800 } 00801 return $ptgRef.$row.$col; 00802 } 00803 00812 function _convertRef3d($cell) 00813 { 00814 $class = 2; // as far as I know, this is magick. 00815 00816 // Split the ref at the ! symbol 00817 list($ext_ref, $cell) = explode('!', $cell); 00818 00819 // Convert the external reference part (different for BIFF8) 00820 if ($this->_BIFF_version == 0x0500) { 00821 $ext_ref = $this->_packExtRef($ext_ref); 00822 if (PEAR::isError($ext_ref)) { 00823 return $ext_ref; 00824 } 00825 } elseif ($this->_BIFF_version == 0x0600) { 00826 $ext_ref = $this->_getRefIndex($ext_ref); 00827 if (PEAR::isError($ext_ref)) { 00828 return $ext_ref; 00829 } 00830 } 00831 00832 // Convert the cell reference part 00833 list($row, $col) = $this->_cellToPackedRowcol($cell); 00834 00835 // The ptg value depends on the class of the ptg. 00836 if ($class == 0) { 00837 $ptgRef = pack("C", $this->ptg['ptgRef3d']); 00838 } elseif ($class == 1) { 00839 $ptgRef = pack("C", $this->ptg['ptgRef3dV']); 00840 } elseif ($class == 2) { 00841 $ptgRef = pack("C", $this->ptg['ptgRef3dA']); 00842 } else { 00843 return $this->raiseError("Unknown class $class", 0, PEAR_ERROR_DIE); 00844 } 00845 00846 return $ptgRef . $ext_ref. $row . $col; 00847 } 00848 00857 function _packExtRef($ext_ref) 00858 { 00859 $ext_ref = preg_replace("/^'/", '', $ext_ref); // Remove leading ' if any. 00860 $ext_ref = preg_replace("/'$/", '', $ext_ref); // Remove trailing ' if any. 00861 00862 // Check if there is a sheet range eg., Sheet1:Sheet2. 00863 if (preg_match("/:/", $ext_ref)) { 00864 list($sheet_name1, $sheet_name2) = explode(':', $ext_ref); 00865 00866 $sheet1 = $this->_getSheetIndex($sheet_name1); 00867 if ($sheet1 == -1) { 00868 return $this->raiseError("Unknown sheet name $sheet_name1 in formula"); 00869 } 00870 $sheet2 = $this->_getSheetIndex($sheet_name2); 00871 if ($sheet2 == -1) { 00872 return $this->raiseError("Unknown sheet name $sheet_name2 in formula"); 00873 } 00874 00875 // Reverse max and min sheet numbers if necessary 00876 if ($sheet1 > $sheet2) { 00877 list($sheet1, $sheet2) = array($sheet2, $sheet1); 00878 } 00879 } else { // Single sheet name only. 00880 $sheet1 = $this->_getSheetIndex($ext_ref); 00881 if ($sheet1 == -1) { 00882 return $this->raiseError("Unknown sheet name $ext_ref in formula"); 00883 } 00884 $sheet2 = $sheet1; 00885 } 00886 00887 // References are stored relative to 0xFFFF. 00888 $offset = -1 - $sheet1; 00889 00890 return pack('vdvv', $offset, 0x00, $sheet1, $sheet2); 00891 } 00892 00903 function _getRefIndex($ext_ref) 00904 { 00905 $ext_ref = preg_replace("/^'/", '', $ext_ref); // Remove leading ' if any. 00906 $ext_ref = preg_replace("/'$/", '', $ext_ref); // Remove trailing ' if any. 00907 00908 // Check if there is a sheet range eg., Sheet1:Sheet2. 00909 if (preg_match("/:/", $ext_ref)) { 00910 list($sheet_name1, $sheet_name2) = explode(':', $ext_ref); 00911 00912 $sheet1 = $this->_getSheetIndex($sheet_name1); 00913 if ($sheet1 == -1) { 00914 return $this->raiseError("Unknown sheet name $sheet_name1 in formula"); 00915 } 00916 $sheet2 = $this->_getSheetIndex($sheet_name2); 00917 if ($sheet2 == -1) { 00918 return $this->raiseError("Unknown sheet name $sheet_name2 in formula"); 00919 } 00920 00921 // Reverse max and min sheet numbers if necessary 00922 if ($sheet1 > $sheet2) { 00923 list($sheet1, $sheet2) = array($sheet2, $sheet1); 00924 } 00925 } else { // Single sheet name only. 00926 $sheet1 = $this->_getSheetIndex($ext_ref); 00927 if ($sheet1 == -1) { 00928 return $this->raiseError("Unknown sheet name $ext_ref in formula"); 00929 } 00930 $sheet2 = $sheet1; 00931 } 00932 00933 // assume all references belong to this document 00934 $supbook_index = 0x00; 00935 $ref = pack('vvv', $supbook_index, $sheet1, $sheet2); 00936 $total_references = count($this->_references); 00937 $index = -1; 00938 for ($i = 0; $i < $total_references; $i++) { 00939 if ($ref == $this->_references[$i]) { 00940 $index = $i; 00941 break; 00942 } 00943 } 00944 // if REF was not found add it to references array 00945 if ($index == -1) { 00946 $this->_references[$total_references] = $ref; 00947 $index = $total_references; 00948 } 00949 00950 return pack('v', $index); 00951 } 00952 00961 function _getSheetIndex($sheet_name) 00962 { 00963 if (!isset($this->_ext_sheets[$sheet_name])) { 00964 return -1; 00965 } else { 00966 return $this->_ext_sheets[$sheet_name]; 00967 } 00968 } 00969 00980 function setExtSheet($name, $index) 00981 { 00982 $this->_ext_sheets[$name] = $index; 00983 } 00984 00992 function _cellToPackedRowcol($cell) 00993 { 00994 $cell = strtoupper($cell); 00995 list($row, $col, $row_rel, $col_rel) = $this->_cellToRowcol($cell); 00996 if ($col >= 256) { 00997 return $this->raiseError("Column in: $cell greater than 255"); 00998 } 00999 // FIXME: change for BIFF8 01000 if ($row >= 16384) { 01001 return $this->raiseError("Row in: $cell greater than 16384 "); 01002 } 01003 01004 // Set the high bits to indicate if row or col are relative. 01005 if ($this->_BIFF_version == 0x0500) { 01006 $row |= $col_rel << 14; 01007 $row |= $row_rel << 15; 01008 $col = pack('C', $col); 01009 } elseif ($this->_BIFF_version == 0x0600) { 01010 $col |= $col_rel << 14; 01011 $col |= $row_rel << 15; 01012 $col = pack('v', $col); 01013 } 01014 $row = pack('v', $row); 01015 01016 return array($row, $col); 01017 } 01018 01027 function _rangeToPackedRange($range) 01028 { 01029 preg_match('/(\$)?(\d+)\:(\$)?(\d+)/', $range, $match); 01030 // return absolute rows if there is a $ in the ref 01031 $row1_rel = empty($match[1]) ? 1 : 0; 01032 $row1 = $match[2]; 01033 $row2_rel = empty($match[3]) ? 1 : 0; 01034 $row2 = $match[4]; 01035 // Convert 1-index to zero-index 01036 $row1--; 01037 $row2--; 01038 // Trick poor inocent Excel 01039 $col1 = 0; 01040 $col2 = 16383; // FIXME: maximum possible value for Excel 5 (change this!!!) 01041 01042 // FIXME: this changes for BIFF8 01043 if (($row1 >= 16384) or ($row2 >= 16384)) { 01044 return $this->raiseError("Row in: $range greater than 16384 "); 01045 } 01046 01047 // Set the high bits to indicate if rows are relative. 01048 if ($this->_BIFF_version == 0x0500) { 01049 $row1 |= $row1_rel << 14; // FIXME: probably a bug 01050 $row2 |= $row2_rel << 15; 01051 $col1 = pack('C', $col1); 01052 $col2 = pack('C', $col2); 01053 } elseif ($this->_BIFF_version == 0x0600) { 01054 $col1 |= $row1_rel << 15; 01055 $col2 |= $row2_rel << 15; 01056 $col1 = pack('v', $col1); 01057 $col2 = pack('v', $col2); 01058 } 01059 $row1 = pack('v', $row1); 01060 $row2 = pack('v', $row2); 01061 01062 return array($row1, $col1, $row2, $col2); 01063 } 01064 01074 function _cellToRowcol($cell) 01075 { 01076 preg_match('/(\$)?([A-I]?[A-Z])(\$)?(\d+)/',$cell,$match); 01077 // return absolute column if there is a $ in the ref 01078 $col_rel = empty($match[1]) ? 1 : 0; 01079 $col_ref = $match[2]; 01080 $row_rel = empty($match[3]) ? 1 : 0; 01081 $row = $match[4]; 01082 01083 // Convert base26 column string to a number. 01084 $expn = strlen($col_ref) - 1; 01085 $col = 0; 01086 $col_ref_length = strlen($col_ref); 01087 for ($i = 0; $i < $col_ref_length; $i++) { 01088 $col += (ord($col_ref{$i}) - ord('A') + 1) * pow(26, $expn); 01089 $expn--; 01090 } 01091 01092 // Convert 1-index to zero-index 01093 $row--; 01094 $col--; 01095 01096 return array($row, $col, $row_rel, $col_rel); 01097 } 01098 01104 function _advance() 01105 { 01106 $i = $this->_current_char; 01107 $formula_length = strlen($this->_formula); 01108 // eat up white spaces 01109 if ($i < $formula_length) { 01110 while ($this->_formula{$i} == " ") { 01111 $i++; 01112 } 01113 01114 if ($i < ($formula_length - 1)) { 01115 $this->_lookahead = $this->_formula{$i+1}; 01116 } 01117 $token = ''; 01118 } 01119 01120 while ($i < $formula_length) { 01121 $token .= $this->_formula{$i}; 01122 if ($i < ($formula_length - 1)) { 01123 $this->_lookahead = $this->_formula{$i+1}; 01124 } else { 01125 $this->_lookahead = ''; 01126 } 01127 01128 if ($this->_match($token) != '') { 01129 //if ($i < strlen($this->_formula) - 1) { 01130 // $this->_lookahead = $this->_formula{$i+1}; 01131 //} 01132 $this->_current_char = $i + 1; 01133 $this->_current_token = $token; 01134 return 1; 01135 } 01136 01137 if ($i < ($formula_length - 2)) { 01138 $this->_lookahead = $this->_formula{$i+2}; 01139 } else { // if we run out of characters _lookahead becomes empty 01140 $this->_lookahead = ''; 01141 } 01142 $i++; 01143 } 01144 //die("Lexical error ".$this->_current_char); 01145 } 01146 01154 function _match($token) 01155 { 01156 switch($token) { 01157 case SPREADSHEET_EXCEL_WRITER_ADD: 01158 return $token; 01159 break; 01160 case SPREADSHEET_EXCEL_WRITER_SUB: 01161 return $token; 01162 break; 01163 case SPREADSHEET_EXCEL_WRITER_MUL: 01164 return $token; 01165 break; 01166 case SPREADSHEET_EXCEL_WRITER_DIV: 01167 return $token; 01168 break; 01169 case SPREADSHEET_EXCEL_WRITER_OPEN: 01170 return $token; 01171 break; 01172 case SPREADSHEET_EXCEL_WRITER_CLOSE: 01173 return $token; 01174 break; 01175 case SPREADSHEET_EXCEL_WRITER_COMA: 01176 return $token; 01177 break; 01178 case SPREADSHEET_EXCEL_WRITER_SEMICOLON: 01179 return $token; 01180 break; 01181 case SPREADSHEET_EXCEL_WRITER_GT: 01182 if ($this->_lookahead == '=') { // it's a GE token 01183 break; 01184 } 01185 return $token; 01186 break; 01187 case SPREADSHEET_EXCEL_WRITER_LT: 01188 // it's a LE or a NE token 01189 if (($this->_lookahead == '=') or ($this->_lookahead == '>')) { 01190 break; 01191 } 01192 return $token; 01193 break; 01194 case SPREADSHEET_EXCEL_WRITER_GE: 01195 return $token; 01196 break; 01197 case SPREADSHEET_EXCEL_WRITER_LE: 01198 return $token; 01199 break; 01200 case SPREADSHEET_EXCEL_WRITER_EQ: 01201 return $token; 01202 break; 01203 case SPREADSHEET_EXCEL_WRITER_NE: 01204 return $token; 01205 break; 01206 default: 01207 // if it's a reference 01208 if (preg_match('/^\$?[A-Ia-i]?[A-Za-z]\$?[0-9]+$/',$token) and 01209 !preg_match("/[0-9]/",$this->_lookahead) and 01210 ($this->_lookahead != ':') and ($this->_lookahead != '.') and 01211 ($this->_lookahead != '!')) 01212 { 01213 return $token; 01214 } 01215 // If it's an external reference (Sheet1!A1 or Sheet1:Sheet2!A1) 01216 elseif (preg_match("/^\w+(\:\w+)?\![A-Ia-i]?[A-Za-z][0-9]+$/u",$token) and 01217 !preg("/[0-9]/",$this->_lookahead) and 01218 ($this->_lookahead != ':') and ($this->_lookahead != '.')) 01219 { 01220 return $token; 01221 } 01222 // If it's an external reference ('Sheet1'!A1 or 'Sheet1:Sheet2'!A1) 01223 elseif (preg_match("/^'[\w -]+(\:[\w -]+)?'\![A-Ia-i]?[A-Za-z][0-9]+$/u",$token) and 01224 !preg("/[0-9]/",$this->_lookahead) and 01225 ($this->_lookahead != ':') and ($this->_lookahead != '.')) 01226 { 01227 return $token; 01228 } 01229 // if it's a range (A1:A2) 01230 elseif (preg_match("/^(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+:(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+$/",$token) and 01231 !preg_match("/[0-9]/",$this->_lookahead)) 01232 { 01233 return $token; 01234 } 01235 // if it's a range (A1..A2) 01236 elseif (preg_match("/^(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+\.\.(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+$/",$token) and 01237 !preg_match("/[0-9]/",$this->_lookahead)) 01238 { 01239 return $token; 01240 } 01241 // If it's an external range like Sheet1!A1 or Sheet1:Sheet2!A1:B2 01242 elseif (preg_match("/^\w+(\:\w+)?\!([A-Ia-i]?[A-Za-z])?[0-9]+:([A-Ia-i]?[A-Za-z])?[0-9]+$/u",$token) and 01243 !preg_match("/[0-9]/",$this->_lookahead)) 01244 { 01245 return $token; 01246 } 01247 // If it's an external range like 'Sheet1'!A1 or 'Sheet1:Sheet2'!A1:B2 01248 elseif (preg_match("/^'[\w -]+(\:[\w -]+)?'\!([A-Ia-i]?[A-Za-z])?[0-9]+:([A-Ia-i]?[A-Za-z])?[0-9]+$/u",$token) and 01249 !preg_match("/[0-9]/",$this->_lookahead)) 01250 { 01251 return $token; 01252 } 01253 // If it's a number (check that it's not a sheet name or range) 01254 elseif (is_numeric($token) and 01255 (!is_numeric($token.$this->_lookahead) or ($this->_lookahead == '')) and 01256 ($this->_lookahead != '!') and ($this->_lookahead != ':')) 01257 { 01258 return $token; 01259 } 01260 // If it's a string (of maximum 255 characters) 01261 elseif (preg_match("/^\"[^\"]{0,255}\"$/",$token)) 01262 { 01263 return $token; 01264 } 01265 // if it's a function call 01266 elseif (preg_match("/^[A-Z0-9\xc0-\xdc\.]+$/i",$token) and ($this->_lookahead == "(")) 01267 { 01268 return $token; 01269 } 01270 return ''; 01271 } 01272 } 01273 01282 function parse($formula) 01283 { 01284 $this->_current_char = 0; 01285 $this->_formula = $formula; 01286 $this->_lookahead = $formula{1}; 01287 $this->_advance(); 01288 $this->_parse_tree = $this->_condition(); 01289 if (PEAR::isError($this->_parse_tree)) { 01290 return $this->_parse_tree; 01291 } 01292 return true; 01293 } 01294 01302 function _condition() 01303 { 01304 $result = $this->_expression(); 01305 if (PEAR::isError($result)) { 01306 return $result; 01307 } 01308 if ($this->_current_token == SPREADSHEET_EXCEL_WRITER_LT) { 01309 $this->_advance(); 01310 $result2 = $this->_expression(); 01311 if (PEAR::isError($result2)) { 01312 return $result2; 01313 } 01314 $result = $this->_createTree('ptgLT', $result, $result2); 01315 } elseif ($this->_current_token == SPREADSHEET_EXCEL_WRITER_GT) { 01316 $this->_advance(); 01317 $result2 = $this->_expression(); 01318 if (PEAR::isError($result2)) { 01319 return $result2; 01320 } 01321 $result = $this->_createTree('ptgGT', $result, $result2); 01322 } elseif ($this->_current_token == SPREADSHEET_EXCEL_WRITER_LE) { 01323 $this->_advance(); 01324 $result2 = $this->_expression(); 01325 if (PEAR::isError($result2)) { 01326 return $result2; 01327 } 01328 $result = $this->_createTree('ptgLE', $result, $result2); 01329 } elseif ($this->_current_token == SPREADSHEET_EXCEL_WRITER_GE) { 01330 $this->_advance(); 01331 $result2 = $this->_expression(); 01332 if (PEAR::isError($result2)) { 01333 return $result2; 01334 } 01335 $result = $this->_createTree('ptgGE', $result, $result2); 01336 } elseif ($this->_current_token == SPREADSHEET_EXCEL_WRITER_EQ) { 01337 $this->_advance(); 01338 $result2 = $this->_expression(); 01339 if (PEAR::isError($result2)) { 01340 return $result2; 01341 } 01342 $result = $this->_createTree('ptgEQ', $result, $result2); 01343 } elseif ($this->_current_token == SPREADSHEET_EXCEL_WRITER_NE) { 01344 $this->_advance(); 01345 $result2 = $this->_expression(); 01346 if (PEAR::isError($result2)) { 01347 return $result2; 01348 } 01349 $result = $this->_createTree('ptgNE', $result, $result2); 01350 } 01351 return $result; 01352 } 01353 01363 function _expression() 01364 { 01365 // If it's a string return a string node 01366 if (preg_match("/^\"[^\"]{0,255}\"$/", $this->_current_token)) { 01367 $result = $this->_createTree($this->_current_token, '', ''); 01368 $this->_advance(); 01369 return $result; 01370 } elseif ($this->_current_token == SPREADSHEET_EXCEL_WRITER_SUB) { 01371 // catch "-" Term 01372 $this->_advance(); 01373 $result2 = $this->_expression(); 01374 $result = $this->_createTree('ptgUminus', $result2, ''); 01375 return $result; 01376 } 01377 $result = $this->_term(); 01378 if (PEAR::isError($result)) { 01379 return $result; 01380 } 01381 while (($this->_current_token == SPREADSHEET_EXCEL_WRITER_ADD) or 01382 ($this->_current_token == SPREADSHEET_EXCEL_WRITER_SUB)) { 01383 01384 if ($this->_current_token == SPREADSHEET_EXCEL_WRITER_ADD) { 01385 $this->_advance(); 01386 $result2 = $this->_term(); 01387 if (PEAR::isError($result2)) { 01388 return $result2; 01389 } 01390 $result = $this->_createTree('ptgAdd', $result, $result2); 01391 } else { 01392 $this->_advance(); 01393 $result2 = $this->_term(); 01394 if (PEAR::isError($result2)) { 01395 return $result2; 01396 } 01397 $result = $this->_createTree('ptgSub', $result, $result2); 01398 } 01399 } 01400 return $result; 01401 } 01402 01411 function _parenthesizedExpression() 01412 { 01413 $result = $this->_createTree('ptgParen', $this->_expression(), ''); 01414 return $result; 01415 } 01416 01424 function _term() 01425 { 01426 $result = $this->_fact(); 01427 if (PEAR::isError($result)) { 01428 return $result; 01429 } 01430 while (($this->_current_token == SPREADSHEET_EXCEL_WRITER_MUL) or 01431 ($this->_current_token == SPREADSHEET_EXCEL_WRITER_DIV)) { 01432 01433 if ($this->_current_token == SPREADSHEET_EXCEL_WRITER_MUL) { 01434 $this->_advance(); 01435 $result2 = $this->_fact(); 01436 if (PEAR::isError($result2)) { 01437 return $result2; 01438 } 01439 $result = $this->_createTree('ptgMul', $result, $result2); 01440 } else { 01441 $this->_advance(); 01442 $result2 = $this->_fact(); 01443 if (PEAR::isError($result2)) { 01444 return $result2; 01445 } 01446 $result = $this->_createTree('ptgDiv', $result, $result2); 01447 } 01448 } 01449 return $result; 01450 } 01451 01463 function _fact() 01464 { 01465 if ($this->_current_token == SPREADSHEET_EXCEL_WRITER_OPEN) { 01466 $this->_advance(); // eat the "(" 01467 $result = $this->_parenthesizedExpression(); 01468 if ($this->_current_token != SPREADSHEET_EXCEL_WRITER_CLOSE) { 01469 return $this->raiseError("')' token expected."); 01470 } 01471 $this->_advance(); // eat the ")" 01472 return $result; 01473 } 01474 // if it's a reference 01475 if (preg_match('/^\$?[A-Ia-i]?[A-Za-z]\$?[0-9]+$/',$this->_current_token)) 01476 { 01477 $result = $this->_createTree($this->_current_token, '', ''); 01478 $this->_advance(); 01479 return $result; 01480 } 01481 // If it's an external reference (Sheet1!A1 or Sheet1:Sheet2!A1) 01482 elseif (preg_match("/^\w+(\:\w+)?\![A-Ia-i]?[A-Za-z][0-9]+$/u",$this->_current_token)) 01483 { 01484 $result = $this->_createTree($this->_current_token, '', ''); 01485 $this->_advance(); 01486 return $result; 01487 } 01488 // If it's an external reference ('Sheet1'!A1 or 'Sheet1:Sheet2'!A1) 01489 elseif (preg_match("/^'[\w -]+(\:[\w -]+)?'\![A-Ia-i]?[A-Za-z][0-9]+$/u",$this->_current_token)) 01490 { 01491 $result = $this->_createTree($this->_current_token, '', ''); 01492 $this->_advance(); 01493 return $result; 01494 } 01495 // if it's a range 01496 elseif (preg_match("/^(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+:(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+$/",$this->_current_token) or 01497 preg_match("/^(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+\.\.(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+$/",$this->_current_token)) 01498 { 01499 $result = $this->_current_token; 01500 $this->_advance(); 01501 return $result; 01502 } 01503 // If it's an external range (Sheet1!A1 or Sheet1!A1:B2) 01504 elseif (preg_match("/^\w+(\:\w+)?\!([A-Ia-i]?[A-Za-z])?[0-9]+:([A-Ia-i]?[A-Za-z])?[0-9]+$/u",$this->_current_token)) 01505 { 01506 $result = $this->_current_token; 01507 $this->_advance(); 01508 return $result; 01509 } 01510 // If it's an external range ('Sheet1'!A1 or 'Sheet1'!A1:B2) 01511 elseif (preg_match("/^'[\w -]+(\:[\w -]+)?'\!([A-Ia-i]?[A-Za-z])?[0-9]+:([A-Ia-i]?[A-Za-z])?[0-9]+$/u",$this->_current_token)) 01512 { 01513 $result = $this->_current_token; 01514 $this->_advance(); 01515 return $result; 01516 } 01517 elseif (is_numeric($this->_current_token)) 01518 { 01519 $result = $this->_createTree($this->_current_token, '', ''); 01520 $this->_advance(); 01521 return $result; 01522 } 01523 // if it's a function call 01524 elseif (preg_match("/^[A-Z0-9\xc0-\xdc\.]+$/",$this->_current_token)) 01525 { 01526 $result = $this->_func(); 01527 return $result; 01528 } 01529 return $this->raiseError("Syntax error: ".$this->_current_token. 01530 ", lookahead: ".$this->_lookahead. 01531 ", current char: ".$this->_current_char); 01532 } 01533 01541 function _func() 01542 { 01543 $num_args = 0; // number of arguments received 01544 $function = strtoupper($this->_current_token); 01545 $result = ''; // initialize result 01546 $this->_advance(); 01547 $this->_advance(); // eat the "(" 01548 while ($this->_current_token != ')') { 01549 01550 if ($num_args > 0) { 01551 if ($this->_current_token == SPREADSHEET_EXCEL_WRITER_COMA or 01552 $this->_current_token == SPREADSHEET_EXCEL_WRITER_SEMICOLON) 01553 { 01554 $this->_advance(); // eat the "," or ";" 01555 } else { 01556 return $this->raiseError("Syntax error: comma expected in ". 01557 "function $function, arg #{$num_args}"); 01558 } 01559 $result2 = $this->_condition(); 01560 if (PEAR::isError($result2)) { 01561 return $result2; 01562 } 01563 $result = $this->_createTree('arg', $result, $result2); 01564 } else { // first argument 01565 $result2 = $this->_condition(); 01566 if (PEAR::isError($result2)) { 01567 return $result2; 01568 } 01569 $result = $this->_createTree('arg', '', $result2); 01570 } 01571 $num_args++; 01572 } 01573 if (!isset($this->_functions[$function])) { 01574 return $this->raiseError("Function $function() doesn't exist"); 01575 } 01576 $args = $this->_functions[$function][1]; 01577 // If fixed number of args eg. TIME($i,$j,$k). Check that the number of args is valid. 01578 if (($args >= 0) and ($args != $num_args)) { 01579 return $this->raiseError("Incorrect number of arguments in function $function() "); 01580 } 01581 01582 $result = $this->_createTree($function, $result, $num_args); 01583 $this->_advance(); // eat the ")" 01584 return $result; 01585 } 01586 01597 function _createTree($value, $left, $right) 01598 { 01599 return array('value' => $value, 'left' => $left, 'right' => $right); 01600 } 01601 01629 function toReversePolish($tree = array()) 01630 { 01631 $polish = ""; // the string we are going to return 01632 if (empty($tree)) { // If it's the first call use _parse_tree 01633 $tree = $this->_parse_tree; 01634 } 01635 if (is_array($tree['left'])) { 01636 $converted_tree = $this->toReversePolish($tree['left']); 01637 if (PEAR::isError($converted_tree)) { 01638 return $converted_tree; 01639 } 01640 $polish .= $converted_tree; 01641 } elseif ($tree['left'] != '') { // It's a final node 01642 $converted_tree = $this->_convert($tree['left']); 01643 if (PEAR::isError($converted_tree)) { 01644 return $converted_tree; 01645 } 01646 $polish .= $converted_tree; 01647 } 01648 if (is_array($tree['right'])) { 01649 $converted_tree = $this->toReversePolish($tree['right']); 01650 if (PEAR::isError($converted_tree)) { 01651 return $converted_tree; 01652 } 01653 $polish .= $converted_tree; 01654 } elseif ($tree['right'] != '') { // It's a final node 01655 $converted_tree = $this->_convert($tree['right']); 01656 if (PEAR::isError($converted_tree)) { 01657 return $converted_tree; 01658 } 01659 $polish .= $converted_tree; 01660 } 01661 // if it's a function convert it here (so we can set it's arguments) 01662 if (preg_match("/^[A-Z0-9\xc0-\xdc\.]+$/",$tree['value']) and 01663 !preg_match('/^([A-Ia-i]?[A-Za-z])(\d+)$/',$tree['value']) and 01664 !preg_match("/^[A-Ia-i]?[A-Za-z](\d+)\.\.[A-Ia-i]?[A-Za-z](\d+)$/",$tree['value']) and 01665 !is_numeric($tree['value']) and 01666 !isset($this->ptg[$tree['value']])) 01667 { 01668 // left subtree for a function is always an array. 01669 if ($tree['left'] != '') { 01670 $left_tree = $this->toReversePolish($tree['left']); 01671 } else { 01672 $left_tree = ''; 01673 } 01674 if (PEAR::isError($left_tree)) { 01675 return $left_tree; 01676 } 01677 // add it's left subtree and return. 01678 return $left_tree.$this->_convertFunction($tree['value'], $tree['right']); 01679 } else { 01680 $converted_tree = $this->_convert($tree['value']); 01681 if (PEAR::isError($converted_tree)) { 01682 return $converted_tree; 01683 } 01684 } 01685 $polish .= $converted_tree; 01686 return $polish; 01687 } 01688 } 01689 ?>
1.7.6.1 
