Merge branch 'main' into issue-3911issue-3911

1 files changed, 0 insertions, 996 deletions

diff --git a/vendor/write_excel/Parser.php b/vendor/write_excel/Parser.php
deleted file mode 100644
index 1646f74..0000000
--- a/vendor/write_excel/Parser.php
+++ /dev/null
@@ -1,996 +0,0 @@
-<?php
-/**
-*  Class for parsing Excel formulas
-*
-*  License Information:
-*
-*    Spreadsheet::WriteExcel:  A library for generating Excel Spreadsheets
-*    Copyright (C) 2002 Xavier Noguer xnoguer@rezebra.com
-*
-*    This library is free software; you can redistribute it and/or
-*    modify it under the terms of the GNU Lesser General Public
-*    License as published by the Free Software Foundation; either
-*    version 2.1 of the License, or (at your option) any later version.
-*
-*    This library is distributed in the hope that it will be useful,
-*    but WITHOUT ANY WARRANTY; without even the implied warranty of
-*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-*    Lesser General Public License for more details.
-*
-*    You should have received a copy of the GNU Lesser General Public
-*    License along with this library; if not, write to the Free Software
-*    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-*/
-
-/**
-* @const ADD token identifier for character "+"
-*/
-define('ADD',"+");
-
-/**
-* @const SUB token identifier for character "-"
-*/
-define('SUB',"-");
-
-/**
-* @const EQUAL token identifier for character "="
-*/
-define('EQUAL',"=");
-
-/**
-* @const MUL token identifier for character "*"
-*/
-define('MUL',"*");
-
-/**
-* @const DIV token identifier for character "/"
-*/
-define('DIV',"/");
-
-/**
-* @const OPEN token identifier for character "("
-*/
-define('OPEN',"(");
-
-/**
-* @const CLOSE token identifier for character ")"
-*/
-define('CLOSE',")");
-
-/**
-* @const COMA token identifier for character ","
-*/
-define('COMA',",");
-
-/**
-* Class for parsing Excel formulas
-*
-* @author Xavier Noguer <xnoguer@rezebra.com>
-* @package Spreadsheet_WriteExcel
-*/
-class Parser
-  {
-/**
-* The class constructor
-*
-* @param integer $byte_order The byte order (Little endian or Big endian) of the architecture
-                             (optional). 1 => big endian, 0 (default) => little endian.
-*/
-  function __construct($byte_order = 0)
-    {
-    $this->_current_char  = 0;        // The index of the character we are currently looking at.
-    $this->_current_token = '';       // The token we are working on.
-    $this->_formula       = "";       // The formula to parse.
-    $this->_lookahead     = '';       // The character ahead of the current char.
-    $this->_parse_tree    = '';       // The parse tree to be generated.
-    $this->_initialize_hashes();      // Initialize the hashes: ptg's and function's ptg's
-    $this->_byte_order = $byte_order; // Little Endian or Big Endian
-    $this->_func_args  = 0;           // Number of arguments for the current function
-    $this->_volatile   = 0;
-    }
-
-/**
-* Initialize the ptg and function hashes.
-*/
-  function _initialize_hashes()
-    {
-    // The Excel ptg indices
-    $this->ptg = array(
-        'ptgExp'       => 0x01,
-        'ptgTbl'       => 0x02,
-        'ptgAdd'       => 0x03,
-        'ptgSub'       => 0x04,
-        'ptgMul'       => 0x05,
-        'ptgDiv'       => 0x06,
-        'ptgPower'     => 0x07,
-        'ptgConcat'    => 0x08,
-        'ptgLT'        => 0x09,
-        'ptgLE'        => 0x0A,
-        'ptgEQ'        => 0x0B,
-        'ptgGE'        => 0x0C,
-        'ptgGT'        => 0x0D,
-        'ptgNE'        => 0x0E,
-        'ptgIsect'     => 0x0F,
-        'ptgUnion'     => 0x10,
-        'ptgRange'     => 0x11,
-        'ptgUplus'     => 0x12,
-        'ptgUminus'    => 0x13,
-        'ptgPercent'   => 0x14,
-        'ptgParen'     => 0x15,
-        'ptgMissArg'   => 0x16,
-        'ptgStr'       => 0x17,
-        'ptgAttr'      => 0x19,
-        'ptgSheet'     => 0x1A,
-        'ptgEndSheet'  => 0x1B,
-        'ptgErr'       => 0x1C,
-        'ptgBool'      => 0x1D,
-        'ptgInt'       => 0x1E,
-        'ptgNum'       => 0x1F,
-        'ptgArray'     => 0x20,
-        'ptgFunc'      => 0x21,
-        'ptgFuncVar'   => 0x22,
-        'ptgName'      => 0x23,
-        'ptgRef'       => 0x24,
-        'ptgArea'      => 0x25,
-        'ptgMemArea'   => 0x26,
-        'ptgMemErr'    => 0x27,
-        'ptgMemNoMem'  => 0x28,
-        'ptgMemFunc'   => 0x29,
-        'ptgRefErr'    => 0x2A,
-        'ptgAreaErr'   => 0x2B,
-        'ptgRefN'      => 0x2C,
-        'ptgAreaN'     => 0x2D,
-        'ptgMemAreaN'  => 0x2E,
-        'ptgMemNoMemN' => 0x2F,
-        'ptgNameX'     => 0x39,
-        'ptgRef3d'     => 0x3A,
-        'ptgArea3d'    => 0x3B,
-        'ptgRefErr3d'  => 0x3C,
-        'ptgAreaErr3d' => 0x3D,
-        'ptgArrayV'    => 0x40,
-        'ptgFuncV'     => 0x41,
-        'ptgFuncVarV'  => 0x42,
-        'ptgNameV'     => 0x43,
-        'ptgRefV'      => 0x44,
-        'ptgAreaV'     => 0x45,
-        'ptgMemAreaV'  => 0x46,
-        'ptgMemErrV'   => 0x47,
-        'ptgMemNoMemV' => 0x48,
-        'ptgMemFuncV'  => 0x49,
-        'ptgRefErrV'   => 0x4A,
-        'ptgAreaErrV'  => 0x4B,
-        'ptgRefNV'     => 0x4C,
-        'ptgAreaNV'    => 0x4D,
-        'ptgMemAreaNV' => 0x4E,
-        'ptgMemNoMemN' => 0x4F,
-        'ptgFuncCEV'   => 0x58,
-        'ptgNameXV'    => 0x59,
-        'ptgRef3dV'    => 0x5A,
-        'ptgArea3dV'   => 0x5B,
-        'ptgRefErr3dV' => 0x5C,
-        'ptgAreaErr3d' => 0x5D,
-        'ptgArrayA'    => 0x60,
-        'ptgFuncA'     => 0x61,
-        'ptgFuncVarA'  => 0x62,
-        'ptgNameA'     => 0x63,
-        'ptgRefA'      => 0x64,
-        'ptgAreaA'     => 0x65,
-        'ptgMemAreaA'  => 0x66,
-        'ptgMemErrA'   => 0x67,
-        'ptgMemNoMemA' => 0x68,
-        'ptgMemFuncA'  => 0x69,
-        'ptgRefErrA'   => 0x6A,
-        'ptgAreaErrA'  => 0x6B,
-        'ptgRefNA'     => 0x6C,
-        'ptgAreaNA'    => 0x6D,
-        'ptgMemAreaNA' => 0x6E,
-        'ptgMemNoMemN' => 0x6F,
-        'ptgFuncCEA'   => 0x78,
-        'ptgNameXA'    => 0x79,
-        'ptgRef3dA'    => 0x7A,
-        'ptgArea3dA'   => 0x7B,
-        'ptgRefErr3dA' => 0x7C,
-        'ptgAreaErr3d' => 0x7D
-        );
-
-    // Thanks to Michael Meeks and Gnumeric for the initial arg values.
-    //
-    // The following hash was generated by "function_locale.pl" in the distro.
-    // Refer to function_locale.pl for non-English function names.
-    //
-    // The array elements are as follow:
-    // ptg:   The Excel function ptg code.
-    // args:  The number of arguments that the function takes:
-    //           >=0 is a fixed number of arguments.
-    //           -1  is a variable  number of arguments.
-    // class: The reference, value or array class of the function args.
-    // vol:   The function is volatile.
-    //
-    $this->_functions = array(
-          // function                  ptg  args  class  vol
-          'COUNT'           => array(   0,   -1,    0,    0 ),
-          'IF'              => array(   1,   -1,    1,    0 ),
-          'ISNA'            => array(   2,    1,    1,    0 ),
-          'ISERROR'         => array(   3,    1,    1,    0 ),
-          'SUM'             => array(   4,   -1,    0,    0 ),
-          'AVERAGE'         => array(   5,   -1,    0,    0 ),
-          'MIN'             => array(   6,   -1,    0,    0 ),
-          'MAX'             => array(   7,   -1,    0,    0 ),
-          'ROW'             => array(   8,   -1,    0,    0 ),
-          'COLUMN'          => array(   9,   -1,    0,    0 ),
-          'NA'              => array(  10,    0,    0,    0 ),
-          'NPV'             => array(  11,   -1,    1,    0 ),
-          'STDEV'           => array(  12,   -1,    0,    0 ),
-          'DOLLAR'          => array(  13,   -1,    1,    0 ),
-          'FIXED'           => array(  14,   -1,    1,    0 ),
-          'SIN'             => array(  15,    1,    1,    0 ),
-          'COS'             => array(  16,    1,    1,    0 ),
-          'TAN'             => array(  17,    1,    1,    0 ),
-          'ATAN'            => array(  18,    1,    1,    0 ),
-          'PI'              => array(  19,    0,    1,    0 ),
-          'SQRT'            => array(  20,    1,    1,    0 ),
-          'EXP'             => array(  21,    1,    1,    0 ),
-          'LN'              => array(  22,    1,    1,    0 ),
-          'LOG10'           => array(  23,    1,    1,    0 ),
-          'ABS'             => array(  24,    1,    1,    0 ),
-          'INT'             => array(  25,    1,    1,    0 ),
-          'SIGN'            => array(  26,    1,    1,    0 ),
-          'ROUND'           => array(  27,    2,    1,    0 ),
-          'LOOKUP'          => array(  28,   -1,    0,    0 ),
-          'INDEX'           => array(  29,   -1,    0,    1 ),
-          'REPT'            => array(  30,    2,    1,    0 ),
-          'MID'             => array(  31,    3,    1,    0 ),
-          'LEN'             => array(  32,    1,    1,    0 ),
-          'VALUE'           => array(  33,    1,    1,    0 ),
-          'TRUE'            => array(  34,    0,    1,    0 ),
-          'FALSE'           => array(  35,    0,    1,    0 ),
-          'AND'             => array(  36,   -1,    0,    0 ),
-          'OR'              => array(  37,   -1,    0,    0 ),
-          'NOT'             => array(  38,    1,    1,    0 ),
-          'MOD'             => array(  39,    2,    1,    0 ),
-          'DCOUNT'          => array(  40,    3,    0,    0 ),
-          'DSUM'            => array(  41,    3,    0,    0 ),
-          'DAVERAGE'        => array(  42,    3,    0,    0 ),
-          'DMIN'            => array(  43,    3,    0,    0 ),
-          'DMAX'            => array(  44,    3,    0,    0 ),
-          'DSTDEV'          => array(  45,    3,    0,    0 ),
-          'VAR'             => array(  46,   -1,    0,    0 ),
-          'DVAR'            => array(  47,    3,    0,    0 ),
-          'TEXT'            => array(  48,    2,    1,    0 ),
-          'LINEST'          => array(  49,   -1,    0,    0 ),
-          'TREND'           => array(  50,   -1,    0,    0 ),
-          'LOGEST'          => array(  51,   -1,    0,    0 ),
-          'GROWTH'          => array(  52,   -1,    0,    0 ),
-          'PV'              => array(  56,   -1,    1,    0 ),
-          'FV'              => array(  57,   -1,    1,    0 ),
-          'NPER'            => array(  58,   -1,    1,    0 ),
-          'PMT'             => array(  59,   -1,    1,    0 ),
-          'RATE'            => array(  60,   -1,    1,    0 ),
-          'MIRR'            => array(  61,    3,    0,    0 ),
-          'IRR'             => array(  62,   -1,    0,    0 ),
-          'RAND'            => array(  63,    0,    1,    1 ),
-          'MATCH'           => array(  64,   -1,    0,    0 ),
-          'DATE'            => array(  65,    3,    1,    0 ),
-          'TIME'            => array(  66,    3,    1,    0 ),
-          'DAY'             => array(  67,    1,    1,    0 ),
-          'MONTH'           => array(  68,    1,    1,    0 ),
-          'YEAR'            => array(  69,    1,    1,    0 ),
-          'WEEKDAY'         => array(  70,   -1,    1,    0 ),
-          'HOUR'            => array(  71,    1,    1,    0 ),
-          'MINUTE'          => array(  72,    1,    1,    0 ),
-          'SECOND'          => array(  73,    1,    1,    0 ),
-          'NOW'             => array(  74,    0,    1,    1 ),
-          'AREAS'           => array(  75,    1,    0,    1 ),
-          'ROWS'            => array(  76,    1,    0,    1 ),
-          'COLUMNS'         => array(  77,    1,    0,    1 ),
-          'OFFSET'          => array(  78,   -1,    0,    1 ),
-          'SEARCH'          => array(  82,   -1,    1,    0 ),
-          'TRANSPOSE'       => array(  83,    1,    1,    0 ),
-          'TYPE'            => array(  86,    1,    1,    0 ),
-          'ATAN2'           => array(  97,    2,    1,    0 ),
-          'ASIN'            => array(  98,    1,    1,    0 ),
-          'ACOS'            => array(  99,    1,    1,    0 ),
-          'CHOOSE'          => array( 100,   -1,    1,    0 ),
-          'HLOOKUP'         => array( 101,   -1,    0,    0 ),
-          'VLOOKUP'         => array( 102,   -1,    0,    0 ),
-          'ISREF'           => array( 105,    1,    0,    0 ),
-          'LOG'             => array( 109,   -1,    1,    0 ),
-          'CHAR'            => array( 111,    1,    1,    0 ),
-          'LOWER'           => array( 112,    1,    1,    0 ),
-          'UPPER'           => array( 113,    1,    1,    0 ),
-          'PROPER'          => array( 114,    1,    1,    0 ),
-          'LEFT'            => array( 115,   -1,    1,    0 ),
-          'RIGHT'           => array( 116,   -1,    1,    0 ),
-          'EXACT'           => array( 117,    2,    1,    0 ),
-          'TRIM'            => array( 118,    1,    1,    0 ),
-          'REPLACE'         => array( 119,    4,    1,    0 ),
-          'SUBSTITUTE'      => array( 120,   -1,    1,    0 ),
-          'CODE'            => array( 121,    1,    1,    0 ),
-          'FIND'            => array( 124,   -1,    1,    0 ),
-          'CELL'            => array( 125,   -1,    0,    1 ),
-          'ISERR'           => array( 126,    1,    1,    0 ),
-          'ISTEXT'          => array( 127,    1,    1,    0 ),
-          'ISNUMBER'        => array( 128,    1,    1,    0 ),
-          'ISBLANK'         => array( 129,    1,    1,    0 ),
-          'T'               => array( 130,    1,    0,    0 ),
-          'N'               => array( 131,    1,    0,    0 ),
-          'DATEVALUE'       => array( 140,    1,    1,    0 ),
-          'TIMEVALUE'       => array( 141,    1,    1,    0 ),
-          'SLN'             => array( 142,    3,    1,    0 ),
-          'SYD'             => array( 143,    4,    1,    0 ),
-          'DDB'             => array( 144,   -1,    1,    0 ),
-          'INDIRECT'        => array( 148,   -1,    1,    1 ),
-          'CALL'            => array( 150,   -1,    1,    0 ),
-          'CLEAN'           => array( 162,    1,    1,    0 ),
-          'MDETERM'         => array( 163,    1,    2,    0 ),
-          'MINVERSE'        => array( 164,    1,    2,    0 ),
-          'MMULT'           => array( 165,    2,    2,    0 ),
-          'IPMT'            => array( 167,   -1,    1,    0 ),
-          'PPMT'            => array( 168,   -1,    1,    0 ),
-          'COUNTA'          => array( 169,   -1,    0,    0 ),
-          'PRODUCT'         => array( 183,   -1,    0,    0 ),
-          'FACT'            => array( 184,    1,    1,    0 ),
-          'DPRODUCT'        => array( 189,    3,    0,    0 ),
-          'ISNONTEXT'       => array( 190,    1,    1,    0 ),
-          'STDEVP'          => array( 193,   -1,    0,    0 ),
-          'VARP'            => array( 194,   -1,    0,    0 ),
-          'DSTDEVP'         => array( 195,    3,    0,    0 ),
-          'DVARP'           => array( 196,    3,    0,    0 ),
-          'TRUNC'           => array( 197,   -1,    1,    0 ),
-          'ISLOGICAL'       => array( 198,    1,    1,    0 ),
-          'DCOUNTA'         => array( 199,    3,    0,    0 ),
-          'ROUNDUP'         => array( 212,    2,    1,    0 ),
-          'ROUNDDOWN'       => array( 213,    2,    1,    0 ),
-          'RANK'            => array( 216,   -1,    0,    0 ),
-          'ADDRESS'         => array( 219,   -1,    1,    0 ),
-          'DAYS360'         => array( 220,   -1,    1,    0 ),
-          'TODAY'           => array( 221,    0,    1,    1 ),
-          'VDB'             => array( 222,   -1,    1,    0 ),
-          'MEDIAN'          => array( 227,   -1,    0,    0 ),
-          'SUMPRODUCT'      => array( 228,   -1,    2,    0 ),
-          'SINH'            => array( 229,    1,    1,    0 ),
-          'COSH'            => array( 230,    1,    1,    0 ),
-          'TANH'            => array( 231,    1,    1,    0 ),
-          'ASINH'           => array( 232,    1,    1,    0 ),
-          'ACOSH'           => array( 233,    1,    1,    0 ),
-          'ATANH'           => array( 234,    1,    1,    0 ),
-          'DGET'            => array( 235,    3,    0,    0 ),
-          'INFO'            => array( 244,    1,    1,    1 ),
-          'DB'              => array( 247,   -1,    1,    0 ),
-          'FREQUENCY'       => array( 252,    2,    0,    0 ),
-          'ERROR.TYPE'      => array( 261,    1,    1,    0 ),
-          'REGISTER.ID'     => array( 267,   -1,    1,    0 ),
-          'AVEDEV'          => array( 269,   -1,    0,    0 ),
-          'BETADIST'        => array( 270,   -1,    1,    0 ),
-          'GAMMALN'         => array( 271,    1,    1,    0 ),
-          'BETAINV'         => array( 272,   -1,    1,    0 ),
-          'BINOMDIST'       => array( 273,    4,    1,    0 ),
-          'CHIDIST'         => array( 274,    2,    1,    0 ),
-          'CHIINV'          => array( 275,    2,    1,    0 ),
-          'COMBIN'          => array( 276,    2,    1,    0 ),
-          'CONFIDENCE'      => array( 277,    3,    1,    0 ),
-          'CRITBINOM'       => array( 278,    3,    1,    0 ),
-          'EVEN'            => array( 279,    1,    1,    0 ),
-          'EXPONDIST'       => array( 280,    3,    1,    0 ),
-          'FDIST'           => array( 281,    3,    1,    0 ),
-          'FINV'            => array( 282,    3,    1,    0 ),
-          'FISHER'          => array( 283,    1,    1,    0 ),
-          'FISHERINV'       => array( 284,    1,    1,    0 ),
-          'FLOOR'           => array( 285,    2,    1,    0 ),
-          'GAMMADIST'       => array( 286,    4,    1,    0 ),
-          'GAMMAINV'        => array( 287,    3,    1,    0 ),
-          'CEILING'         => array( 288,    2,    1,    0 ),
-          'HYPGEOMDIST'     => array( 289,    4,    1,    0 ),
-          'LOGNORMDIST'     => array( 290,    3,    1,    0 ),
-          'LOGINV'          => array( 291,    3,    1,    0 ),
-          'NEGBINOMDIST'    => array( 292,    3,    1,    0 ),
-          'NORMDIST'        => array( 293,    4,    1,    0 ),
-          'NORMSDIST'       => array( 294,    1,    1,    0 ),
-          'NORMINV'         => array( 295,    3,    1,    0 ),
-          'NORMSINV'        => array( 296,    1,    1,    0 ),
-          'STANDARDIZE'     => array( 297,    3,    1,    0 ),
-          'ODD'             => array( 298,    1,    1,    0 ),
-          'PERMUT'          => array( 299,    2,    1,    0 ),
-          'POISSON'         => array( 300,    3,    1,    0 ),
-          'TDIST'           => array( 301,    3,    1,    0 ),
-          'WEIBULL'         => array( 302,    4,    1,    0 ),
-          'SUMXMY2'         => array( 303,    2,    2,    0 ),
-          'SUMX2MY2'        => array( 304,    2,    2,    0 ),
-          'SUMX2PY2'        => array( 305,    2,    2,    0 ),
-          'CHITEST'         => array( 306,    2,    2,    0 ),
-          'CORREL'          => array( 307,    2,    2,    0 ),
-          'COVAR'           => array( 308,    2,    2,    0 ),
-          'FORECAST'        => array( 309,    3,    2,    0 ),
-          'FTEST'           => array( 310,    2,    2,    0 ),
-          'INTERCEPT'       => array( 311,    2,    2,    0 ),
-          'PEARSON'         => array( 312,    2,    2,    0 ),
-          'RSQ'             => array( 313,    2,    2,    0 ),
-          'STEYX'           => array( 314,    2,    2,    0 ),
-          'SLOPE'           => array( 315,    2,    2,    0 ),
-          'TTEST'           => array( 316,    4,    2,    0 ),
-          'PROB'            => array( 317,   -1,    2,    0 ),
-          'DEVSQ'           => array( 318,   -1,    0,    0 ),
-          'GEOMEAN'         => array( 319,   -1,    0,    0 ),
-          'HARMEAN'         => array( 320,   -1,    0,    0 ),
-          'SUMSQ'           => array( 321,   -1,    0,    0 ),
-          'KURT'            => array( 322,   -1,    0,    0 ),
-          'SKEW'            => array( 323,   -1,    0,    0 ),
-          'ZTEST'           => array( 324,   -1,    0,    0 ),
-          'LARGE'           => array( 325,    2,    0,    0 ),
-          'SMALL'           => array( 326,    2,    0,    0 ),
-          'QUARTILE'        => array( 327,    2,    0,    0 ),
-          'PERCENTILE'      => array( 328,    2,    0,    0 ),
-          'PERCENTRANK'     => array( 329,   -1,    0,    0 ),
-          'MODE'            => array( 330,   -1,    2,    0 ),
-          'TRIMMEAN'        => array( 331,    2,    0,    0 ),
-          'TINV'            => array( 332,    2,    1,    0 ),
-          'CONCATENATE'     => array( 336,   -1,    1,    0 ),
-          'POWER'           => array( 337,    2,    1,    0 ),
-          'RADIANS'         => array( 342,    1,    1,    0 ),
-          'DEGREES'         => array( 343,    1,    1,    0 ),
-          'SUBTOTAL'        => array( 344,   -1,    0,    0 ),
-          'SUMIF'           => array( 345,   -1,    0,    0 ),
-          'COUNTIF'         => array( 346,    2,    0,    0 ),
-          'COUNTBLANK'      => array( 347,    1,    0,    0 ),
-          'ROMAN'           => array( 354,   -1,    1,    0 )
-          );
-    }
-
-/**
-* Convert a token to the proper ptg value.
-*
-* @param mixed $token The token to convert.
-*/
-  function _convert($token)
-    {
-    if(is_numeric($token))
-        {
-        return($this->_convert_number($token));
-        }
-    // match references like A1
-    elseif(preg_match("/^([A-I]?[A-Z])(\d+)$/",$token))
-        {
-        return($this->_convert_ref2d($token));
-        }
-    // match ranges like A1:B2
-    elseif(preg_match("/^([A-I]?[A-Z])(\d+)\:([A-I]?[A-Z])(\d+)$/",$token))
-        {
-        return($this->_convert_range2d($token));
-        }
-    // match ranges like A1..B2
-    elseif(preg_match("/^([A-I]?[A-Z])(\d+)\.\.([A-I]?[A-Z])(\d+)$/",$token))
-        {
-        return($this->_convert_range2d($token));
-        }
-    elseif(isset($this->ptg[$token])) // operators (including parentheses)
-        {
-        return(pack("C", $this->ptg[$token]));
-        }
-    elseif(preg_match("/[A-Z0-9�-�\.]+/",$token))
-        {
-        return($this->_convert_function($token,$this->_func_args));
-        }
-    // if it's an argument, ignore the token (the argument remains)
-    elseif($token == 'arg')
-        {
-        $this->_func_args++;
-        return('');
-        }
-    die("Unknown token $token");
-    }
-
-/**
-* Convert a number token to ptgInt or ptgNum
-*
-* @param mixed $num an integer or double for conersion to its ptg value
-*/
-  function _convert_number($num)
-    {
-    // Integer in the range 0..2**16-1
-    if ((preg_match("/^\d+$/",$num)) and ($num <= 65535)) {
-        return pack("Cv", $this->ptg['ptgInt'], $num);
-        }
-    else // A float
-        {
-        if($this->_byte_order) // if it's Big Endian
-            {
-            $num = strrev($num);
-            }
-        return pack("Cd", $this->ptg['ptgNum'], $num);
-        }
-    }
-
-/**
-* Convert a function to a ptgFunc or ptgFuncVarV depending on the number of
-* args that it takes.
-*
-* @param string  $token    The name of the function for convertion to ptg value.
-* @param integer $num_args The number of arguments the function recieves.
-*/
-  function _convert_function($token, $num_args)
-    {
-    $this->_func_args = 0; // re initialize the number of arguments
-    $args     = $this->_functions[$token][1];
-    $volatile = $this->_functions[$token][3];
-
-    if($volatile) {
-        $this->_volatile = 1;
-        }
-    // Fixed number of args eg. TIME($i,$j,$k).
-    if ($args >= 0)
-        {
-        return(pack("Cv", $this->ptg['ptgFuncV'], $this->_functions[$token][0]));
-        }
-    // Variable number of args eg. SUM($i,$j,$k, ..).
-    if ($args == -1) {
-        return(pack("CCv", $this->ptg['ptgFuncVarV'], $num_args, $this->_functions[$token][0]));
-        }
-    }
-
-/**
-* Convert an Excel range such as A1:D4 to a ptgRefV.
-*
-* @param string $range An Excel range in the A1:A2 or A1..A2 format.
-*/
-  function _convert_range2d($range)
-    {
-    $class = 2; // as far as I know, this is magick.
-
-    // Split the range into 2 cell refs
-    if(preg_match("/^([A-I]?[A-Z])(\d+)\:([A-I]?[A-Z])(\d+)$/",$range)) {
-        list($cell1, $cell2) = explode(':', $range);
-        }
-    elseif(preg_match("/^([A-I]?[A-Z])(\d+)\.\.([A-I]?[A-Z])(\d+)$/",$range)) {
-        list($cell1, $cell2) = explode('\.\.', $range);
-        }
-    else {
-        die("Unknown range separator");
-        }
-
-    // Convert the cell references
-    list($row1, $col1) = $this->_cell_to_packed_rowcol($cell1);
-    list($row2, $col2) = $this->_cell_to_packed_rowcol($cell2);
-
-    // The ptg value depends on the class of the ptg.
-    if ($class == 0) {
-        $ptgArea = pack("C", $this->ptg['ptgArea']);
-        }
-    elseif ($class == 1) {
-        $ptgArea = pack("C", $this->ptg['ptgAreaV']);
-        }
-    elseif ($class == 2) {
-        $ptgArea = pack("C", $this->ptg['ptgAreaA']);
-        }
-    else{
-        die("Unknown class ");
-        }
-
-    return($ptgArea . $row1 . $row2 . $col1. $col2);
-    }
-
-/**
-* Convert an Excel reference such as A1, $B2, C$3 or $D$4 to a ptgRefV.
-*
-* @param string $cell An Excel cell reference
-*/
-  function _convert_ref2d($cell)
-    {
-    $class = 2; // as far as I know, this is magick.
-
-    // Convert the cell reference
-    list($row, $col) = $this->_cell_to_packed_rowcol($cell);
-
-    // The ptg value depends on the class of the ptg.
-    if ($class == 0) {
-        $ptgRef = pack("C", $this->ptg['ptgRef']);
-        }
-    elseif ($class == 1) {
-        $ptgRef = pack("C", $this->ptg['ptgRefV']);
-        }
-    elseif ($class == 2) {
-        $ptgRef = pack("C", $this->ptg['ptgRefA']);
-        }
-    else{
-        die("Unknown class ");
-        }
-    return $ptgRef.$row.$col;
-    }
-
-/**
-* pack() row and column into the required 3 byte format.
-*
-* @param string $cell The Excel cell reference to be packed
-*/
-  function _cell_to_packed_rowcol($cell)
-    {
-    list($row, $col, $row_rel, $col_rel) = $this->_cell_to_rowcol($cell);
-    if ($col >= 256) {
-        die("Column in: $cell greater than 255 ");
-        }
-    if ($row >= 16384) {
-        die("Row in: $cell greater than 16384 ");
-        }
-
-    // Set the high bits to indicate if row or col are relative.
-    $row    |= $col_rel << 14;
-    $row    |= $row_rel << 15;
-
-    $row     = pack('v', $row);
-    $col     = pack('C', $col);
-
-    return (array($row, $col));
-    }
-
-/**
-* Convert an Excel cell reference such as A1 or $B2 or C$3 or $D$4 to a zero
-* indexed row and column number. Also returns two boolean values to indicate
-* whether the row or column are relative references.
-*
-* @param string $cell The Excel cell reference in A1 format.
-*/
-  function _cell_to_rowcol($cell)
-    {
-    preg_match('/(\$)?([A-I]?[A-Z])(\$)?(\d+)/',$cell,$match);
-    // return absolute column if there is a $ in the ref
-    $col_rel = empty($match[1]) ? 1 : 0;
-    $col_ref = $match[2];
-    $row_rel = empty($match[3]) ? 1 : 0;
-    $row     = $match[4];
-
-    // Convert base26 column string to a number.
-    $expn   = strlen($col_ref) - 1;
-    $col    = 0;
-    for($i=0; $i < strlen($col_ref); $i++)
-    {
-        $col += (ord($col_ref[$i]) - ord('A') + 1) * pow(26, $expn);
-        $expn--;
-    }
-
-    // Convert 1-index to zero-index
-    $row--;
-    $col--;
-
-    return(array($row, $col, $row_rel, $col_rel));
-    }
-
-/**
-* Advance to the next valid token.
-*/
-  function _advance()
-    {
-    $i = $this->_current_char;
-    // eat up white spaces
-    if($i < strlen($this->_formula))
-        {
-        while($this->_formula[$i] == " ")
-            {
-            $i++;
-            }
-        if($i < strlen($this->_formula) - 1)
-            {
-            $this->_lookahead = $this->_formula[$i+1];
-            }
-        $token = "";
-        }
-    while($i < strlen($this->_formula))
-        {
-        $token .= $this->_formula[$i];
-        if($this->_match($token) != '')
-            {
-            if($i < strlen($this->_formula) - 1)
-                {
-                $this->_lookahead = $this->_formula[$i+1];
-                }
-            $this->_current_char = $i + 1;
-            $this->_current_token = $token;
-            return(1);
-            }
-        $this->_lookahead = $this->_formula[$i+2];
-        $i++;
-        }
-    //die("Lexical error ".$this->_current_char);
-    }
-
-/**
-* Checks if it's a valid token.
-*
-* @param mixed $token The token to check.
-*/
-  function _match($token)
-    {
-    switch($token)
-        {
-        case ADD:
-            return($token);
-            break;
-        case SUB:
-            return($token);
-            break;
-        case MUL:
-            return($token);
-            break;
-        case DIV:
-            return($token);
-            break;
-        case OPEN:
-            return($token);
-            break;
-        case CLOSE:
-            return($token);
-            break;
-        case COMA:
-            return($token);
-            break;
-        default:
-	    // if it's a reference
-            if(preg_match("/^[A-I]?[A-Z][0-9]+$/i", $token) and
-	        !preg_match("/[0-9]/",$this->_lookahead) and
-               ($this->_lookahead != ':') and ($this->_lookahead != '.'))
-                {
-                return($token);
-                }
-            // if it's a range (A1:A2)
-            elseif(preg_match("/^[A-I]?[A-Z][0-9]+:[A-I]?[A-Z][0-9]+$/i", $token) and
-	         !preg_match("/[0-9]/",$this->_lookahead))
-	        {
-		return($token);
-		}
-            // if it's a range (A1..A2)
-            elseif(preg_match("/^[A-I]?[A-Z][0-9]+\.\.[A-I]?[A-Z][0-9]+$/i", $token) and
-	           !preg_match("/[0-9]/",$this->_lookahead))
-	        {
-		return($token);
-		}
-            elseif(is_numeric($token) and !is_numeric($token.$this->_lookahead))
-                {
-                return($token);
-                }
-            // if it's a function call
-            elseif(preg_match("/^[A-Z0-9�-�\.]+$/i", $token) and ($this->_lookahead == "("))
-
-	        {
-		return($token);
-		}
-            return '';
-        }
-    }
-
-/**
-* The parsing method. It parses a formula.
-*
-* @access public
-* @param string $formula The formula to parse, without the initial equal sign (=).
-*/
-  function parse($formula)
-    {
-    $this->_current_char = 0;
-    $this->_formula      = $formula;
-    $this->_lookahead    = $formula[1];
-    $this->_advance();
-    $this->_parse_tree   = $this->_expression();
-    }
-
-/**
-* It parses a expression. It assumes the following rule:
-* Expr -> Term [("+" | "-") Term]
-*
-* @return mixed The parsed ptg'd tree
-*/
-  function _expression()
-    {
-    $result = $this->_term();
-    while ($this->_current_token == ADD or $this->_current_token == SUB)
-        {
-        if ($this->_current_token == ADD)
-            {
-            $this->_advance();
-            $result = $this->_create_tree('ptgAdd', $result, $this->_term());
-            }
-        else
-            {
-            $this->_advance();
-            $result = $this->_create_tree('ptgSub', $result, $this->_term());
-            }
-        }
-    return $result;
-    }
-
-/**
-* This function just introduces a ptgParen element in the tree, so that Excel
-* doesn't get confused when working with a parenthesized formula afterwards.
-*
-* @see _fact
-* @return mixed The parsed ptg'd tree
-*/
-  function _parenthesized_expression()
-    {
-    $result = $this->_create_tree('ptgParen', $this->_expression(), '');
-    return($result);
-    }
-
-/**
-* It parses a term. It assumes the following rule:
-* Term -> Fact [("*" | "/") Fact]
-*
-* @return mixed The parsed ptg'd tree
-*/
-  function _term()
-    {
-    $result = $this->_fact();
-    while ($this->_current_token == MUL || $this->_current_token == DIV)
-        {
-        if ($this->_current_token == MUL)
-            {
-            $this->_advance();
-            $result = $this->_create_tree('ptgMul', $result, $this->_fact());
-            }
-        else
-            {
-            $this->_advance();
-            $result = $this->_create_tree('ptgDiv', $result, $this->_fact());
-            }
-        }
-    return($result);
-    }
-
-/**
-* It parses a factor. It assumes the following rule:
-* Fact -> ( Expr )
-*       | CellRef
-*       | CellRange
-*       | Number
-*       | Function
-*
-* @return mixed The parsed ptg'd tree
-*/
-  function _fact()
-    {
-    if ($this->_current_token == OPEN)
-        {
-        $this->_advance();         // eat the "("
-        $result = $this->_parenthesized_expression();//$this->_expression();
-
-        if ($this->_current_token != CLOSE) {
-            die("')' token expected.");
-            }
-        $this->_advance();         // eat the ")"
-        return($result);
-        }
-    // if it's a reference
-    if (preg_match("/^[A-I]?[A-Z][0-9]+$/i", $this->_current_token))
-        {
-        $result = $this->_create_tree($this->_current_token, '', '');
-        $this->_advance();
-        return($result);
-        }
-    // if it's a range
-    elseif (preg_match("/^[A-I]?[A-Z][0-9]+:[A-I]?[A-Z][0-9]+$/i", $this->_current_token) or
-            preg_match("/^[A-I]?[A-Z][0-9]+\.\.[A-I]?[A-Z][0-9]+$/i", $this->_current_token))
-        {
-        $result = $this->_current_token;
-        $this->_advance();
-        return($result);
-        }
-    elseif (is_numeric($this->_current_token))
-        {
-        $result = $this->_create_tree($this->_current_token, '', '');
-        $this->_advance();
-        return($result);
-        }
-    // if it's a function call
-    elseif (preg_match("/^[A-Z0-9�-�\.]+$/i", $this->_current_token))
-        {
-        $result = $this->_func();
-        return($result);
-        }
-    die("Sintactic error: ".$this->_current_token.", lookahead: ".
-        $this->_lookahead.", current char: ".$this->_current_char);
-    }
-
-/**
-* It parses a function call. It assumes the following rule:
-* Func -> ( Expr [,Expr]* )
-*
-*/
-  function _func()
-    {
-    $num_args = 0; // number of arguments received
-    $function = $this->_current_token;
-    $this->_advance();
-    $this->_advance();         // eat the "("
-    while($this->_current_token != ')')
-        {
-        if($num_args > 0)
-            {
-            if($this->_current_token == COMA) {
-                $this->_advance();  // eat the ","
-                }
-            else {
-                die("Sintactic error: coma expected $num_args");
-                }
-            $result = $this->_create_tree('arg', $result, $this->_expression());
-            }
-        else {
-            $result = $this->_create_tree('arg', '', $this->_expression());
-            }
-        $num_args++;
-        }
-    $args = $this->_functions[$function][1];
-    // If fixed number of args eg. TIME($i,$j,$k). Check that the number of args is valid.
-    if (($args >= 0) and ($args != $num_args))
-        {
-        die("Incorrect number of arguments in function $function() ");
-        }
-
-    $result = $this->_create_tree($function, $result, '');
-    $this->_advance();         // eat the ")"
-    return($result);
-    }
-
-/**
-* Creates a tree. In fact an array which may have one or two arrays (sub-trees)
-* as elements.
-*
-* @param mixed $value The value of this node.
-* @param mixed $left  The left array (sub-tree) or a final node.
-* @param mixed $right The right array (sub-tree) or a final node.
-*/
-  function _create_tree($value, $left, $right)
-    {
-    return array('value' => $value, 'left' => $left, 'right' => $right);
-    }
-
-/**
-* Builds a string containing the tree in reverse polish notation (What you
-* would use in a HP calculator stack).
-* The following tree:
-*
-*    +
-*   / \
-*  2   3
-*
-* produces: "23+"
-*
-* The following tree:
-*
-*    +
-*   / \
-*  3   *
-*     / \
-*    6   A1
-*
-* produces: "36A1*+"
-*
-* In fact all operands, functions, references, etc... are written as ptg's
-*
-* @access public
-* @param array $tree The optional tree to convert.
-*/
-  function to_reverse_polish($tree = array())
-    {
-    $polish = ""; // the string we are going to return
-    if (empty($tree)) // If it's the first call use _parse_tree
-        {
-        $tree = $this->_parse_tree;
-        }
-    if (is_array($tree['left']))
-        {
-        $polish .= $this->to_reverse_polish($tree['left']);
-        }
-    elseif($tree['left'] != '') // It's a final node
-        {
-        $polish .= $this->_convert($tree['left']); //$tree['left'];
-        }
-    if (is_array($tree['right']))
-        {
-        $polish .= $this->to_reverse_polish($tree['right']);
-        }
-    elseif($tree['right'] != '') // It's a final node
-        {
-        $polish .= $this->_convert($tree['right']);
-        }
-    $polish .= $this->_convert($tree['value']);
-    return $polish;
-    }
-  }
-?>