1583 lines
55 KiB
PHP
1583 lines
55 KiB
PHP
<?php
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/**
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* PHPExcel
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*
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* Copyright (c) 2006 - 2012 PHPExcel
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* @category PHPExcel
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* @package PHPExcel_Writer_Excel5
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* @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
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* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
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* @version ##VERSION##, ##DATE##
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*/
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// Original file header of PEAR::Spreadsheet_Excel_Writer_Parser (used as the base for this class):
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// -----------------------------------------------------------------------------------------
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// * Class for parsing Excel formulas
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// *
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// * License Information:
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// *
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// * Spreadsheet_Excel_Writer: A library for generating Excel Spreadsheets
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// * Copyright (c) 2002-2003 Xavier Noguer xnoguer@rezebra.com
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// *
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// * This library is free software; you can redistribute it and/or
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// * modify it under the terms of the GNU Lesser General Public
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// * License as published by the Free Software Foundation; either
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// * version 2.1 of the License, or (at your option) any later version.
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// *
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// * This library is distributed in the hope that it will be useful,
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// * but WITHOUT ANY WARRANTY; without even the implied warranty of
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// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// * Lesser General Public License for more details.
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// *
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// * You should have received a copy of the GNU Lesser General Public
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// * License along with this library; if not, write to the Free Software
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// * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// */
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/**
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* PHPExcel_Writer_Excel5_Parser
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*
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* @category PHPExcel
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* @package PHPExcel_Writer_Excel5
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* @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
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*/
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class PHPExcel_Writer_Excel5_Parser
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{
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/** Constants */
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// Sheet title in unquoted form
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// Invalid sheet title characters cannot occur in the sheet title:
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// *:/\?[]
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// Moreover, there are valid sheet title characters that cannot occur in unquoted form (there may be more?)
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// +-% '^&<>=,;#()"{}
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const REGEX_SHEET_TITLE_UNQUOTED = '[^\*\:\/\\\\\?\[\]\+\-\% \\\'\^\&\<\>\=\,\;\#\(\)\"\{\}]+';
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// Sheet title in quoted form (without surrounding quotes)
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// Invalid sheet title characters cannot occur in the sheet title:
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// *:/\?[] (usual invalid sheet title characters)
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// Single quote is represented as a pair ''
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const REGEX_SHEET_TITLE_QUOTED = '(([^\*\:\/\\\\\?\[\]\\\'])+|(\\\'\\\')+)+';
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/**
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* The index of the character we are currently looking at
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* @var integer
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*/
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public $_current_char;
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/**
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* The token we are working on.
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* @var string
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*/
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public $_current_token;
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/**
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* The formula to parse
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* @var string
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*/
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public $_formula;
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/**
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* The character ahead of the current char
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* @var string
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*/
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public $_lookahead;
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/**
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* The parse tree to be generated
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* @var string
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*/
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public $_parse_tree;
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/**
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* Array of external sheets
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* @var array
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*/
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public $_ext_sheets;
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/**
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* Array of sheet references in the form of REF structures
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* @var array
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*/
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public $_references;
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/**
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* The class constructor
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*
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*/
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public function __construct()
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{
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$this->_current_char = 0;
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$this->_current_token = ''; // The token we are working on.
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$this->_formula = ''; // The formula to parse.
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$this->_lookahead = ''; // The character ahead of the current char.
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$this->_parse_tree = ''; // The parse tree to be generated.
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$this->_initializeHashes(); // Initialize the hashes: ptg's and function's ptg's
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$this->_ext_sheets = array();
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$this->_references = array();
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}
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/**
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* Initialize the ptg and function hashes.
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*
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* @access private
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*/
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function _initializeHashes()
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{
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// The Excel ptg indices
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$this->ptg = array(
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'ptgExp' => 0x01,
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'ptgTbl' => 0x02,
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'ptgAdd' => 0x03,
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'ptgSub' => 0x04,
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'ptgMul' => 0x05,
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'ptgDiv' => 0x06,
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'ptgPower' => 0x07,
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'ptgConcat' => 0x08,
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'ptgLT' => 0x09,
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'ptgLE' => 0x0A,
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'ptgEQ' => 0x0B,
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'ptgGE' => 0x0C,
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'ptgGT' => 0x0D,
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'ptgNE' => 0x0E,
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'ptgIsect' => 0x0F,
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'ptgUnion' => 0x10,
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'ptgRange' => 0x11,
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'ptgUplus' => 0x12,
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'ptgUminus' => 0x13,
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'ptgPercent' => 0x14,
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'ptgParen' => 0x15,
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'ptgMissArg' => 0x16,
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'ptgStr' => 0x17,
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'ptgAttr' => 0x19,
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'ptgSheet' => 0x1A,
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'ptgEndSheet' => 0x1B,
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'ptgErr' => 0x1C,
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'ptgBool' => 0x1D,
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'ptgInt' => 0x1E,
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'ptgNum' => 0x1F,
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'ptgArray' => 0x20,
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'ptgFunc' => 0x21,
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'ptgFuncVar' => 0x22,
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'ptgName' => 0x23,
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'ptgRef' => 0x24,
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'ptgArea' => 0x25,
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'ptgMemArea' => 0x26,
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'ptgMemErr' => 0x27,
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'ptgMemNoMem' => 0x28,
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'ptgMemFunc' => 0x29,
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'ptgRefErr' => 0x2A,
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'ptgAreaErr' => 0x2B,
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'ptgRefN' => 0x2C,
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'ptgAreaN' => 0x2D,
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'ptgMemAreaN' => 0x2E,
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'ptgMemNoMemN' => 0x2F,
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'ptgNameX' => 0x39,
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'ptgRef3d' => 0x3A,
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'ptgArea3d' => 0x3B,
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'ptgRefErr3d' => 0x3C,
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'ptgAreaErr3d' => 0x3D,
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'ptgArrayV' => 0x40,
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'ptgFuncV' => 0x41,
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'ptgFuncVarV' => 0x42,
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'ptgNameV' => 0x43,
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'ptgRefV' => 0x44,
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'ptgAreaV' => 0x45,
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'ptgMemAreaV' => 0x46,
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'ptgMemErrV' => 0x47,
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'ptgMemNoMemV' => 0x48,
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'ptgMemFuncV' => 0x49,
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'ptgRefErrV' => 0x4A,
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'ptgAreaErrV' => 0x4B,
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'ptgRefNV' => 0x4C,
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'ptgAreaNV' => 0x4D,
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'ptgMemAreaNV' => 0x4E,
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'ptgMemNoMemN' => 0x4F,
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'ptgFuncCEV' => 0x58,
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'ptgNameXV' => 0x59,
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'ptgRef3dV' => 0x5A,
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'ptgArea3dV' => 0x5B,
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'ptgRefErr3dV' => 0x5C,
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'ptgAreaErr3d' => 0x5D,
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'ptgArrayA' => 0x60,
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'ptgFuncA' => 0x61,
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'ptgFuncVarA' => 0x62,
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'ptgNameA' => 0x63,
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'ptgRefA' => 0x64,
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'ptgAreaA' => 0x65,
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'ptgMemAreaA' => 0x66,
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'ptgMemErrA' => 0x67,
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'ptgMemNoMemA' => 0x68,
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'ptgMemFuncA' => 0x69,
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'ptgRefErrA' => 0x6A,
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'ptgAreaErrA' => 0x6B,
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'ptgRefNA' => 0x6C,
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'ptgAreaNA' => 0x6D,
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'ptgMemAreaNA' => 0x6E,
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'ptgMemNoMemN' => 0x6F,
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'ptgFuncCEA' => 0x78,
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'ptgNameXA' => 0x79,
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'ptgRef3dA' => 0x7A,
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'ptgArea3dA' => 0x7B,
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'ptgRefErr3dA' => 0x7C,
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'ptgAreaErr3d' => 0x7D
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);
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// Thanks to Michael Meeks and Gnumeric for the initial arg values.
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//
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// The following hash was generated by "function_locale.pl" in the distro.
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// Refer to function_locale.pl for non-English function names.
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//
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// The array elements are as follow:
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// ptg: The Excel function ptg code.
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// args: The number of arguments that the function takes:
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// >=0 is a fixed number of arguments.
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// -1 is a variable number of arguments.
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// class: The reference, value or array class of the function args.
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// vol: The function is volatile.
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//
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$this->_functions = array(
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// function ptg args class vol
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'COUNT' => array( 0, -1, 0, 0 ),
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'IF' => array( 1, -1, 1, 0 ),
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'ISNA' => array( 2, 1, 1, 0 ),
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'ISERROR' => array( 3, 1, 1, 0 ),
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'SUM' => array( 4, -1, 0, 0 ),
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'AVERAGE' => array( 5, -1, 0, 0 ),
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'MIN' => array( 6, -1, 0, 0 ),
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'MAX' => array( 7, -1, 0, 0 ),
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'ROW' => array( 8, -1, 0, 0 ),
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'COLUMN' => array( 9, -1, 0, 0 ),
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'NA' => array( 10, 0, 0, 0 ),
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'NPV' => array( 11, -1, 1, 0 ),
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'STDEV' => array( 12, -1, 0, 0 ),
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'DOLLAR' => array( 13, -1, 1, 0 ),
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'FIXED' => array( 14, -1, 1, 0 ),
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'SIN' => array( 15, 1, 1, 0 ),
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'COS' => array( 16, 1, 1, 0 ),
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'TAN' => array( 17, 1, 1, 0 ),
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'ATAN' => array( 18, 1, 1, 0 ),
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'PI' => array( 19, 0, 1, 0 ),
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'SQRT' => array( 20, 1, 1, 0 ),
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'EXP' => array( 21, 1, 1, 0 ),
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'LN' => array( 22, 1, 1, 0 ),
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'LOG10' => array( 23, 1, 1, 0 ),
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'ABS' => array( 24, 1, 1, 0 ),
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'INT' => array( 25, 1, 1, 0 ),
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'SIGN' => array( 26, 1, 1, 0 ),
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'ROUND' => array( 27, 2, 1, 0 ),
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'LOOKUP' => array( 28, -1, 0, 0 ),
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'INDEX' => array( 29, -1, 0, 1 ),
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'REPT' => array( 30, 2, 1, 0 ),
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'MID' => array( 31, 3, 1, 0 ),
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'LEN' => array( 32, 1, 1, 0 ),
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'VALUE' => array( 33, 1, 1, 0 ),
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'TRUE' => array( 34, 0, 1, 0 ),
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'FALSE' => array( 35, 0, 1, 0 ),
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'AND' => array( 36, -1, 0, 0 ),
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'OR' => array( 37, -1, 0, 0 ),
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'NOT' => array( 38, 1, 1, 0 ),
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'MOD' => array( 39, 2, 1, 0 ),
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'DCOUNT' => array( 40, 3, 0, 0 ),
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'DSUM' => array( 41, 3, 0, 0 ),
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'DAVERAGE' => array( 42, 3, 0, 0 ),
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'DMIN' => array( 43, 3, 0, 0 ),
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'DMAX' => array( 44, 3, 0, 0 ),
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'DSTDEV' => array( 45, 3, 0, 0 ),
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'VAR' => array( 46, -1, 0, 0 ),
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'DVAR' => array( 47, 3, 0, 0 ),
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'TEXT' => array( 48, 2, 1, 0 ),
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'LINEST' => array( 49, -1, 0, 0 ),
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'TREND' => array( 50, -1, 0, 0 ),
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'LOGEST' => array( 51, -1, 0, 0 ),
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'GROWTH' => array( 52, -1, 0, 0 ),
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'PV' => array( 56, -1, 1, 0 ),
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'FV' => array( 57, -1, 1, 0 ),
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'NPER' => array( 58, -1, 1, 0 ),
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'PMT' => array( 59, -1, 1, 0 ),
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'RATE' => array( 60, -1, 1, 0 ),
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'MIRR' => array( 61, 3, 0, 0 ),
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'IRR' => array( 62, -1, 0, 0 ),
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'RAND' => array( 63, 0, 1, 1 ),
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'MATCH' => array( 64, -1, 0, 0 ),
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'DATE' => array( 65, 3, 1, 0 ),
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'TIME' => array( 66, 3, 1, 0 ),
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'DAY' => array( 67, 1, 1, 0 ),
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'MONTH' => array( 68, 1, 1, 0 ),
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'YEAR' => array( 69, 1, 1, 0 ),
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'WEEKDAY' => array( 70, -1, 1, 0 ),
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'HOUR' => array( 71, 1, 1, 0 ),
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'MINUTE' => array( 72, 1, 1, 0 ),
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'SECOND' => array( 73, 1, 1, 0 ),
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'NOW' => array( 74, 0, 1, 1 ),
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'AREAS' => array( 75, 1, 0, 1 ),
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'ROWS' => array( 76, 1, 0, 1 ),
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'COLUMNS' => array( 77, 1, 0, 1 ),
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'OFFSET' => array( 78, -1, 0, 1 ),
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'SEARCH' => array( 82, -1, 1, 0 ),
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'TRANSPOSE' => array( 83, 1, 1, 0 ),
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'TYPE' => array( 86, 1, 1, 0 ),
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'ATAN2' => array( 97, 2, 1, 0 ),
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'ASIN' => array( 98, 1, 1, 0 ),
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'ACOS' => array( 99, 1, 1, 0 ),
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'CHOOSE' => array( 100, -1, 1, 0 ),
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'HLOOKUP' => array( 101, -1, 0, 0 ),
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'VLOOKUP' => array( 102, -1, 0, 0 ),
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'ISREF' => array( 105, 1, 0, 0 ),
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'LOG' => array( 109, -1, 1, 0 ),
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'CHAR' => array( 111, 1, 1, 0 ),
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'LOWER' => array( 112, 1, 1, 0 ),
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'UPPER' => array( 113, 1, 1, 0 ),
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'PROPER' => array( 114, 1, 1, 0 ),
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'LEFT' => array( 115, -1, 1, 0 ),
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'RIGHT' => array( 116, -1, 1, 0 ),
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'EXACT' => array( 117, 2, 1, 0 ),
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'TRIM' => array( 118, 1, 1, 0 ),
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'REPLACE' => array( 119, 4, 1, 0 ),
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'SUBSTITUTE' => array( 120, -1, 1, 0 ),
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'CODE' => array( 121, 1, 1, 0 ),
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'FIND' => array( 124, -1, 1, 0 ),
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'CELL' => array( 125, -1, 0, 1 ),
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'ISERR' => array( 126, 1, 1, 0 ),
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|
'ISTEXT' => array( 127, 1, 1, 0 ),
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|
'ISNUMBER' => array( 128, 1, 1, 0 ),
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|
'ISBLANK' => array( 129, 1, 1, 0 ),
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'T' => array( 130, 1, 0, 0 ),
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'N' => array( 131, 1, 0, 0 ),
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'DATEVALUE' => array( 140, 1, 1, 0 ),
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'TIMEVALUE' => array( 141, 1, 1, 0 ),
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'SLN' => array( 142, 3, 1, 0 ),
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'SYD' => array( 143, 4, 1, 0 ),
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'DDB' => array( 144, -1, 1, 0 ),
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'INDIRECT' => array( 148, -1, 1, 1 ),
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'CALL' => array( 150, -1, 1, 0 ),
|
|
'CLEAN' => array( 162, 1, 1, 0 ),
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|
'MDETERM' => array( 163, 1, 2, 0 ),
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'MINVERSE' => array( 164, 1, 2, 0 ),
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|
'MMULT' => array( 165, 2, 2, 0 ),
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|
'IPMT' => array( 167, -1, 1, 0 ),
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|
'PPMT' => array( 168, -1, 1, 0 ),
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|
'COUNTA' => array( 169, -1, 0, 0 ),
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|
'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 ),
|
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'DSTDEVP' => array( 195, 3, 0, 0 ),
|
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'DVARP' => array( 196, 3, 0, 0 ),
|
|
'TRUNC' => array( 197, -1, 1, 0 ),
|
|
'ISLOGICAL' => array( 198, 1, 1, 0 ),
|
|
'DCOUNTA' => array( 199, 3, 0, 0 ),
|
|
'USDOLLAR' => array( 204, -1, 1, 0 ),
|
|
'FINDB' => array( 205, -1, 1, 0 ),
|
|
'SEARCHB' => array( 206, -1, 1, 0 ),
|
|
'REPLACEB' => array( 207, 4, 1, 0 ),
|
|
'LEFTB' => array( 208, -1, 1, 0 ),
|
|
'RIGHTB' => array( 209, -1, 1, 0 ),
|
|
'MIDB' => array( 210, 3, 1, 0 ),
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|
'LENB' => array( 211, 1, 1, 0 ),
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'ROUNDUP' => array( 212, 2, 1, 0 ),
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|
'ROUNDDOWN' => array( 213, 2, 1, 0 ),
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'ASC' => array( 214, 1, 1, 0 ),
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|
'DBCS' => array( 215, 1, 1, 0 ),
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'RANK' => array( 216, -1, 0, 0 ),
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|
'ADDRESS' => array( 219, -1, 1, 0 ),
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|
'DAYS360' => array( 220, -1, 1, 0 ),
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|
'TODAY' => array( 221, 0, 1, 1 ),
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|
'VDB' => array( 222, -1, 1, 0 ),
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'MEDIAN' => array( 227, -1, 0, 0 ),
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|
'SUMPRODUCT' => array( 228, -1, 2, 0 ),
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|
'SINH' => array( 229, 1, 1, 0 ),
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|
'COSH' => array( 230, 1, 1, 0 ),
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|
'TANH' => array( 231, 1, 1, 0 ),
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|
'ASINH' => array( 232, 1, 1, 0 ),
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'ACOSH' => array( 233, 1, 1, 0 ),
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|
'ATANH' => array( 234, 1, 1, 0 ),
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|
'DGET' => array( 235, 3, 0, 0 ),
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|
'INFO' => array( 244, 1, 1, 1 ),
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'DB' => array( 247, -1, 1, 0 ),
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'FREQUENCY' => array( 252, 2, 0, 0 ),
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|
'ERROR.TYPE' => array( 261, 1, 1, 0 ),
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|
'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 ),
|
|
'ISPMT' => array( 350, 4, 1, 0 ),
|
|
'DATEDIF' => array( 351, 3, 1, 0 ),
|
|
'DATESTRING' => array( 352, 1, 1, 0 ),
|
|
'NUMBERSTRING' => array( 353, 2, 1, 0 ),
|
|
'ROMAN' => array( 354, -1, 1, 0 ),
|
|
'GETPIVOTDATA' => array( 358, -1, 0, 0 ),
|
|
'HYPERLINK' => array( 359, -1, 1, 0 ),
|
|
'PHONETIC' => array( 360, 1, 0, 0 ),
|
|
'AVERAGEA' => array( 361, -1, 0, 0 ),
|
|
'MAXA' => array( 362, -1, 0, 0 ),
|
|
'MINA' => array( 363, -1, 0, 0 ),
|
|
'STDEVPA' => array( 364, -1, 0, 0 ),
|
|
'VARPA' => array( 365, -1, 0, 0 ),
|
|
'STDEVA' => array( 366, -1, 0, 0 ),
|
|
'VARA' => array( 367, -1, 0, 0 ),
|
|
'BAHTTEXT' => array( 368, 1, 0, 0 ),
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Convert a token to the proper ptg value.
|
|
*
|
|
* @access private
|
|
* @param mixed $token The token to convert.
|
|
* @return mixed the converted token on success
|
|
*/
|
|
function _convert($token)
|
|
{
|
|
if (preg_match("/\"([^\"]|\"\"){0,255}\"/", $token)) {
|
|
return $this->_convertString($token);
|
|
|
|
} elseif (is_numeric($token)) {
|
|
return $this->_convertNumber($token);
|
|
|
|
// match references like A1 or $A$1
|
|
} elseif (preg_match('/^\$?([A-Ia-i]?[A-Za-z])\$?(\d+)$/',$token)) {
|
|
return $this->_convertRef2d($token);
|
|
|
|
// match external references like Sheet1!A1 or Sheet1:Sheet2!A1 or Sheet1!$A$1 or Sheet1:Sheet2!$A$1
|
|
} elseif (preg_match("/^" . self::REGEX_SHEET_TITLE_UNQUOTED . "(\:" . self::REGEX_SHEET_TITLE_UNQUOTED . ")?\!\\$?[A-Ia-i]?[A-Za-z]\\$?(\d+)$/u",$token)) {
|
|
return $this->_convertRef3d($token);
|
|
|
|
// match external references like 'Sheet1'!A1 or 'Sheet1:Sheet2'!A1 or 'Sheet1'!$A$1 or 'Sheet1:Sheet2'!$A$1
|
|
} elseif (preg_match("/^'" . self::REGEX_SHEET_TITLE_QUOTED . "(\:" . self::REGEX_SHEET_TITLE_QUOTED . ")?'\!\\$?[A-Ia-i]?[A-Za-z]\\$?(\d+)$/u",$token)) {
|
|
return $this->_convertRef3d($token);
|
|
|
|
// match ranges like A1:B2 or $A$1:$B$2
|
|
} elseif (preg_match('/^(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)\:(\$)?[A-Ia-i]?[A-Za-z](\$)?(\d+)$/', $token)) {
|
|
return $this->_convertRange2d($token);
|
|
|
|
// match external ranges like Sheet1!A1:B2 or Sheet1:Sheet2!A1:B2 or Sheet1!$A$1:$B$2 or Sheet1:Sheet2!$A$1:$B$2
|
|
} elseif (preg_match("/^" . self::REGEX_SHEET_TITLE_UNQUOTED . "(\:" . self::REGEX_SHEET_TITLE_UNQUOTED . ")?\!\\$?([A-Ia-i]?[A-Za-z])?\\$?(\d+)\:\\$?([A-Ia-i]?[A-Za-z])?\\$?(\d+)$/u",$token)) {
|
|
return $this->_convertRange3d($token);
|
|
|
|
// match external ranges like 'Sheet1'!A1:B2 or 'Sheet1:Sheet2'!A1:B2 or 'Sheet1'!$A$1:$B$2 or 'Sheet1:Sheet2'!$A$1:$B$2
|
|
} elseif (preg_match("/^'" . self::REGEX_SHEET_TITLE_QUOTED . "(\:" . self::REGEX_SHEET_TITLE_QUOTED . ")?'\!\\$?([A-Ia-i]?[A-Za-z])?\\$?(\d+)\:\\$?([A-Ia-i]?[A-Za-z])?\\$?(\d+)$/u",$token)) {
|
|
return $this->_convertRange3d($token);
|
|
|
|
// operators (including parentheses)
|
|
} elseif (isset($this->ptg[$token])) {
|
|
return pack("C", $this->ptg[$token]);
|
|
|
|
// match error codes
|
|
} elseif (preg_match("/^#[A-Z0\/]{3,5}[!?]{1}$/", $token) or $token == '#N/A') {
|
|
return $this->_convertError($token);
|
|
|
|
// commented so argument number can be processed correctly. See toReversePolish().
|
|
/*elseif (preg_match("/[A-Z0-9\xc0-\xdc\.]+/",$token))
|
|
{
|
|
return($this->_convertFunction($token,$this->_func_args));
|
|
}*/
|
|
|
|
// if it's an argument, ignore the token (the argument remains)
|
|
} elseif ($token == 'arg') {
|
|
return '';
|
|
}
|
|
|
|
// TODO: use real error codes
|
|
throw new Exception("Unknown token $token");
|
|
}
|
|
|
|
/**
|
|
* Convert a number token to ptgInt or ptgNum
|
|
*
|
|
* @access private
|
|
* @param mixed $num an integer or double for conversion to its ptg value
|
|
*/
|
|
function _convertNumber($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 (PHPExcel_Writer_Excel5_BIFFwriter::getByteOrder()) { // if it's Big Endian
|
|
$num = strrev($num);
|
|
}
|
|
return pack("Cd", $this->ptg['ptgNum'], $num);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Convert a string token to ptgStr
|
|
*
|
|
* @access private
|
|
* @param string $string A string for conversion to its ptg value.
|
|
* @return mixed the converted token on success
|
|
*/
|
|
function _convertString($string)
|
|
{
|
|
// chop away beggining and ending quotes
|
|
$string = substr($string, 1, strlen($string) - 2);
|
|
if (strlen($string) > 255) {
|
|
throw new Exception("String is too long");
|
|
}
|
|
|
|
return pack('C', $this->ptg['ptgStr']) . PHPExcel_Shared_String::UTF8toBIFF8UnicodeShort($string);
|
|
}
|
|
|
|
/**
|
|
* Convert a function to a ptgFunc or ptgFuncVarV depending on the number of
|
|
* args that it takes.
|
|
*
|
|
* @access private
|
|
* @param string $token The name of the function for convertion to ptg value.
|
|
* @param integer $num_args The number of arguments the function receives.
|
|
* @return string The packed ptg for the function
|
|
*/
|
|
function _convertFunction($token, $num_args)
|
|
{
|
|
$args = $this->_functions[$token][1];
|
|
// $volatile = $this->_functions[$token][3];
|
|
|
|
// 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.
|
|
*
|
|
* @access private
|
|
* @param string $range An Excel range in the A1:A2
|
|
* @param int $class
|
|
*/
|
|
function _convertRange2d($range, $class=0)
|
|
{
|
|
|
|
// TODO: possible class value 0,1,2 check Formula.pm
|
|
// Split the range into 2 cell refs
|
|
if (preg_match('/^(\$)?([A-Ia-i]?[A-Za-z])(\$)?(\d+)\:(\$)?([A-Ia-i]?[A-Za-z])(\$)?(\d+)$/', $range)) {
|
|
list($cell1, $cell2) = explode(':', $range);
|
|
} else {
|
|
// TODO: use real error codes
|
|
throw new Exception("Unknown range separator");
|
|
}
|
|
|
|
// Convert the cell references
|
|
list($row1, $col1) = $this->_cellToPackedRowcol($cell1);
|
|
list($row2, $col2) = $this->_cellToPackedRowcol($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 {
|
|
// TODO: use real error codes
|
|
throw new Exception("Unknown class $class");
|
|
}
|
|
return $ptgArea . $row1 . $row2 . $col1. $col2;
|
|
}
|
|
|
|
/**
|
|
* Convert an Excel 3d range such as "Sheet1!A1:D4" or "Sheet1:Sheet2!A1:D4" to
|
|
* a ptgArea3d.
|
|
*
|
|
* @access private
|
|
* @param string $token An Excel range in the Sheet1!A1:A2 format.
|
|
* @return mixed The packed ptgArea3d token on success.
|
|
*/
|
|
function _convertRange3d($token)
|
|
{
|
|
// $class = 0; // formulas like Sheet1!$A$1:$A$2 in list type data validation need this class (0x3B)
|
|
|
|
// Split the ref at the ! symbol
|
|
list($ext_ref, $range) = explode('!', $token);
|
|
|
|
// Convert the external reference part (different for BIFF8)
|
|
$ext_ref = $this->_getRefIndex($ext_ref);
|
|
|
|
// Split the range into 2 cell refs
|
|
list($cell1, $cell2) = explode(':', $range);
|
|
|
|
// Convert the cell references
|
|
if (preg_match("/^(\\$)?[A-Ia-i]?[A-Za-z](\\$)?(\d+)$/", $cell1)) {
|
|
list($row1, $col1) = $this->_cellToPackedRowcol($cell1);
|
|
list($row2, $col2) = $this->_cellToPackedRowcol($cell2);
|
|
} else { // It's a rows range (like 26:27)
|
|
list($row1, $col1, $row2, $col2) = $this->_rangeToPackedRange($cell1.':'.$cell2);
|
|
}
|
|
|
|
// The ptg value depends on the class of the ptg.
|
|
// if ($class == 0) {
|
|
$ptgArea = pack("C", $this->ptg['ptgArea3d']);
|
|
// } elseif ($class == 1) {
|
|
// $ptgArea = pack("C", $this->ptg['ptgArea3dV']);
|
|
// } elseif ($class == 2) {
|
|
// $ptgArea = pack("C", $this->ptg['ptgArea3dA']);
|
|
// } else {
|
|
// throw new Exception("Unknown class $class");
|
|
// }
|
|
|
|
return $ptgArea . $ext_ref . $row1 . $row2 . $col1. $col2;
|
|
}
|
|
|
|
/**
|
|
* Convert an Excel reference such as A1, $B2, C$3 or $D$4 to a ptgRefV.
|
|
*
|
|
* @access private
|
|
* @param string $cell An Excel cell reference
|
|
* @return string The cell in packed() format with the corresponding ptg
|
|
*/
|
|
function _convertRef2d($cell)
|
|
{
|
|
// $class = 2; // as far as I know, this is magick.
|
|
|
|
// Convert the cell reference
|
|
$cell_array = $this->_cellToPackedRowcol($cell);
|
|
list($row, $col) = $cell_array;
|
|
|
|
// The ptg value depends on the class of the ptg.
|
|
// if ($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 {
|
|
// // TODO: use real error codes
|
|
// throw new Exception("Unknown class $class");
|
|
// }
|
|
return $ptgRef.$row.$col;
|
|
}
|
|
|
|
/**
|
|
* Convert an Excel 3d reference such as "Sheet1!A1" or "Sheet1:Sheet2!A1" to a
|
|
* ptgRef3d.
|
|
*
|
|
* @access private
|
|
* @param string $cell An Excel cell reference
|
|
* @return mixed The packed ptgRef3d token on success.
|
|
*/
|
|
function _convertRef3d($cell)
|
|
{
|
|
// $class = 2; // as far as I know, this is magick.
|
|
|
|
// Split the ref at the ! symbol
|
|
list($ext_ref, $cell) = explode('!', $cell);
|
|
|
|
// Convert the external reference part (different for BIFF8)
|
|
$ext_ref = $this->_getRefIndex($ext_ref);
|
|
|
|
// Convert the cell reference part
|
|
list($row, $col) = $this->_cellToPackedRowcol($cell);
|
|
|
|
// The ptg value depends on the class of the ptg.
|
|
// if ($class == 0) {
|
|
// $ptgRef = pack("C", $this->ptg['ptgRef3d']);
|
|
// } elseif ($class == 1) {
|
|
// $ptgRef = pack("C", $this->ptg['ptgRef3dV']);
|
|
// } elseif ($class == 2) {
|
|
$ptgRef = pack("C", $this->ptg['ptgRef3dA']);
|
|
// } else {
|
|
// throw new Exception("Unknown class $class");
|
|
// }
|
|
|
|
return $ptgRef . $ext_ref. $row . $col;
|
|
}
|
|
|
|
/**
|
|
* Convert an error code to a ptgErr
|
|
*
|
|
* @access private
|
|
* @param string $errorCode The error code for conversion to its ptg value
|
|
* @return string The error code ptgErr
|
|
*/
|
|
function _convertError($errorCode)
|
|
{
|
|
switch ($errorCode) {
|
|
case '#NULL!': return pack("C", 0x00);
|
|
case '#DIV/0!': return pack("C", 0x07);
|
|
case '#VALUE!': return pack("C", 0x0F);
|
|
case '#REF!': return pack("C", 0x17);
|
|
case '#NAME?': return pack("C", 0x1D);
|
|
case '#NUM!': return pack("C", 0x24);
|
|
case '#N/A': return pack("C", 0x2A);
|
|
}
|
|
return pack("C", 0xFF);
|
|
}
|
|
|
|
/**
|
|
* Convert the sheet name part of an external reference, for example "Sheet1" or
|
|
* "Sheet1:Sheet2", to a packed structure.
|
|
*
|
|
* @access private
|
|
* @param string $ext_ref The name of the external reference
|
|
* @return string The reference index in packed() format
|
|
*/
|
|
function _packExtRef($ext_ref)
|
|
{
|
|
$ext_ref = preg_replace("/^'/", '', $ext_ref); // Remove leading ' if any.
|
|
$ext_ref = preg_replace("/'$/", '', $ext_ref); // Remove trailing ' if any.
|
|
|
|
// Check if there is a sheet range eg., Sheet1:Sheet2.
|
|
if (preg_match("/:/", $ext_ref)) {
|
|
list($sheet_name1, $sheet_name2) = explode(':', $ext_ref);
|
|
|
|
$sheet1 = $this->_getSheetIndex($sheet_name1);
|
|
if ($sheet1 == -1) {
|
|
throw new Exception("Unknown sheet name $sheet_name1 in formula");
|
|
}
|
|
$sheet2 = $this->_getSheetIndex($sheet_name2);
|
|
if ($sheet2 == -1) {
|
|
throw new Exception("Unknown sheet name $sheet_name2 in formula");
|
|
}
|
|
|
|
// Reverse max and min sheet numbers if necessary
|
|
if ($sheet1 > $sheet2) {
|
|
list($sheet1, $sheet2) = array($sheet2, $sheet1);
|
|
}
|
|
} else { // Single sheet name only.
|
|
$sheet1 = $this->_getSheetIndex($ext_ref);
|
|
if ($sheet1 == -1) {
|
|
throw new Exception("Unknown sheet name $ext_ref in formula");
|
|
}
|
|
$sheet2 = $sheet1;
|
|
}
|
|
|
|
// References are stored relative to 0xFFFF.
|
|
$offset = -1 - $sheet1;
|
|
|
|
return pack('vdvv', $offset, 0x00, $sheet1, $sheet2);
|
|
}
|
|
|
|
/**
|
|
* Look up the REF index that corresponds to an external sheet name
|
|
* (or range). If it doesn't exist yet add it to the workbook's references
|
|
* array. It assumes all sheet names given must exist.
|
|
*
|
|
* @access private
|
|
* @param string $ext_ref The name of the external reference
|
|
* @return mixed The reference index in packed() format on success
|
|
*/
|
|
function _getRefIndex($ext_ref)
|
|
{
|
|
$ext_ref = preg_replace("/^'/", '', $ext_ref); // Remove leading ' if any.
|
|
$ext_ref = preg_replace("/'$/", '', $ext_ref); // Remove trailing ' if any.
|
|
$ext_ref = str_replace('\'\'', '\'', $ext_ref); // Replace escaped '' with '
|
|
|
|
// Check if there is a sheet range eg., Sheet1:Sheet2.
|
|
if (preg_match("/:/", $ext_ref)) {
|
|
list($sheet_name1, $sheet_name2) = explode(':', $ext_ref);
|
|
|
|
$sheet1 = $this->_getSheetIndex($sheet_name1);
|
|
if ($sheet1 == -1) {
|
|
throw new Exception("Unknown sheet name $sheet_name1 in formula");
|
|
}
|
|
$sheet2 = $this->_getSheetIndex($sheet_name2);
|
|
if ($sheet2 == -1) {
|
|
throw new Exception("Unknown sheet name $sheet_name2 in formula");
|
|
}
|
|
|
|
// Reverse max and min sheet numbers if necessary
|
|
if ($sheet1 > $sheet2) {
|
|
list($sheet1, $sheet2) = array($sheet2, $sheet1);
|
|
}
|
|
} else { // Single sheet name only.
|
|
$sheet1 = $this->_getSheetIndex($ext_ref);
|
|
if ($sheet1 == -1) {
|
|
throw new Exception("Unknown sheet name $ext_ref in formula");
|
|
}
|
|
$sheet2 = $sheet1;
|
|
}
|
|
|
|
// assume all references belong to this document
|
|
$supbook_index = 0x00;
|
|
$ref = pack('vvv', $supbook_index, $sheet1, $sheet2);
|
|
$total_references = count($this->_references);
|
|
$index = -1;
|
|
for ($i = 0; $i < $total_references; ++$i) {
|
|
if ($ref == $this->_references[$i]) {
|
|
$index = $i;
|
|
break;
|
|
}
|
|
}
|
|
// if REF was not found add it to references array
|
|
if ($index == -1) {
|
|
$this->_references[$total_references] = $ref;
|
|
$index = $total_references;
|
|
}
|
|
|
|
return pack('v', $index);
|
|
}
|
|
|
|
/**
|
|
* Look up the index that corresponds to an external sheet name. The hash of
|
|
* sheet names is updated by the addworksheet() method of the
|
|
* PHPExcel_Writer_Excel5_Workbook class.
|
|
*
|
|
* @access private
|
|
* @param string $sheet_name Sheet name
|
|
* @return integer The sheet index, -1 if the sheet was not found
|
|
*/
|
|
function _getSheetIndex($sheet_name)
|
|
{
|
|
if (!isset($this->_ext_sheets[$sheet_name])) {
|
|
return -1;
|
|
} else {
|
|
return $this->_ext_sheets[$sheet_name];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This method is used to update the array of sheet names. It is
|
|
* called by the addWorksheet() method of the
|
|
* PHPExcel_Writer_Excel5_Workbook class.
|
|
*
|
|
* @access public
|
|
* @see PHPExcel_Writer_Excel5_Workbook::addWorksheet()
|
|
* @param string $name The name of the worksheet being added
|
|
* @param integer $index The index of the worksheet being added
|
|
*/
|
|
function setExtSheet($name, $index)
|
|
{
|
|
$this->_ext_sheets[$name] = $index;
|
|
}
|
|
|
|
/**
|
|
* pack() row and column into the required 3 or 4 byte format.
|
|
*
|
|
* @access private
|
|
* @param string $cell The Excel cell reference to be packed
|
|
* @return array Array containing the row and column in packed() format
|
|
*/
|
|
function _cellToPackedRowcol($cell)
|
|
{
|
|
$cell = strtoupper($cell);
|
|
list($row, $col, $row_rel, $col_rel) = $this->_cellToRowcol($cell);
|
|
if ($col >= 256) {
|
|
throw new Exception("Column in: $cell greater than 255");
|
|
}
|
|
if ($row >= 65536) {
|
|
throw new Exception("Row in: $cell greater than 65536 ");
|
|
}
|
|
|
|
// Set the high bits to indicate if row or col are relative.
|
|
$col |= $col_rel << 14;
|
|
$col |= $row_rel << 15;
|
|
$col = pack('v', $col);
|
|
|
|
$row = pack('v', $row);
|
|
|
|
return array($row, $col);
|
|
}
|
|
|
|
/**
|
|
* pack() row range into the required 3 or 4 byte format.
|
|
* Just using maximum col/rows, which is probably not the correct solution
|
|
*
|
|
* @access private
|
|
* @param string $range The Excel range to be packed
|
|
* @return array Array containing (row1,col1,row2,col2) in packed() format
|
|
*/
|
|
function _rangeToPackedRange($range)
|
|
{
|
|
preg_match('/(\$)?(\d+)\:(\$)?(\d+)/', $range, $match);
|
|
// return absolute rows if there is a $ in the ref
|
|
$row1_rel = empty($match[1]) ? 1 : 0;
|
|
$row1 = $match[2];
|
|
$row2_rel = empty($match[3]) ? 1 : 0;
|
|
$row2 = $match[4];
|
|
// Convert 1-index to zero-index
|
|
--$row1;
|
|
--$row2;
|
|
// Trick poor inocent Excel
|
|
$col1 = 0;
|
|
$col2 = 65535; // FIXME: maximum possible value for Excel 5 (change this!!!)
|
|
|
|
// FIXME: this changes for BIFF8
|
|
if (($row1 >= 65536) or ($row2 >= 65536)) {
|
|
throw new Exception("Row in: $range greater than 65536 ");
|
|
}
|
|
|
|
// Set the high bits to indicate if rows are relative.
|
|
$col1 |= $row1_rel << 15;
|
|
$col2 |= $row2_rel << 15;
|
|
$col1 = pack('v', $col1);
|
|
$col2 = pack('v', $col2);
|
|
|
|
$row1 = pack('v', $row1);
|
|
$row2 = pack('v', $row2);
|
|
|
|
return array($row1, $col1, $row2, $col2);
|
|
}
|
|
|
|
/**
|
|
* 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 (0,1) values to indicate
|
|
* whether the row or column are relative references.
|
|
*
|
|
* @access private
|
|
* @param string $cell The Excel cell reference in A1 format.
|
|
* @return array
|
|
*/
|
|
function _cellToRowcol($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;
|
|
$col_ref_length = strlen($col_ref);
|
|
for ($i = 0; $i < $col_ref_length; ++$i) {
|
|
$col += (ord($col_ref{$i}) - 64) * 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.
|
|
*
|
|
* @access private
|
|
*/
|
|
function _advance()
|
|
{
|
|
$i = $this->_current_char;
|
|
$formula_length = strlen($this->_formula);
|
|
// eat up white spaces
|
|
if ($i < $formula_length) {
|
|
while ($this->_formula{$i} == " ") {
|
|
++$i;
|
|
}
|
|
|
|
if ($i < ($formula_length - 1)) {
|
|
$this->_lookahead = $this->_formula{$i+1};
|
|
}
|
|
$token = '';
|
|
}
|
|
|
|
while ($i < $formula_length) {
|
|
$token .= $this->_formula{$i};
|
|
|
|
if ($i < ($formula_length - 1)) {
|
|
$this->_lookahead = $this->_formula{$i+1};
|
|
} else {
|
|
$this->_lookahead = '';
|
|
}
|
|
|
|
if ($this->_match($token) != '') {
|
|
//if ($i < strlen($this->_formula) - 1) {
|
|
// $this->_lookahead = $this->_formula{$i+1};
|
|
//}
|
|
$this->_current_char = $i + 1;
|
|
$this->_current_token = $token;
|
|
return 1;
|
|
}
|
|
|
|
if ($i < ($formula_length - 2)) {
|
|
$this->_lookahead = $this->_formula{$i+2};
|
|
} else { // if we run out of characters _lookahead becomes empty
|
|
$this->_lookahead = '';
|
|
}
|
|
++$i;
|
|
}
|
|
//die("Lexical error ".$this->_current_char);
|
|
}
|
|
|
|
/**
|
|
* Checks if it's a valid token.
|
|
*
|
|
* @access private
|
|
* @param mixed $token The token to check.
|
|
* @return mixed The checked token or false on failure
|
|
*/
|
|
function _match($token)
|
|
{
|
|
switch($token) {
|
|
case "+":
|
|
case "-":
|
|
case "*":
|
|
case "/":
|
|
case "(":
|
|
case ")":
|
|
case ",":
|
|
case ";":
|
|
case ">=":
|
|
case "<=":
|
|
case "=":
|
|
case "<>":
|
|
case "^":
|
|
case "&":
|
|
case "%":
|
|
return $token;
|
|
break;
|
|
case ">":
|
|
if ($this->_lookahead == '=') { // it's a GE token
|
|
break;
|
|
}
|
|
return $token;
|
|
break;
|
|
case "<":
|
|
// it's a LE or a NE token
|
|
if (($this->_lookahead == '=') or ($this->_lookahead == '>')) {
|
|
break;
|
|
}
|
|
return $token;
|
|
break;
|
|
default:
|
|
// if it's a reference A1 or $A$1 or $A1 or A$1
|
|
if (preg_match('/^\$?[A-Ia-i]?[A-Za-z]\$?[0-9]+$/',$token) and
|
|
!preg_match("/[0-9]/",$this->_lookahead) and
|
|
($this->_lookahead != ':') and ($this->_lookahead != '.') and
|
|
($this->_lookahead != '!'))
|
|
{
|
|
return $token;
|
|
}
|
|
// If it's an external reference (Sheet1!A1 or Sheet1:Sheet2!A1 or Sheet1!$A$1 or Sheet1:Sheet2!$A$1)
|
|
elseif (preg_match("/^" . self::REGEX_SHEET_TITLE_UNQUOTED . "(\:" . self::REGEX_SHEET_TITLE_UNQUOTED . ")?\!\\$?[A-Ia-i]?[A-Za-z]\\$?[0-9]+$/u",$token) and
|
|
!preg_match("/[0-9]/",$this->_lookahead) and
|
|
($this->_lookahead != ':') and ($this->_lookahead != '.'))
|
|
{
|
|
return $token;
|
|
}
|
|
// If it's an external reference ('Sheet1'!A1 or 'Sheet1:Sheet2'!A1 or 'Sheet1'!$A$1 or 'Sheet1:Sheet2'!$A$1)
|
|
elseif (preg_match("/^'" . self::REGEX_SHEET_TITLE_QUOTED . "(\:" . self::REGEX_SHEET_TITLE_QUOTED . ")?'\!\\$?[A-Ia-i]?[A-Za-z]\\$?[0-9]+$/u",$token) and
|
|
!preg_match("/[0-9]/",$this->_lookahead) and
|
|
($this->_lookahead != ':') and ($this->_lookahead != '.'))
|
|
{
|
|
return $token;
|
|
}
|
|
// if it's a range A1:A2 or $A$1:$A$2
|
|
elseif (preg_match('/^(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+:(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+$/', $token) and
|
|
!preg_match("/[0-9]/",$this->_lookahead))
|
|
{
|
|
return $token;
|
|
}
|
|
// If it's an external range like Sheet1!A1:B2 or Sheet1:Sheet2!A1:B2 or Sheet1!$A$1:$B$2 or Sheet1:Sheet2!$A$1:$B$2
|
|
elseif (preg_match("/^" . self::REGEX_SHEET_TITLE_UNQUOTED . "(\:" . self::REGEX_SHEET_TITLE_UNQUOTED . ")?\!\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+:\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+$/u",$token) and
|
|
!preg_match("/[0-9]/",$this->_lookahead))
|
|
{
|
|
return $token;
|
|
}
|
|
// If it's an external range like 'Sheet1'!A1:B2 or 'Sheet1:Sheet2'!A1:B2 or 'Sheet1'!$A$1:$B$2 or 'Sheet1:Sheet2'!$A$1:$B$2
|
|
elseif (preg_match("/^'" . self::REGEX_SHEET_TITLE_QUOTED . "(\:" . self::REGEX_SHEET_TITLE_QUOTED . ")?'\!\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+:\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+$/u",$token) and
|
|
!preg_match("/[0-9]/",$this->_lookahead))
|
|
{
|
|
return $token;
|
|
}
|
|
// If it's a number (check that it's not a sheet name or range)
|
|
elseif (is_numeric($token) and
|
|
(!is_numeric($token.$this->_lookahead) or ($this->_lookahead == '')) and
|
|
($this->_lookahead != '!') and ($this->_lookahead != ':'))
|
|
{
|
|
return $token;
|
|
}
|
|
// If it's a string (of maximum 255 characters)
|
|
elseif (preg_match("/\"([^\"]|\"\"){0,255}\"/",$token) and $this->_lookahead != '"' and (substr_count($token, '"')%2 == 0))
|
|
{
|
|
return $token;
|
|
}
|
|
// If it's an error code
|
|
elseif (preg_match("/^#[A-Z0\/]{3,5}[!?]{1}$/", $token) or $token == '#N/A')
|
|
{
|
|
return $token;
|
|
}
|
|
// if it's a function call
|
|
elseif (preg_match("/^[A-Z0-9\xc0-\xdc\.]+$/i",$token) and ($this->_lookahead == "("))
|
|
{
|
|
return $token;
|
|
}
|
|
// It's an argument of some description (e.g. a named range),
|
|
// precise nature yet to be determined
|
|
elseif(substr($token,-1) == ')') {
|
|
return $token;
|
|
}
|
|
return '';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* The parsing method. It parses a formula.
|
|
*
|
|
* @access public
|
|
* @param string $formula The formula to parse, without the initial equal
|
|
* sign (=).
|
|
* @return mixed true on success
|
|
*/
|
|
function parse($formula)
|
|
{
|
|
$this->_current_char = 0;
|
|
$this->_formula = $formula;
|
|
$this->_lookahead = isset($formula{1}) ? $formula{1} : '';
|
|
$this->_advance();
|
|
$this->_parse_tree = $this->_condition();
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* It parses a condition. It assumes the following rule:
|
|
* Cond -> Expr [(">" | "<") Expr]
|
|
*
|
|
* @access private
|
|
* @return mixed The parsed ptg'd tree on success
|
|
*/
|
|
function _condition()
|
|
{
|
|
$result = $this->_expression();
|
|
if ($this->_current_token == "<") {
|
|
$this->_advance();
|
|
$result2 = $this->_expression();
|
|
$result = $this->_createTree('ptgLT', $result, $result2);
|
|
} elseif ($this->_current_token == ">") {
|
|
$this->_advance();
|
|
$result2 = $this->_expression();
|
|
$result = $this->_createTree('ptgGT', $result, $result2);
|
|
} elseif ($this->_current_token == "<=") {
|
|
$this->_advance();
|
|
$result2 = $this->_expression();
|
|
$result = $this->_createTree('ptgLE', $result, $result2);
|
|
} elseif ($this->_current_token == ">=") {
|
|
$this->_advance();
|
|
$result2 = $this->_expression();
|
|
$result = $this->_createTree('ptgGE', $result, $result2);
|
|
} elseif ($this->_current_token == "=") {
|
|
$this->_advance();
|
|
$result2 = $this->_expression();
|
|
$result = $this->_createTree('ptgEQ', $result, $result2);
|
|
} elseif ($this->_current_token == "<>") {
|
|
$this->_advance();
|
|
$result2 = $this->_expression();
|
|
$result = $this->_createTree('ptgNE', $result, $result2);
|
|
} elseif ($this->_current_token == "&") {
|
|
$this->_advance();
|
|
$result2 = $this->_expression();
|
|
$result = $this->_createTree('ptgConcat', $result, $result2);
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* It parses a expression. It assumes the following rule:
|
|
* Expr -> Term [("+" | "-") Term]
|
|
* -> "string"
|
|
* -> "-" Term : Negative value
|
|
* -> "+" Term : Positive value
|
|
* -> Error code
|
|
*
|
|
* @access private
|
|
* @return mixed The parsed ptg'd tree on success
|
|
*/
|
|
function _expression()
|
|
{
|
|
// If it's a string return a string node
|
|
if (preg_match("/\"([^\"]|\"\"){0,255}\"/", $this->_current_token)) {
|
|
$tmp = str_replace('""', '"', $this->_current_token);
|
|
if (($tmp == '"') || ($tmp == '')) $tmp = '""'; // Trap for "" that has been used for an empty string
|
|
$result = $this->_createTree($tmp, '', '');
|
|
$this->_advance();
|
|
return $result;
|
|
// If it's an error code
|
|
} elseif (preg_match("/^#[A-Z0\/]{3,5}[!?]{1}$/", $this->_current_token) or $this->_current_token == '#N/A'){
|
|
$result = $this->_createTree($this->_current_token, 'ptgErr', '');
|
|
$this->_advance();
|
|
return $result;
|
|
// If it's a negative value
|
|
} elseif ($this->_current_token == "-") {
|
|
// catch "-" Term
|
|
$this->_advance();
|
|
$result2 = $this->_expression();
|
|
$result = $this->_createTree('ptgUminus', $result2, '');
|
|
return $result;
|
|
// If it's a positive value
|
|
} elseif ($this->_current_token == "+") {
|
|
// catch "+" Term
|
|
$this->_advance();
|
|
$result2 = $this->_expression();
|
|
$result = $this->_createTree('ptgUplus', $result2, '');
|
|
return $result;
|
|
}
|
|
$result = $this->_term();
|
|
while (($this->_current_token == "+") or
|
|
($this->_current_token == "-") or
|
|
($this->_current_token == "^")) {
|
|
/**/
|
|
if ($this->_current_token == "+") {
|
|
$this->_advance();
|
|
$result2 = $this->_term();
|
|
$result = $this->_createTree('ptgAdd', $result, $result2);
|
|
} elseif ($this->_current_token == "-") {
|
|
$this->_advance();
|
|
$result2 = $this->_term();
|
|
$result = $this->_createTree('ptgSub', $result, $result2);
|
|
} else {
|
|
$this->_advance();
|
|
$result2 = $this->_term();
|
|
$result = $this->_createTree('ptgPower', $result, $result2);
|
|
}
|
|
}
|
|
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.
|
|
*
|
|
* @access private
|
|
* @see _fact()
|
|
* @return array The parsed ptg'd tree
|
|
*/
|
|
function _parenthesizedExpression()
|
|
{
|
|
$result = $this->_createTree('ptgParen', $this->_expression(), '');
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* It parses a term. It assumes the following rule:
|
|
* Term -> Fact [("*" | "/") Fact]
|
|
*
|
|
* @access private
|
|
* @return mixed The parsed ptg'd tree on success
|
|
*/
|
|
function _term()
|
|
{
|
|
$result = $this->_fact();
|
|
while (($this->_current_token == "*") or
|
|
($this->_current_token == "/")) {
|
|
/**/
|
|
if ($this->_current_token == "*") {
|
|
$this->_advance();
|
|
$result2 = $this->_fact();
|
|
$result = $this->_createTree('ptgMul', $result, $result2);
|
|
} else {
|
|
$this->_advance();
|
|
$result2 = $this->_fact();
|
|
$result = $this->_createTree('ptgDiv', $result, $result2);
|
|
}
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* It parses a factor. It assumes the following rule:
|
|
* Fact -> ( Expr )
|
|
* | CellRef
|
|
* | CellRange
|
|
* | Number
|
|
* | Function
|
|
*
|
|
* @access private
|
|
* @return mixed The parsed ptg'd tree on success
|
|
*/
|
|
function _fact()
|
|
{
|
|
if ($this->_current_token == "(") {
|
|
$this->_advance(); // eat the "("
|
|
$result = $this->_parenthesizedExpression();
|
|
if ($this->_current_token != ")") {
|
|
throw new Exception("')' token expected.");
|
|
}
|
|
$this->_advance(); // eat the ")"
|
|
return $result;
|
|
}
|
|
// if it's a reference
|
|
if (preg_match('/^\$?[A-Ia-i]?[A-Za-z]\$?[0-9]+$/',$this->_current_token))
|
|
{
|
|
$result = $this->_createTree($this->_current_token, '', '');
|
|
$this->_advance();
|
|
return $result;
|
|
}
|
|
// If it's an external reference (Sheet1!A1 or Sheet1:Sheet2!A1 or Sheet1!$A$1 or Sheet1:Sheet2!$A$1)
|
|
elseif (preg_match("/^" . self::REGEX_SHEET_TITLE_UNQUOTED . "(\:" . self::REGEX_SHEET_TITLE_UNQUOTED . ")?\!\\$?[A-Ia-i]?[A-Za-z]\\$?[0-9]+$/u",$this->_current_token))
|
|
{
|
|
$result = $this->_createTree($this->_current_token, '', '');
|
|
$this->_advance();
|
|
return $result;
|
|
}
|
|
// If it's an external reference ('Sheet1'!A1 or 'Sheet1:Sheet2'!A1 or 'Sheet1'!$A$1 or 'Sheet1:Sheet2'!$A$1)
|
|
elseif (preg_match("/^'" . self::REGEX_SHEET_TITLE_QUOTED . "(\:" . self::REGEX_SHEET_TITLE_QUOTED . ")?'\!\\$?[A-Ia-i]?[A-Za-z]\\$?[0-9]+$/u",$this->_current_token))
|
|
{
|
|
$result = $this->_createTree($this->_current_token, '', '');
|
|
$this->_advance();
|
|
return $result;
|
|
}
|
|
// if it's a range A1:B2 or $A$1:$B$2
|
|
elseif (preg_match('/^(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+:(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+$/',$this->_current_token) or
|
|
preg_match('/^(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+\.\.(\$)?[A-Ia-i]?[A-Za-z](\$)?[0-9]+$/',$this->_current_token))
|
|
{
|
|
// must be an error?
|
|
$result = $this->_createTree($this->_current_token, '', '');
|
|
$this->_advance();
|
|
return $result;
|
|
}
|
|
// If it's an external range (Sheet1!A1:B2 or Sheet1:Sheet2!A1:B2 or Sheet1!$A$1:$B$2 or Sheet1:Sheet2!$A$1:$B$2)
|
|
elseif (preg_match("/^" . self::REGEX_SHEET_TITLE_UNQUOTED . "(\:" . self::REGEX_SHEET_TITLE_UNQUOTED . ")?\!\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+:\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+$/u",$this->_current_token))
|
|
{
|
|
// must be an error?
|
|
//$result = $this->_current_token;
|
|
$result = $this->_createTree($this->_current_token, '', '');
|
|
$this->_advance();
|
|
return $result;
|
|
}
|
|
// If it's an external range ('Sheet1'!A1:B2 or 'Sheet1'!A1:B2 or 'Sheet1'!$A$1:$B$2 or 'Sheet1'!$A$1:$B$2)
|
|
elseif (preg_match("/^'" . self::REGEX_SHEET_TITLE_QUOTED . "(\:" . self::REGEX_SHEET_TITLE_QUOTED . ")?'\!\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+:\\$?([A-Ia-i]?[A-Za-z])?\\$?[0-9]+$/u",$this->_current_token))
|
|
{
|
|
// must be an error?
|
|
//$result = $this->_current_token;
|
|
$result = $this->_createTree($this->_current_token, '', '');
|
|
$this->_advance();
|
|
return $result;
|
|
}
|
|
// If it's a number or a percent
|
|
elseif (is_numeric($this->_current_token))
|
|
{
|
|
if($this->_lookahead == '%'){
|
|
$result = $this->_createTree('ptgPercent', $this->_current_token, '');
|
|
} else {
|
|
$result = $this->_createTree($this->_current_token, '', '');
|
|
}
|
|
$this->_advance();
|
|
return $result;
|
|
}
|
|
// if it's a function call
|
|
elseif (preg_match("/^[A-Z0-9\xc0-\xdc\.]+$/i",$this->_current_token))
|
|
{
|
|
$result = $this->_func();
|
|
return $result;
|
|
}
|
|
throw new Exception("Syntax error: ".$this->_current_token.
|
|
", lookahead: ".$this->_lookahead.
|
|
", current char: ".$this->_current_char);
|
|
}
|
|
|
|
/**
|
|
* It parses a function call. It assumes the following rule:
|
|
* Func -> ( Expr [,Expr]* )
|
|
*
|
|
* @access private
|
|
* @return mixed The parsed ptg'd tree on success
|
|
*/
|
|
function _func()
|
|
{
|
|
$num_args = 0; // number of arguments received
|
|
$function = strtoupper($this->_current_token);
|
|
$result = ''; // initialize result
|
|
$this->_advance();
|
|
$this->_advance(); // eat the "("
|
|
while ($this->_current_token != ')') {
|
|
/**/
|
|
if ($num_args > 0) {
|
|
if ($this->_current_token == "," or
|
|
$this->_current_token == ";")
|
|
{
|
|
$this->_advance(); // eat the "," or ";"
|
|
} else {
|
|
throw new Exception("Syntax error: comma expected in ".
|
|
"function $function, arg #{$num_args}");
|
|
}
|
|
$result2 = $this->_condition();
|
|
$result = $this->_createTree('arg', $result, $result2);
|
|
} else { // first argument
|
|
$result2 = $this->_condition();
|
|
$result = $this->_createTree('arg', '', $result2);
|
|
}
|
|
++$num_args;
|
|
}
|
|
if (!isset($this->_functions[$function])) {
|
|
throw new Exception("Function $function() doesn't exist");
|
|
}
|
|
$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)) {
|
|
throw new Exception("Incorrect number of arguments in function $function() ");
|
|
}
|
|
|
|
$result = $this->_createTree($function, $result, $num_args);
|
|
$this->_advance(); // eat the ")"
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Creates a tree. In fact an array which may have one or two arrays (sub-trees)
|
|
* as elements.
|
|
*
|
|
* @access private
|
|
* @param mixed $value The value of this node.
|
|
* @param mixed $left The left array (sub-tree) or a final node.
|
|
* @param mixed $right The right array (sub-tree) or a final node.
|
|
* @return array A tree
|
|
*/
|
|
function _createTree($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 $tree The optional tree to convert.
|
|
* @return string The tree in reverse polish notation
|
|
*/
|
|
function toReversePolish($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'])) {
|
|
$converted_tree = $this->toReversePolish($tree['left']);
|
|
$polish .= $converted_tree;
|
|
} elseif ($tree['left'] != '') { // It's a final node
|
|
$converted_tree = $this->_convert($tree['left']);
|
|
$polish .= $converted_tree;
|
|
}
|
|
if (is_array($tree['right'])) {
|
|
$converted_tree = $this->toReversePolish($tree['right']);
|
|
$polish .= $converted_tree;
|
|
} elseif ($tree['right'] != '') { // It's a final node
|
|
$converted_tree = $this->_convert($tree['right']);
|
|
$polish .= $converted_tree;
|
|
}
|
|
// if it's a function convert it here (so we can set it's arguments)
|
|
if (preg_match("/^[A-Z0-9\xc0-\xdc\.]+$/",$tree['value']) and
|
|
!preg_match('/^([A-Ia-i]?[A-Za-z])(\d+)$/',$tree['value']) and
|
|
!preg_match("/^[A-Ia-i]?[A-Za-z](\d+)\.\.[A-Ia-i]?[A-Za-z](\d+)$/",$tree['value']) and
|
|
!is_numeric($tree['value']) and
|
|
!isset($this->ptg[$tree['value']]))
|
|
{
|
|
// left subtree for a function is always an array.
|
|
if ($tree['left'] != '') {
|
|
$left_tree = $this->toReversePolish($tree['left']);
|
|
} else {
|
|
$left_tree = '';
|
|
}
|
|
// add it's left subtree and return.
|
|
return $left_tree.$this->_convertFunction($tree['value'], $tree['right']);
|
|
} else {
|
|
$converted_tree = $this->_convert($tree['value']);
|
|
}
|
|
$polish .= $converted_tree;
|
|
return $polish;
|
|
}
|
|
|
|
}
|