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Directory >> /var/www/html/back/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/

File / Folder	Size	Action
.	-
Database	--	ren
DateTimeExcel	--	ren
Engine	--	ren
Engineering	--	ren
Financial	--	ren
Information	--	ren
Internal	--	ren
Logical	--	ren
LookupRef	--	ren
MathTrig	--	ren
Statistical	--	ren
TextData	--	ren
Token	--	ren
Web	--	ren
locale	--	ren
ArrayEnabled.php	4.938KB	edt ren
BinaryComparison.php	6.353KB	edt ren
Calculation.php	243.059KB	edt ren
Category.php	0.704KB	edt ren
Database.php	23.411KB	edt ren
DateTime.php	35.163KB	edt ren
Engineering.php	51.797KB	edt ren
Exception.php	0.655KB	edt ren
ExceptionHandler.php	0.43KB	edt ren
Financial.php	60.263KB	edt ren
FormulaParser.php	22.094KB	edt ren
FormulaToken.php	4.202KB	edt ren
Functions.php	18.75KB	edt ren
Logical.php	11.396KB	edt ren
LookupRef.php	16.127KB	edt ren
MathTrig.php	40.741KB	edt ren
Statistical.php	55.108KB	edt ren
TextData.php	12.213KB	edt ren
Web.php	0.615KB	edt ren

<?php

namespace PhpOffice\PhpSpreadsheet\Calculation;

/**
 * PARTLY BASED ON:
 * Copyright (c) 2007 E. W. Bachtal, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
 * and associated documentation files (the "Software"), to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial
 * portions of the Software.
 *
 * The software is provided "as is", without warranty of any kind, express or implied, including but not
 * limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In
 * no event shall the authors or copyright holders be liable for any claim, damages or other liability,
 * whether in an action of contract, tort or otherwise, arising from, out of or in connection with the
 * software or the use or other dealings in the software.
 *
 * https://ewbi.blogs.com/develops/2007/03/excel_formula_p.html
 * https://ewbi.blogs.com/develops/2004/12/excel_formula_p.html
 */
class FormulaParser
{
    // Character constants
    const QUOTE_DOUBLE = '"';
    const QUOTE_SINGLE = '\'';
    const BRACKET_CLOSE = ']';
    const BRACKET_OPEN = '[';
    const BRACE_OPEN = '{';
    const BRACE_CLOSE = '}';
    const PAREN_OPEN = '(';
    const PAREN_CLOSE = ')';
    const SEMICOLON = ';';
    const WHITESPACE = ' ';
    const COMMA = ',';
    const ERROR_START = '#';

const OPERATORS_SN = '+-';
    const OPERATORS_INFIX = '+-*/^&=><';
    const OPERATORS_POSTFIX = '%';

/**
     * Formula.
     *
     * @var string
     */
    private $formula;

/**
     * Tokens.
     *
     * @var FormulaToken[]
     */
    private $tokens = [];

/**
     * Create a new FormulaParser.
     *
     * @param ?string $formula Formula to parse
     */
    public function __construct($formula = '')
    {
        // Check parameters
        if ($formula === null) {
            throw new Exception('Invalid parameter passed: formula');
        }

// Initialise values
        $this->formula = trim($formula);
        // Parse!
        $this->parseToTokens();
    }

/**
     * Get Formula.
     *
     * @return string
     */
    public function getFormula()
    {
        return $this->formula;
    }

/**
     * Get Token.
     *
     * @param int $id Token id
     */
    public function getToken(int $id = 0): FormulaToken
    {
        if (isset($this->tokens[$id])) {
            return $this->tokens[$id];
        }

throw new Exception("Token with id $id does not exist.");
    }

/**
     * Get Token count.
     *
     * @return int
     */
    public function getTokenCount()
    {
        return count($this->tokens);
    }

/**
     * Get Tokens.
     *
     * @return FormulaToken[]
     */
    public function getTokens()
    {
        return $this->tokens;
    }

/**
     * Parse to tokens.
     */
    private function parseToTokens(): void
    {
        // No attempt is made to verify formulas; assumes formulas are derived from Excel, where
        // they can only exist if valid; stack overflows/underflows sunk as nulls without exceptions.

// Check if the formula has a valid starting =
        $formulaLength = strlen($this->formula);
        if ($formulaLength < 2 || $this->formula[0] != '=') {
            return;
        }

// Helper variables
        $tokens1 = $tokens2 = $stack = [];
        $inString = $inPath = $inRange = $inError = false;
        $nextToken = null;
        //$token = $previousToken = null;

$index = 1;
        $value = '';

$ERRORS = ['#NULL!', '#DIV/0!', '#VALUE!', '#REF!', '#NAME?', '#NUM!', '#N/A'];
        $COMPARATORS_MULTI = ['>=', '<=', '<>'];

while ($index < $formulaLength) {
            // state-dependent character evaluation (order is important)

// double-quoted strings
            // embeds are doubled
            // end marks token
            if ($inString) {
                if ($this->formula[$index] == self::QUOTE_DOUBLE) {
                    if ((($index + 2) <= $formulaLength) && ($this->formula[$index + 1] == self::QUOTE_DOUBLE)) {
                        $value .= self::QUOTE_DOUBLE;
                        ++$index;
                    } else {
                        $inString = false;
                        $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERAND, FormulaToken::TOKEN_SUBTYPE_TEXT);
                        $value = '';
                    }
                } else {
                    $value .= $this->formula[$index];
                }
                ++$index;

continue;
            }

// single-quoted strings (links)
            // embeds are double
            // end does not mark a token
            if ($inPath) {
                if ($this->formula[$index] == self::QUOTE_SINGLE) {
                    if ((($index + 2) <= $formulaLength) && ($this->formula[$index + 1] == self::QUOTE_SINGLE)) {
                        $value .= self::QUOTE_SINGLE;
                        ++$index;
                    } else {
                        $inPath = false;
                    }
                } else {
                    $value .= $this->formula[$index];
                }
                ++$index;

continue;
            }

// bracked strings (R1C1 range index or linked workbook name)
            // no embeds (changed to "()" by Excel)
            // end does not mark a token
            if ($inRange) {
                if ($this->formula[$index] == self::BRACKET_CLOSE) {
                    $inRange = false;
                }
                $value .= $this->formula[$index];
                ++$index;

continue;
            }

// error values
            // end marks a token, determined from absolute list of values
            if ($inError) {
                $value .= $this->formula[$index];
                ++$index;
                if (in_array($value, $ERRORS)) {
                    $inError = false;
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERAND, FormulaToken::TOKEN_SUBTYPE_ERROR);
                    $value = '';
                }

continue;
            }

// scientific notation check
            if (strpos(self::OPERATORS_SN, $this->formula[$index]) !== false) {
                if (strlen($value) > 1) {
                    if (preg_match('/^[1-9]{1}(\.\d+)?E{1}$/', $this->formula[$index]) != 0) {
                        $value .= $this->formula[$index];
                        ++$index;

continue;
                    }
                }
            }

// independent character evaluation (order not important)

// establish state-dependent character evaluations
            if ($this->formula[$index] == self::QUOTE_DOUBLE) {
                if (strlen($value) > 0) {
                    // unexpected
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_UNKNOWN);
                    $value = '';
                }
                $inString = true;
                ++$index;

continue;
            }

if ($this->formula[$index] == self::QUOTE_SINGLE) {
                if (strlen($value) > 0) {
                    // unexpected
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_UNKNOWN);
                    $value = '';
                }
                $inPath = true;
                ++$index;

continue;
            }

if ($this->formula[$index] == self::BRACKET_OPEN) {
                $inRange = true;
                $value .= self::BRACKET_OPEN;
                ++$index;

continue;
            }

if ($this->formula[$index] == self::ERROR_START) {
                if (strlen($value) > 0) {
                    // unexpected
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_UNKNOWN);
                    $value = '';
                }
                $inError = true;
                $value .= self::ERROR_START;
                ++$index;

continue;
            }

// mark start and end of arrays and array rows
            if ($this->formula[$index] == self::BRACE_OPEN) {
                if (strlen($value) > 0) {
                    // unexpected
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_UNKNOWN);
                    $value = '';
                }

$tmp = new FormulaToken('ARRAY', FormulaToken::TOKEN_TYPE_FUNCTION, FormulaToken::TOKEN_SUBTYPE_START);
                $tokens1[] = $tmp;
                $stack[] = clone $tmp;

$tmp = new FormulaToken('ARRAYROW', FormulaToken::TOKEN_TYPE_FUNCTION, FormulaToken::TOKEN_SUBTYPE_START);
                $tokens1[] = $tmp;
                $stack[] = clone $tmp;

++$index;

continue;
            }

if ($this->formula[$index] == self::SEMICOLON) {
                if (strlen($value) > 0) {
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERAND);
                    $value = '';
                }

$tmp = array_pop($stack);
                $tmp->setValue('');
                $tmp->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_STOP);
                $tokens1[] = $tmp;

$tmp = new FormulaToken(',', FormulaToken::TOKEN_TYPE_ARGUMENT);
                $tokens1[] = $tmp;

$tmp = new FormulaToken('ARRAYROW', FormulaToken::TOKEN_TYPE_FUNCTION, FormulaToken::TOKEN_SUBTYPE_START);
                $tokens1[] = $tmp;
                $stack[] = clone $tmp;

++$index;

continue;
            }

if ($this->formula[$index] == self::BRACE_CLOSE) {
                if (strlen($value) > 0) {
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERAND);
                    $value = '';
                }

$tmp = array_pop($stack);
                $tmp->setValue('');
                $tmp->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_STOP);
                $tokens1[] = $tmp;

++$index;

continue;
            }

// trim white-space
            if ($this->formula[$index] == self::WHITESPACE) {
                if (strlen($value) > 0) {
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERAND);
                    $value = '';
                }
                $tokens1[] = new FormulaToken('', FormulaToken::TOKEN_TYPE_WHITESPACE);
                ++$index;
                while (($this->formula[$index] == self::WHITESPACE) && ($index < $formulaLength)) {
                    ++$index;
                }

continue;
            }

// multi-character comparators
            if (($index + 2) <= $formulaLength) {
                if (in_array(substr($this->formula, $index, 2), $COMPARATORS_MULTI)) {
                    if (strlen($value) > 0) {
                        $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERAND);
                        $value = '';
                    }
                    $tokens1[] = new FormulaToken(substr($this->formula, $index, 2), FormulaToken::TOKEN_TYPE_OPERATORINFIX, FormulaToken::TOKEN_SUBTYPE_LOGICAL);
                    $index += 2;

continue;
                }
            }

// standard infix operators
            if (strpos(self::OPERATORS_INFIX, $this->formula[$index]) !== false) {
                if (strlen($value) > 0) {
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERAND);
                    $value = '';
                }
                $tokens1[] = new FormulaToken($this->formula[$index], FormulaToken::TOKEN_TYPE_OPERATORINFIX);
                ++$index;

continue;
            }

// standard postfix operators (only one)
            if (strpos(self::OPERATORS_POSTFIX, $this->formula[$index]) !== false) {
                if (strlen($value) > 0) {
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERAND);
                    $value = '';
                }
                $tokens1[] = new FormulaToken($this->formula[$index], FormulaToken::TOKEN_TYPE_OPERATORPOSTFIX);
                ++$index;

continue;
            }

// start subexpression or function
            if ($this->formula[$index] == self::PAREN_OPEN) {
                if (strlen($value) > 0) {
                    $tmp = new FormulaToken($value, FormulaToken::TOKEN_TYPE_FUNCTION, FormulaToken::TOKEN_SUBTYPE_START);
                    $tokens1[] = $tmp;
                    $stack[] = clone $tmp;
                    $value = '';
                } else {
                    $tmp = new FormulaToken('', FormulaToken::TOKEN_TYPE_SUBEXPRESSION, FormulaToken::TOKEN_SUBTYPE_START);
                    $tokens1[] = $tmp;
                    $stack[] = clone $tmp;
                }
                ++$index;

continue;
            }

// function, subexpression, or array parameters, or operand unions
            if ($this->formula[$index] == self::COMMA) {
                if (strlen($value) > 0) {
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERAND);
                    $value = '';
                }

$tmp = array_pop($stack);
                $tmp->setValue('');
                $tmp->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_STOP);
                $stack[] = $tmp;

if ($tmp->getTokenType() == FormulaToken::TOKEN_TYPE_FUNCTION) {
                    $tokens1[] = new FormulaToken(',', FormulaToken::TOKEN_TYPE_OPERATORINFIX, FormulaToken::TOKEN_SUBTYPE_UNION);
                } else {
                    $tokens1[] = new FormulaToken(',', FormulaToken::TOKEN_TYPE_ARGUMENT);
                }
                ++$index;

continue;
            }

// stop subexpression
            if ($this->formula[$index] == self::PAREN_CLOSE) {
                if (strlen($value) > 0) {
                    $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERAND);
                    $value = '';
                }

$tmp = array_pop($stack);
                $tmp->setValue('');
                $tmp->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_STOP);
                $tokens1[] = $tmp;

++$index;

continue;
            }

// token accumulation
            $value .= $this->formula[$index];
            ++$index;
        }

// dump remaining accumulation
        if (strlen($value) > 0) {
            $tokens1[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERAND);
        }

// move tokenList to new set, excluding unnecessary white-space tokens and converting necessary ones to intersections
        $tokenCount = count($tokens1);
        for ($i = 0; $i < $tokenCount; ++$i) {
            $token = $tokens1[$i];
            if (isset($tokens1[$i - 1])) {
                $previousToken = $tokens1[$i - 1];
            } else {
                $previousToken = null;
            }
            if (isset($tokens1[$i + 1])) {
                $nextToken = $tokens1[$i + 1];
            } else {
                $nextToken = null;
            }

if ($token === null) {
                continue;
            }

if ($token->getTokenType() != FormulaToken::TOKEN_TYPE_WHITESPACE) {
                $tokens2[] = $token;

continue;
            }

if ($previousToken === null) {
                continue;
            }

if (
                !(
                    (($previousToken->getTokenType() == FormulaToken::TOKEN_TYPE_FUNCTION) && ($previousToken->getTokenSubType() == FormulaToken::TOKEN_SUBTYPE_STOP)) ||
                (($previousToken->getTokenType() == FormulaToken::TOKEN_TYPE_SUBEXPRESSION) && ($previousToken->getTokenSubType() == FormulaToken::TOKEN_SUBTYPE_STOP)) ||
                ($previousToken->getTokenType() == FormulaToken::TOKEN_TYPE_OPERAND)
                )
            ) {
                continue;
            }

if ($nextToken === null) {
                continue;
            }

if (
                !(
                    (($nextToken->getTokenType() == FormulaToken::TOKEN_TYPE_FUNCTION) && ($nextToken->getTokenSubType() == FormulaToken::TOKEN_SUBTYPE_START)) ||
                (($nextToken->getTokenType() == FormulaToken::TOKEN_TYPE_SUBEXPRESSION) && ($nextToken->getTokenSubType() == FormulaToken::TOKEN_SUBTYPE_START)) ||
                ($nextToken->getTokenType() == FormulaToken::TOKEN_TYPE_OPERAND)
                )
            ) {
                continue;
            }

$tokens2[] = new FormulaToken($value, FormulaToken::TOKEN_TYPE_OPERATORINFIX, FormulaToken::TOKEN_SUBTYPE_INTERSECTION);
        }

// move tokens to final list, switching infix "-" operators to prefix when appropriate, switching infix "+" operators
        // to noop when appropriate, identifying operand and infix-operator subtypes, and pulling "@" from function names
        $this->tokens = [];

$tokenCount = count($tokens2);
        for ($i = 0; $i < $tokenCount; ++$i) {
            $token = $tokens2[$i];
            if (isset($tokens2[$i - 1])) {
                $previousToken = $tokens2[$i - 1];
            } else {
                $previousToken = null;
            }
            //if (isset($tokens2[$i + 1])) {
            //    $nextToken = $tokens2[$i + 1];
            //} else {
            //    $nextToken = null;
            //}

if ($token === null) {
                continue;
            }

if ($token->getTokenType() == FormulaToken::TOKEN_TYPE_OPERATORINFIX && $token->getValue() == '-') {
                if ($i == 0) {
                    $token->setTokenType(FormulaToken::TOKEN_TYPE_OPERATORPREFIX);
                } elseif (
                    (($previousToken->getTokenType() == FormulaToken::TOKEN_TYPE_FUNCTION) &&
                        ($previousToken->getTokenSubType() == FormulaToken::TOKEN_SUBTYPE_STOP)) ||
                    (($previousToken->getTokenType() == FormulaToken::TOKEN_TYPE_SUBEXPRESSION) &&
                        ($previousToken->getTokenSubType() == FormulaToken::TOKEN_SUBTYPE_STOP)) ||
                    ($previousToken->getTokenType() == FormulaToken::TOKEN_TYPE_OPERATORPOSTFIX) ||
                    ($previousToken->getTokenType() == FormulaToken::TOKEN_TYPE_OPERAND)
                ) {
                    $token->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_MATH);
                } else {
                    $token->setTokenType(FormulaToken::TOKEN_TYPE_OPERATORPREFIX);
                }

$this->tokens[] = $token;

continue;
            }

if ($token->getTokenType() == FormulaToken::TOKEN_TYPE_OPERATORINFIX && $token->getValue() == '+') {
                if ($i == 0) {
                    continue;
                } elseif (
                    (($previousToken->getTokenType() == FormulaToken::TOKEN_TYPE_FUNCTION) &&
                        ($previousToken->getTokenSubType() == FormulaToken::TOKEN_SUBTYPE_STOP)) ||
                    (($previousToken->getTokenType() == FormulaToken::TOKEN_TYPE_SUBEXPRESSION) &&
                        ($previousToken->getTokenSubType() == FormulaToken::TOKEN_SUBTYPE_STOP)) ||
                    ($previousToken->getTokenType() == FormulaToken::TOKEN_TYPE_OPERATORPOSTFIX) ||
                    ($previousToken->getTokenType() == FormulaToken::TOKEN_TYPE_OPERAND)
                ) {
                    $token->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_MATH);
                } else {
                    continue;
                }

$this->tokens[] = $token;

continue;
            }

if (
                $token->getTokenType() == FormulaToken::TOKEN_TYPE_OPERATORINFIX &&
                $token->getTokenSubType() == FormulaToken::TOKEN_SUBTYPE_NOTHING
            ) {
                if (strpos('<>=', substr($token->getValue(), 0, 1)) !== false) {
                    $token->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_LOGICAL);
                } elseif ($token->getValue() == '&') {
                    $token->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_CONCATENATION);
                } else {
                    $token->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_MATH);
                }

$this->tokens[] = $token;

continue;
            }

if (
                $token->getTokenType() == FormulaToken::TOKEN_TYPE_OPERAND &&
                $token->getTokenSubType() == FormulaToken::TOKEN_SUBTYPE_NOTHING
            ) {
                if (!is_numeric($token->getValue())) {
                    if (strtoupper($token->getValue()) == 'TRUE' || strtoupper($token->getValue()) == 'FALSE') {
                        $token->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_LOGICAL);
                    } else {
                        $token->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_RANGE);
                    }
                } else {
                    $token->setTokenSubType(FormulaToken::TOKEN_SUBTYPE_NUMBER);
                }

$this->tokens[] = $token;

continue;
            }

if ($token->getTokenType() == FormulaToken::TOKEN_TYPE_FUNCTION) {
                if (strlen($token->getValue()) > 0) {
                    if (substr($token->getValue(), 0, 1) == '@') {
                        $token->setValue(substr($token->getValue(), 1));
                    }
                }
            }

$this->tokens[] = $token;
        }
    }
}