PHPExcel_Calculation_FormulaParser Class Reference

Collaboration diagram for PHPExcel_Calculation_FormulaParser:

Public Member Functions
	__construct ($pFormula= '')
	Create a new PHPExcel_Calculation_FormulaParser.
	getFormula ()
	Get Formula.
	getToken ($pId=0)
	Get Token.
	getTokenCount ()
	Get Token count.
	getTokens ()
	Get Tokens.

Data Fields
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 = "%"

Private Member Functions
	_parseToTokens ()
	Parse to tokens.

Private Attributes
	$_formula
	$_tokens = array()

Detailed Description

Definition at line 70 of file FormulaParser.php.

Constructor & Destructor Documentation

PHPExcel_Calculation_FormulaParser::__construct

(

$pFormula = ''

)

Create a new PHPExcel_Calculation_FormulaParser.

Parameters

string

$pFormula

Formula to parse

Exceptions

Exception

Definition at line 109 of file FormulaParser.php.

References _parseToTokens().

    {
        // Check parameters
        if (is_null($pFormula)) {
                throw new Exception("Invalid parameter passed: formula");
        }

        // Initialise values
        $this->_formula = trim($pFormula);
        // Parse!
        $this->_parseToTokens();
    }

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Member Function Documentation

PHPExcel_Calculation_FormulaParser::_parseToTokens ( )

private

Parse to tokens.

Definition at line 167 of file FormulaParser.php.

References BRACE_CLOSE, BRACE_OPEN, BRACKET_CLOSE, BRACKET_OPEN, COMMA, ERROR_START, OPERATORS_INFIX, OPERATORS_POSTFIX, OPERATORS_SN, PAREN_CLOSE, PAREN_OPEN, QUOTE_DOUBLE, QUOTE_SINGLE, SEMICOLON, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_CONCATENATION, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_ERROR, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_INTERSECTION, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_LOGICAL, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_MATH, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_NOTHING, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_NUMBER, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_RANGE, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_START, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_STOP, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_TEXT, PHPExcel_Calculation_FormulaToken\TOKEN_SUBTYPE_UNION, PHPExcel_Calculation_FormulaToken\TOKEN_TYPE_ARGUMENT, PHPExcel_Calculation_FormulaToken\TOKEN_TYPE_FUNCTION, PHPExcel_Calculation_FormulaToken\TOKEN_TYPE_OPERAND, PHPExcel_Calculation_FormulaToken\TOKEN_TYPE_OPERATORINFIX, PHPExcel_Calculation_FormulaToken\TOKEN_TYPE_OPERATORPOSTFIX, PHPExcel_Calculation_FormulaToken\TOKEN_TYPE_OPERATORPREFIX, PHPExcel_Calculation_FormulaToken\TOKEN_TYPE_SUBEXPRESSION, PHPExcel_Calculation_FormulaToken\TOKEN_TYPE_UNKNOWN, PHPExcel_Calculation_FormulaToken\TOKEN_TYPE_WHITESPACE, and WHITESPACE.

Referenced by __construct().

                                      {
                // 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 = array();
                $inString       = $inPath       = $inRange      = $inError = false;
                $token          = $previousToken        = $nextToken    = null;

                $index  = 1;
                $value  = '';

                $ERRORS                         = array("#NULL!", "#DIV/0!", "#VALUE!", "#REF!", "#NAME?", "#NUM!", "#N/A");
                $COMPARATORS_MULTI      = array(">=", "<=", "<>");

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

                        // double-quoted strings
                        // embeds are doubled
                        // end marks token
                        if ($inString) {
                                if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::QUOTE_DOUBLE) {
                                        if ((($index + 2) <= $formulaLength) && ($this->_formula{$index + 1} == PHPExcel_Calculation_FormulaParser::QUOTE_DOUBLE)) {
                                                $value .= PHPExcel_Calculation_FormulaParser::QUOTE_DOUBLE;
                                                ++$index;
                                        } else {
                                                $inString = false;
                                                $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND, PHPExcel_Calculation_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{$index} == PHPExcel_Calculation_FormulaParser::QUOTE_SINGLE) {
                                        if ((($index + 2) <= $formulaLength) && ($this->_formula{$index + 1} == PHPExcel_Calculation_FormulaParser::QUOTE_SINGLE)) {
                                                $value .= PHPExcel_Calculation_FormulaParser::QUOTE_SINGLE;
                                                ++$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} == PHPExcel_Calculation_FormulaParser::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;
                                        $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_ERROR);
                                        $value = "";
                                }
                                continue;
                        }

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

                        // independent character evaluation (order not important)

                        // establish state-dependent character evaluations
                        if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::QUOTE_DOUBLE) {
                                if (strlen($value > 0)) {  // unexpected
                                        $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_UNKNOWN);
                                        $value = "";
                                }
                                $inString = true;
                                ++$index;
                                continue;
                        }

                        if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::QUOTE_SINGLE) {
                                if (strlen($value) > 0) { // unexpected
                                        $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_UNKNOWN);
                                        $value = "";
                                }
                                $inPath = true;
                                ++$index;
                                continue;
                        }

                        if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::BRACKET_OPEN) {
                                $inRange = true;
                                $value .= PHPExcel_Calculation_FormulaParser::BRACKET_OPEN;
                                ++$index;
                                continue;
                        }

                        if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::ERROR_START) {
                                if (strlen($value) > 0) { // unexpected
                                        $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_UNKNOWN);
                                        $value = "";
                                }
                                $inError = true;
                                $value .= PHPExcel_Calculation_FormulaParser::ERROR_START;
                                ++$index;
                                continue;
                        }

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

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

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

                                ++$index;
                                continue;
                        }

                        if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::SEMICOLON) {
                                if (strlen($value) > 0) {
                                        $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
                                        $value = "";
                                }

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

                                $tmp = new PHPExcel_Calculation_FormulaToken(",", PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_ARGUMENT);
                                $tokens1[] = $tmp;

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

                                ++$index;
                                continue;
                        }

                        if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::BRACE_CLOSE) {
                                if (strlen($value) > 0) {
                                        $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
                                        $value = "";
                                }

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

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

                                ++$index;
                                continue;
                        }

                        // trim white-space
                        if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::WHITESPACE) {
                                if (strlen($value) > 0) {
                                        $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
                                        $value = "";
                                }
                                $tokens1[] = new PHPExcel_Calculation_FormulaToken("", PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_WHITESPACE);
                                ++$index;
                                while (($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::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) {
                                                $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
                                                $value = "";
                                        }
                                        $tokens1[] = new PHPExcel_Calculation_FormulaToken(substr($this->_formula, $index, 2), PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORINFIX, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_LOGICAL);
                                        $index += 2;
                                        continue;
                                }
                        }

                        // standard infix operators
                        if (strpos(PHPExcel_Calculation_FormulaParser::OPERATORS_INFIX, $this->_formula{$index}) !== false) {
                                if (strlen($value) > 0) {
                                        $tokens1[] =new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
                                        $value = "";
                                }
                                $tokens1[] = new PHPExcel_Calculation_FormulaToken($this->_formula{$index}, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORINFIX);
                                ++$index;
                                continue;
                        }

                        // standard postfix operators (only one)
                        if (strpos(PHPExcel_Calculation_FormulaParser::OPERATORS_POSTFIX, $this->_formula{$index}) !== false) {
                                if (strlen($value) > 0) {
                                        $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
                                        $value = "";
                                }
                                $tokens1[] = new PHPExcel_Calculation_FormulaToken($this->_formula{$index}, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORPOSTFIX);
                                ++$index;
                                continue;
                        }

                        // start subexpression or function
                        if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::PAREN_OPEN) {
                                if (strlen($value) > 0) {
                                        $tmp = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_FUNCTION, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_START);
                                        $tokens1[] = $tmp;
                                        $stack[] = clone $tmp;
                                        $value = "";
                                } else {
                                        $tmp = new PHPExcel_Calculation_FormulaToken("", PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_SUBEXPRESSION, PHPExcel_Calculation_FormulaToken::TOKEN_SUBTYPE_START);
                                        $tokens1[] = $tmp;
                                        $stack[] = clone $tmp;
                                }
                                ++$index;
                                continue;
                        }

                        // function, subexpression, or array parameters, or operand unions
                        if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::COMMA) {
                                if (strlen($value) > 0) {
                                        $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
                                        $value = "";
                                }

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

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

                        // stop subexpression
                        if ($this->_formula{$index} == PHPExcel_Calculation_FormulaParser::PAREN_CLOSE) {
                                if (strlen($value) > 0) {
                                        $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERAND);
                                        $value = "";
                                }

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

                                ++$index;
                                continue;
                        }

                // token accumulation
                        $value .= $this->_formula{$index};
                        ++$index;
                }

                // dump remaining accumulation
                if (strlen($value) > 0) {
                        $tokens1[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_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 (is_null($token)) {
                                continue;
                        }

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

                        if (is_null($previousToken)) {
                                continue;
                        }

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

                        if (is_null($nextToken)) {
                                continue;
                        }

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

                        $tokens2[] = new PHPExcel_Calculation_FormulaToken($value, PHPExcel_Calculation_FormulaToken::TOKEN_TYPE_OPERATORINFIX, PHPExcel_Calculation_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 = array();

                $tokenCount = count($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 (is_null($token)) {
                                continue;
                        }

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

                                $this->_tokens[] = $token;
                                continue;
                        }

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

                                $this->_tokens[] = $token;
                                continue;
                        }

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

                                $this->_tokens[] = $token;
                                continue;
                        }

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

                                $this->_tokens[] = $token;
                                continue;
                        }

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

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

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PHPExcel_Calculation_FormulaParser::getFormula

(

)

Get Formula.

Returns

string

Definition at line 127 of file FormulaParser.php.

References $_formula.

                                 {
        return $this->_formula;
    }

PHPExcel_Calculation_FormulaParser::getToken

(

$pId = 0

)

Get Token.

Parameters

int

$pId

Token id

Returns

string

Exceptions

Exception

Definition at line 138 of file FormulaParser.php.

                                       {
        if (isset($this->_tokens[$pId])) {
                return $this->_tokens[$pId];
        } else {
                throw new Exception("Token with id $pId does not exist.");
        }
    }

PHPExcel_Calculation_FormulaParser::getTokenCount

(

)

Get Token count.

Returns

string

Definition at line 151 of file FormulaParser.php.

                                    {
        return count($this->_tokens);
    }

PHPExcel_Calculation_FormulaParser::getTokens

(

)

Get Tokens.

Returns

PHPExcel_Calculation_FormulaToken[]

Definition at line 160 of file FormulaParser.php.

References $_tokens.

                                {
        return $this->_tokens;
    }

Field Documentation

PHPExcel_Calculation_FormulaParser::$_formula

private

Definition at line 94 of file FormulaParser.php.

Referenced by getFormula().

PHPExcel_Calculation_FormulaParser::$_tokens = array()

private

Definition at line 101 of file FormulaParser.php.

Referenced by getTokens().

const PHPExcel_Calculation_FormulaParser::BRACE_CLOSE = '}'

Definition at line 77 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::BRACE_OPEN = '{'

Definition at line 76 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::BRACKET_CLOSE = ']'

Definition at line 74 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::BRACKET_OPEN = '['

Definition at line 75 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::COMMA = ','

Definition at line 82 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::ERROR_START = '#'

Definition at line 83 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::OPERATORS_INFIX = "+-*/^&=><"

Definition at line 86 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::OPERATORS_POSTFIX = "%"

Definition at line 87 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::OPERATORS_SN = "+-"

Definition at line 85 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::PAREN_CLOSE = ')'

Definition at line 79 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::PAREN_OPEN = '('

Definition at line 78 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::QUOTE_DOUBLE = '"'

Definition at line 72 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::QUOTE_SINGLE = '\''

Definition at line 73 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::SEMICOLON = ';'

Definition at line 80 of file FormulaParser.php.

Referenced by _parseToTokens().

const PHPExcel_Calculation_FormulaParser::WHITESPACE = ' '

Definition at line 81 of file FormulaParser.php.

Referenced by _parseToTokens().

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The documentation for this class was generated from the following file:

• Services/Excel/classes/PHPExcel/Calculation/FormulaParser.php