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<?php
namespace Box\Spout\Reader\ODS\Helper;
/**
* Class CellValueFormatter
* This class provides helper functions to format cell values
*
* @package Box\Spout\Reader\ODS\Helper
*/
class CellValueFormatter
{
/** Definition of all possible cell types */
const CELL_TYPE_STRING = 'string';
const CELL_TYPE_FLOAT = 'float';
const CELL_TYPE_BOOLEAN = 'boolean';
const CELL_TYPE_DATE = 'date';
const CELL_TYPE_TIME = 'time';
const CELL_TYPE_CURRENCY = 'currency';
const CELL_TYPE_PERCENTAGE = 'percentage';
const CELL_TYPE_VOID = 'void';
/** Definition of XML nodes names used to parse data */
const XML_NODE_P = 'p';
const XML_NODE_S = 'text:s';
const XML_NODE_A = 'text:a';
const XML_NODE_SPAN = 'text:span';
/** Definition of XML attributes used to parse data */
const XML_ATTRIBUTE_TYPE = 'office:value-type';
const XML_ATTRIBUTE_VALUE = 'office:value';
const XML_ATTRIBUTE_BOOLEAN_VALUE = 'office:boolean-value';
const XML_ATTRIBUTE_DATE_VALUE = 'office:date-value';
const XML_ATTRIBUTE_TIME_VALUE = 'office:time-value';
const XML_ATTRIBUTE_CURRENCY = 'office:currency';
const XML_ATTRIBUTE_C = 'text:c';
/** @var bool Whether date/time values should be returned as PHP objects or be formatted as strings */
protected $shouldFormatDates;
/** @var \Box\Spout\Common\Escaper\ODS Used to unescape XML data */
protected $escaper;
/**
* @param bool $shouldFormatDates Whether date/time values should be returned as PHP objects or be formatted as strings
*/
public function __construct($shouldFormatDates)
{
$this->shouldFormatDates = $shouldFormatDates;
/** @noinspection PhpUnnecessaryFullyQualifiedNameInspection */
$this->escaper = \Box\Spout\Common\Escaper\ODS::getInstance();
}
/**
* Returns the (unescaped) correctly marshalled, cell value associated to the given XML node.
* @see http://docs.oasis-open.org/office/v1.2/os/OpenDocument-v1.2-os-part1.html#refTable13
*
* @param \DOMNode $node
* @return string|int|float|bool|\DateTime|\DateInterval|null The value associated with the cell, empty string if cell's type is void/undefined, null on error
*/
public function extractAndFormatNodeValue($node)
{
$cellType = $node->getAttribute(self::XML_ATTRIBUTE_TYPE);
switch ($cellType) {
case self::CELL_TYPE_STRING:
return $this->formatStringCellValue($node);
case self::CELL_TYPE_FLOAT:
return $this->formatFloatCellValue($node);
case self::CELL_TYPE_BOOLEAN:
return $this->formatBooleanCellValue($node);
case self::CELL_TYPE_DATE:
return $this->formatDateCellValue($node);
case self::CELL_TYPE_TIME:
return $this->formatTimeCellValue($node);
case self::CELL_TYPE_CURRENCY:
return $this->formatCurrencyCellValue($node);
case self::CELL_TYPE_PERCENTAGE:
return $this->formatPercentageCellValue($node);
case self::CELL_TYPE_VOID:
default:
return '';
}
}
/**
* Returns the cell String value.
*
* @param \DOMNode $node
* @return string The value associated with the cell
*/
protected function formatStringCellValue($node)
{
$pNodeValues = [];
$pNodes = $node->getElementsByTagName(self::XML_NODE_P);
foreach ($pNodes as $pNode) {
$currentPValue = '';
foreach ($pNode->childNodes as $childNode) {
if ($childNode instanceof \DOMText) {
$currentPValue .= $childNode->nodeValue;
} else if ($childNode->nodeName === self::XML_NODE_S) {
$spaceAttribute = $childNode->getAttribute(self::XML_ATTRIBUTE_C);
$numSpaces = (!empty($spaceAttribute)) ? intval($spaceAttribute) : 1;
$currentPValue .= str_repeat(' ', $numSpaces);
} else if ($childNode->nodeName === self::XML_NODE_A || $childNode->nodeName === self::XML_NODE_SPAN) {
$currentPValue .= $childNode->nodeValue;
}
}
$pNodeValues[] = $currentPValue;
}
$escapedCellValue = implode("\n", $pNodeValues);
$cellValue = $this->escaper->unescape($escapedCellValue);
return $cellValue;
}
/**
* Returns the cell Numeric value from the given node.
*
* @param \DOMNode $node
* @return int|float The value associated with the cell
*/
protected function formatFloatCellValue($node)
{
$nodeValue = $node->getAttribute(self::XML_ATTRIBUTE_VALUE);
$nodeIntValue = intval($nodeValue);
// The "==" is intentionally not a "===" because only the value matters, not the type
$cellValue = ($nodeIntValue == $nodeValue) ? $nodeIntValue : floatval($nodeValue);
return $cellValue;
}
/**
* Returns the cell Boolean value from the given node.
*
* @param \DOMNode $node
* @return bool The value associated with the cell
*/
protected function formatBooleanCellValue($node)
{
$nodeValue = $node->getAttribute(self::XML_ATTRIBUTE_BOOLEAN_VALUE);
// !! is similar to boolval()
$cellValue = !!$nodeValue;
return $cellValue;
}
/**
* Returns the cell Date value from the given node.
*
* @param \DOMNode $node
* @return \DateTime|string|null The value associated with the cell or NULL if invalid date value
*/
protected function formatDateCellValue($node)
{
// The XML node looks like this:
// <table:table-cell calcext:value-type="date" office:date-value="2016-05-19T16:39:00" office:value-type="date">
// <text:p>05/19/16 04:39 PM</text:p>
// </table:table-cell>
if ($this->shouldFormatDates) {
// The date is already formatted in the "p" tag
$nodeWithValueAlreadyFormatted = $node->getElementsByTagName(self::XML_NODE_P)->item(0);
return $nodeWithValueAlreadyFormatted->nodeValue;
} else {
// otherwise, get it from the "date-value" attribute
try {
$nodeValue = $node->getAttribute(self::XML_ATTRIBUTE_DATE_VALUE);
return new \DateTime($nodeValue);
} catch (\Exception $e) {
return null;
}
}
}
/**
* Returns the cell Time value from the given node.
*
* @param \DOMNode $node
* @return \DateInterval|string|null The value associated with the cell or NULL if invalid time value
*/
protected function formatTimeCellValue($node)
{
// The XML node looks like this:
// <table:table-cell calcext:value-type="time" office:time-value="PT13H24M00S" office:value-type="time">
// <text:p>01:24:00 PM</text:p>
// </table:table-cell>
if ($this->shouldFormatDates) {
// The date is already formatted in the "p" tag
$nodeWithValueAlreadyFormatted = $node->getElementsByTagName(self::XML_NODE_P)->item(0);
return $nodeWithValueAlreadyFormatted->nodeValue;
} else {
// otherwise, get it from the "time-value" attribute
try {
$nodeValue = $node->getAttribute(self::XML_ATTRIBUTE_TIME_VALUE);
return new \DateInterval($nodeValue);
} catch (\Exception $e) {
return null;
}
}
}
/**
* Returns the cell Currency value from the given node.
*
* @param \DOMNode $node
* @return string The value associated with the cell (e.g. "100 USD" or "9.99 EUR")
*/
protected function formatCurrencyCellValue($node)
{
$value = $node->getAttribute(self::XML_ATTRIBUTE_VALUE);
$currency = $node->getAttribute(self::XML_ATTRIBUTE_CURRENCY);
return "$value $currency";
}
/**
* Returns the cell Percentage value from the given node.
*
* @param \DOMNode $node
* @return int|float The value associated with the cell
*/
protected function formatPercentageCellValue($node)
{
// percentages are formatted like floats
return $this->formatFloatCellValue($node);
}
}