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<?php
namespace PhpOffice\PhpSpreadsheet;
use PhpOffice\PhpSpreadsheet\Calculation\Category;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
use ReflectionClass;
use ReflectionException;
use UnexpectedValueException;
class DocumentGenerator
{
/**
* @param array[] $phpSpreadsheetFunctions
*
* @throws ReflectionException
*
* @return string
*/
public static function generateFunctionListByCategory(array $phpSpreadsheetFunctions): string
{
$result = "# Function list by category\n";
foreach (self::getCategories() as $categoryConstant => $category) {
$result .= "\n";
$result .= "## {$categoryConstant}\n";
$result .= "\n";
$lengths = [20, 42];
$result .= self::tableRow($lengths, ['Excel Function', 'PhpSpreadsheet Function']) . "\n";
$result .= self::tableRow($lengths, null) . "\n";
foreach ($phpSpreadsheetFunctions as $excelFunction => $functionInfo) {
if ($category === $functionInfo['category']) {
$phpFunction = self::getPhpSpreadsheetFunctionText($functionInfo['functionCall']);
$result .= self::tableRow($lengths, [$excelFunction, $phpFunction]) . "\n";
}
}
}
return $result;
}
/**
* @throws ReflectionException
*
* @return array
*/
private static function getCategories(): array
{
return (new ReflectionClass(Category::class))->getConstants();
}
private static function tableRow(array $lengths, array $values = null): string
{
$result = '';
foreach (array_map(null, $lengths, $values ?? []) as $i => [$length, $value]) {
$pad = $value === null ? '-' : ' ';
if ($i > 0) {
$result .= '|' . $pad;
}
$result .= str_pad($value ?? '', $length, $pad);
}
return rtrim($result, ' ');
}
private static function getPhpSpreadsheetFunctionText($functionCall): string
{
if (is_string($functionCall)) {
return $functionCall;
}
if ($functionCall === [Functions::class, 'DUMMY']) {
return '**Not yet Implemented**';
}
if (is_array($functionCall)) {
return "\\{$functionCall[0]}::{$functionCall[1]}";
}
throw new UnexpectedValueException(
'$functionCall is of type ' . gettype($functionCall) . '. string or array expected'
);
}
/**
* @param array[] $phpSpreadsheetFunctions
*
* @throws ReflectionException
*
* @return string
*/
public static function generateFunctionListByName(array $phpSpreadsheetFunctions): string
{
$categoryConstants = array_flip(self::getCategories());
$result = "# Function list by name\n";
$lastAlphabet = null;
foreach ($phpSpreadsheetFunctions as $excelFunction => $functionInfo) {
$lengths = [20, 31, 42];
if ($lastAlphabet !== $excelFunction[0]) {
$lastAlphabet = $excelFunction[0];
$result .= "\n";
$result .= "## {$lastAlphabet}\n";
$result .= "\n";
$result .= self::tableRow($lengths, ['Excel Function', 'Category', 'PhpSpreadsheet Function']) . "\n";
$result .= self::tableRow($lengths, null) . "\n";
}
$category = $categoryConstants[$functionInfo['category']];
$phpFunction = self::getPhpSpreadsheetFunctionText($functionInfo['functionCall']);
$result .= self::tableRow($lengths, [$excelFunction, $category, $phpFunction]) . "\n";
}
return $result;
}
}