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<?php
declare(strict_types=1);
namespace Laminas\Filter\Word;
use Closure;
use Laminas\Stdlib\StringUtils;
use function mb_strtoupper;
use function preg_quote;
use function preg_replace_callback;
use function strtoupper;
/**
* @psalm-type Options = array{
* separator?: string,
* ...
* }
* @template TOptions of Options
* @extends AbstractSeparator<TOptions>
*/
class SeparatorToCamelCase extends AbstractSeparator
{
/**
* @param mixed $value
* @return mixed
*/
public function filter($value)
{
return self::applyFilterOnlyToStringableValuesAndStringableArrayValues(
$value,
Closure::fromCallable([$this, 'filterNormalizedValue'])
);
}
/**
* @param string|string[] $value
* @return string|string[]
*/
private function filterNormalizedValue($value)
{
// a unicode safe way of converting characters to \x00\x00 notation
$pregQuotedSeparator = preg_quote($this->separator, '#');
if (StringUtils::hasPcreUnicodeSupport()) {
$patterns = [
'#(' . $pregQuotedSeparator . ')(\P{Z}{1})#u',
'#(^\P{Z}{1})#u',
];
$replacements = [
static fn($matches): string => mb_strtoupper($matches[2], 'UTF-8'),
static fn($matches): string => mb_strtoupper($matches[1], 'UTF-8'),
];
} else {
$patterns = [
'#(' . $pregQuotedSeparator . ')([\S]{1})#',
'#(^[\S]{1})#',
];
$replacements = [
static fn($matches): string => strtoupper($matches[2]),
static fn($matches): string => strtoupper($matches[1]),
];
}
$filtered = $value;
foreach ($patterns as $index => $pattern) {
$filtered = preg_replace_callback($pattern, $replacements[$index], $filtered);
}
return $filtered;
}
}