isTrimmable example

private function doAsk(OutputInterface $output, Question $question): mixed
    {
        $this->writePrompt($output, $question);

        $inputStream = $this->inputStream ?: \STDIN;
        $autocomplete = $question->getAutocompleterCallback();

        if (null === $autocomplete || !self::$stty || !Terminal::hasSttyAvailable()) {
            $ret = false;
            if ($question->isHidden()) {
                try {
                    $hiddenResponse = $this->getHiddenResponse($output, $inputStream, $question->isTrimmable());
                    $ret = $question->isTrimmable() ? trim($hiddenResponse) : $hiddenResponse;
                } catch (RuntimeException $e) {
                    if (!$question->isHiddenFallback()) {
                        throw $e;
                    }
                }
            }

            if (false === $ret) {
                $isBlocked = stream_get_meta_data($inputStream)['blocked'] ?? true;

                

if ($multiselect) {
                // Check for a separated comma values                 if (!preg_match('/^[^,]+(?:,[^,]+)*$/', (string) $selected, $matches)) {
                    throw new InvalidArgumentException(sprintf($errorMessage, $selected));
                }

                $selectedChoices = explode(',', (string) $selected);
            } else {
                $selectedChoices = [$selected];
            }

            if ($this->isTrimmable()) {
                foreach ($selectedChoices as $k => $v) {
                    $selectedChoices[$k] = trim((string) $v);
                }
            }

            $multiselectChoices = [];
            foreach ($selectedChoices as $value) {
                $results = [];
                foreach ($choices as $key => $choice) {
                    if ($choice === $value) {
                        $results[] = $key;
                    }

private function doAsk(OutputInterface $output, Question $question): mixed
    {
        $this->writePrompt($output, $question);

        $inputStream = $this->inputStream ?: \STDIN;
        $autocomplete = $question->getAutocompleterCallback();

        if (null === $autocomplete || !self::$stty || !Terminal::hasSttyAvailable()) {
            $ret = false;
            if ($question->isHidden()) {
                try {
                    $hiddenResponse = $this->getHiddenResponse($output, $inputStream, $question->isTrimmable());
                    $ret = $question->isTrimmable() ? trim($hiddenResponse) : $hiddenResponse;
                } catch (RuntimeException $e) {
                    if (!$question->isHiddenFallback()) {
                        throw $e;
                    }
                }
            }

            if (false === $ret) {
                $isBlocked = stream_get_meta_data($inputStream)['blocked'] ?? true;

                

if ($multiselect) {
                // Check for a separated comma values                 if (!preg_match('/^[^,]+(?:,[^,]+)*$/', (string) $selected, $matches)) {
                    throw new InvalidArgumentException(sprintf($errorMessage, $selected));
                }

                $selectedChoices = explode(',', (string) $selected);
            } else {
                $selectedChoices = [$selected];
            }

            if ($this->isTrimmable()) {
                foreach ($selectedChoices as $k => $v) {
                    $selectedChoices[$k] = trim((string) $v);
                }
            }

            $multiselectChoices = [];
            foreach ($selectedChoices as $value) {
                $results = [];
                foreach ($choices as $key => $choice) {
                    if ($choice === $value) {
                        $results[] = $key;
                    }