Symfony\Component\Console\Style\SymfonyStyle::createBlock PHP Method

    private function createBlock($messages, $type = null, $style = null, $prefix = ' ', $padding = false, $escape = false)
    {
        $indentLength = 0;
        $prefixLength = Helper::strlenWithoutDecoration($this->getFormatter(), $prefix);
        $lines = array();

        if (null !== $type) {
            $type = sprintf('[%s] ', $type);
            $indentLength = strlen($type);
            $lineIndentation = str_repeat(' ', $indentLength);
        }

        // wrap and add newlines for each element
        foreach ($messages as $key => $message) {
            if ($escape) {
                $message = OutputFormatter::escape($message);
            }

            $lines = array_merge($lines, explode(PHP_EOL, wordwrap($message, $this->lineLength - $prefixLength - $indentLength, PHP_EOL, true)));

            if (count($messages) > 1 && $key < count($messages) - 1) {
                $lines[] = '';
            }
        }

        $firstLineIndex = 0;
        if ($padding && $this->isDecorated()) {
            $firstLineIndex = 1;
            array_unshift($lines, '');
            $lines[] = '';
        }

        foreach ($lines as $i => &$line) {
            if (null !== $type) {
                $line = $firstLineIndex === $i ? $type.$line : $lineIndentation.$line;
            }

            $line = $prefix.$line;
            $line .= str_repeat(' ', $this->lineLength - Helper::strlenWithoutDecoration($this->getFormatter(), $line));

            if ($style) {
                $line = sprintf('<%s>%s</>', $style, $line);
            }
        }

        return $lines;
    }