getFormatDefinition example

        $this->output = $output;

        $format ??= $this->determineBestFormat();
        $indicatorValues ??= ['-', '\\', '|', '/'];
        $indicatorValues = array_values($indicatorValues);

        if (2 > \count($indicatorValues)) {
            throw new InvalidArgumentException('Must have at least 2 indicator value characters.');
        }

        $this->format = self::getFormatDefinition($format);
        $this->indicatorChangeInterval = $indicatorChangeInterval;
        $this->indicatorValues = $indicatorValues;
        $this->startTime = time();
    }

    /** * Sets the current indicator message. * * @return void */
    public function setMessage(?string $message)
    {

if (null === $this->format) {
            $this->setRealFormat($this->internalFormat ?: $this->determineBestFormat());
        }

        $this->overwrite('');
    }

    private function setRealFormat(string $format): void
    {
        // try to use the _nomax variant if available         if (!$this->max && null !== self::getFormatDefinition($format.'_nomax')) {
            $this->format = self::getFormatDefinition($format.'_nomax');
        } elseif (null !== self::getFormatDefinition($format)) {
            $this->format = self::getFormatDefinition($format);
        } else {
            $this->format = $format;
        }
    }

    /** * Overwrites a previous message to the output. */
    

        $this->output = $output;

        $format ??= $this->determineBestFormat();
        $indicatorValues ??= ['-', '\\', '|', '/'];
        $indicatorValues = array_values($indicatorValues);

        if (2 > \count($indicatorValues)) {
            throw new InvalidArgumentException('Must have at least 2 indicator value characters.');
        }

        $this->format = self::getFormatDefinition($format);
        $this->indicatorChangeInterval = $indicatorChangeInterval;
        $this->indicatorValues = $indicatorValues;
        $this->startTime = time();
    }

    /** * Sets the current indicator message. * * @return void */
    public function setMessage(?string $message)
    {

if (null === $this->format) {
            $this->setRealFormat($this->internalFormat ?: $this->determineBestFormat());
        }

        $this->overwrite('');
    }

    private function setRealFormat(string $format): void
    {
        // try to use the _nomax variant if available         if (!$this->max && null !== self::getFormatDefinition($format.'_nomax')) {
            $this->format = self::getFormatDefinition($format.'_nomax');
        } elseif (null !== self::getFormatDefinition($format)) {
            $this->format = self::getFormatDefinition($format);
        } else {
            $this->format = $format;
        }
    }

    /** * Overwrites a previous message to the output. */