TYPO3.Fluid

the repeated declaration of your own namespaces in the template files is an unnecessary overhead. with this update you can define custom namespaces in your Settings.yaml.

enhanced/edited TYPO3\Fluid\Core\Parser\TemplateParser:

/**
 * Namespace identifiers and their component name prefix (Associative array).
 * @var array
 */
protected $namespaces = array();

/**
 * The FLOW3 settings
 * @var array
 */
protected $settings;

/**
 * Injects the settings and resets the namespace array
 *
 * @param array $settings The settings
 * @return void
 */
public function injectSettings(array $settings) {
    $this->settings = $settings;
    $this->reset();
}

/**
 * Resets the parser to its default values.
 *
 * @return void
 */
protected function reset() {
    $this->namespaces = array();
    if (isset($this->settings['Core']['Parser']['TemplateParser']['namespaces'])) {
        $this->namespaces = $this->settings['Core']['Parser']['TemplateParser']['namespaces'];
    }
}

added Settings.yaml in Packages/Framework/TYPO3.Fluid/Configuration (required):

TYPO3:
  Fluid:
    Core:
      Parser:
        TemplateParser:
          namespaces:
            f: 'TYPO3\Fluid\ViewHelpers'

now each package has the possibility to add custom namespaces in Packages/Application/*.*/Configuration/Settings.yaml (optional)

TYPO3:
  Fluid:
    Core:
      Parser:
        TemplateParser:
          namespaces:
            foo: 'my\foo\namespace'