function test_is_root_relative_url()
{
$this->assertTrue(is_root_relative_url('/img/logo.png'));
$this->assertFalse(is_root_relative_url('//ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.js'));
$this->assertFalse(is_root_relative_url('ajax/libs/jquery/1.4.2/jquery.js'));
$this->assertFalse(is_root_relative_url('http://ajax.googleapis.comajax/libs/jquery/1.4.2/jquery.js'));
}
/**
* Builds a valid \<img /\> HTML tag.
*
* @param string $source
* The source path to the image.
* @param string|array $attributes
* (optional) A single HTML attribute or an array of HTML attributes to be
* added to the rendered tag.
* @return @e string
* A valid \<img /\> HTML tag.
*
* @ingroup helperfunc
*
* @see TagHelper::content_tag()
*
*/
public function image_tag($source, $attributes = NULL)
{
if (!(is_absolute_url($source) || is_root_relative_url($source))) {
$source = image_url($source);
}
$info = pathinfo($source);
$extension = isset($info['extension']) ? $info['extension'] : '';
$options = array("src" => $this->asset_version($source), "alt" => capitalize(basename($source, '.' . $extension)));
if (is_array($attributes)) {
$options = array_merge($options, $attributes);
}
return content_tag("img", NULL, $options);
}
/**
* Check if an URL is relative
* URL are considered relative if they are not absolute and don't begin with a /
*
* @param string $url
* The url to check.
* @return boolean
* Either true if the URL is relative or false if it is not.
*
* @ingroup helperfunc
*/
function is_relative_url($url)
{
return !(is_absolute_url($url) || is_root_relative_url($url));
}