The target node can be provided as string or as a Node object; if not specified
at all, the generated URI will refer to the current document node inside the TypoScript context.
When specifying the node argument as string, the following conventions apply:
*node starts with /:*
The given path is an absolute node path and is treated as such.
Example: /sites/acmecom/home/about/us
*node does not start with /:*
The given path is treated as a path relative to the current node.
Examples: given that the current node is /sites/acmecom/products/,
stapler results in /sites/acmecom/products/stapler,
../about results in /sites/acmecom/about/,
./neos/info results in /sites/acmecom/products/neos/info.
*node starts with a tilde character (~):*
The given path is treated as a path relative to the current site node.
Example: given that the current node is /sites/acmecom/products/,
~/about/us results in /sites/acmecom/about/us,
~ results in /sites/acmecom.