* Node parse API.
*
* The parse operation is to check if an input (a string or vector of
* strings) matches the node tree. On success, the result is stored in a
* tree that describes which part of the input matches which node.
* Node parse API.
*
* The parse operation is to check if an input (a string or vector of
* strings) matches the node tree. On success, the result is stored in a
* tree that describes which part of the input matches which node.