AbstractAbstractaddAbstractclearRemove all the NAGs from the current node or variation.
AbstractclearRemove all the key-value tag pairs from the the current node or variation.
AbstractNode.tags for more details on tags.
AbstractcommentGet the text comment (if any) associated to the current node or variation.
Set the text comment associated to the current node or variation.
If undefined, the existing value (if any) is erased.
OptionalisLongComment: booleanfalse by default.
AbstractfilterRemove from the the current node or variation the NAGs
for which the given filter evaluates to false (and keep those for which it evaluates to true).
AbstractfilterRemove from the the current node or variation the key-value tag pairs for which the given filter evaluates to false
(and keep those for which it evaluates to true).
AbstractNode.tags for more details on tags.
AbstractfollowingIdentifier of the Node that arise after playing distance moves starting from the current Node or Variation.
REMARK: the ID returned by this method may not correspond to an existing Node if the underlying variation is not long enough. Still, in that case, the returned ID is always properly formed, and could correspond to a valid node later if the variation is extended.
If distance is 0, this method returns the same result as AbstractNode.id.
Must be a positive integer.
AbstracthasCheck whether the current node or variation has the given NAG or not.
AbstractidAbstractisWhether the text comment associated to the current node or variation is long or short.
false if no comment is defined.
AbstractisAbstractnagsAbstractplayCreate a new node representing the given move, and append it to the current node or variation.
If there are some pre-existing subsequent nodes, they are all erased.
SAN representation of the move, or '--' for a null-move.
The newly created Node.
exception.InvalidNotation if the move notation cannot be parsed, or if the parsed move would correspond to an illegal move.
AbstractremoveAbstracttagGet the value associated to the given tag key on the current node or variation.
AbstractNode.tags for more details on tags.
Set the value associated to the given tag key on the current node or variation.
If undefined, the existing value (if any) is erased.
AbstractNode.tags for more details on tags.
AbstracttagsReturn the keys of the tags associated to the current node or variation.
The tag mechanism is a key-value associative container allowing to store some arbitrary data
on each node or variation. In PGN, the tags are represented as [%tagKey tagValue] strings
appended to text comments.
The tag keys must be non-empty, and can contain only alphanumeric or underscore characters.
array sorted in increasing order.
Base class for Node and Variation.