NAME
Treex::Core::Node::A
VERSION
version 2.20210102
DESCRIPTION
a-layer (analytical) node
ATTRIBUTES
For each attribute (e.g. tag
), there is a getter method (my $tag = $anode->tag();
) and a setter method ($anode->set_tag('NN');
).
Original w-layer and m-layer attributes
- form
- lemma
- tag
- no_space_after
Original a-layer attributes
- afun
- is_parenthesis_root
- edge_to_collapse
- is_auxiliary
METHODS
Links from a-trees to phrase-structure trees
- $node->get_terminal_pnode
-
Returns a terminal node from the phrase-structure tree that corresponds to the a-node.
- $node->set_terminal_pnode($pnode)
-
Set the given terminal node from the phrase-structure tree as corresponding to the a-node.
- $node->get_nonterminal_pnodes
-
Returns an array of non-terminal nodes from the phrase-structure tree that correspond to the a-node.
- $node->get_pnodes
-
Returns the corresponding terminal node and all non-terminal nodes.
Other
- reset_morphcat
- get_pml_type_name
-
Root and non-root nodes have different PML type in the pml schema (
a-root.type
,a-node.type
) - is_coap_root
-
Is this node a root (or head) of a coordination/apposition construction? On a-layer this is decided based on
afun =~ /^(Coord|Apos)$/
. - get_real_afun()
-
Figures out the real function of the subtree. If its own afun is
AuxP
orAuxC
, finds the first descendant with a real afun and returns it. If this is a coordination or apposition root, finds the first member and returns its afun (but note that members of the same coordination can differ in afuns if some of them haveExD
). - set_real_afun($new_afun)
-
Sets the real function of the subtree. If its current afun is
AuxP
orAuxC
, finds the first descendant with a real afun replaces it. If this is a coordination or apposition root, finds all the members and replaces their afuns (but note that members of the same coordination can differ in afuns if some of them haveExD
; this method can only set the same afun for all). - copy_atree()
-
Recursively copy children from myself to another node. This method is specific to the A layer because it contains the list of attributes. If we could figure out the list automatically, the method would become general enough to reside directly in Node.pm.
- n_node()
-
If this a-node is a part of a named entity, this method returns the corresponding n-node (Treex::Core::Node::N). If this node is a part of more than one named entities, only the most nested one is returned. For example: "Bank of China"
$n_node_for_china = $a_node_china->n_node(); print $n_node_for_china->get_attr('normalized_name'); # China $n_node_for_bank_of_china = $n_node_for_china->get_parent(); print $n_node_for_bank_of_china->get_attr('normalized_name'); # Bank of China
- $node->get_subtree_string
-
Return the string corresponding to a subtree rooted in
$node
. It's computed based on attributesform
andno_space_after
.
AUTHOR
Zdeněk Žabokrtský <zabokrtsky@ufal.mff.cuni.cz>
Martin Popel <popel@ufal.mff.cuni.cz>
COPYRIGHT AND LICENSE
Copyright © 2011-2012 by Institute of Formal and Applied Linguistics, Charles University in Prague
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.