o @@i @sdZddlZGdddZdS)u In computer science, a trie (/ˈtraɪ/, /ˈtriː/), also called digital tree or prefix tree, is a type of k-ary search tree, a tree data structure used for locating specific keys from within a set. These keys are most often strings, with links between nodes defined not by the entire key, but by individual characters. In order to access a key (to recover its value, change it, or remove it), the trie is traversed depth-first, following the links between nodes, which represent each character in the key. Nc@sReZdZdZGdddZddZdejejfddZ de fd d Z d d Z d S)Trieu In computer science, a trie (/ˈtraɪ/, /ˈtriː/), also called digital tree or prefix tree, is a type of k-ary search tree, a tree data structure used for locating specific keys from within a set. These keys are most often strings, with links between nodes defined not by the entire key, but by individual characters. In order to access a key (to recover its value, change it, or remove it), the trie is traversed depth-first, following the links between nodes, which represent each character in the key. c@sFeZdZdZd dejejfddZdefddZ dejfd d Z dS) z Trie.TrieNodez8 This class represents a node in a trie NvaluecCsi|_||_dSN) _children_value)selfrrY/home/ubuntu/transcripts/venv/lib/python3.10/site-packages/borb/datastructure/str_trie.py__init__s zTrie.TrieNode.__init__returncCs*|jdurdndtdd|jDS)NrcSsg|]\}}t|qSr)len).0kvrrr "sz)Trie.TrieNode.__len__..)rsumritemsrrrr __len__ szTrie.TrieNode.__len__cCs|jS)z} This function returns the value of this TrieNode :return: the value of this TrieNode )rrrrr get_value%szTrie.TrieNode.get_valuer) __name__ __module__ __qualname____doc__typingOptionalAnyr intrrrrrr TrieNodes rcCs d|_dSr)_rootrrrr r 0s z Trie.__init__r cCsN|j}|dur dS|D]}||jvr|j|}q dS|dus#Jd|S)Nz5unexpected error while performing __getitem__ on Trie)r rr)ritemncrrr __getitem__7s  zTrie.__getitem__cCs|jdurdSt|jS)Nr)r r rrrr rEsz Trie.__len__cCst|j}|durt|_|j}|dusJd|D]}||jvr't|j|<|j|}q|dus5Jd||_|S)Nz5unexpected error while performing __setitem__ on Trie)r rrrr)rkeyrr"r#rrr __setitem__Hs   zTrie.__setitem__N) rrrrrr rrrr$rrr&rrrr rs r)rrrrrrr s