void Trie::insertWord(string word){
incrementWordCount();
TrieNode* node = root;
for(unsigned int i = 0; i < word.length(); i++){
if(node->findChild(word[i]) == NULL){
node = node->insertChild(word[i]);
}
else{
node = node->findChild(word[i]);
}
}
node->setIsWord();
node->instantiatePostingList(word); // implemented in trieNode
node->setDocFreq();
}
TrieNode* buildTrieTree(vector<string>& words) {
TrieNode* root = new TrieNode();
for (string word : words) {
int index = 0;
TrieNode* cur = root;
while (index < word.size() && cur->getNext(word[index]) != NULL) {
cur = cur->getNext(word[index]);
index++;
}
while (index < word.size()) {
cur->setNext(word[index]);
cur = cur->getNext(word[index]);
index++;
}
cur->setIsWord(true);
}
return root;
}