public void WasTyped(string word, int times)
{
if (String.IsNullOrEmpty(word))
{
this.popularity += times;
return;
}
this.popularity += times;
word = word.ToLower();
var firstChar = word[0];
var postfix = word.Substring(1);
if (Trie.IsLatinLetter(firstChar) == false)
{
return;
}
if (this.subTries[firstChar] == null)
{
this.subTries[firstChar] = new Trie();
}
this.subTries[firstChar].WasTyped(postfix, times);
}
public Trie GetSubTrie(char letter)
{
letter = Char.ToLower(letter);
if (Trie.IsLatinLetter(letter) == false)
{
return(null);
}
return(this.subTries[letter] != null ? this.subTries[letter] : null);
}
public static bool IsValidWord(string word)
{
foreach (var letter in word)
{
if (Trie.IsLatinLetter(letter) == false)
{
return(false);
}
}
return(true);
}
public bool ValidCharacter(char character)
{
return(Trie.IsLatinLetter(character) || Trie.IsWordSeparator(character));
}