public ScrabbleWords(IEnumerable <Stream> dictionarys)
{
_nodes = new List <CharNode>();
_words = new List <string>();
foreach (var dictionary in dictionarys.Where(dictionary => dictionary != null))
{
using (var r = new StreamReader(dictionary))
{
string word;
while ((word = r.ReadLine()) != null)
{
word = word.Trim().ToUpperInvariant();
if (word.Length > Common.BoardWidth || !new Regex("^[A-Z]+$").IsMatch(word))
{
continue;
}
_words.Add(word);
}
}
foreach (var word in _words)
{
var wArray = word.ToArray();
CharNode node = null;
for (var index = 0; index < wArray.Length; index++)
{
var cNode = wArray[index];
if (index == 0)
{
if (!_nodes.Any(x => x.Char == cNode))
{
_nodes.Add(new CharNode(cNode));
}
node = _nodes.First(x => x.Char == cNode);
}
else
{
if (node != null && !node.Nodes.Any(x => x.Char == cNode))
{
node.Nodes.Add(new CharNode(cNode, node));
}
if (node != null)
{
node = node.Nodes.First(x => x.Char == cNode);
}
}
}
if (node != null)
{
node.Subword = true;
}
}
}
}
public bool Contains(string word, out string aword, StringComparison comparison = StringComparison.InvariantCultureIgnoreCase)
{
aword = word;
if (word.Contains(" "))
{
return(ContainsListedWord(word, out aword, comparison));
}
var wArray = word.ToArray();
CharNode node = null;
for (var index = 0; index < wArray.Length; index++)
{
var cNode = wArray[index];
if (index == 0)
{
if (_nodes.Any(x => x.Char == cNode))
{
node = _nodes.First(x => x.Char == cNode);
}
if (node != null && (node.IsWord && word.Equals(node.Word, comparison)))
{
return(true);
}
continue;
}
if (node != null && node.Nodes.Any(x => x.Char == cNode))
{
node = node.Nodes.First(x => x.Char == cNode);
}
if (node != null && (node.IsWord && node.Word.Equals(word, comparison)))
{
return(node.IsWord && word.Equals(node.Word, comparison));
}
}
return(false);
}
public CharNode(char c, CharNode parent = null)
{
Parent = parent;
Char = c;
Nodes = new List <CharNode>();
}