private float[] stringToVector(string s)
{
ShortDoubleMetaphone metaphone = new ShortDoubleMetaphone(s);
float[] v = new float[size];
for (int i = 0; i < metaphone.PrimaryKey.Length; i++)
{
v[i] = phoneToFloat(metaphone.PrimaryKey[i]);
}
return(v);
}
/// <summary>Initializes the base class with the given word, then computes
/// ushort representations of the metaphone keys computed by the
/// base class</summary>
///
/// <param name="word">Word for which to compute metaphone keys</param>
public ShortDoubleMetaphone(string word) : base(word)
{
m_primaryShortKey = ShortDoubleMetaphone.MetaphoneKeyToShort(this.PrimaryKey);
if (this.AlternateKey != null)
{
m_alternateShortKey = ShortDoubleMetaphone.MetaphoneKeyToShort(this.AlternateKey);
}
else
{
m_alternateShortKey = METAPHONE_INVALID_KEY;
}
}
/// <summary>Sets a new current word, computing the string and ushort representations
/// of the metaphone keys of the given word.
///
/// Note that this uses the new modifier, which hides the base class
/// computeKeys. The base class's computeKeys is then explicitly
/// called as part of the function body. It is important to note that
/// this is NOT equivalent to overriding a virtual function, in that
/// polymorphism is not provided. In this case, polymorphism is of no
/// value, while the potential efficiency gained by not using virtual
/// methods is quite valuable.</summary>
///
/// <param name="word">New current word for which to compute metaphone keys</param>
public override void ComputeKeys(string word)
{
base.ComputeKeys(word);
m_primaryShortKey = ShortDoubleMetaphone.MetaphoneKeyToShort(this.PrimaryKey);
if (this.AlternateKey != null)
{
m_alternateShortKey = ShortDoubleMetaphone.MetaphoneKeyToShort(this.AlternateKey);
}
else
{
m_alternateShortKey = METAPHONE_INVALID_KEY;
}
}
public async Task <IEnumerable <User> > SearchUsers(string searchString)
{
List <User> results = new List <User>();
if (string.IsNullOrEmpty(searchString))
{
return(results);
}
if (searchString.IsValidEmail())
{
var exactMatch = await UserDomain.RetrieveUserByEmail(searchString);
if (exactMatch != null)
{
results.Add(exactMatch);
}
}
else
{
var topResult = await UserDomain.RetrieveUserByUsername(searchString);
if (topResult != null)
{
results.Add(topResult);
}
try
{
var metaphone = new ShortDoubleMetaphone(searchString);
results.AddRange(await UserDomain.RetrieveUsersBySoundsLike(metaphone.PrimaryShortKey));
if (metaphone.AlternateShortKey != ShortDoubleMetaphone.METAPHONE_INVALID_KEY && metaphone.AlternateShortKey != metaphone.PrimaryShortKey)
{
results.AddRange((await UserDomain.RetrieveUsersBySoundsLike(metaphone.AlternateShortKey)));
}
}
catch (Exception) { }
}
return(results.Distinct());
}
