/// <summary>
/// Tries to replace every char of the passed word to chars from the TryCharacters of the dictionary.
/// </summary>
/// <param name="word">source word</param>
/// <param name="suggestedWords">generated suggested words will be placed here</param>
/// <param name="dic"></param>
public override void Apply(string word, Dictionary<string, SpellSuggestion> suggestedWords, SpellDictionary dic)
{
int srcWordLen = word.Length;
string tryChars = dic.TryCharacters;
int tryCharsNum = tryChars.Length;
for (int i = 0; i < srcWordLen; ++i)
{
StringBuilder s = new StringBuilder (word);
for (int k = 0; k < tryCharsNum; ++k)
{
char ch = tryChars[k];
if (s[i] == ch)
continue;
s[i] = ch;
string newWord = s.ToString ();
if (dic.IsWordCorrect (newWord))
{
if (!suggestedWords.ContainsKey (newWord))
suggestedWords.Add (newWord, new SpellSuggestion (newWord, spellChecker.EditDistanceWeights.ReplaceCharWeight));
}
}
}
}
/// <summary>
/// Applies replace patterns of the passed dictionary.
/// </summary>
/// <param name="word">source word</param>
/// <param name="suggestedWords">generated suggested words will be placed here</param>
/// <param name="dic"></param>
public override void Apply(string word, Dictionary<string, SpellSuggestion> suggestedWords, SpellDictionary dic)
{
var replacePatterns = dic.ReplacePatterns;
int n = replacePatterns.Count;
int p;
for (int i = 0; i < n; ++i)
{
var replacePattern = replacePatterns[i];
string searchChars = replacePattern.SearchChars;
string replaceChars = replacePattern.ReplaceChars;
int editDistance = 0;
string newWord = word;
p = 0;
while ((p = newWord.IndexOf (searchChars, p)) != -1)
{
newWord = newWord.Substring (0, p) + replaceChars + newWord.Substring (p + searchChars.Length);
p += replaceChars.Length;
editDistance += spellChecker.EditDistanceWeights.ReplaceCharWeight * Math.Max (searchChars.Length, replaceChars.Length);
if (dic.IsWordCorrect (newWord))
{
if (!suggestedWords.ContainsKey (newWord))
suggestedWords.Add (newWord, new SpellSuggestion (newWord, editDistance));
}
}
}
}
/// <summary>
/// Returns dictionary for the passed culture.
/// </summary>
/// <param name="cultName">e.g., "en-US", or "ru-RU"</param>
/// <returns>null, if there's no such dictionary</returns>
public SpellDictionary GetDictionary(string cultName)
{
SpellDictionary dict= null;
cultName = cultName.ToLower ();
if (dictionaries.ContainsKey (cultName))
{
dict = dictionaries[cultName];
}
else
{
try
{
dict = new SpellDictionary (cultName);
string path = System.IO.Path.Combine (DictionariesBaseFolder, cultName);
dict.Load (path);
dictionaries.Add (cultName, dict);
}
catch (Exception)
{
dict= null;
}
}
return dict;
}
/// <summary>
/// Tries to omit one by one char.
/// </summary>
/// <param name="word">source word</param>
/// <param name="suggestedWords">generated suggested words will be placed here</param>
/// <param name="dic"></param>
public override void Apply(string word, Dictionary<string, SpellSuggestion> suggestedWords, SpellDictionary dic)
{
int wordLen = word.Length;
if (wordLen <= 1)
return;
for (int i = 0; i < wordLen; ++i)
{
string newWord = word.Remove (i, 1);
if (dic.IsWordCorrect (newWord))
{
if (!suggestedWords.ContainsKey (newWord))
suggestedWords.Add (newWord, new SpellSuggestion (newWord, spellChecker.EditDistanceWeights.DeleteCharWeight));
}
}
}
/// <summary>
/// Try to split the passed word onto 2 words.
/// </summary>
/// <param name="word">source word</param>
/// <param name="suggestedWords">generated suggested words will be placed here</param>
/// <param name="dic"></param>
public override void Apply(string word, Dictionary<string, SpellSuggestion> suggestedWords, SpellDictionary dic)
{
int wordLen = word.Length;
if (wordLen < 2)
return;
for (int i = 1; i < wordLen; ++i)
{
string word1 = word.Substring (0, i);
string word2 = word.Substring (i);
if (dic.IsWordCorrect (word1) && dic.IsWordCorrect (word2))
{
string newText = word1 + ' ' + word2;
if (!suggestedWords.ContainsKey (newText))
suggestedWords.Add (newText, new SpellSuggestion (newText, spellChecker.EditDistanceWeights.InsertCharWeight));
}
}
}
/// <summary>
/// Tries to swap every pair of adjacent chars.
/// </summary>
/// <param name="word">source word</param>
/// <param name="suggestedWords">generated suggested words will be placed here</param>
/// <param name="dic"></param>
public override void Apply(string word, Dictionary<string, SpellSuggestion> suggestedWords, SpellDictionary dic)
{
int wordLen = word.Length;
for (int i = 0; i < wordLen - 1; ++i)
{
// swapping...
StringBuilder s = new StringBuilder (word);
char t = s[i];
s[i] = s[i + 1];
s[i + 1] = t;
string newWord = s.ToString ();
if (dic.IsWordCorrect (newWord))
{
if (!suggestedWords.ContainsKey (newWord))
suggestedWords.Add (newWord, new SpellSuggestion (newWord, spellChecker.EditDistanceWeights.SwapCharWeight));
}
}
}
/// <summary>
/// Try to insert a character from TryCharacters into an every position.
/// </summary>
/// <param name="word">source word</param>
/// <param name="suggestedWords">generated suggested words will be placed here</param>
/// <param name="dic"></param>
public override void Apply(string word, Dictionary<string, SpellSuggestion> suggestedWords, SpellDictionary dic)
{
int wordLen = word.Length;
string tryChars = dic.TryCharacters;
int tryCharsNum = tryChars.Length;
for (int i = 0; i <= wordLen; ++i)
{
for (int k = 0; k < tryCharsNum; ++k)
{
string newWord = word.Insert (i, tryChars[k].ToString());
if (dic.IsWordCorrect (newWord))
{
if (!suggestedWords.ContainsKey (newWord))
suggestedWords.Add (newWord, new SpellSuggestion (newWord, spellChecker.EditDistanceWeights.InsertCharWeight));
}
}
}
}
public static void LoadDictionary(TestContext testContext)
{
dic = new SpellDictionary ("test");
string path = System.IO.Path.Combine (testContext.TestDeploymentDir, @"dics\test");
dic.Load (path);
}
/// <summary> /// /// </summary> /// <param name="word">source word</param> /// <param name="suggestedWords">generated suggested words will be placed here</param> /// <param name="dic"></param> public abstract void Apply(string word, Dictionary<string, SpellSuggestion> suggestedWords, SpellDictionary dic);