/// <summary>
/// Expands an affix compressed base word
/// </summary>
/// <param name="word" type="NetSpell.SpellChecker.Dictionary.Word">
/// <para>
/// The word to expand
/// </para>
/// </param>
/// <returns>
/// A System.Collections.Generic.List(of String) of words expanded from base word
/// </returns>
public List <string> ExpandWord(Word word)
{
List <string> suffixWords = new List <string>();
List <string> words = new List <string>();
suffixWords.Add(word.Text);
string prefixKeys = "";
// check suffix keys first
foreach (char key in word.AffixKeys)
{
if (SuffixRules.ContainsKey(key.ToString(CultureInfo.CurrentUICulture)))
{
AffixRule rule = SuffixRules[key.ToString(CultureInfo.CurrentUICulture)];
string tempWord = AffixUtility.AddSuffix(word.Text, rule);
if (tempWord != word.Text)
{
if (rule.AllowCombine)
{
suffixWords.Add(tempWord);
}
else
{
words.Add(tempWord);
}
}
}
else if (PrefixRules.ContainsKey(key.ToString(CultureInfo.CurrentUICulture)))
{
prefixKeys += key.ToString(CultureInfo.CurrentUICulture);
}
}
// apply prefixes
foreach (char key in prefixKeys)
{
AffixRule rule = PrefixRules[key.ToString(CultureInfo.CurrentUICulture)];
// apply prefix to all suffix words
foreach (string suffixWord in suffixWords)
{
string tempWord = AffixUtility.AddPrefix(suffixWord, rule);
if (tempWord != suffixWord)
{
words.Add(tempWord);
}
}
}
words.AddRange(suffixWords);
TraceWriter.TraceVerbose("Word Expanded: {0}; Child Words: {1}", word.Text, words.Count);
return(words);
}
/// <summary>
/// Initializes the dictionary by loading and parsing the
/// dictionary file and the user file.
/// </summary>
public void Initialize()
{
// clean up data first
_baseWords.Clear();
_replaceCharacters.Clear();
_prefixRules.Clear();
_suffixRules.Clear();
_phoneticRules.Clear();
_tryCharacters = "";
// the following is used to split a line by white space
Regex _spaceRegx = new Regex(@"[^\s]+", RegexOptions.Compiled);
MatchCollection partMatches;
string currentSection = "";
AffixRule currentRule = null;
string dictionaryPath = Path.Combine(_dictionaryFolder, _dictionaryFile);
TraceWriter.TraceInfo("Loading Dictionary:{0}", dictionaryPath);
// open dictionary file
FileStream fs = null;
try
{
fs = new FileStream(dictionaryPath, FileMode.Open, FileAccess.Read, FileShare.Read);
using (var sr = new StreamReader(fs, Encoding.UTF8))
{
fs = null;
// read line by line
while (sr.Peek() >= 0)
{
string tempLine = sr.ReadLine().Trim();
if (tempLine.Length <= 0)
{
continue;
}
// check for section flag
if (tempLine.StartsWith("[") && tempLine.EndsWith("]"))
{
// set current section that is being parsed
currentSection = tempLine;
continue;
}
// parse line and place in correct object
switch (currentSection)
{
case "[Copyright]":
Copyright += tempLine + "\r\n";
break;
case "[Try]": // ISpell try chars
TryCharacters += tempLine;
break;
case "[Replace]": // ISpell replace chars
ReplaceCharacters.Add(tempLine);
break;
case "[Prefix]": // MySpell prefix rules
case "[Suffix]": // MySpell suffix rules
// split line by white space
partMatches = _spaceRegx.Matches(tempLine);
// if 3 parts, then new rule
if (partMatches.Count == 3)
{
currentRule = new AffixRule();
// part 1 = affix key
currentRule.Name = partMatches[0].Value;
// part 2 = combine flag
if (partMatches[1].Value == "Y")
{
currentRule.AllowCombine = true;
}
// part 3 = entry count, not used
if (currentSection == "[Prefix]")
{
// add to prefix collection
PrefixRules.Add(currentRule.Name, currentRule);
}
else
{
// add to suffix collection
SuffixRules.Add(currentRule.Name, currentRule);
}
}
//if 4 parts, then entry for current rule
else if (partMatches.Count == 4)
{
// part 1 = affix key
if (currentRule.Name == partMatches[0].Value)
{
AffixEntry entry = new AffixEntry();
// part 2 = strip char
if (partMatches[1].Value != "0")
{
entry.StripCharacters = partMatches[1].Value;
}
// part 3 = add chars
entry.AddCharacters = partMatches[2].Value;
// part 4 = conditions
AffixUtility.EncodeConditions(partMatches[3].Value, entry);
currentRule.AffixEntries.Add(entry);
}
}
break;
case "[Phonetic]": // ASpell phonetic rules
// split line by white space
partMatches = _spaceRegx.Matches(tempLine);
if (partMatches.Count >= 2)
{
PhoneticRule rule = new PhoneticRule();
PhoneticUtility.EncodeRule(partMatches[0].Value, ref rule);
rule.ReplaceString = partMatches[1].Value;
_phoneticRules.Add(rule);
}
break;
case "[Words]": // dictionary word list
// splits word into its parts
string[] parts = tempLine.Split('/');
Word tempWord = new Word();
// part 1 = base word
tempWord.Text = parts[0];
// part 2 = affix keys
if (parts.Length >= 2)
{
tempWord.AffixKeys = parts[1];
}
// part 3 = phonetic code
if (parts.Length >= 3)
{
tempWord.PhoneticCode = parts[2];
}
BaseWords.Add(tempWord.Text, tempWord);
break;
} // currentSection switch
} // read line
// close files
}
}
finally
{
if (fs != null)
{
fs.Dispose();
}
}
TraceWriter.TraceInfo("Dictionary Loaded BaseWords:{0}; PrefixRules:{1}; SuffixRules:{2}; PhoneticRules:{3}",
BaseWords.Count, PrefixRules.Count, SuffixRules.Count, PhoneticRules.Count);
LoadUserFile();
_initialized = true;
}