/// <summary>
/// Find the stem(s) of the provided word
/// </summary>
/// <param name="word"> Word to find the stems for </param>
/// <returns> List of stems for the word </returns>
public IList <CharsRef> Stem(char[] word, int length)
{
if (dictionary.needsInputCleaning)
{
scratchSegment.Length = 0;
scratchSegment.Append(word, 0, length);
string cleaned = dictionary.CleanInput(scratchSegment.ToString(), segment);
scratchBuffer = ArrayUtil.Grow(scratchBuffer, cleaned.Length);
length = segment.Length;
segment.CopyTo(0, scratchBuffer, 0, length);
word = scratchBuffer;
}
List <CharsRef> stems = new List <CharsRef>();
IntsRef forms = dictionary.LookupWord(word, 0, length);
if (forms != null)
{
// TODO: some forms should not be added, e.g. ONLYINCOMPOUND
// just because it exists, does not make it valid...
for (int i = 0; i < forms.Length; i++)
{
stems.Add(NewStem(word, length));
}
}
stems.AddRange(Stem(word, length, -1, -1, -1, 0, true, true, false, false));
return(stems);
}
/// <summary>
/// Find the stem(s) of the provided word
/// </summary>
/// <param name="word"> Word to find the stems for </param>
/// <param name="length"> length </param>
/// <returns> <see cref="IList{CharsRef}"/> of stems for the word </returns>
public IList <CharsRef> Stem(char[] word, int length)
{
if (dictionary.needsInputCleaning)
{
scratchSegment.Length = 0;
scratchSegment.Append(word, 0, length);
string cleaned = dictionary.CleanInput(scratchSegment.ToString(), segment);
scratchBuffer = ArrayUtil.Grow(scratchBuffer, cleaned.Length);
length = segment.Length;
segment.CopyTo(0, scratchBuffer, 0, length);
word = scratchBuffer;
}
int caseType = CaseOf(word, length);
if (caseType == UPPER_CASE)
{
// upper: union exact, title, lower
CaseFoldTitle(word, length);
CaseFoldLower(titleBuffer, length);
IList <CharsRef> list = DoStem(word, length, false);
list.AddRange(DoStem(titleBuffer, length, true));
list.AddRange(DoStem(lowerBuffer, length, true));
return(list);
}
else if (caseType == TITLE_CASE)
{
// title: union exact, lower
CaseFoldLower(word, length);
IList <CharsRef> list = DoStem(word, length, false);
list.AddRange(DoStem(lowerBuffer, length, true));
return(list);
}
else
{
// exact match only
return(DoStem(word, length, false));
}
}
