public static LfMultiParagraph GetCustomStTextValuesAsLfMultiPara(IStText obj, int flid,
IWritingSystemManager wsManager, IFwMetaDataCache metaDataCacheAccessor, int fallbackWs)
{
if (obj == null || obj.ParagraphsOS == null || obj.ParagraphsOS.Count == 0) return null;
var result = new LfMultiParagraph();
result.Paragraphs = obj.ParagraphsOS.OfType<IStTxtPara>().Where(para => para.Contents != null).Select(para => FdoParaToLfPara(para, wsManager)).ToList();
// StText objects in FDO have a single primary writing system, unlike MultiString or MultiUnicode objects
int fieldWs = metaDataCacheAccessor.GetFieldWs(flid);
string wsStr = wsManager.GetStrFromWs(fieldWs);
if (wsStr == null) wsStr = wsManager.GetStrFromWs(fallbackWs);
result.InputSystem = wsStr;
return result;
}
public static LfMultiParagraph GetCustomStTextValuesAsLfMultiPara(IStText obj, int flid,
IWritingSystemManager wsManager, IFwMetaDataCache metaDataCacheAccessor, int fallbackWs)
{
if (obj == null || obj.ParagraphsOS == null || obj.ParagraphsOS.Count == 0)
{
return(null);
}
var result = new LfMultiParagraph();
// result.Guid = obj.Guid; // TODO: See if this would break LF PHP
result.Paragraphs = obj.ParagraphsOS.OfType <IStTxtPara>().Where(para => para.Contents != null).Select(para => FdoParaToLfPara(para, wsManager)).ToList();
// StText objects in FDO have a single primary writing system, unlike MultiString or MultiUnicode objects
int fieldWs = metaDataCacheAccessor.GetFieldWs(flid);
string wsStr = wsManager.GetStrFromWs(fieldWs);
if (wsStr == null)
{
wsStr = wsManager.GetStrFromWs(fallbackWs);
}
result.InputSystem = wsStr;
return(result);
}
/// <summary>
/// Searches an index for the specified string.
/// </summary>
/// <param name="indexId">The index ID.</param>
/// <param name="tss">The string.</param>
/// <returns>The search results.</returns>
public IEnumerable <T> Search(int indexId, ITsString tss)
{
if (tss == null || string.IsNullOrEmpty(tss.Text))
{
return(Enumerable.Empty <T>());
}
HashSet <T> results = null;
foreach (Tuple <int, string> wsStr in GetWsStrings(tss))
{
SortKeyIndex index = GetIndex(indexId, wsStr.Item1);
ICollator collator = m_wsManager.Get(wsStr.Item1).Collator;
switch (m_type)
{
case SearchType.Exact:
case SearchType.Prefix:
{
byte[] sortKey = collator.GetSortKey(wsStr.Item2).KeyData;
var lower = new byte[wsStr.Item2.Length * SortKeyFactor];
Icu.GetSortKeyBound(sortKey, Icu.UColBoundMode.UCOL_BOUND_LOWER, ref lower);
var upper = new byte[wsStr.Item2.Length * SortKeyFactor];
Icu.GetSortKeyBound(sortKey,
m_type == SearchType.Exact
? Icu.UColBoundMode.UCOL_BOUND_UPPER
: Icu.UColBoundMode.UCOL_BOUND_UPPER_LONG, ref upper);
IEnumerable <T> items = index.GetItems(lower, upper);
if (results == null)
{
results = new HashSet <T>(items);
}
else
{
results.IntersectWith(items);
}
break;
}
case SearchType.FullText:
string locale = m_wsManager.GetStrFromWs(wsStr.Item1);
string[] tokens = Icu.Split(Icu.UBreakIteratorType.UBRK_WORD, locale, wsStr.Item2).ToArray();
for (int i = 0; i < tokens.Length; i++)
{
byte[] sortKey = collator.GetSortKey(tokens[i]).KeyData;
var lower = new byte[tokens[i].Length * SortKeyFactor];
Icu.GetSortKeyBound(sortKey, Icu.UColBoundMode.UCOL_BOUND_LOWER, ref lower);
var upper = new byte[tokens[i].Length * SortKeyFactor];
Icu.GetSortKeyBound(sortKey,
i < tokens.Length - 1
? Icu.UColBoundMode.UCOL_BOUND_UPPER
: Icu.UColBoundMode.UCOL_BOUND_UPPER_LONG, ref upper);
IEnumerable <T> items = index.GetItems(lower, upper);
if (results == null)
{
results = new HashSet <T>(items);
}
else
{
results.IntersectWith(items);
}
}
break;
}
}
return(results ?? Enumerable.Empty <T>());
}