/// <summary>
/// Gets an enumerator
/// </summary>
public IEnumerator <Hit> GetEnumerator()
{
int curPos = startPosition;
Hit find;
while (curPos < text.Length)
{
find = GetMatch(curPos);
if (find.Start > -1)
{
bool isMatch = true;
foreach (IMatchFilter filter in matchFilters)
{
isMatch &= filter.IsMatch(searchQuery.QueryText, text, find);
}
curPos = find.Start + 1;
if (!isMatch)
{
continue; //try again
}
else
{
Hit translatedHit = find;
for (int h = bodyIgnoreHandlers.Count - 1; h >= 0; h--)//we want to translate back in the opposite order than the text was translated in.
{
translatedHit = bodyIgnoreHandlers[h].TranslateHit(translatedHit);
}
yield return(translatedHit);
}
}
else
{
break;
}
}
}
public bool IsMatch(string searchQuery, string text, Hit hit)
{
bool startBoundaryOK = _part == Part.Suffix || (hit.Start == 0 || !Char.IsLetterOrDigit(text[hit.Start - 1]));
bool endBoundaryOK = _part == Part.Prefix || ((hit.Start + searchQuery.Length >= text.Length) || !Char.IsLetterOrDigit(text[hit.Start + hit.Length]));
return startBoundaryOK && endBoundaryOK;
}
/// <summary>
///
/// </summary>
/// <param name="hit"></param>
/// <returns></returns>
public Hit TranslateHit(Hit hit)
{
int translatedStart = TranslateIndex(hit.Start, true);
int translatedEnd = TranslateIndex(hit.Start + hit.Length, false);
if (translatedEnd < translatedStart) translatedEnd = translatedStart;//this can happen when the search string is empty and theres a whitespace that was ignored
return new Hit(translatedStart, translatedEnd - translatedStart);
}
