void FlushAll()
{
FlushForUnfinishedGroup();
groupState = GroupingState.None;
phaseState = PhaseState.None;
field = null;
}
void BoundaryValues()
{
if (groupState == GroupingState.Finished && phase == string.Empty)
{
groupState = GroupingState.None;
phase = settings.GroupModificator.ToString() + settings.GroupModificator;
}
if (field != null && phase == string.Empty)
{
phase = field + settings.SpecificFieldModificator;
field = null;
}
if (phase != string.Empty)
{
return;
}
switch (phaseState)
{
case PhaseState.Include:
phase += settings.IncludeModificator;
break;
case PhaseState.Exclude:
phase += settings.ExcludeModificator;
break;
}
phaseState = PhaseState.None;
}
SearchStringParseState Add(char c)
{
if (c == settings.PhaseSeparator)
{
if (IsPhaseEnded())
{
hasSpace = true;
return(SearchStringParseState.Completed);
}
}
if (phase == string.Empty && groupState == GroupingState.None)
{
if (phaseState == PhaseState.None && field == null)
{
if (c == settings.IncludeModificator)
{
phaseState = PhaseState.Include;
return(GetState());
}
if (c == settings.ExcludeModificator)
{
phaseState = PhaseState.Exclude;
return(GetState());
}
}
if (c == settings.GroupModificator && groupState == GroupingState.None)
{
groupState = GroupingState.Started;
state.SaveIndex();
return(GetState());
}
}
if (c == settings.GroupModificator && groupState == GroupingState.Started)
{
if (!state.NextChar.HasValue || state.NextChar.Value == settings.PhaseSeparator)
{
groupState = GroupingState.Finished;
return(SearchStringParseState.Completed);
}
}
if (c == settings.SpecificFieldModificator && field == null && phase != string.Empty && groupState == GroupingState.None)
{
field = phase;
phase = string.Empty;
return(GetState());
}
phase += c;
return(GetState());
}
void FlushForUnfinishedGroup()
{
phase = string.Empty;
hasSpace = false;
groupState = GroupingState.Invalid;
}