private void parseHavingClause(Query query, String havingClause)
{
// only parse "AND" delimitors, since "OR" will be taken care of as
// compound filter items at 2nd level parsing
QueryPartParser clauseParser = new QueryPartParser(new HavingItemParser(query), havingClause, " AND ");
clauseParser.parse();
}
} // constructor
public void parse()
{
if (_clause.IsEmpty())
{
return;
}
int parenthesisCount = 0;
int offset = 0;
bool singleOuterParenthesis = _clause[0] == '(' && _clause[_clause.Length - 1] == ')';
String previousDelim = null;
DelimOccurrence nextDelimOccurrence = getNextDelim(0);
if (nextDelimOccurrence != null)
{
for (int i = 0; i < _clause.Length; i++)
{
char c = _clause[i];
if (c == '(')
{
parenthesisCount++;
}
else if (c == ')')
{
parenthesisCount--;
if (singleOuterParenthesis && parenthesisCount == 0 && i != _clause.Length - 1)
{
singleOuterParenthesis = false;
}
}
if (i == nextDelimOccurrence.index)
{
if (parenthesisCount == 0)
{
// token bounds has been identified
String itemToken = _clause.Substring(offset, i);
parseItem(previousDelim, itemToken);
offset = i + nextDelimOccurrence.delim.Length;
previousDelim = nextDelimOccurrence.delim;
}
nextDelimOccurrence = getNextDelim(nextDelimOccurrence.index + 1);
if (nextDelimOccurrence == null)
{
break;
}
}
}
}
if (singleOuterParenthesis)
{
String newClause = _clause.Substring(1, _clause.Length - 1);
// re-run based on new clause
QueryPartParser newParser = new QueryPartParser(_processor, newClause, _ItemDelims);
newParser.parse();
return;
}
// last token will occur outside loop
if (offset != _clause.Length)
{
String token = _clause.Substring(offset);
parseItem(previousDelim, token);
}
}
private void parseOrderByClause(Query query, String orderByClause)
{
QueryPartParser clauseParser = new QueryPartParser(new OrderByItemParser(query), orderByClause, ",");
clauseParser.parse();
}
private void parseGroupByClause(Query query, String groupByClause)
{
QueryPartParser clauseParser = new QueryPartParser(new GroupByItemParser(query), groupByClause, ",");
clauseParser.parse();
}
private void parseSelectClause(Query query, String selectClause)
{
QueryPartParser clauseParser = new QueryPartParser(new SelectItemParser(query, false), selectClause, ",");
clauseParser.parse();
}
} // parse()
private void parseFromClause(Query query, String fromClause)
{
QueryPartParser clauseParser = new QueryPartParser(new FromItemParser(_dataContext, query), fromClause, ",");
clauseParser.parse();
}
