/// <summary>
/// Determines whether the parse tree is wrapped in parenthesis.
/// </summary>
/// <param name="parseTree">The parse tree.</param>
/// <returns></returns>
private bool IsWrappedInParenthesis(IParseTree parseTree)
{
var lMostToken = parseTree.LeftMostToken();
var rMostToken = parseTree.RightMostToken();
return
(lMostToken != null && lMostToken.Type == TSQLParser.LPAREN &&
rMostToken != null && rMostToken.Type == TSQLParser.RPAREN);
}
/// <summary>
/// Wraps the parse tree in parenthesis.
/// </summary>
/// <param name="parseTree">The parse tree.</param>
private void WrapInParenthesis(IParseTree parseTree)
{
var lMostToken = parseTree.LeftMostToken();
var rMostToken = parseTree.RightMostToken();
if (lMostToken != null && lMostToken.Type == TSQLParser.LPAREN &&
rMostToken != null && rMostToken.Type == TSQLParser.RPAREN)
{
// wrapped
}
else
{
InsertBefore(
parseTree, "(", false);
InsertAfter(
parseTree, ")", false);
}
}
