/// <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); } }