/// <summary>
/// Initializes a new instance of the <see cref="Expression"/> class
/// by parsing specified expression string.
/// </summary>
/// <param name="expression">Expression to parse.</param>
public static IExpression Parse(string expression)
{
if (StringUtils.HasText(expression))
{
ExpressionLexer lexer = new ExpressionLexer(new StringReader(expression));
ExpressionParser parser = new SpringExpressionParser(lexer);
try
{
parser.expr();
}
catch (TokenStreamRecognitionException ex)
{
throw new SyntaxErrorException(ex.recog.Message, ex.recog.getLine(), ex.recog.getColumn(), expression);
}
return((IExpression)parser.getAST());
}
else
{
return(new Expression());
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Expression"/> class
/// by parsing specified expression string.
/// </summary>
/// <param name="expression">Expression to parse.</param>
public static IExpression Parse( string expression )
{
if (StringUtils.HasText( expression ))
{
ExpressionLexer lexer = new ExpressionLexer( new StringReader( expression ) );
ExpressionParser parser = new SpringExpressionParser( lexer );
try
{
parser.expr();
}
catch (TokenStreamRecognitionException ex)
{
throw new SyntaxErrorException( ex.recog.Message, ex.recog.getLine(), ex.recog.getColumn(), expression );
}
return (IExpression)parser.getAST();
}
else
{
return new Expression();
}
}
