public virtual void ToEPL(TextWriter writer, RowRegexExprNodePrecedenceEnum parentPrecedence)
{
if (Precedence.GetLevel() < parentPrecedence.GetLevel())
{
writer.Write("(");
ToPrecedenceFreeEPL(writer);
writer.Write(")");
}
else
{
ToPrecedenceFreeEPL(writer);
}
}
/// <summary>
/// Level.
/// </summary>
/// <returns>level</returns>
public static int GetLevel(this RowRegexExprNodePrecedenceEnum value)
{
switch (value)
{
case RowRegexExprNodePrecedenceEnum.UNARY:
return(4);
case RowRegexExprNodePrecedenceEnum.GROUPING:
return(3);
case RowRegexExprNodePrecedenceEnum.CONCATENATION:
return(2);
case RowRegexExprNodePrecedenceEnum.ALTERNATION:
return(1);
case RowRegexExprNodePrecedenceEnum.MINIMUM:
return(int.MinValue);
}
throw new ArgumentException();
}