YuriyGuts.RegexBuilder.RegexQuantifier.ToRegexPattern C# (CSharp) Method

        public virtual string ToRegexPattern()
        {
            string result;

            if (MinOccurrenceCount == 0 && MaxOccurrenceCount == 1)
            {
                result = "?";
            }
            else if (MinOccurrenceCount == 0 && MaxOccurrenceCount == null)
            {
                result = "*";
            }
            else if (MinOccurrenceCount == 1 && MaxOccurrenceCount == null)
            {
                result = "+";
            }
            else if (MinOccurrenceCount == MaxOccurrenceCount)
            {
                result = string.Format(CultureInfo.InvariantCulture, "{{{0}}}", MinOccurrenceCount);
            }
            else if (MaxOccurrenceCount == null)
            {
                result = string.Format(CultureInfo.InvariantCulture, "{{{0},}}", MinOccurrenceCount);
            }
            else
            {
                result = string.Format(CultureInfo.InvariantCulture, "{{{0},{1}}}", MinOccurrenceCount, MaxOccurrenceCount);
            }

            if (IsLazy)
            {
                result += "?";
            }

            return result;
        }