///////////////////////////////////////////////////////////////////////////////////////////////
public static ReturnCode Combine(
IList <IList <StringBuilder> > lists, /* in */
ref IList <StringBuilder> list, /* in, out */
ref Result error /* out */
)
{
if (lists == null)
{
error = "invalid list of lists";
return(ReturnCode.Error);
}
if (lists.Count == 0)
{
error = "no lists in list";
return(ReturnCode.Error);
}
IList <StringBuilder> list1 = lists[0];
if (lists.Count > 1)
{
for (int index = 1; index < lists.Count; index++)
{
IList <StringBuilder> list2 = lists[index];
IList <StringBuilder> list3 = null;
if (Combine(
list1, list2, ref list3, ref error) != ReturnCode.Ok)
{
return(ReturnCode.Error);
}
list1 = list3;
}
}
if (list != null)
{
GenericOps <StringBuilder> .AddRange(list, list1);
}
else
{
list = new List <StringBuilder>(list1);
}
return(ReturnCode.Ok);
}
///////////////////////////////////////////////////////////////////////////////////////////////
private static ReturnCode Combine(
IList <StringBuilder> list1, /* in */
IList <StringBuilder> list2, /* in */
ref IList <StringBuilder> list3, /* in, out */
ref Result error /* out */
)
{
if (list1 == null)
{
if (list2 == null)
{
error = "cannot combine, neither list is valid";
return(ReturnCode.Error);
}
if (list3 != null)
{
GenericOps <StringBuilder> .AddRange(list3, list2);
}
else
{
list3 = new List <StringBuilder>(list2);
}
}
else if (list2 == null)
{
if (list3 != null)
{
GenericOps <StringBuilder> .AddRange(list3, list1);
}
else
{
list3 = new List <StringBuilder>(list1);
}
}
else
{
if ((list1.Count > 0) || (list2.Count > 0))
{
if (list3 == null)
{
list3 = new List <StringBuilder>();
}
}
foreach (StringBuilder element1 in list1)
{
foreach (StringBuilder element2 in list2)
{
int capacity = 0;
if (element1 != null)
{
capacity += element1.Length;
}
if (element2 != null)
{
capacity += element2.Length;
}
StringBuilder element3 = StringOps.NewStringBuilder(
capacity);
element3.Append(element1);
element3.Append(element2);
list3.Add(element3);
}
}
}
return(ReturnCode.Ok);
}
