void insert(ILuaTable table, ILuaValue pos, ILuaValue value = null)
{
CheckNotNull("table.insert", table);
CheckNotNull("table.insert", pos);
double i;
double len = table.Length().AsDouble() ?? 0;
if (value == null)
{
value = pos;
i = len + 1;
}
else
{
i = pos.AsDouble() ?? 0;
}
if (i > len + 1 || i < 1 || i % 1 != 0)
{
throw new ArgumentException(
"Position given to function 'table.insert' is outside valid range.");
}
for (double d = len; d >= i; d--)
{
var temp = table.GetItemRaw(E.Runtime.CreateValue(d));
table.SetItemRaw(E.Runtime.CreateValue(d + 1), temp);
}
table.SetItemRaw(pos, value);
}
string concat(ILuaTable table, string sep = null, int i = 1, int j = -1)
{
CheckNotNull("table.concat", table);
int len = (int)(table.Length().AsDouble() ?? 0);
if (i >= len)
{
return("");
}
i = normalizeIndex_(len, i);
j = normalizeIndex_(len, j);
StringBuilder str = new StringBuilder();
for (; i <= j; i++)
{
ILuaValue temp = table.GetItemRaw(E.Runtime.CreateValue(i));
if (temp.ValueType != LuaValueType.String && temp.ValueType != LuaValueType.Number)
{
throw new ArgumentException(
"Invalid '" + temp.ValueType + "' value for function 'table.concat'.");
}
if (str.Length > 0)
{
str.Append(sep);
}
str.Append(temp);
}
return(str.ToString());
}
IEnumerable <ILuaValue> unpack(ILuaTable table, int i = 1, int?jOrNull = null)
{
CheckNotNull("table.unpack", table);
int len = (int)(table.Length().AsDouble() ?? 0);
int j = jOrNull ?? len;
for (; i <= j; i++)
{
yield return(table.GetItemRaw(E.Runtime.CreateValue(i)));
}
}
ILuaValue remove(ILuaTable table, int?pos = null)
{
CheckNotNull("table.remove", table);
double len = table.Length().AsDouble() ?? 0;
pos = pos ?? (int)len;
if (pos > len + 1 || pos < 1)
{
throw new ArgumentException(
"Position given to function 'table.remove' is outside valid range.");
}
ILuaValue prev = LuaNil.Nil;
for (double d = len; d >= pos; d--)
{
ILuaValue ind = E.Runtime.CreateValue(d);
ILuaValue temp = table.GetItemRaw(ind);
table.SetItemRaw(ind, prev);
prev = temp;
}
return(prev);
}