private CodeStruct Text_Join(Block block)
{
ItemListMutator mutator = block.Mutator as ItemListMutator;
if (mutator == null)
{
throw new Exception("Block \"text_join\" must have a mutater \"text_join_mutator\"");
}
// Create a string made up of any number of elements of any type.
if (mutator.ItemCount == 0)
{
return(new CodeStruct("\'\'", Lua.ORDER_ATOMIC));
}
else if (mutator.ItemCount == 1)
{
string element = Lua.Generator.ValueToCode(block, "ADD0", Lua.ORDER_NONE);
if (string.IsNullOrEmpty(element))
{
element = "\'\'";
}
string code = "tostring(" + element + ")";
return(new CodeStruct(code, Lua.ORDER_HIGH));
}
else if (mutator.ItemCount == 2)
{
string element0 = Lua.Generator.ValueToCode(block, "ADD0", Lua.ORDER_CONCATENATION);
if (string.IsNullOrEmpty(element0))
{
element0 = "\'\'";
}
string element1 = Lua.Generator.ValueToCode(block, "ADD1", Lua.ORDER_CONCATENATION);
if (string.IsNullOrEmpty(element1))
{
element1 = "\'\'";
}
string code = element0 + " .. " + element1;
return(new CodeStruct(code, Lua.ORDER_CONCATENATION));
}
else
{
string[] elements = new string[mutator.ItemCount];
for (int i = 0; i < mutator.ItemCount; i++)
{
elements[i] = Lua.Generator.ValueToCode(block, "ADD" + i, Lua.ORDER_NONE);
if (string.IsNullOrEmpty(elements[i]))
{
elements[i] = "\'\'";
}
}
string code = "table.concat({" + string.Join(", ", elements) + "})";
return(new CodeStruct(code, Lua.ORDER_HIGH));
}
}
protected override DataStruct Execute(Block block)
{
ItemListMutator mutator = block.Mutator as ItemListMutator;
if (mutator == null)
{
throw new Exception("Block \"lists_create_with\" must have a mutator \"lists_create_with_item_mutator\"");
}
ArrayList resultList = new ArrayList();
for (int i = 0; i < mutator.ItemCount; i++)
{
resultList.Add(CSharp.Interpreter.ValueReturn(block, "ADD" + i, new DataStruct(0)));
}
return(new DataStruct(resultList));
}
private CodeStruct List_CreateWith(Block block)
{
ItemListMutator mutator = block.Mutator as ItemListMutator;
if (mutator == null)
{
throw new Exception("Block \"lists_create_with\" must have a mutator \"lists_create_with_item_mutator\"");
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < mutator.ItemCount; i++)
{
sb.Append(Lua.Generator.ValueToCode(block, "ADD" + i, Lua.ORDER_NONE, "None"));
if (i < mutator.ItemCount - 1)
{
sb.Append(", ");
}
}
string code = "{" + sb.ToString() + "}";
return(new CodeStruct(code, Lua.ORDER_ATOMIC));
}
protected override IEnumerator Execute(Block block)
{
ItemListMutator mutator = block.Mutator as ItemListMutator;
if (mutator == null)
{
throw new Exception("Block \"text_join\" must have a mutater \"text_join_mutator\"");
}
string result = String.Empty;
if (mutator.ItemCount > 0)
{
string[] elements = new string[mutator.ItemCount];
for (int i = 0; i < mutator.ItemCount; i++)
{
CustomEnumerator ctor = CSharp.Interpreter.ValueReturn(block, "ADD" + i, new DataStruct(""));
yield return(ctor);
elements[i] = ctor.Data.StringValue;
}
result = string.Join("", elements);
}
ReturnData(new DataStruct(result));
}
