SSRS Report Returning Double Quote string from a Single Quote String

Question

Hi, I'm getting weird thing in resultset from SSRS report when executed. When I pass parameter to a report, which passes String that has single quote value to a split function , it returns rows with double quote. 
For example  following string:
'N gage, Wash 'n Curl,Murray's, Don't-B-Bald
Returns: 
''N gage, Wash ''n Curl,Murray''s, Don''t-B-Bald
through SSRS report.
Here is the split function Im using in a report.
CREATE Function [dbo].[fnSplit] (
@List varchar(8000), 
@Delimiter char(1)
Returns @Temp1 Table (
ItemId int Identity(1, 1) NOT NULL PRIMARY KEY , 
Item varchar(8000) NULL 
As 
Begin 
Declare @item varchar(4000), 
@iPos int 
Set @Delimiter = ISNULL(@Delimiter, ';' ) 
Set @List = RTrim(LTrim(@List)) 
-- check for final delimiter 
If Right( @List, 1 ) <> @Delimiter -- append final delimiter 
Select @List = @List + @Delimiter -- get position of first element 
Select @iPos = Charindex( @Delimiter, @List, 1 ) 
While @iPos > 0 
Begin 
-- get item 
Select @item = LTrim( RTrim( Substring( @List, 1, @iPos -1 ) ) ) 
If @@ERROR <> 0 Break -- remove item form list 
Select @List = Substring( @List, @iPos + 1, Len(@List) - @iPos + 1 ) 
If @@ERROR <> 0 Break -- insert item 
Insert @Temp1 Values( @item ) If @@ERROR <> 0 Break 
-- get position pf next item 
Select @iPos = Charindex( @Delimiter, @List, 1 ) 
If @@ERROR <> 0 Break 
End 
Return 
End
FYI: I'm getting @List value from a table and passing it as a string to split function. 
Any help would be appreciated!
ZK

Answer 1

Another user from TSQL forum posted this code which is returning the same resultset but when I execute both codes in SQL server it works and return single quote as expected.
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/8d5c96f5-c498-4f43-b2fb-284b0e83b205/passing-string-which-has-single-quote-rowvalue-to-a-function-returns-double-quoate?forum=transactsql
CREATE FUNCTION dbo.splitter(@string VARCHAR(MAX), @delim CHAR(1))
RETURNS @result TABLE (id INT IDENTITY, value VARCHAR(MAX))
AS
BEGIN
WHILE CHARINDEX(@delim,@string) > 0
BEGIN
INSERT INTO @result (value) VALUES (LEFT(@string,CHARINDEX(@delim,@string)-1))
SET @string = RIGHT(@string,LEN(@string)-CHARINDEX(@delim,@string))
END
INSERT INTO @result (value) VALUES (@string)
RETURN
END
GO
ZK