USE [VEPROMS]
GO
/****** Object:  UserDefinedFunction [dbo].[vefn_FixSearchString]    Script Date: 03/11/2009 09:54:23 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

/*
select ID,ss,.dbo.vefn_FixSearchString(ss)
from (
select 1 ID,'*' ss union
select 2 ID,'50%' ss union
select 3 ID,'IF*' ss union
select 4 ID,'*then:' ss union
select 5 ID,'530`F' ss union
select 6 ID,'check' ss union
select 7 ID,'RCP*Cooling' ss union
select 8 ID,'14%[34%]' ss union
select 9 ID,'\*' ss union
select 10 ID,'\?' ss union
select 11 ID,'_' ss union
select 12 ID,'[' ss union
select 13 ID,']' ss union
select 14 ID,'%' ss union
select 15 ID,'_' ss union
select 16 ID,'-' ss 
) tt order by ID
*/
ALTER FUNCTION [dbo].[vefn_FixSearchString](@SearchString nvarchar(MAX))
RETURNS nvarchar(MAX)
AS
BEGIN
  -- This code adds % at the beginning and end if the beginning and end
  -- of the search string if it does not have % at the beginning or end
  Set @SearchString = replace(@SearchString,'[','[[]')
  Set @SearchString = replace(@SearchString,'_','[_]')
  Set @SearchString = replace(@SearchString,'%','[%]')
  Set @SearchString = replace(@SearchString,'*','%')
  Set @SearchString = replace(@SearchString,'?','_')
  Set @SearchString = replace(@SearchString,'\%','*')
  Set @SearchString = replace(@SearchString,'\_','?')
  Set @SearchString = replace(@SearchString,'-','[-'+nchar(8209)+']')
  IF(@SearchString like '[%]%') RETURN @SearchString
  IF(@SearchString like '%[%]') RETURN @SearchString
RETURN '%' + @SearchString + '%'
END