>- see footer for list info -<
Here you go:
<cffunction name="ListRight" returntype="String" output="false">
<cfargument name="List" type="String"/>
<cfargument name="Limit" type="Numeric"/>
<cfargument name="Delimiter" type="String" default=","/>
<cfset var Result = -1/>
<cfif ListLen(Arguments.List,Arguments.Delimiter) LTE Arguments.Limit>
<cfset Result = Arguments.List/>
<cfelse>
<cfset Result = REReplace(Arguments.List
,'^.*((#Arguments.Delimiter#[^#Arguments.Delimiter#]*){#Arguments.Limit#})$','\1')/>
<cfset Result = REReplace(Result,'^#Arguments.Delimiter#','')/>
<!--- Removes preceeding delimiter --->
</cfif>
<cfreturn Result/>
</cffunction>
<cfdump var="#ListRight('1,2,3,4,5,6,7,8,9,10',3)#"/>
On 10/3/07, Chris Wharton <[EMAIL PROTECTED]> wrote:
>
> >- see footer for list info -<
> Hi,
>
>
>
> I have a list with a number of elements, for example I might have 10
> elements in my list (filled with numbers 1 to 10). What I'd like to do
> is get the last 3 elements from my list, maybe I'd like to get the first
> 3 or the last 5, etc.
>
>
>
> Ideally I'd do the following to get the last 3 elements in my list:
>
>
>
> myList = "1,2,3,4,5,6,7,8,9,10";
>
> Right(myList, 3);
>
>
>
> This doesn't work as ColdFusion treats a List as a String, so the above
> will only return the last 3 characters in my list (",10").
>
>
>
> I could do the following to get what I need:
>
>
>
> <cfset myList = "1,2,3,4,5,6,7,8,9,10">
>
> <cfset myNewList = "">
>
>
>
> <cfloop from="0" to="2" index="idx">
>
> <cfset myNewList = ListAppend(myNewList, ListGetAt(myList,
> ListLen(myList) - idx))>
>
> </cfloop>
>
>
>
> But I see this looping and having to work out the correct from/to values
> a bit messy, there must be an even simpler way, anybody have any tips
> for me?
>
>
>
> Thanks,
>
> Chris W
>
> _______________________________________________
>
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>
--
\ \
Peter Boughton
blog.bpsite.net
/ /
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