I like it.  Go for it.

On Wed, Nov 14, 2018 at 1:42 AM Shalitha Suranga <shalithasuranga@gmail.com> wrote:
Hi..

How about adding these vars.What do you think? 

$ST{arg, start [,end] } - Sub string of a string. will be useful when dealing with fixed length things like getting fixed extension etc

$LN{arg, [,delimiter]} -  Character count of a string or if delimiter is given it splits and gives the element count instead. 

$PE{arg, regex, groupid } - Pattern Extractor.. this is useful when we need to match and get some matched regex groups. 
Eg: localhost:8080 get port value..
$PM is logical $PR will manipulate and $PE will return matched groups

These things came to mind when experimenting with svl module. Perhaps you may find some vars here are not very much useful in general scenario

Thanks



--
Regards,
Shalitha Suranga