How to remove leading and trailing spaces from a string?

[Sadhu Nadesan]

Howzit,

I needed to do that and was about to (once again) reinvent the wheel, 
but decided to use the Rev search engine instead, and came across this 
handy regular expression function from Ken Ray, posted circa 2006.  
Works great!  Thank you, Mr. Ray.

Sadhu

function trimWS pText
-- Remove all leading and trailing whitespace characters.
-- I.E., space, tab, carriage return, line feed, form feed.

  return replaceText(pText,"(^\s+)|(\s+$)",empty)

end trimWS