Trim Function

 

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This function will allow the user to trim consecutive occurances of any character or string of characters from a string. This is intended to be placed in a moviescript. It uses one function call, Trim(), with many combinations: Trim(someString, "a") -- trims from the left and right of the string Trim(someString, "a", #left) -- trims from the left of the string Trim(someString, "a", #right) -- trims from the right of the string Trim(someString, "this", #right) -- trims a string starting from the right of someString. Can use with #left as well.

-- ©2005 Josh Chunick -- www.chunick.com/director.htm on Trim ()      Case the paramCount of     1, 0: -- incorrect number of parameters              alert("Two parameters are required." & RETURN & "theString - a string" & RETURN & "theChar - a character or string")       exit            2: -- trim function which trims both the beginning and end of the string              theString = Trim(param(1), param(2), #left)       theString = Trim(theString, param(2), #right)            3: -- trims the left or right of the string depending on value of param(3)       theString = param(1)       theChar = param(2)       theEnd = param(3)              if not(stringP(theString)) then         alert("Please enter a string for the first parameter.")         exit       end if              if not(stringP(theChar)) then         alert("Please enter a character or string for the second parameter.")         exit       end if              theCount = theChar.char.count              Case theEnd of         #left:                      if theString.char[1..theCount] = theChar then             delete char 1 to theCount of theString             theString = Trim(theString, theChar, theEnd)           end if                    #right:                      theLast = theString.char.count           if theString.char[theLast - (theCount - 1)..theLast] = theChar then             delete theString.char[theLast - (theCount - 1)..theLast]             theString = Trim(theString, theChar, theEnd)             end if                    otherwise                      alert(theEnd && "is not a valid value for the third parameter." & RETURN & "The two possible values are #left or #right.")           exit                  end Case          end Case      return theString    end