OpenEuphoria

Re: [If/then and sequences...]

• Posted by Derek Parnell <derekp at solace.com.au> Aug 31, 2000
• 435 views

Thanks Hawke',
here was my earlier attempt at doing a similar find_all() function. I
decided to always return a sequence with an empty sequence signifing that no
occurances were found. I did this because I imagined that typical use would
be to receive its result then loop though the entries...

lRC = Finds(A, B)
for i = 1 to length(lRC) do
  ...
end for



-------------------------------------
global function Finds(object pSubject, object pContainer)
-------------------------------------
-- Returns a sequence containing a list of subscripts, one
-- for each occurrance of pSubject in pContainer

sequence lResult
integer lSub, lStart, lEnd

   lResult = {}

   if sequence(pContainer)
   then
      lStart = 1
      lEnd = length(pContainer)
      while lStart <= lEnd do
         lSub = find(pSubject, pContainer[lStart .. lEnd])

         if lSub != 0
         then
            lStart  += lSub
            lResult &= lStart - 1
         else
            exit
         end if
      end while
   -- else an object can never be contained in an atom.
   end if

   return lResult

end function

-----
cheers,
Derek Parnell