OpenEuphoria

Re: Newbie question. Difficulty understanding a few things.

• Posted by don cole <doncole at ?acbell?net> May 25, 2008
• 859 views

Dan Moyer wrote:
> 
> don cole wrote:
> > 
> > Rob H. wrote:
> > > 
> > > 
> > > I understand what seek is doing. However. The seek_positions[element]
> > > determines
> > > where seek is currently "looking" because it's incrementing with the for
> > > element
> > > loop.
> > > So why is the [1] necessary?? Not sure if I'm explaining myself
> > > correctly...
> > > In the Reference Manual, seek only takes one argument... I'm wondering
> > > what
> > > the [1] and -1 specifically do.
> > }}}
<eucode>
> > seek_positions = {}
> > for element = 1 to length(string) do
> >      if find(string[element],vowels) then
> >           seek_positions = append(seek_positions,{element, string[element]})
> >           string[element] = ' '     
> >      end if
> > end for
> > </eucode>
{{{

> > 
> > Here we are building a 2 element sequence called seek_positions.
> > 
> > the first element being the element number.
> > 
> > the second element being a string (' ')
> > 
> > in the code 
> > seek_positions[1][1]=1
> > seek_positions[1][2]=' '
> > 
> > seek_postition[2][1]=2
> > seek_positions[2][2]=' '
> > 
> > etc...
> > 
> > so seek_positions[2][1]-1=1
> >    seek_positions[5][1]-3=2
> > 
> > Don Cole
> 
> Hi Don,
> 
> That's not exactly right, I think.
> 
> Yes, seek_positions is a two element array, but the empty space ' '  is
> not being added to seek_positions, but rather is REPLACING a character in
> string:  string[element] = ' '
> 
> seek_positions has an item added each time a vowel is found, and that item
> consists of the position counter ("element") and the vowel itself.
> 
> Dan

yeah! your right I missed that if find there.

Don Cole