OpenEuphoria

Re: find/match not working

• Posted by "Kat" <gertie at visionsix.com> Aug 19, 2004
• 481 views

On 18 Aug 2004, at 18:05, Derek Parnell wrote:

> 
> 
> posted by: Derek Parnell <ddparnell at bigpond.com>
> 
> Kat wrote:
> 
> > found = 0
> > for loop = 1 to length(urllist) do
> >   if match(junk,urllist[loop]) then
> >      found = 1
> >      exit
> >    end if
> >  end for
> >  if not found then
> >    urllist = urllist & {junk}
> >   end if
> 
> When doing this sort of thing, I usually do this ...
> 
>  urltemp = upper(urllist)
>  junk = trim(junk)
>  found = find(upper(junk), urltemp)
>  if not found then
>     urllist = append(urllist, junk)
>  end if
> 
> In other words, trim both data and do an case-insensitive search.
> 
> The find() function looks for a single element that exactly
> matches the subject argument.
> 
> The match() function looks for a set of adjacent elements that
> exactly matches all the elements in the subject argument.

According to the files i printed out, the items were the same. But find() didn't
find them. 

Kat

> To use match() in the way you have above might work better as ...
> 
>    if match(junk,urllist[loop]) = 1  and 
>       length(junk) = length(urllist[loop]) then
> 
> in other words, ensure that if you get a match it starts
> with the first character and is the same length. But that's
> now equivalent to equal()! So it might be better to do ...
> 
>    if equal(junk,urllist[loop]) then
> 
> but if you are doing that, you may as well use find()
> as it will work faster.
> 
> -- 
> Derek Parnell
> Melbourne, Australia
> 
> 
> 
>