Re: comparing two texts

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so,what what should i conclude .it is not possible to compare two texts and 
hight the difference at this moment.
thanks.
Yours ,
Jenny

 On 6/19/05, Robert Cummings <robert@xxxxxxxxxxxxx> wrote: 
> 
> On Sun, 2005-06-19 at 12:33, M. Sokolewicz wrote:
> > Robert Cummings wrote:
> > > On Sun, 2005-06-19 at 09:22, M. Sokolewicz wrote:
> > >
> > >>jenny mathew wrote:
> > >>
> > >>>>Untested, very crude:
> > >>>>
> > >>>><?php
> > >>>>$maxlen = max(strlen($text1), strlen($text2));
> > >>>>for ($i = 0; $i < $maxlen; $i++){
> > >>>>if (@$text1[$i] == @$text2[$i]) echo @$text1[$i];
> > >>>>else @echo "<font color=red>$text1[$i]|$text2[$i]</font>";
> > >>>>}
> > >>>>?>
> > >>>
> > >>> donot you think you program will just bring the server to its foot 
> ,if the
> > >>>text message encountered is very large of order of 40 KB or
> > >>>larger.is <http://larger.is><http://larger.is>there any other 
> efficient method.
> > >>>
> > >>
> > >>40KB isn't large... now, when you're talking about hundreds of MBs of
> > >>text, then it gets large :) 40KB, with that method, is nothing...
> > >
> > >
> > > It's a bit of a dirty hack though. If I compare a 2 character text
> > > against a 40k text, the error handler will be invoked (39998 * 3) 
> times
> > > if $text1 is the 2 byte string. That's extremely inefficient. I don't
> > > think I've ever seen error suppression abused so badly to prevent
> > > writing an extra line or 2 using isset().
> > >
> > > Cheers,
> > > Rob.
> > I agree with what you said fully; however, even though that's the case,
> > and it indeed could be written a lot faster and cleaner, it would not
> > pose a problem on most systems. That was the point I tried to make ;)
> 
> Oh absolutely, 40k is tiny :) Just never seen error suppression used for
> such mundane processing. Now if we up it to 2 chars and 5 megs :) With a
> custom user space error handler in the background... ugh.
> 
> Cheers,
> Rob.
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