OpenEuphoria

Re: Don: Compare Directories and Files

• Posted by don cole <doncole at pacbell.n?t> Jul 09, 2007
• 634 views

Alan Oxley wrote:
> 
> Hi Don,
> Maybe this method will be faster:
> 1. Sort both listings, seperately
> 2. Have a routine that steps through both lists, comparing.
>    a) Grab one record each from list1 and list2
>    b) if two records are equal, go back to (a).
>    c) If the record in list1 is greater than the record in list2, then 
>       the record in list2 is missing from list1; assume that the list1
>       record is a new one. Write it, get another record from list2, goto (a)
>    d) Same as (c) but transpose the 2 lists  
> 
> I have an example of this in the archive, it speeds through megabytes of data
> in less than a second, if the data is in cache. See "difflist" by me.
> 
> Cheers
> Alan

Hello again Alan,

I forgot to mention you have two difflist files in the Archives, which one
  should I download?

Don Cole