Sort IP List
bobsneidar at iotecdigital.com
Fri Jun 29 12:03:20 EDT 2018
First, your function returns a single line of numbers. With 30,000 lines of input, yours takes 9 ticks, mine 8.
> On Jun 29, 2018, at 08:37 , Mike Bonner via use-livecode <use-livecode at lists.runrev.com> wrote:
> I don't know what speed differences there might be, but another option is
> something like this..
> function ipfunc pIp
> set the itemdel to "."
> set the numberformat to "###" -- force length of each chunk to 3
> -- append the numbers together sans "." with padded 0's using numberformat
> repeat for each item tItem in pIp
> put tItem +0 after tIp -- do the add to force the numberformat to
> end repeat
> return tIp
> end ipfunc
> And then use it like so..
> sort lines of myIpList ascending numeric by ipfunc(each)
> On Fri, Jun 29, 2018 at 9:14 AM Bob Sneidar via use-livecode <
> use-livecode at lists.runrev.com> wrote:
>> Hi all.
>> I somehow got on to how to sort IP addresses, seeing they are not real
>> numbers, and read in the dictionary that the sort command is a "stable
>> sort". This occured to me:
>> function sortIPList pIPList
>> set the itemdelimiter to "."
>> sort lines of pIPList numeric by item 4 of each
>> sort lines of pIPList numeric by item 3 of each
>> sort lines of pIPList numeric by item 2 of each
>> sort lines of pIPList numeric by item 1 of each
>> return pIPList
>> end sortIPList
>> Bob S
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