sring splitting

[xyz]

I have a string
16:23:18.659343 131.188.37.230.22 131.188.37.59.1398 tcp 168

for example lets say for the above string
16:23:18.659343 -- time
131.188.37.230 -- srcaddress
22 --srcport
131.188.37.59 --destaddress
1398 --destport
tcp --protocol
168 --size
i need to split the string such that i need to get all these
parameters....
the field widths are not fixed..i have some times four/three digits
srcport ..so i cant do it with substr function...i need this in c++
i am not getting an idea how to split it..
thank you for any help

 

[James Kanze]

I have a string
16:23:18.659343 131.188.37.230.22 131.188.37.59.1398 tcp 168

for example lets say for the above string
16:23:18.659343 -- time
131.188.37.230 -- srcaddress
22 --srcport
131.188.37.59 --destaddress
1398 --destport
tcp --protocol
168 --size
i need to split the string such that i need to get all these
parameters....
the field widths are not fixed..i have some times four/three digits
srcport ..so i cant do it with substr function...i need this in c++
i am not getting an idea how to split it..

In this particular case, where the fields are all separated by
white space, and can contain no white space, you can do it
simply by using the string to initialize an std::istringstream,
and reading each field using >>. A more general (and likely
faster) solution would be to use something like my FieldArray
(at my site: kanze.james.neuf.fr); you assign a string to the
class, and it then looks like an std::vector with a field in
each entry. (Depending on the "splitter" you use, the fields
can be split according to different criteria.) Since the number
of fields is fixed, it wouldn't be too difficult to use
boost::regex either.

 

[Noah Roberts]

I have a string
16:23:18.659343 131.188.37.230.22 131.188.37.59.1398 tcp 168

You can do it with << or boost has a splitter algorithm.