stream io & ObjC
stream io & ObjC
- Subject: stream io & ObjC
- From: Candide Kemmler <email@hidden>
- Date: Fri, 29 Jun 2001 20:56:34 +0200
Hi !
Sorry for asking, but I'm a beginner with any language that's not Java
(means I don't even know C!).
I've turned to ObjC for my current project because I felt that using
Java would hamper performance, and I also got strange errors related to
the java bridge that didn't make me feel comfortable with the java-cocoa
option.
So now, I'm left with having to learn not only cocoa, but Objective-C
also. I fear that I might have to learn a bit of C too now.
Indeed, I searched for an equivalent to java's java.io package that
allows to parse a stream and read its content according to the type of
data you expect. For example, if you expect to receive a polygon, you
could first read the number of coordinates with readInt (), and then
-let ncoords be the number of coordinates in the polygon, iterate
ncoords times to read the x and y coordinates of every vertex of the
polygon using readFloat ().
I didn't find such functionality in the Foundation classes. I downloaded
2 libraries (frameworks) from the Omni Group (namely OWF and
OmniNetworking), but they seem to provide only very basic capabilities
(such as reading lines of text, or an entire array of bytes at once).
I'd really appreciate some information or pointers about using an array
of bytes for such things like making an int out of 4 bytes, or a
float,... as a possible alternative. I'll have to use C for that, won't
I ?
I'll also have to use SOAP at some point, so if someone knows about SOAP
on MacOS X... But then I might be better off using Java for that
particular purpose...
Thanks in advance,
Candide