README.epoc - Perl for EPOC
Perl 5 README file for the EPOC Release 5 operating system.
EPOC is an OS for palmtops and mobile phones. For more informations look at: http://www.symbian.com/
This is a port of perl to the epocemx SDK by Eberhard Mattes, which itselfs uses the SDK by
symbian. Essentially epocemx it is a POSIX look alike environment for the EPOC OS. For more
informations look at: http://www.windhager.de/~mattes/epocemx/
perl and epocemx runs on Epoc Release 5 machines: Psion 5mx, 5mx Pro, Psion Revo, Psion
Netbook and on the Ericson M128. It may run on Epoc Release 3 Hardware (Series 5 classic),
too. For more information about this hardware please refer to http://www.psion.com/
Vendors which like to have support for their devices are free to send me a sample.
You can download a ready-to-install version from http://www.science-computing.de/o.flebbe/perl/
You will need at least ~6MB free space in order to install and run perl.
Please install the emxusr.sis package from http://www.windhager.de/~mattes/epocemx/ first.
Install perl.sis on the EPOC machine. If you do not know how to do that, consult your
Perl itself and its standard library is using 4 MB disk space. Unicode support and some
other modules are left out. (For details, please look into epoc/createpkg.pl). If you like to
use these modules, you are free to copy them from a current perl release.
Please use the epocemx shell to start perl. perl integrates with the conventions of epocemx.
A suitable text editor can be downloaded from symbian http://www.symbian.com/developer/downloads/files/editor.zip
The built-in function EPOC::getcwd returns the current directory.
Features are left out, because of restrictions of the POSIX support in EPOC:
- socket IO is only implemented poorly. You can only use sysread and syswrite on them. The
commands read, write, print, <> do not work for sockets. This may change iff epocemx
- kill, alarm and signals. Do not try to use them. This may be impossible to implement on
- select is missing.
- binmode does not exist. (No CR LF to LF translation for text files)
- EPOC does not handle the notion of current drive and current directory very well (i.e.
not at all, but it tries hard to emulate one) See PATH.
- Heap is limited to 4MB.
- Dynamic loading is not implemented.
Sorry, this is far too short.
I'm offering this port "as is". You can ask me questions, but I can't guarantee
I'll be able to answer them. Since the port to epocemx is quite new, please check the web for
Very special thanks to Eberhard Mattes for epocemx.
Olaf Flebbe <firstname.lastname@example.org> http://www.science-computing.de/o.flebbe/perl/