1 If you read this file _as_is_, just ignore the funny characters you
2 see. It is written in the POD format (see pod/perlpod.pod) which is
3 specially designed to be readable as is.
7 README.epoc - Perl for EPOC
11 Perl 5 README file for the EPOC operating system.
15 EPOC is an OS for palmtops and mobile phones. For more informations look at:
16 http://www.symbian.com/
18 This is a port of perl to EPOC. It runs on ER5 machines: Psion 5mx,
19 5mx Pro, Psion Revo and on the Ericson M128. I have no report about
20 the Psion Netbook or the S7. It runs on ER3 Hardware (Series 5
21 classic), too. For more information about this hardware please refer
22 to http://www.psion.com.
24 Vendors which like to have support for their devices are free to send
27 =head1 INSTALLING PERL ON EPOC
29 You can download a ready-to-install version from
30 http://www.science-computing.de/o.flebbe/perl. You may find other
31 versions with some CPAN modules included at this location.
33 You will need at least ~4MB free space in order to install and run
36 Install perl.sis on the EPOC machine. If you do not know how to do
37 that, consult your PsiWin documentation.
39 Perl itself and its standard library is using 2.5 MB disk space.
40 Unicode support and some other modules are left out. (For details,
41 please look into epoc/createpkg.pl). If you like to use these modules,
42 you are free to copy them from a current perl release.
44 =head1 STARTING PERL ON EPOC
46 For ER5 machines, you can get the software Perlstart
47 http://www.science-computing.de/o.flebbe/perl. It contains file
48 recognizers for files with the extension .pl and .pm. With it you can
49 start perl with a double click on the camel icon. Be sure to configure
50 the perl installation drive first. You can even provide a script with
51 a special commandline, if needed.
53 Alternatively you can get ESHELL from symbian:
54 http://developer.epocworld.com/downloads/progs/Eshell.zip
56 Running ESHELL you can enter: perl -de 0 in order to run the perl
57 debugger. If you are leaving perl, you get into the system screen. You
58 have to switch back manually to ESHELL. When perl is running, you will
59 see a task with the name STDOUT in the task list.
61 If you have an ER3 machine (i.e. a PSION 5), you may have to supply the
62 full path to the perl executable C:\system\programs\perl.exe.
64 If you need to set the current directory of perl, please use the
65 command line switch '-x'. See L<perlrun> for details.
67 =head1 STOPPING PERL ON EPOC
69 You can stop a running perl process in the task list by closing the
70 application `STDOUT'. You cannot stop a running perl process if it has
71 not written anything to stdout or stderr! Be very cautious with I/O
72 redirection. You will have to reboot the PDA!
74 =head1 USING PERL ON EPOC
76 =head2 I/O Redirection on Epoc
78 You can redirect the output with the UNIX bourne shell syntax (this is
79 built into perl rather then eshell) For instance the following command
80 line will run the script test.pl with the output redirected to
81 stdout_file, the errors to stderr_file and input from stdin_file.
83 perl test.pl >stdout_file <stdin_file 2>stderr_file
85 Alternatively you can use 2>&1 in order to add the standard error
88 =head2 PATH Names on Epoc
90 ESHELL looks for executables in ?:/System/Programs. The SIS file
91 installs perl in this special folder directory. The default drive and
92 path are the same as folder the executable resides. The EPOC
93 filesystem is case-preserving, not case-sensitive.
95 The EPOC estdlib uses the ?: syntax for establishing a search order:
96 First in C: (RAM), then on D: (CF Card, if present) and last in Z:
97 (ROM). For instance ?:\a.txt searches for C:\a.txt, D:\a.txt (and
100 The perl @INC search path is implemented with '?:'. Your perl
101 executable can live on a different drive than the perl library or even
104 ESHELL paths have to be written with backslashes '\', file arguments
105 to perl with slashes '/'. Remember that I/O redirection is done
106 internally in perl, so please use slashes for redirects.
108 perl.exe C:/test.pl >C:/output.txt
110 =head2 Editors on Epoc
112 A suitable text editor can be downloaded from symbian
113 http://developer.epocworld.com/downloads/progs/Editor.zip
115 =head2 Features of Perl on Epoc
117 The built-in function EPOC::getcwd returns the current directory.
119 =head2 Restrictions of Perl on Epoc
121 Features are left out, because of restrictions of the POSIX support in
128 backquoting, pipes etc.
132 system() does not inherit resources like: file descriptors,
137 signal, kill, alarm. Do not try to use them. This may be
138 impossible to implement on EPOC.
146 binmode does not exist. (No CR LF to LF translation for text files)
150 EPOC does not handle the notion of current drive and current
151 directory very well (i.e. not at all, but it tries hard to emulate
156 Heap is limited to 4MB.
160 Dynamic loading is not implemented.
164 =head2 Compiling Perl 5 on the EPOC cross compiling environment
166 Sorry, this is far too short.
172 You will need the C++ SDK from http://developer.epocworld.com/.
176 You will need to set up the cross SDK from
177 http://www.science-computing.de/o.flebbe/sdk
181 You may have to adjust config.sh (cc, cppflags) to reflect your epoc
186 Get the Perl sources from your nearest CPAN site.
194 Build a native perl from this sources... Make sure to save the
195 miniperl executable as miniperl.native.
197 Start again from scratch
202 cp miniperl.native miniperl
204 make ext/Errno/pm_to_blib
205 perl link.pl perlmain.o lib/auto/DynaLoader/DynaLoader.a \
206 lib/auto/Data/Dumper/Dumper.a \
207 lib/auto/File/Glob/Glob.a lib/auto/IO/IO.a \
208 lib/auto/Socket/Socket.a \
209 lib/auto/Fcntl/Fcntl.a lib/auto/Sys/Hostname/Hostname.a \
210 perl.a `cat ext.libs`
213 wine G:/bin/makesis perl.pkg perl.sis
217 =head1 SUPPORT STATUS OF PERL ON EPOC
219 I'm offering this port "as is". You can ask me questions, but I can't
220 guarantee I'll be able to answer them.
224 Olaf Flebbe <o.flebbe@science-computing.de>
225 http://www.science-computing.de/o.flebbe/perl/