X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=README.epoc;h=74ea6b7c7edb209d40c3f7e3ffc0c667f45617f3;hb=78d3e1bf81e401020937b98d17bdfe2107623029;hp=b2aaf1859bd2bc628277aca7bca0f2674325c5d3;hpb=832c1cda13c7f6b8941ea36a112209c5783b167f;p=p5sagit%2Fp5-mst-13.2.git diff --git a/README.epoc b/README.epoc index b2aaf18..74ea6b7 100644 --- a/README.epoc +++ b/README.epoc @@ -1,80 +1,207 @@ -================================================= +If you read this file _as_is_, just ignore the funny characters you +see. It is written in the POD format (see pod/perlpod.pod) which is +specially designed to be readable as is. + +=head1 NAME + +README.epoc - Perl for EPOC + +=head1 SYNOPSIS + Perl 5 README file for the EPOC operating system. -================================================== -Olaf Flebbe -http://www.fortunecity.de/wolkenkratzer/trumpet/84/perl5.html -June 27, 1999 +=head1 INTRODUCTION + +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 EPOC. It runs on ER5 machines: Psion 5mx, +5mx Pro, Psion Revo, Psion Netbook and on the Ericson M128. It runs on +ER3 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. + +=head1 INSTALLING PERL ON EPOC + +You can download a ready-to-install version from +http://www.science-computing.de/o.flebbe/perl. You may find other +versions with some CPAN modules included at this location. + +You will need at least ~4MB free space in order to install and run +perl. + +Install perl.sis on the EPOC machine. If you do not know how to do +that, consult your PsiWin documentation. + +Perl itself and its standard library is using 2.5 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. + +=head1 STARTING PERL ON EPOC + +For ER5 machines, you can get the software Perlstart +http://www.science-computing.de/o.flebbe/perl. It contains file +recognizers for files with the extension .pl and .pm. With it you can +start perl with a double click on the camel icon. Be sure to configure +the perl installation drive first. You can even provide a script with +a special commandline, if needed. + +Alternatively you can use the epocemx shell + +If you have an ER3 machine (i.e. a PSION 5), you may have to supply the +full path to the perl executable C:\system\programs\perl.exe. + +If you need to set the current directory of perl, please use the +command line switch '-x'. See L for details. + +=head1 STOPPING PERL ON EPOC + +You can stop a running perl process in the task list by closing the +application `STDOUT'. You can use the kill command in the epocemx +shell to kill perl. + +=head1 USING PERL ON EPOC + +=head2 I/O Redirection on Epoc + +You can redirect the output with the UNIX bourne shell syntax (this is +built into perl rather then eshell) For instance the following command +line will run the script test.pl with the output redirected to +stdout_file, the errors to stderr_file and input from stdin_file. + +perl test.pl >stdout_file stderr_file + +Alternatively you can use 2>&1 in order to add the standard error +output to stdout. + +=head2 PATH Names on Epoc + +ESHELL looks for executables in ?:/System/Programs. The SIS file +installs perl in this special folder directory. The default drive and +path are the same as folder the executable resides. The EPOC +filesystem is case-preserving, not case-sensitive. + +The EPOC estdlib uses the ?: syntax for establishing a search order: +First in C: (RAM), then on D: (CF Card, if present) and last in Z: +(ROM). For instance ?:\a.txt searches for C:\a.txt, D:\a.txt (and +Z:\a.txt) + +The perl @INC search path is implemented with '?:'. Your perl +executable can live on a different drive than the perl library or even +your scripts. + +ESHELL paths have to be written with backslashes '\', file arguments +to perl with slashes '/'. Remember that I/O redirection is done +internally in perl, so please use slashes for redirects. + +perl.exe C:/test.pl >C:/output.txt + +=head2 Editors on Epoc + +A suitable text editor can be downloaded from symbian +http://www.symbian.com/developer/downloads/files/editor.zip + +=head2 Features of Perl on Epoc + +The built-in function EPOC::getcwd returns the current directory. + +=head2 Restrictions of Perl on Epoc + +Features are left out, because of restrictions of the POSIX support in +EPOC: + +=over 4 + +=item * + +backquoting, pipes etc. + +=item * + +system() does not inherit resources like: file descriptors, +environment etc. + +=item * + +signal, kill, alarm. Do not try to use them. This may be +impossible to implement on EPOC. + +=item * + +select is missing. + +=item * -Introduction ------------- +binmode does not exist. (No CR LF to LF translation for text files) -This is a port of Perl version 5, revision 005-57 to EPOC. +=item * -There are many features left out, because of restrictions of the posix -support in the SDK. +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. -The following known problems do exist: +=item * -1) very little testing. +Heap is limited to 4MB. -2) no support for system, backquoting, pipes etc. One cannot exec a - different process. +=item * -3) no signals, kill. Do not try to use them. +Dynamic loading is not implemented. -4) select is missing. +=back -5) binmode does not work. (No CR LF to LF translation for text files) +=head2 Compiling Perl 5 on the EPOC cross compiling environment -6) no Config.pm +Sorry, this is far too short. -7) no I/O redirection. +=over 4 -8) it may not run from a drive other than C: (I have no CF Card to test) +=item * -9) sockets may hardly of any use. +You will need the epocemx SDK from Eberhard Mattes. Watch out for an +announcement. -10) You need a shell in order to run perl.exe. +=item * +Get the Perl sources from your nearest CPAN site. -Compiling Perl 5 on the EPOC cross compiling envionment. --------------------------------------------------------- +=item * -0. You will need the C++ SDK from - http://developer.epocworld.com/. Install it on a separate drive. +Unpack the sources. -1. Unpack the sources in the epoc development drive: The sources - should be in a directory perl5.005/perl5.005_57 +=item * -2. Move all files in the directory perl5.005_57/epoc to perl5.005_57. +Build a native perl from this sources... Make sure to save the +miniperl executable as miniperl.native. -3. Check the perl.mmp file: It should have the correct locations for - project und subproject (see step 1) +Start again from scratch -4. Change to the EPOC development drive and run - makmake perl marm - nmake -f perl.marm - makesis perl.pkg perl5.005.sis + cp epoc/* . + ./Configure -S + make + cp miniperl.native miniperl + make + perl createpkg.pl -5. Beam the perl5.005.sis to the Psion5, install and enjoy! + emxsis perl.pkg perl.sis -ToDo List ---------- +=back -- Allocate an UID from symbian. +=head1 SUPPORT STATUS OF PERL ON EPOC -- Implement system() and I/O redirection, in order to run the - tests. +I'm offering this port "as is". You can ask me questions, but I can't +guarantee I'll be able to answer them. -- Implement getprotcolbyname() and relatives. +=head1 AUTHOR -- Implement perl as a OPX module. (What do you think?) +Olaf Flebbe +http://www.science-computing.de/o.flebbe/perl/ -Support Status --------------- +=head1 LAST UPDATE -I'm offering this port "as is". You can ask me questions, but I can't -guarantee I'll be able to answer them; I don't know much about Perl -itself; +2001-12-12 +=cut