Hi Alan, On 24.01.2009, at 23:20, Alan W. Irwin wrote:
> Hi Werner: > > I have some questions about your Lua bindings and examples. > > * Are the bindings specific to Lua 5.0? Not really, but I only test the bindings and the examples with lua 5.0 at the moment. I made a test with lua 5.1 in an earlier stage and it was also working. Reason is, that I have bought the Lua Book (Programming in Lua) some time ago (5.0) and that this manual is also now free to browse: http://www.lua.org/pil/ . For lua 5.1 there is only the reference manual ( http://www.lua.org/manual/ ) and although there were not so much significant changes between 5.0 and 5.1 I still stick to 5.0 in the moment (since I have the book). Since many people still use 5.0 I want the lua bindings work for both 5.0 and 5.1. > > > With a small build-system change I made locally, I was able to get the > bindings to build for Lua-5.1 (the latest Lua version on Debian > testing). > However, I don't know whether they will work. I can switch back to > Lua-5.0 > if necessary, but I would be willing to try 5.1 if you feel there is > a good chance it will work. It should actually work. If it compiles you made the first step and the example should actually run on 5.0 and 5.1. I also propose that either 5.0 or 5.1 is the default and if you want to use the non default lua interpreter you need to set a -DWITH_LUA50=ON option or something similar. > > > * Should your version check for exactly 5.0 in each example be > changed to > 5.0 or greater? (This is related to the first question.) No, this should be like that. 5.1 provided significantly progress in loading shared libraries, so the header part in the examples is needed that the examples run with 5.0 and 5.1. Older lua versions are not supported (at least not tested, the 4.x versions are really old). > > * How do you run the examples? * Enable lua bindings with -DENABLE_lua=ON * lua, lualib, lualiblib must be installed, plus developer packages (Ubuntu/Debian) * cd build-directory/bindings/lua (here you should find plplotluac.so) * lua source-directory/examples/lua/x05.lua Not perfect, but at least for lua 5.0 there is no easy way to tell lua where the shared library is (apart from setting an absolut path in the source). Lua 5.1 allows to set an environment variable where lua looks for the shared library (I don't know which), therefor you could run the examples anywhere you want. Also some of the examples where not fully ported (e.g. x01 and x08) but already committed since I already did some work. So don't expect all committed examples to run. > > * Do you need help putting the test infrastructure (ctest and > install-tree > equivalent) in place? This would be great, especially since I have not much experience with the testing scripts. I was thinking about configuring the lua examples with a "@MODULEPATH" variable which is set via cmake to the directory where the lua bindings are, so that the examples could be run from anywhere. Or something like that. For 5.1 this wouldn't be needed since you could set the enviroment variable. > > > I would be happy to help with that once I know how to run the > examples. This would be great. Regards, Werner > -- Dr. Werner Smekal Institut fuer Allgemeine Physik Technische Universitaet Wien Wiedner Hauptstr 8-10 A-1040 Wien Austria email: sme...@iap.tuwien.ac.at web: http://www.iap.tuwien.ac.at/~smekal phone: +43-(0)1-58801-13463 (office), +43-(0)1-58801-13469 (laboratory) fax: +43-(0)1-58801-13499 ------------------------------------------------------------------------------ This SF.net email is sponsored by: SourcForge Community SourceForge wants to tell your story. http://p.sf.net/sfu/sf-spreadtheword _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
