On 2009-09-01 12:08+0200 Werner Smekal wrote: > Hi Alban, > > yes this [setting locale in qt] works.
Hi Werner: Thanks very much for thinking of locale as a possibility for messing up sscanf. That was a stroke of debugging genius, and it is wonderful news that we now have the reason for all the strange results you were getting when attempting to read palette files. However, I don't think the current solution (revision 10363) to this problem is correct. Instead of forcing the C locale whenever we use qt, the user should be allowed to use any locale they like for _user_ input to PLplot regardless of device driver. Of course, our palette files absolutely require setlocale(LC_NUMERIC, "C"); in order to be read properly as you have discovered. Thus, I think our best solution to this whole issue is to save the user locale, use setlocale(LC_NUMERIC, "C"); to read the file, then restore the user locale in both cmap0_palette_read and plspal1. This method absolutely guards against any locale issue (say for a different library than qt) ever again screwing up palette file reading so this is what I like. What do you think of this idea? If you agree, would you be willing to help with the implementation and testing? (I don't know how to get the current locale [there appears to be no function called getlocale, although localeconv might be a possibility on Linux], and we have to insure that setlocale [and whatever you recommend for getting the current locale information] works on all our platforms.) Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); PLplot scientific plotting software package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
