In gmane.comp.mathematics.sage.devel, you wrote: > On Mar 15, 12:21 am, "syd.lavas...@gmail.com" <syd.lavas...@gmail.com> > wrote: >> The problem is that my home directory is: >> >> /files3/home/sahosse/ >> >> but I only have execution permission to the directory "home": > > I confirm: > > $ mkdir /tmp/test > $ chmod a-r /tmp/test > $ mkdir /tmp/test/a > $ touch /tmp/test/a/b > $ ls /tmp/test/a/* > /tmp/test/a/b > > $ ecl > ECL (Embeddable Common-Lisp) 11.1.1 > [...] >> (directory "/tmp/test/a/*") > > NIL >> (quit) > $ chmod u+r /tmp/test > $ ecl > ECL (Embeddable Common-Lisp) 11.1.1 > [...] >> (directory "/tmp/test/a/*") > > (#P"/tmp/test/a/b") > > so, changing read permissions on a directory higher up in the tree > makes everything below not reachable for "directory". The same problem > arises for multi-level wildcards in the shell, i.e., "ls /tmp/test/*/ > *" can't find /tmp/test/a/b either if test is not readable. I guess > ECL uses the same code for wildcards as it uses for specified path > components. > > I have checked the CLHS and no mention is made of how permissions > should be handled by lisp. I guess that is implementation-dependent. > From that perspective, ECL could just define that read permission is > required on all components of a path in order for it to be reachable, > but since that is so incompatible with UNIX, I think they will > consider this a bug as well.
I've sent this to ecls-l...@lists.sourceforge.net as a bug report. Dima -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
