Doubled colon in LOADPATH not expanding to default path

[John W. Eaton]

On 20-Oct-1998, Rafael Laboissiere <address@hidden> wrote:

| Is it normal that a doubled colon in the middle of LOADPATH does not
| expand to the default path (as documented in the in kpathsea manual)?  I
| mean: when LOADPATH starts (ends) with a colon, the default path is
| prepended (appended) to its value, but if LOADPATH is equal to
| e.g. "a::b", the default path does not get expanded between "a:" and
| ":b".

I didn't know about this feature.  Perhaps I'm not using kpathsea as
well as I could, since none of Octave's path variables get default
values from a kpathsea config file.  I'll have to check on that.  In
any case, here is a quick patch that will make Octave do what you
want, at least for LOADPATH.

Thanks,

jwe


Tue Oct 20 20:58:04 1998  John W. Eaton  <address@hidden>

        * defaults.cc (maybe_add_default_load_path): If LOADPATH contains
        an embedded "::", insert the default path there too.


*** defaults.cc~        Fri Sep 25 14:20:55 1998
--- defaults.cc Tue Oct 20 20:57:45 1998
***************
*** 262,267 ****
--- 262,277 ----
  
        if (pathstring[pathstring.length () - 1] == SEPCHAR)
        retval.append (std_path);
+ 
+       size_t pos = 0;
+       do
+       {
+         pos = retval.find ("::");
+ 
+         if (pos != NPOS)
+           retval.insert (pos+1, std_path);
+       }
+       while (pos != NPOS);
      }
  
    return retval;