[GRASS-dev] [grass-code I][446] Illegal filename. Character <'>
not allowed.
Markus Neteler
neteler at itc.it
Sun Jul 15 08:45:59 EDT 2007
For now, I have changed
- r.mode
- r.median
- r.statistics
- r.rescale.eq
- r.rescale
to use escaped double quotes instead of single quotes.
Markus
grass-codei wrote:
>
> code I item #446, was opened at 2007-07-15 10:20
> Status: Open
> Priority: 3
> Submitted By: Markus Neteler (markusn)
> Assigned to: Nobody (None)
> Summary: Illegal filename. Character <'> not allowed.
> Issue type: None
> Issue status: None
> GRASS version: None
> GRASS component: None
> Operating system: None
> Operating system version:
> GRASS CVS checkout date, if applies (YYMMDD):
>
>
> Initial Comment:
> In winQGIS/GRASS, this problem happens for a couple of commands (but eg
> r.average works, see also https://svn.qgis.org/trac/ticket/736):
>
> r.median base=CEA_cat at CEA_dati cover=CEA_aspect at CEA_dati
> output=aspect_median
> Illegal filename. Character <'> not allowed.
>
> ##########################
> Glynn Clements answered:
> r.median invokes r.stats via system(), using a single quote:
>
> strcpy (command, "r.stats -a '");
> strcat (command, G_fully_qualified_name (basemap, base_mapset));
> strcat (command, ",");
> strcat (command, G_fully_qualified_name (covermap, cover_mapset));
> strcat (command, "'");
>
> /* strcpy (command,"cat /tmp/t"); */
> stats_fd = popen (command, "r");
>
> sprintf (command, "r.reclass i='%s' o='%s'",
> G_fully_qualified_name (basemap, base_mapset), outmap);
>
> system() uses the platform's shell: /bin/sh on Unix, cmd.exe on
> Windows NT/2K/XP, command.com on 95/98/ME. Single quotes won't work
> with the Windows shells.
>
> r.average doesn't quote the map names, and uses double quotes around
> the output filename:
>
> sprintf (command, "%s -anC input=%s,%s fs=space > \"%s\"",
> STATS, basemap->answer, covermap->answer, tempfile1);
>
> Using double quotes should suffice so long as the map name doesn't
> contain $ or ` (a double quote would also be problematic, but isn't
> legal in map names).
>
> Ultimately, we need a Windows implementation of G_spawn_ex(), so that
> we can avoid the shell altogether.
>
> ----------------------------------------------------------------------
>
> You can respond by visiting:
> http://wald.intevation.org/tracker/?func=detail&atid=204&aid=446&group_id=21
>
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