On Tue, Oct 27, 2009 at 9:22 PM, Matt Amos <[email protected]> wrote: > On 10/28/09, Anthony <[email protected]> wrote: >> Regarding usernames, keys, and values in the OSM database, are there >> are restrictions on what characters are allowed? Tabs, carriage >> returns, line feeds, nulls? All allowed? > > i think the current set of allowed characters are those which are in > the XML character range: http://www.w3.org/TR/REC-xml/#NT-Char > > this includes \t, \n and \r, but not nulls. to be honest, i can't see > a good use for these characters, but someone out there is bound to be > using them for something ;-) > > cheers, > > matt
Just took a look at the planet dump code at http://svn.openstreetmap.org/applications/utils/planet.osm/C/output_osm.c In xmlescape(): "} else if ((*in >= 0) && (*in < 32)) { escape_tmp[len] = '?'; len++; } else {" So, it looks like \t, \n,and \r are all illegal, or at least will get silently converted to "?" by the planet dumper. I can confirm that these three characters don't actually exist in the current planet dump. Still somewhat ambiguous if they're actually illegal. At least, I haven't found any documentation on this. But for now I guess I'll assume they are. Anthony _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
