Re: pgsql: We're going to have to spell dotless i - Mailing list pgsql-hackers

Andrew Dunstan wrote:
> If we want to quote references, we should quote the XML standard. For
> example, see here to see the exact charset supported by XML:
> http://www.w3.org/TR/2006/REC-xml11-20060816/#charsets.

The actual cause of the processing problems we have been seeing are the
character set definitions in the SGML declarations of the respective
document types.

For DocBook SGML 4.2:

CHARSET
       BASESET "ISO 646:1983//CHARSET International Reference Version (IRV)//ESC 2/5 4/0"       DESCSET
 0   9   UNUSED                   9   2     9                  11   2   UNUSED                  13   1    13
     14  18   UNUSED                  32  95    32                 127   1   UNUSED
 
       BASESET "ISO Registration Number 100//CHARSET ECMA-94 Right Part of Latin Alphabet Nr. 1//ESC 2/13 4/1"
DESCSET                128  32   UNUSED                 160  96   32
 

For XML:
    CHARSET        BASESET            "ISO Registration Number 177//CHARSET             ISO/IEC 10646-1:1993 UCS-4 with
implementation            level 3//ESC 2/5 2/15 4/6"        DESCSET                0        9  UNUSED                9
     2       9               11        2  UNUSED               13        1      13               14       18  UNUSED
          32       95      32              127        1  UNUSED              128       32  UNUSED              160
55136    160            55296     2048  UNUSED -- surrogates --            57344     8190   57344            65534
 2  UNUSED -- FFFE and FFFF --            65536  1048576   65536 -- 16 planes outside BMP --
 

-- 
Peter Eisentraut
http://developer.postgresql.org/~petere/