"Thomas H." <[EMAIL PROTECTED]> writes:
> Tom Lane wrote:
>> Can any Windows hackers check into whether the WIN32 coding in
>> wchar2char() and char2wchar() in ts_locale.c is sane?

> has anyone had the chance to look into that problem? i'd be more than 
> willing to help testing an updated build if needed.

After re-reading Microsoft's man pages I think I see the problem ---
attached patch is applied.

                        regards, tom lane

Index: src/backend/tsearch/ts_locale.c
===================================================================
RCS file: /cvsroot/pgsql/src/backend/tsearch/ts_locale.c,v
retrieving revision 1.4
diff -c -r1.4 ts_locale.c
*** src/backend/tsearch/ts_locale.c     15 Nov 2007 21:14:38 -0000      1.4
--- src/backend/tsearch/ts_locale.c     24 Nov 2007 21:14:49 -0000
***************
*** 23,29 ****
   * wchar2char --- convert wide characters to multibyte format
   *
   * This has the same API as the standard wcstombs() function; in particular,
!  * tolen is the maximum number of bytes to store at *to, and *from should be
   * zero-terminated.  The output will be zero-terminated iff there is room.
   */
  size_t
--- 23,29 ----
   * wchar2char --- convert wide characters to multibyte format
   *
   * This has the same API as the standard wcstombs() function; in particular,
!  * tolen is the maximum number of bytes to store at *to, and *from must be
   * zero-terminated.  The output will be zero-terminated iff there is room.
   */
  size_t
***************
*** 73,93 ****
        {
                int                     r;
  
!               r = MultiByteToWideChar(CP_UTF8, 0, from, fromlen, to, tolen);
! 
!               if (r <= 0)
                {
!                       pg_verifymbstr(from, fromlen, false);
!                       ereport(ERROR,
!                                       
(errcode(ERRCODE_CHARACTER_NOT_IN_REPERTOIRE),
!                                        errmsg("invalid multibyte character 
for locale"),
!                                        errhint("The server's LC_CTYPE locale 
is probably incompatible with the database encoding.")));
                }
  
!               Assert(r <= tolen);
  
!               /* Microsoft counts the zero terminator in the result */
!               return r - 1;
        }
  #endif   /* WIN32 */
  
--- 73,100 ----
        {
                int                     r;
  
!               /* stupid Microsloth API does not work for zero-length input */
!               if (fromlen == 0)
!                       r = 0;
!               else
                {
!                       r = MultiByteToWideChar(CP_UTF8, 0, from, fromlen, to, 
tolen - 1);
! 
!                       if (r <= 0)
!                       {
!                               /* see notes in oracle_compat.c about error 
reporting */
!                               pg_verifymbstr(from, fromlen, false);
!                               ereport(ERROR,
!                                               
(errcode(ERRCODE_CHARACTER_NOT_IN_REPERTOIRE),
!                                                errmsg("invalid multibyte 
character for locale"),
!                                                errhint("The server's LC_CTYPE 
locale is probably incompatible with the database encoding.")));
!                       }
                }
  
!               Assert(r < tolen);
!               to[r] = 0;
  
!               return r;
        }
  #endif   /* WIN32 */
  
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