nSubmenuCtrl++;
  }
}

/* Add hyperlinks depending on the existence and values of special
** parameters in the request's query string. The names of a query's
** parameters that are investigated are obtainted by concatenation of
** the caller-provided zPrefix with suffix "smplXY", where optional
** ending XY consists of a digit X from the set {1,2,3,4,5} and an
** optional letter Y which (if present) must be either 'a' or 's'.
** zPrefix must start with a lowercase letter,
** be short and have no strange characters. Parameter's value
** is well-formed if its first filepath segment (separated by '/')
** has no strange characters. Malformed values are silently ignored.
**
** The text for the resulting submenu label equals to the value of the
** parameter modulus some prettification for better UX:
**  1)  If a parameter's value starts with a lowercase letter and
**      contains '/' then it goes unchanged into the user-visible label.

**   style_finish_page() provides propper escaping via %h format.
*/
void style_submenu_parametric(
  const char *zPrefix   /* common prefix of the query parameters names */
){
  static const char *suffix = "smpl"; /* common suffix for param names */
  static const short sfxlen =  4;     /* length of the above suffix    */
  static const char  sfxext[3] = {'a','s',0};  /* extra suffix ending  */
  const char *zQS;     /* QUERY_STRING */
  char  zN[32];        /* buffer for parameter names to probe */
  short i,j,l;

  /* zPrefix must be tidy and short; also filter out ENV/CGI variables  */
  assert( zPrefix != 0 && fossil_islower(zPrefix[0]) );
  l = strnlen( zPrefix, sizeof(zN) );
  assert( l+sfxlen+3 <= sizeof(zN) );
  assert( fossil_no_strange_characters(zPrefix) );
  /* concatenate zPrefix and suffix */
  strcpy( zN, zPrefix );
  strcpy( zN + l, suffix );
  l += sfxlen;
  zN[l+2] = 0; /* nul-terminator after ...smplXY suffix */
  zQS = PD("QUERY_STRING","");
  for( i = 0; i <= 5; i++ ){

    zN[l] = ( i == 0 ?  0 : '0' + i ); /* ...smpl instead of ...smpl0 */
    for( j = (i ? 0 : sizeof(sfxext)-1); j < sizeof(sfxext); j++ ){
      const char *zV, *z;
      zN[l+1] = sfxext[j];
      zV = PD(zN,"");
      if( zV[0] == 0 || zV[0] == '/' || zV[0] == '_' || zV[0] == '-' ){
        continue;
      }
      /* require the first path segment to be unfancy ASCII string */
      for( z = zV; z[0] && z[0] != '/' ;){
        if( fossil_isalnum(z[0]) || z[0]=='_' || z[0]=='-' ) z++;
        else break;
      }
      if( z[0] != 0 && z[0] != '/' )
        continue;
      assert( nSubmenu < count(aSubmenu) );
      if(fossil_islower(zV[0]) && z[0]=='/'){
        aSubmenu[nSubmenu].zLabel = mprintf( "%s",zV); /* memory leak?  */
      }else{
        /* prepend a label with an unobtrusive symbol that "sorts-last";
        ** this clearly distincts it from the built-in elements */
        static const char *mark = "✧";
        char *z = mprintf("%s%s",mark,zV);
        aSubmenu[nSubmenu].zLabel = z;
        /* also prettify the first segment */
        z += strlen(mark);
        z[0] = fossil_toupper(z[0]);
        for(; z[0]!=0; z++ ){
          if( z[0]=='_' ) z[0] = ' ';
          else if( z[0] == '/' ){     /* show just the first segment */
            z[0] = 0;
            break;
          }
        }
      }
      if( zQS[0] ){
        aSubmenu[nSubmenu].zLink  = mprintf("%R/%s?%s",zV,zQS);
      }else{
        aSubmenu[nSubmenu].zLink  = mprintf("%R/%s",zV);
      }
      nSubmenu++;
    }
  }
}

/*
** Disable or enable the submenu
*/
void style_submenu_enable(int onOff){