fossil_free((void *)azVals);
  return rc;
}

/*
** WEBPAGE: rptview
**
** Generate a report.  The "rn" query parameter is the report number
** corresponding to REPORTFMT.RN.  If the "tablist" query parameter exists,
** then the output consists of lines of tab-separated fields instead of
** an HTML table.
**
** Submenu of the /rptview page can be extended with additional
** hyperlinks by providing query parameter(s) of the form rvsmplXY=Z.
** Optional ending XY consists of a digit X from the set {1,2,3,4,5}
** and an optional letter Y that (if present) must be either 'a' or 's'.
** Mandatory Z is a repo-local hyperlink's target (wihout leading '/').
**
** For details see the wiki page "branch/rptview-submenu-paralink".
*/
void rptview_page(void){
  rptview_page_content(0, 1, 1);
}

/*
** Render a report.

      if( zQS[0] ){
        style_submenu_element("Raw","%R/%s?tablist=1&%s",g.zPath,zQS);
        style_submenu_element("Reports","%R/reportlist?%s",zQS);
      } else {
        style_submenu_element("Raw","%R/%s?tablist=1",g.zPath);
        style_submenu_element("Reports","%R/reportlist");
      }
      style_submenu_parametric("rv");

      if( g.perm.Admin
        || (g.perm.TktFmt && g.zLogin && fossil_strcmp(g.zLogin,zOwner)==0) ){
        style_submenu_element("Edit", "rptedit?rn=%d", rn);
      }
      if( g.perm.TktFmt ){
        style_submenu_element("SQL", "rptsql?rn=%d",rn);
      }

**
**      style_submenu_element()
**      style_submenu_entry()
**      style_submenu_checkbox()
**      style_submenu_binary()
**      style_submenu_multichoice()
**      style_submenu_sql()
**      style_submenu_parametric()
**
** prior to calling style_finish_page().  The style_finish_page() routine
** will generate the appropriate HTML text just below the main
** menu.
*/
static struct Submenu {
  const char *zLabel;        /* Button label */

    aSubmenuCtrl[nSubmenuCtrl].iSize = n/2;
    aSubmenuCtrl[nSubmenuCtrl].azChoice = (const char *const *)az;
    aSubmenuCtrl[nSubmenuCtrl].eVisible = STYLE_NORMAL;
    aSubmenuCtrl[nSubmenuCtrl].eType = FF_MULTI;
    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.
**  2a) If the first letter is uppercase then the label is
**      truncated at the first '/' (if any),
**  2b) otherwise the first letter is capitalized.
**  3)  Underscores in the first path segment are replaced with spaces.
**  4)  If the resulting label starts with an uppercase letter
**      then it is prepended with "✧" symbol for explicit distinction
**      from the built-in labels
**
** Important security-related note:
**   zLabel and zLink are formatted using %s because it is expected that
**   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] == '/' ){
        /* values may not contain "../" or "<"  */
        if( strstr(z,"../")!=NULL || strstr(z,"<")!=NULL ){
          continue;
        }
      }
      else if( z[0] != 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){
  submenuEnable = onOff;
}

    @ <div class="submenu">
    if( nSubmenu>0 ){
      qsort(aSubmenu, nSubmenu, sizeof(aSubmenu[0]), submenuCompare);
      for(i=0; i<nSubmenu; i++){
        struct Submenu *p = &aSubmenu[i];
        /* switching away from the %h formatting below might be dangerous
        ** because some places use %s to compose zLabel and zLink;
        ** e.g. /rptview page and the style_submenu_parametic() function
        */
        if( p->zLink==0 ){
          @ <span class="label">%h(p->zLabel)</span>
        }else{
          @ <a class="label" href="%h(p->zLink)">%h(p->zLabel)</a>
        }
      }

    ){
      style_submenu_element("Edit", "%R/wikiedit?name=%T", zPageName);
    }else if( rid && g.perm.ApndWiki ){
      style_submenu_element("Edit", "%R/wikiappend?name=%T", zPageName);
    }
    if( g.perm.Hyperlink ){
      style_submenu_element("History", "%R/whistory?name=%T", zPageName);
      style_submenu_parametric("wiki");
    }
  }
  if( !isPopup ){
    style_set_current_page("%T?name=%T", g.zPath, zPageName);
    wiki_page_header(WIKITYPE_UNKNOWN, zPageName, "");
    if( !noSubmenu ){
      wiki_standard_submenu(submenuFlags);

  *  Query parameter "year=YYYY" is now accepted by [/help?cmd=/timeline|/timeline].
  *  Add the "--as FILENAME" option to the "[/help?cmd=chat|fossil chat send]"
     command.
  *  The [/help?cmd=/ext|/ext page] generates the SERVER_SOFTWARE environment
     variable for clients.
  *  The [/help?cmd=tar|tar] and [/help?cmd=zip|zip commands] no longer
     sterilize the manifest file.
  *  Submenu of the [/help?cmd=/rptview|/rptview] and
     [/help?cmd=/wiki|/wiki] pages may be
     [branch/rptview-submenu-paralink|extended with auxiliary hyperlinks].

<h2 id='v2_17'>Changes for version 2.17 (2021-10-09)</h2>

  *  Major improvements to the "diff" subsystem, including: <ul>
     <li> Added new [/help?cmd=diff|formatting options]: --by, -b, --webpage, --json, --tcl.
     <li> Partial-line matching for unified diffs
     <li> Better partial-line matching for side-by-side diffs