Fossil

.timelineSelected > .timelineVerboseCell {
  padding: .75em;
  border-radius: 5px;
  border: solid #ff8000;
  vertical-align: top;
  text-align: left;
  background: #442800
}
span.timelineSelected {
  border-radius: 5px;
  border: solid #ff8000;
  vertical-align: top;
  text-align: left;
  background: #442800
}
.timelineSelected {}
.timelineSecondary {}
.timelineSecondary > .timelineColumnarCell,
.timelineSecondary > .timelineCompactCell,
.timelineSecondary > .timelineDetailCell,
.timelineSecondary > .timelineModernCell,
.timelineSecondary > .timelineVerboseCell {
  padding: .75em;
  border-radius: 5px;
  border: solid #0080ff;
  vertical-align: top;
  text-align: left;
  background: #002844
}
span.timelineSecondary {
  border-radius: 5px;
  border: solid #0080ff;
  vertical-align: top;
  text-align: left;
  background: #002844
}
.timelineCurrent > .timelineColumnarCell,
.timelineCurrent > .timelineCompactCell,
.timelineCurrent > .timelineDetailCell,
.timelineCurrent > .timelineModernCell,
.timelineCurrent > .timelineVerboseCell {
  vertical-align: top;

tr.timelineCurrent {
  border-left: 2px solid orange;
  background-color: #ffc;
  border-bottom: 1px solid #ddd;
  border-right: 1px solid #ddd;
}

.timelineSelected {
  border-left: 2px solid orange;
  background-color: #ffffe8;
  border-bottom: 1px solid #ddd;
  border-right: 1px solid #ddd;
}
.timelineSecondary {
  background-color: #e8ffff;
}

tr.timelineCurrent td.timelineTableCell {
}

tr.timelineBottom td {
  border-bottom: 0;
}

  border: 0;
  cellpadding: 0;
  font-family: "courier new";
  border-spacing: 0px 2px;
  // border-collapse: collapse;
}

.timelineSelected {
  background-color: #7EA2D9;
}
.timelineSecondary {
  background-color: #7EA27E;
}

/* commit node */
.tl-node {
  width: 10px;
  height: 10px;
  border: 1px solid #fff;
  background: #485D7B;

}

.timelineTable .timelineSelected {
  background: #222;
  border:     0;
  box-shadow: none;
}
.timelineSelected {}
.timelineSecondary {}

.timelineTable .timelineSelected .timelineTime {
  background:    #333;
  border-radius: 1rem 0 0 1rem;
  box-shadow:    2px 2px 1px #000;
}

.timelineTable .timelineSelected .timelineColumnarCell {
  background: #333;
  box-shadow: 2px 2px 1px #000;
}

.timelineTable .timelineSelected .timelineModernCell  ,
.timelineTable .timelineSelected .timelineCompactCell ,
.timelineTable .timelineSelected .timelineVerboseCell ,
.timelineTable .timelineSelected .timelineDetailCell  {
  background:    #333;
  border-radius: 0 1rem 1rem 0;
  box-shadow:    2px 2px 1px #000;
}

span.timelineSelected {
  padding: 0 1em 0 1em;
  border-radius: 1rem;
  background: #333;
  box-shadow:    2px 2px 1px #000;
}

.timelineTable .timelineModernCell  .timelineModernComment  ,
.timelineTable .timelineModernCell  .timelineModernDetail   ,
.timelineTable .timelineCompactCell .timelineCompactComment ,
.timelineTable .timelineCompactCell .timelineCompactDetail  ,
.timelineTable .timelineVerboseCell .timelineVerboseComment ,
.timelineTable .timelineVerboseCell .timelineVerboseDetail  {

    zCleanFlag = db_get("clean-glob", 0);
  }
  if( zIgnoreFlag==0 ){
    zIgnoreFlag = db_get("ignore-glob", 0);
  }
  if( db_get_boolean("dotfiles", 0) ) scanFlags |= SCAN_ALL;
  vid = db_lget_int("checkout",0);
  db_begin_transaction();
  db_multi_exec("CREATE TEMP TABLE sfile(pathname TEXT PRIMARY KEY %s)",
                filename_collation());
  pClean = glob_create(zCleanFlag);
  pIgnore = glob_create(zIgnoreFlag);
  nRoot = strlen(g.zLocalRoot);

  /* Load the names of all files that are to be added into sfile temp table */

  softFlag = find_option("soft",0,0)!=0;
  hardFlag = find_option("hard",0,0)!=0;

  /* We should be done with options.. */
  verify_all_options();

  db_must_be_within_tree();
  db_begin_transaction();
  if( g.argv[1][0]=='f' ){ /* i.e. "forget" */
    removeFiles = 0;
  }else if( softFlag ){
    removeFiles = 0;
  }else if( hardFlag ){
    removeFiles = 1;
  }else{

    zCleanFlag = db_get("clean-glob", 0);
  }
  if( zIgnoreFlag==0 ){
    zIgnoreFlag = db_get("ignore-glob", 0);
  }
  if( db_get_boolean("dotfiles", 0) ) scanFlags |= SCAN_ALL;
  vid = db_lget_int("checkout",0);
  db_begin_transaction();

  /* step 1:
  ** Populate the temp table "sfile" with the names of all unmanaged
  ** files currently in the check-out, except for files that match the
  ** --ignore or ignore-glob patterns and dot-files.  Then add all of
  ** the files in the sfile temp table to the set of managed files.
  */

  if( vid==0 ){
    fossil_fatal("no checkout in which to rename files");
  }
  if( g.argc<4 ){
    usage("OLDNAME NEWNAME");
  }
  zDest = g.argv[g.argc-1];
  db_begin_transaction();
  if( g.argv[1][0]=='r' ){ /* i.e. "rename" */
    moveFiles = 0;
  }else if( softFlag ){
    moveFiles = 0;
  }else if( hardFlag ){
    moveFiles = 1;
  }else{

    "relay", "SMTP relay"
  };
  login_check_credentials();
  if( !g.perm.Setup ){
    login_needed(0);
    return;
  }
  db_begin_transaction();

  alert_submenu_common();
  style_submenu_element("Send Announcement","%R/announce");
  style_header("Email Notification Setup");
  @ <h1>Status</h1>
  @ <table class="label-value">
  if( alert_enabled() ){

    quiet = 1;
  }else if( strncmp(zCmd, "ignore", n)==0 ){
    int j;
    Blob fn = BLOB_INITIALIZER;
    Blob sql = BLOB_INITIALIZER;
    useCheckouts = find_option("ckout","c",0)!=0;
    verify_all_options();
    db_begin_transaction();
    for(j=3; j<g.argc; j++, blob_reset(&sql), blob_reset(&fn)){
      file_canonical_name(g.argv[j], &fn, useCheckouts?1:0);
      blob_append_sql(&sql,
         "DELETE FROM global_config WHERE name GLOB '%s:%q'",
         useCheckouts?"ckout":"repo", blob_str(&fn)
      );
      if( dryRunFlag ){

    blob_reset(&extra);
    return;
  }else if( strncmp(zCmd, "add", n)==0 ){
    int j;
    Blob fn = BLOB_INITIALIZER;
    Blob sql = BLOB_INITIALIZER;
    verify_all_options();
    db_begin_transaction();
    for(j=3; j<g.argc; j++, blob_reset(&fn), blob_reset(&sql)){
      sqlite3 *db;
      int rc;
      const char *z;
      file_canonical_name(g.argv[j], &fn, 0);
      z = blob_str(&fn);
      if( !file_isfile(z, ExtFILE) ) continue;

    char *zUUID;
    char *zDate;
    int rid;
    int i, n;
    int addCompress = 0;
    Manifest *pManifest;

    db_begin_transaction();
    blob_init(&content, aContent, szContent);
    pManifest = manifest_parse(&content, 0, 0);
    manifest_destroy(pManifest);
    blob_init(&content, aContent, szContent);
    if( pManifest ){
      blob_compress(&content, &content);
      addCompress = 1;

  ){
    int i, n, rid;
    char *zDate;
    Blob manifest;
    Blob cksum;
    const char *zFile = zName;

    db_begin_transaction();
    blob_zero(&manifest);
    for(i=n=0; zFile[i]; i++){
      if( zFile[i]=='/' || zFile[i]=='\\' ) n = i;
    }
    zFile += n;
    if( zFile[0]==0 ) zFile = "unknown";
    blob_appendf(&manifest, "A %F %F\n", zFile, zTarget);

  }else if( strncmp(zCmd, "undo", n)==0 ){
    char *zLog;
    Blob log, id;
    int ridBad = 0;
    int ridGood = 0;
    int cnt = 0, i;
    foundCmd = 1;
    db_begin_transaction();
    zLog = db_lget("bisect-log","");
    blob_init(&log, zLog, -1);
    while( blob_token(&log, &id) ){ cnt++; }
    if( cnt==0 ){
      fossil_fatal("no previous bisect steps to undo");
    }
    blob_rewind(&log);

*******************************************************************************
**
** This file contains code used to create new branches within a repository.
*/
#include "config.h"
#include "branch.h"
#include <assert.h>

/*
** If RID refers to a check-in, return the name of the branch for that
** check-in.
**
** Space to hold the returned value is obtained from fossil_malloc()
** and should be freed by the caller.
*/
char *branch_of_rid(int rid){
  char *zBr = 0;
  static Stmt q;
  db_static_prepare(&q,
      "SELECT value FROM tagxref"
      " WHERE rid=$rid AND tagid=%d"
      " AND tagtype>0", TAG_BRANCH);
  db_bind_int(&q, "$rid", rid);
  if( db_step(&q)==SQLITE_ROW ){
    zBr = fossil_strdup(db_column_text(&q,0));
  }
  db_reset(&q);
  if( zBr==0 ){
    static char *zMain = 0;
    if( zMain==0 ) zMain = db_get("main-branch","trunk");
    zBr = fossil_strdup(zMain);
  }
  return zBr;
}

/*
**  fossil branch new    NAME  BASIS ?OPTIONS?
**  argv0  argv1  argv2  argv3 argv4
*/
void branch_new(void){
  int rootid;            /* RID of the root check-in - what we branch off of */

        " WHERE tagtype>0"
        "   AND tagid=(SELECT tagid FROM tag WHERE tagname='sym-%q')",
        zBranch)!=0 ){
    fossil_fatal("branch \"%s\" already exists", zBranch);
  }

  user_select();
  db_begin_transaction();
  rootid = name_to_typed_rid(g.argv[4], "ci");
  if( rootid==0 ){
    fossil_fatal("unable to locate check-in off of which to branch");
  }

  pParent = manifest_get(rootid, CFTYPE_MANIFEST, 0);
  if( pParent==0 ){

  blob_reset(&sql);
  /* Always specify TIMELINE_DISJOINT, or graph_finish() may fail because of too
  ** many descenders to (off-screen) parents. */
  tmFlags = TIMELINE_DISJOINT | TIMELINE_NOSCROLL;
  if( PB("ng")==0 ) tmFlags |= TIMELINE_GRAPH;
  if( PB("brbg")!=0 ) tmFlags |= TIMELINE_BRCOLOR;
  if( PB("ubg")!=0 ) tmFlags |= TIMELINE_UCOLOR;
  www_print_timeline(&q, tmFlags, 0, 0, 0, 0, 0, brtimeline_extra);
  db_finalize(&q);
  style_footer();
}

**
** Query parameters:
**
**    name=PATH        Directory to display.  Optional.  Top-level if missing
**    ci=LABEL         Show only files in this check-in.  Optional.
**    type=TYPE        TYPE=flat: use this display
**                     TYPE=tree: use the /tree display instead
**    noreadme         Do not attempt to display the README file.
*/
void page_dir(void){
  char *zD = fossil_strdup(P("name"));
  int nD = zD ? strlen(zD)+1 : 0;
  int mxLen;
  int n;
  char *zPrefix;

      }
      @ <li class="%z(fileext_class(zFN))">%z(zLink)%h(zFN)</a></li>
    }
  }
  db_finalize(&q);
  manifest_destroy(pM);
  @ </ul></div>

  /* If the "noreadme" query parameter is present, do not try to
  ** show the content of the README file.
  */
  if( P("noreadme")!=0 ){
    style_footer();
    return;
  }

  /* If the directory contains a readme file, then display its content below
  ** the list of files
  */
  db_prepare(&q,
    "SELECT x, u FROM localfiles"
    " WHERE x COLLATE nocase IN"

  Stmt q;

  verify_all_options();
  bundle_attach_file(g.argv[3], "b1", 1);
  db_prepare(&q,
    "INSERT INTO bblob(blobid, uuid, sz, delta, data, notes) "
    "VALUES(NULL, $uuid, $sz, NULL, $data, $filename)");
  db_begin_transaction();
  for(i=4; i<g.argc; i++){
    int sz;
    blob_read_from_file(&content, g.argv[i], ExtFILE);
    sz = blob_size(&content);
    sha1sum_blob(&content, &hash);
    blob_compress(&content, &content);
    db_bind_text(&q, "$uuid", blob_str(&hash));

  find_checkin_associates("tobundle", 0);
  verify_all_options();
  describe_artifacts("IN tobundle");

  if( g.argc!=4 ) usage("export BUNDLE ?OPTIONS?");
  /* Create the new bundle */
  bundle_attach_file(g.argv[3], "b1", 1);
  db_begin_transaction();

  /* Add 'mtime' and 'project-code' entries to the bconfig table */
  db_multi_exec(
    "INSERT INTO bconfig(bcname,bcvalue)"
    " VALUES('mtime',datetime('now'));"
  );
  db_multi_exec(

      "   AND NOT EXISTS(SELECT 1 FROM blob WHERE uuid=bblob.delta)",
      HNAME_MIN);
  if( zMissingDeltas && zMissingDeltas[0] ){
    fossil_fatal("delta basis artifacts not found in repository: %s",
                 zMissingDeltas);
  }

  db_begin_transaction();
  db_multi_exec(
    "CREATE TEMP TABLE bix("
    "  blobid INTEGER PRIMARY KEY,"
    "  delta INTEGER"
    ");"
    "CREATE INDEX bixdelta ON bix(delta);"
    "INSERT INTO bix(blobid,delta)"

static void bundle_purge_cmd(void){
  int bForce = find_option("force",0,0)!=0;
  int bTest = find_option("test",0,0)!=0;  /* Undocumented --test option */
  const char *zFile = g.argv[3];
  verify_all_options();
  if ( g.argc!=4 ) usage("purge BUNDLE ?OPTIONS?");
  bundle_attach_file(zFile, "b1", 0);
  db_begin_transaction();

  /* Find all check-ins of the bundle */
  db_multi_exec(
    "CREATE TEMP TABLE ok(rid INTEGER PRIMARY KEY);"
    "INSERT OR IGNORE INTO ok SELECT blob.rid FROM bblob, blob, plink"
    " WHERE bblob.uuid=blob.uuid"
    "   AND plink.cid=blob.rid;"

** if "u" is present and "developer" if "v" is present.
*/
void capability_expand(CapabilityString *pIn){
  static char *zNobody = 0;
  static char *zAnon = 0;
  static char *zReader = 0;
  static char *zDev = 0;
  static char *zAdmin = "bcdefghijklmnopqrtwz234567AD";
  int doneV = 0;

  if( pIn==0 ){
    fossil_free(zNobody); zNobody = 0;
    fossil_free(zAnon);   zAnon = 0;
    fossil_free(zReader); zReader = 0;
    fossil_free(zDev);    zDev = 0;

  { '3', CAPCLASS_FORUM, 0,
    "Forum-Write", "Create new forum messages" },
  { '4', CAPCLASS_FORUM, 0,
    "Forum-Trusted", "Create forum messages that bypass moderation" },
  { '5', CAPCLASS_FORUM|CAPCLASS_SUPER, 0,
    "Forum-Mod", "Moderator for forum messages" },
  { '6', CAPCLASS_FORUM|CAPCLASS_SUPER, 0,
    "Forum-Admin", "Grant capability '4' to other users" },
  { '7', CAPCLASS_ALERT, 0,
    "Alerts", "Sign up for email alerts" },
  { 'A', CAPCLASS_ALERT|CAPCLASS_SUPER, 0,
    "Announce", "Send announcements to all subscribers" },
  { 'D', CAPCLASS_OTHER, 0,
    "Debug", "Enable debugging features" },
};

  nUsedQP++;
  sortQP = 1;
}

/*
** Add another query parameter or cookie to the parameter set.
** zName is the name of the query parameter or cookie and zValue
** is its fully decoded value.  zName will be modified to be an
** all lowercase string.
**
** zName and zValue are not copied and must not change or be
** deallocated after this routine returns.  This routine changes
** all ASCII alphabetic characters in zName to lower case.  The
** caller must not change them back.
*/
void cgi_set_parameter_nocopy_tolower(
  char *zName,
  const char *zValue,
  int isQP
){
  int i;
  for(i=0; zName[i]; i++){ zName[i] = fossil_tolower(zName[i]); }
  cgi_set_parameter_nocopy(zName, zValue, isQP);
}

/*
** Add another query parameter or cookie to the parameter set.
** zName is the name of the query parameter or cookie and zValue
** is its fully decoded value.
**
** Copies are made of both the zName and zValue parameters.
*/
void cgi_set_parameter(const char *zName, const char *zValue){
  cgi_set_parameter_nocopy(mprintf("%s",zName), mprintf("%s",zValue), 0);
}

    if( fossil_strcmp(aParamQP[i].zName,zName)==0 ){
      aParamQP[i].zValue = zValue;
      assert( aParamQP[i].isQP );
      return;
    }
  }
  cgi_set_parameter_nocopy(zName, zValue, 1);
}
void cgi_replace_query_parameter_tolower(char *zName, const char *zValue){
  int i;
  for(i=0; zName[i]; i++){ zName[i] = fossil_tolower(zName[i]); }
  cgi_replace_query_parameter(zName, zValue);
}

/*
** Delete a parameter.
*/
void cgi_delete_parameter(const char *zName){
  int i;

/*
** Add a query parameter.  The zName portion is fixed but a copy
** must be made of zValue.
*/
void cgi_setenv(const char *zName, const char *zValue){
  cgi_set_parameter_nocopy(zName, mprintf("%s",zValue), 0);
}


/*
** Add a list of query parameters or cookies to the parameter set.
**
** Each parameter is of the form NAME=VALUE.  Both the NAME and the
** VALUE may be url-encoded ("+" for space, "%HH" for other special
** characters).  But this routine assumes that NAME contains no

        z++;
      }
      dehttpize(zValue);
    }else{
      if( *z ){ *z++ = 0; }
      zValue = "";
    }
    if( zName[0] && fossil_no_strange_characters(zName+1) ){
      if( fossil_islower(zName[0]) ){
        cgi_set_parameter_nocopy(zName, zValue, isQP);
      }else if( fossil_isupper(zName[0]) ){
        cgi_set_parameter_nocopy_tolower(zName, zValue, isQP);
      }
    }
#ifdef FOSSIL_ENABLE_JSON
    json_setenv( zName, cson_value_new_string(zValue,strlen(zValue)) );
#endif /* FOSSIL_ENABLE_JSON */
  }
}

  zBoundry = get_line_from_string(&z, &len);
  if( zBoundry==0 ) return;
  while( (zLine = get_line_from_string(&z, &len))!=0 ){
    if( zLine[0]==0 ){
      int nContent = 0;
      zValue = get_bounded_content(&z, &len, zBoundry, &nContent);
      if( zName && zValue ){
        if( fossil_islower(zName[0]) ){
          cgi_set_parameter_nocopy(zName, zValue, 1);
          if( showBytes ){
            cgi_set_parameter_nocopy(mprintf("%s:bytes", zName),
                 mprintf("%d",nContent), 1);
          }
        }else if( fossil_isupper(zName[0]) ){
          cgi_set_parameter_nocopy_tolower(zName, zValue, 1);
          if( showBytes ){
            cgi_set_parameter_nocopy_tolower(mprintf("%s:bytes", zName),
                 mprintf("%d",nContent), 1);
          }
        }
      }
      zName = 0;
      showBytes = 0;
    }else{
      nArg = tokenize_line(zLine, count(azArg), azArg);
      for(i=0; i<nArg; i++){
        int c = fossil_tolower(azArg[i][0]);
        int n = strlen(azArg[i]);
        if( c=='c' && sqlite3_strnicmp(azArg[i],"content-disposition:",n)==0 ){
          i++;
        }else if( c=='n' && sqlite3_strnicmp(azArg[i],"name=",n)==0 ){
          zName = azArg[++i];
        }else if( c=='f' && sqlite3_strnicmp(azArg[i],"filename=",n)==0 ){
          char *z = azArg[++i];
          if( zName && z ){
            if( fossil_islower(zName[0]) ){
              cgi_set_parameter_nocopy(mprintf("%s:filename",zName), z, 1);
            }else if( fossil_isupper(zName[0]) ){
              cgi_set_parameter_nocopy_tolower(mprintf("%s:filename",zName),
                                               z, 1);
            }
          }
          showBytes = 1;
        }else if( c=='c' && sqlite3_strnicmp(azArg[i],"content-type:",n)==0 ){
          char *z = azArg[++i];
          if( zName && z ){
            if( fossil_islower(zName[0]) ){
              cgi_set_parameter_nocopy(mprintf("%s:mimetype",zName), z, 1);
            }else if( fossil_isupper(zName[0]) ){
              cgi_set_parameter_nocopy_tolower(mprintf("%s:mimetype",zName),
                                               z, 1);
            }
          }
        }
      }
    }
  }
}

**
** SCGI typically omits PATH_INFO.  CGI sometimes omits REQUEST_URI and
** PATH_INFO when it is empty.
*/
void cgi_init(void){
  char *z;
  const char *zType;
  char *zSemi;
  int len;
  const char *zRequestUri = cgi_parameter("REQUEST_URI",0);
  const char *zScriptName = cgi_parameter("SCRIPT_NAME",0);
  const char *zPathInfo = cgi_parameter("PATH_INFO",0);

#ifdef FOSSIL_ENABLE_JSON
  int noJson = P("no_json")!=0;
  if( noJson==0 ){ json_main_bootstrap(); }
#endif
  g.isHTTP = 1;
  cgi_destination(CGI_BODY);
  if( zScriptName==0 ) malformed_request("missing SCRIPT_NAME");
  if( zRequestUri==0 ){
    const char *z = zPathInfo;
    if( zPathInfo==0 ){

  z = (char*)P("REMOTE_ADDR");
  if( z ){
    g.zIpAddr = mprintf("%s", z);
  }

  len = atoi(PD("CONTENT_LENGTH", "0"));
  zType = P("CONTENT_TYPE");
  zSemi = zType ? strchr(zType, ';') : 0;
  if( zSemi ){
    g.zContentType = mprintf("%.*s", (int)(zSemi-zType), zType);
    zType = g.zContentType;
  }else{
    g.zContentType = zType;
  }
  blob_zero(&g.cgiIn);
  if( len>0 && zType ){
    if( fossil_strcmp(zType, "application/x-fossil")==0 ){
      blob_read_from_channel(&g.cgiIn, g.httpIn, len);
      blob_uncompress(&g.cgiIn, &g.cgiIn);
    }
#ifdef FOSSIL_ENABLE_JSON
    else if( noJson==0 && (fossil_strcmp(zType, "application/json")==0
              || fossil_strcmp(zType,"text/plain")==0/*assume this MIGHT be JSON*/
              || fossil_strcmp(zType,"application/javascript")==0) ){
      g.json.isJsonMode = 1;
      cgi_parse_POST_JSON(g.httpIn, (unsigned int)len);
      /* FIXMEs:

      - See if fossil really needs g.cgiIn to be set for this purpose
      (i don't think it does). If it does then fill g.cgiIn and
      refactor to parse the JSON from there.

  ** Check that the user exists.
  */
  if( !db_exists("SELECT 1 FROM user WHERE login=%Q", g.zLogin) ){
    fossil_fatal("no such user: %s", g.zLogin);
  }

  hasChanges = unsaved_changes(useHash ? CKSIG_HASH : 0);
  db_begin_transaction();
  db_record_repository_filename(0);
  if( hasChanges==0 && !isAMerge && !allowEmpty && !forceFlag ){
    fossil_fatal("nothing has changed; use --allow-empty to override");
  }

  /* If none of the files that were named on the command line have
  ** been modified, bail out now unless the --allow-empty or --force

      if( cReply!='y' && cReply!='Y' ){
        fossil_exit(1);
      }
    }
  }else{
    db_multi_exec("REPLACE INTO vvar VALUES('ci-comment',%B)", &comment);
    db_end_transaction(0);
    db_begin_transaction();
  }

  /*
  ** Step 1: Compute an aggregate MD5 checksum over the disk image
  ** of every file in vid.  The file names are part of the checksum.
  ** The resulting checksum is the same as is expected on the R-card
  ** of a manifest.

  char *zVers;                   /* Version to checkout */
  int promptFlag;                /* True to prompt before overwriting */
  int vid, prior;
  int setmtimeFlag;              /* --setmtime.  Set mtimes on files */
  Blob cksum1, cksum1b, cksum2;

  db_must_be_within_tree();
  db_begin_transaction();
  forceFlag = find_option("force","f",0)!=0;
  forceMissingFlag = find_option("force-missing",0,0)!=0;
  keepFlag = find_option("keep",0,0)!=0;
  latestFlag = find_option("latest",0,0)!=0;
  promptFlag = find_option("prompt",0,0)!=0 || forceFlag==0;
  setmtimeFlag = find_option("setmtime",0,0)!=0;

    }
    fossil_print("Repository cloned into %s\n", g.argv[3]);
  }else{
    db_close_config();
    db_create_repository(g.argv[3]);
    db_open_repository(g.argv[3]);
    db_open_config(0,0);
    db_begin_transaction();
    db_record_repository_filename(g.argv[3]);
    db_initial_setup(0, 0, zDefaultUser);
    user_select();
    db_set("content-schema", CONTENT_SCHEMA, 0);
    db_set("aux-schema", AUX_SCHEMA_MAX, 0);
    db_set("rebuilt", get_version(), 0);
    db_unset("hash-policy", 0);

    db_close(1);
    if( nErr ){
      file_delete(g.argv[3]);
      fossil_fatal("server returned an error - clone aborted");
    }
    db_open_repository(g.argv[3]);
  }
  db_begin_transaction();
  fossil_print("Rebuilding repository meta-data...\n");
  rebuild_db(0, 1, 0);
  if( !noCompress ){
    fossil_print("Extra delta compression... "); fflush(stdout);
    extra_deltification();
    fossil_print("\n");
  }

  const char *zName;   /* Name of the configuration parameter */
  int groupMask;       /* Which config groups is it part of */
} aConfig[] = {
  { "css",                    CONFIGSET_CSS  },
  { "header",                 CONFIGSET_SKIN },
  { "footer",                 CONFIGSET_SKIN },
  { "details",                CONFIGSET_SKIN },
  { "js",                     CONFIGSET_SKIN },
  { "logo-mimetype",          CONFIGSET_SKIN },
  { "logo-image",             CONFIGSET_SKIN },
  { "background-mimetype",    CONFIGSET_SKIN },
  { "background-image",       CONFIGSET_SKIN },
  { "timeline-block-markup",  CONFIGSET_SKIN },
  { "timeline-date-format",   CONFIGSET_SKIN },
  { "timeline-dwelltime",     CONFIGSET_SKIN },

  }else
  if( strncmp(zMethod, "import", n)==0
       || strncmp(zMethod, "merge", n)==0 ){
    Blob in;
    int groupMask;
    if( g.argc!=4 ) usage(mprintf("%s FILENAME",zMethod));
    blob_read_from_file(&in, g.argv[3], ExtFILE);
    db_begin_transaction();
    if( zMethod[0]=='i' ){
      groupMask = CONFIGSET_ALL | CONFIGSET_OVERWRITE;
    }else{
      groupMask = CONFIGSET_ALL;
    }
    configure_receive_all(&in, groupMask);
    db_end_transaction(0);

  if( strncmp(zMethod, "reset", n)==0 ){
    int mask, i;
    char *zBackup;
    if( g.argc!=4 ) usage("reset AREA");
    mask = configure_name_to_mask(g.argv[3], 1);
    zBackup = db_text(0,
       "SELECT strftime('config-backup-%%Y%%m%%d%%H%%M%%f','now')");
    db_begin_transaction();
    export_config(mask, g.argv[3], 0, zBackup);
    for(i=0; i<count(aConfig); i++){
      const char *zName = aConfig[i].zName;
      if( (aConfig[i].groupMask & mask)==0 ) continue;
      if( zName[0]!='@' ){
        db_multi_exec("DELETE FROM config WHERE name=%Q", zName);
      }else if( fossil_strcmp(zName,"@user")==0 ){

  Blob hash;
  int markAsUnclustered = 0;
  int isDephantomize = 0;

  assert( g.repositoryOpen );
  assert( pBlob!=0 );
  assert( srcId==0 || zUuid!=0 );
  db_begin_transaction();
  if( zUuid==0 ){
    assert( nBlob==0 );
    /* First check the auxiliary hash to see if there is already an artifact
    ** that uses the auxiliary hash name */
    hname_hash(pBlob, 1, &hash);
    rid = fast_uuid_to_rid(blob_str(&hash));
    if( rid==0 ){

** Create a new phantom with the given UUID and return its artifact ID.
*/
int content_new(const char *zUuid, int isPrivate){
  int rid;
  static Stmt s1, s2, s3;

  assert( g.repositoryOpen );
  db_begin_transaction();
  if( uuid_is_shunned(zUuid) ){
    db_end_transaction(0);
    return 0;
  }
  db_static_prepare(&s1,
    "INSERT INTO blob(rcvid,size,uuid,content)"
    "VALUES(0,-1,:uuid,NULL)"

  ** make that candidate the new parent now */
  if( bestSrc>0 ){
    Stmt s1, s2;  /* Statements used to create the delta */
    blob_compress(&bestDelta, &bestDelta);
    db_prepare(&s1, "UPDATE blob SET content=:data WHERE rid=%d", rid);
    db_prepare(&s2, "REPLACE INTO delta(rid,srcid)VALUES(%d,%d)", rid, bestSrc);
    db_bind_blob(&s1, ":data", &bestDelta);
    db_begin_transaction();
    db_exec(&s1);
    db_exec(&s2);
    db_end_transaction(0);
    db_finalize(&s1);
    db_finalize(&s2);
    verify_before_commit(rid);
    rc = 1;

              "might irrecoverably damage the repository.  Make sure you\n"
              "have a backup copy!\n"
              "Continue? (y/N)? ", &x);
  c = blob_str(&x)[0];
  blob_reset(&x);
  if( c!='y' && c!='Y' ) return;
  db_find_and_open_repository(OPEN_ANY_SCHEMA, 0);
  db_begin_transaction();
  db_prepare(&q, "SELECT rid FROM delta WHERE srcid=:rid");
  for(i=2; i<g.argc; i++){
    int rid = atoi(g.argv[i]);
    fossil_print("Erasing artifact %d (%s)\n",
                 rid, db_text("", "SELECT uuid FROM blob WHERE rid=%d", rid));
    db_bind_int(&q, ":rid", rid);
    while( db_step(&q)==SQLITE_ROW ){

  if( g.xferPanic && g.cgiOutput==1 ){
    cgi_reset_content();
    @ error Database\serror:\s%F(z)
    cgi_reply();
  }
  fossil_fatal("Database error: %s", z);
}

/*
** Check a result code.  If it is not SQLITE_OK, print the
** corresponding error message and exit.
*/
static void db_check_result(int rc, Stmt *pStmt){
  if( rc!=SQLITE_OK ){
    db_err("SQL error (%d,%d: %s) while running [%s]",
       rc, sqlite3_extended_errcode(g.db),
       sqlite3_errmsg(g.db), blob_str(&pStmt->sql));
  }
}

/*
** All static variable that a used by only this file are gathered into
** the following structure.
*/
static struct DbLocalData {
  int nBegin;               /* Nesting depth of BEGIN */

/*
** Reset or finalize a statement.
*/
int db_reset(Stmt *pStmt){
  int rc;
  db_stats(pStmt);
  rc = sqlite3_reset(pStmt->pStmt);
  db_check_result(rc, pStmt);
  return rc;
}
int db_finalize(Stmt *pStmt){
  int rc;
  if( pStmt->pNext ){
    pStmt->pNext->pPrev = pStmt->pPrev;
  }
  if( pStmt->pPrev ){
    pStmt->pPrev->pNext = pStmt->pNext;
  }else if( db.pAllStmt==pStmt ){
    db.pAllStmt = pStmt->pNext;
  }
  pStmt->pNext = 0;
  pStmt->pPrev = 0;
  db_stats(pStmt);
  blob_reset(&pStmt->sql);
  rc = sqlite3_finalize(pStmt->pStmt);
  db_check_result(rc, pStmt);
  pStmt->pStmt = 0;
  return rc;
}

/*
** Return the rowid of the most recent insert
*/

** invalid when the statement is stepped or reset.
*/
void db_ephemeral_blob(Stmt *pStmt, int N, Blob *pBlob){
  blob_init(pBlob, sqlite3_column_blob(pStmt->pStmt, N),
              sqlite3_column_bytes(pStmt->pStmt, N));
}











/*
** Execute a single prepared statement until it finishes.
*/
int db_exec(Stmt *pStmt){
  int rc;
  while( (rc = db_step(pStmt))==SQLITE_ROW ){}
  rc = db_reset(pStmt);
  db_check_result(rc, pStmt);
  return rc;
}

/*
** COMMAND: test-db-exec-error
**
** Invoke the db_exec() interface with an erroneous SQL statement
** in order to verify the error handling logic.
*/
void db_test_db_exec_cmd(void){
  Stmt err;
  db_find_and_open_repository(0,0);
  db_prepare(&err, "INSERT INTO repository.config(name) VALUES(NULL);");
  db_exec(&err);
}

/*
** Print the output of one or more SQL queries on standard output.
** This routine is used for debugging purposes only.
*/
int db_debug(const char *zSql, ...){
  Blob sql;

    fossil_fatal("file already exists: %s", g.argv[2]);
  }

  db_create_repository(g.argv[2]);
  db_open_repository(g.argv[2]);
  db_open_config(0, 0);
  if( zTemplate ) db_attach(zTemplate, "settingSrc");
  db_begin_transaction();
  if( bUseSha1 ){
    g.eHashPolicy = HPOLICY_SHA1;
    db_set_int("hash-policy", HPOLICY_SHA1, 0);
  }
  if( zDate==0 ) zDate = "now";
  db_initial_setup(zTemplate, zDate, zDefaultUser);
  db_end_transaction(0);

    z = fossil_strdup(zDefault);
  }else if( zFormat!=0 ){
    z = db_text(0, "SELECT strftime(%Q,%Q,'unixepoch');", zFormat, z);
  }
  return z;
}
void db_set(const char *zName, const char *zValue, int globalFlag){
  db_begin_transaction();
  if( globalFlag ){
    db_swap_connections();
    db_multi_exec("REPLACE INTO global_config(name,value) VALUES(%Q,%Q)",
                   zName, zValue);
    db_swap_connections();
  }else{
    db_multi_exec("REPLACE INTO config(name,value,mtime) VALUES(%Q,%Q,now())",
                   zName, zValue);
  }
  if( globalFlag && g.repositoryOpen ){
    db_multi_exec("DELETE FROM config WHERE name=%Q", zName);
  }
  db_end_transaction(0);
}
void db_unset(const char *zName, int globalFlag){
  db_begin_transaction();
  if( globalFlag ){
    db_swap_connections();
    db_multi_exec("DELETE FROM global_config WHERE name=%Q", zName);
    db_swap_connections();
  }else{
    db_multi_exec("DELETE FROM config WHERE name=%Q", zName);
  }

** For maximum security, set "localauth" to 1.  However, because
** of the other restrictions (2) through (4), it should be safe
** to leave "localauth" set to 0 in most installations, and 
** especially on cloned repositories on workstations. Leaving
** "localauth" at 0 makes the "fossil ui" command more convenient
** to use.
*/
/*
** SETTING: lock-timeout  width=25 default=86400
** This is the number of seconds that a check-in lock will be held on
** the server before the lock expires.  The default is a 24-hour delay.
** Set this value to zero to disable the check-in lock mechanism.
**
** This value should be set on the server to which users auto-sync
** their work.  This setting has no affect on client repositories.  The
** check-in lock mechanism is only effective if all users are auto-syncing
** to the same server.
**
** Check-in locks are an advisory mechanism designed to help prevent
** accidental forks due to a check-in race in installations where many
** user are  committing to the same branch and auto-sync is enabled.
** As forks are harmless, there is no harm in disabling this mechanism.
** However, keeping check-in locks turned on can help prevent unnecessary
** confusion.
*/
/*
** SETTING: main-branch      width=40 default=trunk
** The value is the primary branch for the project.
*/
/*
** SETTING: manifest         width=5 versionable
** If enabled, automatically create files "manifest" and "manifest.uuid"

  font-size: small;
}
tr.timelineCurrent {
  padding: .1em .2em;
  border: 1px dashed #446979;
  box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
}
.timelineSelected {
  padding: .1em .2em;
  border: 2px solid lightgray;
  background-color: #ffc;
  box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
}
.timelineSecondary {
  background-color: #cff;
}
tr.timelineSelected td {
  border-radius: 0;
  border-width: 0;
}
tr.timelineCurrent td {
  border-radius: 0;
  border-width: 0;

    "     ORDER BY mtime DESC LIMIT %d"
    "  )"
    "INSERT INTO ok"
    "  SELECT rid FROM ancestor;",
    rid, rid, directOnly ? "AND plink.isPrim" : "", N
  );
}

/*
** Compute the youngest ancestor of record ID rid that is a member of
** branch zBranch.
*/
int compute_youngest_ancestor_in_branch(int rid, const char *zBranch){
  return db_int(0,
    "WITH RECURSIVE "
    "  ancestor(rid, mtime) AS ("
    "    SELECT %d, mtime FROM event WHERE objid=%d "
    "    UNION "
    "    SELECT plink.pid, event.mtime"
    "      FROM ancestor, plink, event"
    "     WHERE plink.cid=ancestor.rid"
    "       AND event.objid=plink.pid"
    "     ORDER BY mtime DESC"
    "  )"
    "  SELECT ancestor.rid FROM ancestor"
    "   WHERE EXISTS(SELECT 1 FROM tagxref"
                    " WHERE tagid=%d AND tagxref.rid=ancestor.rid"
                    "   AND value=%Q AND tagtype>0)"
    "  LIMIT 1",
    rid, rid, TAG_BRANCH, zBranch
  );
}

/*
** Compute all direct ancestors (merge ancestors do not count)
** for the check-in rid and put them in a table named "ancestor".
** Label each generation with consecutive integers going backwards
** in time such that rid has the smallest generation number and the oldest
** direct ancestor as the largest generation number.

  blob_reset(&sql);
  /* Always specify TIMELINE_DISJOINT, or graph_finish() may fail because of too
  ** many descenders to (off-screen) parents. */
  tmFlags = TIMELINE_LEAFONLY | TIMELINE_DISJOINT | TIMELINE_NOSCROLL;
  if( fNg==0 ) tmFlags |= TIMELINE_GRAPH;
  if( fBrBg ) tmFlags |= TIMELINE_BRCOLOR;
  if( fUBg ) tmFlags |= TIMELINE_UCOLOR;
  www_print_timeline(&q, tmFlags, 0, 0, 0, 0, 0, 0);
  db_finalize(&q);
  @ <br />
  style_footer();
}

#if INTERFACE
/* Flag parameters to compute_uses_file() */

      mxTime = 0;
    }
  }else{
    /* Default limit is as much as we can do in 1.000 seconds */
    iLimit = 0;
    mxTime = current_time_in_milliseconds()+1000;
  }
  db_begin_transaction();

  /* Get the artifact ID for the check-in begin analyzed */
  if( zRevision ){
    cid = name_to_typed_rid(zRevision, "ci");
  }else{
    db_must_be_within_tree();
    cid = db_lget_int("checkout", 0);

      zName = "";
    }else{
      if( *z ){ *z++ = 0; }
      zValue = "";
    }
    if( fossil_islower(zName[0]) ){
      cgi_replace_query_parameter(zName, zValue);
    }else if( fossil_isupper(zName[0]) ){
      cgi_replace_query_parameter_tolower(zName, zValue);
    }
  }
  return 0;
}

/*
** Fill Blob with a space-separated list of all command names that

      Blob tail;
      blob_zero(&tail);
      if( wiki_find_title(pBody, &title, &tail) ){
        style_header("%s", blob_str(&title));
        Th_Render(blob_str(&tail));
        blob_reset(&tail);
      }else{
        style_header("%h", zFilename);
        Th_Render(blob_str(pBody));
      }
    }else{
      Th_Render(blob_str(pBody));
    }
    if( !raw ){
      style_footer();

}

/*
** Decode a fossilized string in-place.
*/
void defossilize(char *z){
  int i, j, c;
  char *zSlash = strchr(z, '\\');
  if( zSlash==0 ) return;
  i = zSlash - z;
  for(j=i; (c=z[i])!=0; i++){
    if( c=='\\' && z[i+1] ){
      i++;
      switch( z[i] ){
        case 'n':  c = '\n';  break;
        case 's':  c = ' ';   break;
        case 't':  c = '\t';  break;

/*
** Return true if the input string contains only valid base-16 digits.
** If any invalid characters appear in the string, return false.
*/
int validate16(const char *zIn, int nIn){
  int i;
  if( nIn<0 ) nIn = (int)strlen(zIn);
  if( zIn[nIn]==0 ){
    return strspn(zIn,"0123456789abcdefABCDEF")==nIn;
  }
  for(i=0; i<nIn; i++, zIn++){
    if( zDecode[zIn[0]&0xff]>63 ){
      return zIn[0]==0;
    }
  }
  return 1;
}

){
  Blob event;
  char *zDate;
  Blob cksum;
  int nrid, n;

  blob_init(&event, 0, 0);
  db_begin_transaction();
  while( fossil_isspace(zComment[0]) ) zComment++;
  n = strlen(zComment);
  while( n>0 && fossil_isspace(zComment[n-1]) ){ n--; }
  if( n>0 ){
    blob_appendf(&event, "C %#F\n", n, zComment);
  }
  zDate = date_in_standard_format("now");

        if( z[i+2]=='/' || z[i+2]==0 ) return 0;
        if( z[i+2]=='.' && (z[i+3]=='/' || z[i+3]==0) ) return 0;
      }
    }
  }
  if( z[i-1]=='/' ) return 0;
  return 1;
}
int file_is_simple_pathname_nonstrict(const char *z){
  unsigned char c = (unsigned char) z[0];
  if( c=='/' || c==0 ) return 0;
  if( c=='.' ){
    if( z[1]=='/' || z[1]==0 ) return 0;
    if( z[1]=='.' && (z[2]=='/' || z[2]==0) ) return 0;
  }
  while( (z = strchr(z+1, '/'))!=0 ){
    if( z[1]=='/' ) return 0;
    if( z[1]==0 ) return 0;
    if( z[1]=='.' ){
      if( z[2]=='/' || z[2]==0 ) return 0;
      if( z[2]=='.' && (z[3]=='/' || z[3]==0) ) return 0;
    }
  }
  return 1;
}

/*
** If the last component of the pathname in z[0]..z[j-1] is something
** other than ".." then back it out and return true.  If the last
** component is empty or if it is ".." then return false.
*/

      fossil_free(zUuid);
    }
  }else{
    blob_appendf(&title, "History of ");
    hyperlinked_path(zFilename, &title, 0, "tree", "");
    if( fShowId ) blob_appendf(&title, " (%d)", fnid);
  }
  if( uBg ){
    blob_append(&title, " (color-coded by user)", -1);
  }
  @ <h2>%b(&title)</h2>
  blob_reset(&title);
  pGraph = graph_init();
  @ <table id="timelineTable%d(iTableId)" class="timelineTable">
  if( baseCheckin ){
    db_prepare(&qparent,
      "SELECT DISTINCT pid FROM mlink"

       /* 5 */ "  (SELECT uuid FROM blob WHERE rid=mlink.pmid),"
       /* 6 */ "  mperm,"
       /* 7 */ "  isaux"
       "  FROM mlink WHERE mid=%d ORDER BY 1",
       mid
    );
    @ <h1>MLINK table for check-in %h(zCI)</h1>
    render_checkin_context(mid, 0, 1);
    style_table_sorter();
    @ <hr />
    @ <div class='brlist'>
    @ <table class='sortable' data-column-types='ttxtttt' data-init-sort='1'>
    @ <thead><tr>
    @ <th>File</th>
    @ <th>Parent<br>Check-in</th>

  if( !incrFlag ){
    if( forceFlag ) file_delete(g.argv[2]);
    db_create_repository(g.argv[2]);
  }
  db_open_repository(g.argv[2]);
  db_open_config(0, 0);

  db_begin_transaction();
  if( !incrFlag ){
    db_initial_setup(0, 0, 0);
    db_set("main-branch", gimport.zTrunkName, 0);
  }

  if( svnFlag ){
    db_multi_exec(

  verify_cancel();
  db_end_transaction(0);
  fossil_print("                               \r");
  if( omitRebuild ){
    omitVacuum = 1;
  }else{
    db_begin_transaction();
    fossil_print("Rebuilding repository meta-data...\n");
    rebuild_db(0, 1, !incrFlag);
    verify_cancel();
    db_end_transaction(0);
  }
  if( !omitVacuum ){
    fossil_print("Vacuuming..."); fflush(stdout);

  }
}

/*
** Show the context graph (immediate parents and children) for
** check-in rid.
*/
void render_checkin_context(int rid, int rid2, int parentsOnly){
  Blob sql;
  Stmt q;
  int rx[2];
  int i, n;
  rx[0] = rid;
  rx[1] = rid2;
  n = rid2 ? 2 : 1;
  blob_zero(&sql);
  blob_append(&sql, timeline_query_for_www(), -1);

  db_multi_exec(
    "CREATE TEMP TABLE IF NOT EXISTS ok(rid INTEGER PRIMARY KEY);"
    "DELETE FROM ok;"
  );
  for(i=0; i<n; i++){
    db_multi_exec(
      "INSERT OR IGNORE INTO ok VALUES(%d);"
      "INSERT OR IGNORE INTO ok SELECT pid FROM plink WHERE cid=%d;",
      rx[i], rx[i]
    );
  }
  if( !parentsOnly ){
    for(i=0; i<n; i++){
      db_multi_exec(
        "INSERT OR IGNORE INTO ok SELECT cid FROM plink WHERE pid=%d;", rx[i]
      );
      if( db_table_exists("repository","cherrypick") ){
        db_multi_exec(
          "INSERT OR IGNORE INTO ok "
          "  SELECT parentid FROM cherrypick WHERE childid=%d;"
          "INSERT OR IGNORE INTO ok "
          "  SELECT childid FROM cherrypick WHERE parentid=%d;",
          rx[i], rx[i]
        );
      }
    }
  }
  blob_append_sql(&sql, " AND event.objid IN ok ORDER BY mtime DESC");
  db_prepare(&q, "%s", blob_sql_text(&sql));
  www_print_timeline(&q,
          TIMELINE_GRAPH
         |TIMELINE_FILLGAPS
         |TIMELINE_NOSCROLL
         |TIMELINE_XMERGE
         |TIMELINE_CHPICK,
       0, 0, 0, rid, rid2, 0);
  db_finalize(&q);
}

/*
** Show a graph all wiki, tickets, and check-ins that refer to object zUuid.
**
** If zLabel is not NULL and the graph is not empty, then output zLabel as

  if( !db_exists("SELECT 1 FROM ok") ) return;
  if( zLabel ) cgi_printf("%s", zLabel);
  blob_zero(&sql);
  blob_append(&sql, timeline_query_for_www(), -1);
  blob_append_sql(&sql, " AND event.objid IN ok ORDER BY mtime DESC");
  db_prepare(&q, "%s", blob_sql_text(&sql));
  www_print_timeline(&q, TIMELINE_DISJOINT|TIMELINE_GRAPH|TIMELINE_NOSCROLL,
                     0, 0, 0, 0, 0, 0);
  db_finalize(&q);
}

/*
** WEBPAGE: test-backlinks
**
** Show a timeline of all check-ins and other events that have entries

     "  WHERE blob.uuid BETWEEN backlink.target AND (backlink.target||'x')"
  );
  blob_zero(&sql);
  blob_append(&sql, timeline_query_for_www(), -1);
  blob_append_sql(&sql, " AND event.objid IN ok ORDER BY mtime DESC");
  db_prepare(&q, "%s", blob_sql_text(&sql));
  www_print_timeline(&q, TIMELINE_DISJOINT|TIMELINE_GRAPH|TIMELINE_NOSCROLL,
                     0, 0, 0, 0, 0, 0);
  db_finalize(&q);
  style_footer();
}


/*
** Append the difference between artifacts to the output

     "  WHERE tagxref.rid=%d;"
     "INSERT OR IGNORE INTO ok "
     " SELECT tagxref.origid"
     "   FROM tagxref JOIN tag ON tagxref.tagid=tag.tagid"
     "  WHERE tagxref.rid=%d;",
     rid, rid, rid
  );
#if 0
  db_multi_exec(
    "SELECT tag.tagid, tagname, "
    "       (SELECT uuid FROM blob WHERE rid=tagxref.srcid AND rid!=%d),"
    "       value, datetime(tagxref.mtime,toLocal()), tagtype,"
    "       (SELECT uuid FROM blob WHERE rid=tagxref.origid AND rid!=%d)"
    "  FROM tagxref JOIN tag ON tagxref.tagid=tag.tagid"
    " WHERE tagxref.rid=%d"
    " ORDER BY tagname /*sort*/", rid, rid, rid
  );
#endif
  blob_zero(&sql);
  blob_append(&sql, timeline_query_for_www(), -1);
  blob_append_sql(&sql, " AND event.objid IN ok ORDER BY mtime DESC");
  db_prepare(&q, "%s", blob_sql_text(&sql));
  www_print_timeline(&q, TIMELINE_DISJOINT|TIMELINE_GRAPH|TIMELINE_NOSCROLL,
                     0, 0, 0, rid, 0, 0);
  db_finalize(&q);
  style_footer();
}

/*
** WEBPAGE: vinfo
** WEBPAGE: ci

  const char *zUuid;   /* UUID of zName */
  const char *zParent; /* UUID of the parent check-in (if any) */
  const char *zRe;     /* regex parameter */
  ReCompiled *pRe = 0; /* regex */
  const char *zW;      /* URL param for ignoring whitespace */
  const char *zPage = "vinfo";  /* Page that shows diffs */
  const char *zPageHide = "ci"; /* Page that hides diffs */
  const char *zBrName; /* Branch name */

  login_check_credentials();
  if( !g.perm.Read ){ login_needed(g.anon.Read); return; }
  zName = P("name");
  rid = name_to_rid_www("name");
  if( rid==0 ){
    style_header("Check-in Information Error");

     "SELECT uuid, datetime(mtime,toLocal()), user, comment,"
     "       datetime(omtime,toLocal()), mtime"
     "  FROM blob, event"
     " WHERE blob.rid=%d"
     "   AND event.objid=%d",
     rid, rid
  );
  zBrName = branch_of_rid(rid);
  
  cookie_link_parameter("diff","diff","2");
  diffType = atoi(PD("diff","2"));
  if( db_step(&q1)==SQLITE_ROW ){
    const char *zUuid = db_column_text(&q1, 0);
    int nUuid = db_column_bytes(&q1, 0);
    char *zEUser, *zEComment;
    const char *zUser;
    const char *zOrigUser;
    const char *zComment;
    const char *zDate;
    const char *zOrigDate;

    int okWiki = 0;
    Blob wiki_read_links = BLOB_INITIALIZER;
    Blob wiki_add_links = BLOB_INITIALIZER;

    style_header("Check-in [%S]", zUuid);
    login_anonymous_available();
    zEUser = db_text(0,
                   "SELECT value FROM tagxref"
                   " WHERE tagid=%d AND rid=%d AND tagtype>0",
                    TAG_USER, rid);
    zEComment = db_text(0,
                   "SELECT value FROM tagxref WHERE tagid=%d AND rid=%d",
                   TAG_COMMENT, rid);



    zOrigUser = db_column_text(&q1, 2);
    zUser = zEUser ? zEUser : zOrigUser;
    zComment = db_column_text(&q1, 3);
    zDate = db_column_text(&q1,1);
    zOrigDate = db_column_text(&q1, 4);
    if( zOrigDate==0 ) zOrigDate = zDate;
    @ <div class="section">Overview</div>

      }
      @ %s(zLinks)</td></tr>
    }

    if( g.perm.Hyperlink ){
      @ <tr><th>Other&nbsp;Links:</th>
      @   <td>
      if( fossil_strcmp(zBrName, db_get("main-branch","trunk"))!=0 ){
        @ %z(href("%R/vdiff?branch=%!S", zUuid))branch diff</a> |
      }
      @ %z(href("%R/artifact/%!S",zUuid))manifest</a>
      @ | %z(href("%R/ci_tags/%!S",zUuid))tags</a>
      if( g.perm.Admin ){
        @   | %z(href("%R/mlink?ci=%!S",zUuid))mlink table</a>
      }
      if( g.anon.Write ){
        @   | %z(href("%R/ci_edit?r=%!S",zUuid))edit</a>
      }

  }
  db_finalize(&q1);
  if( !PB("nowiki") ){
    wiki_render_associated("checkin", zUuid, 0);
  }
  render_backlink_graph(zUuid, "<div class=\"section\">References</div>\n");
  @ <div class="section">Context</div>
  render_checkin_context(rid, 0, 0);
  @ <div class="section">Changes</div>
  @ <div class="sectionmenu">
  diffFlags = construct_diff_flags(diffType);
  zW = (diffFlags&DIFF_IGNORE_ALLWS)?"&w":"";
  if( diffType!=0 ){
    @ %z(chref("button","%R/%s/%T?diff=0",zPageHide,zName))\
    @ Hide&nbsp;Diffs</a>

  if( !is_a_version(rid) ){
    webpage_error("Artifact %s is not a check-in.", P(zParam));
    return 0;
  }
  return manifest_get(rid, CFTYPE_MANIFEST, 0);
}

#if 0 /* not used */
/*
** Output a description of a check-in
*/
static void checkin_description(int rid){
  Stmt q;
  db_prepare(&q,
    "SELECT datetime(mtime), coalesce(euser,user),"

    }
    @ date:
    hyperlink_to_date(zDate, ")");
    tag_private_status(rid);
  }
  db_finalize(&q);
}
#endif /* not used */


/*
** WEBPAGE: vdiff
** URL: /vdiff?from=TAG&to=TAG
**
** Show the difference between two check-ins identified by the from= and

  ManifestFile *pFileFrom, *pFileTo;
  const char *zBranch;
  const char *zFrom;
  const char *zTo;
  const char *zRe;
  const char *zW;
  const char *zGlob;
  char *zQuery;
  char *zMergeOrigin = 0;
  ReCompiled *pRe = 0;
  login_check_credentials();
  if( !g.perm.Read ){ login_needed(g.anon.Read); return; }
  login_anonymous_available();
  load_control();
  cookie_link_parameter("diff","diff","2");
  diffType = atoi(PD("diff","2"));
  cookie_render();
  zRe = P("regex");
  if( zRe ) re_compile(&pRe, zRe, 0);
  zBranch = P("branch");
  if( zBranch && zBranch[0]==0 ) zBranch = 0;
  if( zBranch ){
    zQuery = mprintf("branch=%T", zBranch);
    zMergeOrigin = mprintf("merge-in:%s", zBranch);
    cgi_replace_parameter("from", zMergeOrigin);
    cgi_replace_parameter("to", zBranch);
  }else{
    zQuery = mprintf("from=%T&to=%T",PD("from",""),PD("to",""));
  }
  pTo = vdiff_parse_manifest("to", &ridTo);
  if( pTo==0 ) return;
  pFrom = vdiff_parse_manifest("from", &ridFrom);
  if( pFrom==0 ) return;
  zGlob = P("glob");
  zFrom = P("from");
  zTo = P("to");
  if(zGlob && !*zGlob){
    zGlob = NULL;
  }
  diffFlags = construct_diff_flags(diffType);
  zW = (diffFlags&DIFF_IGNORE_ALLWS)?"&w":"";
  if( zBranch==0 ){
    style_submenu_element("Path", "%R/timeline?me=%T&you=%T", zFrom, zTo);
  }
  if( diffType!=0 ){
    style_submenu_element("Hide Diff", "%R/vdiff?%s&diff=0%s%T%s",
                          zQuery,
                          zGlob ? "&glob=" : "", zGlob ? zGlob : "", zW);
  }
  if( diffType!=2 ){
    style_submenu_element("Side-by-Side Diff",
                          "%R/vdiff?%s&diff=2%s%T%s",
                          zQuery,
                          zGlob ? "&glob=" : "", zGlob ? zGlob : "", zW);
  }
  if( diffType!=1 ) {
    style_submenu_element("Unified Diff",
                          "%R/vdiff?%s&diff=1%s%T%s",
                          zQuery,
                          zGlob ? "&glob=" : "", zGlob ? zGlob : "", zW);
  }
  if( zBranch==0 ){
    style_submenu_element("Invert",
                          "%R/vdiff?from=%T&to=%T&%s%T%s", zTo, zFrom,
                          zGlob ? "&glob=" : "", zGlob ? zGlob : "", zW);
  }
  if( zGlob ){
    style_submenu_element("Clear glob",
                          "%R/vdiff?%s&%s", zQuery, zW);
  }else{
    style_submenu_element("Patch", "%R/vpatch?from=%T&to=%T%s", zFrom, zTo, zW);
  }
  if( diffType!=0 ){
    style_submenu_checkbox("w", "Ignore Whitespace", 0, 0);
  }
  if( zBranch ){
    style_header("Changes On Branch %h", zBranch);
  }else{
    style_header("Check-in Differences");
  }
  if( P("nohdr")==0 ){
    if( zBranch ){
      char *zRealBranch = branch_of_rid(ridTo);
      char *zToUuid = rid_to_uuid(ridTo);
      char *zFromUuid = rid_to_uuid(ridFrom);
      @ <h2>Changes In Branch \
      @ %z(href("%R/timeline?r=%T",zRealBranch))%h(zRealBranch)</a>
      if( ridTo != symbolic_name_to_rid(zRealBranch,"ci") ){
        @ Through %z(href("%R/info/%!S",zToUuid))[%S(zToUuid)]</a>
      }
      @ Excluding Merge-Ins</h2>
      @ <p>This is equivalent to a diff from
      @ <span class='timelineSelected'>\
      @ %z(href("%R/info/%!S",zFromUuid))%S(zFromUuid)</a></span>
      @ to <span class='timelineSelected timelineSecondary'>\
      @ %z(href("%R/info/%!S",zToUuid))%S(zToUuid)</a></span></p>
    }else{
      @ <h2>Difference From <span class='timelineSelected'>\
      @ %z(href("%R/info/%h",zFrom))%h(zFrom)</a></span>
      @ To <span class='timelineSelected timelineSecondary'>\
      @ %z(href("%R/info/%h",zTo))%h(zTo)</a></span></h2>
    }
    render_checkin_context(ridFrom, ridTo, 0);

    if( pRe ){
      @ <p><b>Only differences that match regular expression "%h(zRe)"
      @ are shown.</b></p>
    }
    if( zGlob ){
      @ <p><b>Only files matching the glob "%h(zGlob)" are shown.</b></p>
    }
    @<hr /><p>
  }
  fossil_free(zQuery);

  manifest_file_rewind(pFrom);
  pFileFrom = manifest_file_next(pFrom, 0);
  manifest_file_rewind(pTo);
  pFileTo = manifest_file_next(pTo, 0);
  while( pFileFrom || pFileTo ){
    int cmp;

      if( zLn==0 || atoi(zLn)==0 ){
        style_submenu_checkbox("ln", "Line Numbers", 0, 0);
      }
      blob_to_utf8_no_bom(&content, 0);
      zMime = mimetype_from_content(&content);
      @ <blockquote>
      if( zMime==0 ){
        const char *z, *zFileName, *zExt;
        z = blob_str(&content);
        zFileName = db_text(0,
         "SELECT name FROM mlink, filename"
         " WHERE filename.fnid=mlink.fnid"
         "   AND mlink.fid=%d",
         rid);
        zExt = zFileName ? strrchr(zFileName, '.') : 0;
        if( zLn ){
          output_text_with_line_numbers(z, zLn);
        }else if( zExt && zExt[1] ){
          @ <pre>
          @ <code class="language-%s(zExt+1)">%h(z)</code>
          @ </pre>
        }else{
          @ <pre>
          @ %h(z)
          @ </pre>
        }
      }else if( strncmp(zMime, "image/", 6)==0 ){
        @ <p>(file is %d(blob_size(&content)) bytes of image data)</i></p>

    md5sum_blob(ctrl, &cksum);
    blob_appendf(ctrl, "Z %b\n", &cksum);
    if( fDryRun ){
      assert( g.isHTTP==0 ); /* Only print control artifact in console mode. */
      fossil_print("%s", blob_str(ctrl));
      blob_reset(ctrl);
    }else{
      db_begin_transaction();
      g.markPrivate = content_is_private(rid);
      nrid = content_put(ctrl);
      manifest_crosslink(nrid, ctrl, MC_PERMIT_HOOKS);
      db_end_transaction(0);
    }
    assert( blob_is_reset(ctrl) );
  }

     On large repos (e.g. fossil's) this operation is likely to take
     longer than the client timeout, which will cause it to fail (but
     it's sqlite3, so it'll fail gracefully).
  */
    db_close(1);
    db_open_repository(g.zRepositoryName);
    db_begin_transaction();
    rebuild_db(0, 0, 0);
    db_end_transaction(0);
    return NULL;
  }
}

/*

        " WHERE tagtype>0"
        "   AND tagid=(SELECT tagid FROM tag WHERE tagname='sym-%q')",
        zBranch)!=0 ){
    zOpt->rcErrMsg = "Branch already exists.";
    return FSL_JSON_E_RESOURCE_ALREADY_EXISTS;
  }

  db_begin_transaction();
  rootid = name_to_typed_rid(zBasis, "ci");
  if( rootid==0 ){
    zOpt->rcErrMsg = "Basis branch not found.";
    return FSL_JSON_E_RESOURCE_NOT_FOUND;
  }

  pParent = manifest_get(rootid, CFTYPE_MANIFEST, 0);

  zValue = json_find_option_cstr("value",NULL,NULL);
  if(!zValue && !fossil_has_json()){
    zValue = json_command_arg(5);
  }

  db_begin_transaction();
  tag_add_artifact(zPrefix, zName, zCheckin, zValue,
                   1+fPropagate,NULL/*DateOvrd*/,NULL/*UserOvrd*/);
  db_end_transaction(0);

  payV = cson_value_new_object();
  pay = cson_value_get_object(payV);
  cson_object_set(pay, "name", json_new_string(zName) );

                   "'checkin' parameter is missing.");
      return NULL;
    }
  }
  /* FIXME?: verify that the tag is currently active. We have no real
     error case unless we do that.
  */
  db_begin_transaction();
  tag_add_artifact(zPrefix, zName, zCheckin, NULL, 0, 0, 0);
  db_end_transaction(0);
  return NULL;
}


/*

                             p->RdWiki = p->WrWiki = p->NewWiki =
                             p->ApndWiki = p->Hyperlink = p->Clone =
                             p->NewTkt = p->Password = p->RdAddr =
                             p->TktFmt = p->Attach = p->ApndTkt =
                             p->ModWiki = p->ModTkt = p->Delete =
                             p->RdForum = p->WrForum = p->ModForum =
                             p->WrTForum = p->AdminForum =
                             p->EmailAlert = p->Announce = p->Debug = 1;

                             /* Fall thru into Read/Write */
      case 'i':   p->Read = p->Write = 1;                      break;
      case 'o':   p->Read = 1;                                 break;
      case 'z':   p->Zip = 1;                                  break;

      case 'd':   p->Delete = 1;                               break;
      case 'h':   p->Hyperlink = 1;                            break;

  }

  /* Create all the necessary CONFIG table entries on both the
  ** other repository and on our own repository.
  */
  zSelfProjCode = abbreviated_project_code(zSelfProjCode);
  zOtherProjCode = abbreviated_project_code(zOtherProjCode);
  db_begin_transaction();
  db_multi_exec(
    "DELETE FROM \"%w\".config WHERE name GLOB 'peer-*';"
    "INSERT INTO \"%w\".config(name,value) VALUES('peer-repo-%q',%Q);"
    "INSERT INTO \"%w\".config(name,value) "
    "  SELECT 'peer-name-%q', value FROM other.config"
    "   WHERE name='project-name';",
    zSelf,

  char Zip;              /* z: download zipped artifact via /zip URL */
  char Private;          /* x: can send and receive private content */
  char WrUnver;          /* y: can push unversioned content */
  char RdForum;          /* 2: Read forum posts */
  char WrForum;          /* 3: Create new forum posts */
  char WrTForum;         /* 4: Post to forums not subject to moderation */
  char ModForum;         /* 5: Moderate (approve or reject) forum posts */
  char AdminForum;       /* 6: Grant capability 4 to other users */
  char EmailAlert;       /* 7: Sign up for email notifications */
  char Announce;         /* A: Send announcements */
  char Debug;            /* D: show extra Fossil debugging features */
  /* These last two are included to block infinite recursion */
  char XReader;          /* u: Inherit all privileges of "reader" */
  char XDeveloper;       /* v: Inherit all privileges of "developer" */
};

      g.zRepositoryName = mprintf("%s", zRepo);
      file_simplify_name(g.zRepositoryName, -1, 0);
    }else{
      if( isDir==0 && fCreate ){
        const char *zPassword;
        db_create_repository(zRepo);
        db_open_repository(zRepo);
        db_begin_transaction();
        g.eHashPolicy = HPOLICY_SHA3;
        db_set_int("hash-policy", HPOLICY_SHA3, 0);
        db_initial_setup(0, "now", g.zLogin);
        db_end_transaction(0);
        fossil_print("project-id: %s\n", db_get("project-code", 0));
        fossil_print("server-id:  %s\n", db_get("server-code", 0));
        zPassword = db_text(0, "SELECT pw FROM user WHERE login=%Q", g.zLogin);

** liability, whether in contract, strict liability, or tort (including
** negligence or otherwise) arising in any way out of the use of this
** software, even if advised of the possibility of such damage.
**
** This program is distributed in the hope that it will be useful,
** but without any warranty; without even the implied warranty of
** merchantability or fitness for a particular purpose.

*/
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <memory.h>
#include <sys/stat.h>
#include <assert.h>

    }else if( type & PS_Private ){
      StringAppend(&str, "private:\n", 0);
      pDecl->extraType = PS_Private;
    }
  }
  StringAppend(&str, "  ", 0);
  zDecl = TokensToString(pFirst, pLast, ";\n", pClass, 2);
  if(strncmp(zDecl, pClass->zText, pClass->nText)==0){
    /* If member initializer list is found after a constructor,
    ** skip that part. */
    char * colon = strchr(zDecl, ':');
    if(colon!=0 && colon[1]!=0){
      *colon++ = ';';
      *colon++ = '\n';
      *colon = 0;
    }
  }
  StringAppend(&str, zDecl, 0);
  SafeFree(zDecl);
  pDecl->zExtra = StrDup(StringGet(&str), 0);
  StringReset(&str);
  return 0;
}

  }
  pName = FindDeclName(pFirst,pLast);
  if( pName==0 ){
    fprintf(stderr,"%s:%d: Malformed function or procedure definition.\n",
      zFilename, pFirst->nLine);
    return 1;
  }
  if( strncmp(pName->zText,"main",pName->nText)==0 ){
    /* skip main() decl. */
    return 0;
  }
  /*
  ** At this point we've isolated a procedure declaration between pFirst
  ** and pLast with the name pName.
  */
#ifdef DEBUG
  if( debugMask & PARSER ){
    printf("**** Found routine: %.*s on line %d...\n", pName->nText,

        zNew[j] = malloc( n + 1 );
        if( zNew[j] ){
          strcpy( zNew[j], zBuf );
        }
      }
    }
  }
  fclose(in);
  newArgc = argc + nNew - 1;
  for(i=0; i<=index; i++){
    zNew[i] = argv[i];
  }
  for(i=nNew + index + 1; i<newArgc; i++){
    zNew[i] = argv[i + 1 - nNew];
  }

};

/*
** Return a pointer to the next token.  The token is zero-terminated.
** Return NULL if there are no more tokens on the current line.
*/
static char *next_token(ManifestText *p, int *pLen){

  char *zStart;
  int n;
  if( p->atEol ) return 0;
  zStart = p->z;
  n = strcspn(p->z, " \n");
  p->atEol = p->z[n]=='\n';
  p->z[n] = 0;
  p->z += n+1;

  if( pLen ) *pLen = n;
  return zStart;
}

/*
** Return the card-type for the next card.  Or, return 0 if there are no
** more cards or if we are not at the end of the current card.
*/

        int nTarget = 0, nSrc = 0;
        zName = next_token(&x, 0);
        zTarget = next_token(&x, &nTarget);
        zSrc = next_token(&x, &nSrc);
        if( zName==0 || zTarget==0 ) goto manifest_syntax_error;
        if( p->zAttachName!=0 ) goto manifest_syntax_error;
        defossilize(zName);
        if( !file_is_simple_pathname_nonstrict(zName) ){
          SYNTAX("invalid filename on A-card");
        }
        defossilize(zTarget);
        if( !hname_validate(zTarget,nTarget)
           && !wiki_name_is_wellformed((const unsigned char *)zTarget) ){
          SYNTAX("invalid target on A-card");
        }

      ** other control file.  The filename and old-name are fossil-encoded.
      */
      case 'F': {
        char *zName, *zPerm, *zPriorName;
        zName = next_token(&x,0);
        if( zName==0 ) SYNTAX("missing filename on F-card");
        defossilize(zName);
        if( !file_is_simple_pathname_nonstrict(zName) ){
          SYNTAX("F-card filename is not a simple path");
        }
        zUuid = next_token(&x, &sz);
        if( p->zBaseline==0 || zUuid!=0 ){
          if( !hname_validate(zUuid,sz) ){
            SYNTAX("F-card hash invalid");
          }
        }
        zPerm = next_token(&x,0);
        zPriorName = next_token(&x,0);
        if( zPriorName ){
          defossilize(zPriorName);
          if( !file_is_simple_pathname_nonstrict(zPriorName) ){
            SYNTAX("F-card old filename is not a simple path");
          }
        }
        if( p->nFile>=p->nFileAlloc ){
          p->nFileAlloc = p->nFileAlloc*2 + 10;
          p->aFile = fossil_realloc(p->aFile,
                                    p->nFileAlloc*sizeof(p->aFile[0]) );

    manifest_destroy(p);
  }
}

/*
** COMMAND: test-parse-all-blobs
**
** Usage: %fossil test-parse-all-blobs [--limit N]
**
** Parse all entries in the BLOB table that are believed to be non-data
** artifacts and report any errors.  Run this test command on historical
** repositories after making any changes to the manifest_parse()
** implementation to confirm that the changes did not break anything.
**
** If the --limit N argument is given, parse no more than N blobs
*/
void manifest_test_parse_all_blobs_cmd(void){
  Manifest *p;
  Blob err;
  Stmt q;
  int nTest = 0;
  int nErr = 0;
  int N = 1000000000;
  const char *z;
  db_find_and_open_repository(0, 0);
  z = find_option("limit", 0, 1);
  if( z ) N = atoi(z);
  verify_all_options();
  db_prepare(&q, "SELECT DISTINCT objid FROM EVENT");
  while( (N--)>0 && db_step(&q)==SQLITE_ROW ){
    int id = db_column_int(&q,0);
    fossil_print("Checking %d       \r", id);
    nTest++;
    fflush(stdout);
    blob_init(&err, 0, 0);
    p = manifest_get(id, CFTYPE_ANY, &err);
    if( p==0 ){

** processing that must be deferred until all artifacts have been
** seen at least once.  The deferred processing is accomplished
** by the call to manifest_crosslink_end().
*/
void manifest_crosslink_begin(void){
  assert( manifest_crosslink_busy==0 );
  manifest_crosslink_busy = 1;
  db_begin_transaction();
  db_multi_exec(
     "CREATE TEMP TABLE pending_tkt(uuid TEXT UNIQUE);"
     "CREATE TEMP TABLE time_fudge("
     "  mid INTEGER PRIMARY KEY,"    /* The rid of a manifest */
     "  m1 REAL,"                    /* The timestamp on mid */
     "  cid INTEGER,"                /* A child or mid */
     "  m2 REAL"                     /* Timestamp on the child */

    assert( blob_is_reset(pContent) );
    if( (flags & MC_NO_ERRORS)==0 ){
      fossil_error(1, "cannot fetch baseline for manifest [%S]",
                   db_text(0, "SELECT uuid FROM blob WHERE rid=%d",rid));
    }
    return 0;
  }
  db_begin_transaction();
  if( p->type==CFTYPE_MANIFEST ){
    if( permitHooks ){
      zScript = xfer_commit_code();
      zUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", rid);
    }
    if( p->nCherrypick && db_table_exists("repository","cherrypick") ){
      int i;

  }
  if( verboseFlag ){
    print_checkin_description(mid, 12,
              integrateFlag ? "integrate:" : "merge-from:");
    print_checkin_description(pid, 12, "baseline:");
  }
  vfile_check_signature(vid, CKSIG_ENOTFILE);
  db_begin_transaction();
  if( !dryRunFlag ) undo_begin();
  if( load_vfile_from_rid(mid) && !forceMissingFlag ){
    fossil_fatal("missing content, unable to merge");
  }
  if( load_vfile_from_rid(pid) && !forceMissingFlag ){
    fossil_fatal("missing content, unable to merge");
  }

*/
void moderation_disapprove(int objid){
  Stmt q;
  char *zTktid;
  int attachRid = 0;
  int rid;
  if( !moderation_pending(objid) ) return;
  db_begin_transaction();
  rid = objid;
  while( rid && content_is_private(rid) ){
    db_prepare(&q, "SELECT rid FROM delta WHERE srcid=%d", rid);
    while( db_step(&q)==SQLITE_ROW ){
      int ridUser = db_column_int(&q, 0);
      content_undelta(ridUser);
    }

}

/*
** Approve an object held for moderation.
*/
void moderation_approve(int rid){
  if( !moderation_pending(rid) ) return;
  db_begin_transaction();
  db_multi_exec(
    "DELETE FROM private WHERE rid=%d;"
    "INSERT OR IGNORE INTO unclustered VALUES(%d);"
    "INSERT OR IGNORE INTO unsent VALUES(%d);",
    rid, rid, rid
  );
  db_multi_exec("DELETE FROM modreq WHERE objid=%d", rid);

  if( moderation_table_exists() ){
    blob_init(&sql, timeline_query_for_www(), -1);
    blob_append_sql(&sql,
        " AND event.objid IN (SELECT objid FROM modreq)"
        " ORDER BY event.mtime DESC"
    );
    db_prepare(&q, "%s", blob_sql_text(&sql));
    www_print_timeline(&q, 0, 0, 0, 0, 0, 0, 0);
    db_finalize(&q);
  }
  style_footer();
}

/*
** Disapproves any entries in the modreq table which belong to any

  /* It looks like this may be a date.  Return it with punctuation added. */
  return zEDate;
}

/*
** Return the RID that is the "root" of the branch that contains
** check-in "rid".  Details depending on eType:
**
**    eType==0    The check-in of the parent branch off of which
**                the branch containing RID originally diverged.
**
**    eType==1    The first check-in of the branch that contains RID.
**
**    eType==2    The youngest ancestor of RID that is on the branch
**                from which the branch containing RID diverged.
*/
int start_of_branch(int rid, int eType){
  Stmt q;
  int rc;
  int ans = rid;
  char *zBr = branch_of_rid(rid);




  db_prepare(&q,
    "SELECT pid, EXISTS(SELECT 1 FROM tagxref"
                       " WHERE tagid=%d AND tagtype>0"
                       "   AND value=%Q AND rid=plink.pid)"
    "  FROM plink"
    " WHERE cid=:cid AND isprim",
    TAG_BRANCH, zBr
  );
  fossil_free(zBr);
  do{
    db_reset(&q);
    db_bind_int(&q, ":cid", ans);
    rc = db_step(&q);
    if( rc!=SQLITE_ROW ) break;
    if( eType==1 && db_column_int(&q,1)==0 ) break;
    ans = db_column_int(&q, 0);
  }while( db_column_int(&q, 1)==1 && ans>0 );
  db_finalize(&q);
  if( eType==2 && ans>0 ){
    zBr = branch_of_rid(ans);
    ans = compute_youngest_ancestor_in_branch(rid, zBr);
    fossil_free(zBr);
  }
  return ans;
}

/*
** Convert a symbolic name into a RID.  Acceptable forms:
**
**   *  artifact hash (optionally enclosed in [...])
**   *  4-character or larger prefix of a artifact

** Return the RID of the matching artifact.  Or return 0 if the name does not
** match any known object.  Or return -1 if the name is ambiguous.
**
** The zType parameter specifies the type of artifact: ci, t, w, e, g, f.
** If zType is NULL or "" or "*" then any type of artifact will serve.
** If zType is "br" then find the first check-in of the named branch
** rather than the last.
**
** zType is "ci" in most use cases since we are usually searching for
** a check-in.
**
** Note that the input zTag for types "t" and "e" is the artifact hash of
** the ticket-change or technote-change artifact, not the randomly generated
** hexadecimal identifier assigned to tickets and events.  Those identifiers
** live in a separate namespace.
*/
int symbolic_name_to_rid(const char *zTag, const char *zType){
  int vid;
  int rid = 0;
  int nTag;
  int i;
  int startOfBranch = 0;
  const char *zXTag;     /* zTag with optional [...] removed */
  int nXTag;             /* Size of zXTag */
  const char *zDate;     /* Expanded date-time string */
  const char *zTagPrefix = "sym";

  if( zType==0 || zType[0]==0 ){
    zType = "*";
  }else if( zType[0]=='b' ){
    zType = "ci";
    startOfBranch = 1;
  }

       "   AND event.type GLOB '%q'",
       &zTag[4], zType
    );
    if( startOfBranch ) rid = start_of_branch(rid,1);
    return rid;
  }

  /* root:BR -> The origin of the branch named BR */
  if( strncmp(zTag, "root:", 5)==0 ){
    rid = symbolic_name_to_rid(zTag+5, zType);
    return start_of_branch(rid, 0);
  }
  /* rootx:BR -> Most recent merge-in for the branch name BR */
  if( strncmp(zTag, "merge-in:", 9)==0 ){
    rid = symbolic_name_to_rid(zTag+9, zType);
    return start_of_branch(rid, 2);
  }

  /* symbolic-name ":" date-time */
  nTag = strlen(zTag);
  for(i=0; i<nTag-10 && zTag[i]!=':'; i++){}
  if( zTag[i]==':' && fossil_isdate(&zTag[i+1]) ){
    char *zDate = mprintf("%s", &zTag[i+1]);

      rid = db_column_int(&q, 0);
      if( db_step(&q)==SQLITE_ROW ) rid = -1;
    }
    db_finalize(&q);
    if( rid ) return rid;
  }

  if( zType[0]=='w' ){
    zTagPrefix = "wiki";
  }
  /* Symbolic name */
  rid = db_int(0,
    "SELECT event.objid, max(event.mtime)"
    "  FROM tag, tagxref, event"
    " WHERE tag.tagname='%q-%q' "
    "   AND tagxref.tagid=tag.tagid AND tagxref.tagtype>0 "
    "   AND event.objid=tagxref.rid "
    "   AND event.type GLOB '%q'",
    zTagPrefix, zTag, zType
  );

  if( rid>0 ){
    if( startOfBranch ) rid = start_of_branch(rid,1);
    return rid;
  }

  /* Pure numeric date/time */
  zDate = fossil_expand_datetime(zTag, 0);

  }
  return c;
}

/*
** COMMAND: test-name-to-id
**
** Usage:  %fossil test-name-to-id [--count N] NAME
**
** Convert a NAME to a full artifact ID.  Repeat the conversion N
** times (for timing purposes) if the --count option is given.
*/
void test_name_to_id(void){
  int i;
  int n = 0;
  Blob name;
  db_must_be_within_tree();
  for(i=2; i<g.argc; i++){
    if( strcmp(g.argv[i],"--count")==0 && i+1<g.argc ){
      i++;
      n = atoi(g.argv[i]);
      continue;
    }
    do{
      blob_init(&name, g.argv[i], -1);
      fossil_print("%s -> ", g.argv[i]);
      if( name_to_uuid(&name, 1, "*") ){
        fossil_print("ERROR: %s\n", g.zErrMsg);
        fossil_error_reset();
      }else{
        fossil_print("%s\n", blob_buffer(&name));
      }
      blob_reset(&name);
    }while( n-- > 0 );
  }
}

/*
** Convert a name to a rid.  If the name can be any of the various forms
** accepted:
**

  int bTest = find_option("test",0,0)!=0;  /* Undocumented --test option */
  int bExclusive = find_option("exclusive",0,0)!=0;  /* undocumented */
  int i;

  db_find_and_open_repository(0,0);
  verify_all_options();
  if( g.argc<3 ) usage("?--only? TAGS...");
  db_begin_transaction();
  db_multi_exec("CREATE TEMP TABLE ok(rid INTEGER PRIMARY KEY);");
  for(i=2; i<g.argc; i++){
    int rid = name_to_rid(g.argv[i]);
    if( db_exists("SELECT 1 FROM tagxref"
                  " WHERE rid=%d AND tagid=%d"
                  "   AND tagtype>0 AND value=%Q",
                  rid,TAG_BRANCH,g.argv[i]) ){

  unsigned purgeFlags     /* zero or more PURGE_* flags */
){
  int peid = 0;                 /* New purgeevent ID */
  Stmt q;                       /* General-use prepared statement */
  char *z;

  assert( g.repositoryOpen );   /* Main database must already be open */
  db_begin_transaction();
  z = sqlite3_mprintf("IN \"%w\"", zTab);
  describe_artifacts(z);
  sqlite3_free(z);
  describe_artifacts_to_stdout(0, 0);

  /* The explain-only flags causes this routine to list the artifacts
  ** that would have been purged but to not actually make any changes

** not in the set.
**
** The "fossil publish" command with the (undocumented) --test and
** --exclusive options can be used for interactiving testing of this
** function.
*/
void find_checkin_associates(const char *zTab, int bExclusive){
  db_begin_transaction();

  /* Compute the set of files that need to be added to zTab */
  db_multi_exec("CREATE TEMP TABLE \"%w_files\"(fid INTEGER PRIMARY KEY)",zTab);
  db_multi_exec(
    "INSERT OR IGNORE INTO \"%w_files\"(fid)"
    "  SELECT fid FROM mlink WHERE fid!=0 AND mid IN \"%w\"",
    zTab, zTab

  db_find_and_open_repository(0,0);
  n = (int)strlen(zSubcmd);
  if( find_option("explain",0,0)!=0 || find_option("dry-run",0,0)!=0 ){
    purgeFlags |= PURGE_EXPLAIN_ONLY;
  }
  if( strncmp(zSubcmd, "artifacts", n)==0 ){
    verify_all_options();
    db_begin_transaction();
    db_multi_exec("CREATE TEMP TABLE ok(rid INTEGER PRIMARY KEY)");
    for(i=3; i<g.argc; i++){
      int r = name_to_typed_rid(g.argv[i], "");
      db_multi_exec("INSERT OR IGNORE INTO ok(rid) VALUES(%d);", r);
    }
    describe_artifacts_to_stdout("IN ok", 0);
    purge_artifact_list("ok", "", purgeFlags);

    }
  }else if( strncmp(zSubcmd, "checkins", n)==0 ){
    int vid;
    if( find_option("explain",0,0)!=0 || find_option("dry-run",0,0)!=0 ){
      purgeFlags |= PURGE_EXPLAIN_ONLY;
    }
    verify_all_options();
    db_begin_transaction();
    if( g.argc<=3 ) usage("checkins TAGS... [OPTIONS]");
    db_multi_exec("CREATE TEMP TABLE ok(rid INTEGER PRIMARY KEY)");
    for(i=3; i<g.argc; i++){
      int r = name_to_typed_rid(g.argv[i], "br");
      compute_descendants(r, 1000000000);
    }
    vid = db_lget_int("checkout",0);
    if( db_exists("SELECT 1 FROM ok WHERE rid=%d",vid) ){
      fossil_fatal("cannot purge the current checkout");
    }
    find_checkin_associates("ok", 1);
    purge_artifact_list("ok", "", purgeFlags);
    db_end_transaction(0);
  }else if( strncmp(zSubcmd, "files", n)==0 ){
    verify_all_options();
    db_begin_transaction();
    db_multi_exec("CREATE TEMP TABLE ok(rid INTEGER PRIMARY KEY)");
    for(i=3; i<g.argc; i++){
      db_multi_exec(
         "INSERT OR IGNORE INTO ok(rid) "
         "  SELECT fid FROM mlink, filename"
         "   WHERE mlink.fnid=filename.fnid"
         "     AND (filename.name=%Q OR filename.name GLOB '%q/*')",

         "Obliterating the graveyard will permanently delete information.\n"
         "Changes cannot be undone.  Continue (y/N)? ", &ans);
      cReply = blob_str(&ans)[0];
      if( cReply!='y' && cReply!='Y' ){
        fossil_exit(1);
      }
    }
    db_begin_transaction();
    for(i=3; i<g.argc; i++){
      int peid = atoi(g.argv[i]);
      if( !db_exists("SELECT 1 FROM purgeevent WHERE peid=%d",peid) ){
        fossil_fatal("no such purge event: %s", g.argv[i]);
      }
      db_multi_exec(
        "DELETE FROM purgeevent WHERE peid=%d;"
        "DELETE FROM purgeitem WHERE peid=%d;",
        peid, peid
      );
    }
    db_end_transaction(0);
  }else if( strncmp(zSubcmd, "tickets", n)==0 ){
    fossil_fatal("not yet implemented....");
  }else if( strncmp(zSubcmd, "undo", n)==0 ){
    int peid;
    if( g.argc!=4 ) usage("undo ID");
    peid = atoi(g.argv[3]);
    if( (purgeFlags & PURGE_EXPLAIN_ONLY)==0 ){
      db_begin_transaction();
      db_multi_exec(
        "CREATE TEMP TABLE ix("
        "  piid INTEGER PRIMARY KEY,"
        "  srcid INTEGER"
        ");"
        "CREATE INDEX ixsrcid ON ix(srcid);"
        "INSERT INTO ix(piid,srcid) "

  /* Verify that the MLINK table has the newer columns added by the
  ** 2015-01-24 schema change.  Create them if necessary.  This code
  ** can be removed in the future, once all users have upgraded to the
  ** 2015-01-24 or later schema.
  */
  if( !db_table_has_column("repository","mlink","isaux") ){
    db_begin_transaction();
    db_multi_exec(
      "ALTER TABLE repository.mlink ADD COLUMN pmid INTEGER DEFAULT 0;"
      "ALTER TABLE repository.mlink ADD COLUMN isaux BOOLEAN DEFAULT 0;"
    );
    db_end_transaction(0);
  }

*/
void extra_deltification(void){
  Stmt q;
  int aPrev[N_NEIGHBOR];
  int nPrev;
  int rid;
  int prevfnid, fnid;
  db_begin_transaction();

  /* Look for manifests that have not been deltaed and try to make them
  ** children of one of the 5 chronologically subsequent check-ins
  */
  db_prepare(&q,
     "SELECT rid FROM event, blob"
     " WHERE blob.rid=event.objid"

  if( optIfNeeded && fossil_strcmp(db_get("aux-schema",""),AUX_SCHEMA_MAX)==0 ){
    return;
  }

  /* We should be done with options.. */
  verify_all_options();

  db_begin_transaction();
  if( !compressOnlyFlag ){
    search_drop_index();
    ttyOutput = 1;
    errCnt = rebuild_db(randomizeFlag, 1, doClustering);
    reconstruct_private_table();
  }
  db_multi_exec(

** Change the project-code and make other changes in order to prevent
** the repository from ever again pushing or pulling to other
** repositories.  Used to create a "test" repository for development
** testing by cloning a working project repository.
*/
void test_detach_cmd(void){
  db_find_and_open_repository(0, 2);
  db_begin_transaction();
  db_multi_exec(
    "DELETE FROM config WHERE name='last-sync-url';"
    "UPDATE config SET value=lower(hex(randomblob(20)))"
    " WHERE name='project-code';"
    "UPDATE config SET value='detached-' || value"
    " WHERE name='project-name' AND value NOT GLOB 'detached-*';"
  );

    db_find_and_open_repository(0, 0);
    if( g.argc!=2 ){
      usage("?REPOSITORY-FILENAME?");
    }
    db_close(1);
    db_open_repository(g.zRepositoryName);
  }
  db_begin_transaction();
  create_cluster();
  db_end_transaction(0);
}

/*
** COMMAND: test-clusters
**

         "Scrubbing the repository will permanently delete information.\n"
         "Changes cannot be undone.  Continue (y/N)? ", &ans);
    cReply = blob_str(&ans)[0];
    if( cReply!='y' && cReply!='Y' ){
      fossil_exit(1);
    }
  }
  db_begin_transaction();
  if( privateOnly || bVerily ){
    bNeedRebuild = db_exists("SELECT 1 FROM private");
    delete_private_content();
  }
  if( !privateOnly ){
    db_multi_exec(
      "UPDATE user SET pw='';"

  db_create_repository(g.argv[2]);
  db_open_repository(g.argv[2]);

  /* We should be done with options.. */
  verify_all_options();

  db_open_config(0, 0);
  db_begin_transaction();
  db_initial_setup(0, 0, 0);

  fossil_print("Reading files from directory \"%s\"...\n", g.argv[3]);
  recon_read_dir(g.argv[3]);
  fossil_print("\nBuilding the Fossil repository...\n");

  rebuild_db(0, 1, 1);

  if( iCmd==1 ){
    if( search_index_exists() ) iAction = 2;
  }
  if( iCmd==2 ){
    if( g.argc<3 ) usage("index (on|off)");
    iAction = 1 + is_truth(g.argv[3]);
  }
  db_begin_transaction();

  /* Adjust search settings */
  if( iCmd==3 || iCmd==4 ){
    const char *zCtrl;
    if( g.argc<4 ) usage(mprintf("%s STRING",zSubCmd));
    zCtrl = g.argv[3];
    for(j=0; j<count(aSetng); j++){

  login_check_credentials();
  if( !g.perm.Setup ){
    login_needed(0);
    return;
  }

  style_header("Access Control Settings");
  db_begin_transaction();
  @ <form action="%s(g.zTop)/setup_access" method="post"><div>
  login_insert_csrf_secret();
  @ <input type="submit"  name="submit" value="Apply Changes" /></p>
  @ <hr />
  multiple_choice_attribute("Redirect to HTTPS",
     "redirect-to-https", "redirhttps", "0",
     count(azRedirectOpts)/2, azRedirectOpts);

  login_check_credentials();
  if( !g.perm.Admin ){
    login_needed(0);
    return;
  }

  style_header("Timeline Display Preferences");
  db_begin_transaction();
  @ <form action="%s(g.zTop)/setup_timeline" method="post"><div>
  login_insert_csrf_secret();
  @ <p><input type="submit"  name="submit" value="Apply Changes" /></p>

  @ <hr />
  onoff_attribute("Allow block-markup in timeline",
                  "timeline-block-markup", "tbm", 0, 0);

  style_header("Settings");
  if(!g.repositoryOpen){
    /* Provide read-only access to versioned settings,
       but only if no repo file was explicitly provided. */
    db_open_local(0);
  }
  db_begin_transaction();
  @ <p>Settings marked with (v) are "versionable" and will be overridden
  @ by the contents of managed files named
  @ "<tt>.fossil-settings/</tt><i>SETTING-NAME</i>".
  @ If the file for a versionable setting exists, the value cannot be
  @ changed on this screen.</p><hr /><p>
  @
  @ <form action="%s(g.zTop)/setup_settings" method="post"><div>

  login_check_credentials();
  if( !g.perm.Setup ){
    login_needed(0);
    return;
  }

  style_header("WWW Configuration");
  db_begin_transaction();
  @ <form action="%s(g.zTop)/setup_config" method="post"><div>
  login_insert_csrf_secret();
  @ <input type="submit"  name="submit" value="Apply Changes" /></p>
  @ <hr />
  entry_attribute("Project Name", 60, "project-name", "pn", "", 0);
  @ <p>A brief project name so visitors know what this site is about.
  @ The project name will also be used as the RSS feed title.

  login_check_credentials();
  if( !g.perm.Setup ){
    login_needed(0);
    return;
  }

  style_header("Wiki Configuration");
  db_begin_transaction();
  @ <form action="%s(g.zTop)/setup_wiki" method="post"><div>
  login_insert_csrf_secret();
  @ <input type="submit"  name="submit" value="Apply Changes" /></p>
  @ <hr />
  onoff_attribute("Associate Wiki Pages With Branches, Tags, or Checkins",
                  "wiki-about", "wiki-about", 1, 0);
  @ <p>

  login_check_credentials();
  if( !g.perm.Admin ){
    login_needed(0);
    return;
  }

  style_header("Moderator For Wiki And Tickets");
  db_begin_transaction();
  @ <form action="%R/setup_modreq" method="post"><div>
  login_insert_csrf_secret();
  @ <hr />
  onoff_attribute("Moderate ticket changes",
     "modreq-tkt", "modreq-tkt", 0, 0);
  @ <p>When enabled, any change to tickets is subject to the approval
  @ by a ticket moderator - a user with the "q" or Mod-Tkt privilege.

*/
void setup_adunit(void){
  login_check_credentials();
  if( !g.perm.Admin ){
    login_needed(0);
    return;
  }
  db_begin_transaction();
  if( P("clear")!=0 && cgi_csrf_safe(1) ){
    db_multi_exec("DELETE FROM config WHERE name GLOB 'adunit*'");
    cgi_replace_parameter("adunit","");
  }

  style_header("Edit Ad Unit");
  @ <form action="%s(g.zTop)/setup_adunit" method="post"><div>

    zBgMime = PD("bgim:mimetype","image/gif");
  }
  login_check_credentials();
  if( !g.perm.Admin ){
    login_needed(0);
    return;
  }
  db_begin_transaction();
  if( !cgi_csrf_safe(1) ){
    /* Allow no state changes if not safe from CSRF */
  }else if( P("setlogo")!=0 && zLogoMime && zLogoMime[0] && szLogoImg>0 ){
    Blob img;
    Stmt ins;
    blob_init(&img, aLogoImg, szLogoImg);
    db_prepare(&ins,

  f = fopen(zTempFile, bBin ? "wb" : "w");
  if( f==0 ){
    sqlite3_result_error(context, "edit() cannot open temp file", -1);
    goto edit_func_end;
  }
  sz = sqlite3_value_bytes(argv[0]);
  if( bBin ){
    x = fwrite(sqlite3_value_blob(argv[0]), 1, (size_t)sz, f);
  }else{
    const char *z = (const char*)sqlite3_value_text(argv[0]);
    /* Remember whether or not the value originally contained \r\n */
    if( z && strstr(z,"\r\n")!=0 ) hasCRNL = 1;
    x = fwrite(sqlite3_value_text(argv[0]), 1, (size_t)sz, f);
  }
  fclose(f);
  f = 0;
  if( x!=sz ){
    sqlite3_result_error(context, "edit() could not write the whole file", -1);
    goto edit_func_end;
  }

    sqlite3_result_error(context,
      "edit() cannot reopen temp file after edit", -1);
    goto edit_func_end;
  }
  fseek(f, 0, SEEK_END);
  sz = ftell(f);
  rewind(f);
  p = sqlite3_malloc64( sz+1 );
  if( p==0 ){
    sqlite3_result_error_nomem(context);
    goto edit_func_end;
  }
  x = fread(p, 1, (size_t)sz, f);
  fclose(f);
  f = 0;
  if( x!=sz ){
    sqlite3_result_error(context, "could not read back the whole file", -1);
    goto edit_func_end;
  }
  if( bBin ){

static void eqp_render_level(ShellState *p, int iEqpId){
  EQPGraphRow *pRow, *pNext;
  int n = strlen30(p->sGraph.zPrefix);
  char *z;
  for(pRow = eqp_next_row(p, iEqpId, 0); pRow; pRow = pNext){
    pNext = eqp_next_row(p, iEqpId, pRow);
    z = pRow->zText;
    utf8_printf(p->out, "%s%s%s\n", p->sGraph.zPrefix,
                pNext ? "|--" : "`--", z);
    if( n<(int)sizeof(p->sGraph.zPrefix)-7 ){
      memcpy(&p->sGraph.zPrefix[n], pNext ? "|  " : "   ", 4);
      eqp_render_level(p, pRow->iEqpId);
      p->sGraph.zPrefix[n] = 0;
    }
  }
}

          j--;
        }
        z[j++] = c;
      }
      while( j>0 && IsSpace(z[j-1]) ){ j--; }
      z[j] = 0;
      if( strlen30(z)>=79 ){
        for(i=j=0; (c = z[i])!=0; i++){ /* Copy from z[i] back to z[j] */
          if( c==cEnd ){
            cEnd = 0;
          }else if( c=='"' || c=='\'' || c=='`' ){
            cEnd = c;
          }else if( c=='[' ){
            cEnd = ']';
          }else if( c=='-' && z[i+1]=='-' ){

    raw_printf(pArg->out, "Fullscan Steps:                      %d\n", iCur);
    iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_SORT, bReset);
    raw_printf(pArg->out, "Sort Operations:                     %d\n", iCur);
    iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_AUTOINDEX,bReset);
    raw_printf(pArg->out, "Autoindex Inserts:                   %d\n", iCur);
    iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_VM_STEP, bReset);
    raw_printf(pArg->out, "Virtual Machine Steps:               %d\n", iCur);
    iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_REPREPARE,bReset);
    raw_printf(pArg->out, "Reprepare operations:                %d\n", iCur);
    iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_RUN, bReset);
    raw_printf(pArg->out, "Number of times run:                 %d\n", iCur);
    iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_MEMUSED, bReset);
    raw_printf(pArg->out, "Memory used by prepared stmt:        %d\n", iCur);
  }

** start of the description of what that command does.
*/
static const char *(azHelp[]) = {
#if defined(SQLITE_HAVE_ZLIB) && !defined(SQLITE_OMIT_VIRTUALTABLE)
  ".archive ...             Manage SQL archives",
  "   Each command must have exactly one of the following options:",
  "     -c, --create               Create a new archive",
  "     -u, --update               Add or update files with changed mtime",
  "     -i, --insert               Like -u but always add even if unchanged",
  "     -t, --list                 List contents of archive",
  "     -x, --extract              Extract files from archive",
  "   Optional arguments:",
  "     -v, --verbose              Print each filename as it is processed",
  "     -f FILE, --file FILE       Use archive FILE (default is current db)",
  "     -a FILE, --append FILE     Open FILE using the apndvfs VFS",
  "     -C DIR, --directory DIR    Read/extract files from directory DIR",
  "     -n, --dryrun               Show the SQL that would have occurred",
  "   Examples:",
  "     .ar -cf ARCHIVE foo bar  # Create ARCHIVE from files foo and bar",
  "     .ar -tf ARCHIVE          # List members of ARCHIVE",
  "     .ar -xvf ARCHIVE         # Verbosely extract files from ARCHIVE",
  "   See also:",
  "      http://sqlite.org/cli.html#sqlar_archive_support",
#endif
#ifndef SQLITE_OMIT_AUTHORIZATION
  ".auth ON|OFF             Show authorizer callbacks",
#endif
  ".backup ?DB? FILE        Backup DB (default \"main\") to FILE",
  "       --append            Use the appendvfs",
  "       --async             Write to FILE without journal and fsync()",
  ".bail on|off             Stop after hitting an error.  Default OFF",
  ".binary on|off           Turn binary output on or off.  Default OFF",
  ".cd DIRECTORY            Change the working directory to DIRECTORY",
  ".changes on|off          Show number of rows changed by SQL",
  ".check GLOB              Fail if output since .testcase does not match",
  ".clone NEWDB             Clone data into NEWDB from the existing database",
  ".databases               List names and files of attached databases",
  ".dbconfig ?op? ?val?     List or change sqlite3_db_config() options",
  ".dbinfo ?DB?             Show status information about the database",
  ".dump ?TABLE? ...        Render all database content as SQL",
  "   Options:",
  "     --preserve-rowids      Include ROWID values in the output",
  "     --newlines             Allow unescaped newline characters in output",
  "   TABLE is a LIKE pattern for the tables to dump",
  ".echo on|off             Turn command echo on or off",
  ".eqp on|off|full|...     Enable or disable automatic EXPLAIN QUERY PLAN",
  "   Other Modes:",
#ifdef SQLITE_DEBUG
  "      test                  Show raw EXPLAIN QUERY PLAN output",
  "      trace                 Like \"full\" but enable \"PRAGMA vdbe_trace\"",
#endif
  "      trigger               Like \"full\" but also show trigger bytecode",
  ".excel                   Display the output of next command in spreadsheet",
  ".exit ?CODE?             Exit this program with return-code CODE",
  ".expert                  EXPERIMENTAL. Suggest indexes for queries",
/* Because explain mode comes on automatically now, the ".explain" mode
** is removed from the help screen. It is still supported for legacy, however */
/*".explain ?on|off|auto?   Turn EXPLAIN output mode on or off",*/
  ".filectrl CMD ...        Run various sqlite3_file_control() operations",
  "                           Run \".filectrl\" with no arguments for details",
  ".fullschema ?--indent?   Show schema and the content of sqlite_stat tables",
  ".headers on|off          Turn display of headers on or off",
  ".help ?-all? ?PATTERN?   Show help text for PATTERN",
  ".import FILE TABLE       Import data from FILE into TABLE",
#ifndef SQLITE_OMIT_TEST_CONTROL

  "       -e    Invoke system text editor",
  "       -x    Open in a spreadsheet",
  ".open ?OPTIONS? ?FILE?   Close existing database and reopen FILE",
  "     Options:",
  "        --append        Use appendvfs to append database to the end of FILE",
#ifdef SQLITE_ENABLE_DESERIALIZE
  "        --deserialize   Load into memory useing sqlite3_deserialize()",
  "        --hexdb         Load the output of \"dbtotxt\" as an in-memory db",
  "        --maxsize N     Maximum size for --hexdb or --deserialized database",
#endif
  "        --new           Initialize FILE to an empty database",
  "        --readonly      Open FILE readonly",
  "        --zip           FILE is a ZIP archive",
  ".output ?FILE?           Send output to FILE or stdout if FILE is omitted",
  "     If FILE begins with '|' then open it as a pipe.",
  ".parameter CMD ...       Manage SQL parameter bindings",
  "   clear                   Erase all bindings",
  "   init                    Initialize the TEMP table that holds bindings",
  "   list                    List the current parameter bindings",
  "   set PARAMETER VALUE     Given SQL parameter PARAMETER a value of VALUE",
  "                           PARAMETER should start with one of: $ : @ ?",
  "   unset PARAMETER         Remove PARAMETER from the binding table",
  ".print STRING...         Print literal STRING",
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
  ".progress N              Invoke progress handler after every N opcodes",
  "   --limit N                 Interrupt after N progress callbacks",
  "   --once                    Do no more than one progress interrupt",
  "   --quiet|-q                No output except at interrupts",
  "   --reset                   Reset the count for each input and interrupt",
#endif
  ".prompt MAIN CONTINUE    Replace the standard prompts",
  ".quit                    Exit this program",
  ".read FILE               Read input from FILE",
#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB)
  ".recover                 Recover as much data as possible from corrupt db.",
  "   --freelist-corrupt       Assume the freelist is corrupt",
  "   --recovery-db NAME       Store recovery metadata in database file NAME",
  "   --lost-and-found TABLE   Alternative name for the lost-and-found table",
#endif
  ".restore ?DB? FILE       Restore content of DB (default \"main\") from FILE",
  ".save FILE               Write in-memory database into FILE",
  ".scanstats on|off        Turn sqlite3_stmt_scanstatus() metrics on or off",
  ".schema ?PATTERN?        Show the CREATE statements matching PATTERN",
  "     Options:",
  "         --indent            Try to pretty-print the schema",

  "     patchset FILE            Write a patchset into FILE",
  "   If ?NAME? is omitted, the first defined session is used.",
#endif
  ".sha3sum ...             Compute a SHA3 hash of database content",
  "    Options:",
  "      --schema              Also hash the sqlite_master table",
  "      --sha3-224            Use the sha3-224 algorithm",
  "      --sha3-256            Use the sha3-256 algorithm (default)",
  "      --sha3-384            Use the sha3-384 algorithm",
  "      --sha3-512            Use the sha3-512 algorithm",
  "    Any other argument is a LIKE pattern for tables to hash",
#ifndef SQLITE_NOHAVE_SYSTEM
  ".shell CMD ARGS...       Run CMD ARGS... in a system shell",
#endif
  ".show                    Show the current values for various settings",

#endif
  "    --plain                 Show SQL as it is input",
  "    --stmt                  Trace statement execution (SQLITE_TRACE_STMT)",
  "    --profile               Profile statements (SQLITE_TRACE_PROFILE)",
  "    --row                   Trace each row (SQLITE_TRACE_ROW)",
  "    --close                 Trace connection close (SQLITE_TRACE_CLOSE)",
#endif /* SQLITE_OMIT_TRACE */
#ifdef SQLITE_DEBUG
  ".unmodule NAME ...       Unregister virtual table modules",
  "    --allexcept             Unregister everything except those named",
#endif
  ".vfsinfo ?AUX?           Information about the top-level VFS",
  ".vfslist                 List all available VFSes",
  ".vfsname ?AUX?           Print the name of the VFS stack",
  ".width NUM1 NUM2 ...     Set column widths for \"column\" mode",
  "     Negative values right-justify",
};

  }
  *pnData = 0;
  nLine++;
  if( fgets(zLine, sizeof(zLine), in)==0 ) goto readHexDb_error;
  rc = sscanf(zLine, "| size %d pagesize %d", &n, &pgsz);
  if( rc!=2 ) goto readHexDb_error;
  if( n<0 ) goto readHexDb_error;
  if( pgsz<512 || pgsz>65536 || (pgsz&(pgsz-1))!=0 ) goto readHexDb_error;
  n = (n+pgsz-1)&~(pgsz-1);  /* Round n up to the next multiple of pgsz */
  a = sqlite3_malloc( n ? n : 1 );
  if( a==0 ){
    utf8_printf(stderr, "Out of memory!\n");
    goto readHexDb_error;
  }
  memset(a, 0, n);
  if( pgsz<512 || pgsz>65536 || (pgsz & (pgsz-1))!=0 ){

    sqlite3_int64 iVal = ((sqlite3_int64)a[0]<<24)
                       + ((sqlite3_int64)a[1]<<16)
                       + ((sqlite3_int64)a[2]<< 8)
                       + ((sqlite3_int64)a[3]<< 0);
    sqlite3_result_int64(context, iVal);
  }
}

/*
** Scalar function "shell_idquote(X)" returns string X quoted as an identifier,
** using "..." with internal double-quote characters doubled.
*/
static void shellIdQuote(
  sqlite3_context *context, 
  int argc, 
  sqlite3_value **argv
){
  const char *zName = (const char*)sqlite3_value_text(argv[0]);
  UNUSED_PARAMETER(argc);
  if( zName ){
    char *z = sqlite3_mprintf("\"%w\"", zName);
    sqlite3_result_text(context, z, -1, sqlite3_free);
  }
}

/*
** Scalar function "shell_escape_crnl" used by the .recover command.
** The argument passed to this function is the output of built-in
** function quote(). If the first character of the input is "'", 
** indicating that the value passed to quote() was a text value,
** then this function searches the input for "\n" and "\r" characters

                            shellModuleSchema, 0, 0);
    sqlite3_create_function(p->db, "shell_putsnl", 1, SQLITE_UTF8, p,
                            shellPutsFunc, 0, 0);
    sqlite3_create_function(p->db, "shell_escape_crnl", 1, SQLITE_UTF8, 0,
                            shellEscapeCrnl, 0, 0);
    sqlite3_create_function(p->db, "shell_int32", 2, SQLITE_UTF8, 0,
                            shellInt32, 0, 0);
    sqlite3_create_function(p->db, "shell_idquote", 1, SQLITE_UTF8, 0,
                            shellIdQuote, 0, 0);
#ifndef SQLITE_NOHAVE_SYSTEM
    sqlite3_create_function(p->db, "edit", 1, SQLITE_UTF8, 0,
                            editFunc, 0, 0);
    sqlite3_create_function(p->db, "edit", 2, SQLITE_UTF8, 0,
                            editFunc, 0, 0);
#endif
    if( p->openMode==SHELL_OPEN_ZIPFILE ){

    }
    *pRc = rc;
  }
}
#endif /* !defined SQLITE_OMIT_VIRTUALTABLE */

#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB)
/******************************************************************************
** The ".archive" or ".ar" command.
*/
/*
** Structure representing a single ".ar" command.
*/
typedef struct ArCommand ArCommand;
struct ArCommand {

            }
            if( pOpt->bArg ){
              if( i<(n-1) ){
                zArg = &z[i+1];
                i = n;
              }else{
                if( iArg>=(nArg-1) ){
                  return arErrorMsg(pAr, "option requires an argument: %c",
                                    z[i]);
                }
                zArg = azArg[++iArg];
              }
            }
            if( arProcessSwitch(pAr, pOpt->eSwitch, zArg) ) return SQLITE_ERROR;
          }
        }else if( z[2]=='\0' ){

  return rc;
}

/*
** Implementation of ".ar" dot command.
*/
static int arDotCommand(
  ShellState *pState,          /* Current shell tool state */
  int fromCmdLine,             /* True if -A command-line option, not .ar cmd */
  char **azArg,                /* Array of arguments passed to dot command */
  int nArg                     /* Number of entries in azArg[] */
){
  ArCommand cmd;
  int rc;
  memset(&cmd, 0, sizeof(cmd));
  cmd.fromCmdLine = fromCmdLine;
  rc = arParseCommand(azArg, nArg, &cmd);
  if( rc==SQLITE_OK ){

    close_db(cmd.db);
  }
  sqlite3_free(cmd.zSrcTable);

  return rc;
}
/* End of the ".archive" or ".ar" command logic
*******************************************************************************/
#endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) */

#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB)
/*
** If (*pRc) is not SQLITE_OK when this function is called, it is a no-op.
** Otherwise, the SQL statement or statements in zSql are executed using
** database connection db and the error code written to *pRc before

  pTab = (RecoverTable*)shellMalloc(&rc, sizeof(RecoverTable));
  if( rc==SQLITE_OK ){
    int nSqlCol = 0;
    int bSqlIntkey = 0;
    sqlite3_stmt *pStmt = 0;
    
    rc = sqlite3_open("", &dbtmp);
    if( rc==SQLITE_OK ){
      sqlite3_create_function(dbtmp, "shell_idquote", 1, SQLITE_UTF8, 0,
                              shellIdQuote, 0, 0);
    }
    if( rc==SQLITE_OK ){
      rc = sqlite3_exec(dbtmp, "PRAGMA writable_schema = on", 0, 0, 0);
    }
    if( rc==SQLITE_OK ){
      rc = sqlite3_exec(dbtmp, zSql, 0, 0, 0);
      if( rc==SQLITE_ERROR ){
        rc = SQLITE_OK;

        );
        if( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pPkFinder) ){
          pTab->iPk = sqlite3_column_int(pPkFinder, 0);
          zPk = (const char*)sqlite3_column_text(pPkFinder, 1);
        }
      }

      pTab->zQuoted = shellMPrintf(&rc, "\"%w\"", zName);
      pTab->azlCol = (char**)shellMalloc(&rc, sizeof(char*) * (nSqlCol+1));
      pTab->nCol = nSqlCol;

      if( bIntkey ){
        pTab->azlCol[0] = shellMPrintf(&rc, "\"%w\"", zPk);
      }else{
        pTab->azlCol[0] = shellMPrintf(&rc, "");
      }
      i = 1;
      shellPreparePrintf(dbtmp, &rc, &pStmt, 
          "SELECT %Q || group_concat(shell_idquote(name), ', ') "
          "  FILTER (WHERE cid!=%d) OVER (ORDER BY %s cid) "
          "FROM pragma_table_info(%Q)", 
          bIntkey ? ", " : "", pTab->iPk, 
          bIntkey ? "" : "(CASE WHEN pk=0 THEN 1000000 ELSE pk END), ",
          zName
      );
      while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){

      zTab = shellMPrintf(pRc, "%s_%d", zLostAndFound, iTab++);
      sqlite3_bind_text(pTest, 1, zTab, -1, SQLITE_TRANSIENT);
    }
    shellFinalize(pRc, pTest);

    pTab = (RecoverTable*)shellMalloc(pRc, sizeof(RecoverTable));
    if( pTab ){
      pTab->zQuoted = shellMPrintf(pRc, "\"%w\"", zTab);
      pTab->nCol = nCol;
      pTab->iPk = -2;
      if( nCol>0 ){
        pTab->azlCol = (char**)shellMalloc(pRc, sizeof(char*) * (nCol+1));
        if( pTab->azlCol ){
          pTab->azlCol[nCol] = shellMPrintf(pRc, "");
          for(i=nCol-1; i>=0; i--){

      zRecoveryDb = azArg[i];
    }else
    if( n<=15 && memcmp("-lost-and-found", z, n)==0 && i<(nArg-1) ){
      i++;
      zLostAndFound = azArg[i];
    }
    else{
      utf8_printf(stderr, "unexpected option: %s\n", azArg[i]); 
      showHelp(pState->out, azArg[0]);



      return 1;
    }
  }

  shellExecPrintf(pState->db, &rc,
    /* Attach an in-memory database named 'recovery'. Create an indexed 
    ** cache of the sqlite_dbptr virtual table. */
    "PRAGMA writable_schema = on;"
    "ATTACH %Q AS recovery;"
    "DROP TABLE IF EXISTS recovery.dbptr;"
    "DROP TABLE IF EXISTS recovery.freelist;"
    "DROP TABLE IF EXISTS recovery.map;"
    "DROP TABLE IF EXISTS recovery.schema;"
    "CREATE TABLE recovery.freelist(pgno INTEGER PRIMARY KEY);", zRecoveryDb
  );

      "    UNION ALL"
      "  SELECT data, n-1, shell_int32(data, 2+n) "
      "      FROM freelist WHERE n>=0"
      ")"
      "REPLACE INTO recovery.freelist SELECT freepgno FROM freelist;"
    );
  }

  /* If this is an auto-vacuum database, add all pointer-map pages to
  ** the freelist table. Do this regardless of whether or not 
  ** --freelist-corrupt was specified.  */
  shellExec(pState->db, &rc, 
    "WITH ptrmap(pgno) AS ("
    "  SELECT 2 WHERE shell_int32("
    "    (SELECT data FROM sqlite_dbpage WHERE pgno=1), 13"
    "  )"
    "    UNION ALL "
    "  SELECT pgno+1+(SELECT page_size FROM pragma_page_size)/5 AS pp "
    "  FROM ptrmap WHERE pp<=(SELECT page_count FROM pragma_page_count)"
    ")"
    "REPLACE INTO recovery.freelist SELECT pgno FROM ptrmap"
  );

  shellExec(pState->db, &rc, 
    "CREATE TABLE recovery.dbptr("
    "      pgno, child, PRIMARY KEY(child, pgno)"
    ") WITHOUT ROWID;"
    "INSERT OR IGNORE INTO recovery.dbptr(pgno, child) "
    "    SELECT * FROM sqlite_dbptr"

    "      SELECT 0, i, (SELECT pgno FROM recovery.dbptr WHERE child=i)"
    "        UNION "
    "      SELECT i, p.parent, "
    "        (SELECT pgno FROM recovery.dbptr WHERE child=p.parent) FROM p"
    "    )"
    "    SELECT pgno FROM p WHERE (parent IS NULL OR pgno = orig)"
    ") "
    "FROM pages WHERE maxlen IS NOT NULL AND i NOT IN freelist;"
    "UPDATE recovery.map AS o SET intkey = ("
    "  SELECT substr(data, 1, 1)==X'0D' FROM sqlite_dbpage WHERE pgno=o.pgno"
    ");"

    /* Extract data from page 1 and any linked pages into table
    ** recovery.schema. With the same schema as an sqlite_master table.  */
    "CREATE TABLE recovery.schema(type, name, tbl_name, rootpage, sql);"

    "CREATE INDEX recovery.schema_rootpage ON schema(rootpage);"
  );

  /* Open a transaction, then print out all non-virtual, non-"sqlite_%" 
  ** CREATE TABLE statements that extracted from the existing schema.  */
  if( rc==SQLITE_OK ){
    sqlite3_stmt *pStmt = 0;
    /* ".recover" might output content in an order which causes immediate
    ** foreign key constraints to be violated. So disable foreign-key
    ** constraint enforcement to prevent problems when running the output
    ** script. */
    raw_printf(pState->out, "PRAGMA foreign_keys=OFF;\n");
    raw_printf(pState->out, "BEGIN;\n");
    raw_printf(pState->out, "PRAGMA writable_schema = on;\n");
    shellPrepare(pState->db, &rc,
        "SELECT sql FROM recovery.schema "
        "WHERE type='table' AND sql LIKE 'create table%'", &pStmt
    );
    while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pStmt) ){

  pLoop = 0;

  shellPrepare(pState->db, &rc,
      "SELECT pgno FROM recovery.map WHERE root=?", &pPages
  );
  shellPrepare(pState->db, &rc,
      "SELECT max(field), group_concat(shell_escape_crnl(quote(value)), ', ')"
      ", min(field) "
      "FROM sqlite_dbdata WHERE pgno = ? AND field != ?"
      "GROUP BY cell", &pCells
  );

  /* Loop through each root page. */
  shellPrepare(pState->db, &rc, 
      "SELECT root, intkey, max(maxlen) FROM recovery.map" 
      " WHERE root>1 GROUP BY root, intkey ORDER BY root=("
      "  SELECT rootpage FROM recovery.schema WHERE name='sqlite_sequence'"
      ")", &pLoop
  );
  while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pLoop) ){
    int iRoot = sqlite3_column_int(pLoop, 0);
    int bIntkey = sqlite3_column_int(pLoop, 1);
    int nCol = sqlite3_column_int(pLoop, 2);
    int bNoop = 0;
    RecoverTable *pTab;

    assert( bIntkey==0 || bIntkey==1 );
    pTab = recoverFindTable(pState, &rc, iRoot, bIntkey, nCol, &bNoop);
    if( bNoop || rc ) continue;
    if( pTab==0 ){
      if( pOrphan==0 ){
        pOrphan = recoverOrphanTable(pState, &rc, zLostAndFound, nOrphan);
      }
      pTab = pOrphan;
      if( pTab==0 ) break;
    }

    if( 0==sqlite3_stricmp(pTab->zQuoted, "\"sqlite_sequence\"") ){
      raw_printf(pState->out, "DELETE FROM sqlite_sequence;\n");
    }
    sqlite3_bind_int(pPages, 1, iRoot);
    sqlite3_bind_int(pCells, 2, pTab->iPk);

    while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pPages) ){
      int iPgno = sqlite3_column_int(pPages, 0);
      sqlite3_bind_int(pCells, 1, iPgno);
      while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pCells) ){
        int nField = sqlite3_column_int(pCells, 0);
        int iMin = sqlite3_column_int(pCells, 2);
        const char *zVal = (const char*)sqlite3_column_text(pCells, 1);

        RecoverTable *pTab2 = pTab;
        if( pTab!=pOrphan && (iMin<0)!=bIntkey ){
          if( pOrphan==0 ){
            pOrphan = recoverOrphanTable(pState, &rc, zLostAndFound, nOrphan);
          }
          pTab2 = pOrphan;
          if( pTab2==0 ) break;
        }

        nField = nField+1;
        if( pTab2==pOrphan ){
          raw_printf(pState->out, 
              "INSERT INTO %s VALUES(%d, %d, %d, %s%s%s);\n",
              pTab2->zQuoted, iRoot, iPgno, nField,
              iMin<0 ? "" : "NULL, ", zVal, pTab2->azlCol[nField]
          );
        }else{
          raw_printf(pState->out, "INSERT INTO %s(%s) VALUES( %s );\n", 
              pTab2->zQuoted, pTab2->azlCol[nField], zVal
          );
        }
      }
      shellReset(&rc, pCells);
    }
    shellReset(&rc, pPages);
    if( pTab!=pOrphan ) recoverFreeTable(pTab);

** Return 1 on error, 2 to exit, and 0 otherwise.
*/
static int do_meta_command(char *zLine, ShellState *p){
  int h = 1;
  int nArg = 0;
  int n, c;
  int rc = 0;
  char *azArg[52];

#ifndef SQLITE_OMIT_VIRTUALTABLE
  if( p->expert.pExpert ){
    expertFinish(p, 1, 0);
  }
#endif

  /* Parse the input line into tokens.
  */
  while( zLine[h] && nArg<ArraySize(azArg)-1 ){
    while( IsSpace(zLine[h]) ){ h++; }
    if( zLine[h]==0 ) break;
    if( zLine[h]=='\'' || zLine[h]=='"' ){
      int delim = zLine[h++];
      azArg[nArg++] = &zLine[h];
      while( zLine[h] && zLine[h]!=delim ){
        if( zLine[h]=='\\' && delim=='"' && zLine[h+1]!=0 ) h++;
        h++;
      }
      if( zLine[h]==delim ){
        zLine[h++] = 0;
      }
      if( delim=='"' ) resolve_backslashes(azArg[nArg-1]);
    }else{
      azArg[nArg++] = &zLine[h];
      while( zLine[h] && !IsSpace(zLine[h]) ){ h++; }
      if( zLine[h] ) zLine[h++] = 0;
      resolve_backslashes(azArg[nArg-1]);
    }
  }
  azArg[nArg] = 0;

  /* Process the input line.
  */
  if( nArg==0 ) return 0; /* no tokens, no error */
  n = strlen30(azArg[0]);
  c = azArg[0][0];
  clearTempFile(p);

  if( c=='d' && n>=3 && strncmp(azArg[0], "dbconfig", n)==0 ){
    static const struct DbConfigChoices {
      const char *zName;
      int op;
    } aDbConfig[] = {
        { "enable_fkey",        SQLITE_DBCONFIG_ENABLE_FKEY           },
        { "enable_trigger",     SQLITE_DBCONFIG_ENABLE_TRIGGER        },
        { "enable_view",        SQLITE_DBCONFIG_ENABLE_VIEW           },
        { "fts3_tokenizer",     SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER },
        { "load_extension",     SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION },
        { "no_ckpt_on_close",   SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE      },
        { "enable_qpsg",        SQLITE_DBCONFIG_ENABLE_QPSG           },
        { "trigger_eqp",        SQLITE_DBCONFIG_TRIGGER_EQP           },
        { "reset_database",     SQLITE_DBCONFIG_RESET_DATABASE        },
        { "defensive",          SQLITE_DBCONFIG_DEFENSIVE             },

    }else{
      raw_printf(p->out, "ANALYZE sqlite_master;\n");
      sqlite3_exec(p->db, "SELECT 'ANALYZE sqlite_master'",
                   callback, &data, &zErrMsg);
      data.cMode = data.mode = MODE_Insert;
      data.zDestTable = "sqlite_stat1";
      shell_exec(&data, "SELECT * FROM sqlite_stat1", &zErrMsg);


      data.zDestTable = "sqlite_stat4";
      shell_exec(&data, "SELECT * FROM sqlite_stat4", &zErrMsg);
      raw_printf(p->out, "ANALYZE sqlite_master;\n");
    }
  }else

  if( c=='h' && strncmp(azArg[0], "headers", n)==0 ){

        appendText(&sSelect, " AS snum, ", 0);
        appendText(&sSelect, zDb, '\'');
        appendText(&sSelect, " AS sname FROM ", 0);
        appendText(&sSelect, zDb, quoteChar(zDb));
        appendText(&sSelect, ".sqlite_master", 0);
      }
      sqlite3_finalize(pStmt);
#ifndef SQLITE_OMIT_INTROSPECTION_PRAGMAS
      if( zName ){
        appendText(&sSelect,
           " UNION ALL SELECT shell_module_schema(name),"
           " 'table', name, name, name, 9e+99, 'main' FROM pragma_module_list",
        0);
      }
#endif
      appendText(&sSelect, ") WHERE ", 0);
      if( zName ){
        char *zQarg = sqlite3_mprintf("%Q", zName);
        int bGlob = strchr(zName, '*') != 0 || strchr(zName, '?') != 0 ||
                    strchr(zName, '[') != 0;

    */
    if( strcmp(azCmd[0],"changeset")==0 || strcmp(azCmd[0],"patchset")==0 ){
      FILE *out = 0;
      if( nCmd!=2 ) goto session_syntax_error;
      if( pSession->p==0 ) goto session_not_open;
      out = fopen(azCmd[1], "wb");
      if( out==0 ){
        utf8_printf(stderr, "ERROR: cannot open \"%s\" for writing\n",
                    azCmd[1]);
      }else{
        int szChng;
        void *pChng;
        if( azCmd[0][0]=='c' ){
          rc = sqlite3session_changeset(pSession->p, &szChng, &pChng);
        }else{
          rc = sqlite3session_patchset(pSession->p, &szChng, &pChng);

        }else
        if( strcmp(z,"debug")==0 ){
          bDebug = 1;
        }else
        {
          utf8_printf(stderr, "Unknown option \"%s\" on \"%s\"\n",
                      azArg[i], azArg[0]);
          showHelp(p->out, azArg[0]);

          rc = 1;
          goto meta_command_exit;
        }
      }else if( zLike ){
        raw_printf(stderr, "Usage: .sha3sum ?OPTIONS? ?LIKE-PATTERN?\n");
        rc = 1;
        goto meta_command_exit;

                           " ORDER BY name;", 0);
      }else if( strcmp(zTab, "sqlite_sequence")==0 ){
        appendText(&sQuery,"SELECT name,seq FROM sqlite_sequence"
                           " ORDER BY name;", 0);
      }else if( strcmp(zTab, "sqlite_stat1")==0 ){
        appendText(&sQuery,"SELECT tbl,idx,stat FROM sqlite_stat1"
                           " ORDER BY tbl,idx;", 0);
      }else if( strcmp(zTab, "sqlite_stat4")==0 ){

        appendText(&sQuery, "SELECT * FROM ", 0);
        appendText(&sQuery, zTab, 0);
        appendText(&sQuery, " ORDER BY tbl, idx, rowid;\n", 0);
      }
      appendText(&sSql, zSep, 0);
      appendText(&sSql, sQuery.z, '\'');
      sQuery.n = 0;

#ifndef SQLITE_UNTESTABLE
  if( c=='t' && n>=8 && strncmp(azArg[0], "testctrl", n)==0 ){
    static const struct {
       const char *zCtrlName;   /* Name of a test-control option */
       int ctrlCode;            /* Integer code for that option */
       const char *zUsage;      /* Usage notes */
    } aCtrl[] = {
      { "always",             SQLITE_TESTCTRL_ALWAYS,        "BOOLEAN"        },
      { "assert",             SQLITE_TESTCTRL_ASSERT,        "BOOLEAN"        },
    /*{ "benign_malloc_hooks",SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS, ""       },*/
    /*{ "bitvec_test",        SQLITE_TESTCTRL_BITVEC_TEST,   ""             },*/
      { "byteorder",          SQLITE_TESTCTRL_BYTEORDER,     ""               },
      { "extra_schema_checks",SQLITE_TESTCTRL_EXTRA_SCHEMA_CHECKS,"BOOLEAN"   },
    /*{ "fault_install",      SQLITE_TESTCTRL_FAULT_INSTALL, ""             },*/
      { "imposter",         SQLITE_TESTCTRL_IMPOSTER, "SCHEMA ON/OFF ROOTPAGE"},
      { "internal_functions", SQLITE_TESTCTRL_INTERNAL_FUNCTIONS, "BOOLEAN"   },
      { "localtime_fault",    SQLITE_TESTCTRL_LOCALTIME_FAULT,"BOOLEAN"       },
      { "never_corrupt",      SQLITE_TESTCTRL_NEVER_CORRUPT, "BOOLEAN"        },
      { "optimizations",      SQLITE_TESTCTRL_OPTIMIZATIONS, "DISABLE-MASK"   },
#ifdef YYCOVERAGE
      { "parser_coverage",    SQLITE_TESTCTRL_PARSER_COVERAGE, ""             },
#endif
      { "pending_byte",       SQLITE_TESTCTRL_PENDING_BYTE,  "OFFSET  "       },

      { "prng_restore",       SQLITE_TESTCTRL_PRNG_RESTORE,  ""               },
      { "prng_save",          SQLITE_TESTCTRL_PRNG_SAVE,     ""               },
      { "prng_seed",          SQLITE_TESTCTRL_PRNG_SEED,     "SEED ?db?"      },
      { "reserve",            SQLITE_TESTCTRL_RESERVE,      "BYTES-OF-RESERVE"},
    };
    int testctrl = -1;
    int iCtrl = -1;
    int rc2 = 0;    /* 0: usage.  1: %d  2: %x  3: no-output */
    int isOk = 0;
    int i, n2;
    const char *zCmd = 0;

        case SQLITE_TESTCTRL_PENDING_BYTE:
          if( nArg==3 ){
            unsigned int opt = (unsigned int)integerValue(azArg[2]);
            rc2 = sqlite3_test_control(testctrl, opt);
            isOk = 3;
          }
          break;

        /* sqlite3_test_control(int, int, sqlite3*) */
        case SQLITE_TESTCTRL_PRNG_SEED:
          if( nArg==3 || nArg==4 ){
            int ii = (int)integerValue(azArg[2]);
            sqlite3 *db;
            if( ii==0 && strcmp(azArg[2],"random")==0 ){
              sqlite3_randomness(sizeof(ii),&ii);
              printf("-- random seed: %d\n", ii);
            }
            if( nArg==3 ){
              db = 0;
            }else{
              db = p->db;
              /* Make sure the schema has been loaded */
              sqlite3_table_column_metadata(db, 0, "x", 0, 0, 0, 0, 0, 0);
            }
            rc2 = sqlite3_test_control(testctrl, ii, db);
            isOk = 3;
          }
          break;

        /* sqlite3_test_control(int, int) */
        case SQLITE_TESTCTRL_ASSERT:
        case SQLITE_TESTCTRL_ALWAYS:
        case SQLITE_TESTCTRL_INTERNAL_FUNCTIONS:
          if( nArg==3 ){
            int opt = booleanValue(azArg[2]);

            sqlite3_test_control(testctrl, p->out);
            isOk = 3;
          }
#endif
      }
    }
    if( isOk==0 && iCtrl>=0 ){
      utf8_printf(p->out, "Usage: .testctrl %s %s\n", zCmd,aCtrl[iCtrl].zUsage);
      rc = 1;
    }else if( isOk==1 ){
      raw_printf(p->out, "%d\n", rc2);
    }else if( isOk==2 ){
      raw_printf(p->out, "0x%08x\n", rc2);
    }
  }else

      sqlite3_trace_v2(p->db, 0, 0, 0);
    }else{
      if( mType==0 ) mType = SQLITE_TRACE_STMT;
      sqlite3_trace_v2(p->db, mType, sql_trace_callback, p);
    }
  }else
#endif /* !defined(SQLITE_OMIT_TRACE) */

#ifdef SQLITE_DEBUG
  if( c=='u' && strncmp(azArg[0], "unmodule", n)==0 ){
    int ii;
    int lenOpt;
    char *zOpt;
    if( nArg<2 ){
      raw_printf(stderr, "Usage: .unmodule [--allexcept] NAME ...\n");
      rc = 1;
      goto meta_command_exit;
    }
    open_db(p, 0);
    zOpt = azArg[1];
    if( zOpt[0]=='-' && zOpt[1]=='-' && zOpt[2]!=0 ) zOpt++;
    lenOpt = (int)strlen(zOpt);
    if( lenOpt>=3 && strncmp(zOpt, "-allexcept",lenOpt)==0 ){
      assert( azArg[nArg]==0 );
      sqlite3_drop_modules(p->db, nArg>2 ? (const char**)(azArg+2) : 0);
    }else{
      for(ii=1; ii<nArg; ii++){
        sqlite3_create_module(p->db, azArg[ii], 0, 0);
      }
    }
  }else
#endif

#if SQLITE_USER_AUTHENTICATION
  if( c=='u' && strncmp(azArg[0], "user", n)==0 ){
    if( nArg<2 ){
      raw_printf(stderr, "Usage: .user SUBCOMMAND ...\n");
      rc = 1;
      goto meta_command_exit;
    }
    open_db(p, 0);
    if( strcmp(azArg[1],"login")==0 ){
      if( nArg!=4 ){
        raw_printf(stderr, "Usage: .user login USER PASSWORD\n");
        rc = 1;
        goto meta_command_exit;
      }
      rc = sqlite3_user_authenticate(p->db, azArg[2], azArg[3],
                                     strlen30(azArg[3]));
      if( rc ){
        utf8_printf(stderr, "Authentication failed for user %s\n", azArg[2]);
        rc = 1;
      }
    }else if( strcmp(azArg[1],"add")==0 ){
      if( nArg!=5 ){
        raw_printf(stderr, "Usage: .user add USER PASSWORD ISADMIN\n");

  if( !g.perm.Admin ){
    login_needed(0);
    return;
  }
  if( P("rebuild") ){
    db_close(1);
    db_open_repository(g.zRepositoryName);
    db_begin_transaction();
    rebuild_db(0, 0, 0);
    admin_log("Rebuilt database.");
    db_end_transaction(0);
  }
  if( zUuid ){
    char *p;
    int i = 0;

  int once;

  login_check_credentials();
  if( !g.perm.Admin ){
    login_needed(0);
    return;
  }
  db_begin_transaction();
  zCurrent = getSkin(0);
  for(i=0; i<count(aBuiltinSkin); i++){
    aBuiltinSkin[i].zSQL = getSkin(aBuiltinSkin[i].zLabel);
  }

  if( cgi_csrf_safe(1) ){
    /* Process requests to delete a user-defined skin */

  zOrig = db_get(zKey, zDflt);
  zContent = PD(zFile,zOrig);
  if( P("revert")!=0 && cgi_csrf_safe(0) ){
    zContent = zDflt;
    isRevert = 1;
  }

  db_begin_transaction();
  style_header("%s", zTitle);
  for(j=0; j<count(aSkinAttr); j++){
    style_submenu_element(aSkinAttr[j].zSubmenu,
          "%R/setup_skinedit?w=%d&basis=%h&sk=%d",j,zBasis,iSkin);
  }
  @ <form action="%s(g.zTop)/setup_skinedit" method="post"><div>
  login_insert_csrf_secret();

/******************************************************************************
** This file is an amalgamation of many separate C source files from SQLite
** version 3.30.0.  By combining all the individual C code files into this
** single large file, the entire code can be compiled as a single translation
** unit.  This allows many compilers to do optimizations that would not be
** possible if the files were compiled separately.  Performance improvements
** of 5% or more are commonly seen when SQLite is compiled as a single
** translation unit.
**
** This file is all you need to compile SQLite.  To use SQLite in other

  "ENABLE_SORTER_REFERENCES",
#endif
#if SQLITE_ENABLE_SQLLOG
  "ENABLE_SQLLOG",
#endif
#if defined(SQLITE_ENABLE_STAT4)
  "ENABLE_STAT4",


#endif
#if SQLITE_ENABLE_STMTVTAB
  "ENABLE_STMTVTAB",
#endif
#if SQLITE_ENABLE_STMT_SCANSTATUS
  "ENABLE_STMT_SCANSTATUS",
#endif

** been edited in any way since it was last checked in, then the last
** four hexadecimal digits of the hash may be modified.
**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.30.0"
#define SQLITE_VERSION_NUMBER 3030000
#define SQLITE_SOURCE_ID      "2019-09-03 16:23:41 3044cf6917ea8324175fc91657e9a5978af9748f72e1914bc361753f0b2d897d"

/*
** CAPI3REF: Run-Time Library Version Numbers
** KEYWORDS: sqlite3_version sqlite3_sourceid
**
** These interfaces provide the same information as the [SQLITE_VERSION],
** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros

** The first argument is an integer which is 0 to disable triggers,
** positive to enable triggers or negative to leave the setting unchanged.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether triggers are disabled or enabled
** following this call.  The second parameter may be a NULL pointer, in
** which case the trigger setting is not reported back. </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_VIEW]]
** <dt>SQLITE_DBCONFIG_ENABLE_VIEW</dt>
** <dd> ^This option is used to enable or disable [CREATE VIEW | views].
** There should be two additional arguments.
** The first argument is an integer which is 0 to disable views,
** positive to enable views or negative to leave the setting unchanged.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether views are disabled or enabled
** following this call.  The second parameter may be a NULL pointer, in
** which case the view setting is not reported back. </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER]]
** <dt>SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER</dt>
** <dd> ^This option is used to enable or disable the
** [fts3_tokenizer()] function which is part of the
** [FTS3] full-text search engine extension.
** There should be two additional arguments.
** The first argument is an integer which is 0 to disable fts3_tokenizer() or

#define SQLITE_DBCONFIG_TRIGGER_EQP           1008 /* int int* */
#define SQLITE_DBCONFIG_RESET_DATABASE        1009 /* int int* */
#define SQLITE_DBCONFIG_DEFENSIVE             1010 /* int int* */
#define SQLITE_DBCONFIG_WRITABLE_SCHEMA       1011 /* int int* */
#define SQLITE_DBCONFIG_LEGACY_ALTER_TABLE    1012 /* int int* */
#define SQLITE_DBCONFIG_DQS_DML               1013 /* int int* */
#define SQLITE_DBCONFIG_DQS_DDL               1014 /* int int* */
#define SQLITE_DBCONFIG_ENABLE_VIEW           1015 /* int int* */
#define SQLITE_DBCONFIG_MAX                   1015 /* Largest DBCONFIG */

/*
** CAPI3REF: Enable Or Disable Extended Result Codes
** METHOD: sqlite3
**
** ^The sqlite3_extended_result_codes() routine enables or disables the
** [extended result codes] feature of SQLite. ^The extended result

** WHERE clause might influence the choice of query plan for a statement,
** then the statement will be automatically recompiled, as if there had been 
** a schema change, on the first  [sqlite3_step()] call following any change
** to the [sqlite3_bind_text | bindings] of that [parameter]. 
** ^The specific value of WHERE-clause [parameter] might influence the 
** choice of query plan if the parameter is the left-hand side of a [LIKE]
** or [GLOB] operator or if the parameter is compared to an indexed column
** and the [SQLITE_ENABLE_STAT4] compile-time option is enabled.
** </li>
** </ol>
**
** <p>^sqlite3_prepare_v3() differs from sqlite3_prepare_v2() only in having
** the extra prepFlags parameter, which is a bit array consisting of zero or
** more of the [SQLITE_PREPARE_PERSISTENT|SQLITE_PREPARE_*] flags.  ^The
** sqlite3_prepare_v2() interface works exactly the same as

** ^The fourth parameter may optionally be ORed with [SQLITE_DETERMINISTIC]
** to signal that the function will always return the same result given
** the same inputs within a single SQL statement.  Most SQL functions are
** deterministic.  The built-in [random()] SQL function is an example of a
** function that is not deterministic.  The SQLite query planner is able to
** perform additional optimizations on deterministic functions, so use
** of the [SQLITE_DETERMINISTIC] flag is recommended where possible.
** ^The fourth parameter may also optionally include the [SQLITE_DIRECTONLY]
** flag, which if present prevents the function from being invoked from
** within VIEWs or TRIGGERs.
**
** ^(The fifth parameter is an arbitrary pointer.  The implementation of the
** function can gain access to this pointer using [sqlite3_user_data()].)^
**
** ^The sixth, seventh and eighth parameters passed to the three
** "sqlite3_create_function*" functions, xFunc, xStep and xFinal, are
** pointers to C-language functions that implement the SQL function or

/*
** CAPI3REF: Function Flags
**
** These constants may be ORed together with the 
** [SQLITE_UTF8 | preferred text encoding] as the fourth argument
** to [sqlite3_create_function()], [sqlite3_create_function16()], or
** [sqlite3_create_function_v2()].
**
** The SQLITE_DETERMINISTIC flag means that the new function will always
** maps the same inputs into the same output.  The abs() function is
** deterministic, for example, but randomblob() is not.
**
** The SQLITE_DIRECTONLY flag means that the function may only be invoked
** from top-level SQL, and cannot be used in VIEWs or TRIGGERs.
*/
#define SQLITE_DETERMINISTIC    0x000000800
#define SQLITE_DIRECTONLY       0x000080000

/*
** CAPI3REF: Deprecated Functions
** DEPRECATED
**
** These functions are [deprecated].  In order to maintain
** backwards compatibility with older code, these functions continue 

** is a pointer to a destructor for the pClientData.  ^SQLite will
** invoke the destructor function (if it is not NULL) when SQLite
** no longer needs the pClientData pointer.  ^The destructor will also
** be invoked if the call to sqlite3_create_module_v2() fails.
** ^The sqlite3_create_module()
** interface is equivalent to sqlite3_create_module_v2() with a NULL
** destructor.
**
** ^If the third parameter (the pointer to the sqlite3_module object) is
** NULL then no new module is create and any existing modules with the
** same name are dropped.
**
** See also: [sqlite3_drop_modules()]
*/
SQLITE_API int sqlite3_create_module(
  sqlite3 *db,               /* SQLite connection to register module with */
  const char *zName,         /* Name of the module */
  const sqlite3_module *p,   /* Methods for the module */
  void *pClientData          /* Client data for xCreate/xConnect */
);
SQLITE_API int sqlite3_create_module_v2(
  sqlite3 *db,               /* SQLite connection to register module with */
  const char *zName,         /* Name of the module */
  const sqlite3_module *p,   /* Methods for the module */
  void *pClientData,         /* Client data for xCreate/xConnect */
  void(*xDestroy)(void*)     /* Module destructor function */
);

/*
** CAPI3REF: Remove Unnecessary Virtual Table Implementations
** METHOD: sqlite3
**
** ^The sqlite3_drop_modules(D,L) interface removes all virtual
** table modules from database connection D except those named on list L.
** The L parameter must be either NULL or a pointer to an array of pointers
** to strings where the array is terminated by a single NULL pointer.
** ^If the L parameter is NULL, then all virtual table modules are removed.
**
** See also: [sqlite3_create_module()]
*/
SQLITE_API int sqlite3_drop_modules(
  sqlite3 *db,                /* Remove modules from this connection */
  const char **azKeep         /* Except, do not remove the ones named here */
);

/*
** CAPI3REF: Virtual Table Instance Object
** KEYWORDS: sqlite3_vtab
**
** Every [virtual table module] implementation uses a subclass
** of this object to describe a particular instance

** without notice.  These values are for testing purposes only.
** Applications should not use any of these parameters or the
** [sqlite3_test_control()] interface.
*/
#define SQLITE_TESTCTRL_FIRST                    5
#define SQLITE_TESTCTRL_PRNG_SAVE                5
#define SQLITE_TESTCTRL_PRNG_RESTORE             6
#define SQLITE_TESTCTRL_PRNG_RESET               7  /* NOT USED */
#define SQLITE_TESTCTRL_BITVEC_TEST              8
#define SQLITE_TESTCTRL_FAULT_INSTALL            9
#define SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS     10
#define SQLITE_TESTCTRL_PENDING_BYTE            11
#define SQLITE_TESTCTRL_ASSERT                  12
#define SQLITE_TESTCTRL_ALWAYS                  13
#define SQLITE_TESTCTRL_RESERVE                 14

#define SQLITE_TESTCTRL_VDBE_COVERAGE           21
#define SQLITE_TESTCTRL_BYTEORDER               22
#define SQLITE_TESTCTRL_ISINIT                  23
#define SQLITE_TESTCTRL_SORTER_MMAP             24
#define SQLITE_TESTCTRL_IMPOSTER                25
#define SQLITE_TESTCTRL_PARSER_COVERAGE         26
#define SQLITE_TESTCTRL_RESULT_INTREAL          27
#define SQLITE_TESTCTRL_PRNG_SEED               28
#define SQLITE_TESTCTRL_EXTRA_SCHEMA_CHECKS     29
#define SQLITE_TESTCTRL_LAST                    29  /* Largest TESTCTRL */

/*
** CAPI3REF: SQL Keyword Checking
**
** These routines provide access to the set of SQL language keywords 
** recognized by SQLite.  Applications can uses these routines to determine
** whether or not a specific identifier needs to be escaped (for example,

** that vary from one machine to the next.
**
** Ticket #3860:  The llvm-gcc-4.2 compiler from Apple chokes on
** the ((void*)&((char*)0)[X]) construct.  But MSVC chokes on ((void*)(X)).
** So we have to define the macros in different ways depending on the
** compiler.
*/
#if defined(HAVE_STDINT_H)   /* Use this case if we have ANSI headers */
# define SQLITE_INT_TO_PTR(X)  ((void*)(intptr_t)(X))
# define SQLITE_PTR_TO_INT(X)  ((int)(intptr_t)(X))
#elif defined(__PTRDIFF_TYPE__)  /* This case should work for GCC */
# define SQLITE_INT_TO_PTR(X)  ((void*)(__PTRDIFF_TYPE__)(X))
# define SQLITE_PTR_TO_INT(X)  ((int)(__PTRDIFF_TYPE__)(X))
#elif !defined(__GNUC__)       /* Works for compilers other than LLVM */
# define SQLITE_INT_TO_PTR(X)  ((void*)&((char*)0)[X])
# define SQLITE_PTR_TO_INT(X)  ((int)(((char*)X)-(char*)0))



#else                          /* Generates a warning - but it always works */
# define SQLITE_INT_TO_PTR(X)  ((void*)(X))
# define SQLITE_PTR_TO_INT(X)  ((int)(X))
#endif

/*
** A macro to hint to the compiler that a function should not be

#define TK_ROW                             75
#define TK_ROWS                            76
#define TK_TRIGGER                         77
#define TK_VACUUM                          78
#define TK_VIEW                            79
#define TK_VIRTUAL                         80
#define TK_WITH                            81
#define TK_NULLS                           82
#define TK_FIRST                           83
#define TK_LAST                            84
#define TK_CURRENT                         85
#define TK_FOLLOWING                       86
#define TK_PARTITION                       87
#define TK_PRECEDING                       88
#define TK_RANGE                           89
#define TK_UNBOUNDED                       90
#define TK_EXCLUDE                         91
#define TK_GROUPS                          92
#define TK_OTHERS                          93
#define TK_TIES                            94
#define TK_REINDEX                         95
#define TK_RENAME                          96
#define TK_CTIME_KW                        97
#define TK_ANY                             98
#define TK_BITAND                          99
#define TK_BITOR                          100
#define TK_LSHIFT                         101
#define TK_RSHIFT                         102
#define TK_PLUS                           103
#define TK_MINUS                          104
#define TK_STAR                           105
#define TK_SLASH                          106
#define TK_REM                            107
#define TK_CONCAT                         108
#define TK_COLLATE                        109
#define TK_BITNOT                         110
#define TK_ON                             111
#define TK_INDEXED                        112
#define TK_STRING                         113
#define TK_JOIN_KW                        114
#define TK_CONSTRAINT                     115
#define TK_DEFAULT                        116
#define TK_NULL                           117
#define TK_PRIMARY                        118
#define TK_UNIQUE                         119
#define TK_CHECK                          120
#define TK_REFERENCES                     121
#define TK_AUTOINCR                       122
#define TK_INSERT                         123
#define TK_DELETE                         124
#define TK_UPDATE                         125
#define TK_SET                            126
#define TK_DEFERRABLE                     127
#define TK_FOREIGN                        128
#define TK_DROP                           129
#define TK_UNION                          130
#define TK_ALL                            131
#define TK_EXCEPT                         132
#define TK_INTERSECT                      133
#define TK_SELECT                         134
#define TK_VALUES                         135
#define TK_DISTINCT                       136
#define TK_DOT                            137
#define TK_FROM                           138
#define TK_JOIN                           139
#define TK_USING                          140
#define TK_ORDER                          141
#define TK_GROUP                          142
#define TK_HAVING                         143
#define TK_LIMIT                          144
#define TK_WHERE                          145
#define TK_INTO                           146
#define TK_NOTHING                        147
#define TK_FLOAT                          148
#define TK_BLOB                           149
#define TK_INTEGER                        150
#define TK_VARIABLE                       151
#define TK_CASE                           152
#define TK_WHEN                           153
#define TK_THEN                           154
#define TK_ELSE                           155
#define TK_INDEX                          156
#define TK_ALTER                          157
#define TK_ADD                            158
#define TK_WINDOW                         159
#define TK_OVER                           160
#define TK_FILTER                         161



#define TK_COLUMN                         162
#define TK_AGG_FUNCTION                   163
#define TK_AGG_COLUMN                     164
#define TK_TRUEFALSE                      165
#define TK_ISNOT                          166
#define TK_FUNCTION                       167
#define TK_UMINUS                         168
#define TK_UPLUS                          169
#define TK_TRUTH                          170
#define TK_REGISTER                       171
#define TK_VECTOR                         172
#define TK_SELECT_COLUMN                  173
#define TK_IF_NULL_ROW                    174
#define TK_ASTERISK                       175
#define TK_SPAN                           176
#define TK_SPACE                          177
#define TK_ILLEGAL                        178

/************** End of parse.h ***********************************************/
/************** Continuing where we left off in sqliteInt.h ******************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

# define SQLITE_DEFAULT_MMAP_SIZE 0
#endif
#if SQLITE_DEFAULT_MMAP_SIZE>SQLITE_MAX_MMAP_SIZE
# undef SQLITE_DEFAULT_MMAP_SIZE
# define SQLITE_DEFAULT_MMAP_SIZE SQLITE_MAX_MMAP_SIZE
#endif















/*
** SELECTTRACE_ENABLED will be either 1 or 0 depending on whether or not
** the Select query generator tracing logic is turned on.
*/
#if defined(SQLITE_ENABLE_SELECTTRACE)
# define SELECTTRACE_ENABLED 1
#else

#define OP_Offset         89 /* synopsis: r[P3] = sqlite_offset(P1)        */
#define OP_Column         90 /* synopsis: r[P3]=PX                         */
#define OP_Affinity       91 /* synopsis: affinity(r[P1@P2])               */
#define OP_MakeRecord     92 /* synopsis: r[P3]=mkrec(r[P1@P2])            */
#define OP_Count          93 /* synopsis: r[P2]=count()                    */
#define OP_ReadCookie     94
#define OP_SetCookie      95
#define OP_ReopenIdx      96 /* synopsis: root=P2 iDb=P3                   */
#define OP_OpenRead       97 /* synopsis: root=P2 iDb=P3                   */
#define OP_OpenWrite      98 /* synopsis: root=P2 iDb=P3                   */
#define OP_BitAnd         99 /* same as TK_BITAND, synopsis: r[P3]=r[P1]&r[P2] */
#define OP_BitOr         100 /* same as TK_BITOR, synopsis: r[P3]=r[P1]|r[P2] */
#define OP_ShiftLeft     101 /* same as TK_LSHIFT, synopsis: r[P3]=r[P2]<<r[P1] */
#define OP_ShiftRight    102 /* same as TK_RSHIFT, synopsis: r[P3]=r[P2]>>r[P1] */
#define OP_Add           103 /* same as TK_PLUS, synopsis: r[P3]=r[P1]+r[P2] */
#define OP_Subtract      104 /* same as TK_MINUS, synopsis: r[P3]=r[P2]-r[P1] */
#define OP_Multiply      105 /* same as TK_STAR, synopsis: r[P3]=r[P1]*r[P2] */
#define OP_Divide        106 /* same as TK_SLASH, synopsis: r[P3]=r[P2]/r[P1] */
#define OP_Remainder     107 /* same as TK_REM, synopsis: r[P3]=r[P2]%r[P1] */
#define OP_Concat        108 /* same as TK_CONCAT, synopsis: r[P3]=r[P2]+r[P1] */





#define OP_OpenDup       109
#define OP_BitNot        110 /* same as TK_BITNOT, synopsis: r[P2]= ~r[P1] */
#define OP_OpenAutoindex 111 /* synopsis: nColumn=P2                       */
#define OP_OpenEphemeral 112 /* synopsis: nColumn=P2                       */
#define OP_String8       113 /* same as TK_STRING, synopsis: r[P2]='P4'    */
#define OP_SorterOpen    114
#define OP_SequenceTest  115 /* synopsis: if( cursor[P1].ctr++ ) pc = P2   */
#define OP_OpenPseudo    116 /* synopsis: P3 columns in r[P2]              */
#define OP_Close         117
#define OP_ColumnsUsed   118
#define OP_SeekHit       119 /* synopsis: seekHit=P2                       */
#define OP_Sequence      120 /* synopsis: r[P2]=cursor[P1].ctr++           */

#define OP_ResetSorter   138
#define OP_CreateBtree   139 /* synopsis: r[P2]=root iDb=P1 flags=P3       */
#define OP_SqlExec       140
#define OP_ParseSchema   141
#define OP_LoadAnalysis  142
#define OP_DropTable     143
#define OP_DropIndex     144

#define OP_DropTrigger   145
#define OP_IntegrityCk   146
#define OP_RowSetAdd     147 /* synopsis: rowset(P1)=r[P2]                 */
#define OP_Real          148 /* same as TK_FLOAT, synopsis: r[P2]=P4       */
#define OP_Param         149
#define OP_FkCounter     150 /* synopsis: fkctr[P1]+=P2                    */
#define OP_MemMax        151 /* synopsis: r[P1]=max(r[P1],r[P2])           */
#define OP_OffsetLimit   152 /* synopsis: if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1) */
#define OP_AggInverse    153 /* synopsis: accum=r[P3] inverse(r[P2@P5])    */
#define OP_AggStep       154 /* synopsis: accum=r[P3] step(r[P2@P5])       */
#define OP_AggStep1      155 /* synopsis: accum=r[P3] step(r[P2@P5])       */

/*  40 */ 0x01, 0x23, 0x0b, 0x26, 0x26, 0x01, 0x01, 0x03,\
/*  48 */ 0x03, 0x03, 0x03, 0x03, 0x0b, 0x0b, 0x0b, 0x0b,\
/*  56 */ 0x0b, 0x0b, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00,\
/*  64 */ 0x00, 0x00, 0x02, 0x02, 0x08, 0x00, 0x10, 0x10,\
/*  72 */ 0x10, 0x10, 0x00, 0x10, 0x10, 0x00, 0x00, 0x10,\
/*  80 */ 0x10, 0x00, 0x00, 0x02, 0x02, 0x02, 0x00, 0x00,\
/*  88 */ 0x12, 0x20, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00,\
/*  96 */ 0x00, 0x00, 0x00, 0x26, 0x26, 0x26, 0x26, 0x26,\
/* 104 */ 0x26, 0x26, 0x26, 0x26, 0x26, 0x00, 0x12, 0x00,\
/* 112 */ 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
/* 120 */ 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
/* 128 */ 0x10, 0x00, 0x00, 0x04, 0x04, 0x00, 0x00, 0x10,\
/* 136 */ 0x10, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00,\
/* 144 */ 0x00, 0x00, 0x00, 0x06, 0x10, 0x10, 0x00, 0x04,\
/* 152 */ 0x1a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
/* 160 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x10,\
/* 168 */ 0x00, 0x00, 0x00, 0x00, 0x00,}

/* The sqlite3P2Values() routine is able to run faster if it knows
** the value of the largest JUMP opcode.  The smaller the maximum
** JUMP opcode the better, so the mkopcodeh.tcl script that

#endif
#if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_EXPLAIN)
SQLITE_PRIVATE   void sqlite3ExplainBreakpoint(const char*,const char*);
#else
# define sqlite3ExplainBreakpoint(A,B) /*no-op*/
#endif
SQLITE_PRIVATE void sqlite3VdbeAddParseSchemaOp(Vdbe*,int,char*);
SQLITE_PRIVATE void sqlite3VdbeChangeOpcode(Vdbe*, int addr, u8);
SQLITE_PRIVATE void sqlite3VdbeChangeP1(Vdbe*, int addr, int P1);
SQLITE_PRIVATE void sqlite3VdbeChangeP2(Vdbe*, int addr, int P2);
SQLITE_PRIVATE void sqlite3VdbeChangeP3(Vdbe*, int addr, int P3);
SQLITE_PRIVATE void sqlite3VdbeChangeP5(Vdbe*, u16 P5);
SQLITE_PRIVATE void sqlite3VdbeJumpHere(Vdbe*, int addr);
SQLITE_PRIVATE int sqlite3VdbeChangeToNoop(Vdbe*, int addr);
SQLITE_PRIVATE int sqlite3VdbeDeletePriorOpcode(Vdbe*, u8 op);
SQLITE_PRIVATE void sqlite3VdbeChangeP4(Vdbe*, int addr, const char *zP4, int N);
SQLITE_PRIVATE void sqlite3VdbeAppendP4(Vdbe*, void *pP4, int p4type);
SQLITE_PRIVATE void sqlite3VdbeSetP4KeyInfo(Parse*, Index*);

  struct sqlite3InitInfo {      /* Information used during initialization */
    int newTnum;                /* Rootpage of table being initialized */
    u8 iDb;                     /* Which db file is being initialized */
    u8 busy;                    /* TRUE if currently initializing */
    unsigned orphanTrigger : 1; /* Last statement is orphaned TEMP trigger */
    unsigned imposterTable : 1; /* Building an imposter table */
    unsigned reopenMemdb : 1;   /* ATTACH is really a reopen using MemDB */
    char **azInit;              /* "type", "name", and "tbl_name" columns */
  } init;
  int nVdbeActive;              /* Number of VDBEs currently running */
  int nVdbeRead;                /* Number of active VDBEs that read or write */
  int nVdbeWrite;               /* Number of active VDBEs that read and write */
  int nVdbeExec;                /* Number of nested calls to VdbeExec() */
  int nVDestroy;                /* Number of active OP_VDestroy operations */
  int nExtension;               /* Number of loaded extensions */

#define SQLITE_TriggerEQP     0x01000000  /* Show trigger EXPLAIN QUERY PLAN */
#define SQLITE_ResetDatabase  0x02000000  /* Reset the database */
#define SQLITE_LegacyAlter    0x04000000  /* Legacy ALTER TABLE behaviour */
#define SQLITE_NoSchemaError  0x08000000  /* Do not report schema parse errors*/
#define SQLITE_Defensive      0x10000000  /* Input SQL is likely hostile */
#define SQLITE_DqsDDL         0x20000000  /* dbl-quoted strings allowed in DDL*/
#define SQLITE_DqsDML         0x40000000  /* dbl-quoted strings allowed in DML*/
#define SQLITE_EnableView     0x80000000  /* Enable the use of views */

/* Flags used only if debugging */
#define HI(X)  ((u64)(X)<<32)
#ifdef SQLITE_DEBUG
#define SQLITE_SqlTrace       HI(0x0100000) /* Debug print SQL as it executes */
#define SQLITE_VdbeListing    HI(0x0200000) /* Debug listings of VDBE progs */
#define SQLITE_VdbeTrace      HI(0x0400000) /* True to trace VDBE execution */
#define SQLITE_VdbeAddopTrace HI(0x0800000) /* Trace sqlite3VdbeAddOp() calls */
#define SQLITE_VdbeEQP        HI(0x1000000) /* Debug EXPLAIN QUERY PLAN */
#define SQLITE_ParserTrace    HI(0x2000000) /* PRAGMA parser_trace=ON */
#endif

/*
** Allowed values for sqlite3.mDbFlags
*/
#define DBFLAG_SchemaChange   0x0001  /* Uncommitted Hash table changes */
#define DBFLAG_PreferBuiltin  0x0002  /* Preference to built-in funcs */

#define SQLITE_DistinctOpt    0x0010   /* DISTINCT using indexes */
#define SQLITE_CoverIdxScan   0x0020   /* Covering index scans */
#define SQLITE_OrderByIdxJoin 0x0040   /* ORDER BY of joins via index */
#define SQLITE_Transitive     0x0080   /* Transitive constraints */
#define SQLITE_OmitNoopJoin   0x0100   /* Omit unused tables in joins */
#define SQLITE_CountOfView    0x0200   /* The count-of-view optimization */
#define SQLITE_CursorHints    0x0400   /* Add OP_CursorHint opcodes */
#define SQLITE_Stat4          0x0800   /* Use STAT4 data */
   /* TH3 expects the Stat4   ^^^^^^ value to be 0x0800.  Don't change it */
#define SQLITE_PushDown       0x1000   /* The push-down optimization */
#define SQLITE_SimplifyJoin   0x2000   /* Convert LEFT JOIN to JOIN */
#define SQLITE_SkipScan       0x4000   /* Skip-scans */
#define SQLITE_PropagateConst 0x8000   /* The constant propagation opt */
#define SQLITE_AllOpts        0xffff   /* All optimizations */

/*

** are assert() statements in the code to verify this.
**
** Value constraints (enforced via assert()):
**     SQLITE_FUNC_MINMAX    ==  NC_MinMaxAgg      == SF_MinMaxAgg
**     SQLITE_FUNC_LENGTH    ==  OPFLAG_LENGTHARG
**     SQLITE_FUNC_TYPEOF    ==  OPFLAG_TYPEOFARG
**     SQLITE_FUNC_CONSTANT  ==  SQLITE_DETERMINISTIC from the API
**     SQLITE_FUNC_DIRECT    ==  SQLITE_DIRECTONLY from the API
**     SQLITE_FUNC_ENCMASK   depends on SQLITE_UTF* macros in the API
*/
#define SQLITE_FUNC_ENCMASK  0x0003 /* SQLITE_UTF8, SQLITE_UTF16BE or UTF16LE */
#define SQLITE_FUNC_LIKE     0x0004 /* Candidate for the LIKE optimization */
#define SQLITE_FUNC_CASE     0x0008 /* Case-sensitive LIKE-type function */
#define SQLITE_FUNC_EPHEM    0x0010 /* Ephemeral.  Delete with VDBE */
#define SQLITE_FUNC_NEEDCOLL 0x0020 /* sqlite3GetFuncCollSeq() might be called*/
#define SQLITE_FUNC_LENGTH   0x0040 /* Built-in length() function */
#define SQLITE_FUNC_TYPEOF   0x0080 /* Built-in typeof() function */
#define SQLITE_FUNC_COUNT    0x0100 /* Built-in count(*) aggregate */
#define SQLITE_FUNC_COALESCE 0x0200 /* Built-in coalesce() or ifnull() */
#define SQLITE_FUNC_UNLIKELY 0x0400 /* Built-in unlikely() function */
#define SQLITE_FUNC_CONSTANT 0x0800 /* Constant inputs give a constant output */
#define SQLITE_FUNC_MINMAX   0x1000 /* True for min() and max() aggregates */
#define SQLITE_FUNC_SLOCHNG  0x2000 /* "Slow Change". Value constant during a
                                    ** single query - might change over time */
#define SQLITE_FUNC_AFFINITY 0x4000 /* Built-in affinity() function */
#define SQLITE_FUNC_OFFSET   0x8000 /* Built-in sqlite_offset() function */
#define SQLITE_FUNC_WINDOW   0x00010000 /* Built-in window-only function */
#define SQLITE_FUNC_INTERNAL 0x00040000 /* For use by NestedParse() only */
#define SQLITE_FUNC_DIRECT   0x00080000 /* Not for use in TRIGGERs or VIEWs */

/*
** The following three macros, FUNCTION(), LIKEFUNC() and AGGREGATE() are
** used to create the initializers for the FuncDef structures.
**
**   FUNCTION(zName, nArg, iArg, bNC, xFunc)
**     Used to create a scalar function definition of a function zName

** Each SQLite module (virtual table definition) is defined by an
** instance of the following structure, stored in the sqlite3.aModule
** hash table.
*/
struct Module {
  const sqlite3_module *pModule;       /* Callback pointers */
  const char *zName;                   /* Name passed to create_module() */
  int nRefModule;                      /* Number of pointers to this object */
  void *pAux;                          /* pAux passed to create_module() */
  void (*xDestroy)(void *);            /* Module destructor function */
  Table *pEpoTab;                      /* Eponymous table for this module */
};

/*
** information about each column of an SQL table is held in an instance

** But rather than start with 0 or 1, we begin with 'A'.  That way,
** when multiple affinity types are concatenated into a string and
** used as the P4 operand, they will be more readable.
**
** Note also that the numeric types are grouped together so that testing
** for a numeric type is a single comparison.  And the BLOB type is first.
*/
#define SQLITE_AFF_NONE     0x40  /* '@' */
#define SQLITE_AFF_BLOB     0x41  /* 'A' */
#define SQLITE_AFF_TEXT     0x42  /* 'B' */
#define SQLITE_AFF_NUMERIC  0x43  /* 'C' */
#define SQLITE_AFF_INTEGER  0x44  /* 'D' */
#define SQLITE_AFF_REAL     0x45  /* 'E' */

#define sqlite3IsNumericAffinity(X)  ((X)>=SQLITE_AFF_NUMERIC)

/*
** The SQLITE_AFF_MASK values masks off the significant bits of an
** affinity value.
*/

*/
struct KeyInfo {
  u32 nRef;           /* Number of references to this KeyInfo object */
  u8 enc;             /* Text encoding - one of the SQLITE_UTF* values */
  u16 nKeyField;      /* Number of key columns in the index */
  u16 nAllField;      /* Total columns, including key plus others */
  sqlite3 *db;        /* The database connection */
  u8 *aSortFlags;     /* Sort order for each column. */
  CollSeq *aColl[1];  /* Collating sequence for each term of the key */
};

#define KEYINFO_ORDER_DESC    0x01
#define KEYINFO_ORDER_BIGNULL 0x02

/*
** This object holds a record which has been parsed out into individual
** fields, for the purposes of doing a comparison.
**
** A record is an object that contains one or more fields of data.
** Records are used to store the content of a table row and to store

  unsigned uniqNotNull:1;  /* True if UNIQUE and NOT NULL for all columns */
  unsigned isResized:1;    /* True if resizeIndexObject() has been called */
  unsigned isCovering:1;   /* True if this is a covering index */
  unsigned noSkipScan:1;   /* Do not try to use skip-scan if true */
  unsigned hasStat1:1;     /* aiRowLogEst values come from sqlite_stat1 */
  unsigned bNoQuery:1;     /* Do not use this index to optimize queries */
  unsigned bAscKeyBug:1;   /* True if the bba7b69f9849b5bf bug applies */
#ifdef SQLITE_ENABLE_STAT4
  int nSample;             /* Number of elements in aSample[] */
  int nSampleCol;          /* Size of IndexSample.anEq[] and so on */
  tRowcnt *aAvgEq;         /* Average nEq values for keys not in aSample */
  IndexSample *aSample;    /* Samples of the left-most key */
  tRowcnt *aiRowEst;       /* Non-logarithmic stat1 data for this index */
  tRowcnt nRowEst0;        /* Non-logarithmic number of rows in the index */
#endif

/* The Index.aiColumn[] values are normally positive integer.  But
** there are some negative values that have special meaning:
*/
#define XN_ROWID     (-1)     /* Indexed column is the rowid */
#define XN_EXPR      (-2)     /* Indexed column is an expression */

/*
** Each sample stored in the sqlite_stat4 table is represented in memory
** using a structure of this type.  See documentation at the top of the
** analyze.c source file for additional information.
*/
struct IndexSample {
  void *p;          /* Pointer to sampled record */
  int n;            /* Size of record in bytes */
  tRowcnt *anEq;    /* Est. number of rows where the key equals this sample */

** the child Expr objects in the Expr.pLeft and Expr.pRight subtrees
** are contained within the same memory allocation.  Note, however, that
** the subtrees in Expr.x.pList or Expr.x.pSelect are always separately
** allocated, regardless of whether or not EP_Reduced is set.
*/
struct Expr {
  u8 op;                 /* Operation performed by this node */
  char affExpr;          /* affinity, or RAISE type */
  u32 flags;             /* Various flags.  EP_* See below */
  union {
    char *zToken;          /* Token value. Zero terminated and dequoted */
    int iValue;            /* Non-negative integer value if EP_IntValue */
  } u;

  /* If the EP_TokenOnly flag is set in the Expr.flags mask, then no

#if SQLITE_MAX_EXPR_DEPTH>0
  int nHeight;           /* Height of the tree headed by this node */
#endif
  int iTable;            /* TK_COLUMN: cursor number of table holding column
                         ** TK_REGISTER: register number
                         ** TK_TRIGGER: 1 -> new, 0 -> old
                         ** EP_Unlikely:  134217728 times likelihood
                         ** TK_SELECT_COLUMN: Number of columns on the LHS
                         ** TK_SELECT: 1st register of result vector */
  ynVar iColumn;         /* TK_COLUMN: column index.  -1 for rowid.
                         ** TK_VARIABLE: variable number (always >= 1).
                         ** TK_SELECT_COLUMN: column of the result vector */
  i16 iAgg;              /* Which entry in pAggInfo->aCol[] or ->aFunc[] */
  i16 iRightJoinTable;   /* If EP_FromJoin, the right table of the join */
  u8 op2;                /* TK_REGISTER/TK_TRUTH: original value of Expr.op
                         ** TK_COLUMN: the value of p5 for OP_Column
                         ** TK_AGG_FUNCTION: nesting depth */
  AggInfo *pAggInfo;     /* Used by TK_AGG_COLUMN and TK_AGG_FUNCTION */
  union {
    Table *pTab;           /* TK_COLUMN: Table containing column. Can be NULL
                           ** for a column of an index on an expression */
    Window *pWin;          /* EP_WinFunc: Window/Filter defn for a function */
    struct {               /* TK_IN, TK_SELECT, and TK_EXISTS */
      int iAddr;             /* Subroutine entry address */
      int regReturn;         /* Register used to hold return address */
    } sub;
  } y;
};

/*
** The following are the meanings of bits in the Expr.flags field.
** Value restrictions:
**
**          EP_Agg == NC_HasAgg == SF_HasAgg
**          EP_Win == NC_HasWin
*/
#define EP_FromJoin   0x000001 /* Originates in ON/USING clause of outer join */
#define EP_Distinct   0x000002 /* Aggregate function with DISTINCT keyword */
#define EP_HasFunc    0x000004 /* Contains one or more functions of any kind */
#define EP_FixedCol   0x000008 /* TK_Column with a known fixed value */
#define EP_Agg        0x000010 /* Contains one or more aggregate functions */
#define EP_VarSelect  0x000020 /* pSelect is correlated, not constant */
#define EP_DblQuoted  0x000040 /* token.z was originally in "..." */
#define EP_InfixFunc  0x000080 /* True for an infix function: LIKE, GLOB, etc */
#define EP_Collate    0x000100 /* Tree contains a TK_COLLATE operator */
  /*                  0x000200 Available for reuse */
#define EP_IntValue   0x000400 /* Integer value contained in u.iValue */
#define EP_xIsSelect  0x000800 /* x.pSelect is valid (otherwise x.pList is) */
#define EP_Skip       0x001000 /* Operator does not contribute to affinity */
#define EP_Reduced    0x002000 /* Expr struct EXPR_REDUCEDSIZE bytes only */
#define EP_TokenOnly  0x004000 /* Expr struct EXPR_TOKENONLYSIZE bytes only */
#define EP_Win        0x008000 /* Contains window functions */
#define EP_MemToken   0x010000 /* Need to sqlite3DbFree() Expr.zToken */
#define EP_NoReduce   0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
#define EP_Unlikely   0x040000 /* unlikely() or likelihood() function */
#define EP_ConstFunc  0x080000 /* A SQLITE_FUNC_CONSTANT or _SLOCHNG function */
#define EP_CanBeNull  0x100000 /* Can be null despite NOT NULL constraint */
#define EP_Subquery   0x200000 /* Tree contains a TK_SELECT operator */
#define EP_Alias      0x400000 /* Is an alias for a result set column */
#define EP_Leaf       0x800000 /* Expr.pLeft, .pRight, .u.pSelect all NULL */
#define EP_WinFunc   0x1000000 /* TK_FUNCTION with Expr.y.pWin set */
#define EP_Subrtn    0x2000000 /* Uses Expr.y.sub. TK_IN, _SELECT, or _EXISTS */
#define EP_Quoted    0x4000000 /* TK_ID was originally quoted */
#define EP_Static    0x8000000 /* Held in memory not obtained from malloc() */
#define EP_IsTrue   0x10000000 /* Always has boolean value of TRUE */
#define EP_IsFalse  0x20000000 /* Always has boolean value of FALSE */
#define EP_Indirect 0x40000000 /* Contained within a TRIGGER or a VIEW */

/*
** The EP_Propagate mask is a set of properties that automatically propagate
** upwards into parent nodes.
*/
#define EP_Propagate (EP_Collate|EP_Subquery|EP_HasFunc)

#define EXPR_TOKENONLYSIZE      offsetof(Expr,pLeft)   /* Fewer features */

/*
** Flags passed to the sqlite3ExprDup() function. See the header comment
** above sqlite3ExprDup() for details.
*/
#define EXPRDUP_REDUCE         0x0001  /* Used reduced-size Expr nodes */

/*
** True if the expression passed as an argument was a function with
** an OVER() clause (a window function).
*/
#define IsWindowFunc(p) ( \
    ExprHasProperty((p), EP_WinFunc) && p->y.pWin->eFrmType!=TK_FILTER \
)

/*
** A list of expressions.  Each expression may optionally have a
** name.  An expr/name combination can be used in several ways, such
** as the list of "expr AS ID" fields following a "SELECT" or in the
** list of "ID = expr" items in an UPDATE.  A list of expressions can
** also be used as the argument to a function, in which case the a.zName

*/
struct ExprList {
  int nExpr;             /* Number of expressions on the list */
  struct ExprList_item { /* For each expression in the list */
    Expr *pExpr;            /* The parse tree for this expression */
    char *zName;            /* Token associated with this expression */
    char *zSpan;            /* Original text of the expression */
    u8 sortFlags;           /* Mask of KEYINFO_ORDER_* flags */
    unsigned done :1;       /* A flag to indicate when processing is finished */
    unsigned bSpanIsTab :1; /* zSpan holds DB.TABLE.COLUMN */
    unsigned reusable :1;   /* Constant expression is reusable */
    unsigned bSorterRef :1; /* Defer evaluation until after sorting */
    unsigned bNulls: 1;     /* True if explicit "NULLS FIRST/LAST" */
    union {
      struct {
        u16 iOrderByCol;      /* For ORDER BY, column number in result set */
        u16 iAlias;           /* Index into Parse.aAlias[] for zName */
      } x;
      int iConstExprReg;      /* Register in which Expr value is cached */
    } u;

#define SF_MinMaxAgg      0x01000  /* Aggregate containing min() or max() */
#define SF_Recursive      0x02000  /* The recursive part of a recursive CTE */
#define SF_FixedLimit     0x04000  /* nSelectRow set by a constant LIMIT */
#define SF_MaybeConvert   0x08000  /* Need convertCompoundSelectToSubquery() */
#define SF_Converted      0x10000  /* By convertCompoundSelectToSubquery() */
#define SF_IncludeHidden  0x20000  /* Include hidden columns in output */
#define SF_ComplexResult  0x40000  /* Result contains subquery or function */
#define SF_WhereBegin     0x80000  /* Really a WhereBegin() call.  Debug Only */

/*
** The results of a SELECT can be distributed in several ways, as defined
** by one of the following macros.  The "SRT" prefix means "SELECT Result
** Type".
**
**     SRT_Union       Store results as a key in a temporary index

/*
** Structure containing global configuration data for the SQLite library.
**
** This structure also contains some state information.
*/
struct Sqlite3Config {
  int bMemstat;                     /* True to enable memory status */
  u8 bCoreMutex;                    /* True to enable core mutexing */
  u8 bFullMutex;                    /* True to enable full mutexing */
  u8 bOpenUri;                      /* True to interpret filenames as URIs */
  u8 bUseCis;                       /* Use covering indices for full-scans */
  u8 bSmallMalloc;                  /* Avoid large memory allocations if true */
  u8 bExtraSchemaChecks;            /* Verify type,name,tbl_name in schema */
  int mxStrlen;                     /* Maximum string length */
  int neverCorrupt;                 /* Database is always well-formed */
  int szLookaside;                  /* Default lookaside buffer size */
  int nLookaside;                   /* Default lookaside buffer count */
  int nStmtSpill;                   /* Stmt-journal spill-to-disk threshold */
  sqlite3_mem_methods m;            /* Low-level memory allocation interface */
  sqlite3_mutex_methods mutex;      /* Low-level mutex interface */

#ifndef SQLITE_UNTESTABLE
  int (*xTestCallback)(int);        /* Invoked by sqlite3FaultSim() */
#endif
  int bLocaltimeFault;              /* True to fail localtime() calls */
  int bInternalFunctions;           /* Internal SQL functions are visible */
  int iOnceResetThreshold;          /* When to reset OP_Once counters */
  u32 szSorterRef;                  /* Min size in bytes to use sorter-refs */
  unsigned int iPrngSeed;           /* Alternative fixed seed for the PRNG */
};

/*
** This macro is used inside of assert() statements to indicate that
** the assert is only valid on a well-formed database.  Instead of:
**
**     assert( X );

struct TreeView {
  int iLevel;             /* Which level of the tree we are on */
  u8  bLine[100];         /* Draw vertical in column i if bLine[i] is true */
};
#endif /* SQLITE_DEBUG */

/*
** This object is used in various ways, most (but not all) related to window
** functions.
**
**   (1) A single instance of this structure is attached to the
**       the Expr.y.pWin field for each window function in an expression tree.
**       This object holds the information contained in the OVER clause,
**       plus additional fields used during code generation.
**
**   (2) All window functions in a single SELECT form a linked-list
**       attached to Select.pWin.  The Window.pFunc and Window.pExpr
**       fields point back to the expression that is the window function.
**
**   (3) The terms of the WINDOW clause of a SELECT are instances of this
**       object on a linked list attached to Select.pWinDefn.
**
**   (4) For an aggregate function with a FILTER clause, an instance
**       of this object is stored in Expr.y.pWin with eFrmType set to
**       TK_FILTER. In this case the only field used is Window.pFilter.
**
** The uses (1) and (2) are really the same Window object that just happens
** to be accessible in two different ways.  Use case (3) are separate objects.
*/
struct Window {
  char *zName;            /* Name of window (may be NULL) */
  char *zBase;            /* Name of base window for chaining (may be NULL) */
  ExprList *pPartition;   /* PARTITION BY clause */
  ExprList *pOrderBy;     /* ORDER BY clause */
  u8 eFrmType;            /* TK_RANGE, TK_GROUPS, TK_ROWS, or 0 */
  u8 eStart;              /* UNBOUNDED, CURRENT, PRECEDING or FOLLOWING */
  u8 eEnd;                /* UNBOUNDED, CURRENT, PRECEDING or FOLLOWING */
  u8 bImplicitFrame;      /* True if frame was implicitly specified */
  u8 eExclude;            /* TK_NO, TK_CURRENT, TK_TIES, TK_GROUP, or 0 */
  Expr *pStart;           /* Expression for "<expr> PRECEDING" */
  Expr *pEnd;             /* Expression for "<expr> FOLLOWING" */
  Window **ppThis;        /* Pointer to this object in Select.pWin list */
  Window *pNextWin;       /* Next window function belonging to this SELECT */
  Expr *pFilter;          /* The FILTER expression */
  FuncDef *pFunc;         /* The function */
  int iEphCsr;            /* Partition buffer or Peer buffer */
  int regAccum;
  int regResult;
  int csrApp;             /* Function cursor (used by min/max) */
  int regApp;             /* Function register (also used by min/max) */
  int regPart;            /* Array of registers for PARTITION BY values */
  Expr *pOwner;           /* Expression object this window is attached to */
  int nBufferCol;         /* Number of columns in buffer table */
  int iArgCol;            /* Offset of first argument for this function */
  int regOne;             /* Register containing constant value 1 */
  int regStartRowid;
  int regEndRowid;
};

#ifndef SQLITE_OMIT_WINDOWFUNC
SQLITE_PRIVATE void sqlite3WindowDelete(sqlite3*, Window*);
SQLITE_PRIVATE void sqlite3WindowUnlinkFromSelect(Window*);
SQLITE_PRIVATE void sqlite3WindowListDelete(sqlite3 *db, Window *p);
SQLITE_PRIVATE Window *sqlite3WindowAlloc(Parse*, int, int, Expr*, int , Expr*, u8);
SQLITE_PRIVATE void sqlite3WindowAttach(Parse*, Expr*, Window*);
SQLITE_PRIVATE void sqlite3WindowLink(Select *pSel, Window *pWin);
SQLITE_PRIVATE int sqlite3WindowCompare(Parse*, Window*, Window*, int);
SQLITE_PRIVATE void sqlite3WindowCodeInit(Parse*, Window*);
SQLITE_PRIVATE void sqlite3WindowCodeStep(Parse*, Select*, WhereInfo*, int, int);
SQLITE_PRIVATE int sqlite3WindowRewrite(Parse*, Select*);
SQLITE_PRIVATE int sqlite3ExpandSubquery(Parse*, struct SrcList_item*);
SQLITE_PRIVATE void sqlite3WindowUpdate(Parse*, Window*, Window*, FuncDef*);
SQLITE_PRIVATE Window *sqlite3WindowDup(sqlite3 *db, Expr *pOwner, Window *p);
SQLITE_PRIVATE Window *sqlite3WindowListDup(sqlite3 *db, Window *p);

SQLITE_PRIVATE Expr *sqlite3ExprSimplifiedAndOr(Expr*);
SQLITE_PRIVATE Expr *sqlite3ExprFunction(Parse*,ExprList*, Token*, int);
SQLITE_PRIVATE void sqlite3ExprAssignVarNumber(Parse*, Expr*, u32);
SQLITE_PRIVATE void sqlite3ExprDelete(sqlite3*, Expr*);
SQLITE_PRIVATE void sqlite3ExprUnmapAndDelete(Parse*, Expr*);
SQLITE_PRIVATE ExprList *sqlite3ExprListAppend(Parse*,ExprList*,Expr*);
SQLITE_PRIVATE ExprList *sqlite3ExprListAppendVector(Parse*,ExprList*,IdList*,Expr*);
SQLITE_PRIVATE void sqlite3ExprListSetSortOrder(ExprList*,int,int);
SQLITE_PRIVATE void sqlite3ExprListSetName(Parse*,ExprList*,Token*,int);
SQLITE_PRIVATE void sqlite3ExprListSetSpan(Parse*,ExprList*,const char*,const char*);
SQLITE_PRIVATE void sqlite3ExprListDelete(sqlite3*, ExprList*);
SQLITE_PRIVATE u32 sqlite3ExprListFlags(const ExprList*);
SQLITE_PRIVATE int sqlite3IndexHasDuplicateRootPage(Index*);
SQLITE_PRIVATE int sqlite3Init(sqlite3*, char**);
SQLITE_PRIVATE int sqlite3InitCallback(void*, int, char**, char**);
SQLITE_PRIVATE int sqlite3InitOne(sqlite3*, int, char**, u32);
SQLITE_PRIVATE void sqlite3Pragma(Parse*,Token*,Token*,Token*,int);
#ifndef SQLITE_OMIT_VIRTUALTABLE
SQLITE_PRIVATE Module *sqlite3PragmaVtabRegister(sqlite3*,const char *zName);
#endif
SQLITE_PRIVATE void sqlite3ResetAllSchemasOfConnection(sqlite3*);
SQLITE_PRIVATE void sqlite3ResetOneSchema(sqlite3*,int);
SQLITE_PRIVATE void sqlite3CollapseDatabaseArray(sqlite3*);
SQLITE_PRIVATE void sqlite3CommitInternalChanges(sqlite3*);
SQLITE_PRIVATE void sqlite3DeleteColumnNames(sqlite3*,Table*);
SQLITE_PRIVATE int sqlite3ColumnsFromExprList(Parse*,ExprList*,i16*,Column**);
SQLITE_PRIVATE void sqlite3SelectAddColumnTypeAndCollation(Parse*,Table*,Select*,char);
SQLITE_PRIVATE Table *sqlite3ResultSetOfSelect(Parse*,Select*,char);
SQLITE_PRIVATE void sqlite3OpenMasterTable(Parse *, int);
SQLITE_PRIVATE Index *sqlite3PrimaryKeyIndex(Table*);
SQLITE_PRIVATE i16 sqlite3ColumnOfIndex(Index*, i16);
SQLITE_PRIVATE void sqlite3StartTable(Parse*,Token*,Token*,int,int,int,int);
#if SQLITE_ENABLE_HIDDEN_COLUMNS
SQLITE_PRIVATE   void sqlite3ColumnPropertiesFromName(Table*, Column*);
#else

SQLITE_PRIVATE u32 sqlite3Utf8Read(const u8**);
SQLITE_PRIVATE LogEst sqlite3LogEst(u64);
SQLITE_PRIVATE LogEst sqlite3LogEstAdd(LogEst,LogEst);
#ifndef SQLITE_OMIT_VIRTUALTABLE
SQLITE_PRIVATE LogEst sqlite3LogEstFromDouble(double);
#endif
#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || \
    defined(SQLITE_ENABLE_STAT4) || \
    defined(SQLITE_EXPLAIN_ESTIMATED_ROWS)
SQLITE_PRIVATE u64 sqlite3LogEstToInt(LogEst);
#endif
SQLITE_PRIVATE VList *sqlite3VListAdd(sqlite3*,VList*,const char*,int,int);
SQLITE_PRIVATE const char *sqlite3VListNumToName(VList*,int);
SQLITE_PRIVATE int sqlite3VListNameToNum(VList*,const char*,int);

SQLITE_PRIVATE CollSeq *sqlite3LocateCollSeq(Parse *pParse, const char*zName);
SQLITE_PRIVATE CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr);
SQLITE_PRIVATE CollSeq *sqlite3ExprNNCollSeq(Parse *pParse, Expr *pExpr);
SQLITE_PRIVATE int sqlite3ExprCollSeqMatch(Parse*,Expr*,Expr*);
SQLITE_PRIVATE Expr *sqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*, int);
SQLITE_PRIVATE Expr *sqlite3ExprAddCollateString(Parse*,Expr*,const char*);
SQLITE_PRIVATE Expr *sqlite3ExprSkipCollate(Expr*);
SQLITE_PRIVATE Expr *sqlite3ExprSkipCollateAndLikely(Expr*);
SQLITE_PRIVATE int sqlite3CheckCollSeq(Parse *, CollSeq *);
SQLITE_PRIVATE int sqlite3WritableSchema(sqlite3*);
SQLITE_PRIVATE int sqlite3CheckObjectName(Parse*, const char*,const char*,const char*);
SQLITE_PRIVATE void sqlite3VdbeSetChanges(sqlite3 *, int);
SQLITE_PRIVATE int sqlite3AddInt64(i64*,i64);
SQLITE_PRIVATE int sqlite3SubInt64(i64*,i64);
SQLITE_PRIVATE int sqlite3MulInt64(i64*,i64);
SQLITE_PRIVATE int sqlite3AbsInt32(int);
#ifdef SQLITE_ENABLE_8_3_NAMES
SQLITE_PRIVATE void sqlite3FileSuffix3(const char*, char*);

SQLITE_PRIVATE Schema *sqlite3SchemaGet(sqlite3 *, Btree *);
SQLITE_PRIVATE int sqlite3SchemaToIndex(sqlite3 *db, Schema *);
SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoAlloc(sqlite3*,int,int);
SQLITE_PRIVATE void sqlite3KeyInfoUnref(KeyInfo*);
SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoRef(KeyInfo*);
SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoOfIndex(Parse*, Index*);
SQLITE_PRIVATE KeyInfo *sqlite3KeyInfoFromExprList(Parse*, ExprList*, int, int);
SQLITE_PRIVATE int sqlite3HasExplicitNulls(Parse*, ExprList*);

#ifdef SQLITE_DEBUG
SQLITE_PRIVATE int sqlite3KeyInfoIsWriteable(KeyInfo*);
#endif
SQLITE_PRIVATE int sqlite3CreateFunc(sqlite3 *, const char *, int, int, void *,
  void (*)(sqlite3_context*,int,sqlite3_value **),
  void (*)(sqlite3_context*,int,sqlite3_value **), 

#ifndef SQLITE_OMIT_SUBQUERY
SQLITE_PRIVATE int sqlite3ExprCheckIN(Parse*, Expr*);
#else
# define sqlite3ExprCheckIN(x,y) SQLITE_OK
#endif

#ifdef SQLITE_ENABLE_STAT4

SQLITE_PRIVATE int sqlite3Stat4ProbeSetValue(
    Parse*,Index*,UnpackedRecord**,Expr*,int,int,int*);
SQLITE_PRIVATE int sqlite3Stat4ValueFromExpr(Parse*, Expr*, u8, sqlite3_value**);
SQLITE_PRIVATE void sqlite3Stat4ProbeFree(UnpackedRecord*);
SQLITE_PRIVATE int sqlite3Stat4Column(sqlite3*, const void*, int, int, sqlite3_value**);
SQLITE_PRIVATE char sqlite3IndexColumnAffinity(sqlite3*, Index*, int);
#endif

#  define sqlite3VtabClear(Y)
#  define sqlite3VtabSync(X,Y) SQLITE_OK
#  define sqlite3VtabRollback(X)
#  define sqlite3VtabCommit(X)
#  define sqlite3VtabInSync(db) 0
#  define sqlite3VtabLock(X)
#  define sqlite3VtabUnlock(X)
#  define sqlite3VtabModuleUnref(D,X)
#  define sqlite3VtabUnlockList(X)
#  define sqlite3VtabSavepoint(X, Y, Z) SQLITE_OK
#  define sqlite3GetVTable(X,Y)  ((VTable*)0)
#else
SQLITE_PRIVATE    void sqlite3VtabClear(sqlite3 *db, Table*);
SQLITE_PRIVATE    void sqlite3VtabDisconnect(sqlite3 *db, Table *p);
SQLITE_PRIVATE    int sqlite3VtabSync(sqlite3 *db, Vdbe*);
SQLITE_PRIVATE    int sqlite3VtabRollback(sqlite3 *db);
SQLITE_PRIVATE    int sqlite3VtabCommit(sqlite3 *db);
SQLITE_PRIVATE    void sqlite3VtabLock(VTable *);
SQLITE_PRIVATE    void sqlite3VtabUnlock(VTable *);
SQLITE_PRIVATE    void sqlite3VtabModuleUnref(sqlite3*,Module*);
SQLITE_PRIVATE    void sqlite3VtabUnlockList(sqlite3*);
SQLITE_PRIVATE    int sqlite3VtabSavepoint(sqlite3 *, int, int);
SQLITE_PRIVATE    void sqlite3VtabImportErrmsg(Vdbe*, sqlite3_vtab*);
SQLITE_PRIVATE    VTable *sqlite3GetVTable(sqlite3*, Table*);
SQLITE_PRIVATE    Module *sqlite3VtabCreateModule(
     sqlite3*,
     const char*,

SQLITE_PRIVATE SQLITE_WSD struct Sqlite3Config sqlite3Config = {
   SQLITE_DEFAULT_MEMSTATUS,  /* bMemstat */
   1,                         /* bCoreMutex */
   SQLITE_THREADSAFE==1,      /* bFullMutex */
   SQLITE_USE_URI,            /* bOpenUri */
   SQLITE_ALLOW_COVERING_INDEX_SCAN,   /* bUseCis */
   0,                         /* bSmallMalloc */
   1,                         /* bExtraSchemaChecks */
   0x7ffffffe,                /* mxStrlen */
   0,                         /* neverCorrupt */
   SQLITE_DEFAULT_LOOKASIDE,  /* szLookaside, nLookaside */
   SQLITE_STMTJRNL_SPILL,     /* nStmtSpill */
   {0,0,0,0,0,0,0,0},         /* m */
   {0,0,0,0,0,0,0,0,0},       /* mutex */
   {0,0,0,0,0,0,0,0,0,0,0,0,0},/* pcache2 */

#ifndef SQLITE_UNTESTABLE
   0,                         /* xTestCallback */
#endif
   0,                         /* bLocaltimeFault */
   0,                         /* bInternalFunctions */
   0x7ffffffe,                /* iOnceResetThreshold */
   SQLITE_DEFAULT_SORTERREF_SIZE,   /* szSorterRef */
   0,                         /* iPrngSeed */
};

/*
** Hash table for global functions - functions common to all
** database connections.  After initialization, this table is
** read-only.
*/

SQLITE_PRIVATE void sqlite3VdbeError(Vdbe*, const char *, ...);
SQLITE_PRIVATE void sqlite3VdbeFreeCursor(Vdbe *, VdbeCursor*);
void sqliteVdbePopStack(Vdbe*,int);
SQLITE_PRIVATE int sqlite3VdbeCursorMoveto(VdbeCursor**, int*);
SQLITE_PRIVATE int sqlite3VdbeCursorRestore(VdbeCursor*);
SQLITE_PRIVATE u32 sqlite3VdbeSerialTypeLen(u32);
SQLITE_PRIVATE u8 sqlite3VdbeOneByteSerialTypeLen(u8);

SQLITE_PRIVATE u32 sqlite3VdbeSerialPut(unsigned char*, Mem*, u32);
SQLITE_PRIVATE u32 sqlite3VdbeSerialGet(const unsigned char*, u32, Mem*);
SQLITE_PRIVATE void sqlite3VdbeDeleteAuxData(sqlite3*, AuxData**, int, int);

int sqlite2BtreeKeyCompare(BtCursor *, const void *, int, int, int *);
SQLITE_PRIVATE int sqlite3VdbeIdxKeyCompare(sqlite3*,VdbeCursor*,UnpackedRecord*,int*);
SQLITE_PRIVATE int sqlite3VdbeIdxRowid(sqlite3*, BtCursor*, i64*);

  return pVfs->xDlSym(pVfs, pHdle, zSym);
}
SQLITE_PRIVATE void sqlite3OsDlClose(sqlite3_vfs *pVfs, void *pHandle){
  pVfs->xDlClose(pVfs, pHandle);
}
#endif /* SQLITE_OMIT_LOAD_EXTENSION */
SQLITE_PRIVATE int sqlite3OsRandomness(sqlite3_vfs *pVfs, int nByte, char *zBufOut){
  if( sqlite3Config.iPrngSeed ){
    memset(zBufOut, 0, nByte);
    if( ALWAYS(nByte>(signed)sizeof(unsigned)) ) nByte = sizeof(unsigned int);
    memcpy(zBufOut, &sqlite3Config.iPrngSeed, nByte);
    return SQLITE_OK;
  }else{
    return pVfs->xRandomness(pVfs, nByte, zBufOut);
  }
  
}
SQLITE_PRIVATE int sqlite3OsSleep(sqlite3_vfs *pVfs, int nMicro){
  return pVfs->xSleep(pVfs, nMicro);
}
SQLITE_PRIVATE int sqlite3OsGetLastError(sqlite3_vfs *pVfs){
  return pVfs->xGetLastError ? pVfs->xGetLastError(pVfs, 0, 0) : 0;
}

  pView = sqlite3TreeViewPush(pView, moreToFollow);
  if( p->pWith ){
    sqlite3TreeViewWith(pView, p->pWith, 1);
    cnt = 1;
    sqlite3TreeViewPush(pView, 1);
  }
  do{
    if( p->selFlags & SF_WhereBegin ){
      sqlite3TreeViewLine(pView, "sqlite3WhereBegin()");
    }else{
      sqlite3TreeViewLine(pView,
        "SELECT%s%s (%u/%p) selFlags=0x%x nSelectRow=%d",
        ((p->selFlags & SF_Distinct) ? " DISTINCT" : ""),
        ((p->selFlags & SF_Aggregate) ? " agg_flag" : ""),
        p->selId, p, p->selFlags,
        (int)p->nSelectRow
      );
    }
    if( cnt++ ) sqlite3TreeViewPop(pView);
    if( p->pPrior ){
      n = 1000;
    }else{
      n = 0;
      if( p->pSrc && p->pSrc->nSrc ) n++;
      if( p->pWhere ) n++;
      if( p->pGroupBy ) n++;
      if( p->pHaving ) n++;
      if( p->pOrderBy ) n++;
      if( p->pLimit ) n++;
#ifndef SQLITE_OMIT_WINDOWFUNC
      if( p->pWin ) n++;
      if( p->pWinDefn ) n++;
#endif
    }
    if( p->pEList ){
      sqlite3TreeViewExprList(pView, p->pEList, n>0, "result-set");
    }
    n--;
#ifndef SQLITE_OMIT_WINDOWFUNC
    if( p->pWin ){
      Window *pX;
      pView = sqlite3TreeViewPush(pView, (n--)>0);
      sqlite3TreeViewLine(pView, "window-functions");
      for(pX=p->pWin; pX; pX=pX->pNextWin){
        sqlite3TreeViewWinFunc(pView, pX, pX->pNextWin!=0);

  char zFlgs[60];
  pView = sqlite3TreeViewPush(pView, moreToFollow);
  if( pExpr==0 ){
    sqlite3TreeViewLine(pView, "nil");
    sqlite3TreeViewPop(pView);
    return;
  }
  if( pExpr->flags || pExpr->affExpr ){
    if( ExprHasProperty(pExpr, EP_FromJoin) ){
      sqlite3_snprintf(sizeof(zFlgs),zFlgs,"  fg.af=%x.%c iRJT=%d",
                       pExpr->flags, pExpr->affExpr ? pExpr->affExpr : 'n',
                       pExpr->iRightJoinTable);
    }else{
      sqlite3_snprintf(sizeof(zFlgs),zFlgs,"  fg.af=%x.%c",
                       pExpr->flags, pExpr->affExpr ? pExpr->affExpr : 'n');
    }
  }else{
    zFlgs[0] = 0;
  }
  switch( pExpr->op ){
    case TK_AGG_COLUMN: {
      sqlite3TreeViewLine(pView, "AGG{%d:%d}%s",

#ifndef SQLITE_OMIT_WINDOWFUNC
        pWin = pExpr->y.pWin;
#else
        pWin = 0;
#endif 
      }
      if( pExpr->op==TK_AGG_FUNCTION ){
        sqlite3TreeViewLine(pView, "AGG_FUNCTION%d %Q%s",
                             pExpr->op2, pExpr->u.zToken, zFlgs);
      }else{
        sqlite3TreeViewLine(pView, "FUNCTION %Q%s", pExpr->u.zToken, zFlgs);
      }
      if( pFarg ){
        sqlite3TreeViewExprList(pView, pFarg, pWin!=0, 0);
      }
#ifndef SQLITE_OMIT_WINDOWFUNC
      if( pWin ){
        sqlite3TreeViewWindow(pView, pWin, 0);

      sqlite3TreeViewExpr(pView, pExpr->pLeft, 1);
      sqlite3TreeViewExprList(pView, pExpr->x.pList, 0, 0);
      break;
    }
#ifndef SQLITE_OMIT_TRIGGER
    case TK_RAISE: {
      const char *zType = "unk";
      switch( pExpr->affExpr ){
        case OE_Rollback:   zType = "rollback";  break;
        case OE_Abort:      zType = "abort";     break;
        case OE_Fail:       zType = "fail";      break;
        case OE_Ignore:     zType = "ignore";    break;
      }
      sqlite3TreeViewLine(pView, "RAISE %s(%Q)", zType, pExpr->u.zToken);
      break;

  }
  if( zBinOp ){
    sqlite3TreeViewLine(pView, "%s%s", zBinOp, zFlgs);
    sqlite3TreeViewExpr(pView, pExpr->pLeft, 1);
    sqlite3TreeViewExpr(pView, pExpr->pRight, 0);
  }else if( zUniOp ){
    sqlite3TreeViewLine(pView, "%s%s", zUniOp, zFlgs);
   sqlite3TreeViewExpr(pView, pExpr->pLeft, 0);
  }
  sqlite3TreeViewPop(pView);
}


/*
** Generate a human-readable explanation of an expression list.

  memcpy(&a, &x, 8);
  e = (a>>52) - 1022;
  return e*10;
}
#endif /* SQLITE_OMIT_VIRTUALTABLE */

#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || \
    defined(SQLITE_ENABLE_STAT4) || \
    defined(SQLITE_EXPLAIN_ESTIMATED_ROWS)
/*
** Convert a LogEst into an integer.
**
** Note that this routine is only used when one or more of various
** non-standard compile-time options is enabled.
*/
SQLITE_PRIVATE u64 sqlite3LogEstToInt(LogEst x){
  u64 n;
  n = x%10;
  x /= 10;
  if( n>=5 ) n -= 2;
  else if( n>=1 ) n -= 1;
#if defined(SQLITE_ENABLE_STMT_SCANSTATUS) || \
    defined(SQLITE_EXPLAIN_ESTIMATED_ROWS)
  if( x>60 ) return (u64)LARGEST_INT64;
#else
  /* If only SQLITE_ENABLE_STAT4 is on, then the largest input
  ** possible to this routine is 310, resulting in a maximum x of 31 */
  assert( x<=60 );
#endif
  return x>=3 ? (n+8)<<(x-3) : (n+8)>>(3-x);
}
#endif /* defined SCANSTAT or STAT4 or ESTIMATED_ROWS */

    /*  89 */ "Offset"           OpHelp("r[P3] = sqlite_offset(P1)"),
    /*  90 */ "Column"           OpHelp("r[P3]=PX"),
    /*  91 */ "Affinity"         OpHelp("affinity(r[P1@P2])"),
    /*  92 */ "MakeRecord"       OpHelp("r[P3]=mkrec(r[P1@P2])"),
    /*  93 */ "Count"            OpHelp("r[P2]=count()"),
    /*  94 */ "ReadCookie"       OpHelp(""),
    /*  95 */ "SetCookie"        OpHelp(""),
    /*  96 */ "ReopenIdx"        OpHelp("root=P2 iDb=P3"),
    /*  97 */ "OpenRead"         OpHelp("root=P2 iDb=P3"),
    /*  98 */ "OpenWrite"        OpHelp("root=P2 iDb=P3"),
    /*  99 */ "BitAnd"           OpHelp("r[P3]=r[P1]&r[P2]"),
    /* 100 */ "BitOr"            OpHelp("r[P3]=r[P1]|r[P2]"),
    /* 101 */ "ShiftLeft"        OpHelp("r[P3]=r[P2]<<r[P1]"),
    /* 102 */ "ShiftRight"       OpHelp("r[P3]=r[P2]>>r[P1]"),
    /* 103 */ "Add"              OpHelp("r[P3]=r[P1]+r[P2]"),
    /* 104 */ "Subtract"         OpHelp("r[P3]=r[P2]-r[P1]"),
    /* 105 */ "Multiply"         OpHelp("r[P3]=r[P1]*r[P2]"),
    /* 106 */ "Divide"           OpHelp("r[P3]=r[P2]/r[P1]"),
    /* 107 */ "Remainder"        OpHelp("r[P3]=r[P2]%r[P1]"),
    /* 108 */ "Concat"           OpHelp("r[P3]=r[P2]+r[P1]"),
    /* 109 */ "OpenDup"          OpHelp(""),
    /* 110 */ "BitNot"           OpHelp("r[P2]= ~r[P1]"),




    /* 111 */ "OpenAutoindex"    OpHelp("nColumn=P2"),
    /* 112 */ "OpenEphemeral"    OpHelp("nColumn=P2"),
    /* 113 */ "String8"          OpHelp("r[P2]='P4'"),
    /* 114 */ "SorterOpen"       OpHelp(""),
    /* 115 */ "SequenceTest"     OpHelp("if( cursor[P1].ctr++ ) pc = P2"),
    /* 116 */ "OpenPseudo"       OpHelp("P3 columns in r[P2]"),
    /* 117 */ "Close"            OpHelp(""),
    /* 118 */ "ColumnsUsed"      OpHelp(""),
    /* 119 */ "SeekHit"          OpHelp("seekHit=P2"),
    /* 120 */ "Sequence"         OpHelp("r[P2]=cursor[P1].ctr++"),

    /* 138 */ "ResetSorter"      OpHelp(""),
    /* 139 */ "CreateBtree"      OpHelp("r[P2]=root iDb=P1 flags=P3"),
    /* 140 */ "SqlExec"          OpHelp(""),
    /* 141 */ "ParseSchema"      OpHelp(""),
    /* 142 */ "LoadAnalysis"     OpHelp(""),
    /* 143 */ "DropTable"        OpHelp(""),
    /* 144 */ "DropIndex"        OpHelp(""),

    /* 145 */ "DropTrigger"      OpHelp(""),
    /* 146 */ "IntegrityCk"      OpHelp(""),
    /* 147 */ "RowSetAdd"        OpHelp("rowset(P1)=r[P2]"),
    /* 148 */ "Real"             OpHelp("r[P2]=P4"),
    /* 149 */ "Param"            OpHelp(""),
    /* 150 */ "FkCounter"        OpHelp("fkctr[P1]+=P2"),
    /* 151 */ "MemMax"           OpHelp("r[P1]=max(r[P1],r[P2])"),
    /* 152 */ "OffsetLimit"      OpHelp("if r[P1]>0 then r[P2]=r[P1]+max(0,r[P3]) else r[P2]=(-1)"),
    /* 153 */ "AggInverse"       OpHelp("accum=r[P3] inverse(r[P2@P5])"),
    /* 154 */ "AggStep"          OpHelp("accum=r[P3] step(r[P2@P5])"),
    /* 155 */ "AggStep1"         OpHelp("accum=r[P3] step(r[P2@P5])"),

  { "lstat",         (sqlite3_syscall_ptr)0,              0 },
#endif
#define osLstat      ((int(*)(const char*,struct stat*))aSyscall[27].pCurrent)

#if defined(__linux__) && defined(SQLITE_ENABLE_BATCH_ATOMIC_WRITE)
# ifdef __ANDROID__
  { "ioctl", (sqlite3_syscall_ptr)(int(*)(int, int, ...))ioctl, 0 },
#define osIoctl ((int(*)(int,int,...))aSyscall[28].pCurrent)
# else
  { "ioctl",         (sqlite3_syscall_ptr)ioctl,          0 },
#define osIoctl ((int(*)(int,unsigned long,...))aSyscall[28].pCurrent)
# endif
#else
  { "ioctl",         (sqlite3_syscall_ptr)0,              0 },
#endif


}; /* End of the overrideable system calls */


/*
** On some systems, calls to fchown() will trigger a message in a security
** log if they come from non-root processes.  So avoid calling fchown() if

                     || pInode->fileId.ino!=(u64)sStat.st_ino) ){
       pInode = pInode->pNext;
    }
    if( pInode ){
      UnixUnusedFd **pp;
      assert( sqlite3_mutex_notheld(pInode->pLockMutex) );
      sqlite3_mutex_enter(pInode->pLockMutex);
      flags &= (SQLITE_OPEN_READONLY|SQLITE_OPEN_READWRITE);
      for(pp=&pInode->pUnused; *pp && (*pp)->flags!=flags; pp=&((*pp)->pNext));
      pUnused = *pp;
      if( pUnused ){
        *pp = pUnused->pNext;
      }
      sqlite3_mutex_leave(pInode->pLockMutex);
    }

  assert( fd>=0 );
  if( pOutFlags ){
    *pOutFlags = flags;
  }

  if( p->pPreallocatedUnused ){
    p->pPreallocatedUnused->fd = fd;
    p->pPreallocatedUnused->flags = 
                          flags & (SQLITE_OPEN_READONLY|SQLITE_OPEN_READWRITE);
  }

  if( isDelete ){
#if OS_VXWORKS
    zPath = zName;
#elif defined(SQLITE_UNLINK_AFTER_CLOSE)
    zPath = sqlite3_mprintf("%s", zName);

      }
      return rc;
    }
    default: {
      assert( 0 );  /* The call assures that only valid opcodes are sent */
    }
  }
  /*NOTREACHED*/ assert(0);
  return SQLITE_ERROR;
}

/*
** Within this division (the proxying locking implementation) the procedures
** above this point are all utilities.  The lock-related methods of the
** proxy-locking sqlite3_io_method object follow.

  DWORD flags = FILE_MAP_WRITE | FILE_MAP_READ;
  int rc = SQLITE_OK;

  if( !pShm ){
    rc = winOpenSharedMemory(pDbFd);
    if( rc!=SQLITE_OK ) return rc;
    pShm = pDbFd->pShm;
    assert( pShm!=0 );
  }
  pShmNode = pShm->pShmNode;

  sqlite3_mutex_enter(pShmNode->mutex);
  if( pShmNode->isUnlocked ){
    rc = winLockSharedMemory(pShmNode);
    if( rc!=SQLITE_OK ) goto shmpage_out;

      if( rc!=SQLITE_OK ){
        OSTRACE(("FETCH pid=%lu, pFile=%p, rc=%s\n",
                 osGetCurrentProcessId(), pFd, sqlite3ErrName(rc)));
        return rc;
      }
    }
    if( pFd->mmapSize >= iOff+nAmt ){
      assert( pFd->pMapRegion!=0 );
      *pp = &((u8 *)pFd->pMapRegion)[iOff];
      pFd->nFetchOut++;
    }
  }
#endif

  OSTRACE(("FETCH pid=%lu, pFile=%p, pp=%p, *pp=%p, rc=SQLITE_OK\n",

*/
SQLITE_PRIVATE int sqlite3PcacheInitialize(void){
  if( sqlite3GlobalConfig.pcache2.xInit==0 ){
    /* IMPLEMENTATION-OF: R-26801-64137 If the xInit() method is NULL, then the
    ** built-in default page cache is used instead of the application defined
    ** page cache. */
    sqlite3PCacheSetDefault();
    assert( sqlite3GlobalConfig.pcache2.xInit!=0 );
  }
  return sqlite3GlobalConfig.pcache2.xInit(sqlite3GlobalConfig.pcache2.pArg);
}
SQLITE_PRIVATE void sqlite3PcacheShutdown(void){
  if( sqlite3GlobalConfig.pcache2.xShutdown ){
    /* IMPLEMENTATION-OF: R-26000-56589 The xShutdown() method may be NULL. */
    sqlite3GlobalConfig.pcache2.xShutdown(sqlite3GlobalConfig.pcache2.pArg);

*/
static PgHdr1 *pcache1AllocPage(PCache1 *pCache, int benignMalloc){
  PgHdr1 *p = 0;
  void *pPg;

  assert( sqlite3_mutex_held(pCache->pGroup->mutex) );
  if( pCache->pFree || (pCache->nPage==0 && pcache1InitBulk(pCache)) ){
    assert( pCache->pFree!=0 );
    p = pCache->pFree;
    pCache->pFree = p->pNext;
    p->pNext = 0;
  }else{
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
    /* The group mutex must be released before pcache1Alloc() is called. This
    ** is because it might call sqlite3_release_memory(), which assumes that 

      bSync = (w.iSyncPoint==iOffset);
      testcase( bSync );
      while( iOffset<w.iSyncPoint ){
        rc = walWriteOneFrame(&w, pLast, nTruncate, iOffset);
        if( rc ) return rc;
        iOffset += szFrame;
        nExtra++;
        assert( pLast!=0 );
      }
    }
    if( bSync ){
      assert( rc==SQLITE_OK );
      rc = sqlite3OsSync(w.pFd, WAL_SYNC_FLAGS(sync_flags));
    }
  }

  */
  iFrame = pWal->hdr.mxFrame;
  for(p=pList; p && rc==SQLITE_OK; p=p->pDirty){
    if( (p->flags & PGHDR_WAL_APPEND)==0 ) continue;
    iFrame++;
    rc = walIndexAppend(pWal, iFrame, p->pgno);
  }
  assert( pLast!=0 || nExtra==0 );
  while( rc==SQLITE_OK && nExtra>0 ){
    iFrame++;
    nExtra--;
    rc = walIndexAppend(pWal, iFrame, pLast->pgno);
  }

  if( rc==SQLITE_OK ){

  */
  testcase( gap+2==top );
  testcase( gap+1==top );
  testcase( gap==top );
  if( (data[hdr+2] || data[hdr+1]) && gap+2<=top ){
    u8 *pSpace = pageFindSlot(pPage, nByte, &rc);
    if( pSpace ){
      assert( pSpace+nByte<=data+pPage->pBt->usableSize );
      if( (*pIdx = (int)(pSpace-data))<=gap ){
        return SQLITE_CORRUPT_PAGE(pPage);
      }else{
        return SQLITE_OK;
      }
    }else if( rc ){
      return rc;
    }
  }

  /* The request could not be fulfilled using a freelist slot.  Check
  ** to see if defragmentation is necessary.

        ){
          sqlite3_file *fd = sqlite3PagerFile(pBt->pPager);
          u8 aSave[4];
          u8 *aWrite = &pBuf[-4];
          assert( aWrite>=pBufStart );                         /* due to (6) */
          memcpy(aSave, aWrite, 4);
          rc = sqlite3OsRead(fd, aWrite, a+4, (i64)pBt->pageSize*(nextPage-1));
          if( rc && nextPage>pBt->nPage ) rc = SQLITE_CORRUPT_BKPT;
          nextPage = get4byte(aWrite);
          memcpy(aWrite, aSave, 4);
        }else
#endif

        {
          DbPage *pDbPage;

  assert( *pRC==SQLITE_OK );
  assert( i>=0 && i<=pPage->nCell+pPage->nOverflow );
  assert( MX_CELL(pPage->pBt)<=10921 );
  assert( pPage->nCell<=MX_CELL(pPage->pBt) || CORRUPT_DB );
  assert( pPage->nOverflow<=ArraySize(pPage->apOvfl) );
  assert( ArraySize(pPage->apOvfl)==ArraySize(pPage->aiOvfl) );
  assert( sqlite3_mutex_held(pPage->pBt->mutex) );





  assert( sz==pPage->xCellSize(pPage, pCell) || CORRUPT_DB );
  assert( pPage->nFree>=0 );
  if( pPage->nOverflow || sz+2>pPage->nFree ){
    if( pTemp ){
      memcpy(pTemp, pCell, sz);
      pCell = pTemp;
    }
    if( iChild ){

  u8 *pTmp = sqlite3PagerTempSpace(pPg->pBt->pPager);
  u8 *pData;
  int k;                          /* Current slot in pCArray->apEnd[] */
  u8 *pSrcEnd;                    /* Current pCArray->apEnd[k] value */

  assert( i<iEnd );
  j = get2byte(&aData[hdr+5]);
  if( j>(u32)usableSize ){ j = 0; }
  memcpy(&pTmp[j], &aData[j], usableSize - j);

  for(k=0; pCArray->ixNx[k]<=i && ALWAYS(k<NB*2); k++){}
  pSrcEnd = pCArray->apEnd[k];

  pData = pEnd;
  while( 1/*exit by break*/ ){

  assert( CORRUPT_DB || pPg->hdrOffset==0 );    /* Never called on page 1 */
  if( iEnd<=iFirst ) return 0;
  for(k=0; pCArray->ixNx[k]<=i && ALWAYS(k<NB*2); k++){}
  pEnd = pCArray->apEnd[k];
  while( 1 /*Exit by break*/ ){
    int sz, rc;
    u8 *pSlot;
    assert( pCArray->szCell[i]!=0 );
    sz = pCArray->szCell[i];
    if( (aData[1]==0 && aData[2]==0) || (pSlot = pageFindSlot(pPg,sz,&rc))==0 ){
      if( (pData - pBegin)<sz ) return 1;
      pData -= sz;
      pSlot = pData;
    }
    /* pSlot and pCArray->apCell[i] will never overlap on a well-formed
    ** database.  But they might for a corrupt database.  Hence use memmove()

    int iCell = (iOld + pPg->aiOvfl[i]) - iNew;
    if( iCell>=0 && iCell<nNew ){
      pCellptr = &pPg->aCellIdx[iCell * 2];
      if( nCell>iCell ){
        memmove(&pCellptr[2], pCellptr, (nCell - iCell) * 2);
      }
      nCell++;
      cachedCellSize(pCArray, iCell+iNew);
      if( pageInsertArray(
            pPg, pBegin, &pData, pCellptr,
            iCell+iNew, 1, pCArray
      ) ) goto editpage_fail;
    }
  }

    ** This must be done in advance.  Once the balance starts, the cell
    ** offset section of the btree page will be overwritten and we will no
    ** long be able to find the cells if a pointer to each cell is not saved
    ** first.
    */
    memset(&b.szCell[b.nCell], 0, sizeof(b.szCell[0])*(limit+pOld->nOverflow));
    if( pOld->nOverflow>0 ){
      if( NEVER(limit<pOld->aiOvfl[0]) ){
        rc = SQLITE_CORRUPT_BKPT;
        goto balance_cleanup;
      }
      limit = pOld->aiOvfl[0];
      for(j=0; j<limit; j++){
        b.apCell[b.nCell] = aData + (maskPage & get2byteAligned(piCell));
        piCell += 2;

    nNew>=4 ? apNew[3]->pgno : 0, nNew>=4 ? szNew[3] : 0,
    nNew>=4 ? cntNew[3] - cntNew[2] - !leafData : 0,
    nNew>=5 ? apNew[4]->pgno : 0, nNew>=5 ? szNew[4] : 0,
    nNew>=5 ? cntNew[4] - cntNew[3] - !leafData : 0
  ));

  assert( sqlite3PagerIswriteable(pParent->pDbPage) );
  assert( nNew>=1 && nNew<=ArraySize(apNew) );
  assert( apNew[nNew-1]!=0 );
  put4byte(pRight, apNew[nNew-1]->pgno);

  /* If the sibling pages are not leaves, ensure that the right-child pointer
  ** of the right-most new sibling page is set to the value that was 
  ** originally in the same field of the right-most old sibling page. */
  if( (pageFlags & PTF_LEAF)==0 && nOld!=nNew ){
    MemPage *pOld = (nNew>nOld ? apNew : apOld)[nOld-1];

  u8 aBalanceQuickSpace[13];
  u8 *pFree = 0;

  VVA_ONLY( int balance_quick_called = 0 );
  VVA_ONLY( int balance_deeper_called = 0 );

  do {
    int iPage;
    MemPage *pPage = pCur->pPage;

    if( NEVER(pPage->nFree<0) && btreeComputeFreeSpace(pPage) ) break;
    if( pPage->nOverflow==0 && pPage->nFree<=nMin ){
      break;
    }else if( (iPage = pCur->iPage)==0 ){
      if( pPage->nOverflow ){
        /* The root page of the b-tree is overfull. In this case call the
        ** balance_deeper() function to create a new child for the root-page
        ** and copy the current contents of the root-page to it. The
        ** next iteration of the do-loop will balance the child page.
        */ 
        assert( balance_deeper_called==0 );
        VVA_ONLY( balance_deeper_called++ );
        rc = balance_deeper(pPage, &pCur->apPage[1]);
        if( rc==SQLITE_OK ){
          pCur->iPage = 1;
          pCur->ix = 0;
          pCur->aiIdx[0] = 0;
          pCur->apPage[0] = pPage;
          pCur->pPage = pCur->apPage[1];
          assert( pCur->pPage->nOverflow );
        }
      }else{
        break;
      }


    }else{
      MemPage * const pParent = pCur->apPage[iPage-1];
      int const iIdx = pCur->aiIdx[iPage-1];

      rc = sqlite3PagerWrite(pParent->pDbPage);
      if( rc==SQLITE_OK && pParent->nFree<0 ){
        rc = btreeComputeFreeSpace(pParent);

  int nTotal = pX->nData + pX->nZero; /* Total bytes of to write */
  int rc;                             /* Return code */
  MemPage *pPage = pCur->pPage;       /* Page being written */
  BtShared *pBt;                      /* Btree */
  Pgno ovflPgno;                      /* Next overflow page to write */
  u32 ovflPageSize;                   /* Size to write on overflow page */

  if( pCur->info.pPayload + pCur->info.nLocal > pPage->aDataEnd
   || pCur->info.pPayload < pPage->aData + pPage->cellOffset
  ){
    return SQLITE_CORRUPT_BKPT;
  }
  /* Overwrite the local portion first */
  rc = btreeOverwriteContent(pPage, pCur->info.pPayload, pX,
                             0, pCur->info.nLocal);
  if( rc ) return rc;
  if( pCur->info.nLocal==nTotal ) return SQLITE_OK;

      goto end_insert;
    }
    oldCell = findCell(pPage, idx);
    if( !pPage->leaf ){
      memcpy(newCell, oldCell, 4);
    }
    rc = clearCell(pPage, oldCell, &info);
    testcase( pCur->curFlags & BTCF_ValidOvfl );
    invalidateOverflowCache(pCur);
    if( info.nSize==szNew && info.nLocal==info.nPayload 
     && (!ISAUTOVACUUM || szNew<pPage->minLocal)
    ){
      /* Overwrite the old cell with the new if they are the same size.
      ** We could also try to do this if the old cell is smaller, then add
      ** the leftover space to the free list.  But experiments show that
      ** doing that is no faster then skipping this optimization and just
      ** calling dropCell() and insertCell(). 
      **
      ** This optimization cannot be used on an autovacuum database if the
      ** new entry uses overflow pages, as the insertCell() call below is
      ** necessary to add the PTRMAP_OVERFLOW1 pointer-map entry.  */
      assert( rc==SQLITE_OK ); /* clearCell never fails when nLocal==nPayload */
      if( oldCell < pPage->aData+pPage->hdrOffset+10 ){
        return SQLITE_CORRUPT_BKPT;
      }
      if( oldCell+szNew > pPage->aDataEnd ){
        return SQLITE_CORRUPT_BKPT;
      }
      memcpy(oldCell, newCell, szNew);
      return SQLITE_OK;
    }
    dropCell(pPage, idx, info.nSize, &rc);
    if( rc ) goto end_insert;
  }else if( loc<0 && pPage->nCell>0 ){
    assert( pPage->leaf );

  /* Detach this backup from the source pager. */
  if( p->pDestDb ){
    p->pSrc->nBackup--;
  }
  if( p->isAttached ){
    pp = sqlite3PagerBackupPtr(sqlite3BtreePager(p->pSrc));
    assert( pp!=0 );
    while( *pp!=p ){
      pp = &(*pp)->pNext;
      assert( pp!=0 );
    }
    *pp = p->pNext;
  }

  /* If a transaction is still open on the Btree, roll it back. */
  sqlite3BtreeRollback(p->pDest, SQLITE_OK, 0);

** Otherwise, if the second argument is non-zero, then this function is 
** being called indirectly by sqlite3Stat4ProbeSetValue(). If it has not
** already been allocated, allocate the UnpackedRecord structure that 
** that function will return to its caller here. Then return a pointer to
** an sqlite3_value within the UnpackedRecord.a[] array.
*/
static sqlite3_value *valueNew(sqlite3 *db, struct ValueNewStat4Ctx *p){
#ifdef SQLITE_ENABLE_STAT4
  if( p ){
    UnpackedRecord *pRec = p->ppRec[0];

    if( pRec==0 ){
      Index *pIdx = p->pIdx;      /* Index being probed */
      int nByte;                  /* Bytes of space to allocate */
      int i;                      /* Counter variable */

    }
  
    pRec->nField = p->iVal+1;
    return &pRec->aMem[p->iVal];
  }
#else
  UNUSED_PARAMETER(p);
#endif /* defined(SQLITE_ENABLE_STAT4) */
  return sqlite3ValueNew(db);
}

/*
** The expression object indicated by the second argument is guaranteed
** to be a scalar SQL function. If
**

** If the result is a text value, the sqlite3_value object uses encoding 
** enc.
**
** If the conditions above are not met, this function returns SQLITE_OK
** and sets (*ppVal) to NULL. Or, if an error occurs, (*ppVal) is set to
** NULL and an SQLite error code returned.
*/
#ifdef SQLITE_ENABLE_STAT4
static int valueFromFunction(
  sqlite3 *db,                    /* The database connection */
  Expr *p,                        /* The expression to evaluate */
  u8 enc,                         /* Encoding to use */
  u8 aff,                         /* Affinity to use */
  sqlite3_value **ppVal,          /* Write the new value here */
  struct ValueNewStat4Ctx *pCtx   /* Second argument for valueNew() */

  }

  *ppVal = pVal;
  return rc;
}
#else
# define valueFromFunction(a,b,c,d,e,f) SQLITE_OK
#endif /* defined(SQLITE_ENABLE_STAT4) */

/*
** Extract a value from the supplied expression in the manner described
** above sqlite3ValueFromExpr(). Allocate the sqlite3_value object
** using valueNew().
**
** If pCtx is NULL and an error occurs after the sqlite3_value object

  sqlite3_value *pVal = 0;
  int negInt = 1;
  const char *zNeg = "";
  int rc = SQLITE_OK;

  assert( pExpr!=0 );
  while( (op = pExpr->op)==TK_UPLUS || op==TK_SPAN ) pExpr = pExpr->pLeft;
#if defined(SQLITE_ENABLE_STAT4)
  if( op==TK_REGISTER ) op = pExpr->op2;
#else
  if( NEVER(op==TK_REGISTER) ) op = pExpr->op2;
#endif

  /* Compressed expressions only appear when parsing the DEFAULT clause
  ** on a table column definition, and hence only when pCtx==0.  This

    zVal = &pExpr->u.zToken[2];
    nVal = sqlite3Strlen30(zVal)-1;
    assert( zVal[nVal]=='\'' );
    sqlite3VdbeMemSetStr(pVal, sqlite3HexToBlob(db, zVal, nVal), nVal/2,
                         0, SQLITE_DYNAMIC);
  }
#endif
#ifdef SQLITE_ENABLE_STAT4
  else if( op==TK_FUNCTION && pCtx!=0 ){
    rc = valueFromFunction(db, pExpr, enc, affinity, &pVal, pCtx);
  }
#endif
  else if( op==TK_TRUEFALSE ){
    pVal = valueNew(db, pCtx);
    if( pVal ){
      pVal->flags = MEM_Int;
      pVal->u.i = pExpr->u.zToken[4]==0;
    }
  }

  *ppVal = pVal;
  return rc;

no_mem:
#ifdef SQLITE_ENABLE_STAT4
  if( pCtx==0 || pCtx->pParse->nErr==0 )
#endif
    sqlite3OomFault(db);
  sqlite3DbFree(db, zVal);
  assert( *ppVal==0 );
#ifdef SQLITE_ENABLE_STAT4
  if( pCtx==0 ) sqlite3ValueFree(pVal);
#else
  assert( pCtx==0 ); sqlite3ValueFree(pVal);
#endif
  return SQLITE_NOMEM_BKPT;
}

  u8 enc,                   /* Encoding to use */
  u8 affinity,              /* Affinity to use */
  sqlite3_value **ppVal     /* Write the new value here */
){
  return pExpr ? valueFromExpr(db, pExpr, enc, affinity, ppVal, 0) : 0;
}

#ifdef SQLITE_ENABLE_STAT4

















































/*
** Attempt to extract a value from pExpr and use it to construct *ppVal.
**
** If pAlloc is not NULL, then an UnpackedRecord object is created for
** pAlloc if one does not exist and the new value is added to the
** UnpackedRecord object.
**

#endif


/*
** Change the value of the opcode, or P1, P2, P3, or P5 operands
** for a specific instruction.
*/
SQLITE_PRIVATE void sqlite3VdbeChangeOpcode(Vdbe *p, int addr, u8 iNewOpcode){
  sqlite3VdbeGetOp(p,addr)->opcode = iNewOpcode;
}
SQLITE_PRIVATE void sqlite3VdbeChangeP1(Vdbe *p, int addr, int val){
  sqlite3VdbeGetOp(p,addr)->p1 = val;
}
SQLITE_PRIVATE void sqlite3VdbeChangeP2(Vdbe *p, int addr, int val){
  sqlite3VdbeGetOp(p,addr)->p2 = val;
}
SQLITE_PRIVATE void sqlite3VdbeChangeP3(Vdbe *p, int addr, int val){
  sqlite3VdbeGetOp(p,addr)->p3 = val;
}
SQLITE_PRIVATE void sqlite3VdbeChangeP5(Vdbe *p, u16 p5){
  assert( p->nOp>0 || p->db->mallocFailed );
  if( p->nOp>0 ) p->aOp[p->nOp-1].p5 = p5;
}

  StrAccum x;
  assert( nTemp>=20 );
  sqlite3StrAccumInit(&x, 0, zTemp, nTemp, 0);
  switch( pOp->p4type ){
    case P4_KEYINFO: {
      int j;
      KeyInfo *pKeyInfo = pOp->p4.pKeyInfo;
      assert( pKeyInfo->aSortFlags!=0 );
      sqlite3_str_appendf(&x, "k(%d", pKeyInfo->nKeyField);
      for(j=0; j<pKeyInfo->nKeyField; j++){
        CollSeq *pColl = pKeyInfo->aColl[j];
        const char *zColl = pColl ? pColl->zName : "";
        if( strcmp(zColl, "BINARY")==0 ) zColl = "B";
        sqlite3_str_appendf(&x, ",%s%s%s", 
               (pKeyInfo->aSortFlags[j] & KEYINFO_ORDER_DESC) ? "-" : "", 
               (pKeyInfo->aSortFlags[j] & KEYINFO_ORDER_BIGNULL)? "N." : "", 
               zColl);
      }
      sqlite3_str_append(&x, ")", 1);
      break;
    }
#ifdef SQLITE_ENABLE_CURSOR_HINTS
    case P4_EXPR: {
      displayP4Expr(&x, pOp->p4.pExpr);

      ** main program. */
      pOp = &p->aOp[i];
    }else{
      /* We are currently listing subprograms.  Figure out which one and
      ** pick up the appropriate opcode. */
      int j;
      i -= p->nOp;
      assert( apSub!=0 );
      assert( nSub>0 );
      for(j=0; i>=apSub[j]->nOp; j++){
        i -= apSub[j]->nOp;
        assert( i<apSub[j]->nOp || j+1<nSub );
      }
      pOp = &apSub[j]->aOp[i];
    }

    /* When an OP_Program opcode is encounter (the only opcode that has
    ** a P4_SUBPROGRAM argument), expand the size of the array of subprograms
    ** kept in p->aMem[9].z to hold the new program - assuming this subprogram

**    N>=12 and even       (N-12)/2        BLOB
**    N>=13 and odd        (N-13)/2        text
**
** The 8 and 9 types were added in 3.3.0, file format 4.  Prior versions
** of SQLite will not understand those serial types.
*/

#if 0 /* Inlined into the OP_MakeRecord opcode */
/*
** Return the serial-type for the value stored in pMem.
**
** This routine might convert a large MEM_IntReal value into MEM_Real.
**
** 2019-07-11:  The primary user of this subroutine was the OP_MakeRecord
** opcode in the byte-code engine.  But by moving this routine in-line, we
** can omit some redundant tests and make that opcode a lot faster.  So
** this routine is now only used by the STAT3 logic and STAT3 support has
** ended.  The code is kept here for historical reference only.
*/
SQLITE_PRIVATE u32 sqlite3VdbeSerialType(Mem *pMem, int file_format, u32 *pLen){
  int flags = pMem->flags;
  u32 n;

  assert( pLen!=0 );
  if( flags&MEM_Null ){

  n = (u32)pMem->n;
  if( flags & MEM_Zero ){
    n += pMem->u.nZero;
  }
  *pLen = n;
  return ((n*2) + 12 + ((flags&MEM_Str)!=0));
}
#endif /* inlined into OP_MakeRecord */

/*
** The sizes for serial types less than 128
*/
static const u8 sqlite3SmallTypeSizes[] = {
        /*  0   1   2   3   4   5   6   7   8   9 */   
/*   0 */   0,  1,  2,  3,  4,  6,  8,  8,  0,  0,

){
  UnpackedRecord *p;              /* Unpacked record to return */
  int nByte;                      /* Number of bytes required for *p */
  nByte = ROUND8(sizeof(UnpackedRecord)) + sizeof(Mem)*(pKeyInfo->nKeyField+1);
  p = (UnpackedRecord *)sqlite3DbMallocRaw(pKeyInfo->db, nByte);
  if( !p ) return 0;
  p->aMem = (Mem*)&((char*)p)[ROUND8(sizeof(UnpackedRecord))];
  assert( pKeyInfo->aSortFlags!=0 );
  p->pKeyInfo = pKeyInfo;
  p->nField = pKeyInfo->nKeyField + 1;
  return p;
}

/*
** Given the nKey-byte encoding of a record in pKey[], populate the 

  */
  /*  mem1.u.i = 0;  // not needed, here to silence compiler warning */
  
  idx1 = getVarint32(aKey1, szHdr1);
  if( szHdr1>98307 ) return SQLITE_CORRUPT;
  d1 = szHdr1;
  assert( pKeyInfo->nAllField>=pPKey2->nField || CORRUPT_DB );
  assert( pKeyInfo->aSortFlags!=0 );
  assert( pKeyInfo->nKeyField>0 );
  assert( idx1<=szHdr1 || CORRUPT_DB );
  do{
    u32 serial_type1;

    /* Read the serial types for the next element in each key. */
    idx1 += getVarint32( aKey1+idx1, serial_type1 );

    /* Do the comparison
    */
    rc = sqlite3MemCompare(&mem1, &pPKey2->aMem[i],
                           pKeyInfo->nAllField>i ? pKeyInfo->aColl[i] : 0);
    if( rc!=0 ){
      assert( mem1.szMalloc==0 );  /* See comment below */
      if( (pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_BIGNULL)
       && ((mem1.flags & MEM_Null) || (pPKey2->aMem[i].flags & MEM_Null)) 
      ){
        rc = -rc;
      }
      if( pKeyInfo->aSortFlags[i] & KEYINFO_ORDER_DESC ){
        rc = -rc;  /* Invert the result for DESC sort order. */
      }
      goto debugCompareEnd;
    }
    i++;
  }while( idx1<szHdr1 && i<pPKey2->nField );

    pPKey2->errCode = (u8)SQLITE_CORRUPT_BKPT;
    return 0;  /* Corruption */
  }

  VVA_ONLY( mem1.szMalloc = 0; ) /* Only needed by assert() statements */
  assert( pPKey2->pKeyInfo->nAllField>=pPKey2->nField 
       || CORRUPT_DB );
  assert( pPKey2->pKeyInfo->aSortFlags!=0 );
  assert( pPKey2->pKeyInfo->nKeyField>0 );
  assert( idx1<=szHdr1 || CORRUPT_DB );
  do{
    u32 serial_type;

    /* RHS is an integer */
    if( pRhs->flags & (MEM_Int|MEM_IntReal) ){