Fossil

** the "--dotfiles" option to the command-line.
**
** The --ignore option is a comma-separate list of glob patterns for files
** to be excluded.  Example:  '*.o,*.obj,*.exe'  If the --ignore option
** does not appear on the command line then the "ignore-glob" setting is
** used.
**




** Options:
**

**    --dotfiles       include files beginning with a dot (".")   
**    --ignore <CSG>   ignore files matching patterns from the 
**                     comma separated list of glob patterns.
** 
** See also: addremove, rm
*/
void add_cmd(void){
  int i;                     /* Loop counter */
  int vid;                   /* Currently checked out version */
  int nRoot;                 /* Full path characters in g.zLocalRoot */
................................................................................
**   ""                 (empty string) if filenames are case sensitive
**
**   "COLLATE nocase"   if filenames are not case sensitive.
*/
const char *filename_collation(void){
  return filenames_are_case_sensitive() ? "" : "COLLATE nocase";
}













/*
** COMMAND: addremove
**
** Usage: %fossil addremove ?OPTIONS?
**
** Do all necessary "add" and "rm" commands to synchronize the repository
................................................................................
**
** The command does not "commit".  You must run the "commit" separately
** as a separate step.
**
** Files and directories whose names begin with "." are ignored unless
** the --dotfiles option is used.
**
** The --ignore option overrides the "ignore-glob" setting.  See

** documentation on the "settings" command for further information.
**
** The --test option shows what would happen without actually doing anything.
**
** This command can be used to track third party software.
** 
** Options: 

**   --dotfiles       include files beginning with a dot (".")   
**   --ignore <CSG>   ignore files matching patterns from the 
**                    comma separated list of glob patterns.
**   --test           If given, show what would be done without doing so.

**
** See also: add, rm
*/
void addremove_cmd(void){
  Blob path;
  const char *zIgnoreFlag = find_option("ignore",0,1);
  int allFlag = find_option("dotfiles",0,0)!=0;

** the "--dotfiles" option to the command-line.
**
** The --ignore option is a comma-separate list of glob patterns for files
** to be excluded.  Example:  '*.o,*.obj,*.exe'  If the --ignore option
** does not appear on the command line then the "ignore-glob" setting is
** used.
**
** The --case-sensitive option determines whether or not filenames should
** be treated case sensitive or not. If the option is not given, the default
** depends on the global setting, or the operating system default, if not set.
**
** Options:
**
**    --case-sensitive <BOOL> override case-sensitive setting
**    --dotfiles              include files beginning with a dot (".")   
**    --ignore <CSG>          ignore files matching patterns from the 
**                            comma separated list of glob patterns.
** 
** See also: addremove, rm
*/
void add_cmd(void){
  int i;                     /* Loop counter */
  int vid;                   /* Currently checked out version */
  int nRoot;                 /* Full path characters in g.zLocalRoot */
................................................................................
**   ""                 (empty string) if filenames are case sensitive
**
**   "COLLATE nocase"   if filenames are not case sensitive.
*/
const char *filename_collation(void){
  return filenames_are_case_sensitive() ? "" : "COLLATE nocase";
}

/*
** Do a strncmp() operation which is either case-sensitive or not
** depending on the setting of filenames_are_case_sensitive().
*/
int filenames_strncmp(const char *zA, const char *zB, int nByte){
  if( filenames_are_case_sensitive() ){
    return fossil_strncmp(zA,zB,nByte);
  }else{
    return fossil_strnicmp(zA,zB,nByte);
  }
}

/*
** COMMAND: addremove
**
** Usage: %fossil addremove ?OPTIONS?
**
** Do all necessary "add" and "rm" commands to synchronize the repository
................................................................................
**
** The command does not "commit".  You must run the "commit" separately
** as a separate step.
**
** Files and directories whose names begin with "." are ignored unless
** the --dotfiles option is used.
**
** The --ignore option overrides the "ignore-glob" setting, as does the
** --case-sensitive option with the "case-sensitive" setting. See the
** documentation on the "settings" command for further information.
**
** The --test option shows what would happen without actually doing anything.
**
** This command can be used to track third party software.
** 
** Options: 
**   --case-sensitive <BOOL> override case-sensitive setting
**   --dotfiles              include files beginning with a dot (".")   
**   --ignore <CSG>          ignore files matching patterns from the 
**                           comma separated list of glob patterns.

**   --test                  If given, display instead of run actions
**
** See also: add, rm
*/
void addremove_cmd(void){
  Blob path;
  const char *zIgnoreFlag = find_option("ignore",0,1);
  int allFlag = find_option("dotfiles",0,0)!=0;

    Blob manifest;
    Blob cksum;
    char *zUUID;
    const char *zComment;
    char *zDate;
    int rid;
    int i, n;



    db_begin_transaction();
    blob_init(&content, aContent, szContent);







    rid = content_put(&content);
    zUUID = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", rid);
    blob_zero(&manifest);
    for(i=n=0; zName[i]; i++){
      if( zName[i]=='/' || zName[i]=='\\' ) n = i;
    }
    zName += n;
    if( zName[0]==0 ) zName = "unknown";
    blob_appendf(&manifest, "A %F %F %s\n", zName, zTarget, zUUID);

    zComment = PD("comment", "");
    while( fossil_isspace(zComment[0]) ) zComment++;
    n = strlen(zComment);
    while( n>0 && fossil_isspace(zComment[n-1]) ){ n--; }
    if( n>0 ){
      blob_appendf(&manifest, "C %F\n", zComment);
    }

    Blob manifest;
    Blob cksum;
    char *zUUID;
    const char *zComment;
    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);
    manifest_destroy(pManifest);
    blob_init(&content, aContent, szContent);
    if( pManifest ){
      blob_compress(&content, &content);
      addCompress = 1;
    }
    rid = content_put(&content);
    zUUID = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", rid);
    blob_zero(&manifest);
    for(i=n=0; zName[i]; i++){
      if( zName[i]=='/' || zName[i]=='\\' ) n = i;
    }
    zName += n;
    if( zName[0]==0 ) zName = "unknown";
    blob_appendf(&manifest, "A %F%s %F %s\n",
                 zName, addCompress ? ".gz" : "", zTarget, zUUID);
    zComment = PD("comment", "");
    while( fossil_isspace(zComment[0]) ) zComment++;
    n = strlen(zComment);
    while( n>0 && fossil_isspace(zComment[n-1]) ){ n--; }
    if( n>0 ){
      blob_appendf(&manifest, "C %F\n", zComment);
    }

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

/*
**  fossil branch new    BRANCH-NAME ?ORIGIN-CHECK-IN? ?-bgcolor COLOR?
**  argv0  argv1  argv2  argv3       argv4
*/
void branch_new(void){
  int rootid;            /* RID of the root check-in - what we branch off of */
  int brid;              /* RID of the branch check-in */
  int noSign;            /* True if the branch is unsigned */
  int i;                 /* Loop counter */
  char *zUuid;           /* Artifact ID of origin */
................................................................................
  noSign = find_option("nosign","",0)!=0;
  zColor = find_option("bgcolor","c",1);
  isPrivate = find_option("private",0,0)!=0;
  zDateOvrd = find_option("date-override",0,1);
  zUserOvrd = find_option("user-override",0,1);
  verify_all_options();
  if( g.argc<5 ){
    usage("new BRANCH-NAME CHECK-IN ?-bgcolor COLOR?");
  }
  db_find_and_open_repository(0, 0);  
  noSign = db_get_int("omitsign", 0)|noSign;
  
  /* fossil branch new name */
  zBranch = g.argv[3];
  if( zBranch==0 || zBranch[0]==0 ){
................................................................................
** COMMAND: branch
**
** Usage: %fossil branch SUBCOMMAND ... ?OPTIONS?
**
** Run various subcommands to manage branches of the open repository or
** of the repository identified by the -R or --repository option.
**
**    %fossil branch new BRANCH-NAME BASIS ?--bgcolor COLOR? ?--private?
**
**        Create a new branch BRANCH-NAME off of check-in BASIS.
**        You can optionally give the branch a default color.  The
**        --private option makes the branch private.




**
**    %fossil branch list ?-all | --closed?
**    %fossil branch ls ?-all | --closed?
**
**        List all branches.  Use --all or --closed to list all branches
**        or closed branches.  The default is to show only open branches.
**
** Options:
**    -R|--repository FILE       Run commands on repository FILE
*/

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

/*
**  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 */
  int brid;              /* RID of the branch check-in */
  int noSign;            /* True if the branch is unsigned */
  int i;                 /* Loop counter */
  char *zUuid;           /* Artifact ID of origin */
................................................................................
  noSign = find_option("nosign","",0)!=0;
  zColor = find_option("bgcolor","c",1);
  isPrivate = find_option("private",0,0)!=0;
  zDateOvrd = find_option("date-override",0,1);
  zUserOvrd = find_option("user-override",0,1);
  verify_all_options();
  if( g.argc<5 ){
    usage("new BRANCH-NAME BASIS ?OPTIONS?");
  }
  db_find_and_open_repository(0, 0);  
  noSign = db_get_int("omitsign", 0)|noSign;
  
  /* fossil branch new name */
  zBranch = g.argv[3];
  if( zBranch==0 || zBranch[0]==0 ){
................................................................................
** COMMAND: branch
**
** Usage: %fossil branch SUBCOMMAND ... ?OPTIONS?
**
** Run various subcommands to manage branches of the open repository or
** of the repository identified by the -R or --repository option.
**
**    %fossil branch new BRANCH-NAME BASIS ?OPTIONS?
**
**        Create a new branch BRANCH-NAME off of check-in BASIS.
**        Supported options for this subcommand include:
**        --private             branch is private (i.e., remains local)
**        --bgcolor COLOR       use COLOR instead of automatic background
**        --nosign              do not sign contents on this branch
**        --date-override DATE  DATE to use instead of 'now'
**        --user-override USER  USER to use instead of the current default
**
**    %fossil branch list ?--all | --closed?
**    %fossil branch ls ?--all | --closed?
**
**        List all branches.  Use --all or --closed to list all branches
**        or closed branches.  The default is to show only open branches.
**
** Options:
**    -R|--repository FILE       Run commands on repository FILE
*/

    db_prepare(&ins,
       "INSERT OR IGNORE INTO localfiles VALUES(pathelement(:x,0), :u)"
    );
    manifest_file_rewind(pM);
    while( (pFile = manifest_file_next(pM,0))!=0 ){
      if( nD>0 

       && (memcmp(pFile->zName, zD, nD-1)!=0 || pFile->zName[nD-1]!='/')
      ){
        continue;
      }
      if( pPrev
       && memcmp(&pFile->zName[nD],&pPrev->zName[nD],nPrev)==0
       && (pFile->zName[nD+nPrev]==0 || pFile->zName[nD+nPrev]=='/')
      ){
        continue;
      }
      db_bind_text(&ins, ":x", &pFile->zName[nD]);
      db_bind_text(&ins, ":u", pFile->zUuid);
      db_step(&ins);

    db_prepare(&ins,
       "INSERT OR IGNORE INTO localfiles VALUES(pathelement(:x,0), :u)"
    );
    manifest_file_rewind(pM);
    while( (pFile = manifest_file_next(pM,0))!=0 ){
      if( nD>0 
       && (filenames_strncmp(pFile->zName, zD, nD-1)!=0
           || pFile->zName[nD-1]!='/')
      ){
        continue;
      }
      if( pPrev
       && filenames_strncmp(&pFile->zName[nD],&pPrev->zName[nD],nPrev)==0
       && (pFile->zName[nD+nPrev]==0 || pFile->zName[nD+nPrev]=='/')
      ){
        continue;
      }
      db_bind_text(&ins, ":x", &pFile->zName[nD]);
      db_bind_text(&ins, ":u", pFile->zUuid);
      db_step(&ins);

    }else if( isRenamed ){
      blob_appendf(report, "RENAMED    %s\n", zDisplayName);
    }
    free(zFullName);
  }
  blob_reset(&rewrittenPathname);
  db_finalize(&q);



  db_prepare(&q, "SELECT uuid FROM vmerge JOIN blob ON merge=rid"
                 " WHERE id=0");
  while( db_step(&q)==SQLITE_ROW ){





    blob_append(report, zPrefix, nPrefix);
    blob_appendf(report, "MERGED_WITH %s\n", db_column_text(&q, 0));

  }
  db_finalize(&q);
  if( nErr ){
    fossil_fatal("aborting due to prior errors");
  }
}

................................................................................
                    g.zLocalRoot);
  }
#if defined(_WIN32)
  blob_add_cr(&text);
#endif
  blob_write_to_file(&text, zFile);
  if( zEditor ){
    i64 original_time;
    zCmd = mprintf("%s \"%s\"", zEditor, zFile);
    fossil_print("%s\n", zCmd);
    original_time = file_mtime(zFile);
    if( fossil_system(zCmd) ){
      fossil_panic("editor aborted");
    }
    blob_reset(&text);
    if (file_mtime(zFile) != original_time)
        blob_read_from_file(&text, zFile);
  }else{
    char zIn[300];
    blob_reset(&text);
    while( fgets(zIn, sizeof(zIn), stdin)!=0 ){
      char *zUtf8 = fossil_mbcs_to_utf8(zIn);
      if( zUtf8[0]=='.' && (zUtf8[1]==0 || zUtf8[1]=='\r' || zUtf8[1]=='\n') ){
        fossil_mbcs_free(zUtf8);
................................................................................
    blob_appendf(pOut, "F %F\n", pFile->zName);
    pFile = manifest_file_next(pBaseline, 0);
    nFBcard++;
  }
  blob_appendf(pOut, "P %s", zParentUuid);
  if( verifyDate ) checkin_verify_younger(vid, zParentUuid, zDate);
  free(zParentUuid);
  db_prepare(&q2, "SELECT merge FROM vmerge WHERE id=:id");
  db_bind_int(&q2, ":id", 0);
  while( db_step(&q2)==SQLITE_ROW ){
    char *zMergeUuid;
    int mid = db_column_int(&q2, 0);
    if( !g.markPrivate && content_is_private(mid) ) continue;
    zMergeUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", mid);
    if( zMergeUuid ){
      blob_appendf(pOut, " %s", zMergeUuid);
................................................................................
    blob_append(&comment, zComment, -1);
  }else if( zComFile ){
    blob_zero(&comment);
    blob_read_from_file(&comment, zComFile);
  }else{
    char *zInit = db_text(0, "SELECT value FROM vvar WHERE name='ci-comment'");
    prepare_commit_comment(&comment, zInit, zBranch, vid, zUserOvrd);






    free(zInit);
  }
  if( blob_size(&comment)==0 ){
    Blob ans;
    blob_zero(&ans);
    prompt_user("empty/unchanged check-in comment.  continue (y/N)? ", &ans);
    if( blob_str(&ans)[0]!='y' ){
      fossil_exit(1);
    }
  }else{
    db_multi_exec("REPLACE INTO vvar VALUES('ci-comment',%B)", &comment);
    db_end_transaction(0);
    db_begin_transaction();
................................................................................
    blob_reset(&muuid);
  }

  
  /* Update the vfile and vmerge tables */
  db_multi_exec(
    "DELETE FROM vfile WHERE (vid!=%d OR deleted) AND file_is_selected(id);"
    "DELETE FROM vmerge WHERE file_is_selected(id) OR id=0;"
    "UPDATE vfile SET vid=%d;"
    "UPDATE vfile SET rid=mrid, chnged=0, deleted=0, origname=NULL"
    " WHERE file_is_selected(id);"
    , vid, nvid
  );
  db_lset_int("checkout", nvid);

    }else if( isRenamed ){
      blob_appendf(report, "RENAMED    %s\n", zDisplayName);
    }
    free(zFullName);
  }
  blob_reset(&rewrittenPathname);
  db_finalize(&q);
  /* -3 holds the baseline-based merges - nor cherrypick nor backout.
   * Now we can't report easily the baseline-based merges, because
   * we don't store the baseline point in vmerge */
  db_prepare(&q, "SELECT uuid, id FROM vmerge JOIN blob ON merge=rid"
                 " WHERE id<=0 AND id >= -2");
  while( db_step(&q)==SQLITE_ROW ){
    const char *zLabel = "MERGED_WITH";
    switch( db_column_int(&q, 1) ){
      case -1:  zLabel = "CHERRYPICK ";  break;
      case -2:  zLabel = "BACKOUT    ";  break;
    }
    blob_append(report, zPrefix, nPrefix);

    blob_appendf(report, "%s %s\n", zLabel, db_column_text(&q, 0));
  }
  db_finalize(&q);
  if( nErr ){
    fossil_fatal("aborting due to prior errors");
  }
}

................................................................................
                    g.zLocalRoot);
  }
#if defined(_WIN32)
  blob_add_cr(&text);
#endif
  blob_write_to_file(&text, zFile);
  if( zEditor ){

    zCmd = mprintf("%s \"%s\"", zEditor, zFile);
    fossil_print("%s\n", zCmd);

    if( fossil_system(zCmd) ){
      fossil_panic("editor aborted");
    }
    blob_reset(&text);

    blob_read_from_file(&text, zFile);
  }else{
    char zIn[300];
    blob_reset(&text);
    while( fgets(zIn, sizeof(zIn), stdin)!=0 ){
      char *zUtf8 = fossil_mbcs_to_utf8(zIn);
      if( zUtf8[0]=='.' && (zUtf8[1]==0 || zUtf8[1]=='\r' || zUtf8[1]=='\n') ){
        fossil_mbcs_free(zUtf8);
................................................................................
    blob_appendf(pOut, "F %F\n", pFile->zName);
    pFile = manifest_file_next(pBaseline, 0);
    nFBcard++;
  }
  blob_appendf(pOut, "P %s", zParentUuid);
  if( verifyDate ) checkin_verify_younger(vid, zParentUuid, zDate);
  free(zParentUuid);
  db_prepare(&q2, "SELECT merge FROM vmerge WHERE id=0");

  while( db_step(&q2)==SQLITE_ROW ){
    char *zMergeUuid;
    int mid = db_column_int(&q2, 0);
    if( !g.markPrivate && content_is_private(mid) ) continue;
    zMergeUuid = db_text(0, "SELECT uuid FROM blob WHERE rid=%d", mid);
    if( zMergeUuid ){
      blob_appendf(pOut, " %s", zMergeUuid);
................................................................................
    blob_append(&comment, zComment, -1);
  }else if( zComFile ){
    blob_zero(&comment);
    blob_read_from_file(&comment, zComFile);
  }else{
    char *zInit = db_text(0, "SELECT value FROM vvar WHERE name='ci-comment'");
    prepare_commit_comment(&comment, zInit, zBranch, vid, zUserOvrd);
    if( zInit && zInit[0] && fossil_strcmp(zInit, blob_str(&comment))==0 ){
      Blob ans;
      blob_zero(&ans);
      prompt_user("unchanged check-in comment.  continue (y/N)? ", &ans);
      if( blob_str(&ans)[0]!='y' ) fossil_exit(1);;
    }
    free(zInit);
  }
  if( blob_size(&comment)==0 ){
    Blob ans;
    blob_zero(&ans);
    prompt_user("empty check-in comment.  continue (y/N)? ", &ans);
    if( blob_str(&ans)[0]!='y' ){
      fossil_exit(1);
    }
  }else{
    db_multi_exec("REPLACE INTO vvar VALUES('ci-comment',%B)", &comment);
    db_end_transaction(0);
    db_begin_transaction();
................................................................................
    blob_reset(&muuid);
  }

  
  /* Update the vfile and vmerge tables */
  db_multi_exec(
    "DELETE FROM vfile WHERE (vid!=%d OR deleted) AND file_is_selected(id);"
    "DELETE FROM vmerge;"
    "UPDATE vfile SET vid=%d;"
    "UPDATE vfile SET rid=mrid, chnged=0, deleted=0, origname=NULL"
    " WHERE file_is_selected(id);"
    , vid, nvid
  );
  db_lset_int("checkout", nvid);

/*
** Look at the HTTP_USER_AGENT parameter and try to determine if the user agent
** is a manually operated browser or a bot.  When in doubt, assume a bot.
** Return true if we believe the agent is a real person.
*/
static int isHuman(const char *zAgent){
  int i;
  if( zAgent==0 ) return 0;  /* If not UserAgent, the probably a bot */
  for(i=0; zAgent[i]; i++){
    if( prefix_match("bot", zAgent+i) ) return 0;
    if( prefix_match("spider", zAgent+i) ) return 0;
    if( prefix_match("crawl", zAgent+i) ) return 0;
    /* If a URI appears in the User-Agent, it is probably a bot */
    if( memcmp("http", zAgent+i,4)==0 ) return 0;
  }

/*
** Look at the HTTP_USER_AGENT parameter and try to determine if the user agent
** is a manually operated browser or a bot.  When in doubt, assume a bot.
** Return true if we believe the agent is a real person.
*/
static int isHuman(const char *zAgent){
  int i;
  if( zAgent==0 ) return 0;  /* If not UserAgent, then probably a bot */
  for(i=0; zAgent[i]; i++){
    if( prefix_match("bot", zAgent+i) ) return 0;
    if( prefix_match("spider", zAgent+i) ) return 0;
    if( prefix_match("crawl", zAgent+i) ) return 0;
    /* If a URI appears in the User-Agent, it is probably a bot */
    if( memcmp("http", zAgent+i,4)==0 ) return 0;
  }

** Turn off any NL to CRNL translation on the stream given as an
** argument.  This is a no-op on unix but is necessary on windows.
*/
void fossil_binary_mode(FILE *p){
#if defined(_WIN32)
  _setmode(_fileno(p), _O_BINARY);
#endif



}



/*
** Return a name for an SQLite error code
*/
................................................................................
  if( g.argc==3 && fossil_strcmp(g.argv[1],"cgi")==0 ){
    zFile = g.argv[2];
  }else{
    zFile = g.argv[1];
  }
  g.httpOut = stdout;
  g.httpIn = stdin;
#if defined(_WIN32)
  /* Set binary mode on windows to avoid undesired translations
  ** between \n and \r\n. */
  setmode(_fileno(g.httpOut), _O_BINARY);
  setmode(_fileno(g.httpIn), _O_BINARY);
#endif
#ifdef __EMX__
  /* Similar hack for OS/2 */
  setmode(fileno(g.httpOut), O_BINARY);
  setmode(fileno(g.httpIn), O_BINARY);
#endif
  g.cgiOutput = 1;
  blob_read_from_file(&config, zFile);
  while( blob_line(&config, &line) ){
    if( !blob_token(&line, &key) ) continue;
    if( blob_buffer(&key)[0]=='#' ) continue;
    if( blob_eq(&key, "debug:") && blob_token(&line, &value) ){
      g.fDebug = fopen(blob_str(&value), "a");
................................................................................
  g.cgiOutput = 1;
  g.fullHttpReply = 1;
  cgi_handle_http_request(0);
  process_one_web_page(0);
}

#if !defined(_WIN32)
#if !defined(__DARWIN__) && !defined(__APPLE__)
/*
** Search for an executable on the PATH environment variable.
** Return true (1) if found and false (0) if not found.
*/
static int binaryOnPath(const char *zBinary){
  const char *zPath = fossil_getenv("PATH");
  char *zFull;
................................................................................
  }else{
    iPort = db_get_int("http-port", 8080);
    mxPort = iPort+100;
  }
#if !defined(_WIN32)
  /* Unix implementation */
  if( isUiCmd ){
#if !defined(__DARWIN__) && !defined(__APPLE__)
    zBrowser = db_get("web-browser", 0);
    if( zBrowser==0 ){
      static char *azBrowserProg[] = { "xdg-open", "gnome-open", "firefox" };
      int i;
      zBrowser = "echo";
      for(i=0; i<sizeof(azBrowserProg)/sizeof(azBrowserProg[0]); i++){
        if( binaryOnPath(azBrowserProg[i]) ){

** Turn off any NL to CRNL translation on the stream given as an
** argument.  This is a no-op on unix but is necessary on windows.
*/
void fossil_binary_mode(FILE *p){
#if defined(_WIN32)
  _setmode(_fileno(p), _O_BINARY);
#endif
#ifdef __EMX__     /* OS/2 */
  setmode(fileno(p), O_BINARY);
#endif
}



/*
** Return a name for an SQLite error code
*/
................................................................................
  if( g.argc==3 && fossil_strcmp(g.argv[1],"cgi")==0 ){
    zFile = g.argv[2];
  }else{
    zFile = g.argv[1];
  }
  g.httpOut = stdout;
  g.httpIn = stdin;
  fossil_binary_mode(g.httpOut);
  fossil_binary_mode(g.httpIn);









  g.cgiOutput = 1;
  blob_read_from_file(&config, zFile);
  while( blob_line(&config, &line) ){
    if( !blob_token(&line, &key) ) continue;
    if( blob_buffer(&key)[0]=='#' ) continue;
    if( blob_eq(&key, "debug:") && blob_token(&line, &value) ){
      g.fDebug = fopen(blob_str(&value), "a");
................................................................................
  g.cgiOutput = 1;
  g.fullHttpReply = 1;
  cgi_handle_http_request(0);
  process_one_web_page(0);
}

#if !defined(_WIN32)
#if !defined(__DARWIN__) && !defined(__APPLE__) && !defined(__HAIKU__)
/*
** Search for an executable on the PATH environment variable.
** Return true (1) if found and false (0) if not found.
*/
static int binaryOnPath(const char *zBinary){
  const char *zPath = fossil_getenv("PATH");
  char *zFull;
................................................................................
  }else{
    iPort = db_get_int("http-port", 8080);
    mxPort = iPort+100;
  }
#if !defined(_WIN32)
  /* Unix implementation */
  if( isUiCmd ){
#if !defined(__DARWIN__) && !defined(__APPLE__) && !defined(__HAIKU__)
    zBrowser = db_get("web-browser", 0);
    if( zBrowser==0 ){
      static char *azBrowserProg[] = { "xdg-open", "gnome-open", "firefox" };
      int i;
      zBrowser = "echo";
      for(i=0; i<sizeof(azBrowserProg)/sizeof(azBrowserProg[0]); i++){
        if( binaryOnPath(azBrowserProg[i]) ){

ZLIBDIR = $(SRCDIR)/../zlib-1.2.6

#### The directories where the OpenSSL include and library files are located.
#    The recommended usage here is to use the Sysinternals junction tool
#    to create a hard link between an "openssl-1.x" sub-directory of the
#    Fossil source code directory and the target OpenSSL source directory.
#
OPENSSLINCDIR = $(SRCDIR)/../openssl-1.0.0g/include
OPENSSLLIBDIR = $(SRCDIR)/../openssl-1.0.0g

#### Either the directory where the Tcl library is installed or the Tcl
#    source code directory resides (depending on the value of the macro
#    FOSSIL_TCL_SOURCE).  If this points to the Tcl install directory,
#    this directory must have "include" and "lib" sub-directories.  If
#    this points to the Tcl source code directory, this directory must
#    have "generic" and "win" sub-directories.  The recommended usage

ZLIBDIR = $(SRCDIR)/../zlib-1.2.6

#### The directories where the OpenSSL include and library files are located.
#    The recommended usage here is to use the Sysinternals junction tool
#    to create a hard link between an "openssl-1.x" sub-directory of the
#    Fossil source code directory and the target OpenSSL source directory.
#
OPENSSLINCDIR = $(SRCDIR)/../openssl-1.0.1a/include
OPENSSLLIBDIR = $(SRCDIR)/../openssl-1.0.1a

#### Either the directory where the Tcl library is installed or the Tcl
#    source code directory resides (depending on the value of the macro
#    FOSSIL_TCL_SOURCE).  If this points to the Tcl install directory,
#    this directory must have "include" and "lib" sub-directories.  If
#    this points to the Tcl source code directory, this directory must
#    have "generic" and "win" sub-directories.  The recommended usage

** The file consists of zero or more cards, one card per line.
** (Except: the content of the W card can extend of multiple lines.)
** Each card is divided into tokens by a single space character.
** The first token is a single upper-case letter which is the card type.
** The card type determines the other parameters to the card.
** Cards must occur in lexicographical order.
*/
static Manifest *manifest_parse(Blob *pContent, int rid){
  Manifest *p;
  int seenZ = 0;
  int i, lineNo=0;
  ManifestText x;
  char cPrevType = 0;
  char cType;
  char *z;
  int n;
  char *zUuid;
  int sz = 0;
  int isRepeat;
  static Bag seen;



  if( bag_find(&seen, rid) ){
    isRepeat = 1;
  }else{
    isRepeat = 0;
    bag_insert(&seen, rid);
  }

  /* Every control artifact ends with a '\n' character.  Exit early

** The file consists of zero or more cards, one card per line.
** (Except: the content of the W card can extend of multiple lines.)
** Each card is divided into tokens by a single space character.
** The first token is a single upper-case letter which is the card type.
** The card type determines the other parameters to the card.
** Cards must occur in lexicographical order.
*/
Manifest *manifest_parse(Blob *pContent, int rid){
  Manifest *p;
  int seenZ = 0;
  int i, lineNo=0;
  ManifestText x;
  char cPrevType = 0;
  char cType;
  char *z;
  int n;
  char *zUuid;
  int sz = 0;
  int isRepeat;
  static Bag seen;

  if( rid==0 ){
    isRepeat = 1;
  }else if( bag_find(&seen, rid) ){
    isRepeat = 1;
  }else{
    isRepeat = 0;
    bag_insert(&seen, rid);
  }

  /* Every control artifact ends with a '\n' character.  Exit early

    int a, b;
    do{ 
      a = *zA++;
      b = *zB++;
    }while( a==b && a!=0 );
    return ((unsigned char)a) - (unsigned char)b;
  }

















}

/*
** Case insensitive string comparison.
*/
int fossil_strnicmp(const char *zA, const char *zB, int nByte){
  if( zA==0 ){

    int a, b;
    do{ 
      a = *zA++;
      b = *zB++;
    }while( a==b && a!=0 );
    return ((unsigned char)a) - (unsigned char)b;
  }
}
int fossil_strncmp(const char *zA, const char *zB, int nByte){
  if( zA==0 ){
    if( zB==0 ) return 0;
    return -1;
  }else if( zB==0 ){
    return +1;
  }else if( nByte>0 ){
    int a, b;
    do{ 
      a = *zA++;
      b = *zB++;
    }while( a==b && a!=0 && (--nByte)>0 );
    return ((unsigned char)a) - (unsigned char)b;
  }else{
    return 0;
  }
}

/*
** Case insensitive string comparison.
*/
int fossil_strnicmp(const char *zA, const char *zB, int nByte){
  if( zA==0 ){

*/
struct callback_data {
  sqlite3 *db;           /* The database */
  int echoOn;            /* True to echo input commands */
  int statsOn;           /* True to display memory stats before each finalize */
  int cnt;               /* Number of records displayed so far */
  FILE *out;             /* Write results here */

  int nErr;              /* Number of errors seen */
  int mode;              /* An output mode setting */
  int writableSchema;    /* True if PRAGMA writable_schema=ON */
  int showHeader;        /* True to show column names in List or Column mode */
  char *zDestTable;      /* Name of destination table when MODE_Insert */
  char separator[20];    /* Separator character for MODE_List */
  int colWidth[100];     /* Requested width of each column when in column mode*/
................................................................................

    zSelect = appendText(zSelect, "SELECT 'INSERT INTO ' || ", 0);
    /* Always quote the table name, even if it appears to be pure ascii,
    ** in case it is a keyword. Ex:  INSERT INTO "table" ... */
    zTmp = appendText(zTmp, zTable, '"');
    if( zTmp ){
      zSelect = appendText(zSelect, zTmp, '\'');

    }
    zSelect = appendText(zSelect, " || ' VALUES(' || ", 0);
    rc = sqlite3_step(pTableInfo);
    while( rc==SQLITE_ROW ){
      const char *zText = (const char *)sqlite3_column_text(pTableInfo, 1);
      zSelect = appendText(zSelect, "quote(", 0);
      zSelect = appendText(zSelect, zText, '"');
................................................................................
    zSelect = appendText(zSelect, zTable, '"');

    rc = run_table_dump_query(p, zSelect, zPrepStmt);
    if( rc==SQLITE_CORRUPT ){
      zSelect = appendText(zSelect, " ORDER BY rowid DESC", 0);
      run_table_dump_query(p, zSelect, 0);
    }
    if( zSelect ) free(zSelect);
  }
  return 0;
}

/*
** Run zQuery.  Use dump_callback() as the callback routine so that
** the contents of the query are output as SQL statements.
................................................................................
    if( zErr ){
      fprintf(p->out, "/****** %s ******/\n", zErr);
      sqlite3_free(zErr);
      zErr = 0;
    }
    zQ2 = malloc( len+100 );
    if( zQ2==0 ) return rc;
    sqlite3_snprintf(sizeof(zQ2), zQ2, "%s ORDER BY rowid DESC", zQuery);
    rc = sqlite3_exec(p->db, zQ2, dump_callback, p, &zErr);
    if( rc ){
      fprintf(p->out, "/****** ERROR: %s ******/\n", zErr);
    }else{
      rc = SQLITE_CORRUPT;
    }
    sqlite3_free(zErr);
................................................................................
  ".separator STRING      Change separator used by output mode and .import\n"
  ".show                  Show the current values for various settings\n"
  ".stats ON|OFF          Turn stats on or off\n"
  ".tables ?TABLE?        List names of tables\n"
  "                         If TABLE specified, only list tables matching\n"
  "                         LIKE pattern TABLE.\n"
  ".timeout MS            Try opening locked tables for MS milliseconds\n"

  ".vfsname ?AUX?         Print the name of the VFS stack\n"
  ".width NUM1 NUM2 ...   Set column widths for \"column\" mode\n"
;

static char zTimerHelp[] =
  ".timer ON|OFF          Turn the CPU timer measurement on or off\n"
;
................................................................................
  if( strcmp(zArg,"on")==0 ){
    val = 1;
  }else if( strcmp(zArg,"yes")==0 ){
    val = 1;
  }
  return val;
}















































/*
** If an input line begins with "." then invoke this routine to
** process that line.
**
** Return 1 on error, 2 to exit, and 0 otherwise.
*/
................................................................................
    }
    sqlite3_close(pDest);
  }else

  if( c=='b' && n>=3 && strncmp(azArg[0], "bail", n)==0 && nArg>1 && nArg<3 ){
    bail_on_error = booleanValue(azArg[1]);
  }else








  if( c=='d' && n>1 && strncmp(azArg[0], "databases", n)==0 && nArg==1 ){
    struct callback_data data;
    char *zErrMsg = 0;
    open_db(p);
    memcpy(&data, p, sizeof(data));
    data.showHeader = 1;
................................................................................
      rc = 1;
    }
  }else
#endif

  if( c=='l' && strncmp(azArg[0], "log", n)==0 && nArg>=2 ){
    const char *zFile = azArg[1];
    if( p->pLog && p->pLog!=stdout && p->pLog!=stderr ){
      fclose(p->pLog);
      p->pLog = 0;
    }
    if( strcmp(zFile,"stdout")==0 ){
      p->pLog = stdout;
    }else if( strcmp(zFile, "stderr")==0 ){
      p->pLog = stderr;
    }else if( strcmp(zFile, "off")==0 ){
      p->pLog = 0;
    }else{
      p->pLog = fopen(zFile, "w");
      if( p->pLog==0 ){
        fprintf(stderr, "Error: cannot open \"%s\"\n", zFile);
      }
    }
  }else

  if( c=='m' && strncmp(azArg[0], "mode", n)==0 && nArg==2 ){
    int n2 = strlen30(azArg[1]);
    if( (n2==4 && strncmp(azArg[1],"line",n2)==0)
        ||
        (n2==5 && strncmp(azArg[1],"lines",n2)==0) ){
................................................................................

  if( c=='n' && strncmp(azArg[0], "nullvalue", n)==0 && nArg==2 ) {
    sqlite3_snprintf(sizeof(p->nullvalue), p->nullvalue,
                     "%.*s", (int)ArraySize(p->nullvalue)-1, azArg[1]);
  }else

  if( c=='o' && strncmp(azArg[0], "output", n)==0 && nArg==2 ){
    if( p->out!=stdout ){
      if( p->outfile[0]=='|' ){
        pclose(p->out);
      }else{
        fclose(p->out);
      }
    }
    if( strcmp(azArg[1],"stdout")==0 ){
      p->out = stdout;
      sqlite3_snprintf(sizeof(p->outfile), p->outfile, "stdout");

    }else if( azArg[1][0]=='|' ){
      p->out = popen(&azArg[1][1], "w");
      if( p->out==0 ){
        fprintf(stderr,"Error: cannot open pipe \"%s\"\n", &azArg[1][1]);
        p->out = stdout;
        rc = 1;
      }else{
        sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", azArg[1]);
      }
    }else{
      p->out = fopen(azArg[1], "wb");
      if( p->out==0 ){

        fprintf(stderr,"Error: cannot write to \"%s\"\n", azArg[1]);

        p->out = stdout;
        rc = 1;
      } else {
         sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", azArg[1]);
      }
    }
  }else

  if( c=='p' && strncmp(azArg[0], "prompt", n)==0 && (nArg==2 || nArg==3)){
    if( nArg >= 2) {
      strncpy(mainPrompt,azArg[1],(int)ArraySize(mainPrompt)-1);
................................................................................
    
  if( HAS_TIMER && c=='t' && n>=5 && strncmp(azArg[0], "timer", n)==0
   && nArg==2
  ){
    enableTimer = booleanValue(azArg[1]);
  }else
  












  if( c=='v' && strncmp(azArg[0], "version", n)==0 ){
    printf("SQLite %s %s\n" /*extra-version-info*/,
        sqlite3_libversion(), sqlite3_sourceid());
  }else

  if( c=='v' && strncmp(azArg[0], "vfsname", n)==0 ){
    const char *zDbName = nArg==2 ? azArg[1] : "main";
................................................................................
  }
  free(zLine);
  return errCnt;
}

/*
** Return a pathname which is the user's home directory.  A
** 0 return indicates an error of some kind.  Space to hold the
** resulting string is obtained from malloc().  The calling
** function should free the result.
*/
static char *find_home_dir(void){
  char *home_dir = NULL;


#if !defined(_WIN32) && !defined(WIN32) && !defined(__OS2__) && !defined(_WIN32_WCE) && !defined(__RTP__) && !defined(_WRS_KERNEL)
  struct passwd *pwent;
  uid_t uid = getuid();
  if( (pwent=getpwuid(uid)) != NULL) {
    home_dir = pwent->pw_dir;
  }
#endif

#if defined(_WIN32_WCE)
  /* Windows CE (arm-wince-mingw32ce-gcc) does not provide getenv()
   */
  home_dir = strdup("/");
#else

#if defined(_WIN32) || defined(WIN32) || defined(__OS2__)
  if (!home_dir) {
    home_dir = getenv("USERPROFILE");
  }
#endif
................................................................................
  struct callback_data *p,        /* Configuration data */
  const char *sqliterc_override   /* Name of config file. NULL to use default */
){
  char *home_dir = NULL;
  const char *sqliterc = sqliterc_override;
  char *zBuf = 0;
  FILE *in = NULL;
  int nBuf;
  int rc = 0;

  if (sqliterc == NULL) {
    home_dir = find_home_dir();
    if( home_dir==0 ){
#if !defined(__RTP__) && !defined(_WRS_KERNEL)
      fprintf(stderr,"%s: Error: cannot locate your home directory\n", Argv0);
#endif
      return 1;
    }
    nBuf = strlen30(home_dir) + 16;
    zBuf = malloc( nBuf );
    if( zBuf==0 ){
      fprintf(stderr,"%s: Error: out of memory\n",Argv0);
      return 1;
    }
    sqlite3_snprintf(nBuf, zBuf,"%s/.sqliterc",home_dir);
    free(home_dir);
    sqliterc = (const char*)zBuf;
  }
  in = fopen(sqliterc,"rb");
  if( in ){
    if( stdin_is_interactive ){
      fprintf(stderr,"-- Loading resources from %s\n",sqliterc);
    }
    rc = process_input(p,in);
    fclose(in);
  }
  free(zBuf);
  return rc;
}

/*
** Show available command line options
*/
static const char zOptions[] = 
................................................................................
#endif
      rc = process_input(&data, 0);
      if( zHistory ){
        stifle_history(100);
        write_history(zHistory);
        free(zHistory);
      }
      free(zHome);
    }else{
      rc = process_input(&data, stdin);
    }
  }
  set_table_name(&data, 0);
  if( data.db ){
    sqlite3_close(data.db);
  }
  return rc;
}

*/
struct callback_data {
  sqlite3 *db;           /* The database */
  int echoOn;            /* True to echo input commands */
  int statsOn;           /* True to display memory stats before each finalize */
  int cnt;               /* Number of records displayed so far */
  FILE *out;             /* Write results here */
  FILE *traceOut;        /* Output for sqlite3_trace() */
  int nErr;              /* Number of errors seen */
  int mode;              /* An output mode setting */
  int writableSchema;    /* True if PRAGMA writable_schema=ON */
  int showHeader;        /* True to show column names in List or Column mode */
  char *zDestTable;      /* Name of destination table when MODE_Insert */
  char separator[20];    /* Separator character for MODE_List */
  int colWidth[100];     /* Requested width of each column when in column mode*/
................................................................................

    zSelect = appendText(zSelect, "SELECT 'INSERT INTO ' || ", 0);
    /* Always quote the table name, even if it appears to be pure ascii,
    ** in case it is a keyword. Ex:  INSERT INTO "table" ... */
    zTmp = appendText(zTmp, zTable, '"');
    if( zTmp ){
      zSelect = appendText(zSelect, zTmp, '\'');
      free(zTmp);
    }
    zSelect = appendText(zSelect, " || ' VALUES(' || ", 0);
    rc = sqlite3_step(pTableInfo);
    while( rc==SQLITE_ROW ){
      const char *zText = (const char *)sqlite3_column_text(pTableInfo, 1);
      zSelect = appendText(zSelect, "quote(", 0);
      zSelect = appendText(zSelect, zText, '"');
................................................................................
    zSelect = appendText(zSelect, zTable, '"');

    rc = run_table_dump_query(p, zSelect, zPrepStmt);
    if( rc==SQLITE_CORRUPT ){
      zSelect = appendText(zSelect, " ORDER BY rowid DESC", 0);
      run_table_dump_query(p, zSelect, 0);
    }
    free(zSelect);
  }
  return 0;
}

/*
** Run zQuery.  Use dump_callback() as the callback routine so that
** the contents of the query are output as SQL statements.
................................................................................
    if( zErr ){
      fprintf(p->out, "/****** %s ******/\n", zErr);
      sqlite3_free(zErr);
      zErr = 0;
    }
    zQ2 = malloc( len+100 );
    if( zQ2==0 ) return rc;
    sqlite3_snprintf(len+100, zQ2, "%s ORDER BY rowid DESC", zQuery);
    rc = sqlite3_exec(p->db, zQ2, dump_callback, p, &zErr);
    if( rc ){
      fprintf(p->out, "/****** ERROR: %s ******/\n", zErr);
    }else{
      rc = SQLITE_CORRUPT;
    }
    sqlite3_free(zErr);
................................................................................
  ".separator STRING      Change separator used by output mode and .import\n"
  ".show                  Show the current values for various settings\n"
  ".stats ON|OFF          Turn stats on or off\n"
  ".tables ?TABLE?        List names of tables\n"
  "                         If TABLE specified, only list tables matching\n"
  "                         LIKE pattern TABLE.\n"
  ".timeout MS            Try opening locked tables for MS milliseconds\n"
  ".trace FILE|off        Output each SQL statement as it is run\n"
  ".vfsname ?AUX?         Print the name of the VFS stack\n"
  ".width NUM1 NUM2 ...   Set column widths for \"column\" mode\n"
;

static char zTimerHelp[] =
  ".timer ON|OFF          Turn the CPU timer measurement on or off\n"
;
................................................................................
  if( strcmp(zArg,"on")==0 ){
    val = 1;
  }else if( strcmp(zArg,"yes")==0 ){
    val = 1;
  }
  return val;
}

/*
** Close an output file, assuming it is not stderr or stdout
*/
static void output_file_close(FILE *f){
  if( f && f!=stdout && f!=stderr ) fclose(f);
}

/*
** Try to open an output file.   The names "stdout" and "stderr" are
** recognized and do the right thing.  NULL is returned if the output 
** filename is "off".
*/
static FILE *output_file_open(const char *zFile){
  FILE *f;
  if( strcmp(zFile,"stdout")==0 ){
    f = stdout;
  }else if( strcmp(zFile, "stderr")==0 ){
    f = stderr;
  }else if( strcmp(zFile, "off")==0 ){
    f = 0;
  }else{
    f = fopen(zFile, "wb");
    if( f==0 ){
      fprintf(stderr, "Error: cannot open \"%s\"\n", zFile);
    }
  }
  return f;
}

/*
** A routine for handling output from sqlite3_trace().
*/
static void sql_trace_callback(void *pArg, const char *z){
  FILE *f = (FILE*)pArg;
  if( f ) fprintf(f, "%s\n", z);
}

/*
** A no-op routine that runs with the ".breakpoint" doc-command.  This is
** a useful spot to set a debugger breakpoint.
*/
static void test_breakpoint(void){
  static int nCall = 0;
  nCall++;
}

/*
** If an input line begins with "." then invoke this routine to
** process that line.
**
** Return 1 on error, 2 to exit, and 0 otherwise.
*/
................................................................................
    }
    sqlite3_close(pDest);
  }else

  if( c=='b' && n>=3 && strncmp(azArg[0], "bail", n)==0 && nArg>1 && nArg<3 ){
    bail_on_error = booleanValue(azArg[1]);
  }else

  /* The undocumented ".breakpoint" command causes a call to the no-op
  ** routine named test_breakpoint().
  */
  if( c=='b' && n>=3 && strncmp(azArg[0], "breakpoint", n)==0 ){
    test_breakpoint();
  }else

  if( c=='d' && n>1 && strncmp(azArg[0], "databases", n)==0 && nArg==1 ){
    struct callback_data data;
    char *zErrMsg = 0;
    open_db(p);
    memcpy(&data, p, sizeof(data));
    data.showHeader = 1;
................................................................................
      rc = 1;
    }
  }else
#endif

  if( c=='l' && strncmp(azArg[0], "log", n)==0 && nArg>=2 ){
    const char *zFile = azArg[1];

    output_file_close(p->pLog);
    p->pLog = output_file_open(zFile);













  }else

  if( c=='m' && strncmp(azArg[0], "mode", n)==0 && nArg==2 ){
    int n2 = strlen30(azArg[1]);
    if( (n2==4 && strncmp(azArg[1],"line",n2)==0)
        ||
        (n2==5 && strncmp(azArg[1],"lines",n2)==0) ){
................................................................................

  if( c=='n' && strncmp(azArg[0], "nullvalue", n)==0 && nArg==2 ) {
    sqlite3_snprintf(sizeof(p->nullvalue), p->nullvalue,
                     "%.*s", (int)ArraySize(p->nullvalue)-1, azArg[1]);
  }else

  if( c=='o' && strncmp(azArg[0], "output", n)==0 && nArg==2 ){

    if( p->outfile[0]=='|' ){
      pclose(p->out);
    }else{
      output_file_close(p->out);
    }




    p->outfile[0] = 0;
    if( azArg[1][0]=='|' ){
      p->out = popen(&azArg[1][1], "w");
      if( p->out==0 ){
        fprintf(stderr,"Error: cannot open pipe \"%s\"\n", &azArg[1][1]);
        p->out = stdout;
        rc = 1;
      }else{
        sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", azArg[1]);
      }
    }else{
      p->out = output_file_open(azArg[1]);
      if( p->out==0 ){
        if( strcmp(azArg[1],"off")!=0 ){
          fprintf(stderr,"Error: cannot write to \"%s\"\n", azArg[1]);
        }
        p->out = stdout;
        rc = 1;
      } else {
        sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", azArg[1]);
      }
    }
  }else

  if( c=='p' && strncmp(azArg[0], "prompt", n)==0 && (nArg==2 || nArg==3)){
    if( nArg >= 2) {
      strncpy(mainPrompt,azArg[1],(int)ArraySize(mainPrompt)-1);
................................................................................
    
  if( HAS_TIMER && c=='t' && n>=5 && strncmp(azArg[0], "timer", n)==0
   && nArg==2
  ){
    enableTimer = booleanValue(azArg[1]);
  }else
  
  if( c=='t' && strncmp(azArg[0], "trace", n)==0 && nArg>1 ){
    output_file_close(p->traceOut);
    p->traceOut = output_file_open(azArg[1]);
#ifndef SQLITE_OMIT_TRACE
    if( p->traceOut==0 ){
      sqlite3_trace(p->db, 0, 0);
    }else{
      sqlite3_trace(p->db, sql_trace_callback, p->traceOut);
    }
#endif
  }else

  if( c=='v' && strncmp(azArg[0], "version", n)==0 ){
    printf("SQLite %s %s\n" /*extra-version-info*/,
        sqlite3_libversion(), sqlite3_sourceid());
  }else

  if( c=='v' && strncmp(azArg[0], "vfsname", n)==0 ){
    const char *zDbName = nArg==2 ? azArg[1] : "main";
................................................................................
  }
  free(zLine);
  return errCnt;
}

/*
** Return a pathname which is the user's home directory.  A
** 0 return indicates an error of some kind.


*/
static char *find_home_dir(void){
  static char *home_dir = NULL;
  if( home_dir ) return home_dir;

#if !defined(_WIN32) && !defined(WIN32) && !defined(__OS2__) && !defined(_WIN32_WCE) && !defined(__RTP__) && !defined(_WRS_KERNEL)
  struct passwd *pwent;
  uid_t uid = getuid();
  if( (pwent=getpwuid(uid)) != NULL) {
    home_dir = pwent->pw_dir;
  }
#endif

#if defined(_WIN32_WCE)
  /* Windows CE (arm-wince-mingw32ce-gcc) does not provide getenv()
   */
  home_dir = "/";
#else

#if defined(_WIN32) || defined(WIN32) || defined(__OS2__)
  if (!home_dir) {
    home_dir = getenv("USERPROFILE");
  }
#endif
................................................................................
  struct callback_data *p,        /* Configuration data */
  const char *sqliterc_override   /* Name of config file. NULL to use default */
){
  char *home_dir = NULL;
  const char *sqliterc = sqliterc_override;
  char *zBuf = 0;
  FILE *in = NULL;

  int rc = 0;

  if (sqliterc == NULL) {
    home_dir = find_home_dir();
    if( home_dir==0 ){
#if !defined(__RTP__) && !defined(_WRS_KERNEL)
      fprintf(stderr,"%s: Error: cannot locate your home directory\n", Argv0);
#endif
      return 1;
    }






    zBuf = sqlite3_mprintf("%s/.sqliterc",home_dir);

    sqliterc = zBuf;
  }
  in = fopen(sqliterc,"rb");
  if( in ){
    if( stdin_is_interactive ){
      fprintf(stderr,"-- Loading resources from %s\n",sqliterc);
    }
    rc = process_input(p,in);
    fclose(in);
  }
  sqlite3_free(zBuf);
  return rc;
}

/*
** Show available command line options
*/
static const char zOptions[] = 
................................................................................
#endif
      rc = process_input(&data, 0);
      if( zHistory ){
        stifle_history(100);
        write_history(zHistory);
        free(zHistory);
      }

    }else{
      rc = process_input(&data, stdin);
    }
  }
  set_table_name(&data, 0);
  if( data.db ){
    sqlite3_close(data.db);
  }
  return rc;
}

**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.7.12"
#define SQLITE_VERSION_NUMBER 3007012
#define SQLITE_SOURCE_ID      "2012-03-31 19:12:23 af602d87736b52802a4e760ffeeaa28112b99d9a"

/*
** 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
................................................................................
** connection is opened. If it is globally disabled, filenames are
** only interpreted as URIs if the SQLITE_OPEN_URI flag is set when the
** database connection is opened. By default, URI handling is globally
** disabled. The default value may be changed by compiling with the
** [SQLITE_USE_URI] symbol defined.
**
** [[SQLITE_CONFIG_PCACHE]] [[SQLITE_CONFIG_GETPCACHE]]
** <dt>SQLITE_CONFIG_PCACHE and SQLITE_CONFNIG_GETPCACHE
** <dd> These options are obsolete and should not be used by new code.
** They are retained for backwards compatibility but are now no-ops.
** </dl>
*/
#define SQLITE_CONFIG_SINGLETHREAD  1  /* nil */
#define SQLITE_CONFIG_MULTITHREAD   2  /* nil */
#define SQLITE_CONFIG_SERIALIZED    3  /* nil */
................................................................................
** R-Tree geometry query as follows:
**
**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...)
*/
SQLITE_API int sqlite3_rtree_geometry_callback(
  sqlite3 *db,
  const char *zGeom,



  int (*xGeom)(sqlite3_rtree_geometry *, int nCoord, double *aCoord, int *pRes),

  void *pContext
);


/*
** A pointer to a structure of the following type is passed as the first
** argument to callbacks registered using rtree_geometry_callback().
................................................................................
  SrcList *pSrcList;   /* One or more tables used to resolve names */
  ExprList *pEList;    /* Optional list of named expressions */
  int nRef;            /* Number of names resolved by this context */
  int nErr;            /* Number of errors encountered while resolving names */
  u8 allowAgg;         /* Aggregate functions allowed here */
  u8 hasAgg;           /* True if aggregates are seen */
  u8 isCheck;          /* True if resolving names in a CHECK constraint */
  int nDepth;          /* Depth of subquery recursion. 1 for no recursion */
  AggInfo *pAggInfo;   /* Information about aggregates at this level */
  NameContext *pNext;  /* Next outer name context.  NULL for outermost */
};

/*
** An instance of the following structure contains all information
** needed to generate code for a single SELECT statement.
................................................................................
struct Walker {
  int (*xExprCallback)(Walker*, Expr*);     /* Callback for expressions */
  int (*xSelectCallback)(Walker*,Select*);  /* Callback for SELECTs */
  Parse *pParse;                            /* Parser context.  */
  union {                                   /* Extra data for callback */
    NameContext *pNC;                          /* Naming context */
    int i;                                     /* Integer value */

  } u;
};

/* Forward declarations */
SQLITE_PRIVATE int sqlite3WalkExpr(Walker*, Expr*);
SQLITE_PRIVATE int sqlite3WalkExprList(Walker*, ExprList*);
SQLITE_PRIVATE int sqlite3WalkSelect(Walker*, Select*);
................................................................................
SQLITE_PRIVATE void sqlite3HaltConstraint(Parse*, int, char*, int);
SQLITE_PRIVATE Expr *sqlite3ExprDup(sqlite3*,Expr*,int);
SQLITE_PRIVATE ExprList *sqlite3ExprListDup(sqlite3*,ExprList*,int);
SQLITE_PRIVATE SrcList *sqlite3SrcListDup(sqlite3*,SrcList*,int);
SQLITE_PRIVATE IdList *sqlite3IdListDup(sqlite3*,IdList*);
SQLITE_PRIVATE Select *sqlite3SelectDup(sqlite3*,Select*,int);
SQLITE_PRIVATE void sqlite3FuncDefInsert(FuncDefHash*, FuncDef*);
SQLITE_PRIVATE FuncDef *sqlite3FindFunction(sqlite3*,const char*,int,int,u8,int);
SQLITE_PRIVATE void sqlite3RegisterBuiltinFunctions(sqlite3*);
SQLITE_PRIVATE void sqlite3RegisterDateTimeFunctions(void);
SQLITE_PRIVATE void sqlite3RegisterGlobalFunctions(void);
SQLITE_PRIVATE int sqlite3SafetyCheckOk(sqlite3*);
SQLITE_PRIVATE int sqlite3SafetyCheckSickOrOk(sqlite3*);
SQLITE_PRIVATE void sqlite3ChangeCookie(Parse*, int);

................................................................................
** Default permissions when creating a new file
*/
#ifndef SQLITE_DEFAULT_FILE_PERMISSIONS
# define SQLITE_DEFAULT_FILE_PERMISSIONS 0644
#endif

/*
 ** Default permissions when creating auto proxy dir
 */
#ifndef SQLITE_DEFAULT_PROXYDIR_PERMISSIONS
# define SQLITE_DEFAULT_PROXYDIR_PERMISSIONS 0755
#endif

/*
** Maximum supported path-length.
*/
................................................................................
    if( aSyscall[i].pCurrent!=0 ) return aSyscall[i].zName;
  }
  return 0;
}

/*
** Invoke open().  Do so multiple times, until it either succeeds or
** files for some reason other than EINTR.
**
** If the file creation mode "m" is 0 then set it to the default for
** SQLite.  The default is SQLITE_DEFAULT_FILE_PERMISSIONS (normally
** 0644) as modified by the system umask.  If m is not 0, then
** make the file creation mode be exactly m ignoring the umask.
**
** The m parameter will be non-zero only when creating -wal, -journal,
................................................................................
** permissions as their original database, unadulterated by the umask.
** In that way, if a database file is -rw-rw-rw or -rw-rw-r-, and a
** transaction crashes and leaves behind hot journals, then any
** process that is able to write to the database will also be able to
** recover the hot journals.
*/
static int robust_open(const char *z, int f, mode_t m){
  int rc;
  mode_t m2;
  mode_t origM = 0;
  if( m==0 ){
    m2 = SQLITE_DEFAULT_FILE_PERMISSIONS;
  }else{
    m2 = m;
    origM = osUmask(0);
  }






  do{ rc = osOpen(z,f,m2); }while( rc<0 && errno==EINTR );
  if( m ){
    osUmask(origM);
  }



  return rc;
}

/*
** Helper functions to obtain and relinquish the global mutex. The
** global mutex is used to protect the unixInodeInfo and
** vxworksFileId objects used by this file, all of which may be 
** shared by multiple threads.
................................................................................

  sqlite3_snprintf(MAX_PATHNAME, zDirname, "%s", zFilename);
  for(ii=(int)strlen(zDirname); ii>1 && zDirname[ii]!='/'; ii--);
  if( ii>0 ){
    zDirname[ii] = '\0';
    fd = robust_open(zDirname, O_RDONLY|O_BINARY, 0);
    if( fd>=0 ){
#ifdef FD_CLOEXEC
      osFcntl(fd, F_SETFD, osFcntl(fd, F_GETFD, 0) | FD_CLOEXEC);
#endif
      OSTRACE(("OPENDIR %-3d %s\n", fd, zDirname));
    }
  }
  *pFd = fd;
  return (fd>=0?SQLITE_OK:unixLogError(SQLITE_CANTOPEN_BKPT, "open", zDirname));
}

................................................................................
  SimulateIOError( return SQLITE_IOERR_TRUNCATE );

  /* If the user has configured a chunk-size for this file, truncate the
  ** file so that it consists of an integer number of chunks (i.e. the
  ** actual file size after the operation may be larger than the requested
  ** size).
  */
  if( pFile->szChunk ){
    nByte = ((nByte + pFile->szChunk - 1)/pFile->szChunk) * pFile->szChunk;
  }

  rc = robust_ftruncate(pFile->h, (off_t)nByte);
  if( rc ){
    pFile->lastErrno = errno;
    return unixLogError(SQLITE_IOERR_TRUNCATE, "ftruncate", pFile->zPath);
................................................................................
  }
#if SQLITE_ENABLE_LOCKING_STYLE
  else{
    p->openFlags = openFlags;
  }
#endif

#ifdef FD_CLOEXEC
  osFcntl(fd, F_SETFD, osFcntl(fd, F_GETFD, 0) | FD_CLOEXEC);
#endif

  noLock = eType!=SQLITE_OPEN_MAIN_DB;

  
#if defined(__APPLE__) || SQLITE_ENABLE_LOCKING_STYLE
  if( fstatfs(fd, &fsInfo) == -1 ){
    ((unixFile*)pFile)->lastErrno = errno;
    robust_close(p, fd, __LINE__);
................................................................................
** The number of rowset entries per allocation chunk.
*/
#define ROWSET_ENTRY_PER_CHUNK  \
                       ((ROWSET_ALLOCATION_SIZE-8)/sizeof(struct RowSetEntry))

/*
** Each entry in a RowSet is an instance of the following object.





*/
struct RowSetEntry {            
  i64 v;                        /* ROWID value for this entry */
  struct RowSetEntry *pRight;   /* Right subtree (larger entries) or list */
  struct RowSetEntry *pLeft;    /* Left subtree (smaller entries) */
};

................................................................................
*/
struct RowSet {
  struct RowSetChunk *pChunk;    /* List of all chunk allocations */
  sqlite3 *db;                   /* The database connection */
  struct RowSetEntry *pEntry;    /* List of entries using pRight */
  struct RowSetEntry *pLast;     /* Last entry on the pEntry list */
  struct RowSetEntry *pFresh;    /* Source of new entry objects */
  struct RowSetEntry *pTree;     /* Binary tree of entries */
  u16 nFresh;                    /* Number of objects on pFresh */
  u8 isSorted;                   /* True if pEntry is sorted */
  u8 iBatch;                     /* Current insert batch */
};







/*
** Turn bulk memory into a RowSet object.  N bytes of memory
** are available at pSpace.  The db pointer is used as a memory context
** for any subsequent allocations that need to occur.
** Return a pointer to the new RowSet object.
**
** It must be the case that N is sufficient to make a Rowset.  If not
................................................................................
  RowSet *p;
  assert( N >= ROUND8(sizeof(*p)) );
  p = pSpace;
  p->pChunk = 0;
  p->db = db;
  p->pEntry = 0;
  p->pLast = 0;
  p->pTree = 0;
  p->pFresh = (struct RowSetEntry*)(ROUND8(sizeof(*p)) + (char*)p);
  p->nFresh = (u16)((N - ROUND8(sizeof(*p)))/sizeof(struct RowSetEntry));
  p->isSorted = 1;
  p->iBatch = 0;
  return p;
}

/*
** Deallocate all chunks from a RowSet.  This frees all memory that
** the RowSet has allocated over its lifetime.  This routine is
................................................................................
    pNextChunk = pChunk->pNextChunk;
    sqlite3DbFree(p->db, pChunk);
  }
  p->pChunk = 0;
  p->nFresh = 0;
  p->pEntry = 0;
  p->pLast = 0;
  p->pTree = 0;
  p->isSorted = 1;

























}

/*
** Insert a new value into a RowSet.
**
** The mallocFailed flag of the database connection is set if a
** memory allocation fails.
*/
SQLITE_PRIVATE void sqlite3RowSetInsert(RowSet *p, i64 rowid){
  struct RowSetEntry *pEntry;  /* The new entry */
  struct RowSetEntry *pLast;   /* The last prior entry */
  assert( p!=0 );
  if( p->nFresh==0 ){
    struct RowSetChunk *pNew;
    pNew = sqlite3DbMallocRaw(p->db, sizeof(*pNew));
    if( pNew==0 ){
      return;
    }
    pNew->pNextChunk = p->pChunk;
    p->pChunk = pNew;
    p->pFresh = pNew->aEntry;
    p->nFresh = ROWSET_ENTRY_PER_CHUNK;


  }
  pEntry = p->pFresh++;
  p->nFresh--;


  pEntry->v = rowid;
  pEntry->pRight = 0;
  pLast = p->pLast;
  if( pLast ){
    if( p->isSorted && rowid<=pLast->v ){
      p->isSorted = 0;
    }
    pLast->pRight = pEntry;
  }else{
    assert( p->pEntry==0 ); /* Fires if INSERT after SMALLEST */
    p->pEntry = pEntry;
  }
  p->pLast = pEntry;
}

/*
** Merge two lists of RowSetEntry objects.  Remove duplicates.
**
** The input lists are connected via pRight pointers and are 
** assumed to each already be in sorted order.
*/
static struct RowSetEntry *rowSetMerge(
  struct RowSetEntry *pA,    /* First sorted list to be merged */
  struct RowSetEntry *pB     /* Second sorted list to be merged */
){
  struct RowSetEntry head;
  struct RowSetEntry *pTail;

  pTail = &head;
................................................................................
    assert( pB==0 || pB->pRight==0 || pB->v<=pB->pRight->v );
    pTail->pRight = pB;
  }
  return head.pRight;
}

/*
** Sort all elements on the pEntry list of the RowSet into ascending order.

*/ 
static void rowSetSort(RowSet *p){

  unsigned int i;
  struct RowSetEntry *pEntry;
  struct RowSetEntry *aBucket[40];

  assert( p->isSorted==0 );
  memset(aBucket, 0, sizeof(aBucket));
  while( p->pEntry ){
    pEntry = p->pEntry;
    p->pEntry = pEntry->pRight;
    pEntry->pRight = 0;
    for(i=0; aBucket[i]; i++){
      pEntry = rowSetMerge(aBucket[i], pEntry);
      aBucket[i] = 0;
    }
    aBucket[i] = pEntry;

  }
  pEntry = 0;
  for(i=0; i<sizeof(aBucket)/sizeof(aBucket[0]); i++){
    pEntry = rowSetMerge(pEntry, aBucket[i]);

  }
  p->pEntry = pEntry;
  p->pLast = 0;
  p->isSorted = 1;

}


/*
** The input, pIn, is a binary tree (or subtree) of RowSetEntry objects.
** Convert this tree into a linked list connected by the pRight pointers
** and return pointers to the first and last elements of the new list.
................................................................................
    p->pLeft = pLeft;
    p->pRight = rowSetNDeepTree(&pList, iDepth);
  }
  return p;
}

/*
** Convert the list in p->pEntry into a sorted list if it is not
** sorted already.  If there is a binary tree on p->pTree, then
** convert it into a list too and merge it into the p->pEntry list.

*/
static void rowSetToList(RowSet *p){
  if( !p->isSorted ){
    rowSetSort(p);
  }















  if( p->pTree ){
    struct RowSetEntry *pHead, *pTail;
    rowSetTreeToList(p->pTree, &pHead, &pTail);
    p->pTree = 0;
    p->pEntry = rowSetMerge(p->pEntry, pHead);
  }




}

/*
** Extract the smallest element from the RowSet.
** Write the element into *pRowid.  Return 1 on success.  Return
** 0 if the RowSet is already empty.
**
** After this routine has been called, the sqlite3RowSetInsert()
** routine may not be called again.  
*/
SQLITE_PRIVATE int sqlite3RowSetNext(RowSet *p, i64 *pRowid){



  rowSetToList(p);


  if( p->pEntry ){
    *pRowid = p->pEntry->v;
    p->pEntry = p->pEntry->pRight;
    if( p->pEntry==0 ){
      sqlite3RowSetClear(p);
    }
    return 1;
................................................................................
    return 0;
  }
}

/*
** Check to see if element iRowid was inserted into the the rowset as
** part of any insert batch prior to iBatch.  Return 1 or 0.




*/
SQLITE_PRIVATE int sqlite3RowSetTest(RowSet *pRowSet, u8 iBatch, sqlite3_int64 iRowid){
  struct RowSetEntry *p;






  if( iBatch!=pRowSet->iBatch ){
    if( pRowSet->pEntry ){
      rowSetToList(pRowSet);








      pRowSet->pTree = rowSetListToTree(pRowSet->pEntry);
















      pRowSet->pEntry = 0;
      pRowSet->pLast = 0;

    }
    pRowSet->iBatch = iBatch;
  }
  p = pRowSet->pTree;






  while( p ){
    if( p->v<iRowid ){
      p = p->pRight;
    }else if( p->v>iRowid ){
      p = p->pLeft;
    }else{
      return 1;

    }
  }
  return 0;
}

/************** End of rowset.c **********************************************/
/************** Begin file pager.c *******************************************/
................................................................................
#define ISAUTOVACUUM 0
#endif


/*
** This structure is passed around through all the sanity checking routines
** in order to keep track of some global state information.






*/
typedef struct IntegrityCk IntegrityCk;
struct IntegrityCk {
  BtShared *pBt;    /* The tree being checked out */
  Pager *pPager;    /* The associated pager.  Also accessible by pBt->pPager */
  int *anRef;       /* Number of times each page is referenced */
  Pgno nPage;       /* Number of pages in the database */
  int mxErr;        /* Stop accumulating errors when this reaches zero */
  int nErr;         /* Number of messages written to zErrMsg so far */
  int mallocFailed; /* A memory allocation error has occurred */
  StrAccum errMsg;  /* Accumulate the error message text here */
};

................................................................................
  if( pCheck->errMsg.mallocFailed ){
    pCheck->mallocFailed = 1;
  }
}
#endif /* SQLITE_OMIT_INTEGRITY_CHECK */

#ifndef SQLITE_OMIT_INTEGRITY_CHECK



















/*
** Add 1 to the reference count for page iPage.  If this is the second
** reference to the page, add an error message to pCheck->zErrMsg.
** Return 1 if there are 2 ore more references to the page and 0 if
** if this is the first reference to the page.
**
** Also check that the page number is in bounds.
................................................................................
*/
static int checkRef(IntegrityCk *pCheck, Pgno iPage, char *zContext){
  if( iPage==0 ) return 1;
  if( iPage>pCheck->nPage ){
    checkAppendMsg(pCheck, zContext, "invalid page number %d", iPage);
    return 1;
  }
  if( pCheck->anRef[iPage]==1 ){
    checkAppendMsg(pCheck, zContext, "2nd reference to page %d", iPage);
    return 1;
  }
  return  (pCheck->anRef[iPage]++)>1;

}

#ifndef SQLITE_OMIT_AUTOVACUUM
/*
** Check that the entry in the pointer-map for page iChild maps to 
** page iParent, pointer type ptrType. If not, append an error message
** to pCheck.
................................................................................
  sCheck.nErr = 0;
  sCheck.mallocFailed = 0;
  *pnErr = 0;
  if( sCheck.nPage==0 ){
    sqlite3BtreeLeave(p);
    return 0;
  }
  sCheck.anRef = sqlite3Malloc( (sCheck.nPage+1)*sizeof(sCheck.anRef[0]) );
  if( !sCheck.anRef ){

    *pnErr = 1;
    sqlite3BtreeLeave(p);
    return 0;
  }
  for(i=0; i<=sCheck.nPage; i++){ sCheck.anRef[i] = 0; }
  i = PENDING_BYTE_PAGE(pBt);
  if( i<=sCheck.nPage ){
    sCheck.anRef[i] = 1;
  }
  sqlite3StrAccumInit(&sCheck.errMsg, zErr, sizeof(zErr), 20000);
  sCheck.errMsg.useMalloc = 2;

  /* Check the integrity of the freelist
  */
  checkList(&sCheck, 1, get4byte(&pBt->pPage1->aData[32]),
            get4byte(&pBt->pPage1->aData[36]), "Main freelist: ");
................................................................................
    checkTreePage(&sCheck, aRoot[i], "List of tree roots: ", NULL, NULL);
  }

  /* Make sure every page in the file is referenced
  */
  for(i=1; i<=sCheck.nPage && sCheck.mxErr; i++){
#ifdef SQLITE_OMIT_AUTOVACUUM
    if( sCheck.anRef[i]==0 ){
      checkAppendMsg(&sCheck, 0, "Page %d is never used", i);
    }
#else
    /* If the database supports auto-vacuum, make sure no tables contain
    ** references to pointer-map pages.
    */
    if( sCheck.anRef[i]==0 && 
       (PTRMAP_PAGENO(pBt, i)!=i || !pBt->autoVacuum) ){
      checkAppendMsg(&sCheck, 0, "Page %d is never used", i);
    }
    if( sCheck.anRef[i]!=0 && 
       (PTRMAP_PAGENO(pBt, i)==i && pBt->autoVacuum) ){
      checkAppendMsg(&sCheck, 0, "Pointer map page %d is referenced", i);
    }
#endif
  }

  /* Make sure this analysis did not leave any unref() pages.
................................................................................
      nRef, sqlite3PagerRefcount(pBt->pPager)
    );
  }

  /* Clean  up and report errors.
  */
  sqlite3BtreeLeave(p);
  sqlite3_free(sCheck.anRef);
  if( sCheck.mallocFailed ){
    sqlite3StrAccumReset(&sCheck.errMsg);
    *pnErr = sCheck.nErr+1;
    return 0;
  }
  *pnErr = sCheck.nErr;
  if( sCheck.nErr==0 ) sqlite3StrAccumReset(&sCheck.errMsg);
................................................................................

      testcase( pExpr->op==TK_CONST_FUNC );
      assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
      zId = pExpr->u.zToken;
      nId = sqlite3Strlen30(zId);
      pDef = sqlite3FindFunction(pParse->db, zId, nId, n, enc, 0);
      if( pDef==0 ){
        pDef = sqlite3FindFunction(pParse->db, zId, nId, -1, enc, 0);
        if( pDef==0 ){
          no_such_func = 1;
        }else{
          wrong_num_args = 1;
        }
      }else{
        is_agg = pDef->xFunc==0;
................................................................................
  if( sqlite3ExprCompare(pA->pRight, pB->pRight) ) return 2;
  if( sqlite3ExprListCompare(pA->x.pList, pB->x.pList) ) return 2;
  if( pA->iTable!=pB->iTable || pA->iColumn!=pB->iColumn ) return 2;
  if( ExprHasProperty(pA, EP_IntValue) ){
    if( !ExprHasProperty(pB, EP_IntValue) || pA->u.iValue!=pB->u.iValue ){
      return 2;
    }
  }else if( pA->op!=TK_COLUMN && pA->u.zToken ){
    if( ExprHasProperty(pB, EP_IntValue) || NEVER(pB->u.zToken==0) ) return 2;
    if( strcmp(pA->u.zToken,pB->u.zToken)!=0 ){
      return 2;
    }
  }
  if( (pA->flags & EP_ExpCollate)!=(pB->flags & EP_ExpCollate) ) return 1;
  if( (pA->flags & EP_ExpCollate)!=0 && pA->pColl!=pB->pColl ) return 2;
................................................................................
    Expr *pExprA = pA->a[i].pExpr;
    Expr *pExprB = pB->a[i].pExpr;
    if( pA->a[i].sortOrder!=pB->a[i].sortOrder ) return 1;
    if( sqlite3ExprCompare(pExprA, pExprB) ) return 1;
  }
  return 0;
}




































/*
** Add a new element to the pAggInfo->aCol[] array.  Return the index of
** the new element.  Return a negative number if malloc fails.
*/
static int addAggInfoColumn(sqlite3 *db, AggInfo *pInfo){
  int i;
................................................................................
            break;
          } /* endif pExpr->iTable==pItem->iCursor */
        } /* end loop over pSrcList */
      }
      return WRC_Prune;
    }
    case TK_AGG_FUNCTION: {
      /* The pNC->nDepth==0 test causes aggregate functions in subqueries
      ** to be ignored */
      if( pNC->nDepth==0 ){
        /* Check to see if pExpr is a duplicate of another aggregate 
        ** function that is already in the pAggInfo structure
        */
        struct AggInfo_func *pItem = pAggInfo->aFunc;
        for(i=0; i<pAggInfo->nFunc; i++, pItem++){
          if( sqlite3ExprCompare(pItem->pExpr, pExpr)==0 ){
            break;
................................................................................
        return WRC_Prune;
      }
    }
  }
  return WRC_Continue;
}
static int analyzeAggregatesInSelect(Walker *pWalker, Select *pSelect){
  NameContext *pNC = pWalker->u.pNC;
  if( pNC->nDepth==0 ){
    pNC->nDepth++;
    sqlite3WalkSelect(pWalker, pSelect);
    pNC->nDepth--;
    return WRC_Prune;
  }else{
    return WRC_Continue;
  }
}

/*
** Analyze the given expression looking for aggregate functions and
** for variables that need to be added to the pParse->aAgg[] array.
** Make additional entries to the pParse->aAgg[] array as necessary.
**
** This routine should only be called after the expression has been
** analyzed by sqlite3ResolveExprNames().
*/
SQLITE_PRIVATE void sqlite3ExprAnalyzeAggregates(NameContext *pNC, Expr *pExpr){
  Walker w;

  w.xExprCallback = analyzeAggregate;
  w.xSelectCallback = analyzeAggregatesInSelect;
  w.u.pNC = pNC;
  assert( pNC->pSrcList!=0 );
  sqlite3WalkExpr(&w, pExpr);
}

................................................................................
}

/* During the search for the best function definition, this procedure
** is called to test how well the function passed as the first argument
** matches the request for a function with nArg arguments in a system
** that uses encoding enc. The value returned indicates how well the
** request is matched. A higher value indicates a better match.
**
** The returned value is always between 0 and 6, as follows:
**
** 0: Not a match, or if nArg<0 and the function is has no implementation.
** 1: A variable arguments function that prefers UTF-8 when a UTF-16
**    encoding is requested, or vice versa.
** 2: A variable arguments function that uses UTF-16BE when UTF-16LE is
**    requested, or vice versa.
** 3: A variable arguments function using the same text encoding.
** 4: A function with the exact number of arguments requested that
**    prefers UTF-8 when a UTF-16 encoding is requested, or vice versa.
** 5: A function with the exact number of arguments requested that
**    prefers UTF-16LE when UTF-16BE is requested, or vice versa.
** 6: An exact match.
**
*/
static int matchQuality(FuncDef *p, int nArg, u8 enc){
  int match = 0;
  if( p->nArg==-1 || p->nArg==nArg 
   || (nArg==-1 && (p->xFunc!=0 || p->xStep!=0))
  ){
    match = 1;
    if( p->nArg==nArg || nArg==-1 ){
      match = 4;
    }
    if( enc==p->iPrefEnc ){
      match += 2;
    }
    else if( (enc==SQLITE_UTF16LE && p->iPrefEnc==SQLITE_UTF16BE) ||
             (enc==SQLITE_UTF16BE && p->iPrefEnc==SQLITE_UTF16LE) ){
      match += 1;
    }
  }



















  return match;
}

/*
** Search a FuncDefHash for a function with the given name.  Return
** a pointer to the matching FuncDef if found, or 0 if there is no match.
*/
................................................................................
** Locate a user function given a name, a number of arguments and a flag
** indicating whether the function prefers UTF-16 over UTF-8.  Return a
** pointer to the FuncDef structure that defines that function, or return
** NULL if the function does not exist.
**
** If the createFlag argument is true, then a new (blank) FuncDef
** structure is created and liked into the "db" structure if a
** no matching function previously existed.  When createFlag is true
** and the nArg parameter is -1, then only a function that accepts
** any number of arguments will be returned.
**
** If createFlag is false and nArg is -1, then the first valid
** function found is returned.  A function is valid if either xFunc
** or xStep is non-zero.
**
** If createFlag is false, then a function with the required name and
** number of arguments may be returned even if the eTextRep flag does not
** match that requested.
*/
SQLITE_PRIVATE FuncDef *sqlite3FindFunction(
  sqlite3 *db,       /* An open database */
  const char *zName, /* Name of the function.  Not null-terminated */
  int nName,         /* Number of characters in the name */
  int nArg,          /* Number of arguments.  -1 means any number */
  u8 enc,            /* Preferred text encoding */
  int createFlag     /* Create new entry if true and does not otherwise exist */
){
  FuncDef *p;         /* Iterator variable */
  FuncDef *pBest = 0; /* Best match found so far */
  int bestScore = 0;  /* Score of best match */
  int h;              /* Hash value */



  assert( enc==SQLITE_UTF8 || enc==SQLITE_UTF16LE || enc==SQLITE_UTF16BE );
  h = (sqlite3UpperToLower[(u8)zName[0]] + nName) % ArraySize(db->aFunc.a);

  /* First search for a match amongst the application-defined functions.
  */
  p = functionSearch(&db->aFunc, h, zName, nName);
  while( p ){
................................................................................
    }
  }

  /* If the createFlag parameter is true and the search did not reveal an
  ** exact match for the name, number of arguments and encoding, then add a
  ** new entry to the hash table and return it.
  */
  if( createFlag && (bestScore<6 || pBest->nArg!=nArg) && 
      (pBest = sqlite3DbMallocZero(db, sizeof(*pBest)+nName+1))!=0 ){
    pBest->zName = (char *)&pBest[1];
    pBest->nArg = (u16)nArg;
    pBest->iPrefEnc = enc;
    memcpy(pBest->zName, zName, nName);
    pBest->zName[nName] = 0;
    sqlite3FuncDefInsert(&db->aFunc, pBest);
................................................................................
    }
  }

  /***** If we reach this point, flattening is permitted. *****/

  /* Authorize the subquery */
  pParse->zAuthContext = pSubitem->zName;
  sqlite3AuthCheck(pParse, SQLITE_SELECT, 0, 0, 0);

  pParse->zAuthContext = zSavedAuthContext;

  /* If the sub-query is a compound SELECT statement, then (by restrictions
  ** 17 and 18 above) it must be a UNION ALL and the parent query must 
  ** be of the form:
  **
  **     SELECT <expr-list> FROM (<sub-query>) <where-clause> 
................................................................................
    }

    /* Advance to the next output block */
    pLeaf->iBlock++;
    pLeaf->key.n = 0;
    pLeaf->block.n = 0;

    nPrefix = 0;
    nSuffix = nTerm;
    nSpace  = 1;
    nSpace += sqlite3Fts3VarintLen(nSuffix) + nSuffix;
    nSpace += sqlite3Fts3VarintLen(nDoclist) + nDoclist;
  }

  blobGrowBuffer(&pLeaf->block, pLeaf->block.n + nSpace, &rc);
................................................................................
  int eCoordType;
};

/* Possible values for eCoordType: */
#define RTREE_COORD_REAL32 0
#define RTREE_COORD_INT32  1














/*
** The minimum number of cells allowed for a node is a third of the 
** maximum. In Gutman's notation:
**
**     m = M/3
**
** If an R*-tree "Reinsert" operation is required, the same number of
................................................................................
  int iCell;                        /* Index of current cell in pNode */
  int iStrategy;                    /* Copy of idxNum search parameter */
  int nConstraint;                  /* Number of entries in aConstraint */
  RtreeConstraint *aConstraint;     /* Search constraints. */
};

union RtreeCoord {
  float f;
  int i;
};

/*
** The argument is an RtreeCoord. Return the value stored within the RtreeCoord
** formatted as a double. This macro assumes that local variable pRtree points
** to the Rtree structure associated with the RtreeCoord.

*/



#define DCOORD(coord) (                           \
  (pRtree->eCoordType==RTREE_COORD_REAL32) ?      \
    ((double)coord.f) :                           \
    ((double)coord.i)                             \
)


/*
** A search constraint.
*/
struct RtreeConstraint {
  int iCoord;                     /* Index of constrained coordinate */
  int op;                         /* Constraining operation */
  double rValue;                  /* Constraint value. */
  int (*xGeom)(sqlite3_rtree_geometry *, int, double *, int *);
  sqlite3_rtree_geometry *pGeom;  /* Constraint callback argument for a MATCH */
};

/* Possible values for RtreeConstraint.op */
#define RTREE_EQ    0x41
#define RTREE_LE    0x42
#define RTREE_LT    0x43
................................................................................
/*
** An instance of this structure must be supplied as a blob argument to
** the right-hand-side of an SQL MATCH operator used to constrain an
** r-tree query.
*/
struct RtreeMatchArg {
  u32 magic;                      /* Always RTREE_GEOMETRY_MAGIC */
  int (*xGeom)(sqlite3_rtree_geometry *, int, double *, int *);
  void *pContext;
  int nParam;
  double aParam[1];
};

/*
** When a geometry callback is created (see sqlite3_rtree_geometry_callback),
** a single instance of the following structure is allocated. It is used
** as the context for the user-function created by by s_r_g_c(). The object
** is eventually deleted by the destructor mechanism provided by
** sqlite3_create_function_v2() (which is called by s_r_g_c() to create
** the geometry callback function).
*/
struct RtreeGeomCallback {
  int (*xGeom)(sqlite3_rtree_geometry *, int, double *, int *);
  void *pContext;
};

#ifndef MAX
# define MAX(x,y) ((x) < (y) ? (y) : (x))
#endif
#ifndef MIN
................................................................................
static int testRtreeGeom(
  Rtree *pRtree,                  /* R-Tree object */
  RtreeConstraint *pConstraint,   /* MATCH constraint to test */
  RtreeCell *pCell,               /* Cell to test */
  int *pbRes                      /* OUT: Test result */
){
  int i;
  double aCoord[RTREE_MAX_DIMENSIONS*2];
  int nCoord = pRtree->nDim*2;

  assert( pConstraint->op==RTREE_MATCH );
  assert( pConstraint->pGeom );

  for(i=0; i<nCoord; i++){
    aCoord[i] = DCOORD(pCell->aCoord[i]);
................................................................................
  int ii;
  int bRes = 0;
  int rc = SQLITE_OK;

  nodeGetCell(pRtree, pCursor->pNode, pCursor->iCell, &cell);
  for(ii=0; bRes==0 && ii<pCursor->nConstraint; ii++){
    RtreeConstraint *p = &pCursor->aConstraint[ii];
    double cell_min = DCOORD(cell.aCoord[(p->iCoord>>1)*2]);
    double cell_max = DCOORD(cell.aCoord[(p->iCoord>>1)*2+1]);

    assert(p->op==RTREE_LE || p->op==RTREE_LT || p->op==RTREE_GE 
        || p->op==RTREE_GT || p->op==RTREE_EQ || p->op==RTREE_MATCH
    );

    switch( p->op ){
      case RTREE_LE: case RTREE_LT: 
................................................................................
  RtreeCell cell;
  int ii;
  *pbEof = 0;

  nodeGetCell(pRtree, pCursor->pNode, pCursor->iCell, &cell);
  for(ii=0; ii<pCursor->nConstraint; ii++){
    RtreeConstraint *p = &pCursor->aConstraint[ii];
    double coord = DCOORD(cell.aCoord[p->iCoord]);
    int res;
    assert(p->op==RTREE_LE || p->op==RTREE_LT || p->op==RTREE_GE 
        || p->op==RTREE_GT || p->op==RTREE_EQ || p->op==RTREE_MATCH
    );
    switch( p->op ){
      case RTREE_LE: res = (coord<=p->rValue); break;
      case RTREE_LT: res = (coord<p->rValue);  break;
................................................................................

  if( i==0 ){
    i64 iRowid = nodeGetRowid(pRtree, pCsr->pNode, pCsr->iCell);
    sqlite3_result_int64(ctx, iRowid);
  }else{
    RtreeCoord c;
    nodeGetCoord(pRtree, pCsr->pNode, pCsr->iCell, i-1, &c);

    if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
      sqlite3_result_double(ctx, c.f);
    }else{


      assert( pRtree->eCoordType==RTREE_COORD_INT32 );
      sqlite3_result_int(ctx, c.i);
    }
  }

  return SQLITE_OK;
}
................................................................................

  /* Check that value is actually a blob. */
  if( sqlite3_value_type(pValue)!=SQLITE_BLOB ) return SQLITE_ERROR;

  /* Check that the blob is roughly the right size. */
  nBlob = sqlite3_value_bytes(pValue);
  if( nBlob<(int)sizeof(RtreeMatchArg) 
   || ((nBlob-sizeof(RtreeMatchArg))%sizeof(double))!=0
  ){
    return SQLITE_ERROR;
  }

  pGeom = (sqlite3_rtree_geometry *)sqlite3_malloc(
      sizeof(sqlite3_rtree_geometry) + nBlob
  );
  if( !pGeom ) return SQLITE_NOMEM;
  memset(pGeom, 0, sizeof(sqlite3_rtree_geometry));
  p = (RtreeMatchArg *)&pGeom[1];

  memcpy(p, sqlite3_value_blob(pValue), nBlob);
  if( p->magic!=RTREE_GEOMETRY_MAGIC 
   || nBlob!=(int)(sizeof(RtreeMatchArg) + (p->nParam-1)*sizeof(double))
  ){
    sqlite3_free(pGeom);
    return SQLITE_ERROR;
  }

  pGeom->pContext = p->pContext;
  pGeom->nParam = p->nParam;
................................................................................
            ** an sqlite3_rtree_geometry_callback() SQL user function.
            */
            rc = deserializeGeometry(argv[ii], p);
            if( rc!=SQLITE_OK ){
              break;
            }
          }else{



            p->rValue = sqlite3_value_double(argv[ii]);

          }
        }
      }
    }
  
    if( rc==SQLITE_OK ){
      pCsr->pNode = 0;
................................................................................
  pIdxInfo->estimatedCost = (2000000.0 / (double)(iIdx + 1));
  return rc;
}

/*
** Return the N-dimensional volumn of the cell stored in *p.
*/
static float cellArea(Rtree *pRtree, RtreeCell *p){
  float area = 1.0;
  int ii;
  for(ii=0; ii<(pRtree->nDim*2); ii+=2){
    area = (float)(area * (DCOORD(p->aCoord[ii+1]) - DCOORD(p->aCoord[ii])));
  }
  return area;
}

/*
** Return the margin length of cell p. The margin length is the sum
** of the objects size in each dimension.
*/
static float cellMargin(Rtree *pRtree, RtreeCell *p){
  float margin = 0.0;
  int ii;
  for(ii=0; ii<(pRtree->nDim*2); ii+=2){
    margin += (float)(DCOORD(p->aCoord[ii+1]) - DCOORD(p->aCoord[ii]));
  }
  return margin;
}

/*
** Store the union of cells p1 and p2 in p1.
*/
................................................................................
  }
  return 1;
}

/*
** Return the amount cell p would grow by if it were unioned with pCell.
*/
static float cellGrowth(Rtree *pRtree, RtreeCell *p, RtreeCell *pCell){
  float area;
  RtreeCell cell;
  memcpy(&cell, p, sizeof(RtreeCell));
  area = cellArea(pRtree, &cell);
  cellUnion(pRtree, &cell, pCell);
  return (cellArea(pRtree, &cell)-area);
}

#if VARIANT_RSTARTREE_CHOOSESUBTREE || VARIANT_RSTARTREE_SPLIT
static float cellOverlap(
  Rtree *pRtree, 
  RtreeCell *p, 
  RtreeCell *aCell, 
  int nCell, 
  int iExclude
){
  int ii;
  float overlap = 0.0;
  for(ii=0; ii<nCell; ii++){
#if VARIANT_RSTARTREE_CHOOSESUBTREE
    if( ii!=iExclude )
#else
    assert( iExclude==-1 );
    UNUSED_PARAMETER(iExclude);
#endif
    {
      int jj;
      float o = 1.0;
      for(jj=0; jj<(pRtree->nDim*2); jj+=2){
        double x1;
        double x2;

        x1 = MAX(DCOORD(p->aCoord[jj]), DCOORD(aCell[ii].aCoord[jj]));
        x2 = MIN(DCOORD(p->aCoord[jj+1]), DCOORD(aCell[ii].aCoord[jj+1]));

        if( x2<x1 ){
          o = 0.0;
          break;
        }else{
          o = o * (float)(x2-x1);
        }
      }
      overlap += o;
    }
  }
  return overlap;
}
#endif

#if VARIANT_RSTARTREE_CHOOSESUBTREE
static float cellOverlapEnlargement(
  Rtree *pRtree, 
  RtreeCell *p, 
  RtreeCell *pInsert, 
  RtreeCell *aCell, 
  int nCell, 
  int iExclude
){
  double before;
  double after;
  before = cellOverlap(pRtree, p, aCell, nCell, iExclude);
  cellUnion(pRtree, p, pInsert);
  after = cellOverlap(pRtree, p, aCell, nCell, iExclude);
  return (float)(after-before);
}
#endif


/*
** This function implements the ChooseLeaf algorithm from Gutman[84].
** ChooseSubTree in r*tree terminology.
................................................................................
  RtreeNode *pNode;
  rc = nodeAcquire(pRtree, 1, 0, &pNode);

  for(ii=0; rc==SQLITE_OK && ii<(pRtree->iDepth-iHeight); ii++){
    int iCell;
    sqlite3_int64 iBest = 0;

    float fMinGrowth = 0.0;
    float fMinArea = 0.0;
#if VARIANT_RSTARTREE_CHOOSESUBTREE
    float fMinOverlap = 0.0;
    float overlap;
#endif

    int nCell = NCELL(pNode);
    RtreeCell cell;
    RtreeNode *pChild;

    RtreeCell *aCell = 0;
................................................................................

    /* Select the child node which will be enlarged the least if pCell
    ** is inserted into it. Resolve ties by choosing the entry with
    ** the smallest area.
    */
    for(iCell=0; iCell<nCell; iCell++){
      int bBest = 0;
      float growth;
      float area;
      nodeGetCell(pRtree, pNode, iCell, &cell);
      growth = cellGrowth(pRtree, &cell, pCell);
      area = cellArea(pRtree, &cell);

#if VARIANT_RSTARTREE_CHOOSESUBTREE
      if( ii==(pRtree->iDepth-1) ){
        overlap = cellOverlapEnlargement(pRtree,&cell,pCell,aCell,nCell,iCell);
................................................................................
  int nCell, 
  int *piLeftSeed, 
  int *piRightSeed
){
  int i;
  int iLeftSeed = 0;
  int iRightSeed = 1;
  float maxNormalInnerWidth = 0.0;

  /* Pick two "seed" cells from the array of cells. The algorithm used
  ** here is the LinearPickSeeds algorithm from Gutman[1984]. The 
  ** indices of the two seed cells in the array are stored in local
  ** variables iLeftSeek and iRightSeed.
  */
  for(i=0; i<pRtree->nDim; i++){
    float x1 = DCOORD(aCell[0].aCoord[i*2]);
    float x2 = DCOORD(aCell[0].aCoord[i*2+1]);
    float x3 = x1;
    float x4 = x2;
    int jj;

    int iCellLeft = 0;
    int iCellRight = 0;

    for(jj=1; jj<nCell; jj++){
      float left = DCOORD(aCell[jj].aCoord[i*2]);
      float right = DCOORD(aCell[jj].aCoord[i*2+1]);

      if( left<x1 ) x1 = left;
      if( right>x4 ) x4 = right;
      if( left>x3 ){
        x3 = left;
        iCellRight = jj;
      }
................................................................................
      if( right<x2 ){
        x2 = right;
        iCellLeft = jj;
      }
    }

    if( x4!=x1 ){
      float normalwidth = (x3 - x2) / (x4 - x1);
      if( normalwidth>maxNormalInnerWidth ){
        iLeftSeed = iCellLeft;
        iRightSeed = iCellRight;
      }
    }
  }

................................................................................
  RtreeCell *pLeftBox, 
  RtreeCell *pRightBox,
  int *aiUsed
){
  #define FABS(a) ((a)<0.0?-1.0*(a):(a))

  int iSelect = -1;
  float fDiff;
  int ii;
  for(ii=0; ii<nCell; ii++){
    if( aiUsed[ii]==0 ){
      float left = cellGrowth(pRtree, pLeftBox, &aCell[ii]);
      float right = cellGrowth(pRtree, pLeftBox, &aCell[ii]);
      float diff = FABS(right-left);
      if( iSelect<0 || diff>fDiff ){
        fDiff = diff;
        iSelect = ii;
      }
    }
  }
  aiUsed[iSelect] = 1;
................................................................................
  int *piRightSeed
){
  int ii;
  int jj;

  int iLeftSeed = 0;
  int iRightSeed = 1;
  float fWaste = 0.0;

  for(ii=0; ii<nCell; ii++){
    for(jj=ii+1; jj<nCell; jj++){
      float right = cellArea(pRtree, &aCell[jj]);
      float growth = cellGrowth(pRtree, &aCell[ii], &aCell[jj]);
      float waste = growth - right;

      if( waste>fWaste ){
        iLeftSeed = ii;
        iRightSeed = jj;
        fWaste = waste;
      }
    }
................................................................................
**
** The aSpare array is used as temporary working space by the
** sorting algorithm.
*/
static void SortByDistance(
  int *aIdx, 
  int nIdx, 
  float *aDistance, 
  int *aSpare
){
  if( nIdx>1 ){
    int iLeft = 0;
    int iRight = 0;

    int nLeft = nIdx/2;
................................................................................
      if( iLeft==nLeft ){
        aIdx[iLeft+iRight] = aRight[iRight];
        iRight++;
      }else if( iRight==nRight ){
        aIdx[iLeft+iRight] = aLeft[iLeft];
        iLeft++;
      }else{
        float fLeft = aDistance[aLeft[iLeft]];
        float fRight = aDistance[aRight[iRight]];
        if( fLeft<fRight ){
          aIdx[iLeft+iRight] = aLeft[iLeft];
          iLeft++;
        }else{
          aIdx[iLeft+iRight] = aRight[iRight];
          iRight++;
        }
................................................................................
    }

#if 0
    /* Check that the sort worked */
    {
      int jj;
      for(jj=1; jj<nIdx; jj++){
        float left = aDistance[aIdx[jj-1]];
        float right = aDistance[aIdx[jj]];
        assert( left<=right );
      }
    }
#endif
  }
}

................................................................................

    SortByDimension(pRtree, aLeft, nLeft, iDim, aCell, aSpare);
    SortByDimension(pRtree, aRight, nRight, iDim, aCell, aSpare);

    memcpy(aSpare, aLeft, sizeof(int)*nLeft);
    aLeft = aSpare;
    while( iLeft<nLeft || iRight<nRight ){
      double xleft1 = DCOORD(aCell[aLeft[iLeft]].aCoord[iDim*2]);
      double xleft2 = DCOORD(aCell[aLeft[iLeft]].aCoord[iDim*2+1]);
      double xright1 = DCOORD(aCell[aRight[iRight]].aCoord[iDim*2]);
      double xright2 = DCOORD(aCell[aRight[iRight]].aCoord[iDim*2+1]);
      if( (iLeft!=nLeft) && ((iRight==nRight)
       || (xleft1<xright1)
       || (xleft1==xright1 && xleft2<xright2)
      )){
        aIdx[iLeft+iRight] = aLeft[iLeft];
        iLeft++;
      }else{
................................................................................
    }

#if 0
    /* Check that the sort worked */
    {
      int jj;
      for(jj=1; jj<nIdx; jj++){
        float xleft1 = aCell[aIdx[jj-1]].aCoord[iDim*2];
        float xleft2 = aCell[aIdx[jj-1]].aCoord[iDim*2+1];
        float xright1 = aCell[aIdx[jj]].aCoord[iDim*2];
        float xright2 = aCell[aIdx[jj]].aCoord[iDim*2+1];
        assert( xleft1<=xright1 && (xleft1<xright1 || xleft2<=xright2) );
      }
    }
#endif
  }
}

................................................................................
){
  int **aaSorted;
  int *aSpare;
  int ii;

  int iBestDim = 0;
  int iBestSplit = 0;
  float fBestMargin = 0.0;

  int nByte = (pRtree->nDim+1)*(sizeof(int*)+nCell*sizeof(int));

  aaSorted = (int **)sqlite3_malloc(nByte);
  if( !aaSorted ){
    return SQLITE_NOMEM;
  }
................................................................................
    for(jj=0; jj<nCell; jj++){
      aaSorted[ii][jj] = jj;
    }
    SortByDimension(pRtree, aaSorted[ii], nCell, ii, aCell, aSpare);
  }

  for(ii=0; ii<pRtree->nDim; ii++){
    float margin = 0.0;
    float fBestOverlap = 0.0;
    float fBestArea = 0.0;
    int iBestLeft = 0;
    int nLeft;

    for(
      nLeft=RTREE_MINCELLS(pRtree); 
      nLeft<=(nCell-RTREE_MINCELLS(pRtree)); 
      nLeft++
    ){
      RtreeCell left;
      RtreeCell right;
      int kk;
      float overlap;
      float area;

      memcpy(&left, &aCell[aaSorted[ii][0]], sizeof(RtreeCell));
      memcpy(&right, &aCell[aaSorted[ii][nCell-1]], sizeof(RtreeCell));
      for(kk=1; kk<(nCell-1); kk++){
        if( kk<nLeft ){
          cellUnion(pRtree, &left, &aCell[aaSorted[ii][kk]]);
        }else{
................................................................................
  nodeInsertCell(pRtree, pRight, &aCell[iRightSeed]);
  aiUsed[iLeftSeed] = 1;
  aiUsed[iRightSeed] = 1;

  for(i=nCell-2; i>0; i--){
    RtreeCell *pNext;
    pNext = PickNext(pRtree, aCell, nCell, pBboxLeft, pBboxRight, aiUsed);
    float diff =  
      cellGrowth(pRtree, pBboxLeft, pNext) - 
      cellGrowth(pRtree, pBboxRight, pNext)
    ;
    if( (RTREE_MINCELLS(pRtree)-NCELL(pRight)==i)
     || (diff>0.0 && (RTREE_MINCELLS(pRtree)-NCELL(pLeft)!=i))
    ){
      nodeInsertCell(pRtree, pRight, pNext);
................................................................................
  RtreeNode *pNode, 
  RtreeCell *pCell, 
  int iHeight
){
  int *aOrder;
  int *aSpare;
  RtreeCell *aCell;
  float *aDistance;
  int nCell;
  float aCenterCoord[RTREE_MAX_DIMENSIONS];
  int iDim;
  int ii;
  int rc = SQLITE_OK;


  memset(aCenterCoord, 0, sizeof(float)*RTREE_MAX_DIMENSIONS);

  nCell = NCELL(pNode)+1;


  /* Allocate the buffers used by this operation. The allocation is
  ** relinquished before this function returns.
  */
  aCell = (RtreeCell *)sqlite3_malloc(nCell * (
    sizeof(RtreeCell) +         /* aCell array */
    sizeof(int)       +         /* aOrder array */
    sizeof(int)       +         /* aSpare array */
    sizeof(float)               /* aDistance array */
  ));
  if( !aCell ){
    return SQLITE_NOMEM;
  }
  aOrder    = (int *)&aCell[nCell];
  aSpare    = (int *)&aOrder[nCell];
  aDistance = (float *)&aSpare[nCell];

  for(ii=0; ii<nCell; ii++){
    if( ii==(nCell-1) ){
      memcpy(&aCell[ii], pCell, sizeof(RtreeCell));
    }else{
      nodeGetCell(pRtree, pNode, ii, &aCell[ii]);
    }
    aOrder[ii] = ii;
    for(iDim=0; iDim<pRtree->nDim; iDim++){
      aCenterCoord[iDim] += (float)DCOORD(aCell[ii].aCoord[iDim*2]);
      aCenterCoord[iDim] += (float)DCOORD(aCell[ii].aCoord[iDim*2+1]);
    }
  }
  for(iDim=0; iDim<pRtree->nDim; iDim++){
    aCenterCoord[iDim] = (float)(aCenterCoord[iDim]/((float)nCell*2.0));
  }

  for(ii=0; ii<nCell; ii++){
    aDistance[ii] = 0.0;
    for(iDim=0; iDim<pRtree->nDim; iDim++){
      float coord = (float)(DCOORD(aCell[ii].aCoord[iDim*2+1]) - 
          DCOORD(aCell[ii].aCoord[iDim*2]));
      aDistance[ii] += (coord-aCenterCoord[iDim])*(coord-aCenterCoord[iDim]);
    }
  }

  SortByDistance(aOrder, nCell, aDistance, aSpare);
  nodeZero(pRtree, pNode);

................................................................................
  ** conflict-handling mode specified by the user.
  */
  if( nData>1 ){
    int ii;

    /* Populate the cell.aCoord[] array. The first coordinate is azData[3]. */
    assert( nData==(pRtree->nDim*2 + 3) );

    if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
      for(ii=0; ii<(pRtree->nDim*2); ii+=2){
        cell.aCoord[ii].f = (float)sqlite3_value_double(azData[ii+3]);
        cell.aCoord[ii+1].f = (float)sqlite3_value_double(azData[ii+4]);
        if( cell.aCoord[ii].f>cell.aCoord[ii+1].f ){
          rc = SQLITE_CONSTRAINT;
          goto constraint;
        }
      }
    }else{


      for(ii=0; ii<(pRtree->nDim*2); ii+=2){
        cell.aCoord[ii].i = sqlite3_value_int(azData[ii+3]);
        cell.aCoord[ii+1].i = sqlite3_value_int(azData[ii+4]);
        if( cell.aCoord[ii].i>cell.aCoord[ii+1].i ){
          rc = SQLITE_CONSTRAINT;
          goto constraint;
        }
................................................................................
    RtreeCell cell;
    int jj;

    nodeGetCell(&tree, &node, ii, &cell);
    sqlite3_snprintf(512-nCell,&zCell[nCell],"%lld", cell.iRowid);
    nCell = (int)strlen(zCell);
    for(jj=0; jj<tree.nDim*2; jj++){

      sqlite3_snprintf(512-nCell,&zCell[nCell]," %f",(double)cell.aCoord[jj].f);





      nCell = (int)strlen(zCell);
    }

    if( zText ){
      char *zTextNew = sqlite3_mprintf("%s {%s}", zText, zCell);
      sqlite3_free(zText);
      zText = zTextNew;
................................................................................
  int rc;

  rc = sqlite3_create_function(db, "rtreenode", 2, utf8, 0, rtreenode, 0, 0);
  if( rc==SQLITE_OK ){
    rc = sqlite3_create_function(db, "rtreedepth", 1, utf8, 0,rtreedepth, 0, 0);
  }
  if( rc==SQLITE_OK ){



    void *c = (void *)RTREE_COORD_REAL32;

    rc = sqlite3_create_module_v2(db, "rtree", &rtreeModule, c, 0);
  }
  if( rc==SQLITE_OK ){
    void *c = (void *)RTREE_COORD_INT32;
    rc = sqlite3_create_module_v2(db, "rtree_i32", &rtreeModule, c, 0);
  }

................................................................................
** table MATCH operators.
*/
static void geomCallback(sqlite3_context *ctx, int nArg, sqlite3_value **aArg){
  RtreeGeomCallback *pGeomCtx = (RtreeGeomCallback *)sqlite3_user_data(ctx);
  RtreeMatchArg *pBlob;
  int nBlob;

  nBlob = sizeof(RtreeMatchArg) + (nArg-1)*sizeof(double);
  pBlob = (RtreeMatchArg *)sqlite3_malloc(nBlob);
  if( !pBlob ){
    sqlite3_result_error_nomem(ctx);
  }else{
    int i;
    pBlob->magic = RTREE_GEOMETRY_MAGIC;
    pBlob->xGeom = pGeomCtx->xGeom;
    pBlob->pContext = pGeomCtx->pContext;
    pBlob->nParam = nArg;
    for(i=0; i<nArg; i++){



      pBlob->aParam[i] = sqlite3_value_double(aArg[i]);

    }
    sqlite3_result_blob(ctx, pBlob, nBlob, doSqlite3Free);
  }
}

/*
** Register a new geometry function for use with the r-tree MATCH operator.
*/
SQLITE_API int sqlite3_rtree_geometry_callback(
  sqlite3 *db,
  const char *zGeom,
  int (*xGeom)(sqlite3_rtree_geometry *, int, double *, int *),
  void *pContext
){
  RtreeGeomCallback *pGeomCtx;      /* Context object for new user-function */

  /* Allocate and populate the context object. */
  pGeomCtx = (RtreeGeomCallback *)sqlite3_malloc(sizeof(RtreeGeomCallback));
  if( !pGeomCtx ) return SQLITE_NOMEM;

**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.7.12"
#define SQLITE_VERSION_NUMBER 3007012
#define SQLITE_SOURCE_ID      "2012-04-17 09:09:33 8e2363ad76446e863d03ead91fd621e59d5cb495"

/*
** 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
................................................................................
** connection is opened. If it is globally disabled, filenames are
** only interpreted as URIs if the SQLITE_OPEN_URI flag is set when the
** database connection is opened. By default, URI handling is globally
** disabled. The default value may be changed by compiling with the
** [SQLITE_USE_URI] symbol defined.
**
** [[SQLITE_CONFIG_PCACHE]] [[SQLITE_CONFIG_GETPCACHE]]
** <dt>SQLITE_CONFIG_PCACHE and SQLITE_CONFIG_GETPCACHE
** <dd> These options are obsolete and should not be used by new code.
** They are retained for backwards compatibility but are now no-ops.
** </dl>
*/
#define SQLITE_CONFIG_SINGLETHREAD  1  /* nil */
#define SQLITE_CONFIG_MULTITHREAD   2  /* nil */
#define SQLITE_CONFIG_SERIALIZED    3  /* nil */
................................................................................
** R-Tree geometry query as follows:
**
**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...)
*/
SQLITE_API int sqlite3_rtree_geometry_callback(
  sqlite3 *db,
  const char *zGeom,
#ifdef SQLITE_RTREE_INT_ONLY
  int (*xGeom)(sqlite3_rtree_geometry*, int n, sqlite3_int64 *a, int *pRes),
#else
  int (*xGeom)(sqlite3_rtree_geometry*, int n, double *a, int *pRes),
#endif
  void *pContext
);


/*
** A pointer to a structure of the following type is passed as the first
** argument to callbacks registered using rtree_geometry_callback().
................................................................................
  SrcList *pSrcList;   /* One or more tables used to resolve names */
  ExprList *pEList;    /* Optional list of named expressions */
  int nRef;            /* Number of names resolved by this context */
  int nErr;            /* Number of errors encountered while resolving names */
  u8 allowAgg;         /* Aggregate functions allowed here */
  u8 hasAgg;           /* True if aggregates are seen */
  u8 isCheck;          /* True if resolving names in a CHECK constraint */

  AggInfo *pAggInfo;   /* Information about aggregates at this level */
  NameContext *pNext;  /* Next outer name context.  NULL for outermost */
};

/*
** An instance of the following structure contains all information
** needed to generate code for a single SELECT statement.
................................................................................
struct Walker {
  int (*xExprCallback)(Walker*, Expr*);     /* Callback for expressions */
  int (*xSelectCallback)(Walker*,Select*);  /* Callback for SELECTs */
  Parse *pParse;                            /* Parser context.  */
  union {                                   /* Extra data for callback */
    NameContext *pNC;                          /* Naming context */
    int i;                                     /* Integer value */
    SrcList *pSrcList;                         /* FROM clause */
  } u;
};

/* Forward declarations */
SQLITE_PRIVATE int sqlite3WalkExpr(Walker*, Expr*);
SQLITE_PRIVATE int sqlite3WalkExprList(Walker*, ExprList*);
SQLITE_PRIVATE int sqlite3WalkSelect(Walker*, Select*);
................................................................................
SQLITE_PRIVATE void sqlite3HaltConstraint(Parse*, int, char*, int);
SQLITE_PRIVATE Expr *sqlite3ExprDup(sqlite3*,Expr*,int);
SQLITE_PRIVATE ExprList *sqlite3ExprListDup(sqlite3*,ExprList*,int);
SQLITE_PRIVATE SrcList *sqlite3SrcListDup(sqlite3*,SrcList*,int);
SQLITE_PRIVATE IdList *sqlite3IdListDup(sqlite3*,IdList*);
SQLITE_PRIVATE Select *sqlite3SelectDup(sqlite3*,Select*,int);
SQLITE_PRIVATE void sqlite3FuncDefInsert(FuncDefHash*, FuncDef*);
SQLITE_PRIVATE FuncDef *sqlite3FindFunction(sqlite3*,const char*,int,int,u8,u8);
SQLITE_PRIVATE void sqlite3RegisterBuiltinFunctions(sqlite3*);
SQLITE_PRIVATE void sqlite3RegisterDateTimeFunctions(void);
SQLITE_PRIVATE void sqlite3RegisterGlobalFunctions(void);
SQLITE_PRIVATE int sqlite3SafetyCheckOk(sqlite3*);
SQLITE_PRIVATE int sqlite3SafetyCheckSickOrOk(sqlite3*);
SQLITE_PRIVATE void sqlite3ChangeCookie(Parse*, int);

................................................................................
** Default permissions when creating a new file
*/
#ifndef SQLITE_DEFAULT_FILE_PERMISSIONS
# define SQLITE_DEFAULT_FILE_PERMISSIONS 0644
#endif

/*
** Default permissions when creating auto proxy dir
*/
#ifndef SQLITE_DEFAULT_PROXYDIR_PERMISSIONS
# define SQLITE_DEFAULT_PROXYDIR_PERMISSIONS 0755
#endif

/*
** Maximum supported path-length.
*/
................................................................................
    if( aSyscall[i].pCurrent!=0 ) return aSyscall[i].zName;
  }
  return 0;
}

/*
** Invoke open().  Do so multiple times, until it either succeeds or
** fails for some reason other than EINTR.
**
** If the file creation mode "m" is 0 then set it to the default for
** SQLite.  The default is SQLITE_DEFAULT_FILE_PERMISSIONS (normally
** 0644) as modified by the system umask.  If m is not 0, then
** make the file creation mode be exactly m ignoring the umask.
**
** The m parameter will be non-zero only when creating -wal, -journal,
................................................................................
** permissions as their original database, unadulterated by the umask.
** In that way, if a database file is -rw-rw-rw or -rw-rw-r-, and a
** transaction crashes and leaves behind hot journals, then any
** process that is able to write to the database will also be able to
** recover the hot journals.
*/
static int robust_open(const char *z, int f, mode_t m){
  int fd;
  mode_t m2;
  mode_t origM = 0;
  if( m==0 ){
    m2 = SQLITE_DEFAULT_FILE_PERMISSIONS;
  }else{
    m2 = m;
    origM = osUmask(0);
  }
  do{
#if defined(O_CLOEXEC)
    fd = osOpen(z,f|O_CLOEXEC,m2);
#else
    fd = osOpen(z,f,m2);
#endif
  }while( fd<0 && errno==EINTR );
  if( m ){
    osUmask(origM);
  }
#if defined(FD_CLOEXEC) && (!defined(O_CLOEXEC) || O_CLOEXEC==0)
  if( fd>=0 ) osFcntl(fd, F_SETFD, osFcntl(fd, F_GETFD, 0) | FD_CLOEXEC);
#endif
  return fd;
}

/*
** Helper functions to obtain and relinquish the global mutex. The
** global mutex is used to protect the unixInodeInfo and
** vxworksFileId objects used by this file, all of which may be 
** shared by multiple threads.
................................................................................

  sqlite3_snprintf(MAX_PATHNAME, zDirname, "%s", zFilename);
  for(ii=(int)strlen(zDirname); ii>1 && zDirname[ii]!='/'; ii--);
  if( ii>0 ){
    zDirname[ii] = '\0';
    fd = robust_open(zDirname, O_RDONLY|O_BINARY, 0);
    if( fd>=0 ){



      OSTRACE(("OPENDIR %-3d %s\n", fd, zDirname));
    }
  }
  *pFd = fd;
  return (fd>=0?SQLITE_OK:unixLogError(SQLITE_CANTOPEN_BKPT, "open", zDirname));
}

................................................................................
  SimulateIOError( return SQLITE_IOERR_TRUNCATE );

  /* If the user has configured a chunk-size for this file, truncate the
  ** file so that it consists of an integer number of chunks (i.e. the
  ** actual file size after the operation may be larger than the requested
  ** size).
  */
  if( pFile->szChunk>0 ){
    nByte = ((nByte + pFile->szChunk - 1)/pFile->szChunk) * pFile->szChunk;
  }

  rc = robust_ftruncate(pFile->h, (off_t)nByte);
  if( rc ){
    pFile->lastErrno = errno;
    return unixLogError(SQLITE_IOERR_TRUNCATE, "ftruncate", pFile->zPath);
................................................................................
  }
#if SQLITE_ENABLE_LOCKING_STYLE
  else{
    p->openFlags = openFlags;
  }
#endif





  noLock = eType!=SQLITE_OPEN_MAIN_DB;

  
#if defined(__APPLE__) || SQLITE_ENABLE_LOCKING_STYLE
  if( fstatfs(fd, &fsInfo) == -1 ){
    ((unixFile*)pFile)->lastErrno = errno;
    robust_close(p, fd, __LINE__);
................................................................................
** The number of rowset entries per allocation chunk.
*/
#define ROWSET_ENTRY_PER_CHUNK  \
                       ((ROWSET_ALLOCATION_SIZE-8)/sizeof(struct RowSetEntry))

/*
** Each entry in a RowSet is an instance of the following object.
**
** This same object is reused to store a linked list of trees of RowSetEntry
** objects.  In that alternative use, pRight points to the next entry
** in the list, pLeft points to the tree, and v is unused.  The
** RowSet.pForest value points to the head of this forest list.
*/
struct RowSetEntry {            
  i64 v;                        /* ROWID value for this entry */
  struct RowSetEntry *pRight;   /* Right subtree (larger entries) or list */
  struct RowSetEntry *pLeft;    /* Left subtree (smaller entries) */
};

................................................................................
*/
struct RowSet {
  struct RowSetChunk *pChunk;    /* List of all chunk allocations */
  sqlite3 *db;                   /* The database connection */
  struct RowSetEntry *pEntry;    /* List of entries using pRight */
  struct RowSetEntry *pLast;     /* Last entry on the pEntry list */
  struct RowSetEntry *pFresh;    /* Source of new entry objects */
  struct RowSetEntry *pForest;   /* List of binary trees of entries */
  u16 nFresh;                    /* Number of objects on pFresh */
  u8 rsFlags;                    /* Various flags */
  u8 iBatch;                     /* Current insert batch */
};

/*
** Allowed values for RowSet.rsFlags
*/
#define ROWSET_SORTED  0x01   /* True if RowSet.pEntry is sorted */
#define ROWSET_NEXT    0x02   /* True if sqlite3RowSetNext() has been called */

/*
** Turn bulk memory into a RowSet object.  N bytes of memory
** are available at pSpace.  The db pointer is used as a memory context
** for any subsequent allocations that need to occur.
** Return a pointer to the new RowSet object.
**
** It must be the case that N is sufficient to make a Rowset.  If not
................................................................................
  RowSet *p;
  assert( N >= ROUND8(sizeof(*p)) );
  p = pSpace;
  p->pChunk = 0;
  p->db = db;
  p->pEntry = 0;
  p->pLast = 0;
  p->pForest = 0;
  p->pFresh = (struct RowSetEntry*)(ROUND8(sizeof(*p)) + (char*)p);
  p->nFresh = (u16)((N - ROUND8(sizeof(*p)))/sizeof(struct RowSetEntry));
  p->rsFlags = ROWSET_SORTED;
  p->iBatch = 0;
  return p;
}

/*
** Deallocate all chunks from a RowSet.  This frees all memory that
** the RowSet has allocated over its lifetime.  This routine is
................................................................................
    pNextChunk = pChunk->pNextChunk;
    sqlite3DbFree(p->db, pChunk);
  }
  p->pChunk = 0;
  p->nFresh = 0;
  p->pEntry = 0;
  p->pLast = 0;
  p->pForest = 0;
  p->rsFlags = ROWSET_SORTED;
}

/*
** Allocate a new RowSetEntry object that is associated with the
** given RowSet.  Return a pointer to the new and completely uninitialized
** objected.
**
** In an OOM situation, the RowSet.db->mallocFailed flag is set and this
** routine returns NULL.
*/
static struct RowSetEntry *rowSetEntryAlloc(RowSet *p){
  assert( p!=0 );
  if( p->nFresh==0 ){
    struct RowSetChunk *pNew;
    pNew = sqlite3DbMallocRaw(p->db, sizeof(*pNew));
    if( pNew==0 ){
      return 0;
    }
    pNew->pNextChunk = p->pChunk;
    p->pChunk = pNew;
    p->pFresh = pNew->aEntry;
    p->nFresh = ROWSET_ENTRY_PER_CHUNK;
  }
  p->nFresh--;
  return p->pFresh++;
}

/*
** Insert a new value into a RowSet.
**
** The mallocFailed flag of the database connection is set if a
** memory allocation fails.
*/
SQLITE_PRIVATE void sqlite3RowSetInsert(RowSet *p, i64 rowid){
  struct RowSetEntry *pEntry;  /* The new entry */
  struct RowSetEntry *pLast;   /* The last prior entry */











  /* This routine is never called after sqlite3RowSetNext() */
  assert( p!=0 && (p->rsFlags & ROWSET_NEXT)==0 );



  pEntry = rowSetEntryAlloc(p);
  if( pEntry==0 ) return;
  pEntry->v = rowid;
  pEntry->pRight = 0;
  pLast = p->pLast;
  if( pLast ){
    if( (p->rsFlags & ROWSET_SORTED)!=0 && rowid<=pLast->v ){
      p->rsFlags &= ~ROWSET_SORTED;
    }
    pLast->pRight = pEntry;
  }else{

    p->pEntry = pEntry;
  }
  p->pLast = pEntry;
}

/*
** Merge two lists of RowSetEntry objects.  Remove duplicates.
**
** The input lists are connected via pRight pointers and are 
** assumed to each already be in sorted order.
*/
static struct RowSetEntry *rowSetEntryMerge(
  struct RowSetEntry *pA,    /* First sorted list to be merged */
  struct RowSetEntry *pB     /* Second sorted list to be merged */
){
  struct RowSetEntry head;
  struct RowSetEntry *pTail;

  pTail = &head;
................................................................................
    assert( pB==0 || pB->pRight==0 || pB->v<=pB->pRight->v );
    pTail->pRight = pB;
  }
  return head.pRight;
}

/*
** Sort all elements on the list of RowSetEntry objects into order of
** increasing v.
*/ 

static struct RowSetEntry *rowSetEntrySort(struct RowSetEntry *pIn){
  unsigned int i;
  struct RowSetEntry *pNext, *aBucket[40];



  memset(aBucket, 0, sizeof(aBucket));
  while( pIn ){

    pNext = pIn->pRight;
    pIn->pRight = 0;
    for(i=0; aBucket[i]; i++){
      pIn = rowSetEntryMerge(aBucket[i], pIn);
      aBucket[i] = 0;
    }
    aBucket[i] = pIn;
    pIn = pNext;
  }
  pIn = 0;
  for(i=0; i<sizeof(aBucket)/sizeof(aBucket[0]); i++){

    pIn = rowSetEntryMerge(pIn, aBucket[i]);
  }



  return pIn;
}


/*
** The input, pIn, is a binary tree (or subtree) of RowSetEntry objects.
** Convert this tree into a linked list connected by the pRight pointers
** and return pointers to the first and last elements of the new list.
................................................................................
    p->pLeft = pLeft;
    p->pRight = rowSetNDeepTree(&pList, iDepth);
  }
  return p;
}

/*
** Take all the entries on p->pEntry and on the trees in p->pForest and
** sort them all together into one big ordered list on p->pEntry.
**
** This routine should only be called once in the life of a RowSet.
*/
static void rowSetToList(RowSet *p){



  /* This routine is called only once */
  assert( p!=0 && (p->rsFlags & ROWSET_NEXT)==0 );

  if( (p->rsFlags & ROWSET_SORTED)==0 ){
    p->pEntry = rowSetEntrySort(p->pEntry);
  }

  /* While this module could theoretically support it, sqlite3RowSetNext()
  ** is never called after sqlite3RowSetText() for the same RowSet.  So
  ** there is never a forest to deal with.  Should this change, simply
  ** remove the assert() and the #if 0. */
  assert( p->pForest==0 );
#if 0
  while( p->pForest ){
    struct RowSetEntry *pTree = p->pForest->pLeft;
    if( pTree ){
      struct RowSetEntry *pHead, *pTail;
      rowSetTreeToList(pTree, &pHead, &pTail);

      p->pEntry = rowSetEntryMerge(p->pEntry, pHead);
    }
    p->pForest = p->pForest->pRight;
  }
#endif
  p->rsFlags |= ROWSET_NEXT;  /* Verify this routine is never called again */
}

/*
** Extract the smallest element from the RowSet.
** Write the element into *pRowid.  Return 1 on success.  Return
** 0 if the RowSet is already empty.
**
** After this routine has been called, the sqlite3RowSetInsert()
** routine may not be called again.  
*/
SQLITE_PRIVATE int sqlite3RowSetNext(RowSet *p, i64 *pRowid){
  assert( p!=0 );

  /* Merge the forest into a single sorted list on first call */
  if( (p->rsFlags & ROWSET_NEXT)==0 ) rowSetToList(p);

  /* Return the next entry on the list */
  if( p->pEntry ){
    *pRowid = p->pEntry->v;
    p->pEntry = p->pEntry->pRight;
    if( p->pEntry==0 ){
      sqlite3RowSetClear(p);
    }
    return 1;
................................................................................
    return 0;
  }
}

/*
** Check to see if element iRowid was inserted into the the rowset as
** part of any insert batch prior to iBatch.  Return 1 or 0.
**
** If this is the first test of a new batch and if there exist entires
** on pRowSet->pEntry, then sort those entires into the forest at
** pRowSet->pForest so that they can be tested.
*/
SQLITE_PRIVATE int sqlite3RowSetTest(RowSet *pRowSet, u8 iBatch, sqlite3_int64 iRowid){
  struct RowSetEntry *p, *pTree;

  /* This routine is never called after sqlite3RowSetNext() */
  assert( pRowSet!=0 && (pRowSet->rsFlags & ROWSET_NEXT)==0 );

  /* Sort entries into the forest on the first test of a new batch 
  */
  if( iBatch!=pRowSet->iBatch ){
    p = pRowSet->pEntry;

    if( p ){
      struct RowSetEntry **ppPrevTree = &pRowSet->pForest;
      if( (pRowSet->rsFlags & ROWSET_SORTED)==0 ){
        p = rowSetEntrySort(p);
      }
      for(pTree = pRowSet->pForest; pTree; pTree=pTree->pRight){
        ppPrevTree = &pTree->pRight;
        if( pTree->pLeft==0 ){
          pTree->pLeft = rowSetListToTree(p);
          break;
        }else{
          struct RowSetEntry *pAux, *pTail;
          rowSetTreeToList(pTree->pLeft, &pAux, &pTail);
          pTree->pLeft = 0;
          p = rowSetEntryMerge(pAux, p);
        }
      }
      if( pTree==0 ){
        *ppPrevTree = pTree = rowSetEntryAlloc(pRowSet);
        if( pTree ){
          pTree->v = 0;
          pTree->pRight = 0;
          pTree->pLeft = rowSetListToTree(p);
        }
      }
      pRowSet->pEntry = 0;
      pRowSet->pLast = 0;
      pRowSet->rsFlags |= ROWSET_SORTED;
    }
    pRowSet->iBatch = iBatch;
  }


  /* Test to see if the iRowid value appears anywhere in the forest.
  ** Return 1 if it does and 0 if not.
  */
  for(pTree = pRowSet->pForest; pTree; pTree=pTree->pRight){
    p = pTree->pLeft;
    while( p ){
      if( p->v<iRowid ){
        p = p->pRight;
      }else if( p->v>iRowid ){
        p = p->pLeft;
      }else{
        return 1;
      }
    }
  }
  return 0;
}

/************** End of rowset.c **********************************************/
/************** Begin file pager.c *******************************************/
................................................................................
#define ISAUTOVACUUM 0
#endif


/*
** This structure is passed around through all the sanity checking routines
** in order to keep track of some global state information.
**
** The aRef[] array is allocated so that there is 1 bit for each page in
** the database. As the integrity-check proceeds, for each page used in
** the database the corresponding bit is set. This allows integrity-check to 
** detect pages that are used twice and orphaned pages (both of which 
** indicate corruption).
*/
typedef struct IntegrityCk IntegrityCk;
struct IntegrityCk {
  BtShared *pBt;    /* The tree being checked out */
  Pager *pPager;    /* The associated pager.  Also accessible by pBt->pPager */
  u8 *aPgRef;       /* 1 bit per page in the db (see above) */
  Pgno nPage;       /* Number of pages in the database */
  int mxErr;        /* Stop accumulating errors when this reaches zero */
  int nErr;         /* Number of messages written to zErrMsg so far */
  int mallocFailed; /* A memory allocation error has occurred */
  StrAccum errMsg;  /* Accumulate the error message text here */
};

................................................................................
  if( pCheck->errMsg.mallocFailed ){
    pCheck->mallocFailed = 1;
  }
}
#endif /* SQLITE_OMIT_INTEGRITY_CHECK */

#ifndef SQLITE_OMIT_INTEGRITY_CHECK

/*
** Return non-zero if the bit in the IntegrityCk.aPgRef[] array that
** corresponds to page iPg is already set.
*/
static int getPageReferenced(IntegrityCk *pCheck, Pgno iPg){
  assert( iPg<=pCheck->nPage && sizeof(pCheck->aPgRef[0])==1 );
  return (pCheck->aPgRef[iPg/8] & (1 << (iPg & 0x07)));
}

/*
** Set the bit in the IntegrityCk.aPgRef[] array that corresponds to page iPg.
*/
static void setPageReferenced(IntegrityCk *pCheck, Pgno iPg){
  assert( iPg<=pCheck->nPage && sizeof(pCheck->aPgRef[0])==1 );
  pCheck->aPgRef[iPg/8] |= (1 << (iPg & 0x07));
}


/*
** Add 1 to the reference count for page iPage.  If this is the second
** reference to the page, add an error message to pCheck->zErrMsg.
** Return 1 if there are 2 ore more references to the page and 0 if
** if this is the first reference to the page.
**
** Also check that the page number is in bounds.
................................................................................
*/
static int checkRef(IntegrityCk *pCheck, Pgno iPage, char *zContext){
  if( iPage==0 ) return 1;
  if( iPage>pCheck->nPage ){
    checkAppendMsg(pCheck, zContext, "invalid page number %d", iPage);
    return 1;
  }
  if( getPageReferenced(pCheck, iPage) ){
    checkAppendMsg(pCheck, zContext, "2nd reference to page %d", iPage);
    return 1;
  }
  setPageReferenced(pCheck, iPage);
  return 0;
}

#ifndef SQLITE_OMIT_AUTOVACUUM
/*
** Check that the entry in the pointer-map for page iChild maps to 
** page iParent, pointer type ptrType. If not, append an error message
** to pCheck.
................................................................................
  sCheck.nErr = 0;
  sCheck.mallocFailed = 0;
  *pnErr = 0;
  if( sCheck.nPage==0 ){
    sqlite3BtreeLeave(p);
    return 0;
  }

  sCheck.aPgRef = sqlite3MallocZero((sCheck.nPage / 8)+ 1);
  if( !sCheck.aPgRef ){
    *pnErr = 1;
    sqlite3BtreeLeave(p);
    return 0;
  }

  i = PENDING_BYTE_PAGE(pBt);
  if( i<=sCheck.nPage ) setPageReferenced(&sCheck, i);


  sqlite3StrAccumInit(&sCheck.errMsg, zErr, sizeof(zErr), 20000);
  sCheck.errMsg.useMalloc = 2;

  /* Check the integrity of the freelist
  */
  checkList(&sCheck, 1, get4byte(&pBt->pPage1->aData[32]),
            get4byte(&pBt->pPage1->aData[36]), "Main freelist: ");
................................................................................
    checkTreePage(&sCheck, aRoot[i], "List of tree roots: ", NULL, NULL);
  }

  /* Make sure every page in the file is referenced
  */
  for(i=1; i<=sCheck.nPage && sCheck.mxErr; i++){
#ifdef SQLITE_OMIT_AUTOVACUUM
    if( getPageReferenced(&sCheck, i)==0 ){
      checkAppendMsg(&sCheck, 0, "Page %d is never used", i);
    }
#else
    /* If the database supports auto-vacuum, make sure no tables contain
    ** references to pointer-map pages.
    */
    if( getPageReferenced(&sCheck, i)==0 && 
       (PTRMAP_PAGENO(pBt, i)!=i || !pBt->autoVacuum) ){
      checkAppendMsg(&sCheck, 0, "Page %d is never used", i);
    }
    if( getPageReferenced(&sCheck, i)!=0 && 
       (PTRMAP_PAGENO(pBt, i)==i && pBt->autoVacuum) ){
      checkAppendMsg(&sCheck, 0, "Pointer map page %d is referenced", i);
    }
#endif
  }

  /* Make sure this analysis did not leave any unref() pages.
................................................................................
      nRef, sqlite3PagerRefcount(pBt->pPager)
    );
  }

  /* Clean  up and report errors.
  */
  sqlite3BtreeLeave(p);
  sqlite3_free(sCheck.aPgRef);
  if( sCheck.mallocFailed ){
    sqlite3StrAccumReset(&sCheck.errMsg);
    *pnErr = sCheck.nErr+1;
    return 0;
  }
  *pnErr = sCheck.nErr;
  if( sCheck.nErr==0 ) sqlite3StrAccumReset(&sCheck.errMsg);
................................................................................

      testcase( pExpr->op==TK_CONST_FUNC );
      assert( !ExprHasProperty(pExpr, EP_xIsSelect) );
      zId = pExpr->u.zToken;
      nId = sqlite3Strlen30(zId);
      pDef = sqlite3FindFunction(pParse->db, zId, nId, n, enc, 0);
      if( pDef==0 ){
        pDef = sqlite3FindFunction(pParse->db, zId, nId, -2, enc, 0);
        if( pDef==0 ){
          no_such_func = 1;
        }else{
          wrong_num_args = 1;
        }
      }else{
        is_agg = pDef->xFunc==0;
................................................................................
  if( sqlite3ExprCompare(pA->pRight, pB->pRight) ) return 2;
  if( sqlite3ExprListCompare(pA->x.pList, pB->x.pList) ) return 2;
  if( pA->iTable!=pB->iTable || pA->iColumn!=pB->iColumn ) return 2;
  if( ExprHasProperty(pA, EP_IntValue) ){
    if( !ExprHasProperty(pB, EP_IntValue) || pA->u.iValue!=pB->u.iValue ){
      return 2;
    }
  }else if( pA->op!=TK_COLUMN && pA->op!=TK_AGG_COLUMN && pA->u.zToken ){
    if( ExprHasProperty(pB, EP_IntValue) || NEVER(pB->u.zToken==0) ) return 2;
    if( strcmp(pA->u.zToken,pB->u.zToken)!=0 ){
      return 2;
    }
  }
  if( (pA->flags & EP_ExpCollate)!=(pB->flags & EP_ExpCollate) ) return 1;
  if( (pA->flags & EP_ExpCollate)!=0 && pA->pColl!=pB->pColl ) return 2;
................................................................................
    Expr *pExprA = pA->a[i].pExpr;
    Expr *pExprB = pB->a[i].pExpr;
    if( pA->a[i].sortOrder!=pB->a[i].sortOrder ) return 1;
    if( sqlite3ExprCompare(pExprA, pExprB) ) return 1;
  }
  return 0;
}

/*
** This is the expression callback for sqlite3FunctionUsesOtherSrc().
**
** Determine if an expression references any table other than one of the
** tables in pWalker->u.pSrcList and abort if it does.
*/
static int exprUsesOtherSrc(Walker *pWalker, Expr *pExpr){
  if( pExpr->op==TK_COLUMN || pExpr->op==TK_AGG_COLUMN ){
    int i;
    SrcList *pSrc = pWalker->u.pSrcList;
    for(i=0; i<pSrc->nSrc; i++){
      if( pExpr->iTable==pSrc->a[i].iCursor ) return WRC_Continue;
    }
    return WRC_Abort;
  }else{
    return WRC_Continue;
  }
}

/*
** Determine if any of the arguments to the pExpr Function references
** any SrcList other than pSrcList.  Return true if they do.  Return
** false if pExpr has no argument or has only constant arguments or
** only references tables named in pSrcList.
*/
static int sqlite3FunctionUsesOtherSrc(Expr *pExpr, SrcList *pSrcList){
  Walker w;
  assert( pExpr->op==TK_AGG_FUNCTION );
  memset(&w, 0, sizeof(w));
  w.xExprCallback = exprUsesOtherSrc;
  w.u.pSrcList = pSrcList;
  if( sqlite3WalkExprList(&w, pExpr->x.pList)!=WRC_Continue ) return 1;
  return 0;
}

/*
** Add a new element to the pAggInfo->aCol[] array.  Return the index of
** the new element.  Return a negative number if malloc fails.
*/
static int addAggInfoColumn(sqlite3 *db, AggInfo *pInfo){
  int i;
................................................................................
            break;
          } /* endif pExpr->iTable==pItem->iCursor */
        } /* end loop over pSrcList */
      }
      return WRC_Prune;
    }
    case TK_AGG_FUNCTION: {
      if( !sqlite3FunctionUsesOtherSrc(pExpr, pSrcList) ){


        /* Check to see if pExpr is a duplicate of another aggregate 
        ** function that is already in the pAggInfo structure
        */
        struct AggInfo_func *pItem = pAggInfo->aFunc;
        for(i=0; i<pAggInfo->nFunc; i++, pItem++){
          if( sqlite3ExprCompare(pItem->pExpr, pExpr)==0 ){
            break;
................................................................................
        return WRC_Prune;
      }
    }
  }
  return WRC_Continue;
}
static int analyzeAggregatesInSelect(Walker *pWalker, Select *pSelect){







  return WRC_Continue;

}

/*
** Analyze the given expression looking for aggregate functions and
** for variables that need to be added to the pParse->aAgg[] array.
** Make additional entries to the pParse->aAgg[] array as necessary.
**
** This routine should only be called after the expression has been
** analyzed by sqlite3ResolveExprNames().
*/
SQLITE_PRIVATE void sqlite3ExprAnalyzeAggregates(NameContext *pNC, Expr *pExpr){
  Walker w;
  memset(&w, 0, sizeof(w));
  w.xExprCallback = analyzeAggregate;
  w.xSelectCallback = analyzeAggregatesInSelect;
  w.u.pNC = pNC;
  assert( pNC->pSrcList!=0 );
  sqlite3WalkExpr(&w, pExpr);
}

................................................................................
}

/* During the search for the best function definition, this procedure
** is called to test how well the function passed as the first argument
** matches the request for a function with nArg arguments in a system
** that uses encoding enc. The value returned indicates how well the
** request is matched. A higher value indicates a better match.
**
** If nArg is -1 that means to only return a match (non-zero) if p->nArg
** is also -1.  In other words, we are searching for a function that
** takes a variable number of arguments.
**
** If nArg is -2 that means that we are searching for any function 
** regardless of the number of arguments it uses, so return a positive
** match score for any
**
** The returned value is always between 0 and 6, as follows:
**
** 0: Not a match.
** 1: UTF8/16 conversion required and function takes any number of arguments.
** 2: UTF16 byte order change required and function takes any number of args.
** 3: encoding matches and function takes any number of arguments
** 4: UTF8/16 conversion required - argument count matches exactly
** 5: UTF16 byte order conversion required - argument count matches exactly
** 6: Perfect match:  encoding and argument count match exactly.
**
** If nArg==(-2) then any function with a non-null xStep or xFunc is
** a perfect match and any function with both xStep and xFunc NULL is
** a non-match.
*/
#define FUNC_PERFECT_MATCH 6  /* The score for a perfect match */
static int matchQuality(
  FuncDef *p,     /* The function we are evaluating for match quality */
  int nArg,       /* Desired number of arguments.  (-1)==any */
  u8 enc          /* Desired text encoding */
){
  int match;

  /* nArg of -2 is a special case */
  if( nArg==(-2) ) return (p->xFunc==0 && p->xStep==0) ? 0 : FUNC_PERFECT_MATCH;

  /* Wrong number of arguments means "no match" */
  if( p->nArg!=nArg && p->nArg>=0 ) return 0;

  /* Give a better score to a function with a specific number of arguments
  ** than to function that accepts any number of arguments. */
  if( p->nArg==nArg ){
    match = 4;
  }else{
    match = 1;
  }

  /* Bonus points if the text encoding matches */
  if( enc==p->iPrefEnc ){
    match += 2;  /* Exact encoding match */
  }else if( (enc & p->iPrefEnc & 2)!=0 ){
    match += 1;  /* Both are UTF16, but with different byte orders */
  }

  return match;
}

/*
** Search a FuncDefHash for a function with the given name.  Return
** a pointer to the matching FuncDef if found, or 0 if there is no match.
*/
................................................................................
** Locate a user function given a name, a number of arguments and a flag
** indicating whether the function prefers UTF-16 over UTF-8.  Return a
** pointer to the FuncDef structure that defines that function, or return
** NULL if the function does not exist.
**
** If the createFlag argument is true, then a new (blank) FuncDef
** structure is created and liked into the "db" structure if a
** no matching function previously existed.
**
** If nArg is -2, then the first valid function found is returned.  A
** function is valid if either xFunc or xStep is non-zero.  The nArg==(-2)
** case is used to see if zName is a valid function name for some number
** of arguments.  If nArg is -2, then createFlag must be 0.

**
** If createFlag is false, then a function with the required name and
** number of arguments may be returned even if the eTextRep flag does not
** match that requested.
*/
SQLITE_PRIVATE FuncDef *sqlite3FindFunction(
  sqlite3 *db,       /* An open database */
  const char *zName, /* Name of the function.  Not null-terminated */
  int nName,         /* Number of characters in the name */
  int nArg,          /* Number of arguments.  -1 means any number */
  u8 enc,            /* Preferred text encoding */
  u8 createFlag      /* Create new entry if true and does not otherwise exist */
){
  FuncDef *p;         /* Iterator variable */
  FuncDef *pBest = 0; /* Best match found so far */
  int bestScore = 0;  /* Score of best match */
  int h;              /* Hash value */

  assert( nArg>=(-2) );
  assert( nArg>=(-1) || createFlag==0 );
  assert( enc==SQLITE_UTF8 || enc==SQLITE_UTF16LE || enc==SQLITE_UTF16BE );
  h = (sqlite3UpperToLower[(u8)zName[0]] + nName) % ArraySize(db->aFunc.a);

  /* First search for a match amongst the application-defined functions.
  */
  p = functionSearch(&db->aFunc, h, zName, nName);
  while( p ){
................................................................................
    }
  }

  /* If the createFlag parameter is true and the search did not reveal an
  ** exact match for the name, number of arguments and encoding, then add a
  ** new entry to the hash table and return it.
  */
  if( createFlag && bestScore<FUNC_PERFECT_MATCH && 
      (pBest = sqlite3DbMallocZero(db, sizeof(*pBest)+nName+1))!=0 ){
    pBest->zName = (char *)&pBest[1];
    pBest->nArg = (u16)nArg;
    pBest->iPrefEnc = enc;
    memcpy(pBest->zName, zName, nName);
    pBest->zName[nName] = 0;
    sqlite3FuncDefInsert(&db->aFunc, pBest);
................................................................................
    }
  }

  /***** If we reach this point, flattening is permitted. *****/

  /* Authorize the subquery */
  pParse->zAuthContext = pSubitem->zName;
  TESTONLY(i =) sqlite3AuthCheck(pParse, SQLITE_SELECT, 0, 0, 0);
  testcase( i==SQLITE_DENY );
  pParse->zAuthContext = zSavedAuthContext;

  /* If the sub-query is a compound SELECT statement, then (by restrictions
  ** 17 and 18 above) it must be a UNION ALL and the parent query must 
  ** be of the form:
  **
  **     SELECT <expr-list> FROM (<sub-query>) <where-clause> 
................................................................................
    }

    /* Advance to the next output block */
    pLeaf->iBlock++;
    pLeaf->key.n = 0;
    pLeaf->block.n = 0;


    nSuffix = nTerm;
    nSpace  = 1;
    nSpace += sqlite3Fts3VarintLen(nSuffix) + nSuffix;
    nSpace += sqlite3Fts3VarintLen(nDoclist) + nDoclist;
  }

  blobGrowBuffer(&pLeaf->block, pLeaf->block.n + nSpace, &rc);
................................................................................
  int eCoordType;
};

/* Possible values for eCoordType: */
#define RTREE_COORD_REAL32 0
#define RTREE_COORD_INT32  1

/*
** If SQLITE_RTREE_INT_ONLY is defined, then this virtual table will
** only deal with integer coordinates.  No floating point operations
** will be done.
*/
#ifdef SQLITE_RTREE_INT_ONLY
  typedef sqlite3_int64 RtreeDValue;       /* High accuracy coordinate */
  typedef int RtreeValue;                  /* Low accuracy coordinate */
#else
  typedef double RtreeDValue;              /* High accuracy coordinate */
  typedef float RtreeValue;                /* Low accuracy coordinate */
#endif

/*
** The minimum number of cells allowed for a node is a third of the 
** maximum. In Gutman's notation:
**
**     m = M/3
**
** If an R*-tree "Reinsert" operation is required, the same number of
................................................................................
  int iCell;                        /* Index of current cell in pNode */
  int iStrategy;                    /* Copy of idxNum search parameter */
  int nConstraint;                  /* Number of entries in aConstraint */
  RtreeConstraint *aConstraint;     /* Search constraints. */
};

union RtreeCoord {
  RtreeValue f;
  int i;
};

/*
** The argument is an RtreeCoord. Return the value stored within the RtreeCoord
** formatted as a RtreeDValue (double or int64). This macro assumes that local
** variable pRtree points to the Rtree structure associated with the
** RtreeCoord.
*/
#ifdef SQLITE_RTREE_INT_ONLY
# define DCOORD(coord) ((RtreeDValue)coord.i)
#else
# define DCOORD(coord) (                           \
    (pRtree->eCoordType==RTREE_COORD_REAL32) ?      \
      ((double)coord.f) :                           \
      ((double)coord.i)                             \
  )
#endif

/*
** A search constraint.
*/
struct RtreeConstraint {
  int iCoord;                     /* Index of constrained coordinate */
  int op;                         /* Constraining operation */
  RtreeDValue rValue;             /* Constraint value. */
  int (*xGeom)(sqlite3_rtree_geometry*, int, RtreeDValue*, int*);
  sqlite3_rtree_geometry *pGeom;  /* Constraint callback argument for a MATCH */
};

/* Possible values for RtreeConstraint.op */
#define RTREE_EQ    0x41
#define RTREE_LE    0x42
#define RTREE_LT    0x43
................................................................................
/*
** An instance of this structure must be supplied as a blob argument to
** the right-hand-side of an SQL MATCH operator used to constrain an
** r-tree query.
*/
struct RtreeMatchArg {
  u32 magic;                      /* Always RTREE_GEOMETRY_MAGIC */
  int (*xGeom)(sqlite3_rtree_geometry *, int, RtreeDValue*, int *);
  void *pContext;
  int nParam;
  RtreeDValue aParam[1];
};

/*
** When a geometry callback is created (see sqlite3_rtree_geometry_callback),
** a single instance of the following structure is allocated. It is used
** as the context for the user-function created by by s_r_g_c(). The object
** is eventually deleted by the destructor mechanism provided by
** sqlite3_create_function_v2() (which is called by s_r_g_c() to create
** the geometry callback function).
*/
struct RtreeGeomCallback {
  int (*xGeom)(sqlite3_rtree_geometry*, int, RtreeDValue*, int*);
  void *pContext;
};

#ifndef MAX
# define MAX(x,y) ((x) < (y) ? (y) : (x))
#endif
#ifndef MIN
................................................................................
static int testRtreeGeom(
  Rtree *pRtree,                  /* R-Tree object */
  RtreeConstraint *pConstraint,   /* MATCH constraint to test */
  RtreeCell *pCell,               /* Cell to test */
  int *pbRes                      /* OUT: Test result */
){
  int i;
  RtreeDValue aCoord[RTREE_MAX_DIMENSIONS*2];
  int nCoord = pRtree->nDim*2;

  assert( pConstraint->op==RTREE_MATCH );
  assert( pConstraint->pGeom );

  for(i=0; i<nCoord; i++){
    aCoord[i] = DCOORD(pCell->aCoord[i]);
................................................................................
  int ii;
  int bRes = 0;
  int rc = SQLITE_OK;

  nodeGetCell(pRtree, pCursor->pNode, pCursor->iCell, &cell);
  for(ii=0; bRes==0 && ii<pCursor->nConstraint; ii++){
    RtreeConstraint *p = &pCursor->aConstraint[ii];
    RtreeDValue cell_min = DCOORD(cell.aCoord[(p->iCoord>>1)*2]);
    RtreeDValue cell_max = DCOORD(cell.aCoord[(p->iCoord>>1)*2+1]);

    assert(p->op==RTREE_LE || p->op==RTREE_LT || p->op==RTREE_GE 
        || p->op==RTREE_GT || p->op==RTREE_EQ || p->op==RTREE_MATCH
    );

    switch( p->op ){
      case RTREE_LE: case RTREE_LT: 
................................................................................
  RtreeCell cell;
  int ii;
  *pbEof = 0;

  nodeGetCell(pRtree, pCursor->pNode, pCursor->iCell, &cell);
  for(ii=0; ii<pCursor->nConstraint; ii++){
    RtreeConstraint *p = &pCursor->aConstraint[ii];
    RtreeDValue coord = DCOORD(cell.aCoord[p->iCoord]);
    int res;
    assert(p->op==RTREE_LE || p->op==RTREE_LT || p->op==RTREE_GE 
        || p->op==RTREE_GT || p->op==RTREE_EQ || p->op==RTREE_MATCH
    );
    switch( p->op ){
      case RTREE_LE: res = (coord<=p->rValue); break;
      case RTREE_LT: res = (coord<p->rValue);  break;
................................................................................

  if( i==0 ){
    i64 iRowid = nodeGetRowid(pRtree, pCsr->pNode, pCsr->iCell);
    sqlite3_result_int64(ctx, iRowid);
  }else{
    RtreeCoord c;
    nodeGetCoord(pRtree, pCsr->pNode, pCsr->iCell, i-1, &c);
#ifndef SQLITE_RTREE_INT_ONLY
    if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
      sqlite3_result_double(ctx, c.f);
    }else
#endif
    {
      assert( pRtree->eCoordType==RTREE_COORD_INT32 );
      sqlite3_result_int(ctx, c.i);
    }
  }

  return SQLITE_OK;
}
................................................................................

  /* Check that value is actually a blob. */
  if( sqlite3_value_type(pValue)!=SQLITE_BLOB ) return SQLITE_ERROR;

  /* Check that the blob is roughly the right size. */
  nBlob = sqlite3_value_bytes(pValue);
  if( nBlob<(int)sizeof(RtreeMatchArg) 
   || ((nBlob-sizeof(RtreeMatchArg))%sizeof(RtreeDValue))!=0
  ){
    return SQLITE_ERROR;
  }

  pGeom = (sqlite3_rtree_geometry *)sqlite3_malloc(
      sizeof(sqlite3_rtree_geometry) + nBlob
  );
  if( !pGeom ) return SQLITE_NOMEM;
  memset(pGeom, 0, sizeof(sqlite3_rtree_geometry));
  p = (RtreeMatchArg *)&pGeom[1];

  memcpy(p, sqlite3_value_blob(pValue), nBlob);
  if( p->magic!=RTREE_GEOMETRY_MAGIC 
   || nBlob!=(int)(sizeof(RtreeMatchArg) + (p->nParam-1)*sizeof(RtreeDValue))
  ){
    sqlite3_free(pGeom);
    return SQLITE_ERROR;
  }

  pGeom->pContext = p->pContext;
  pGeom->nParam = p->nParam;
................................................................................
            ** an sqlite3_rtree_geometry_callback() SQL user function.
            */
            rc = deserializeGeometry(argv[ii], p);
            if( rc!=SQLITE_OK ){
              break;
            }
          }else{
#ifdef SQLITE_RTREE_INT_ONLY
            p->rValue = sqlite3_value_int64(argv[ii]);
#else
            p->rValue = sqlite3_value_double(argv[ii]);
#endif
          }
        }
      }
    }
  
    if( rc==SQLITE_OK ){
      pCsr->pNode = 0;
................................................................................
  pIdxInfo->estimatedCost = (2000000.0 / (double)(iIdx + 1));
  return rc;
}

/*
** Return the N-dimensional volumn of the cell stored in *p.
*/
static RtreeDValue cellArea(Rtree *pRtree, RtreeCell *p){
  RtreeDValue area = (RtreeDValue)1;
  int ii;
  for(ii=0; ii<(pRtree->nDim*2); ii+=2){
    area = (area * (DCOORD(p->aCoord[ii+1]) - DCOORD(p->aCoord[ii])));
  }
  return area;
}

/*
** Return the margin length of cell p. The margin length is the sum
** of the objects size in each dimension.
*/
static RtreeDValue cellMargin(Rtree *pRtree, RtreeCell *p){
  RtreeDValue margin = (RtreeDValue)0;
  int ii;
  for(ii=0; ii<(pRtree->nDim*2); ii+=2){
    margin += (DCOORD(p->aCoord[ii+1]) - DCOORD(p->aCoord[ii]));
  }
  return margin;
}

/*
** Store the union of cells p1 and p2 in p1.
*/
................................................................................
  }
  return 1;
}

/*
** Return the amount cell p would grow by if it were unioned with pCell.
*/
static RtreeDValue cellGrowth(Rtree *pRtree, RtreeCell *p, RtreeCell *pCell){
  RtreeDValue area;
  RtreeCell cell;
  memcpy(&cell, p, sizeof(RtreeCell));
  area = cellArea(pRtree, &cell);
  cellUnion(pRtree, &cell, pCell);
  return (cellArea(pRtree, &cell)-area);
}

#if VARIANT_RSTARTREE_CHOOSESUBTREE || VARIANT_RSTARTREE_SPLIT
static RtreeDValue cellOverlap(
  Rtree *pRtree, 
  RtreeCell *p, 
  RtreeCell *aCell, 
  int nCell, 
  int iExclude
){
  int ii;
  RtreeDValue overlap = 0.0;
  for(ii=0; ii<nCell; ii++){
#if VARIANT_RSTARTREE_CHOOSESUBTREE
    if( ii!=iExclude )
#else
    assert( iExclude==-1 );
    UNUSED_PARAMETER(iExclude);
#endif
    {
      int jj;
      RtreeDValue o = (RtreeDValue)1;
      for(jj=0; jj<(pRtree->nDim*2); jj+=2){
        RtreeDValue x1, x2;


        x1 = MAX(DCOORD(p->aCoord[jj]), DCOORD(aCell[ii].aCoord[jj]));
        x2 = MIN(DCOORD(p->aCoord[jj+1]), DCOORD(aCell[ii].aCoord[jj+1]));

        if( x2<x1 ){
          o = 0.0;
          break;
        }else{
          o = o * (x2-x1);
        }
      }
      overlap += o;
    }
  }
  return overlap;
}
#endif

#if VARIANT_RSTARTREE_CHOOSESUBTREE
static RtreeDValue cellOverlapEnlargement(
  Rtree *pRtree, 
  RtreeCell *p, 
  RtreeCell *pInsert, 
  RtreeCell *aCell, 
  int nCell, 
  int iExclude
){
  RtreeDValue before, after;

  before = cellOverlap(pRtree, p, aCell, nCell, iExclude);
  cellUnion(pRtree, p, pInsert);
  after = cellOverlap(pRtree, p, aCell, nCell, iExclude);
  return (after-before);
}
#endif


/*
** This function implements the ChooseLeaf algorithm from Gutman[84].
** ChooseSubTree in r*tree terminology.
................................................................................
  RtreeNode *pNode;
  rc = nodeAcquire(pRtree, 1, 0, &pNode);

  for(ii=0; rc==SQLITE_OK && ii<(pRtree->iDepth-iHeight); ii++){
    int iCell;
    sqlite3_int64 iBest = 0;

    RtreeDValue fMinGrowth = 0.0;
    RtreeDValue fMinArea = 0.0;
#if VARIANT_RSTARTREE_CHOOSESUBTREE
    RtreeDValue fMinOverlap = 0.0;
    RtreeDValue overlap;
#endif

    int nCell = NCELL(pNode);
    RtreeCell cell;
    RtreeNode *pChild;

    RtreeCell *aCell = 0;
................................................................................

    /* Select the child node which will be enlarged the least if pCell
    ** is inserted into it. Resolve ties by choosing the entry with
    ** the smallest area.
    */
    for(iCell=0; iCell<nCell; iCell++){
      int bBest = 0;
      RtreeDValue growth;
      RtreeDValue area;
      nodeGetCell(pRtree, pNode, iCell, &cell);
      growth = cellGrowth(pRtree, &cell, pCell);
      area = cellArea(pRtree, &cell);

#if VARIANT_RSTARTREE_CHOOSESUBTREE
      if( ii==(pRtree->iDepth-1) ){
        overlap = cellOverlapEnlargement(pRtree,&cell,pCell,aCell,nCell,iCell);
................................................................................
  int nCell, 
  int *piLeftSeed, 
  int *piRightSeed
){
  int i;
  int iLeftSeed = 0;
  int iRightSeed = 1;
  RtreeDValue maxNormalInnerWidth = (RtreeDValue)0;

  /* Pick two "seed" cells from the array of cells. The algorithm used
  ** here is the LinearPickSeeds algorithm from Gutman[1984]. The 
  ** indices of the two seed cells in the array are stored in local
  ** variables iLeftSeek and iRightSeed.
  */
  for(i=0; i<pRtree->nDim; i++){
    RtreeDValue x1 = DCOORD(aCell[0].aCoord[i*2]);
    RtreeDValue x2 = DCOORD(aCell[0].aCoord[i*2+1]);
    RtreeDValue x3 = x1;
    RtreeDValue x4 = x2;
    int jj;

    int iCellLeft = 0;
    int iCellRight = 0;

    for(jj=1; jj<nCell; jj++){
      RtreeDValue left = DCOORD(aCell[jj].aCoord[i*2]);
      RtreeDValue right = DCOORD(aCell[jj].aCoord[i*2+1]);

      if( left<x1 ) x1 = left;
      if( right>x4 ) x4 = right;
      if( left>x3 ){
        x3 = left;
        iCellRight = jj;
      }
................................................................................
      if( right<x2 ){
        x2 = right;
        iCellLeft = jj;
      }
    }

    if( x4!=x1 ){
      RtreeDValue normalwidth = (x3 - x2) / (x4 - x1);
      if( normalwidth>maxNormalInnerWidth ){
        iLeftSeed = iCellLeft;
        iRightSeed = iCellRight;
      }
    }
  }

................................................................................
  RtreeCell *pLeftBox, 
  RtreeCell *pRightBox,
  int *aiUsed
){
  #define FABS(a) ((a)<0.0?-1.0*(a):(a))

  int iSelect = -1;
  RtreeDValue fDiff;
  int ii;
  for(ii=0; ii<nCell; ii++){
    if( aiUsed[ii]==0 ){
      RtreeDValue left = cellGrowth(pRtree, pLeftBox, &aCell[ii]);
      RtreeDValue right = cellGrowth(pRtree, pLeftBox, &aCell[ii]);
      RtreeDValue diff = FABS(right-left);
      if( iSelect<0 || diff>fDiff ){
        fDiff = diff;
        iSelect = ii;
      }
    }
  }
  aiUsed[iSelect] = 1;
................................................................................
  int *piRightSeed
){
  int ii;
  int jj;

  int iLeftSeed = 0;
  int iRightSeed = 1;
  RtreeDValue fWaste = 0.0;

  for(ii=0; ii<nCell; ii++){
    for(jj=ii+1; jj<nCell; jj++){
      RtreeDValue right = cellArea(pRtree, &aCell[jj]);
      RtreeDValue growth = cellGrowth(pRtree, &aCell[ii], &aCell[jj]);
      RtreeDValue waste = growth - right;

      if( waste>fWaste ){
        iLeftSeed = ii;
        iRightSeed = jj;
        fWaste = waste;
      }
    }
................................................................................
**
** The aSpare array is used as temporary working space by the
** sorting algorithm.
*/
static void SortByDistance(
  int *aIdx, 
  int nIdx, 
  RtreeDValue *aDistance, 
  int *aSpare
){
  if( nIdx>1 ){
    int iLeft = 0;
    int iRight = 0;

    int nLeft = nIdx/2;
................................................................................
      if( iLeft==nLeft ){
        aIdx[iLeft+iRight] = aRight[iRight];
        iRight++;
      }else if( iRight==nRight ){
        aIdx[iLeft+iRight] = aLeft[iLeft];
        iLeft++;
      }else{
        RtreeDValue fLeft = aDistance[aLeft[iLeft]];
        RtreeDValue fRight = aDistance[aRight[iRight]];
        if( fLeft<fRight ){
          aIdx[iLeft+iRight] = aLeft[iLeft];
          iLeft++;
        }else{
          aIdx[iLeft+iRight] = aRight[iRight];
          iRight++;
        }
................................................................................
    }

#if 0
    /* Check that the sort worked */
    {
      int jj;
      for(jj=1; jj<nIdx; jj++){
        RtreeDValue left = aDistance[aIdx[jj-1]];
        RtreeDValue right = aDistance[aIdx[jj]];
        assert( left<=right );
      }
    }
#endif
  }
}

................................................................................

    SortByDimension(pRtree, aLeft, nLeft, iDim, aCell, aSpare);
    SortByDimension(pRtree, aRight, nRight, iDim, aCell, aSpare);

    memcpy(aSpare, aLeft, sizeof(int)*nLeft);
    aLeft = aSpare;
    while( iLeft<nLeft || iRight<nRight ){
      RtreeDValue xleft1 = DCOORD(aCell[aLeft[iLeft]].aCoord[iDim*2]);
      RtreeDValue xleft2 = DCOORD(aCell[aLeft[iLeft]].aCoord[iDim*2+1]);
      RtreeDValue xright1 = DCOORD(aCell[aRight[iRight]].aCoord[iDim*2]);
      RtreeDValue xright2 = DCOORD(aCell[aRight[iRight]].aCoord[iDim*2+1]);
      if( (iLeft!=nLeft) && ((iRight==nRight)
       || (xleft1<xright1)
       || (xleft1==xright1 && xleft2<xright2)
      )){
        aIdx[iLeft+iRight] = aLeft[iLeft];
        iLeft++;
      }else{
................................................................................
    }

#if 0
    /* Check that the sort worked */
    {
      int jj;
      for(jj=1; jj<nIdx; jj++){
        RtreeDValue xleft1 = aCell[aIdx[jj-1]].aCoord[iDim*2];
        RtreeDValue xleft2 = aCell[aIdx[jj-1]].aCoord[iDim*2+1];
        RtreeDValue xright1 = aCell[aIdx[jj]].aCoord[iDim*2];
        RtreeDValue xright2 = aCell[aIdx[jj]].aCoord[iDim*2+1];
        assert( xleft1<=xright1 && (xleft1<xright1 || xleft2<=xright2) );
      }
    }
#endif
  }
}

................................................................................
){
  int **aaSorted;
  int *aSpare;
  int ii;

  int iBestDim = 0;
  int iBestSplit = 0;
  RtreeDValue fBestMargin = 0.0;

  int nByte = (pRtree->nDim+1)*(sizeof(int*)+nCell*sizeof(int));

  aaSorted = (int **)sqlite3_malloc(nByte);
  if( !aaSorted ){
    return SQLITE_NOMEM;
  }
................................................................................
    for(jj=0; jj<nCell; jj++){
      aaSorted[ii][jj] = jj;
    }
    SortByDimension(pRtree, aaSorted[ii], nCell, ii, aCell, aSpare);
  }

  for(ii=0; ii<pRtree->nDim; ii++){
    RtreeDValue margin = 0.0;
    RtreeDValue fBestOverlap = 0.0;
    RtreeDValue fBestArea = 0.0;
    int iBestLeft = 0;
    int nLeft;

    for(
      nLeft=RTREE_MINCELLS(pRtree); 
      nLeft<=(nCell-RTREE_MINCELLS(pRtree)); 
      nLeft++
    ){
      RtreeCell left;
      RtreeCell right;
      int kk;
      RtreeDValue overlap;
      RtreeDValue area;

      memcpy(&left, &aCell[aaSorted[ii][0]], sizeof(RtreeCell));
      memcpy(&right, &aCell[aaSorted[ii][nCell-1]], sizeof(RtreeCell));
      for(kk=1; kk<(nCell-1); kk++){
        if( kk<nLeft ){
          cellUnion(pRtree, &left, &aCell[aaSorted[ii][kk]]);
        }else{
................................................................................
  nodeInsertCell(pRtree, pRight, &aCell[iRightSeed]);
  aiUsed[iLeftSeed] = 1;
  aiUsed[iRightSeed] = 1;

  for(i=nCell-2; i>0; i--){
    RtreeCell *pNext;
    pNext = PickNext(pRtree, aCell, nCell, pBboxLeft, pBboxRight, aiUsed);
    RtreeDValue diff =  
      cellGrowth(pRtree, pBboxLeft, pNext) - 
      cellGrowth(pRtree, pBboxRight, pNext)
    ;
    if( (RTREE_MINCELLS(pRtree)-NCELL(pRight)==i)
     || (diff>0.0 && (RTREE_MINCELLS(pRtree)-NCELL(pLeft)!=i))
    ){
      nodeInsertCell(pRtree, pRight, pNext);
................................................................................
  RtreeNode *pNode, 
  RtreeCell *pCell, 
  int iHeight
){
  int *aOrder;
  int *aSpare;
  RtreeCell *aCell;
  RtreeDValue *aDistance;
  int nCell;
  RtreeDValue aCenterCoord[RTREE_MAX_DIMENSIONS];
  int iDim;
  int ii;
  int rc = SQLITE_OK;
  int n;

  memset(aCenterCoord, 0, sizeof(RtreeDValue)*RTREE_MAX_DIMENSIONS);

  nCell = NCELL(pNode)+1;
  n = (nCell+1)&(~1);

  /* Allocate the buffers used by this operation. The allocation is
  ** relinquished before this function returns.
  */
  aCell = (RtreeCell *)sqlite3_malloc(n * (
    sizeof(RtreeCell)     +         /* aCell array */
    sizeof(int)           +         /* aOrder array */
    sizeof(int)           +         /* aSpare array */
    sizeof(RtreeDValue)             /* aDistance array */
  ));
  if( !aCell ){
    return SQLITE_NOMEM;
  }
  aOrder    = (int *)&aCell[n];
  aSpare    = (int *)&aOrder[n];
  aDistance = (RtreeDValue *)&aSpare[n];

  for(ii=0; ii<nCell; ii++){
    if( ii==(nCell-1) ){
      memcpy(&aCell[ii], pCell, sizeof(RtreeCell));
    }else{
      nodeGetCell(pRtree, pNode, ii, &aCell[ii]);
    }
    aOrder[ii] = ii;
    for(iDim=0; iDim<pRtree->nDim; iDim++){
      aCenterCoord[iDim] += DCOORD(aCell[ii].aCoord[iDim*2]);
      aCenterCoord[iDim] += DCOORD(aCell[ii].aCoord[iDim*2+1]);
    }
  }
  for(iDim=0; iDim<pRtree->nDim; iDim++){
    aCenterCoord[iDim] = (aCenterCoord[iDim]/(nCell*(RtreeDValue)2));
  }

  for(ii=0; ii<nCell; ii++){
    aDistance[ii] = 0.0;
    for(iDim=0; iDim<pRtree->nDim; iDim++){
      RtreeDValue coord = (DCOORD(aCell[ii].aCoord[iDim*2+1]) - 
                               DCOORD(aCell[ii].aCoord[iDim*2]));
      aDistance[ii] += (coord-aCenterCoord[iDim])*(coord-aCenterCoord[iDim]);
    }
  }

  SortByDistance(aOrder, nCell, aDistance, aSpare);
  nodeZero(pRtree, pNode);

................................................................................
  ** conflict-handling mode specified by the user.
  */
  if( nData>1 ){
    int ii;

    /* Populate the cell.aCoord[] array. The first coordinate is azData[3]. */
    assert( nData==(pRtree->nDim*2 + 3) );
#ifndef SQLITE_RTREE_INT_ONLY
    if( pRtree->eCoordType==RTREE_COORD_REAL32 ){
      for(ii=0; ii<(pRtree->nDim*2); ii+=2){
        cell.aCoord[ii].f = (RtreeValue)sqlite3_value_double(azData[ii+3]);
        cell.aCoord[ii+1].f = (RtreeValue)sqlite3_value_double(azData[ii+4]);
        if( cell.aCoord[ii].f>cell.aCoord[ii+1].f ){
          rc = SQLITE_CONSTRAINT;
          goto constraint;
        }
      }
    }else
#endif
    {
      for(ii=0; ii<(pRtree->nDim*2); ii+=2){
        cell.aCoord[ii].i = sqlite3_value_int(azData[ii+3]);
        cell.aCoord[ii+1].i = sqlite3_value_int(azData[ii+4]);
        if( cell.aCoord[ii].i>cell.aCoord[ii+1].i ){
          rc = SQLITE_CONSTRAINT;
          goto constraint;
        }
................................................................................
    RtreeCell cell;
    int jj;

    nodeGetCell(&tree, &node, ii, &cell);
    sqlite3_snprintf(512-nCell,&zCell[nCell],"%lld", cell.iRowid);
    nCell = (int)strlen(zCell);
    for(jj=0; jj<tree.nDim*2; jj++){
#ifndef SQLITE_RTREE_INT_ONLY
      sqlite3_snprintf(512-nCell,&zCell[nCell], " %f",
                       (double)cell.aCoord[jj].f);
#else
      sqlite3_snprintf(512-nCell,&zCell[nCell], " %d",
                       cell.aCoord[jj].i);
#endif
      nCell = (int)strlen(zCell);
    }

    if( zText ){
      char *zTextNew = sqlite3_mprintf("%s {%s}", zText, zCell);
      sqlite3_free(zText);
      zText = zTextNew;
................................................................................
  int rc;

  rc = sqlite3_create_function(db, "rtreenode", 2, utf8, 0, rtreenode, 0, 0);
  if( rc==SQLITE_OK ){
    rc = sqlite3_create_function(db, "rtreedepth", 1, utf8, 0,rtreedepth, 0, 0);
  }
  if( rc==SQLITE_OK ){
#ifdef SQLITE_RTREE_INT_ONLY
    void *c = (void *)RTREE_COORD_INT32;
#else
    void *c = (void *)RTREE_COORD_REAL32;
#endif
    rc = sqlite3_create_module_v2(db, "rtree", &rtreeModule, c, 0);
  }
  if( rc==SQLITE_OK ){
    void *c = (void *)RTREE_COORD_INT32;
    rc = sqlite3_create_module_v2(db, "rtree_i32", &rtreeModule, c, 0);
  }

................................................................................
** table MATCH operators.
*/
static void geomCallback(sqlite3_context *ctx, int nArg, sqlite3_value **aArg){
  RtreeGeomCallback *pGeomCtx = (RtreeGeomCallback *)sqlite3_user_data(ctx);
  RtreeMatchArg *pBlob;
  int nBlob;

  nBlob = sizeof(RtreeMatchArg) + (nArg-1)*sizeof(RtreeDValue);
  pBlob = (RtreeMatchArg *)sqlite3_malloc(nBlob);
  if( !pBlob ){
    sqlite3_result_error_nomem(ctx);
  }else{
    int i;
    pBlob->magic = RTREE_GEOMETRY_MAGIC;
    pBlob->xGeom = pGeomCtx->xGeom;
    pBlob->pContext = pGeomCtx->pContext;
    pBlob->nParam = nArg;
    for(i=0; i<nArg; i++){
#ifdef SQLITE_RTREE_INT_ONLY
      pBlob->aParam[i] = sqlite3_value_int64(aArg[i]);
#else
      pBlob->aParam[i] = sqlite3_value_double(aArg[i]);
#endif
    }
    sqlite3_result_blob(ctx, pBlob, nBlob, doSqlite3Free);
  }
}

/*
** Register a new geometry function for use with the r-tree MATCH operator.
*/
SQLITE_API int sqlite3_rtree_geometry_callback(
  sqlite3 *db,
  const char *zGeom,
  int (*xGeom)(sqlite3_rtree_geometry *, int, RtreeDValue *, int *),
  void *pContext
){
  RtreeGeomCallback *pGeomCtx;      /* Context object for new user-function */

  /* Allocate and populate the context object. */
  pGeomCtx = (RtreeGeomCallback *)sqlite3_malloc(sizeof(RtreeGeomCallback));
  if( !pGeomCtx ) return SQLITE_NOMEM;

**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.7.12"
#define SQLITE_VERSION_NUMBER 3007012
#define SQLITE_SOURCE_ID      "2012-03-31 19:12:23 af602d87736b52802a4e760ffeeaa28112b99d9a"

/*
** 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
................................................................................
** connection is opened. If it is globally disabled, filenames are
** only interpreted as URIs if the SQLITE_OPEN_URI flag is set when the
** database connection is opened. By default, URI handling is globally
** disabled. The default value may be changed by compiling with the
** [SQLITE_USE_URI] symbol defined.
**
** [[SQLITE_CONFIG_PCACHE]] [[SQLITE_CONFIG_GETPCACHE]]
** <dt>SQLITE_CONFIG_PCACHE and SQLITE_CONFNIG_GETPCACHE
** <dd> These options are obsolete and should not be used by new code.
** They are retained for backwards compatibility but are now no-ops.
** </dl>
*/
#define SQLITE_CONFIG_SINGLETHREAD  1  /* nil */
#define SQLITE_CONFIG_MULTITHREAD   2  /* nil */
#define SQLITE_CONFIG_SERIALIZED    3  /* nil */
................................................................................
** R-Tree geometry query as follows:
**
**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...)
*/
SQLITE_API int sqlite3_rtree_geometry_callback(
  sqlite3 *db,
  const char *zGeom,



  int (*xGeom)(sqlite3_rtree_geometry *, int nCoord, double *aCoord, int *pRes),

  void *pContext
);


/*
** A pointer to a structure of the following type is passed as the first
** argument to callbacks registered using rtree_geometry_callback().

**
** See also: [sqlite3_libversion()],
** [sqlite3_libversion_number()], [sqlite3_sourceid()],
** [sqlite_version()] and [sqlite_source_id()].
*/
#define SQLITE_VERSION        "3.7.12"
#define SQLITE_VERSION_NUMBER 3007012
#define SQLITE_SOURCE_ID      "2012-04-17 09:09:33 8e2363ad76446e863d03ead91fd621e59d5cb495"

/*
** 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
................................................................................
** connection is opened. If it is globally disabled, filenames are
** only interpreted as URIs if the SQLITE_OPEN_URI flag is set when the
** database connection is opened. By default, URI handling is globally
** disabled. The default value may be changed by compiling with the
** [SQLITE_USE_URI] symbol defined.
**
** [[SQLITE_CONFIG_PCACHE]] [[SQLITE_CONFIG_GETPCACHE]]
** <dt>SQLITE_CONFIG_PCACHE and SQLITE_CONFIG_GETPCACHE
** <dd> These options are obsolete and should not be used by new code.
** They are retained for backwards compatibility but are now no-ops.
** </dl>
*/
#define SQLITE_CONFIG_SINGLETHREAD  1  /* nil */
#define SQLITE_CONFIG_MULTITHREAD   2  /* nil */
#define SQLITE_CONFIG_SERIALIZED    3  /* nil */
................................................................................
** R-Tree geometry query as follows:
**
**   SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...)
*/
SQLITE_API int sqlite3_rtree_geometry_callback(
  sqlite3 *db,
  const char *zGeom,
#ifdef SQLITE_RTREE_INT_ONLY
  int (*xGeom)(sqlite3_rtree_geometry*, int n, sqlite3_int64 *a, int *pRes),
#else
  int (*xGeom)(sqlite3_rtree_geometry*, int n, double *a, int *pRes),
#endif
  void *pContext
);


/*
** A pointer to a structure of the following type is passed as the first
** argument to callbacks registered using rtree_geometry_callback().

  const char *zName;
  zName = find_option("name", 0, 1);
  db_find_and_open_repository(0, 0);
  if( g.argc!=4 ){
    usage("VERSION OUTPUTFILE");
  }
  rid = name_to_typed_rid(g.argv[2], "ci");





  if( zName==0 ){
    zName = db_text("default-name",
       "SELECT replace(%Q,' ','_') "
          " || strftime('_%%Y-%%m-%%d_%%H%%M%%S_', event.mtime) "
          " || substr(blob.uuid, 1, 10)"
       "  FROM event, blob"
       " WHERE event.objid=%d"
................................................................................
    for(nName=strlen(zName)-1; nName>5; nName--){
      if( zName[nName]=='.' ){
        zName[nName] = 0;
        break;
      }
    }
  }
  rid = name_to_rid(nRid?zRid:zName);
  if( rid==0 ){
    @ Not found
    return;
  }
  if( nRid==0 && nName>10 ) zName[10] = 0;
  tarball_of_checkin(rid, &tarball, zName);
  free( zName );
  free( zRid );
  cgi_set_content(&tarball);
  cgi_set_content_type("application/x-compressed");
}

  const char *zName;
  zName = find_option("name", 0, 1);
  db_find_and_open_repository(0, 0);
  if( g.argc!=4 ){
    usage("VERSION OUTPUTFILE");
  }
  rid = name_to_typed_rid(g.argv[2], "ci");
  if( rid==0 ){
    fossil_fatal("Checkin not found: %s", g.argv[2]);
    return;
  }

  if( zName==0 ){
    zName = db_text("default-name",
       "SELECT replace(%Q,' ','_') "
          " || strftime('_%%Y-%%m-%%d_%%H%%M%%S_', event.mtime) "
          " || substr(blob.uuid, 1, 10)"
       "  FROM event, blob"
       " WHERE event.objid=%d"
................................................................................
    for(nName=strlen(zName)-1; nName>5; nName--){
      if( zName[nName]=='.' ){
        zName[nName] = 0;
        break;
      }
    }
  }
  rid = name_to_typed_rid(nRid?zRid:zName, "ci");
  if( rid==0 ){
    @ Not found
    return;
  }
  if( nRid==0 && nName>10 ) zName[10] = 0;
  tarball_of_checkin(rid, &tarball, zName);
  free( zName );
  free( zRid );
  cgi_set_content(&tarball);
  cgi_set_content_type("application/x-compressed");
}

  verboseFlag = find_option("verbose","v",0)!=0;
  debugFlag = find_option("debug",0,0)!=0;
  db_must_be_within_tree();
  vid = db_lget_int("checkout", 0);
  if( vid==0 ){
    fossil_fatal("cannot find current version");
  }
  if( !nochangeFlag && db_exists("SELECT 1 FROM vmerge") ){
    fossil_fatal("cannot update an uncommitted merge");
  }
  if( !nochangeFlag && !internalUpdate ) autosync(AUTOSYNC_PULL);
  
  /* Create any empty directories now, as well as after the update, so changes in settings are reflected now */

  ensure_empty_dirs_created();

  if( internalUpdate ){
    tid = internalUpdate;
  }else if( g.argc>=3 ){
    if( fossil_strcmp(g.argv[2], "current")==0 ){
      /* If VERSION is "current", then use the same algorithm to find the
      ** target as if VERSION were omitted. */
................................................................................
  db_finalize(&mtimeXfer);
  fossil_print("--------------\n");
  show_common_info(tid, "updated-to:", 1, 0);

  /* Report on conflicts
  */
  if( !nochangeFlag ){
















    if( nConflict ){
      if( internalUpdate ){
        internalConflictCnt = nConflict;
        nConflict = 0;
      }else{
        fossil_warning("WARNING: %d merge conflicts", nConflict);
      }
    }
    if( nOverwrite ){
      fossil_warning("WARNING: %d unmanaged files were overwritten",
                     nOverwrite);
    }



  }
  
  /*
  ** Clean up the mid and pid VFILE entries.  Then commit the changes.
  */
  if( nochangeFlag ){
    db_end_transaction(1);  /* With --nochange, rollback changes */

  verboseFlag = find_option("verbose","v",0)!=0;
  debugFlag = find_option("debug",0,0)!=0;
  db_must_be_within_tree();
  vid = db_lget_int("checkout", 0);
  if( vid==0 ){
    fossil_fatal("cannot find current version");
  }



  if( !nochangeFlag && !internalUpdate ) autosync(AUTOSYNC_PULL);
  
  /* Create any empty directories now, as well as after the update,
  ** so changes in settings are reflected now */
  if( !nochangeFlag ) ensure_empty_dirs_created();

  if( internalUpdate ){
    tid = internalUpdate;
  }else if( g.argc>=3 ){
    if( fossil_strcmp(g.argv[2], "current")==0 ){
      /* If VERSION is "current", then use the same algorithm to find the
      ** target as if VERSION were omitted. */
................................................................................
  db_finalize(&mtimeXfer);
  fossil_print("--------------\n");
  show_common_info(tid, "updated-to:", 1, 0);

  /* Report on conflicts
  */
  if( !nochangeFlag ){
    Stmt q;
    int nMerge = 0;
    db_prepare(&q, "SELECT uuid, id FROM vmerge JOIN blob ON merge=rid"
                   " WHERE id<=0");
    while( db_step(&q)==SQLITE_ROW ){
      const char *zLabel = "merge";
      switch( db_column_int(&q, 1) ){
        case -1:  zLabel = "cherrypick merge"; break;
        case -2:  zLabel = "backout merge";    break;
      }
      fossil_warning("uncommitted %s against %S.",
                     zLabel, db_column_text(&q, 0));
      nMerge++;
    }
    db_finalize(&q);
    
    if( nConflict ){
      if( internalUpdate ){
        internalConflictCnt = nConflict;
        nConflict = 0;
      }else{
        fossil_warning("WARNING: %d merge conflicts", nConflict);
      }
    }
    if( nOverwrite ){
      fossil_warning("WARNING: %d unmanaged files were overwritten",
                     nOverwrite);
    }
    if( nMerge ){
      fossil_warning("WARNING: %d uncommitted prior merges", nMerge);
    }
  }
  
  /*
  ** Clean up the mid and pid VFILE entries.  Then commit the changes.
  */
  if( nochangeFlag ){
    db_end_transaction(1);  /* With --nochange, rollback changes */

ZLIBDIR = $(SRCDIR)/../zlib-1.2.6

#### The directories where the OpenSSL include and library files are located.
#    The recommended usage here is to use the Sysinternals junction tool
#    to create a hard link between an "openssl-1.x" sub-directory of the
#    Fossil source code directory and the target OpenSSL source directory.
#
OPENSSLINCDIR = $(SRCDIR)/../openssl-1.0.0g/include
OPENSSLLIBDIR = $(SRCDIR)/../openssl-1.0.0g

#### Either the directory where the Tcl library is installed or the Tcl
#    source code directory resides (depending on the value of the macro
#    FOSSIL_TCL_SOURCE).  If this points to the Tcl install directory,
#    this directory must have "include" and "lib" sub-directories.  If
#    this points to the Tcl source code directory, this directory must
#    have "generic" and "win" sub-directories.  The recommended usage

ZLIBDIR = $(SRCDIR)/../zlib-1.2.6

#### The directories where the OpenSSL include and library files are located.
#    The recommended usage here is to use the Sysinternals junction tool
#    to create a hard link between an "openssl-1.x" sub-directory of the
#    Fossil source code directory and the target OpenSSL source directory.
#
OPENSSLINCDIR = $(SRCDIR)/../openssl-1.0.1a/include
OPENSSLLIBDIR = $(SRCDIR)/../openssl-1.0.1a

#### Either the directory where the Tcl library is installed or the Tcl
#    source code directory resides (depending on the value of the macro
#    FOSSIL_TCL_SOURCE).  If this points to the Tcl install directory,
#    this directory must have "include" and "lib" sub-directories.  If
#    this points to the Tcl source code directory, this directory must
#    have "generic" and "win" sub-directories.  The recommended usage

ZLIBDIR = $(SRCDIR)/../zlib-1.2.6

#### The directories where the OpenSSL include and library files are located.
#    The recommended usage here is to use the Sysinternals junction tool
#    to create a hard link between an "openssl-1.x" sub-directory of the
#    Fossil source code directory and the target OpenSSL source directory.
#
OPENSSLINCDIR = $(SRCDIR)/../openssl-1.0.0g/include
OPENSSLLIBDIR = $(SRCDIR)/../openssl-1.0.0g

#### Either the directory where the Tcl library is installed or the Tcl
#    source code directory resides (depending on the value of the macro
#    FOSSIL_TCL_SOURCE).  If this points to the Tcl install directory,
#    this directory must have "include" and "lib" sub-directories.  If
#    this points to the Tcl source code directory, this directory must
#    have "generic" and "win" sub-directories.  The recommended usage

ZLIBDIR = $(SRCDIR)/../zlib-1.2.6

#### The directories where the OpenSSL include and library files are located.
#    The recommended usage here is to use the Sysinternals junction tool
#    to create a hard link between an "openssl-1.x" sub-directory of the
#    Fossil source code directory and the target OpenSSL source directory.
#
OPENSSLINCDIR = $(SRCDIR)/../openssl-1.0.1a/include
OPENSSLLIBDIR = $(SRCDIR)/../openssl-1.0.1a

#### Either the directory where the Tcl library is installed or the Tcl
#    source code directory resides (depending on the value of the macro
#    FOSSIL_TCL_SOURCE).  If this points to the Tcl install directory,
#    this directory must have "include" and "lib" sub-directories.  If
#    this points to the Tcl source code directory, this directory must
#    have "generic" and "win" sub-directories.  The recommended usage