include android func/collators in sqlite3 command line tool on device

is there any reason why the sqlite3 command line tool on device
should not have android functions and collators

Change-Id: I86fc12c9c74b49a20c5647abc88c1bffd84591ee
diff --git a/dist/Android.mk b/dist/Android.mk
index 016968d..d39b737 100644
--- a/dist/Android.mk
+++ b/dist/Android.mk
@@ -6,6 +6,8 @@
 
 LOCAL_PATH:= $(call my-dir)
 
+common_sqlite_flags := -DHAVE_USLEEP=1 -DSQLITE_DEFAULT_JOURNAL_SIZE_LIMIT=1048576 -DSQLITE_THREADSAFE=1 -DNDEBUG=1 -DSQLITE_ENABLE_MEMORY_MANAGEMENT=1 -DSQLITE_DEFAULT_AUTOVACUUM=1 -DSQLITE_TEMP_STORE=3 -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_BACKWARDS
+
 common_src_files := sqlite3.c
 
 # the device library
@@ -21,7 +23,7 @@
 #   SQLITE_TEMP_STORE=3 causes all TEMP files to go into RAM. and thats the behavior we want
 #   SQLITE_ENABLE_FTS3   enables usage of FTS3 - NOT FTS1 or 2.
 #   SQLITE_DEFAULT_AUTOVACUUM=1  causes the databases to be subject to auto-vacuum
-LOCAL_CFLAGS += -DHAVE_USLEEP=1 -DSQLITE_DEFAULT_JOURNAL_SIZE_LIMIT=1048576 -DSQLITE_THREADSAFE=1 -DNDEBUG=1 -DSQLITE_ENABLE_MEMORY_MANAGEMENT=1 -DSQLITE_DEFAULT_AUTOVACUUM=1 -DSQLITE_TEMP_STORE=3 -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_BACKWARDS
+LOCAL_CFLAGS += $(common_sqlite_flags)
 
 ifneq ($(TARGET_SIMULATOR),true)
 LOCAL_SHARED_LIBRARIES := libdl
@@ -56,16 +58,18 @@
 
 LOCAL_SRC_FILES := shell.c
 
-LOCAL_SHARED_LIBRARIES := libsqlite
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/../android $(call include-path-for, system-core)/cutils
 
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/../android
-
+LOCAL_SHARED_LIBRARIES := libsqlite \
+            libicuuc \
+            libicui18n \
+            libutils
 
 ifneq ($(TARGET_ARCH),arm)
 LOCAL_LDLIBS += -lpthread -ldl
 endif
 
-LOCAL_CFLAGS += -DHAVE_USLEEP=1 -DTHREADSAFE=1 -DNDEBUG=1
+LOCAL_CFLAGS += $(common_sqlite_flags)
 
 LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
 
@@ -88,9 +92,7 @@
 
 LOCAL_SRC_FILES := $(common_src_files) shell.c
 
-LOCAL_CFLAGS += -DHAVE_USLEEP=1 -DSQLITE_DEFAULT_JOURNAL_SIZE_LIMIT=1048576 -DSQLITE_THREADSAFE=1 -DNDEBUG=1 -DSQLITE_ENABLE_MEMORY_MANAGEMENT=1 -DNO_ANDROID_FUNCS=1 -DSQLITE_TEMP_STORE=3 -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_BACKWARDS
-
-LOCAL_C_INCLUDES := $(LOCAL_PATH)/../android
+LOCAL_CFLAGS += $(common_sqlite_flags) -DNO_ANDROID_FUNCS=1
 
 # sqlite3MemsysAlarm uses LOG()
 LOCAL_STATIC_LIBRARIES += liblog
diff --git a/dist/shell.c b/dist/shell.c
index c72b78d..184c98f 100644
--- a/dist/shell.c
+++ b/dist/shell.c
@@ -25,6 +25,12 @@
 #include <ctype.h>
 #include <stdarg.h>
 
+// Begin Android Add
+#ifndef NO_ANDROID_FUNCS
+#include <sqlite3_android.h>
+#endif
+// End Android Add
+
 #if !defined(_WIN32) && !defined(WIN32) && !defined(__OS2__)
 # include <signal.h>
 # if !defined(__RTP__) && !defined(_WRS_KERNEL)
@@ -88,7 +94,7 @@
 
 /* Return the difference of two time_structs in seconds */
 static double timeDiff(struct timeval *pStart, struct timeval *pEnd){
-  return (pEnd->tv_usec - pStart->tv_usec)*0.000001 + 
+  return (pEnd->tv_usec - pStart->tv_usec)*0.000001 +
          (double)(pEnd->tv_sec - pStart->tv_sec);
 }
 
@@ -143,7 +149,7 @@
         if( NULL != getProcessTimesAddr ){
           return 1;
         }
-        FreeLibrary(hinstLib); 
+        FreeLibrary(hinstLib);
       }
     }
   }
@@ -185,7 +191,7 @@
 #define HAS_TIMER hasTimer()
 
 #else
-#define BEGIN_TIMER 
+#define BEGIN_TIMER
 #define END_TIMER
 #define HAS_TIMER 0
 #endif
@@ -331,7 +337,7 @@
   if( argc>3 ){
     int i;
     pType = 0;
-    for(i=0; aSchemaTable[i].zName; i++){ 
+    for(i=0; aSchemaTable[i].zName; i++){
       if( 0==strcmp(argv[3], aSchemaTable[i].zName) ){
         pType = &aSchemaTable[i];
       }
@@ -459,7 +465,7 @@
         goto next_exit;
       }
 
-      /* Set zSql to the SQL to pull the list of tables from the 
+      /* Set zSql to the SQL to pull the list of tables from the
       ** sqlite_master (or sqlite_temp_master) table of the database
       ** identfied by the row pointed to by the SQL statement pCur->pDbList
       ** (iterating through a "PRAGMA database_list;" statement).
@@ -514,7 +520,7 @@
 ** Reset a schema table cursor.
 */
 static int schemaFilter(
-  sqlite3_vtab_cursor *pVtabCursor, 
+  sqlite3_vtab_cursor *pVtabCursor,
   int idxNum, const char *idxStr,
   int argc, sqlite3_value **argv
 ){
@@ -580,8 +586,8 @@
 /*
 **   sj(zValue, zJoin)
 **
-** The following block contains the implementation of an aggregate 
-** function that returns a string. Each time the function is stepped, 
+** The following block contains the implementation of an aggregate
+** function that returns a string. Each time the function is stepped,
 ** it appends data to an internal buffer. When the aggregate is finalized,
 ** the contents of the buffer are returned.
 **
@@ -622,7 +628,7 @@
     p->zBuf = sqlite3_mprintf("%s", sqlite3_value_text(argv[0]));
   }else{
     char *zTmp = p->zBuf;
-    p->zBuf = sqlite3_mprintf("%s%s%s", 
+    p->zBuf = sqlite3_mprintf("%s%s%s",
         zTmp, sqlite3_value_text(argv[1]), sqlite3_value_text(argv[0])
     );
     sqlite3_free(zTmp);
@@ -634,14 +640,14 @@
 **
 ** This scalar function accepts a single argument and interprets it as
 ** a text value. The return value is the argument enclosed in double
-** quotes. If any double quote characters are present in the argument, 
+** quotes. If any double quote characters are present in the argument,
 ** these are escaped.
 **
 **   dq('the raven "Nevermore."') == '"the raven ""Nevermore."""'
 */
 static void doublequote(
-  sqlite3_context *context, 
-  int argc, 
+  sqlite3_context *context,
+  int argc,
   sqlite3_value **argv
 ){
   int ii;
@@ -671,8 +677,8 @@
 **   multireplace(zString, zSearch1, zReplace1, ...)
 */
 static void multireplace(
-  sqlite3_context *context, 
-  int argc, 
+  sqlite3_context *context,
+  int argc,
   sqlite3_value **argv
 ){
   int i = 0;
@@ -765,8 +771,8 @@
 */
 static int populateTempTable(sqlite3 *db, GenfkeyCb *pCallback){
   int rc;
-  
-  rc = sqlite3_exec(db, 
+
+  rc = sqlite3_exec(db,
       "CREATE VIRTUAL TABLE temp.v_fkey USING schema(foreign_key_list);"
       "CREATE VIRTUAL TABLE temp.v_col USING schema(table_info);"
       "CREATE VIRTUAL TABLE temp.v_idxlist USING schema(index_list);"
@@ -809,7 +815,7 @@
   );
   if( rc!=SQLITE_OK ) return rc;
 
-  /* Detect attempts to implicitly map to the primary key of a table 
+  /* Detect attempts to implicitly map to the primary key of a table
   ** that has no primary key column.
   */
   rc = detectSchemaProblem(db, "implicit mapping to non-existant primary key",
@@ -822,7 +828,7 @@
   if( rc!=SQLITE_OK ) return rc;
 
   /* Fix all the implicit primary key mappings in the temp.fkey table. */
-  rc = sqlite3_exec(db, 
+  rc = sqlite3_exec(db,
     "UPDATE temp.fkey SET to_col = "
       "(SELECT name FROM temp.v_col WHERE pk AND tablename=temp.fkey.to_tbl)"
     " WHERE to_col IS NULL;"
@@ -830,10 +836,10 @@
   );
   if( rc!=SQLITE_OK ) return rc;
 
-  /* Now check that all all parent keys are either primary keys or 
+  /* Now check that all all parent keys are either primary keys or
   ** subject to a unique constraint.
   */
-  rc = sqlite3_exec(db, 
+  rc = sqlite3_exec(db,
     "CREATE TABLE temp.idx2 AS SELECT "
       "il.tablename AS tablename,"
       "ii.indexname AS indexname,"
@@ -845,12 +851,12 @@
 
     "CREATE TABLE temp.idx AS SELECT "
       "tablename, indexname, sj(dq(col),',') AS cols "
-      "FROM (SELECT * FROM temp.idx2 ORDER BY col) " 
+      "FROM (SELECT * FROM temp.idx2 ORDER BY col) "
       "GROUP BY tablename, indexname;"
 
     "CREATE TABLE temp.fkey2 AS SELECT "
         "fkid, from_tbl, to_tbl, sj(dq(to_col),',') AS cols "
-        "FROM (SELECT * FROM temp.fkey ORDER BY to_col) " 
+        "FROM (SELECT * FROM temp.fkey ORDER BY to_col) "
         "GROUP BY fkid, from_tbl;"
 
     "CREATE TABLE temp.triggers AS SELECT "
@@ -896,12 +902,12 @@
       ** the referenced table.
       */
       "CREATE TRIGGER /name/_insert_referencing BEFORE INSERT ON /tbl/ WHEN \n"
-      "    /key_notnull/ AND NOT EXISTS (SELECT 1 FROM /ref/ WHERE /cond1/)\n" 
+      "    /key_notnull/ AND NOT EXISTS (SELECT 1 FROM /ref/ WHERE /cond1/)\n"
       "BEGIN\n"
         "  SELECT RAISE(ABORT, ''constraint failed'');\n"
       "END;\n"
 
-      /* The "BEFORE UPDATE ON <referencing>" trigger. This trigger's job 
+      /* The "BEFORE UPDATE ON <referencing>" trigger. This trigger's job
       ** is to throw an exception if the user tries to update a row in the
       ** referencing table causing it to correspond to no row in the
       ** referenced table.
@@ -909,14 +915,14 @@
       "CREATE TRIGGER /name/_update_referencing BEFORE\n"
       "    UPDATE OF /rkey_list/ ON /tbl/ WHEN \n"
       "    /key_notnull/ AND \n"
-      "    NOT EXISTS (SELECT 1 FROM /ref/ WHERE /cond1/)\n" 
+      "    NOT EXISTS (SELECT 1 FROM /ref/ WHERE /cond1/)\n"
       "BEGIN\n"
         "  SELECT RAISE(ABORT, ''constraint failed'');\n"
       "END;\n"
 
 
-      /* The "BEFORE DELETE ON <referenced>" trigger. This trigger's job 
-      ** is to detect when a row is deleted from the referenced table to 
+      /* The "BEFORE DELETE ON <referenced>" trigger. This trigger's job
+      ** is to detect when a row is deleted from the referenced table to
       ** which rows in the referencing table correspond. The action taken
       ** depends on the value of the 'ON DELETE' clause.
       */
@@ -926,10 +932,10 @@
       "  /delete_action/\n"
       "END;\n"
 
-      /* The "AFTER UPDATE ON <referenced>" trigger. This trigger's job 
-      ** is to detect when the key columns of a row in the referenced table 
+      /* The "AFTER UPDATE ON <referenced>" trigger. This trigger's job
+      ** is to detect when the key columns of a row in the referenced table
       ** to which one or more rows in the referencing table correspond are
-      ** updated. The action taken depends on the value of the 'ON UPDATE' 
+      ** updated. The action taken depends on the value of the 'ON UPDATE'
       ** clause.
       */
       "CREATE TRIGGER /name/_update_referenced AFTER\n"
@@ -1035,7 +1041,7 @@
   ** previous run of this program.
   */
   cb.eType = GENFKEY_DROPTRIGGER;
-  rc = sqlite3_exec(db, 
+  rc = sqlite3_exec(db,
     "SELECT 'DROP TRIGGER main.' || dq(triggername) || ';' FROM triggers"
     ,invokeCallback, (void *)&cb, 0
   );
@@ -1149,8 +1155,8 @@
 }
 
 /*
-** A global char* and an SQL function to access its current value 
-** from within an SQL statement. This program used to use the 
+** A global char* and an SQL function to access its current value
+** from within an SQL statement. This program used to use the
 ** sqlite_exec_printf() API to substitue a string into an SQL statement.
 ** The correct way to do this with sqlite3 is to use the bind API, but
 ** since the shell is built around the callback paradigm it would be a lot
@@ -1406,11 +1412,11 @@
 static void output_html_string(FILE *out, const char *z){
   int i;
   while( *z ){
-    for(i=0;   z[i] 
-            && z[i]!='<' 
-            && z[i]!='&' 
-            && z[i]!='>' 
-            && z[i]!='\"' 
+    for(i=0;   z[i]
+            && z[i]!='<'
+            && z[i]!='&'
+            && z[i]!='>'
+            && z[i]!='\"'
             && z[i]!='\'';
         i++){}
     if( i>0 ){
@@ -1438,22 +1444,22 @@
 ** array, then the string must be quoted for CSV.
 */
 static const char needCsvQuote[] = {
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
-  1, 0, 1, 0, 0, 0, 0, 1,   0, 0, 0, 0, 0, 0, 0, 0, 
-  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0, 
-  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0, 
-  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0, 
-  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0, 
-  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 1, 
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
-  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
+  1, 0, 1, 0, 0, 0, 0, 1,   0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 1,
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,
 };
 
 /*
@@ -1470,8 +1476,8 @@
     int i;
     int nSep = strlen30(p->separator);
     for(i=0; z[i]; i++){
-      if( needCsvQuote[((unsigned char*)z)[i]] 
-         || (z[i]==p->separator[0] && 
+      if( needCsvQuote[((unsigned char*)z)[i]]
+         || (z[i]==p->separator[0] &&
              (nSep==1 || memcmp(z, p->separator, nSep)==0)) ){
         i = 0;
         break;
@@ -1576,7 +1582,7 @@
         }else{
            w = 10;
         }
-        if( p->mode==MODE_Explain && azArg[i] && 
+        if( p->mode==MODE_Explain && azArg[i] &&
            strlen30(azArg[i])>w ){
           w = strlen30(azArg[i]);
         }
@@ -1741,7 +1747,7 @@
 ** added to zIn, and the result returned in memory obtained from malloc().
 ** zIn, if it was not NULL, is freed.
 **
-** If the third argument, quote, is not '\0', then it is used as a 
+** If the third argument, quote, is not '\0', then it is used as a
 ** quote character for zAppend.
 */
 static char *appendText(char *zIn, char const *zAppend, char quote){
@@ -1828,12 +1834,12 @@
 }
 
 /*
-** Execute a statement or set of statements.  Print 
-** any result rows/columns depending on the current mode 
+** Execute a statement or set of statements.  Print
+** any result rows/columns depending on the current mode
 ** set via the supplied callback.
 **
-** This is very similar to SQLite's built-in sqlite3_exec() 
-** function except it takes a slightly different callback 
+** This is very similar to SQLite's built-in sqlite3_exec()
+** function except it takes a slightly different callback
 ** and callback data argument.
 */
 static int shell_exec(
@@ -1884,7 +1890,7 @@
             char **azVals = &azCols[nCol];       /* Results */
             int *aiTypes = (int *)&azVals[nCol]; /* Result types */
             int i;
-            assert(sizeof(int) <= sizeof(char *)); 
+            assert(sizeof(int) <= sizeof(char *));
             /* save off ptrs to column names */
             for(i=0; i<nCol; i++){
               azCols[i] = (char *)sqlite3_column_name(pStmt, i);
@@ -1906,7 +1912,7 @@
               } /* end for */
 
               /* if data and types extracted successfully... */
-              if( SQLITE_ROW == rc ){ 
+              if( SQLITE_ROW == rc ){
                 /* call the supplied callback with the result row data */
                 if( xCallback(pArg, nCol, azVals, azCols, aiTypes) ){
                   rc = SQLITE_ABORT;
@@ -1927,7 +1933,7 @@
         }
       }
 
-      /* Finalize the statement just executed. If this fails, save a 
+      /* Finalize the statement just executed. If this fails, save a
       ** copy of the error message. Otherwise, set zSql to point to the
       ** next statement to execute. */
       rc = sqlite3_finalize(pStmt);
@@ -1963,7 +1969,7 @@
   zTable = azArg[0];
   zType = azArg[1];
   zSql = azArg[2];
-  
+
   if( strcmp(zTable, "sqlite_sequence")==0 ){
     zPrepStmt = "DELETE FROM sqlite_sequence;\n";
   }else if( strcmp(zTable, "sqlite_stat1")==0 ){
@@ -1993,7 +1999,7 @@
     char *zTableInfo = 0;
     char *zTmp = 0;
     int nRow = 0;
-   
+
     zTableInfo = appendText(zTableInfo, "PRAGMA table_info(", 0);
     zTableInfo = appendText(zTableInfo, zTable, '"');
     zTableInfo = appendText(zTableInfo, ");", 0);
@@ -2049,7 +2055,7 @@
 ** "ORDER BY rowid DESC" to the end.
 */
 static int run_schema_dump_query(
-  struct callback_data *p, 
+  struct callback_data *p,
   const char *zQuery,
   char **pzErrMsg
 ){
@@ -2106,7 +2112,7 @@
   if( eType==GENFKEY_ERROR && !p->isIgnoreErrors ){
     p->nErr++;
     fprintf(stderr, "%s\n", z);
-  } 
+  }
 
   if( p->nErr==0 && (
         (eType==GENFKEY_CREATETRIGGER)
@@ -2207,13 +2213,27 @@
           shellstaticFunc, 0, 0);
     }
     if( db==0 || SQLITE_OK!=sqlite3_errcode(db) ){
-      fprintf(stderr,"Error: unable to open database \"%s\": %s\n", 
+      fprintf(stderr,"Error: unable to open database \"%s\": %s\n",
           p->zDbFilename, sqlite3_errmsg(db));
       exit(1);
     }
 #ifndef SQLITE_OMIT_LOAD_EXTENSION
     sqlite3_enable_load_extension(p->db, 1);
 #endif
+    // Begin Android Add
+    #ifndef NO_ANDROID_FUNCS
+        int err = register_localized_collators(db, "en_US", 0);
+        if (err != SQLITE_OK) {
+          fprintf(stderr, "register_localized_collators() failed\n");
+          exit(1);
+        }
+        err = register_android_functions(db, 0);
+        if (err != SQLITE_OK) {
+          fprintf(stderr, "register_android_functions() failed\n");
+          exit(1);
+        }
+    #endif
+    // End Android Add
   }
 }
 
@@ -2381,11 +2401,11 @@
     p->writableSchema = 0;
     sqlite3_exec(p->db, "PRAGMA writable_schema=ON", 0, 0, 0);
     if( nArg==1 ){
-      run_schema_dump_query(p, 
+      run_schema_dump_query(p,
         "SELECT name, type, sql FROM sqlite_master "
         "WHERE sql NOT NULL AND type=='table' AND name!='sqlite_sequence'", 0
       );
-      run_schema_dump_query(p, 
+      run_schema_dump_query(p,
         "SELECT name, type, sql FROM sqlite_master "
         "WHERE name=='sqlite_sequence'", 0
       );
@@ -2500,7 +2520,7 @@
     char *zSql;                 /* An SQL statement */
     char *zLine;                /* A single line of input from the file */
     char **azCol;               /* zLine[] broken up into columns */
-    char *zCommit;              /* How to commit changes */   
+    char *zCommit;              /* How to commit changes */
     FILE *in;                   /* The input file */
     int lineno = 0;             /* Line number of input file */
 
@@ -3005,11 +3025,11 @@
     open_db(p);
     sqlite3_busy_timeout(p->db, atoi(azArg[1]));
   }else
-    
+
   if( HAS_TIMER && c=='t' && n>=5 && strncmp(azArg[0], "timer", n)==0 && nArg==2 ){
     enableTimer = booleanValue(azArg[1]);
   }else
-  
+
   if( c=='w' && strncmp(azArg[0], "width", n)==0 && nArg>1 ){
     int j;
     assert( nArg<=ArraySize(azArg) );
@@ -3173,7 +3193,7 @@
       if( rc || zErrMsg ){
         char zPrefix[100];
         if( in!=0 || !stdin_is_interactive ){
-          sqlite3_snprintf(sizeof(zPrefix), zPrefix, 
+          sqlite3_snprintf(sizeof(zPrefix), zPrefix,
                            "Error: near line %d:", startline);
         }else{
           sqlite3_snprintf(sizeof(zPrefix), zPrefix, "Error:");
@@ -3312,7 +3332,7 @@
 /*
 ** Show available command line options
 */
-static const char zOptions[] = 
+static const char zOptions[] =
   "   -help                show this message\n"
   "   -init filename       read/process named file\n"
   "   -echo                print commands before execution\n"
@@ -3331,7 +3351,7 @@
 ;
 static void usage(int showDetail){
   fprintf(stderr,
-      "Usage: %s [OPTIONS] FILENAME [SQL]\n"  
+      "Usage: %s [OPTIONS] FILENAME [SQL]\n"
       "FILENAME is the name of an SQLite database. A new database is created\n"
       "if the file does not previously exist.\n", Argv0);
   if( showDetail ){
@@ -3389,7 +3409,7 @@
       i++;
       zInitFile = argv[i];
     /* Need to check for batch mode here to so we can avoid printing
-    ** informational messages (like from process_sqliterc) before 
+    ** informational messages (like from process_sqliterc) before
     ** we do the actual processing of arguments later in a second pass.
     */
     }else if( strcmp(argv[i],"-batch")==0 ){
diff --git a/dist/shell.c.orig b/dist/shell.c.orig
new file mode 100644
index 0000000..c72b78d
--- /dev/null
+++ b/dist/shell.c.orig
@@ -0,0 +1,3569 @@
+/*
+** 2001 September 15
+**
+** The author disclaims copyright to this source code.  In place of
+** a legal notice, here is a blessing:
+**
+**    May you do good and not evil.
+**    May you find forgiveness for yourself and forgive others.
+**    May you share freely, never taking more than you give.
+**
+*************************************************************************
+** This file contains code to implement the "sqlite" command line
+** utility for accessing SQLite databases.
+*/
+#if defined(_WIN32) || defined(WIN32)
+/* This needs to come before any includes for MSVC compiler */
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <assert.h>
+#include "sqlite3.h"
+#include <ctype.h>
+#include <stdarg.h>
+
+#if !defined(_WIN32) && !defined(WIN32) && !defined(__OS2__)
+# include <signal.h>
+# if !defined(__RTP__) && !defined(_WRS_KERNEL)
+#  include <pwd.h>
+# endif
+# include <unistd.h>
+# include <sys/types.h>
+#endif
+
+#ifdef __OS2__
+# include <unistd.h>
+#endif
+
+#if defined(HAVE_READLINE) && HAVE_READLINE==1
+# include <readline/readline.h>
+# include <readline/history.h>
+#else
+# define readline(p) local_getline(p,stdin)
+# define add_history(X)
+# define read_history(X)
+# define write_history(X)
+# define stifle_history(X)
+#endif
+
+#if defined(_WIN32) || defined(WIN32)
+# include <io.h>
+#define isatty(h) _isatty(h)
+#define access(f,m) _access((f),(m))
+#else
+/* Make sure isatty() has a prototype.
+*/
+extern int isatty();
+#endif
+
+#if defined(_WIN32_WCE)
+/* Windows CE (arm-wince-mingw32ce-gcc) does not provide isatty()
+ * thus we always assume that we have a console. That can be
+ * overridden with the -batch command line option.
+ */
+#define isatty(x) 1
+#endif
+
+#if !defined(_WIN32) && !defined(WIN32) && !defined(__OS2__) && !defined(__RTP__) && !defined(_WRS_KERNEL)
+#include <sys/time.h>
+#include <sys/resource.h>
+
+/* Saved resource information for the beginning of an operation */
+static struct rusage sBegin;
+
+/* True if the timer is enabled */
+static int enableTimer = 0;
+
+/*
+** Begin timing an operation
+*/
+static void beginTimer(void){
+  if( enableTimer ){
+    getrusage(RUSAGE_SELF, &sBegin);
+  }
+}
+
+/* Return the difference of two time_structs in seconds */
+static double timeDiff(struct timeval *pStart, struct timeval *pEnd){
+  return (pEnd->tv_usec - pStart->tv_usec)*0.000001 + 
+         (double)(pEnd->tv_sec - pStart->tv_sec);
+}
+
+/*
+** Print the timing results.
+*/
+static void endTimer(void){
+  if( enableTimer ){
+    struct rusage sEnd;
+    getrusage(RUSAGE_SELF, &sEnd);
+    printf("CPU Time: user %f sys %f\n",
+       timeDiff(&sBegin.ru_utime, &sEnd.ru_utime),
+       timeDiff(&sBegin.ru_stime, &sEnd.ru_stime));
+  }
+}
+
+#define BEGIN_TIMER beginTimer()
+#define END_TIMER endTimer()
+#define HAS_TIMER 1
+
+#elif (defined(_WIN32) || defined(WIN32))
+
+#include <windows.h>
+
+/* Saved resource information for the beginning of an operation */
+static HANDLE hProcess;
+static FILETIME ftKernelBegin;
+static FILETIME ftUserBegin;
+typedef BOOL (WINAPI *GETPROCTIMES)(HANDLE, LPFILETIME, LPFILETIME, LPFILETIME, LPFILETIME);
+static GETPROCTIMES getProcessTimesAddr = NULL;
+
+/* True if the timer is enabled */
+static int enableTimer = 0;
+
+/*
+** Check to see if we have timer support.  Return 1 if necessary
+** support found (or found previously).
+*/
+static int hasTimer(void){
+  if( getProcessTimesAddr ){
+    return 1;
+  } else {
+    /* GetProcessTimes() isn't supported in WIN95 and some other Windows versions.
+    ** See if the version we are running on has it, and if it does, save off
+    ** a pointer to it and the current process handle.
+    */
+    hProcess = GetCurrentProcess();
+    if( hProcess ){
+      HINSTANCE hinstLib = LoadLibrary(TEXT("Kernel32.dll"));
+      if( NULL != hinstLib ){
+        getProcessTimesAddr = (GETPROCTIMES) GetProcAddress(hinstLib, "GetProcessTimes");
+        if( NULL != getProcessTimesAddr ){
+          return 1;
+        }
+        FreeLibrary(hinstLib); 
+      }
+    }
+  }
+  return 0;
+}
+
+/*
+** Begin timing an operation
+*/
+static void beginTimer(void){
+  if( enableTimer && getProcessTimesAddr ){
+    FILETIME ftCreation, ftExit;
+    getProcessTimesAddr(hProcess, &ftCreation, &ftExit, &ftKernelBegin, &ftUserBegin);
+  }
+}
+
+/* Return the difference of two FILETIME structs in seconds */
+static double timeDiff(FILETIME *pStart, FILETIME *pEnd){
+  sqlite_int64 i64Start = *((sqlite_int64 *) pStart);
+  sqlite_int64 i64End = *((sqlite_int64 *) pEnd);
+  return (double) ((i64End - i64Start) / 10000000.0);
+}
+
+/*
+** Print the timing results.
+*/
+static void endTimer(void){
+  if( enableTimer && getProcessTimesAddr){
+    FILETIME ftCreation, ftExit, ftKernelEnd, ftUserEnd;
+    getProcessTimesAddr(hProcess, &ftCreation, &ftExit, &ftKernelEnd, &ftUserEnd);
+    printf("CPU Time: user %f sys %f\n",
+       timeDiff(&ftUserBegin, &ftUserEnd),
+       timeDiff(&ftKernelBegin, &ftKernelEnd));
+  }
+}
+
+#define BEGIN_TIMER beginTimer()
+#define END_TIMER endTimer()
+#define HAS_TIMER hasTimer()
+
+#else
+#define BEGIN_TIMER 
+#define END_TIMER
+#define HAS_TIMER 0
+#endif
+
+/*
+** Used to prevent warnings about unused parameters
+*/
+#define UNUSED_PARAMETER(x) (void)(x)
+
+
+/**************************************************************************
+***************************************************************************
+** Begin genfkey logic.
+*/
+#if !defined(SQLITE_OMIT_VIRTUALTABLE) && !defined SQLITE_OMIT_SUBQUERY
+
+#define GENFKEY_ERROR         1
+#define GENFKEY_DROPTRIGGER   2
+#define GENFKEY_CREATETRIGGER 3
+static int genfkey_create_triggers(sqlite3 *, const char *, void *,
+  int (*)(void *, int, const char *)
+);
+
+struct GenfkeyCb {
+  void *pCtx;
+  int eType;
+  int (*xData)(void *, int, const char *);
+};
+typedef struct GenfkeyCb GenfkeyCb;
+
+/* The code in this file defines a sqlite3 virtual-table module that
+** provides a read-only view of the current database schema. There is one
+** row in the schema table for each column in the database schema.
+*/
+#define SCHEMA \
+"CREATE TABLE x("                                                            \
+  "database,"          /* Name of database (i.e. main, temp etc.) */         \
+  "tablename,"         /* Name of table */                                   \
+  "cid,"               /* Column number (from left-to-right, 0 upward) */    \
+  "name,"              /* Column name */                                     \
+  "type,"              /* Specified type (i.e. VARCHAR(32)) */               \
+  "not_null,"          /* Boolean. True if NOT NULL was specified */         \
+  "dflt_value,"        /* Default value for this column */                   \
+  "pk"                 /* True if this column is part of the primary key */  \
+")"
+
+#define SCHEMA2 \
+"CREATE TABLE x("                                                            \
+  "database,"          /* Name of database (i.e. main, temp etc.) */         \
+  "from_tbl,"          /* Name of table */                                   \
+  "fkid,"                                                                    \
+  "seq,"                                                                     \
+  "to_tbl,"                                                                  \
+  "from_col,"                                                                \
+  "to_col,"                                                                  \
+  "on_update,"                                                               \
+  "on_delete,"                                                               \
+  "match"                                                                    \
+")"
+
+#define SCHEMA3 \
+"CREATE TABLE x("                                                            \
+  "database,"          /* Name of database (i.e. main, temp etc.) */         \
+  "tablename,"         /* Name of table */                                   \
+  "seq,"                                                                     \
+  "name,"                                                                    \
+  "isunique"                                                                 \
+")"
+
+#define SCHEMA4 \
+"CREATE TABLE x("                                                            \
+  "database,"          /* Name of database (i.e. main, temp etc.) */         \
+  "indexname,"         /* Name of table */                                   \
+  "seqno,"                                                                   \
+  "cid,"                                                                     \
+  "name"                                                                     \
+")"
+
+#define SCHEMA5 \
+"CREATE TABLE x("                                                            \
+  "database,"          /* Name of database (i.e. main, temp etc.) */         \
+  "triggername,"       /* Name of trigger */                                 \
+  "dummy"              /* Unused */                                          \
+")"
+
+typedef struct SchemaTable SchemaTable;
+static struct SchemaTable {
+  const char *zName;
+  const char *zObject;
+  const char *zPragma;
+  const char *zSchema;
+} aSchemaTable[] = {
+  { "table_info",       "table", "PRAGMA %Q.table_info(%Q)",       SCHEMA },
+  { "foreign_key_list", "table", "PRAGMA %Q.foreign_key_list(%Q)", SCHEMA2 },
+  { "index_list",       "table", "PRAGMA %Q.index_list(%Q)",       SCHEMA3 },
+  { "index_info",       "index", "PRAGMA %Q.index_info(%Q)",       SCHEMA4 },
+  { "trigger_list",     "trigger", "SELECT 1",                     SCHEMA5 },
+  { 0, 0, 0, 0 }
+};
+
+typedef struct schema_vtab schema_vtab;
+typedef struct schema_cursor schema_cursor;
+
+/* A schema table object */
+struct schema_vtab {
+  sqlite3_vtab base;
+  sqlite3 *db;
+  SchemaTable *pType;
+};
+
+/* A schema table cursor object */
+struct schema_cursor {
+  sqlite3_vtab_cursor base;
+  sqlite3_stmt *pDbList;
+  sqlite3_stmt *pTableList;
+  sqlite3_stmt *pColumnList;
+  int rowid;
+};
+
+/*
+** Table destructor for the schema module.
+*/
+static int schemaDestroy(sqlite3_vtab *pVtab){
+  sqlite3_free(pVtab);
+  return 0;
+}
+
+/*
+** Table constructor for the schema module.
+*/
+static int schemaCreate(
+  sqlite3 *db,
+  void *pAux,
+  int argc, const char *const*argv,
+  sqlite3_vtab **ppVtab,
+  char **pzErr
+){
+  int rc = SQLITE_NOMEM;
+  schema_vtab *pVtab;
+  SchemaTable *pType = &aSchemaTable[0];
+
+  UNUSED_PARAMETER(pzErr);
+  if( argc>3 ){
+    int i;
+    pType = 0;
+    for(i=0; aSchemaTable[i].zName; i++){ 
+      if( 0==strcmp(argv[3], aSchemaTable[i].zName) ){
+        pType = &aSchemaTable[i];
+      }
+    }
+    if( !pType ){
+      return SQLITE_ERROR;
+    }
+  }
+
+  pVtab = sqlite3_malloc(sizeof(schema_vtab));
+  if( pVtab ){
+    memset(pVtab, 0, sizeof(schema_vtab));
+    pVtab->db = (sqlite3 *)pAux;
+    pVtab->pType = pType;
+    rc = sqlite3_declare_vtab(db, pType->zSchema);
+  }
+  *ppVtab = (sqlite3_vtab *)pVtab;
+  return rc;
+}
+
+/*
+** Open a new cursor on the schema table.
+*/
+static int schemaOpen(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor){
+  int rc = SQLITE_NOMEM;
+  schema_cursor *pCur;
+  UNUSED_PARAMETER(pVTab);
+  pCur = sqlite3_malloc(sizeof(schema_cursor));
+  if( pCur ){
+    memset(pCur, 0, sizeof(schema_cursor));
+    *ppCursor = (sqlite3_vtab_cursor *)pCur;
+    rc = SQLITE_OK;
+  }
+  return rc;
+}
+
+/*
+** Close a schema table cursor.
+*/
+static int schemaClose(sqlite3_vtab_cursor *cur){
+  schema_cursor *pCur = (schema_cursor *)cur;
+  sqlite3_finalize(pCur->pDbList);
+  sqlite3_finalize(pCur->pTableList);
+  sqlite3_finalize(pCur->pColumnList);
+  sqlite3_free(pCur);
+  return SQLITE_OK;
+}
+
+static void columnToResult(sqlite3_context *ctx, sqlite3_stmt *pStmt, int iCol){
+  switch( sqlite3_column_type(pStmt, iCol) ){
+    case SQLITE_NULL:
+      sqlite3_result_null(ctx);
+      break;
+    case SQLITE_INTEGER:
+      sqlite3_result_int64(ctx, sqlite3_column_int64(pStmt, iCol));
+      break;
+    case SQLITE_FLOAT:
+      sqlite3_result_double(ctx, sqlite3_column_double(pStmt, iCol));
+      break;
+    case SQLITE_TEXT: {
+      const char *z = (const char *)sqlite3_column_text(pStmt, iCol);
+      sqlite3_result_text(ctx, z, -1, SQLITE_TRANSIENT);
+      break;
+    }
+  }
+}
+
+/*
+** Retrieve a column of data.
+*/
+static int schemaColumn(sqlite3_vtab_cursor *cur, sqlite3_context *ctx, int i){
+  schema_cursor *pCur = (schema_cursor *)cur;
+  switch( i ){
+    case 0:
+      columnToResult(ctx, pCur->pDbList, 1);
+      break;
+    case 1:
+      columnToResult(ctx, pCur->pTableList, 0);
+      break;
+    default:
+      columnToResult(ctx, pCur->pColumnList, i-2);
+      break;
+  }
+  return SQLITE_OK;
+}
+
+/*
+** Retrieve the current rowid.
+*/
+static int schemaRowid(sqlite3_vtab_cursor *cur, sqlite_int64 *pRowid){
+  schema_cursor *pCur = (schema_cursor *)cur;
+  *pRowid = pCur->rowid;
+  return SQLITE_OK;
+}
+
+static int finalize(sqlite3_stmt **ppStmt){
+  int rc = sqlite3_finalize(*ppStmt);
+  *ppStmt = 0;
+  return rc;
+}
+
+static int schemaEof(sqlite3_vtab_cursor *cur){
+  schema_cursor *pCur = (schema_cursor *)cur;
+  return (pCur->pDbList ? 0 : 1);
+}
+
+/*
+** Advance the cursor to the next row.
+*/
+static int schemaNext(sqlite3_vtab_cursor *cur){
+  int rc = SQLITE_OK;
+  schema_cursor *pCur = (schema_cursor *)cur;
+  schema_vtab *pVtab = (schema_vtab *)(cur->pVtab);
+  char *zSql = 0;
+
+  while( !pCur->pColumnList || SQLITE_ROW!=sqlite3_step(pCur->pColumnList) ){
+    if( SQLITE_OK!=(rc = finalize(&pCur->pColumnList)) ) goto next_exit;
+
+    while( !pCur->pTableList || SQLITE_ROW!=sqlite3_step(pCur->pTableList) ){
+      if( SQLITE_OK!=(rc = finalize(&pCur->pTableList)) ) goto next_exit;
+
+      assert(pCur->pDbList);
+      while( SQLITE_ROW!=sqlite3_step(pCur->pDbList) ){
+        rc = finalize(&pCur->pDbList);
+        goto next_exit;
+      }
+
+      /* Set zSql to the SQL to pull the list of tables from the 
+      ** sqlite_master (or sqlite_temp_master) table of the database
+      ** identfied by the row pointed to by the SQL statement pCur->pDbList
+      ** (iterating through a "PRAGMA database_list;" statement).
+      */
+      if( sqlite3_column_int(pCur->pDbList, 0)==1 ){
+        zSql = sqlite3_mprintf(
+            "SELECT name FROM sqlite_temp_master WHERE type=%Q",
+            pVtab->pType->zObject
+        );
+      }else{
+        sqlite3_stmt *pDbList = pCur->pDbList;
+        zSql = sqlite3_mprintf(
+            "SELECT name FROM %Q.sqlite_master WHERE type=%Q",
+             sqlite3_column_text(pDbList, 1), pVtab->pType->zObject
+        );
+      }
+      if( !zSql ){
+        rc = SQLITE_NOMEM;
+        goto next_exit;
+      }
+
+      rc = sqlite3_prepare(pVtab->db, zSql, -1, &pCur->pTableList, 0);
+      sqlite3_free(zSql);
+      if( rc!=SQLITE_OK ) goto next_exit;
+    }
+
+    /* Set zSql to the SQL to the table_info pragma for the table currently
+    ** identified by the rows pointed to by statements pCur->pDbList and
+    ** pCur->pTableList.
+    */
+    zSql = sqlite3_mprintf(pVtab->pType->zPragma,
+        sqlite3_column_text(pCur->pDbList, 1),
+        sqlite3_column_text(pCur->pTableList, 0)
+    );
+
+    if( !zSql ){
+      rc = SQLITE_NOMEM;
+      goto next_exit;
+    }
+    rc = sqlite3_prepare(pVtab->db, zSql, -1, &pCur->pColumnList, 0);
+    sqlite3_free(zSql);
+    if( rc!=SQLITE_OK ) goto next_exit;
+  }
+  pCur->rowid++;
+
+next_exit:
+  /* TODO: Handle rc */
+  return rc;
+}
+
+/*
+** Reset a schema table cursor.
+*/
+static int schemaFilter(
+  sqlite3_vtab_cursor *pVtabCursor, 
+  int idxNum, const char *idxStr,
+  int argc, sqlite3_value **argv
+){
+  int rc;
+  schema_vtab *pVtab = (schema_vtab *)(pVtabCursor->pVtab);
+  schema_cursor *pCur = (schema_cursor *)pVtabCursor;
+  UNUSED_PARAMETER(idxNum);
+  UNUSED_PARAMETER(idxStr);
+  UNUSED_PARAMETER(argc);
+  UNUSED_PARAMETER(argv);
+  pCur->rowid = 0;
+  finalize(&pCur->pTableList);
+  finalize(&pCur->pColumnList);
+  finalize(&pCur->pDbList);
+  rc = sqlite3_prepare(pVtab->db,"SELECT 0, 'main'", -1, &pCur->pDbList, 0);
+  return (rc==SQLITE_OK ? schemaNext(pVtabCursor) : rc);
+}
+
+/*
+** Analyse the WHERE condition.
+*/
+static int schemaBestIndex(sqlite3_vtab *tab, sqlite3_index_info *pIdxInfo){
+  UNUSED_PARAMETER(tab);
+  UNUSED_PARAMETER(pIdxInfo);
+  return SQLITE_OK;
+}
+
+/*
+** A virtual table module that merely echos method calls into TCL
+** variables.
+*/
+static sqlite3_module schemaModule = {
+  0,                           /* iVersion */
+  schemaCreate,
+  schemaCreate,
+  schemaBestIndex,
+  schemaDestroy,
+  schemaDestroy,
+  schemaOpen,                  /* xOpen - open a cursor */
+  schemaClose,                 /* xClose - close a cursor */
+  schemaFilter,                /* xFilter - configure scan constraints */
+  schemaNext,                  /* xNext - advance a cursor */
+  schemaEof,                   /* xEof */
+  schemaColumn,                /* xColumn - read data */
+  schemaRowid,                 /* xRowid - read data */
+  0,                           /* xUpdate */
+  0,                           /* xBegin */
+  0,                           /* xSync */
+  0,                           /* xCommit */
+  0,                           /* xRollback */
+  0,                           /* xFindMethod */
+  0,                           /* xRename */
+};
+
+/*
+** Extension load function.
+*/
+static int installSchemaModule(sqlite3 *db, sqlite3 *sdb){
+  sqlite3_create_module(db, "schema", &schemaModule, (void *)sdb);
+  return 0;
+}
+
+/*
+**   sj(zValue, zJoin)
+**
+** The following block contains the implementation of an aggregate 
+** function that returns a string. Each time the function is stepped, 
+** it appends data to an internal buffer. When the aggregate is finalized,
+** the contents of the buffer are returned.
+**
+** The first time the aggregate is stepped the buffer is set to a copy
+** of the first argument. The second time and subsequent times it is
+** stepped a copy of the second argument is appended to the buffer, then
+** a copy of the first.
+**
+** Example:
+**
+**   INSERT INTO t1(a) VALUES('1');
+**   INSERT INTO t1(a) VALUES('2');
+**   INSERT INTO t1(a) VALUES('3');
+**   SELECT sj(a, ', ') FROM t1;
+**
+**     =>  "1, 2, 3"
+**
+*/
+struct StrBuffer {
+  char *zBuf;
+};
+typedef struct StrBuffer StrBuffer;
+static void joinFinalize(sqlite3_context *context){
+  StrBuffer *p;
+  p = (StrBuffer *)sqlite3_aggregate_context(context, sizeof(StrBuffer));
+  sqlite3_result_text(context, p->zBuf, -1, SQLITE_TRANSIENT);
+  sqlite3_free(p->zBuf);
+}
+static void joinStep(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  StrBuffer *p;
+  UNUSED_PARAMETER(argc);
+  p = (StrBuffer *)sqlite3_aggregate_context(context, sizeof(StrBuffer));
+  if( p->zBuf==0 ){
+    p->zBuf = sqlite3_mprintf("%s", sqlite3_value_text(argv[0]));
+  }else{
+    char *zTmp = p->zBuf;
+    p->zBuf = sqlite3_mprintf("%s%s%s", 
+        zTmp, sqlite3_value_text(argv[1]), sqlite3_value_text(argv[0])
+    );
+    sqlite3_free(zTmp);
+  }
+}
+
+/*
+**   dq(zString)
+**
+** This scalar function accepts a single argument and interprets it as
+** a text value. The return value is the argument enclosed in double
+** quotes. If any double quote characters are present in the argument, 
+** these are escaped.
+**
+**   dq('the raven "Nevermore."') == '"the raven ""Nevermore."""'
+*/
+static void doublequote(
+  sqlite3_context *context, 
+  int argc, 
+  sqlite3_value **argv
+){
+  int ii;
+  char *zOut;
+  char *zCsr;
+  const char *zIn = (const char *)sqlite3_value_text(argv[0]);
+  int nIn = sqlite3_value_bytes(argv[0]);
+
+  UNUSED_PARAMETER(argc);
+  zOut = sqlite3_malloc(nIn*2+3);
+  zCsr = zOut;
+  *zCsr++ = '"';
+  for(ii=0; ii<nIn; ii++){
+    *zCsr++ = zIn[ii];
+    if( zIn[ii]=='"' ){
+      *zCsr++ = '"';
+    }
+  }
+  *zCsr++ = '"';
+  *zCsr++ = '\0';
+
+  sqlite3_result_text(context, zOut, -1, SQLITE_TRANSIENT);
+  sqlite3_free(zOut);
+}
+
+/*
+**   multireplace(zString, zSearch1, zReplace1, ...)
+*/
+static void multireplace(
+  sqlite3_context *context, 
+  int argc, 
+  sqlite3_value **argv
+){
+  int i = 0;
+  char *zOut = 0;
+  int nOut = 0;
+  int nMalloc = 0;
+  const char *zIn = (const char *)sqlite3_value_text(argv[0]);
+  int nIn = sqlite3_value_bytes(argv[0]);
+
+  while( i<nIn ){
+    const char *zCopy = &zIn[i];
+    int nCopy = 1;
+    int nReplace = 1;
+    int j;
+    for(j=1; j<(argc-1); j+=2){
+      const char *z = (const char *)sqlite3_value_text(argv[j]);
+      int n = sqlite3_value_bytes(argv[j]);
+      if( n<=(nIn-i) && 0==strncmp(z, zCopy, n) ){
+        zCopy = (const char *)sqlite3_value_text(argv[j+1]);
+        nCopy = sqlite3_value_bytes(argv[j+1]);
+        nReplace = n;
+        break;
+      }
+    }
+    if( (nOut+nCopy)>nMalloc ){
+      char *zNew;
+      nMalloc = 16 + (nOut+nCopy)*2;
+      zNew = (char*)sqlite3_realloc(zOut, nMalloc);
+      if( zNew==0 ){
+        sqlite3_result_error_nomem(context);
+        return;
+      }else{
+        zOut = zNew;
+      }
+    }
+    assert( nMalloc>=(nOut+nCopy) );
+    memcpy(&zOut[nOut], zCopy, nCopy);
+    i += nReplace;
+    nOut += nCopy;
+  }
+
+  sqlite3_result_text(context, zOut, nOut, SQLITE_TRANSIENT);
+  sqlite3_free(zOut);
+}
+
+/*
+** A callback for sqlite3_exec() invokes the callback specified by the
+** GenfkeyCb structure pointed to by the void* passed as the first argument.
+*/
+static int invokeCallback(void *p, int nArg, char **azArg, char **azCol){
+  GenfkeyCb *pCb = (GenfkeyCb *)p;
+  UNUSED_PARAMETER(nArg);
+  UNUSED_PARAMETER(azCol);
+  return pCb->xData(pCb->pCtx, pCb->eType, azArg[0]);
+}
+
+static int detectSchemaProblem(
+  sqlite3 *db,                   /* Database connection */
+  const char *zMessage,          /* English language error message */
+  const char *zSql,              /* SQL statement to run */
+  GenfkeyCb *pCb
+){
+  sqlite3_stmt *pStmt;
+  int rc;
+  rc = sqlite3_prepare(db, zSql, -1, &pStmt, 0);
+  if( rc!=SQLITE_OK ){
+    return rc;
+  }
+  while( SQLITE_ROW==sqlite3_step(pStmt) ){
+    char *zDel;
+    int iFk = sqlite3_column_int(pStmt, 0);
+    const char *zTab = (const char *)sqlite3_column_text(pStmt, 1);
+    zDel = sqlite3_mprintf("Error in table %s: %s", zTab, zMessage);
+    rc = pCb->xData(pCb->pCtx, pCb->eType, zDel);
+    sqlite3_free(zDel);
+    if( rc!=SQLITE_OK ) return rc;
+    zDel = sqlite3_mprintf(
+        "DELETE FROM temp.fkey WHERE from_tbl = %Q AND fkid = %d"
+        , zTab, iFk
+    );
+    sqlite3_exec(db, zDel, 0, 0, 0);
+    sqlite3_free(zDel);
+  }
+  sqlite3_finalize(pStmt);
+  return SQLITE_OK;
+}
+
+/*
+** Create and populate temporary table "fkey".
+*/
+static int populateTempTable(sqlite3 *db, GenfkeyCb *pCallback){
+  int rc;
+  
+  rc = sqlite3_exec(db, 
+      "CREATE VIRTUAL TABLE temp.v_fkey USING schema(foreign_key_list);"
+      "CREATE VIRTUAL TABLE temp.v_col USING schema(table_info);"
+      "CREATE VIRTUAL TABLE temp.v_idxlist USING schema(index_list);"
+      "CREATE VIRTUAL TABLE temp.v_idxinfo USING schema(index_info);"
+      "CREATE VIRTUAL TABLE temp.v_triggers USING schema(trigger_list);"
+      "CREATE TABLE temp.fkey AS "
+        "SELECT from_tbl, to_tbl, fkid, from_col, to_col, on_update, on_delete "
+        "FROM temp.v_fkey WHERE database = 'main';"
+      , 0, 0, 0
+  );
+  if( rc!=SQLITE_OK ) return rc;
+
+  rc = detectSchemaProblem(db, "foreign key columns do not exist",
+    "SELECT fkid, from_tbl "
+    "FROM temp.fkey "
+    "WHERE to_col IS NOT NULL AND NOT EXISTS (SELECT 1 "
+        "FROM temp.v_col WHERE tablename=to_tbl AND name==to_col"
+    ")", pCallback
+  );
+  if( rc!=SQLITE_OK ) return rc;
+
+  /* At this point the temp.fkey table is mostly populated. If any foreign
+  ** keys were specified so that they implicitly refer to they primary
+  ** key of the parent table, the "to_col" values of the temp.fkey rows
+  ** are still set to NULL.
+  **
+  ** This is easily fixed for single column primary keys, but not for
+  ** composites. With a composite primary key, there is no way to reliably
+  ** query sqlite for the order in which the columns that make up the
+  ** composite key were declared i.e. there is no way to tell if the
+  ** schema actually contains "PRIMARY KEY(a, b)" or "PRIMARY KEY(b, a)".
+  ** Therefore, this case is not handled. The following function call
+  ** detects instances of this case.
+  */
+  rc = detectSchemaProblem(db, "implicit mapping to composite primary key",
+    "SELECT fkid, from_tbl "
+    "FROM temp.fkey "
+    "WHERE to_col IS NULL "
+    "GROUP BY fkid, from_tbl HAVING count(*) > 1", pCallback
+  );
+  if( rc!=SQLITE_OK ) return rc;
+
+  /* Detect attempts to implicitly map to the primary key of a table 
+  ** that has no primary key column.
+  */
+  rc = detectSchemaProblem(db, "implicit mapping to non-existant primary key",
+    "SELECT fkid, from_tbl "
+    "FROM temp.fkey "
+    "WHERE to_col IS NULL AND NOT EXISTS "
+      "(SELECT 1 FROM temp.v_col WHERE pk AND tablename = temp.fkey.to_tbl)"
+    , pCallback
+  );
+  if( rc!=SQLITE_OK ) return rc;
+
+  /* Fix all the implicit primary key mappings in the temp.fkey table. */
+  rc = sqlite3_exec(db, 
+    "UPDATE temp.fkey SET to_col = "
+      "(SELECT name FROM temp.v_col WHERE pk AND tablename=temp.fkey.to_tbl)"
+    " WHERE to_col IS NULL;"
+    , 0, 0, 0
+  );
+  if( rc!=SQLITE_OK ) return rc;
+
+  /* Now check that all all parent keys are either primary keys or 
+  ** subject to a unique constraint.
+  */
+  rc = sqlite3_exec(db, 
+    "CREATE TABLE temp.idx2 AS SELECT "
+      "il.tablename AS tablename,"
+      "ii.indexname AS indexname,"
+      "ii.name AS col "
+      "FROM temp.v_idxlist AS il, temp.v_idxinfo AS ii "
+      "WHERE il.isunique AND il.database='main' AND ii.indexname = il.name;"
+    "INSERT INTO temp.idx2 "
+      "SELECT tablename, 'pk', name FROM temp.v_col WHERE pk;"
+
+    "CREATE TABLE temp.idx AS SELECT "
+      "tablename, indexname, sj(dq(col),',') AS cols "
+      "FROM (SELECT * FROM temp.idx2 ORDER BY col) " 
+      "GROUP BY tablename, indexname;"
+
+    "CREATE TABLE temp.fkey2 AS SELECT "
+        "fkid, from_tbl, to_tbl, sj(dq(to_col),',') AS cols "
+        "FROM (SELECT * FROM temp.fkey ORDER BY to_col) " 
+        "GROUP BY fkid, from_tbl;"
+
+    "CREATE TABLE temp.triggers AS SELECT "
+        "triggername FROM temp.v_triggers WHERE database='main' AND "
+        "triggername LIKE 'genfkey%';"
+    , 0, 0, 0
+  );
+  if( rc!=SQLITE_OK ) return rc;
+  rc = detectSchemaProblem(db, "foreign key is not unique",
+    "SELECT fkid, from_tbl "
+    "FROM temp.fkey2 "
+    "WHERE NOT EXISTS (SELECT 1 "
+        "FROM temp.idx WHERE tablename=to_tbl AND fkey2.cols==idx.cols"
+    ")", pCallback
+  );
+  if( rc!=SQLITE_OK ) return rc;
+
+  return rc;
+}
+
+#define GENFKEY_ERROR         1
+#define GENFKEY_DROPTRIGGER   2
+#define GENFKEY_CREATETRIGGER 3
+static int genfkey_create_triggers(
+  sqlite3 *sdb,                        /* Connection to read schema from */
+  const char *zDb,                     /* Name of db to read ("main", "temp") */
+  void *pCtx,                          /* Context pointer to pass to xData */
+  int (*xData)(void *, int, const char *)
+){
+  const char *zSql =
+    "SELECT multireplace('"
+
+      "-- Triggers for foreign key mapping:\n"
+      "--\n"
+      "--     /from_readable/ REFERENCES /to_readable/\n"
+      "--     on delete /on_delete/\n"
+      "--     on update /on_update/\n"
+      "--\n"
+
+      /* The "BEFORE INSERT ON <referencing>" trigger. This trigger's job is to
+      ** throw an exception if the user tries to insert a row into the
+      ** referencing table for which there is no corresponding row in
+      ** the referenced table.
+      */
+      "CREATE TRIGGER /name/_insert_referencing BEFORE INSERT ON /tbl/ WHEN \n"
+      "    /key_notnull/ AND NOT EXISTS (SELECT 1 FROM /ref/ WHERE /cond1/)\n" 
+      "BEGIN\n"
+        "  SELECT RAISE(ABORT, ''constraint failed'');\n"
+      "END;\n"
+
+      /* The "BEFORE UPDATE ON <referencing>" trigger. This trigger's job 
+      ** is to throw an exception if the user tries to update a row in the
+      ** referencing table causing it to correspond to no row in the
+      ** referenced table.
+      */
+      "CREATE TRIGGER /name/_update_referencing BEFORE\n"
+      "    UPDATE OF /rkey_list/ ON /tbl/ WHEN \n"
+      "    /key_notnull/ AND \n"
+      "    NOT EXISTS (SELECT 1 FROM /ref/ WHERE /cond1/)\n" 
+      "BEGIN\n"
+        "  SELECT RAISE(ABORT, ''constraint failed'');\n"
+      "END;\n"
+
+
+      /* The "BEFORE DELETE ON <referenced>" trigger. This trigger's job 
+      ** is to detect when a row is deleted from the referenced table to 
+      ** which rows in the referencing table correspond. The action taken
+      ** depends on the value of the 'ON DELETE' clause.
+      */
+      "CREATE TRIGGER /name/_delete_referenced BEFORE DELETE ON /ref/ WHEN\n"
+      "    EXISTS (SELECT 1 FROM /tbl/ WHERE /cond2/)\n"
+      "BEGIN\n"
+      "  /delete_action/\n"
+      "END;\n"
+
+      /* The "AFTER UPDATE ON <referenced>" trigger. This trigger's job 
+      ** is to detect when the key columns of a row in the referenced table 
+      ** to which one or more rows in the referencing table correspond are
+      ** updated. The action taken depends on the value of the 'ON UPDATE' 
+      ** clause.
+      */
+      "CREATE TRIGGER /name/_update_referenced AFTER\n"
+      "    UPDATE OF /fkey_list/ ON /ref/ WHEN \n"
+      "    EXISTS (SELECT 1 FROM /tbl/ WHERE /cond2/)\n"
+      "BEGIN\n"
+      "  /update_action/\n"
+      "END;\n"
+    "'"
+
+    /* These are used in the SQL comment written above each set of triggers */
+    ", '/from_readable/',  from_tbl || '(' || sj(from_col, ', ') || ')'"
+    ", '/to_readable/',    to_tbl || '(' || sj(to_col, ', ') || ')'"
+    ", '/on_delete/', on_delete"
+    ", '/on_update/', on_update"
+
+    ", '/name/',   'genfkey' || min(rowid)"
+    ", '/tbl/',    dq(from_tbl)"
+    ", '/ref/',    dq(to_tbl)"
+    ", '/key_notnull/', sj('new.' || dq(from_col) || ' IS NOT NULL', ' AND ')"
+
+    ", '/fkey_list/', sj(dq(to_col), ', ')"
+    ", '/rkey_list/', sj(dq(from_col), ', ')"
+
+    ", '/cond1/',  sj(multireplace('new./from/ == /to/'"
+                   ", '/from/', dq(from_col)"
+                   ", '/to/',   dq(to_col)"
+                   "), ' AND ')"
+    ", '/cond2/',  sj(multireplace('old./to/ == /from/'"
+                   ", '/from/', dq(from_col)"
+                   ", '/to/',   dq(to_col)"
+                   "), ' AND ')"
+
+    ", '/update_action/', CASE on_update "
+      "WHEN 'SET NULL' THEN "
+        "multireplace('UPDATE /tbl/ SET /setlist/ WHERE /where/;' "
+        ", '/setlist/', sj(dq(from_col)||' = NULL',', ')"
+        ", '/tbl/',     dq(from_tbl)"
+        ", '/where/',   sj(dq(from_col)||' = old.'||dq(to_col),' AND ')"
+        ")"
+      "WHEN 'CASCADE' THEN "
+        "multireplace('UPDATE /tbl/ SET /setlist/ WHERE /where/;' "
+        ", '/setlist/', sj(dq(from_col)||' = new.'||dq(to_col),', ')"
+        ", '/tbl/',     dq(from_tbl)"
+        ", '/where/',   sj(dq(from_col)||' = old.'||dq(to_col),' AND ')"
+        ")"
+      "ELSE "
+      "  'SELECT RAISE(ABORT, ''constraint failed'');'"
+      "END "
+
+    ", '/delete_action/', CASE on_delete "
+      "WHEN 'SET NULL' THEN "
+        "multireplace('UPDATE /tbl/ SET /setlist/ WHERE /where/;' "
+        ", '/setlist/', sj(dq(from_col)||' = NULL',', ')"
+        ", '/tbl/',     dq(from_tbl)"
+        ", '/where/',   sj(dq(from_col)||' = old.'||dq(to_col),' AND ')"
+        ")"
+      "WHEN 'CASCADE' THEN "
+        "multireplace('DELETE FROM /tbl/ WHERE /where/;' "
+        ", '/tbl/',     dq(from_tbl)"
+        ", '/where/',   sj(dq(from_col)||' = old.'||dq(to_col),' AND ')"
+        ")"
+      "ELSE "
+      "  'SELECT RAISE(ABORT, ''constraint failed'');'"
+      "END "
+
+    ") FROM temp.fkey "
+    "GROUP BY from_tbl, fkid"
+  ;
+
+  int rc;
+  const int enc = SQLITE_UTF8;
+  sqlite3 *db = 0;
+
+  GenfkeyCb cb;
+  cb.xData = xData;
+  cb.pCtx = pCtx;
+
+  UNUSED_PARAMETER(zDb);
+
+  /* Open the working database handle. */
+  rc = sqlite3_open(":memory:", &db);
+  if( rc!=SQLITE_OK ) goto genfkey_exit;
+
+  /* Create the special scalar and aggregate functions used by this program. */
+  sqlite3_create_function(db, "dq", 1, enc, 0, doublequote, 0, 0);
+  sqlite3_create_function(db, "multireplace", -1, enc, db, multireplace, 0, 0);
+  sqlite3_create_function(db, "sj", 2, enc, 0, 0, joinStep, joinFinalize);
+
+  /* Install the "schema" virtual table module */
+  installSchemaModule(db, sdb);
+
+  /* Create and populate a temp table with the information required to
+  ** build the foreign key triggers. See function populateTempTable()
+  ** for details.
+  */
+  cb.eType = GENFKEY_ERROR;
+  rc = populateTempTable(db, &cb);
+  if( rc!=SQLITE_OK ) goto genfkey_exit;
+
+  /* Unless the --no-drop option was specified, generate DROP TRIGGER
+  ** statements to drop any triggers in the database generated by a
+  ** previous run of this program.
+  */
+  cb.eType = GENFKEY_DROPTRIGGER;
+  rc = sqlite3_exec(db, 
+    "SELECT 'DROP TRIGGER main.' || dq(triggername) || ';' FROM triggers"
+    ,invokeCallback, (void *)&cb, 0
+  );
+  if( rc!=SQLITE_OK ) goto genfkey_exit;
+
+  /* Run the main query to create the trigger definitions. */
+  cb.eType = GENFKEY_CREATETRIGGER;
+  rc = sqlite3_exec(db, zSql, invokeCallback, (void *)&cb, 0);
+  if( rc!=SQLITE_OK ) goto genfkey_exit;
+
+genfkey_exit:
+  sqlite3_close(db);
+  return rc;
+}
+
+
+#endif
+/* End genfkey logic. */
+/*************************************************************************/
+/*************************************************************************/
+
+/*
+** If the following flag is set, then command execution stops
+** at an error if we are not interactive.
+*/
+static int bail_on_error = 0;
+
+/*
+** Threat stdin as an interactive input if the following variable
+** is true.  Otherwise, assume stdin is connected to a file or pipe.
+*/
+static int stdin_is_interactive = 1;
+
+/*
+** The following is the open SQLite database.  We make a pointer
+** to this database a static variable so that it can be accessed
+** by the SIGINT handler to interrupt database processing.
+*/
+static sqlite3 *db = 0;
+
+/*
+** True if an interrupt (Control-C) has been received.
+*/
+static volatile int seenInterrupt = 0;
+
+/*
+** This is the name of our program. It is set in main(), used
+** in a number of other places, mostly for error messages.
+*/
+static char *Argv0;
+
+/*
+** Prompt strings. Initialized in main. Settable with
+**   .prompt main continue
+*/
+static char mainPrompt[20];     /* First line prompt. default: "sqlite> "*/
+static char continuePrompt[20]; /* Continuation prompt. default: "   ...> " */
+
+/*
+** Write I/O traces to the following stream.
+*/
+#ifdef SQLITE_ENABLE_IOTRACE
+static FILE *iotrace = 0;
+#endif
+
+/*
+** This routine works like printf in that its first argument is a
+** format string and subsequent arguments are values to be substituted
+** in place of % fields.  The result of formatting this string
+** is written to iotrace.
+*/
+#ifdef SQLITE_ENABLE_IOTRACE
+static void iotracePrintf(const char *zFormat, ...){
+  va_list ap;
+  char *z;
+  if( iotrace==0 ) return;
+  va_start(ap, zFormat);
+  z = sqlite3_vmprintf(zFormat, ap);
+  va_end(ap);
+  fprintf(iotrace, "%s", z);
+  sqlite3_free(z);
+}
+#endif
+
+
+/*
+** Determines if a string is a number of not.
+*/
+static int isNumber(const char *z, int *realnum){
+  if( *z=='-' || *z=='+' ) z++;
+  if( !isdigit(*z) ){
+    return 0;
+  }
+  z++;
+  if( realnum ) *realnum = 0;
+  while( isdigit(*z) ){ z++; }
+  if( *z=='.' ){
+    z++;
+    if( !isdigit(*z) ) return 0;
+    while( isdigit(*z) ){ z++; }
+    if( realnum ) *realnum = 1;
+  }
+  if( *z=='e' || *z=='E' ){
+    z++;
+    if( *z=='+' || *z=='-' ) z++;
+    if( !isdigit(*z) ) return 0;
+    while( isdigit(*z) ){ z++; }
+    if( realnum ) *realnum = 1;
+  }
+  return *z==0;
+}
+
+/*
+** A global char* and an SQL function to access its current value 
+** from within an SQL statement. This program used to use the 
+** sqlite_exec_printf() API to substitue a string into an SQL statement.
+** The correct way to do this with sqlite3 is to use the bind API, but
+** since the shell is built around the callback paradigm it would be a lot
+** of work. Instead just use this hack, which is quite harmless.
+*/
+static const char *zShellStatic = 0;
+static void shellstaticFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  assert( 0==argc );
+  assert( zShellStatic );
+  UNUSED_PARAMETER(argc);
+  UNUSED_PARAMETER(argv);
+  sqlite3_result_text(context, zShellStatic, -1, SQLITE_STATIC);
+}
+
+
+/*
+** This routine reads a line of text from FILE in, stores
+** the text in memory obtained from malloc() and returns a pointer
+** to the text.  NULL is returned at end of file, or if malloc()
+** fails.
+**
+** The interface is like "readline" but no command-line editing
+** is done.
+*/
+static char *local_getline(char *zPrompt, FILE *in){
+  char *zLine;
+  int nLine;
+  int n;
+  int eol;
+
+  if( zPrompt && *zPrompt ){
+    printf("%s",zPrompt);
+    fflush(stdout);
+  }
+  nLine = 100;
+  zLine = malloc( nLine );
+  if( zLine==0 ) return 0;
+  n = 0;
+  eol = 0;
+  while( !eol ){
+    if( n+100>nLine ){
+      nLine = nLine*2 + 100;
+      zLine = realloc(zLine, nLine);
+      if( zLine==0 ) return 0;
+    }
+    if( fgets(&zLine[n], nLine - n, in)==0 ){
+      if( n==0 ){
+        free(zLine);
+        return 0;
+      }
+      zLine[n] = 0;
+      eol = 1;
+      break;
+    }
+    while( zLine[n] ){ n++; }
+    if( n>0 && zLine[n-1]=='\n' ){
+      n--;
+      if( n>0 && zLine[n-1]=='\r' ) n--;
+      zLine[n] = 0;
+      eol = 1;
+    }
+  }
+  zLine = realloc( zLine, n+1 );
+  return zLine;
+}
+
+/*
+** Retrieve a single line of input text.
+**
+** zPrior is a string of prior text retrieved.  If not the empty
+** string, then issue a continuation prompt.
+*/
+static char *one_input_line(const char *zPrior, FILE *in){
+  char *zPrompt;
+  char *zResult;
+  if( in!=0 ){
+    return local_getline(0, in);
+  }
+  if( zPrior && zPrior[0] ){
+    zPrompt = continuePrompt;
+  }else{
+    zPrompt = mainPrompt;
+  }
+  zResult = readline(zPrompt);
+#if defined(HAVE_READLINE) && HAVE_READLINE==1
+  if( zResult && *zResult ) add_history(zResult);
+#endif
+  return zResult;
+}
+
+struct previous_mode_data {
+  int valid;        /* Is there legit data in here? */
+  int mode;
+  int showHeader;
+  int colWidth[100];
+};
+
+/*
+** An pointer to an instance of this structure is passed from
+** the main program to the callback.  This is used to communicate
+** state and mode information.
+*/
+struct callback_data {
+  sqlite3 *db;           /* The database */
+  int echoOn;            /* True to echo input commands */
+  int cnt;               /* Number of records displayed so far */
+  FILE *out;             /* Write results here */
+  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*/
+  int actualWidth[100];  /* Actual width of each column */
+  char nullvalue[20];    /* The text to print when a NULL comes back from
+                         ** the database */
+  struct previous_mode_data explainPrev;
+                         /* Holds the mode information just before
+                         ** .explain ON */
+  char outfile[FILENAME_MAX]; /* Filename for *out */
+  const char *zDbFilename;    /* name of the database file */
+  sqlite3_stmt *pStmt;   /* Current statement if any. */
+  FILE *pLog;            /* Write log output here */
+};
+
+/*
+** These are the allowed modes.
+*/
+#define MODE_Line     0  /* One column per line.  Blank line between records */
+#define MODE_Column   1  /* One record per line in neat columns */
+#define MODE_List     2  /* One record per line with a separator */
+#define MODE_Semi     3  /* Same as MODE_List but append ";" to each line */
+#define MODE_Html     4  /* Generate an XHTML table */
+#define MODE_Insert   5  /* Generate SQL "insert" statements */
+#define MODE_Tcl      6  /* Generate ANSI-C or TCL quoted elements */
+#define MODE_Csv      7  /* Quote strings, numbers are plain */
+#define MODE_Explain  8  /* Like MODE_Column, but do not truncate data */
+
+static const char *modeDescr[] = {
+  "line",
+  "column",
+  "list",
+  "semi",
+  "html",
+  "insert",
+  "tcl",
+  "csv",
+  "explain",
+};
+
+/*
+** Number of elements in an array
+*/
+#define ArraySize(X)  (int)(sizeof(X)/sizeof(X[0]))
+
+/*
+** Compute a string length that is limited to what can be stored in
+** lower 30 bits of a 32-bit signed integer.
+*/
+static int strlen30(const char *z){
+  const char *z2 = z;
+  while( *z2 ){ z2++; }
+  return 0x3fffffff & (int)(z2 - z);
+}
+
+/*
+** A callback for the sqlite3_log() interface.
+*/
+static void shellLog(void *pArg, int iErrCode, const char *zMsg){
+  struct callback_data *p = (struct callback_data*)pArg;
+  if( p->pLog==0 ) return;
+  fprintf(p->pLog, "(%d) %s\n", iErrCode, zMsg);
+  fflush(p->pLog);
+}
+
+/*
+** Output the given string as a hex-encoded blob (eg. X'1234' )
+*/
+static void output_hex_blob(FILE *out, const void *pBlob, int nBlob){
+  int i;
+  char *zBlob = (char *)pBlob;
+  fprintf(out,"X'");
+  for(i=0; i<nBlob; i++){ fprintf(out,"%02x",zBlob[i]); }
+  fprintf(out,"'");
+}
+
+/*
+** Output the given string as a quoted string using SQL quoting conventions.
+*/
+static void output_quoted_string(FILE *out, const char *z){
+  int i;
+  int nSingle = 0;
+  for(i=0; z[i]; i++){
+    if( z[i]=='\'' ) nSingle++;
+  }
+  if( nSingle==0 ){
+    fprintf(out,"'%s'",z);
+  }else{
+    fprintf(out,"'");
+    while( *z ){
+      for(i=0; z[i] && z[i]!='\''; i++){}
+      if( i==0 ){
+        fprintf(out,"''");
+        z++;
+      }else if( z[i]=='\'' ){
+        fprintf(out,"%.*s''",i,z);
+        z += i+1;
+      }else{
+        fprintf(out,"%s",z);
+        break;
+      }
+    }
+    fprintf(out,"'");
+  }
+}
+
+/*
+** Output the given string as a quoted according to C or TCL quoting rules.
+*/
+static void output_c_string(FILE *out, const char *z){
+  unsigned int c;
+  fputc('"', out);
+  while( (c = *(z++))!=0 ){
+    if( c=='\\' ){
+      fputc(c, out);
+      fputc(c, out);
+    }else if( c=='\t' ){
+      fputc('\\', out);
+      fputc('t', out);
+    }else if( c=='\n' ){
+      fputc('\\', out);
+      fputc('n', out);
+    }else if( c=='\r' ){
+      fputc('\\', out);
+      fputc('r', out);
+    }else if( !isprint(c) ){
+      fprintf(out, "\\%03o", c&0xff);
+    }else{
+      fputc(c, out);
+    }
+  }
+  fputc('"', out);
+}
+
+/*
+** Output the given string with characters that are special to
+** HTML escaped.
+*/
+static void output_html_string(FILE *out, const char *z){
+  int i;
+  while( *z ){
+    for(i=0;   z[i] 
+            && z[i]!='<' 
+            && z[i]!='&' 
+            && z[i]!='>' 
+            && z[i]!='\"' 
+            && z[i]!='\'';
+        i++){}
+    if( i>0 ){
+      fprintf(out,"%.*s",i,z);
+    }
+    if( z[i]=='<' ){
+      fprintf(out,"&lt;");
+    }else if( z[i]=='&' ){
+      fprintf(out,"&amp;");
+    }else if( z[i]=='>' ){
+      fprintf(out,"&gt;");
+    }else if( z[i]=='\"' ){
+      fprintf(out,"&quot;");
+    }else if( z[i]=='\'' ){
+      fprintf(out,"&#39;");
+    }else{
+      break;
+    }
+    z += i + 1;
+  }
+}
+
+/*
+** If a field contains any character identified by a 1 in the following
+** array, then the string must be quoted for CSV.
+*/
+static const char needCsvQuote[] = {
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
+  1, 0, 1, 0, 0, 0, 0, 1,   0, 0, 0, 0, 0, 0, 0, 0, 
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0, 
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0, 
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0, 
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 0, 
+  0, 0, 0, 0, 0, 0, 0, 0,   0, 0, 0, 0, 0, 0, 0, 1, 
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
+  1, 1, 1, 1, 1, 1, 1, 1,   1, 1, 1, 1, 1, 1, 1, 1,   
+};
+
+/*
+** Output a single term of CSV.  Actually, p->separator is used for
+** the separator, which may or may not be a comma.  p->nullvalue is
+** the null value.  Strings are quoted using ANSI-C rules.  Numbers
+** appear outside of quotes.
+*/
+static void output_csv(struct callback_data *p, const char *z, int bSep){
+  FILE *out = p->out;
+  if( z==0 ){
+    fprintf(out,"%s",p->nullvalue);
+  }else{
+    int i;
+    int nSep = strlen30(p->separator);
+    for(i=0; z[i]; i++){
+      if( needCsvQuote[((unsigned char*)z)[i]] 
+         || (z[i]==p->separator[0] && 
+             (nSep==1 || memcmp(z, p->separator, nSep)==0)) ){
+        i = 0;
+        break;
+      }
+    }
+    if( i==0 ){
+      putc('"', out);
+      for(i=0; z[i]; i++){
+        if( z[i]=='"' ) putc('"', out);
+        putc(z[i], out);
+      }
+      putc('"', out);
+    }else{
+      fprintf(out, "%s", z);
+    }
+  }
+  if( bSep ){
+    fprintf(p->out, "%s", p->separator);
+  }
+}
+
+#ifdef SIGINT
+/*
+** This routine runs when the user presses Ctrl-C
+*/
+static void interrupt_handler(int NotUsed){
+  UNUSED_PARAMETER(NotUsed);
+  seenInterrupt = 1;
+  if( db ) sqlite3_interrupt(db);
+}
+#endif
+
+/*
+** This is the callback routine that the shell
+** invokes for each row of a query result.
+*/
+static int shell_callback(void *pArg, int nArg, char **azArg, char **azCol, int *aiType){
+  int i;
+  struct callback_data *p = (struct callback_data*)pArg;
+
+  if( p->echoOn && p->cnt==0  && p->pStmt){
+    printf("%s\n", sqlite3_sql(p->pStmt));
+  }
+
+  switch( p->mode ){
+    case MODE_Line: {
+      int w = 5;
+      if( azArg==0 ) break;
+      for(i=0; i<nArg; i++){
+        int len = strlen30(azCol[i] ? azCol[i] : "");
+        if( len>w ) w = len;
+      }
+      if( p->cnt++>0 ) fprintf(p->out,"\n");
+      for(i=0; i<nArg; i++){
+        fprintf(p->out,"%*s = %s\n", w, azCol[i],
+                azArg[i] ? azArg[i] : p->nullvalue);
+      }
+      break;
+    }
+    case MODE_Explain:
+    case MODE_Column: {
+      if( p->cnt++==0 ){
+        for(i=0; i<nArg; i++){
+          int w, n;
+          if( i<ArraySize(p->colWidth) ){
+            w = p->colWidth[i];
+          }else{
+            w = 0;
+          }
+          if( w<=0 ){
+            w = strlen30(azCol[i] ? azCol[i] : "");
+            if( w<10 ) w = 10;
+            n = strlen30(azArg && azArg[i] ? azArg[i] : p->nullvalue);
+            if( w<n ) w = n;
+          }
+          if( i<ArraySize(p->actualWidth) ){
+            p->actualWidth[i] = w;
+          }
+          if( p->showHeader ){
+            fprintf(p->out,"%-*.*s%s",w,w,azCol[i], i==nArg-1 ? "\n": "  ");
+          }
+        }
+        if( p->showHeader ){
+          for(i=0; i<nArg; i++){
+            int w;
+            if( i<ArraySize(p->actualWidth) ){
+               w = p->actualWidth[i];
+            }else{
+               w = 10;
+            }
+            fprintf(p->out,"%-*.*s%s",w,w,"-----------------------------------"
+                   "----------------------------------------------------------",
+                    i==nArg-1 ? "\n": "  ");
+          }
+        }
+      }
+      if( azArg==0 ) break;
+      for(i=0; i<nArg; i++){
+        int w;
+        if( i<ArraySize(p->actualWidth) ){
+           w = p->actualWidth[i];
+        }else{
+           w = 10;
+        }
+        if( p->mode==MODE_Explain && azArg[i] && 
+           strlen30(azArg[i])>w ){
+          w = strlen30(azArg[i]);
+        }
+        fprintf(p->out,"%-*.*s%s",w,w,
+            azArg[i] ? azArg[i] : p->nullvalue, i==nArg-1 ? "\n": "  ");
+      }
+      break;
+    }
+    case MODE_Semi:
+    case MODE_List: {
+      if( p->cnt++==0 && p->showHeader ){
+        for(i=0; i<nArg; i++){
+          fprintf(p->out,"%s%s",azCol[i], i==nArg-1 ? "\n" : p->separator);
+        }
+      }
+      if( azArg==0 ) break;
+      for(i=0; i<nArg; i++){
+        char *z = azArg[i];
+        if( z==0 ) z = p->nullvalue;
+        fprintf(p->out, "%s", z);
+        if( i<nArg-1 ){
+          fprintf(p->out, "%s", p->separator);
+        }else if( p->mode==MODE_Semi ){
+          fprintf(p->out, ";\n");
+        }else{
+          fprintf(p->out, "\n");
+        }
+      }
+      break;
+    }
+    case MODE_Html: {
+      if( p->cnt++==0 && p->showHeader ){
+        fprintf(p->out,"<TR>");
+        for(i=0; i<nArg; i++){
+          fprintf(p->out,"<TH>");
+          output_html_string(p->out, azCol[i]);
+          fprintf(p->out,"</TH>\n");
+        }
+        fprintf(p->out,"</TR>\n");
+      }
+      if( azArg==0 ) break;
+      fprintf(p->out,"<TR>");
+      for(i=0; i<nArg; i++){
+        fprintf(p->out,"<TD>");
+        output_html_string(p->out, azArg[i] ? azArg[i] : p->nullvalue);
+        fprintf(p->out,"</TD>\n");
+      }
+      fprintf(p->out,"</TR>\n");
+      break;
+    }
+    case MODE_Tcl: {
+      if( p->cnt++==0 && p->showHeader ){
+        for(i=0; i<nArg; i++){
+          output_c_string(p->out,azCol[i] ? azCol[i] : "");
+          fprintf(p->out, "%s", p->separator);
+        }
+        fprintf(p->out,"\n");
+      }
+      if( azArg==0 ) break;
+      for(i=0; i<nArg; i++){
+        output_c_string(p->out, azArg[i] ? azArg[i] : p->nullvalue);
+        fprintf(p->out, "%s", p->separator);
+      }
+      fprintf(p->out,"\n");
+      break;
+    }
+    case MODE_Csv: {
+      if( p->cnt++==0 && p->showHeader ){
+        for(i=0; i<nArg; i++){
+          output_csv(p, azCol[i] ? azCol[i] : "", i<nArg-1);
+        }
+        fprintf(p->out,"\n");
+      }
+      if( azArg==0 ) break;
+      for(i=0; i<nArg; i++){
+        output_csv(p, azArg[i], i<nArg-1);
+      }
+      fprintf(p->out,"\n");
+      break;
+    }
+    case MODE_Insert: {
+      p->cnt++;
+      if( azArg==0 ) break;
+      fprintf(p->out,"INSERT INTO %s VALUES(",p->zDestTable);
+      for(i=0; i<nArg; i++){
+        char *zSep = i>0 ? ",": "";
+        if( (azArg[i]==0) || (aiType && aiType[i]==SQLITE_NULL) ){
+          fprintf(p->out,"%sNULL",zSep);
+        }else if( aiType && aiType[i]==SQLITE_TEXT ){
+          if( zSep[0] ) fprintf(p->out,"%s",zSep);
+          output_quoted_string(p->out, azArg[i]);
+        }else if( aiType && (aiType[i]==SQLITE_INTEGER || aiType[i]==SQLITE_FLOAT) ){
+          fprintf(p->out,"%s%s",zSep, azArg[i]);
+        }else if( aiType && aiType[i]==SQLITE_BLOB && p->pStmt ){
+          const void *pBlob = sqlite3_column_blob(p->pStmt, i);
+          int nBlob = sqlite3_column_bytes(p->pStmt, i);
+          if( zSep[0] ) fprintf(p->out,"%s",zSep);
+          output_hex_blob(p->out, pBlob, nBlob);
+        }else if( isNumber(azArg[i], 0) ){
+          fprintf(p->out,"%s%s",zSep, azArg[i]);
+        }else{
+          if( zSep[0] ) fprintf(p->out,"%s",zSep);
+          output_quoted_string(p->out, azArg[i]);
+        }
+      }
+      fprintf(p->out,");\n");
+      break;
+    }
+  }
+  return 0;
+}
+
+/*
+** This is the callback routine that the SQLite library
+** invokes for each row of a query result.
+*/
+static int callback(void *pArg, int nArg, char **azArg, char **azCol){
+  /* since we don't have type info, call the shell_callback with a NULL value */
+  return shell_callback(pArg, nArg, azArg, azCol, NULL);
+}
+
+/*
+** Set the destination table field of the callback_data structure to
+** the name of the table given.  Escape any quote characters in the
+** table name.
+*/
+static void set_table_name(struct callback_data *p, const char *zName){
+  int i, n;
+  int needQuote;
+  char *z;
+
+  if( p->zDestTable ){
+    free(p->zDestTable);
+    p->zDestTable = 0;
+  }
+  if( zName==0 ) return;
+  needQuote = !isalpha((unsigned char)*zName) && *zName!='_';
+  for(i=n=0; zName[i]; i++, n++){
+    if( !isalnum((unsigned char)zName[i]) && zName[i]!='_' ){
+      needQuote = 1;
+      if( zName[i]=='\'' ) n++;
+    }
+  }
+  if( needQuote ) n += 2;
+  z = p->zDestTable = malloc( n+1 );
+  if( z==0 ){
+    fprintf(stderr,"Error: out of memory\n");
+    exit(1);
+  }
+  n = 0;
+  if( needQuote ) z[n++] = '\'';
+  for(i=0; zName[i]; i++){
+    z[n++] = zName[i];
+    if( zName[i]=='\'' ) z[n++] = '\'';
+  }
+  if( needQuote ) z[n++] = '\'';
+  z[n] = 0;
+}
+
+/* zIn is either a pointer to a NULL-terminated string in memory obtained
+** from malloc(), or a NULL pointer. The string pointed to by zAppend is
+** added to zIn, and the result returned in memory obtained from malloc().
+** zIn, if it was not NULL, is freed.
+**
+** If the third argument, quote, is not '\0', then it is used as a 
+** quote character for zAppend.
+*/
+static char *appendText(char *zIn, char const *zAppend, char quote){
+  int len;
+  int i;
+  int nAppend = strlen30(zAppend);
+  int nIn = (zIn?strlen30(zIn):0);
+
+  len = nAppend+nIn+1;
+  if( quote ){
+    len += 2;
+    for(i=0; i<nAppend; i++){
+      if( zAppend[i]==quote ) len++;
+    }
+  }
+
+  zIn = (char *)realloc(zIn, len);
+  if( !zIn ){
+    return 0;
+  }
+
+  if( quote ){
+    char *zCsr = &zIn[nIn];
+    *zCsr++ = quote;
+    for(i=0; i<nAppend; i++){
+      *zCsr++ = zAppend[i];
+      if( zAppend[i]==quote ) *zCsr++ = quote;
+    }
+    *zCsr++ = quote;
+    *zCsr++ = '\0';
+    assert( (zCsr-zIn)==len );
+  }else{
+    memcpy(&zIn[nIn], zAppend, nAppend);
+    zIn[len-1] = '\0';
+  }
+
+  return zIn;
+}
+
+
+/*
+** Execute a query statement that has a single result column.  Print
+** that result column on a line by itself with a semicolon terminator.
+**
+** This is used, for example, to show the schema of the database by
+** querying the SQLITE_MASTER table.
+*/
+static int run_table_dump_query(
+  FILE *out,              /* Send output here */
+  sqlite3 *db,            /* Database to query */
+  const char *zSelect,    /* SELECT statement to extract content */
+  const char *zFirstRow   /* Print before first row, if not NULL */
+){
+  sqlite3_stmt *pSelect;
+  int rc;
+  rc = sqlite3_prepare(db, zSelect, -1, &pSelect, 0);
+  if( rc!=SQLITE_OK || !pSelect ){
+    return rc;
+  }
+  rc = sqlite3_step(pSelect);
+  while( rc==SQLITE_ROW ){
+    if( zFirstRow ){
+      fprintf(out, "%s", zFirstRow);
+      zFirstRow = 0;
+    }
+    fprintf(out, "%s;\n", sqlite3_column_text(pSelect, 0));
+    rc = sqlite3_step(pSelect);
+  }
+  return sqlite3_finalize(pSelect);
+}
+
+/*
+** Allocate space and save off current error string.
+*/
+static char *save_err_msg(
+  sqlite3 *db            /* Database to query */
+){
+  int nErrMsg = 1+strlen30(sqlite3_errmsg(db));
+  char *zErrMsg = sqlite3_malloc(nErrMsg);
+  if( zErrMsg ){
+    memcpy(zErrMsg, sqlite3_errmsg(db), nErrMsg);
+  }
+  return zErrMsg;
+}
+
+/*
+** Execute a statement or set of statements.  Print 
+** any result rows/columns depending on the current mode 
+** set via the supplied callback.
+**
+** This is very similar to SQLite's built-in sqlite3_exec() 
+** function except it takes a slightly different callback 
+** and callback data argument.
+*/
+static int shell_exec(
+  sqlite3 *db,                                /* An open database */
+  const char *zSql,                           /* SQL to be evaluated */
+  int (*xCallback)(void*,int,char**,char**,int*),   /* Callback function */
+                                              /* (not the same as sqlite3_exec) */
+  struct callback_data *pArg,                 /* Pointer to struct callback_data */
+  char **pzErrMsg                             /* Error msg written here */
+){
+  sqlite3_stmt *pStmt = NULL;     /* Statement to execute. */
+  int rc = SQLITE_OK;             /* Return Code */
+  const char *zLeftover;          /* Tail of unprocessed SQL */
+
+  if( pzErrMsg ){
+    *pzErrMsg = NULL;
+  }
+
+  while( zSql[0] && (SQLITE_OK == rc) ){
+    rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zLeftover);
+    if( SQLITE_OK != rc ){
+      if( pzErrMsg ){
+        *pzErrMsg = save_err_msg(db);
+      }
+    }else{
+      if( !pStmt ){
+        /* this happens for a comment or white-space */
+        zSql = zLeftover;
+        while( isspace(zSql[0]) ) zSql++;
+        continue;
+      }
+
+      /* perform the first step.  this will tell us if we
+      ** have a result set or not and how wide it is.
+      */
+      rc = sqlite3_step(pStmt);
+      /* if we have a result set... */
+      if( SQLITE_ROW == rc ){
+        /* if we have a callback... */
+        if( xCallback ){
+          /* allocate space for col name ptr, value ptr, and type */
+          int nCol = sqlite3_column_count(pStmt);
+          void *pData = sqlite3_malloc(3*nCol*sizeof(const char*) + 1);
+          if( !pData ){
+            rc = SQLITE_NOMEM;
+          }else{
+            char **azCols = (char **)pData;      /* Names of result columns */
+            char **azVals = &azCols[nCol];       /* Results */
+            int *aiTypes = (int *)&azVals[nCol]; /* Result types */
+            int i;
+            assert(sizeof(int) <= sizeof(char *)); 
+            /* save off ptrs to column names */
+            for(i=0; i<nCol; i++){
+              azCols[i] = (char *)sqlite3_column_name(pStmt, i);
+            }
+            /* save off the prepared statment handle and reset row count */
+            if( pArg ){
+              pArg->pStmt = pStmt;
+              pArg->cnt = 0;
+            }
+            do{
+              /* extract the data and data types */
+              for(i=0; i<nCol; i++){
+                azVals[i] = (char *)sqlite3_column_text(pStmt, i);
+                aiTypes[i] = sqlite3_column_type(pStmt, i);
+                if( !azVals[i] && (aiTypes[i]!=SQLITE_NULL) ){
+                  rc = SQLITE_NOMEM;
+                  break; /* from for */
+                }
+              } /* end for */
+
+              /* if data and types extracted successfully... */
+              if( SQLITE_ROW == rc ){ 
+                /* call the supplied callback with the result row data */
+                if( xCallback(pArg, nCol, azVals, azCols, aiTypes) ){
+                  rc = SQLITE_ABORT;
+                }else{
+                  rc = sqlite3_step(pStmt);
+                }
+              }
+            } while( SQLITE_ROW == rc );
+            sqlite3_free(pData);
+            if( pArg ){
+              pArg->pStmt = NULL;
+            }
+          }
+        }else{
+          do{
+            rc = sqlite3_step(pStmt);
+          } while( rc == SQLITE_ROW );
+        }
+      }
+
+      /* Finalize the statement just executed. If this fails, save a 
+      ** copy of the error message. Otherwise, set zSql to point to the
+      ** next statement to execute. */
+      rc = sqlite3_finalize(pStmt);
+      if( rc==SQLITE_OK ){
+        zSql = zLeftover;
+        while( isspace(zSql[0]) ) zSql++;
+      }else if( pzErrMsg ){
+        *pzErrMsg = save_err_msg(db);
+      }
+    }
+  } /* end while */
+
+  return rc;
+}
+
+
+/*
+** This is a different callback routine used for dumping the database.
+** Each row received by this callback consists of a table name,
+** the table type ("index" or "table") and SQL to create the table.
+** This routine should print text sufficient to recreate the table.
+*/
+static int dump_callback(void *pArg, int nArg, char **azArg, char **azCol){
+  int rc;
+  const char *zTable;
+  const char *zType;
+  const char *zSql;
+  const char *zPrepStmt = 0;
+  struct callback_data *p = (struct callback_data *)pArg;
+
+  UNUSED_PARAMETER(azCol);
+  if( nArg!=3 ) return 1;
+  zTable = azArg[0];
+  zType = azArg[1];
+  zSql = azArg[2];
+  
+  if( strcmp(zTable, "sqlite_sequence")==0 ){
+    zPrepStmt = "DELETE FROM sqlite_sequence;\n";
+  }else if( strcmp(zTable, "sqlite_stat1")==0 ){
+    fprintf(p->out, "ANALYZE sqlite_master;\n");
+  }else if( strncmp(zTable, "sqlite_", 7)==0 ){
+    return 0;
+  }else if( strncmp(zSql, "CREATE VIRTUAL TABLE", 20)==0 ){
+    char *zIns;
+    if( !p->writableSchema ){
+      fprintf(p->out, "PRAGMA writable_schema=ON;\n");
+      p->writableSchema = 1;
+    }
+    zIns = sqlite3_mprintf(
+       "INSERT INTO sqlite_master(type,name,tbl_name,rootpage,sql)"
+       "VALUES('table','%q','%q',0,'%q');",
+       zTable, zTable, zSql);
+    fprintf(p->out, "%s\n", zIns);
+    sqlite3_free(zIns);
+    return 0;
+  }else{
+    fprintf(p->out, "%s;\n", zSql);
+  }
+
+  if( strcmp(zType, "table")==0 ){
+    sqlite3_stmt *pTableInfo = 0;
+    char *zSelect = 0;
+    char *zTableInfo = 0;
+    char *zTmp = 0;
+    int nRow = 0;
+   
+    zTableInfo = appendText(zTableInfo, "PRAGMA table_info(", 0);
+    zTableInfo = appendText(zTableInfo, zTable, '"');
+    zTableInfo = appendText(zTableInfo, ");", 0);
+
+    rc = sqlite3_prepare(p->db, zTableInfo, -1, &pTableInfo, 0);
+    free(zTableInfo);
+    if( rc!=SQLITE_OK || !pTableInfo ){
+      return 1;
+    }
+
+    zSelect = appendText(zSelect, "SELECT 'INSERT INTO ' || ", 0);
+    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, '"');
+      rc = sqlite3_step(pTableInfo);
+      if( rc==SQLITE_ROW ){
+        zSelect = appendText(zSelect, ") || ',' || ", 0);
+      }else{
+        zSelect = appendText(zSelect, ") ", 0);
+      }
+      nRow++;
+    }
+    rc = sqlite3_finalize(pTableInfo);
+    if( rc!=SQLITE_OK || nRow==0 ){
+      free(zSelect);
+      return 1;
+    }
+    zSelect = appendText(zSelect, "|| ')' FROM  ", 0);
+    zSelect = appendText(zSelect, zTable, '"');
+
+    rc = run_table_dump_query(p->out, p->db, zSelect, zPrepStmt);
+    if( rc==SQLITE_CORRUPT ){
+      zSelect = appendText(zSelect, " ORDER BY rowid DESC", 0);
+      rc = run_table_dump_query(p->out, p->db, 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 we get a SQLITE_CORRUPT error, rerun the query after appending
+** "ORDER BY rowid DESC" to the end.
+*/
+static int run_schema_dump_query(
+  struct callback_data *p, 
+  const char *zQuery,
+  char **pzErrMsg
+){
+  int rc;
+  rc = sqlite3_exec(p->db, zQuery, dump_callback, p, pzErrMsg);
+  if( rc==SQLITE_CORRUPT ){
+    char *zQ2;
+    int len = strlen30(zQuery);
+    if( pzErrMsg ) sqlite3_free(*pzErrMsg);
+    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, pzErrMsg);
+    free(zQ2);
+  }
+  return rc;
+}
+
+#if !defined(SQLITE_OMIT_VIRTUALTABLE) && !defined(SQLITE_OMIT_SUBQUERY)
+struct GenfkeyCmd {
+  sqlite3 *db;                   /* Database handle */
+  struct callback_data *pCb;     /* Callback data */
+  int isIgnoreErrors;            /* True for --ignore-errors */
+  int isExec;                    /* True for --exec */
+  int isNoDrop;                  /* True for --no-drop */
+  int nErr;                      /* Number of errors seen so far */
+};
+typedef struct GenfkeyCmd GenfkeyCmd;
+
+static int genfkeyParseArgs(GenfkeyCmd *p, char **azArg, int nArg){
+  int ii;
+  memset(p, 0, sizeof(GenfkeyCmd));
+
+  for(ii=0; ii<nArg; ii++){
+    int n = strlen30(azArg[ii]);
+
+    if( n>2 && n<10 && 0==strncmp(azArg[ii], "--no-drop", n) ){
+      p->isNoDrop = 1;
+    }else if( n>2 && n<16 && 0==strncmp(azArg[ii], "--ignore-errors", n) ){
+      p->isIgnoreErrors = 1;
+    }else if( n>2 && n<7 && 0==strncmp(azArg[ii], "--exec", n) ){
+      p->isExec = 1;
+    }else{
+      fprintf(stderr, "unknown option: %s\n", azArg[ii]);
+      return -1;
+    }
+  }
+
+  return SQLITE_OK;
+}
+
+static int genfkeyCmdCb(void *pCtx, int eType, const char *z){
+  GenfkeyCmd *p = (GenfkeyCmd *)pCtx;
+  if( eType==GENFKEY_ERROR && !p->isIgnoreErrors ){
+    p->nErr++;
+    fprintf(stderr, "%s\n", z);
+  } 
+
+  if( p->nErr==0 && (
+        (eType==GENFKEY_CREATETRIGGER)
+     || (eType==GENFKEY_DROPTRIGGER && !p->isNoDrop)
+  )){
+    if( p->isExec ){
+      sqlite3_exec(p->db, z, 0, 0, 0);
+    }else{
+      char *zCol = "sql";
+      callback((void *)p->pCb, 1, (char **)&z, (char **)&zCol);
+    }
+  }
+
+  return SQLITE_OK;
+}
+#endif
+
+/*
+** Text of a help message
+*/
+static char zHelp[] =
+  ".backup ?DB? FILE      Backup DB (default \"main\") to FILE\n"
+  ".bail ON|OFF           Stop after hitting an error.  Default OFF\n"
+  ".databases             List names and files of attached databases\n"
+  ".dump ?TABLE? ...      Dump the database in an SQL text format\n"
+  "                         If TABLE specified, only dump tables matching\n"
+  "                         LIKE pattern TABLE.\n"
+  ".echo ON|OFF           Turn command echo on or off\n"
+  ".exit                  Exit this program\n"
+  ".explain ?ON|OFF?      Turn output mode suitable for EXPLAIN on or off.\n"
+  "                         With no args, it turns EXPLAIN on.\n"
+#if !defined(SQLITE_OMIT_VIRTUALTABLE) && !defined(SQLITE_OMIT_SUBQUERY)
+  ".genfkey ?OPTIONS?     Options are:\n"
+  "                         --no-drop: Do not drop old fkey triggers.\n"
+  "                         --ignore-errors: Ignore tables with fkey errors\n"
+  "                         --exec: Execute generated SQL immediately\n"
+  "                       See file tool/genfkey.README in the source \n"
+  "                       distribution for further information.\n"
+#endif
+  ".header(s) ON|OFF      Turn display of headers on or off\n"
+  ".help                  Show this message\n"
+  ".import FILE TABLE     Import data from FILE into TABLE\n"
+  ".indices ?TABLE?       Show names of all indices\n"
+  "                         If TABLE specified, only show indices for tables\n"
+  "                         matching LIKE pattern TABLE.\n"
+#ifdef SQLITE_ENABLE_IOTRACE
+  ".iotrace FILE          Enable I/O diagnostic logging to FILE\n"
+#endif
+#ifndef SQLITE_OMIT_LOAD_EXTENSION
+  ".load FILE ?ENTRY?     Load an extension library\n"
+#endif
+  ".log FILE|off          Turn logging on or off.  FILE can be stderr/stdout\n"
+  ".mode MODE ?TABLE?     Set output mode where MODE is one of:\n"
+  "                         csv      Comma-separated values\n"
+  "                         column   Left-aligned columns.  (See .width)\n"
+  "                         html     HTML <table> code\n"
+  "                         insert   SQL insert statements for TABLE\n"
+  "                         line     One value per line\n"
+  "                         list     Values delimited by .separator string\n"
+  "                         tabs     Tab-separated values\n"
+  "                         tcl      TCL list elements\n"
+  ".nullvalue STRING      Print STRING in place of NULL values\n"
+  ".output FILENAME       Send output to FILENAME\n"
+  ".output stdout         Send output to the screen\n"
+  ".prompt MAIN CONTINUE  Replace the standard prompts\n"
+  ".quit                  Exit this program\n"
+  ".read FILENAME         Execute SQL in FILENAME\n"
+  ".restore ?DB? FILE     Restore content of DB (default \"main\") from FILE\n"
+  ".schema ?TABLE?        Show the CREATE statements\n"
+  "                         If TABLE specified, only show tables matching\n"
+  "                         LIKE pattern TABLE.\n"
+  ".separator STRING      Change separator used by output mode and .import\n"
+  ".show                  Show the current values for various settings\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"
+  ".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"
+;
+
+/* Forward reference */
+static int process_input(struct callback_data *p, FILE *in);
+
+/*
+** Make sure the database is open.  If it is not, then open it.  If
+** the database fails to open, print an error message and exit.
+*/
+static void open_db(struct callback_data *p){
+  if( p->db==0 ){
+    sqlite3_open(p->zDbFilename, &p->db);
+    db = p->db;
+    if( db && sqlite3_errcode(db)==SQLITE_OK ){
+      sqlite3_create_function(db, "shellstatic", 0, SQLITE_UTF8, 0,
+          shellstaticFunc, 0, 0);
+    }
+    if( db==0 || SQLITE_OK!=sqlite3_errcode(db) ){
+      fprintf(stderr,"Error: unable to open database \"%s\": %s\n", 
+          p->zDbFilename, sqlite3_errmsg(db));
+      exit(1);
+    }
+#ifndef SQLITE_OMIT_LOAD_EXTENSION
+    sqlite3_enable_load_extension(p->db, 1);
+#endif
+  }
+}
+
+/*
+** Do C-language style dequoting.
+**
+**    \t    -> tab
+**    \n    -> newline
+**    \r    -> carriage return
+**    \NNN  -> ascii character NNN in octal
+**    \\    -> backslash
+*/
+static void resolve_backslashes(char *z){
+  int i, j;
+  char c;
+  for(i=j=0; (c = z[i])!=0; i++, j++){
+    if( c=='\\' ){
+      c = z[++i];
+      if( c=='n' ){
+        c = '\n';
+      }else if( c=='t' ){
+        c = '\t';
+      }else if( c=='r' ){
+        c = '\r';
+      }else if( c>='0' && c<='7' ){
+        c -= '0';
+        if( z[i+1]>='0' && z[i+1]<='7' ){
+          i++;
+          c = (c<<3) + z[i] - '0';
+          if( z[i+1]>='0' && z[i+1]<='7' ){
+            i++;
+            c = (c<<3) + z[i] - '0';
+          }
+        }
+      }
+    }
+    z[j] = c;
+  }
+  z[j] = 0;
+}
+
+/*
+** Interpret zArg as a boolean value.  Return either 0 or 1.
+*/
+static int booleanValue(char *zArg){
+  int val = atoi(zArg);
+  int j;
+  for(j=0; zArg[j]; j++){
+    zArg[j] = (char)tolower(zArg[j]);
+  }
+  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.
+*/
+static int do_meta_command(char *zLine, struct callback_data *p){
+  int i = 1;
+  int nArg = 0;
+  int n, c;
+  int rc = 0;
+  char *azArg[50];
+
+  /* Parse the input line into tokens.
+  */
+  while( zLine[i] && nArg<ArraySize(azArg) ){
+    while( isspace((unsigned char)zLine[i]) ){ i++; }
+    if( zLine[i]==0 ) break;
+    if( zLine[i]=='\'' || zLine[i]=='"' ){
+      int delim = zLine[i++];
+      azArg[nArg++] = &zLine[i];
+      while( zLine[i] && zLine[i]!=delim ){ i++; }
+      if( zLine[i]==delim ){
+        zLine[i++] = 0;
+      }
+      if( delim=='"' ) resolve_backslashes(azArg[nArg-1]);
+    }else{
+      azArg[nArg++] = &zLine[i];
+      while( zLine[i] && !isspace((unsigned char)zLine[i]) ){ i++; }
+      if( zLine[i] ) zLine[i++] = 0;
+      resolve_backslashes(azArg[nArg-1]);
+    }
+  }
+
+  /* Process the input line.
+  */
+  if( nArg==0 ) return 0; /* no tokens, no error */
+  n = strlen30(azArg[0]);
+  c = azArg[0][0];
+  if( c=='b' && n>=3 && strncmp(azArg[0], "backup", n)==0 && nArg>1 && nArg<4){
+    const char *zDestFile;
+    const char *zDb;
+    sqlite3 *pDest;
+    sqlite3_backup *pBackup;
+    if( nArg==2 ){
+      zDestFile = azArg[1];
+      zDb = "main";
+    }else{
+      zDestFile = azArg[2];
+      zDb = azArg[1];
+    }
+    rc = sqlite3_open(zDestFile, &pDest);
+    if( rc!=SQLITE_OK ){
+      fprintf(stderr, "Error: cannot open \"%s\"\n", zDestFile);
+      sqlite3_close(pDest);
+      return 1;
+    }
+    open_db(p);
+    pBackup = sqlite3_backup_init(pDest, "main", p->db, zDb);
+    if( pBackup==0 ){
+      fprintf(stderr, "Error: %s\n", sqlite3_errmsg(pDest));
+      sqlite3_close(pDest);
+      return 1;
+    }
+    while(  (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK ){}
+    sqlite3_backup_finish(pBackup);
+    if( rc==SQLITE_DONE ){
+      rc = 0;
+    }else{
+      fprintf(stderr, "Error: %s\n", sqlite3_errmsg(pDest));
+      rc = 1;
+    }
+    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;
+    data.mode = MODE_Column;
+    data.colWidth[0] = 3;
+    data.colWidth[1] = 15;
+    data.colWidth[2] = 58;
+    data.cnt = 0;
+    sqlite3_exec(p->db, "PRAGMA database_list; ", callback, &data, &zErrMsg);
+    if( zErrMsg ){
+      fprintf(stderr,"Error: %s\n", zErrMsg);
+      sqlite3_free(zErrMsg);
+      rc = 1;
+    }
+  }else
+
+  if( c=='d' && strncmp(azArg[0], "dump", n)==0 && nArg<3 ){
+    char *zErrMsg = 0;
+    open_db(p);
+    /* When playing back a "dump", the content might appear in an order
+    ** which causes immediate foreign key constraints to be violated.
+    ** So disable foreign-key constraint enforcement to prevent problems. */
+    fprintf(p->out, "PRAGMA foreign_keys=OFF;\n");
+    fprintf(p->out, "BEGIN TRANSACTION;\n");
+    p->writableSchema = 0;
+    sqlite3_exec(p->db, "PRAGMA writable_schema=ON", 0, 0, 0);
+    if( nArg==1 ){
+      run_schema_dump_query(p, 
+        "SELECT name, type, sql FROM sqlite_master "
+        "WHERE sql NOT NULL AND type=='table' AND name!='sqlite_sequence'", 0
+      );
+      run_schema_dump_query(p, 
+        "SELECT name, type, sql FROM sqlite_master "
+        "WHERE name=='sqlite_sequence'", 0
+      );
+      run_table_dump_query(p->out, p->db,
+        "SELECT sql FROM sqlite_master "
+        "WHERE sql NOT NULL AND type IN ('index','trigger','view')", 0
+      );
+    }else{
+      int i;
+      for(i=1; i<nArg; i++){
+        zShellStatic = azArg[i];
+        run_schema_dump_query(p,
+          "SELECT name, type, sql FROM sqlite_master "
+          "WHERE tbl_name LIKE shellstatic() AND type=='table'"
+          "  AND sql NOT NULL", 0);
+        run_table_dump_query(p->out, p->db,
+          "SELECT sql FROM sqlite_master "
+          "WHERE sql NOT NULL"
+          "  AND type IN ('index','trigger','view')"
+          "  AND tbl_name LIKE shellstatic()", 0
+        );
+        zShellStatic = 0;
+      }
+    }
+    if( p->writableSchema ){
+      fprintf(p->out, "PRAGMA writable_schema=OFF;\n");
+      p->writableSchema = 0;
+    }
+    sqlite3_exec(p->db, "PRAGMA writable_schema=OFF", 0, 0, 0);
+    if( zErrMsg ){
+      fprintf(stderr,"Error: %s\n", zErrMsg);
+      sqlite3_free(zErrMsg);
+    }else{
+      fprintf(p->out, "COMMIT;\n");
+    }
+  }else
+
+  if( c=='e' && strncmp(azArg[0], "echo", n)==0 && nArg>1 && nArg<3 ){
+    p->echoOn = booleanValue(azArg[1]);
+  }else
+
+  if( c=='e' && strncmp(azArg[0], "exit", n)==0  && nArg==1 ){
+    rc = 2;
+  }else
+
+  if( c=='e' && strncmp(azArg[0], "explain", n)==0 && nArg<3 ){
+    int val = nArg>=2 ? booleanValue(azArg[1]) : 1;
+    if(val == 1) {
+      if(!p->explainPrev.valid) {
+        p->explainPrev.valid = 1;
+        p->explainPrev.mode = p->mode;
+        p->explainPrev.showHeader = p->showHeader;
+        memcpy(p->explainPrev.colWidth,p->colWidth,sizeof(p->colWidth));
+      }
+      /* We could put this code under the !p->explainValid
+      ** condition so that it does not execute if we are already in
+      ** explain mode. However, always executing it allows us an easy
+      ** was to reset to explain mode in case the user previously
+      ** did an .explain followed by a .width, .mode or .header
+      ** command.
+      */
+      p->mode = MODE_Explain;
+      p->showHeader = 1;
+      memset(p->colWidth,0,ArraySize(p->colWidth));
+      p->colWidth[0] = 4;                  /* addr */
+      p->colWidth[1] = 13;                 /* opcode */
+      p->colWidth[2] = 4;                  /* P1 */
+      p->colWidth[3] = 4;                  /* P2 */
+      p->colWidth[4] = 4;                  /* P3 */
+      p->colWidth[5] = 13;                 /* P4 */
+      p->colWidth[6] = 2;                  /* P5 */
+      p->colWidth[7] = 13;                  /* Comment */
+    }else if (p->explainPrev.valid) {
+      p->explainPrev.valid = 0;
+      p->mode = p->explainPrev.mode;
+      p->showHeader = p->explainPrev.showHeader;
+      memcpy(p->colWidth,p->explainPrev.colWidth,sizeof(p->colWidth));
+    }
+  }else
+
+#if !defined(SQLITE_OMIT_VIRTUALTABLE) && !defined(SQLITE_OMIT_SUBQUERY)
+  if( c=='g' && strncmp(azArg[0], "genfkey", n)==0 ){
+    GenfkeyCmd cmd;
+    if( 0==genfkeyParseArgs(&cmd, &azArg[1], nArg-1) ){
+      cmd.db = p->db;
+      cmd.pCb = p;
+      genfkey_create_triggers(p->db, "main", (void *)&cmd, genfkeyCmdCb);
+    }
+  }else
+#endif
+
+  if( c=='h' && (strncmp(azArg[0], "header", n)==0 ||
+                 strncmp(azArg[0], "headers", n)==0) && nArg>1 && nArg<3 ){
+    p->showHeader = booleanValue(azArg[1]);
+  }else
+
+  if( c=='h' && strncmp(azArg[0], "help", n)==0 ){
+    fprintf(stderr,"%s",zHelp);
+    if( HAS_TIMER ){
+      fprintf(stderr,"%s",zTimerHelp);
+    }
+  }else
+
+  if( c=='i' && strncmp(azArg[0], "import", n)==0 && nArg==3 ){
+    char *zTable = azArg[2];    /* Insert data into this table */
+    char *zFile = azArg[1];     /* The file from which to extract data */
+    sqlite3_stmt *pStmt = NULL; /* A statement */
+    int nCol;                   /* Number of columns in the table */
+    int nByte;                  /* Number of bytes in an SQL string */
+    int i, j;                   /* Loop counters */
+    int nSep;                   /* Number of bytes in p->separator[] */
+    char *zSql;                 /* An SQL statement */
+    char *zLine;                /* A single line of input from the file */
+    char **azCol;               /* zLine[] broken up into columns */
+    char *zCommit;              /* How to commit changes */   
+    FILE *in;                   /* The input file */
+    int lineno = 0;             /* Line number of input file */
+
+    open_db(p);
+    nSep = strlen30(p->separator);
+    if( nSep==0 ){
+      fprintf(stderr, "Error: non-null separator required for import\n");
+      return 1;
+    }
+    zSql = sqlite3_mprintf("SELECT * FROM '%q'", zTable);
+    if( zSql==0 ){
+      fprintf(stderr, "Error: out of memory\n");
+      return 1;
+    }
+    nByte = strlen30(zSql);
+    rc = sqlite3_prepare(p->db, zSql, -1, &pStmt, 0);
+    sqlite3_free(zSql);
+    if( rc ){
+      if (pStmt) sqlite3_finalize(pStmt);
+      fprintf(stderr,"Error: %s\n", sqlite3_errmsg(db));
+      return 1;
+    }
+    nCol = sqlite3_column_count(pStmt);
+    sqlite3_finalize(pStmt);
+    pStmt = 0;
+    if( nCol==0 ) return 0; /* no columns, no error */
+    zSql = malloc( nByte + 20 + nCol*2 );
+    if( zSql==0 ){
+      fprintf(stderr, "Error: out of memory\n");
+      return 1;
+    }
+    sqlite3_snprintf(nByte+20, zSql, "INSERT INTO '%q' VALUES(?", zTable);
+    j = strlen30(zSql);
+    for(i=1; i<nCol; i++){
+      zSql[j++] = ',';
+      zSql[j++] = '?';
+    }
+    zSql[j++] = ')';
+    zSql[j] = 0;
+    rc = sqlite3_prepare(p->db, zSql, -1, &pStmt, 0);
+    free(zSql);
+    if( rc ){
+      fprintf(stderr, "Error: %s\n", sqlite3_errmsg(db));
+      if (pStmt) sqlite3_finalize(pStmt);
+      return 1;
+    }
+    in = fopen(zFile, "rb");
+    if( in==0 ){
+      fprintf(stderr, "Error: cannot open \"%s\"\n", zFile);
+      sqlite3_finalize(pStmt);
+      return 1;
+    }
+    azCol = malloc( sizeof(azCol[0])*(nCol+1) );
+    if( azCol==0 ){
+      fprintf(stderr, "Error: out of memory\n");
+      fclose(in);
+      sqlite3_finalize(pStmt);
+      return 1;
+    }
+    sqlite3_exec(p->db, "BEGIN", 0, 0, 0);
+    zCommit = "COMMIT";
+    while( (zLine = local_getline(0, in))!=0 ){
+      char *z;
+      i = 0;
+      lineno++;
+      azCol[0] = zLine;
+      for(i=0, z=zLine; *z && *z!='\n' && *z!='\r'; z++){
+        if( *z==p->separator[0] && strncmp(z, p->separator, nSep)==0 ){
+          *z = 0;
+          i++;
+          if( i<nCol ){
+            azCol[i] = &z[nSep];
+            z += nSep-1;
+          }
+        }
+      } /* end for */
+      *z = 0;
+      if( i+1!=nCol ){
+        fprintf(stderr,
+                "Error: %s line %d: expected %d columns of data but found %d\n",
+                zFile, lineno, nCol, i+1);
+        zCommit = "ROLLBACK";
+        free(zLine);
+        rc = 1;
+        break; /* from while */
+      }
+      for(i=0; i<nCol; i++){
+        sqlite3_bind_text(pStmt, i+1, azCol[i], -1, SQLITE_STATIC);
+      }
+      sqlite3_step(pStmt);
+      rc = sqlite3_reset(pStmt);
+      free(zLine);
+      if( rc!=SQLITE_OK ){
+        fprintf(stderr,"Error: %s\n", sqlite3_errmsg(db));
+        zCommit = "ROLLBACK";
+        rc = 1;
+        break; /* from while */
+      }
+    } /* end while */
+    free(azCol);
+    fclose(in);
+    sqlite3_finalize(pStmt);
+    sqlite3_exec(p->db, zCommit, 0, 0, 0);
+  }else
+
+  if( c=='i' && strncmp(azArg[0], "indices", n)==0 && nArg<3 ){
+    struct callback_data data;
+    char *zErrMsg = 0;
+    open_db(p);
+    memcpy(&data, p, sizeof(data));
+    data.showHeader = 0;
+    data.mode = MODE_List;
+    if( nArg==1 ){
+      rc = sqlite3_exec(p->db,
+        "SELECT name FROM sqlite_master "
+        "WHERE type='index' AND name NOT LIKE 'sqlite_%' "
+        "UNION ALL "
+        "SELECT name FROM sqlite_temp_master "
+        "WHERE type='index' "
+        "ORDER BY 1",
+        callback, &data, &zErrMsg
+      );
+    }else{
+      zShellStatic = azArg[1];
+      rc = sqlite3_exec(p->db,
+        "SELECT name FROM sqlite_master "
+        "WHERE type='index' AND tbl_name LIKE shellstatic() "
+        "UNION ALL "
+        "SELECT name FROM sqlite_temp_master "
+        "WHERE type='index' AND tbl_name LIKE shellstatic() "
+        "ORDER BY 1",
+        callback, &data, &zErrMsg
+      );
+      zShellStatic = 0;
+    }
+    if( zErrMsg ){
+      fprintf(stderr,"Error: %s\n", zErrMsg);
+      sqlite3_free(zErrMsg);
+      rc = 1;
+    }else if( rc != SQLITE_OK ){
+      fprintf(stderr,"Error: querying sqlite_master and sqlite_temp_master\n");
+      rc = 1;
+    }
+  }else
+
+#ifdef SQLITE_ENABLE_IOTRACE
+  if( c=='i' && strncmp(azArg[0], "iotrace", n)==0 ){
+    extern void (*sqlite3IoTrace)(const char*, ...);
+    if( iotrace && iotrace!=stdout ) fclose(iotrace);
+    iotrace = 0;
+    if( nArg<2 ){
+      sqlite3IoTrace = 0;
+    }else if( strcmp(azArg[1], "-")==0 ){
+      sqlite3IoTrace = iotracePrintf;
+      iotrace = stdout;
+    }else{
+      iotrace = fopen(azArg[1], "w");
+      if( iotrace==0 ){
+        fprintf(stderr, "Error: cannot open \"%s\"\n", azArg[1]);
+        sqlite3IoTrace = 0;
+        rc = 1;
+      }else{
+        sqlite3IoTrace = iotracePrintf;
+      }
+    }
+  }else
+#endif
+
+#ifndef SQLITE_OMIT_LOAD_EXTENSION
+  if( c=='l' && strncmp(azArg[0], "load", n)==0 && nArg>=2 ){
+    const char *zFile, *zProc;
+    char *zErrMsg = 0;
+    zFile = azArg[1];
+    zProc = nArg>=3 ? azArg[2] : 0;
+    open_db(p);
+    rc = sqlite3_load_extension(p->db, zFile, zProc, &zErrMsg);
+    if( rc!=SQLITE_OK ){
+      fprintf(stderr, "Error: %s\n", zErrMsg);
+      sqlite3_free(zErrMsg);
+      rc = 1;
+    }
+  }else
+#endif
+
+  if( c=='l' && strncmp(azArg[0], "log", n)==0 && nArg>=1 ){
+    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) ){
+      p->mode = MODE_Line;
+    }else if( (n2==6 && strncmp(azArg[1],"column",n2)==0)
+              ||
+              (n2==7 && strncmp(azArg[1],"columns",n2)==0) ){
+      p->mode = MODE_Column;
+    }else if( n2==4 && strncmp(azArg[1],"list",n2)==0 ){
+      p->mode = MODE_List;
+    }else if( n2==4 && strncmp(azArg[1],"html",n2)==0 ){
+      p->mode = MODE_Html;
+    }else if( n2==3 && strncmp(azArg[1],"tcl",n2)==0 ){
+      p->mode = MODE_Tcl;
+    }else if( n2==3 && strncmp(azArg[1],"csv",n2)==0 ){
+      p->mode = MODE_Csv;
+      sqlite3_snprintf(sizeof(p->separator), p->separator, ",");
+    }else if( n2==4 && strncmp(azArg[1],"tabs",n2)==0 ){
+      p->mode = MODE_List;
+      sqlite3_snprintf(sizeof(p->separator), p->separator, "\t");
+    }else if( n2==6 && strncmp(azArg[1],"insert",n2)==0 ){
+      p->mode = MODE_Insert;
+      set_table_name(p, "table");
+    }else {
+      fprintf(stderr,"Error: mode should be one of: "
+         "column csv html insert line list tabs tcl\n");
+      rc = 1;
+    }
+  }else
+
+  if( c=='m' && strncmp(azArg[0], "mode", n)==0 && nArg==3 ){
+    int n2 = strlen30(azArg[1]);
+    if( n2==6 && strncmp(azArg[1],"insert",n2)==0 ){
+      p->mode = MODE_Insert;
+      set_table_name(p, azArg[2]);
+    }else {
+      fprintf(stderr, "Error: invalid arguments: "
+        " \"%s\". Enter \".help\" for help\n", azArg[2]);
+      rc = 1;
+    }
+  }else
+
+  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 ){
+      fclose(p->out);
+    }
+    if( strcmp(azArg[1],"stdout")==0 ){
+      p->out = stdout;
+      sqlite3_snprintf(sizeof(p->outfile), p->outfile, "stdout");
+    }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( nArg >= 3) {
+      strncpy(continuePrompt,azArg[2],(int)ArraySize(continuePrompt)-1);
+    }
+  }else
+
+  if( c=='q' && strncmp(azArg[0], "quit", n)==0 && nArg==1 ){
+    rc = 2;
+  }else
+
+  if( c=='r' && n>=3 && strncmp(azArg[0], "read", n)==0 && nArg==2 ){
+    FILE *alt = fopen(azArg[1], "rb");
+    if( alt==0 ){
+      fprintf(stderr,"Error: cannot open \"%s\"\n", azArg[1]);
+      rc = 1;
+    }else{
+      rc = process_input(p, alt);
+      fclose(alt);
+    }
+  }else
+
+  if( c=='r' && n>=3 && strncmp(azArg[0], "restore", n)==0 && nArg>1 && nArg<4){
+    const char *zSrcFile;
+    const char *zDb;
+    sqlite3 *pSrc;
+    sqlite3_backup *pBackup;
+    int nTimeout = 0;
+
+    if( nArg==2 ){
+      zSrcFile = azArg[1];
+      zDb = "main";
+    }else{
+      zSrcFile = azArg[2];
+      zDb = azArg[1];
+    }
+    rc = sqlite3_open(zSrcFile, &pSrc);
+    if( rc!=SQLITE_OK ){
+      fprintf(stderr, "Error: cannot open \"%s\"\n", zSrcFile);
+      sqlite3_close(pSrc);
+      return 1;
+    }
+    open_db(p);
+    pBackup = sqlite3_backup_init(p->db, zDb, pSrc, "main");
+    if( pBackup==0 ){
+      fprintf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
+      sqlite3_close(pSrc);
+      return 1;
+    }
+    while( (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK
+          || rc==SQLITE_BUSY  ){
+      if( rc==SQLITE_BUSY ){
+        if( nTimeout++ >= 3 ) break;
+        sqlite3_sleep(100);
+      }
+    }
+    sqlite3_backup_finish(pBackup);
+    if( rc==SQLITE_DONE ){
+      rc = 0;
+    }else if( rc==SQLITE_BUSY || rc==SQLITE_LOCKED ){
+      fprintf(stderr, "Error: source database is busy\n");
+      rc = 1;
+    }else{
+      fprintf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
+      rc = 1;
+    }
+    sqlite3_close(pSrc);
+  }else
+
+  if( c=='s' && strncmp(azArg[0], "schema", n)==0 && nArg<3 ){
+    struct callback_data data;
+    char *zErrMsg = 0;
+    open_db(p);
+    memcpy(&data, p, sizeof(data));
+    data.showHeader = 0;
+    data.mode = MODE_Semi;
+    if( nArg>1 ){
+      int i;
+      for(i=0; azArg[1][i]; i++) azArg[1][i] = (char)tolower(azArg[1][i]);
+      if( strcmp(azArg[1],"sqlite_master")==0 ){
+        char *new_argv[2], *new_colv[2];
+        new_argv[0] = "CREATE TABLE sqlite_master (\n"
+                      "  type text,\n"
+                      "  name text,\n"
+                      "  tbl_name text,\n"
+                      "  rootpage integer,\n"
+                      "  sql text\n"
+                      ")";
+        new_argv[1] = 0;
+        new_colv[0] = "sql";
+        new_colv[1] = 0;
+        callback(&data, 1, new_argv, new_colv);
+        rc = SQLITE_OK;
+      }else if( strcmp(azArg[1],"sqlite_temp_master")==0 ){
+        char *new_argv[2], *new_colv[2];
+        new_argv[0] = "CREATE TEMP TABLE sqlite_temp_master (\n"
+                      "  type text,\n"
+                      "  name text,\n"
+                      "  tbl_name text,\n"
+                      "  rootpage integer,\n"
+                      "  sql text\n"
+                      ")";
+        new_argv[1] = 0;
+        new_colv[0] = "sql";
+        new_colv[1] = 0;
+        callback(&data, 1, new_argv, new_colv);
+        rc = SQLITE_OK;
+      }else{
+        zShellStatic = azArg[1];
+        rc = sqlite3_exec(p->db,
+          "SELECT sql FROM "
+          "  (SELECT sql sql, type type, tbl_name tbl_name, name name"
+          "     FROM sqlite_master UNION ALL"
+          "   SELECT sql, type, tbl_name, name FROM sqlite_temp_master) "
+          "WHERE tbl_name LIKE shellstatic() AND type!='meta' AND sql NOTNULL "
+          "ORDER BY substr(type,2,1), name",
+          callback, &data, &zErrMsg);
+        zShellStatic = 0;
+      }
+    }else{
+      rc = sqlite3_exec(p->db,
+         "SELECT sql FROM "
+         "  (SELECT sql sql, type type, tbl_name tbl_name, name name"
+         "     FROM sqlite_master UNION ALL"
+         "   SELECT sql, type, tbl_name, name FROM sqlite_temp_master) "
+         "WHERE type!='meta' AND sql NOTNULL AND name NOT LIKE 'sqlite_%'"
+         "ORDER BY substr(type,2,1), name",
+         callback, &data, &zErrMsg
+      );
+    }
+    if( zErrMsg ){
+      fprintf(stderr,"Error: %s\n", zErrMsg);
+      sqlite3_free(zErrMsg);
+      rc = 1;
+    }else if( rc != SQLITE_OK ){
+      fprintf(stderr,"Error: querying schema information\n");
+      rc = 1;
+    }else{
+      rc = 0;
+    }
+  }else
+
+  if( c=='s' && strncmp(azArg[0], "separator", n)==0 && nArg==2 ){
+    sqlite3_snprintf(sizeof(p->separator), p->separator,
+                     "%.*s", (int)sizeof(p->separator)-1, azArg[1]);
+  }else
+
+  if( c=='s' && strncmp(azArg[0], "show", n)==0 && nArg==1 ){
+    int i;
+    fprintf(p->out,"%9.9s: %s\n","echo", p->echoOn ? "on" : "off");
+    fprintf(p->out,"%9.9s: %s\n","explain", p->explainPrev.valid ? "on" :"off");
+    fprintf(p->out,"%9.9s: %s\n","headers", p->showHeader ? "on" : "off");
+    fprintf(p->out,"%9.9s: %s\n","mode", modeDescr[p->mode]);
+    fprintf(p->out,"%9.9s: ", "nullvalue");
+      output_c_string(p->out, p->nullvalue);
+      fprintf(p->out, "\n");
+    fprintf(p->out,"%9.9s: %s\n","output",
+            strlen30(p->outfile) ? p->outfile : "stdout");
+    fprintf(p->out,"%9.9s: ", "separator");
+      output_c_string(p->out, p->separator);
+      fprintf(p->out, "\n");
+    fprintf(p->out,"%9.9s: ","width");
+    for (i=0;i<(int)ArraySize(p->colWidth) && p->colWidth[i] != 0;i++) {
+      fprintf(p->out,"%d ",p->colWidth[i]);
+    }
+    fprintf(p->out,"\n");
+  }else
+
+  if( c=='t' && n>1 && strncmp(azArg[0], "tables", n)==0 && nArg<3 ){
+    char **azResult;
+    int nRow;
+    char *zErrMsg;
+    open_db(p);
+    if( nArg==1 ){
+      rc = sqlite3_get_table(p->db,
+        "SELECT name FROM sqlite_master "
+        "WHERE type IN ('table','view') AND name NOT LIKE 'sqlite_%' "
+        "UNION ALL "
+        "SELECT name FROM sqlite_temp_master "
+        "WHERE type IN ('table','view') "
+        "ORDER BY 1",
+        &azResult, &nRow, 0, &zErrMsg
+      );
+    }else{
+      zShellStatic = azArg[1];
+      rc = sqlite3_get_table(p->db,
+        "SELECT name FROM sqlite_master "
+        "WHERE type IN ('table','view') AND name LIKE shellstatic() "
+        "UNION ALL "
+        "SELECT name FROM sqlite_temp_master "
+        "WHERE type IN ('table','view') AND name LIKE shellstatic() "
+        "ORDER BY 1",
+        &azResult, &nRow, 0, &zErrMsg
+      );
+      zShellStatic = 0;
+    }
+    if( zErrMsg ){
+      fprintf(stderr,"Error: %s\n", zErrMsg);
+      sqlite3_free(zErrMsg);
+      rc = 1;
+    }else if( rc != SQLITE_OK ){
+      fprintf(stderr,"Error: querying sqlite_master and sqlite_temp_master\n");
+      rc = 1;
+    }else{
+      int len, maxlen = 0;
+      int i, j;
+      int nPrintCol, nPrintRow;
+      for(i=1; i<=nRow; i++){
+        if( azResult[i]==0 ) continue;
+        len = strlen30(azResult[i]);
+        if( len>maxlen ) maxlen = len;
+      }
+      nPrintCol = 80/(maxlen+2);
+      if( nPrintCol<1 ) nPrintCol = 1;
+      nPrintRow = (nRow + nPrintCol - 1)/nPrintCol;
+      for(i=0; i<nPrintRow; i++){
+        for(j=i+1; j<=nRow; j+=nPrintRow){
+          char *zSp = j<=nPrintRow ? "" : "  ";
+          printf("%s%-*s", zSp, maxlen, azResult[j] ? azResult[j] : "");
+        }
+        printf("\n");
+      }
+    }
+    sqlite3_free_table(azResult);
+  }else
+
+  if( c=='t' && n>4 && strncmp(azArg[0], "timeout", n)==0 && nArg==2 ){
+    open_db(p);
+    sqlite3_busy_timeout(p->db, atoi(azArg[1]));
+  }else
+    
+  if( HAS_TIMER && c=='t' && n>=5 && strncmp(azArg[0], "timer", n)==0 && nArg==2 ){
+    enableTimer = booleanValue(azArg[1]);
+  }else
+  
+  if( c=='w' && strncmp(azArg[0], "width", n)==0 && nArg>1 ){
+    int j;
+    assert( nArg<=ArraySize(azArg) );
+    for(j=1; j<nArg && j<ArraySize(p->colWidth); j++){
+      p->colWidth[j-1] = atoi(azArg[j]);
+    }
+  }else
+
+  {
+    fprintf(stderr, "Error: unknown command or invalid arguments: "
+      " \"%s\". Enter \".help\" for help\n", azArg[0]);
+    rc = 1;
+  }
+
+  return rc;
+}
+
+/*
+** Return TRUE if a semicolon occurs anywhere in the first N characters
+** of string z[].
+*/
+static int _contains_semicolon(const char *z, int N){
+  int i;
+  for(i=0; i<N; i++){  if( z[i]==';' ) return 1; }
+  return 0;
+}
+
+/*
+** Test to see if a line consists entirely of whitespace.
+*/
+static int _all_whitespace(const char *z){
+  for(; *z; z++){
+    if( isspace(*(unsigned char*)z) ) continue;
+    if( *z=='/' && z[1]=='*' ){
+      z += 2;
+      while( *z && (*z!='*' || z[1]!='/') ){ z++; }
+      if( *z==0 ) return 0;
+      z++;
+      continue;
+    }
+    if( *z=='-' && z[1]=='-' ){
+      z += 2;
+      while( *z && *z!='\n' ){ z++; }
+      if( *z==0 ) return 1;
+      continue;
+    }
+    return 0;
+  }
+  return 1;
+}
+
+/*
+** Return TRUE if the line typed in is an SQL command terminator other
+** than a semi-colon.  The SQL Server style "go" command is understood
+** as is the Oracle "/".
+*/
+static int _is_command_terminator(const char *zLine){
+  while( isspace(*(unsigned char*)zLine) ){ zLine++; };
+  if( zLine[0]=='/' && _all_whitespace(&zLine[1]) ){
+    return 1;  /* Oracle */
+  }
+  if( tolower(zLine[0])=='g' && tolower(zLine[1])=='o'
+         && _all_whitespace(&zLine[2]) ){
+    return 1;  /* SQL Server */
+  }
+  return 0;
+}
+
+/*
+** Return true if zSql is a complete SQL statement.  Return false if it
+** ends in the middle of a string literal or C-style comment.
+*/
+static int _is_complete(char *zSql, int nSql){
+  int rc;
+  if( zSql==0 ) return 1;
+  zSql[nSql] = ';';
+  zSql[nSql+1] = 0;
+  rc = sqlite3_complete(zSql);
+  zSql[nSql] = 0;
+  return rc;
+}
+
+/*
+** Read input from *in and process it.  If *in==0 then input
+** is interactive - the user is typing it it.  Otherwise, input
+** is coming from a file or device.  A prompt is issued and history
+** is saved only if input is interactive.  An interrupt signal will
+** cause this routine to exit immediately, unless input is interactive.
+**
+** Return the number of errors.
+*/
+static int process_input(struct callback_data *p, FILE *in){
+  char *zLine = 0;
+  char *zSql = 0;
+  int nSql = 0;
+  int nSqlPrior = 0;
+  char *zErrMsg;
+  int rc;
+  int errCnt = 0;
+  int lineno = 0;
+  int startline = 0;
+
+  while( errCnt==0 || !bail_on_error || (in==0 && stdin_is_interactive) ){
+    fflush(p->out);
+    free(zLine);
+    zLine = one_input_line(zSql, in);
+    if( zLine==0 ){
+      break;  /* We have reached EOF */
+    }
+    if( seenInterrupt ){
+      if( in!=0 ) break;
+      seenInterrupt = 0;
+    }
+    lineno++;
+    if( (zSql==0 || zSql[0]==0) && _all_whitespace(zLine) ) continue;
+    if( zLine && zLine[0]=='.' && nSql==0 ){
+      if( p->echoOn ) printf("%s\n", zLine);
+      rc = do_meta_command(zLine, p);
+      if( rc==2 ){ /* exit requested */
+        break;
+      }else if( rc ){
+        errCnt++;
+      }
+      continue;
+    }
+    if( _is_command_terminator(zLine) && _is_complete(zSql, nSql) ){
+      memcpy(zLine,";",2);
+    }
+    nSqlPrior = nSql;
+    if( zSql==0 ){
+      int i;
+      for(i=0; zLine[i] && isspace((unsigned char)zLine[i]); i++){}
+      if( zLine[i]!=0 ){
+        nSql = strlen30(zLine);
+        zSql = malloc( nSql+3 );
+        if( zSql==0 ){
+          fprintf(stderr, "Error: out of memory\n");
+          exit(1);
+        }
+        memcpy(zSql, zLine, nSql+1);
+        startline = lineno;
+      }
+    }else{
+      int len = strlen30(zLine);
+      zSql = realloc( zSql, nSql + len + 4 );
+      if( zSql==0 ){
+        fprintf(stderr,"Error: out of memory\n");
+        exit(1);
+      }
+      zSql[nSql++] = '\n';
+      memcpy(&zSql[nSql], zLine, len+1);
+      nSql += len;
+    }
+    if( zSql && _contains_semicolon(&zSql[nSqlPrior], nSql-nSqlPrior)
+                && sqlite3_complete(zSql) ){
+      p->cnt = 0;
+      open_db(p);
+      BEGIN_TIMER;
+      rc = shell_exec(p->db, zSql, shell_callback, p, &zErrMsg);
+      END_TIMER;
+      if( rc || zErrMsg ){
+        char zPrefix[100];
+        if( in!=0 || !stdin_is_interactive ){
+          sqlite3_snprintf(sizeof(zPrefix), zPrefix, 
+                           "Error: near line %d:", startline);
+        }else{
+          sqlite3_snprintf(sizeof(zPrefix), zPrefix, "Error:");
+        }
+        if( zErrMsg!=0 ){
+          fprintf(stderr, "%s %s\n", zPrefix, zErrMsg);
+          sqlite3_free(zErrMsg);
+          zErrMsg = 0;
+        }else{
+          fprintf(stderr, "%s %s\n", zPrefix, sqlite3_errmsg(p->db));
+        }
+        errCnt++;
+      }
+      free(zSql);
+      zSql = 0;
+      nSql = 0;
+    }
+  }
+  if( zSql ){
+    if( !_all_whitespace(zSql) ) fprintf(stderr, "Error: incomplete SQL: %s\n", zSql);
+    free(zSql);
+  }
+  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
+
+  if (!home_dir) {
+    home_dir = getenv("HOME");
+  }
+
+#if defined(_WIN32) || defined(WIN32) || defined(__OS2__)
+  if (!home_dir) {
+    char *zDrive, *zPath;
+    int n;
+    zDrive = getenv("HOMEDRIVE");
+    zPath = getenv("HOMEPATH");
+    if( zDrive && zPath ){
+      n = strlen30(zDrive) + strlen30(zPath) + 1;
+      home_dir = malloc( n );
+      if( home_dir==0 ) return 0;
+      sqlite3_snprintf(n, home_dir, "%s%s", zDrive, zPath);
+      return home_dir;
+    }
+    home_dir = "c:\\";
+  }
+#endif
+
+#endif /* !_WIN32_WCE */
+
+  if( home_dir ){
+    int n = strlen30(home_dir) + 1;
+    char *z = malloc( n );
+    if( z ) memcpy(z, home_dir, n);
+    home_dir = z;
+  }
+
+  return home_dir;
+}
+
+/*
+** Read input from the file given by sqliterc_override.  Or if that
+** parameter is NULL, take input from ~/.sqliterc
+**
+** Returns the number of errors.
+*/
+static int process_sqliterc(
+  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[] = 
+  "   -help                show this message\n"
+  "   -init filename       read/process named file\n"
+  "   -echo                print commands before execution\n"
+  "   -[no]header          turn headers on or off\n"
+  "   -bail                stop after hitting an error\n"
+  "   -interactive         force interactive I/O\n"
+  "   -batch               force batch I/O\n"
+  "   -column              set output mode to 'column'\n"
+  "   -csv                 set output mode to 'csv'\n"
+  "   -html                set output mode to HTML\n"
+  "   -line                set output mode to 'line'\n"
+  "   -list                set output mode to 'list'\n"
+  "   -separator 'x'       set output field separator (|)\n"
+  "   -nullvalue 'text'    set text string for NULL values\n"
+  "   -version             show SQLite version\n"
+;
+static void usage(int showDetail){
+  fprintf(stderr,
+      "Usage: %s [OPTIONS] FILENAME [SQL]\n"  
+      "FILENAME is the name of an SQLite database. A new database is created\n"
+      "if the file does not previously exist.\n", Argv0);
+  if( showDetail ){
+    fprintf(stderr, "OPTIONS include:\n%s", zOptions);
+  }else{
+    fprintf(stderr, "Use the -help option for additional information\n");
+  }
+  exit(1);
+}
+
+/*
+** Initialize the state information in data
+*/
+static void main_init(struct callback_data *data) {
+  memset(data, 0, sizeof(*data));
+  data->mode = MODE_List;
+  memcpy(data->separator,"|", 2);
+  data->showHeader = 0;
+  sqlite3_config(SQLITE_CONFIG_LOG, shellLog, data);
+  sqlite3_snprintf(sizeof(mainPrompt), mainPrompt,"sqlite> ");
+  sqlite3_snprintf(sizeof(continuePrompt), continuePrompt,"   ...> ");
+}
+
+int main(int argc, char **argv){
+  char *zErrMsg = 0;
+  struct callback_data data;
+  const char *zInitFile = 0;
+  char *zFirstCmd = 0;
+  int i;
+  int rc = 0;
+
+  Argv0 = argv[0];
+  main_init(&data);
+  stdin_is_interactive = isatty(0);
+
+  /* Make sure we have a valid signal handler early, before anything
+  ** else is done.
+  */
+#ifdef SIGINT
+  signal(SIGINT, interrupt_handler);
+#endif
+
+  /* Do an initial pass through the command-line argument to locate
+  ** the name of the database file, the name of the initialization file,
+  ** and the first command to execute.
+  */
+  for(i=1; i<argc-1; i++){
+    char *z;
+    if( argv[i][0]!='-' ) break;
+    z = argv[i];
+    if( z[0]=='-' && z[1]=='-' ) z++;
+    if( strcmp(argv[i],"-separator")==0 || strcmp(argv[i],"-nullvalue")==0 ){
+      i++;
+    }else if( strcmp(argv[i],"-init")==0 ){
+      i++;
+      zInitFile = argv[i];
+    /* Need to check for batch mode here to so we can avoid printing
+    ** informational messages (like from process_sqliterc) before 
+    ** we do the actual processing of arguments later in a second pass.
+    */
+    }else if( strcmp(argv[i],"-batch")==0 ){
+      stdin_is_interactive = 0;
+    }
+  }
+  if( i<argc ){
+#if defined(SQLITE_OS_OS2) && SQLITE_OS_OS2
+    data.zDbFilename = (const char *)convertCpPathToUtf8( argv[i++] );
+#else
+    data.zDbFilename = argv[i++];
+#endif
+  }else{
+#ifndef SQLITE_OMIT_MEMORYDB
+    data.zDbFilename = ":memory:";
+#else
+    data.zDbFilename = 0;
+#endif
+  }
+  if( i<argc ){
+    zFirstCmd = argv[i++];
+  }
+  if( i<argc ){
+    fprintf(stderr,"%s: Error: too many options: \"%s\"\n", Argv0, argv[i]);
+    fprintf(stderr,"Use -help for a list of options.\n");
+    return 1;
+  }
+  data.out = stdout;
+
+#ifdef SQLITE_OMIT_MEMORYDB
+  if( data.zDbFilename==0 ){
+    fprintf(stderr,"%s: Error: no database filename specified\n", Argv0);
+    return 1;
+  }
+#endif
+
+  /* Go ahead and open the database file if it already exists.  If the
+  ** file does not exist, delay opening it.  This prevents empty database
+  ** files from being created if a user mistypes the database name argument
+  ** to the sqlite command-line tool.
+  */
+  if( access(data.zDbFilename, 0)==0 ){
+    open_db(&data);
+  }
+
+  /* Process the initialization file if there is one.  If no -init option
+  ** is given on the command line, look for a file named ~/.sqliterc and
+  ** try to process it.
+  */
+  rc = process_sqliterc(&data,zInitFile);
+  if( rc>0 ){
+    return rc;
+  }
+
+  /* Make a second pass through the command-line argument and set
+  ** options.  This second pass is delayed until after the initialization
+  ** file is processed so that the command-line arguments will override
+  ** settings in the initialization file.
+  */
+  for(i=1; i<argc && argv[i][0]=='-'; i++){
+    char *z = argv[i];
+    if( z[1]=='-' ){ z++; }
+    if( strcmp(z,"-init")==0 ){
+      i++;
+    }else if( strcmp(z,"-html")==0 ){
+      data.mode = MODE_Html;
+    }else if( strcmp(z,"-list")==0 ){
+      data.mode = MODE_List;
+    }else if( strcmp(z,"-line")==0 ){
+      data.mode = MODE_Line;
+    }else if( strcmp(z,"-column")==0 ){
+      data.mode = MODE_Column;
+    }else if( strcmp(z,"-csv")==0 ){
+      data.mode = MODE_Csv;
+      memcpy(data.separator,",",2);
+    }else if( strcmp(z,"-separator")==0 ){
+      i++;
+      if(i>=argc){
+        fprintf(stderr,"%s: Error: missing argument for option: %s\n", Argv0, z);
+        fprintf(stderr,"Use -help for a list of options.\n");
+        return 1;
+      }
+      sqlite3_snprintf(sizeof(data.separator), data.separator,
+                       "%.*s",(int)sizeof(data.separator)-1,argv[i]);
+    }else if( strcmp(z,"-nullvalue")==0 ){
+      i++;
+      if(i>=argc){
+        fprintf(stderr,"%s: Error: missing argument for option: %s\n", Argv0, z);
+        fprintf(stderr,"Use -help for a list of options.\n");
+        return 1;
+      }
+      sqlite3_snprintf(sizeof(data.nullvalue), data.nullvalue,
+                       "%.*s",(int)sizeof(data.nullvalue)-1,argv[i]);
+    }else if( strcmp(z,"-header")==0 ){
+      data.showHeader = 1;
+    }else if( strcmp(z,"-noheader")==0 ){
+      data.showHeader = 0;
+    }else if( strcmp(z,"-echo")==0 ){
+      data.echoOn = 1;
+    }else if( strcmp(z,"-bail")==0 ){
+      bail_on_error = 1;
+    }else if( strcmp(z,"-version")==0 ){
+      printf("%s\n", sqlite3_libversion());
+      return 0;
+    }else if( strcmp(z,"-interactive")==0 ){
+      stdin_is_interactive = 1;
+    }else if( strcmp(z,"-batch")==0 ){
+      stdin_is_interactive = 0;
+    }else if( strcmp(z,"-help")==0 || strcmp(z, "--help")==0 ){
+      usage(1);
+    }else{
+      fprintf(stderr,"%s: Error: unknown option: %s\n", Argv0, z);
+      fprintf(stderr,"Use -help for a list of options.\n");
+      return 1;
+    }
+  }
+
+  if( zFirstCmd ){
+    /* Run just the command that follows the database name
+    */
+    if( zFirstCmd[0]=='.' ){
+      rc = do_meta_command(zFirstCmd, &data);
+      return rc;
+    }else{
+      open_db(&data);
+      rc = shell_exec(data.db, zFirstCmd, shell_callback, &data, &zErrMsg);
+      if( zErrMsg!=0 ){
+        fprintf(stderr,"Error: %s\n", zErrMsg);
+        return rc!=0 ? rc : 1;
+      }else if( rc!=0 ){
+        fprintf(stderr,"Error: unable to process SQL \"%s\"\n", zFirstCmd);
+        return rc;
+      }
+    }
+  }else{
+    /* Run commands received from standard input
+    */
+    if( stdin_is_interactive ){
+      char *zHome;
+      char *zHistory = 0;
+      int nHistory;
+      printf(
+        "SQLite version %s\n"
+        "Enter \".help\" for instructions\n"
+        "Enter SQL statements terminated with a \";\"\n",
+        sqlite3_libversion()
+      );
+      zHome = find_home_dir();
+      if( zHome ){
+        nHistory = strlen30(zHome) + 20;
+        if( (zHistory = malloc(nHistory))!=0 ){
+          sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
+        }
+      }
+#if defined(HAVE_READLINE) && HAVE_READLINE==1
+      if( zHistory ) read_history(zHistory);
+#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( db ){
+    if( sqlite3_close(db)!=SQLITE_OK ){
+      fprintf(stderr,"Error: cannot close database \"%s\"\n", sqlite3_errmsg(db));
+      rc++;
+    }
+  }
+  return rc;
+}