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5380 lines (5095 loc) · 165 KB
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/*
** 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)) && !defined(_CRT_SECURE_NO_WARNINGS)
/* This needs to come before any includes for MSVC compiler */
#define _CRT_SECURE_NO_WARNINGS
#endif
/*
** If requested, include the SQLite compiler options file for MSVC.
*/
#if defined(INCLUDE_MSVC_H)
#include "msvc.h"
#endif
/*
** No support for loadable extensions in VxWorks.
*/
#if (defined(__RTP__) || defined(_WRS_KERNEL)) && !SQLITE_OMIT_LOAD_EXTENSION
# define SQLITE_OMIT_LOAD_EXTENSION 1
#endif
/*
** Enable large-file support for fopen() and friends on unix.
*/
#ifndef SQLITE_DISABLE_LFS
# define _LARGE_FILE 1
# ifndef _FILE_OFFSET_BITS
# define _FILE_OFFSET_BITS 64
# endif
# define _LARGEFILE_SOURCE 1
#endif
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
#include "sqlite3.h"
#if SQLITE_USER_AUTHENTICATION
# include "sqlite3userauth.h"
#endif
#include <ctype.h>
#include <stdarg.h>
#if !defined(_WIN32) && !defined(WIN32)
# include <signal.h>
# if !defined(__RTP__) && !defined(_WRS_KERNEL)
# include <pwd.h>
# endif
# include <unistd.h>
# include <sys/types.h>
#endif
#if HAVE_READLINE
# include <readline/readline.h>
# include <readline/history.h>
#endif
#if HAVE_EDITLINE
# include <editline/readline.h>
#endif
#if HAVE_EDITLINE || HAVE_READLINE
# define shell_add_history(X) add_history(X)
# define shell_read_history(X) read_history(X)
# define shell_write_history(X) write_history(X)
# define shell_stifle_history(X) stifle_history(X)
# define shell_readline(X) readline(X)
#elif HAVE_LINENOISE
# include "linenoise.h"
# define shell_add_history(X) linenoiseHistoryAdd(X)
# define shell_read_history(X) linenoiseHistoryLoad(X)
# define shell_write_history(X) linenoiseHistorySave(X)
# define shell_stifle_history(X) linenoiseHistorySetMaxLen(X)
# define shell_readline(X) linenoise(X)
#else
# define shell_read_history(X)
# define shell_write_history(X)
# define shell_stifle_history(X)
# define SHELL_USE_LOCAL_GETLINE 1
#endif
#if defined(_WIN32) || defined(WIN32)
# include <io.h>
# include <fcntl.h>
# define isatty(h) _isatty(h)
# ifndef access
# define access(f,m) _access((f),(m))
# endif
# undef popen
# define popen _popen
# undef pclose
# define pclose _pclose
#else
/* Make sure isatty() has a prototype. */
extern int isatty(int);
# if !defined(__RTP__) && !defined(_WRS_KERNEL)
/* popen and pclose are not C89 functions and so are
** sometimes omitted from the <stdio.h> header */
extern FILE *popen(const char*,const char*);
extern int pclose(FILE*);
# else
# define SQLITE_OMIT_POPEN 1
# endif
#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
/* ctype macros that work with signed characters */
#define IsSpace(X) isspace((unsigned char)X)
#define IsDigit(X) isdigit((unsigned char)X)
#define ToLower(X) (char)tolower((unsigned char)X)
#if defined(_WIN32) || defined(WIN32)
#include <windows.h>
/* string conversion routines only needed on Win32 */
extern char *sqlite3_win32_unicode_to_utf8(LPCWSTR);
extern char *sqlite3_win32_mbcs_to_utf8_v2(const char *, int);
extern char *sqlite3_win32_utf8_to_mbcs_v2(const char *, int);
#endif
/* On Windows, we normally run with output mode of TEXT so that \n characters
** are automatically translated into \r\n. However, this behavior needs
** to be disabled in some cases (ex: when generating CSV output and when
** rendering quoted strings that contain \n characters). The following
** routines take care of that.
*/
#if defined(_WIN32) || defined(WIN32)
static void setBinaryMode(FILE *file, int isOutput){
if( isOutput ) fflush(file);
_setmode(_fileno(file), _O_BINARY);
}
static void setTextMode(FILE *file, int isOutput){
if( isOutput ) fflush(file);
_setmode(_fileno(file), _O_TEXT);
}
#else
# define setBinaryMode(X,Y)
# define setTextMode(X,Y)
#endif
/* True if the timer is enabled */
static int enableTimer = 0;
/* Return the current wall-clock time */
static sqlite3_int64 timeOfDay(void){
static sqlite3_vfs *clockVfs = 0;
sqlite3_int64 t;
if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0);
if( clockVfs->iVersion>=2 && clockVfs->xCurrentTimeInt64!=0 ){
clockVfs->xCurrentTimeInt64(clockVfs, &t);
}else{
double r;
clockVfs->xCurrentTime(clockVfs, &r);
t = (sqlite3_int64)(r*86400000.0);
}
return t;
}
#if !defined(_WIN32) && !defined(WIN32) && !defined(__minux)
#include <sys/time.h>
#include <sys/resource.h>
/* VxWorks does not support getrusage() as far as we can determine */
#if defined(_WRS_KERNEL) || defined(__RTP__)
struct rusage {
struct timeval ru_utime; /* user CPU time used */
struct timeval ru_stime; /* system CPU time used */
};
#define getrusage(A,B) memset(B,0,sizeof(*B))
#endif
/* Saved resource information for the beginning of an operation */
static struct rusage sBegin; /* CPU time at start */
static sqlite3_int64 iBegin; /* Wall-clock time at start */
/*
** Begin timing an operation
*/
static void beginTimer(void){
if( enableTimer ){
getrusage(RUSAGE_SELF, &sBegin);
iBegin = timeOfDay();
}
}
/* 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 ){
sqlite3_int64 iEnd = timeOfDay();
struct rusage sEnd;
getrusage(RUSAGE_SELF, &sEnd);
printf("Run Time: real %.3f user %f sys %f\n",
(iEnd - iBegin)*0.001,
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))
/* Saved resource information for the beginning of an operation */
static HANDLE hProcess;
static FILETIME ftKernelBegin;
static FILETIME ftUserBegin;
static sqlite3_int64 ftWallBegin;
typedef BOOL (WINAPI *GETPROCTIMES)(HANDLE, LPFILETIME, LPFILETIME,
LPFILETIME, LPFILETIME);
static GETPROCTIMES getProcessTimesAddr = NULL;
/*
** 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);
ftWallBegin = timeOfDay();
}
}
/* 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;
sqlite3_int64 ftWallEnd = timeOfDay();
getProcessTimesAddr(hProcess,&ftCreation,&ftExit,&ftKernelEnd,&ftUserEnd);
printf("Run Time: real %.3f user %f sys %f\n",
(ftWallEnd - ftWallBegin)*0.001,
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)
/*
** 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;
/*
** On Windows systems we have to know if standard output is a console
** in order to translate UTF-8 into MBCS. The following variable is
** true if translation is required.
*/
static int stdout_is_console = 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 *globalDb = 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: " ...> " */
/*
** Render output like fprintf(). Except, if the output is going to the
** console and if this is running on a Windows machine, translate the
** output from UTF-8 into MBCS.
*/
#if defined(_WIN32) || defined(WIN32)
void utf8_printf(FILE *out, const char *zFormat, ...){
va_list ap;
va_start(ap, zFormat);
if( stdout_is_console && (out==stdout || out==stderr) ){
char *z1 = sqlite3_vmprintf(zFormat, ap);
char *z2 = sqlite3_win32_utf8_to_mbcs_v2(z1, 0);
sqlite3_free(z1);
fputs(z2, out);
sqlite3_free(z2);
}else{
vfprintf(out, zFormat, ap);
}
va_end(ap);
}
#elif !defined(utf8_printf)
# define utf8_printf fprintf
#endif
/*
** Render output like fprintf(). This should not be used on anything that
** includes string formatting (e.g. "%s").
*/
#if !defined(raw_printf)
# define raw_printf fprintf
#endif
/*
** 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 SQLITE_CDECL 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);
utf8_printf(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);
}
/*
** 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);
}
/*
** 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.
**
** If zLine is not NULL then it is a malloced buffer returned from
** a previous call to this routine that may be reused.
*/
static char *local_getline(char *zLine, FILE *in){
int nLine = zLine==0 ? 0 : 100;
int n = 0;
while( 1 ){
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;
break;
}
while( zLine[n] ) n++;
if( n>0 && zLine[n-1]=='\n' ){
n--;
if( n>0 && zLine[n-1]=='\r' ) n--;
zLine[n] = 0;
break;
}
}
#if defined(_WIN32) || defined(WIN32)
/* For interactive input on Windows systems, translate the
** multi-byte characterset characters into UTF-8. */
if( stdin_is_interactive ){
char *zTrans = sqlite3_win32_mbcs_to_utf8_v2(zLine, 0);
if( zTrans ){
int nTrans = strlen30(zTrans)+1;
if( nTrans>nLine ){
zLine = realloc(zLine, nTrans);
if( zLine==0 ){
sqlite3_free(zTrans);
return 0;
}
}
memcpy(zLine, zTrans, nTrans);
sqlite3_free(zTrans);
}
}
#endif /* defined(_WIN32) || defined(WIN32) */
return zLine;
}
/*
** Retrieve a single line of input text.
**
** If in==0 then read from standard input and prompt before each line.
** If isContinuation is true, then a continuation prompt is appropriate.
** If isContinuation is zero, then the main prompt should be used.
**
** If zPrior is not NULL then it is a buffer from a prior call to this
** routine that can be reused.
**
** The result is stored in space obtained from malloc() and must either
** be freed by the caller or else passed back into this routine via the
** zPrior argument for reuse.
*/
static char *one_input_line(FILE *in, char *zPrior, int isContinuation){
char *zPrompt;
char *zResult;
if( in!=0 ){
zResult = local_getline(zPrior, in);
}else{
zPrompt = isContinuation ? continuePrompt : mainPrompt;
#if SHELL_USE_LOCAL_GETLINE
printf("%s", zPrompt);
fflush(stdout);
zResult = local_getline(zPrior, stdin);
#else
free(zPrior);
zResult = shell_readline(zPrompt);
if( zResult && *zResult ) shell_add_history(zResult);
#endif
}
return zResult;
}
#if defined(SQLITE_ENABLE_SESSION)
/*
** State information for a single open session
*/
typedef struct OpenSession OpenSession;
struct OpenSession {
char *zName; /* Symbolic name for this session */
int nFilter; /* Number of xFilter rejection GLOB patterns */
char **azFilter; /* Array of xFilter rejection GLOB patterns */
sqlite3_session *p; /* The open session */
};
#endif
/*
** Shell output mode information from before ".explain on",
** saved so that it can be restored by ".explain off"
*/
typedef struct SavedModeInfo SavedModeInfo;
struct SavedModeInfo {
int valid; /* Is there legit data in here? */
int mode; /* Mode prior to ".explain on" */
int showHeader; /* The ".header" setting prior to ".explain on" */
int colWidth[100]; /* Column widths prior to ".explain on" */
};
/*
** State information about the database connection is contained in an
** instance of the following structure.
*/
typedef struct ShellState ShellState;
struct ShellState {
sqlite3 *db; /* The database */
int echoOn; /* True to echo input commands */
int autoExplain; /* Automatically turn on .explain mode */
int autoEQP; /* Run EXPLAIN QUERY PLAN prior to seach SQL stmt */
int statsOn; /* True to display memory stats before each finalize */
int scanstatsOn; /* True to display scan stats before each finalize */
int countChanges; /* True to display change counts */
int backslashOn; /* Resolve C-style \x escapes in SQL input text */
int outCount; /* Revert to stdout when reaching zero */
int cnt; /* Number of records displayed so far */
FILE *out; /* Write results here */
FILE *traceOut; /* Output for sqlite3_trace() */
int nErr; /* Number of errors seen */
int mode; /* An output mode setting */
int cMode; /* temporary output mode for the current query */
int normalMode; /* Output mode
58D6
before ".explain on" */
int writableSchema; /* True if PRAGMA writable_schema=ON */
int showHeader; /* True to show column names in List or Column mode */
unsigned shellFlgs; /* Various flags */
char *zDestTable; /* Name of destination table when MODE_Insert */
char colSeparator[20]; /* Column separator character for several modes */
char rowSeparator[20]; /* Row separator character for MODE_Ascii */
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 */
char outfile[FILENAME_MAX]; /* Filename for *out */
const char *zDbFilename; /* name of the database file */
char *zFreeOnClose; /* Filename to free when closing */
const char *zVfs; /* Name of VFS to use */
sqlite3_stmt *pStmt; /* Current statement if any. */
FILE *pLog; /* Write log output here */
int *aiIndent; /* Array of indents used in MODE_Explain */
int nIndent; /* Size of array aiIndent[] */
int iIndent; /* Index of current op in aiIndent[] */
#if defined(SQLITE_ENABLE_SESSION)
int nSession; /* Number of active sessions */
OpenSession aSession[4]; /* Array of sessions. [0] is in focus. */
#endif
};
/*
** These are the allowed shellFlgs values
*/
#define SHFLG_Scratch 0x00001 /* The --scratch option is used */
#define SHFLG_Pagecache 0x00002 /* The --pagecache option is used */
#define SHFLG_Lookaside 0x00004 /* Lookaside memory is used */
/*
** 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 */
#define MODE_Ascii 9 /* Use ASCII unit and record separators (0x1F/0x1E) */
static const char *modeDescr[] = {
"line",
"column",
"list",
"semi",
"html",
"insert",
"tcl",
"csv",
"explain",
"ascii",
};
/*
** These are the column/row/line separators used by the various
** import/export modes.
*/
#define SEP_Column "|"
#define SEP_Row "\n"
#define SEP_Tab "\t"
#define SEP_Space " "
#define SEP_Comma ","
#define SEP_CrLf "\r\n"
#define SEP_Unit "\x1F"
#define SEP_Record "\x1E"
/*
** Number of elements in an array
*/
#define ArraySize(X) (int)(sizeof(X)/sizeof(X[0]))
/*
** A callback for the sqlite3_log() interface.
*/
static void shellLog(void *pArg, int iErrCode, const char *zMsg){
ShellState *p = (ShellState*)pArg;
if( p->pLog==0 ) return;
utf8_printf(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;
raw_printf(out,"X'");
for(i=0; i<nBlob; i++){ raw_printf(out,"%02x",zBlob[i]&0xff); }
raw_printf(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;
setBinaryMode(out, 1);
for(i=0; z[i]; i++){
if( z[i]=='\'' ) nSingle++;
}
if( nSingle==0 ){
utf8_printf(out,"'%s'",z);
}else{
raw_printf(out,"'");
while( *z ){
for(i=0; z[i] && z[i]!='\''; i++){}
if( i==0 ){
raw_printf(out,"''");
z++;
}else if( z[i]=='\'' ){
utf8_printf(out,"%.*s''",i,z);
z += i+1;
}else{
utf8_printf(out,"%s",z);
break;
}
}
raw_printf(out,"'");
}
setTextMode(out, 1);
}
/*
** 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=='"' ){
fputc('\\', out);
fputc('"', 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&0xff) ){
raw_printf(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;
if( z==0 ) z = "";
while( *z ){
for(i=0; z[i]
&& z[i]!='<'
&& z[i]!='&'
&& z[i]!='>'
&& z[i]!='\"'
&& z[i]!='\'';
i++){}
if( i>0 ){
utf8_printf(out,"%.*s",i,z);
}
if( z[i]=='<' ){
raw_printf(out,"<");
}else if( z[i]=='&' ){
raw_printf(out,"&");
}else if( z[i]=='>' ){
raw_printf(out,">");
}else if( z[i]=='\"' ){
raw_printf(out,""");
}else if( z[i]=='\'' ){
raw_printf(out,"'");
}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->colSeparator is used for
** the separator, which may or may not be a comma. p->nullValue is
** the null value. Strings are quoted if necessary. The separator
** is only issued if bSep is true.
*/
static void output_csv(ShellState *p, const char *z, int bSep){
FILE *out = p->out;
if( z==0 ){
utf8_printf(out,"%s",p->nullValue);
}else{
int i;
int nSep = strlen30(p->colSeparator);
for(i=0; z[i]; i++){
if( needCsvQuote[((unsigned char*)z)[i]]
|| (z[i]==p->colSeparator[0] &&
(nSep==1 || memcmp(z, p->colSeparator, 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{
utf8_printf(out, "%s", z);
}
}
if( bSep ){
utf8_printf(p->out, "%s", p->colSeparator);
}
}
#ifdef SIGINT
/*
** This routine runs when the user presses Ctrl-C
*/
static void interrupt_handler(int NotUsed){
UNUSED_PARAMETER(NotUsed);
seenInterrupt++;
if( seenInterrupt>2 ) exit(1);
if( globalDb ) sqlite3_interrupt(globalDb);
}
#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, /* Number of result columns */
char **azArg, /* Text of each result column */
char **azCol, /* Column names */
int *aiType /* Column types */
){
int i;
ShellState *p = (ShellState*)pArg;
switch( p->cMode ){
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 ) utf8_printf(p->out, "%s", p->rowSeparator);
for(i=0; i<nArg; i++){
utf8_printf(p->out,"%*s = %s%s", w, azCol[i],
azArg[i] ? azArg[i] : p->nullValue, p->rowSeparator);
}
break;
}
case MODE_Explain:
case MODE_Column: {
static const int aExplainWidths[] = {4, 13, 4, 4, 4, 13, 2, 13};
const int *colWidth;
int showHdr;
char *rowSep;
if( p->cMode==MODE_Column ){
colWidth = p->colWidth;
showHdr = p->showHeader;
rowSep = p->rowSeparator;
}else{
colWidth = aExplainWidths;
showHdr = 1;
rowSep = SEP_Row;
}
if( p->cnt++==0 ){
for(i=0; i<nArg; i++){
int w, n;
if( i<ArraySize(p->colWidth) ){
w = 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( showHdr ){
if( w<0 ){
utf8_printf(p->out,"%*.*s%s",-w,-w,azCol[i],
i==nArg-1 ? rowSep : " ");
}else{
utf8_printf(p->out,"%-*.*s%s",w,w,azCol[i],
i==nArg-1 ? rowSep : " ");
}
}
}
if( showHdr ){
for(i=0; i<nArg; i++){
int w;
if( i<ArraySize(p->actualWidth) ){
w = p->actualWidth[i];
if( w<0 ) w = -w;
}else{
w = 10;
}
utf8_printf(p->out,"%-*.*s%s",w,w,
"----------------------------------------------------------"
"----------------------------------------------------------",
i==nArg-1 ? rowSep : " ");
}
}
}
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->cMode==MODE_Explain && azArg[i] && strlen30(azArg[i])>w ){
w = strlen30(azArg[i]);
}
if( i==1 && p->aiIndent && p->pStmt ){
if( p->iIndent<p->nIndent ){
utf8_printf(p->out, "%*.s", p->aiIndent[p->iIndent], "");
}
p->iIndent++;
}
if( w<0 ){
utf8_printf(p->out,"%*.*s%s",-w,-w,