impexp.c File Reference

Detailed Description

SQLite extension module for importing/exporting database information from/to SQL source text and export to CSV text.

2007 January 27

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.

 Usage:

  SQLite function:
       SELECT import_sql(filename);

  C function:
       int impexp_import_sql(sqlite3 *db,
                             char *filename);

       Reads SQL commands from filename and executes them
       against the current database. Returns the number
       of changes to the current database.

  SQLite function:
       SELECT export_sql(filename, [mode, tablename, ...]);

  C function:
       int impexp_export_sql(sqlite3 *db, char *filename, int mode, ...);

       Writes SQL to filename similar to SQLite's shell
       ".dump" meta command. Mode selects the output format:
       Mode 0 (default): dump schema and data using the
       optional table names following the mode argument.
       Mode 1: dump data only using the optional table
       names following the mode argument.
       Mode 2: dump schema and data using the optional
       table names following the mode argument; each
       table name is followed by a WHERE clause, i.e.
       "mode, table1, where1, table2, where2, ..."
       Mode 3: dump data only, same rules as in mode 2.
       Returns approximate number of lines written or
       -1 when an error occurred.

       Bit 1 of mode:      when 1 dump data only
       Bits 8..9 of mode:  blob quoting mode
           0   default
         256   ORACLE
         512   SQL Server
         768   MySQL

  SQLite function:
       SELECT export_csv(filename, hdr, prefix1, tablename1, schema1, ...]);

  C function:
       int impexp_export_csv(sqlite3 *db, char *filename, int hdr, ...);
                             [char *prefix1, char *tablename1,
                             char *schema1, ...]

       Writes entire tables as CSV to provided filename. A header
       row is written when the hdr parameter is true. The
       rows are optionally introduced with a column made up of
       the prefix (non-empty string) for the respective table.
       If "schema" is NULL, "sqlite_master" is used, otherwise
       specify e.g. "sqlite_temp_master" for temporary tables or
       "att.sqlite_master" for the attached database "att".

          CREATE TABLE A(a,b);
          INSERT INTO A VALUES(1,2);
          INSERT INTO A VALUES(3,'foo');
          CREATE TABLE B(c);
          INSERT INTO B VALUES('hello');
          SELECT export_csv('out.csv', 0, 'aa', 'A', NULL, 'bb', 'B', NULL);
          -- CSV output
          "aa",1,2
          "aa",3,"foo"
          "bb","hello"
          SELECT export_csv('out.csv', 1, 'aa', 'A', NULL, 'bb', 'B', NULL);
          -- CSV output
          "aa","a","b"
          "aa",1,2
          "aa",3,"foo"
          "bb","c"
          "bb","hello"

  SQLite function:
       SELECT export_xml(filename, appendflag, indent,
                         [root, item, tablename, schema]+);

  C function:
       int impexp_export_xml(sqlite3 *db, char *filename,
                             int append, int indent, char *root,
                             char *item, char *tablename, char *schema);

       Writes a table as simple XML to provided filename. The
       rows are optionally enclosed with the "root" tag,
       the row data is enclosed in "item" tags. If "schema"
       is NULL, "sqlite_master" is used, otherwise specify
       e.g. "sqlite_temp_master" for temporary tables or
       "att.sqlite_master" for the attached database "att".

          
           <columnname type="INTEGER|REAL|NULL|TEXT|BLOB">value</columnname>
           ...
          

       e.g.

          CREATE TABLE A(a,b);
          INSERT INTO A VALUES(1,2.1);
          INSERT INTO A VALUES(3,'foo');
          INSERT INTO A VALUES('',NULL);
          INSERT INTO A VALUES(X'010203','<blob>');
          SELECT export_xml('out.xml', 0, 2, 'TBL_A', 'ROW', 'A');
          -- XML output
            <TBL_A>
              <ROW>
                <a TYPE="INTEGER">1</a>
                <b TYPE="REAL">2.1</b>
              </ROW>
              <ROW>
                <a TYPE="INTEGER">3</a>
                <b TYPE="TEXT">foo</b>
              </ROW>
              <ROW>
                <a TYPE="TEXT"></a>
                <b TYPE="NULL"></b>
              </ROW>
              <ROW>
                <a TYPE="BLOB">&x01;&x02;</a>
                <b TYPE="TEXT">&lt;blob&gt;</b>
              </ROW>
            </TBL_A>

       Quoting of XML entities is performed only on the data,
       not on column names and root/item tags.

  SQLite function:
       SELECT export_json(filename, sql);

  C function:
       int impexp_export_json(sqlite3 *db, char *sql,
                              impexp_putc pfunc, void *parg);

       Executes arbitrary SQL statements and formats
       the result in JavaScript Object Notation (JSON).
       The layout of the result is:

        object {results, sql}
         results[] object {columns, rows, changes, last_insert_rowid, error}
          columns[]
           object {name, decltype, type }     (sqlite3_column_*)
          rows[][]                            (sqlite3_column_*)
          changes                             (sqlite3_changes)
          last_insert_rowid                   (sqlite3_last_insert_rowid)
          error                               (sqlite3_errmsg)
         sql                                  (SQL text)

       For each single SQL statement in "sql" an object in the
       "results" array is produced.

       The function pointer for the output function to
       "impexp_export_json" has a signature compatible
       with fputc(3).

 On Win32 the filename argument may be specified as NULL in order
 to open a system file dialog for interactive filename selection.

Definition in file impexp.c.

#include <sqlite3ext.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stddef.h>
#include <unistd.h>
#include "impexp.h"

Go to the source code of this file.

Data Structures

struct  json_pfs
 JSON output helper structure. More...
struct  DUMP_DATA
 Structure for dump callback. More...

Defines

#define ISSPACE(c)   ((c) && (strchr(space_chars, (c)) != 0))

Functions

static char * one_input_line (FILE *fin)
 Read one line of input into dynamically allocated buffer which the caller must free with sqlite3_free().
static int ends_with_semicolon (const char *str, int n)
 Test if string ends with a semicolon.
static int all_whitespace (const char *str)
 Test if string contains entirely whitespace or SQL comment.
static int process_input (sqlite3 *db, FILE *fin)
 Process contents of FILE pointer as SQL commands.
static void quote_func (sqlite3_context *context, int argc, sqlite3_value **argv)
 SQLite function to quote SQLite value depending on optional quote mode.
static void quote_csv_func (sqlite3_context *context, int argc, sqlite3_value **argv)
 SQLite function to quote an SQLite value in CSV format.
static void indent_xml_func (sqlite3_context *context, int argc, sqlite3_value **argv)
 SQLite function to make XML indentation.
static void quote_xml_func (sqlite3_context *context, int argc, sqlite3_value **argv)
 SQLite function to quote a string for XML.
static void import_func (sqlite3_context *ctx, int nargs, sqlite3_value **args)
 SQLite function to read and process SQL commands from a file.
int impexp_import_sql (sqlite3 *db, char *filename)
 Reads SQL commands from filename and executes them against the current database.
static void indent (DUMP_DATA *dd)
 Write indentation to dump.
static int table_dump (DUMP_DATA *dd, char **errp, int fmt, const char *query,...)
 Execute SQL to dump contents of one table.
static void append_free (char **in)
 Free dynamically allocated string buffer.
static char * append (char **in, char const *append, char quote)
 Append a string to dynamically allocated string buffer with optional quoting.
static void quote_xml_str (DUMP_DATA *dd, char *str)
 Quote string for XML output during dump.
static int dump_cb (void *udata, int nargs, char **args, char **cols)
 Callback for sqlite3_exec() to dump one data row.
static int schema_dump (DUMP_DATA *dd, char **errp, const char *query,...)
 Execute SQL on sqlite_master table in order to dump data.
static void export_func (sqlite3_context *ctx, int nargs, sqlite3_value **args)
 SQLite function for SQL output, see impexp_export_sql.
static void export_csv_func (sqlite3_context *ctx, int nargs, sqlite3_value **args)
 SQLite function for CSV output, see impexp_export_csv.
static void export_xml_func (sqlite3_context *ctx, int nargs, sqlite3_value **args)
 SQLite function for XML output, see impexp_export_xml.
int impexp_export_sql (sqlite3 *db, char *filename, int mode,...)
 Writes SQL to filename similar to SQLite's shell ".dump" meta command.
int impexp_export_csv (sqlite3 *db, char *filename, int hdr,...)
 Writes entire tables as CSV to provided filename.
int impexp_export_xml (sqlite3 *db, char *filename, int append, int indnt, char *root, char *item, char *tablename, char *schema)
 Writes a table as simple XML to provided filename.
static void json_pstr (const char *string, json_pfs *pfs)
 Write string using JSON output function.
static void json_pstrq (const char *string, json_pfs *pfs)
 Quote and write string using JSON output function.
static void json_pstrc (const char *string, json_pfs *pfs)
 Conditionally quote and write string using JSON output function.
static void json_pb64 (const unsigned char *blk, int len, json_pfs *pfs)
 Write a blob as base64 string using JSON output function.
static int json_output (sqlite3 *db, char *sql, impexp_putc pfunc, void *parg)
 Execute SQL and write output as JSON.
static void export_json_func (sqlite3_context *ctx, int nargs, sqlite3_value **args)
 SQLite function for JSON output, see impexp_export_json.
int impexp_export_json (sqlite3 *db, char *sql, impexp_putc pfunc, void *parg)
 Executes arbitrary SQL statements and formats the result in JavaScript Object Notation (JSON).
int sqlite3_extension_init (sqlite3 *db, char **errmsg, const sqlite3_api_routines *api)
 Initializer for SQLite extension load mechanism.
int impexp_init (sqlite3 *db)
 Registers the SQLite functions.

Variables

static const char space_chars [] = " \f\n\r\t\v"

Define Documentation

#define ISSPACE ( c   )     ((c) && (strchr(space_chars, (c)) != 0))

Definition at line 219 of file impexp.c.

Function Documentation

static int all_whitespace ( const char *  str  )  [static]

Test if string contains entirely whitespace or SQL comment.

Parameters:
str string to be tested
Returns:
true or false

Definition at line 301 of file impexp.c.

References ISSPACE.

Referenced by process_input().

static char* append ( char **  in,
char const *  append,
char  quote 
) [static]

Append a string to dynamically allocated string buffer with optional quoting.

Parameters:
in input string pointer
append string to append
quote quote character or NUL
Returns:
new string to be free'd with append_free()

Definition at line 1034 of file impexp.c.

Referenced by csv_import_func(), csv_vtab_connect(), and dump_cb().

static void append_free ( char **  in  )  [static]

Free dynamically allocated string buffer.

Parameters:
in input string pointer

Definition at line 1013 of file impexp.c.

Referenced by csv_import_func(), csv_vtab_connect(), and dump_cb().

static int dump_cb ( void *  udata,
int  nargs,
char **  args,
char **  cols 
) [static]

Callback for sqlite3_exec() to dump one data row.

Parameters:
udata information structure for dump
nargs number of columns
args column data
cols column labels
Returns:
0 to continue, 1 to abort

Definition at line 1151 of file impexp.c.

References append(), append_free(), DUMP_DATA::db, DUMP_DATA::indent, DUMP_DATA::nlines, DUMP_DATA::out, DUMP_DATA::quote_mode, table_dump(), DUMP_DATA::where, and DUMP_DATA::with_schema.

Referenced by schema_dump().

static int ends_with_semicolon ( const char *  str,
int  n 
) [static]

Test if string ends with a semicolon.

Parameters:
str string to be tested
n length of string
Returns:
true or false

Definition at line 286 of file impexp.c.

References ISSPACE.

Referenced by process_input().

static void export_csv_func ( sqlite3_context *  ctx,
int  nargs,
sqlite3_value **  args 
) [static]

SQLite function for CSV output, see impexp_export_csv.

Parameters:
ctx SQLite function context
nargs number of arguments
args argument vector

Definition at line 1596 of file impexp.c.

References DUMP_DATA::db, DUMP_DATA::indent, DUMP_DATA::nlines, DUMP_DATA::out, DUMP_DATA::quote_mode, schema_dump(), DUMP_DATA::where, and DUMP_DATA::with_schema.

Referenced by sqlite3_extension_init().

static void export_func ( sqlite3_context *  ctx,
int  nargs,
sqlite3_value **  args 
) [static]

SQLite function for SQL output, see impexp_export_sql.

Parameters:
ctx SQLite function context
nargs number of arguments
args argument vector

Definition at line 1499 of file impexp.c.

References DUMP_DATA::db, DUMP_DATA::indent, DUMP_DATA::nlines, DUMP_DATA::out, DUMP_DATA::quote_mode, schema_dump(), table_dump(), DUMP_DATA::where, and DUMP_DATA::with_schema.

Referenced by sqlite3_extension_init().

static void export_json_func ( sqlite3_context *  ctx,
int  nargs,
sqlite3_value **  args 
) [static]

SQLite function for JSON output, see impexp_export_json.

Parameters:
ctx SQLite function context
nargs number of arguments
args argument vector

Definition at line 2405 of file impexp.c.

References json_output().

Referenced by sqlite3_extension_init().

static void export_xml_func ( sqlite3_context *  ctx,
int  nargs,
sqlite3_value **  args 
) [static]

SQLite function for XML output, see impexp_export_xml.

Parameters:
ctx SQLite function context
nargs number of arguments
args argument vector

Definition at line 1690 of file impexp.c.

References DUMP_DATA::db, indent(), DUMP_DATA::indent, DUMP_DATA::nlines, DUMP_DATA::out, DUMP_DATA::quote_mode, quote_xml_str(), schema_dump(), DUMP_DATA::where, and DUMP_DATA::with_schema.

Referenced by sqlite3_extension_init().

int impexp_export_csv ( sqlite3 *  db,
char *  filename,
int  hdr,
  ... 
)

Writes entire tables as CSV to provided filename.

A header row is written when the hdr parameter is true. The rows are optionally introduced with a column made up of the prefix (non-empty string) for the respective table. If "schema" is NULL, "sqlite_master" is used, otherwise specify e.g. "sqlite_temp_master" for temporary tables or "att.sqlite_master" for the attached database "att".

Parameters:
db SQLite database pointer
filename name of output file
hdr write header lines when true
... tuples of prefix, table name, schema name
Returns:
number of output lines
Example:

   CREATE TABLE A(a,b);
   INSERT INTO A VALUES(1,2);
   INSERT INTO A VALUES(3,'foo')
   CREATE TABLE B(c);
   INSERT INTO B VALUES('hello');
   SELECT export_csv('out.csv', 0, 'aa', 'A', NULL, 'bb', 'B', NULL);
   -- CSV output
   "aa",1,2
   "aa",3,"foo"
   "bb","hello"
   SELECT export_csv('out.csv', 1, 'aa', 'A', NULL, 'bb', 'B', NULL);
   -- CSV output
   "aa","a","b"
   "aa",1,2
   "aa",3,"foo"
   "bb","c"
   "bb","hello"

Definition at line 1890 of file impexp.c.

References DUMP_DATA::db, DUMP_DATA::indent, DUMP_DATA::nlines, DUMP_DATA::out, DUMP_DATA::quote_mode, schema_dump(), DUMP_DATA::where, and DUMP_DATA::with_schema.

int impexp_export_json ( sqlite3 *  db,
char *  sql,
impexp_putc  pfunc,
void *  parg 
)

Executes arbitrary SQL statements and formats the result in JavaScript Object Notation (JSON).

Parameters:
db SQLite database pointer
sql SQL to be executed
pfunc pointer to output function
parg argument for output function
Returns:
SQLite error code
The layout of the result output is:

  object {results, sql}
    results[] object {columns, rows, changes, last_insert_rowid, error}
      columns[]
        object {name, decltype, type }    (sqlite3_column_*)
      rows[][]                            (sqlite3_column_*)
      changes                             (sqlite3_changes)
      last_insert_rowid                   (sqlite3_last_insert_rowid)
      error                               (sqlite3_errmsg)
    sql                                   (SQL text)

For each single SQL statement in "sql" an object in the "results" array is produced.

Definition at line 2458 of file impexp.c.

References json_output().

int impexp_export_sql ( sqlite3 *  db,
char *  filename,
int  mode,
  ... 
)

Writes SQL to filename similar to SQLite's shell ".dump" meta command.

Mode selects the output format.

Parameters:
db SQLite database pointer
filename name of output file
mode selects output format
... optional table names or tuples of table name, and where-clause depending on mode parameter
Returns:
approximate number of lines written or -1 when an error occurred
Mode 0 (default): dump schema and data using the optional table names following the mode argument.
Mode 1: dump data only using the optional table names following the mode argument.
Mode 2: dump schema and data using the optional table names following the mode argument; each table name is followed by a WHERE clause, i.e. "mode, table1, where1, table2, where2, ..."
Mode 3: dump data only, same rules as in mode 2.

Other flags in mode:

       Bit 1 of mode:      when 1 dump data only
       Bits 8..9 of mode:  blob quoting mode

           0   default
         256   ORACLE
         512   SQL Server
         768   MySQL

Definition at line 1804 of file impexp.c.

References DUMP_DATA::db, DUMP_DATA::nlines, DUMP_DATA::out, schema_dump(), table_dump(), DUMP_DATA::where, and DUMP_DATA::with_schema.

int impexp_export_xml ( sqlite3 *  db,
char *  filename,
int  append,
int  indent,
char *  root,
char *  item,
char *  tablename,
char *  schema 
)

Writes a table as simple XML to provided filename.

The rows are optionally enclosed with the "root" tag, the row data is enclosed in "item" tags. If "schema" is NULL, "sqlite_master" is used, otherwise specify e.g. "sqlite_temp_master" for temporary tables or "att.sqlite_master" for the attached database "att".

Parameters:
db SQLite database pointer
filename name of output file
append if true, append to existing output file
indent number of blanks to indent output
root optional tag use to enclose table output
item tag to use per row
tablename table to be output
schema optional schema or NULL
Returns:
number of output lines
Layout of an output row: 
  
   <columnname type="INTEGER|REAL|NULL|TEXT|BLOB">value</columnname>
   ...

Example: 

  CREATE TABLE A(a,b);
  INSERT INTO A VALUES(1,2.1);
  INSERT INTO A VALUES(3,'foo');
  INSERT INTO A VALUES('',NULL);
  INSERT INTO A VALUES(X'010203','<blob>');
  SELECT export_xml('out.xml', 0, 2, 'TBL_A', 'ROW', 'A');
  -- XML output
    <TBL_A>
       <ROW>
          <a TYPE="INTEGER">1</a>
          <b TYPE="REAL">2.1</b>
       </ROW>
       <ROW>
          <a TYPE="INTEGER">3</a>
          <b TYPE="TEXT">foo</b>
       </ROW>
       <ROW>
          <a TYPE="TEXT"></a>
          <b TYPE="NULL"></b>
       </ROW>
       <ROW>
          <a TYPE="BLOB">&x01;&x02;</a>
          <b TYPE="TEXT">&lt;blob&gt;</b>
       </ROW>
     </TBL_A>

Quoting of XML entities is performed only on the data, not on column names and root/item tags.

Definition at line 1974 of file impexp.c.

References DUMP_DATA::db, indent(), DUMP_DATA::indent, DUMP_DATA::nlines, DUMP_DATA::out, DUMP_DATA::quote_mode, quote_xml_str(), schema_dump(), DUMP_DATA::where, and DUMP_DATA::with_schema.

int impexp_import_sql ( sqlite3 *  db,
char *  filename 
)

Reads SQL commands from filename and executes them against the current database.

Returns the number of changes to the current database.

Parameters:
db SQLite database pointer
filename name of input file
Returns:
number of changes to database

Definition at line 869 of file impexp.c.

References process_input().

int impexp_init ( sqlite3 *  db  ) 

Registers the SQLite functions.

Parameters:
db SQLite database pointer
Returns:
SQLite error code
Registered functions:

  import_sql(filename)
  export_sql(filename, [mode, tablename, ...])
  export_csv(filename, hdr, prefix1, tablename1, schema1, ...)
  export_xml(filename, appendflg, indent, [root, item, tablename, schema]+)
  export_json(filename, sql)

On Win32 the filename argument may be specified as NULL in order to open a system file dialog for interactive filename selection.

Definition at line 2521 of file impexp.c.

References sqlite3_extension_init().

static void import_func ( sqlite3_context *  ctx,
int  nargs,
sqlite3_value **  args 
) [static]

SQLite function to read and process SQL commands from a file.

Parameters:
ctx SQLite function context
nargs number of arguments
args argument vector

Definition at line 822 of file impexp.c.

References process_input().

Referenced by sqlite3_extension_init().

static void indent ( DUMP_DATA *  dd  )  [static]

Write indentation to dump.

Parameters:
dd information structure for dump

Definition at line 932 of file impexp.c.

References DUMP_DATA::indent, and DUMP_DATA::out.

Referenced by export_xml_func(), and impexp_export_xml().

static void indent_xml_func ( sqlite3_context *  context,
int  argc,
sqlite3_value **  argv 
) [static]

SQLite function to make XML indentation.

Parameters:
context SQLite function context
argc number of arguments
argv argument vector

Definition at line 629 of file impexp.c.

Referenced by sqlite3_extension_init().

static int json_output ( sqlite3 *  db,
char *  sql,
impexp_putc  pfunc,
void *  parg 
) [static]

Execute SQL and write output as JSON.

Parameters:
db SQLite database pointer
sql SQL text
pfunc JSON output function
parg argument for output function
Returns:
SQLite error code

Definition at line 2261 of file impexp.c.

References json_pb64(), json_pstr(), json_pstrc(), json_pstrq(), json_pfs::parg, and json_pfs::pfunc.

Referenced by export_json_func(), and impexp_export_json().

static void json_pb64 ( const unsigned char *  blk,
int  len,
json_pfs *  pfs 
) [static]

Write a blob as base64 string using JSON output function.

Parameters:
blk pointer to blob
len length of blob
pfs JSON output function

Definition at line 2208 of file impexp.c.

References json_pstr(), json_pfs::parg, and json_pfs::pfunc.

Referenced by json_output().

static void json_pstr ( const char *  string,
json_pfs *  pfs 
) [static]

Write string using JSON output function.

Parameters:
string string to be written
pfs JSON output function

Definition at line 2053 of file impexp.c.

References json_pfs::parg, and json_pfs::pfunc.

Referenced by json_output(), json_pb64(), json_pstrc(), and json_pstrq().

static void json_pstrc ( const char *  string,
json_pfs *  pfs 
) [static]

Conditionally quote and write string using JSON output function.

Parameters:
string string to be written
pfs JSON output function

Definition at line 2191 of file impexp.c.

References json_pstr(), and json_pstrq().

Referenced by json_output().

static void json_pstrq ( const char *  string,
json_pfs *  pfs 
) [static]

Quote and write string using JSON output function.

Parameters:
string string to be written
pfs JSON output function

Definition at line 2068 of file impexp.c.

References json_pstr(), json_pfs::parg, and json_pfs::pfunc.

Referenced by json_output(), and json_pstrc().

static char* one_input_line ( FILE *  fin  )  [static]

Read one line of input into dynamically allocated buffer which the caller must free with sqlite3_free().

Parameters:
fin FILE pointer
Returns:
dynamically allocated input line

Definition at line 229 of file impexp.c.

Referenced by process_input().

static int process_input ( sqlite3 *  db,
FILE *  fin 
) [static]

Process contents of FILE pointer as SQL commands.

Parameters:
db SQLite database to work on
fin input FILE pointer
Returns:
number of errors

Definition at line 341 of file impexp.c.

References all_whitespace(), ends_with_semicolon(), ISSPACE, and one_input_line().

Referenced by impexp_import_sql(), and import_func().

static void quote_csv_func ( sqlite3_context *  context,
int  argc,
sqlite3_value **  argv 
) [static]

SQLite function to quote an SQLite value in CSV format.

Parameters:
context SQLite function context
argc number of arguments
argv argument vector

Definition at line 540 of file impexp.c.

References xdigits.

Referenced by sqlite3_extension_init().

static void quote_func ( sqlite3_context *  context,
int  argc,
sqlite3_value **  argv 
) [static]

SQLite function to quote SQLite value depending on optional quote mode.

Parameters:
context SQLite function context
argc number of arguments
argv argument vector
Layout of arguments:

argv[0] - value to be quoted
argv[1] - value of quote mode (optional)

Definition at line 420 of file impexp.c.

References xdigits.

Referenced by sqlite3_extension_init().

static void quote_xml_func ( sqlite3_context *  context,
int  argc,
sqlite3_value **  argv 
) [static]

SQLite function to quote a string for XML.

Parameters:
context SQLite function context
argc number of arguments
argv argument vector

Definition at line 653 of file impexp.c.

References xdigits.

Referenced by sqlite3_extension_init().

static void quote_xml_str ( DUMP_DATA *  dd,
char *  str 
) [static]

Quote string for XML output during dump.

Parameters:
dd information structure for dump
str string to be output

Definition at line 1104 of file impexp.c.

References DUMP_DATA::out, and xdigits.

Referenced by export_xml_func(), and impexp_export_xml().

static int schema_dump ( DUMP_DATA *  dd,
char **  errp,
const char *  query,
  ... 
) [static]

Execute SQL on sqlite_master table in order to dump data.

Parameters:
dd information structure for dump
errp pointer receiving error message
query SQL for sqlite3_*printf()
... argument list
Returns:
SQLite error code

Definition at line 1455 of file impexp.c.

References DUMP_DATA::db, and dump_cb().

Referenced by export_csv_func(), export_func(), export_xml_func(), impexp_export_csv(), impexp_export_sql(), and impexp_export_xml().

int sqlite3_extension_init ( sqlite3 *  db,
char **  errmsg,
const sqlite3_api_routines *  api 
)

Initializer for SQLite extension load mechanism.

Parameters:
db SQLite database pointer
errmsg pointer receiving error message
api SQLite API routines
Returns:
SQLite error code

Definition at line 2477 of file impexp.c.

References export_csv_func(), export_func(), export_json_func(), export_xml_func(), import_func(), indent_xml_func(), quote_csv_func(), quote_func(), and quote_xml_func().

static int table_dump ( DUMP_DATA *  dd,
char **  errp,
int  fmt,
const char *  query,
  ... 
) [static]

Execute SQL to dump contents of one table.

Parameters:
dd information structure for dump
errp pointer receiving error message
fmt if true, use sqlite3_*printf() on SQL
query SQL text to perform dump of table
... optional arguments
Returns:
SQLite error code

Definition at line 952 of file impexp.c.

References DUMP_DATA::db, DUMP_DATA::nlines, DUMP_DATA::out, and DUMP_DATA::quote_mode.

Referenced by dump_cb(), export_func(), and impexp_export_sql().

Variable Documentation

const char space_chars[] = " \f\n\r\t\v" [static]

Definition at line 217 of file impexp.c.

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Contact: chw@ch-werner.de