SQLite

1.0.18

**
*************************************************************************
** This file contains SQLite's grammar for SQL.  Process this file
** using the lemon parser generator to generate C code that runs
** the parser.  Lemon will also generate a header file containing
** numeric codes for all of the tokens.
**
** @(#) $Id: parse.y,v 1.26 2001/01/04 14:20:18 drh Exp $
*/
%token_prefix TK_
%token_type {Token}
%extra_argument {Parse *pParse}
%syntax_error {
  sqliteSetString(&pParse->zErrMsg,"syntax error",0);
  pParse->sErrToken = TOKEN;

// For the time being, the only constraint we care about is the primary
// key.
//
conslist_opt ::= .
conslist_opt ::= COMMA conslist.
conslist ::= conslist COMMA tcons.
conslist ::= conslist tcons.
conslist ::= tcons.
tcons ::= CONSTRAINT id.

tcons ::= PRIMARY KEY LP idxlist(X) RP. {sqliteCreateIndex(pParse,0,0,X,0,0);}
tcons ::= UNIQUE LP idlist RP.
tcons ::= CHECK expr.
idlist ::= idlist COMMA id.
idlist ::= id.

// The next command format is dropping tables.
//
cmd ::= DROP TABLE id(X).          {sqliteDropTable(pParse,&X);}

**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*************************************************************************
** This file contains code to implement the "sqlite" command line
** utility for accessing SQLite databases.
**
** $Id: shell.c,v 1.28 2001/01/04 14:20:18 drh Exp $
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "sqlite.h"
#include <unistd.h>
#include <ctype.h>

    while( (zLine = one_input_line(zSql, istty))!=0 ){
      if( zLine && zLine[0]=='.' ){
        do_meta_command(zLine, db, &data);
        free(zLine);
        continue;
      }
      if( zSql==0 ){
        int i;
        for(i=0; zLine[i] && isspace(zLine[i]); i++){}
        if( zLine[i]!=0 ){
          nSql = strlen(zLine);
          zSql = malloc( nSql+1 );
          strcpy(zSql, zLine);
        }
      }else{
        int len = strlen(zLine);
        zSql = realloc( zSql, nSql + len + 2 );
        if( zSql==0 ){
          fprintf(stderr,"%s: out of memory!\n", argv0);
          exit(1);
        }
        strcpy(&zSql[nSql++], "\n");
        strcpy(&zSql[nSql], zLine);
        nSql += len;
      }
      free(zLine);
      if( zSql && sqlite_complete(zSql) ){
        data.cnt = 0;
        if( sqlite_exec(db, zSql, callback, &data, &zErrMsg)!=0 
             && zErrMsg!=0 ){
          if( !istty ) printf("%s\n",zSql);
          printf("SQL error: %s\n", zErrMsg);
          free(zErrMsg);
          zErrMsg = 0;
        }
        free(zSql);
        zSql = 0;
        nSql = 0;
      }
    }
  }
  sqlite_close(db);
  return 0;
}

#   drh@hwaci.com
#   http://www.hwaci.com/drh/
#
#***********************************************************************
# This file implements regression tests for SQLite library.  The
# focus of this script is database locks.
#
# $Id: lock.test,v 1.5 2001/01/04 14:20:18 drh Exp $

if {$dbprefix=="gdbm:"} {

set testdir [file dirname $argv0]
source $testdir/tester.tcl

  #
  set f [open update.sql w]
  puts $f ".timeout 0"
  puts $f "UPDATE big SET f2='xyz' WHERE f1=11;"
  puts $f "SELECT f2 FROM big WHERE f1=11;"
  close $f
  exec ./sqlite testdb <update.sql
} "UPDATE big SET f2='xyz' WHERE f1=11;\nSQL error: table big is locked\n22"

do_test lock-1.4 {
  # Try to update the database using a timeout
  #
  set f [open update.sql w]
  puts $f ".timeout 1000"
  puts $f "UPDATE big SET f2='xyz' WHERE f1=11;"
  puts $f "SELECT f2 FROM big WHERE f1=11;"
  close $f
  exec ./sqlite testdb <update.sql
} "UPDATE big SET f2='xyz' WHERE f1=11;\nSQL error: table big is locked\n22"

do_test lock-1.5 {
  # Try to update the database using a timeout
  #
  set f [open update.sql w]
  puts $f ".timeout 10000"
  puts $f "UPDATE big SET f2='xyz' WHERE f1=11;"

}


proc chng {date desc} {
  puts "<DT><B>$date</B></DT>"
  puts "<DD><P><UL>$desc</UL></P></DD>"
}

chng {2001 Jan 4 (1.0.18)} {
<li>Print the offending SQL statement when an error occurs.</li>
<li>Do not require commas between constraints in CREATE TABLE statements.</li>
<li>Changes to comments.</li>
}

chng {2000 Dec 10 (1.0.17)} {
<li>Rewrote <b>sqlite_complete()</b> to make it faster.</li>
<li>Minor tweaks to other code to make it run a little faster.</li>
<li>Added new tests for <b>sqlite_complete()</b> and for memory leaks.</li>
}