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path: root/libopie2/opiedb/osqlitedriver.cpp
authorbrad <brad>2004-04-05 10:58:32 (UTC)
committer brad <brad>2004-04-05 10:58:32 (UTC)
commit0b481957a2eebf28b05d9803780d05ad4232aa00 (patch) (side-by-side diff)
tree85b6b3123f8bbb86a79806ab07d9189c041730ce /libopie2/opiedb/osqlitedriver.cpp
parent900fb3d498891d9aca81c362b2ea3460d1dc3f59 (diff)
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Regex support for sqlite (finally)
Diffstat (limited to 'libopie2/opiedb/osqlitedriver.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r--libopie2/opiedb/osqlitedriver.cpp30
1 files changed, 30 insertions, 0 deletions
diff --git a/libopie2/opiedb/osqlitedriver.cpp b/libopie2/opiedb/osqlitedriver.cpp
index 2c53248..eea1093 100644
--- a/libopie2/opiedb/osqlitedriver.cpp
+++ b/libopie2/opiedb/osqlitedriver.cpp
@@ -1,167 +1,197 @@
/*
                This file is part of the Opie Project
=.
.=l.
           .>+-=
 _;:,     .>    :=|. This program is free software; you can
.> <`_,   >  .   <= redistribute it and/or modify it under
:`=1 )Y*s>-.--   : the terms of the GNU Library General Public
.="- .-=="i,     .._ License as published by the Free Software
 - .   .-<_>     .<> Foundation; either version 2 of the License,
     ._= =}       : or (at your option) any later version.
    .%`+i>       _;_.
    .i_,=:_.      -<s. This program is distributed in the hope that
     +  .  -:.       = it will be useful, but WITHOUT ANY WARRANTY;
    : ..    .:,     . . . without even the implied warranty of
    =_        +     =;=|` MERCHANTABILITY or FITNESS FOR A
  _.=:.       :    :=>`: PARTICULAR PURPOSE. See the GNU
..}^=.=       =       ; Library General Public License for more
++=   -.     .`     .: details.
 :     =  ...= . :.=-
 -.   .:....=;==+<; You should have received a copy of the GNU
  -_. . .   )=.  = Library General Public License along with
    --        :-=` this library; see the file COPYING.LIB.
If not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include "osqlquery.h"
#include "osqlitedriver.h"
#include <opie2/odebug.h>
#include <stdlib.h>
+#include <regex.h>
+#include <stdio.h>
// fromLocal8Bit() does not work as expected. Thus it
// is replaced by fromLatin1() (eilers)
#define __BUGGY_LOCAL8BIT_
using namespace Opie::DB;
using namespace Opie::DB::Internal;
namespace {
struct Query {
OSQLError::ValueList errors;
OSQLResultItem::ValueList items;
OSQLiteDriver *driver;
};
}
OSQLiteDriver::OSQLiteDriver( QLibrary *lib )
: OSQLDriver( lib )
{
m_sqlite = 0l;
}
OSQLiteDriver::~OSQLiteDriver() {
close();
}
QString OSQLiteDriver::id()const {
return QString::fromLatin1("SQLite");
}
void OSQLiteDriver::setUserName( const QString& ) {}
void OSQLiteDriver::setPassword( const QString& ) {}
void OSQLiteDriver::setUrl( const QString& url ) {
m_url = url;
}
void OSQLiteDriver::setOptions( const QStringList& ) {
}
+/*------------------------------------------------------------------/*
+ * Functions to patch a regex search into sqlite
+ * -----------------------------------------------------------------*/
+int sqliteRlikeCompare(const char *zPattern, const char *zString){
+ regex_t regex;
+ int res;
+ if ( zPattern==NULL || zString==NULL ) {
+ printf("One of the args was null!\n");
+ return 0;
+ }
+ res = regcomp(&regex, zPattern, REG_EXTENDED);
+ if ( res != 0 ) {
+ printf("Regcomp failed with code %u on string %s\n",res,zPattern);
+
+ return 0;
+ }
+ res = (regexec(&regex, zString, 0, NULL, 0)==0);
+ regfree(&regex);
+ return res;
+}
+
+void rlikeFunc(sqlite_func *context, int arg, const char **argv){
+ if( argv[0]==0 || argv[1]==0 ) return;
+ sqlite_set_result_int(context,
+ sqliteRlikeCompare((const char*)argv[0],
+ (const char*)argv[1]));
+}
/*
* try to open a db specified via setUrl
* and options
*/
bool OSQLiteDriver::open() {
char *error;
qDebug("OSQLiteDriver::open: about to open");
m_sqlite = sqlite_open(m_url.local8Bit(),
0,
&error );
/* failed to open */
if (m_sqlite == 0l ) {
// FIXME set the last error
qWarning("OSQLiteDriver::open: %s", error );
free( error );
return false;
}
+ sqlite_create_function(m_sqlite,"rlike",2,rlikeFunc,NULL);
return true;
}
/* close the db
* sqlite closes them without
* telling failure or success
*/
bool OSQLiteDriver::close() {
if (m_sqlite )
sqlite_close( m_sqlite ), m_sqlite=0l;
return true;
}
/* Query */
OSQLResult OSQLiteDriver::query( OSQLQuery* qu) {
if ( !m_sqlite ) {
// FIXME set error code
OSQLResult result( OSQLResult::Failure );
return result;
}
Query query;
query.driver = this;
char *err;
/* SQLITE_OK 0 if return code > 0 == failure */
if ( sqlite_exec(m_sqlite, qu->query(),&call_back, &query, &err) > 0 ) {
qWarning("OSQLiteDriver::query: Error while executing");
free(err );
// FixMe Errors
}
OSQLResult result(OSQLResult::Success,
query.items,
query.errors );
return result;
}
OSQLTable::ValueList OSQLiteDriver::tables() const {
}
OSQLError OSQLiteDriver::lastError() {
OSQLError error;
return error;
};
/* handle a callback add the row to the global
* OSQLResultItem
*/
int OSQLiteDriver::handleCallBack( int, char**, char** ) {
return 0;
}
/* callback_handler add the values to the list*/
int OSQLiteDriver::call_back( void* voi, int argc,
char** argv, char** columns) {
Query* qu = (Query*)voi;