/****************************************************************************** * $Id: ogrrecdatasource.cpp 10646 2007-01-18 02:38:10Z warmerdam $ * * Project:  Epiinfo .REC Translator * Purpose:  Implements OGRRECDataSource class * Author:   Frank Warmerdam, warmerdam@pobox.com * ****************************************************************************** * Copyright (c) 2003, Frank Warmerdam <warmerdam@pobox.com> * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. ****************************************************************************/#include "ogr_rec.h"#include "cpl_conv.h"#include "cpl_string.h"CPL_CVSID("$Id: ogrrecdatasource.cpp 10646 2007-01-18 02:38:10Z warmerdam $");/************************************************************************//*                          OGRRECDataSource()                          *//************************************************************************/OGRRECDataSource::OGRRECDataSource(){    poLayer = NULL;    pszName = NULL;}/************************************************************************//*                         ~OGRRECDataSource()                          *//************************************************************************/OGRRECDataSource::~OGRRECDataSource(){    if( poLayer != NULL )        delete poLayer;    CPLFree( pszName );}/************************************************************************//*                           TestCapability()                           *//************************************************************************/int OGRRECDataSource::TestCapability( const char * ){    return FALSE;}/************************************************************************//*                              GetLayer()                              *//************************************************************************/OGRLayer *OGRRECDataSource::GetLayer( int iLayer ){    if( iLayer == 0 )        return poLayer;    else        return NULL;}/************************************************************************//*                                Open()                                *//************************************************************************/int OGRRECDataSource::Open( const char * pszFilename ){    pszName = CPLStrdup( pszFilename );    /* -------------------------------------------------------------------- *//*      Verify that the extension is REC.                               *//* -------------------------------------------------------------------- */    if( !EQUAL(pszFilename+strlen(pszFilename)-4,".rec") )        return FALSE;    /* -------------------------------------------------------------------- *//*      Open the file.                                                  *//* -------------------------------------------------------------------- */    const char * pszLine;    FILE       * fp;    fp = VSIFOpen( pszFilename, "r" );    if( fp == NULL )        return FALSE;    /* -------------------------------------------------------------------- *//*      Read a line, and verify that it consists of at least one        *//*      field that is a number greater than zero.                       *//* -------------------------------------------------------------------- */    int  nFieldCount;    pszLine = CPLReadLine( fp );    nFieldCount = atoi(pszLine);    if( nFieldCount < 1 || nFieldCount > 1000 )    {        VSIFClose( fp );        return FALSE;    }/* -------------------------------------------------------------------- *//*      Create a layer.                                                 *//* -------------------------------------------------------------------- */    poLayer = new OGRRECLayer( CPLGetBasename(pszFilename), fp, nFieldCount );    return poLayer->IsValid();}