C++ CPLString::Trim方法代码示例

本文整理汇总了C++中CPLString::Trim方法的典型用法代码示例。如果您正苦于以下问题：C++ CPLString::Trim方法的具体用法？C++ CPLString::Trim怎么用？C++ CPLString::Trim使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CPLString的用法示例。

在下文中一共展示了CPLString::Trim方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: osStatement

/*
 * ExecuteSQL()
 */
OGRLayer *OGRNGWDataset::ExecuteSQL( const char *pszStatement,
    OGRGeometry *poSpatialFilter, const char *pszDialect )
{
    // Clean statement string.
    CPLString osStatement(pszStatement);
    osStatement = osStatement.Trim().replaceAll("  ", " ");

    if( STARTS_WITH_CI(osStatement.c_str(), "DELLAYER:") )
    {
        CPLString osLayerName = osStatement.substr(9);
        if( osLayerName.endsWith(";") )
        {
            osLayerName = osLayerName.substr(0, osLayerName.size() - 1);
            osLayerName.Trim();
        }

        CPLDebug("NGW", "Delete layer with name %s.", osLayerName.c_str());

        for( int iLayer = 0; iLayer < nLayers; ++iLayer )
        {
            if( EQUAL(papoLayers[iLayer]->GetName(), osLayerName.c_str() ) )
            {
                DeleteLayer( iLayer );
                break;
            }
        }
        return nullptr;
    }

    if( STARTS_WITH_CI(osStatement.c_str(), "DELETE FROM") )
    {
        // Get layer name from pszStatement DELETE FROM layer;.
        CPLString osLayerName = osStatement.substr(12);
        if( osLayerName.endsWith(";") )
        {
            osLayerName = osLayerName.substr(0, osLayerName.size() - 1);
            osLayerName.Trim();
        }

        CPLDebug("NGW", "Delete features from layer with name %s.", osLayerName.c_str());

        OGRNGWLayer *poLayer = static_cast<OGRNGWLayer*>(GetLayerByName(osLayerName));
        if( poLayer )
        {
            poLayer->DeleteAllFeatures();
        }
        else
        {
            CPLError(CE_Failure, CPLE_AppDefined, "Unknown layer : %s",
                osLayerName.c_str());
        }
        return nullptr;
    }
    return GDALDataset::ExecuteSQL(pszStatement, poSpatialFilter, pszDialect);
}

开发者ID:，项目名称:，代码行数:58，代码来源:

示例2: SetMetadataItem

void NTv2Dataset::CaptureMetadataItem( char *pszItem )

{
    CPLString osKey;
    CPLString osValue;

    osKey.assign( pszItem, 8 );
    osValue.assign( pszItem+8, 8 );

    SetMetadataItem( osKey.Trim(), osValue.Trim() );
}

开发者ID:bbradbury，项目名称:lib_gdal，代码行数:11，代码来源:ntv2dataset.cpp

示例3: oStatement

OGRFeatureDefn *OGRIngresTableLayer::ReadTableDefinition( const char *pszTable )

{
    poDS->EstablishActiveLayer( NULL );

/* -------------------------------------------------------------------- */
/*      Fire off commands to get back the schema of the table.          */
/* -------------------------------------------------------------------- */
    CPLString osCommand;
    OGRIngresStatement oStatement( poDS->GetConn() );

    osCommand.Printf( "select column_name, column_datatype, column_length, "
                      "column_scale, column_ingdatatype, "
                      "column_internal_datatype "
                      "from iicolumns where table_name = '%s'", 
                      pszTable );

    if( !oStatement.ExecuteSQL( osCommand ) )
    {
        return NULL;
    }

/* -------------------------------------------------------------------- */
/*      Parse the returned table information.                           */
/* -------------------------------------------------------------------- */
    OGRFeatureDefn *poDefn = new OGRFeatureDefn( pszTable );
    char           **papszRow;

    poDefn->Reference();
    poDefn->SetGeomType( wkbNone );

    while( (papszRow = oStatement.GetRow()) != NULL )
    {
        CPLString       osFieldName = papszRow[0];
        CPLString       osIngresType = papszRow[1];
        CPLString       osInternalType = papszRow[5];
        GInt32          nWidth, nScale;

        osIngresType.Trim();
        osFieldName.Trim();
        osInternalType.Trim();

        memcpy( &nWidth, papszRow[2], 4 );
        memcpy( &nScale, papszRow[3], 4 );

        OGRFieldDefn    oField(osFieldName, OFTString);

        if( osGeomColumn.size() == 0
            && (EQUAL(osInternalType,"POINT")
                || EQUAL(osInternalType,"IPOINT")
                || EQUAL(osInternalType,"BOX")
                || EQUAL(osInternalType,"IBOX")
                || EQUAL(osInternalType,"LSEG")
                || EQUAL(osInternalType,"ILSEG")
                || EQUAL(osInternalType,"LINE")
                || EQUAL(osInternalType,"ILINE")
                || EQUAL(osInternalType,"LONG LINE")
                || EQUAL(osInternalType,"POLYGON")
                || EQUAL(osInternalType,"IPOLYGON")
                || EQUAL(osInternalType,"LONG POLYGON")
                || EQUAL(osInternalType,"CIRCLE")
                || EQUAL(osInternalType,"LINESTRING")
                || EQUAL(osInternalType,"MULTIPOINT")
                || EQUAL(osInternalType,"MULTIPOLYGON")
                || EQUAL(osInternalType,"MULTILINESTRING")
                || EQUAL(osInternalType,"GEOMETRYCOLLECTION")
                || EQUAL(osInternalType,"ICIRCLE")) )
        {
            osGeomColumn = osFieldName;
            osIngresGeomType = osInternalType;
            
            if( strstr(osInternalType,"POINT") )
                poDefn->SetGeomType( wkbPoint );
            else if( strstr(osInternalType,"LINE")
                     || strstr(osInternalType,"SEG")
                     || strstr(osInternalType, "LINESTRING"))
                poDefn->SetGeomType( wkbLineString );
            else if( strstr(osInternalType,"MULTIPOINT"))
            	poDefn->SetGeomType(wkbMultiPoint);
            else if( strstr(osInternalType,"MULTIPOLYGON"))
            	poDefn->SetGeomType(wkbMultiPolygon);
            else if( strstr(osInternalType,"MULTILINESTRING"))
            	poDefn->SetGeomType(wkbMultiLineString);
            // Oddly this is the standin for a generic geometry type.
            else if( strstr(osInternalType,"GEOMETRYCOLLECTION"))
            	poDefn->SetGeomType(wkbUnknown);
            else
                poDefn->SetGeomType( wkbPolygon );
            continue;
        }
        else if( EQUALN(osIngresType,"byte",4) 
            || EQUALN(osIngresType,"long byte",9) )
        {
            oField.SetType( OFTBinary );
        }
        else if( EQUALN(osIngresType,"varchar",7) 
                 || EQUAL(osIngresType,"text") 
                 || EQUALN(osIngresType,"long varchar",12) )
        {
            oField.SetType( OFTString );
//.........这里部分代码省略.........

开发者ID:imincik，项目名称:pkg-gdal，代码行数:101，代码来源:ogringrestablelayer.cpp

示例4: atoi


//.........这里部分代码省略.........
        delete poDS;
        return NULL;
    }

    poDS->CaptureMetadataItem( achHeader + 3*16 );
    poDS->CaptureMetadataItem( achHeader + 4*16 );
    poDS->CaptureMetadataItem( achHeader + 5*16 );
    poDS->CaptureMetadataItem( achHeader + 6*16 );

    memcpy( &dfValue, achHeader + 7*16 + 8, 8 );
    CPL_LSBPTR64( &dfValue );
    osFValue.Printf( "%.15g", dfValue );
    poDS->SetMetadataItem( "MAJOR_F", osFValue );
    
    memcpy( &dfValue, achHeader + 8*16 + 8, 8 );
    CPL_LSBPTR64( &dfValue );
    osFValue.Printf( "%.15g", dfValue );
    poDS->SetMetadataItem( "MINOR_F", osFValue );
    
    memcpy( &dfValue, achHeader + 9*16 + 8, 8 );
    CPL_LSBPTR64( &dfValue );
    osFValue.Printf( "%.15g", dfValue );
    poDS->SetMetadataItem( "MAJOR_T", osFValue );
    
    memcpy( &dfValue, achHeader + 10*16 + 8, 8 );
    CPL_LSBPTR64( &dfValue );
    osFValue.Printf( "%.15g", dfValue );
    poDS->SetMetadataItem( "MINOR_T", osFValue );

/* ==================================================================== */
/*      Loop over grids.                                                */
/* ==================================================================== */
    int iGrid;
    vsi_l_offset nGridOffset = sizeof(achHeader);

    for( iGrid = 0; iGrid < nSubFileCount; iGrid++ )
    {
        CPLString  osSubName;
        int i;
        GUInt32 nGSCount;

        VSIFSeekL( poDS->fpImage, nGridOffset, SEEK_SET );
        if (VSIFReadL( achHeader, 11, 16, poDS->fpImage ) != 16)
        {
            CPLError(CE_Failure, CPLE_AppDefined,
                     "Cannot read header for subfile %d", iGrid);
            delete poDS;
            return NULL;
        }

        for( i = 4; i <= 9; i++ )
            CPL_LSBPTR64( achHeader + i*16 + 8 );
        
        CPL_LSBPTR32( achHeader + 10*16 + 8 );
        
        memcpy( &nGSCount, achHeader + 10*16 + 8, 4 );

        osSubName.assign( achHeader + 8, 8 );
        osSubName.Trim();

        // If this is our target grid, open it as a dataset.
        if( iTargetGrid == iGrid || (iTargetGrid == -1 && iGrid == 0) )
        {
            if( !poDS->OpenGrid( achHeader, nGridOffset ) )
            {
                delete poDS;
                return NULL;
            }
        }

        // If we are opening the file as a whole, list subdatasets.
        if( iTargetGrid == -1 )
        {
            CPLString osKey, osValue;

            osKey.Printf( "SUBDATASET_%d_NAME", iGrid );
            osValue.Printf( "NTv2:%d:%s", iGrid, osFilename.c_str() );
            poDS->SetMetadataItem( osKey, osValue, "SUBDATASETS" );

            osKey.Printf( "SUBDATASET_%d_DESC", iGrid );
            osValue.Printf( "%s", osSubName.c_str() );
            poDS->SetMetadataItem( osKey, osValue, "SUBDATASETS" );
        }

        nGridOffset += (11+(vsi_l_offset)nGSCount) * 16;
    }

/* -------------------------------------------------------------------- */
/*      Initialize any PAM information.                                 */
/* -------------------------------------------------------------------- */
    poDS->SetDescription( poOpenInfo->pszFilename );
    poDS->TryLoadXML();

/* -------------------------------------------------------------------- */
/*      Check for overviews.                                            */
/* -------------------------------------------------------------------- */
    poDS->oOvManager.Initialize( poDS, poOpenInfo->pszFilename );

    return( poDS );
}

开发者ID:garnertb，项目名称:gdal，代码行数:101，代码来源:ntv2dataset.cpp

示例5: RawRasterBand

GDALDataset *CTable2Dataset::Open( GDALOpenInfo * poOpenInfo )

{
    if( !Identify( poOpenInfo ) )
        return NULL;

/* -------------------------------------------------------------------- */
/*      Create a corresponding GDALDataset.                             */
/* -------------------------------------------------------------------- */
    CTable2Dataset *poDS = new CTable2Dataset();
    poDS->eAccess = poOpenInfo->eAccess;

/* -------------------------------------------------------------------- */
/*      Open the file.                                                  */
/* -------------------------------------------------------------------- */
    CPLString osFilename = poOpenInfo->pszFilename;

    if( poOpenInfo->eAccess == GA_ReadOnly )
        poDS->fpImage = VSIFOpenL( osFilename, "rb" );
    else
        poDS->fpImage = VSIFOpenL( osFilename, "rb+" );

    if( poDS->fpImage == NULL )
    {
        delete poDS;
        return NULL;
    }

/* -------------------------------------------------------------------- */
/*      Read the file header.                                           */
/* -------------------------------------------------------------------- */

    CPL_IGNORE_RET_VAL(VSIFSeekL( poDS->fpImage, 0, SEEK_SET ));

    char achHeader[160] = { '\0' };
    CPL_IGNORE_RET_VAL(VSIFReadL( achHeader, 1, 160, poDS->fpImage ));
    achHeader[16+79] = '\0';

    CPLString osDescription = reinterpret_cast<const char *>( achHeader + 16 );
    osDescription.Trim();
    poDS->SetMetadataItem( "DESCRIPTION", osDescription );

/* -------------------------------------------------------------------- */
/*      Convert from LSB to local machine byte order.                   */
/* -------------------------------------------------------------------- */
    CPL_LSBPTR64( achHeader + 96 );
    CPL_LSBPTR64( achHeader + 104 );
    CPL_LSBPTR64( achHeader + 112 );
    CPL_LSBPTR64( achHeader + 120 );
    CPL_LSBPTR32( achHeader + 128 );
    CPL_LSBPTR32( achHeader + 132 );

/* -------------------------------------------------------------------- */
/*      Extract size, and geotransform.                                 */
/* -------------------------------------------------------------------- */
    int nRasterXSize, nRasterYSize;
    memcpy( &nRasterXSize, achHeader + 128, 4 );
    memcpy( &nRasterYSize, achHeader + 132, 4 );
    if (!GDALCheckDatasetDimensions(nRasterXSize, nRasterYSize))
    {
        delete poDS;
        return NULL;
    }

    poDS->nRasterXSize = nRasterXSize;
    poDS->nRasterYSize = nRasterYSize;

    double adfValues[4];
    memcpy( adfValues, achHeader + 96, sizeof(double)*4 );

    for( int i = 0; i < 4; i++ )
        adfValues[i] *= 180/M_PI; // Radians to degrees.

    poDS->adfGeoTransform[0] = adfValues[0] - adfValues[2]*0.5;
    poDS->adfGeoTransform[1] = adfValues[2];
    poDS->adfGeoTransform[2] = 0.0;
    poDS->adfGeoTransform[3] = adfValues[1] + adfValues[3]*(nRasterYSize-0.5);
    poDS->adfGeoTransform[4] = 0.0;
    poDS->adfGeoTransform[5] = -adfValues[3];

/* -------------------------------------------------------------------- */
/*      Setup the bands.                                                */
/* -------------------------------------------------------------------- */
    RawRasterBand *poBand =
        new RawRasterBand( poDS, 1, poDS->fpImage,
                           160 + 4 + nRasterXSize * (nRasterYSize-1) * 2 * 4,
                           8, -8 * nRasterXSize,
                           GDT_Float32, CPL_IS_LSB, TRUE, FALSE );
    poBand->SetDescription( "Latitude Offset (radians)" );
    poDS->SetBand( 1, poBand );

    poBand =
        new RawRasterBand( poDS, 2, poDS->fpImage,
                           160 + nRasterXSize * (nRasterYSize-1) * 2 * 4,
                           8, -8 * nRasterXSize,
                           GDT_Float32, CPL_IS_LSB, TRUE, FALSE );
    poBand->SetDescription( "Longitude Offset (radians)" );
    poDS->SetBand( 2, poBand );

/* -------------------------------------------------------------------- */
//.........这里部分代码省略.........

开发者ID:Wedjaa，项目名称:node-gdal，代码行数:101，代码来源:ctable2dataset.cpp

示例6: ParseChildren

int ERSHdrNode::ParseChildren( VSILFILE * fp, int nRecLevel )

{
    if( nRecLevel == 100 ) // arbitrary limit
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "Too many recursion level while parsing .ers header");
        return false;
    }

    while( true )
    {
/* -------------------------------------------------------------------- */
/*      Read the next line (or multi-line for bracketed value).         */
/* -------------------------------------------------------------------- */
        CPLString osLine;

        if( !ReadLine( fp, osLine ) )
            return FALSE;

/* -------------------------------------------------------------------- */
/*      Got a Name=Value.                                               */
/* -------------------------------------------------------------------- */
        size_t iOff;

        if( (iOff = osLine.find_first_of( '=' )) != std::string::npos )
        {
            CPLString osName = osLine.substr(0,iOff-1);
            osName.Trim();

            CPLString osValue = osLine.c_str() + iOff + 1;
            osValue.Trim();

            MakeSpace();
            papszItemName[nItemCount] = CPLStrdup(osName);
            papszItemValue[nItemCount] = CPLStrdup(osValue);
            papoItemChild[nItemCount] = nullptr;

            nItemCount++;
        }

/* -------------------------------------------------------------------- */
/*      Got a Begin for an object.                                      */
/* -------------------------------------------------------------------- */
        else if( (iOff = osLine.ifind( " Begin" )) != std::string::npos )
        {
            CPLString osName = osLine.substr(0,iOff);
            osName.Trim();

            MakeSpace();
            papszItemName[nItemCount] = CPLStrdup(osName);
            papszItemValue[nItemCount] = nullptr;
            papoItemChild[nItemCount] = new ERSHdrNode();

            nItemCount++;

            if( !papoItemChild[nItemCount-1]->ParseChildren( fp, nRecLevel + 1 ) )
                return FALSE;
        }

/* -------------------------------------------------------------------- */
/*      Got an End for our object.  Well, at least we *assume* it       */
/*      must be for our object.                                         */
/* -------------------------------------------------------------------- */
        else if( osLine.ifind( " End" ) != std::string::npos )
        {
            return TRUE;
        }

/* -------------------------------------------------------------------- */
/*      Error?                                                          */
/* -------------------------------------------------------------------- */
        else if( osLine.Trim().length() > 0 )
        {
            CPLError( CE_Failure, CPLE_AppDefined,
                      "Unexpected line parsing .ecw:\n%s",
                      osLine.c_str() );
            return FALSE;
        }
    }
}

开发者ID:AsgerPetersen，项目名称:gdal，代码行数:81，代码来源:ershdrnode.cpp

示例7: Open


//.........这里部分代码省略.........
    }
    
/* -------------------------------------------------------------------- */
/*      Try to connect to the database.                                 */
/* -------------------------------------------------------------------- */
    IIAPI_CONNPARM	connParm;
    IIAPI_WAITPARM	waitParm = { -1 };
    
    memset( &connParm, 0, sizeof(connParm) );
    connParm.co_genParm.gp_callback = NULL;
    connParm.co_genParm.gp_closure = NULL;
    connParm.co_target = (II_CHAR *) pszDBTarget;
    connParm.co_connHandle = hConn;
    connParm.co_tranHandle = NULL;
    connParm.co_username = 
        (II_CHAR*) CSLFetchNameValue(papszOptions,"username");
    connParm.co_password = 
        (II_CHAR*)CSLFetchNameValue(papszOptions,"password");
    connParm.co_timeout = -1;

    if( CSLFetchNameValue(papszOptions,"timeout") != NULL )
        connParm.co_timeout = atoi(CSLFetchNameValue(papszOptions,"timeout"));

    IIapi_connect( &connParm );
       
    while( connParm.co_genParm.gp_completed == FALSE )
	IIapi_wait( &waitParm );

    hConn = connParm.co_connHandle;

    if( connParm.co_genParm.gp_status != IIAPI_ST_SUCCESS 
        || hConn == NULL )
    {
        OGRIngresStatement::ReportError( &(connParm.co_genParm), 
                                    "Failed to connect to Ingres database." );
        return FALSE;
    }

    pszName = CPLStrdup( pszFullName );
    
    bDSUpdate = bUpdate;

    // Check for new or old Ingres spatial library
    {
    	OGRIngresStatement oStmt( hConn );

    	if( oStmt.ExecuteSQL("SELECT COUNT(*) FROM iicolumns WHERE table_name = 'iiattribute' AND column_name = 'attgeomtype'" ) )
    	{
    		char **papszFields;
    		while( (papszFields = oStmt.GetRow()) )
    		{
    			CPLString osCount = papszFields[0];
    			if( osCount[0] == '0' )
    			{
    				bNewIngres = FALSE;
    			}
    			else
    			{
    				bNewIngres = TRUE;
    			}
    		}
    	}
    }

/* -------------------------------------------------------------------- */
/*      Get a list of available tables.                                 */
/* -------------------------------------------------------------------- */
    if( papszTableNames == NULL )
    {
        OGRIngresStatement oStmt( hConn );
        
        if( oStmt.ExecuteSQL( "select table_name from iitables where system_use = 'U' and table_name not like 'iietab_%'" ) )
        {
            char **papszFields;
            while( (papszFields = oStmt.GetRow()) )
            {
                CPLString osTableName = papszFields[0];
                osTableName.Trim();
                papszTableNames = CSLAddString( papszTableNames, 
                                                osTableName );
            }
        }
    }

/* -------------------------------------------------------------------- */
/*      Get the schema of the available tables.                         */
/* -------------------------------------------------------------------- */
    int iRecord;

    for( iRecord = 0; 
         papszTableNames != NULL && papszTableNames[iRecord] != NULL;
         iRecord++ )
    {
        OpenTable( papszTableNames[iRecord], bUpdate );
    }

    CSLDestroy( papszTableNames );

    return TRUE;
}

开发者ID:0004c，项目名称:node-gdal，代码行数:101，代码来源:ogringresdatasource.cpp

示例8: ParseChildren

int ERSHdrNode::ParseChildren( VSILFILE * fp )

{
    while( TRUE )
    { 
        size_t iOff;
        CPLString osLine;

/* -------------------------------------------------------------------- */
/*      Read the next line (or multi-line for bracketed value).         */
/* -------------------------------------------------------------------- */
        if( !ReadLine( fp, osLine ) )
            return FALSE;

/* -------------------------------------------------------------------- */
/*      Got a Name=Value.                                               */
/* -------------------------------------------------------------------- */
        if( (iOff = osLine.find_first_of( '=' )) != std::string::npos )
        {
            CPLString osName = osLine.substr(0,iOff-1);
            osName.Trim();

            CPLString osValue = osLine.c_str() + iOff + 1;
            osValue.Trim();

            MakeSpace();
            papszItemName[nItemCount] = CPLStrdup(osName);
            papszItemValue[nItemCount] = CPLStrdup(osValue);
            papoItemChild[nItemCount] = NULL;

            nItemCount++;
        }

/* -------------------------------------------------------------------- */
/*      Got a Begin for an object.                                      */
/* -------------------------------------------------------------------- */
        else if( (iOff = osLine.ifind( " Begin" )) != std::string::npos )
        {
            CPLString osName = osLine.substr(0,iOff);
            osName.Trim();
            
            MakeSpace();
            papszItemName[nItemCount] = CPLStrdup(osName);
            papszItemValue[nItemCount] = NULL;
            papoItemChild[nItemCount] = new ERSHdrNode();

            nItemCount++;
            
            if( !papoItemChild[nItemCount-1]->ParseChildren( fp ) )
                return FALSE;
        }

/* -------------------------------------------------------------------- */
/*      Got an End for our object.  Well, at least we *assume* it       */
/*      must be for our object.                                         */
/* -------------------------------------------------------------------- */
        else if( osLine.ifind( " End" ) != std::string::npos )
        {
            return TRUE;
        }

/* -------------------------------------------------------------------- */
/*      Error?                                                          */
/* -------------------------------------------------------------------- */
        else if( osLine.Trim().length() > 0 )
        {
            CPLError( CE_Failure, CPLE_AppDefined, 
                      "Unexpected line parsing .ecw:\n%s", 
                      osLine.c_str() );
            return FALSE;
        }
    }
}

开发者ID:Joe-xXx，项目名称:gdal，代码行数:73，代码来源:ershdrnode.cpp

示例9: Open


//.........这里部分代码省略.........
    IIapi_initialize( &initParm );

/* -------------------------------------------------------------------- */
/*      Try to connect to the database.                                 */
/* -------------------------------------------------------------------- */
    IIAPI_CONNPARM	connParm;
    IIAPI_WAITPARM	waitParm = { -1 };
    
    memset( &connParm, 0, sizeof(connParm) );
    connParm.co_genParm.gp_callback = NULL;
    connParm.co_genParm.gp_closure = NULL;
    connParm.co_target = (II_CHAR *) pszDBName;
    connParm.co_connHandle = NULL;
    connParm.co_tranHandle = NULL;
    connParm.co_username = 
        (II_CHAR*) CSLFetchNameValue(papszOptions,"username");
    connParm.co_password = 
        (II_CHAR*)CSLFetchNameValue(papszOptions,"password");
    connParm.co_timeout = -1;

    if( CSLFetchNameValue(papszOptions,"timeout") != NULL )
        connParm.co_timeout = atoi(CSLFetchNameValue(papszOptions,"timeout"));

    IIapi_connect( &connParm );
       
    while( connParm.co_genParm.gp_completed == FALSE )
	IIapi_wait( &waitParm );

    hConn = connParm.co_connHandle;

    if( connParm.co_genParm.gp_status != IIAPI_ST_SUCCESS 
        || hConn == NULL )
    {
        OGRIngresStatement::ReportError( &(connParm.co_genParm), 
                                    "Failed to connect to Ingres database." );
        return FALSE;
    }

    pszName = CPLStrdup( pszFullName );
    
    bDSUpdate = bUpdate;

    // Check for new or old Ingres spatial library
    {
    	OGRIngresStatement oStmt( hConn );

    	if( oStmt.ExecuteSQL("SELECT COUNT(*) FROM iicolumns WHERE table_name = 'iiattribute' AND column_name = 'attgeomtype'" ) )
    	{
    		char **papszFields;
    		while( (papszFields = oStmt.GetRow()) )
    		{
    			CPLString osCount = papszFields[0];
    			if( osCount[0] == '0' )
    			{
    				bNewIngres = FALSE;
    			}
    			else
    			{
    				bNewIngres = TRUE;
    			}
    		}
    	}
    }

/* -------------------------------------------------------------------- */
/*      Get a list of available tables.                                 */
/* -------------------------------------------------------------------- */
    if( papszTableNames == NULL )
    {
        OGRIngresStatement oStmt( hConn );
        
        if( oStmt.ExecuteSQL( "select table_name from iitables where system_use = 'U' and table_name not like 'iietab_%'" ) )
        {
            char **papszFields;
            while( (papszFields = oStmt.GetRow()) )
            {
                CPLString osTableName = papszFields[0];
                osTableName.Trim();
                papszTableNames = CSLAddString( papszTableNames, 
                                                osTableName );
            }
        }
    }

/* -------------------------------------------------------------------- */
/*      Get the schema of the available tables.                         */
/* -------------------------------------------------------------------- */
    int iRecord;

    for( iRecord = 0; 
         papszTableNames != NULL && papszTableNames[iRecord] != NULL;
         iRecord++ )
    {
        OpenTable( papszTableNames[iRecord], bUpdate );
    }

    CSLDestroy( papszTableNames );

    return TRUE;
}

开发者ID:AsherBond，项目名称:MondocosmOS，代码行数:101，代码来源:ogringresdatasource.cpp

注：本文中的CPLString::Trim方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。