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+/*************************************************************************
+ *
+ * $RCSfile: io.cxx,v $
+ *
+ * $Revision: 1.1.1.1 $
+ *
+ * last change: $Author: hr $ $Date: 2000-09-18 16:12:10 $
+ *
+ * The Contents of this file are made available subject to the terms of
+ * either of the following licenses
+ *
+ * - GNU Lesser General Public License Version 2.1
+ * - Sun Industry Standards Source License Version 1.1
+ *
+ * Sun Microsystems Inc., October, 2000
+ *
+ * GNU Lesser General Public License Version 2.1
+ * =============================================
+ * Copyright 2000 by Sun Microsystems, Inc.
+ * 901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software Foundation.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ *
+ * Sun Industry Standards Source License Version 1.1
+ * =================================================
+ * The contents of this file are subject to the Sun Industry Standards
+ * Source License Version 1.1 (the "License"); You may not use this file
+ * except in compliance with the License. You may obtain a copy of the
+ * License at http://www.openoffice.org/license.html.
+ *
+ * Software provided under this License is provided on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ * See the License for the specific provisions governing your rights and
+ * obligations concerning the Software.
+ *
+ * The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ * Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ * All Rights Reserved.
+ *
+ * Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+
+#ifndef _STREAM_HXX //autogen
+#include <tools/stream.hxx>
+#endif
+#include "sbcomp.hxx"
+#pragma hdrstop
+#include "iosys.hxx"
+
+#include "segmentc.hxx"
+#pragma SW_SEGMENT_CLASS( SBCOMP, SBCOMP_CODE )
+
+// Test, ob ein I/O-Channel angegeben wurde
+
+BOOL SbiParser::Channel( BOOL bAlways )
+{
+ BOOL bRes = FALSE;
+ Peek();
+ if( IsHash() )
+ {
+ SbiExpression aExpr( this );
+ if( Peek() == COMMA ) Next();
+ aExpr.Gen();
+ aGen.Gen( _CHANNEL );
+ bRes = TRUE;
+ }
+ else if( bAlways )
+ Error( SbERR_EXPECTED, "#" );
+ return bRes;
+}
+
+// Fuer PRINT und WRITE wird bei Objektvariablen versucht,
+// die Default-Property anzusprechen.
+
+// PRINT
+
+void SbiParser::Print()
+{
+ BOOL bChan = Channel();
+ // Die Ausdruecke zum Drucken:
+ while( !bAbort )
+ {
+ if( !IsEoln( Peek() ) )
+ {
+ SbiExpression* pExpr = new SbiExpression( this );
+ pExpr->Gen();
+ delete pExpr;
+ Peek();
+ aGen.Gen( eCurTok == COMMA ? _PRINTF : _BPRINT );
+ }
+ if( eCurTok == COMMA || eCurTok == SEMICOLON )
+ {
+ Next();
+ if( IsEoln( Peek() ) ) break;
+ }
+ else
+ {
+ aGen.Gen( _PRCHAR, '\n' );
+ break;
+ }
+ }
+ if( bChan )
+ aGen.Gen( _CHAN0 );
+}
+
+// WRITE #chan, expr, ...
+
+void SbiParser::Write()
+{
+ BOOL bChan = Channel();
+ // Die Ausdruecke zum Drucken:
+ while( !bAbort )
+ {
+ SbiExpression* pExpr = new SbiExpression( this );
+ pExpr->Gen();
+ delete pExpr;
+ aGen.Gen( _BWRITE );
+ if( Peek() == COMMA )
+ {
+ aGen.Gen( _PRCHAR, ',' );
+ Next();
+ if( IsEoln( Peek() ) ) break;
+ }
+ else
+ {
+ aGen.Gen( _PRCHAR, '\n' );
+ break;
+ }
+ }
+ if( bChan )
+ aGen.Gen( _CHAN0 );
+}
+
+// LINE INPUT [prompt], var$
+
+void SbiParser::LineInput()
+{
+ Channel( TRUE );
+ // BOOL bChan = Channel( TRUE );
+ SbiExpression* pExpr = new SbiExpression( this, SbOPERAND );
+ /* AB 15.1.96: Keinen allgemeinen Ausdruck mehr zulassen
+ SbiExpression* pExpr = new SbiExpression( this );
+ if( !pExpr->IsVariable() )
+ {
+ SbiToken eTok = Peek();
+ if( eTok == COMMA || eTok == SEMICOLON ) Next();
+ else Error( SbERR_EXPECTED, COMMA );
+ // mit Prompt
+ if( !bChan )
+ {
+ pExpr->Gen();
+ aGen.Gen( _PROMPT );
+ }
+ else
+ Error( SbERR_VAR_EXPECTED );
+ delete pExpr;
+ pExpr = new SbiExpression( this, SbOPERAND );
+ }
+ */
+ if( !pExpr->IsVariable() )
+ Error( SbERR_VAR_EXPECTED );
+ if( pExpr->GetType() != SbxVARIANT && pExpr->GetType() != SbxSTRING )
+ Error( SbERR_CONVERSION );
+ pExpr->Gen();
+ aGen.Gen( _LINPUT );
+ delete pExpr;
+ aGen.Gen( _CHAN0 ); // ResetChannel() nicht mehr in StepLINPUT()
+}
+
+// INPUT
+
+void SbiParser::Input()
+{
+ aGen.Gen( _RESTART );
+ Channel( TRUE );
+ // BOOL bChan = Channel( TRUE );
+ SbiExpression* pExpr = new SbiExpression( this, SbOPERAND );
+ /* ALT: Jetzt keinen allgemeinen Ausdruck mehr zulassen
+ SbiExpression* pExpr = new SbiExpression( this );
+ ...
+ siehe LineInput
+ */
+ while( !bAbort )
+ {
+ if( !pExpr->IsVariable() )
+ Error( SbERR_VAR_EXPECTED );
+ pExpr->Gen();
+ aGen.Gen( _INPUT );
+ if( Peek() == COMMA )
+ {
+ Next();
+ delete pExpr;
+ pExpr = new SbiExpression( this, SbOPERAND );
+ }
+ else break;
+ }
+ delete pExpr;
+ aGen.Gen( _CHAN0 ); // ResetChannel() nicht mehr in StepINPUT()
+}
+
+// OPEN stringexpr FOR mode ACCCESS access mode AS Channel [Len=n]
+
+void SbiParser::Open()
+{
+ SbiExpression aFileName( this );
+ SbiToken eTok;
+ TestToken( FOR );
+ short nMode = 0;
+ short nFlags = 0;
+ switch( Next() )
+ {
+ case INPUT:
+ nMode = STREAM_READ; nFlags |= SBSTRM_INPUT; break;
+ case OUTPUT:
+ nMode = STREAM_WRITE | STREAM_TRUNC; nFlags |= SBSTRM_OUTPUT; break;
+ case APPEND:
+ nMode = STREAM_WRITE; nFlags |= SBSTRM_APPEND; break;
+ case RANDOM:
+ nMode = STREAM_READ | STREAM_WRITE; nFlags |= SBSTRM_RANDOM; break;
+ case BINARY:
+ nMode = STREAM_READ | STREAM_WRITE; nFlags |= SBSTRM_BINARY; break;
+ default:
+ Error( SbERR_SYNTAX );
+ }
+ if( Peek() == ACCESS )
+ {
+ Next();
+ eTok = Next();
+ // #27964# Nur STREAM_READ,STREAM_WRITE-Flags in nMode beeinflussen
+ nMode &= ~(STREAM_READ | STREAM_WRITE); // loeschen
+ if( eTok == READ )
+ {
+ if( Peek() == WRITE )
+ {
+ Next();
+ nMode |= (STREAM_READ | STREAM_WRITE);
+ }
+ else
+ nMode |= STREAM_READ;
+ }
+ else if( eTok == WRITE )
+ nMode |= STREAM_WRITE;
+ else
+ Error( SbERR_SYNTAX );
+ }
+ switch( Peek() )
+ {
+#ifdef SHARED
+#undef SHARED
+#define tmpSHARED
+#endif
+ case SHARED:
+ Next(); nMode |= STREAM_SHARE_DENYNONE; break;
+#ifdef tmpSHARED
+#define SHARED
+#undef tmpSHARED
+#endif
+ case LOCK:
+ Next();
+ eTok = Next();
+ if( eTok == READ )
+ {
+ if( Peek() == WRITE ) Next(), nMode |= STREAM_SHARE_DENYALL;
+ else nMode |= STREAM_SHARE_DENYREAD;
+ }
+ else if( eTok == WRITE )
+ nMode |= STREAM_SHARE_DENYWRITE;
+ else
+ Error( SbERR_SYNTAX );
+ break;
+ }
+ TestToken( AS );
+ // Die Kanalnummer
+ SbiExpression* pChan = new SbiExpression( this );
+ if( !pChan )
+ Error( SbERR_SYNTAX );
+ SbiExpression* pLen = NULL;
+ if( Peek() == SYMBOL )
+ {
+ Next();
+ String aLen( aSym );
+ if( aLen.EqualsIgnoreCaseAscii( "LEN" ) )
+ {
+ TestToken( EQ );
+ pLen = new SbiExpression( this );
+ }
+ }
+ if( !pLen ) pLen = new SbiExpression( this, 128, SbxINTEGER );
+ // Der Stack fuer den OPEN-Befehl sieht wie folgt aus:
+ // Blocklaenge
+ // Kanalnummer
+ // Dateiname
+ pLen->Gen();
+ if( pChan )
+ pChan->Gen();
+ aFileName.Gen();
+ aGen.Gen( _OPEN, nMode, nFlags );
+ delete pLen;
+ delete pChan;
+}
+
+// NAME file AS file
+
+void SbiParser::Name()
+{
+ SbiExpression aExpr1( this );
+ TestToken( AS );
+ SbiExpression aExpr2( this );
+ aExpr1.Gen();
+ aExpr2.Gen();
+ aGen.Gen( _RENAME );
+}
+
+// CLOSE [n,...]
+
+void SbiParser::Close()
+{
+ Peek();
+ if( IsEoln( eCurTok ) )
+ aGen.Gen( _CLOSE, 0 );
+ else
+ for( ;; )
+ {
+ if( Channel( TRUE ) )
+ aGen.Gen( _CLOSE, 1 );
+ else
+ break;
+ if( IsEoln( Peek() ) )
+ break;
+ }
+}
+
+