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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_basic.hxx"
#include <tools/stream.hxx>
#include "sbcomp.hxx"
#include "iosys.hxx"
// Test, ob ein I/O-Channel angegeben wurde
BOOL SbiParser::Channel( BOOL bAlways )
{
BOOL bRes = FALSE;
Peek();
if( IsHash() )
{
SbiExpression aExpr( this );
while( Peek() == COMMA || Peek() == SEMICOLON )
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;
default: 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( ;; )
{
SbiExpression aExpr( this );
while( Peek() == COMMA || Peek() == SEMICOLON )
Next();
aExpr.Gen();
aGen.Gen( _CHANNEL );
aGen.Gen( _CLOSE, 1 );
if( IsEoln( Peek() ) )
break;
}
}
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