mvswitch.cpp

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C++ 代码 · 共 209 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
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*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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****************************************************************************/


#include "mvswitch.hpp"
#include "wobjfile.hpp"
#include "mvstate.hpp"

Define( MVSwitch )

MVSwitch::MVSwitch( WTokenFile& fil, WString& tok )
    : MSwitch( fil, tok )
    , _optional( FALSE )
    , _multiple( FALSE )
    , _quote( '\'' )
{
    fil.token( _on );
    fil.token( _connector );
    _multiple = ( fil.token( tok ) == "MULTI" );
    _optional = TRUE;
    WString value;
    bool state = FALSE;
    for( int i=0; i<SWMODE_COUNT; i++ ) {
        if( !fil.eol() ) {
            fil.token( tok );
            if( _optional && tok == "ON" ) {
                state = TRUE;
                fil.token( value );
            } else if( _optional && tok == "OFF" ) {
                state = FALSE;
                fil.token( value );
            } else if( _optional && tok == "REQ" ) {
                _optional = FALSE;
                fil.token( value );
            } else {
                value = tok;
            }
        }
        _state[ i ] = state;
        _value[ i ] = value;
    }
}

#ifndef NOPERSIST
MVSwitch* WEXPORT MVSwitch::createSelf( WObjectFile& )
{
    return new MVSwitch();
}

void WEXPORT MVSwitch::readSelf( WObjectFile& p )
{
    MSwitch::readSelf( p );
    p.readObject( &_on );
    if( p.version() > 30 ) {
        p.readObject( &_connector );
    }
    if( p.version() > 28 ) {
        for( int i=0; i<SWMODE_COUNT; i++ ) {
            p.readObject( &_value[ i ] );
            p.readObject( &_state[ i ] );
        }
    } else {
        p.readObject( &_value[ SWMODE_RELEASE ] );
        p.readObject( &_state[ SWMODE_RELEASE ] );
        _value[ SWMODE_DEBUG ] = _value[ SWMODE_RELEASE ];
        _state[ SWMODE_DEBUG ] = _state[ SWMODE_RELEASE ];
    }
    if( p.version() > 28 ) {
        p.readObject( &_multiple );
    }
    p.readObject( &_optional );
}

void WEXPORT MVSwitch::writeSelf( WObjectFile& p )
{
    MSwitch::writeSelf( p );
    p.writeObject( &_on );
    p.writeObject( &_connector );
    for( int i=0; i<SWMODE_COUNT; i++ ) {
        p.writeObject( &_value[ i ] );
        p.writeObject( _state[ i ] );
    }
    p.writeObject( _multiple );
    p.writeObject( _optional );
}
#endif

#if 0
static bool needsQuotes( const char* str )
{
    if( str ) {
        for( int i=0; str[i]; i++ ) {
            if( isspace( str[i] ) ) {
                return TRUE;
            }
        }
    }
    return FALSE;
}
#endif

void MVSwitch::addValues( WString& str, WStringList& values, bool& first )
{
    int count = values.count();
    for( int i=0; i<count; i++ ) {
        if( !first ) str.concat( ' ' );
        first = FALSE;
        str.concat( _on );
#if 1
        WString& val = values.stringAt( i );
        WString fmt( _connector );
        fmt.concat( "%s" );
        str.concatf( fmt, (const char*)val, "" );
#else
        str.concat( _connector );
        WString& val = values.stringAt( i );
        if( _quote && needsQuotes( val ) ) {
            str.concat( _quote );
            str.concat( val );
            str.concat( _quote );
        } else {
            str.concat( val );
        }
#endif
    }
}

void MVSwitch::addone( WString& str, bool state, WString* value, bool& first )
{
    WStringList values;
    if( _multiple ) {
        values.parseIn( *value );
    } else if( value->size() > 0 ) {
        values.add( new WString( *value ) );
    }
    int count = values.count();
    if( _optional ) {
        if( state ) {
            if( count > 0 ) {
                addValues( str, values, first );
            } else {
                if( !first ) str.concat( ' ' );
                first = FALSE;
                str.concat( _on );
            }
        }
    } else if( count > 0 ) {
        addValues( str, values, first );
    }
}

void MVSwitch::getText( WString& str, MState* state )
{
    bool first = TRUE;
    MVState* st = (MVState*)state;
    addone( str, st->state(), &st->value(), first );
}

void MVSwitch::getText( WString& str, WVList* states, SwMode mode )
{
    WVList found;
    findStates( states, found );
    int icount = found.count();
    bool first = TRUE;
    bool found_match = FALSE;
    if( icount > 0 ) {
        // used to check if( _multiple )
        for( int i=0; i<icount; i++ ) {
            MVState* st = (MVState*)found[i];
            if( st->mode() == mode ) {
                found_match = TRUE;
                addone( str, st->state(), &st->value(), first );
            }
        }
    }
    if( !found_match ) {
        addone( str, _state[ mode ], &_value[ mode ], first );
    }
}