#include <assert.h>

#include <set>

#include "cllazyfile/lazyP21DataSectionReader.h"

#include "cllazyfile/lazyInstMgr.h"

lazyP21DataSectionReader::lazyP21DataSectionReader( lazyFileReader * parent, std::ifstream & file,

std::streampos start, sectionID sid ):

lazyDataSectionReader( parent, file, start, sid ) {

findSectionStart();

namedLazyInstance nl;

while( nl = nextInstance(), ( ( nl.loc.begin > 0 ) && ( nl.name != 0 ) ) ) {

parent->getInstMgr()->addLazyInstance( nl );

}

if( sectionReader::_error->severity() <= SEVERITY_WARNING ) {

sectionReader::_error->PrintContents( std::cerr );

if( sectionReader::_error->severity() <= SEVERITY_INPUT_ERROR ) {

_error = true;

return;

}

}

if( !_file.good() ) {

_error = true;

return;

}

if( nl.loc.instance == 0 ) {

//check for ENDSEC;

skipWS();

std::streampos pos = _file.tellg();

if( _file.get() == 'E' && _file.get() == 'N' && _file.get() == 'D'

&& _file.get() == 'S' && _file.get() == 'E' && _file.get() == 'C'

&& ( skipWS(), _file.get() == ';' ) ) {

_sectionEnd = _file.tellg();

} else {

_file.seekg( pos );

char found[26] = { '\0' };

_file.read( found, 25 );

std::cerr << "expected 'ENDSEC;', found " << found << std::endl;

_error = true;

}

}

}

// part of readdata1

//if this changes, probably need to change sectionReader::getType()

const namedLazyInstance lazyP21DataSectionReader::nextInstance() {

std::streampos end = -1;

namedLazyInstance i;

i.refs = 0;

i.loc.section = 0;

i.loc.begin = _file.tellg();

i.loc.instance = readInstanceNumber();

if( ( _file.good() ) && ( i.loc.instance > 0 ) ) {

skipWS();

i.loc.section = _sectionID;

i.name = getDelimitedKeyword( ";( /\\" );

if( _file.good() ) {

end = seekInstanceEnd( & i.refs );

}

}

if( ( i.loc.instance == 0 ) || ( !_file.good() ) || ( end == ( std::streampos ) - 1 ) ) {

//invalid instance, so clear everything

_file.seekg( i.loc.begin );

i.loc.begin = -1;

if( i.refs ) {

delete i.refs;

}

i.name = 0;

}

return i;

}