Qualifier* Sintactico::ParseQualifier()
{
//Utilizamos Primeros(field-specifier) y Primeros( index )
if ( proximo_token.GetTipo() == punt_punto )
{
return ParseFieldSpecifier();
}
else if ( proximo_token.GetTipo() == punt_corchizq )
{
return ParseIndex();
}
else throw SyntaxException("Falta token de cualificador",analizador_lexico->GetLineaActual() );
}
void PacketStreamReader::SetupIndex()
{
if (!_stream.seekable())
return;
auto pos = _stream.tellg();
_stream.seekg(-(static_cast<istream::off_type>(sizeof(uint64_t)) + TAG_LENGTH), ios_base::end); //a footer is a tag + index position. //todo: this will choke on trailing whitespace. Make it not choke on trailing whitespace.
//todo also: this will break if the footer size changes. Make this more dynamic.
if (_stream.peekTag() == TAG_PANGO_FOOTER)
{
_stream.seekg(ParseFooter()); //parsing the footer returns the index position
if (_stream.peekTag() == TAG_PANGO_STATS)
ParseIndex();
}
_stream.clear();
_stream.seekg(pos);
}
PacketStreamReader::FrameInfo PacketStreamReader::_nextFrame()
{
while (1)
{
auto t = _stream.peekTag();
switch (t)
{
case TAG_PANGO_SYNC:
SkipSync();
break;
case TAG_ADD_SOURCE:
ParseNewSource();
break;
case TAG_SRC_JSON: //frames are sometimes preceded by metadata, but metadata must ALWAYS be followed by a frame from the same source.
case TAG_SRC_PACKET:
return _stream.peekFrameHeader(*this);
case TAG_PANGO_STATS:
ParseIndex();
break;
case TAG_PANGO_FOOTER: //end of frames
case TAG_END:
return FrameInfo(); //none
case TAG_PANGO_HDR: //shoudln't encounter this
ParseHeader();
break;
case TAG_PANGO_MAGIC: //or this
SkipSync();
break;
default: //or anything else
pango_print_warn("Unexpected packet type: \"%s\". Resyncing()\n", tagName(t).c_str());
ReSync();
break;
}
}
}
/*
================
idAASFileLocal::Load
================
*/
bool idAASFileLocal::Load( const idStr &fileName, unsigned int mapFileCRC )
{
idLexer src( LEXFL_NOFATALERRORS | LEXFL_NOSTRINGESCAPECHARS | LEXFL_NOSTRINGCONCAT | LEXFL_ALLOWPATHNAMES );
idToken token;
int depth;
unsigned int c;
name = fileName;
crc = mapFileCRC;
common->Printf( "[Load AAS]\n" );
common->Printf( "loading %s\n", name.c_str() );
if ( !src.LoadFile( name ) )
{
return false;
}
if ( !src.ExpectTokenString( AAS_FILEID ) )
{
common->Warning( "Not an AAS file: '%s'", name.c_str() );
return false;
}
if ( !src.ReadToken( &token ) || token != AAS_FILEVERSION )
{
common->Warning( "AAS file '%s' has version %s instead of %s", name.c_str(), token.c_str(), AAS_FILEVERSION );
return false;
}
if ( !src.ExpectTokenType( TT_NUMBER, TT_INTEGER, &token ) )
{
common->Warning( "AAS file '%s' has no map file CRC", name.c_str() );
return false;
}
c = token.GetUnsignedIntValue();
if ( mapFileCRC && c != mapFileCRC )
{
common->Warning( "AAS file '%s' is out of date", name.c_str() );
return false;
}
// clear the file in memory
Clear();
// parse the file
while ( 1 )
{
if ( !src.ReadToken( &token ) )
{
break;
}
if ( token == "settings" )
{
if ( !settings.FromParser( src ) )
{
return false;
}
}
else if ( token == "planes" )
{
if ( !ParsePlanes( src ) )
{
return false;
}
}
else if ( token == "vertices" )
{
if ( !ParseVertices( src ) )
{
return false;
}
}
else if ( token == "edges" )
{
if ( !ParseEdges( src ) )
{
return false;
}
}
else if ( token == "edgeIndex" )
{
if ( !ParseIndex( src, edgeIndex ) )
{
return false;
}
}
else if ( token == "faces" )
{
if ( !ParseFaces( src ) )
{
return false;
}
}
else if ( token == "faceIndex" )
{
if ( !ParseIndex( src, faceIndex ) )
{
return false;
}
}
else if ( token == "areas" )
{
if ( !ParseAreas( src ) )
{
return false;
}
}
else if ( token == "nodes" )
{
if ( !ParseNodes( src ) )
{
return false;
}
}
else if ( token == "portals" )
{
if ( !ParsePortals( src ) )
{
return false;
}
}
else if ( token == "portalIndex" )
{
if ( !ParseIndex( src, portalIndex ) )
{
return false;
}
}
else if ( token == "clusters" )
{
if ( !ParseClusters( src ) )
{
return false;
}
}
else
{
src.Error( "idAASFileLocal::Load: bad token \"%s\"", token.c_str() );
return false;
}
}
FinishAreas();
depth = MaxTreeDepth();
if ( depth > MAX_AAS_TREE_DEPTH )
{
src.Error( "idAASFileLocal::Load: tree depth = %d", depth );
}
common->Printf( "done.\n" );
return true;
}
