int ntexture_driver::parse()
{
scan_begin();
yy::ntexture_parser parser(*this);
parser.set_debug_level(trace_parsing);
int res = parser.parse();
scan_end();
return res;
}
int sqlparser_driver::parse(const std::string &f){
file = f;
scan_begin();
yy::sqlparser parser(*this);
parser.set_debug_level(trace_parsing);
int res = parser.parse();
scan_end();
return res;
}
int KaleidoDriver::parse_file(const std::string &f) {
file = f;
scan_begin();
KaleidoParser parser(*this);
parser.set_debug_level(trace_parsing);
int res = parser.parse();
scan_end();
return res;
}
void ExprDriver::parse(const std::string &input)
{
_input = input;
scan_begin();
yy::ExprParser parser(*this);
parser.set_debug_level(_traceParsing);
parser.parse();
scan_end();
}
int Driver::parse(const std::string& filename_)
{
filename = filename_;
scan_begin();
yy::Parser parser(*this);
parser.set_debug_level(trace_parsing);
int res = parser.parse();
scan_end();
return res;
}
int KaleidoDriver::parse(const std::string &literal) {
file = "<LITERAL>";
parse_on_the_fly = true;
scan_begin();
KaleidoParser parser(*this);
parser.set_debug_level(trace_parsing);
int res = parser.parse();
scan_end();
return res;
}
int
ParseDriver::parse (const std::string &f)
{
file = f;
scan_begin ();
yy::SceneParser parser (*this);
parser.set_debug_level (garg_debug_trace_parsing);
int res = parser.parse ();
scan_end ();
return res;
}
int main(int argc, char **argv) {
struct scan_ctx *scan;
struct scan_chunk_data chunk_data[2];
struct analyze_ctx *analyze;
int fd, result;
analyze = analyze_open(argv[2], argv[1]);
if (!analyze) {
perror("analyze_init");
return EXIT_FAILURE;
}
scan = scan_init();
if (!scan) {
perror("scan_init");
return EXIT_FAILURE;
}
fd = open(argv[1], O_RDWR);
if (fd < 0) {
perror("open");
return EXIT_FAILURE;
}
scan_set_fd(scan, fd);
scan_set_aio(scan);
if (!scan_begin(scan))
return EXIT_FAILURE;
do {
result = scan_read_chunk(scan, chunk_data);
if (result & SCAN_CHUNK_FOUND)
store_chunk(analyze, chunk_data);
else {
fputs("Scan error\n", stderr);
return EXIT_FAILURE;
}
} while (!(result & SCAN_CHUNK_LAST));
analyze_close(analyze);
scan_free(scan);
return EXIT_SUCCESS;
}
void
RPG_Net_Protocol_Module_IRCSplitter::handleDataMessage(RPG_Net_Protocol_Message*& message_inout,
bool& passMessageDownstream_out)
{
RPG_TRACE(ACE_TEXT("RPG_Net_Protocol_Module_IRCSplitter::handleDataMessage"));
// init return value(s), default behavior is to pass all messages along...
// --> we don't want that !
passMessageDownstream_out = false;
// sanity check(s)
ACE_ASSERT(message_inout);
ACE_ASSERT(myIsInitialized);
// perhaps we already have part of this message ?
if (myCurrentBuffer)
myCurrentBuffer->cont(message_inout); // chain the buffer
myCurrentBuffer = message_inout;
// scan the bytestream for frame bounds "\r\n"
// do we know where to start ?
if (myCurrentMessage == NULL)
myCurrentMessage = myCurrentBuffer; // start scanning at offset 0...
// *NOTE*: the scanner checks sequences of >= 2 bytes (.*\r\n)
// --> make sure we have a minimum amount of data...
// --> more sanity check(s)
if (myCurrentMessage->total_length() < RPG_NET_PROTOCOL_IRC_FRAME_BOUNDARY_SIZE)
return; // don't have enough data, cannot proceed
if (myCurrentBuffer->length() < RPG_NET_PROTOCOL_IRC_FRAME_BOUNDARY_SIZE)
{
// *sigh*: OK, so this CAN actually happen...
// case1: if we have anything OTHER than '\n', there's nothing to do
// --> wait for more data
// case2: if we have an '\n' we have to check the trailing character
// of the PRECEDING buffer:
// - if it's an '\r' --> voilà, we've found a frame boundary
// - else --> wait for more data
if (((*myCurrentBuffer->rd_ptr()) == '\n') &&
(myCurrentMessage != myCurrentBuffer))
{
ACE_Message_Block* preceding_buffer = myCurrentMessage;
for (;
preceding_buffer->cont() != myCurrentBuffer;
preceding_buffer = preceding_buffer->cont());
if (*(preceding_buffer->rd_ptr() + (preceding_buffer->length() - 1)) == '\r')
{
// OK, we have all of it !
if (myCrunchMessages)
{
myCurrentMessage->crunch();
} // end IF
// --> push it downstream...
if (put_next(myCurrentMessage, NULL) == -1)
{
ACE_DEBUG((LM_ERROR,
ACE_TEXT("failed to ACE_Task::put_next(): \"%m\", continuing\n")));
// clean up
myCurrentMessage->release();
} // end IF
// bye bye...
myCurrentMessageLength = 0;
myCurrentMessage = NULL;
myCurrentBuffer = NULL;
return;
} // end IF
} // end IF
return; // don't have enough data, cannot proceed
} // end IF
// OK, init scanner...
// *WARNING*: cannot use yy_scan_buffer(), as flex modifies the data... :-(
// // *NOTE*: in order to accomodate flex, the buffer needs two trailing
// // '\0' characters...
// // --> make sure it has this capacity
// if (myCurrentBuffer->space() < RPG_NET_PROTOCOL_FLEX_BUFFER_BOUNDARY_SIZE)
// {
// // *sigh*: (try to) resize it then...
// if (myCurrentBuffer->size(myCurrentBuffer->size() + RPG_NET_PROTOCOL_FLEX_BUFFER_BOUNDARY_SIZE))
// {
// ACE_DEBUG((LM_ERROR,
// ACE_TEXT("failed to ACE_Message_Block::size(%u), aborting\n"),
// (myCurrentBuffer->size() + RPG_NET_PROTOCOL_FLEX_BUFFER_BOUNDARY_SIZE)));
//
// // what else can we do ?
// return;
// } // end IF
// myCurrentBufferIsResized = true;
//
// // *WARNING*: beyond this point, make sure we resize the buffer back
// // to its original length...
// // *NOTE*: this is safe, as realloc() just crops the trailing bytes again...
// } // end IF
// // for (int i = 0;
// // i < RPG_NET_PROTOCOL_FLEX_BUFFER_BOUNDARY_SIZE;
// // i++)
// // *(myCurrentBuffer->wr_ptr() + i) = YY_END_OF_BUFFER_CHAR;
// *(myCurrentBuffer->wr_ptr()) = '\0';
// *(myCurrentBuffer->wr_ptr() + 1) = '\0';
//
// if (!scan_begin(myCurrentBuffer->rd_ptr(),
// myCurrentBuffer->length() + RPG_NET_PROTOCOL_FLEX_BUFFER_BOUNDARY_SIZE))
if (!scan_begin(myCurrentBuffer->rd_ptr(),
myCurrentBuffer->length()))
{
ACE_DEBUG((LM_ERROR,
ACE_TEXT("failed to scan_begin(%@, %u), aborting\n"),
myCurrentBuffer->rd_ptr(),
myCurrentBuffer->length()));
// // clean up
// if (myCurrentBufferIsResized)
// {
// if (myCurrentBuffer->size(myCurrentBuffer->size() - RPG_NET_PROTOCOL_FLEX_BUFFER_BOUNDARY_SIZE))
// ACE_DEBUG((LM_ERROR,
// ACE_TEXT("failed to ACE_Message_Block::size(%u), continuing\n"),
// (myCurrentBuffer->size() - RPG_NET_PROTOCOL_FLEX_BUFFER_BOUNDARY_SIZE)));
// myCurrentBufferIsResized = false;
// } // end IF
// what else can we do ?
return;
} // end IF
// // debug info
// ACE_DEBUG((LM_DEBUG,
// ACE_TEXT("[%u]: scanning %u byte(s)\n\"%s\"\n"),
// myCurrentBuffer->getID(),
// myCurrentBuffer->length(),
// std::string(myCurrentBuffer->rd_ptr(), myCurrentBuffer->length()).c_str()));
// scan it !
myCurrentNumFrames = 0;
bool finished_scanning = false;
int scanned_bytes = 0;
int scanned_chunk = 0;
// while (myCurrentMessageLength = myScanner.yylex())
do
{
scanned_chunk = RPG_Net_Protocol_IRCBisect_lex(myScannerContext);
// scanned_chunk = IRCBisectlex(myScannerContext);
switch (scanned_chunk)
{
case 0:
{
// --> finished scanning this buffer
finished_scanning = true; // no (more) frame boundaries found
// remember how much data was scanned so far...
myCurrentMessageLength += scanned_bytes;
break;
}
case -1:
{
// found a frame border scanned_bytes bytes into the buffer
// *NOTE*: if scanned_bytes == 0, then it's the corner
// case where the current buffer starts with either:
// - a '\n'
// - a "\r\n"
// *NOTE*: in EITHER case, a new frame has been found...
if ((scanned_bytes == 0) &&
(*myCurrentBuffer->rd_ptr() == '\n'))
{
scanned_bytes = 1;
myCurrentMessageLength += RPG_NET_PROTOCOL_IRC_FRAME_BOUNDARY_SIZE;
} // end IF
else
{
scanned_bytes += RPG_NET_PROTOCOL_IRC_FRAME_BOUNDARY_SIZE;
myCurrentMessageLength += scanned_bytes;
} // end IF
// ACE_DEBUG((LM_DEBUG,
// ACE_TEXT("buffer (ID: %u, length: %u): frame boundary [#%u] @ offset %u\n\"%s\"\n"),
// myCurrentBuffer->getID(),
// myCurrentMessageLength,
// myCurrentNumFrames,
// (scanned_bytes + (myCurrentBuffer->rd_ptr() - myCurrentBuffer->base())),
// std::string(myCurrentBuffer->rd_ptr(), scanned_bytes).c_str()));
RPG_Net_Protocol_Message* message = myCurrentMessage;
if (myCurrentMessageLength < myCurrentMessage->total_length())
{
// more data to scan...
// *NOTE*: copy ctor shallow-copies the current data block
myCurrentMessage = dynamic_cast<RPG_Net_Protocol_Message*>(myCurrentBuffer->duplicate());
ACE_ASSERT(myCurrentMessage);
// adjust wr_ptr (point to one-past-the-end of the current message)
myCurrentBuffer->wr_ptr(myCurrentBuffer->rd_ptr() + scanned_bytes);
ACE_ASSERT(myCurrentMessageLength == message->total_length());
// adjust rd_ptr (point to the beginning of the next message)
myCurrentMessage->rd_ptr(scanned_bytes);
} // end IF
else
{
// NO more data to scan...
ACE_ASSERT(myCurrentMessageLength == myCurrentMessage->total_length());
// set new message head
myCurrentMessage = NULL;
} // end ELSE
if (myCrunchMessages)
{
message->crunch();
} // end IF
// ACE_DEBUG((LM_DEBUG,
// ACE_TEXT("processing message (ID: %u - %u byte(s))...\n"),
// message->getID(),
// message->total_length()));
// --> push it downstream...
if (put_next(message, NULL) == -1)
{
ACE_DEBUG((LM_ERROR,
ACE_TEXT("failed to ACE_Task::put_next(): \"%m\", continuing\n")));
// clean up
message->release();
} // end IF
// set new current buffer
myCurrentBuffer = myCurrentMessage;
// reset state
myCurrentMessageLength = 0;
scanned_bytes = 0;
// ...continue scanning !
break;
}
default:
{
// scanned one/some character(s)...
scanned_bytes += scanned_chunk;
break;
}
} // end SWITCH
} while (!finished_scanning);
// clean up
scan_end();
// // *NOTE*: that even if we've sent some frames downstream in the meantime,
// // we're still referencing the same buffer we resized earlier - it's always
// // the new "head" message...
// if (myCurrentBufferIsResized)
// {
// if (myCurrentBuffer->size(myCurrentBuffer->size() - RPG_NET_PROTOCOL_FLEX_BUFFER_BOUNDARY_SIZE))
// ACE_DEBUG((LM_ERROR,
// ACE_TEXT("failed to ACE_Message_Block::size(%u), continuing\n"),
// (myCurrentBuffer->size() - RPG_NET_PROTOCOL_FLEX_BUFFER_BOUNDARY_SIZE)));
// myCurrentBufferIsResized = false;
// } // end IF
// ACE_DEBUG((LM_DEBUG,
// ACE_TEXT("found %u frame bound(s)...\n"),
// myCurrentNumFrames));
}