ANTLR_BEGIN_NAMESPACE()
template<class ImplTraits, class SuperType>
ANTLR_INLINE IntStream<ImplTraits, SuperType>::IntStream()
{
m_lastMarker = 0;
m_upper_case = false;
}
template<class ImplTraits, class SuperType>
ANTLR_INLINE typename IntStream<ImplTraits, SuperType>::StringType IntStream<ImplTraits, SuperType>::getSourceName()
{
return m_streamName;
}
template<class ImplTraits, class SuperType>
ANTLR_INLINE typename IntStream<ImplTraits, SuperType>::StringType& IntStream<ImplTraits, SuperType>::get_streamName()
{
return m_streamName;
}
template<class ImplTraits, class SuperType>
ANTLR_INLINE const typename IntStream<ImplTraits, SuperType>::StringType& IntStream<ImplTraits, SuperType>::get_streamName() const
{
return m_streamName;
}
template<class ImplTraits, class SuperType>
ANTLR_INLINE ANTLR_MARKER IntStream<ImplTraits, SuperType>::get_lastMarker() const
{
return m_lastMarker;
}
template<class ImplTraits, class SuperType>
ANTLR_INLINE void IntStream<ImplTraits, SuperType>::setUcaseLA(bool flag)
{
m_upper_case = flag;
}
template<class ImplTraits, class SuperType>
ANTLR_INLINE SuperType* IntStream<ImplTraits, SuperType>::get_super()
{
return static_cast<SuperType*>(this);
}
template<class ImplTraits, class SuperType>
void IntStream<ImplTraits, SuperType>::consume()
{
SuperType* input = this->get_super();
const ANTLR_UINT8* nextChar = input->get_nextChar();
const ANTLR_UINT8* data = input->get_data();
ANTLR_UINT32 sizeBuf = input->get_sizeBuf();
if ( nextChar < ( data + sizeBuf ) )
{
/* Indicate one more character in this line
*/
input->inc_charPositionInLine();
if ((ANTLR_UCHAR)(*(nextChar)) == input->get_newlineChar() )
{
/* Reset for start of a new line of input
*/
input->inc_line();
input->set_charPositionInLine(0);
input->set_currentLine(nextChar + 1);
}
/* Increment to next character position
*/
input->set_nextChar( nextChar + 1 );
}
}
template<class ImplTraits, class SuperType>
ANTLR_UINT32 IntStream<ImplTraits, SuperType>::_LA( ANTLR_INT32 la )
{
SuperType* input = this->get_super();
const ANTLR_UINT8* nextChar = input->get_nextChar();
const ANTLR_UINT8* data = input->get_data();
ANTLR_UINT32 sizeBuf = input->get_sizeBuf();
if (( nextChar + la - 1) >= (data + sizeBuf))
{
return ANTLR_CHARSTREAM_EOF;
}
else
{
if( !m_upper_case )
return (ANTLR_UCHAR)(*(nextChar + la - 1));
else
return (ANTLR_UCHAR)toupper(*(nextChar + la - 1));
}
}
template<class ImplTraits, class SuperType>
ANTLR_MARKER IntStream<ImplTraits, SuperType>::mark()
{
LexState<ImplTraits>* state;
SuperType* input = this->get_super();
/* New mark point
*/
input->inc_markDepth();
/* See if we are revisiting a mark as we can just reuse the vector
* entry if we are, otherwise, we need a new one
*/
if (input->get_markDepth() > input->get_markers().size() )
{
input->get_markers().push_back( LexState<ImplTraits>() );
LexState<ImplTraits>& state_r = input->get_markers().back();
state = &state_r;
}
else
{
LexState<ImplTraits>& state_r = input->get_markers().at( input->get_markDepth() - 1 );
state = &state_r;
/* Assume no errors for speed, it will just blow up if the table failed
* for some reasons, hence lots of unit tests on the tables ;-)
*/
}
/* We have created or retrieved the state, so update it with the current
* elements of the lexer state.
*/
state->set_charPositionInLine( input->get_charPositionInLine() );
state->set_currentLine( input->get_currentLine() );
state->set_line( input->get_line() );
state->set_nextChar( input->get_nextChar() );
m_lastMarker = input->get_markDepth();
/* And that's it
*/
return input->get_markDepth();
}
template<class ImplTraits, class SuperType>
ANTLR_MARKER IntStream<ImplTraits, SuperType>::index()
{
SuperType* input = this->get_super();
return input->index_impl();
}
template<class ImplTraits, class SuperType>
void IntStream<ImplTraits, SuperType>::rewind(ANTLR_MARKER mark)
{
SuperType* input = this->get_super();
/* Perform any clean up of the marks
*/
this->release(mark);
/* Find the supplied mark state
*/
ANTLR_UINT32 idx = static_cast<ANTLR_UINT32>( mark-1 );
typename ImplTraits::LexStateType& state = input->get_markers().at( idx );
/* Seek input pointer to the requested point (note we supply the void *pointer
* to whatever is implementing the int stream to seek).
*/
this->seek( (ANTLR_MARKER)state.get_nextChar() );
/* Reset to the reset of the information in the mark
*/
input->set_charPositionInLine( state.get_charPositionInLine() );
input->set_currentLine( state.get_currentLine() );
input->set_line( state.get_line() );
input->set_nextChar( state.get_nextChar() );
/* And we are done
*/
}
template<class ImplTraits, class SuperType>
void IntStream<ImplTraits, SuperType>::rewindLast()
{
this->rewind(m_lastMarker);
}
template<class ImplTraits, class SuperType>
void IntStream<ImplTraits, SuperType>::release(ANTLR_MARKER mark)
{
SuperType* input = this->get_super();
/* We don't do much here in fact as we never free any higher marks in
* the hashtable as we just resuse any memory allocated for them.
*/
input->set_markDepth( (ANTLR_UINT32)(mark - 1) );
}
template<class ImplTraits, class SuperType>
void IntStream<ImplTraits, SuperType>::setupIntStream(bool, bool)
{
}
template<class ImplTraits, class SuperType>
void IntStream<ImplTraits, SuperType>::seek(ANTLR_MARKER seekPoint)
{
ANTLR_INT32 count;
SuperType* input = this->get_super();
ANTLR_MARKER nextChar = (ANTLR_MARKER) input->get_nextChar();
/* If the requested seek point is less than the current
* input point, then we assume that we are resetting from a mark
* and do not need to scan, but can just set to there.
*/
if (seekPoint <= nextChar)
{
input->set_nextChar((ANTLR_UINT8*) seekPoint);
}
else
{
count = (ANTLR_UINT32)(seekPoint - nextChar);
while (count--)
{
this->consume();
}
}
}
template<class ImplTraits, class SuperType>
IntStream<ImplTraits, SuperType>::~IntStream()
{
}
template<class ImplTraits, class SuperType>
ANTLR_UINT32 EBCDIC_IntStream<ImplTraits, SuperType>::_LA( ANTLR_INT32 la)
{
// EBCDIC to ASCII conversion table
//
// This for EBCDIC EDF04 translated to ISO-8859.1 which is the usually accepted POSIX
// translation and the character tables are published all over the interweb.
//
const ANTLR_UCHAR e2a[256] =
{
0x00, 0x01, 0x02, 0x03, 0x85, 0x09, 0x86, 0x7f,
0x87, 0x8d, 0x8e, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x8f, 0x0a, 0x08, 0x97,
0x18, 0x19, 0x9c, 0x9d, 0x1c, 0x1d, 0x1e, 0x1f,
0x80, 0x81, 0x82, 0x83, 0x84, 0x92, 0x17, 0x1b,
0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x05, 0x06, 0x07,
0x90, 0x91, 0x16, 0x93, 0x94, 0x95, 0x96, 0x04,
0x98, 0x99, 0x9a, 0x9b, 0x14, 0x15, 0x9e, 0x1a,
0x20, 0xa0, 0xe2, 0xe4, 0xe0, 0xe1, 0xe3, 0xe5,
0xe7, 0xf1, 0x60, 0x2e, 0x3c, 0x28, 0x2b, 0x7c,
0x26, 0xe9, 0xea, 0xeb, 0xe8, 0xed, 0xee, 0xef,
0xec, 0xdf, 0x21, 0x24, 0x2a, 0x29, 0x3b, 0x9f,
0x2d, 0x2f, 0xc2, 0xc4, 0xc0, 0xc1, 0xc3, 0xc5,
0xc7, 0xd1, 0x5e, 0x2c, 0x25, 0x5f, 0x3e, 0x3f,
0xf8, 0xc9, 0xca, 0xcb, 0xc8, 0xcd, 0xce, 0xcf,
0xcc, 0xa8, 0x3a, 0x23, 0x40, 0x27, 0x3d, 0x22,
0xd8, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
0x68, 0x69, 0xab, 0xbb, 0xf0, 0xfd, 0xfe, 0xb1,
0xb0, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70,
0x71, 0x72, 0xaa, 0xba, 0xe6, 0xb8, 0xc6, 0xa4,
0xb5, 0xaf, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
0x79, 0x7a, 0xa1, 0xbf, 0xd0, 0xdd, 0xde, 0xae,
0xa2, 0xa3, 0xa5, 0xb7, 0xa9, 0xa7, 0xb6, 0xbc,
0xbd, 0xbe, 0xac, 0x5b, 0x5c, 0x5d, 0xb4, 0xd7,
0xf9, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
0x48, 0x49, 0xad, 0xf4, 0xf6, 0xf2, 0xf3, 0xf5,
0xa6, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50,
0x51, 0x52, 0xb9, 0xfb, 0xfc, 0xdb, 0xfa, 0xff,
0xd9, 0xf7, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
0x59, 0x5a, 0xb2, 0xd4, 0xd6, 0xd2, 0xd3, 0xd5,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
0x38, 0x39, 0xb3, 0x7b, 0xdc, 0x7d, 0xda, 0x7e
};
SuperType* input = this->get_super();
if (( input->get_nextChar() + la - 1) >= ( input->get_data() + input->get_sizeBuf() ))
{
return ANTLR_CHARSTREAM_EOF;
}
else
{
// Translate the required character via the constant conversion table
//
return e2a[(*(input->get_nextChar() + la - 1))];
}
}
template<class ImplTraits, class SuperType>
void EBCDIC_IntStream<ImplTraits, SuperType>::setupIntStream()
{
SuperType* super = this->get_super();
super->set_charByteSize(1);
}
template<class ImplTraits, class SuperType>
ANTLR_UINT32 UTF16_IntStream<ImplTraits, SuperType>::_LA( ANTLR_INT32 i)
{
return this->_LA(i, ClassForwarder< typename ImplTraits::Endianness >() );
}
template<class ImplTraits, class SuperType>
void UTF16_IntStream<ImplTraits, SuperType>::consume()
{
this->consume( ClassForwarder< typename ImplTraits::Endianness >() );
}
template<class ImplTraits, class SuperType>
ANTLR_MARKER UTF16_IntStream<ImplTraits, SuperType>::index()
{
SuperType* input = this->get_super();
return (ANTLR_MARKER)(input->get_nextChar());
}
template<class ImplTraits, class SuperType>
void UTF16_IntStream<ImplTraits, SuperType>::seek(ANTLR_MARKER seekPoint)
{
SuperType* input = this->get_super();
// If the requested seek point is less than the current
// input point, then we assume that we are resetting from a mark
// and do not need to scan, but can just set to there as rewind will
// reset line numbers and so on.
//
if (seekPoint <= (ANTLR_MARKER)(input->get_nextChar()))
{
input->set_nextChar( seekPoint );
}
else
{
// Call consume until we reach the asked for seek point or EOF
//
while( (this->_LA(1) != ANTLR_CHARSTREAM_EOF) && (seekPoint < (ANTLR_MARKER)input->get_nextChar() ) )
{
this->consume();
}
}
}
template<class ImplTraits, class SuperType>
void IntStream<ImplTraits, SuperType>::findout_endian_spec(bool machineBigEndian, bool inputBigEndian)
{
// We must install different UTF16 routines according to whether the input
// is the same endianess as the machine we are executing upon or not. If it is not
// then we must install methods that can convert the endianess on the fly as they go
//
if(machineBigEndian == true)
{
// Machine is Big Endian, if the input is also then install the
// methods that do not access input by bytes and reverse them.
// Otherwise install endian aware methods.
//
if (inputBigEndian == true)
{
// Input is machine compatible
//
m_endian_spec = 1;
}
else
{
// Need to use methods that know that the input is little endian
//
m_endian_spec = 2;
}
}
else
{
// Machine is Little Endian, if the input is also then install the
// methods that do not access input by bytes and reverse them.
// Otherwise install endian aware methods.
//
if (inputBigEndian == false)
{
// Input is machine compatible
//
m_endian_spec = 1;
}
else
{
// Need to use methods that know that the input is Big Endian
//
m_endian_spec = 3;
}
}
}
template<class ImplTraits, class SuperType>
void UTF16_IntStream<ImplTraits, SuperType>::setupIntStream(bool machineBigEndian, bool inputBigEndian)
{
SuperType* super = this->get_super();
super->set_charByteSize(2);
this->findout_endian_spec( machineBigEndian, inputBigEndian );
}
template<class ImplTraits, class SuperType>
ANTLR_UINT32 IntStream<ImplTraits, SuperType>::_LA( ANTLR_INT32 i, ClassForwarder<RESOLVE_ENDIAN_AT_RUNTIME> )
{
assert( (m_endian_spec >= 1) && (m_endian_spec <= 3));
switch(m_endian_spec)
{
case 1:
return this->_LA(i, ClassForwarder<BYTE_AGNOSTIC>() );
break;
case 2:
return this->_LA(i, ClassForwarder<ANTLR_LITTLE_ENDIAN>() );
break;
case 3:
return this->_LA(i, ClassForwarder<ANTLR_BIG_ENDIAN>() );
break;
default:
break;
}
return 0;
}
template<class ImplTraits, class SuperType>
void IntStream<ImplTraits, SuperType>::consume( ClassForwarder<RESOLVE_ENDIAN_AT_RUNTIME> )
{
assert( (m_endian_spec >= 1) && (m_endian_spec <= 3));
switch(m_endian_spec)
{
case 1:
this->consume( ClassForwarder<BYTE_AGNOSTIC>() );
break;
case 2:
this->consume( ClassForwarder<ANTLR_LITTLE_ENDIAN>() );
break;
case 3:
this->consume( ClassForwarder<ANTLR_BIG_ENDIAN>() );
break;
default:
break;
}
}
template<class ImplTraits, class SuperType>
ANTLR_UINT32 UTF16_IntStream<ImplTraits, SuperType>::_LA( ANTLR_INT32 la, ClassForwarder<BYTE_AGNOSTIC> )
{
SuperType* input;
UTF32 ch;
UTF32 ch2;
UTF16* nextChar;
// Find the input interface and where we are currently pointing to
// in the input stream
//
input = this->get_super;
nextChar = input->get_nextChar();
// If a positive offset then advance forward, else retreat
//
if (la >= 0)
{
while (--la > 0 && (ANTLR_UINT8*)nextChar < ((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf() )
{
// Advance our copy of the input pointer
//
// Next char in natural machine byte order
//
ch = *nextChar++;
// If we have a surrogate pair then we need to consume
// a following valid LO surrogate.
//
if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END)
{
// If the 16 bits following the high surrogate are in the source buffer...
//
if ((ANTLR_UINT8*)(nextChar) < (((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf() ))
{
// Next character is in natural machine byte order
//
ch2 = *nextChar;
// If it's a valid low surrogate, consume it
//
if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END)
{
// We consumed one 16 bit character
//
nextChar++;
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it.
//
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it because the buffer ended
//
}
// Note that we did not check for an invalid low surrogate here, or that fact that the
// lo surrogate was missing. We just picked out one 16 bit character unless the character
// was a valid hi surrogate, in whcih case we consumed two 16 bit characters.
//
}
}
else
{
// We need to go backwards from our input point
//
while (la++ < 0 && (ANTLR_UINT8*)nextChar > (ANTLR_UINT8*)input->get_data() )
{
// Get the previous 16 bit character
//
ch = *--nextChar;
// If we found a low surrogate then go back one more character if
// the hi surrogate is there
//
if (ch >= UNI_SUR_LOW_START && ch <= UNI_SUR_LOW_END)
{
ch2 = *(nextChar-1);
if (ch2 >= UNI_SUR_HIGH_START && ch2 <= UNI_SUR_HIGH_END)
{
// Yes, there is a high surrogate to match it so decrement one more and point to that
//
nextChar--;
}
}
}
}
// Our local copy of nextChar is now pointing to either the correct character or end of file
//
// Input buffer size is always in bytes
//
if ( (ANTLR_UINT8*)nextChar >= (((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf() ))
{
return ANTLR_CHARSTREAM_EOF;
}
else
{
// Pick up the next 16 character (native machine byte order)
//
ch = *nextChar++;
// If we have a surrogate pair then we need to consume
// a following valid LO surrogate.
//
if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END)
{
// If the 16 bits following the high surrogate are in the source buffer...
//
if ((ANTLR_UINT8*)(nextChar) < (((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf()))
{
// Next character is in natural machine byte order
//
ch2 = *nextChar;
// If it's a valid low surrogate, consume it
//
if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END)
{
// Construct the UTF32 code point
//
ch = ((ch - UNI_SUR_HIGH_START) << halfShift)
+ (ch2 - UNI_SUR_LOW_START) + halfBase;
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it.
//
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it because the buffer ended
//
}
}
return ch;
}
template<class ImplTraits, class SuperType>
ANTLR_UINT32 UTF16_IntStream<ImplTraits, SuperType>::_LA( ANTLR_INT32 la, ClassForwarder<ANTLR_LITTLE_ENDIAN> )
{
SuperType* input;
UTF32 ch;
UTF32 ch2;
ANTLR_UCHAR* nextChar;
// Find the input interface and where we are currently pointing to
// in the input stream
//
input = this->get_super();
nextChar = input->get_nextChar();
// If a positive offset then advance forward, else retreat
//
if (la >= 0)
{
while (--la > 0 && (ANTLR_UINT8*)nextChar < ((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf() )
{
// Advance our copy of the input pointer
//
// Next char in Little Endian byte order
//
ch = (*nextChar) + (*(nextChar+1) << 8);
nextChar += 2;
// If we have a surrogate pair then we need to consume
// a following valid LO surrogate.
//
if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END)
{
// If the 16 bits following the high surrogate are in the source buffer...
//
if ((ANTLR_UINT8*)(nextChar) < (((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf() ))
{
// Next character is in little endian byte order
//
ch2 = (*nextChar) + (*(nextChar+1) << 8);
// If it's a valid low surrogate, consume it
//
if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END)
{
// We consumed one 16 bit character
//
nextChar += 2;
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it.
//
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it because the buffer ended
//
}
// Note that we did not check for an invalid low surrogate here, or that fact that the
// lo surrogate was missing. We just picked out one 16 bit character unless the character
// was a valid hi surrogate, in whcih case we consumed two 16 bit characters.
//
}
}
else
{
// We need to go backwards from our input point
//
while (la++ < 0 && (ANTLR_UINT8*)nextChar > (ANTLR_UINT8*)input->get_data() )
{
// Get the previous 16 bit character
//
ch = (*nextChar - 2) + ((*nextChar -1) << 8);
nextChar -= 2;
// If we found a low surrogate then go back one more character if
// the hi surrogate is there
//
if (ch >= UNI_SUR_LOW_START && ch <= UNI_SUR_LOW_END)
{
ch2 = (*nextChar - 2) + ((*nextChar -1) << 8);
if (ch2 >= UNI_SUR_HIGH_START && ch2 <= UNI_SUR_HIGH_END)
{
// Yes, there is a high surrogate to match it so decrement one more and point to that
//
nextChar -=2;
}
}
}
}
// Our local copy of nextChar is now pointing to either the correct character or end of file
//
// Input buffer size is always in bytes
//
if ( (ANTLR_UINT8*)nextChar >= (((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf()))
{
return ANTLR_CHARSTREAM_EOF;
}
else
{
// Pick up the next 16 character (little endian byte order)
//
ch = (*nextChar) + (*(nextChar+1) << 8);
nextChar += 2;
// If we have a surrogate pair then we need to consume
// a following valid LO surrogate.
//
if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END)
{
// If the 16 bits following the high surrogate are in the source buffer...
//
if ((ANTLR_UINT8*)(nextChar) < (((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf()))
{
// Next character is in little endian byte order
//
ch2 = (*nextChar) + (*(nextChar+1) << 8);
// If it's a valid low surrogate, consume it
//
if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END)
{
// Construct the UTF32 code point
//
ch = ((ch - UNI_SUR_HIGH_START) << halfShift)
+ (ch2 - UNI_SUR_LOW_START) + halfBase;
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it.
//
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it because the buffer ended
//
}
}
return ch;
}
template<class ImplTraits, class SuperType>
ANTLR_UINT32 UTF16_IntStream<ImplTraits, SuperType>::_LA( ANTLR_INT32 la, ClassForwarder<ANTLR_BIG_ENDIAN> )
{
SuperType* input;
UTF32 ch;
UTF32 ch2;
ANTLR_UCHAR* nextChar;
// Find the input interface and where we are currently pointing to
// in the input stream
//
input = this->get_super();
nextChar = input->get_nextChar();
// If a positive offset then advance forward, else retreat
//
if (la >= 0)
{
while (--la > 0 && (ANTLR_UINT8*)nextChar < ((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf() )
{
// Advance our copy of the input pointer
//
// Next char in Big Endian byte order
//
ch = ((*nextChar) << 8) + *(nextChar+1);
nextChar += 2;
// If we have a surrogate pair then we need to consume
// a following valid LO surrogate.
//
if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END)
{
// If the 16 bits following the high surrogate are in the source buffer...
//
if ((ANTLR_UINT8*)(nextChar) < (((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf()))
{
// Next character is in big endian byte order
//
ch2 = ((*nextChar) << 8) + *(nextChar+1);
// If it's a valid low surrogate, consume it
//
if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END)
{
// We consumed one 16 bit character
//
nextChar += 2;
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it.
//
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it because the buffer ended
//
}
// Note that we did not check for an invalid low surrogate here, or that fact that the
// lo surrogate was missing. We just picked out one 16 bit character unless the character
// was a valid hi surrogate, in whcih case we consumed two 16 bit characters.
//
}
}
else
{
// We need to go backwards from our input point
//
while (la++ < 0 && (ANTLR_UINT8*)nextChar > (ANTLR_UINT8*)input->get_data() )
{
// Get the previous 16 bit character
//
ch = ((*nextChar - 2) << 8) + (*nextChar -1);
nextChar -= 2;
// If we found a low surrogate then go back one more character if
// the hi surrogate is there
//
if (ch >= UNI_SUR_LOW_START && ch <= UNI_SUR_LOW_END)
{
ch2 = ((*nextChar - 2) << 8) + (*nextChar -1);
if (ch2 >= UNI_SUR_HIGH_START && ch2 <= UNI_SUR_HIGH_END)
{
// Yes, there is a high surrogate to match it so decrement one more and point to that
//
nextChar -=2;
}
}
}
}
// Our local copy of nextChar is now pointing to either the correct character or end of file
//
// Input buffer size is always in bytes
//
if ( (ANTLR_UINT8*)nextChar >= (((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf()))
{
return ANTLR_CHARSTREAM_EOF;
}
else
{
// Pick up the next 16 character (big endian byte order)
//
ch = ((*nextChar) << 8) + *(nextChar+1);
nextChar += 2;
// If we have a surrogate pair then we need to consume
// a following valid LO surrogate.
//
if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END)
{
// If the 16 bits following the high surrogate are in the source buffer...
//
if ((ANTLR_UINT8*)(nextChar) < (((ANTLR_UINT8*)input->get_data()) + input->get_sizeBuf()))
{
// Next character is in big endian byte order
//
ch2 = ((*nextChar) << 8) + *(nextChar+1);
// If it's a valid low surrogate, consume it
//
if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END)
{
// Construct the UTF32 code point
//
ch = ((ch - UNI_SUR_HIGH_START) << halfShift)
+ (ch2 - UNI_SUR_LOW_START) + halfBase;
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it.
//
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it because the buffer ended
//
}
}
return ch;
}
template<class ImplTraits, class SuperType>
void UTF16_IntStream<ImplTraits, SuperType>::consume( ClassForwarder<BYTE_AGNOSTIC> )
{
SuperType* input;
UTF32 ch;
UTF32 ch2;
input = this->get_super();
// Buffer size is always in bytes
//
if(input->get_nextChar() < (input->get_data() + input->get_sizeBuf()/2) )
{
// Indicate one more character in this line
//
input->inc_charPositionInLine();
if ((ANTLR_UCHAR)(*(input->get_nextChar())) == input->get_newlineChar())
{
// Reset for start of a new line of input
//
input->inc_line();
input->set_charPositionInLine(0);
input->set_currentLine( input->get_nextChar() + 1 );
}
// Increment to next character position, accounting for any surrogates
//
// Next char in natural machine byte order
//
ch = *(input->get_nextChar());
// We consumed one 16 bit character
//
input->set_nextChar( input->get_nextChar() + 1 );
// If we have a surrogate pair then we need to consume
// a following valid LO surrogate.
//
if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END) {
// If the 16 bits following the high surrogate are in the source buffer...
//
if(input->get_nextChar() < (input->get_data() + input->get_sizeBuf()/2) )
{
// Next character is in natural machine byte order
//
ch2 = *(input->get_nextChar());
// If it's a valid low surrogate, consume it
//
if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END)
{
// We consumed one 16 bit character
//
input->set_nextChar( input->get_nextChar() + 1 );
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it.
//
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it because the buffer ended
//
}
// Note that we did not check for an invalid low surrogate here, or that fact that the
// lo surrogate was missing. We just picked out one 16 bit character unless the character
// was a valid hi surrogate, in whcih case we consumed two 16 bit characters.
//
}
}
template<class ImplTraits, class SuperType>
void UTF16_IntStream<ImplTraits, SuperType>::consume( ClassForwarder<ANTLR_LITTLE_ENDIAN> )
{
SuperType* input;
UTF32 ch;
UTF32 ch2;
input = this->get_super();
// Buffer size is always in bytes
//
if(input->get_nextChar() < (input->get_data() + input->get_sizeBuf()/2) )
{
// Indicate one more character in this line
//
input->inc_charPositionInLine();
if ((ANTLR_UCHAR)(*(input->get_nextChar())) == input->get_newlineChar())
{
// Reset for start of a new line of input
//
input->inc_line();
input->set_charPositionInLine(0);
input->set_currentLine(input->get_nextChar() + 1);
}
// Increment to next character position, accounting for any surrogates
//
// Next char in litle endian form
//
ch = *((ANTLR_UINT8*)input->get_nextChar()) + (*((ANTLR_UINT8*)input->get_nextChar() + 1) <<8);
// We consumed one 16 bit character
//
input->set_nextChar( input->get_nextChar() + 1);
// If we have a surrogate pair then we need to consume
// a following valid LO surrogate.
//
if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END)
{
// If the 16 bits following the high surrogate are in the source buffer...
//
if(input->get_nextChar() < (input->get_data() + input->get_sizeBuf()/2) )
{
ch2 = *((ANTLR_UINT8*)input->get_nextChar()) + (*((ANTLR_UINT8*)input->get_nextChar() + 1) <<8);
// If it's a valid low surrogate, consume it
//
if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END)
{
// We consumed one 16 bit character
//
input->set_nextChar( input->get_nextChar() + 1);
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it.
//
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it because the buffer ended
//
}
// Note that we did not check for an invalid low surrogate here, or that fact that the
// lo surrogate was missing. We just picked out one 16 bit character unless the character
// was a valid hi surrogate, in whcih case we consumed two 16 bit characters.
//
}
}
template<class ImplTraits, class SuperType>
void UTF16_IntStream<ImplTraits, SuperType>::consume( ClassForwarder<ANTLR_BIG_ENDIAN> )
{
SuperType* input;
UTF32 ch;
UTF32 ch2;
input = this->get_super();
// Buffer size is always in bytes
//
if(input->get_nextChar() < (input->get_data() + input->get_sizeBuf()/2) )
{
// Indicate one more character in this line
//
input->inc_charPositionInLine();
if ((ANTLR_UCHAR)(*(input->get_nextChar())) == input->get_newlineChar())
{
// Reset for start of a new line of input
//
input->inc_line();
input->set_charPositionInLine(0);
input->set_currentLine(input->get_nextChar() + 1);
}
// Increment to next character position, accounting for any surrogates
//
// Next char in big endian form
//
ch = *((ANTLR_UINT8*)input->get_nextChar() + 1) + (*((ANTLR_UINT8*)input->get_nextChar() ) <<8);
// We consumed one 16 bit character
//
input->set_nextChar( input->get_nextChar() + 1);
// If we have a surrogate pair then we need to consume
// a following valid LO surrogate.
//
if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END)
{
// If the 16 bits following the high surrogate are in the source buffer...
//
if(input->get_nextChar() < (input->get_data() + input->get_sizeBuf()/2) )
{
// Big endian
//
ch2 = *((ANTLR_UINT8*)input->get_nextChar() + 1) + (*((ANTLR_UINT8*)input->get_nextChar() ) <<8);
// If it's a valid low surrogate, consume it
//
if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END)
{
// We consumed one 16 bit character
//
input->set_nextChar( input->get_nextChar() + 1);
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it.
//
}
// Note that we ignore a valid hi surrogate that has no lo surrogate to go with
// it because the buffer ended
//
}
// Note that we did not check for an invalid low surrogate here, or that fact that the
// lo surrogate was missing. We just picked out one 16 bit character unless the character
// was a valid hi surrogate, in whcih case we consumed two 16 bit characters.
//
}
}
template<class ImplTraits, class SuperType>
ANTLR_UINT32 UTF32_IntStream<ImplTraits, SuperType>::_LA( ANTLR_INT32 i)
{
return this->_LA( i, ClassForwarder<typename ImplTraits::Endianness>() );
}
template<class ImplTraits, class SuperType>
ANTLR_MARKER UTF32_IntStream<ImplTraits, SuperType>::index()
{
SuperType* input = this->get_super();
return (ANTLR_MARKER)(input->get_nextChar());
}
template<class ImplTraits, class SuperType>
void UTF32_IntStream<ImplTraits, SuperType>::seek(ANTLR_MARKER seekPoint)
{
SuperType* input;
input = this->get_super();
// If the requested seek point is less than the current
// input point, then we assume that we are resetting from a mark
// and do not need to scan, but can just set to there as rewind will
// reset line numbers and so on.
//
if (seekPoint <= (ANTLR_MARKER)(input->get_nextChar()))
{
input->set_nextChar( static_cast<typename ImplTraits::DataType*>(seekPoint) );
}
else
{
// Call consume until we reach the asked for seek point or EOF
//
while( (this->_LA(1) != ANTLR_CHARSTREAM_EOF) && (seekPoint < (ANTLR_MARKER)input->get_nextChar()) )
{
this->consume();
}
}
}
template<class ImplTraits, class SuperType>
void UTF32_IntStream<ImplTraits, SuperType>::setupIntStream(bool machineBigEndian, bool inputBigEndian)
{
SuperType* super = this->get_super();
super->set_charByteSize(4);
this->findout_endian_spec(machineBigEndian, inputBigEndian);
}
template<class ImplTraits, class SuperType>
ANTLR_UINT32 UTF32_IntStream<ImplTraits, SuperType>::_LA( ANTLR_INT32 la, ClassForwarder<BYTE_AGNOSTIC> )
{
SuperType* input = this->get_super();
if (( input->get_nextChar() + la - 1) >= (input->get_data() + input->get_sizeBuf()/4 ))
{
return ANTLR_CHARSTREAM_EOF;
}
else
{
return (ANTLR_UCHAR)(*(input->get_nextChar() + la - 1));
}
}
template<class ImplTraits, class SuperType>
ANTLR_UINT32 UTF32_IntStream<ImplTraits, SuperType>::_LA( ANTLR_INT32 la, ClassForwarder<ANTLR_LITTLE_ENDIAN> )
{
SuperType* input = this->get_super();
if (( input->get_nextChar() + la - 1) >= (input->get_data() + input->get_sizeBuf()/4 ))
{
return ANTLR_CHARSTREAM_EOF;
}
else
{
ANTLR_UCHAR c;
c = (ANTLR_UCHAR)(*(input->get_nextChar() + la - 1));
// Swap Endianess to Big Endian
//
return (c>>24) | ((c<<8) & 0x00FF0000) | ((c>>8) & 0x0000FF00) | (c<<24);
}
}
template<class ImplTraits, class SuperType>
ANTLR_UINT32 UTF32_IntStream<ImplTraits, SuperType>::_LA( ANTLR_INT32 la, ClassForwarder<ANTLR_BIG_ENDIAN> )
{
SuperType* input = this->get_super();
if (( input->get_nextChar() + la - 1) >= (input->get_data() + input->get_sizeBuf()/4 ))
{
return ANTLR_CHARSTREAM_EOF;
}
else
{
ANTLR_UCHAR c;
c = (ANTLR_UCHAR)(*(input->get_nextChar() + la - 1));
// Swap Endianess to Little Endian
//
return (c>>24) | ((c<<8) & 0x00FF0000) | ((c>>8) & 0x0000FF00) | (c<<24);
}
}
template<class ImplTraits, class SuperType>
void UTF32_IntStream<ImplTraits, SuperType>::consume()
{
SuperType* input = this->get_super();
// SizeBuf is always in bytes
//
if ( input->get_nextChar() < (input->get_data() + input->get_sizeBuf()/4 ))
{
/* Indicate one more character in this line
*/
input->inc_charPositionInLine();
if ((ANTLR_UCHAR)(*(input->get_nextChar())) == input->get_newlineChar())
{
/* Reset for start of a new line of input
*/
input->inc_line();
input->set_charPositionInLine(0);
input->set_currentLine( input->get_nextChar() + 1 );
}
/* Increment to next character position
*/
input->set_nextChar( input->get_nextChar() + 1 );
}
}
template<class ImplTraits, class SuperType>
void UTF8_IntStream<ImplTraits, SuperType>::setupIntStream(bool, bool)
{
SuperType* super = this->get_super();
super->set_charByteSize(0);
}
// ------------------------------------------------------
// Following is from Unicode.org (see antlr3convertutf.c)
//
/// Index into the table below with the first byte of a UTF-8 sequence to
/// get the number of trailing bytes that are supposed to follow it.
/// Note that *legal* UTF-8 values can't have 4 or 5-bytes. The table is
/// left as-is for anyone who may want to do such conversion, which was
/// allowed in earlier algorithms.
///
template<class ImplTraits, class SuperType>
const ANTLR_UINT32* UTF8_IntStream<ImplTraits, SuperType>::TrailingBytesForUTF8()
{
static const ANTLR_UINT32 trailingBytesForUTF8[256] = {
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5
};
return trailingBytesForUTF8;
}
/// Magic values subtracted from a buffer value during UTF8 conversion.
/// This table contains as many values as there might be trailing bytes
/// in a UTF-8 sequence.
///
template<class ImplTraits, class SuperType>
const UTF32* UTF8_IntStream<ImplTraits, SuperType>::OffsetsFromUTF8()
{
static const UTF32 offsetsFromUTF8[6] =
{ 0x00000000UL, 0x00003080UL, 0x000E2080UL,
0x03C82080UL, 0xFA082080UL, 0x82082080UL
};
return offsetsFromUTF8;
}
// End of Unicode.org tables
// -------------------------
/** \brief Consume the next character in a UTF8 input stream
*
* \param input Input stream context pointer
*/
template<class ImplTraits, class SuperType>
void UTF8_IntStream<ImplTraits, SuperType>::consume()
{
SuperType* input = this->get_super();
const ANTLR_UINT32* trailingBytesForUTF8 = UTF8_IntStream::TrailingBytesForUTF8();
const UTF32* offsetsFromUTF8 = UTF8_IntStream::OffsetsFromUTF8();
ANTLR_UINT32 extraBytesToRead;
ANTLR_UCHAR ch;
ANTLR_UINT8* nextChar;
nextChar = input->get_nextChar();
if (nextChar < (input->get_data() + input->get_sizeBuf()))
{
// Indicate one more character in this line
//
input->inc_charPositionInLine();
// Are there more bytes needed to make up the whole thing?
//
extraBytesToRead = trailingBytesForUTF8[*nextChar];
if ((nextChar + extraBytesToRead) >= (input->get_data() + input->get_sizeBuf()))
{
input->set_nextChar( input->get_data() + input->get_sizeBuf() );
return;
}
// Cases deliberately fall through (see note A in antlrconvertutf.c)
// Legal UTF8 is only 4 bytes but 6 bytes could be used in old UTF8 so
// we allow it.
//
ch = 0;
switch (extraBytesToRead)
{
case 5: ch += *nextChar++; ch <<= 6;
case 4: ch += *nextChar++; ch <<= 6;
case 3: ch += *nextChar++; ch <<= 6;
case 2: ch += *nextChar++; ch <<= 6;
case 1: ch += *nextChar++; ch <<= 6;
case 0: ch += *nextChar++;
}
// Magically correct the input value
//
ch -= offsetsFromUTF8[extraBytesToRead];
if (ch == input->get_newlineChar())
{
/* Reset for start of a new line of input
*/
input->inc_line();
input->set_charPositionInLine(0);
input->set_currentLine(nextChar);
}
// Update input pointer
//
input->set_nextChar(nextChar);
}
}
/** \brief Return the input element assuming a UTF8 input
*
* \param[in] input Input stream context pointer
* \param[in] la 1 based offset of next input stream element
*
* \return Next input character in internal ANTLR3 encoding (UTF32)
*/
template<class ImplTraits, class SuperType>
ANTLR_UCHAR UTF8_IntStream<ImplTraits, SuperType>::_LA(ANTLR_INT32 la)
{
SuperType* input = this->get_super();
const ANTLR_UINT32* trailingBytesForUTF8 = UTF8_IntStream::TrailingBytesForUTF8();
const UTF32* offsetsFromUTF8 = UTF8_IntStream::OffsetsFromUTF8();
ANTLR_UINT32 extraBytesToRead;
ANTLR_UCHAR ch;
ANTLR_UINT8* nextChar;
nextChar = input->get_nextChar();
// Do we need to traverse forwards or backwards?
// - LA(0) is treated as LA(1) and we assume that the nextChar is
// already positioned.
// - LA(n+) ; n>1 means we must traverse forward n-1 characters catering for UTF8 encoding
// - LA(-n) means we must traverse backwards n chracters
//
if (la > 1) {
// Make sure that we have at least one character left before trying to
// loop through the buffer.
//
if (nextChar < (input->get_data() + input->get_sizeBuf()))
{
// Now traverse n-1 characters forward
//
while (--la > 0)
{
// Does the next character require trailing bytes?
// If so advance the pointer by that many bytes as well as advancing
// one position for what will be at least a single byte character.
//
nextChar += trailingBytesForUTF8[*nextChar] + 1;
// Does that calculation take us past the byte length of the buffer?
//
if (nextChar >= (input->get_data() + input->get_sizeBuf()))
{
return ANTLR_CHARSTREAM_EOF;
}
}
}
else
{
return ANTLR_CHARSTREAM_EOF;
}
}
else
{
// LA is negative so we decrease the pointer by n character positions
//
while (nextChar > input->get_data() && la++ < 0)
{
// Traversing backwards in UTF8 means decermenting by one
// then continuing to decrement while ever a character pattern
// is flagged as being a trailing byte of an encoded code point.
// Trailing UTF8 bytes always start with 10 in binary. We assumne that
// the UTF8 is well formed and do not check boundary conditions
//
nextChar--;
while ((*nextChar & 0xC0) == 0x80)
{
nextChar--;
}
}
}
// nextChar is now pointing at the UTF8 encoded character that we need to
// decode and return.
//
// Are there more bytes needed to make up the whole thing?
//
extraBytesToRead = trailingBytesForUTF8[*nextChar];
if (nextChar + extraBytesToRead >= (input->get_data() + input->get_sizeBuf()))
{
return ANTLR_CHARSTREAM_EOF;
}
// Cases deliberately fall through (see note A in antlrconvertutf.c)
//
ch = 0;
switch (extraBytesToRead)
{
case 5: ch += *nextChar++; ch <<= 6;
case 4: ch += *nextChar++; ch <<= 6;
case 3: ch += *nextChar++; ch <<= 6;
case 2: ch += *nextChar++; ch <<= 6;
case 1: ch += *nextChar++; ch <<= 6;
case 0: ch += *nextChar++;
}
// Magically correct the input value
//
ch -= offsetsFromUTF8[extraBytesToRead];
return ch;
}
template<class ImplTraits>
TokenIntStream<ImplTraits>::TokenIntStream()
{
m_cachedSize = 0;
}
template<class ImplTraits>
ANTLR_UINT32 TokenIntStream<ImplTraits>::get_cachedSize() const
{
return m_cachedSize;
}
template<class ImplTraits>
void TokenIntStream<ImplTraits>::set_cachedSize( ANTLR_UINT32 cachedSize )
{
m_cachedSize = cachedSize;
}
/** Move the input pointer to the next incoming token. The stream
* must become active with LT(1) available. consume() simply
* moves the input pointer so that LT(1) points at the next
* input symbol. Consume at least one token.
*
* Walk past any token not on the channel the parser is listening to.
*/
template<class ImplTraits>
void TokenIntStream<ImplTraits>::consume()
{
TokenStreamType* cts = static_cast<TokenStreamType*>(this);
if((ANTLR_UINT32)cts->get_p() < m_cachedSize )
{
cts->inc_p();
cts->set_p( cts->skipOffTokenChannels(cts->get_p()) );
}
}
template<class ImplTraits>
void TokenIntStream<ImplTraits>::consumeInitialHiddenTokens()
{
ANTLR_MARKER first;
ANTLR_INT32 i;
TokenStreamType* ts;
ts = this->get_super();
first = this->index();
for (i=0; i<first; i++)
{
ts->get_debugger()->consumeHiddenToken(ts->get(i));
}
ts->set_initialStreamState(false);
}
template<class ImplTraits>
ANTLR_UINT32 TokenIntStream<ImplTraits>::_LA( ANTLR_INT32 i )
{
const CommonTokenType* tok;
TokenStreamType* ts = static_cast<TokenStreamType*>(this);
tok = ts->_LT(i);
if (tok != NULL)
{
return tok->get_type();
}
else
{
return CommonTokenType::TOKEN_INVALID;
}
}
template<class ImplTraits>
ANTLR_MARKER TokenIntStream<ImplTraits>::mark()
{
BaseType::m_lastMarker = this->index();
return BaseType::m_lastMarker;
}
template<class ImplTraits>
ANTLR_UINT32 TokenIntStream<ImplTraits>::size()
{
if (this->get_cachedSize() > 0)
{
return this->get_cachedSize();
}
TokenStreamType* cts = this->get_super();
this->set_cachedSize( static_cast<ANTLR_UINT32>(cts->get_tokens().size()) );
return this->get_cachedSize();
}
template<class ImplTraits>
void TokenIntStream<ImplTraits>::release()
{
return;
}
template<class ImplTraits>
ANTLR_MARKER TokenIntStream<ImplTraits>::tindex()
{
return this->get_super()->get_p();
}
template<class ImplTraits>
void TokenIntStream<ImplTraits>::rewindLast()
{
this->rewind( this->get_lastMarker() );
}
template<class ImplTraits>
void TokenIntStream<ImplTraits>::rewind(ANTLR_MARKER marker)
{
return this->seek(marker);
}
template<class ImplTraits>
void TokenIntStream<ImplTraits>::seek(ANTLR_MARKER index)
{
TokenStreamType* cts = static_cast<TokenStreamType*>(this);
cts->set_p( static_cast<ANTLR_INT32>(index) );
}
/// Return a string that represents the name assoicated with the input source
///
/// /param[in] is The ANTLR3_INT_STREAM interface that is representing this token stream.
///
/// /returns
/// /implements ANTLR3_INT_STREAM_struct::getSourceName()
///
template<class ImplTraits>
typename TokenIntStream<ImplTraits>::StringType
TokenIntStream<ImplTraits>::getSourceName()
{
// Slightly convoluted as we must trace back to the lexer's input source
// via the token source. The streamName that is here is not initialized
// because this is a token stream, not a file or string stream, which are the
// only things that have a context for a source name.
//
return this->get_super()->get_tokenSource()->get_fileName();
}
template<class ImplTraits>
void TreeNodeIntStream<ImplTraits>::consume()
{
CommonTreeNodeStreamType* ctns = this->get_super();
if( ctns->get_p() == -1 )
ctns->fillBufferRoot();
ctns->inc_p();
}
template<class ImplTraits>
ANTLR_MARKER TreeNodeIntStream<ImplTraits>::tindex()
{
CommonTreeNodeStreamType* ctns = this->get_super();
return (ANTLR_MARKER)(ctns->get_p());
}
template<class ImplTraits>
ANTLR_UINT32 TreeNodeIntStream<ImplTraits>::_LA(ANTLR_INT32 i)
{
CommonTreeNodeStreamType* tns = this->get_super();
// Ask LT for the 'token' at that position
//
TreeType* t = tns->_LT(i);
if (t == NULL)
{
return CommonTokenType::TOKEN_INVALID;
}
// Token node was there so return the type of it
//
return t->get_type();
}
template<class ImplTraits>
ANTLR_MARKER TreeNodeIntStream<ImplTraits>::mark()
{
CommonTreeNodeStreamType* ctns = this->get_super();
if (ctns->get_p() == -1)
{
ctns->fillBufferRoot();
}
// Return the current mark point
//
this->set_lastMarker( this->index() );
return this->get_lastMarker();
}
template<class ImplTraits>
void TreeNodeIntStream<ImplTraits>::release(ANTLR_MARKER marker)
{
}
template<class ImplTraits>
void TreeNodeIntStream<ImplTraits>::rewindMark(ANTLR_MARKER marker)
{
this->seek(marker);
}
template<class ImplTraits>
void TreeNodeIntStream<ImplTraits>::rewindLast()
{
this->seek( this->get_lastMarker() );
}
template<class ImplTraits>
void TreeNodeIntStream<ImplTraits>::seek(ANTLR_MARKER index)
{
CommonTreeNodeStreamType* ctns = this->get_super();
ctns->set_p( ANTLR_UINT32_CAST(index) );
}
template<class ImplTraits>
ANTLR_UINT32 TreeNodeIntStream<ImplTraits>::size()
{
CommonTreeNodeStreamType* ctns = this->get_super();
if (ctns->get_p() == -1)
{
ctns->fillBufferRoot();
}
return ctns->get_nodes().size();
}
ANTLR_END_NAMESPACE()