?? flexskel.cc
字號:
yy_next_state = yy_try_NUL_trans( yy_current_state );
yy_bp = yy___text + YY_MORE_ADJ;
if ( yy_next_state )
{
/* consume the NUL */
yy_cp = ++yy_c_buf_p;
yy_current_state = yy_next_state;
goto yy_match;
}
else
{
%% code to do backtracking for compressed tables and set up yy_cp goes here
goto yy_find_action;
}
}
else switch ( yy_get_next_buffer() )
{
case EOB_ACT_END_OF_FILE:
{
yy_did_buffer_switch_on_eof = 0;
if ( yywrap() )
{
/* note: because we've taken care in
* yy_get_next_buffer() to have set up yy___text,
* we can now set up yy_c_buf_p so that if some
* total hoser (like flex itself) wants
* to call the scanner after we return the
* YY_NULL, it'll still work - another YY_NULL
* will get returned.
*/
yy_c_buf_p = yy___text + YY_MORE_ADJ;
yy_act = YY_STATE_EOF((yy_start - 1) / 2);
goto do_action;
}
else
{
if ( ! yy_did_buffer_switch_on_eof )
YY_NEW_FILE;
}
}
break;
case EOB_ACT_CONTINUE_SCAN:
yy_c_buf_p = yy___text + yy_amount_of_matched_text;
yy_current_state = yy_get_previous_state();
yy_cp = yy_c_buf_p;
yy_bp = yy___text + YY_MORE_ADJ;
goto yy_match;
case EOB_ACT_LAST_MATCH:
yy_c_buf_p =
&YY_@_CURRENT_BUFFER->yy_ch_buf[yy_n_chars];
yy_current_state = yy_get_previous_state();
yy_cp = yy_c_buf_p;
yy_bp = yy___text + YY_MORE_ADJ;
goto yy_find_action;
}
break;
}
default:
#if YY_@_DEBUG != 0
#ifndef YY_@_IOSTREAM
fprintf(yy___stderr , "action # %d\n", yy_act );
#else
yy___stderr <<"action # "<<(int)yy_act<<endl;
#endif
#endif
YY_FATAL_ERROR(
"fatal flex scanner internal error--no action found" );
}
}
yyterminate();/* avoid the no return value error message on MS-C7/dos */
}
/* yy_get_next_buffer - try to read in a new buffer
*
* synopsis
* int yy_get_next_buffer();
*
* returns a code representing an action
* EOB_ACT_LAST_MATCH -
* EOB_ACT_CONTINUE_SCAN - continue scanning from current position
* EOB_ACT_END_OF_FILE - end of file
*/
#ifndef YY_USE_CLASS
static int yy_get_next_buffer()
#else
int YY_@_CLASS::yy_get_next_buffer()
#endif
{
register YY_@_CHAR *dest = YY_@_CURRENT_BUFFER->yy_ch_buf;
register YY_@_CHAR *source = yy___text - 1; /* copy prev. char, too */
register int number_to_move, i;
int ret_val;
if ( yy_c_buf_p > &YY_@_CURRENT_BUFFER->yy_ch_buf[yy_n_chars + 1] )
YY_FATAL_ERROR(
"fatal flex scanner internal error--end of buffer missed" );
/* try to read more data */
/* first move last chars to start of buffer */
number_to_move = yy_c_buf_p - yy___text;
for ( i = 0; i < number_to_move; ++i )
*(dest++) = *(source++);
if ( YY_@_CURRENT_BUFFER->yy_eof_status != EOF_NOT_SEEN )
/* don't do the read, it's not guaranteed to return an EOF,
* just force an EOF
*/
yy_n_chars = 0;
else
{
int num_to_read = YY_@_CURRENT_BUFFER->yy_buf_size - number_to_move - 1;
if ( num_to_read > YY_READ_BUF_SIZE )
num_to_read = YY_READ_BUF_SIZE;
else if ( num_to_read <= 0 )
YY_FATAL_ERROR( "fatal error - scanner input buffer overflow" );
/* read in more data */
YY_INPUT( (&YY_@_CURRENT_BUFFER->yy_ch_buf[number_to_move]),
yy_n_chars, num_to_read );
}
if ( yy_n_chars == 0 )
{
if ( number_to_move - YY_MORE_ADJ == 1 )
{
ret_val = EOB_ACT_END_OF_FILE;
YY_@_CURRENT_BUFFER->yy_eof_status = EOF_DONE;
}
else
{
ret_val = EOB_ACT_LAST_MATCH;
YY_@_CURRENT_BUFFER->yy_eof_status = EOF_PENDING;
}
}
else
ret_val = EOB_ACT_CONTINUE_SCAN;
yy_n_chars += number_to_move;
YY_@_CURRENT_BUFFER->yy_ch_buf[yy_n_chars] = YY_END_OF_BUFFER_CHAR;
YY_@_CURRENT_BUFFER->yy_ch_buf[yy_n_chars + 1] = YY_END_OF_BUFFER_CHAR;
/* yy___text begins at the second character in yy_ch_buf; the first
* character is the one which preceded it before reading in the latest
* buffer; it needs to be kept around in case it's a newline, so
* yy_get_previous_state() will have with '^' rules active
*/
yy___text = &YY_@_CURRENT_BUFFER->yy_ch_buf[1];
return ( ret_val );
}
/* yy_get_previous_state - get the state just before the EOB char was reached
*
* synopsis
* yy_state_type yy_get_previous_state();
*/
#ifndef YY_USE_CLASS
static yy_state_type yy_get_previous_state()
#else
long YY_@_CLASS::yy_get_previous_state_()
#endif
{
register yy_state_type yy_current_state;
register YY_@_CHAR *yy_cp;
%% code to get the start state into yy_current_state goes here
for ( yy_cp = yy___text + YY_MORE_ADJ; yy_cp < yy_c_buf_p; ++yy_cp )
{
%% code to find the next state goes here
}
#ifndef YY_USE_CLASS
return ( yy_current_state );
#else
return (long)( yy_current_state );
#endif
}
/* yy_try_NUL_trans - try to make a transition on the NUL character
*
* synopsis
* next_state = yy_try_NUL_trans( current_state );
*/
#ifndef YY_USE_CLASS
#ifdef YY_USE_PROTOS
static yy_state_type yy_try_NUL_trans( register yy_state_type yy_current_state )
#else
static yy_state_type yy_try_NUL_trans( yy_current_state )
register yy_state_type yy_current_state;
#endif
#else
long YY_@_CLASS::yy_try_NUL_trans_(long yy_current_state_)
#endif
{
#ifndef YY_USE_CLASS
#else
yy_state_type yy_current_state=(yy_state_type)yy_current_state_;
#endif
register int yy_is_jam;
%% code to find the next state, and perhaps do backtracking, goes here
#ifndef YY_USE_CLASS
return ( yy_is_jam ? 0 : yy_current_state );
#else
return (long)( yy_is_jam ? 0 : yy_current_state );
#endif
}
#ifndef YY_USE_CLASS
#ifdef YY_USE_PROTOS
static void yyunput( YY_@_CHAR c, register YY_@_CHAR *yy_bp )
#else
static void yyunput( c, yy_bp )
YY_@_CHAR c;
register YY_@_CHAR *yy_bp;
#endif
#else
void YY_@_CLASS::yyunput( YY_@_CHAR c, YY_@_CHAR *yy_bp )
#endif
{
register YY_@_CHAR *yy_cp = yy_c_buf_p;
/* undo effects of setting up yy___text */
*yy_cp = yy_hold_char;
if ( yy_cp < YY_@_CURRENT_BUFFER->yy_ch_buf + 2 )
{ /* need to shift things up to make room */
register int number_to_move = yy_n_chars + 2; /* +2 for EOB chars */
register YY_@_CHAR *dest =
&YY_@_CURRENT_BUFFER->yy_ch_buf[YY_@_CURRENT_BUFFER->yy_buf_size + 2];
register YY_@_CHAR *source =
&YY_@_CURRENT_BUFFER->yy_ch_buf[number_to_move];
while ( source > YY_@_CURRENT_BUFFER->yy_ch_buf )
*--dest = *--source;
yy_cp += dest - source;
yy_bp += dest - source;
yy_n_chars = YY_@_CURRENT_BUFFER->yy_buf_size;
if ( yy_cp < YY_@_CURRENT_BUFFER->yy_ch_buf + 2 )
YY_FATAL_ERROR( "flex scanner push-back overflow" );
}
if ( yy_cp > yy_bp && yy_cp[-1] == '\n' )
yy_cp[-2] = '\n';
*--yy_cp = c;
/* note: the formal parameter *must* be called "yy_bp" for this
* macro to now work correctly
*/
YY_DO_BEFORE_ACTION; /* set up yy___text again */
}
#ifndef YY_USE_CLASS
#ifdef __cplusplus
static int yyinput()
#else
static int input()
#endif
#else
int YY_@_CLASS::input()
#endif
{
int c;
YY_@_CHAR *yy_cp = yy_c_buf_p;
*yy_cp = yy_hold_char;
if ( *yy_c_buf_p == YY_END_OF_BUFFER_CHAR )
{
/* yy_c_buf_p now points to the character we want to return.
* If this occurs *before* the EOB characters, then it's a
* valid NUL; if not, then we've hit the end of the buffer.
*/
if ( yy_c_buf_p < &YY_@_CURRENT_BUFFER->yy_ch_buf[yy_n_chars] )
/* this was really a NUL */
*yy_c_buf_p = '\0';
else
{ /* need more input */
yy___text = yy_c_buf_p;
++yy_c_buf_p;
switch ( yy_get_next_buffer() )
{
case EOB_ACT_END_OF_FILE:
{
if ( yywrap() )
{
yy_c_buf_p = yy___text + YY_MORE_ADJ;
return ( EOF );
}
YY_NEW_FILE;
#ifndef YY_USE_CLASS
#ifdef __cplusplus
return ( yyinput() );
#else
return ( input() );
#endif
#else
return ( input() );
#endif
}
break;
case EOB_ACT_CONTINUE_SCAN:
yy_c_buf_p = yy___text + YY_MORE_ADJ;
break;
case EOB_ACT_LAST_MATCH:
#ifndef YY_USE_CLASS
#ifdef __cplusplus
YY_FATAL_ERROR( "unexpected last match in yyinput()" );
#else
YY_FATAL_ERROR( "unexpected last match in input()" );
#endif
#else
YY_FATAL_ERROR( "unexpected last match in YY_@_CLASS::input()" );
#endif
}
}
}
c = *yy_c_buf_p;
yy_hold_char = *++yy_c_buf_p;
return ( c );
}
#ifndef YY_USE_CLASS
#ifdef YY_USE_PROTOS
void YY_@_RESTART( YY_@_IFILE *input_file )
#else
void YY_@_RESTART( input_file )
YY_@_IFILE *input_file;
#endif
#else
void YY_@_CLASS::YY_@_RESTART ( YY_@_IFILE *input_file )
#endif
{
YY_@_INIT_BUFFER( YY_@_CURRENT_BUFFER, input_file );
YY_@_LOAD_BUFFER_STATE();
}
#ifndef YY_USE_CLASS
#ifdef YY_USE_PROTOS
void YY_@_SWITCH_TO_BUFFER( YY_BUFFER_STATE new_buffer )
#else
void YY_@_SWITCH_TO_BUFFER( new_buffer )
YY_BUFFER_STATE new_buffer;
#endif
#else
void YY_@_CLASS::YY_@_SWITCH_TO_BUFFER( YY_BUFFER_STATE new_buffer )
#endif
{
if ( YY_@_CURRENT_BUFFER == new_buffer )
return;
if ( YY_@_CURRENT_BUFFER )
{
/* flush out information for old buffer */
*yy_c_buf_p = yy_hold_char;
YY_@_CURRENT_BUFFER->yy_buf_pos = yy_c_buf_p;
YY_@_CURRENT_BUFFER->yy_n_chars = yy_n_chars;
}
YY_@_CURRENT_BUFFER = new_buffer;
YY_@_LOAD_BUFFER_STATE();
/* we don't actually know whether we did this switch during
* EOF (yywrap()) processing, but the only time this flag
* is looked at is after yywrap() is called, so it's safe
* to go ahead and always set it.
*/
yy_did_buffer_switch_on_eof = 1;
}
#ifndef YY_USE_CLASS
#ifdef YY_USE_PROTOS
void YY_@_LOAD_BUFFER_STATE( void )
#else
void YY_@_LOAD_BUFFER_STATE()
#endif
#else
void YY_@_CLASS::YY_@_LOAD_BUFFER_STATE( )
#endif
{
yy_n_chars = YY_@_CURRENT_BUFFER->yy_n_chars;
yy___text = yy_c_buf_p = YY_@_CURRENT_BUFFER->yy_buf_pos;
yy___in = YY_@_CURRENT_BUFFER->yy_input_file;
yy_hold_char = *yy_c_buf_p;
}
#ifndef YY_USE_CLASS
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE YY_@_CREATE_BUFFER( YY_@_IFILE *file, int size )
#else
YY_BUFFER_STATE YY_@_CREATE_BUFFER( file, size )
YY_@_IFILE *file;
int size;
#endif
#else
YY_BUFFER_STATE YY_@_CLASS::YY_@_CREATE_BUFFER( YY_@_IFILE *file, int size )
#endif
{
YY_BUFFER_STATE b;
b = (YY_BUFFER_STATE) malloc( sizeof( struct yy_buffer_state ) );
if ( ! b )
YY_FATAL_ERROR( "out of dynamic memory in YY_@_CREATE_BUFFER()" );
b->yy_buf_size = size;
/* yy_ch_buf has to be 2 characters longer than the size given because
* we need to put in 2 end-of-buffer characters.
*/
b->yy_ch_buf = (YY_@_CHAR *) malloc( (unsigned) (b->yy_buf_size + 2) );
if ( ! b->yy_ch_buf )
YY_FATAL_ERROR( "out of dynamic memory in YY_@_CREATE_BUFFER()" );
YY_@_INIT_BUFFER( b, file );
return ( b );
}
#ifndef YY_USE_CLASS
#ifdef YY_USE_PROTOS
void YY_@_DELETE_BUFFER( YY_BUFFER_STATE b )
#else
void YY_@_DELETE_BUFFER( b )
YY_BUFFER_STATE b;
#endif
#else
void YY_@_CLASS::YY_@_DELETE_BUFFER( YY_BUFFER_STATE b )
#endif
{
if ( b == YY_@_CURRENT_BUFFER )
YY_@_CURRENT_BUFFER = (YY_BUFFER_STATE) 0;
free( (char *) b->yy_ch_buf );
free( (char *) b );
}
#ifndef YY_USE_CLASS
#ifdef YY_USE_PROTOS
void YY_@_INIT_BUFFER( YY_BUFFER_STATE b, YY_@_IFILE *file )
#else
void YY_@_INIT_BUFFER( b, file )
YY_BUFFER_STATE b;
YY_@_IFILE *file;
#endif
#else
void YY_@_CLASS::YY_@_INIT_BUFFER( YY_BUFFER_STATE b, YY_@_IFILE *file)
#endif
{
b->yy_input_file = file;
/* we put in the '\n' and start reading from [1] so that an
* initial match-at-newline will be true.
*/
b->yy_ch_buf[0] = '\n';
b->yy_n_chars = 1;
/* we always need two end-of-buffer characters. The first causes
* a transition to the end-of-buffer state. The second causes
* a jam in that state.
*/
b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
b->yy_ch_buf[2] = YY_END_OF_BUFFER_CHAR;
b->yy_buf_pos = &b->yy_ch_buf[1];
b->yy_eof_status = EOF_NOT_SEEN;
}
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