mql.flex.cpp

件主要用于帮助计算机爱好者学习蚁群算法时做有关蚁群算法的试验。蚁群算法作为一种优秀的新兴的算法

	YY_BREAK
case 56:
YY_RULE_SETUP
#line 112 "MQL.lex"
{  count(); return('+'); }
	YY_BREAK
case 57:
YY_RULE_SETUP
#line 113 "MQL.lex"
{  count(); return('*'); }
	YY_BREAK
case 58:
YY_RULE_SETUP
#line 114 "MQL.lex"
{  count(); return('/'); }
	YY_BREAK
case 59:
YY_RULE_SETUP
#line 115 "MQL.lex"
{  count(); return('%'); }
	YY_BREAK
case 60:
YY_RULE_SETUP
#line 116 "MQL.lex"
{  count(); return('='); }
	YY_BREAK
case 61:
YY_RULE_SETUP
#line 117 "MQL.lex"
{  count(); return(';'); }
	YY_BREAK
case 62:
YY_RULE_SETUP
#line 118 "MQL.lex"
{  count(); return('('); }
	YY_BREAK
case 63:
YY_RULE_SETUP
#line 119 "MQL.lex"
{  count(); return(')'); }
	YY_BREAK
case 64:
YY_RULE_SETUP
#line 120 "MQL.lex"
{  count(); return('{'); }
	YY_BREAK
case 65:
YY_RULE_SETUP
#line 121 "MQL.lex"
{  count(); return('}'); }
	YY_BREAK
case 66:
YY_RULE_SETUP
#line 122 "MQL.lex"
{  count(); return('!'); }
	YY_BREAK
case 67:
YY_RULE_SETUP
#line 123 "MQL.lex"
{  count(); return('<'); }
	YY_BREAK
case 68:
YY_RULE_SETUP
#line 124 "MQL.lex"
{  count(); return('>'); }
	YY_BREAK
case 69:
YY_RULE_SETUP
#line 125 "MQL.lex"
{  count(); return(LE_OP); }
	YY_BREAK
case 70:
YY_RULE_SETUP
#line 126 "MQL.lex"
{  count(); return(GE_OP); }
	YY_BREAK
case 71:
YY_RULE_SETUP
#line 127 "MQL.lex"
{  count(); return(LEFT_OP); }
	YY_BREAK
case 72:
YY_RULE_SETUP
#line 128 "MQL.lex"
{  count(); return(RIGHT_OP); }
	YY_BREAK
case 73:
YY_RULE_SETUP
#line 129 "MQL.lex"
{  count(); return(EQ_OP); }
	YY_BREAK
case 74:
YY_RULE_SETUP
#line 130 "MQL.lex"
{  count(); return(NE_OP); }
	YY_BREAK
case 75:
YY_RULE_SETUP
#line 131 "MQL.lex"
{  count(); return(','); }
	YY_BREAK
case 76:
YY_RULE_SETUP
#line 132 "MQL.lex"
{  count(); return('.'); }
	YY_BREAK
case 77:
YY_RULE_SETUP
#line 133 "MQL.lex"
{  count(); return('['); }
	YY_BREAK
case 78:
YY_RULE_SETUP
#line 134 "MQL.lex"
{  count(); return(']'); }
	YY_BREAK
case 79:
YY_RULE_SETUP
#line 136 "MQL.lex"
{  
	count();
	ParserState* cur_parser = static_cast<MyFlexLexer*>(this)->param;	
	cur_parser->get_parse_result()->s_val 
		= cur_parser->get_var_table()->new_stack_string();
	*(cur_parser->get_parse_result()->s_val) = YYText();
	return(IDENTIFIER); 
}
	YY_BREAK
case 80:
YY_RULE_SETUP
#line 145 "MQL.lex"
{  
	count();
	ParserState* cur_parser = static_cast<MyFlexLexer*>(this)->param;	
	cur_parser->get_parse_result()->i_val = atoi(YYText());
	return(INT_CONSTANT); 
}
	YY_BREAK
case 81:
YY_RULE_SETUP
#line 152 "MQL.lex"
{  
	count();
	ParserState* cur_parser = static_cast<MyFlexLexer*>(this)->param;	
	cur_parser->get_parse_result()->d_val = atof(YYText());
	return(DOUBLE_CONSTANT); 
}
	YY_BREAK
case 82:
YY_RULE_SETUP
#line 159 "MQL.lex"
{  
	count(); 
	ParserState* cur_parser = static_cast<MyFlexLexer*>(this)->param;	
	cur_parser->get_parse_result()->d_val = atof(YYText());
	return(DOUBLE_CONSTANT); 
}
	YY_BREAK
case 83:
YY_RULE_SETUP
#line 166 "MQL.lex"
{  
	count();
	ParserState* cur_parser = static_cast<MyFlexLexer*>(this)->param;	
	cur_parser->get_parse_result()->s_val 
		= cur_parser->get_var_table()->new_stack_string();
	// Removes the quote and unquote before assigning	
	*(cur_parser->get_parse_result()->s_val) = YYText() + 1;
	cur_parser->get_parse_result()->s_val->erase(
		cur_parser->get_parse_result()->s_val->size() - 1); 
	return(STRING_LITERAL); 
}
	YY_BREAK
case 84:
YY_RULE_SETUP
#line 178 "MQL.lex"
{ count(); }	// C++ style comment
	YY_BREAK
case 85:
YY_RULE_SETUP
#line 180 "MQL.lex"
{ count(); g_parser_line++; }
	YY_BREAK
case 86:
YY_RULE_SETUP
#line 181 "MQL.lex"
{ count(); }
	YY_BREAK
case 87:
YY_RULE_SETUP
#line 182 "MQL.lex"
{ count(); }	// Just strip these line breaks
	YY_BREAK
case 88:
YY_RULE_SETUP
#line 184 "MQL.lex"
{ 	fprintf(stderr, "Unrecognized symbol at %d\n", 
							g_parser_line); 
					}
	YY_BREAK
case 89:
YY_RULE_SETUP
#line 188 "MQL.lex"
ECHO;
	YY_BREAK
#line 1225 "MQL.flex.cpp"
case YY_STATE_EOF(INITIAL):
	yyterminate();

	case YY_END_OF_BUFFER:
		{
		/* Amount of text matched not including the EOB char. */
		int yy_amount_of_matched_text = (int) (yy_cp - yytext_ptr) - 1;

		/* Undo the effects of YY_DO_BEFORE_ACTION. */
		*yy_cp = yy_hold_char;
		YY_RESTORE_YY_MORE_OFFSET

		if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_NEW )
			{
			/* We're scanning a new file or input source.  It's
			 * possible that this happened because the user
			 * just pointed yyin at a new source and called
			 * yylex().  If so, then we have to assure
			 * consistency between yy_current_buffer and our
			 * globals.  Here is the right place to do so, because
			 * this is the first action (other than possibly a
			 * back-up) that will match for the new input source.
			 */
			yy_n_chars = yy_current_buffer->yy_n_chars;
			yy_current_buffer->yy_input_file = yyin;
			yy_current_buffer->yy_buffer_status = YY_BUFFER_NORMAL;
			}

		/* Note that here we test for yy_c_buf_p "<=" to the position
		 * of the first EOB in the buffer, since yy_c_buf_p will
		 * already have been incremented past the NUL character
		 * (since all states make transitions on EOB to the
		 * end-of-buffer state).  Contrast this with the test
		 * in input().
		 */
		if ( yy_c_buf_p <= &yy_current_buffer->yy_ch_buf[yy_n_chars] )
			{ /* This was really a NUL. */
			yy_state_type yy_next_state;

			yy_c_buf_p = yytext_ptr + yy_amount_of_matched_text;

			yy_current_state = yy_get_previous_state();

			/* Okay, we're now positioned to make the NUL
			 * transition.  We couldn't have
			 * yy_get_previous_state() go ahead and do it
			 * for us because it doesn't know how to deal
			 * with the possibility of jamming (and we don't
			 * want to build jamming into it because then it
			 * will run more slowly).
			 */

			yy_next_state = yy_try_NUL_trans( yy_current_state );

			yy_bp = yytext_ptr + 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
				{
				yy_cp = yy_c_buf_p;
				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
					 * yytext, 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 = yytext_ptr + YY_MORE_ADJ;

					yy_act = YY_STATE_EOF(YY_START);
					goto do_action;
					}

				else
					{
					if ( ! yy_did_buffer_switch_on_eof )
						YY_NEW_FILE;
					}
				break;
				}

			case EOB_ACT_CONTINUE_SCAN:
				yy_c_buf_p =
					yytext_ptr + yy_amount_of_matched_text;

				yy_current_state = yy_get_previous_state();

				yy_cp = yy_c_buf_p;
				yy_bp = yytext_ptr + 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 = yytext_ptr + YY_MORE_ADJ;
				goto yy_find_action;
			}
		break;
		}

	default:
		YY_FATAL_ERROR(
			"fatal flex scanner internal error--no action found" );
	} /* end of action switch */
		} /* end of scanning one token */
	} /* end of yylex */

yyFlexLexer::yyFlexLexer( istream* arg_yyin, ostream* arg_yyout )
	{
	yyin = arg_yyin;
	yyout = arg_yyout;
	yy_c_buf_p = 0;
	yy_init = 1;
	yy_start = 0;
	yy_flex_debug = 0;
	yylineno = 1;	// this will only get updated if %option yylineno

	yy_did_buffer_switch_on_eof = 0;

	yy_looking_for_trail_begin = 0;
	yy_more_flag = 0;
	yy_more_len = 0;
	yy_more_offset = yy_prev_more_offset = 0;

	yy_start_stack_ptr = yy_start_stack_depth = 0;
	yy_start_stack = 0;

	yy_current_buffer = 0;

#ifdef YY_USES_REJECT
	yy_state_buf = new yy_state_type[YY_BUF_SIZE + 2];
#else
	yy_state_buf = 0;
#endif
	}

yyFlexLexer::~yyFlexLexer()
	{
	delete yy_state_buf;
	yy_delete_buffer( yy_current_buffer );
	}

void yyFlexLexer::switch_streams( istream* new_in, ostream* new_out )
	{
	if ( new_in )
		{
		yy_delete_buffer( yy_current_buffer );
		yy_switch_to_buffer( yy_create_buffer( new_in, YY_BUF_SIZE ) );
		}

	if ( new_out )
		yyout = new_out;
	}

#ifdef YY_INTERACTIVE
int yyFlexLexer::LexerInput( char* buf, int /* max_size */ )
#else
int yyFlexLexer::LexerInput( char* buf, int max_size )
#endif
	{
	if ( yyin->eof() || yyin->fail() )
		return 0;

#ifdef YY_INTERACTIVE
	yyin->get( buf[0] );

	if ( yyin->eof() )
		return 0;

	if ( yyin->bad() )
		return -1;

	return 1;

#else
	(void) yyin->read( buf, max_size );

	if ( yyin->bad() )
		return -1;
	else
		return yyin->gcount();
#endif
	}

void yyFlexLexer::LexerOutput( const char* buf, int size )
	{
	(void) yyout->write( buf, size );
	}

/* yy_get_next_buffer - try to read in a new 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
 */

int yyFlexLexer::yy_get_next_buffer()
	{
	register char *dest = yy_current_buffer->yy_ch_buf;
	register char *source = yytext_ptr;
	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" );

	if ( yy_current_buffer->yy_fill_buffer == 0 )
		{ /* Don't try to fill the buffer, so this is an EOF. */
		if ( yy_c_buf_p - yytext_ptr - YY_MORE_ADJ == 1 )
			{
			/* We matched a single character, the EOB, so
			 * treat this as a final EOF.
			 */
			return EOB_ACT_END_OF_FILE;
			}

		else
			{
			/* We matched some text prior to the EOB, first
			 * process it.
			 */
			return EOB_ACT_LAST_MATCH;
			}
		}

	/* Try to read more data. */

	/* First move last chars to start of buffer. */
	number_to_move = (int) (yy_c_buf_p - yytext_ptr) - 1;

	for ( i = 0; i < number_to_move; ++i )
		*(dest++) = *(source++);

	if ( yy_current_buffer->yy_buffer_status == YY_BUFFER_EOF_PENDING )
		/* don't do the read, it's not guaranteed to return an EOF,
		 * just force an EOF
		 */
		yy_current_buffer->yy_n_chars = yy_n_chars = 0;

	else
		{
		int num_to_read =
			yy_current_buffer->yy_buf_size - number_to_move - 1;

		while ( num_to_read <= 0 )
			{ /* Not enough room in the buffer - grow it. */
#ifdef YY_USES_REJECT
			YY_FATAL_ERROR(
"input buffer overflow, can't enlarge buffer because scanner uses REJECT" );
#else

			/* just a shorter name for the current buffer */
			YY_BUFFER_STATE b = yy_current_buffer;

			int yy_c_buf_p_offset =
				(int) (yy_c_buf_p - b->yy_ch_buf);

			if ( b->yy_is_our_buffer )
				{
				int new_size = b->yy_buf_size * 2;

				if ( new_size <= 0 )
					b->yy_buf_size += b->yy_buf_size / 8;
				else
					b->yy_buf_size *= 2;

				b->yy_ch_buf = (char *)
					/* Include room in for 2 EOB chars. */
					yy_flex_realloc( (void *) b->yy_ch_buf,
							 b->yy_buf_size + 2 );
				}
			else
				/* Can't grow it, we don't own it. */
				b->yy_ch_buf = 0;

			if ( ! b->yy_ch_buf )