docs: public final void mHEX() throws RecognitionException {
  		try {
  			int _type = HEX;
  			int _channel = DEFAULT_TOKEN_CHANNEL;
  			// src/main/resources/org/drools/compiler/lang/DRL5Lexer.g:100:6: ( '0' ( 'x' | 'X' ) ( HexDigit )+ ( IntegerTypeSuffix )? )
  			// src/main/resources/org/drools/compiler/lang/DRL5Lexer.g:100:8: '0' ( 'x' | 'X' ) ( HexDigit )+ ( IntegerTypeSuffix )?
  			{
  			match('0'); if (state.failed) return;
  			if ( input.LA(1)=='X'||input.LA(1)=='x' ) {
  				input.consume();
  				state.failed=false;
  			}
  			else {
  				if (state.backtracking>0) {state.failed=true; return;}
  				MismatchedSetException mse = new MismatchedSetException(null,input);
  				recover(mse);
  				throw mse;
  			}
  			// src/main/resources/org/drools/compiler/lang/DRL5Lexer.g:100:22: ( HexDigit )+
  			int cnt16=0;
  			loop16:
  			while (true) {
  				int alt16=2;
  				int LA16_0 = input.LA(1);
  				if ( ((LA16_0 >= '0' && LA16_0 <= '9')||(LA16_0 >= 'A' && LA16_0 <= 'F')||(LA16_0 >= 'a' && LA16_0 <= 'f')) ) {
  					alt16=1;
  				}
  
  				switch (alt16) {
  				case 1 :
  					// src/main/resources/org/drools/compiler/lang/DRL5Lexer.g:
  					{
  					if ( (input.LA(1) >= '0' && input.LA(1) <= '9')||(input.LA(1) >= 'A' && input.LA(1) <= 'F')||(input.LA(1) >= 'a' && input.LA(1) <= 'f') ) {
  						input.consume();
  						state.failed=false;
  					}
  					else {
  						if (state.backtracking>0) {state.failed=true; return;}
  						MismatchedSetException mse = new MismatchedSetException(null,input);
  						recover(mse);
  						throw mse;
  					}
  					}
  					break;
  
  				default :
  					if ( cnt16 >= 1 ) break loop16;
  					if (state.backtracking>0) {state.failed=true; return;}
  					EarlyExitException eee = new EarlyExitException(16, input);
  					throw eee;
  				}
  				cnt16++;
  			}
  
  			// src/main/resources/org/drools/compiler/lang/DRL5Lexer.g:100:32: ( IntegerTypeSuffix )?
  			int alt17=2;
  			int LA17_0 = input.LA(1);
  			if ( (LA17_0=='I'||LA17_0=='L'||LA17_0=='l') ) {
  				alt17=1;
  			}
  			switch (alt17) {
  				case 1 :
  					// src/main/resources/org/drools/compiler/lang/DRL5Lexer.g:
  					{
  					if ( input.LA(1)=='I'||input.LA(1)=='L'||input.LA(1)=='l' ) {
  						input.consume();
  						state.failed=false;
  					}
  					else {
  						if (state.backtracking>0) {state.failed=true; return;}
  						MismatchedSetException mse = new MismatchedSetException(null,input);
  						recover(mse);
  						throw mse;
  					}
  					}
  					break;
  
  			}
  
  			}
  
  			state.type = _type;
  			state.channel = _channel;
  		}
  		finally {
  			// do for sure before leaving
  		}
  	}