The goal of this project is to give you hands-on experience with lexical analysis. You will extend the provided lexical analyzer to support more token types. The next section lists al new token types that you need to implement 1. Description Modify the lexer to support the following 3 token types: REALNUM (pdigit digit*) DOT digit digit* + 0 DOT digit* pdigit digit* BASE08NUM= ((pdigit8 digit) + 0) (x) (08) BASEI6NUM= ((paigit 16 dgit 16*) + 0) (x) (16) Where pdigit 1+ 2+ 3+ 4+5+6+7+8+9 digit =0+1+2+3+4+5+6+7+8+9 pdigit8 =1+2+3+4+5+6+7 digit8 =0+1+2+3+4+5+6+7 pdigit16 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + A + B + C + D + E + F digit16-0+12+ 3+4+5+67+8+ 9+A+B+C+DE+F Note that NUM and DOT are already defined in the lexer, but here are the regular expressions for the sake of completeness (DOT is a single dot character, the quotes are used to avoid ambiguity) NUM = (pdigit digit*) + 0 DOT = '.' The list of valid tokens including the existing tokens in the code would be as follows. This list should be used to determine the token, if the input matches more than one regular expression. 1. IF 2. WHILE 3. DO 4. THEN 5. PRINT 6. PLUS 7. MINUS 8. DIV 9. MULT 10. EQUAL 11. COLON 12. COMMA 15. RBRAC 16. LPAREN 17. RPAREN 18. NOTEQUAL 19. GREATER 20. LESS 21. LTEOQ 22. GTEQ 23. DOT 24. NUM 25. ID 26. REALNUM 27. BASEO8NUM 28. BASE16NUM 13. SEMICOLON 14. LBRAC The goal of this project is to give you hands-on experience with lexical analysis. You will extend the provided lexical analyzer to support more token types. The next section lists al new token types that you need to implement 1. Description Modify the lexer to support the following 3 token types: REALNUM (pdigit digit*) DOT digit digit* + 0 DOT digit* pdigit digit* BASE08NUM= ((pdigit8 digit) + 0) (x) (08) BASEI6NUM= ((paigit 16 dgit 16*) + 0) (x) (16) Where pdigit 1+ 2+ 3+ 4+5+6+7+8+9 digit =0+1+2+3+4+5+6+7+8+9 pdigit8 =1+2+3+4+5+6+7 digit8 =0+1+2+3+4+5+6+7 pdigit16 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + A + B + C + D + E + F digit16-0+12+ 3+4+5+67+8+ 9+A+B+C+DE+F Note that NUM and DOT are already defined in the lexer, but here are the regular expressions for the sake of completeness (DOT is a single dot character, the quotes are used to avoid ambiguity) NUM = (pdigit digit*) + 0 DOT = '.' The list of valid tokens including the existing tokens in the code would be as follows. This list should be used to determine the token, if the input matches more than one regular expression. 1. IF 2. WHILE 3. DO 4. THEN 5. PRINT 6. PLUS 7. MINUS 8. DIV 9. MULT 10. EQUAL 11. COLON 12. COMMA 15. RBRAC 16. LPAREN 17. RPAREN 18. NOTEQUAL 19. GREATER 20. LESS 21. LTEOQ 22. GTEQ 23. DOT 24. NUM 25. ID 26. REALNUM 27. BASEO8NUM 28. BASE16NUM 13. SEMICOLON 14. LBRAC