1. Lexical analyser using C lang

2. Lexical analyser using Lex tool

3. Lex program to display number of lines, words, and characters in an input text

4. Lex program to convert substring abc to ABC from given input string

5. Lex program to find out total number of vowels and consonants from given input string

6. Yacc specification to recognize valid arithmetic expression that uses operators ,-,*,/ and parenthesis

7. Implement calculator using Lex and Yacc

8. Convert Expression to AST and traverse it to find result

9. NFA to DFA converter

10. Recursive descent parser

11. Shift Reduce Parser

12. Constant propagation

13. Simple intermediate code generator

14. First and Follow

15. YACC program to recognise string with grammar a^n b^n n>=0

16. Calculator that takes input either hex or decimal and prints output in both hex and decimal. (Using lex and yacc)

17. Intermediate code generator using lex and yacc

18. Infix to postfix using lex and yacc

19. Implement yacc program for shift reduce parser or shift reduce parsing techniques for the grammar E: E E|E-E|E*E|id

lex filename.l

bison -dy filename.y

gcc lex.yy.c y.tab.c