UP Lecture 06

Compilers
Lexer Testing
(202402)

Transcript

1. jgs Compilers Lecture 06: Lexer Testing Dr. Javier Gonzalez-Sanchez jgonzalezs@up.edu.mx
2. jgs Previously …
3. Dr. Javier Gonzalez-Sanchez | Compilers | 3 jgs Class Lexer B,b 0 1 .. . Delimiter, operator, whitespace, quotation mark S0 SE S1 SE SE Stop S1 S2 SE SE SE Stop S2 SE S3 S3 SE Stop S3 SE S3 S3 SE Stop SE SE SE SE SE Stop
4. Dr. Javier Gonzalez-Sanchez | Compilers | 4 jgs Run
5. Dr. Javier Gonzalez-Sanchez | Compilers | 5 jgs Code https://github.com/javiergs/TheLexer
6. jgs Thoughts?
7. Dr. Javier Gonzalez-Sanchez | Compilers | 7 jgs DFA
8. Dr. Javier Gonzalez-Sanchez | Compilers | 8 jgs Test Yourselves Define a DFA for each case a) URLs a) Email addresses a) ZIP codes
9. jgs Next Step
10. Dr. Javier Gonzalez-Sanchez | Compilers | 10 jgs Homework Teams of Three Members
11. Dr. Javier Gonzalez-Sanchez | Compilers | 11 jgs Homework Programming Assignment Develop a Lexical Analyzer by coding a DFA
12. Dr. Javier Gonzalez-Sanchez | Compilers | 12 jgs Question
13. Dr. Javier Gonzalez-Sanchez | Compilers | 13 jgs Github Classroom https://classroom.github.com/a/CqP1SIpv
14. Dr. Javier Gonzalez-Sanchez | Compilers | 14 jgs Step 1
15. Dr. Javier Gonzalez-Sanchez | Compilers | 15 jgs Step 2
16. Dr. Javier Gonzalez-Sanchez | Compilers | 16 jgs Step 3
17. Dr. Javier Gonzalez-Sanchez | Compilers | 17 jgs Step 4
18. Dr. Javier Gonzalez-Sanchez | Compilers | 18 jgs Step 5
19. Dr. Javier Gonzalez-Sanchez | Compilers | 19 jgs Step 6
20. Dr. Javier Gonzalez-Sanchez | Compilers | 20 jgs Step 7
21. Dr. Javier Gonzalez-Sanchez | Compilers | 21 jgs Step 8
22. Dr. Javier Gonzalez-Sanchez | Compilers | 22 jgs Step 9
23. Dr. Javier Gonzalez-Sanchez | Compilers | 23 jgs Step 10
24. Dr. Javier Gonzalez-Sanchez | Compilers | 24 jgs Step 11
25. jgs Testing
26. Dr. Javier Gonzalez-Sanchez | Compilers | 26 jgs Code | input.txt hello;world cse340 up 2013/05/31 // end boolean $xx= ((((((((23WE + 44 - 3 / 2 % 45 <=17) > 0xfffff.34.45;
27. Javier Gonzalez-Sanchez | SER332 | Spring 2018 | 27 jgs DELIMITER ( DELIMITER ( DELIMITER ( DELIMITER ( ERROR 23WE OPERATOR + INTEGER 44 OPERATOR - INTEGER 3 OPERATOR / INTEGER 2 OPERATOR % INTEGER 45 OPERATOR < OPERATOR = INTEGER 17 DELIMITER ) OPERATOR > ERROR 0xfffff.34.45 DELIMITER ; IDENTIFIER hello DELIMITER ; IDENTIFIER world IDENTIFIER cse340 IDENTIFIER up INTEGER 2013 OPERATOR / OCTAL 05 OPERATOR / INTEGER 31 OPERATOR / OPERATOR / IDENTIFIER end KEYWORD boolean IDENTIFIER $xx OPERATOR = DELIMITER ( DELIMITER ( DELIMITER ( DELIMITER ( Code | output.txt
28. Dr. Javier Gonzalez-Sanchez | Compilers | 28 jgs Test
29. Dr. Javier Gonzalez-Sanchez | Compilers | 29 jgs One Last Thing
30. Dr. Javier Gonzalez-Sanchez | Compilers | 30 jgs Questions
31. Dr. Javier Gonzalez-Sanchez | Compilers | 31 jgs Homework 1. Finish Your Lexer. Team Project. Due in a week. 2. Quiz 02 is Open (due Tuesday before class)
32. jgs Compilers Javier Gonzalez-Sanchez, Ph.D. jgonzalezs@up.edu.mx Spring 2024 Copyright. These slides can only be used as study material for the Compilers course at Universidad Panamericana. They cannot be distributed or used for another purpose.