Difference between revisions of "Fall 2020: System Programming Lab"
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| − | | style="width: 60%" | Write a Lex specification program that generates a C program which takes a string “abcd” and prints the following output: | + | | style="width: 60%" | Write a Lex specification program that generates a C program which takes a string “abcd” and prints the following output:<br> |
| − | abcd | + | abcd <br> |
| − | abc | + | abc<br> |
| − | ab | + | ab<br> |
a | a | ||
| style="width: 15%" | Lab Exercise No. 7 || | | style="width: 15%" | Lab Exercise No. 7 || | ||
Revision as of 22:59, 22 September 2020
Contents
Resources
- An introductory tutorial on Lex.
- LEX & YACC TUTORIAL by Tom Niemann [1]
- Lex Basics on javatpoint [2]
- Lex on Windows [3]
Lab 1: Getting Started ( week of 10th August 2020 )
| Q. NO. | Program | Lab Exercise No. | Remarks |
|---|---|---|---|
| 1 | Write a Lex Program to count number of words | Practice Set No. 1(1) | |
| 2 | Write a Lex program to count the number of lines and characters in the input file. | Lab Exercise No. 1 | |
| 3 | Write a Lex Program to count the number of lines, tabs and spaces used in the input. | Practice Set No. 1(2) | |
| 4 | Write a Lex Program to count the number of lines, words, small letters, capital letters, digits, special characters, and finally all characters. | Practice Set No. 1(3) |
Lab 2-3 ( week of 17th & 24th August 2020 )
| Q. NO. | Program | Lab Exercise No. | Remarks |
|---|---|---|---|
| 1 | Write a Lex program to count the number of vowels and consonants in a given string | Practice Set No. 2(1) | |
| 2 | Write a Lex program that implements the Caesar cipher. It replaces every letter with the one three letters after(right shift) in an alphabetical order, wrapping around at Z e.g a is replaced by d ,d by e ,and so on z by c. | Lab Exercise No. 2 | Read about Caesar Cipher from [4] |
Lab 4 ( week of 31st August 2020 )
| Q. NO. | Program | Lab Exercise No. | Remarks |
|---|---|---|---|
| 1 | Write a Lex program that finds the longest word (defined as a contiguous string of upper and lower case letters) in the input. | Lab Exercise No. 3 | |
| 2 | Write a Lex program that distinguishes keywords, integers, floats, identifiers, operators, and comments in any simple programming language. | Lab Exercise No. 4 |
Lab 5-6 ( week of 7th & 14th September 2020 )
| Q. NO. | Program | Lab Exercise No. | Remarks |
|---|---|---|---|
| 1 | Write a Lex program to count the number of identifiers in a c file. | Lab Exercise No. 5 | |
| 2 | Write a Lex program to count the number of words ,characters ,blank spaces and lines in c file. | Lab Exercise No. 6 |
Lab 7 ( week of 21st September 2020 )
| Q. NO. | Program | Lab Exercise No. | Remarks |
|---|---|---|---|
| 1 | Write a Lex specification program that generates a C program which takes a string “abcd” and prints the following output: abcd |
Lab Exercise No. 7 | |
| 2 | Write a Lex program to recognize a valid arithmetic expression. | Lab Exercise No. 8 |
