Compiler Design

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Laboratory Incharge:
Prof. M. M. Patel
Email:  mmpatel.comp@srpec.org

Experiments to be Performed:

• • Introduction to LEX
• • LEX program to show the message when enter key is pressed.
• • LEX program to check whether the string is in small case letter, uppercase letter or contains mixed letter
• • LEX program to print the name of the user with message when the enter key is pressed using the function.
• • LEX program to check whether the given word is vowel or not using the function.
• • LEX program to recognizes the keyword if, begin and identifier which is defined as any string starts with letter and followed by letter or digit.
• • Program using LEX to count the number of characters, words, spaces and lines in a given input file.
• • LEX program to check whether the parenthesis in the statement is missing or not
• • Lex program which replaces all the occurrances of “rama” with “RAMA” and “sita” with “SITA”. It demonstrates the use of string as a direct pattern in the specification file.
• • Lex program to count all occurrences of “ rama “ and “ sita “ in a given file.
• • Introduction to Yacc
• • Yacc program which identify the language L = Σ, where Σ = {1,0} if and only if the string starts with 10