Lex is a computer program that generates lexical analyzers. Lex reads an input stream specifying the lexical analyzer and outputs source code implementing the lexer in the C programming language.
The commands for executing the lex program are:
lex abc.l (abc is the file name) gcc lex.yy.c -ll ./a.out
Let’s see lex program to check whether input number is odd or even.
Input : 22 Output : Input Number is Even Input : 53 Output : Input Number is odd
Below is the implementation:
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