Problem: YACC program to implement a Calculator and recognize a valid Arithmetic expression.
Explanation:
Yacc (for “yet another compiler compiler.”) is the standard parser generator for the Unix operating system. An open source program, yacc generates code for the parser in the C programming language. The acronym is usually rendered in lowercase but is occasionally seen as YACC or Yacc.
Examples:
Input: 4+5
Output: Result=9
Entered arithmetic expression is Valid
Input: 10-5
Output: Result=5
Entered arithmetic expression is Valid
Input: 10+5-
Output:
Entered arithmetic expression is Invalid
Input: 10/5
Output: Result=2
Entered arithmetic expression is Valid
Input: (2+5)*3
Output: Result=21
Entered arithmetic expression is Valid
Input: (2*4)+
Output:
Entered arithmetic expression is Invalid
Input: 2%5
Output: Result=2
Entered arithmetic expression is Valid
Lexical Analyzer Source Code:
Parser Source Code :
Output:
👁 Image
