- YACC stands for Yet Another Compiler Compiler.
- YACC provides a tool to produce a parser for a given grammar.
- YACC is a program designed to compile a LALR (1) grammar.
- It is used to produce the source code of the syntactic analyzer of the language produced by LALR (1) grammar.
- The input of YACC is the rule or grammar and the output is a C program.
These are some points about YACC:
Input: A CFG- file.y
Output: A parser y.tab.c (yacc)
- The output file "file.output" contains the parsing tables.
- The file "file.tab.h" contains declarations.
- The parser called the yyparse ().
- Parser expects to use a function called yylex () to get tokens.
The basic operational sequence is as follows:
This file contains the desired grammar in YACC format.
It shows the YACC program.
It is the c source program created by YACC.
Executable file that will parse grammar given in gram.Y