Y file extension - Yet Another Compiler-Compiler (YACC) grammar file
What is y file? How to open y files?
File type specification:
The Y file extension is associated with the Yet Another Compiler-Compiler (YACC).
The computer program yacc is a parser generator developed by Stephen C. Johnson at AT&T for the Unix operating system. It generates a parser (the part of a compiler that tries to make syntactic sense of the source code) based on an analytic grammar written in a notation similar to BNF. Yacc generates the code for the parser in the C programming language.
The .y file stores grammar data.