Yacc

Yacc
Original author(s)Stephen C. Johnson
Repository
Written inC
Operating systemUnix, Unix-like, Plan 9, Inferno
PlatformCross-platform
TypeCommand
LicensePlan 9: MIT License

Yacc (Yet Another Compiler-Compiler) is a computer program for the Unix operating system developed by Stephen C. Johnson. It is a lookahead left-to-right rightmost derivation (LALR) parser generator, generating a LALR parser (the part of a compiler that tries to make syntactic sense of the source code) based on a formal grammar, written in a notation similar to Backus–Naur form (BNF).[1] Yacc is supplied as a standard utility on BSD and AT&T Unix.[2] GNU-based Linux distributions include Bison, a forward-compatible Yacc replacement.[3]

  1. ^ "The A-Z of Programming Languages: YACC". Computerworld. Archived from the original on 31 January 2013. Retrieved 30 November 2012.
  2. ^ Levine, John (1992). Lex & yacc. Sebastopol, CA: O'Reilly & Associates. p. xx. ISBN 1-56592-000-7.
  3. ^ Levine, John (2009). Flex & bison. Sebastopol, Calif: O'Reilly Media. p. xv. ISBN 978-0-596-15597-1.

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