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GCC started out using Bison, but switched to a hand-written recursive-descent parser for C++ in 2004 (version 3.4), [13] and for C and Objective-C in 2006 (version 4.1) [14] The Go programming language (GC) used Bison, but switched to a hand-written scanner and parser in version 1.5. [15] LilyPond requires Bison to generate its parser. [16 ...
It is a computer program that generates lexical analyzers (also known as "scanners" or "lexers"). [ 3 ] [ 4 ] It is frequently used as the lex implementation together with Berkeley Yacc parser generator on BSD -derived operating systems (as both lex and yacc are part of POSIX ), [ 5 ] [ 6 ] [ 7 ] or together with GNU bison (a version of yacc ...
Other examples of parser generators in the yacc vein are ANTLR, Coco/R, [22] CUP, [citation needed] GNU Bison, Eli, [23] FSL, [citation needed] SableCC, SID (Syntax Improving Device), [24] and JavaCC. While useful, pure parser generators only address the parsing part of the problem of building a compiler.
GNU Bison – parser generator intended to replace yacc; GNU build system (autotools) – contains Autoconf, Automake, Autoheader, and Libtool; GNU Compiler Collection – optimizing compiler for many programming languages, including C, C++, Fortran, Ada, and Java; GNU Debugger (gdb) – an advanced debugger; GNU m4 – macro processor
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]
Lex is a computer program that generates lexical analyzers ("scanners" or "lexers"). [1] [2] It is commonly used with the yacc parser generator and is the standard lexical analyzer generator on many Unix and Unix-like systems. An equivalent tool is specified as part of the POSIX standard. [3]
GNU Bison – Yacc-compatible parser generator program GNU C Library – GNU implementation of the standard C library Pages displaying short descriptions of redirect targets GNU Compiler Collection – Free and open-source compiler for various programming languages
The parser and lexical scanner use Bison and Flex. The GPL licensed compiler and LGPL licensed run-time libraries are written in C and use the C ABI for external program linkage. Build packaging uses the GNU Build System. Standard tests with make check use Autoconf, ANSI85 testsuite run by make test use Perl scripts.