BISON(1)                     General Commands Manual                    BISON(1)

       bison - GNU Project parser generator (yacc replacement)

       bison [ -b file-prefix ] [ --file-prefix=file-prefix ] [ -d ] [
       --defines=defines-file ] [ -g ] [ --graph=graph-file ] [ -k ] [
       --token-table ] [ -l ] [ --no-lines ] [ -n ] [ --no-parser ] [ -o outfile
       ] [ --output-file=outfile ] [ -p prefix ] [ --name-prefix=prefix ] [ -t ]
       [ --debug ] [ -v ] [ --verbose ] [ -V ] [ --version ] [ -y ] [ --yacc ] [
       -h ] [ --help ] [ --fixed-output-files ] file
       yacc [ similar options and operands ]

       Bison is a parser generator in the style of yacc(1).  It should be
       upwardly compatible with input files designed for yacc.

       Input files should follow the yacc convention of ending in .y.  Unlike
       yacc, the generated files do not have fixed names, but instead use the
       prefix of the input file.  Moreover, if you need to put C++ code in the
       input file, you can end his name by a C++-like extension (.ypp or .y++),
       then bison will follow your extension to name the output file (.cpp or
       .c++).  For instance, a grammar description file named parse.yxx would
       produce the generated parser in a file named, instead of
       yacc's or old Bison version's

       This description of the options that can be given to bison is adapted
       from the node Invocation in the bison.texinfo manual, which should be
       taken as authoritative.

       Bison supports both traditional single-letter options and mnemonic long
       option names.  Long option names are indicated with -- instead of -.
       Abbreviations for option names are allowed as long as they are unique.
       When a long option takes an argument, like --file-prefix, connect the
       option name and the argument with =.

       -b file-prefix

              Specify a prefix to use for all bison output file names.  The
              names are chosen as if the input file were named file-prefix.c.

              Write an extra output file containing macro definitions for the
              token type names defined in the grammar and the semantic value
              type YYSTYPE, as well as a few extern variable declarations.

              If the parser output file is named name.c then this file is named

              This output file is essential if you wish to put the definition of
              yylex in a separate source file, because yylex needs to be able to
              refer to token type codes and the variable yylval.

              The behavior of --defines is the same than -d option.  The only
              difference is that it has an optional argument which is the name
              of the output filename.

              Output a VCG definition of the LALR(1) grammar automaton computed
              by Bison.  If the grammar file is foo.y , the VCG output file will
              be foo.vcg.

              The behavior of --graph is the same than -g option.  The only
              difference is that it has an optional argument which is the name
              of the output graph filename.


              This switch causes the output to include a list of
              token names in order by their token numbers; this is defined in
              the array yytname.  Also generated are #defines for YYNTOKENS,
              YYNNTS, YYNRULES, and YYNSTATES.


              Don't put any #line preprocessor commands in the parser file.
              Ordinarily bison puts them in the parser file so that the C
              compiler and debuggers will associate errors with your source
              file, the grammar file.  This option causes them to associate
              errors with the parser file, treating it an independent source
              file in its own right.


              Do not generate the parser code into the output; generate only
              declarations.  The generated file will have only
              constant declarations.  In addition, a name.act file is generated
              containing a switch statement body containing all the translated

       -o outfile

              Specify the name outfile for the parser file.

              The other output files' names are constructed from outfile as
              described under the -v and -d switches.

       -p prefix

              Rename the external symbols used in the parser so that they start
              with prefix instead of yy.  The precise list of symbols renamed is
              yyparse, yylex, yyerror, yylval, yychar, and yydebug.

              For example, if you use -p c, the names become cparse, clex, and
              so on.


              In the parser file, define the macro YYDEBUG to 1 if it is not
              already defined, so that the debugging facilities are compiled.


              Write an extra output file containing verbose descriptions of the
              parser states and what is done for each type of look-ahead token
              in that state.

              This file also describes all the conflicts, both those resolved by
              operator precedence and the unresolved ones.

              The file's name is made by removing .tab.c or .c from the parser
              output file name, and adding .output instead.

              Therefore, if the input file is foo.y, then the parser file is
              called by default.  As a consequence, the verbose output
              file is called foo.output.


              Print the version number of bison and exit.


       --help Print a summary of the options to bison and exit.



              Equivalent to -o; the parser output file is called
    , and the other outputs are called y.output and
              The purpose of this switch is to imitate yacc's output file name
              conventions.  Thus, the following shell script can substitute for
              yacc and is often installed as yacc:

              bison -y "$@"

       The Bison Reference Manual, included as the file bison.texinfo in the
       bison source distribution.

       Self explanatory.

                                      local                             BISON(1)