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OpenSolaris 2009.06 - man page for bison (opensolaris section 1)

BISON(1)										 BISON(1)

NAME
       bison - GNU Project parser generator (yacc replacement)

SYNOPSIS
       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 ]

DESCRIPTION
       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  gener-
       ated  parser  in  a  file named parse.tab.cxx, instead of yacc's y.tab.c or old Bison ver-
       sion's parse.tab.c.

       This description of the options that can be given to bison is adapted from the node  Invo-
       cation 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 =.

   OPTIONS
       -b file-prefix
       --file-prefix=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.

       -d
	      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 name.h.

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

       --defines=defines-file
	      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.

       -g
	      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.

       --graph=graph-file
	      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.

       -k
       --token-table
	      This switch causes the name.tab.c 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.

       -l
       --no-lines
	      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  asso-
	      ciate  errors  with  the parser file, treating it an independent source file in its
	      own right.

       -n
       --no-parser
	      Do not generate the parser code into the output; generate only  declarations.   The
	      generated  name.tab.c  file  will  have only constant declarations.  In addition, a
	      name.act file is generated containing a switch statement body  containing  all  the
	      translated actions.

       -o outfile
       --output-file=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
       --name-prefix=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.

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

       -v
       --verbose
	      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  prece-
	      dence 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 foo.tab.c  by
	      default.	As a consequence, the verbose output file is called foo.output.

       -V
       --version
	      Print the version number of bison and exit.

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

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

	      bison -y "$@"

SEE ALSO
       yacc(1)
       The Bison Reference Manual, included as the file bison.texinfo in the bison source distri-
       bution.

DIAGNOSTICS
       Self explanatory.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +--------------------+-----------------+
       |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
       +--------------------+-----------------+
       |Availability	    | SUNWbison       |
       +--------------------+-----------------+
       |Interface Stability | Volatile	      |
       +--------------------+-----------------+
NOTES
       Source for bison is available on http://opensolaris.org.

					      local					 BISON(1)


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