NAME

       Yacc - an LALR(1) parser generator for Java

SYNOPSIS

       byaccj  [  -dlrtvJ  ]  [  -b  prefix  ]  [-Jclass=  classname ] [-Jpackage= package_name ]
       [-Jextends= extends_name ] [-Jimplements= implements_name ] [-Jsemantic=  semantic_type  ]
       [-Jnorun] [-Jnocontruct] [-Jstack= NNN ] [-Jnodebug] [-Jfinal] [-Jthrows= exception_list ]
       filename

DESCRIPTION

       Yacc reads the grammar specification in the file filename and generates  an  LR(1)  parser
       for  it.   The  parsers  consist  of  a set of LALR(1) parsing tables and a driver routine
       written in the C programming language.  Yacc normally writes  the  parse  tables  and  the
       driver routine to the file y.tab.c.

       The following options are available:

              -b prefix
                     The  -b  option changes the prefix prepended to the output file names to the
                     string denoted by prefix.  The default prefix is the character y.

              -d     The -d option causes the header file y.tab.h to be written.

              -l     If the -l option is not specified, yacc will insert The  generated  code  to
                     the  user's  original  code.   If  the -l option is specified, yacc will not
                     insert the .TP -r The -r option causes yacc to produce  separate  files  for
                     code  and  tables.   The code file is named y.code.c, and the tables file is
                     named y.tab.c.

              -t     The -t option changes the preprocessor directives generated by yacc so  that
                     debugging statements will be incorporated in the compiled code.

              -v     The -v option causes a human-readable description of the generated parser to
                     be written to the file y.output.

              -J     The -J option switches from C/C++ to Java output. Not necessary if other  -J
                     flags are used.

              -Jclass=<classname>
                     Changes the name of the Java class (and .java file) to classname

              -Jpackage=<packagename>
                      Changes  the package in which the parser resides from the default <nothing>
                     to packagename

              -Jextends=<extend_name>
                      Changes the  class  the  parser  extends  from  the  default  <nothing>  to
                     extend_name

              -Jimplements=<implement_name>
                      Changes  the  interface the parser implements from the default <nothing> to
                     implement_name

              -Jsemantic=<semantic_type>
                       Changes  the  semantic  (value  of   the   rules'   variables)   type   to
                     semantic_type.  No extra class will be generated.

              -Jnorun
                     The -Jnorun option informs Byacc to not generate a run() method. Useful when
                     working with threads.

              -Jnoconstruct
                     The -Jnoconstruct option informs Byacc to not generate constructors.  Useful
                     when extending classes.

              -Jstack=<NNN>
                      Changes the stack size from default 500 to NNN

              -Jnodebug
                     The -Jnodebug option informs Byacc to omit debugging code for further better
                     performance.

              -Jfinal
                     The -Jfinal option makes generated class final.

              -Jthrows=<exception_list>
                      Informs Byacc to declare thrown exceptions for yyparse() method.

       If the environment variable TMPDIR is set, the string denoted by TMPDIR will  be  used  as
       the name of the directory where the temporary files are created.

FILES

       y.code.c
       y.tab.c
       y.tab.h
       y.output
       /tmp/yacc.aXXXXXX
       /tmp/yacc.tXXXXXX
       /tmp/yacc.uXXXXXX

DIAGNOSTICS

       If  there  are  rules  that  are  never  reduced,  the number of such rules is reported on
       standard error.  If there are any LALR(1) conflicts, the number of conflicts  is  reported
       on standard error.