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.

4.3 Berkeley Distribution                         July 15, 1990                                          YACC(1)