yapp - phpMan

YAPP(1)               User Contributed Perl Documentation              YAPP(1)



NAME
       yapp - A perl frontend to the Parse::Yapp module

SYNOPSYS
       yapp [options] grammar[.yp]

       yapp -V

       yapp -h

DESCRIPTION
       yapp is a frontend to the Parse::Yapp module, which lets you compile Parse::Yapp
       grammar input files into Perl LALR(1) OO parser modules.

OPTIONS
       Options, as of today, are all optionals :-)

       -v  Creates a file grammar.output describing your parser. It will show you a sum-
           mary of conflicts, rules, the DFA (Deterministic Finite Automaton) states and
           overall usage of the parser.

       -s  Create a standalone module in which the driver is included.  Note that if you
           have more than one parser module called from a program, to have it standalone,
           you need this option only for one of your parser module.

       -n  Disable source file line numbering embedded in your parser module.  I don’t
           know why one should need it, but it’s there.

       -m module
           Gives your parser module the package name (or name space or module name or
           class name or whatever-you-call-it) of module.  It defaults to grammar

       -o outfile
           The compiled output file will be named outfile for your parser module.  It
           defaults to grammar.pm or, if you specified the option -m A::Module::Name (see
           below), to Name.pm.

       -t filename
           The -t filename option allows you to specify a file which should be used as
           template for generating the parser output.  The default is to use the internal
           template defined in Parse::Yapp::Output.pm.  For how to write your own template
           and which substitutions are available, have a look to the module
           Parse::Yapp::Output.pm : it should be obvious.

       -b shebang
           If you work on systems that understand so called shebangs, and your generated
           parser is directly an executable script, you can specifie one with the -b
           option, ie:

               yapp -b ’/usr/local/bin/perl -w’ -o myscript.pl myscript.yp

           This will output a file called myscript.pl whose very first line is:

               #!/usr/local/bin/perl -w

           The argument is mandatory, but if you specify an empty string, the value of
           $Config{perlpath} will be used instead.

       grammar
           The input grammar file. If no suffix is given, and the file does not exists, an
           attempt to open the file with a suffix of  .yp is tried before exiting.

       -V  Display current version of Parse::Yapp and gracefully exits.

       -h  Display the usage screen.

BUGS
       None known now :-)

AUTHOR
       Francois Desarmenien <francois AT fdesar.net>

COPYRIGHT
       (c) Copyright 1998-1999 Francois Desarmenien, all rights reserved.  See
       Parse::Yapp(3) for legal use and distribution rights

SEE ALSO
       Parse::Yapp(3) Perl(1) yacc(1) bison(1)



perl v5.8.6                       2001-02-11                           YAPP(1)

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