--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dummy_foundation/lib/Parse/Yapp/Options.pm	Thu May 28 10:10:03 2009 +0100
@@ -0,0 +1,186 @@
+#
+# Module Parse::Yapp::Options
+#
+# (c) Copyright 1999-2001 Francois Desarmenien, all rights reserved.
+# (see the pod text in Parse::Yapp module for use and distribution rights)
+#
+package Parse::Yapp::Options;
+
+use strict;
+use Carp;
+
+############################################################################
+#Definitions of options
+#
+# %known_options    allowed options
+#
+# %default_options  default
+#
+# %actions          sub refs to execute if option is set with ($self,$value)
+#                   as parameters
+############################################################################
+#
+#A value of '' means any value can do
+#
+my(%known_options)= (
+    language    =>  {
+        perl    => "Ouput parser for Perl language",
+# for future use...
+#       'c++'   =>  "Output parser for C++ language",
+#       c       =>  "Output parser for C language"
+    },
+    linenumbers =>  {
+        0       =>  "Don't embbed line numbers in parser",
+        1       =>  "Embbed source line numbers in parser"
+    },
+    inputfile   =>  {
+        ''      =>  "Input file name: will automagically fills input"
+    },
+    classname   =>  {
+        ''      =>  "Class name of parser object (Perl and C++)"
+    },
+    standalone  =>  {
+        0       =>  "Don't create a standalone parser (Perl and C++)",
+        1       =>  "Create a standalone parser"
+    },
+    input       =>  {
+        ''      =>  "Input text of grammar"
+    },
+    template    => {
+        ''      =>  "Template text for generating grammar file"
+    },
+);
+
+my(%default_options)= (
+    language => 'perl',
+    linenumbers => 1,
+    inputfile => undef,
+    classname   => 'Parser',
+    standalone => 0,
+    input => undef,
+    template => undef,
+    shebang => undef,
+);
+
+my(%actions)= (
+    inputfile => \&__LoadFile
+);
+
+#############################################################################
+#
+# Actions
+#
+# These are NOT a method, although they look like...
+#
+# They are super-private routines (that's why I prepend __ to their names)
+#
+#############################################################################
+sub __LoadFile {
+    my($self,$filename)=@_;
+
+        open(IN,"<$filename")
+    or  croak "Cannot open input file '$filename' for reading";
+    $self->{OPTIONS}{input}=join('',<IN>);
+    close(IN);
+}
+
+#############################################################################
+#
+# Private methods
+#
+#############################################################################
+
+sub _SetOption {
+    my($self)=shift;
+    my($key,$value)=@_;
+
+    $key=lc($key);
+
+        @_ == 2
+    or  croak "Invalid number of arguments";
+
+        exists($known_options{$key})
+    or  croak "Unknown option: '$key'";
+
+    if(exists($known_options{$key}{lc($value)})) {
+        $value=lc($value);
+    }
+    elsif(not exists($known_options{$key}{''})) {
+        croak "Invalid value '$value' for option '$key'";
+    }
+
+        exists($actions{$key})
+    and &{$actions{$key}}($self,$value);
+
+    $self->{OPTIONS}{$key}=$value;
+}
+
+sub _GetOption {
+    my($self)=shift;
+    my($key)=map { lc($_) } @_;
+
+        @_ == 1
+    or  croak "Invalid number of arguments";
+
+        exists($known_options{$key})
+    or  croak "Unknown option: '$key'";
+
+    $self->{OPTIONS}{$key};
+}
+
+#############################################################################
+#
+# Public methods
+#
+#############################################################################
+
+#
+# Constructor
+#
+sub new {
+    my($class)=shift;
+    my($self)={ OPTIONS => { %default_options } };
+
+        ref($class)
+    and $class=ref($class);
+    
+    bless($self,$class);
+
+    $self->Options(@_);
+
+    $self;
+}
+
+#
+# Specify one or more options to set
+#
+sub Options {
+    my($self)=shift;
+    my($key,$value);
+
+        @_ % 2 == 0
+    or  croak "Invalid number of arguments";
+
+    while(($key,$value)=splice(@_,0,2)) {
+        $self->_SetOption($key,$value);
+    }
+}
+
+#
+# Set (2 parameters) or Get (1 parameter) values for one option
+#
+sub Option {
+    my($self)=shift;
+    my($key,$value)=@_;
+
+        @_ == 1
+    and return $self->_GetOption($key);
+
+        @_ == 2
+    and return $self->_SetOption($key,$value);
+
+    croak "Invalid number of arguments";
+
+}
+
+1;