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#
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# CommandLineInterface.pm
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#
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# Originally Written by Christopher Williams
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#
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# Description
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# Do all the setting up required for the InputQuery based on an input hash
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# --- defaults taken from activedoc configuration setup
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#
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# Interface
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# ---------
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# new(UserInterface) : A new CommandLineInterface object
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# define userinterface for any CL querys
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# parseoptions(optionhashref, @args) : parse the options, setting the UserQuery
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# appropriately as indicated by optionhash
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# The option hash ref should have the
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# format as given in example below
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# $ohr={
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# '-I'=> [ qw(dir >>) ],
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# '-g'=> [ qw(debug true) ] }
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# ( >> means take next argument as value)
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package ActiveDoc::CommandLineInterface;
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use ActiveDoc::UserQuery;
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require 5.001;
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sub new {
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my $class=shift;
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$self={};
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bless $self, $class;
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$self->init(@_);
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return $self;
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}
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# --------------- Support Routines --------------------
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sub init {
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my $self=shift;
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my $UI=shift;
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$self->{UI}=$UI;
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$self->{InputQuery}=ActiveDoc::UserQuery->new($self->{UI});
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$self->{errormessg}="Error : ";
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}
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sub error {
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my $self=shift;
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my $string=shift;
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die $self->{errormessg}.$string."\n";
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}
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# --------------- Interface routines --------------------
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sub getDOChandler {
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my $self=shift;
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$self->{dochandler}=ActiveDoc::DOChandler->new($self->{InputQuery});
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return $self->{dochandler};
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}
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sub parseoptions {
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my $self=shift;
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my $optionhashref=shift;
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my @args=@_;
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my $option;
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$option=shift @args;
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while ( defined $option ) {
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# deal with options
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if ( $option=~/^\-/ ) {
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if ( ! exists $$optionhashref{$option} ) {
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$self->error("Unknown Option $option");
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}
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else {
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# take next word as argument -- indicate by >
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if ( $$optionhashref{$option}[1]=~/^\>\>/ ) {
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$self->{InputQuery}->setparam($$optionhashref{$option}[0],
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(shift @args));
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}
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else { # simply set value as in hashref
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$self->{InputQuery}->setparam($$optionhashref{$option}[0],
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$$optionhashref{$option}[1]);
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}
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}
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}
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else { # deal with commands
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unshift @args, $option;
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last;
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}
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$option=shift @args;
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} # end while
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}
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