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williamc |
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#
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# Query.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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# -----------
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# Hold information request data
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#
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# Interface
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# ---------
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# new() : A new Query object
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# querylist() : return ordered list of query names
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# title() : return/set the title text
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# intro() : return/set the intro text
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# querytype(name) : return/set the input type of the named query
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# querymessage(name) : return/set the message text associated with the named
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# query
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# queryprompt(name) : return/set the prompt string for the query
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# queryoptions(name) : return/set the query option list for the named query
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# currentvalue(name) : return the current value of the query list exapnded
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# in the context of the other query values - affected
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# by lodgevalue.
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# getparam(name) : return the absolute value of the param (non expanded) - not
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# affected by lodgevalue until OK called.
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# setparam(name,value) : set the value of a given query to list
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# expand(@string) : expand given strings
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# lodgevalue(name,val) : set a value of a given query variable to the list
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# current value will be expanded in terms of these
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# OK() : set all query values to the values of the lodged
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# variables
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# cancel() : clear the values of any lodged variables
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# setparam(name,value) : hard set
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# params : return list of all parameters
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package ActiveDoc::Query;
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require 5.004;
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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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return $self;
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}
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sub title {
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my $self=shift;
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@_?$self->{title}=shift
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:((defined $self->{title})?$self->{title}:"");
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}
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sub intro {
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my $self=shift;
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@_?$self->{intro}=shift
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:((defined $self->{intro})?$self->{intro}:"");
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}
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sub querytype {
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my $self=shift;
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my $name=shift;
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@_?$self->{querytype}{$name}=shift
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:$self->{querytype}{$name};
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}
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sub querymessage {
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my $self=shift;
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my $name=shift;
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@_?($self->{querymessage}{$name}=shift)
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:($self->expand($self->{querymessage}{$name}));
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}
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sub queryprompt {
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my $self=shift;
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my $name=shift;
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my $rv=undef;
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if ( @_ ) {
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$self->{queryprompt}{$name}=shift;
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$rv=$self->{queryprompt}{$name};
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} elsif ( defined $self->{queryprompt}{$name} ) {
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$rv=$self->expand($self->{queryprompt}{$name});
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}
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return $rv;
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}
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sub queryoptions {
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my $self=shift;
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my $name=shift;
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my @out=();
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if ( @_ ) {
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push @{$self->{queryoptions}{$name}},@_;
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}
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foreach $option ( @{$self->{queryoptions}{$name}} ) {
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push @out, $self->expand($option);
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}
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return @out;
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}
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sub expand {
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my $self=shift;
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my $string=shift;
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$string=~s{
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\$\((\w+)\)
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}{
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if (defined $self->{lodgehash}{$1}) {
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$self->expand($self->{lodgehash}{$1});
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} else {
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"\$$1";
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}
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}egx;
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$string=~s{
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\$(\w+)
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}{
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if (defined $self->{lodgehash}{$1}) {
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$self->expand($self->{lodgehash}{$1});
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} else {
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"\$$1";
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}
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}egx;
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return $string;
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}
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sub currentvalue {
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my $self=shift;
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my $name=shift;
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$self->expand(
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((defined $self->{lodgehash}{$name})?$self->{lodgehash}{$name}:""));
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}
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sub getparam {
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my $self=shift;
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my $name=shift;
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return $self->{params}{$name};
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}
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sub lodgevalue {
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my $self=shift;
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my $name=shift;
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$self->{lodgehash}{$name}=shift;
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}
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sub OK {
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my $self=shift;
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foreach $name ( $self->querylist() ) {
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$self->setparam($name, $self->{lodgehash}{$name});
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}
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}
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sub querylist {
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my $self=shift;
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return ( keys %{$self->{querytype}});
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}
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sub cancel {
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my $self=shift;
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foreach $name ( keys %{$self->{lodgehash}} ) {
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$self->{lodgehash}{$name}=$self->{params}{$name};
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}
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}
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sub setparam {
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my $self=shift;
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my $name=shift;
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my $value=shift;
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print "Setting $name = $value\n";
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$self->{params}{$name}=$value;
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$self->lodgevalue($name,$value);
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}
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sub params {
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my $self=shift;
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return ( keys %{$self->{params}} );
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}
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