--- trunk/lib/WebPAC/Parser.pm	2006/09/24 17:49:05	687
+++ trunk/lib/WebPAC/Parser.pm	2006/09/24 21:13:36	691
@@ -3,13 +3,13 @@
 use warnings;
 use strict;
 
-use base qw/WebPAC::Common WebPAC::Normalize/;
 
 use PPI;
 use PPI::Dumper;
 use Data::Dump qw/dump/;
 use File::Slurp;
 
+use base qw/WebPAC::Common WebPAC::Normalize/;
 
 =head1 NAME
 
@@ -17,11 +17,11 @@
 
 =head1 VERSION
 
-Version 0.01
+Version 0.03
 
 =cut
 
-our $VERSION = '0.01';
+our $VERSION = '0.03';
 
 =head1 SYNOPSIS
 
@@ -51,37 +51,85 @@
 
 	$log->logdie("can't iterate_inputs over this config object") unless ($self->{config}->can('iterate_inputs'));
 
-	my $source;
+	$self->read_sources;
 
 	$self->{config}->iterate_inputs( sub {
-		my $input = shift;
+		my ($input, $database) = @_;
+		return unless $self->valid_database_input($database, $input->{name});
+		$self->parse_lookups($database,$input->{name});
+	} );
+
+	$self ? return $self : return undef;
+}
+
+=head2 read_sources
+
+  my $source_files = $parser->read_sources;
+
+Called by L</new>.
+
+=cut
+
+sub read_sources {
+	my $self = shift;
+
+	my $log = $self->_get_logger();
+
+	my $nr = 0;
+
+	$self->{config}->iterate_inputs( sub {
+		my ($input, $database) = @_;
+
 		my $path = $input->{normalize}->{path} || return;
 		my $full = $self->{base_path} ? $self->{base_path} . '/' . $path : $path;
+
 		$log->logdie("normalization input $full doesn't exist") unless (-e $full);
+
 		my $s = read_file( $full ) || $log->logdie("can't read $full: $!");
-		$log->debug("adding $path to parser [",length($s)," bytes]");
-		$source .= $s;
-	} );
 
-	$log->debug("collected ", length($source), " bytes of source");
+		my $input_name = $input->{name} || $log->logdie("can't deduce name of input: ", dump( $input ));
 
-	$self->{source} = $source;
+		$log->debug("$database/$input_name: adding $path");
 
-	$self ? return $self : return undef;
+		$self->{valid_inputs}->{$database}->{$input_name} = {
+			source => $s,
+			path => $full,
+			usage => 0,
+		} unless defined($self->{valid_inputs}->{$database}->{$input_name});
+
+		$self->{valid_inputs}->{$database}->{$input_name}->{usage}++;
+
+		$nr++;
+	} );
+
+	$log->debug("found $nr source files");
+
+	return $nr;
 }
 
-=head2 parse
+=head2 parse_lookup
+
+  $parser->parse_lookups($database,$input);
 
 =cut
 
-sub parse {
+sub parse_lookups {
 	my $self = shift;
+	my ($database, $input) = @_;
 
 	my $log = $self->_get_logger();
 
-	$log->logdie('no source found in object') unless ($self->{source});
+	$log->logdie("invalid database $database" ) unless $self->valid_database( $database );
+	$log->logdie("invalid input $input of database $database", ) unless $self->valid_database_input( $database, $input );
+
+	my $source = $self->{valid_inputs}->{$database}->{$input}->{source};
+	my $path = $self->{valid_inputs}->{$database}->{$input}->{path};
+
+	$log->logdie("no source found for database $database input $input path $path") unless ($source);
 
-	my $Document = PPI::Document->new( \$self->{source} ) || $log->logdie("can't parse source:\n", $self->{source});
+	$log->info("parsing lookups for $database/$input in $path");
+
+	my $Document = PPI::Document->new( \$source ) || $log->logdie("can't parse source:\n", $self->{source});
 
 	$Document->prune('PPI::Token::Whitespace');
 	#$Document->prune('PPI::Token::Operator');
@@ -89,6 +137,15 @@
 	# Find all the named subroutines
 
 	my $eval_create;
+	$self->{_lookup_errors} = ();
+
+	sub _lookup_error {
+		my $self = shift;
+		my $msg = shift;
+		$self->_get_logger->logconfess("error without message?") unless ($msg);
+		push @{ $self->{_lookup_errors} }, $msg;
+		return '';
+	}
 
 	$Document->find( sub {
 			my ($Document,$Element) = @_;
@@ -150,7 +207,9 @@
 
 			$log->debug("create: $create");
 
-			$create =~ s/\s+/ /gs;
+			return $self->_lookup_error("invalid database $e[3] in $path" ) unless $self->valid_database( $e[3] );
+			return $self->_lookup_error("invalid input $e[5] of database $e[3] in $path", ) unless $self->valid_database_input( $e[3], $e[5] );
+
 			$eval_create->{ $e[3] }->{ $e[5] } .= $create;
 
 			if ($#e < 10) {
@@ -175,9 +234,42 @@
 		$Dumper->print;
 	}
 
+	$log->error("Parser errors: ", join("\n",@{ $self->{_lookup_errors} }) ) if ($self->{_lookup_errors});
+
 	return 1;
 }
 
+=head2 valid_database
+
+  my $ok = $parse->valid_database('key');
+
+=cut
+
+sub valid_database {
+	my $self = shift;
+
+	my $database = shift || return;
+	$database =~ s/['"]//g;
+
+	return defined($self->{valid_inputs}->{$database});
+}
+
+=head2 valid_database_input
+
+  my $ok = $parse->valid_database('database_key','input_name');
+
+=cut
+
+sub valid_database_input {
+	my $self = shift;
+
+	my ($database,$input) = @_;
+	$database =~ s/['"]//g;
+	$input =~ s/['"]//g;
+
+	return defined($self->{valid_inputs}->{$database}->{$input});
+}
+
 =head1 AUTHOR
 
 Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >>