--- trunk/parse_format.pm	2003/01/16 17:35:54	10
+++ trunk/parse_format.pm	2003/11/23 15:42:16	170
@@ -1,45 +1,245 @@
 #-------------------------------------------------------------
 #
-# parse_format('format',$isis_row);
+# parse_format(...)
 #
 
-use isis_sf;
-
 sub parse_format {
+	my $type = shift || die "parset_format must be called with type!";
+	my $format = shift || die "parse_format must be called with format!";
+	my $row = shift || die "parse_format must be called with row!";
+	my $i = shift || 0;	# isis repeatable number
+	my $codepage = shift || die "parse_format must be called with codepage!";
+	if ($type eq "isis") {
+		return parse_iso_format($format,$row,$i,$codepage,'isis_sf');
+	} elsif ($type eq "excel") {
+		return parse_excel_format($format,$row,$i,$codepage);
+	} elsif ($type eq "marc") {
+		return parse_iso_format($format,$row,$i,$codepage,'marc_sf');
+	} elsif ($type eq "feed") {
+		return parse_feed_format($format,$row,$i,$codepage);
+	}
+}
+
+#-------------------------------------------------------------
+
+sub parse_iso_format {
+
 	my $format = shift;
 	my $row = shift;
+	my $i = shift;
+	my $codepage = shift;
+
+	my $func = shift || die "need to know which sub-field function to use";
+
+	require $func.".pm";
+
+	my $out;
+	my $out_swish;
+
+	my $display;
+	my $swish;
+
+	sub cnv_cp {
+		my $codepage = shift;
+		my $tmp = shift || return;
+		if ($codepage) {
+			$tmp = $codepage->convert($tmp) || print STDERR "iso: '$tmp' can't convert\n";
+		}
+		return $tmp;
+	}
+
+	# if format doesn't exits, store it in cache
+	if (! defined($cache->{format}->{$format})) {
+#		print STDERR "parsing format for '$format'\n";
+		my @fmt;
+
+		my $f = $format;
+
+		if ($f =~ s/^([^\d]+)//) {
+			if ($f) {	# there is more to parse
+				push @fmt,$1;
+			} else {
+				@fmt = ('',$1,undef,'');
+#print STDERR "just one field: $1\n";
+			}
+		} else {
+			push @fmt,'';
+		}
+
+		while ($f) {
+#	print STDERR "\n#### $f";
+			# this is EBSCO special to support numeric subfield in
+			# form of 856#3
+			if ($f =~ s/^(\d\d\d)#*(\w?)//) {
+				push @fmt,$1;
+				if ($2) {
+					push @fmt,$2;
+				} else {
+					push @fmt,undef;
+				}
+			# this might be our local scpeciality -- fields 10 and 11
+			# (as opposed to 010 and 011) so they are strictly listed
+			# here
+			} elsif ($f =~ s/^(1[01])//) {
+				push @fmt,$1;
+				push @fmt,undef;
+			} elsif ($f =~ s/^mfn//i) {
+				push @fmt,'mfn';
+				push @fmt,'';
+			} elsif ($f =~ s/^([^\d]+)(\d{0,3})/$2/) {
+				push @fmt,$1;
+			} elsif ($f =~ s/^([^\d]+\d{0,2})//) {
+				push @fmt,$1;
+			} elsif ($f =~ s/^(\d{1,2})//) {
+				push @fmt,$1;
+			} else {
+				print STDERR "unparsed format: $f\n";
+				$f = "";
+			}
+		}
+		push @fmt,'' if ($#fmt % 3 != 0);	# add empty suffix
+		$cache->{format}->{$format} = \@fmt;
+		
+#		print STDERR "storing format for '$format': [",join("|",@fmt),"]\n";
+#		print STDERR "storing format for '$format':",Dumper(@fmt),"\n";
+#		print STDERR Dumper($cache->{format}->{$format});
+	}
+
+	# now produce actual record
+	my $tmp = $cache->{format}->{$format} || die "no format cache for '$format'";
+	my @fmt = @{$tmp};
+#	print STDERR "using format for '$format':",Dumper(@fmt),"\n";
+#	print STDERR "tmp ",Dumper($tmp);
+#	print STDERR "cache: ",Dumper($cache->{format}->{$format});
+
+	# prefix
+	my $prefix = shift @fmt;
+	my $sufix;
+	while($#fmt > 1) {
+		my $f = shift @fmt || die "BUG: field name can't be empty!";
+		my $sf = shift @fmt;
+
+		if ($f eq 'mfn' && $i == 0) {
+			$display .= $sufix if ($display);
+			$display .= $row->{mfn};
+		} else {
+			my $val = &$func($row,$f,$sf,$i);
+			if ($val) {
+#				print STDERR "val: $val\n";
+				my $tmp = cnv_cp($codepage,$val);
+				if ($display) {
+					$display .= $sufix.$tmp;
+				} else {
+					$display = $tmp;
+				}
+				$swish .= $tmp." ";
+			}
+		}
+		$sufix = shift @fmt;
+	}
+	$display = $prefix.$display.$sufix if ($display);
+	print STDERR "format left unused: [",join("|",@fmt),"]\n" if (@fmt);
+
+#	print STDERR "display: $display swish: $swish\n";
+
+	return ($swish,$display);
+}
+
+#-------------------------------------------------------------
+
+sub parse_excel_format {
+	my $format = shift;
+	my $row = shift;
+	my $i = shift;
+	my $codepage = shift;
+
+	return if ($i > 0);	# Excel doesn't support repeatable fields
+
+	my $out;
+	my $out_swish;
+
+	my $prefix = "";
+	if ($format =~ s/^([^A-Z\|]{1,3})//) {
+		$prefix = $1;
+	}
+
+	my $display;
+	my $swish;
+
+	while ($format && length($format) > 0) {
+#print STDERR "\n#### $format #";
+		if ($format =~ s/^\|([A-Z]{1,2})\|//) {
+#print STDERR "--$1-> $format -[",length($format),"] ";
+			if ($row->{$1}) {
+				my $tmp = $row->{$1};
+				if ($codepage) {
+					$tmp = $codepage->convert($tmp) || warn "excel: $1 '$tmp' can't convert";
+				}
+				$display .= $prefix . $tmp;
+				$swish .= $tmp." ";
+#print STDERR " == $tmp";
+			}
+			$prefix = "";
+		} elsif ($format =~ s/^([^A-Z\|]+)(\|[A-Z]{1,2}\|)/$2/) {
+			$prefix .= $1 if ($display);
+		} else {
+			print STDERR "unparsed format: $format\n";
+			$prefix .= $format;
+			$format = "";
+		}
+#print STDERR " display: $display swish: $swish [format: $format]";
+	}
+	# add suffix
+	$display .= $prefix if ($display);
+
+	return ($swish,$display);
+}
+
+#-------------------------------------------------------------
+
+sub parse_feed_format {
+	my $format = shift;
+	my $data = shift;
+	my $i = shift;
+	my $codepage = shift;
+
+	# XXX feed doesn't support repeatable fields, but they really
+	# should, This is a bug. It should be fixed!
+	return if ($i > 0);
 
 	my $out;
 	my $out_swish;
 
 	my $prefix = "";
-	if ($format =~ s/^([^\d]+)//) {
-		$prefix = "pre: $1";
+	if ($format =~ s/^([^\d\|]{1,3})//) {
+		$prefix = $1;
 	}
 
 	my $display;
 	my $swish;
 
-	while ($format) {
-#print STDERR "#### $format\n";
-		if ($format =~ s/^(\d\d\d)(\w?)//) {
-			my $isis_tmp = isis_sf($row,$1,$2);
-			if ($isis_tmp) {
-				$display .= $prefix . $isis_tmp;
-				$swish .= $isis_tmp." ";
+	while ($format && length($format) > 0) {
+#print STDERR "\n#### $format #";
+		if ($format =~ s/^\|(\d+)\|//) {
+#print STDERR "--$1-> $format -[",length($format),"] ";
+			if ($data->{$1}) {
+				my $tmp = $data->{$1};
+				if ($codepage) {
+					$tmp = $codepage->convert($tmp) || warn "feed: $1 '$tmp' can't convert\n";
+				}
+				$display .= $prefix . $tmp;
+				$swish .= $tmp." ";
+#print STDERR " == $tmp";
 			}
 			$prefix = "";
-		} elsif ($format =~ s/^([^\d]+)(\d{0,3})/$2/) {
-			$prefix .= $1;
-		} elsif ($format =~ s/^([^\d]+\d{0,2})//) {
-			$prefix .= $1;
-		} elsif ($format =~ s/^(\d{1,2})//) {
-			$prefix .= $1;
+		} elsif ($format =~ s/^([^\d\|]+)(\|\d+\|)/$2/) {
+			$prefix .= $1 if ($display);
 		} else {
 			print STDERR "unparsed format: $format\n";
 			$prefix .= $format;
 			$format = "";
 		}
+#print STDERR " display: $display swish: $swish [format: $format]";
 	}
 	# add suffix
 	$display .= $prefix if ($display);
@@ -48,4 +248,5 @@
 }
 
 #-------------------------------------------------------------
+
 1;