Index: gs2-extensions/parallel-building/trunk/src/perllib/mgppbuilder.pm
===================================================================
--- gs2-extensions/parallel-building/trunk/src/perllib/mgppbuilder.pm	(revision 27230)
+++ 	(revision )
@@ -1,859 +1,0 @@
-###########################################################################
-#
-# mgppbuilder.pm -- MGBuilder object
-# A component of the Greenstone digital library software
-# from the New Zealand Digital Library Project at the 
-# University of Waikato, New Zealand.
-#
-# Copyright (C) 1999 New Zealand Digital Library Project
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-###########################################################################
-
-package mgppbuilder;
-
-use basebuilder;
-use colcfg;
-use plugin;
-use strict; no strict 'refs';
-use util;
-
-
-sub BEGIN {
-    @mgppbuilder::ISA = ('basebuilder');
-}
-
-
-
-our %level_map = ('document'=>'Doc',
-	      'section'=>'Sec',
-	      'paragraph'=>'Para',
-	      'Doc'=>'_textdocument_',
-	      'Sec'=>'_textsection_',
-	      'Para'=>'_textparagraph_');
-
-our %wanted_index_files = ('td'=>1,
-		       't'=>1,
-		       'tl'=>1,
-		       'ti'=>1,
-		       'idb'=>1,
-		       'ib1'=>1,
-		       'ib2'=>1,
-		       'ib3'=>1,
-		       'ib4'=>1,
-		       'ib5'=>1,
-		       'ib6'=>1,
-		       'ib7'=>1,
-		       'i'=>1,
-		       'il'=>1,
-		       'w'=>1,
-		       'wa'=>1);
-
-
-my $maxdocsize = $basebuilder::maxdocsize;
-
-sub new {
-    my $class = shift(@_);
-
-    my $self = new basebuilder (@_);
-    $self = bless $self, $class;
-
-    #$self->{'indexfieldmap'} = \%static_indexfield_map;
-
-    # get the levels (Section, Paragraph) for indexing and compression
-    $self->{'levels'} = {};
-    $self->{'levelorder'} = ();
-    if (defined $self->{'collect_cfg'}->{'levels'}) {
-        foreach my $level ( @{$self->{'collect_cfg'}->{'levels'}} ){
-	    $level =~ tr/A-Z/a-z/;
-            $self->{'levels'}->{$level} = 1;
-	    push (@{$self->{'levelorder'}}, $level);
-        }
-    } else { # default to document
-	$self->{'levels'}->{'document'} = 1;
-	push (@{$self->{'levelorder'}}, 'document');
-    }
-    
-    $self->{'buildtype'} = "mgpp";
-
-    return $self;
-}
-
-sub generate_index_list {
-    my $self  = shift (@_);
-    
-    # sort out the indexes
-    #indexes are specified with spaces, but we put them into one index
-    my $indexes = $self->{'collect_cfg'}->{'indexes'};
-    if (defined $indexes) {
-	$self->{'collect_cfg'}->{'indexes'} = [];
-
-	# remove any ex. from index spec but iff it is the only namespace in the metadata name
-	my @indexes_copy = @$indexes; # make a copy, as 'map' changes entry in array
-	#map { $_ =~ s/(^|,|;)ex\.([^.]+)$/$1$2/; } @indexes_copy; # No. Will replace metanames like flex.Image with fl.Image
-	map { $_ =~ s/(,|;)/$1 /g; } @indexes_copy; # introduce a space after every separator
-	map { $_ =~ s/(^| )ex\.([^.,:]+)(,|;|$)/$1$2$3/g; } @indexes_copy; # replace all <ex.> at start of metanames or <, ex.> when in a comma separated list
-	map { $_ =~ s/(,|:) /$1/g; } @indexes_copy; # remove space introduced after every separator
-	my $single_index = join(';', @indexes_copy).";";
-
-	push (@{$self->{'collect_cfg'}->{'indexes'}}, $single_index);
-    }
-}
-
-sub generate_index_options {
-    my $self = shift (@_);
-
-    $self->SUPER::generate_index_options();
-
-    $self->{'casefold'} = 0;
-    $self->{'stem'} = 0;
-    $self->{'accentfold'} = 0; 
-    
-    if (!defined($self->{'collect_cfg'}->{'indexoptions'})) {
-	# just use default options
-	$self->{'casefold'} = 1;
-	$self->{'stem'} = 1;
-	$self->{'accentfold'} = 1;
-    } else {
-	foreach my $option (@{$self->{'collect_cfg'}->{'indexoptions'}}) {
-	    if ($option =~ /stem/) {
-		$self->{'stem'} = 1;
-	    } elsif ($option =~ /casefold/) {
-		$self->{'casefold'} = 1;
-	    } elsif ($option =~ /accentfold/) {
-		$self->{'accentfold'} = 1;
-	    }
-	}
-    }
-    
-    # now we record this for the build cfg
-    $self->{'stemindexes'} = 0;
-    if ($self->{'casefold'}) {
-	$self->{'stemindexes'} += 1;
-    }
-    if ($self->{'stem'}) {
-	$self->{'stemindexes'} += 2;
-    }
-    if ($self->{'accentfold'}) {
-	$self->{'stemindexes'} += 4;
-    }
-    
-}
-
-sub default_buildproc {
-    my $self  = shift (@_);
-
-    return "mgppbuildproc";
-}
-
-sub compress_text {
-
-    my $self = shift (@_);
-
-    # we don't do anything if we don't want compressed text
-    return if $self->{'no_text'};
-    
-    my ($textindex) = @_;
-
-    my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
-    my $exe = &util::get_os_exe ();
-    my $mgpp_passes_exe = &util::filename_cat($exedir, "mgpp_passes$exe");
-    my $mgpp_compression_dict_exe = &util::filename_cat($exedir, "mgpp_compression_dict$exe");
-    my $outhandle = $self->{'outhandle'};
-
-    my $maxnumeric = $self->{'maxnumeric'};
-    
-    &util::mk_all_dir (&util::filename_cat($self->{'build_dir'}, "text"));
-
-    my $collect_tail = &util::get_dirsep_tail($self->{'collection'});
-    my $basefilename = &util::filename_cat("text",$collect_tail);
-    my $fulltextprefix = &util::filename_cat ($self->{'build_dir'}, $basefilename);
-    
-    my $osextra = "";
-    if ($ENV{'GSDLOS'} =~ /^windows$/i) {
-	$fulltextprefix =~ s@/@\\@g;
-    } 
-    else {
-	$osextra = " -d /";
-    }
-
-
-    # define the section names and possibly the doc name for mgpasses
-    # the compressor doesn't need to know about paragraphs - never want to 
-    # retrieve them
-    
-    # always use Doc and Sec levels
-    my $mgpp_passes_sections = "-J ". $level_map{"document"} ." -K " . $level_map{"section"} ." ";
-
-    print $outhandle "\n*** creating the compressed text\n" if ($self->{'verbosity'} >= 1);
-    print STDERR "<Stage name='CompressText'>\n" if $self->{'gli'};
-
-    # collect the statistics for the text
-    # -b $maxdocsize sets the maximum document size to be 12 meg
-    print $outhandle "\n    collecting text statistics (mgpp_passes -T1)\n"  if ($self->{'verbosity'} >= 1);
-    print STDERR "<Phase name='CollectTextStats'/>\n" if $self->{'gli'};
-
-    my ($handle);
-    if ($self->{'debug'}) {
-	$handle = *STDOUT;
-    }
-    else {
-	if (!-e "$mgpp_passes_exe" || 
-	    !open($handle, "| mgpp_passes$exe  -M $maxnumeric $mgpp_passes_sections -f \"$fulltextprefix\" -T1 $osextra")) {
-	    print STDERR "<FatalError name='NoRunMGPasses'>\n</Stage>\n" if $self->{'gli'};
-	    die "mgppbuilder::compress_text - couldn't run $mgpp_passes_exe\n";
-	}
-    }
-    
-    my $db_level = "section";
-
-    $self->{'buildproc'}->set_output_handle ($handle);
-    $self->{'buildproc'}->set_mode ('text');
-    $self->{'buildproc'}->set_index ($textindex);
-    $self->{'buildproc'}->set_indexing_text (0);
-    #$self->{'buildproc'}->set_indexfieldmap ($self->{'indexfieldmap'});
-    $self->{'buildproc'}->set_levels ($self->{'levels'});                      
-    $self->{'buildproc'}->set_db_level ($db_level);                       
-    $self->{'buildproc'}->reset();
-    &plugin::begin($self->{'pluginfo'}, $self->{'source_dir'}, 
-		   $self->{'buildproc'}, $self->{'maxdocs'});
-    &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'}, 
-		   "", {}, {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
-    &plugin::end($self->{'pluginfo'});
-
-    close ($handle) unless $self->{'debug'};
-
-    $self->print_stats();
-
-    # create the compression dictionary
-    # the compression dictionary is built by assuming the stats are from a seed
-    # dictionary (-S), if a novel word is encountered it is spelled out (-H),
-    # and the resulting dictionary must be less than 5 meg with the most 
-    # frequent words being put into the dictionary first (-2 -k 5120)
-    # note: these options are left over from mg version
-    if (!$self->{'debug'}) {
-	print $outhandle "\n    creating the compression dictionary\n"  if ($self->{'verbosity'} >= 1);
-	print STDERR "<Phase name='CreatingCompress'/>\n" if $self->{'gli'};
-	if (!-e "$mgpp_compression_dict_exe") {
-	    print STDERR "<FatalError name='NoRunMGCompress'/>\n</Stage>\n" if $self->{'gli'};
-	    die "mgppbuilder::compress_text - couldn't run $mgpp_compression_dict_exe\n";
-	}
-	system ("mgpp_compression_dict$exe -f \"$fulltextprefix\" -S -H -2 -k 5120 $osextra");
-
-	if (!$self->{'debug'}) {
-	    if (!-e "$mgpp_passes_exe" || 
-		!open ($handle, "| mgpp_passes$exe  -M $maxnumeric $mgpp_passes_sections -f \"$fulltextprefix\" -T2 $osextra")) {
-		print STDERR "<FatalError name='NoRunMGPasses'/>\n</Stage>\n" if $self->{'gli'};
-		die "mgppbuilder::compress_text - couldn't run $mgpp_passes_exe\n";
-	    }
-	}
-    }
-    else {
-	print STDERR "<Phase name='SkipCreatingComp'/>\n" if $self->{'gli'};
-    }
-
-    $self->{'buildproc'}->set_output_handle ($handle);
-    $self->{'buildproc'}->reset();
-
-    # compress the text
-    print $outhandle "\n    compressing the text (mgpp_passes -T2)\n"  if ($self->{'verbosity'} >= 1);
-    print STDERR "<Phase name='CompressingText'/>\n" if $self->{'gli'};
-
-    &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'}, 
-		   "", {}, {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
-    close ($handle) unless $self->{'debug'};
-
-    $self->print_stats();
-    print STDERR "</Stage>\n" if $self->{'gli'};
-}
-
-
-sub post_build_indexes {
-    my $self = shift(@_);
-
-    #define the final field lists
-    $self->make_final_field_list();
-}    
-
-# creates directory names for each of the index descriptions
-sub create_index_mapping {
-    my $self = shift (@_);
-    my ($indexes) = @_;
-
-    my %mapping = ();
-
-    return \%mapping if !(scalar @$indexes);
-
-    $mapping{'indexmaporder'} = [];
-    $mapping{'subcollectionmaporder'} = [];
-    $mapping{'languagemaporder'} = [];
-    
-    # dirnames is used to check for collisions. Start this off
-    # with the manditory directory names
-    my %dirnames = ('text'=>'text',
-		    'extra'=>'extra');
-    my %pnames = ('index' => {}, 'subcollection' => {}, 'languages' => {});
-
-    foreach my $index (@$indexes) {
-	my ($fields, $subcollection, $languages) = split (":", $index);
-	
-	# we only ever have one index, and its called 'idx'
-	my $pindex = 'idx';
-	
-	# next comes a processed version of the subcollection if there is one.
-	my $psub = $self->process_field ($subcollection);
-	$psub = lc ($psub);
-
-	# next comes a processed version of the language if there is one.
-	my $plang = $self->process_field ($languages);
-	$plang = lc ($plang);
-
-	my $dirname = $pindex . $psub . $plang;
-
-	# check to be sure all index names are unique
-	while (defined ($dirnames{$dirname})) {
-	    $dirname = $self->make_unique (\%pnames, $index, \$pindex, \$psub, \$plang);
-	}
-
-	$mapping{$index} = $dirname;
-
-	# store the mapping orders as well as the maps
-	# also put index, subcollection and language fields into the mapping thing - 
-	# (the full index name (eg text:subcol:lang) is not used on
-	# the query page) -these are used for collectionmeta later on
-	if (!defined $mapping{'indexmap'}{"$fields"}) {
-	    $mapping{'indexmap'}{"$fields"} = $pindex;
-	    push (@{$mapping{'indexmaporder'}}, "$fields");
-	    if (!defined $mapping{"$fields"}) {
-		$mapping{"$fields"} = $pindex;
-	    }	
-	}
-	if ($psub =~ /\w/ && !defined ($mapping{'subcollectionmap'}{$subcollection})) {
-	    $mapping{'subcollectionmap'}{$subcollection} = $psub;
-	    push (@{$mapping{'subcollectionmaporder'}}, $subcollection);
-	    $mapping{$subcollection} = $psub;
-	}
-	if ($plang =~ /\w/ && !defined ($mapping{'languagemap'}{$languages})) {
-	    $mapping{'languagemap'}{$languages} = $plang;
-	    push (@{$mapping{'languagemaporder'}}, $languages);
-	    $mapping{$languages} = $plang;
-	}
-	$dirnames{$dirname} = $index;
-	$pnames{'index'}->{$pindex} = "$fields";
-	$pnames{'subcollection'}->{$psub} = $subcollection;
-	$pnames{'languages'}->{$plang} = $languages;
-    }
-
-    return \%mapping;
-}
-
-sub make_unique {
-    my $self = shift (@_);
-    my ($namehash, $index, $indexref, $subref, $langref) = @_;
-    my ($fields, $subcollection, $languages) = split (":", $index);
-
-    if ($namehash->{'index'}->{$$indexref} ne "$fields") {
-	$self->get_next_version ($indexref);
-    } elsif ($namehash->{'subcollection'}->{$$subref} ne $subcollection) {
-	$self->get_next_version ($subref);
-    } elsif ($namehash->{'languages'}->{$$langref} ne $languages) {
-	$self->get_next_version ($langref);
-    }
-    return "$$indexref$$subref$$langref";
-}	
-
-
-sub build_index {
-    my $self = shift (@_);
-    my ($index) = @_;
-    my $outhandle = $self->{'outhandle'};
-
-    # get the full index directory path and make sure it exists
-    my $indexdir = $self->{'index_mapping'}->{$index};
-    &util::mk_all_dir (&util::filename_cat($self->{'build_dir'}, $indexdir));
-
-    my $collect_tail = &util::get_dirsep_tail($self->{'collection'});
-    my $fullindexprefix = &util::filename_cat ($self->{'build_dir'}, 
-					       $indexdir, 
-					       $collect_tail);
-    my $fulltextprefix = &util::filename_cat ($self->{'build_dir'}, "text", 
-					       $collect_tail);
-
-    # get any os specific stuff
-    my $exedir = "$ENV{'GSDLHOME'}/bin/$ENV{'GSDLOS'}";
-
-    my $exe = &util::get_os_exe ();
-    my $mgpp_passes_exe = &util::filename_cat($exedir, "mgpp_passes$exe");
-
-    # define the section names for mgpasses
-    my $mgpp_passes_sections = "-J ". $level_map{"document"} ." -K " . $level_map{"section"} ." ";
-    if ($self->{'levels'}->{'paragraph'}) {
-	$mgpp_passes_sections .= "-K " . $level_map{'paragraph'}. " ";
-    }
-
-    my $mgpp_perf_hash_build_exe = 
-	&util::filename_cat($exedir, "mgpp_perf_hash_build$exe");
-    my $mgpp_weights_build_exe = 
-	&util::filename_cat ($exedir, "mgpp_weights_build$exe");
-    my $mgpp_invf_dict_exe = 
-	&util::filename_cat ($exedir, "mgpp_invf_dict$exe");
-    my $mgpp_stem_idx_exe =
-	&util::filename_cat ($exedir, "mgpp_stem_idx$exe");
-
-    my $maxnumeric = $self->{'maxnumeric'};
-
-    my $osextra = "";
-    if ($ENV{'GSDLOS'} =~ /^windows$/i) {
-	$fullindexprefix =~ s@/@\\@g;
-    } else {
-	$osextra = " -d /";
-	if ($outhandle ne "STDERR") {
-	    # so mgpp_passes doesn't print to stderr if we redirect output
-	    $osextra .= " 2>/dev/null";
-	}
-    }
- 
-    # get the index expression if this index belongs
-    # to a subcollection
-    my $indexexparr = [];
-    my $langarr = [];
-    # there may be subcollection info, and language info. 
-    my ($fields, $subcollection, $language) = split (":", $index);
-    my @subcollections = ();
-    @subcollections = split /,/, $subcollection if (defined $subcollection);
-
-    foreach $subcollection (@subcollections) {
-	if (defined ($self->{'collect_cfg'}->{'subcollection'}->{$subcollection})) {
-	    push (@$indexexparr, $self->{'collect_cfg'}->{'subcollection'}->{$subcollection});
-	} 
-    }
-    
-    # add expressions for languages if this index belongs to
-    # a language subcollection - only put languages expressions for the 
-    # ones we want in the index
-    
-    my @languages = ();
-    my $languagemetadata = "Language";
-    if (defined ($self->{'collect_cfg'}->{'languagemetadata'})) {
-	$languagemetadata = $self->{'collect_cfg'}->{'languagemetadata'};
-    }
-    @languages = split /,/, $language if (defined $language);
-    foreach my $language (@languages) {
-	my $not=0;
-	if ($language =~ s/^\!//) {
-	    $not = 1;
-	}
-	if($not) {
-	    push (@$langarr, "!$language");
-	} else {
-	    push (@$langarr, "$language");
-	}
-    }
-
-    # Build index dictionary. Uses verbatim stem method
-    print $outhandle "\n    creating index dictionary (mgpp_passes -I1)\n"  if ($self->{'verbosity'} >= 1);
-    print STDERR "<Phase name='CreatingIndexDic'/>\n" if $self->{'gli'};
-    my ($handle);
-    if ($self->{'debug'}) {
-	$handle = *STDOUT;
-    }
-    else {
-	if (!-e "$mgpp_passes_exe" || 
-	    !open($handle, "| mgpp_passes$exe -M $maxnumeric $mgpp_passes_sections -f \"$fullindexprefix\" -I1 $osextra")) {
-	    print STDERR "<FatalError name='NoRunMGPasses'/>\n</Stage>\n" if $self->{'gli'};
-	    die "mgppbuilder::build_index - couldn't run $mgpp_passes_exe\n";
-	}
-    }
-	    
-    # db_level is always section
-    my $db_level = "section";
-
-    # set up the document processr
-    $self->{'buildproc'}->set_output_handle ($handle);
-    $self->{'buildproc'}->set_mode ('text');
-    $self->{'buildproc'}->set_index ($index, $indexexparr);
-    $self->{'buildproc'}->set_index_languages ($languagemetadata, $langarr) if (defined $language);
-    $self->{'buildproc'}->set_indexing_text (1);
-    #$self->{'buildproc'}->set_indexfieldmap ($self->{'indexfieldmap'});
-    $self->{'buildproc'}->set_levels ($self->{'levels'}); 
-    $self->{'buildproc'}->set_db_level ($db_level);   
-    
-    $self->{'buildproc'}->reset();
-
-    &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'}, 
-		   "", {}, {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
-    close ($handle) unless $self->{'debug'};
-
-    $self->print_stats();
-
-    # now we check to see if the required files have been produced - if not we quit building this index so the whole process doesn't crap out.
-    # we check on the .id file - index dictionary
-    my $dict_file = "$fullindexprefix.id";
-    if (!-e $dict_file) {
-	print $outhandle "mgppbuilder::build_index - Couldn't create index $index\n";
-	print STDERR "<Warning name='NoIndex'/>\n</Stage>\n" if $self->{'gli'};
-	$self->{'notbuilt'}->{$index}=1;
-	return;
-    }
-
-    if (!$self->{'debug'}) {
-	# create the perfect hash function
-	if (!-e "$mgpp_perf_hash_build_exe") {
-	    print STDERR "<FatalError name='NoRunMGHash'/>\n</Stage>\n" if $self->{'gli'};
-	    die "mgppbuilder::build_index - couldn't run $mgpp_perf_hash_build_exe\n";
-	}
-	system ("mgpp_perf_hash_build$exe -f \"$fullindexprefix\" $osextra");
-
-	if (!-e "$mgpp_passes_exe" || 
-	    !open ($handle, "| mgpp_passes$exe -M $maxnumeric $mgpp_passes_sections -f \"$fullindexprefix\" -I2 $osextra")) {
-	    print STDERR "<FatalError name='NoRunMGPasses'/>\n</Stage>\n" if $self->{'gli'};
-	    die "mgppbuilder::build_index - couldn't run $mgpp_passes_exe\n";
-	}
-    }
-    
-    # invert the text
-    print $outhandle "\n    inverting the text (mgpp_passes -I2)\n"  if ($self->{'verbosity'} >= 1);
-    print STDERR "<Phase name='InvertingText'/>\n" if $self->{'gli'};
-
-    $self->{'buildproc'}->set_output_handle ($handle);
-    $self->{'buildproc'}->reset();
-
-    &plugin::read ($self->{'pluginfo'}, $self->{'source_dir'}, 
-		   "", {}, {}, $self->{'buildproc'}, $self->{'maxdocs'}, 0, $self->{'gli'});
-
-    $self->print_stats ();
-    
-    if (!$self->{'debug'}) {
-
-	close ($handle);
-	
-	# create the weights file
-	print $outhandle "\n    create the weights file\n"  if ($self->{'verbosity'} >= 1);
-	print STDERR "<Phase name='CreateTheWeights'/>\n" if $self->{'gli'};
-	if (!-e "$mgpp_weights_build_exe") {
-	    print STDERR "<FatalError name='NoRunMGWeights'/>\n</Stage>\n" if $self->{'gli'};
-	    die "mgppbuilder::build_index - couldn't run $mgpp_weights_build_exe\n";
-	}
-	system ("mgpp_weights_build$exe -f \"$fullindexprefix\" $osextra");
-
-	# create 'on-disk' stemmed dictionary
-	print $outhandle "\n    creating 'on-disk' stemmed dictionary\n"  if ($self->{'verbosity'} >= 1);
-	if (!-e "$mgpp_invf_dict_exe") {
-	    print STDERR "<FatalError name='NoRunMGInvf'/>\n</Stage>\n" if $self->{'gli'};
-	    die "mgppbuilder::build_index - couldn't run $mgpp_invf_dict_exe\n";
-	}
-	system ("mgpp_invf_dict$exe -f \"$fullindexprefix\" $osextra" );
-
-
-	# creates stem index files for the various stemming methods
-	print $outhandle "\n    creating stem indexes\n"  if ($self->{'verbosity'} >= 1);
-	print STDERR "<Phase name='CreatingStemIndx'/>\n" if $self->{'gli'};
-	if (!-e "$mgpp_stem_idx_exe") {
-	    print STDERR "<FatalError name='NoRunMGStem'/>\n</Stage>\n" if $self->{'gli'};
-	    die "mgppbuilder::build_index - couldn't run $mgpp_stem_idx_exe\n";
-	}
-	my $accent_folding_enabled = 1;
-	if ($self->{'accentfold'}) {
-	    # the first time we do this, we test for accent folding enabled
-	    if (system ("mgpp_stem_idx$exe -b 4096 -s4 -f \"$fullindexprefix\" $osextra") == 2) {
-		# accent folding has not been enabled in mgpp
-		$accent_folding_enabled = 0;
-		$self->{'stemindexes'} -= 4;
-	    }
-	}
-	if ($self->{'casefold'}) {
-	    system ("mgpp_stem_idx$exe -b 4096 -s1 -f \"$fullindexprefix\" $osextra");
-	    if ($accent_folding_enabled && $self->{'accentfold'}) {
-		system ("mgpp_stem_idx$exe -b 4096 -s5 -f \"$fullindexprefix\" $osextra");
-	    }
-	}
-	if ($self->{'stem'}) {
-	    system ("mgpp_stem_idx$exe -b 4096 -s2 -f \"$fullindexprefix\" $osextra");
-	    if ($accent_folding_enabled && $self->{'accentfold'}) {
-		system ("mgpp_stem_idx$exe -b 4096 -s6 -f \"$fullindexprefix\" $osextra");
-	    }
-	}
-	if ($self->{'casefold'} && $self->{'stem'}) {
-	    system ("mgpp_stem_idx$exe -b 4096 -s3 -f \"$fullindexprefix\" $osextra");
-	    if ($accent_folding_enabled && $self->{'accentfold'}) {
-		system ("mgpp_stem_idx$exe -b 4096 -s7 -f \"$fullindexprefix\" $osextra");
-	    }
-	}
-
-	# remove unwanted files
-	my $tmpdir = &util::filename_cat ($self->{'build_dir'}, $indexdir);
-	opendir (DIR, $tmpdir) || die
-	    "mgppbuilder::build_index - couldn't read directory $tmpdir\n";
-	foreach my $file (readdir(DIR)) {
-	    next if $file =~ /^\./;
-	    my ($suffix) = $file =~ /\.([^\.]+)$/;
-	    if (defined $suffix && !defined $wanted_index_files{$suffix}) {
-		# delete it!
-		print $outhandle "deleting $file\n" if $self->{'verbosity'} > 2;
-		#&util::rm (&util::filename_cat ($tmpdir, $file));
-	    }
-	}
-	closedir (DIR);
-    }
-    print STDERR "</Stage>\n" if $self->{'gli'};
-}   
-
-
-sub get_collection_meta_indexes
-{
-    my $self = shift(@_);
-    my $collection_infodb = shift(@_);
-
-    # define the indexed field mapping if not already done so 
-    # (i.e. if infodb called separately from build_index)
-    if (!defined $self->{'build_cfg'}) {
-	$self->read_final_field_list();
-    }
-
-    # first do the collection meta stuff - everything without a dot
-    my $collmetadefined = 0;
-    my $metadata_entry;
-    if (defined $self->{'collect_cfg'}->{'collectionmeta'}) {
-	$collmetadefined = 1;
-    }
-
-    #add the index field macros to [collection]
-    # eg <TI>Title
-    #    <SU>Subject
-    # these now come from collection meta. if that is not defined, uses the metadata name
-    my $collmeta = "";
-    if (defined $self->{'build_cfg'}->{'indexfields'}) {
-	foreach my $longfield (@{$self->{'build_cfg'}->{'indexfields'}}){
-	    my $shortfield = $self->{'buildproc'}->{'indexfieldmap'}->{$longfield};
-	    next if $shortfield eq 1;
-	    
-	    # we need to check if some coll meta has been defined - don't output 
-	    # any that have
-	    $collmeta = ".$longfield";
-	    if (!$collmetadefined || !defined $self->{'collect_cfg'}->{'collectionmeta'}->{$collmeta}) {
-		if ($longfield eq "allfields") {
-		    $collection_infodb->{$shortfield} = [ "_query:textallfields_" ];
-		} elsif ($longfield eq "text") {
-		    $collection_infodb->{$shortfield} = [ "_query:texttextonly_" ];
-		} else {
-		    $collection_infodb->{$shortfield} = [ $longfield ];
-		}
-	    }
-	}
-    }
-
-    # now add the level names
-    my $level_entry = "";
-    foreach my $level (@{$self->{'collect_cfg'}->{'levels'}}) {
-	$collmeta = ".$level"; # based on the original specification
-	$level =~ tr/A-Z/a-z/; # make it lower case
-	my $levelid = $level_map{$level}; # find the actual value we used in the index
-	if (!$collmetadefined || !defined $self->{'collect_cfg'}->{'collectionmeta'}->{$collmeta}) {
-	    # use the default macro
-	    $collection_infodb->{$levelid} = [ $level_map{$levelid} ];
-	}
-    }
-    
-    # now add subcoll meta
-    my $subcoll_entry = "";
-    my $shortname = "";
-    my $one_entry = "";
-    foreach my $subcoll (@{$self->{'index_mapping'}->{'subcollectionmaporder'}}) {
-	$shortname = $self->{'index_mapping'}->{$subcoll};
-	if (!$collmetadefined || !defined $self->{'collect_cfg'}->{'collectionmeta'}->{".$subcoll"}) {
-	    $collection_infodb->{$shortname} = [ $subcoll ];
-	}
-    }
-
-    # now add language meta
-    my $lang_entry = "";
-    foreach my $lang (@{$self->{'index_mapping'}->{'languagemaporder'}}) {
-	$shortname = $self->{'index_mapping'}->{$lang};
-	if (!$collmetadefined || !defined $self->{'collect_cfg'}->{'collectionmeta'}->{".$lang"}) {
-	    $collection_infodb->{$shortname} = [ $lang ];
-	}
-    }
-}
-
-
-# default is to output the metadata sets (prefixes) used in collection
-sub output_collection_meta
-{
-    my $self = shift(@_);
-    my $infodb_handle = shift(@_);
-
-    my %collection_infodb = ();
-    $self->get_collection_meta_sets(\%collection_infodb);
-    $self->get_collection_meta_indexes(\%collection_infodb);
-    &dbutil::write_infodb_entry($self->{'infodbtype'}, $infodb_handle, "collection", \%collection_infodb);
-}
-
-
-# at the end of building, we have an indexfieldmap with all the mappings,
-# plus some extras, and indexmap with any indexes in it that weren't
-# specified in the index definition.  We want to make an ordered list of
-# fields that are indexed, and a list of mappings that are used. This will
-# be used for the build.cfg file, and for collection meta definition we
-# store these in a build.cfg bit
-sub make_final_field_list {
-    my $self = shift (@_);
-    
-    $self->{'build_cfg'} = {};
-    
-    # store the indexfieldmap information
-    my @indexfieldmap = ();
-    my @indexfields = ();
-    my $specifiedfields = {};
-    my @specifiedfieldorder = ();
-
-    # go through the index definition and add each thing to a map, so we
-    # can easily check if it is already specified - when doing the
-    # metadata, we print out all the individual fields, but some may
-    # already be specified in the index definition, so we dont want to add
-    # those again.
-
-    my $field;
-    foreach $field (@{$self->{'collect_cfg'}->{'indexes'}}) {
-	# remove subcoll stuff
-	my $parts = $field;
-	$parts =~ s/:.*$//;
-	# *************
-	my @fs = split(';', $parts);
-	foreach my $f(@fs) {
-	    if (!defined $specifiedfields->{$f}) {
-		$specifiedfields->{$f}=1;
-		push (@specifiedfieldorder, "$f");
-	    }
-	}
-    }
-    
-    #add all fields bit 
-    my $ifm = $self->{'buildproc'}->{'indexfieldmap'};
-    
-    foreach $field (@specifiedfieldorder) {
-	if ($field eq "metadata") {
-	    foreach my $newfield (keys %{$self->{'buildproc'}->{'indexfields'}}) {
-		if (!defined $specifiedfields->{$newfield}) {
-		    push (@indexfieldmap, "$newfield\-\>$self->{'buildproc'}->{'indexfieldmap'}->{$newfield}");
-		    push (@indexfields, "$newfield");
-		}
-	    }
-
-	} elsif ($field eq 'text') {
-	    push (@indexfieldmap, "text\-\>TX");
-	    push (@indexfields, "text");
-	} elsif ($field eq 'allfields') {
-	    push (@indexfieldmap, "allfields\-\>ZZ");
-	    push (@indexfields, "allfields");
-	} else {
-	    # we only add in the ones that have been processed
-	    if (defined $ifm->{$field}) {
-		push (@indexfieldmap, "$field\-\>$ifm->{$field}");
-		push (@indexfields, "$field");
-	    }
-	}
-    }
-
-    if (scalar @indexfieldmap) {
-	$self->{'build_cfg'}->{'indexfieldmap'} = \@indexfieldmap;
-    }
-
-    if (scalar @indexfields) {
-	$self->{'build_cfg'}->{'indexfields'} = \@indexfields;
-    }
-}
-
-
-# recreate the field list from the build.cfg file, look first in building,
-# then in index to find it. if there is no build.cfg, we can't do the field
-# list (there is unlikely to be any index anyway.)
-sub read_final_field_list {
-    my $self = shift (@_);
-    $self->{'build_cfg'} = {};
-    my @indexfieldmap = ();
-    my @indexfields = ();
-    my @indexmap = ();
-
-    # we read the stuff in from the build.cfg file - if its there
-    my $buildcfg = $self->read_build_cfg();
-    return unless defined $buildcfg;
-
-    my $field;
-    if (defined $buildcfg->{'indexfields'}) {
-	foreach $field (@{$buildcfg->{'indexfields'}}) {
-	    push (@indexfields, "$field");
-	}
-    }
-
-    if (defined $buildcfg->{'indexfieldmap'}) {
-	foreach $field (@{$buildcfg->{'indexfieldmap'}}) {
-	    push (@indexfieldmap, "$field");
-	    my ($f, $v) = $field =~ /^(.*)\-\>(.*)$/;
-	    $self->{'buildproc'}->{'indexfieldmap'}->{$f} = $v;
-	}
-    }	    
-
-    if (defined $buildcfg->{'indexmap'}) {
-	foreach $field (@{$buildcfg->{'indexmap'}}) {
-	    push (@indexmap, "$field");
-	}
-    }	    
-
-    $self->{'build_cfg'}->{'indexfieldmap'} = \@indexfieldmap;
-    $self->{'build_cfg'}->{'indexfields'} = \@indexfields;
-    $self->{'build_cfg'}->{'indexmap'} = \@indexmap;
-}
-
-
-sub build_cfg_extra {
-    my $self = shift (@_);
-    my ($build_cfg) = @_;
-
-    $build_cfg->{'numsections'} = $self->{'buildproc'}->get_num_sections();
-    
-    # store the level info
-    my @indexlevels = ();
-    my @levelmap = ();
-    foreach my $l (@{$self->{'levelorder'}}) {
-	push (@indexlevels, $level_map{$l});
-	push (@levelmap, "$l\-\>$level_map{$l}");
-    }
-    $build_cfg->{'indexlevels'} = \@indexlevels;
-    $build_cfg->{'levelmap'} = \@levelmap;
-
-    # text level (and database level) is always section
-    $build_cfg->{'textlevel'} = $level_map{'section'};
-   
-}
-
-# The three main 'modes' in MGPP builds are completely independent
-sub prepare_build_recipe
-{
-  my ($self, $collection, $recipe) = @_;
-  my $outhandle = $self->{'outhandle'};
-  my $verbosity = $self->{'verbosity'};
-  # 1. Compressing the text
-  push(@{$recipe}, {'command'=>'buildcol.pl -keepold -verbosity ' . $verbosity . ' -mode compress_text ' . $collection});
-  # 2. Build the indexes
-  push(@{$recipe}, {'command'=>'buildcol.pl -keepold -verbosity ' . $verbosity . ' -mode build_index ' . $collection});
-  # 3. Info database building
-  push(@{$recipe}, {'command'=>'buildcol.pl -keepold -verbosity ' . $verbosity . ' -mode infodb ' . $collection});
-  # Complete!
-}
-
-1;
-
-
