misc/translator/tmpl_process3.pl

   1 #!/usr/bin/perl
   2 # This file is part of Koha
   3 # Parts copyright 2003-2004 Paul Poulain
   4 # Parts copyright 2003-2004 Jerome Vizcaino
   5 # Parts copyright 2004 Ambrose Li
   6
   7 use FindBin;
   8 use lib $FindBin::Bin;
   9
  10 =head1 NAME
  11
  12 tmpl_process3.pl - Alternative version of tmpl_process.pl
  13 using gettext-compatible translation files
  14
  15 =cut
  16
  17 use strict;
  18 #use warnings; FIXME - Bug 2505
  19 use File::Basename;
  20 use Getopt::Long;
  21 use Locale::PO;
  22 use File::Temp qw( :POSIX );
  23 use TmplTokenizer;
  24 use VerboseWarnings qw( :warn :die );
  25
  26 ###############################################################################
  27
  28 use vars qw( @in_dirs @filenames @match @nomatch $str_file $out_dir $quiet );
  29 use vars qw( @excludes $exclude_regex );
  30 use vars qw( $recursive_p );
  31 use vars qw( $pedantic_p );
  32 use vars qw( $href );
  33 use vars qw( $type );   # file extension (DOS form without the dot) to match
  34 use vars qw( $charset_in $charset_out );
  35
  36 ###############################################################################
  37
  38 sub find_translation {
  39     my($s) = @_;
  40     my $key = $s;
  41     if ($s =~ /\S/s) {
  42       $key = TmplTokenizer::string_canon($key);
  43       $key = TmplTokenizer::charset_convert($key, $charset_in, $charset_out);
  44       $key = TmplTokenizer::quote_po($key);
  45     }
  46     if (defined $href->{$key} && !$href->{$key}->fuzzy && length Locale::PO->dequote($href->{$key}->msgstr)){
  47         if ($s =~ /^(\s+)/){
  48             return $1 . Locale::PO->dequote($href->{$key}->msgstr);
  49         }
  50         else {
  51             return Locale::PO->dequote($href->{$key}->msgstr);
  52         }
  53     }
  54     else {
  55         return $s;
  56     }
  57 }
  58
  59 sub text_replace_tag {
  60     my($t, $attr) = @_;
  61     my $it;
  62     my @ttvar;
  63
  64     # value [tag=input], meta
  65     my $tag = ($t =~ /^<(\S+)/s) ? lc($1) : undef;
  66     my $translated_p = 0;
  67     for my $a ('alt', 'content', 'title', 'value', 'label', 'placeholder', 'aria-label') {
  68     if ($attr->{$a}) {
  69         next if $a eq 'label' && $tag ne 'optgroup';
  70         next if $a eq 'content' && $tag ne 'meta';
  71         next if $a eq 'value' && ($tag ne 'input' || (ref $attr->{'type'} && $attr->{'type'}->[1] =~ /^(?:checkbox|hidden|radio)$/)); # FIXME
  72
  73         my($key, $val, $val_orig, $order) = @{$attr->{$a}}; #FIXME
  74         if ($val =~ /\S/s) {
  75             # for selected attributes replace '[%..%]' with '%s' and remember matches
  76             if ( $a =~ /title|value|alt|content|placeholder|aria-label/ ) {
  77                 while ( $val =~ s/(\[\%.*?\%\])/\%s/ ) {
  78                     my $var = $1;
  79                     push @ttvar, $1;
  80                 }
  81             }
  82             # find translation for transformed attributes
  83             my $s = find_translation($val);
  84             # replace '%s' with original content (in order) on translated string, this is fragile!
  85             if ( $a =~ /title|value|alt|content|placeholder|aria-label/ and @ttvar ) {
  86                 while ( @ttvar ) {
  87                     my $var = shift @ttvar;
  88                     $s =~ s/\%s/$var/;
  89                 }
  90             }
  91             if ($attr->{$a}->[1] ne $s) { #FIXME
  92                 $attr->{$a}->[1] = $s; # FIXME
  93                 $attr->{$a}->[2] = ($s =~ /"/s)? "'$s'": "\"$s\""; #FIXME
  94                 $translated_p = 1;
  95             }
  96         }
  97     }
  98     }
  99     if ($translated_p) {
 100      $it = "<$tag"
 101           . join('', map { if ($_ ne '/'){
 102                              sprintf(' %s="%s"', $_, $attr->{$_}->[1]);
 103           }
 104               else {
 105                   sprintf(' %s',$_);
 106                   }
 107
 108               } sort {
 109                   $attr->{$a}->[3] <=> $attr->{$b}->[3] #FIXME
 110                       || $a cmp $b # Sort attributes BZ 22236
 111               } keys %$attr);
 112         $it .= '>';
 113     }
 114     else {
 115         $it = $t;
 116     }
 117     return $it;
 118 }
 119
 120 sub text_replace {
 121     my($h, $output) = @_;
 122     for (;;) {
 123     my $s = TmplTokenizer::next_token($h);
 124     last unless defined $s;
 125     my($kind, $t, $attr) = ($s->type, $s->string, $s->attributes);
 126     if ($kind eq C4::TmplTokenType::TEXT) {
 127         print $output find_translation($t);
 128     } elsif ($kind eq C4::TmplTokenType::TEXT_PARAMETRIZED) {
 129         my $fmt = find_translation($s->form);
 130         print $output TmplTokenizer::parametrize($fmt, 1, $s, sub {
 131         $_ = $_[0];
 132         my($kind, $t, $attr) = ($_->type, $_->string, $_->attributes);
 133         $kind == C4::TmplTokenType::TAG && %$attr?
 134             text_replace_tag($t, $attr): $t });
 135     } elsif ($kind eq C4::TmplTokenType::TAG && %$attr) {
 136         print $output text_replace_tag($t, $attr);
 137     } elsif ($s->has_js_data) {
 138         for my $t (@{$s->js_data}) {
 139         # FIXME for this whole block
 140         if ($t->[0]) {
 141             printf $output "%s%s%s", $t->[2], find_translation($t->[3]),
 142                 $t->[2];
 143         } else {
 144             print $output $t->[1];
 145         }
 146         }
 147     } elsif (defined $t) {
 148         # Quick fix to bug 4472
 149         $t = "<!DOCTYPE stylesheet ["  if $t =~ /DOCTYPE stylesheet/ ;
 150         print $output $t;
 151     }
 152     }
 153 }
 154
 155 sub listfiles {
 156     my($dir, $type, $action) = @_;
 157     my $filenames = join ('|', @filenames); # used to update strings from this file
 158     my $match     = join ('|', @match);     # use only this files
 159     my $nomatch   = join ('|', @nomatch);   # do no use this files
 160     my @it = ();
 161     if (opendir(DIR, $dir)) {
 162         my @dirent = readdir DIR;   # because DIR is shared when recursing
 163         closedir DIR;
 164         for my $dirent (@dirent) {
 165             my $path = "$dir/$dirent";
 166             if ($dirent =~ /^\./ || $dirent eq 'CVS' || $dirent eq 'RCS'
 167             || (defined $exclude_regex && $dirent =~ /^(?:$exclude_regex)$/)) {
 168             ;
 169             } elsif (-f $path) {
 170                 my $basename = fileparse( $path );
 171                 push @it, $path
 172                     if  ( not @filenames or $basename =~ /($filenames)/i )
 173                     and ( not @match     or $basename =~ /($match)/i     ) # files to include
 174                     and ( not @nomatch   or $basename !~ /($nomatch)/i   ) # files not to include
 175                     and (!defined $type || $dirent =~ /\.(?:$type)$/) || $action eq 'install';
 176             } elsif (-d $path && $recursive_p) {
 177                 push @it, listfiles($path, $type, $action);
 178             }
 179         }
 180     } else {
 181         warn_normal("$dir: $!", undef);
 182     }
 183     return @it;
 184 }
 185
 186 ###############################################################################
 187
 188 sub mkdir_recursive {
 189     my($dir) = @_;
 190     local($`, $&, $', $1);
 191     $dir = $` if $dir ne /^\/+$/ && $dir =~ /\/+$/;
 192     my ($prefix, $basename) = ($dir =~ /\/([^\/]+)$/s)? ($`, $1): ('.', $dir);
 193     mkdir_recursive($prefix) if $prefix ne '.' && !-d $prefix;
 194     if (!-d $dir) {
 195     print STDERR "Making directory $dir...\n" unless $quiet;
 196     # creates with rwxrwxr-x permissions
 197     mkdir($dir, 0775) || warn_normal("$dir: $!", undef);
 198     }
 199 }
 200
 201 ###############################################################################
 202
 203 sub usage {
 204     my($exitcode) = @_;
 205     my $h = $exitcode? *STDERR: *STDOUT;
 206     print $h <<EOF;
 207 Usage: $0 create [OPTION]
 208   or:  $0 update [OPTION]
 209   or:  $0 install [OPTION]
 210   or:  $0 --help
 211 Create or update PO files from templates, or install translated templates.
 212
 213   -i, --input=SOURCE          Get or update strings from SOURCE directory(s).
 214                               On create or update can have multiple values.
 215                               On install only one value.
 216   -o, --outputdir=DIRECTORY   Install translation(s) to specified DIRECTORY
 217       --pedantic-warnings     Issue warnings even for detected problems
 218                               which are likely to be harmless
 219   -r, --recursive             SOURCE in the -i option is a directory
 220   -f, --filename=FILE         FILE is a specific filename or part of it.
 221                               If given, only these files will be processed.
 222                               On update only relevant strings will be updated.
 223   -m, --match=FILE            FILE is a specific filename or part of it.
 224                               If given, only these files will be processed.
 225   -n, --nomatch=FILE          FILE is a specific filename or part of it.
 226                               If given, these files will not be processed.
 227   -s, --str-file=FILE         Specify FILE as the translation (po) file
 228                               for input (install) or output (create, update)
 229   -x, --exclude=REGEXP        Exclude dirs matching the given REGEXP
 230       --help                  Display this help and exit
 231   -q, --quiet                 no output to screen (except for errors)
 232
 233 The -o option is ignored for the "create" and "update" actions.
 234 Try `perldoc $0` for perhaps more information.
 235 EOF
 236     exit($exitcode);
 237 }
 238
 239 ###############################################################################
 240
 241 sub usage_error {
 242     for my $msg (split(/\n/, $_[0])) {
 243     print STDERR "$msg\n";
 244     }
 245     print STDERR "Try `$0 --help for more information.\n";
 246     exit(-1);
 247 }
 248
 249 ###############################################################################
 250
 251 GetOptions(
 252     'input|i=s'             => \@in_dirs,
 253     'filename|f=s'          => \@filenames,
 254     'match|m=s'             => \@match,
 255     'nomatch|n=s'           => \@nomatch,
 256     'outputdir|o=s'         => \$out_dir,
 257     'recursive|r'           => \$recursive_p,
 258     'str-file|s=s'          => \$str_file,
 259     'exclude|x=s'           => \@excludes,
 260     'quiet|q'               => \$quiet,
 261     'pedantic-warnings|pedantic'    => sub { $pedantic_p = 1 },
 262     'help'              => \&usage,
 263 ) || usage_error();
 264
 265 VerboseWarnings::set_application_name($0);
 266 VerboseWarnings::set_pedantic_mode($pedantic_p);
 267
 268 # keep the buggy Locale::PO quiet if it says stupid things
 269 $SIG{__WARN__} = sub {
 270     my($s) = @_;
 271     print STDERR $s unless $s =~ /^Strange line in [^:]+: #~/s
 272     };
 273
 274 my $action = shift or usage_error('You must specify an ACTION.');
 275 usage_error('You must at least specify input and string list filenames.')
 276     if !@in_dirs || !defined $str_file;
 277
 278 # Type match defaults to *.tt plus *.inc if not specified
 279 $type = "tt|inc|xsl|xml|def" if !defined($type);
 280
 281 # Check the inputs for being directories
 282 for my $in_dir ( @in_dirs ) {
 283     usage_error("$in_dir: Input must be a directory.\n"
 284         . "(Symbolic links are not supported at the moment)")
 285         unless -d $in_dir;
 286 }
 287
 288 # Generates the global exclude regular expression
 289 $exclude_regex =  '(?:'.join('|', @excludes).')' if @excludes;
 290
 291 my @in_files;
 292 # Generate the list of input files if a directory is specified
 293 # input is a directory, generates list of files to process
 294
 295 for my $fn ( @filenames ) {
 296     die "You cannot specify input files and directories at the same time.\n"
 297         if -d $fn;
 298 }
 299 for my $in_dir ( @in_dirs ) {
 300     $in_dir =~ s/\/$//; # strips the trailing / if any
 301     @in_files = ( @in_files, listfiles($in_dir, $type, $action));
 302 }
 303
 304 # restores the string list from file
 305 $href = Locale::PO->load_file_ashash($str_file, 'utf-8');
 306
 307 # guess the charsets. HTML::Templates defaults to iso-8859-1
 308 if (defined $href) {
 309     die "$str_file: PO file is corrupted, or not a PO file\n" unless defined $href->{'""'};
 310     $charset_out = TmplTokenizer::charset_canon($2) if $href->{'""'}->msgstr =~ /\bcharset=(["']?)([^;\s"'\\]+)\1/;
 311     $charset_in = $charset_out;
 312 #     for my $msgid (keys %$href) {
 313 #   if ($msgid =~ /\bcharset=(["']?)([^;\s"'\\]+)\1/) {
 314 #       my $candidate = TmplTokenizer::charset_canon $2;
 315 #       die "Conflicting charsets in msgid: $charset_in vs $candidate => $msgid\n"
 316 #           if defined $charset_in && $charset_in ne $candidate;
 317 #       $charset_in = $candidate;
 318 #   }
 319 #     }
 320
 321     # BUG6464: check consistency of PO messages
 322     #  - count number of '%s' in msgid and msgstr
 323     for my $msg ( values %$href ) {
 324         my $id_count  = split(/%s/, $msg->{msgid}) - 1;
 325         my $str_count = split(/%s/, $msg->{msgstr}) - 1;
 326         next if $id_count == $str_count ||
 327                 $msg->{msgstr} eq '""' ||
 328                 grep { /fuzzy/ } @{$msg->{_flags}};
 329         warn_normal(
 330             "unconsistent %s count: ($id_count/$str_count):\n" .
 331             "  line:   " . $msg->{loaded_line_number} . "\n" .
 332             "  msgid:  " . $msg->{msgid} . "\n" .
 333             "  msgstr: " . $msg->{msgstr} . "\n", undef);
 334     }
 335 }
 336
 337 # set our charset in to UTF-8
 338 if (!defined $charset_in) {
 339     $charset_in = TmplTokenizer::charset_canon('UTF-8');
 340     warn "Warning: Can't determine original templates' charset, defaulting to $charset_in\n" unless ( $quiet );
 341 }
 342 # set our charset out to UTF-8
 343 if (!defined $charset_out) {
 344     $charset_out = TmplTokenizer::charset_canon('UTF-8');
 345     warn "Warning: Charset Out defaulting to $charset_out\n" unless ( $quiet );
 346 }
 347 my $xgettext = './xgettext.pl'; # actual text extractor script
 348 my $st;
 349
 350 if ($action eq 'create')  {
 351     # updates the list. As the list is empty, every entry will be added
 352     if (!-s $str_file) {
 353     warn "Removing empty file $str_file\n" unless ( $quiet );
 354     unlink $str_file || die "$str_file: $!\n";
 355     }
 356     die "$str_file: Output file already exists\n" if -f $str_file;
 357     my($tmph1, $tmpfile1) = tmpnam();
 358     my($tmph2, $tmpfile2) = tmpnam();
 359     close $tmph2; # We just want a name
 360     # Generate the temporary file that acts as <MODULE>/POTFILES.in
 361     for my $input (@in_files) {
 362     print $tmph1 "$input\n";
 363     }
 364     close $tmph1;
 365     warn "I $charset_in O $charset_out" unless ( $quiet );
 366     # Generate the specified po file ($str_file)
 367     $st = system ($xgettext, '-s', '-f', $tmpfile1, '-o', $tmpfile2,
 368             (defined $charset_in? ('-I', $charset_in): ()),
 369             (defined $charset_out? ('-O', $charset_out): ())
 370     );
 371     # Run msgmerge so that the pot file looks like a real pot file
 372     # We need to help msgmerge a bit by pre-creating a dummy po file that has
 373     # the headers and the "" msgid & msgstr. It will fill in the rest.
 374     if ($st == 0) {
 375     # Merge the temporary "pot file" with the specified po file ($str_file)
 376     # FIXME: msgmerge(1) is a Unix dependency
 377     # FIXME: need to check the return value
 378     unless (-f $str_file) {
 379         open(my $infh, '<', $tmpfile2);
 380         open(my $outfh, '>', $str_file);
 381         while (<$infh>) {
 382         print $outfh $_;
 383         last if /^\n/s;
 384         }
 385         close $infh;
 386         close $outfh;
 387     }
 388     $st = system("msgmerge ".($quiet?'-q':'')." -s $str_file $tmpfile2 -o - | msgattrib --no-obsolete -o $str_file");
 389     } else {
 390     error_normal("Text extraction failed: $xgettext: $!\n", undef);
 391     error_additional("Will not run msgmerge\n", undef);
 392     }
 393     unlink $tmpfile1 || warn_normal("$tmpfile1: unlink failed: $!\n", undef);
 394     unlink $tmpfile2 || warn_normal("$tmpfile2: unlink failed: $!\n", undef);
 395
 396 } elsif ($action eq 'update') {
 397     my($tmph1, $tmpfile1) = tmpnam();
 398     my($tmph2, $tmpfile2) = tmpnam();
 399     close $tmph2; # We just want a name
 400     # Generate the temporary file that acts as <MODULE>/POTFILES.in
 401     for my $input (@in_files) {
 402     print $tmph1 "$input\n";
 403     }
 404     close $tmph1;
 405     # Generate the temporary file that acts as <MODULE>/<LANG>.pot
 406     $st = system($xgettext, '-s', '-f', $tmpfile1, '-o', $tmpfile2,
 407         '--po-mode',
 408         (defined $charset_in? ('-I', $charset_in): ()),
 409         (defined $charset_out? ('-O', $charset_out): ()));
 410     if ($st == 0) {
 411         # Merge the temporary "pot file" with the specified po file ($str_file)
 412         # FIXME: msgmerge(1) is a Unix dependency
 413         # FIXME: need to check the return value
 414         if ( @filenames ) {
 415             my ($tmph3, $tmpfile3) = tmpnam();
 416             $st = system("msgcat $str_file $tmpfile2 > $tmpfile3");
 417             $st = system("msgmerge ".($quiet?'-q':'')." -s $str_file $tmpfile3 -o - | msgattrib --no-obsolete -o $str_file")
 418                 unless $st;
 419         } else {
 420             $st = system("msgmerge ".($quiet?'-q':'')." -s $str_file $tmpfile2 -o - | msgattrib --no-obsolete -o $str_file");
 421         }
 422     } else {
 423         error_normal("Text extraction failed: $xgettext: $!\n", undef);
 424         error_additional("Will not run msgmerge\n", undef);
 425     }
 426     unlink $tmpfile1 || warn_normal("$tmpfile1: unlink failed: $!\n", undef);
 427     unlink $tmpfile2 || warn_normal("$tmpfile2: unlink failed: $!\n", undef);
 428
 429 } elsif ($action eq 'install') {
 430     if(!defined($out_dir)) {
 431     usage_error("You must specify an output directory when using the install method.");
 432     }
 433
 434     if ( scalar @in_dirs > 1 ) {
 435     usage_error("You must specify only one input directory when using the install method.");
 436     }
 437
 438     my $in_dir = shift @in_dirs;
 439
 440     if ($in_dir eq $out_dir) {
 441     warn "You must specify a different input and output directory.\n";
 442     exit -1;
 443     }
 444
 445     # Make sure the output directory exists
 446     # (It will auto-create it, but for compatibility we should not)
 447     -d $out_dir || die "$out_dir: The directory does not exist\n";
 448
 449     # Try to open the file, because Locale::PO doesn't check :-/
 450     open(my $fh, '<', $str_file) || die "$str_file: $!\n";
 451     close $fh;
 452
 453     # creates the new tmpl file using the new translation
 454     for my $input (@in_files) {
 455         die "Assertion failed"
 456             unless substr($input, 0, length($in_dir) + 1) eq "$in_dir/";
 457
 458         my $target = $out_dir . substr($input, length($in_dir));
 459         my $targetdir = ($target =~ /[^\/]+$/s) ? $` : undef;
 460
 461         if (!defined $type || $input =~ /\.(?:$type)$/) {
 462             my $h = TmplTokenizer->new( $input );
 463             $h->set_allow_cformat( 1 );
 464             VerboseWarnings::set_input_file_name($input);
 465             mkdir_recursive($targetdir) unless -d $targetdir;
 466             print STDERR "Creating $target...\n" unless $quiet;
 467             open( my $fh, ">:encoding(UTF-8)", "$target" ) || die "$target: $!\n";
 468             text_replace( $h, $fh );
 469             close $fh;
 470         } else {
 471         # just copying the file
 472             mkdir_recursive($targetdir) unless -d $targetdir;
 473             system("cp -f $input $target");
 474             print STDERR "Copying $input...\n" unless $quiet;
 475         }
 476     }
 477
 478 } else {
 479     usage_error('Unknown action specified.');
 480 }
 481
 482 if ($st == 0) {
 483     printf "The %s seems to be successful.\n", $action unless $quiet;
 484 } else {
 485     printf "%s FAILED.\n", "\u$action" unless $quiet;
 486 }
 487 exit 0;
 488
 489 ###############################################################################
 490
 491 =head1 SYNOPSIS
 492
 493 ./tmpl_process3.pl [ I<tmpl_process.pl options> ]
 494
 495 =head1 DESCRIPTION
 496
 497 This is an alternative version of the tmpl_process.pl script,
 498 using standard gettext-style PO files.  While there still might
 499 be changes made to the way it extracts strings, at this moment
 500 it should be stable enough for general use; it is already being
 501 used for the Chinese and Polish translations.
 502
 503 Currently, the create, update, and install actions have all been
 504 reimplemented and seem to work.
 505
 506 =head2 Features
 507
 508 =over
 509
 510 =item -
 511
 512 Translation files in standard Uniforum PO format.
 513 All standard tools including all gettext tools,
 514 plus PO file editors like kbabel(1) etc.
 515 can be used.
 516
 517 =item -
 518
 519 Minor changes in whitespace in source templates
 520 do not generally require strings to be re-translated.
 521
 522 =item -
 523
 524 Able to handle <TMPL_VAR> variables in the templates;
 525 <TMPL_VAR> variables are usually extracted in proper context,
 526 represented by a short %s placeholder.
 527
 528 =item -
 529
 530 Able to handle text input and radio button INPUT elements
 531 in the templates; these INPUT elements are also usually
 532 extracted in proper context,
 533 represented by a short %S or %p placeholder.
 534
 535 =item -
 536
 537 Automatic comments in the generated PO files to provide
 538 even more context (line numbers, and the names and types
 539 of the variables).
 540
 541 =item -
 542
 543 The %I<n>$s (or %I<n>$p, etc.) notation can be used
 544 for change the ordering of the variables,
 545 if such a reordering is required for correct translation.
 546
 547 =item -
 548
 549 If a particular <TMPL_VAR> should not appear in the
 550 translation, it can be suppressed with the %0.0s notation.
 551
 552 =item -
 553
 554 Using the PO format also means translators can add their
 555 own comments in the translation files, if necessary.
 556
 557 =item -
 558
 559 Create, update, and install actions are all based on the
 560 same scanner module. This ensures that update and install
 561 have the same idea of what is a translatable string;
 562 attribute names in tags, for example, will not be
 563 accidentally translated.
 564
 565 =back
 566
 567 =head1 NOTES
 568
 569 Anchors are represented by an <AI<n>> notation.
 570 The meaning of this non-standard notation might not be obvious.
 571
 572 The create action calls xgettext.pl to do the actual work;
 573 the update action calls xgettext.pl, msgmerge(1) and msgattrib(1)
 574 to do the actual work.
 575
 576 =head1 BUGS
 577
 578 xgettext.pl must be present in the current directory; both
 579 msgmerge(1) and msgattrib(1) must also be present in the search path.
 580 The script currently does not check carefully whether these
 581 dependent commands are present.
 582
 583 Locale::PO(3) has a lot of bugs. It can neither parse nor
 584 generate GNU PO files properly; a couple of workarounds have
 585 been written in TmplTokenizer and more is likely to be needed
 586 (e.g., to get rid of the "Strange line" warning for #~).
 587
 588 This script may not work in Windows.
 589
 590 There are probably some other bugs too, since this has not been
 591 tested very much.
 592
 593 =head1 SEE ALSO
 594
 595 xgettext.pl,
 596 TmplTokenizer.pm,
 597 msgmerge(1),
 598 Locale::PO(3),
 599 translator_doc.txt
 600
 601 http://www.saas.nsw.edu.au/koha_wiki/index.php?page=DifficultTerms
 602
 603 =cut