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 = lc($1) if $t =~ /^<(\S+)/s;
  66     my $translated_p = 0;
  67     for my $a ('alt', 'content', 'title', 'value', 'label', 'placeholder') {
  68     if ($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/ ) {
  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/ 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 $str_file) {
 379         local(*INPUT, *OUTPUT);
 380         open(INPUT, "<$tmpfile2");
 381         open(OUTPUT, ">$str_file");
 382         while (<INPUT>) {
 383         print OUTPUT;
 384         last if /^\n/s;
 385         }
 386         close INPUT;
 387         close OUTPUT;
 388     }
 389     $st = system("msgmerge ".($quiet?'-q':'')." -s $str_file $tmpfile2 -o - | msgattrib --no-obsolete -o $str_file");
 390     } else {
 391     error_normal "Text extraction failed: $xgettext: $!\n", undef;
 392     error_additional "Will not run msgmerge\n", undef;
 393     }
 394     unlink $tmpfile1 || warn_normal "$tmpfile1: unlink failed: $!\n", undef;
 395     unlink $tmpfile2 || warn_normal "$tmpfile2: unlink failed: $!\n", undef;
 396
 397 } elsif ($action eq 'update') {
 398     my($tmph1, $tmpfile1) = tmpnam();
 399     my($tmph2, $tmpfile2) = tmpnam();
 400     close $tmph2; # We just want a name
 401     # Generate the temporary file that acts as <MODULE>/POTFILES.in
 402     for my $input (@in_files) {
 403     print $tmph1 "$input\n";
 404     }
 405     close $tmph1;
 406     # Generate the temporary file that acts as <MODULE>/<LANG>.pot
 407     $st = system($xgettext, '-s', '-f', $tmpfile1, '-o', $tmpfile2,
 408         '--po-mode',
 409         (defined $charset_in? ('-I', $charset_in): ()),
 410         (defined $charset_out? ('-O', $charset_out): ()));
 411     if ($st == 0) {
 412         # Merge the temporary "pot file" with the specified po file ($str_file)
 413         # FIXME: msgmerge(1) is a Unix dependency
 414         # FIXME: need to check the return value
 415         if ( @filenames ) {
 416             my ($tmph3, $tmpfile3) = tmpnam();
 417             $st = system("msgcat $str_file $tmpfile2 > $tmpfile3");
 418             $st = system("msgmerge ".($quiet?'-q':'')." -s $str_file $tmpfile3 -o - | msgattrib --no-obsolete -o $str_file")
 419                 unless $st;
 420         } else {
 421             $st = system("msgmerge ".($quiet?'-q':'')." -s $str_file $tmpfile2 -o - | msgattrib --no-obsolete -o $str_file");
 422         }
 423     } else {
 424         error_normal "Text extraction failed: $xgettext: $!\n", undef;
 425         error_additional "Will not run msgmerge\n", undef;
 426     }
 427     unlink $tmpfile1 || warn_normal "$tmpfile1: unlink failed: $!\n", undef;
 428     unlink $tmpfile2 || warn_normal "$tmpfile2: unlink failed: $!\n", undef;
 429
 430 } elsif ($action eq 'install') {
 431     if(!defined($out_dir)) {
 432     usage_error("You must specify an output directory when using the install method.");
 433     }
 434
 435     if ( scalar @in_dirs > 1 ) {
 436     usage_error("You must specify only one input directory when using the install method.");
 437     }
 438
 439     my $in_dir = shift @in_dirs;
 440
 441     if ($in_dir eq $out_dir) {
 442     warn "You must specify a different input and output directory.\n";
 443     exit -1;
 444     }
 445
 446     # Make sure the output directory exists
 447     # (It will auto-create it, but for compatibility we should not)
 448     -d $out_dir || die "$out_dir: The directory does not exist\n";
 449
 450     # Try to open the file, because Locale::PO doesn't check :-/
 451     open(INPUT, "<$str_file") || die "$str_file: $!\n";
 452     close INPUT;
 453
 454     # creates the new tmpl file using the new translation
 455     for my $input (@in_files) {
 456         die "Assertion failed"
 457             unless substr($input, 0, length($in_dir) + 1) eq "$in_dir/";
 458
 459         my $target = $out_dir . substr($input, length($in_dir));
 460         my $targetdir = $` if $target =~ /[^\/]+$/s;
 461
 462         if (!defined $type || $input =~ /\.(?:$type)$/) {
 463             my $h = TmplTokenizer->new( $input );
 464             $h->set_allow_cformat( 1 );
 465             VerboseWarnings::set_input_file_name $input;
 466             mkdir_recursive($targetdir) unless -d $targetdir;
 467             print STDERR "Creating $target...\n" unless $quiet;
 468             open( OUTPUT, ">:encoding(UTF-8)", "$target" ) || die "$target: $!\n";
 469             text_replace( $h, *OUTPUT );
 470             close OUTPUT;
 471         } else {
 472         # just copying the file
 473             mkdir_recursive($targetdir) unless -d $targetdir;
 474             system("cp -f $input $target");
 475             print STDERR "Copying $input...\n" unless $quiet;
 476         }
 477     }
 478
 479 } else {
 480     usage_error('Unknown action specified.');
 481 }
 482
 483 if ($st == 0) {
 484     printf "The %s seems to be successful.\n", $action unless $quiet;
 485 } else {
 486     printf "%s FAILED.\n", "\u$action" unless $quiet;
 487 }
 488 exit 0;
 489
 490 ###############################################################################
 491
 492 =head1 SYNOPSIS
 493
 494 ./tmpl_process3.pl [ I<tmpl_process.pl options> ]
 495
 496 =head1 DESCRIPTION
 497
 498 This is an alternative version of the tmpl_process.pl script,
 499 using standard gettext-style PO files.  While there still might
 500 be changes made to the way it extracts strings, at this moment
 501 it should be stable enough for general use; it is already being
 502 used for the Chinese and Polish translations.
 503
 504 Currently, the create, update, and install actions have all been
 505 reimplemented and seem to work.
 506
 507 =head2 Features
 508
 509 =over
 510
 511 =item -
 512
 513 Translation files in standard Uniforum PO format.
 514 All standard tools including all gettext tools,
 515 plus PO file editors like kbabel(1) etc.
 516 can be used.
 517
 518 =item -
 519
 520 Minor changes in whitespace in source templates
 521 do not generally require strings to be re-translated.
 522
 523 =item -
 524
 525 Able to handle <TMPL_VAR> variables in the templates;
 526 <TMPL_VAR> variables are usually extracted in proper context,
 527 represented by a short %s placeholder.
 528
 529 =item -
 530
 531 Able to handle text input and radio button INPUT elements
 532 in the templates; these INPUT elements are also usually
 533 extracted in proper context,
 534 represented by a short %S or %p placeholder.
 535
 536 =item -
 537
 538 Automatic comments in the generated PO files to provide
 539 even more context (line numbers, and the names and types
 540 of the variables).
 541
 542 =item -
 543
 544 The %I<n>$s (or %I<n>$p, etc.) notation can be used
 545 for change the ordering of the variables,
 546 if such a reordering is required for correct translation.
 547
 548 =item -
 549
 550 If a particular <TMPL_VAR> should not appear in the
 551 translation, it can be suppressed with the %0.0s notation.
 552
 553 =item -
 554
 555 Using the PO format also means translators can add their
 556 own comments in the translation files, if necessary.
 557
 558 =item -
 559
 560 Create, update, and install actions are all based on the
 561 same scanner module. This ensures that update and install
 562 have the same idea of what is a translatable string;
 563 attribute names in tags, for example, will not be
 564 accidentally translated.
 565
 566 =back
 567
 568 =head1 NOTES
 569
 570 Anchors are represented by an <AI<n>> notation.
 571 The meaning of this non-standard notation might not be obvious.
 572
 573 The create action calls xgettext.pl to do the actual work;
 574 the update action calls xgettext.pl, msgmerge(1) and msgattrib(1)
 575 to do the actual work.
 576
 577 =head1 BUGS
 578
 579 xgettext.pl must be present in the current directory; both
 580 msgmerge(1) and msgattrib(1) must also be present in the search path.
 581 The script currently does not check carefully whether these
 582 dependent commands are present.
 583
 584 Locale::PO(3) has a lot of bugs. It can neither parse nor
 585 generate GNU PO files properly; a couple of workarounds have
 586 been written in TmplTokenizer and more is likely to be needed
 587 (e.g., to get rid of the "Strange line" warning for #~).
 588
 589 This script may not work in Windows.
 590
 591 There are probably some other bugs too, since this has not been
 592 tested very much.
 593
 594 =head1 SEE ALSO
 595
 596 xgettext.pl,
 597 TmplTokenizer.pm,
 598 msgmerge(1),
 599 Locale::PO(3),
 600 translator_doc.txt
 601
 602 http://www.saas.nsw.edu.au/koha_wiki/index.php?page=DifficultTerms
 603
 604 =cut