1#!@INTLTOOL_PERL@ -w
2# -*- Mode: perl; indent-tabs-mode: nil; c-basic-offset: 4  -*-
3
4#
5#  The Intltool Message Updater
6#
7#  Copyright (C) 2000-2003 Free Software Foundation.
8#
9#  Intltool is free software; you can redistribute it and/or
10#  modify it under the terms of the GNU General Public License
11#  version 2 published by the Free Software Foundation.
12#
13#  Intltool is distributed in the hope that it will be useful,
14#  but WITHOUT ANY WARRANTY; without even the implied warranty of
15#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16#  General Public License for more details.
17#
18#  You should have received a copy of the GNU General Public License
19#  along with this program; if not, write to the Free Software
20#  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21#
22#  As a special exception to the GNU General Public License, if you
23#  distribute this file as part of a program that contains a
24#  configuration script generated by Autoconf, you may include it under
25#  the same distribution terms that you use for the rest of that program.
26#
27#  Authors: Kenneth Christiansen <kenneth@gnu.org>
28#           Maciej Stachowiak
29#           Darin Adler <darin@bentspoon.com>
30
31## Release information
32my $PROGRAM = "intltool-update";
33my $VERSION = "0.36.2";
34my $PACKAGE = "intltool";
35
36## Loaded modules
37use strict;
38use Getopt::Long;
39use Cwd;
40use File::Copy;
41use File::Find;
42
43## Scalars used by the option stuff
44my $HELP_ARG 	   = 0;
45my $VERSION_ARG    = 0;
46my $DIST_ARG	   = 0;
47my $POT_ARG	   = 0;
48my $HEADERS_ARG    = 0;
49my $MAINTAIN_ARG   = 0;
50my $REPORT_ARG     = 0;
51my $VERBOSE	   = 0;
52my $GETTEXT_PACKAGE = "";
53my $OUTPUT_FILE    = "";
54
55my @languages;
56my %varhash = ();
57my %po_files_by_lang = ();
58
59# Regular expressions to categorize file types.
60# FIXME: Please check if the following is correct
61
62my $xml_support =
63"xml(?:\\.in)*|".	# http://www.w3.org/XML/ (Note: .in is not required)
64"ui|".			# Bonobo specific - User Interface desc. files
65"lang|".		# ?
66"glade2?(?:\\.in)*|".	# Glade specific - User Interface desc. files (Note: .in is not required)
67"scm(?:\\.in)*|".	# ? (Note: .in is not required)
68"oaf(?:\\.in)+|".	# DEPRECATED: Replaces by Bonobo .server files
69"etspec|".		# ?
70"server(?:\\.in)+|".	# Bonobo specific
71"sheet(?:\\.in)+|".	# ?
72"schemas(?:\\.in)+|".	# GConf specific
73"pong(?:\\.in)+|".	# DEPRECATED: PONG is not used [by GNOME] any longer.
74"kbd(?:\\.in)+|".	# GOK specific.
75"policy(?:\\.in)+";	# PolicyKit files
76
77my $ini_support =
78"icon(?:\\.in)+|".	# http://www.freedesktop.org/Standards/icon-theme-spec
79"desktop(?:\\.in)+|".	# http://www.freedesktop.org/Standards/menu-spec
80"caves(?:\\.in)+|".	# GNOME Games specific
81"directory(?:\\.in)+|".	# http://www.freedesktop.org/Standards/menu-spec
82"soundlist(?:\\.in)+|".	# GNOME specific
83"keys(?:\\.in)+|".	# GNOME Mime database specific
84"theme(?:\\.in)+|".	# http://www.freedesktop.org/Standards/icon-theme-spec
85"service(?:\\.in)+";    # DBus specific
86
87my $buildin_gettext_support =
88"c|y|cs|cc|cpp|c\\+\\+|h|hh|gob|py";
89
90## Always flush buffer when printing
91$| = 1;
92
93## Sometimes the source tree will be rooted somewhere else.
94my $SRCDIR = $ENV{"srcdir"} || ".";
95my $POTFILES_in;
96
97$POTFILES_in = "<$SRCDIR/POTFILES.in";
98
99my $devnull = ($^O eq 'MSWin32' ? 'NUL:' : '/dev/null');
100
101## Handle options
102GetOptions
103(
104 "help" 	       => \$HELP_ARG,
105 "version" 	       => \$VERSION_ARG,
106 "dist|d"	       => \$DIST_ARG,
107 "pot|p"	       => \$POT_ARG,
108 "headers|s"	       => \$HEADERS_ARG,
109 "maintain|m"	       => \$MAINTAIN_ARG,
110 "report|r"	       => \$REPORT_ARG,
111 "verbose|x"	       => \$VERBOSE,
112 "gettext-package|g=s" => \$GETTEXT_PACKAGE,
113 "output-file|o=s"     => \$OUTPUT_FILE,
114 ) or &Console_WriteError_InvalidOption;
115
116&Console_Write_IntltoolHelp if $HELP_ARG;
117&Console_Write_IntltoolVersion if $VERSION_ARG;
118
119my $arg_count = ($DIST_ARG > 0)
120    + ($POT_ARG > 0)
121    + ($HEADERS_ARG > 0)
122    + ($MAINTAIN_ARG > 0)
123    + ($REPORT_ARG > 0);
124
125&Console_Write_IntltoolHelp if $arg_count > 1;
126
127my $PKGNAME = FindPackageName ();
128
129# --version and --help don't require a module name
130my $MODULE = $GETTEXT_PACKAGE || $PKGNAME || "unknown";
131
132if ($POT_ARG)
133{
134    &GenerateHeaders;
135    &GeneratePOTemplate;
136}
137elsif ($HEADERS_ARG)
138{
139    &GenerateHeaders;
140}
141elsif ($MAINTAIN_ARG)
142{
143    &FindLeftoutFiles;
144}
145elsif ($REPORT_ARG)
146{
147    &GenerateHeaders;
148    &GeneratePOTemplate;
149    &Console_Write_CoverageReport;
150}
151elsif ((defined $ARGV[0]) && $ARGV[0] =~ /^[a-z]/)
152{
153    my $lang = $ARGV[0];
154
155    ## Report error if the language file supplied
156    ## to the command line is non-existent
157    &Console_WriteError_NotExisting("$SRCDIR/$lang.po")
158        if ! -s "$SRCDIR/$lang.po";
159
160    if (!$DIST_ARG)
161    {
162	print "Working, please wait..." if $VERBOSE;
163	&GenerateHeaders;
164	&GeneratePOTemplate;
165    }
166    &POFile_Update ($lang, $OUTPUT_FILE);
167    &Console_Write_TranslationStatus ($lang, $OUTPUT_FILE);
168}
169else
170{
171    &Console_Write_IntltoolHelp;
172}
173
174exit;
175
176#########
177
178sub Console_Write_IntltoolVersion
179{
180    print <<_EOF_;
181${PROGRAM} (${PACKAGE}) $VERSION
182Written by Kenneth Christiansen, Maciej Stachowiak, and Darin Adler.
183
184Copyright (C) 2000-2003 Free Software Foundation, Inc.
185This is free software; see the source for copying conditions.  There is NO
186warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
187_EOF_
188    exit;
189}
190
191sub Console_Write_IntltoolHelp
192{
193    print <<_EOF_;
194Usage: ${PROGRAM} [OPTION]... LANGCODE
195Updates PO template files and merge them with the translations.
196
197Mode of operation (only one is allowed):
198  -p, --pot                   generate the PO template only
199  -s, --headers               generate the header files in POTFILES.in
200  -m, --maintain              search for left out files from POTFILES.in
201  -r, --report                display a status report for the module
202  -d, --dist                  merge LANGCODE.po with existing PO template
203
204Extra options:
205  -g, --gettext-package=NAME  override PO template name, useful with --pot
206  -o, --output-file=FILE      write merged translation to FILE
207  -x, --verbose               display lots of feedback
208      --help                  display this help and exit
209      --version               output version information and exit
210
211Examples of use:
212${PROGRAM} --pot    just create a new PO template
213${PROGRAM} xy       create new PO template and merge xy.po with it
214
215Report bugs to http://bugzilla.gnome.org/ (product name "$PACKAGE")
216or send email to <xml-i18n-tools\@gnome.org>.
217_EOF_
218    exit;
219}
220
221sub echo_n
222{
223    my $str = shift;
224    my $ret = `echo "$str"`;
225
226    $ret =~ s/\n$//; # do we need the "s" flag?
227
228    return $ret;
229}
230
231sub POFile_DetermineType ($)
232{
233   my $type = $_;
234   my $gettext_type;
235
236   my $xml_regex     = "(?:" . $xml_support . ")";
237   my $ini_regex     = "(?:" . $ini_support . ")";
238   my $buildin_regex = "(?:" . $buildin_gettext_support . ")";
239
240   if ($type =~ /\[type: gettext\/([^\]].*)]/)
241   {
242	$gettext_type=$1;
243   }
244   elsif ($type =~ /schemas(\.in)+$/)
245   {
246	$gettext_type="schemas";
247   }
248   elsif ($type =~ /glade2?(\.in)*$/)
249   {
250       $gettext_type="glade";
251   }
252   elsif ($type =~ /scm(\.in)*$/)
253   {
254       $gettext_type="scheme";
255   }
256   elsif ($type =~ /keys(\.in)+$/)
257   {
258       $gettext_type="keys";
259   }
260
261   # bucket types
262
263   elsif ($type =~ /$xml_regex$/)
264   {
265       $gettext_type="xml";
266   }
267   elsif ($type =~ /$ini_regex$/)
268   {
269       $gettext_type="ini";
270   }
271   elsif ($type =~ /$buildin_regex$/)
272   {
273       $gettext_type="buildin";
274   }
275   else
276   {
277       $gettext_type="unknown";
278   }
279
280   return "gettext\/$gettext_type";
281}
282
283sub TextFile_DetermineEncoding ($)
284{
285    my $gettext_code="ASCII"; # All files are ASCII by default
286    my $filetype=`file $_ | cut -d ' ' -f 2`;
287
288    if ($? eq "0")
289    {
290	if ($filetype =~ /^(ISO|UTF)/)
291	{
292	    chomp ($gettext_code = $filetype);
293	}
294	elsif ($filetype =~ /^XML/)
295	{
296	    $gettext_code="UTF-8"; # We asume that .glade and other .xml files are UTF-8
297	}
298    }
299
300    return $gettext_code;
301}
302
303sub isNotValidMissing
304{
305    my ($file) = @_;
306
307    return if $file =~ /^\{arch\}\/.*$/;
308    return if $file =~ /^$varhash{"PACKAGE"}-$varhash{"VERSION"}\/.*$/;
309}
310
311sub FindLeftoutFiles
312{
313    my (@buf_i18n_plain,
314	@buf_i18n_xml,
315	@buf_i18n_xml_unmarked,
316	@buf_i18n_ini,
317	@buf_potfiles,
318	@buf_potfiles_ignore,
319	@buf_allfiles,
320	@buf_allfiles_sorted,
321	@buf_potfiles_sorted,
322        @buf_potfiles_ignore_sorted
323    );
324
325    ## Search and find all translatable files
326    find sub {
327	push @buf_i18n_plain,        "$File::Find::name" if /\.($buildin_gettext_support)$/;
328	push @buf_i18n_xml,          "$File::Find::name" if /\.($xml_support)$/;
329	push @buf_i18n_ini,          "$File::Find::name" if /\.($ini_support)$/;
330	push @buf_i18n_xml_unmarked, "$File::Find::name" if /\.(schemas(\.in)+)$/;
331	}, "..";
332    find sub {
333	push @buf_i18n_plain,        "$File::Find::name" if /\.($buildin_gettext_support)$/;
334	push @buf_i18n_xml,          "$File::Find::name" if /\.($xml_support)$/;
335	push @buf_i18n_ini,          "$File::Find::name" if /\.($ini_support)$/;
336	push @buf_i18n_xml_unmarked, "$File::Find::name" if /\.(schemas(\.in)+)$/;
337	}, "$SRCDIR/..";
338
339    open POTFILES, $POTFILES_in or die "$PROGRAM:  there's no POTFILES.in!\n";
340    @buf_potfiles = grep !/^(#|\s*$)/, <POTFILES>;
341    close POTFILES;
342
343    foreach (@buf_potfiles) {
344	s/^\[.*]\s*//;
345    }
346
347    print "Searching for missing translatable files...\n" if $VERBOSE;
348
349    ## Check if we should ignore some found files, when
350    ## comparing with POTFILES.in
351    foreach my $ignore ("POTFILES.skip", "POTFILES.ignore")
352    {
353	(-s "$SRCDIR/$ignore") or next;
354
355	if ("$ignore" eq "POTFILES.ignore")
356	{
357	    print "The usage of POTFILES.ignore is deprecated. Please consider moving the\n".
358		  "content of this file to POTFILES.skip.\n";
359	}
360
361	print "Found $ignore: Ignoring files...\n" if $VERBOSE;
362	open FILE, "<$SRCDIR/$ignore" or die "ERROR: Failed to open $SRCDIR/$ignore!\n";
363
364	while (<FILE>)
365	{
366	    push @buf_potfiles_ignore, $_ unless /^(#|\s*$)/;
367	}
368	close FILE;
369
370	@buf_potfiles_ignore_sorted = sort (@buf_potfiles_ignore);
371    }
372
373    foreach my $file (@buf_i18n_plain)
374    {
375	my $in_comment = 0;
376	my $in_macro = 0;
377
378	open FILE, "<$file";
379	while (<FILE>)
380	{
381	    # Handle continued multi-line comment.
382	    if ($in_comment)
383	    {
384		next unless s-.*\*/--;
385		$in_comment = 0;
386	    }
387
388	    # Handle continued macro.
389	    if ($in_macro)
390	    {
391		$in_macro = 0 unless /\\$/;
392		next;
393	    }
394
395	    # Handle start of macro (or any preprocessor directive).
396	    if (/^\s*\#/)
397	    {
398		$in_macro = 1 if /^([^\\]|\\.)*\\$/;
399		next;
400	    }
401
402	    # Handle comments and quoted text.
403	    while (m-(/\*|//|\'|\")-) # \' and \" keep emacs perl mode happy
404	    {
405		my $match = $1;
406		if ($match eq "/*")
407		{
408		    if (!s-/\*.*?\*/--)
409		    {
410			s-/\*.*--;
411			$in_comment = 1;
412		    }
413		}
414		elsif ($match eq "//")
415		{
416		    s-//.*--;
417		}
418		else # ' or "
419		{
420		    if (!s-$match([^\\]|\\.)*?$match-QUOTEDTEXT-)
421		    {
422			warn "mismatched quotes at line $. in $file\n";
423			s-$match.*--;
424		    }
425		}
426	    }
427
428	    if (/\w\.GetString *\(QUOTEDTEXT/)
429	    {
430                if (defined isNotValidMissing (unpack("x3 A*", $file))) {
431                    ## Remove the first 3 chars and add newline
432                    push @buf_allfiles, unpack("x3 A*", $file) . "\n";
433                }
434		last;
435	    }
436
437            ## N_ Q_ and _ are the three macros defined in gi8n.h
438	    if (/[NQ]?_ *\(QUOTEDTEXT/)
439	    {
440                if (defined isNotValidMissing (unpack("x3 A*", $file))) {
441                    ## Remove the first 3 chars and add newline
442                    push @buf_allfiles, unpack("x3 A*", $file) . "\n";
443                }
444		last;
445	    }
446	}
447	close FILE;
448    }
449
450    foreach my $file (@buf_i18n_xml)
451    {
452	open FILE, "<$file";
453
454	while (<FILE>)
455	{
456	    # FIXME: share the pattern matching code with intltool-extract
457	    if (/\s_[-A-Za-z0-9._:]+\s*=\s*\"([^"]+)\"/ || /<_[^>]+>/ || /translatable=\"yes\"/)
458	    {
459                if (defined isNotValidMissing (unpack("x3 A*", $file))) {
460                    push @buf_allfiles, unpack("x3 A*", $file) . "\n";
461                }
462		last;
463	    }
464	}
465	close FILE;
466    }
467
468    foreach my $file (@buf_i18n_ini)
469    {
470	open FILE, "<$file";
471	while (<FILE>)
472	{
473	    if (/_(.*)=/)
474	    {
475                if (defined isNotValidMissing (unpack("x3 A*", $file))) {
476                    push @buf_allfiles, unpack("x3 A*", $file) . "\n";
477                }
478		last;
479	    }
480	}
481	close FILE;
482    }
483
484    foreach my $file (@buf_i18n_xml_unmarked)
485    {
486        if (defined isNotValidMissing (unpack("x3 A*", $file))) {
487            push @buf_allfiles, unpack("x3 A*", $file) . "\n";
488        }
489    }
490
491
492    @buf_allfiles_sorted = sort (@buf_allfiles);
493    @buf_potfiles_sorted = sort (@buf_potfiles);
494
495    my %in2;
496    foreach (@buf_potfiles_sorted)
497    {
498        s#^$SRCDIR/../##;
499        s#^$SRCDIR/##;
500	$in2{$_} = 1;
501    }
502
503    foreach (@buf_potfiles_ignore_sorted)
504    {
505        s#^$SRCDIR/../##;
506        s#^$SRCDIR/##;
507	$in2{$_} = 1;
508    }
509
510    my @result;
511
512    foreach (@buf_allfiles_sorted)
513    {
514        my $dummy = $_;
515        my $srcdir = $SRCDIR;
516
517        $srcdir =~ s#^../##;
518        $dummy =~ s#^$srcdir/../##;
519        $dummy =~ s#^$srcdir/##;
520        $dummy =~ s#_build/##;
521	if (!exists($in2{$dummy}))
522	{
523	    push @result, $dummy
524	}
525    }
526
527    my @buf_potfiles_notexist;
528
529    foreach (@buf_potfiles_sorted)
530    {
531	chomp (my $dummy = $_);
532	if ("$dummy" ne "" and !(-f "$SRCDIR/../$dummy" or -f "../$dummy"))
533	{
534	    push @buf_potfiles_notexist, $_;
535	}
536    }
537
538    ## Save file with information about the files missing
539    ## if any, and give information about this procedure.
540    if (@result + @buf_potfiles_notexist > 0)
541    {
542	if (@result)
543	{
544	    print "\n" if $VERBOSE;
545	    unlink "missing";
546	    open OUT, ">missing";
547	    print OUT @result;
548	    close OUT;
549	    warn "\e[1mThe following files contain translations and are currently not in use. Please\e[0m\n".
550	         "\e[1mconsider adding these to the POTFILES.in file, located in the po/ directory.\e[0m\n\n";
551	    print STDERR @result, "\n";
552	    warn "If some of these files are left out on purpose then please add them to\n".
553		 "POTFILES.skip instead of POTFILES.in. A file \e[1m'missing'\e[0m containing this list\n".
554		 "of left out files has been written in the current directory.\n";
555	}
556	if (@buf_potfiles_notexist)
557	{
558	    unlink "notexist";
559	    open OUT, ">notexist";
560	    print OUT @buf_potfiles_notexist;
561	    close OUT;
562	    warn "\n" if ($VERBOSE or @result);
563	    warn "\e[1mThe following files do not exist anymore:\e[0m\n\n";
564	    warn @buf_potfiles_notexist, "\n";
565	    warn "Please remove them from POTFILES.in. A file \e[1m'notexist'\e[0m\n".
566		 "containing this list of absent files has been written in the current directory.\n";
567	}
568    }
569
570    ## If there is nothing to complain about, notify the user
571    else {
572	print "\nAll files containing translations are present in POTFILES.in.\n" if $VERBOSE;
573    }
574}
575
576sub Console_WriteError_InvalidOption
577{
578    ## Handle invalid arguments
579    print STDERR "Try `${PROGRAM} --help' for more information.\n";
580    exit 1;
581}
582
583sub isProgramInPath
584{
585    my ($file) = @_;
586    # If either a file exists, or when run it returns 0 exit status
587    return 1 if ((-x $file) or (system("$file --version >$devnull") == 0));
588    return 0;
589}
590
591sub isGNUGettextTool
592{
593    my ($file) = @_;
594    # Check that we are using GNU gettext tools
595    if (isProgramInPath ($file))
596    {
597        my $version = `$file --version`;
598        return 1 if ($version =~ m/.*\(GNU .*\).*/);
599    }
600    return 0;
601}
602
603sub GenerateHeaders
604{
605    my $EXTRACT = $ENV{"INTLTOOL_EXTRACT"} || "intltool-extract";
606
607    ## Generate the .h header files, so we can allow glade and
608    ## xml translation support
609    if (! isProgramInPath ("$EXTRACT"))
610    {
611	print STDERR "\n *** The intltool-extract script wasn't found!"
612	     ."\n *** Without it, intltool-update can not generate files.\n";
613	exit;
614    }
615    else
616    {
617	open (FILE, $POTFILES_in) or die "$PROGRAM: POTFILES.in not found.\n";
618
619	while (<FILE>)
620	{
621	   chomp;
622	   next if /^\[\s*encoding/;
623
624	   ## Find xml files in POTFILES.in and generate the
625	   ## files with help from the extract script
626
627	   my $gettext_type= &POFile_DetermineType ($1);
628
629	   if (/\.($xml_support|$ini_support)$/ || /^\[/)
630	   {
631	       s/^\[[^\[].*]\s*//;
632
633	       my $filename = "../$_";
634
635	       if ($VERBOSE)
636	       {
637		   system ($EXTRACT, "--update", "--srcdir=$SRCDIR",
638			   "--type=$gettext_type", $filename);
639	       }
640	       else
641	       {
642	 	   system ($EXTRACT, "--update", "--type=$gettext_type",
643			   "--srcdir=$SRCDIR", "--quiet", $filename);
644	       }
645	   }
646       }
647       close FILE;
648   }
649}
650
651#
652# Generate .pot file from POTFILES.in
653#
654sub GeneratePOTemplate
655{
656    my $XGETTEXT = $ENV{"XGETTEXT"} || "xgettext";
657    my $XGETTEXT_ARGS = $ENV{"XGETTEXT_ARGS"} || '';
658    chomp $XGETTEXT;
659
660    if (! isGNUGettextTool ("$XGETTEXT"))
661    {
662	print STDERR " *** GNU xgettext is not found on this system!\n".
663		     " *** Without it, intltool-update can not extract strings.\n";
664	exit;
665    }
666
667    print "Building $MODULE.pot...\n" if $VERBOSE;
668
669    open INFILE, $POTFILES_in;
670    unlink "POTFILES.in.temp";
671    open OUTFILE, ">POTFILES.in.temp" or die("Cannot open POTFILES.in.temp for writing");
672
673    my $gettext_support_nonascii = 0;
674
675    # checks for GNU gettext >= 0.12
676    my $dummy = `$XGETTEXT --version --from-code=UTF-8 >$devnull 2>$devnull`;
677    if ($? == 0)
678    {
679	$gettext_support_nonascii = 1;
680    }
681    else
682    {
683	# urge everybody to upgrade gettext
684	print STDERR "WARNING: This version of gettext does not support extracting non-ASCII\n".
685		     "         strings. That means you should install a version of gettext\n".
686		     "         that supports non-ASCII strings (such as GNU gettext >= 0.12),\n".
687		     "         or have to let non-ASCII strings untranslated. (If there is any)\n";
688    }
689
690    my $encoding = "ASCII";
691    my $forced_gettext_code;
692    my @temp_headers;
693    my $encoding_problem_is_reported = 0;
694
695    while (<INFILE>)
696    {
697	next if (/^#/ or /^\s*$/);
698
699	chomp;
700
701	my $gettext_code;
702
703	if (/^\[\s*encoding:\s*(.*)\s*\]/)
704	{
705	    $forced_gettext_code=$1;
706	}
707	elsif (/\.($xml_support|$ini_support)$/ || /^\[/)
708	{
709	    s/^\[.*]\s*//;
710            print OUTFILE "../$_.h\n";
711	    push @temp_headers, "../$_.h";
712	    $gettext_code = &TextFile_DetermineEncoding ("../$_.h") if ($gettext_support_nonascii and not defined $forced_gettext_code);
713	}
714	else
715	{
716            print OUTFILE "$SRCDIR/../$_\n";
717	    $gettext_code = &TextFile_DetermineEncoding ("$SRCDIR/../$_") if ($gettext_support_nonascii and not defined $forced_gettext_code);
718	}
719
720	next if (! $gettext_support_nonascii);
721
722	if (defined $forced_gettext_code)
723	{
724	    $encoding=$forced_gettext_code;
725	}
726	elsif (defined $gettext_code and "$encoding" ne "$gettext_code")
727	{
728	    if ($encoding eq "ASCII")
729	    {
730		$encoding=$gettext_code;
731	    }
732	    elsif ($gettext_code ne "ASCII")
733	    {
734		# Only report once because the message is quite long
735		if (! $encoding_problem_is_reported)
736		{
737		    print STDERR "WARNING: You should use the same file encoding for all your project files,\n".
738				 "         but $PROGRAM thinks that most of the source files are in\n".
739				 "         $encoding encoding, while \"$_\" is (likely) in\n".
740		       		 "         $gettext_code encoding. If you are sure that all translatable strings\n".
741				 "         are in same encoding (say UTF-8), please \e[1m*prepend*\e[0m the following\n".
742				 "         line to POTFILES.in:\n\n".
743				 "                 [encoding: UTF-8]\n\n".
744				 "         and make sure that configure.in/ac checks for $PACKAGE >= 0.27 .\n".
745				 "(such warning message will only be reported once.)\n";
746		    $encoding_problem_is_reported = 1;
747		}
748	    }
749	}
750    }
751
752    close OUTFILE;
753    close INFILE;
754
755    unlink "$MODULE.pot";
756    my @xgettext_argument=("$XGETTEXT",
757			   "--add-comments",
758			   "--directory\=.",
759                           "--default-domain\=$MODULE",
760                           "--flag\=g_strdup_printf:1:c-format",
761                           "--flag\=g_string_printf:2:c-format",
762                           "--flag\=g_string_append_printf:2:c-format",
763                           "--flag\=g_error_new:3:c-format",
764                           "--flag\=g_set_error:4:c-format",
765                           "--flag\=g_markup_printf_escaped:1:c-format",
766                           "--flag\=g_log:3:c-format",
767                           "--flag\=g_print:1:c-format",
768                           "--flag\=g_printerr:1:c-format",
769                           "--flag\=g_printf:1:c-format",
770                           "--flag\=g_fprintf:2:c-format",
771                           "--flag\=g_sprintf:2:c-format",
772                           "--flag\=g_snprintf:3:c-format",
773                           "--flag\=g_scanner_error:2:c-format",
774                           "--flag\=g_scanner_warn:2:c-format",
775			   "--output\=$MODULE\.pot",
776			   "--files-from\=\.\/POTFILES\.in\.temp");
777    my $XGETTEXT_KEYWORDS = &FindPOTKeywords;
778    push @xgettext_argument, $XGETTEXT_KEYWORDS;
779    my $MSGID_BUGS_ADDRESS = &FindMakevarsBugAddress;
780    push @xgettext_argument, "--msgid-bugs-address\=$MSGID_BUGS_ADDRESS" if $MSGID_BUGS_ADDRESS;
781    push @xgettext_argument, "--from-code\=$encoding" if ($gettext_support_nonascii);
782    push @xgettext_argument, $XGETTEXT_ARGS if $XGETTEXT_ARGS;
783    my $xgettext_command = join ' ', @xgettext_argument;
784
785    # intercept xgettext error message
786    print "Running $xgettext_command\n" if $VERBOSE;
787    my $xgettext_error_msg = `$xgettext_command 2>\&1`;
788    my $command_failed = $?;
789
790    unlink "POTFILES.in.temp";
791
792    print "Removing generated header (.h) files..." if $VERBOSE;
793    unlink foreach (@temp_headers);
794    print "done.\n" if $VERBOSE;
795
796    if (! $command_failed)
797    {
798	if (! -e "$MODULE.pot")
799	{
800	    print "None of the files in POTFILES.in contain strings marked for translation.\n" if $VERBOSE;
801	}
802	else
803	{
804	    print "Wrote $MODULE.pot\n" if $VERBOSE;
805	}
806    }
807    else
808    {
809	if ($xgettext_error_msg =~ /--from-code/)
810	{
811	    # replace non-ASCII error message with a more useful one.
812	    print STDERR "ERROR: xgettext failed to generate PO template file because there is non-ASCII\n".
813			 "       string marked for translation. Please make sure that all strings marked\n".
814			 "       for translation are in uniform encoding (say UTF-8), then \e[1m*prepend*\e[0m the\n".
815			 "       following line to POTFILES.in and rerun $PROGRAM:\n\n".
816			 "           [encoding: UTF-8]\n\n";
817	}
818	else
819	{
820	    print STDERR "$xgettext_error_msg";
821	    if (-e "$MODULE.pot")
822	    {
823		# is this possible?
824		print STDERR "ERROR: xgettext failed but still managed to generate PO template file.\n".
825			     "       Please consult error message above if there is any.\n";
826	    }
827	    else
828	    {
829		print STDERR "ERROR: xgettext failed to generate PO template file. Please consult\n".
830			     "       error message above if there is any.\n";
831	    }
832	}
833	exit (1);
834    }
835}
836
837sub POFile_Update
838{
839    -f "$MODULE.pot" or die "$PROGRAM: $MODULE.pot does not exist.\n";
840
841    my $MSGMERGE = $ENV{"MSGMERGE"} || "msgmerge";
842    my ($lang, $outfile) = @_;
843
844    if (! isGNUGettextTool ("$MSGMERGE"))
845    {
846	print STDERR " *** GNU msgmerge is not found on this system!\n".
847		     " *** Without it, intltool-update can not extract strings.\n";
848	exit;
849    }
850
851    print "Merging $SRCDIR/$lang.po with $MODULE.pot..." if $VERBOSE;
852
853    my $infile = "$SRCDIR/$lang.po";
854    $outfile = "$SRCDIR/$lang.po" if ($outfile eq "");
855
856    # I think msgmerge won't overwrite old file if merge is not successful
857    system ("$MSGMERGE", "-o", $outfile, $infile, "$MODULE.pot");
858}
859
860sub Console_WriteError_NotExisting
861{
862    my ($file) = @_;
863
864    ## Report error if supplied language file is non-existing
865    print STDERR "$PROGRAM: $file does not exist!\n";
866    print STDERR "Try '$PROGRAM --help' for more information.\n";
867    exit;
868}
869
870sub GatherPOFiles
871{
872    my @po_files = glob ("./*.po");
873
874    @languages = map (&POFile_GetLanguage, @po_files);
875
876    foreach my $lang (@languages)
877    {
878	$po_files_by_lang{$lang} = shift (@po_files);
879    }
880}
881
882sub POFile_GetLanguage ($)
883{
884    s/^(.*\/)?(.+)\.po$/$2/;
885    return $_;
886}
887
888sub Console_Write_TranslationStatus
889{
890    my ($lang, $output_file) = @_;
891    my $MSGFMT = $ENV{"MSGFMT"} || "msgfmt";
892
893    if (! isGNUGettextTool ("$MSGFMT"))
894    {
895	print STDERR " *** GNU msgfmt is not found on this system!\n".
896		     " *** Without it, intltool-update can not extract strings.\n";
897	exit;
898    }
899
900    $output_file = "$SRCDIR/$lang.po" if ($output_file eq "");
901
902    system ("$MSGFMT", "-o", "$devnull", "--verbose", $output_file);
903}
904
905sub Console_Write_CoverageReport
906{
907    my $MSGFMT = $ENV{"MSGFMT"} || "msgfmt";
908
909    if (! isGNUGettextTool ("$MSGFMT"))
910    {
911	print STDERR " *** GNU msgfmt is not found on this system!\n".
912		     " *** Without it, intltool-update can not extract strings.\n";
913	exit;
914    }
915
916    &GatherPOFiles;
917
918    foreach my $lang (@languages)
919    {
920	print STDERR "$lang: ";
921	&POFile_Update ($lang, "");
922    }
923
924    print STDERR "\n\n * Current translation support in $MODULE \n\n";
925
926    foreach my $lang (@languages)
927    {
928	print STDERR "$lang: ";
929	system ("$MSGFMT", "-o", "$devnull", "--verbose", "$SRCDIR/$lang.po");
930    }
931}
932
933sub SubstituteVariable
934{
935    my ($str) = @_;
936
937    # always need to rewind file whenever it has been accessed
938    seek (CONF, 0, 0);
939
940    # cache each variable. varhash is global to we can add
941    # variables elsewhere.
942    while (<CONF>)
943    {
944	if (/^(\w+)=(.*)$/)
945	{
946	    ($varhash{$1} = $2) =~  s/^["'](.*)["']$/$1/;
947	}
948    }
949
950    if ($str =~ /^(.*)\${?([A-Z_]+)}?(.*)$/)
951    {
952	my $rest = $3;
953	my $untouched = $1;
954	my $sub = "";
955        # Ignore recursive definitions of variables
956        $sub = $varhash{$2} if defined $varhash{$2} and $varhash{$2} !~ /\${?$2}?/;
957
958	return SubstituteVariable ("$untouched$sub$rest");
959    }
960
961    # We're using Perl backticks ` and "echo -n" here in order to
962    # expand any shell escapes (such as backticks themselves) in every variable
963    return echo_n ($str);
964}
965
966sub CONF_Handle_Open
967{
968    my $base_dirname = getcwd();
969    $base_dirname =~ s@.*/@@;
970
971    my ($conf_in, $src_dir);
972
973    if ($base_dirname =~ /^po(-.+)?$/)
974    {
975	if (-f "Makevars")
976	{
977	    my $makefile_source;
978
979	    local (*IN);
980	    open (IN, "<Makevars") || die "can't open Makevars: $!";
981
982	    while (<IN>)
983	    {
984		if (/^top_builddir[ \t]*=/)
985		{
986		    $src_dir = $_;
987		    $src_dir =~ s/^top_builddir[ \t]*=[ \t]*([^ \t\n\r]*)/$1/;
988
989		    chomp $src_dir;
990                    if (-f "$src_dir" . "/configure.ac") {
991                        $conf_in = "$src_dir" . "/configure.ac" . "\n";
992                    } else {
993                        $conf_in = "$src_dir" . "/configure.in" . "\n";
994                    }
995		    last;
996		}
997	    }
998	    close IN;
999
1000	    $conf_in || die "Cannot find top_builddir in Makevars.";
1001	}
1002	elsif (-f "$SRCDIR/../configure.ac")
1003	{
1004	    $conf_in = "$SRCDIR/../configure.ac";
1005	}
1006	elsif (-f "$SRCDIR/../configure.in")
1007	{
1008	    $conf_in = "$SRCDIR/../configure.in";
1009	}
1010	else
1011	{
1012	    my $makefile_source;
1013
1014	    local (*IN);
1015	    open (IN, "<Makefile") || return;
1016
1017	    while (<IN>)
1018	    {
1019		if (/^top_srcdir[ \t]*=/)
1020		{
1021		    $src_dir = $_;
1022		    $src_dir =~ s/^top_srcdir[ \t]*=[ \t]*([^ \t\n\r]*)/$1/;
1023
1024		    chomp $src_dir;
1025		    $conf_in = "$src_dir" . "/configure.in" . "\n";
1026
1027		    last;
1028		}
1029	    }
1030	    close IN;
1031
1032	    $conf_in || die "Cannot find top_srcdir in Makefile.";
1033	}
1034
1035	open (CONF, "<$conf_in");
1036    }
1037    else
1038    {
1039	print STDERR "$PROGRAM: Unable to proceed.\n" .
1040		     "Make sure to run this script inside the po directory.\n";
1041	exit;
1042    }
1043}
1044
1045sub FindPackageName
1046{
1047    my $version;
1048    my $domain = &FindMakevarsDomain;
1049    my $name = $domain || "untitled";
1050
1051    &CONF_Handle_Open;
1052
1053    my $conf_source; {
1054	local (*IN);
1055	open (IN, "<&CONF") || return $name;
1056	seek (IN, 0, 0);
1057	local $/; # slurp mode
1058	$conf_source = <IN>;
1059	close IN;
1060    }
1061
1062    # priority for getting package name:
1063    # 1. GETTEXT_PACKAGE
1064    # 2. first argument of AC_INIT (with >= 2 arguments)
1065    # 3. first argument of AM_INIT_AUTOMAKE (with >= 2 argument)
1066
1067    # /^AM_INIT_AUTOMAKE\([\s\[]*([^,\)\s\]]+)/m
1068    # the \s makes this not work, why?
1069    if ($conf_source =~ /^AM_INIT_AUTOMAKE\(([^,\)]+),([^,\)]+)/m)
1070    {
1071	($name, $version) = ($1, $2);
1072	$name    =~ s/[\[\]\s]//g;
1073	$version =~ s/[\[\]\s]//g;
1074	$varhash{"PACKAGE_NAME"} = $name if (not $name =~ /\${?AC_PACKAGE_NAME}?/);
1075	$varhash{"PACKAGE"} = $name if (not $name =~ /\${?PACKAGE}?/);
1076	$varhash{"PACKAGE_VERSION"} = $version if (not $name =~ /\${?AC_PACKAGE_VERSION}?/);
1077	$varhash{"VERSION"} = $version if (not $name =~ /\${?VERSION}?/);
1078    }
1079
1080    if ($conf_source =~ /^AC_INIT\(([^,\)]+),([^,\)]+)/m)
1081    {
1082	($name, $version) = ($1, $2);
1083	$name    =~ s/[\[\]\s]//g;
1084	$version =~ s/[\[\]\s]//g;
1085	$varhash{"PACKAGE_NAME"} = $name if (not $name =~ /\${?AC_PACKAGE_NAME}?/);
1086	$varhash{"PACKAGE"} = $name if (not $name =~ /\${?PACKAGE}?/);
1087	$varhash{"PACKAGE_VERSION"} = $version if (not $name =~ /\${?AC_PACKAGE_VERSION}?/);
1088	$varhash{"VERSION"} = $version if (not $name =~ /\${?VERSION}?/);
1089    }
1090
1091    # \s makes this not work, why?
1092    $name = $1 if $conf_source =~ /^GETTEXT_PACKAGE=\[?([^\n\]]+)/m;
1093
1094    # m4 macros AC_PACKAGE_NAME, AC_PACKAGE_VERSION etc. have same value
1095    # as corresponding $PACKAGE_NAME, $PACKAGE_VERSION etc. shell variables.
1096    $name =~ s/\bAC_PACKAGE_/\$PACKAGE_/g;
1097
1098    $name = $domain if $domain;
1099
1100    $name = SubstituteVariable ($name);
1101    $name =~ s/^["'](.*)["']$/$1/;
1102
1103    return $name if $name;
1104}
1105
1106
1107sub FindPOTKeywords
1108{
1109
1110    my $keywords = "--keyword\=\_ --keyword\=N\_ --keyword\=U\_ --keyword\=Q\_";
1111    my $varname = "XGETTEXT_OPTIONS";
1112    my $make_source; {
1113	local (*IN);
1114	open (IN, "<Makevars") || (open(IN, "<Makefile.in.in") && ($varname = "XGETTEXT_KEYWORDS")) || return $keywords;
1115	seek (IN, 0, 0);
1116	local $/; # slurp mode
1117	$make_source = <IN>;
1118	close IN;
1119    }
1120
1121    $keywords = $1 if $make_source =~ /^$varname[ ]*=\[?([^\n\]]+)/m;
1122
1123    return $keywords;
1124}
1125
1126sub FindMakevarsDomain
1127{
1128
1129    my $domain = "";
1130    my $makevars_source; {
1131	local (*IN);
1132	open (IN, "<Makevars") || return $domain;
1133	seek (IN, 0, 0);
1134	local $/; # slurp mode
1135	$makevars_source = <IN>;
1136	close IN;
1137    }
1138
1139    $domain = $1 if $makevars_source =~ /^DOMAIN[ ]*=\[?([^\n\]\$]+)/m;
1140    $domain =~ s/^\s+//;
1141    $domain =~ s/\s+$//;
1142
1143    return $domain;
1144}
1145
1146sub FindMakevarsBugAddress
1147{
1148
1149    my $address = "";
1150    my $makevars_source; {
1151	local (*IN);
1152	open (IN, "<Makevars") || return undef;
1153	seek (IN, 0, 0);
1154	local $/; # slurp mode
1155	$makevars_source = <IN>;
1156	close IN;
1157    }
1158
1159    $address = $1 if $makevars_source =~ /^MSGID_BUGS_ADDRESS[ ]*=\[?([^\n\]\$]+)/m;
1160    $address =~ s/^\s+//;
1161    $address =~ s/\s+$//;
1162
1163    return $address;
1164}
1165