intltool-update.in

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#!@INTLTOOL_PERL@ -w

#
#  The Intltool Message Updater
#
#  Copyright (C) 2000-2002 Free Software Foundation.
#
#  Intltool is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License 
#  version 2 published by the Free Software Foundation.
#
#  Intltool 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.
#
#  As a special exception to the GNU General Public License, if you
#  distribute this file as part of a program that contains a
#  configuration script generated by Autoconf, you may include it under
#  the same distribution terms that you use for the rest of that program.
#
#  Authors: Kenneth Christiansen <[e-mail]>
#           Maciej Stachowiak
#           Darin Adler <[e-mail]>

## Release information
my $PROGRAM = "intltool-update";
my $VERSION = "0.22";
my $PACKAGE = "intltool";

## Loaded modules
use strict;
use Getopt::Long;
use Cwd;
use File::Copy;
use File::Find;

## Scalars used by the option stuff
my $HELP_ARG 	   = 0;
my $VERSION_ARG    = 0;
my $DIST_ARG	   = 0;
my $POT_ARG	   = 0;
my $HEADERS_ARG    = 0;
my $MAINTAIN_ARG   = 0;
my $REPORT_ARG     = 0;
my $VERBOSE	   = 0;
my $GETTEXT_PACKAGE = "";

my @languages;
my %po_files_by_lang = ();

# Regular expressions to categorize file types.
# FIXME: Please check if the following is correct

my $xml_extension =
"xml(\.in)*|".		# .in is not required
"ui|".
"glade2?(\.in)*|".	# .in is not required
"scm(\.in)*|".		# .in is not required
"oaf(\.in)+|".
"etspec|".
"sheet(\.in)+|".
"schemas(\.in)+|".
"pong(\.in)+";

my $ini_extension =
"desktop(\.in)+|".
"caves(\.in)+|". 
"directory(\.in)+|".
"soundlist(\.in)+|".
"keys(\.in)+|".
"server(\.in)+";

## Always print as the first thing
$| = 1;

## Handle options
GetOptions 
(
 "help" 	       => \$HELP_ARG,
 "version" 	       => \$VERSION_ARG,
 "dist|d"	       => \$DIST_ARG,
 "pot|p"	       => \$POT_ARG,
 "headers|s"	       => \$HEADERS_ARG,
 "maintain|m"	       => \$MAINTAIN_ARG,
 "report|r"	       => \$REPORT_ARG,
 "verbose|x"	       => \$VERBOSE,
 "gettext-package|g=s" => \$GETTEXT_PACKAGE,
 ) or &print_error_invalid_option;

&print_help if $HELP_ARG;
&print_version if $VERSION_ARG;

my $arg_count = ($DIST_ARG > 0)
    + ($POT_ARG > 0)
    + ($HEADERS_ARG > 0)
    + ($MAINTAIN_ARG > 0)
    + ($REPORT_ARG > 0);
&print_help if $arg_count > 1;

# --version and --help don't require a module name
my $MODULE = $GETTEXT_PACKAGE || &find_package_name;

if ($DIST_ARG) {
    if ($ARGV[0] =~ /^[a-z]/){
        &update_po_file ($ARGV[0]);
        &print_status ($ARGV[0]);
    } else {
        &print_help;
    }
} elsif ($POT_ARG) {
    &generate_headers;
    &generate_po_template;
} elsif ($HEADERS_ARG) {
    &generate_headers;
} elsif ($MAINTAIN_ARG) {
    &find_leftout_files;
} elsif ($REPORT_ARG) {
    &print_report;
} else {
    if ($ARGV[0] =~ /^[a-z]/) {
        &main ($ARGV[0]);
    } else {
        &print_help;
    }
}

exit;

#########

sub print_version
{
    ## Print version information
    print "${PROGRAM} (${PACKAGE}) $VERSION\n";
    print "Written by Kenneth Christiansen, Maciej Stachowiak, and Darin Adler.\n\n";
    print "Copyright (C) 2000-2002 Free Software Foundation, Inc.\n";
    print "This is free software; see the source for copying conditions.  There is NO\n";
    print "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n";
    exit;
}

sub print_help
{
    ## Print usage information
    print "Usage: ${PROGRAM} [OPTIONS] ...LANGCODE\n";
    print "Updates PO template files and merge them with the translations.\n\n";
    print "  -p, --pot              generate the PO template only\n";
    print "  -s, --headers          generate the header files in POTFILES.in\n";
    print "  -m, --maintain         search for left out files from POTFILES.in\n";
    print "  -r, --report           display a status report for the module.\n";
    print "  -x, --verbose          display lots of feedback\n";
    print "      --help             display this help and exit\n";
    print "      --version          output version information and exit\n";
    print "\nExamples of use:\n";
    print "${PROGRAM} --pot    just creates a new PO template from the source\n";
    print "${PROGRAM} da       created new PO template and updated the da.po file\n\n";
    print "Report bugs to bugzilla.gnome.org, module 'intltool'.\n";
    exit;
}

sub main
{
    my ($lang) = @_;

    ## Report error if the language file supplied
    ## to the command line is non-existent
    &print_error_not_existing("$lang.po") if ! -s "$lang.po";

    print "Working, please wait..." unless $VERBOSE;
    &generate_headers;
    &generate_po_template;
    &update_po_file ($lang);
    &print_status ($lang);
}

sub determine_type ($) 
{
   my $type = $_;
   my $gettext_type;

   # FIXME: Use $xml_extentions, and maybe do all this even nicer
   my $xml_regex = 
       "(?:xml(\.in)*|ui|oaf(?:\.in)+|server(?:\.in)+|sheet(?:\.in)+|".
       "pong(?:\.in)+|etspec|schemas(?:\.in)+)";
   my $ini_regex =
       "(?:desktop(?:\.in)+|caves(?:\.in)+|directory(?:\.in)+|".
       "soundlist(?:\.in)+)";

   if ($type =~ /\[type: gettext\/([^\]].*)]/) {
        $gettext_type=$1;
   }
   elsif ($type =~ /schemas(\.in)+$/) {
        $gettext_type="schemas";
   }
   elsif ($type =~ /$xml_regex$/) {
        $gettext_type="xml";
   }
   elsif ($type =~ /glade2?(\.in)*$/) {
        $gettext_type="glade";
   }
   elsif ($type =~ /$ini_regex$/) { 
        $gettext_type="ini";
   }
   elsif ($type =~ /scm(\.in)*$/) {
        $gettext_type="scheme";
   }
   elsif ($type =~ /keys(\.in)+$/) {
        $gettext_type="keys";
   }
   else { $gettext_type=""; }

   return "gettext\/$gettext_type";
}

sub find_leftout_files
{
    my (@buf_i18n_plain,
	@buf_i18n_xml,
	@buf_i18n_xml_unmarked,
	@buf_i18n_ini,
	@buf_potfiles,
	@buf_potfiles_ignore,
	@buf_allfiles,
	@buf_allfiles_sorted,
	@buf_potfiles_sorted
    );

    ## Search and find all translatable files
    find sub { 
	push @buf_i18n_plain, "$File::Find::name" if /\.(c|y|cc|cpp|c\+\+|h|gob)$/ 
	}, "..";
    find sub { 
	push @buf_i18n_xml, "$File::Find::name" if /\.($xml_extension)$/ 
	}, "..";
    find sub {
	push @buf_i18n_ini, "$File::Find::name" if /\.($ini_extension)$/ 
	}, "..";
    find sub {
        push @buf_i18n_xml_unmarked, "$File::Find::name" if /\.(schemas(\.in)+)$/
        }, "..";


    open POTFILES, "POTFILES.in" or die "$PROGRAM:  there's no POTFILES.in!\n";

    @buf_potfiles = grep /^[^#]/, <POTFILES>;
			    
    print "Searching for missing translatable files...\n" if $VERBOSE;

    ## Check if we should ignore some found files, when
    ## comparing with POTFILES.in
    foreach my $ignore ("POTFILES.skip", "POTFILES.ignore") {
        if (-s $ignore) {
            open FILE, $ignore;
            while (<FILE>) {
                if (/^[^#]/){
                    push @buf_potfiles_ignore, $_;
                }
            }
	    print "Found $ignore: Ignoring files...\n" if $VERBOSE;
            @buf_potfiles = (@buf_potfiles_ignore, @buf_potfiles);
        }
    }

    foreach my $file (@buf_i18n_plain)
      {
        my $in_comment = 0;
	my $in_macro = 0;

        open FILE, "<$file";
        while (<FILE>)
	  {
	    # Handle continued multi-line comment.
	    if ($in_comment)
	      {
		next unless s-.*\*/--;
		$in_comment = 0;
	      }

	    # Handle continued macro.
	    if ($in_macro)
	      {
		$in_macro = 0 unless /\\$/;
		next;
	      }

	    # Handle start of macro (or any preprocessor directive).
	    if (/^\s*\#/)
	      {
		$in_macro = 1 if /^([^\\]|\\.)*\\$/;
		next;
	      }

	    # Handle comments and quoted text.
	    while (m-(/\*|//|\'|\")-) # \' and \" keep emacs perl mode happy
	      {
		my $match = $1;
		if ($match eq "/*")
		  {
		    if (!s-/\*.*?\*/--)
		      {
			s-/\*.*--;
			$in_comment = 1;
		      }
		  }
		elsif ($match eq "//")
		  {
		    s-//.*--;
		  }
		else # ' or "
		  {
		    if (!s-$match([^\\]|\\.)*?$match-QUOTEDTEXT-)
		      {
			warn "mismatched quotes at line $. in $file\n";