#

# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

# All rights reserved.

# This component and the accompanying materials are made available

# under the terms of the License "Eclipse Public License v1.0"

# which accompanies this distribution, and is available

# at the URL "http://www.eclipse.org/legal/epl-v10.html".

#

# Initial Contributors:

# Nokia Corporation - initial contribution.

#

# Contributors:

#

# Description:

# Adds a LOCALISE macro that enables configuration of localised files.

# The localised language selection is done with a LANGUAGE_CODE macro.

#

###############################################################################

#

# Syntax: LOCALISE

#   type=LOCALISE(source, target[, languages])

#   source => the source file. The section that needs to be localised should be marked with ??.

#   target => the target file. The section that needs to be localised should be marked with ??.

#   languages => a space delimited list of language codes

#

# Syntax: LANGUAGE_CODE

#   LANGUAGE_CODE lang

#

# Example:

# Add languages

# LANGUAGE_CODE 01

# LANGUAGE_CODE 02

# LANGUAGE_CODE 03

#

# Use Case 1:

# Localises a App resoure file.

#   data=LOCALISE(APP_RESOURCE_DIR\App.r??, RESOURCE_DIR\app.r??)

# Output:

#   data=APP_RESOURCE_DIR\App.r01 RESOURCE_DIR\app.r01

#   data=APP_RESOURCE_DIR\App.r02 RESOURCE_DIR\app.r02

#   data=APP_RESOURCE_DIR\App.r03 RESOURCE_DIR\app.r03

#

# Use Case 2:

# Localise all resource files under a section

# LANGUAGE_CODE 01

# LANGUAGE_CODE 02

# LANGUAGE_CODE 03

#

# LOCALISE_ALL_RESOURCES_BEGIN

# // All resource files will be localised

# data=APP_RESOURCE_DIR\App.rsc RESOURCE_DIR\app.rsc

# data=APP_RESOURCE_DIR\App2.rsc RESOURCE_DIR\app2.rsc

# LOCALISE_ALL_RESOURCES_END

# Output:

#   data=APP_RESOURCE_DIR\App.r01 RESOURCE_DIR\app.r01

#   data=APP_RESOURCE_DIR\App.r02 RESOURCE_DIR\app.r02

#   data=APP_RESOURCE_DIR\App.r03 RESOURCE_DIR\app.r03

#   data=APP_RESOURCE_DIR\App.r01 RESOURCE_DIR\app.r01

#   data=APP_RESOURCE_DIR\App.r02 RESOURCE_DIR\app.r02

#   data=APP_RESOURCE_DIR\App.r03 RESOURCE_DIR\app.r03

#

###############################################################################

package localise;

use strict;

use localise_all_resources;

BEGIN

  {

  use Exporter ();

  our ( $VERSION, @ISA, @EXPORT );

  # set the version for version checking

  $VERSION     = 1.00;

  @ISA         = qw( Exporter );

  @EXPORT      = qw( &localise_info

                     &do_localise_extension

                     &convert_lang

                     &trim

                     &is_addlanguage_entry

                     &get_lang_from_addlanguage_entry

                     &is_localise_entry

                     &get_type_from_localise_entry

                     &get_source_from_localise_entry

                     &get_target_from_localise_entry

                     &get_langs_from_localise_entry

                     &parse_component_langs

                     &expand_localise_macro

                     &is_language_in_component_langs

                      );

  }

my %localise_infostruct =

  (

  name => "localise",

  invocation => "InvocationPoint1",

  single => "localise::do_localise_extension"

  );

my $line;

my @newobydata;

my %languages;

my $verbose=0;

my $errors=0;

my $localise_all_resource=0;

my %qt_langs = ();

sub localise_info

  {

  return \%localise_infostruct;

  }

# Entry point for the plugi

sub do_localise_extension

{

  print "========================== Begin do_localise_extension =======================\n" if $verbose;

  my $obydata = shift;

  do_localise_all_resources_extension(\@{$obydata});

  undef @newobydata;

  foreach $line (@{$obydata})

  {

    # LANGUAGE_CODE xx

    if (is_addlanguage_entry($line))

    {

      my $code = get_lang_from_addlanguage_entry($line);

      if ($code !~ /^\w\w+$/)

      {

        print "ERROR: bad default language code $code";

        #$errors++;

        next;

      }

      else

      {

        print "adding language $code\n" if $verbose;

        $languages{$code} = 1;

        push @newobydata, $line;

        next;

      }

    }

    # Ignore REM statements, to avoid processing "REM __SCALABLE_IMAGE( ... )"

    if ($line =~ /^\s*REM/i)

    {

      push @newobydata, $line;

      next;

    }

    # Read QT to Symbian language id mappings

    if ($line =~ /^\s*QT_TO_SYMBIAN_LANGID\s+(.+?)\s*$/i)

    {

      push(@newobydata, "REM handled $line");

      open(FILE, $1) or

          die("ERROR: localise.pm can't open QT to Symbian language id mapping file `$1'\n");

      map {

          $qt_langs{$2} = $1 if (!/^\s*#/ && /^\s*(\S+?)\s*=\s*(\d+)\s*$/);

      } <FILE>;

      close(FILE);

      next;

    }

    # LOCALISE macro

    if (is_localise_entry($line))

    {

      my @newdata = expand_localise_macro($line,\%languages);

      push @newobydata, @newdata;

      next;

    }

    # Default case

    push @newobydata, $line;

  }

  @{$obydata} = @newobydata;

  print "========================== End do_localise_extension =======================\n" if $verbose;

  #Stop image creation in error case

  #exit(1) if ($errors);

}

sub expand_localise_macro

{

  my $data         = $_[0];

  my %theLanguages = %{ $_[1] };

  my @localised = ();

  print "LOCALISE $data\n" if $verbose;

  my $type   = get_type_from_localise_entry($data);

  my $source = get_source_from_localise_entry($data);

  my $target = get_target_from_localise_entry($data);

  my %componentLangs = get_langs_from_localise_entry($data);

  my @languages = sort keys %theLanguages;

  foreach my $lang (@languages)

  {

    print "Language ".$lang."\n" if $verbose;

    my $sourcedata = convert_lang($source,$lang);

    my $targetdata = convert_lang($target,$lang);

    # Check does the component have overriding configurations

    # The component specific setting can define the component to ignore localisation

    if ( !is_language_in_component_langs($lang,\%componentLangs) )

    {

      #Component specific configuration overrides the global lang definitions

      print "WARNING: Component specific configuration removes this resource $source\n"  if $verbose;

      next;

    }

    my $data = "$type=$sourcedata $targetdata\n";

    print "lang data $data\n" if $verbose;

    #push the data to the new structure

    push @localised, $data;

  }

  return @localised;

}

sub is_language_in_component_langs($$)

{

  my $lang           = $_[0];

  my %componentLangs = %{ $_[1] };

  #Check whether the component langs is empty

  if ( (keys %componentLangs) > 0)

  {

    if (exists $componentLangs{ $lang })

    {

      return $componentLangs{ $lang };

    }

    else

    {

      return 0;

    }

  }

  else

  {

    return 1;

  }

}

# trim(string)

# Removes spaces from both ends of the string.

# Returns a trimmed string.

sub trim($)

{

  my $string = shift;

  $string =~ s/^\s+//;

  $string =~ s/\s+$//;

  return $string;

}

# convert_lang(string)

# convert the string ?? part to the lang specific

sub convert_lang($$)

{

  my $res = shift;

  my $lang= shift;

  my $count = ($res =~ tr/%//);

  #create array with count amount of time of lang

  my @data = ();

  for (my $i=0; $i<$count; $i++) {

    push(@data, $lang);

  }

  my $output;

  if (($res =~ m/\.qm["']?$/i) && %qt_langs)

        {

                $output = sprintf($res, $qt_langs{sprintf("%s", @data)});

        }

  else

  {

        $output = sprintf($res,@data);

        }

  return $output;

}

# match LANGUAGE_CODE 01

sub is_addlanguage_entry($)

{

  my $entry = shift;

  if ( $entry =~ m/^\s*REM\s+handled\s+LANGUAGE_CODE\s+(\S+)\s*$/i )

  {

    return 1;

  }

  return 0;

}

#

sub get_lang_from_addlanguage_entry($)

{

  my $entry = shift;

  if ( $entry =~ m/^\s*REM\s+handled\s+LANGUAGE_CODE\s+(\S+)\s*$/i )

  {

    return $1;

  }

  return "";

}

# match data=LOCALISE(foobar.rsc, resource/foobar.rsc)

sub is_localise_entry($)

{

  my $entry = shift;

  if ( $entry =~ m/^\s*\S+\s*=\s*LOCALISE(\s*(\S+),\s*(\S+))/i )

  {

    return 1;

  }

  return 0;

}

# get the type from an iby entry

sub get_type_from_localise_entry($)

{

  my $entry = shift;

  if ( $entry =~ m/^\s*(\S+)\s*=/i )

  {

    return $1;

  }

  return "";

}

# get the source file from an iby entry

sub get_source_from_localise_entry($)

{

  my $entry = shift;

  if ( $entry =~ m/^\s*(\S+)\s*=\s*LOCALISE\(\s*([^, ]+)\s*,/i )

  {

    return $2;

  }

  return "";

}

# get the target file from an iby entry

sub get_target_from_localise_entry($)

{

  my $entry = shift;

  if ( $entry =~ m/^\s*(\S+)\s*=\s*LOCALISE\(\s*([^, ]+)\s*,\s*([^, ]+)(,|\))/i )

  {

    return $3;

  }

  return "";

}

# get the target file from an iby entry

sub get_langs_from_localise_entry($)

{

  my $entry = shift;

  my %emptyhash;

  if ( $entry =~ m/^\s*(\S+)\s*=\s*LOCALISE\(\s*([^, ]+)\s*,\s*([^, ]+)\s*,\s*(.*?)\)/i )

  {

    if ($4)

    {

      return parse_component_langs($4);

    }

  }

  return %emptyhash;

}

sub parse_component_langs($)

{

  my $langs = shift;

  my %cLangs;

  foreach my $item (split(/ /,$langs))

  {

  print "lang item $item\n" if $verbose;

  if ($item =~ /^(\w\w+)$/)

    {

    print "include component specific language $1\n" if $verbose;

    $cLangs{$1} = 1;

    }

  elsif ($item =~ /^!(\w\w+)$/)

    {

    print "exclude component specific language $1\n" if $verbose;

    $cLangs{$1} = 0;

    }

  else

    {

    print "ERROR: bad default language code in $item localise macro $langs\n";

    $errors++;

    next;

    }

  }

  return %cLangs;

}

1;  # Return a true value from the file