#! /usr/bin/perl -w
# Command-line interface to Locale::Maketext::Gettext (and Locale::Maketext)

# Copyright (c) 2003-2021 imacat. All rights reserved. This program is free
# software; you can redistribute it and/or modify it under the same terms
# as Perl itself.
# First written: 2003/5/3

use 5.008;
use strict;
use warnings;
use Getopt::Long qw(GetOptions);
use Locale::Maketext::Gettext::Functions;
our $VERSION = 0.06;
# Prototype declaration
sub main();
sub parse_args();

our ($THIS_FILE, $SHORT_HELP, $VER_STR, $SEARCH, $HELP);
$THIS_FILE = $0;
$THIS_FILE =~ s/^.*\///;
$SHORT_HELP = "Try `$THIS_FILE --help' for more information.";
$VER_STR = "$THIS_FILE v$VERSION by imacat <imacat\@mail.imacat.idv.tw>";
$SEARCH = join " ", @Locale::Maketext::Gettext::Functions::SYSTEM_LOCALEDIRS;
$HELP = << "EOT";
Usage: maketext [OPTION] [--domain=TEXTDOMAIN] MSGKEY [PARAM...]
or:    maketext [OPTION] -s MSGKEY [PARAM...]

Maketext and display native language translation of a textual message.

  -d, --domain=TEXTDOMAIN   retrieve translated messages from TEXTDOMAIN
  -h, --help                display this help and exit
  -V, --version             display version information and exit
  MSGKEY [PARAM...]         retrieve translated message corresponding
                            to MSGKEY from TEXTDOMAIN

If the TEXTDOMAIN parameter is not given, the domain is determined from the
environment variable TEXTDOMAIN.  If the message catalog is not found in the
regular directory, another location can be specified with the environment
variable TEXTDOMAINDIR.
When used with the -s option the program adds a new line to the end of the
output so that it behaves like the `echo' or the `gettext' command.
Standard search directories: $SEARCH

Report bugs to <imacat\@mail.imacat.idv.tw>.
EOT

our ($DOMAIN, $LOCALEDIR, $ECHO, $KEY, @PARAM);
$ECHO = 0;

# Main program
main();
exit 0;

# Main program
sub main() {
    local ($_, %_);
    
    # Parse the arguments
    parse_args();
    
    bindtextdomain($DOMAIN, $LOCALEDIR)
        if defined $DOMAIN && defined $LOCALEDIR;
    textdomain($DOMAIN) if defined $DOMAIN;
    print maketext($KEY, @PARAM);
    print "\n" if $ECHO;
    
    return;
}

# Parse the arguments
sub parse_args() {
    local ($_, %_);
    
    # Get the arguments
    $_ = eval {
        local $SIG{__WARN__} = sub { die $_[0]; };
        Getopt::Long::Configure("no_auto_abbrev");
        GetOptions( "domain|d=s"=>\$DOMAIN,
                    "s"=>sub { $ECHO = 1; },
                    "help|h"=>sub { print $HELP; exit 0; },
                    "version|V"=>sub { print "$VER_STR\n"; exit 0; });
        return 1;
    };
    die "$THIS_FILE: $@" if !defined $_;
    
    # The MSGKEY
    die "$THIS_FILE: missing arguments\n" if @ARGV == 0;
    $KEY = shift @ARGV;
    @PARAM = @ARGV;
    
    # Set the locale directory
    $LOCALEDIR = $ENV{"TEXTDOMAINDIR"} if exists $ENV{"TEXTDOMAINDIR"};
    # Set the text domain
    $DOMAIN = $ENV{"TEXTDOMAIN"}
        if !defined $DOMAIN && exists $ENV{"TEXTDOMAIN"};
    
    return;
}

__END__

=head1 NAME

maketext - translate and make messages

=head1 SYNOPSIS

  maketext [OPTION] [--domain=TEXTDOMAIN] MSGKEY [PARAM...]
  maketext [OPTION] -s MSGKEY [PARAM...]

=head1 DESCRIPTION

The C<maketext> script translates a natural language message into
the user's language, by looking up the translation in a message MO
file, and process the plural transformation with Maketext.

The C<maketext> script is a command-line interface to
L<Locale::Maketext::Gettext(3)|Locale::Maketext::Gettext/3> (and
L<Locale::Maketext(3)|Locale::Maketext/3>).  It can be used in shell
scripts, etc, to translate, maketext and return the result.  By this
way, it enables Maketext to be integrated into other programming
languages/systems, like bash/csh, python, PHP, C, etc.  It works
like the command-line program gettext.

For example:

  % maketext -s "[*,_1,virus was,viruses were] found in [*,_2,file,files]." 0 1
  0 viruses were found in 1 file.
  % maketext -s "[*,_1,virus was,viruses were] found in [*,_2,file,files]." 1 3
  1 virus was found in 3 files.
  %

=head1 OPTIONS

=over

=item -d,--domain=TEXTDOMAIN

Retrieve translated messages from TEXTDOMAIN.

=item -s

Adds a new line to the end of the output so that it behaves like the
`echo' or the `gettext' command.

=item -h,--help

Display the help messages.

=item -V,--version

Display version information and exit.

=item MSGKEY

The original text used to look up translated text.

=item PARAM...

Parameters to Maketext for the plural and other text functions.

=back

=head1 ENVIRONMENT

=over

=item TEXTDOMAIN

TEXTDOMAIN is used to determine the text domain when the -d
parameter is not given.

=item TEXTDOMAINDIR

TEXTDOMAINDIR is used to search the message catalog/MO file if it
does not reside in the system locale directories.

=back

=head1 NOTES

Maketext language function override, like C<quant> or C<numerate>, is
not available here.  Suggestions are welcome.

The current system locale directory search order is:
/usr/share/locale, /usr/lib/locale, /usr/local/share/locale,
/usr/local/lib/locale.  Suggestions are welcome.

=head1 BUGS

Report bugs to imacat <imacat@mail.imacat.idv.tw>

=head1 SEE ALSO

L<Locale::Maketext(3)|Locale::Maketext/3>,
L<Locale::Maketext::TPJ13(3)|Locale::Maketext::TPJ13/3>,
L<Locale::Maketext::Gettext(3)|Locale::Maketext::Gettext/3>,
L<Locale::Maketext::Gettext::Functions(3)|Locale::Maketext::Gettext::Functions/3>,
L<bindtextdomain(3)|bindtextdomain/3>, L<textdomain(3)|textdomain/3>.
Also, please refer to the official GNU gettext manual at
L<https://www.gnu.org/software/gettext/manual/>.

=head1 AUTHOR

imacat <imacat@mail.imacat.idv.tw>

=head1 COPYRIGHT

Copyright (c) 2003-2021 imacat. All rights reserved. This program is free
software; you can redistribute it and/or modify it under the same terms
as Perl itself.

=cut