Locale::Maketext::Lexicon(3pm) - phpMan

Locale::Maketext::Lexicon(3pm) User Contributed Perl Documentation Locale::Maketext::Lexicon(3pm)

NAME
Locale::Maketext::Lexicon - Use other catalog formats in Maketext

VERSION
version 1.00

SYNOPSIS
As part of a localization class, automatically glob for available lexicons:

package Hello::I18N;
use base 'Locale::Maketext';
use Locale::Maketext::Lexicon {
'*' => [Gettext => '/usr/local/share/locale/*/LC_MESSAGES/hello.mo'],
### Uncomment to fallback when a key is missing from lexicons
# _auto => 1,
### Uncomment to decode lexicon entries into Unicode strings
# _decode => 1,
### Uncomment to load and parse everything right away
# _preload => 1,
### Uncomment to use %1 / %quant(%1) instead of [_1] / [quant, _1]
# _style => 'gettext',
};

Explicitly specify languages, during compile- or run-time:

package Hello::I18N;
use base 'Locale::Maketext';
use Locale::Maketext::Lexicon {
de => [Gettext => 'hello_de.po'],
fr => [
Gettext => 'hello_fr.po',
Gettext => 'local/hello/fr.po',
],
};
# ... incrementally add new lexicons
Locale::Maketext::Lexicon->import({
de => [Gettext => 'local/hello/de.po'],
})

Alternatively, as part of a localization subclass:

package Hello::I18N::de;
use base 'Hello::I18N';
use Locale::Maketext::Lexicon (Gettext => \*DATA);
__DATA__
# Some sample data
msgid ""
msgstr ""
"Project-Id-Version: Hello 1.3.22.1\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=iso8859-1\n"
"Content-Transfer-Encoding: 8bit\n"

#: Hello.pm:10
msgid "Hello, World!"
msgstr "Hallo, Welt!"

#: Hello.pm:11
msgid "You have %quant(%1,piece) of mail."
msgstr "Sie haben %quant(%1,Poststueck,Poststuecken)."

DESCRIPTION
This module provides lexicon-handling modules to read from other localization formats,
such as Gettext, Msgcat, and so on.

If you are unfamiliar with the concept of lexicon modules, please consult Locale::Maketext
and the "webl10n" HTML files in the "docs/" directory of this module.

A command-line utility xgettext.pl is also installed with this module, for extracting
translatable strings from source files.

The "import" function
The "import()" function accepts two forms of arguments:

(format => source ... )
This form takes any number of argument pairs (usually one); source may be a file name,
a filehandle, or an array reference.

For each such pair, it pass the contents specified by the second argument to
Locale::Maketext::Lexicon::format->parse as a plain list, and export its return value
as the %Lexicon hash in the calling package.

In the case that there are multiple such pairs, the lexicon defined by latter ones
overrides earlier ones.

{ language => [ format, source ... ] ... }
This form accepts a hash reference. It will export a %Lexicon into the subclasses
specified by each language, using the process described above. It is designed to
alleviate the need to set up a separate subclass for each localized language, and just
use the catalog files.

This module will convert the language arguments into lowercase, and replace all "-"
with "_", so "zh_TW" and "zh-tw" will both map to the "zh_tw" subclass.

If language begins with "_", it is taken as an option that controls how lexicons are
parsed. See "Options" for a list of available options.

The "*" is a special language; it must be used in conjunction with a filename that
also contains "*"; all matched files with a valid language code in the place of "*"
will be automatically prepared as a lexicon subclass. If there is multiple "*" in the
filename, the last one is used as the language name.

Options
"_auto"
If set to a true value, missing lookups on lexicons are handled silently, as if an
"Auto" lexicon has been appended on all language lexicons.

"_decode"
If set to a true value, source entries will be converted into utf8-strings (available
in Perl 5.6.1 or later). This feature needs the Encode or Encode::compat module.

Currently, only the "Gettext" backend supports this option.

"_encoding"
This option only has effect when "_decode" is set to true. It specifies an encoding
to store lexicon entries, instead of utf8-strings.

If "_encoding" is set to "locale", the encoding from the current locale setting is
used.

"_preload"
By default parsing is delayed until first use of the lexicon, set this option to true
value to parse it asap. Increment adding lexicons forces parsing.

Subclassing format handlers
If you wish to override how sources specified in different data types are handled, please
use a subclass that overrides "lexicon_get_TYPE".

XXX: not documented well enough yet. Patches welcome.

VERSION
This document describes version 0.91 of Locale::Maketext::Lexicon.

NOTES
When you attempt to localize an entry missing in the lexicon, Maketext will throw an
exception by default. To inhibit this behaviour, override the "_AUTO" key in your
language subclasses, for example:

$Hello::I18N::en::Lexicon{_AUTO} = 1; # autocreate missing keys

If you want to implement a new "Lexicon::*" backend module, please note that "parse()"
takes an array containing the source strings from the specified filehandle or filename,
which are not "chomp"ed. Although if the source is an array reference, its elements will
probably not contain any newline characters anyway.

The "parse()" function should return a hash reference, which will be assigned to the
typeglob (*Lexicon) of the language module. All it amounts to is that if the returned
reference points to a tied hash, the %Lexicon will be aliased to the same tied hash if it
was not initialized previously.

ACKNOWLEDGMENTS
Thanks to Jesse Vincent for suggesting this module to be written.

Thanks also to Sean M. Burke for coming up with Locale::Maketext in the first place, and
encouraging me to experiment with alternative Lexicon syntaxes.

Thanks also to Yi Ma Mao for providing the MO file parsing subroutine, as well as
inspiring me to implement file globbing and transcoding support.

See the AUTHORS file in the distribution for a list of people who have sent helpful
patches, ideas or comments.

SEE ALSO
xgettext.pl for extracting translatable strings from common template systems and perl
source files.

Locale::Maketext, Locale::Maketext::Lexicon::Auto, Locale::Maketext::Lexicon::Gettext,
Locale::Maketext::Lexicon::Msgcat, Locale::Maketext::Lexicon::Tie

AUTHORS
Audrey Tang <cpan AT audreyt.org>

This software is released under the MIT license cited below.

The "MIT" License
Permission is hereby granted, free of charge, to any person obtaining a copy of this
software and associated documentation files (the "Software"), to deal in the Software
without restriction, including without limitation the rights to use, copy, modify, merge,
publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or
substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.

AUTHORS
o Clinton Gormley <drtech AT cpan.org>

o Audrey Tang <cpan AT audreyt.org>

This is free software, licensed under:

The MIT (X11) License

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