10-26-2007
Substitute Variable
Can anyone tell me what is the purpose of a substitute variable in the unix programming language and give an example where it may be used?
Thanks!
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LEARN ABOUT DEBIAN
html::formhandler::traitfor::i18n
HTML::FormHandler::TraitFor::I18N(3pm) User Contributed Perl Documentation HTML::FormHandler::TraitFor::I18N(3pm)
NAME
HTML::FormHandler::TraitFor::I18N - localization
VERSION
version 0.40013
language_handle, _build_language_handle
Holds a Locale::Maketext (or other duck_type class with a 'maketext' method) language handle. The language handle is used to localize the
error messages in the field's 'add_error' method. It's also used in various places in rendering to localize labels and button values, etc.
The builder for this attribute gets the Locale::Maketext language handle from the environment variable $ENV{LANGUAGE_HANDLE}:
$ENV{LANGUAGE_HANDLE} = HTML::FormHandler::I18N->get_handle('en_en');
...or creates a default language handler using HTML::FormHandler::I18N. You can pass in an existing Locale::MakeText subclass instance or
create one in a builder.
In a form class:
sub _build_language_handle { MyApp::I18N::abc_de->new }
Passed into new or process:
my $lh = MyApp::I18N::abc_de->new;
my $form = MyApp::Form->new( language_handle => $lh );
If you do not set the language_handle, then Locale::Maketext and/or I18N::LangTags may guess, with unexpected results.
You can use non-Locale::Maketext language handles, such as Data::Localize. There's an example of building a Data::Localize language handle
in t/xt/locale_data_localize.t in the distribution.
If you don't want a particular error message to go through localization, you can use 'push_errors' and 'push_form_errors' instead of
'add_error' and 'add_form_errors'.
Example of getting the language handle from the Catalyst context (where the Catalyst context is passed in with 'ctx'):
has '+language_handle' => ( builder => 'get_language_handle_from_ctx' );
sub get_language_handle_from_ctx {
my $self = shift;
return MyApp::I18N->get_handle(
@{ $self->ctx->languages } );
}
AUTHOR
FormHandler Contributors - see HTML::FormHandler
COPYRIGHT AND LICENSE
This software is copyright (c) 2012 by Gerda Shank.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
perl v5.14.2 2012-06-25 HTML::FormHandler::TraitFor::I18N(3pm)