I18N::LangTags::Detect
(3)
Name
I18N::LangTags::Detect - detect the user's language preferences
Synopsis
use I18N::LangTags::Detect;
my @user_wants = I18N::LangTags::Detect::detect();
Description
Perl Programmers Reference Guide I18N::LangTags::Detect(3)
NAME
I18N::LangTags::Detect - detect the user's language preferences
SYNOPSIS
use I18N::LangTags::Detect;
my @user_wants = I18N::LangTags::Detect::detect();
DESCRIPTION
It is a common problem to want to detect what language(s) the user
would prefer output in.
FUNCTIONS
This module defines one public function,
"I18N::LangTags::Detect::detect()". This function is not exported (nor
is even exportable), and it takes no parameters.
In scalar context, the function returns the most preferred language tag
(or undef if no preference was seen).
In list context (which is usually what you want), the function returns
a (possibly empty) list of language tags representing (best first) what
languages the user apparently would accept output in. You will
probably want to pass the output of this through
"I18N::LangTags::implicate_supers_tightly(...)" or
"I18N::LangTags::implicate_supers(...)", like so:
my @languages =
I18N::LangTags::implicate_supers_tightly(
I18N::LangTags::Detect::detect()
);
ENVIRONMENT
This module looks at several environment variables: REQUEST_METHOD,
HTTP_ACCEPT_LANGUAGE, LANGUAGE, LC_ALL, LC_MESSAGES, and LANG.
It will also use the Win32::Locale module, if it's installed and
IGNORE_WIN32_LOCALE is not set to a true value in the environment.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+-----------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------------+
|Availability | runtime/perl-532 |
+---------------+-----------------------+
|Stability | Pass-through volatile |
+---------------+-----------------------+
SEE ALSO
I18N::LangTags, Win32::Locale, Locale::Maketext.
(This module's core code started out as a routine in Locale::Maketext;
but I moved it here once I realized it was more generally useful.)
COPYRIGHT
Copyright (c) 1998-2004 Sean M. Burke. All rights reserved.
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
The programs and documentation in this dist are distributed in the hope
that they will be useful, but without any warranty; without even the
implied warranty of merchantability or fitness for a particular
purpose.
AUTHOR
Sean M. Burke "sburke@cpan.org"
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
http://www.cpan.org/src/5.0/perl-5.32.0.tar.gz.
Further information about this software can be found on the open source
community website at https://www.perl.org/.
perl v5.32.0 2020-06-14 I18N::LangTags::Detect(3)