cppcms-users

[Cppcms-users] Register textdomains at runtime

[Julian P. <ju...@wh...>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

how can I register textdomains to use with booster::locale::format()
(and translate()) at runtime?
I found the config option localization.messages.domains for the text
domains to be pre-loaded, but how can I register a domain
programmatically? Do I have to use direct calls to gettext (as I
understood, booster features its own libintl implementation, so that
won't work I think) or is there something in booster::locale to call to
register a domain?

Thanks,
Julian
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.15 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
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=CLZw
-----END PGP SIGNATURE-----

Re: [Cppcms-users] Register textdomains at runtime

[Julian P. <ju...@wh...>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Am 30.08.2010 01:43, schrieb Julian Pietron:
> Hi,
> 
> how can I register textdomains to use with booster::locale::format()
> (and translate()) at runtime?
> I found the config option localization.messages.domains for the text
> domains to be pre-loaded, but how can I register a domain
> programmatically? Do I have to use direct calls to gettext (as I
> understood, booster features its own libintl implementation, so that
> won't work I think) or is there something in booster::locale to call to
> register a domain?
> 
> Thanks,
> Julian

Ok, in meantime I found the locale::generator::add_messages_domain() and
set_default_messages_domain(), but that raised a few more questions:

- - Is it possible to remove a message domain again? (But only one and not
all message domains, so the clear_domains() method is not what I want)
- - Can I select the domain to use for basic_format::format or
locale::translate at method call somehow or do I have to call
set_default_messages_domain() on generator beforehand? If this is the
case, is this thread safe, so that I can change the
default_messages_domain even to different values for parallel requests?

Thanks,
Julian
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.15 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
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=XCUX
-----END PGP SIGNATURE-----

Re: [Cppcms-users] Register textdomains at runtime

[Artyom <art...@ya...>]

> 
> Ok, in  meantime I found the locale::generator::add_messages_domain()  and
> set_default_messages_domain(), but that raised a few more  questions:
> 
> - - Is it possible to remove a message domain again? (But only  one and not
> all message domains, so the clear_domains() method is not what I  want)

No, you can't. At least in current API.

> - - Can I select the domain to use for basic_format::format  or
> locale::translate at method call somehow or do I have to  call
> set_default_messages_domain() on generator beforehand?

Yes you can, read this:

<http://cppcms.sourceforge.net/boost_locale/html/tutorial.html#6f4922f45568161a8cdf4ad2299f6d23>


You need to use iostream manipulator booster::locale::as::domain("name")
to switch domain in the stream.

> If this is  the
> case, is this thread safe, so that I can change  the
> default_messages_domain even to different values for parallel  requests?
> 

It is not safe, actually access of any non-const member function
of booster::locale::generator is not thread safe from multiple
threads, see 

<http://cppcms.sourceforge.net/boost_locale/html/classboost_1_1locale_1_1generator.html>


However, you can always create a separate instance of 
booster::locale::generator,
create locale and install it using

http://art-blog.no-ip.info/cppcms_ref_v0_99/classcppcms_1_1http_1_1context.html#9d6ee6ce1d9007ba1c0d7222fa022fd8


Please note, loading dictionaries and creating locale objects
may be quite heavy operation, so use it very carefully.

You may cache such custom locales withing your cppcms::application derived class
that is cached in pool and not created frequently.

Artyom