Pull strings from a variety of sources, collapse whitespace, support context (msgctxt), and merging .pot files.
Project description
Tower provides some additional functionality to Jinja and it’s i18n extension, and the Babel library.
Author: Wil Clouser and contributors
Licence: BSD
Compatibility: Python 2.6 and 2.7, Django 1.4, 1.5 and 1.6
Requirements: django, babel, jinja2, jingo and translate-toolkit
Project URL: https://github.com/clouserw/tower
Documentation: http://tower.readthedocs.org/en/latest/
Specifics:
Pulls strings from a variety of sources: Python, JavaScript, and .lhtml files.
Collapses whitespace in all strings to prevent unwieldy msgids.
Supports Gettext context (msgctxt) in all gettext, and ngettext calls.
Supports merging PHP and Python .pot files. This is temporary. If you want to support that for an extended time look at phppo2pypo in the Translate Toolkit.
Requirements
Django
Babel
Jinja2 and Jingo
translate-toolkit
See requirements.txt for details.
Installation
Install from pypi with:
pip install tower
Source code is at http://github.com/clouserw/tower.
Install from GitHub with:
pip install -e git://github.com/clouserw/tower.git#egg=tower
Configure
Add to INSTALLED_APPS in your Django settings file:
INSTALLED_APPS = ( # ... 'tower', # ... )
Then configure.
django.conf.settings.DOMAIN_METHODS
Default: None–you must set this.
The value is a dict of domain to file spec and extraction method tuples.
For example, this creates a domain “messages” and in that domain extracts all the l10n strings from .py and .html files:
DOMAIN_METHODS = { 'messages': [ ('fjord/**.py', 'tower.tools.extract_tower_python'), ('fjord/**.html', 'tower.tools.extract_tower_template'), ] }Use tower.tools.extract_tower_python for Python files and tower.tools.extract_tower_template for Jinja2 templates.
The l10n strings will be saved in a .pot file with the name of the domain. In the above example, it’d be messages.pot.
django.conf.settings.STANDALONE_DOMAINS
Default: ['messages']
By default, all domains specified in DOMAIN_METHODS get merged into one big .pot file. If you don’t want that, you can specify which domains get their own .pot file with STANDALONE_DOMAINS.
django.conf.settings.TOWER_KEYWORDS
TODO: Document this.
django.conf.settings.TOWER_ADD_HEADERS
Default: False
If you have trouble extracting strings with Tower, try setting this to True.
django.conf.settings.ROOT
This points to the source code directory where you want your locale/ directory to be.
django.conf.settings.path
This is a function that takes arbitrary set of args and combines them with ROOT to form a new path.
Example:
import os # The settings file is in fjord/fjord/settings/base.py. From # base, up two directories is the initial fjord directory # which is where all the source code and the fjord Django # project are. ROOT = os.path.dirname(os.path.dirname(__file__)) path = lambda *args: os.path.abspath(os.path.join(ROOT, *args))
Usage
Extract:
./manage.py extract
Merge:
./manage.py merge
A note on whitespace
When tower extracts strings, it collapses whitespace. This makes it easier for localizers. It also means you need to use ugettext, ungettext, ugettext_lazy and ungettext_lazy from tower. Otherwise the msgids being passed in won’t have their whitespace stripped and thus won’t match anything in your .mo file.
A note on safe-ness
L10n strings are marked “safe” for Jinja2 automatically, so they will not be HTML-escaped:
{{ _('Hello <strong>World</strong>') }}
This works as expected. When interpolating into an L10n string, however, it will be marked as “unsafe” and escaped, unless you use jingo’s |fe() helper (which will escape the arguments but not the string they are interpolated into). Like this:
{{ _('Hello <strong>{0}</strong>')|fe(user.nickname) }}
Run tests
Run:
python run_tests.py
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