Usually we write translation expressions as `{{t ... }}`, but `{{ t ... }}`
is equally valid as far as Handlebars is concerned, and it matches how we
usually write simple variable substitutions, as `{{ ... }}`. So occasionally
someone writes `{{ t ... }}`; currently there are two examples of this
in the codebase, in `settings/bot-{settings,list-admin}.handlebars`.
Probably it'd be good to pick a style and enforce it uniformly, but
until we do, the other style shouldn't break translation.
Now REs have moved to template module. This commit adds a condition
to use trans_real module if the Django version is less than 1.11 else
use template module.
Some Handlebars strings contained whitespaces characters at their ends.
With this, such characters are removed, as well as multiple spaces
(like the ones produced by code indentation).
This also includes a couple of fixes that removes spaces that were
intentionally placed before/after the string to translate.
This results in a substantial performance improvement for all of
Zulip's backend templates.
Changes in templates:
- Change `block.super` to `super()`.
- Remove `load` tag because Jinja2 doesn't support it.
- Use `minified_js()|safe` instead of `{% minified_js %}`.
- Use `compressed_css()|safe` instead of `{% compressed_css %}`.
- `forloop.first` -> `loop.first`.
- Use `{{ csrf_input }}` instead of `{% csrf_token %}`.
- Use `{# ... #}` instead of `{% comment %}`.
- Use `url()` instead of `{% url %}`.
- Use `_()` instead of `{% trans %}` because in Jinja `trans` is a block tag.
- Use `{% trans %}` instead of `{% blocktrans %}`.
- Use `{% raw %}` instead of `{% verbatim %}`.
Changes in tools:
- Check for `trans` block in `check-templates` instead of `blocktrans`
Changes in backend:
- Create custom `render_to_response` function which takes `request` objects
instead of `RequestContext` object. There are two reasons to do this:
1. `RequestContext` is not compatible with Jinja2
2. `RequestContext` in `render_to_response` is deprecated.
- Add Jinja2 related support files in zproject/jinja2 directory. It
includes a custom backend and a template renderer, compressors for js
and css and Jinja2 environment handler.
- Enable `slugify` and `pluralize` filters in Jinja2 environment.
Fixes#620.
Vishnu Ks
Umair Khan
Greg Price
Aditya Bansal
Yago González
anirudhjain75
Sidhant Bhavnani
Brock Whittaker
Taranjeet Singh
Tim Abbott
Eklavya Sharma