fish-shell/doc_src/cmds/_.rst
Fabian Homborg 4785440f65
Add an "_" builtin to call into gettext (#7036)
* Add an "_" builtin to call into gettext

We already have gettext in C++ (if available), so it seems weird to
fork off a command to start it from script.

This is only for fish's own translations. There's no way to call into
other catalogs, it just translates all arguments separately.

This is faster by a factor of ~1000, which allows us to call
translations much more, especially from scripts.

E.g. making fish_greeting global by default would hurt cost-wise,
given that my fish starts up in 8ms and just calling the current `_`
function takes 2ms, and that would have two calls.

Incidentally, this also makes us rely on a weirdly defined function
less, so it:
Fixes #6804.

* docs: Add `_` docs

Let's see if that filename works out.

* Reword _ docs
2020-05-29 20:53:44 +02:00

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ReStructuredText

.. _cmd-_:
_ - call fish's translations
============================
Synopsis
--------
::
_ STRING...
Description
-----------
``_`` translates its arguments into the current language, if possible.
It is equivalent to ``gettext fish STRING``, meaning it can only be used to look up fish's own translations.
It requires fish to be built with gettext support. If that support is disabled, or there is no translation it will simply echo the argument back.
The language depends on the current locale, set with ``$LANG`` and ``$LC_MESSAGES``.
Options
-------
``_`` has no options.
Examples
--------
::
> _ File
Datei