[wp-trac] [WordPress Trac] #34114: Remove the requirement to call load_plugin_textdomain() or load_theme_textdomain()

[WordPress Trac]

#34114: Remove the requirement to call load_plugin_textdomain() or
load_theme_textdomain()
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 Reporter:  johnbillion  |      Owner:
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  I18N         |    Version:
 Severity:  normal       |   Keywords:  needs-patch dev-feedback
  Focuses:               |
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 In the near future we'll start to see some plugins and themes which do not
 bundle any translations, instead relying on all translations being powered
 by language packs from translate.wordpress.org. In this situation, the
 `load_[plugin|theme]_textdomain()` call falls back to the
 `WP_LANG_DIR/[plugins|themes]` directory.

 It makes sense then that the requirement for such a plugin or theme to
 call `load_[plugin|theme]_textdomain()` could be removed, because the
 translation now lives in one of two known locations, and as long as MO
 files were loaded JIT.

 The first time core encounters a localised string with a textdomain that
 has not already been loaded, it should look for a corresponding MO file
 first in the `WP_LANG_DIR/plugins` directory and then in the
 `WP_LANG_DIR/themes` directory, and load it if it's found.

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Ticket URL: <https://core.trac.wordpress.org/ticket/34114>
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