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POUsing Babel: How to protect translator comments (and old translations) in GNU gettext PO files?
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copied!<p>With the Python-based <a href="http://babel.pocoo.org/" rel="nofollow noreferrer">Babel</a> gettext utilities, are there any techniques to preserve translator comments and old ("obsolete") translations (marked with <code>#~</code>) in <code>.po</code> files across updates from the <code>.pot</code> file?</p> <p>The first time an obsolete translation is in a <code>.po</code> file, and <code>pybabel update</code> is run, the translation is marked with <code>#~</code>. This is so that on the one hand, it is treated as a comment and not used until a translator looks it over and changes it, yet on the other hand, it is not removed, so a translator can refer to it, or copy text from it into their other translations.</p> <p>However, the next time <code>pybabel update</code> is run, all comments are permanently removed from the file. This means those translations marked with <code>#~</code> are removed, too.</p> <p>For example, with Babel version 0.9.6 and <a href="http://jinja.pocoo.org/" rel="nofollow noreferrer">Jinja2</a> version 2.6, and the following files:</p> <p><strong><code>./babel.ini</code></strong>:</p> <pre><code>[jinja2: **/templates/**.html] encoding = utf-8 </code></pre> <p><strong><code>./templates/test.html</code></strong>:</p> <pre><code><html><body> <h1>{% trans %}My website{% endtrans %}</h1> </body></html> </code></pre> <p><strong><code>./i18n/pt_PT/LC_MESSAGES/messages.po</code></strong>:</p> <pre><code># ... header stuff generated from # pybabel init -l pt_PT -d i18n -i i18n/messages.pot ... # Don't forget, I want to remember something about this! #~ msgid "My web page" #~ msgstr "A minha página de web" </code></pre> <p>After the following commands are run:</p> <pre><code>$ pybabel extract -F babel.ini -o i18n/messages.pot . $ pybabel update -l pt_PT -d i18n -i i18n/messages.pot </code></pre> <p>The Portuguese <code>messages.po</code> file loses all its old comments, and contains only:</p> <p><strong><code>./i18n/pt_PT/LC_MESSAGES/messages.po</code></strong>:</p> <pre><code># ... similar header stuff ... #: templates/test.html:2 msgid "My web site" msgstr "" </code></pre> <p>How can I update my translation files without losing my comments and old translations?</p>

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