[bug #60947] Do not strip unknown PO flags

[Florent Angly]

URL:
  <https://savannah.gnu.org/bugs/?60947>

                 Summary: Do not strip unknown PO flags
                 Project: GNU gettext
            Submitted by: fangly
            Submitted on: Tue 20 Jul 2021 06:52:35 AM UTC
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

I am working with an unpublished programming language, which is not in the
list of programming languages supported by gettext
(https://www.gnu.org/software/gettext/manual/html_node/Translators-for-other-Languages.html#Translators-for-other-Languages).
My translation workflow tools add the zoe-format flag to PO messages
containing a Zoe format string, e.g.:

$ cat catalog.po
#, zoe-format, fuzzy
msgid "Hello #{name}"
msgstr "Bonjour #{name}"

But the gettext utilities unfortunately remove all unknown flags:

$ msgcat.exe catalog.po
#, fuzzy
msgid "Hello #{name}"
msgstr "Bonjour #{name}"

I see value in non-standard flags because they can be used in non-standard
workflows to support custom features and unpublished programming languages. To
support this flexibility, I suggest that gettext should leave alone all flags
that it doesn't recognize. This issue was first raised on the Poedit bug
tracker (https://github.com/vslavik/poedit/issues/708), where the author also
liked the idea.

Complementary to not removing unknown PO flags, the documentation could be
amended to describe how to implement support for published or unpublished
programming languages. This would help developers implement new languages.





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