[bug #65858] msgfmt -c doesn't detect broken format specifiers in translations

[Vadim Zeitlin]

URL:
  <https://savannah.gnu.org/bugs/?65858>

                 Summary: msgfmt -c doesn't detect broken format specifiers in
translations
                   Group: GNU gettext
               Submitter: zeitlin
               Submitted: Sun 09 Jun 2024 01:43:22 PM CEST
                Category: Translator tools
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any


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Follow-up Comments:


-------------------------------------------------------
Date: Sun 09 Jun 2024 01:43:22 PM CEST By: Vadim Zeitlin <zeitlin>
At least "% s" (which can never work when passed to printf() or similar
function) isn't detected as an error, here is a minimal but realistic
example:

--------------------------------- >8 --------------------------------------
msgid ""
msgstr ""
"Project-Id-Version: \n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2023-02-06 16:05+0100\n"
"PO-Revision-Date: 2022-07-30 11:10+0200\n"
"Last-Translator: No Body <no.body@some.where>\n"
"Language-Team: \n"
"Language: ka\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=(n != 1);\n"

#: ../src/common/lzmastream.cpp:196
#, c-format
msgid "LZMA decompression error: %s"
msgstr "LZMA დეკომპრესიის შეცდომა: % s"
--------------------------------- >8 --------------------------------------

After saving this to ka.po the following command doesn't return any errors:

$ msgfmt -v -c -o /dev/null ka.po
1 translated message.

but it really should.

There seem to be other errors not detected by "msgfmt -c" shown by the changes
in https://github.com/wxWidgets/wxWidgets/pull/24592 but at least this one is
easily reproducible and should be easy to fix.







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