[bug-gettext] [bug #50357] xgettext doesn't recognise encoding aliases Python supports

[Bruno Haible]

Update of bug #50357 (project gettext):

                  Status:                    None => Not a Bug              
             Assigned to:                    None => haible                 
             Open/Closed:                    Open => Closed                 

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Follow-up Comment #1:

Thanks for the report.

> xgettext should support, for Python code, the same set of aliases as Python
does.

I disagree. The set of recognised encoding names is defined by standards, in
particular by IANA. The standards define one name for this encoding, namely
"UTF-8". No alias.

Why it is not a good idea to invent new aliases for new encodings: because
then one program after the other gets requests for supporting this aliases.
And then the next program, for interoperability reasons, and so on. So the
effect of such requests is to create interoperability problems for several
years.

Btw, the web page you cited http://www.python.org/peps/pep-0263.html contains
10 mentions of "UTF-8" and 0 mentions of "UTF8".

Finally, your argument "should support ... the same set of aliases as Python
does" talks about an implementation of the Python language. But there are
several Python implementations (see
https://en.wikipedia.org/wiki/List_of_Python_software#Python_implementations
), and I bet they don't support the exact same set of encodings on all
platforms. That's why you need standards.

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