Wrong sorting order

[jsbien]

Enclosed please find the results of sorting an index with the invocation LANG=pl_PL.UTF-8 djview4poliqarp.

[jsbien]

Index used in the example.

[Michał Rudolf]

Which Qt version is this? It works correctly on Mac.

Does removing spaces from the entries fix the problem?

[jsbien]

A real life example

[jsbien]

Qt5 I guess. From compilation log:

[...] -lQt5OpenGL -lQt5Widgets -lQt5Gui -lQt5Network -lQt5Xml -lQt5Core

Which spaces do you mean?

[Michał Rudolf]

I mean removing spaces from original sort_test.csv.

To check Qt version, please try dpkg -l | grep qt5-default

[jsbien]

qt5-default:amd64 5.11.1+dfsg-6

Spaces in the sample index are needed for testing word by word order, but removing them changes nothing.

[Michał Rudolf]

Is word by word working properly? What about a tergo?

[Michał Rudolf]

Also, does command-line sort works correctly?

[jsbien]

No, always some default locale (English?) is used.

The problem seem to be related to the prefix LANG=pl_PL.UTF-8. It used to work, but now has no effect also for other tested program. Any idea how to provide a specific locale without changing the global setting of the system?

[Michał Rudolf]

Can you try LC_ALL and LANGUAGE instead of LANG? Also, you can run locale -a to check if your preferred locale is available.

[jsbien]

LANG=pl_PL.UTF-8 sort sort_test1.csv works correctly, so my previous tests were unreliable.

LANGUAGE seems to be OK, LC_ALL not.

I will make later more tests on real data, perhaps LANGUAGE is the solution.

[Michał Rudolf]

Sorting of index is done by Qt which should use low-level OS functions on each OS, so there is not much I can do about it.

[jsbien]

I found no problems with LANGUAGE.

[jsbien]

Just for the future, perhaps you can write to log or display somewhere the locale used.