BUG: 410802
FIXED-IN: 19.12
(cherry picked from commit febeff84)

In case the specified backend executable is not an executable, show the path of the file in the warning and not the name of the backend.

Since sagemath 8.9 it is possible to run sage without sourcing sage-env (https://trac.sagemath.org/ticket/28225) so don't abort if it is not present.

Differential Revision: https://phabricator.kde.org/D24955

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

Fix bug with unchangeable (from defaults settings) worksheet parameters (completion, embedded math, etc)

Properly propagate the current expression to Worksheet::gotResult(). Regression introduced in 71be13f0.

However, there is still some logic in the code making use of this "backend"
which crashes Cantor when opening of a project file at the moment. This patch
refactors the logic a bit and removes the remaining usage of the null backend completely.

Differential Revision: https://phabricator.kde.org/D24006

commandentry.cpp.

requirementsFullfilled() in kalgebrabackend.

required.

different backends doesn't fullfil some requirements. Also, some more
cleanup in the code in the touched files.

Summary: Just a typofix patch.

Test Plan: Needs review because of changing sample files.

Reviewers: sirgienko

Reviewed By: sirgienko

Subscribers: kde-edu

Tags: #kde_edu

Differential Revision: https://phabricator.kde.org/D23882

some requirements are not fulfilled. The user should always get the
general information about the backend and also the URL to quickly
navigate to the homepage and to download newer version, etc.