D17293: Add warning if trying to paste unprintable characters, and possibility to filter them out

[Martin Tobias Holmedahl Sandsmark]

sandsmark created this revision.
sandsmark added reviewers: Konsole, hindenburg.
Herald added a project: Konsole.
Herald added a subscriber: konsole-devel.
sandsmark requested review of this revision.

REVISION SUMMARY
  inspired by https://georg.so/pub/cat.html and other semi-recent stuff, having a more general safety mechanism seemed like a good idea.

TEST PLAN
  https://georg.so/pub/cat.html is a good start, https://github.com/minimaxir/big-list-of-naughty-strings/blob/master/blns.txt has some as well

REPOSITORY
  R319 Konsole

REVISION DETAIL
  https://phabricator.kde.org/D17293

AFFECTED FILES
  TerminalDisplay.cpp

To: sandsmark, #konsole, hindenburg
Cc: konsole-devel, #konsole, ngraham, maximilianocuria, hindenburg
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