D18982: prevent assertion in regex load

[David Schulz]

davschul created this revision.
davschul added a reviewer: vkrause.
Herald added projects: Kate, Frameworks.
Herald added subscribers: kde-frameworks-devel, kwrite-devel.
davschul requested review of this revision.

REVISION SUMMARY
  Instead of crashing the complete application with an assert on a malformed
  regex use the logging category to inform users when such a regex is found.
  This way the check can also be enabled for release builds, and don't have to
  run unnecessarily for debug builds

REPOSITORY
  R216 Syntax Highlighting

REVISION DETAIL
  https://phabricator.kde.org/D18982

AFFECTED FILES
  src/lib/rule.cpp

To: davschul, vkrause
Cc: kwrite-devel, kde-frameworks-devel, gennad, michaelh, ngraham, bruns, demsking, cullmann, sars, dhaumann
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