D17437: SearchBar: Avoid malfunction with very large files

[loh tar]

loh.tar created this revision.
loh.tar added reviewers: KTextEditor, VDG.
Herald added projects: Kate, Frameworks.
Herald added subscribers: kde-frameworks-devel, kwrite-devel.
loh.tar requested review of this revision.

REVISION SUMMARY
  This is only a workaround to avoid cases where Kate can crash due to a
  run out of memory.
  
        
  
  CCBUG: 333517

TEST PLAN
  Search warning
  F6464367: 1544290032.png <https://phabricator.kde.org/F6464367>
  Replace warning
  F6464368: 1544290055.png <https://phabricator.kde.org/F6464368>

REPOSITORY
  R39 KTextEditor

REVISION DETAIL
  https://phabricator.kde.org/D17437

AFFECTED FILES
  src/search/katesearchbar.cpp

To: loh.tar, #ktexteditor, #vdg
Cc: kwrite-devel, kde-frameworks-devel, #ktexteditor, hase, michaelh, ngraham, bruns, demsking, cullmann, sars, dhaumann
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