mwolff added a comment.

  In D11487#230913 <https://phabricator.kde.org/D11487#230913>, @jtamate wrote:
  
  > In D11487#230895 <https://phabricator.kde.org/D11487#230895>, @mwolff wrote:
  >
  > > Looking at `TextLineData::addAttribute`, it doesn't seem to sort the data 
- how can you be sure that the attributes list really is sorted by `offset + 
length`? I think this should be done manually there, or at least asserted. The 
old code apparently also relied on the order of attributes after all.
  >
  >
  > For what I've seen in my traces, the attributes are sorted.
  >  How do you assert on the order of a list? I do not know how to do that.
  
  
  You assert that newly added items actually sort-after the last added item in 
the vector
  
  >> @cullmann @dhaumann: can we have overlapping attributes? If so, then this 
opens another can of worms when we start to use binary searches over *ranges*.
  >> 
  >> Note that we could think about an alternative (could also be combined with 
your patch) approach to speeding up this function: 
  >> Pass around the previously found position. 
  >>  The way I guess this hotspot arises is that some function calls attribute 
on every pos in the line, linearly. We can leverage this and continue from 
where we left off the last time we returned.
  > 
  > The function is KateSpellCheckManager::spellCheckWrtHighlightingRanges in 
src/spellcheck/spellcheck.cpp(176)
  >  I tried this approach. Didn't work for me. :-(
  >  You have to store that information in a pointer, because the method is 
const.
  
  we can return the iterator and take it as an argument again
  
  >> Really, I'd like to get my hands on one of your large XML files to play 
around with this myself :)
  > 
  > I'll try to generate one :with no private data ;-)
  
  thanks :)

REPOSITORY
  R39 KTextEditor

REVISION DETAIL
  https://phabricator.kde.org/D11487

To: jtamate, #frameworks, #kate
Cc: dhaumann, mwolff, cullmann, michaelh, kevinapavew, ngraham, demsking, sars

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