https://bugs.documentfoundation.org/show_bug.cgi?id=136602
Bug ID: 136602
Summary: Improvement find & replace performance
Product: LibreOffice
Version: 7.1.0.0.alpha0+ Master
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: enhancement
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
This enhancement is based on
https://bugs.documentfoundation.org/show_bug.cgi?id=119286#c14
(1) We repeatedly revalidate the paragraph signature. Since we're making
changes to individual words/letters, this is effectively O(n^2). A smarter
thing to do would be to only do this validation after the replace operation.
(2) We create a ton of small UNDO objects. Again, a smarter thing to do would
be to create a single UNDO operation.
The first one is tricky because it uses the UNO API to inspect the document,
while the rest of the code is using the internal raw API.
The second one is tricky because there are loops at multiple levels of the call
stack, and it's not clear how the responsibilities are shared across the
different calls.
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