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  1. Qt
  2. QTBUG-85139

QTextDocument::setMarkdown slow on certain input

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P3: Somewhat important P3: Somewhat important
    • None
    • 5.14.1, 5.15.0
    • GUI: Text handling
    • Ubuntu 18.04 LTS 64 bit
      g++ 7.5.0
      Qt 5.15.0, release build

      1. Build the attached project.
      2. Pass the attached markdown file to the resulting program: 
        ./report input.md

        It will take more than 3 seconds to run through the file which is significantly longer than other files of similar size take.

      Google's oss-fuzz found this as issue 21100.

        1. input.md
          52 kB
          Robert Löhning
        2. main.cpp
          0.2 kB
          Robert Löhning
        3. report.pro
          0.0 kB
          Robert Löhning
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            srutledg Shawn Rutledge
            rlohning Robert Löhning
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              Created:
              Updated:
              Resolved:

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