Package: kate Version: 4:15.08.3-1 Severity: important Dear Maintainer,
when using the 'Search & Replace' tool in kate (not the Ctrl+f find), if regular expressions are activated, any expression that can match anything, such as '\b', will cause kate, and the system, to 'freeze', as kate would eat up 100% of the CPU. I believe the main problem is that kates tries to match your pattern against the *current file* *as you're typing it*, even though you've specifically chosen to "Search in: Folder", and not "Search in: Open Files" or "Search in: Current File", and have not yet hit the "Search" button. Even before you've pressed the "Search" button, the matches are highlighted in the current file, and you position is moved to the first match (again, not for Ctrl+f find, but for Search & Replace). If you wanted to stay where you were in the current file, while searching in a folder, you couldn't do that because as soon as you start typing you could end up in a different place of the open file (if a match is found). If you've activated regular expressions for the search, and are changing a previous pattern, trying to replace '\bfoo\b' by '\bbar\b' for instance, the moment you've erased 'foo', and are left with '\b\b', it looks like kate finds that this matches *everything*, and that's why it's eating all the CPU, trying to report every single match. The same thing happens if you've already checked the 'regular expressions' box *before* you start typing the regexp : as soon as you've typed in '\b', this matches everything again and freezes as well. So : * no search should happen with the Search & Replace tool until you press the Search button * searching in a folder should not automatically search in the open file as well * regular expressions should be sanity-checked : any expression that matches everything shoud trigger a warning Thanks a lot. -- System Information: Debian Release: stretch/sid Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages kate depends on: ii kate5-data 4:15.08.3-1 ii ktexteditor-katepart 5.16.0-1 ii libc6 2.22-5 ii libgit2-23 0.23.1-1.1 ii libkf5activities5 5.16.0-1 ii libkf5bookmarks5 5.16.0-1 ii libkf5completion5 5.16.0-1 ii libkf5configcore5 5.16.0-1 ii libkf5configgui5 5.16.0-1 ii libkf5configwidgets5 5.16.0-1 ii libkf5coreaddons5 5.16.0-1 ii libkf5dbusaddons5 5.16.0-1 ii libkf5guiaddons5 5.16.0-1 ii libkf5i18n5 5.16.0-1 ii libkf5iconthemes5 5.16.0-1 ii libkf5itemmodels5 5.16.0-1 ii libkf5jobwidgets5 5.16.0-1 ii libkf5kiocore5 5.16.0-1 ii libkf5kiofilewidgets5 5.16.0-1 ii libkf5kiowidgets5 5.16.0-1 ii libkf5newstuff5 5.16.0-1 ii libkf5notifications5 5.16.0-1 ii libkf5parts5 5.16.0-1 ii libkf5plasma5 5.16.0-1 ii libkf5service-bin 5.16.0-1 ii libkf5service5 5.16.0-1 ii libkf5texteditor5 5.16.0-1 ii libkf5textwidgets5 5.16.0-1 ii libkf5threadweaver5 5.16.0-1 ii libkf5wallet-bin 5.16.0-1 ii libkf5wallet5 5.16.0-1 ii libkf5widgetsaddons5 5.16.0-1 ii libkf5windowsystem5 5.16.0-1 ii libkf5xmlgui5 5.16.0-1 ii libqt5core5a 5.5.1+dfsg-16 ii libqt5dbus5 5.5.1+dfsg-16 ii libqt5gui5 5.5.1+dfsg-16 ii libqt5sql5 5.5.1+dfsg-16 ii libqt5widgets5 5.5.1+dfsg-16 ii libqt5xml5 5.5.1+dfsg-16 ii libstdc++6 5.3.1-13 ii plasma-framework 5.16.0-1 ii qml-module-org-kde-kquickcontrolsaddons 5.16.0-1 ii qml-module-qtquick-layouts 5.5.1-2 ii qml-module-qtquick2 5.5.1-3 kate recommends no packages. Versions of packages kate suggests: ii aspell 0.60.7~20110707-3+b1 ii ispell 3.4.00-5 ii khelpcenter 4:5.4.3-1 ii konsole-kpart 4:15.08.3-1 -- no debconf information
