[ jEdit-devel ] [ jedit-Bugs-1754418 ] 4.3pre10: 100% CPU usage when highlighting Perl regex

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Bugs item #1754418, was opened at 2007-07-15 12:13
Message generated for change (Comment added) made by vanza
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Category: text area and syntax packages
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: batooh (batooh)
Assigned to: Nobody/Anonymous (nobody)
Summary: 4.3pre10: 100% CPU usage when highlighting Perl regex

Initial Comment:
The error may be reproduced by opening the Perl module File::Spec::Win32 which can be found here:

    http://search.cpan.org/src/KWILLIAMS/PathTools-3.25/lib/File/Spec/Win32.pm

If the edit mode is set to perl and you scroll down to line 145 (or below) jEdit will lock up with 100% CPU usage.

Activity Log:

20:28:01 [message] Log: When reporting bugs, please include the following information:
20:28:01 [message] Log: java.version=1.6.0
20:28:01 [message] Log: java.vm.version=1.6.0-b105
20:28:01 [message] Log: java.runtime.version=1.6.0-b105
20:28:01 [message] Log: java.vendor=Sun Microsystems Inc.
20:28:01 [message] Log: java.compiler=null
20:28:01 [message] Log: os.name=Windows XP
20:28:01 [message] Log: os.version=5.1
20:28:01 [message] Log: os.arch=x86
20:28:01 [message] Log: user.home=C:\Dokumente und Einstellungen\mudall
20:28:01 [message] Log: java.home=C:\Programme\Java\jre1.6.0
20:28:01 [message] Log: java.class.path=C:\Tools\Misc\jEdit\jedit.jar
20:28:01 [debug] MiscUtilities: Saving backup of file "C:\Dokumente und Einstellungen\mudall\.jedit\activity.log" to "C:\Dokumente und Einstellungen\mudall\.jedit\settings-backup\activity.log~1~"
20:28:01 [notice] jEdit: jEdit version 4.3pre10
20:28:01 [message] jEdit: Settings directory is C:\Dokumente und Einstellungen\mudall\.jedit
20:28:01 [message] jEdit: jEdit home directory is C:\Tools\Misc\jEdit
20:28:01 [debug] EditServer: jEdit server started on port 1865
20:28:01 [debug] EditServer: Authorization key is 2096859266
20:28:01 [debug] ActionSet: Loading actions from jar:file:/C:/Tools/Misc/jEdit/jedit.jar!/org/gjt/sp/jedit/actions.xml
20:28:01 [debug] DockableWindowManager: Loading dockables from jar:file:/C:/Tools/Misc/jEdit/jedit.jar!/org/gjt/sp/jedit/dockables.xml
20:28:01 [debug] EditBus: SearchSettingsChanged[source=null]
20:28:01 [notice] jEdit: Loading plugins from C:\Tools\Misc\jEdit\jars
20:28:01 [debug] EditBus: PluginUpdate[what=LOADED,exit=false,source=C:\Tools\Misc\jEdit\jars\LatestVersion.jar,class=LatestVersionPlugin]
20:28:01 [debug] EditBus: PluginUpdate[what=LOADED,exit=false,source=C:\Tools\Misc\jEdit\jars\QuickNotepad.jar,class=QuickNotepadPlugin]
20:28:01 [notice] jEdit: Loading plugins from C:\Dokumente und Einstellungen\mudall\.jedit\jars
20:28:01 [debug] EditBus: PluginUpdate[what=LOADED,exit=false,source=C:\Dokumente und Einstellungen\mudall\.jedit\jars\BufferTabs.jar,class=buffertabs.BufferTabsPlugin]
20:28:01 [debug] EditBus: PluginUpdate[what=LOADED,exit=false,source=C:\Dokumente und Einstellungen\mudall\.jedit\jars\Gestures.jar,class=gestures.GesturePlugin]
20:28:01 [debug] EditBus: PluginUpdate[what=LOADED,exit=false,source=C:\Dokumente und Einstellungen\mudall\.jedit\jars\JDiffPlugin.jar,class=jdiff.JDiffPlugin]


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>Comment By: Marcelo Vanzin (vanza)
Date: 2007-07-15 13:42

Message:
Logged In: YES 
user_id=75113
Originator: NO

Fixed in svn rev #10043. This line was the culprit:

$path =~ s{^\\\.\.$}{\\};                      # \..    -> \

The regexp in the mode file was causing the java.util.regex system to go
nuts, so I simplified it a bit (and verified that highlighting looked
correct).

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You can respond by visiting: 
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