[Kst] [Bug 118748] New: Double superscripts causes kst to crash.

[Matthew Truch]

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http://bugs.kde.org/show_bug.cgi?id=118748         
           Summary: Double superscripts causes kst to crash.
           Product: kst
           Version: unspecified
          Platform: Fedora RPMs
        OS/Version: Linux
            Status: NEW
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: kst kde org
        ReportedBy: matt truch net


Version:           1.2.0_svn_trunk (using KDE KDE 3.4.2)
Installed from:    Fedora RPMs
OS:                Linux

Double super scripts cause kst to crash.  

I entered "s^-^2" as the text for the x-axis, and kst crashed.  This was while trying to figure out how to get s^{-2} (before I realized grouping was with curly braces, a la latex, duh!).  Double subscripts have a similar effect.  

Backtrace follows:

Using host libthread_db library "/lib/libthread_db.so.1".
`shared object read from target memory' has disappeared; keeping its symbols.
[Thread debugging using libthread_db enabled]
[New Thread -1209116992 (LWP 9342)]
[New Thread -1212662864 (LWP 9345)]
[KCrash handler]
#4  0x00bc5c14 in KstPlotLabel::computeTextSize (this=0x8767900)
    at kstplotlabel.cpp:155
#5  0x00bc5e2e in KstPlotLabel::setText (this=0x8767900, text= 0xbfc00e00)
    at kstplotlabel.cpp:82
#6  0x00c33f1e in KstPlotDialogI::applyAppearance (this=0x8548340, 
    plot= 0xbfc00ef8) at kstplotdialog_i.cpp:550
#7  0x00c3d9a6 in KstPlotDialogI::applySettings (this=0x8548340, c=0x8b66158, 
    plot= 0xbfc00fa8) at kstplotdialog_i.cpp:834
#8  0x00c3e5f8 in KstPlotDialogI::edit_I (this=0x8548340)
    at kstplotdialog_i.cpp:912
#9  0x00c3e945 in KstPlotDialogI::qt_invoke (this=0x8548340, _id=59, 
    _o=0xbfc010a8) at kstplotdialog_i.moc:197
#10 0x026b4eb4 in QObject::activate_signal (this=0x85f26b8, clist=0x8619188, 
    o=0xbfc010a8) at kernel/qobject.cpp:2355
#11 0x026b5374 in QObject::activate_signal (this=0x85f26b8, signal=4)
    at kernel/qobject.cpp:2324
#12 0x02a34c7e in QButton::clicked (this=0x0)
    at .moc/release-shared-mt/moc_qbutton.cpp:152
#13 0x02754a63 in QButton::mouseReleaseEvent (this=0x85f26b8, e=0xbfc014d4)
    at widgets/qbutton.cpp:836
#14 0x026f3187 in QWidget::event (this=0x85f26b8, e=0xbfc014d4)
    at kernel/qwidget.cpp:4699
#15 0x026500dd in QApplication::internalNotify (this=0x0, receiver=0x85f26b8, 
    e=0xbfc014d4) at kernel/qapplication.cpp:2635
#16 0x0265103f in QApplication::notify (this=0xbfc01c58, receiver=0x85f26b8, 
    e=0xbfc014d4) at kernel/qapplication.cpp:2421
#17 0x008a0851 in KApplication::notify () from /usr/lib/libkdecore.so.4
#18 0x025e7746 in QETWidget::translateMouseEvent (this=0x85f26b8, 
    event=0xbfc01798) at kernel/qapplication.h:518
#19 0x025e5f01 in QApplication::x11ProcessEvent (this=0xbfc01c58, 
    event=0xbfc01798) at kernel/qapplication_x11.cpp:3468
#20 0x025fa008 in QEventLoop::processEvents (this=0x84a05d0, flags=)
    at kernel/qeventloop_x11.cpp:192
#21 0x0266882b in QEventLoop::enterLoop (this=0x84a05d0)
    at kernel/qeventloop.cpp:198
#22 0x02668736 in QEventLoop::exec (this=0x84a05d0)
    at kernel/qeventloop.cpp:145
#23 0x0264faa9 in QApplication::exec (this=0xbfc01c58)
    at kernel/qapplication.cpp:2758
#24 0x080548db in main (argc=2, argv=0xbfc022d4) at main.cpp:811
#25 0x00de7d5f in __libc_start_main () from /lib/libc.so.6
#26 0x0804d9b1 in _start ()