Bennett Helm wrote:
> Patrick De Visschere noted on the User's list that:
> 
>> If you change the environment of a blanco line (from Standard) to
>> Paragraph and then type text on the line LyX crashes.
> 
> I can confirm this on current svn. Here's the backtrace:

Here too, (Windows). Attached patch fixes it.
Could you test it on the Mac?


> 
> Program received signal EXC_BAD_INSTRUCTION, Illegal instruction/operand.
> 0x9074e938 in __FUNCTION__.79572 ()
> (gdb) bt
> #0  0x9074e938 in __FUNCTION__.79572 ()
> #1  0xbfffd088 in ?? ()
> #2  0x000ac37b in lyx::ParConstIterator::operator-> (this=0x1ab95950) at
> ParIterator.cpp:160
> #3  0x000d6106 in lyx::TocBackend::updateItem (this=0xea87890,
> [EMAIL PROTECTED]) at TocBackend.cpp:135
> #4  0x000179ae in lyx::checkBufferStructure ([EMAIL PROTECTED],
> [EMAIL PROTECTED]) at buffer_funcs.cpp:707
> #5  0x000bd2f9 in lyx::Text::insertChar (this=0xea8777c, [EMAIL PROTECTED],
> c=97) at Text.cpp:746
> #6  0x000d8b22 in lyx::TransManager::insert (this=0xd3be4f0,
> [EMAIL PROTECTED], text=0xea8777c, [EMAIL PROTECTED]) at Trans.cpp:684
> #7  0x000d92d1 in lyx::TransManager::translateAndInsert (this=0xd3be4f0,
> c=97, text=0xea8777c, [EMAIL PROTECTED]) at Trans.cpp:676
> #8  0x000c9cd1 in lyx::Text::dispatch (this=0xea8777c, [EMAIL PROTECTED],
> [EMAIL PROTECTED]) at Text3.cpp:1145
> #9  0x00038f21 in lyx::Cursor::dispatch (this=0xd3be114,
> [EMAIL PROTECTED]) at Cursor.cpp:311
> #10 0x00084fd0 in lyx::LyXFunc::dispatch (this=0xd31c840,
> [EMAIL PROTECTED]) at LyXFunc.cpp:1748
> #11 0x000862ab in lyx::LyXFunc::processKeySym (this=0xd31c840,
> [EMAIL PROTECTED], state=none) at LyXFunc.cpp:371
> #12 0x001cf1e1 in lyx::frontend::WorkArea::processKeySym
> (this=0xd3b2764, [EMAIL PROTECTED], state=none) at WorkArea.cpp:175
> #13 0x0038be14 in lyx::frontend::GuiWorkArea::keyPressEvent
> (this=0xd3b2750, e=0xbfffedb0) at GuiWorkArea.cpp:426
> #14 0x00207bf6 in QWidget::event () at QLImage.cpp:173
> #15 0x002ae791 in QFrame::event () at InsetMathPar.cpp:28
> #16 0x002948e6 in QAbstractScrollArea::event () at InsetMathPar.cpp:28
> #17 0x001946b8 in QApplicationPrivate::notify_helper () at
> MathParser.cpp:1472
> #18 0x00199154 in QApplication::notify () at MathParser.cpp:1472
> #19 0x001621d6 in lyx::frontend::GuiApplication::notify (this=0xe817e00,
> receiver=0xd3b2750, event=0xbfffedb0) at GuiApplication.cpp:238
> #20 0x001e16e3 in QCoreApplication::notifyInternal () at QKeySymbol.cpp:105
> #21 0x001d88ae in qt_sendSpontaneousEvent () at QKeySymbol.cpp:105
> #22 0x00353c38 in QKeyMapper::sendKeyEvent () at cregex.cpp:428
> #23 0x00354d36 in QKeyMapperPrivate::translateKeyEvent () at cregex.cpp:428
> #24 0x001db762 in QApplicationPrivate::globalEventProcessor () at
> QKeySymbol.cpp:105
> #25 0x92dd6537 in DispatchEventToHandlers ()
> #26 0x92dd5bdc in SendEventToEventTargetInternal ()
> #27 0x92dd5aa1 in SendEventToEventTargetWithOptions ()
> #28 0x92ddd624 in ToolboxEventDispatcherHandler ()
> #29 0x92dd68ee in DispatchEventToHandlers ()
> #30 0x92dd5bdc in SendEventToEventTargetInternal ()
> #31 0x92ddcfbc in SendEventToEventTarget ()
> #32 0x001d7b5c in qt_mac_send_event () at QKeySymbol.cpp:105
> #33 0x0035fefa in QEventDispatcherMac::processEvents () at cregex.cpp:428
> #34 0x00378564 in QEventLoop::processEvents () at cregex.cpp:428
> #35 0x003786e7 in QEventLoop::exec () at cregex.cpp:428
> #36 0x001e31d1 in QCoreApplication::exec () at QKeySymbol.cpp:105
> #37 0x000761f1 in lyx::LyX::exec (this=0xbffffa24, [EMAIL PROTECTED],
> argv=0xbffffaac) at LyX.cpp:463
> #38 0x00003023 in main (argc=1, argv=0xbffffaac) at main.cpp:48
> 
> 
> Bennett
> 


-- 
Peter Kümmel
Index: TocBackend.cpp
===================================================================
--- TocBackend.cpp      (revision 18243)
+++ TocBackend.cpp      (working copy)
@@ -128,6 +128,9 @@
 
        TocIterator toc_item = item("tableofcontents", par_it);
 
+       if (toc_item == toc("tableofcontents").end())
+               return;
+
        docstring tocstring;
 
        // For each paragraph, traverse its insets and let them add

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