VSpace Crash [was: import fail on working latex doc]

[Richard Heck]

On 10/31/2010 05:42 AM, Scott Otterson wrote:

Has anyone seen this problem before? I have a short latex document (below the dotted line) that latex crunches without error. However, when I try to import it into lyx (file-->import plain latex) lyx manages to create a .lyx file but then hangs forever when it tries to read it (I've also put the output .lyx file below the dotted line).

    Warning: #LyX file created by tex2lyx 1.6.6
    BufferParams::readToken(): Unknown token: default
    BufferParams.cpp(2365): Unknown inputenc value `\font_roman'.
    Using `auto' inst\
    ead.

Here's what cygwin lyx 1.6.6 sends to the command shell when it tries to read the .lyx file:

There is a tex2lyx issue here: For some reason, the LyX file has just:
    \inputencoding
with no argument. But that's not the real issue.

I have the same problem with lyx 1.6.7 on Windows 7 and 1.6.6 on Ubuntu.

In debug mode, it crashes. I'm seeing an infinite loop in this code:

int VSpace::inPixels(BufferView const & bv) const
{
    // Height of a normal line in pixels (zoom factor considered)
    int const default_height = defaultRowHeight();

    switch (kind_) {

    case DEFSKIP:
        return bv.buffer().params().getDefSkip().inPixels(bv);



The cause seems to be the line:
    \defskip 0.75\baselineskip


Richard

====

0    lyx::VSpace::inPixels    VSpace.cpp    518    0x00000000006a0b0f
1    lyx::VSpace::inPixels    VSpace.cpp    518    0x00000000006a0b32
2    lyx::VSpace::inPixels    VSpace.cpp    518    0x00000000006a0b32
3    lyx::VSpace::inPixels    VSpace.cpp    518    0x00000000006a0b32

17    lyx::dispatch    LyX.cpp    1228    0x00000000005a2218

20    QMetaObject::activate    qobject.cpp    3295    0x000000313ab66606
... <More>

It seems that bv.buffer().params().getDefSkip() is just a VSpace, and so this calls itself. If this is changed to "default", the crash disappears. I guess this never gets handled in the VSpace constructor? 4 lyx::TextMetrics::rowHeight TextMetrics.cpp 1076 0x0000000000677bd3 5 lyx::TextMetrics::redoParagraph TextMetrics.cpp 459 0x000000000067f1b5 6 lyx::BufferView::updateMetrics BufferView.cpp 2476 0x00000000006cc4d0 7 lyx::BufferView::resize BufferView.cpp 1933 0x00000000006cc702 8 lyx::frontend::GuiWorkArea::init GuiWorkArea.cpp 273 0x00000000009cd83d 9 lyx::frontend::GuiWorkArea::GuiWorkArea GuiWorkArea.cpp 251 0x00000000009ceda3 10 lyx::frontend::TabWorkArea::addWorkArea GuiWorkArea.cpp 1575 0x00000000009d5964 11 lyx::frontend::GuiView::addWorkArea GuiView.cpp 1152 0x00000000009ab8be 12 lyx::frontend::GuiView::setBuffer GuiView.cpp 1330 0x00000000009b26aa 13 lyx::frontend::GuiView::loadDocument GuiView.cpp 1819 0x00000000009b4a93 14 lyx::frontend::GuiView::openDocument GuiView.cpp 1897 0x00000000009b7b54 15 lyx::frontend::GuiApplication::dispatch GuiApplication.cpp 1330 0x0000000000988b0f 16 lyx::frontend::GuiApplication::dispatch GuiApplication.cpp 1096 0x00000000009813b9 18 lyx::frontend::Action::action Action.cpp 66 0x0000000000a1d023 19 lyx::frontend::Action::qt_metacall moc_Action.cpp 77 0x0000000000a1d083

fail.lyx
Description: application/lyx