Richard Heck [Thu, 7 Aug 2014 19:00:35 +0000 (15:00 -0400)]
Possible fix for the mystery crash, which is bug #9049.
Investigation of bug #9236 showed that crash to be due to a Paragraph's
holding a dangling pointer to an old and deleted Layout after the
DocumentClass was reset. Since the backtraces look almost identical, it
seems likely that we have the same problem here.
Since this crash seems almost always to involve tables, I looked at the
code in switchBetweenClasses() and found that the Paragraphs that belong
to "hidden" table cells are not seen by the initial recursion using a
ParIterator: It skips right over them. This was confirmed by test code
suggested by Enrico, with results reported in Trac.
The present patch attempts to deal with this problem in the second
recursion, over Insets. When we see an InsetTabular, we call a new
routine that recurses through the cells, looking for hidden ones. If it
finds a hidden one, it then resets the Layout for the cell's Paragraphs
(there should be only one, but we do not make any assumptions) to the
PlainLayout that belongs to the new DocumentClass. This is good enough,
since such cells never have content.
There is extensive discussion of the patch here:
https://www.mail-archive.com/lyx-devel@lists.lyx.org/msg185095.html
Additional testing by Enrico and me confirmed the existence of the
dangling pointer.
If LyX does not know about a given file format, it may easily
happen that the format is recognized as "latex" and this causes
bug #9146. This patch limits the check for a latex format to
non-binary files. The strategy for deciding that a file has
binary content is the same as that adopted by the "less" program.
This is a stripped down backport of the more complex fix in master.
Add some postscript and pdf viewers for Unix and Windows.
For Windows: AcroRd32, SumatraPDF and gsview (both 32 and 64 bit versions).
For Unix: qpdfview.
Qpdfview is a nice alternative to Okular for KDE users and a superior
alternative to Evince for Gnome users, due to its complete synctex
support. It only depends on Qt libraries for the graphical interface.
Forthcoming versions of cygwin will use a different mechanism for
obtaining passwd/group information based on /etc/nsswitch.conf.
Thus, it will not be guaranteed that the files /etc/passwd and
/etc/group even exist. The recommended way for obtaining those
info is by using the getent command, which already works in
current versions.
Fix bug #9151 (Wrong reverse search for images and tables).
If the reverse position corresponds to an inset, its paragraph id
does not follow the main text numbering. Typically, an inset has
only a few paragraphs, so that we would jump near the beginning of
the document. Now the cursor in LyX jumps to the right spot.
The conversion from floating point to string performed by
boost:lexical_cast does not allow specifying a precision and,
for example, values such as 0.9 are returned as 0.899999976.
The standard C++ way for performing the conversion is using
std::ostringstream which is exempt from this problem, even if
less efficient. For the sake of accuracy, boost::lexical_cast
is ditched in favor of the ostrinsgstream implementation.
In C++11 another option would be using std::to_string, but I
think it is not as efficient as the boost way and not worth
implementing through #ifdef's.
Do not forget last word of paragraph in completion
With the old code, the last word of a paragraph would not be added in
the completion list. The key difference is to pass `from' instead of `pos'
to FontList::fontiterator.
Georg Baum [Wed, 9 Jul 2014 18:58:44 +0000 (20:58 +0200)]
Fix bug #9162: Missing \use_indices
The lyx2lyx conversion for format 352 was incomplete: It should have been
added the \use_indices setting, but it relied on the fact that the default in
LyX for missing \use_indices is the same as the old format without that
setting used. However, the default might change in the future, and later
lyx2lyx conversions rely on that setting as well.
Georg Baum [Mon, 7 Jul 2014 20:31:11 +0000 (22:31 +0200)]
Make GraphicsConverter threadsafe
build_script() was already threadsafe, since it used a TempFile, and the
counter was basically not needed, but the new solution makes this obvious
and has the additional advantage that TempFile constructs the real output
file, not a dummy without extension which is not needed.
Georg Baum [Mon, 7 Jul 2014 20:16:13 +0000 (22:16 +0200)]
Fix LaTeXFeatures::useLayout() recursion test
It was broken in two ways: It was not threadsafe, and it did never detect
any recursion, since the counter was decremented for each non-recursive call
and never incremented again.
Georg Baum [Mon, 7 Jul 2014 20:14:28 +0000 (22:14 +0200)]
Make LaTeX export threadsafe.
This is one of the more important threadsafety issues because of export in
thread and simultanous view source. The solution is ugly, but a better one
(see FIXME) would require major rework. These static variables should not
have been used in the first place IMHO.
Georg Baum [Mon, 7 Jul 2014 20:05:10 +0000 (22:05 +0200)]
Make BufferList::fileNames() threadsafe
Using a static variable here was premature optimization: fileNames() is only
called from GuiRef (directly or indirectly), and since this is a dialog the
copying of a FileNameList is not noticeable at all.
Georg Baum [Mon, 7 Jul 2014 19:34:54 +0000 (21:34 +0200)]
Make Formats::isZippedFile() threadsafe
In this case I use a mutex, so the zip status of files is shared between
threads. This is possible because a deadlock can't happen, and it should give
better performance.
Georg Baum [Sun, 6 Jul 2014 16:12:57 +0000 (18:12 +0200)]
Make theWordList() thread safe.
Without this, you get crashes in a few second when you set the autosave
interval to one second and edit quickly (typing new words etc). The reason
is that the cloned buffer wants to insert words into the word list and
remove them again, but it lives in a different thread.
Richard Heck [Mon, 9 Jun 2014 21:35:17 +0000 (17:35 -0400)]
Backup the existing LyX file before attempting to write the new one.
This avoids dataloss in case we are unable to write the new one after
all.
A more sophisticated approach, due to Georg, is in master, but it needs
more testing that it will be able to get before the release of 2.1.1.
That should be committed to 2.1.x when it is ready and this patch backed
out again.
On startup, the default locale is "C", meaning that all system
functions assume an ascii codeset. The environment's locale
settings should be selected by calling setlocale(LC_ALL,"").
This is done by Qt during the QCoreApplication initialization
but this inizialization is never performed for batch processing
and, as a result, LyX is not able to process files whose names
contain non-ascii characters. This is not an issue on Windows,
where the file names are always stored as UTF-16, so the call is
only performed for unix-like platforms (this also includes cygwin,
due to its own filenames management that allows using characters
which are forbidden to native programs).
The problem is the use of cursor movement methods to update cursor.
Cursor::forwardPos() steps into insets, which is not always what we
want. The problem here is that there is a math inset just after the
accepted change, and that the cursor steps into it for some reason.
This fixes a crash in examples/fa/splash.lyx when selecting text
representing menu entries. This happens because menu names are in LTR
English, while the inset itself is in RTL.
The problem is that the current code relies on the fact that
1. getColumnNearX and checkInsetHit share the same idea about cursor
position.
2. pos and pos + 1 are in general consecutive on screen.
It seems that 1. is wrong here (for reasons I did not try to
understand); the second assumption is definitely false with
bi-directional text. This makes editXY very fragile.
The new code should be more robust in this respect. The logic is:
* if checkInsetHit finds an inset, use its position,
* otherwise, ask getColumnNearX for the cursor position.
Richard Heck [Tue, 3 Jun 2014 14:42:07 +0000 (10:42 -0400)]
Per a suggestion of JMarc's, first write the saved file to a
temporary name, then move it to its real location if we succeed.
This prevents our over-writing the existing file with a corrupt
one.
(cherry picked from commit 10364082c8351b0f4a258699742370195aadde6b)
Richard Heck [Thu, 29 May 2014 22:17:08 +0000 (18:17 -0400)]
Copy over changes to lyx2lyx made in master. Unfortunately, some of
these got committed to stable and some did not, and now it is all but
impossible (I've tried) to do this by cherry-picking.
Georg Baum [Thu, 29 May 2014 11:15:07 +0000 (13:15 +0200)]
Do not corrupt documents without newline at EOF
trim_eol() assumes that a line always ends either with \n, \r, or \r\n.
This assumption is always valid except for the last line of a document, since it
may miss the trailing newline. LyX does not create such documents, bu they may
result from automatic creation tools, and LyX can read them, so lyx2lyx should
be able to read them as well.
(cherry picked from commit c75c6e446a8bc0dbaabaf156c0abfd622c050129)
Fix indentation of paragraphs after an environment.
When deciding whether a paragraph should be indented or not, LyX
only takes into account default layouts. This is wrong, because
an environment could be nested into another one and thus a following
paragraph would not be "default". With this patch all paragraphs
after an environment are correctly indented, independently of
whether their layouts are "default" or not.
The latex output (which was modeled following the previous wrong
assumption) is also correspondingly adapted.
No status line needed as this is the completion of previous patches.
If a new paragraph is created just before a nested environment,
the indentation of the nested environment is not computed
correctly because the parindent of the previous layout would
also be erroneously taken into account. This would cause the
nested environment to move back and forth when something is
added to the new paragraph.
A proper status line covering this change is already present.
Richard Heck [Fri, 23 May 2014 15:19:14 +0000 (11:19 -0400)]
Improve the fix for #9131. We were previously counting passes
through this routine, which means: one for every character, more
or less. So long strings would hit the "recursion limit". But what
we are worried about is an infinite loop caused by misues of macros,
so that is what we need to count.
LyX fails to indent on screen a standard paragraph when it is
nested into an environment. The fix is a one-liner but the diff
is larger because it also fixes a previous wrong indentantion
in the source ;)
No status line needed because this is an extension of f5a246b1.
Georg Baum [Mon, 19 May 2014 19:50:34 +0000 (21:50 +0200)]
Ugly fix for bug #9102
The real problem is the encoding of latex_language: It is hardcoded to latin1,
but InsetListig uses the currently active encoding. Therefore, we cannot tell
whether any given character wil be encodable or not, and we should not prevent
non-ACII characters.
In the future, we need to make the encoding of latex_language dynamic, so that
it always represents the currently active encoding. Then, we could do the
correct check both for listings and ERT. For now, I simply disabled the
encoding check for listings, which also means that bug 9012 might occur in
other cases for listings, but this is less important than bug 9102.
LyX assumes that a standard paragraph following a layout with
NextNoIndent==false has to be indented on screen, so output the
necessary blank line to make it so also in the output.
If a layout has NextNoIndent set to true, the following paragraph
is not indented on screen. LyX checks the previous layout for that
style parameter to decide whether to indent or not. Of course,
what matters is the latex output and the on-screen representation
should match this output. Now, when a layout has NextNoIndent==true,
the latex output is correctly not indented, while the on-screen
representation may fail to match this output. This can occur when,
for example, a standard paragraph is nested in the previous layout,
because LyX would check the property of the nested layout instead
of the container layout. Thus, LyX should check the property of a
previous layout at the same depth for correctly deciding whether
a paragraph has to be indented or not.
See also http://www.lyx.org/trac/ticket/9055#comment:12 for an
example document where the previous scenario actually occurs.
Richard Heck [Thu, 8 May 2014 22:19:55 +0000 (18:19 -0400)]
Fix bug #9112: There is a test here that seems intended to catch the
case where there are unbalanced braces, but it comes too late. In that
case, we try to check cmd[docstring::npos] and crash.
(cherry picked from commit 6b0a8fbc9614433e7db4e6f994fd62886da8b8eb)
projects / features.git / log