Before, 'lyx -e pdf2' would give no error and would exit with 0. A use
case is if a user has in a bash script the following command:
lyx -e pdf2 "${mylxyfile}" || exit 1
where 'lyx' is mispelled as 'lxy' and thus yields an empty
string. If LyX does not exit with an error, the script continues where
the user probably intends for it to stop.
output, due to failure to clean the ids in the new citation stuff.
I've solved this by allowing the citation format information to contain
keys of the form "clean:key". This signals that we are to apply the
html::cleanAttr() function to the key before returning it. I.e., we
strip non-alphanumeric stuff, basically.
We only need to sort the formats when it is really necessary, i.e. for GUI
purposes.
This also prevents 11000 requests for translation everytime the toolbars
are updated.
The use of this profiler is trivial:
* #include <support/pmprof.h>
* in the block one wants to profile, add
PROFILE_THIS_BLOCK(some_identifier)
* At the end of the execution, statistics will be sent to standard error.
- fileformat change
- it was a pity that LyX did not yet support a simple rectangular frame without a defined width but LyX did this for e.g. oval frames
- \fbox and \mbox often occur in TeX files and can now be imported
Previously, the format used for included pdf files was the same as for
document export via ps2pdf. This caused unwanted conversion routes, e.g.
export via odt->pdf instead of dvi->ps->pdf.
I renamed the format for included graphics and not for exported documents,
since otherwise the command line syntax for export would change. This would
require more adaptions for the users, since with the chosen solution the
custom converters are almost always changed correctly in prefs2prefs(),
so that only custom external templates need manual adjustement.
Before, it was done on editingFinished(). The new behavior is more
intuitive because it is easier for the user to see how editing the box
is connected with enabling/disabling the other widgets. Before, the user
would not get instant feedback and would have to click away before the
connection is revealed. This new behavior is less efficient, however,
because checkEnabled() is called after every keystroke.
need the master buffer here, too: in looking up fonts during XHTML
output.
I'm half tempted to pass the master buffer to these routines, though
there are times, I think, when we want the actual buffer: e.g., when
looking up branches.
* Powerdot now also uses the native overlay item arguments
* a list option argument is finally available
* \pause natively supported (like in beamer)
* support for \onslide (via InsetFlex)
* support for \twocolumn
File format change.
With this commit, old beamer frames are converted to new ones. The old styles are removed (including the infamous \lyxframe).
This should be tested with as much beamer documents as possible (I have already done so), also, tex2lyx now probably produces invalid LyX files.
work we do when calling plaintext() for the purpose of generating
material for the advanced search function.
Here again, not only were we parsing BibTeX files, since Julien's
(sensible) introduction of plaintext output for that inset, but we
were in fact writing (to disk) complete plaintext output for
included files every time we did such a search.
worth doing, as we were creating too much output for tooltips anyway.
But we need to ignore BibTeX insets altogether, as the collection of
the references, etc, is too slow.
so we can write a limited amount when using this for TOC and
tooltip output.
This should solve the problem with slowness that Kornel noticed,
which was caused by our trying to write an entire plaintext
bibliography every time we updated the TOC. We did that because
he had a bibliography inside a branch, and we use plaintext for
creating the tooltip that goes with the branch list.
Other related bugs were fixed along the way. E.g., it turns out
that, if someone had an InsetInclude inside a branch, then we would
have been writing a *plaintext file* for that inset every time we
updated the TOC. I wonder if some of the other reports of slowness
we have received might be due to this kind of issue?
I added it because of a misunderstanding. If the encoding is really set too
late, to_utf8() in the Token constructor would probably fail, but a non-empty
putback buffer is no problem, since it was always created via to_utf8() ->
from_utf8().
Somehow I overlooked that \sideset also supports nonscript arguments for
left and right. This is now fixed, although I do not like the toolbar names.
If somebody knows something better, please improve.
This fixes bug #8554 and some recently introduced busg:
- Encodings::fromLaTeXCommand() can now handle all combining characters,
not only the one letter ones
- The remainder returned from Encodings::fromLaTeXCommand() must never be
thrown away in tex2lyx, but output as ERT
- No special case for combining diacritical marks needed anymore in parse_text()
- No special cases for accents and IPA combining diacritical marks needed
anymore in parse_text()
- special tipa short cuts may only be recognized if the tipa package is loaded
- Use requirements returned by Encodings::fromLaTeXCommand() instead of
hardcoded registering of tipa and tipax
- Get rid of the name2 variable in parse_text(): We must use name, otherwise
the extra stuff that might have been put into name vanishes
This default argument is inserted iff no inset argument is present. This is useful particularly for mandatory arguments that need to have a sensible default value.
tex2lyx skips LyX preamble code only if it thinks that the file was created
by LyX (i.e. special comments are found). I don't like that, but this is
how it works and therefore the special comment neds to be added if the
theorem commands are to be skipped. This header makes also the temporary
setting of in_lyx_preamble obsolete, which caused skipping of user preamble
commands, which were not re-added by LyX.
- Convert prettyref to the autopackage mechanism
- Do not load refstyle automatically if some refstyle preamble code of LyX
is found, since LyX will only load the package if an actual reference
command is used. This is needed for mixed refstyle/prettyref documents.
- Only recognize refstyle commands if refstyle was detected in the preamble
- Only recognize prettyref commands if prettyref was detected in the preamble
- Add a mixed refstyle/prettyref test case
* use verbatimStuff for parsing chunks and make try to follow closely the sweave sytax constraints.
* merge the two cases for parsing << (noweb or quote)
* \verb|ff| requires that its parameter is on a single line.
- support for Cyrillic characters
- support for \textifsymbol and \ascii (fixes bug #8556)
- support for \ding
- tex2lyx/text.cpp: correct an indentation and use "name2" because "name" is already defined in this clause
- for all TIPA characters the tipa and tipx package must always be registered because these characters are also allowed outside a TIPA inset
- include \textvertline because we again reached the maximum number of if statements allowed by MSCV (so safe at least one for now)
The LyX file format only supports one CJK font mapping per document.
Therefore all CJK environments which use a different mapping than the main
one are output in ERT. THis is now explained in the test case, and also the
converion to ERT is improved (although it is still wrong e.g. for paragraphs).
- support for \textdoublevertline, \textvertline, \textglobfall
- support \!o and \!b and \!d and \!g and \!G and \!j
- support and \*k and \*r and \*t and \*w
- register the package "tipa" if \textipa is detected in an equation
- add a \textipa equation to the testfile
(I failed to implement support for the TIPA character "\t*{ }" and the command "\=*".)
- Use the LyX name of encodings instead of the LaTeX names.
The LyX name must be unique, while the name used by LaTeX
not necessarily, e.g. different packages might implement
support for the same encoding.
- Rename koi8 to koi8-r, so that the LyX and LaTeX names match.
- Rename euc-jp-plain to euc-jp-platex, jis-plain to jis-platex
and shift-jis-plain to shift-jis-platex.
- Add utf8-platex encoding (fixes#8408).
LyX file format incremented to 463.
- support for the combining diacritical marks
- support for \texttoptiebar and \textbottomtiebar
- test-insets.lyx: add complete testcase
- TODO.txt: update what still needs to be done
This is achieved by not calling Parse::tokenize_one() anymore in
Parser::good(): The status of the input can be tested without performing the
actual tokenizing. Now there are only two methods that may prevent an encoding
change:next_token() and next_next_token().
The toolbar image is the one Uwe attached to the bug report. Note that
\sideset works only for operators like \sum in the nucleus. LyX allows
any content, so you might get a LaTeX error. I don't know how to prevent
wrong content in the nucleus.
This is an addendum to [72a44b3c/lyxgit] because depending on the environment, LyX adds a \phantomsection before \addcontentsline.
- also update the test file
This is an important part of the tests. If updating the test cases is really a
problem there are two better solutions than not testing the format: Convert
the references with lyx2lyx on the fly, or remove the hard coupling of tex2lyx
and LyX versions again. Both increase additional possible error sources, but
these errors could at least be detected. If the test machinery is made blind
for versions, file format errors are impossible to detect.
Jean-Marc discovered a possible data loss caused by Parser::getChar().
This is now fixed, and Parser::getChar() is removed, since it is no longer
needed and easy to use it in the wrong way.
- nothing needs to be done for feyn.sty - it is already recognized as simple feature and the roundtrip using the feynman example file works
- update entry for undertilde to be uniform
When switching catcodes (for example to verbatim), there are in general some tokens that have already been parsed according to the old catcodes. It is therefore needed to "forget" those token and reparse them.
The basic idea is to use idocstream::putback() to feed the characters back to the stream, but this does not work (probably because we disable buffering). Therefore, we implement a simple stream-like class that implements putback().
The current code is not able to unset an environment variable, only to set it to an empty value. This patch refactors a bit the Message class and uses a new EnvChanger helper class that allows to change temporarily an environment variable and that is able to unset variables if needed.
The patch also adds new functions hasEnv and unsetEnv in environment.cpp.
Open issues:
* there may be systems where unsetenv is not available and putenv("name=") does not do the right thing;
* unsetenv may lead to leaks on some platforms.
* when using unsetenv, we may need to remove strings from the internal map that setEnv uses.
At this moment we do not allow comparison between arbitrary hashes,
but except GUI the code is ready.
Thanks to the powerful way of git addressing we could even ask
for comparisons like '-2 weeks back' if someone wants to play
with GuiCompareHistory.
Only the local index is considered, no remote repo. Also getting the revision
(aka commit hash) is missing. How push and pull could be integrated with the
LyX VCS interface needs to be discussed, but the implemented functionality was
quite straight forward.
The advantage of having this in LyX is the intelligent file name handling
of included files. Implementation as discussed on the list, but ensure also
that an attempt to use locked files fails.
This only move the code, but does not change the displayed labels.
Thus for numerical citation, the label is set to the cite number;
for author-year citation, the abbreviated list of authors is used
i.e. "Smith et al. 2001".
Eventually, we might want to make the label customizable, or get
it from BibTeX.
It is not possible to transport the different error/abort/success conditions
of a VCS checkin through a simple empty or nonempty string. Therefore it was
no wonder that the return values were used inconsistently for different VCS.
Now the log and return status are decoupled, and all VCS are handled
consistently. This is a prerequisite for proper locking detection of the
upcoming rename command.
This is a refactoring commit, which may introduce minor regressions, but should go in the right direction.
* introduce Parser::verbatimEnvironment, which is a wrapper around verbatimStuff
* introduce output_ert, which inserts a string as ERT; this allows to factor out several code instances.
* rename handle_ert to output_ert_inset: this creates an inset and then calls output_ert
* remove handle_comment (use handle_ert instead)
* remove handle_backaspace (unused now)
* use the new methods in handle_listing
TODO:
* use for other verbatim-like cases (Sweave chunk, url...)
* maybe implement Parser::unparse to reparse tokens already parsed with the wrong catcodes (if needed)
- Implement catcode setting in Parser
- add a new Parser::verbatimStuff method that reads verbatim contents
- use this method to parse "verbatim" environment.
- use it to parse \verb too.
- rename Parser::verbatimEnvironment to ertEnvironment.
TODO:
- use for other verbatim-like cases (Sweave chunk, lstlisting...)
- factor out the function that outputs ERT (including line breaks)
- maybe implement Parser::unparse (if needed)
* some functionality is in new modules now
new header locations and library names: QtConcurrent and QtWidgets
* method setResizeMode is renamed to setSectionResizeMode
* deprecated QAbstractItemModel::reset() is dropped now
* platform specific code like QApplication::syncX() is not common anymore
* QString::fromAscii() is dropped now
* some QDesktopServices methods has been moved to QStandardPaths
I do not see where this is really useful (contrary to real plaintext). And it breaks spell checking with hunspell and 8bit disctionaries (part of bug #8526)
Provide functions for translating to the LyX name
of an encoding from either a LaTeX name or an Iconv
name, with the possibility to specify the package.
This is in anticipation of changing to use the LyX
name of the encoding in the .lyx file format and
allowing multiple lib/encodings entries to have
the same LaTeX name (but different packages!).
The tex2lyx parser needs to worry about the iconv
name of the input encoding, so store that instead
of the latex name.
This bug was reported against the ubuntu build:
https://bugs.launchpad.net/bugs/1100046
Additionally, some extra code for avoiding double undo entries has
been removed, since this is handled by grouped undo now.
This patch implements 'move row' and 'move column' features for tabular.
The purpose is to provide a useful behavior in tabular that is
consistent with PARAGRAPH_MOVE_UP and PARAGRAPH_MOVE_DOWN so that the
user can, for example, do alt-<up> to move a row up. Alternatively,
icons for these features are also added to the table toolbar and
context menu.
If there is any selection, the feature is disabled. This is consistent
with how PARAGRAPH_MOVE_UP works in other contexts. Additionally, 'move
row' is disabled if there is a multi-row in the current or target row;
and 'move column' is disabled if there is a multi-column in the current
or target column.
'move row' moves only the left and right borders of a cell along with
the row. Similarly, 'move column' moves only the the top and bottom
borders.
Implementing similar functionality for other insets, such as arrays and
array environments, is on my TODO list.
Reordering citations is one case where catching "Citation undefined
on page ..." doesn't catch the need for a bibtex rerun. This patch
ensures the proper ordering is obtained in pdf output without having
to resort to closing and reopening the LyX document.
Most images are generated by development/tools/generate_symbols_images.py, but
some were drawn manually. Now there is no image missing from the ones the
script can generate.
Some macros defined by wasysym.sty work only in text mode: They either
produce an error in math mode, or wrong output. These symbols are now marked
as text symbols, so that no \ensuremath is created for LaTeX export if they
appear inside \text{}, and the correct images are created.
What was previously accomplished by wrapCitation is now customizable in the
layout files. What we provide by default here corresponds roughly to the
LyX 2.0 behavior.
- achicago
- apacite
- apalike
- astron
- authordate
- chicago
- harvard
- mslapa
- named
This allows these citation packages can be Required by the document layout.
LyX handles the package ordering, loading any of these packages before natbib
when both are required by the document layout. For example, apacite can be
used with or without natbib.
The package achicago isn't compatible with natbib out-of-the-box,
but the following compatibility code makes it work:
\usepackage{achicago}
\let\achicagobib\thebibliography
\usepackage[authoryear]{natbib}
\let\thebibliography\achicagobib
\let\UnexpandableProtect\protect
\let\SCcite\astroncite
The old layouts are still there (marked as deprecated). The new ones are more or less correctly reverted (polishment required), but the old ones not yet converted to the new. Once this is done, a further file format change should be made.
These encodings were not defined, since they must not be used as document
encodings (the characters {, } and \ may appear in high bytes, and latex
would be confused). However, they are supported by CJK.sty (which uses a
preprocessor to circumvent the limitations of the latex executable). These
encodings are now defined, but used for import in tex2lyx only.
The test case CJK.tex contained fake tests for shift-jis and big5 (the
japanese and chinese characters were entered using the utf8 encoding), and
therefore the wrong interpretation of these encoding looked as if it worked.
The comments about missing iconv support of shift-jis and big5 were wrong as
well (otherwise shift-jis-plain would not work either).
Actually, the test case showed several problems:
- ERT insets did use layout "Standard", not "Plain Layout"
- The font scale was read correctly, but tex2lyx claimed that it did ignore
the option "scaled=0.95"
- If a third argument of the CJK environment was given, it caused the whole
environment to be put in ERT with a broken encoding. This is now fixed for
the bug test case by using the \font_cjk header variable, but the encoding
problem still exists for unsupported encodings. I'll file a separate bug
for that.
- The CJKutf8 package was not handled in the preamble parsing. Therefore the
chinese comment in the preamble was read with a wrong encoding, and guessing
the document language did not work.
The new file CJKutf8.tex was created by copying and modifying CJK.tex, but
unfortunately it is impossible to tell git to inherit the history of CJK.tex
for the new file (search the web for git svn copy if you want to know details).
Special characters as created by latex_path() where not converted corectly
from LaTeX macros by tex2lyx. Now this is done, even for file names containing
double quotes which are not used for quoting spaces. These file names are not
legal on windows, and will causes probelms in DVI files, but if they occur
tex2lyx does not produce invalid .lyx files.
The fix is basically mechanical, the additional code for fraction like insets
with three arguments was stolen from \unitfrac. As any math package,
stackrel.sty needs a buffer parameter to switch it off.
I also added the two stackrel flavours to the toolbar.
Both problems where caused by the fact that tex2lyx did not handle
natbib/jurabib citations correctly if natbib/jurabib was loaded by the
document class. Therefore it tried to parse the standard \cite syntax, and
did not recognize \citet and \citep.
These are all generated by development/tools/generate_symbols_images.py, the
only manual adjustments were renamings due to case sensitive file systems on
windows.
The \frametitle command is less convenient to use than the \frame argument, but it provides more options (overlay/action and short title). We thus provide this additionally to the option, like beamer itself does.
This has a list-like structure (with \onslide item commands). The previous implementation was rather useless, since it required lots of ERT. Since the new implementation is so different, we use ERT for conersion/reversion.
The lyx2lyx routines are not yet perfect, though.
stmaryrd.sty sets these symbols up as variable size math delimiters (i.e.
they may be used with \left and \right). Now LyX knows about that and offers
them in the delimiter dialog as well as single symbols.
Only the first paragraph in those sequences goes into the TOC, since the environment is merged.
This is needed to handle the forthcoming beamer environments properly in the outliner.
The stmaryrd package adds support for lots of math symbols, using a font
designed to accompany the computer modern fonts. The changes in detail:
- Fix generate_symbols_list.py to work with stmaryrd.sty. It loooks like it
was automatically translated from a perl version and never used.
- Generate the new symbols in lib/symbols using generate_symbols_list.py and
add some manual adjustments
- Generate stmary10.ttf by a simple ttf export from stmary10.sfd with fontforge
- Add license info for stmary10.ttf
- Create a test file with all symbols from stmaryrd.sty. Actually it would be
nice to have this for the other fonts as well.
- The mechanics: lyx2lyx, tex2lyx, font machinery etc.
While exporting from the command-line, theApp() doesn't exist.
The colors foreground and background are only needed when
previewing, so ignore this during buffer export.
This replaces the fix in 4285b0b3 (Tommaso Cucinotta, 10-12-2012).
In this case, we do not need to pull in Qt dependencies.
This patch puts all projects into subfolders (at least for MSVS). In this
way, there is a better overview (especially if the number of test projects
will be increasing).
Fix#4981:
If the first or last column is deleted, the borders are preserved.
Similarly for the last row, but not for the first row. Selections are
supported.
Based on a patch by Zahari Dimitrov.
Fix the following bug:
When in tabular, enter "ab" in a cell. Place the cursor before "b". Hold
shift and press <right>, then (still holding shift) <right> again. On
the second <right> nothing appears to happen.
Related to #1802.
Fix#4981:
In tabular if a vertical selection is made with the keyboard (e.g.
LFUN_UP_SELECT), the selection is drawn if there are two cells selected.
Previously, the selection would be drawn only if there were more than
two selected.
If you have a selection across cells in tabular, moving the cursor
vertically up or down (e.g. LFUN_UP) now removes the drawn selection.
Before, the selection was set to false but it was not repainted.
Now that we have module support for literate programming, it is possible to do a noweb cleanup. This is basically a patch from Kayvan Sylvan:
- get rid of literate-xxx classes
- rename Scrap to Chunk, since this is the name noweb doc uses (Scrap is from nuweb)
- update lyx file format and add lyx2lyx support for gettting rid of literate-xxx classes
- update documentation
On the top of it, update tex2lyx to
- avoid creating files with literate-xxx class
- fix conflict between parsing << as a quote and parsing it as a Chunk
- create Chunk layouts instead of Scrap ones.
We must group the content which should be changed in size wit a pair of braces because the LaTeX size commands are otherwise switches. We already do so for many case, but not for the case that a size command is inside another command. This patch adds now always a brace pair around the selected text which is the safest method.
Both cvs and svn are able to retrieve non-existing files from repository,
but this was only implemented for rcs. This is a prerequisite for the
planned move and copy VCV operations. I also improved error schecking and
used extractFromVC() also for files specified on the command line if they
do not exist (in GUI mode, it was already the case in non-GUI mode).
It did always point to the buffer's file name, so it is not needed and it was
not used in most cases anyway. Instead, ensure that owner_ is always set and
cannot be changed later.
Actually tex2lyx can handle modules since some time (#5702), but not
theorems (#5776). Now the following issues are fixed:
- Modules that depend on other modules can be loaded, since the dependencies
are loaded first
- Default moduls of the text class are loaded correctly
- \newtheorem is recognized as a command that defines new environments and
treated similar to \newenvironment
With this new command line switch a list of modules can be loaded
unconditionally. This seems to be needed for the literate programming formats,
and it is useful to work around bug #5702 as well.
The listings inset does automatically load the color package if any parameter
contains \color. As mentioned in bug #8066 tex2lyx needs to be aware of this,
so the \usepckage{color} is automatically skipped in these cases.
Next try to make it to work on APPLE (and maybe on WIN32)
a.) Create the needed data-dir at configure time
b.) Use different target names for executable and data created with them
Creating LYX_DATE dynamically at configure-time caused unwanted recompilation
of the whole directories (src + src/tex2lyx) because all the relevant objects
were dependent of a common file (flags.make in case of "Unix makefiles") which changed
accordingly.
There is now a new include (lyx_date.h, with only one definition)
Nothing changes for automake, since in this case LYX_DATE is defined in config.h
buffer-forall only takes one parameter now, which is the LFUN to
dispatch on all non-hidden buffers. A hidden buffer is defined as being
internally open in LyX, but not visible in any window (view).
Thanks, JMarc.
Just some comments on the patch:
- The executable name has to match the information in Info.plist (development/MacOSX/Info.plist.in and CMakeLists.txt). The autoconf config/lyxinclude.m4 file has been modified to make it work with autotools.
- The process to build OS X bundle is to first add all the files to be included to the bundle when calling add_executable (src/CMakeLists.txt) and then by calling setting the source file property of each of these files (development/cmake/Install.cmake, l.14) so that the files are properly located into the bundle. This is also why Install.cmake has to be included two times in src/CMakeLists.txt (once to build the list of files, once to set the location of the list of files).
- in CMakeLists.txt there is a line
install(CODE "set(BU_CHMOD_BUNDLE_ITEMS 1)")
What it does is to fix the owner permissions within the bundle - this is necessary because some libraries are copied within the bundle and might be owned by root
- An empty qt.conf is included in the bundle so that QT does not try to link to other QT libraries (which will not be included in the bundle)
- In development/cmake/Install.cmake, some OS X specific files (*.sdef, qt.conf, *.icns) have to be included in the bundle
Benjamin
The obnoxious messages in Private::setFilter cover any message set by lyx::dispatch. The solution I chose is to return early when the filter is not changed.
If this makes sense, then the same optimization should be added to CategorizedCombo, IMO.
s is a valid horizontal position for framebox (as well as for makebox, which
was already parsed correctly). There was even a test case, but with a wrong
reference.
Instead of annoying the user with an automatically created note in the output
document which she needs to delete manually, determine the document language
automatically for documents that use CJK. This is done using a heuristic which
roughly counts the number of characters in each language and sets the one that
is used most often. This is not perfect, but it works for the two major use
cases: A document with only some CJK parts (in this case the babel language is
used), and a document which is mainly written in one CJK language. It is only
a minor problem if the heuristic is wrong, since the TeX export is still
correct, and there is no spell checking support for CJK anyway.
Now all regression tests do pass except for some relative path issues
depending on the location of the build directory.
The previous output was read correctly by LyX as well, but the new version is
more similar to the files written by LyX. Also update TODO with recent file
format changes.
Commit 7cfac95 got rid of empty lines that were created by removing \usepackage
statements. However, it added an additional newline in case the \usepackage
was not at the end of the line. This is now fixed.
A dummy getGuiMessages function was missing. Instead of adding it everywhere, a new file is created that contains all the dummy functions needed by the tests.
The old fix was incomplete (\verb~\~ was translated to \verb~~ in roundtrip).
The real cause for this bug (and also the mistranslation of \href{...}{\}})
was the misbehaviour of Token::character() (see comment in Parser.h): This
method even returns a character if the category is catEscape, and this is not
wanted in most (all?) cases.
If this option is given, included files will be copied to the output directory.
Also -roundtrip is now allowed with given output file.
-copyfiles is useful if you want to ensure that no file (not even an included
one) is overwritten by a subsequent export from LyX. Both changes are needed
for unit tests that do not write to the source directory.
This adds an optional 'set' argument to the language lfun and reintroduces toggling.
Additions by me reintroduce the possibility to reset to the document language via 'language reset' or just 'language'
This might encourage users to post this information when reporting bugs
and sometimes it's useful to be able to copy the paths of the Library
and User directories.
The input and output file names of tex2lyx may be relative. In this case,
getMasterFilePath() and getParentFilePath() return relative paths as well.
Now the file name translation logic for all kinds of included files can
cope with that.
If the WA is the last one showing a buffer, then the buffer may either be
closed or kept hidden, or the user is asked. The behaviour is controlled
by a new preference option.
For discussion, see http://comments.gmane.org/gmane.editors.lyx.devel/142638
