When \multicolumn{ncol}{align}{content} is parsed and the ncol
parameter is not a numeric value, this parameter is swallowed
and replaced with '1'. Hence, if the file is subsequently saved
a dataloss would occur. With this commit, \multicolumn is not
interpreted when ncol is not a numeric value and is left as is.
See also #10466
Math macros can be displayed on screen by providing a different
representation than the one used for latex output. This representation
is actually used by lyx even while it is being updated. This leads to
printing useless error messages on the terminal. For example, a macro
parameter has to be entered as \#1 and, if the macro is already used in
a math inset, lyx prints on terminal the error message "Math parse error:
missing token after \\" as soon as one hits the \ key, followed by
"MathMacroArgument::MathMacroArgument: wrong Argument id: -48" as soon as
one hits the # key. So, this is not a useful information and simply
clutters the terminal output. On the other hand, the input is sanitized
even if one stops input after hitting either \ or #, so that no further
messages are issued. Hence, those error messages are simply pointless.
This was dead code that did never work, and most of it was boilerplate that
you can steel in 15 minutes from any existing math inset. Apart from that it
did contain a pointer to InsetXYMatrix which would create the same problems
we saw with the macros.
This is a mechanical replacement. For now it seems that unique_ptrs are
essentially used for exception-safety. More could certainly be done to clarify
pointer ownership in general.
The test case did show several problems:
- The alignment argument was not parsed correctly if it was not in braces
- There one column too much created, since I did not take into account that
the current cell must bge replaced by the multicolumn cell
- If the last line of an array contained only an empty multicolumn cell, then
the complete multicolumn was swallowed
- The decision whether to output the column separator & was sometimes wrong
for multicolumns
The math parser could not handle multicolumn grids. This is a problem because
there is no true ERT in math (everything is parsed).
Now multicolumn cells are parsed correctly. The display is also somewhat OK,
but apart from that any multicolumn related UI is missing. Since the file
format change is now done the UI can be added at any later point. The most
important part of bug 396 is now fixed: tex2lyx does not create invalid .lyx
files anymore for formulas containing \multicolumn.
I updated the tex2lyx test cases that produce correct output. tex2lyx does
still produce invalid output for the test cases which are not updated because
of the previous format change.
Thanks to Enrico, who noticed that the previous fix did not take into account
the case of nonempty length argument + the next line beginning with [.
Now the parsing is exactly the inverse of InsetMathGrid::eolString().
There was an unsymmetry between reading and writing: InsetMathGrid::eolString()
adds curly braces if the first cell of the next line starts with [ to prevent
misparsing as optional argument of \\. These braces were not removed on reading.
This is mainly needed to reduce the amount of ERT if you convert AMS example
documents with tex2lyx. No GUI support is needed, since \notag is equivalent
to \nonumber.
This is a follow-up of bug #8967. The implementation is self-explaining, the
only part which needs a comment is lyx2lyx: Since a 100% correct solution is
not possible, it has been decided not to switch amsmath off in the forward
conversion if no other ams command than \smash[t] and \smash[b] is used, but
to consider it a bug that older versions do not load amsmath automatically for
these commands. In the backward direction it is easy to keep the document
compilable, so just do that.
The math parser aborts with an error message on \begin{align} and
\begin{align*} if this is not the hull inset. This is now fixed, however
this is not complete support for these two environments (the GUI does not
respect the numbering). It is only the minimal fix that ensures that no data
loss occurs for documents imported by tex2lyx.
This comes from trying to run tex2lyx on the AMS math test document
testmath.tex. Both \(...\) and \begin{math}...\end{math} are defined as
inline math formulas in standard LaTeX. tex2lyx recognizes this, but the
math parser in LyX did not handle "\begin_inset Formula \(" and
"\begin_inset Formula \begin{math}" correctly.
The fix is simple and safe: If we are in undecided mode (this is only true
for the first token of a math inset), create a hull inset of the respective
kind. Otherwise, handle the commands as before.
When adding native support for \smash in 18779013 I overlooked that amsmath
redefines \smash to take an optional argument t or b. These optional
arguments are not parsed correctly anymore (bug 8967). This change fixes
the regression, so that \smash with optional argument appears in red, as it
was before th introduction of the native smash inset.
In the future, we should have native support for \smash[t] and \smash[b]
as well, but this would be a file format change (automatic amsmath loading),
and it is too late for 2.1.0.
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.
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.
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.
This is not needed, since LyX supports comments in math. Data loss with math
comments containing a backslash in LyX has been fixed as well.
The test case was found in bug #8104.
If the stream is good (i.e. there are still tokens) and we expect an
argument, we call getArg(). However, if there are only spaces, the stream
suddenly isn't good anymore after 'skipSpaces' and we would get an error
when calling 'getChar'. Therefore we have to check whether the stream is
still good.
If the stream is not good, we don't need to 'putback', because we didn't
read anything yet. If we now do rewind the stream, we are asking for
problems as in bug #8089.
This was introduced in [3cafb856\lyxgit] to fix bug #4318.
Math commands need it as well as text commands. At the same time, this
further unifies the checking for termination and fixes cases of wrong
output (e.g. for 0x2005).
Internal machinery, no file format change and no UI change yet
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@40562 a592a061-630c-0410-9148-cb99ea01b6c8
now) and move more packages to the new exclude mechanism.
The remaining ones are not so easy.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@40442 a592a061-630c-0410-9148-cb99ea01b6c8
- Interpret argument of LFUN_SPACE_INSERT correctly
- Use InsetMathSpace instead of InsetMathSpecialChar for "\ " (bug # 7728)
- Use InsetMathSpace instead of InsetMathChar for ~ (bug # 7728).
This fixes also the display in LyX (previously a literal ~ was displayed).
Using InsetMathSpace enables also the "Insert Formatting" menu entries.
No file format change is needed, since the LaTeX export is unchanged.
Note that there are still some bugs related to spaces in math:
#7746, #7747, #7749, #7842
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@39947 a592a061-630c-0410-9148-cb99ea01b6c8
- \negmedspace and \negthickspace outside of math
- \enspace, \hspace*, \hspace*{\fill} and \hfill inside math
(fileformat change)
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@39557 a592a061-630c-0410-9148-cb99ea01b6c8
Using updateMacros() entails a performance hit when loading a document
with really a lot of macros. So, revert to the original strategy of
tracking macros at creation time. In order to also account for macros
defined in a child document, the child is now loaded by the include inset
at construction time instead of after the master has finished loading.
This strategy mimics what updateMacros() was accomplishing without
incurring in its drawbacks, such that loading time is practically
unchanged even with a thousand macros.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@36968 a592a061-630c-0410-9148-cb99ea01b6c8
empty line of substack, tabular and xymatrix, but not calling delEmptyLastRow
for them.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@34763 a592a061-630c-0410-9148-cb99ea01b6c8
deleted not only for "array" but also for all inner-hull grid types.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@34752 a592a061-630c-0410-9148-cb99ea01b6c8
This patch essentially reverts r30795 and also provides the correct fix
for #2969.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@34751 a592a061-630c-0410-9148-cb99ea01b6c8
The fileformat change is also needed because of our mistake that we load mhchem since LyX 1.6.4 automatically so that files created with LyX 1.6.4 won't compile under LyX 1.6.3. Now at least all files created or opened with LyX 1.7 can be reverted to the fileformat of LyX 1.6.x and can therefore be read by all LyX 1.6.x versions.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@31941 a592a061-630c-0410-9148-cb99ea01b6c8
performance problems when loading documents with lots of macros.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@31907 a592a061-630c-0410-9148-cb99ea01b6c8
