If enabled, by default loads MathJax from a CDN and forces all equations through MathJax when JavaScript is available -- the image or source form gets used only as <noscript> fallback.
This has a couple of problems for us:
* if scripts are missing -- such as when viewed via MobileFrontend -- you end up with no math at all, as the <script type="math/tex"> bits get ignored but the <noscript> still hides the images.
* while MathJax is loading things, blank spots on the page may appear and stuff jumps around
* if loading new text in via ajax, it doesn't trigger there
Also using some fairly default config, no idea how appropriate it is. Hoping to get some insight from Nageh who's done some of the MathJax work on Wikipedia so far - <https://en.wikipedia.org/wiki/User_talk:Nageh#MathJax_integration_into_stock_MediaWiki>
MathML mode was so incomplete most people thought it simply didn't work (bug 25646).
HTML modes often rendered poorly (eg req bug 24207 to set default to PNG on some sites)
This may cause regressions in that simple "equations" of just variables that came out as HTML
will now render as PNGs that don't get aligned properly with the text baseline. Fixing this is
covered by bug 32694: <https://bugzilla.wikimedia.org/show_bug.cgi?id=32694> to retrieve the
baseline info from dvipng and position images to fit.
Note that because of the way user options are pulled in to the oarser cache key, some folks
may see cached pages with their old settings until they get redone or they save their prefs
again and have it normalized.
The new TEX_FUN1nb introduced by r99741 was not added to the
html_render_deep() pattern matching list. This was spotted by
an ocaml compilation warning:
File "html.ml", line 74, characters 31-2966:
Warning 8: this pattern-matching is not exhaustive.
Here is an example of a value that is not matched:
TEX_FUN1nb (_, _)::_
but \operatorname to fix Bug 31442. More specifically, TEX_FUN1 now
adds braces as it did in previous versions. The result is texvc will
once again correctly sanitize multiple math accents even when no braces are
given (e.g. \dot \vec B) and it will allow math accents to be used with
symbols whose font as been changed (e.g. \tilde \mathcal{M}). Parser
tests are created to ensure these continue to work.
The handling of \operatorname is now handled specially by the
function TEX_FUN1nb (nb stands for no braces and the name is taken to
be consistent with the existing function TEX_FUN2nb). The addition of
braces causes this command to LaTeX incorrectly. The parser test for
\operatorname has been updated to reflect the fact the hash of the
images involved has changed.
* (bug 18912) Add math support for \sen Spanish variant of \sin
* (bug 18912) Fix spacing for \operatorname in math
Reapplies r86962, r87117, r87936, r87941 plus some parser tests.
Note that further batch testing to identify any other potential problems due to the spacing tweaks is a good idea!
Reapplied r87092 (tests added, tweaked for merge, no functional diff) to allow "'" and "`" in \text{...} bits.
I'm not convinced this is a sufficient fix -- there are probably a *lot* more where this came from.
But it doesn't hurt to add them!
May require texlive-lang-greek package to be installed; but it's only loaded when these bits are used.
Reapplied r87298 plus parser test case to confirm the new chars can render and the existing \digamma hasn't changed.
Reapplied r87284 with a tweak to allow \euro through to conservative HTML output.
Parser test case added to confirm that \euro is HTMLable and the other euro variants are renderable to images.
This commit also includes tweaks to HTMLification of \phi, \varphi, and \varepsilon (conservative HTML) and changes the non-conservative HTMLification of number sets from plain letters to the dedicated Unicode chars for their symbols. These changes are not included in tests, but don't alter what input is supported.
Reapplied r86965 (patch by Thenub314), plus parser test case to ensure that \widetilde{x} actually renders. (While we can't compare the contents of the image, the output hash will remain stable in the img url. Forcing $wgMathPath to a fixed fake path for parsertests.
While these mostly look like they seem to do what they claim, *none* of them provide any test cases.
Most don't even include an example in the commit messages.
Fixes: Strict Standards: call_user_func_array() expects parameter 1 to be a valid callback, non-static method MathHooks::onParserTestTables() should not be called statically in /var/www/w/phase3/includes/Hooks.php on line 235
arithmetic operations. In particular in displaying x-2 it should use
the entity − in MathML as well. Also changed spacing so an
opporation such as "+" would render as <mo> + </mo> instead of
<mo>+</mo>.
additional space was necessary in the LaTeX code when rendering
functions such as \sin foo32. Also a few lines of code were removed
from texutil.ml that are now handled by lexer.mll.
been added, but the parser now recognizes numbers containing decimal
points as being renderable using <mn>. The delimiters (,[,{ now render
using <mo> tags, this allows for equations such as "y=f(x)" to be
rendered to MathML. Finally for standard functions such as \sin, now
render as <mi>\sin</mi>⁡, etc so standard function names
are supported.
specifically it provides the archaic greek letters defined in the
teubner package. WARNING: This package requires the greek language
bable package, which on some linux systems is installed separately
from LaTeX. As a result, texvc doesn't try to load this package
unless one of the archaic greek letters is being used. This ensures
that the new commands do not prevent any of the old functionality from
operating as it did before.
The following new commands are recognized. includes \Coppa, \coppa,
\varcoppa (synonym for \coppa), \Digamma, \Koppa (synonym for \Coppa),
\koppa, \Sampi, \sampi, \Stigma, \stigma, and \varstigma.
For more information see the comprehensive symbols table 280. Note
that this update doesn't effect the current functionality of \digamma.
the euro symbol. This requires the eurosym package be available in
the installed LaTeX distribution. Five new commands are now
recognized by texvc: \euro, \geneuro, \geneuronarrow, \geneurowide,
and \officialeuro. All provide varients of the euro symbol, and \euro
is simply short alias for \officialeuro. In addition some minor
changes have been introduced the html rendering of some math symbols.
The new choices provide html symbols that are higher degree of
similarity in comparison to the corresponding LaTeX symbols.
functions are handled in lexer.mll. In particular lexer.mll failed to
insert a space that, in some cases rendering errors. This bug has now
been corrected.
mathematical function names when translating to HTML; adds support for
the sen, the Spanish name for sin; and corrects a bug that eliminates
spacing around \operatorname{...} in the resulting png. More
specifically, texvc now dectect whether or not a
standard function such as is followed by a delimitier such as (, {, [
etc. and adds a space or not as appropriate. This issue The code has been
reorganized to include a list of standard LaTeX commands whose spacing
rules are the same, and treates them all on an equal footing. It
similarly treats functions defined for mediawiki in the same way it
treats standard latex functions. One addition function is added, \sen,
and others can be added easily if necessary. Finally LaTeX generated
by texvc contained to many braces which altered the spacing created by
the command \operatorname, this has now been corrected. These last
two changes address the issues raised in bug 18912 and the chaning in
translation to HTML address most, but not all, of the issues raised in
bug 6722 .
The 'math' table will no longer be created on a default install unless you've explicitly enabled the Math plugin at install time; the usual update.php procedure will add it in.
Postgres, Oracle, MSSQL, and DB2 variants are included -- broken out from the core files -- but have not been tested.
I know there has been some code duplication in parser test infrastructure but could only find one instance of the parser test temporary table setup to remove the 'math' table from (the extension adds it back via the hook). If the phpunit-based runner breaks, please track it down and fix it there too.
