* Fix roots
* Update screenshots
* Added a test in a craven gambit to get a green check mark
* Adjust small radicals
* Fix lint error
* Update screenshots
* Support \pmb
* Fix lint error
* Add phony screenshots
* Screenshots take two
* Screenshots take three
* Simplify copies
* Move determination of mclass from handler to htmlBuilder
* Change to a macro definition
* Update screenshots
* Pick up review comments
* Clean up nesting of braces
* Update screenshot
* Support \genfrac and \above
* Accommodate delimiters inside groups
* Update screenshots take one`
* Update screenshots take two
* Fix flow error
* Fix lint error
* Automatic mrel/mbin spacing for \boldsymbol
Fix#1154
* Add test
* Add missing mode
* Separate out \boldsymbol support to correct flow types
* Fix ternaries thanks to @ronkok's comment
* Revert package-lock.json
* Add screenshot test
* Support \hdashline
Support `\hdashline` from package `arydshln`. This PR acts as a complement to PR #1395.
Similarly to #1395, the dashed line is rendered as `border-bottom-style: dashed;`. That does not exactly match the `dashsegment` and `dashgap` lengths in `arydshln`, but it does render black lines with sharp edges.
* Fixed top line position
* Add screenshots
* Fix lint error
* Fix another lint error
* Deleted HLine screenshots
* Pick up comments
* Fix ligatures not always triggering
Example: \text{\rm --} would not cause ligature but should
* Remove ligatures in \texttt mode
* Add screenshot tests
* Fix MathML ligatures
* Fix type
* Handle \text... fonts in MathML building
* Remove leftover console deubgging
* hacked together a dashed vertical bar
* Updated tests and spec.
* tidied up the screenshot template for arrays
* added the vertical lines at the end back
* Updated screenshots for arrays
* Fix \cancel
Fixes#1080.
Improve `\cancel` in three ways:
1. Better lateral spacing.
2. Steeper `\cancel` lines on single characters.
3. Treat height and depth to match the `cancel` package behavior, not its documentation.
* Update screenshots
* Support \cfrac
This was an easier PR to write than #135 since KaTeX now has well established methods for pt-to-em conversions and nulldelimiter.
As in #135, this does not support the LaTeX optional argument for numerator justification. It supports a `\cfrac #1#2 ` syntax.
* Added screenshotter files
* fix ref to context in genfrac handler
* Fix lap vertical alignment.
Fixes issue #1153.
* Fix horizontal alignment
Wrap the entire lap pair with a mord.
* Support Unicode \ll and \lll
Fixes issue #1271
* Update screenshots
* Update screenshots
* generated updated screenshots for Lap
* Change double strut to single strut
* Delete screenshotter test
* Add (commented out) test
* Fix mis-spelled word
* Tag sketch
* Drop objectAssign; already using Object.assign elsewhere
* Basic \gdef support
* Bug fix
* Finish \tag
* MathML numbers equations with <mlabeledtr>
* Fix flow bugs
* \gdef tests
* Add basic \tag tests
* Screenshot test for \tag
* \tag* test
* Add missing file
* Bug fix screenshot
* Major refactor
* Represent tag at top level of parse tree, requiring less hackery
* No more \@tag function; it was essentially just doing \text
* Wrap tag in group so e.g. ( and ) are formatted the same
* Add `feed` method to MacroExpander for multiple inputs (for tag)
* Bug fixes in buildHTML, makeTextRow, _getBuilt (for display mode)
* Remove excess <mrow> wrapper when unnecessary
* Update screenshot from tag being wrapped in group
* Add maxExpand limit
* Support for top-level \newline and \\ in inline math
This was a little tricky because `\\` was defined as an endOfExpression.
Instead made `\\` a termination specific to an array environment.
Outside an array environment, buildHTML handles the `cr` object,
resulting in a `.newline` class. Currently this turns into a
`display: block` (with appropriate vertical spacing) only in inline math,
matching LaTeX.
* Simplify code
* Fix Jest errors
* NewLine screenshot test
* Bug fix: \\ only works at top level of inline
* Add \newline and \cr to test
* Switch test to pmatrix
* Add vertical space test
* Add \\ vs. \newline tests
* Fix flow errors
* Add \cr test
* Add documentation for \\ at top level
* Comment out newRow
* Fix commenting out
* Line breaks for inline formulas
* Basic support for \allowbreak and \nobreak
* Fix spacing around \nobreak, and add documentation
* Backwards-compatibility _getBuilt to fix tests
* Put operator spacing on same line as operator
* One approach to ~
* Simplify \allowbreak/\nobreak, make ~/\nobreakspace prevent line breaks
* Adapt to #1295
* Prevent wrapping within a .base
* Implement \hspace* properly
* Fix flow error
* Update comment for regularSpace
* Update screenshots
* Move `width: min-content` from .katex into .base
* Fix screenshot
* Add min-width rule to .vlist-s
* Factor out hasClass method
* Cleanup nobreak test
* Pull out buildHTMLUnbreakable
* Fix \hspace* test (no longer the same as \hspace)
* Fix \nobreak handling
* Add screenshot test
* Support Unicode \ll and \lll
Fixes issue #1271
* Adjust \underset alignment and spacing
Fixes issue #1288.
1. Fixes vertical alignment by keeping the base element on the baseline.
2. Assigns horizontal spacing to \underset in a manner that aligns with LaTeX `\binrel`
* Fix flow error
* Add comment
* Allow for shift of mathops
* Update screenshots
* Test for nested ordgroups
* Set \stackrel spacing class to mrel
* Fix lint error
* Better determination of atom type
* Add comment.
* Add `suppressBaseShift` to ParseNodeTypes
* \textasciitilde and fix ~ in \verb
* Add support for `\textasciitilde` which reproduces tilde character
in text mode.
* Make `~` render as tilde instead of space within `\verb`,
by manually mapping that character to `\textasciitilde`.
This seems to be the only character that needs such manual mapping
to reproduce LaTeX's `\verb` behavior.
* Add `, -, ', ~ to Verb screenshot test
* Support some Unicode Mathematical Alphanumeric Symbols
This PR adds support for some of the characters in Unicode range U+1D400 to U+1D7FF, [Mathematical Alphanumeric Symbols](https://www.unicode.org/charts/PDF/U1D400.pdf). Specifically, it adds support for:
* A-Z a-z bold
* A-Z a-z bold italic
* A-Z a-z Fractur
* A-Z a-z sans-serif
* A-Z double struck
• A-Z script
Addresses issue #1215 and parts of #260.
* Fix lint error
* Fix MathML, and pick up review comments
* Fix lint error
* Add text mode. Remove sans-serif.
* Fix lint error
* Fixed \mathrm, added screenshotter test
* Change screenshotter test to an array
* Add screenshots
* Picked up review comments. Add characters
* Fix \underset
This PR modifies `\underset` and `\overset` to align with LaTeX behavior when a superscript is applied after the `\underset`. Fixes issue #1275.
I also changed the spacing from KaTeX `mop` to KaTeX `rmel`. The result seems to be a closer visual match to LaTeX.
* Update screenshots
* Work around negative space bug in Chrome
Fix#984
The screenshot test is still somewhat defective, showing a space before
the "post" text (a period). This seems limited to the screenshotter, however,
as it works fine in the tester via
http://localhost:7936/?text=%5Cfbox%7B%5C%241%2C%5C!000%2C%5C!000%7D%5CKaTeX&display=0&after=.
* Update screenshots
* Switch to inherited `width: min-content`
* Support Reaction Arrows
This PR is written to supply reaction arrows for a future `mhchem` extension. `mhchem` uses seven reaction arrows. Four of them correspond to extensible arrows already available in KaTeX. This PR creates the other three.
These arrows will also be useful to chemists writing about reactions when `mhchem` is unavailable.
Three new extensible arrows are introduced: `\xrightleftarrows`, `\xrightequilibrium`, and `\xleftequilibrium`.
These names are not `mhchem`’s user-facing function names. In `mhchem`, users would call these arrows with syntax such as: `\ce{A<-->B}`, or `\ce{A<=>>B}`, or `\ce{A<<=>B}`. I’ve provided names that look more like the other extensible arrow names. That’s probably worth some discussion.
* generate screenshots for ReactionArrows
* Increase overlap in arrow shaft
To prevent a small gap when rendering in very large font sizes.
* Adjust upper text vert alignment. Add warning.
* Limit alignment adjustment to \xleftequilibrium
* generate screenshots for reaction arrows
* update fonts and metrics so that accents are positioned correctly
* fix degree symbol, move more accents into the 0x2c0-0x2df range
* fix accents in Unicode screenshots
* update jest snapshots, update AccentsText to include requested characters
* update fonts submodule, add unicode chars to AccentsText test
* update submodules after merging its PR
We want to inherit CSS properties that apply to both text and SVG
but we don't want to inherit styles that affect SVG without affecting text.
This patch adds a screenshot test to verify this.
* Make accents zero width
Make the width of an accented character equal to the width of the character,
by making accents zero width. In particular, fixes#1028 (`\ddot\imath`).
This involved reworking all of the accent offset machinery, in particular
skew and accent-hungarian. A bit cleaner now.
Also added support for the new width character metrics in symbolNode.
* Update AccentsText test
* Fix comment
* Adding support for SansSerif-Bold
* Updating to include SansSerif Italic.
* WIP
* Working text stacking
* More robust screenshot.
* Don't want to break users :)
* Updating per PR comments.
* Fixing Unicode and updating snapshots.
* Adding suggested tests.
* Opting to use old method for unit testing.
* Adding TODO
* added support for \boldsymbol
* added \boldsymbol tests
* added \boldsymbol screenshots
* added \bm, snapshot, updated screenshots
* updated snapshot for \boldsymbol
* properly display \imath and 2 in boldsymbol
* implemented \boldsymbol for +
* fix typo, remove boldsymbolLetters hardcode
* make comment about using Main-Bold more general
* fixed trailing space CI error
* Refactor \kern, proper \mkern support, add \hskip
* Move \kern, \mkern into functions directory
* Add \hskip, \mskip support (but without supporting plus/minus)
* Properly separate \kern, \hskip from \mkern, \mskip.
(The former work in both modes, and don't support mu units.
The latter work only in math mode and only support mu units.)
* Render \kern etc. using MathML <mspace>
* Implement \TeX macro
* Implement \LaTeX
* New KaTeX logo \katex
* Rename hskip.js -> kern.js
* Tweak katex \kern to 0.16em
* \katex kern -.17em
* Compute A raise height in \LaTeX and \katex
* Switch mu unit errors to warnings
* LaTeX screenshot test
* Replace \KaTeX with macro definition
* Update screenshots with \KaTeX in them
* Fix font selection for \*TeX macros
* Change \undeertilde to \utilde
In PR #670, I made an error. The function that should have been `\utilde` I named instead `\undertilde`.
There is an `\undertilde` from the `wsuipa` package, but it is a text-mode non-stretchy function. The proper command name is `\utilde`, a math-mode, stretchy function from packge `undertilde`.
This PR fixes my error.
* Fix screenshotter test
This PR implements `\mathchoice` function.
I once created PR on the wrong branch. Sorry for the mess.
This is particularly useful when one defines custom macro for "big operators".
For example:
```latex
\newcommand{\infdisj}{%
\mathop{%
\mathchoice{% display
\bigvee\hspace{-2ex}\bigvee%
}{ % inline
\bigvee\hspace{-1.75ex}\bigvee%
}{ % script
\bigvee\hspace{-1.4ex}\bigvee%
}{ % scriptscript
\bigvee\hspace{-1ex}\bigvee%
}}}
```
* Implements the alignat environment for flexible math spacing
* Renames alignat[*] to alignedat and factors out duplicate code of aligned and alignedat as alignedHandler
* Adds aligned at to screenshotter
* alignedat screenshots
* Implements the alignat environment for flexible math spacing
* Renames alignat[*] to alignedat and factors out duplicate code of aligned and alignedat as alignedHandler
* Adds aligned at to screenshotter
* alignedat screenshots
* fix style nit
* fix lint
* Implement \verb
* Implement @gagern's comments
* \verb: look up characters one at a time.
* Add screenshot test for \verb
* Add error tests for \verb
* Include space symbol in typewriter font, and fix single quotes
This is based on https://github.com/Khan/MathJax-dev/pull/2
which hasn't been accepted yet at the time this commit is made.
* Add \verb* tests
* \verb should use Typewriter-Regular font!
* Switch \verb to use text mode and no-break space.
* Screenshot update with Typewriter-Regular
* \verb test: fix *, add commas to make spaces clear
* Fix spaces and style handling
* Implement @kevinbarabash's comments
* Make error clearly an assertion failure
* verb screenshot for Chrome
