mirror of
https://github.com/Smaug123/KaTeX
synced 2025-10-10 13:38:39 +00:00
2aee354ca2
* 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
344 lines
16 KiB
YAML
344 lines
16 KiB
YAML
# List of test cases for which we create screenshots and other documents.
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# Each value in the top level dictionary is either a string or a dict
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# which may contain the following keys:
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# - tex: the KaTeX input string
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# - pre: some HTML to insert before the KaTeX content
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# - post: some HTML to insert after the KaTeX content
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# - display: set this to 1 in order to use display style
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# - styles: an optional value for the HTML style="" attribute
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# of the <span> element that contains the KaTeX output
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#
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# Note that YAML will treat a value starting in { as a flow mapping.
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# To avoid that, either enclose the value in '…' or use a block scalar style,
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# writing | (or >) as the first symbol of the value and then continuing
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# on the next line. See http://www.yaml.org/ for syntax details.
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Accents: \vec{A}\vec{x}\vec x^2\vec{x}_2^2\vec{A}^2\vec{xA}^2
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AccentsText: |
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\begin{array}{l}
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\text{\'\i} & \text{\.\i} & \text{\`\i} & \text{\"\i} & \text{\H\i} & \text{\r\i} \\
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\text{\'\j} & \text{\.\j} & \text{\`\j} & \text{\"\j} & \text{\H\j} & \text{\r\j} \\
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\text{\'a} & \text{\.a} & \text{\`a} & \text{\"a} & \text{\H{a}} & \text{\r{a}} \\
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\text{\'A} & \text{\.A} & \text{\`A} & \text{\"A} & \text{\H{A}} & \text{\r{A}} \\
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\text{\.I İ} & \text{\H e e̋} & \text{\i ı}
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\end{array}
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Aligned: |
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\begin{aligned}
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a &= 1 & b &= 2 \\
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3a &= 3 & 17b &= 34
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\end{aligned}
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Alignedat: |
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\begin{alignedat}{3}
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a &= 1 & b &= 2 &\quad c &= 3\\
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3a &= 3 & 17b &= 34 &\quad 400c &= 1200
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\end{alignedat}
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Arrays: |
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\left(\begin{array}{|rl|c||}
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1&2&3\\
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1+1&2+1&3+1\cr1\over2&\scriptstyle 1/2&\frac12\\[1ex]
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\begin{pmatrix}x\\y\end{pmatrix}&0&\begin{vmatrix}a&b\\c&d\end{vmatrix}
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\end{array}\right]
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ArrayMode:
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tex: |
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\begin{matrix}
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\frac{\partial^2 f}{\partial x_1^2} & \frac{\partial^2 f}{\partial x_1\,\partial x_2} & \cdots & \frac{\partial^2 f}{\partial x_1\,\partial x_n} \\
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\frac{\partial^2 f}{\partial x_2\,\partial x_1} & \frac{\partial^2 f}{\partial x_2^2} & \cdots & \frac{\partial^2 f}{\partial x_2\,\partial x_n} \\
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\vdots & \vdots & \ddots & \vdots \\
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\frac{\partial^2 f}{\partial x_n\,\partial x_1} & \frac{\partial^2 f}{\partial x_n\,\partial x_2} & \cdots & \frac{\partial^2 f}{\partial x_n^2}
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\end{matrix}
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display: 1
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ArrayType: 1\begin{array}{c}2\\3\end{array}4
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ArrayRemoveEmptyLine: |
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\begin{pmatrix}
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1 \\
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2 \\
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\end{pmatrix}
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Baseline: a+b-c\cdot d/e
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BasicTest: a
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BinCancellation: |
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\begin{array}{cccc}
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+1 & 1+ & 1+1 & (,) \\
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1++1 & 3\times) & 1+, & \left(,\right)
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\end{array}
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BinomTest: \dbinom{a}{b}\tbinom{a}{b}^{\binom{a}{b}+17}
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BoldSpacing: \mathbf{A}^2+\mathbf{B}_3*\mathscr{C}'
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BoldSymbol: \sum_{\boldsymbol{\alpha}}^{\boldsymbol{\beta}} \boldsymbol{\omega}+ \int_{\boldsymbol{\alpha}}^{\boldsymbol{\beta}} \boldsymbol{\Omega}+\boldsymbol{Ax2k\omega\Omega\imath+}
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Boxed: \boxed{F=ma} \quad \boxed{ac}\color{magenta}{\boxed{F}}\boxed{F=mg}
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Cases: |
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f(a,b)=\begin{cases}
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a+1&\text{if }b\text{ is odd} \\
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a&\text{if }b=0 \\
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a-1&\text{otherwise}
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\end{cases}
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Colors:
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tex: \blue{a}\textcolor{#0f0}{b}\textcolor{red}{c}
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nolatex: different syntax and different scope
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ColorImplicit: bl{ack\color{red}red\textcolor{green}{green}red\color{blue}blue}black
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ColorSpacing: \textcolor{red}{\displaystyle \int x} + 1
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Colorbox: a \colorbox{teal} B \fcolorbox{blue}{red}{C} e+\colorbox{teal}x
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DashesAndQuotes: \text{``a'' b---c -- d----`e'-{-}-f}--``x''
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DeepFontSizing:
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tex: |
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a^{\big| x^{\big(}}_{\Big\uparrow} +
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i^{i^{\Huge x}_y}_{\Huge z} +
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\dfrac{\Huge x}{y}
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nolatex: \Huge inside \dfrac doesn't work, needs an extra {…}
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DelimiterSizing: |
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\bigl\uparrow\Bigl\downarrow\biggl\updownarrow
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\Biggl\Uparrow\Biggr\Downarrow\biggr\langle\Bigr\}\bigr\rfloor
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DisplayMode:
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tex: \sum_{i=0}^\infty \frac{1}{i}
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pre: pre
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post: post
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display: 1
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DisplayStyle: |
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{\displaystyle\sqrt{x}}{\sqrt{x}}
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{\displaystyle \frac12}{\frac12}{\displaystyle x^1_2}{x^1_2}
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Dots: |
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\begin{array}{l}
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\cdots;\dots+\dots\int\dots,\dots \\
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\cdots{};\ldots+\ldots\int\ldots,\ldots
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\end{array}
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Exponents: a^{a^a_a}_{a^a_a}
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ExtensibleArrows: |
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\begin{array}{l}
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\xrightarrow[ab]{ABC} + \xRightarrow{ABC} \\
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\xrightleftharpoons[ab]{ABC} + \xhookrightarrow[ab]{ABC} \\
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\xtwoheadrightarrow{ABC} + \frac{\xrightarrow[ab]{ABC}}{\xrightarrow[ab]{ABC}} + \left\lvert\xrightarrow[ab]{ABC}\right\rvert
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\end{array}
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FractionTest: \dfrac{a}{b}\frac{a}{b}\tfrac{a}{b}\;-\dfrac12\;1\tfrac12\;{1 \atop 2}
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Functions: \sin\cos\tan\ln\log
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Gathered: |
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\begin{gathered}
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x = \frac{1}{2} \\
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y = \sum_{i=1}^n i
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\end{gathered} \approx
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\begin{array}{c}
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x = \frac{1}{2} \\
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y = \sum_{i=1}^n i
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\end{array}
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GreekLetters: \alpha\beta\gamma\omega
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GreekUnicode: \frac{αβγδεϵζηθϑικλμνξοπϖρϱςστυφϕχψω}{ΓΔΘΞΠΣΦΨΩ\mathbf{Ω}\mathbf{\Omega}}
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GroupMacros:
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macros:
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\startExp: e^\bgroup
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\endExp: \egroup
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tex: \startExp a+b\endExp
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HorizontalBraces: \overbrace{\displaystyle{\oint_S{\vec E\cdot\hat n\,\mathrm d a}}}^\text{emf} = \underbrace{\frac{q_{\text{enc}}}{\varepsilon_0}}_{\text{charge}}
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KaTeX:
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tex: \KaTeX
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nolatex: \KaTeX not supported by LaTeX
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Kern:
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tex: \frac{a\kern{1em}b}{c}a\kern{1em}b\kern{1ex}c\kern{-0.25em}d
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nolatex: LaTeX fails to typeset this, “Missing number, treated as zero.”
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Lap: ab\mathllap{f}cd\mathrlap{g}hij\mathclap{k}lm \; ab\llap{f}cd\rlap{g}hij\clap{k}lm
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LargeRuleNumerator: \frac{\textcolor{blue}{\rule{1em}{2em}}}{x}
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LaTeX: \text{\LaTeX}, \text{\TeX}
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LeftRight: \left( x^2 \right) \left\{ x^{x^{x^{x^x}}} \right.
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LeftRightListStyling: a+\left(x+y\right)-x
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LeftRightMiddle: \left( x^2 \middle/ \right) \left\{ x^{x^{x^{x^x}}} \middle/ y \right.\left(x\middle|y\,\middle|\,z\right)
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LeftRightStyleSizing: |
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+\left\{\rule{0.1em}{1em}\right.
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x^{+\left\{\rule{0.1em}{1em}\right.
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x^{+\left\{\rule{0.1em}{1em}\right.}}
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LimitControls: |
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\displaystyle\int\limits_2^3 3x^2\,dx + \sum\nolimits^n_{i=1}i +
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\textstyle\int\limits_x^y z
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LowerAccent: |
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\begin{matrix}
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\underleftarrow{AB} \quad \underrightarrow{AB} \quad \underleftrightarrow{AB} \quad \undergroup{AB} \\
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\underlinesegment{AB} \quad \utilde{AB} \quad \color{green}{\underrightarrow{AB}} \\
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\underrightarrow{F} + \underrightarrow{AB} + \underrightarrow{AB}^2 + \underrightarrow{AB}_2 \\
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\frac{\underrightarrow{AB}}{\underrightarrow{AB}} + \sqrt{\underrightarrow{AB}} + \left\lvert\underrightarrow{AB}\right\rvert
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\end{matrix}
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MathAtom: a\mathrel{\mathop{=}\limits^{\blue ?}}b
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MathAtom2: \mathop{\overline{\mathrm{lim}}}\limits_{x\to\infty}f(x)
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MathChoice: |
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{\displaystyle\mathchoice{D}{T}{S}{SS}} {\textstyle\mathchoice{D}{T}{S}{SS}} {\scriptstyle \mathchoice{D}{T}{S}{SS}} {\scriptscriptstyle\mathchoice{D}{T}{S}{SS}} \displaystyle X_{\mathchoice{D}{T}{S}{SS}_{\mathchoice{D}{T}{S}{SS}}}
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MathDefaultFonts: Ax2k\breve{a}\omega\Omega\imath+\KaTeX
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MathBb: \mathbb{Ax2k\breve{a}\omega\Omega\imath+\KaTeX}
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MathBf: \mathbf{Ax2k\breve{a}\omega\Omega\imath+\KaTeX}
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MathCal: \mathcal{Ax2k\breve{a}\omega\Omega\imath+\KaTeX}
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MathFrak: \mathfrak{Ax2k\breve{a}\omega\Omega\imath+\KaTeX}
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MathIt: \mathit{Ax2k\breve{a}\omega\Omega\imath+\KaTeX}
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MathOp: a\mathop+b\mathop:c\mathop{\delta}e\mathop{\textrm{and}}f\mathrel{\mathop{:}}=g\sin h
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MathRm: \mathrm{Ax2k\breve{a}\omega\Omega\imath+\KaTeX}
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MathSf: \mathsf{Ax2k\breve{a}\omega\Omega\imath+\KaTeX}
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MathScr: \mathscr{Ax2k\breve{a}\omega\Omega\imath+\KaTeX}
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MathTt: \mathtt{Ax2k\breve{a}\omega\Omega\imath+\KaTeX}
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Mod: |
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\begin{array}{cc}
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a \bmod 2 & b \pod 3 \\
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c \pmod{4} & d \mod{56} \\
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\displaystyle a\bmod 2 & \displaystyle b \pod 3 \\
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\displaystyle c\pmod{4} & \displaystyle d \mod{56}
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\end{array}
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ModScript: |
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\begin{array}{cc}
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\scriptstyle a\bmod 2 & \scriptstyle b \pod 3 \\
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\scriptstyle c\pmod{4} & \scriptstyle d \mod{56}
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\end{array}
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ModSpacing: |
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\begin{array}{l}
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(a \cdot b) \bmod 257 \\
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(a \cdot b) \mkern1mu\mathbin{\mathrm{mod}}\mkern1mu 257 \\
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(a \cdot b) \mathbin{\mathrm{mod}} 257
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\end{array}
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NegativeSpaceBetweenRel: A =\!= B
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NestedFractions: |
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\dfrac{\frac{a}{b}}{\frac{c}{d}}\dfrac{\dfrac{a}{b}}
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{\dfrac{c}{d}}\frac{\frac{a}{b}}{\frac{c}{d}}
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Not: |
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\begin{array}{l}
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\not=\not>\not\geq\not\in\not<\not\leq\not{abc} \\
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\not xy + ab \not xy
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\end{array}
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NullDelimiterInteraction: a \bigl. + 2 \quad \left. + a \right)
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OldFont: |
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\begin{matrix}
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\rm rm & it & \it it & \bf bf & \sf sf & \tt tt \\
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\text{\rm rm} & \text{rm} & \text{\it it} & \text{\bf bf} & \text{\sf sf} & \text{\tt tt} \\
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i\rm r\it i & \text{r\it i\rm r}
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\end{matrix}
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OperatorName: |
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\begin{matrix}
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\operatorname g (z) + 5\operatorname{g}z + \operatorname{Gam-ma}(z) \\
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\operatorname{Gam ma}(z) + \operatorname{\Gamma}(z) + \operatorname{}x
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\end{matrix}
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OpLimits: |
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\begin{matrix}
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{\sin_2^2 \lim_2^2 \int_2^2 \sum_2^2}
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{\displaystyle \lim_2^2 \int_2^2 \intop_2^2 \sum_2^2} \\
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\limsup_{x \rightarrow \infty} x \stackrel{?}= \liminf_{x \rightarrow \infty} x
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\end{matrix}
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OverUnderline: x\underline{x}\underline{\underline{x}}\underline{x_{x_{x_x}}}\underline{x^{x^{x^x}}}\overline{x}\overline{x}\overline{x^{x^{x^x}}} \blue{\overline{\underline{x}}\underline{\overline{x}}}
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OverUnderset: |
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\begin{array}{l}
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x\overset?=1\\
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{\displaystyle\lim_{t\underset{>0}\to0}}\\
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a+b+c+d\overset{b+c=0}\longrightarrow a+d\\
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\overset { x = y } { \sqrt { a b } }
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\end{array}
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Phantom: \dfrac{1+\phantom{x^{\blue{2}}} = x}{1+x^{\blue{2}} = x} \left(\vphantom{\int_t} zzz \right) \left( X \hphantom{\frac{\frac X X}{X}} \right)
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PrimeSpacing: f'+f_2'+f^{f'}
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PrimeSuper: x'^2+x'''^2+x'^2_3+x_3'^2
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Raisebox: \frac{a}{a\raisebox{0.5em}{b}} \cdot \frac{a\raisebox{-0.5em}{b}}{a} \cdot \sqrt{a\raisebox{0.5em}{b}} \cdot \sqrt{a\raisebox{-0.5em}{b}} \cdot \sqrt{a\raisebox{0.5em}{b}\raisebox{-0.5em}{b}}
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ReactionArrows: |
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\begin{matrix}
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A \xrightleftarrows{} B \xrightequilibrium{} C \xleftequilibrium{} D \\
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A \xrightleftarrows{over} B \xrightequilibrium{over} C \xleftequilibrium{over} D
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\end{matrix}
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RelativeUnits: |
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\begin{array}{ll}
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a\kern1emb^{a\kern1emb^{a\kern1emb}} &
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{\footnotesize a\kern1emb^{a\kern1emb^{a\kern1emb}}} \\
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a\mkern18mub^{a\mkern18mub^{a\mkern18mub}} &
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{\footnotesize a\mkern18mub^{a\mkern18mub^{a\mkern18mub}}} \\
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\rule{1em}{1em}^{\rule{1em}{1em}}\rule{18mu}{18mu}^{\rule{18mu}{18mu}} &
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{\footnotesize\rule{1em}{1em}^{\rule{1em}{1em}}\rule{18mu}{18mu}^{\rule{18mu}{18mu}}}
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\end{array}
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RlapBug: \frac{\mathrlap{x}}{2}
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Rule: \rule{1em}{0.5em}\rule{1ex}{2ex}\rule{1em}{1ex}\rule{1em}{0.431ex}
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SizingBaseline:
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tex: '{\tiny a+b}a+b{\Huge a+b}'
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pre: x
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post: M
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Sizing: |
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{\Huge x}{\LARGE y}{\normalsize z}{\scriptsize w}\sqrt[\small 3]{x+1}
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Smash: \left( X^{\smash 2} \right) \sqrt{\smash[b]{y}}
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Spacing: |
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\begin{matrix}
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^3+[-1][1-1]1=1(=1)\lvert a\rvert~b \\
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\scriptstyle{^3+[-1][1-1]1=1(=1)\lvert a\rvert~b} \\
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\scriptscriptstyle{^3+[-1][1-1]1=1(=1)\lvert a\rvert~b} \\
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\end{matrix}
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Sqrt: |
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\sqrt{\sqrt{\sqrt{x}}}_{\sqrt{\sqrt{x}}}^{\sqrt{\sqrt{\sqrt{x}}}
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^{\sqrt{\sqrt{\sqrt{x}}}}}
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SqrtRoot: |
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1+\sqrt[3]{2}+\sqrt[1923^234]{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^{2^2}}}}}}}}}}}
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StackRel: a \stackrel{?}{=} b \stackrel{\text{def}}{=} c
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StretchyAccent: |
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\begin{array}{l}
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\overrightarrow{AB} \quad \overleftarrow{AB} \quad \Overrightarrow{AB} \quad \overleftrightarrow{AB} \quad \overgroup{AB} \\
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\overlinesegment{AB} \quad \overleftharpoon{AB} \quad \overrightharpoon{AB} \quad \color{red}{\overrightarrow{AB}} \quad \widehat{\theta} \widetilde{A} \\
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\widehat{AB} \quad \widehat{ABC} \quad \widetilde{AB} \quad \widetilde{ABC} \\
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\overrightarrow{F} + \overrightarrow{AB} + \overrightarrow{F}^2 + \overrightarrow{F}_2 + \overrightarrow{F}_1^2 \\
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\overrightarrow{AB}^2+\frac{\overrightarrow{AB}}{\overrightarrow{AB}} + \sqrt{\overrightarrow{AB}} + \left\lvert\overrightarrow{AB}\right\rvert
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\end{array}
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StretchyAccentColor: |
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\red{\overrightarrow{AB}} \quad \color{blue}{\overleftarrow{AB}} \quad \color{blue}{\green{\Overrightarrow{AB}}}
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StrikeThrough: |
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\begin{array}{l}
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\cancel x \quad \cancel{2B} + \bcancel 5 +\bcancel{5ay} \\
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\sout{5ab} + \sout{5ABC} + \xcancel{\oint_S{\vec E\cdot\hat n\,\mathrm d a}} \\
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\frac{x+\cancel B}{x+\cancel x} + \frac{x+\cancel y}{x} + \cancel{B}_1^2 + \cancel{B^2} \\
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\left\lvert\cancel{ac}\right\rvert
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\end{array}
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StrikeThroughColor: |
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\begin{array}{l}
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\red{\cancel x \quad \cancel{2B} + \bcancel 5 +\bcancel{5ay}} \\
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\color{green}{\sout{5ab} + \sout{5ABC} + \xcancel{\oint_S{\vec E\cdot\hat n\,\mathrm d a}}}
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\end{array}
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StyleSpacing: \scriptstyle ab\;cd
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StyleSwitching: a\cdot b\scriptstyle a\cdot ba\textstyle\cdot ba\scriptstyle\cdot b
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SupSubCharacterBox: a_2f_2{f}_2{aa}_2{af}_2\mathbf{y}_Ay_A
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SupSubHorizSpacing: |
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x^{x^{x}}\Big|x_{x_{x_{x_{x}}}}\bigg|x^{x^{x_{x_{x_{x_{x}}}}}}\bigg|
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SupSubLeftAlignReset: |
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\omega^8_{888} \quad \frac{1}{\hat{\omega}^{8}_{888}} \quad \displaystyle\sum_{\omega^{8}_{888}}
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SupSubOffsets: \displaystyle \int_{2+3}x f^{2+3}+3\lim_{2+3+4+5}f
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SvgReset:
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# This math uses a lot of SVG glyphs
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tex: '\underbrace{\sqrt{\vec{x}} + \sqrt{\vec{\color{#f00}y}}}'
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# Some of these styles should affect both svg and text. We want
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# those to be inherited. But some of the styles only affect svg
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# and the point of this test is to verify that the svg-only
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# styles (like fill-opacity) are not inherited
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styles: 'display:block; width:500px;border:solid yellow 5px;padding:50px;background:#ccc;color:green;font-size:92px;transform:translate(100px,250px)rotate(-45deg);fill-opacity:0;stroke-width:40;stroke:blue;'
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Symbols1: |
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\maltese\degree\pounds\$
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\text{\maltese\degree\pounds\textdollar}
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Text: \frac{a}{b}\text{c~ {ab} \ e}+fg
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TextStacked:
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\begin{matrix}
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\textsf{abc123 \textbf{abc123} \textit{abc123}}\\
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\text{abc123 \textbf{abc123} \textit{abc123}}\\
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\textrm{abc123 \textbf{abc123} \textit{abc123}}\\
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\textsf{\textrm{\textbf{abc123}} \textbf{abc123} \textit{abc123}}\\
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\textit{abc123 \textbf{abc123} \textsf{abc123}}\\
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\end{matrix}
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TextWithMath: \text{for $a < b$ and $ c < d $}.
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Unicode: \begin{matrix}\text{ÀàÇçÉéÏïÖöÛû} \\ \text{БГДЖЗЙЛФЦШЫЮЯ} \\ \text{여보세요} \\ \text{私はバナナです} \end{matrix}
|
||
Units: |
|
||
\begin{array}{ll}
|
||
\mathrm H\kern 1em\mathrm H \text{\tiny (1em)}
|
||
& \mathrm H\kern 1ex\mathrm H \text{\tiny (1ex)} \\
|
||
\mathrm H{\scriptstyle \kern 1em}\mathrm H \text{\tiny (ss 1em)}
|
||
& \mathrm H{\scriptstyle \kern 1ex}\mathrm H \text{\tiny (ss 1ex)} \\
|
||
\mathrm H{\small \kern 1em}\mathrm H \text{\tiny (sm 1em)}
|
||
& \mathrm H{\small \kern 1ex}\mathrm H \text{\tiny (sm 1ex)} \\
|
||
\mathrm H\mkern 18mu\mathrm H \text{\tiny (18mu)}
|
||
& \mathrm H\kern 1cm\mathrm H \text{\tiny (1cm)} \\
|
||
\mathrm H{\scriptstyle \mkern 18mu}\mathrm H \text{\tiny (ss 18mu)}
|
||
& \mathrm H{\scriptstyle \kern 1cm}\mathrm H \text{\tiny (ss 1cm)} \\
|
||
\mathrm H{\small \mkern 18mu}\mathrm H \text{\tiny (sm 18mu)}
|
||
& \mathrm H{\small \kern 1cm}\mathrm H \text{\tiny (sm 1cm)}
|
||
\end{array}
|
||
UnsupportedCmds:
|
||
tex: \err\,\frac\fracerr3\,2^\superr_\suberr\,\sqrt\sqrterr
|
||
noThrow: 1
|
||
errorColor: "#dd4c4c"
|
||
nolatex: deliberately does not compile
|
||
Verb: |
|
||
\begin{array}{ll}
|
||
\verb \verb , & \verb|\verb |, \\
|
||
\verb* \verb* , & \verb*|\verb* |, \\
|
||
\verb!<x> & </y>! & \scriptstyle\verb|ss verb| \\
|
||
\verb*!<x> & </y>! & \small\verb|sm verb| \\
|
||
\end{array}
|
||
VerticalSpacing:
|
||
pre: potato<br>blah
|
||
tex: x^{\Huge y}z
|
||
post: <br>moo
|