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Add support for \cal (#2116)

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Fix #2115 by adding \cal to list of old-style font commands.
(Surprisingly tiny change!)
Add tests for all old-style font commands.
This commit is contained in:
Erik Demaine
2019-10-10 20:46:10 -04:00
committed by GitHub
parent 634b4e2ae4
commit 1eda0e86a0
4 changed files with 13 additions and 3 deletions
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2
docs/support_table.md
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@@ -198,7 +198,7 @@ table td {
|Symbol/Function | Rendered | Source or Comment|
|:---------------|:------------|:-----------------|
|\C|<span style="color:firebrick;">Not supported</span>|[Deprecated](https://en.wikipedia.org/wiki/Help:Displaying_a_formula#Deprecated_syntax)|
|\cal|<span style="color:firebrick;">Not supported</span>|See `\mathcal`
|\cal|$\cal AaBb123$|`\cal AaBb123`|
|\cancel|$\cancel{5}$|`\cancel{5}`|
|\cancelto|<span style="color:firebrick;">Not supported</span>||
|\Cap|$\Cap$||

3
docs/supported.md
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@@ -538,7 +538,8 @@ For color definition, KaTeX color functions will accept the standard HTML [pred
|$\mathsf{Ab0}$ `\mathsf{Ab0}` |$\textmd{Ab0}$ `\textmd{Ab0}` |$\frak{Ab0}$ `\frak{Ab0}`
|$\textsf{Ab0}$ `\textsf{Ab0}` |$\mathtt{Ab0}$ `\mathtt{Ab0}` |$\mathfrak{Ab0}$ `\mathfrak{Ab0}`
|$\sf Ab0$ `\sf Ab0` |$\texttt{Ab0}$ `\texttt{Ab0}` |$\mathcal{AB0}$ `\mathcal{AB0}`
| |$\tt Ab0$ `\tt Ab0` |$\mathscr{AB}$ `\mathscr{AB}`
| |$\tt Ab0$ `\tt Ab0` |$\cal AB0$ `\cal AB0`
| | |$\mathscr{AB}$ `\mathscr{AB}`
One can stack font family, font weight, and font shape by using the `\textXX` versions of the font functions. So `\textsf{\textbf{H}}` will produce $\textsf{\textbf{H}}$. The other versions do not stack, e.g., `\mathsf{\mathbf{H}}` will produce $\mathsf{\mathbf{H}}$.

2
src/functions/font.js
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@@ -95,7 +95,7 @@ defineFunction({
// Old font changing functions
defineFunction({
type: "font",
names: ["\\rm", "\\sf", "\\tt", "\\bf", "\\it"],
names: ["\\rm", "\\sf", "\\tt", "\\bf", "\\it", "\\cal"],
props: {
numArgs: 0,
allowedInText: true,

9
test/katex-spec.js
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@@ -1601,6 +1601,15 @@ describe("A font parser", function() {
const built = getBuilt`a\boldsymbol{}b\boldsymbol{=}c\boldsymbol{+}d\boldsymbol{++}e\boldsymbol{xyz}f`;
expect(built).toMatchSnapshot();
});
it("old-style fonts work like new-style fonts", () => {
expect`\rm xyz`.toParseLike`\mathrm{xyz}`;
expect`\sf xyz`.toParseLike`\mathsf{xyz}`;
expect`\tt xyz`.toParseLike`\mathtt{xyz}`;
expect`\bf xyz`.toParseLike`\mathbf{xyz}`;
expect`\it xyz`.toParseLike`\mathit{xyz}`;
expect`\cal xyz`.toParseLike`\mathcal{xyz}`;
});
});
describe("A \\pmb builder", function() {