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\char character escaping and nicer MathML via \html@mathml (#1454)

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* \html@mathml

Fix #1452

* Add missing file

* Implement \char (via internal \@char)

* Remove excess <mstyle> wrapper on \mathbin etc.

* Fix tests

* Add Unicode support for \copyright and \textregistered

Testing that this doesn't lead to an infinite loop thanks to \char` escaping.

* Add tests

* Use assertNodeType

* Switch from regex to lookup table, and no parseInt
This commit is contained in:
Erik Demaine
2018-07-14 08:36:23 -04:00
committed by GitHub
parent 33ef4bdc63
commit b7277049a4
10 changed files with 259 additions and 61 deletions
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83
test/__snapshots__/mathml-spec.js.snap
View File

@@ -1,5 +1,34 @@
// Jest Snapshot v1, https://goo.gl/fbAQLP
exports[`A MathML builder \\html@mathml makes clean symbols 1`] = `
<math>
<semantics>
<mrow>
<mtext>
©
</mtext>
<mi mathvariant="normal">
≠
</mi>
<mi mathvariant="normal">
∉
</mi>
<mi mathvariant="normal">
≘
</mi>
<mtext>
KaTeX
</mtext>
</mrow>
<annotation encoding="application/x-tex">
\\copyright\\neq\\notin≘\\KaTeX
</annotation>
</semantics>
</math>
`;
exports[`A MathML builder \\text fonts become mathvariant 1`] = `
<math>
@@ -382,34 +411,32 @@ exports[`A MathML builder should render boldsymbol with the correct mathvariants
<math>
<semantics>
<mrow>
<mstyle>
<mrow>
<mi mathvariant="bold-italic">
A
</mi>
<mi mathvariant="bold-italic">
x
</mi>
<mn mathvariant="bold-italic">
2
</mn>
<mi mathvariant="bold-italic">
k
</mi>
<mi mathvariant="bold-italic">
ω
</mi>
<mi mathvariant="bold-italic">
Ω
</mi>
<mi mathvariant="bold-italic">
ı
</mi>
<mo mathvariant="bold-italic">
+
</mo>
</mrow>
</mstyle>
<mrow>
<mi mathvariant="bold-italic">
A
</mi>
<mi mathvariant="bold-italic">
x
</mi>
<mn mathvariant="bold-italic">
2
</mn>
<mi mathvariant="bold-italic">
k
</mi>
<mi mathvariant="bold-italic">
ω
</mi>
<mi mathvariant="bold-italic">
Ω
</mi>
<mi mathvariant="bold-italic">
ı
</mi>
<mo mathvariant="bold-italic">
+
</mo>
</mrow>
</mrow>
<annotation encoding="application/x-tex">
\\boldsymbol{Ax2k\\omega\\Omega\\imath+}

31
test/katex-spec.js
View File

@@ -93,7 +93,10 @@ describe("A rel parser", function() {
expect(parse).toBeTruthy();
for (let i = 0; i < parse.length; i++) {
const group = parse[i];
let group = parse[i];
if (group.type === "htmlmathml") {
group = group.value.html[0];
}
expect(group.type).toEqual("rel");
}
});
@@ -1503,12 +1506,12 @@ describe("A font parser", function() {
expect(nestedParse.value.font).toEqual("mathbb");
expect(nestedParse.value.type).toEqual("font");
expect(nestedParse.value.body.value.length).toEqual(4);
const bbBody = nestedParse.value.body.value;
expect(bbBody.length).toEqual(3);
expect(bbBody[0].type).toEqual("mathord");
expect(bbBody[3].type).toEqual("font");
expect(bbBody[3].value.font).toEqual("mathrm");
expect(bbBody[3].value.type).toEqual("font");
expect(bbBody[2].type).toEqual("font");
expect(bbBody[2].value.font).toEqual("mathrm");
expect(bbBody[2].value.type).toEqual("font");
});
it("should work with \\textcolor", function() {
@@ -2802,6 +2805,20 @@ describe("A macro expander", function() {
{"\\mode": "\\TextOrMath{t}{m}"});
});
it("\\char produces literal characters", () => {
expect("\\char`a").toParseLike("\\char`\\a");
expect("\\char`\\%").toParseLike("\\char37");
expect("\\char`\\%").toParseLike("\\char'45");
expect("\\char`\\%").toParseLike('\\char"25');
expect("\\char").toNotParse();
expect("\\char`").toNotParse();
expect("\\char'").toNotParse();
expect('\\char"').toNotParse();
expect("\\char'a").toNotParse();
expect('\\char"g').toNotParse();
expect('\\char"g').toNotParse();
});
// TODO(edemaine): This doesn't work yet. Parses like `\text text`,
// which doesn't treat all four letters as an argument.
//it("\\TextOrMath should work in a macro passed to \\text", function() {
@@ -3070,7 +3087,9 @@ describe("Unicode", function() {
});
it("should parse symbols", function() {
expect("£¥ðℂℍℑℓℕ℘ℙℚℜℝℤℲℵℶℷℸ⅁∀∁∂∃∇∞∠∡∢♠♡♢♣♭♮♯✓°¬‼⋮\u00b7").toParse(strictSettings);
expect("ð").toParse(); // warns about lacking character metrics
expect("£¥ℂℍℑℓℕ℘ℙℚℜℝℤℲℵℶℷℸ⅁∀∁∂∃∇∞∠∡∢♠♡♢♣♭♮♯✓°¬‼⋮\u00B7\u00A9").toBuild(strictSettings);
expect("\\text{£¥\u00A9\u00AE\uFE0F}").toBuild(strictSettings);
});
it("should build Greek capital letters", function() {

5
test/mathml-spec.js
View File

@@ -128,4 +128,9 @@ describe("A MathML builder", function() {
"\\texttt{tt\\textit{italic\\textbf{bold italic}}\\textbf{bold}}}"))
.toMatchSnapshot();
});
it('\\html@mathml makes clean symbols', () => {
expect(getMathML("\\copyright\\neq\\notin\u2258\\KaTeX"))
.toMatchSnapshot();
});
});