Commit node_modules
This commit is contained in:
Will Faught
746
paige/node_modules/katex/contrib/render-a11y-string/render-a11y-string.js
generated
vendored
Normal file
746
paige/node_modules/katex/contrib/render-a11y-string/render-a11y-string.js
generated
vendored
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@@ -0,0 +1,746 @@
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// @flow
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/**
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* renderA11yString returns a readable string.
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*
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* In some cases the string will have the proper semantic math
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* meaning,:
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* renderA11yString("\\frac{1}{2}"")
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* -> "start fraction, 1, divided by, 2, end fraction"
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*
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* However, other cases do not:
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* renderA11yString("f(x) = x^2")
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* -> "f, left parenthesis, x, right parenthesis, equals, x, squared"
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*
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* The commas in the string aim to increase ease of understanding
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* when read by a screenreader.
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*/
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// NOTE: since we're importing types here these files won't actually be
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// included in the build.
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import type {Atom} from "../../src/symbols";
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import type {AnyParseNode} from "../../src/parseNode";
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import type {SettingsOptions} from "../../src/Settings";
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// $FlowIgnore: we import the types directly anyways
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import katex from "katex";
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const stringMap = {
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"(": "left parenthesis",
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")": "right parenthesis",
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"[": "open bracket",
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"]": "close bracket",
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"\\{": "left brace",
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"\\}": "right brace",
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"\\lvert": "open vertical bar",
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"\\rvert": "close vertical bar",
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"|": "vertical bar",
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"\\uparrow": "up arrow",
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"\\Uparrow": "up arrow",
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"\\downarrow": "down arrow",
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"\\Downarrow": "down arrow",
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"\\updownarrow": "up down arrow",
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"\\leftarrow": "left arrow",
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"\\Leftarrow": "left arrow",
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"\\rightarrow": "right arrow",
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"\\Rightarrow": "right arrow",
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"\\langle": "open angle",
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"\\rangle": "close angle",
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"\\lfloor": "open floor",
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"\\rfloor": "close floor",
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"\\int": "integral",
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"\\intop": "integral",
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"\\lim": "limit",
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"\\ln": "natural log",
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"\\log": "log",
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"\\sin": "sine",
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"\\cos": "cosine",
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"\\tan": "tangent",
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"\\cot": "cotangent",
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"\\sum": "sum",
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"/": "slash",
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",": "comma",
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".": "point",
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"-": "negative",
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"+": "plus",
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"~": "tilde",
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":": "colon",
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"?": "question mark",
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"'": "apostrophe",
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"\\%": "percent",
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" ": "space",
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"\\ ": "space",
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"\\$": "dollar sign",
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"\\angle": "angle",
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"\\degree": "degree",
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"\\circ": "circle",
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"\\vec": "vector",
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"\\triangle": "triangle",
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"\\pi": "pi",
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"\\prime": "prime",
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"\\infty": "infinity",
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"\\alpha": "alpha",
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"\\beta": "beta",
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"\\gamma": "gamma",
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"\\omega": "omega",
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"\\theta": "theta",
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"\\sigma": "sigma",
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"\\lambda": "lambda",
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"\\tau": "tau",
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"\\Delta": "delta",
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"\\delta": "delta",
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"\\mu": "mu",
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"\\rho": "rho",
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"\\nabla": "del",
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"\\ell": "ell",
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"\\ldots": "dots",
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// TODO: add entries for all accents
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"\\hat": "hat",
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"\\acute": "acute",
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};
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const powerMap = {
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"prime": "prime",
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"degree": "degrees",
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"circle": "degrees",
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"2": "squared",
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"3": "cubed",
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};
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const openMap = {
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"|": "open vertical bar",
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".": "",
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};
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const closeMap = {
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"|": "close vertical bar",
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".": "",
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};
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const binMap = {
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"+": "plus",
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"-": "minus",
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"\\pm": "plus minus",
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"\\cdot": "dot",
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"*": "times",
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"/": "divided by",
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"\\times": "times",
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"\\div": "divided by",
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"\\circ": "circle",
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"\\bullet": "bullet",
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};
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const relMap = {
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"=": "equals",
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"\\approx": "approximately equals",
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"≠": "does not equal",
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"\\geq": "is greater than or equal to",
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"\\ge": "is greater than or equal to",
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"\\leq": "is less than or equal to",
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"\\le": "is less than or equal to",
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">": "is greater than",
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"<": "is less than",
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"\\leftarrow": "left arrow",
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"\\Leftarrow": "left arrow",
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"\\rightarrow": "right arrow",
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"\\Rightarrow": "right arrow",
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":": "colon",
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};
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const accentUnderMap = {
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"\\underleftarrow": "left arrow",
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"\\underrightarrow": "right arrow",
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"\\underleftrightarrow": "left-right arrow",
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"\\undergroup": "group",
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"\\underlinesegment": "line segment",
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"\\utilde": "tilde",
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};
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type NestedArray<T> = Array<T | NestedArray<T>>;
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const buildString = (
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str: string,
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type: Atom | "normal",
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a11yStrings: NestedArray<string>,
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) => {
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if (!str) {
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return;
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}
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let ret;
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if (type === "open") {
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ret = str in openMap ? openMap[str] : stringMap[str] || str;
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} else if (type === "close") {
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ret = str in closeMap ? closeMap[str] : stringMap[str] || str;
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} else if (type === "bin") {
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ret = binMap[str] || str;
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} else if (type === "rel") {
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ret = relMap[str] || str;
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} else {
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ret = stringMap[str] || str;
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}
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// If the text to add is a number and there is already a string
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// in the list and the last string is a number then we should
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// combine them into a single number
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if (
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/^\d+$/.test(ret) &&
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a11yStrings.length > 0 &&
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// TODO(kevinb): check that the last item in a11yStrings is a string
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// I think we might be able to drop the nested arrays, which would make
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// this easier to type
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// $FlowFixMe
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/^\d+$/.test(a11yStrings[a11yStrings.length - 1])
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) {
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a11yStrings[a11yStrings.length - 1] += ret;
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} else if (ret) {
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a11yStrings.push(ret);
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}
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};
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const buildRegion = (
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a11yStrings: NestedArray<string>,
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callback: (regionStrings: NestedArray<string>) => void,
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) => {
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const regionStrings: NestedArray<string> = [];
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a11yStrings.push(regionStrings);
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callback(regionStrings);
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};
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const handleObject = (
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tree: AnyParseNode,
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a11yStrings: NestedArray<string>,
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atomType: Atom | "normal",
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) => {
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// Everything else is assumed to be an object...
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switch (tree.type) {
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case "accent": {
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buildRegion(a11yStrings, (a11yStrings) => {
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buildA11yStrings(tree.base, a11yStrings, atomType);
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a11yStrings.push("with");
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buildString(tree.label, "normal", a11yStrings);
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a11yStrings.push("on top");
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});
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break;
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}
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case "accentUnder": {
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buildRegion(a11yStrings, (a11yStrings) => {
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buildA11yStrings(tree.base, a11yStrings, atomType);
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a11yStrings.push("with");
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buildString(accentUnderMap[tree.label], "normal", a11yStrings);
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a11yStrings.push("underneath");
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});
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break;
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}
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case "accent-token": {
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// Used internally by accent symbols.
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break;
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}
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case "atom": {
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const {text} = tree;
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switch (tree.family) {
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case "bin": {
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buildString(text, "bin", a11yStrings);
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break;
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}
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case "close": {
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buildString(text, "close", a11yStrings);
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break;
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}
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// TODO(kevinb): figure out what should be done for inner
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case "inner": {
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buildString(tree.text, "inner", a11yStrings);
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break;
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}
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case "open": {
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buildString(text, "open", a11yStrings);
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break;
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}
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case "punct": {
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buildString(text, "punct", a11yStrings);
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break;
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}
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case "rel": {
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buildString(text, "rel", a11yStrings);
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break;
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}
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default: {
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(tree.family: empty);
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throw new Error(`"${tree.family}" is not a valid atom type`);
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}
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}
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break;
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}
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case "color": {
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const color = tree.color.replace(/katex-/, "");
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buildRegion(a11yStrings, (regionStrings) => {
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regionStrings.push("start color " + color);
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buildA11yStrings(tree.body, regionStrings, atomType);
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regionStrings.push("end color " + color);
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});
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break;
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}
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case "color-token": {
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// Used by \color, \colorbox, and \fcolorbox but not directly rendered.
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// It's a leaf node and has no children so just break.
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break;
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}
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case "delimsizing": {
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if (tree.delim && tree.delim !== ".") {
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buildString(tree.delim, "normal", a11yStrings);
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}
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break;
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}
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case "genfrac": {
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buildRegion(a11yStrings, (regionStrings) => {
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// genfrac can have unbalanced delimiters
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const {leftDelim, rightDelim} = tree;
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// NOTE: Not sure if this is a safe assumption
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// hasBarLine true -> fraction, false -> binomial
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if (tree.hasBarLine) {
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regionStrings.push("start fraction");
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leftDelim && buildString(leftDelim, "open", regionStrings);
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buildA11yStrings(tree.numer, regionStrings, atomType);
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regionStrings.push("divided by");
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buildA11yStrings(tree.denom, regionStrings, atomType);
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rightDelim && buildString(rightDelim, "close", regionStrings);
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regionStrings.push("end fraction");
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} else {
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regionStrings.push("start binomial");
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leftDelim && buildString(leftDelim, "open", regionStrings);
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buildA11yStrings(tree.numer, regionStrings, atomType);
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regionStrings.push("over");
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buildA11yStrings(tree.denom, regionStrings, atomType);
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rightDelim && buildString(rightDelim, "close", regionStrings);
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regionStrings.push("end binomial");
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}
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});
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break;
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}
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case "hbox": {
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buildA11yStrings(tree.body, a11yStrings, atomType);
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break;
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}
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case "kern": {
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// No op: we don't attempt to present kerning information
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// to the screen reader.
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break;
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}
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case "leftright": {
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buildRegion(a11yStrings, (regionStrings) => {
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buildString(tree.left, "open", regionStrings);
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buildA11yStrings(tree.body, regionStrings, atomType);
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buildString(tree.right, "close", regionStrings);
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});
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break;
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}
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case "leftright-right": {
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// TODO: double check that this is a no-op
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break;
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}
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case "lap": {
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buildA11yStrings(tree.body, a11yStrings, atomType);
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break;
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}
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case "mathord": {
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buildString(tree.text, "normal", a11yStrings);
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break;
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}
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case "op": {
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const {body, name} = tree;
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if (body) {
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buildA11yStrings(body, a11yStrings, atomType);
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} else if (name) {
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buildString(name, "normal", a11yStrings);
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}
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break;
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}
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case "op-token": {
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// Used internally by operator symbols.
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buildString(tree.text, atomType, a11yStrings);
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break;
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}
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case "ordgroup": {
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buildA11yStrings(tree.body, a11yStrings, atomType);
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break;
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}
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case "overline": {
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buildRegion(a11yStrings, function(a11yStrings) {
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a11yStrings.push("start overline");
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buildA11yStrings(tree.body, a11yStrings, atomType);
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a11yStrings.push("end overline");
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});
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break;
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}
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case "pmb": {
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a11yStrings.push("bold");
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break;
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}
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case "phantom": {
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a11yStrings.push("empty space");
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break;
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}
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case "raisebox": {
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buildA11yStrings(tree.body, a11yStrings, atomType);
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break;
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}
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case "rule": {
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a11yStrings.push("rectangle");
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break;
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}
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case "sizing": {
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buildA11yStrings(tree.body, a11yStrings, atomType);
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break;
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}
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case "spacing": {
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a11yStrings.push("space");
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break;
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}
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case "styling": {
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// We ignore the styling and just pass through the contents
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buildA11yStrings(tree.body, a11yStrings, atomType);
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break;
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}
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||||
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case "sqrt": {
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buildRegion(a11yStrings, (regionStrings) => {
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const {body, index} = tree;
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if (index) {
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const indexString = flatten(
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||||
buildA11yStrings(index, [], atomType)).join(",");
|
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if (indexString === "3") {
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regionStrings.push("cube root of");
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||||
buildA11yStrings(body, regionStrings, atomType);
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regionStrings.push("end cube root");
|
||||
return;
|
||||
}
|
||||
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||||
regionStrings.push("root");
|
||||
regionStrings.push("start index");
|
||||
buildA11yStrings(index, regionStrings, atomType);
|
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regionStrings.push("end index");
|
||||
return;
|
||||
}
|
||||
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regionStrings.push("square root of");
|
||||
buildA11yStrings(body, regionStrings, atomType);
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regionStrings.push("end square root");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "supsub": {
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||||
const {base, sub, sup} = tree;
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||||
let isLog = false;
|
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if (base) {
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buildA11yStrings(base, a11yStrings, atomType);
|
||||
isLog = base.type === "op" && base.name === "\\log";
|
||||
}
|
||||
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||||
if (sub) {
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||||
const regionName = isLog ? "base" : "subscript";
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||||
buildRegion(a11yStrings, function(regionStrings) {
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||||
regionStrings.push(`start ${regionName}`);
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||||
buildA11yStrings(sub, regionStrings, atomType);
|
||||
regionStrings.push(`end ${regionName}`);
|
||||
});
|
||||
}
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||||
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||||
if (sup) {
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||||
buildRegion(a11yStrings, function(regionStrings) {
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||||
const supString = flatten(
|
||||
buildA11yStrings(sup, [], atomType)).join(",");
|
||||
|
||||
if (supString in powerMap) {
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||||
regionStrings.push(powerMap[supString]);
|
||||
return;
|
||||
}
|
||||
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||||
regionStrings.push("start superscript");
|
||||
buildA11yStrings(sup, regionStrings, atomType);
|
||||
regionStrings.push("end superscript");
|
||||
});
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
case "text": {
|
||||
// TODO: handle other fonts
|
||||
if (tree.font === "\\textbf") {
|
||||
buildRegion(a11yStrings, function(regionStrings) {
|
||||
regionStrings.push("start bold text");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end bold text");
|
||||
});
|
||||
break;
|
||||
}
|
||||
buildRegion(a11yStrings, function(regionStrings) {
|
||||
regionStrings.push("start text");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end text");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "textord": {
|
||||
buildString(tree.text, atomType, a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "smash": {
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "enclose": {
|
||||
// TODO: create a map for these.
|
||||
// TODO: differentiate between a body with a single atom, e.g.
|
||||
// "cancel a" instead of "start cancel, a, end cancel"
|
||||
if (/cancel/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function(regionStrings) {
|
||||
regionStrings.push("start cancel");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end cancel");
|
||||
});
|
||||
break;
|
||||
} else if (/box/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function(regionStrings) {
|
||||
regionStrings.push("start box");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end box");
|
||||
});
|
||||
break;
|
||||
} else if (/sout/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function(regionStrings) {
|
||||
regionStrings.push("start strikeout");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end strikeout");
|
||||
});
|
||||
break;
|
||||
} else if (/phase/.test(tree.label)) {
|
||||
buildRegion(a11yStrings, function(regionStrings) {
|
||||
regionStrings.push("start phase angle");
|
||||
buildA11yStrings(tree.body, regionStrings, atomType);
|
||||
regionStrings.push("end phase angle");
|
||||
});
|
||||
break;
|
||||
}
|
||||
throw new Error(
|
||||
`KaTeX-a11y: enclose node with ${tree.label} not supported yet`);
|
||||
}
|
||||
|
||||
case "vcenter": {
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "vphantom": {
|
||||
throw new Error("KaTeX-a11y: vphantom not implemented yet");
|
||||
}
|
||||
|
||||
case "hphantom": {
|
||||
throw new Error("KaTeX-a11y: hphantom not implemented yet");
|
||||
}
|
||||
|
||||
case "operatorname": {
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "array": {
|
||||
throw new Error("KaTeX-a11y: array not implemented yet");
|
||||
}
|
||||
|
||||
case "raw": {
|
||||
throw new Error("KaTeX-a11y: raw not implemented yet");
|
||||
}
|
||||
|
||||
case "size": {
|
||||
// Although there are nodes of type "size" in the parse tree, they have
|
||||
// no semantic meaning and should be ignored.
|
||||
break;
|
||||
}
|
||||
|
||||
case "url": {
|
||||
throw new Error("KaTeX-a11y: url not implemented yet");
|
||||
}
|
||||
|
||||
case "tag": {
|
||||
throw new Error("KaTeX-a11y: tag not implemented yet");
|
||||
}
|
||||
|
||||
case "verb": {
|
||||
buildString(`start verbatim`, "normal", a11yStrings);
|
||||
buildString(tree.body, "normal", a11yStrings);
|
||||
buildString(`end verbatim`, "normal", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "environment": {
|
||||
throw new Error("KaTeX-a11y: environment not implemented yet");
|
||||
}
|
||||
|
||||
case "horizBrace": {
|
||||
buildString(`start ${tree.label.slice(1)}`, "normal", a11yStrings);
|
||||
buildA11yStrings(tree.base, a11yStrings, atomType);
|
||||
buildString(`end ${tree.label.slice(1)}`, "normal", a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "infix": {
|
||||
// All infix nodes are replace with other nodes.
|
||||
break;
|
||||
}
|
||||
|
||||
case "includegraphics": {
|
||||
throw new Error("KaTeX-a11y: includegraphics not implemented yet");
|
||||
}
|
||||
|
||||
case "font": {
|
||||
// TODO: callout the start/end of specific fonts
|
||||
// TODO: map \BBb{N} to "the naturals" or something like that
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "href": {
|
||||
throw new Error("KaTeX-a11y: href not implemented yet");
|
||||
}
|
||||
|
||||
case "cr": {
|
||||
// This is used by environments.
|
||||
throw new Error("KaTeX-a11y: cr not implemented yet");
|
||||
}
|
||||
|
||||
case "underline": {
|
||||
buildRegion(a11yStrings, function(a11yStrings) {
|
||||
a11yStrings.push("start underline");
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
a11yStrings.push("end underline");
|
||||
});
|
||||
break;
|
||||
}
|
||||
|
||||
case "xArrow": {
|
||||
throw new Error("KaTeX-a11y: xArrow not implemented yet");
|
||||
}
|
||||
|
||||
case "cdlabel": {
|
||||
throw new Error("KaTeX-a11y: cdlabel not implemented yet");
|
||||
}
|
||||
|
||||
case "cdlabelparent": {
|
||||
throw new Error("KaTeX-a11y: cdlabelparent not implemented yet");
|
||||
}
|
||||
|
||||
case "mclass": {
|
||||
// \neq and \ne are macros so we let "htmlmathml" render the mathmal
|
||||
// side of things and extract the text from that.
|
||||
const atomType = tree.mclass.slice(1);
|
||||
// $FlowFixMe: drop the leading "m" from the values in mclass
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "mathchoice": {
|
||||
// TODO: track which which style we're using, e.g. dispaly, text, etc.
|
||||
// default to text style if even that may not be the correct style
|
||||
buildA11yStrings(tree.text, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "htmlmathml": {
|
||||
buildA11yStrings(tree.mathml, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
case "middle": {
|
||||
buildString(tree.delim, atomType, a11yStrings);
|
||||
break;
|
||||
}
|
||||
|
||||
case "internal": {
|
||||
// internal nodes are never included in the parse tree
|
||||
break;
|
||||
}
|
||||
|
||||
case "html": {
|
||||
buildA11yStrings(tree.body, a11yStrings, atomType);
|
||||
break;
|
||||
}
|
||||
|
||||
default:
|
||||
(tree.type: empty);
|
||||
throw new Error("KaTeX a11y un-recognized type: " + tree.type);
|
||||
}
|
||||
};
|
||||
|
||||
const buildA11yStrings = (
|
||||
tree: AnyParseNode | AnyParseNode[],
|
||||
a11yStrings: NestedArray<string> = [],
|
||||
atomType: Atom | "normal",
|
||||
) => {
|
||||
if (tree instanceof Array) {
|
||||
for (let i = 0; i < tree.length; i++) {
|
||||
buildA11yStrings(tree[i], a11yStrings, atomType);
|
||||
}
|
||||
} else {
|
||||
handleObject(tree, a11yStrings, atomType);
|
||||
}
|
||||
|
||||
return a11yStrings;
|
||||
};
|
||||
|
||||
|
||||
const flatten = function(array) {
|
||||
let result = [];
|
||||
|
||||
array.forEach(function(item) {
|
||||
if (item instanceof Array) {
|
||||
result = result.concat(flatten(item));
|
||||
} else {
|
||||
result.push(item);
|
||||
}
|
||||
});
|
||||
|
||||
return result;
|
||||
};
|
||||
|
||||
const renderA11yString = function(
|
||||
text: string,
|
||||
settings?: SettingsOptions,
|
||||
): string {
|
||||
|
||||
const tree = katex.__parse(text, settings);
|
||||
const a11yStrings = buildA11yStrings(tree, [], "normal");
|
||||
return flatten(a11yStrings).join(", ");
|
||||
};
|
||||
|
||||
export default renderA11yString;
|
||||
549
paige/node_modules/katex/contrib/render-a11y-string/test/render-a11y-string-spec.js
generated
vendored
Normal file
549
paige/node_modules/katex/contrib/render-a11y-string/test/render-a11y-string-spec.js
generated
vendored
Normal file
@@ -0,0 +1,549 @@
|
||||
/* eslint-disable max-len */
|
||||
// @flow
|
||||
import renderA11yString from "../render-a11y-string";
|
||||
|
||||
describe("renderA11yString", () => {
|
||||
describe("basic expressions", () => {
|
||||
test("simple addition", () => {
|
||||
const result = renderA11yString("1 + 2");
|
||||
expect(result).toMatchInlineSnapshot(`"1, plus, 2"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("accent", () => {
|
||||
test("\\vec", () => {
|
||||
const result = renderA11yString("\\vec{a}");
|
||||
expect(result).toMatchInlineSnapshot(`"a, with, vector, on top"`);
|
||||
});
|
||||
|
||||
test("\\acute{a}", () => {
|
||||
const result = renderA11yString("\\acute{a}");
|
||||
expect(result).toMatchInlineSnapshot(`"a, with, acute, on top"`);
|
||||
});
|
||||
|
||||
test("\\hat{a}", () => {
|
||||
const result = renderA11yString("\\hat{a}");
|
||||
expect(result).toMatchInlineSnapshot(`"a, with, hat, on top"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("accentUnder", () => {
|
||||
test("\\underleftarrow", () => {
|
||||
const result = renderA11yString("\\underleftarrow{1+2}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"1, plus, 2, with, left arrow, underneath"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("\\underlinesegment", () => {
|
||||
const result = renderA11yString("\\underlinesegment{1+2}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"1, plus, 2, with, line segment, underneath"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("atom", () => {
|
||||
test("punct", () => {
|
||||
const result = renderA11yString("1, 2, 3");
|
||||
expect(result).toMatchInlineSnapshot(`"1, comma, 2, comma, 3"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("color", () => {
|
||||
test("\\color{red}", () => {
|
||||
const result = renderA11yString("\\color{red}1+2");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start color red, 1, plus, 2, end color red"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("\\color{FF0000}", () => {
|
||||
const result = renderA11yString("\\color{FF0000}1+2");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start color #FF0000, 1, plus, 2, end color #FF0000"`,
|
||||
);
|
||||
});
|
||||
|
||||
// colorIsTextColor is an option added in KaTeX 0.9.0 for backward
|
||||
// compatibility. It makes \color parse like \textcolor. We use it
|
||||
// in the KA webapp, and need it here because the tests are written
|
||||
// assuming it is set.
|
||||
test("\\color{red} with {colorIsTextColor: true}", () => {
|
||||
const result = renderA11yString("\\color{red}1+2", {
|
||||
colorIsTextColor: true,
|
||||
});
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start color red, 1, end color red, plus, 2"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("\\textcolor{red}", () => {
|
||||
const result = renderA11yString("\\textcolor{red}1+2");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start color red, 1, end color red, plus, 2"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("delimiters", () => {
|
||||
test("simple parens", () => {
|
||||
const result = renderA11yString("(1 + 3)");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"left parenthesis, 1, plus, 3, right parenthesis"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("simple brackets", () => {
|
||||
const result = renderA11yString("[1 + 3]");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"open bracket, 1, plus, 3, close bracket"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("nested parens", () => {
|
||||
const result = renderA11yString("(a + (b + c))");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"left parenthesis, a, plus, left parenthesis, b, plus, c, right parenthesis, right parenthesis"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("stretchy parens around fractions", () => {
|
||||
const result = renderA11yString("\\left(\\frac{1}{x}\\right)");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"left parenthesis, start fraction, 1, divided by, x, end fraction, right parenthesis"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("delimsizing", () => {
|
||||
test("\\bigl(1+2\\bigr)", () => {
|
||||
const result = renderA11yString("\\bigl(1+2\\bigr)");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"left parenthesis, 1, plus, 2, right parenthesis"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("enclose", () => {
|
||||
test("\\cancel", () => {
|
||||
const result = renderA11yString("\\cancel{a}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start cancel, a, end cancel"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("\\fbox", () => {
|
||||
const result = renderA11yString("\\fbox{a}");
|
||||
expect(result).toMatchInlineSnapshot(`"start box, a, end box"`);
|
||||
});
|
||||
|
||||
test("\\boxed", () => {
|
||||
const result = renderA11yString("\\boxed{a}");
|
||||
expect(result).toMatchInlineSnapshot(`"start box, a, end box"`);
|
||||
});
|
||||
|
||||
test("\\sout", () => {
|
||||
const result = renderA11yString("\\sout{a}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start strikeout, a, end strikeout"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("phase", () => {
|
||||
test("\\phase", () => {
|
||||
const result = renderA11yString("\\phase{a}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start phase angle, a, end phase angle"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("exponents", () => {
|
||||
test("simple exponent", () => {
|
||||
const result = renderA11yString("e^x");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"e, start superscript, x, end superscript"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("^{\\circ} => degrees", () => {
|
||||
const result = renderA11yString("90^{\\circ}");
|
||||
expect(result).toMatchInlineSnapshot(`"90, degrees"`);
|
||||
});
|
||||
|
||||
test("^{\\degree} => degrees", () => {
|
||||
const result = renderA11yString("90^{\\degree}");
|
||||
expect(result).toMatchInlineSnapshot(`"90, degrees"`);
|
||||
});
|
||||
|
||||
test("^{\\prime} => prime", () => {
|
||||
const result = renderA11yString("f^{\\prime}");
|
||||
expect(result).toMatchInlineSnapshot(`"f, prime"`);
|
||||
});
|
||||
|
||||
test("^2 => squared", () => {
|
||||
const result = renderA11yString("x^2");
|
||||
expect(result).toMatchInlineSnapshot(`"x, squared"`);
|
||||
});
|
||||
|
||||
test("^3 => cubed", () => {
|
||||
const result = renderA11yString("x^3");
|
||||
expect(result).toMatchInlineSnapshot(`"x, cubed"`);
|
||||
});
|
||||
|
||||
test("log_2", () => {
|
||||
const result = renderA11yString("\\log_2{x+1}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"log, start base, 2, end base, x, plus, 1"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("a_{n+1}", () => {
|
||||
const result = renderA11yString("a_{n+1}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"a, start subscript, n, plus, 1, end subscript"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("genfrac", () => {
|
||||
test("simple fractions", () => {
|
||||
const result = renderA11yString("\\frac{2}{3}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start fraction, 2, divided by, 3, end fraction"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("nested fractions", () => {
|
||||
const result = renderA11yString("\\frac{1}{1+\\frac{1}{x}}");
|
||||
// TODO: this result is ambiguous, we need to fix this
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start fraction, 1, divided by, 1, plus, start fraction, 1, divided by, x, end fraction, end fraction"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("binomials", () => {
|
||||
const result = renderA11yString("\\binom{n}{k}");
|
||||
// TODO: drop the parenthesis as they're not normally read
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start binomial, left parenthesis, n, over, k, right parenthesis, end binomial"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("horizBrace", () => {
|
||||
test("\\overbrace", () => {
|
||||
const result = renderA11yString("\\overbrace{1+2}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start overbrace, 1, plus, 2, end overbrace"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("\\underbrace", () => {
|
||||
const result = renderA11yString("\\underbrace{1+2}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start underbrace, 1, plus, 2, end underbrace"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("infix", () => {
|
||||
test("\\over", () => {
|
||||
const result = renderA11yString("a \\over b");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start fraction, a, divided by, b, end fraction"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("\\choose", () => {
|
||||
const result = renderA11yString("a \\choose b");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start binomial, left parenthesis, a, over, b, right parenthesis, end binomial"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("\\above", () => {
|
||||
const result = renderA11yString("a \\above{2pt} b");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start fraction, a, divided by, b, end fraction"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("hbox", () => {
|
||||
test("\\hbox", () => {
|
||||
const result = renderA11yString("x+\\hbox{y}");
|
||||
expect(result).toMatchInlineSnapshot(`"x, plus, y"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("inner", () => {
|
||||
test("\\ldots", () => {
|
||||
const result = renderA11yString("\\ldots");
|
||||
expect(result).toMatchInlineSnapshot(`"dots"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("lap", () => {
|
||||
test("\\llap", () => {
|
||||
const result = renderA11yString("a\\llap{b}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"a, start text, b, end text"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("\\rlap", () => {
|
||||
const result = renderA11yString("a\\rlap{b}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"a, start text, b, end text"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("middle", () => {
|
||||
test("\\middle", () => {
|
||||
const result = renderA11yString("\\left(a\\middle|b\\right)");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"left parenthesis, a, vertical bar, b, right parenthesis"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("mod", () => {
|
||||
test("\\mod", () => {
|
||||
const result = renderA11yString("\\mod{23}");
|
||||
// TODO: drop the "space"
|
||||
// TODO: collate m, o, d... we should fix this inside of KaTeX since
|
||||
// this affects the HTML and MathML output as well
|
||||
expect(result).toMatchInlineSnapshot(`"space, m, o, d, 23"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("op", () => {
|
||||
test("\\lim", () => {
|
||||
const result = renderA11yString("\\lim{x+1}");
|
||||
// TODO: add begin/end to track argument of operators
|
||||
expect(result).toMatchInlineSnapshot(`"limit, x, plus, 1"`);
|
||||
});
|
||||
|
||||
test("\\sin 2\\pi", () => {
|
||||
const result = renderA11yString("\\sin{2\\pi}");
|
||||
// TODO: add begin/end to track argument of operators
|
||||
expect(result).toMatchInlineSnapshot(`"sine, 2, pi"`);
|
||||
});
|
||||
|
||||
test("\\sum_{i=0}", () => {
|
||||
const result = renderA11yString("\\sum_{i=0}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"sum, start subscript, i, equals, 0, end subscript"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("\u2211_{i=0}", () => {
|
||||
const result = renderA11yString("\u2211_{i=0}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"sum, start subscript, i, equals, 0, end subscript"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("operatorname", () => {
|
||||
test("\\limsup", () => {
|
||||
const result = renderA11yString("\\limsup");
|
||||
// TODO: collate strings so that this is "lim, sup"
|
||||
// NOTE: this also affect HTML and MathML output
|
||||
expect(result).toMatchInlineSnapshot(`"l, i, m, s, u, p"`);
|
||||
});
|
||||
|
||||
test("\\liminf", () => {
|
||||
const result = renderA11yString("\\liminf");
|
||||
expect(result).toMatchInlineSnapshot(`"l, i, m, i, n, f"`);
|
||||
});
|
||||
|
||||
test("\\argmin", () => {
|
||||
const result = renderA11yString("\\argmin");
|
||||
expect(result).toMatchInlineSnapshot(`"a, r, g, m, i, n"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("overline", () => {
|
||||
test("\\overline", () => {
|
||||
const result = renderA11yString("\\overline{1+2}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start overline, 1, plus, 2, end overline"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("phantom", () => {
|
||||
test("\\phantom", () => {
|
||||
const result = renderA11yString("1+\\phantom{2}");
|
||||
expect(result).toMatchInlineSnapshot(`"1, plus, empty space"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("raisebox", () => {
|
||||
test("\\raisebox", () => {
|
||||
const result = renderA11yString("x+\\raisebox{1em}{y}");
|
||||
expect(result).toMatchInlineSnapshot(`"x, plus, y"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("relations", () => {
|
||||
test("1 \\neq 2", () => {
|
||||
const result = renderA11yString("1 \\neq 2");
|
||||
expect(result).toMatchInlineSnapshot(`"1, does not equal, 2"`);
|
||||
});
|
||||
|
||||
test("1 \\ne 2", () => {
|
||||
const result = renderA11yString("1 \\ne 2");
|
||||
expect(result).toMatchInlineSnapshot(`"1, does not equal, 2"`);
|
||||
});
|
||||
|
||||
test("1 \\geq 2", () => {
|
||||
const result = renderA11yString("1 \\geq 2");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"1, is greater than or equal to, 2"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("1 \\ge 2", () => {
|
||||
const result = renderA11yString("1 \\ge 2");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"1, is greater than or equal to, 2"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("1 \\leq 2", () => {
|
||||
const result = renderA11yString("1 \\leq 3");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"1, is less than or equal to, 3"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("1 \\le 2", () => {
|
||||
const result = renderA11yString("1 \\le 3");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"1, is less than or equal to, 3"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("rule", () => {
|
||||
test("\\rule", () => {
|
||||
const result = renderA11yString("\\rule{1em}{1em}");
|
||||
expect(result).toMatchInlineSnapshot(`"rectangle"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("smash", () => {
|
||||
test("1 + \\smash{2}", () => {
|
||||
const result = renderA11yString("1 + \\smash{2}");
|
||||
expect(result).toMatchInlineSnapshot(`"1, plus, 2"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("sqrt", () => {
|
||||
test("square root", () => {
|
||||
const result = renderA11yString("\\sqrt{x + 1}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"square root of, x, plus, 1, end square root"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("nest square root", () => {
|
||||
const result = renderA11yString("\\sqrt{x + \\sqrt{y}}");
|
||||
// TODO: this sounds ambiguous as well... we should probably say "start square root"
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"square root of, x, plus, square root of, y, end square root, end square root"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("cube root", () => {
|
||||
const result = renderA11yString("\\sqrt[3]{x + 1}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"cube root of, x, plus, 1, end cube root"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("nth root", () => {
|
||||
const result = renderA11yString("\\sqrt[n]{x + 1}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"root, start index, n, end index"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("sizing", () => {
|
||||
test("\\Huge is ignored", () => {
|
||||
const result = renderA11yString("\\Huge{a+b}");
|
||||
expect(result).toMatchInlineSnapshot(`"a, plus, b"`);
|
||||
});
|
||||
|
||||
test("\\small is ignored", () => {
|
||||
const result = renderA11yString("\\small{a+b}");
|
||||
expect(result).toMatchInlineSnapshot(`"a, plus, b"`);
|
||||
});
|
||||
|
||||
// We don't need to test all sizing commands since all style
|
||||
// nodes are treated in the same way.
|
||||
});
|
||||
|
||||
describe("styling", () => {
|
||||
test("\\displaystyle is ignored", () => {
|
||||
const result = renderA11yString("\\displaystyle{a+b}");
|
||||
expect(result).toMatchInlineSnapshot(`"a, plus, b"`);
|
||||
});
|
||||
|
||||
test("\\textstyle is ignored", () => {
|
||||
const result = renderA11yString("\\textstyle{a+b}");
|
||||
expect(result).toMatchInlineSnapshot(`"a, plus, b"`);
|
||||
});
|
||||
|
||||
// We don't need to test all styling commands since all style
|
||||
// nodes are treated in the same way.
|
||||
});
|
||||
|
||||
describe("text", () => {
|
||||
test("\\text", () => {
|
||||
const result = renderA11yString("\\text{hello}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start text, h, e, l, l, o, end text"`,
|
||||
);
|
||||
});
|
||||
|
||||
test("\\textbf", () => {
|
||||
const result = renderA11yString("\\textbf{hello}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start bold text, h, e, l, l, o, end bold text"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("underline", () => {
|
||||
test("\\underline", () => {
|
||||
const result = renderA11yString("\\underline{1+2}");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start underline, 1, plus, 2, end underline"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
|
||||
describe("vcenter", () => {
|
||||
test("\\vcenter", () => {
|
||||
const result = renderA11yString("x+\\vcenter{y}");
|
||||
expect(result).toMatchInlineSnapshot(`"x, plus, y"`);
|
||||
});
|
||||
});
|
||||
|
||||
describe("verb", () => {
|
||||
test("\\verb", () => {
|
||||
const result = renderA11yString("\\verb|hello|");
|
||||
expect(result).toMatchInlineSnapshot(
|
||||
`"start verbatim, hello, end verbatim"`,
|
||||
);
|
||||
});
|
||||
});
|
||||
});
|
||||
Reference in New Issue
Block a user