@instructure/quiz-interactions
Version:
A React UI component Library for quiz interaction types.
60 lines • 2.62 kB
JavaScript
import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
import escapeRegExp from 'lodash/escapeRegExp';
import { formatPlain } from '@instructure/quiz-i18n';
import { isScientificNotation, parseScientificNotation } from '@instructure/quiz-scientific-notation';
import additionalFunctions from './additional_functions';
var openingQuote = '`';
var closingQuote = '`';
function formatNumber(value, locale, mathquill) {
var opts = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
return isScientificNotation(value) ? formatScientificNotation(value, mathquill) : formatPlain(value, locale, opts);
}
function formatScientificNotation(value, mathquill) {
if (!mathquill) return value;
var _parseScientificNotat = parseScientificNotation(value),
_parseScientificNotat2 = _slicedToArray(_parseScientificNotat, 2),
mantissa = _parseScientificNotat2[0],
exponent = _parseScientificNotat2[1];
return "".concat(mantissa, "*10^{").concat(exponent, "}");
}
export function substituteVars(input, vars, locale) {
return vars.reduce(function (text, v) {
var fractionDigits = v.value.toString().split('.')[1];
var numFractionDigits = fractionDigits && fractionDigits.length;
return text
// Replace mathquill variables first so that we can apply special
// formatting for numbers in scientific notation:
.replace(new RegExp(// eslint-disable-next-line no-useless-escape
"(\\(.*?)".concat(openingQuote).concat(escapeRegExp(v.name)).concat(closingQuote, "(.*?\\))"), 'g'), "$1".concat(formatNumber(v.value, locale, true, {
minimumFractionDigits: numFractionDigits
}), "$2"))
// Then substitute non-mathquill variables:
.replace(new RegExp("".concat(openingQuote).concat(escapeRegExp(v.name)).concat(closingQuote), 'g'), formatNumber(v.value, locale, false, {
minimumFractionDigits: numFractionDigits,
useGrouping: true
}));
}, input);
}
var promiseToGetMathjs;
export var mathjsLoadingWrapper = {
mathjs: null
};
export var loadMathjs = function loadMathjs() {
if (!promiseToGetMathjs) {
promiseToGetMathjs = import(/* webpackChunkName: "mathjs" */'mathjs').then(function (_mathjs) {
// import all our additional factory functions
_mathjs["import"](additionalFunctions, {
override: true
});
_mathjs.config({
angles: 'deg'
});
mathjsLoadingWrapper.mathjs = _mathjs;
return mathjsLoadingWrapper.mathjs;
});
}
return promiseToGetMathjs;
};
export var mathjsIsLoaded = function mathjsIsLoaded() {
return mathjsLoadingWrapper.mathjs !== null;
};