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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | 2x 2x 2x 2x 4x 32x 32x 32x 32x 22x 10x 10x 32x 10x 22x 4x 4x 2x 2x 12x 2x 2x 12x 2x 2x 2x | import React, { useMemo } from 'react';
import PropTypes from 'prop-types';
import KaTeX from 'katex';
/**
* @typedef {import("react").ReactNode} ReactNode
*
*
* @callback ErrorRenderer
* @param {Error} error
* @returns {ReactNode}
*
*
* @typedef {object} MathComponentPropsWithMath
* @property {string} math
* @property {ReactNode=} children
* @property {string=} errorColor
* @property {ErrorRenderer=} renderError
*
*
* @typedef {object} MathComponentPropsWithChildren
* @property {string=} math
* @property {ReactNode} children
* @property {string=} errorColor
* @property {ErrorRenderer=} renderError
*
* @typedef {MathComponentPropsWithMath | MathComponentPropsWithChildren} MathComponentProps
*/
const createMathComponent = (Component, { displayMode }) => {
/**
*
* @param {MathComponentProps} props
* @returns {ReactNode}
*/
const MathComponent = ({ children, errorColor, math, renderError }) => {
const formula = math ?? children;
const { html, error } = useMemo(() => {
try {
const html = KaTeX.renderToString(formula, {
displayMode,
errorColor,
throwOnError: !!renderError,
});
return { html, error: undefined };
} catch (error) {
if (error instanceof KaTeX.ParseError || error instanceof TypeError) {
return { error };
}
throw error;
}
}, [formula, errorColor, renderError]);
if (error) {
return renderError ? renderError(error) : <Component html={`${error.message}`} />;
}
return <Component html={html} />;
};
MathComponent.propTypes = {
children: PropTypes.string,
errorColor: PropTypes.string,
math: PropTypes.string,
renderError: PropTypes.func,
};
return MathComponent;
};
const InternalPathComponentPropTypes = {
html: PropTypes.string.isRequired,
};
const InternalBlockMath = ({ html }) => {
return <div data-testid="react-katex" dangerouslySetInnerHTML={{ __html: html }} />;
};
InternalBlockMath.propTypes = InternalPathComponentPropTypes;
const InternalInlineMath = ({ html }) => {
return <span data-testid="react-katex" dangerouslySetInnerHTML={{ __html: html }} />;
};
InternalInlineMath.propTypes = InternalPathComponentPropTypes;
export const BlockMath = createMathComponent(InternalBlockMath, { displayMode: true });
export const InlineMath = createMathComponent(InternalInlineMath, { displayMode: false });
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