45 lines
909 B
JavaScript
45 lines
909 B
JavaScript
// @flow
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import * as React from 'react';
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import replace from 'string-replace-to-array';
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import styled from 'styled-components';
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type Props = {
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highlight: ?string | RegExp,
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processResult?: (tag: string) => string,
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text: string,
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caseSensitive?: boolean,
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};
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function Highlight({
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highlight,
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processResult,
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caseSensitive,
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text,
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...rest
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}: Props) {
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let regex;
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if (highlight instanceof RegExp) {
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regex = highlight;
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} else {
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regex = new RegExp(
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(highlight || '').replace(/[-\\^$*+?.()|[\]{}]/g, '\\$&'),
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caseSensitive ? 'g' : 'gi'
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);
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}
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return (
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<span {...rest}>
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{highlight
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? replace(text, regex, (tag, index) => (
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<Mark key={index}>{processResult ? processResult(tag) : tag}</Mark>
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))
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: text}
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</span>
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);
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}
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const Mark = styled.mark`
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background: ${props => props.theme.yellow};
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`;
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export default Highlight;
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