import React from 'react'; import { Link, makeStyles } from '@material-ui/core'; // @ts-ignore-next-line; import { lib as emojiLib } from 'emojilib'; import { InlineParserPropTypes } from './types'; interface RegexPair { global: RegExp; local: RegExp; } interface Emoji { name: string; char: string; } const enclosureRegex = (e: string): RegexPair => ({ local: new RegExp(`${e}([^${e}]+)${e}`), global: new RegExp(`(${e}[^${e}]+${e})`) }); const regex: Record<string, RegexPair> = { conceal: { global: /(!?\[.+?\]\(.+?\))/g, local: /!?\[(.+?)\]\((.+?)\)/ }, rawLink: { global: /((?:(?:[A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=+$,\w]+@)?[A-Za-z0-9.-]+|(?:www\.|[-;:&=+$,\w]+@)[A-Za-z0-9.-]+)(?:(?:\/[+~%/.\w-_]*)?\??(?:[-+=&;%@.\w_]*)#?(?:[.!/\\\w]*))?)/, local: /&^/ }, emoji: enclosureRegex(':'), bold: enclosureRegex('\\*\\*'), italic: enclosureRegex('\\*'), code: enclosureRegex('`'), strikeThrough: enclosureRegex('~~'), } const splitter = new RegExp(Object.values(regex).map(pair => pair.global.source).join('|')); const emojiList: Emoji[] = []; Object.keys(emojiLib).forEach(name => emojiList.push({ name, char: emojiLib[name].char })); console.log({emojiList}) const useStyles = makeStyles(theme => ({ code: { background: theme.palette.background.default, borderRadius: theme.spacing(.5), padding: theme.spacing(.5), fontFamily: 'Monospace', }, image: { maxWidth: '100%', maxHeight: '100%' }, })); const InlineSyntax: React.FC<InlineParserPropTypes> = ({ line }) => { const classes = useStyles(); if (!line) return null; const matchConceal = regex.conceal.local.exec(line); if (matchConceal) { if (line[0] === '!') return <img src={matchConceal[2]} alt={matchConceal[1]} className={classes.image} />; return <Link href={matchConceal[2]}>{matchConceal[1]}</Link>; } const matchEmoji = line.match(regex.emoji.local); if (matchEmoji) { const emoji = emojiList.find(emoji => emoji.name === matchEmoji[1]); return <span>{emoji ? emoji.char : line}</span>; } const matchCode = line.match(regex.code.local); if (matchCode) return <span className={classes.code}>{matchCode[1]}</span>; const matchBold = line.match(regex.bold.local); if (matchBold) return <b>{matchBold[1]}</b>; const matchItalic = line.match(regex.italic.local); if (matchItalic) return <i>{matchItalic[1]}</i>; const matchStrikeThrough = line.match(regex.strikeThrough.local); if (matchStrikeThrough) return <span style={{textDecoration: 'line-through' }}>{matchStrikeThrough[1]}</span>; if (line.match(regex.rawLink.global)) return <Link href={line}>{line}</Link>; return <>{line}</>; } export { splitter }; export default InlineSyntax;