import { getDefaultSanitizeOptions, getTextOnlySanitizeOptions, TEXT_WITH_HTML_RULES } from '@shared/core-utils' const defaultSanitizeOptions = getDefaultSanitizeOptions() const textOnlySanitizeOptions = getTextOnlySanitizeOptions() const sanitizeHtml = require('sanitize-html') const markdownItEmoji = require('markdown-it-emoji/light') const MarkdownItClass = require('markdown-it') const markdownItWithHTML = new MarkdownItClass('default', { linkify: true, breaks: true, html: true }) const markdownItWithoutHTML = new MarkdownItClass('default', { linkify: false, breaks: true, html: false }) const toSafeHtml = (text: string) => { if (!text) return '' // Restore line feed const textWithLineFeed = text.replace(//g, '\r\n') // Convert possible markdown (emojis, emphasis and lists) to html const html = markdownItWithHTML.enable(TEXT_WITH_HTML_RULES) .use(markdownItEmoji) .render(textWithLineFeed) // Convert to safe Html return sanitizeHtml(html, defaultSanitizeOptions) } const mdToOneLinePlainText = (text: string) => { if (!text) return '' markdownItWithoutHTML.use(markdownItEmoji) .use(plainTextPlugin) .render(text) // Convert to safe Html return sanitizeHtml(markdownItWithoutHTML.plainText, textOnlySanitizeOptions) } // --------------------------------------------------------------------------- export { toSafeHtml, mdToOneLinePlainText } // --------------------------------------------------------------------------- // Thanks: https://github.com/wavesheep/markdown-it-plain-text function plainTextPlugin (markdownIt: any) { let lastSeparator = '' function plainTextRule (state: any) { const text = scan(state.tokens) markdownIt.plainText = text.replace(/\s+/g, ' ') } function scan (tokens: any[]) { let text = '' for (const token of tokens) { if (token.children !== null) { text += scan(token.children) continue } if (token.type === 'list_item_close') { lastSeparator = ', ' } else if (token.type.endsWith('_close')) { lastSeparator = ' ' } else if (token.content) { text += lastSeparator text += token.content } } return text } markdownIt.core.ruler.push('plainText', plainTextRule) }