import htmlTrie from "./generated/encode-html.js"; import { xmlReplacer, getCodePoint } from "./escape.js"; const htmlReplacer = /[\t\n!-,./:-@[-`\f{-}$\x80-\uFFFF]/g; /** * Encodes all characters in the input using HTML entities. This includes * characters that are valid ASCII characters in HTML documents, such as `#`. * * To get a more compact output, consider using the `encodeNonAsciiHTML` * function, which will only encode characters that are not valid in HTML * documents, as well as non-ASCII characters. * * If a character has no equivalent entity, a numeric hexadecimal reference * (eg. `ü`) will be used. */ export function encodeHTML(data) { return encodeHTMLTrieRe(htmlReplacer, data); } /** * Encodes all non-ASCII characters, as well as characters not valid in HTML * documents using HTML entities. This function will not encode characters that * are valid in HTML documents, such as `#`. * * If a character has no equivalent entity, a numeric hexadecimal reference * (eg. `ü`) will be used. */ export function encodeNonAsciiHTML(data) { return encodeHTMLTrieRe(xmlReplacer, data); } function encodeHTMLTrieRe(regExp, str) { let ret = ""; let lastIdx = 0; let match; while ((match = regExp.exec(str)) !== null) { const i = match.index; ret += str.substring(lastIdx, i); const char = str.charCodeAt(i); let next = htmlTrie.get(char); if (typeof next === "object") { // We are in a branch. Try to match the next char. if (i + 1 < str.length) { const nextChar = str.charCodeAt(i + 1); const value = typeof next.n === "number" ? next.n === nextChar ? next.o : undefined : next.n.get(nextChar); if (value !== undefined) { ret += value; lastIdx = regExp.lastIndex += 1; continue; } } next = next.v; } // We might have a tree node without a value; skip and use a numeric entity. if (next !== undefined) { ret += next; lastIdx = i + 1; } else { const cp = getCodePoint(str, i); ret += `&#x${cp.toString(16)};`; // Increase by 1 if we have a surrogate pair lastIdx = regExp.lastIndex += Number(cp !== char); } } return ret + str.substr(lastIdx); } //# sourceMappingURL=encode.js.map