verdnatura-chat/app/lib/methods/helpers/shortnameToUnicode/index.ts

47 lines
1.2 KiB
TypeScript

import emojis from './emojis';
import ascii, { asciiRegexp } from './ascii';
const shortnamePattern = new RegExp(/:[-+_a-z0-9]+:/, 'gi');
const replaceShortNameWithUnicode = (shortname: string) => emojis[shortname] || shortname;
const regAscii = new RegExp(`((\\s|^)${asciiRegexp}(?=\\s|$|[!,.?]))`, 'gi');
const unescapeHTML = (string: string) => {
const unescaped: { [key: string]: string } = {
'&': '&',
'&': '&',
'&': '&',
'&lt;': '<',
'&#60;': '<',
'&#x3C;': '<',
'&gt;': '>',
'&#62;': '>',
'&#x3E;': '>',
'&quot;': '"',
'&#34;': '"',
'&#x22;': '"',
'&apos;': "'",
'&#39;': "'",
'&#x27;': "'"
};
return string.replace(/&(?:amp|#38|#x26|lt|#60|#x3C|gt|#62|#x3E|apos|#39|#x27|quot|#34|#x22);/gi, match => unescaped[match]);
};
const shortnameToUnicode = (str: string): string => {
str = str.replace(shortnamePattern, replaceShortNameWithUnicode);
str = str.replace(regAscii, (entire, m1, m2, m3) => {
if (!m3 || !(unescapeHTML(m3) in ascii)) {
// if the ascii doesnt exist just return the entire match
return entire;
}
m3 = unescapeHTML(m3);
return ascii[m3];
});
return str;
};
export default shortnameToUnicode;