securityos/node_modules/clean-regexp/index.js

36 lines
943 B
JavaScript

'use strict';
const escapeStringRegexp = require('escape-string-regexp');
const mapping = require('./lib/mappings');
const hasFlags = (regexFlags, replaceFlags) => {
if (!replaceFlags) {
return true;
}
// Check if every flag in the replace flags is part of the original regex flags
return replaceFlags.split('').every(flag => regexFlags.includes(flag));
};
module.exports = (regexp, flags) => {
flags = flags || '';
if (typeof regexp !== 'string') {
throw new TypeError(`Expected regexp to be of type \`string\`, got \`${typeof regexp}\``);
}
if (typeof flags !== 'string') {
throw new TypeError(`Expected flags to be of type \`string\`, got \`${typeof flags}\``);
}
for (const replace of mapping) {
const key = replace[0];
const replacement = replace[1];
if (hasFlags(flags, replacement.flags)) {
regexp = regexp.replace(new RegExp(escapeStringRegexp(key), 'g'), replacement.value);
}
}
return regexp;
};