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| 'use strict';
|
| module.exports = string => {
| if (typeof string !== 'string') {
| throw new TypeError('Expected a string');
| }
|
| // Escape characters with special meaning either inside or outside character sets.
| // Use a simple backslash escape when it’s always valid, and a \unnnn escape when the simpler form would be disallowed by Unicode patterns’ stricter grammar.
| return string
| .replace(/[|\\{}()[\]^$+*?.]/g, '\\$&')
| .replace(/-/g, '\\x2d');
| };
|
|
