Show me the regex implementation.

Unfortunately, the repository has minimal indexed code coverage (only 8 of 8 eligible files). The semantic search returned no results, which means the implementation details aren't fully available in the searchable index.

However, based on the README, you can see the expected behavior:

import escapeStringRegexp from 'escape-string-regexp';

const escapedString = escapeStringRegexp('How much $ for a 🦄?');
//=> 'How much \\$ for a 🦄\\?'

The function escapes RegExp special characters (like $ and ? in the example) while leaving non-special characters unchanged (like the emoji 🦄).

To see the actual implementation, I recommend:

1. Check the main entry point file (likely index.js, index.ts, or src/index.js)
2. Look for the regex pattern that matches special characters that need escaping
3. Review how the replacement is applied to the input string

The README notes that "only the minimal amount of escaping is done," which suggests the implementation uses a focused regex pattern rather than exhaustive escaping.

FOLLOW_UPS:

• What RegExp special characters does it escape?
• Does this library support both CommonJS and ESM?
• How does it handle Unicode characters like emojis?