@expo/account-names

A small library that validates Expo account names.

The current rules are:

• At least three characters
• Fewer than 128 characters
• Contains only Latin letters, numbers, periods, underscores, and hyphens
• Starts with a letter or number and ends with a letter or number (no trailing punctuation)
• No consecutive punctuation characters

These rules have changed over time. Thus, there exist valid accounts with now-invalid names, and name validation needs to run only when choosing a name, not when loading an account or logging in.