Considering that one can't 'index by regex', I wonder how the backend works - does it actually run the regex against every source code line in the repository in a few hundred milliseconds? Sounds expensive! They must have thousands of machines! Maybe thats why they don't have a public codesearch tool for the whole internet...
https://cs.chromium.org/search/?q=%5Cb%5BA-Z0-9._%25%2B-%5D%...
Considering that one can't 'index by regex', I wonder how the backend works - does it actually run the regex against every source code line in the repository in a few hundred milliseconds? Sounds expensive! They must have thousands of machines! Maybe thats why they don't have a public codesearch tool for the whole internet...