search plugin support regular to replace paths

## Feature request

#### What problem does this feature solve?

Search plugin should support regular replace paths.

#### What does the proposed API look like?

#### How should this be implemented in your opinion?

function getAllPaths repalce mode change: `paths.indexOf(path)` to `paths.match(RegExp)`

#### Are you willing to work on this yourself?
yes.

Start in the search plugin at getAllPaths and inspect how paths are currently checked with paths.indexOf(path). Run the existing search-plugin tests, if available, before changing the path-matching behavior. Done means regular-expression path replacement works without breaking existing path searches.

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