Multiple sets of word delimiters for double-click selection

Description of the new feature/enhancement

Currently, users can configure a single set of word delimiters (wordDelimiters) to be used for word boundary detection.
Depending on the context users need different sets of word delimiters.

For example (>< marks the double-click selection)

• selecting a full path Text before >/home/user-name/file< text after
• selecting a directory Text before /home/>user-name</file text after

Having a possibility to define multiple sets of word delimiters and to dynamically switch between them would support the user in quickly selecting what he intends to.

Proposed technical implementation details

Assuming that multiple sets of word delimiters could be defined then one possibility to provide a dynamic selection would be to use CTRL and ALT to toggle between the sets.
This way a user could double-click for the standard word delimiter selection, ALT-double-click for a set that only breaks on spaces to select full paths and CTRL-double-click to select path elements by using a set that breaks only on slash.

No files or tests are identified. Start by locating the existing wordDelimiters configuration and double-click word-boundary handling; clarify how multiple sets and CTRL/ALT switching should work. Done should cover standard word selection, full paths, and individual path elements.