Implement Subcategories

[ja-he]

I want to have categories be hierarchical, so that a category can have a parent category (which can have a parent category, etc.)

Syntactically I think :: would make the most sense. You'd have e.g. a category uni::math::calculus::weep that allows you to track all the time you spend weeping in relation to your calc class, categorized as math as part of your university curriculum. The upside would be that you could track as granularly as you wanted and still maintain categorization e.g. to get easy high-level summaries.

So if you have the following time totals tracked:

• uni: 10h
• uni::math: 20h
• uni::math::calc::weep: 5h

then the total for summarizing by uni would be 35h, the total for summarizing by uni::math would be 25.

[ja-he]

Alternatively: go more into the regex-direction:

• retain categories as a flat list (mostly for naming, coloring)
• let users write regexes anywhere that filtering is used
• user can choose to adhere to any category naming scheme they want and write the appropriate regexes.
• in this case goals would apply to another config section called 'groups' or something, characterized by regex(es) instead of categories