I created this plugin for Obsidian out of necessity. I’m a pretty messy note-taker, especially when I’m forced to focus more on getting the idea/task/reminder down ASAP rather than sparing a thought for how a note should be structured. In a recent project this meant primarily a single note, divided by headings and a date, everything else was mostly dot-point lists and indentation. This led to long notes and an eventual traffic-lights system for todo, doing, done Eg.

### @today
- thing A
  - sub-thing 1 🟢
  - sub-thing n 🟢
- thing B 🟠
  - sub thing 1 🟢
  - sub thing 2 - sub thing n 🔴

Eventually I needed a quick way to check which tasks still needed action/completion so I thought that being able to filter for all lines with certain regex matches could be useful way to get a quick view of where things are at. One thing led to another and then to the regex-line-filter plugin.

Here is demo of what it looked like at v1.0

Since then some community members suggested some great features which are now all implemented in version 1.3 released this month:

• Recently used filters can be pinned or saved.
• Saved ‘custom’ filters can be named and hotkey-assigned.
• Custom filters can be toggled on in tandem, widening or narrowing the lines displayed in the filtered view
• Child indents of a matched line can be included in filtered view
• Date-based template variable ‘literals’ can be injected into filters so you can quickly filter for {{today}}, {{yesterday}}, {{last-month}} or custom date formats using {{date:YYYY-MM-DD}} variations.

Hope some folks in the Obsidian community find it useful! Search for regex-line-filter in Community Plugins if you’re curious.

Repo here: github.com/64MM4-KN1F3/regex-line-filter