regular expressions 101 VS Cool Reader

Hint: test out your answer with regex101.com. - Source: dev.to / about 2 months ago

Regex101 — Free this website allows you to test and debug regular expressions (regex). It provides a regex editor and tester, as well as helpful documentation and resources for learning regex. - Source: dev.to / 3 months ago

Do not worry, it may look complicated. We will debunk the meaning in no time. Whenever in doubt, just call our good friend https://regex101.com/ to help you describe what’s going on. - Source: dev.to / 4 months ago

Regex101 - A great place for testing and learning about regular expressions. - Source: dev.to / 4 months ago

If I have convinced you that it is worth trying regular expressions, here is some material for further self-study. I introduce you the ultimate website https://regex101.com/, where you can write expressions interactively and it automatically verifies if they work and provides a detailed breakdown of what was actually entered. In practice, an invaluable tool that you can always come back to. - Source: dev.to / 4 months ago

An Android tablet and the CoolReader app. For me, it's simply the best eReader experience available. It's incredibly customisable. The only downside is it doesn't support PDF or AZW3, both of which can be reformatted to your preferred file type with Calibre anyway. Source: over 1 year ago

Cool reader is also another option https://sourceforge.net/projects/crengine/. Source: almost 3 years ago