Add built-in functions to work with strings

[gallyamb]

I've found at the docs that there are functions like strings.startswith, but they only supported in rtorrent-ps

It would be great to have such built-ins in original rtorrent codebase

Use case: I need to automate trackers list management. To be precise, I need to remove some trackers from torrent file on its insertion. Many of trackers in our country add the retracker.local tracker to the trackers list (it's something the local peer discovery and bep22 were created for at the same time). But nowadays this technique is no longer used by the ISPs. Hence, this trackers in torrents generates the errors and annoys me at the Flood UI with red rows

My solution is based on adding a handler to event.download.inserted event and then via t.multicall with conditional branch to disable that trackers

[stickz]

Have you tried using ruTorrent instead? It doesn't do that. It also has a retrackers plugin to accomplish this task.

There has been a lot of ruTorrent development in the past couple years. It has undergone a complete overhaul.

[rakshasa]

PR would be accepted that add string manipulation.